TW419382B - Absorbing agent, method of manufacturing same and absorbent product containing same - Google Patents
Absorbing agent, method of manufacturing same and absorbent product containing same Download PDFInfo
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- TW419382B TW419382B TW84106029A TW84106029A TW419382B TW 419382 B TW419382 B TW 419382B TW 84106029 A TW84106029 A TW 84106029A TW 84106029 A TW84106029 A TW 84106029A TW 419382 B TW419382 B TW 419382B
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419382 A7 B7 五、發明説明( 經濟部中央標隼局貝工消費合作社印製 技術領域 本發明係關於適用於例如紙尿布(用過即丢之尿布)、衛 生棉等所謂失禁墊片等衛生材料之吸水劑及其製造方法以 及含有吸水劑之吸收性物品。 先前技術 近年來,紙尿布、衛生棉等所謂失禁塾片等衛生材料之 構成材料中,以吸收體液爲目的之吸水性樹脂被廣泛地利 用0 已知之上述吸水性樹脂有例如聚丙埽酸部分中和物架橋 體(日本專利公報特開昭5_5.-84304號、特開昭55-108407 戚、特開昭55-133413號)、殿粉—丙婦赌接枝聚合物之水 解物(日本專利公報特開昭46-43995號)、澱粉—丙烯酸接 枝聚合物之中和物(日本專利公報特開昭5 1-1 2 5 46 8號)、 醋酸乙.烯酯-丙烯酸酯共聚物之驗化物(日本專利公報特開 昭52-14689號)、丙烯腈共聚物或丙烯醯胺共聚物之水解 物(曰本專利公報特開昭53-1 59 5 9號)或其架橋劑 '陽離 子性單體之架橋劑(曰本專利公報特開賠58 154709號、特 開昭58-1547 10號)等。 上述吸水性樹脂所須具備之特性有:與體液等水性液體 接觸時具有優異之吸水量或吸水速度、凝膠強度、從含有 水性液體之材料中吸取水分之吸力等。以往,同時具備數 種此等吸收特性中之種種特定範園之物性、且在使用於紙 尿布或衛生棉等衛生材料時具有優異性能(吸水特性)之吸 水性樹脂或使用該吸水性樹脂之吸收體或吸收性物品被提 -4 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公楚) 請 先 閱 之 注 意 I. 訂. 419382 A7 B7 五、發明説明(2) 經濟部中央標準局員工消費合作社印製 案出來。例如,組合特定之凝膠容量、切變彈性係數 (shear e 1 as ticity)及抽出性聚合物含量之吸水性樹脂(美 國專利第4,6 5 4,03 9號);具有特定吸水量、吸水速度凝膠 強度之吸水性樹脂及使用該吸水性樹脂之紙尿布或衛生棉 (曰本專利公報特開昭60-185550號、特開昭60-18555 1 號、特開昭60-185804號);使用具有特定之吸水量、吸 水速度及凝膠安定性之吸水性樹脂之紙尿布(日本專利公 報特開昭60- 1 85805號);配置有具有特定之吸水量、吸 引力及水可溶成分量之吸水性樹脂之吸水性物品(曰本專 利公報特開昭63-21902號)、含有具特定吸水量' 加壓下 之吸水量及凝膠破壞強度之吸水性樹脂之吸水性衛生用品 (日本專利公報特開昭63-99861號);含有具特定吸水量 及加壓下之吸水速度之吸水性樹脂之紙尿布(曰本專利公 報特開平2-34167號);含有具特定之加壓下吸水量及粒 徑之吸水性樹脂之吸水劑(歐洲專利第3 3 9,46 1號);含有 特定量以上之具特定之負荷時變形及吸收指數之吸水性樹 脂之吸水生複合材料(歐洲專利第532,002號)等。 另一方面,紙尿布或衛生棉等衛生材料向高機能化及薄 型化發展,一片衛生材料之吸水性樹脂之使用量或主要由 吸水性樹脂與親水性纖維所構成之吸收體中之吸水性樹脂 之重量%(以下稱樹脂濃度)有增加的傾向。即,減少鬆比 重(bulk relative density)小的親水性纖維,增加吸水性 優良且鬆比重大的吸水性樹脂,以提高吸收體中之吸水性 樹脂之比率,藉此追求不降低吸水量而使衛生材料薄型化 本紙張又度適用中國國家標率(CNS ) Λ4规格(210X297公釐) (請先聞讀背面之注意事項再填寫本頁) 訂 一 .ΛΓ 419382 A7 B7 五、發明説明(3 經濟部中央標準局員工消費合作社印製 之目的。 但是,本案之發明人等爲了提高衛生材料之吸水量進行 了各種使吸收體中之樹脂濃度增加之研究後,發現若要使 用樹脂濃度高於以往之吸收體且防止水性液體自衛生材料 中滲漏出來之問題,只控制上述吸水量、吸水速度、凝膠 強度、吸引力等特性是不夠的。例如,近年來特別受到注 目之只有在加壓下吸水量非常大的吸水性樹脂中,若提高 樹脂濃度,則會產生吸收體中之液擴散性極低之現象等問 題。 又,本案發明人著眼於樹脂濃度高於以往之吸收體之吸 水特性,.進行種種研究的結果,發現若將習知之吸水性樹 脂及親水性纖維之混合體做爲吸收體使用,則在樹脂濃度 低之時雖表現一定程度之吸水特性,樹脂濃度超過40重量 %以後,則發生液擴散性急速地降低,單位重量吸收體之 吸水量低下之現象,及經過長時間後吸水能力降低、水性 液體的回流量增加之現象。即,若使用習知之吸水性樹脂 及親水性纖維之混合體,則發生上述問題點。 因此,本發明之目的在於解決上述問題點,提供例如用 在衛生材料等之時具有幾乎不受樹脂濃度或吸收體之構造 影響,隨時具有非常高之擴散性,且長時間保持安定之吸 水量等優異性質(吸水特性)之吸水劑及其製造方法,以及 含該吸水劑之吸收性物品。又,本發明之另一目的在於提 供例如用在衛生材料等之時,具有即使提高樹脂之濃度亦 隨時保持非常高之液擴散性及吸水量等優異性質之吸水劑 請 閲 讀 背 面 之 注 意 事 項 再.填、 寫 本 頁 訂 -6 - 本紙適用中國國家標準(CNS ) A4規格(210X297公釐) 4133 82 at B7 五、發明説明(4 ) 、吸收體及吸收性物品。 發明之揭示 本案發明人爲了達成上述目的,針對吸水劑及其製造方 法以及含有該吸水劑之吸收性物品專心研究之後發現,使 用某一特定量之某一特定組成之架橋劑,在該架橋劑及分 散劑之存在下,使以50莫耳。/。以上被中和之丙烯酸爲主成 分之親水性不飽和性單體進行水溶液聚合,合成吸水劑前 驅體,將此吸水劑前驅體之含水率及粒徑調整於特定的範 圍之後,在表面架橋劑之存在下進行加熱處理之製造方法 製得之吸水劑,.具有上述以往之吸水性樹脂不具備之優異 性能(吸水特性),即,即使在吸水性樹脂之用量多之時或 是吸收體中之樹脂濃度高之時,亦具有幾乎不受吸收體之 構造等影響,擴散性非常高,且長時間保持安定之吸水量 等優異性能。又發現,合成某一特定之吸水劑前驅體,並 在特定之表面架橋劑之存在下加熱處理此吸水劑前驅體之 製造方法所製得之吸水劑(含有該吸水劑之吸收劑及吸收 性物品亦同)在吸水性樹脂之用量較多之時或樹脂濃度高 之時亦具有液擴散性非常高且保持吸水量等優異性質,而 完成本發明。 經濟部中央標準局負工消費合作社印製 (請先聞讀背面之注意事項再填寫本頁) 即,爲了決解決上述問題,本發明之吸水劑之特徵爲其 吸收開始起60分鐘後之擴散吸收倍率爲25 g/g以上。 又,爲了決解決上述問題,本發明之吸收體之特徵爲含 有40重量%以上之該吸水劑。 又,爲了決解決上述問題,本發明之吸收性物品之特徵 -7- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) A7 B7 五、發明説明(5 ) 經濟部中央標準局員工消費合作社印製 (419382 爲其吸收開始起60分鐘後之擴散吸收倍率爲25g/g以上, 且具有包含水可溶成分在0以上及7重量%以下之吸水劑之 吸收體。 以下詳述本發明。 本發明中所謂的擴擴吸收倍率,係指將吸水性樹脂之單 位面積之重量高、且樹脂粒子因外力而互相密著之狀態下 之水性液體之擴散力列入考慮,而評估吸水劑或吸收體之 吸水量之新穎物性質。上述擴散吸收倍率係從在一定之測 定條件下在吸收開始起經過一定時間之後(例如2 〇分鐘後 、3 0分鐘後、6 0分鐘後)之測定値算出者。又,於後段之 實施例中將詳述擴散吸收倍率之測定方法。 以擴散吸收倍率,可以評估吸水劑或吸收體等(即吸水 性樹脂)之新特性《即,藉此擴散吸收倍率,可以評估吸 水性樹脂可以使水性液體往樹脂層方向(以下稱橫方向)均 一快速擴散到什麼程度,及吸水性樹脂全體實際上具有什 麼程度的吸水量。水性液體在橫方向上的液擴散性(液擴 散能力及液傳達能力)對水性液體之大量吸收而言爲一重 要因素。從上述評估的結果,可以簡單地預測例如主要由 吸水劑(吸水性樹脂)與親水性纖維所構成之吸收體,特別 是吸水性樹脂之重量%(以下稱樹脂濃度)高之吸收體中之 吸水性樹脂之吸水特性。又,吸收體之構造於後説明之。 又,在上述先前申請案中,可見到許多評估加壓下吸水 量的文獻。但是,以往在評估該吸水量時只在與樹脂層垂 直的方向上(以下稱縱方向)進行。因此,水性液體在橫方 -8 - 本紙張尺度適用中國國家標準(CNS 格(21GX297公楚) (請先閲讀背面之注意事項再填寫本頁)419382 A7 B7 V. Description of the invention (Printed by the Central Bureau of Standards, Ministry of Economic Affairs, Shellfish Consumer Cooperatives) TECHNICAL FIELD The present invention relates to sanitary materials suitable for use in so-called incontinence pads such as disposable diapers (diapers that have been used up) and sanitary napkins. Water absorbent, its manufacturing method, and absorbent articles containing water absorbent. In the past, in recent years, water absorbent resins for the purpose of absorbing body fluids have been widely used as constituent materials of sanitary materials such as incontinence pads such as paper diapers and sanitary napkins. The above-mentioned water-absorbent resins that are known to be used include, for example, polyacrylic acid partially neutralized bridge members (Japanese Patent Publication No. Sho 5_5.-84304, JP Sho 55-108407, and JP 55-133413), Palace powder-hydrolysate of Gumbo Graft Polymer (Japanese Patent Gazette No. 46-43995), starch-acrylic acid graft polymer neutralized product (Japanese Patent Gazette No. 5-1-1 2 5 46 No. 8), a test compound of an ethyl acetate-acrylate copolymer (Japanese Patent Gazette No. 52-14689), a hydrolysate of an acrylonitrile copolymer or an acrylamide copolymer (referred to as this patent publication Japanese Patent Application Laid-Open No. 53-1 59 5 9) or a bridging agent of its cationic monomer (Japanese Patent Publication No. 58 154709, Japanese Patent Laid-Open No. 58-1547) and the like. The characteristics required are: excellent water absorption or water absorption speed when in contact with aqueous liquids such as body fluids, gel strength, and the suction force for absorbing water from materials containing aqueous liquids. In the past, several such absorption characteristics were simultaneously available. A variety of the specific properties of the garden, and when used in sanitary materials such as paper diapers or sanitary napkins, the water-absorbent resin or the absorbent body or absorbent article using the water-absorbent resin is raised-4 This paper size applies to China National Standard (CNS) A4 (210X297). Please read the note I. Order. 419382 A7 B7 5. Invention Description (2) Printed out by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. For example A water-absorbent resin combining specific gel capacity, shear e 1 as ticity, and extractable polymer content (US Patent No. 4,6 5 4,03 9); Water-absorbent resin with a water absorption rate, gel strength, and a paper diaper or sanitary napkin using the water-absorbent resin (Japanese Patent Publication No. Sho 60-185550, JP Sho 60-18555 No. 1, JP Sho 60- 185804); a paper diaper using a water-absorbent resin having a specific water absorption amount, speed and gel stability (Japanese Patent Gazette No. 60-1185805); equipped with a specific water absorption amount, attractiveness and A water-absorbent article of a water-absorbent resin having a water-soluble content (Japanese Patent Laid-Open No. 63-21902), a water-absorbent resin containing a water-absorbent resin having a specific water-absorption amount, water absorption under pressure, and gel breaking strength Sanitary products (Japanese Patent Publication No. 63-99861); diapers containing a water-absorbent resin having a specific water absorption rate and water absorption rate under pressure (Japanese Patent Publication No. Hei 2-34167); Water absorbent for water-absorbent resin with specific water absorption and particle size under pressure (European Patent No. 3 3 9,46 1); water absorption of water-absorbent resin with deformation and absorption index under a specific load containing a specific amount or more Health Compound Material (European Patent No. 532,002) and the like. On the other hand, hygienic materials such as paper diapers and sanitary napkins are becoming more functional and thinner. The amount of water-absorbent resin used in a piece of sanitary material or the water-absorbency in an absorbent body mainly composed of water-absorbent resin and hydrophilic fibers The weight% of resin (hereinafter referred to as resin concentration) tends to increase. That is, reducing hydrophilic fibers with a small bulk relative density and increasing water-absorbent resins having excellent water absorption and high bulk specific gravity to increase the ratio of the water-absorbent resin in the absorbent body, thereby pursuing the goal of not reducing the water absorption. The thinning of sanitary materials is suitable for China National Standards (CNS) Λ4 specifications (210X297 mm) (Please read the precautions on the back before filling this page) Order one. ΛΓ 419382 A7 B7 V. Description of the invention (3 Printed by the Consumer Standards Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. However, the inventors of this case conducted various studies to increase the resin concentration in the absorbent body in order to increase the water absorption of sanitary materials. In the past, the problem of the absorbent body and the prevention of leakage of aqueous liquid from sanitary materials, it is not enough to control the above-mentioned water absorption, water absorption speed, gel strength, attractiveness, etc. For example, in recent years, it has only attracted attention. In a water-absorbent resin that has a very large water absorption under pressure, if the resin concentration is increased, the liquid diffusivity in the absorbent will be extremely low. In addition, the inventors of this case focused on the water absorption characteristics of resins with higher concentrations than conventional absorbents. As a result of various studies, they found that if a mixture of a conventional water-absorbent resin and hydrophilic fibers is used as the absorber, When the resin concentration is low, although it exhibits a certain degree of water absorption characteristics, after the resin concentration exceeds 40% by weight, the liquid diffusivity rapidly decreases, the water absorption per unit weight of the absorber is low, and the water absorption after a long time Phenomenon that the capacity is reduced and the return flow of the aqueous liquid is increased. That is, if a conventional mixture of a water-absorbent resin and a hydrophilic fiber is used, the above-mentioned problems occur. Therefore, an object of the present invention is to solve the above-mentioned problems, and provide, for example, A hygroscopic agent and its manufacturing method that are hardly affected by resin concentration or the structure of the absorbent body, have very high diffusivity at any time, and maintain stable water absorption for a long period of time (hygroscopic properties), And an absorbent article containing the water absorbing agent. Another object of the present invention is to provide For hygienic materials, etc., water-absorbing agents with excellent properties such as high liquid diffusivity and water absorption can be maintained at any time even if the resin concentration is increased. Please read the precautions on the back again. National Standard (CNS) A4 specification (210X297 mm) 4133 82 at B7 V. Description of the invention (4), absorber and absorbent article. Disclosure of the Invention In order to achieve the above purpose, the inventor of the present invention aimed at a water-absorbing agent, a manufacturing method thereof, and After intensive research on absorbent articles containing the water-absorbing agent, it was found that the use of a specific amount of a bridging agent of a specific composition, in the presence of the bridging agent and dispersant, was 50 mol. The hydrophilic unsaturated monomer with acrylic acid as the main component is polymerized in an aqueous solution to synthesize a water-absorbing agent precursor. After adjusting the water content and particle size of the water-absorbing agent precursor to a specific range, it is performed in the presence of a surface bridging agent. The water-absorbing agent prepared by the heat-treating manufacturing method has excellent properties (water-absorbing properties) that the conventional water-absorbing resins do not have. That is, even when the amount of the water-absorbent resin is large or the resin concentration in the absorbent body is high, it has almost no influence on the structure of the absorbent body, has a very high diffusivity, and maintains a stable water absorption amount for a long time. Excellent performance. It was also found that a water-absorbing agent (a water-absorbing agent-containing absorbent and absorbent) prepared by a method for synthesizing a specific water-absorbing agent precursor and heating-treating the water-absorbing agent precursor in the presence of a specific surface bridging agent The same is true for articles) when the amount of the water-absorbent resin is large or when the resin concentration is high, the liquid diffusivity is very high and the water absorption capacity is maintained, and the present invention has been completed. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page). That is, in order to solve the above problems, the water-absorbing agent of the present invention is characterized by its diffusion after 60 minutes from the start of absorption. The absorption ratio is 25 g / g or more. In order to solve the above problems, the absorbent body of the present invention is characterized by containing the water-absorbing agent in an amount of 40% by weight or more. In addition, in order to solve the above problems, the characteristics of the absorbent article of the present invention-7- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) A7 B7 V. Description of the invention (5) Central Bureau of Standards, Ministry of Economic Affairs Printed by the Employee Consumption Cooperative (419382 is an absorber having a diffusion absorption rate of 25 g / g or more after 60 minutes from the start of absorption and having a water-absorbing agent with water-soluble content of 0 to 7 wt%. Details are described below. The present invention The so-called expanded absorption ratio in the present invention refers to the evaluation of the diffusivity of an aqueous liquid in a state where the weight of the water-absorbent resin per unit area is high and the resin particles are in close contact with each other due to external forces. Novel properties of water absorption of water absorbent or absorbent. The above-mentioned diffusion absorption ratio is after a certain period of time has elapsed from the start of absorption under certain measurement conditions (for example, after 20 minutes, after 30 minutes, after 60 minutes) The measurement method is calculated by the calculation method. The method of measuring the diffusion absorption ratio will be described in detail in the examples in the following paragraphs. With the diffusion absorption ratio, it is possible to evaluate the water absorbent or absorbent. (That is, the water-absorbent resin), a new feature "that is, by using the diffusion absorption ratio, it is possible to evaluate to what extent the water-absorbent resin can uniformly and rapidly diffuse the aqueous liquid in the direction of the resin layer (hereinafter referred to as the horizontal direction), and the overall actual performance of the water-absorbent resin What is the amount of water absorption? The liquid diffusivity (liquid diffusing ability and liquid transmitting ability) of the aqueous liquid in the horizontal direction is an important factor for the large absorption of the aqueous liquid. From the results of the above evaluation, it can be simply predicted For example, an absorbent body mainly composed of a water-absorbent (water-absorbent resin) and hydrophilic fibers, and particularly a water-absorbent resin in an absorbent body having a high weight% (hereinafter referred to as resin concentration) of the water-absorbent resin. The structure of the body will be described later. Also, in the above-mentioned previous applications, many documents for evaluating the amount of water absorption under pressure can be seen. However, in the past, the amount of water absorption was evaluated only in a direction perpendicular to the resin layer (hereinafter referred to as Vertical direction). Therefore, the water-based liquid is in the horizontal square -8-This paper size applies the Chinese national standard (CNS grid (21GX297) Chu) (Please read the notes on the back before filling in this page)
4193k A7 B7五、發明説明(6 ) 經濟部中央標準局員工消費合作社印製 向上如何快速地擴散則幾乎未見評估。因此,從上述以往 的評估結果不能正確地預測例如使用樹脂濃度高之吸收體 之紙尿布等之中之該吸收體之吸水特性等。 本發明中所謂水可溶成分量係評估上述擴散吸收倍率優 良之吸水性樹脂在經過長時間後之水性液體之再擴散性或 一旦吸水後之長時間保持水性液體之能力的物性値。上述 水可溶成分量係在一定條定下測量而得。又,水可溶成分 量之測定方法則在後段之實施例中詳述之。 擴散吸收倍率在本發明之範圍内但水可溶成分量在本發 明之範園外之吸水性樹脂具有經過長時間之後水性液體的 回流量變多的傾向。相對於此,本發明之吸水劑(即吸水 性樹脂)同時滿足上述擴散吸收倍率及水可溶成分量2個物 性値,因此具備優異之性能。 首先,茲説明具有幾乎不受樹脂濃度或吸收體之構造影 響、隨時保持非長高之液擴散性及長時間安定之吸水量等 優異性能(吸水特性)之吸水劑及其製造方法以及含有該吸 水劑之吸收性物品。 本發明之吸水劑之擴散吸收倍率爲25g/g以上,且水可 溶成分量爲7重量%以下。擴散吸收倍率不到25g/g之吸水 劑(即吸水性樹脂)在樹脂濃度高(高濃度)之吸收體中之橫 方向液擴散性較差,吸收體的吸收容量較小。擴散吸收倍 率較佳爲28g/g以上,更佳爲30g/g以上,最佳爲32g/g以 上。又,即使擴散吸收倍率在25g/g以上,水可溶成分量 超過7重量%之吸水性樹脂在經過長時間以後的水性液體 (請先閲讀背面之注意事項再填寫本頁) 訂 0. JR 一 -9- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) A7 B7 經濟部中央標準局舅工消費合作社印製 419382 五、發明説明( 回流量有時會較多。水可溶成分量較佳爲5重量。/〇以下’ 更佳爲3重量%以下。在本發明中,擴散吸收倍率係定義 成在一定之測定條件下在吸收開始起例如6 〇分鐘後之測定 値,但在上述擴散吸收倍率之外,吸收開始起20分鐘後之 測定値所計算出的擴散吸收倍率爲i 5 g/g以上之吸水劑較 佳,20g/g以上之吸水劑更佳。 本發明之吸收性物品之特徵在於含有具有上述優異特性 之吸水劑做爲吸收體,但該吸收體除了吸水劑外亦可包含 必要之親水性纖維。而吸收體係由例如吸水劑及親水性纖 維所構成之時,吸收體之構造可爲例如將吸水劑與親水性 纖維均句地混合的構造、在層狀之親水性纖維間夾持吸水 劑之構造、將吸水劑與親水性纖維均句地混合形成層狀再 於其上積層層狀之親水性纖維之構造、將吸水劑與親水性 纖維均勻地混合形成層狀再於其與形成層狀之親水性纖維 之間夹持吸水劑之構造等。再者,亦可爲對吸水劑摻配特 定量之水以使該吸水劑形成片狀之構造。又,吸收體之構 造並不限於如上例示之構造。 上述親水性纖維可爲例如得自木材之機械紙漿、化學紙 漿、半化學紙漿、溶解紙漿等纖維表纖維及嫘縈、醋酸酿 +人造纖維素纖維等。如上例示之纖維中,纖維素纖維爲 較佳者。又,親水性纖維亦可含有聚醯胺、聚酯、聚烯煙 等合成纖維《又’親水性纖維並不限於如上例示之纖維。 爲了使本發明之吸水劑具有優異之特性,該吸收體中之 親水性纖維之比例較佳爲〇以上及6 〇重量。/。以下,更佳爲 -10- 表紙張尺度適用中國國家標準(CNS ) A4規格(210X2.97公釐) (請先聞讀背面之注意事項再,先寫本頁)4193k A7 B7 V. Description of the invention (6) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs How to spread rapidly upward has hardly been evaluated. Therefore, it is impossible to accurately predict, for example, the water absorption characteristics of the absorbent body in a paper diaper or the like using an absorbent body having a high resin concentration from the conventional evaluation results. The amount of the water-soluble component in the present invention is a physical property that evaluates the re-diffusibility of the water-absorbent resin with excellent diffusion absorption rate over a long period of time or the ability of the water-absorbent resin to retain the liquid-phase over a long period of time after water absorption. The amount of the water-soluble component is measured under a certain condition. The method for measuring the amount of water-soluble components is described in detail in the examples in the following paragraphs. A water-absorbent resin having a diffusion absorption ratio within the range of the present invention but having a water-soluble content outside the scope of the present invention tends to increase the amount of the aqueous liquid return after a long period of time. In contrast, the water-absorbing agent (that is, the water-absorbing resin) of the present invention satisfies the two physical properties 扩散 of the above-mentioned diffusion absorption ratio and water-soluble content, and therefore has excellent performance. First, a water-absorbing agent having almost no influence on resin concentration or the structure of an absorbent body, and having excellent properties (water absorption characteristics) such as long-term liquid diffusivity and stable water absorption over a long period of time, a method for manufacturing the same, and a method containing the same Absorbent article. The diffusion absorption ratio of the water-absorbing agent of the present invention is 25 g / g or more, and the amount of water-soluble components is 7% by weight or less. A water-absorbing agent having a diffusion absorption rate of less than 25 g / g (that is, a water-absorbing resin) has poor lateral liquid diffusivity in an absorbent body with a high resin concentration (high concentration), and the absorbent body has a small absorption capacity. The diffusion absorption ratio is preferably 28 g / g or more, more preferably 30 g / g or more, and most preferably 32 g / g or more. In addition, even if the diffusion absorption rate is above 25g / g, and the water-soluble content of the water-absorbent resin exceeds 7% by weight, the aqueous liquid after a long period of time (please read the precautions on the back before filling in this page) Order 0. JR 1-9- This paper size applies Chinese National Standard (CNS) A4 (210X297 mm) A7 B7 Printed by the Central Standards Bureau of the Ministry of Economic Affairs and printed by the Consumers' Cooperative 419382 5. Description of the invention (Sometimes the return flow will be more. Water can be The amount of the soluble component is preferably 5 wt./% or less. More preferably, it is 3 wt% or less. In the present invention, the diffusion absorption rate is defined as the measurement under a certain measurement condition after the start of absorption, for example, 60 minutes. However, in addition to the above-mentioned diffusion absorption ratio, a water-absorbing agent having a diffusion absorption ratio of i 5 g / g or more calculated from a measurement 20 minutes after the start of absorption is preferable, and a water-absorbing agent having 20 g / g or more is more preferable. The absorbent article of the present invention is characterized in that it contains a water-absorbing agent having the above-mentioned excellent characteristics as an absorbent body, but the absorbent body may contain necessary hydrophilic fibers in addition to the water-absorbing agent. In the case of hydrophilic fibers, the structure of the absorbent body may be, for example, a structure in which a water-absorbing agent and a hydrophilic fiber are uniformly mixed, a structure in which a water-absorbing agent is sandwiched between layered hydrophilic fibers, and a water-absorbing agent and hydrophilicity. The fibers are uniformly mixed to form a layered structure and a layered layer of hydrophilic fibers is laminated thereon. A water-absorbing agent and a hydrophilic fiber are evenly mixed to form a layered structure and then sandwiched between the layered and the layered hydrophilic fibers. Structure of water-absorbing agent, etc. Furthermore, a specific amount of water may be added to the water-absorbing agent to form a sheet-like structure of the water-absorbing agent. In addition, the structure of the absorbent body is not limited to the structure exemplified above. The hydrophilic fiber described above It can be, for example, mechanical surface pulp, chemical pulp, semi-chemical pulp, dissolving pulp and other fiber surface fibers and concrete, acetic acid + artificial cellulose fibers, etc. obtained from wood. Among the fibers exemplified above, cellulose fibers are preferred. In addition, the hydrophilic fiber may contain synthetic fibers such as polyamide, polyester, and polyolefin smoke. "Hydrophilic fibers are not limited to the fibers exemplified above. In order for the water-absorbing agent of the present invention to have With different characteristics, the ratio of hydrophilic fibers in the absorbent body is preferably above 0 and 60% by weight. /, Below, more preferably -10- Table paper size applies Chinese National Standard (CNS) A4 specification (210X2.97) (Mm) (Please read the notes on the back before writing this page)
." 4193 82 at _______ B7 經濟部中央操準局貞工消費合作社印製 五、發明説明(8 ) 20重量。/。以上及40重量%以下。又,雖然該吸收體中之樹 脂濃度越高越能顯現本發明之吸收劑或吸收體之特性,但 不論吸收體中親水性纖維之比例如何,本發明之吸水劑可 均可充分地發揮其性能。又,吸水劑之性幾乎不受吸收體 構造的影響。 又’吸收體中之親水性纖維之比例較少時,亦可用接著 性黏結劑接著吸收體(即親水性纖維)。接著親水性纖维之 後,可提高吸收體使用前或使用中之該吸收體之強度及保 形性。 上述接著性黏結劑之例有聚乙烯、聚丙烯、乙烯—丙烯 共聚物、1-丁缔-乙烯共聚物等聚缔烴纖維等之熱融接纖 維或具有接著性之乳勝等。此等接著性黏結劑可單獨使用 亦可混合2種以上使用。親水性纖維與接著性黏結劑之重 量比較佳在50/50〜99/1之範圍内,更佳在70/3〇〜95/5 之範圍内,再更佳在80/2 0〜95/5之範圍内。 本發明之吸水劑係使用某一特定量之某一特定组成之架 橋劑,在該架橋劑及分散劑之存在下,使以50莫耳%以上 被中和之丙烯酸爲主成分之親水性不飽和性單體進行水溶 液聚合,將製得之吸水劑前驅體之含水率及粒徑調整於特 定的範園之後,在表面架橋劑之存在下進行該吸水劑前驅 體之加熱處理之製造方法而製得。 本發明中之原料親水性不飽和單體之主成分爲丙烯酸及 其中和物。爲提高吸水劑之吸水特性,丙烯酸之5〇莫耳% 以上較佳以例如驗金屬鹽、錢·鹽或胺鹽等中和。又,爲進 -11 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) I.------ 17^"'裝— I Γ. (請先鬩讀背面之注意事項再填寫本頁) -訂 419382 A7 ___^____B7五、發明説明(9 ) 經濟部中央標準局貝工消費合作社印製 一步提高吸水劑之吸水特性,丙烯酸之65莫耳%〜80莫耳 。/〇被左右被中和者更佳。 上述親水性不飽和單體可視需要包含丙晞酸以上之單體 。丙烯酸以外之單體並不特別限定,具體而言,可爲甲基 丙烯酸、馬來酸、乙烯磺酸、苯乙缔磺酸、2-(甲基)丙晞 醯乙基磺酸、2-(甲基)丙晞醯丙基磺酸等陰離子性不飽和 單體及其鹽;丙晞醯胺、曱基丙烯醯胺、N-乙基(甲基)丙 晞醯胺' N-n-丙基(甲基)丙烯醯胺、N-異丙基(甲基)丙 烯醯胺、N,N-二甲基(甲基)丙烯醯胺、2-經乙基(甲基) 丙烯酸酯、2-經丙基(甲基)丙烯酸酯、甲氧聚乙二醇(甲 基)丙晞酸酯、聚乙二醇(甲基)丙烯酸酯、乙烯基吡啶、 N-丙烯醯基吡咯烷等非離子性含親水基不飽和單體; N,N -二甲基胺基乙基(甲基)丙晞酸醋、ν,Ν -二乙基胺基 乙基(曱基)丙烯酸酯、Ν,Ν-二曱基胺基丙基(甲基)丙烯酸 酯、Ν,Ν-二甲基胺基乙基(甲基)丙烯酸醯胺及其四級鹽 等陽離子性界面活性劑。使用此等其他不飽和單之時,其 用量相對於主成分之丙烯酸及其中和物之和計量宜爲5〇莫 耳%以下。 本發明中之架橋劑係具有複數官能基(以下稱多官能)之 丙烯酸酯爲首之不飽和羧酸酯類中,碳原子數爲6以下之3 價以上之醇(以下稱3價以上之醇)與不飽和羧酸之酯化反 應或3價以上之醇與不飽和羧酸酯之酯交換反應所製得者 。但是,在目前,難以用工業規模以高選擇性及高收率且 廉價地得到上述3價以上之醇之所有氫氡基與該不飽和幾 3裝— - ' I-. (請先閱讀背面之注意事項再,亦寫本頁) r 訂- Γ -12- CNS ) Α4规格(210X2.97公釐) Γ 419382 Α7 Β7 五、發明説明(10 ) 經濟部中央標準局員工消費合作社印製 酸形成酯鍵結之不飽和羧酸酯(即所要的不飽和羧酸酯)。 再者,雖視反應條件而有所不同,但若以工業規模合成上 述不飽和羧酸酯類,則會大量產生分子中含有該醇骨架2 個以上之高沸成分,取代所要的不飽和羧酸酯。 因此,本案發明人等爲了使用工業上可獲得之不飽和羧 酸酯類,即含有該高沸點成分之不飽和羧酸酯類做爲架橋 劑,使親水性不飽和單體進行水溶液聚合,得到性能優越 的吸水性樹脂,而致力進行研究。結果得知,用含有該高 沸點成分之不飽和羧酸酯類進行水溶液聚合時,吸水劑之 擴散吸收倍率難以提高,水可溶成分量亦難以降低。因此 ,爲了得到擴散吸收倍率或液擴散性等性能優越、且水可 溶成分量降低之吸水性樹脂(即吸水劑),致力進行研究。 結果發現,只有在分散劑之存在下使用特定用量之高沸點 成分之含量控制在特定範圍内之架橋劑才可得到水可溶成 分量大幅降降且擴散吸收倍率等之性能優越之吸水劑。 即,本發明中所用之架橋劑係由:以由破原子數爲6以 下之3價以上之醇與不飽和羧酸之酯化物所構成且該3價以 上之醇之所有氫氧基全部與該不飽和羧酸形成酯鍵結之化 合物之分子量爲1之時,相對於此化合物之分子量之比在 0.7以上及1.3以下之範圍内之架橋劑主成分,及分子中含 有上述醇骨架2個以上之高沸點成分所構成,且該架橋劑 主成分與高沸點成分之重量比在75/2 5〜99/1之範圍。 製備本發明之架橋劑時可用之3價以上之醇並不特別限 制,但較佳爲甘油、三羥甲基乙烷、四羥甲基乙烷、三羥 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS ) A4規格(2I0X297公釐) 經濟部中央標準局員工消費合作社印製 f 4193 82 A7 B7 五、發明説明(11 ) 曱基丙境、四經基乙院、季戊四醇等。其中,三經甲基丙 燒爲特佳者。又,製備架橋劑時可用之不飽和羧酸可爲具 有上述羧基之親水性不飽和單體,丙烯酸爲特佳者。 如上所述,架橋劑主成分可爲以上述3價以上之醇爲醇 成分並以上述不飽和複酸爲酸成分之多官能不飽和幾酸醋 類中,該3價以上之醇之所有氫氧基與該不飽和羧酸形成 酯鍵結之化合物之分子量爲1之時,對此化合物之分子量 之比在0:7以上及1.3以下之範園内之化合物。 例如,以三羥曱基丙烷爲3價以上之醇,以丙烯酸爲不 飽和幾酸之時之架橋劑主成分可爲三羥甲基丙烷三丙烯酸 酯、三羥甲基丙烷二丙烯酸酯、三羥甲基丙烷丙烯酸酯單 (β -丙烯醯基氧基丙酸酯)等。又,例如,以甘油爲3價以 上之醇’以丙烯酸爲不飽和羧酸之時之架橋劑主成分可爲 甘油丙稀酸酿、甘油.二丙缔酸g旨等。以三經曱基乙燒爲3 價以上之醇,以丙烯酸爲不飽和羧酸之時之架橋劑主成分 可爲三經甲基乙貌三丙晞酸酯、三幾甲基乙燒二丙烯酸酯 等。以四羥曱基乙烷爲3價以上之醇,以丙烯酸爲不飽和 羧酸之時之架橋劑主成分可爲四羥甲基乙烷四丙烯酸酯、 四羥甲基乙烷三丙烯酸酯等。以四羥基乙烷爲3價以上之 醇’以丙晞酸爲不飽和羧酸之時之架橋劑主成分可爲四輕 基乙烷四丙烯酸酯、四羥基乙烷三丙烯酸酷等。以季戊四 醇爲3價以上之醇,以丙晞酸爲不飽和複酸之時之架橋劑 主成分可爲季戊四醇四丙錦酸酿、季戊四醇三丙晞酸醋等 -14- 本紙張尺度適用中國國家標準(CNS ) A4规格(210X297公釐) (請先閱讀背面之注意事項再,填寫本頁). " 4193 82 at _______ B7 Printed by Zhengong Consumer Cooperative, Central Bureau of the Ministry of Economic Affairs. 5. Description of invention (8) 20 weight. /. Above and below 40% by weight. In addition, although the higher the resin concentration in the absorbent body, the characteristics of the absorbent or the absorbent body of the present invention can be exhibited, but the water absorbent of the present invention can fully exert its properties regardless of the proportion of hydrophilic fibers in the absorbent body. performance. In addition, the properties of the water-absorbing agent are hardly affected by the structure of the absorbent body. When the proportion of the hydrophilic fibers in the absorbent body is small, an adhesive may be used to adhere the absorbent body (that is, the hydrophilic fibers). Subsequent to the hydrophilic fiber, the strength and shape retention of the absorbent body before or during use can be improved. Examples of the above-mentioned adhesive binder include thermally fused fibers such as polyethylene, polypropylene, ethylene-propylene copolymer, and poly-associated hydrocarbon fibers such as 1-butadiene-ethylene copolymer, and milky adhesive having adhesiveness. These adhesives may be used alone or in combination of two or more. The weight of hydrophilic fiber and adhesive binder is better in the range of 50/50 ~ 99/1, more preferably in the range of 70/30 ~ 95/5, and even more preferably in the range of 80/2 0 ~ 95 / Within the range of 5. The water-absorbing agent of the present invention uses a specific amount of a bridging agent with a specific composition. In the presence of the bridging agent and the dispersant, the hydrophilicity of the acrylic acid whose main component is neutralized by 50 mol% or more is not hydrophilic. Saturated monomers are polymerized in aqueous solution, the water content and particle size of the prepared water-absorbing agent precursor are adjusted to a specific range, and the manufacturing method of heating the water-absorbing agent precursor in the presence of a surface bridging agent is be made of. The main components of the hydrophilic unsaturated monomer in the present invention are acrylic acid and its neutralized product. In order to improve the water-absorbing properties of the water-absorbing agent, 50 mol% or more of acrylic acid is preferably neutralized with, for example, a metal salt, a qian · salt, or an amine salt. In addition, for the purpose of -11-this paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) I .------ 17 ^ " '装 — I Γ. (Please read the note on the back first Please fill in this page again)-Order 419382 A7 ___ ^ ____ B7 V. Description of the invention (9) Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shelley Consumer Cooperative, printed a step to improve the water absorption properties of the water absorbent, 65 mol% to 80 mol of acrylic. / 〇 It is better to be neutralized. The above-mentioned hydrophilic unsaturated monomer may contain a monomer having a propionic acid or higher if necessary. The monomer other than acrylic acid is not particularly limited, and specifically, it may be methacrylic acid, maleic acid, ethylene sulfonic acid, phenethyl sulfonic acid, 2- (meth) propanthine ethylsulfonic acid, 2- (Meth) propanyl propyl sulfonic acid and other anionic unsaturated monomers and their salts; propyl amine, propyl acrylamide, N-ethyl (meth) propyl amine, N'-propyl (Meth) acrylamide, N-isopropyl (meth) acrylamide, N, N-dimethyl (meth) acrylamide, 2-Ethyl (meth) acrylate, 2- Non-ionic such as propyl (meth) acrylate, methoxypolyethylene glycol (meth) propionate, polyethylene glycol (meth) acrylate, vinylpyridine, N-propenylpyrrolidine Hydrophilic unsaturated monomers; N, N-dimethylaminoethyl (meth) propionate, ν, N-diethylaminoethyl (fluorenyl) acrylate, N, N -Cationic surfactants such as diamidoaminopropyl (meth) acrylate, N, N-dimethylaminoethyl (meth) acrylate and its quaternary salts. When using these other unsaturated monomers, the amount is preferably 50 mol% or less relative to the total amount of acrylic acid and its neutrals as the main components. The bridging agent in the present invention is a trivalent or higher alcohol (hereinafter referred to as trivalent or higher) among unsaturated carboxylic acid esters including acrylates having plural functional groups (hereinafter referred to as multifunctional). An alcohol) and an unsaturated carboxylic acid esterification reaction or a trivalent or higher alcohol and an unsaturated carboxylic acid ester exchange reaction. However, at present, it is difficult to obtain all the hydrofluorenyl groups of the above-mentioned trivalent alcohols with high selectivity and high yields at low cost on an industrial scale, and the unsaturated groups are not included.-'I-. (Please read the back first Please note, also write this page) r Order-Γ -12- CNS) A4 specification (210X2.97 mm) Γ 419382 Α7 Β7 V. Description of the invention (10) Employees' cooperatives in the Central Standards Bureau of the Ministry of Economic Affairs printed acid printing Ester-bonded unsaturated carboxylic acid esters (ie, the desired unsaturated carboxylic acid esters). In addition, although the reaction conditions are different, if the above unsaturated carboxylic acid esters are synthesized on an industrial scale, a large number of high-boiling components containing the alcohol skeleton in the molecule will be generated in large quantities, replacing the desired unsaturated carboxylic acid. Acid ester. Therefore, in order to use industrially available unsaturated carboxylic acid esters, that is, unsaturated carboxylic acid esters containing the high boiling point component as a bridging agent, the hydrophilic unsaturated monomers are polymerized in an aqueous solution to obtain A super absorbent resin with high performance, and is dedicated to research. As a result, it was found that when the aqueous solution is polymerized with unsaturated carboxylic acid esters containing the high boiling point component, it is difficult to increase the diffusion absorption ratio of the water-absorbing agent, and it is also difficult to reduce the amount of water-soluble components. Therefore, in order to obtain a water-absorbent resin (that is, a water-absorbing agent) having excellent properties such as diffusion absorption rate and liquid diffusivity, and having a reduced amount of water-soluble components, research is being conducted. It was found that only in the presence of a dispersant, a bridging agent containing a specific amount of a high boiling point component within a specific range can obtain a water-absorbent agent having a significantly reduced water-soluble content and a superior diffusion absorption rate. That is, the bridging agent used in the present invention is composed of an esterified product of a trivalent or higher alcohol having an atomic number of 6 or less and an unsaturated carboxylic acid, and all the hydroxyl groups of the trivalent or higher alcohol are all When the molecular weight of the unsaturated carboxylic acid ester-forming compound is 1, the main component of the bridging agent whose ratio to the molecular weight of the compound is in the range of 0.7 or more and 1.3 or less, and the above-mentioned alcohol skeleton is contained in the molecule 2 It is composed of the above high boiling point components, and the weight ratio of the main component of the bridging agent to the high boiling point component is in the range of 75/2 5 to 99/1. The trivalent or higher alcohols that can be used in preparing the bridging agent of the present invention are not particularly limited, but glycerol, trimethylolethane, tetramethylolethane, and trihydroxyol are preferred (please read the precautions on the back first) (Fill in this page) This paper size is in accordance with Chinese National Standard (CNS) A4 (2I0X297mm) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs f 4193 82 A7 B7 V. Description of the invention (11) Jiyiyuan, pentaerythritol, etc. Among them, methyl terephthalate is particularly preferred. Further, the unsaturated carboxylic acid usable in the preparation of the bridging agent may be a hydrophilic unsaturated monomer having the above carboxyl group, and acrylic acid is particularly preferred. As described above, the main component of the bridging agent may be all the hydrogens of the polyfunctional unsaturated acetic acid esters using the above-mentioned trivalent or higher alcohol as the alcohol component and the unsaturated polyacid as the acid component. When the molecular weight of the compound in which the oxy group and the unsaturated carboxylic acid form an ester bond is 1, the compound having a molecular weight ratio of this compound in the range of 0: 7 or more and 1.3 or less. For example, the main component of the bridging agent when trihydroxymethylpropane is a trivalent or higher alcohol and acrylic acid is an unsaturated polyacid may be trimethylolpropane triacrylate, trimethylolpropane diacrylate, or trimethylolpropane diacrylate. Methylolpropane acrylate mono (β-propenyloxypropionate) and the like. Further, for example, when glycerin is a trivalent or higher alcohol 'and acrylic acid is an unsaturated carboxylic acid, the main component of the bridging agent may be glycerol-acrylic acid, glycerol, di-acrylic acid, and the like. The main component of the bridging agent when trimethylsulfonyl ethyl alcohol is used as a trivalent or higher alcohol, and when acrylic acid is an unsaturated carboxylic acid, may be trimethyl methyl ethyl tripropionate and trichimethyl ethyl diacetate. Esters, etc. The main component of the bridging agent when tetrahydroxymethylethane is a trivalent or higher alcohol and acrylic acid is an unsaturated carboxylic acid may be tetramethylolethane tetraacrylate, tetramethylolethane triacrylate, etc. . The main component of the bridging agent when tetrahydroxyethane is a trivalent or higher alcohol 'and propionic acid is an unsaturated carboxylic acid may be tetramethylethane tetraacrylate, tetrahydroxyethane triacrylate, or the like. Pentaerythritol is a trivalent or higher alcohol, and the main component of bridging agent when propionic acid is an unsaturated polyacid can be pentaerythritol tetrapropionic acid, pentaerythritol tripropionate, etc. -14- This paper applies to China Standard (CNS) A4 specification (210X297 mm) (Please read the notes on the back before filling in this page)
A7 B7 4193 82 五、發明説明(l2 ) 含有上述架橋劑之高沸點成分之構造複雜,爲在合成架 橋劑主成分之時做爲副產物得到的化合物。例如,以三經 甲基丙烷爲3價以上之醇,以丙烯酸爲不飽和羧酸之時之 高沸點成分可爲在分子中含有三羥甲基丙烷骨架2個以上 之縮合物,例如可爲三羥甲基丙烷三丙烯酸酯與三羥甲基 丙;fe二丙烯酸酯之加成反應所生成之化合物,三獲甲基丙 烷二丙烯酸酯之二量體、三羥曱基丙烷二丙烯酸酯與三羥 甲基丙烷單丙烯酸酯之加成應所生成之化合物等。 上述架橋劑中之架橋劑主成分與高沸點成分之重量比必 須在75/25〜99/1之範圍内,較佳在80/20〜90/10之範園 内。架橋劑中之架橋劑主成分與高沸點成分之重量比比 75/25小之時,即,架橋劑主成分佔架橋劑主成分及高沸 點成分之合計量之比例小於7 5重量%(即高沸點成分之比 例超過25重量%)時,即使用本發明之分散劑,亦不能得 到擴散吸收倍率或液擴散性優良且水可溶成分量降低之吸 水劑’故不宜 '又,架橋劑主成分與高沸點成分之重量比 比99/1之架橋劑,即,架橋劑主成分佔架橋劑主成分及高 沸點成分之合計量之比例大於99重量%(即高沸點成分之 比例低於1重量%)之架橋劑在工業上不易取得,故不宜。 又’即使用架橋劑之主成分之比例超過99重量。/。之架橋劑 ’與架橋劑主成分之比例在7 5重量。/。〜9 9重量。/。之情形相 比’亦不具有顯著的效果。 架橋劑之用量相對於親水性不飽和單體在〇. 〇 5莫耳%以 上及0.5莫耳%以下之範圍’較佳在〇〇7莫耳%以上及〇2 -15 - 本紙浪尺度適用t國國家標準(CNS )八4规^格(210X297公釐) 經濟部中央標準局員工消費合作社印製 4193 82 at -------B7 五、發明説明(l3 ) 莫耳%以下之範園。架橋劑之用量比0 5莫耳%少及比0 5 莫耳%多之時,吸水劑之擴散吸收倍率會降低,水可溶成 分量會增加,故不宜。又,架橋劑之用量可根據碳原子數 ^以下之3價以上之醇爲醇成分且以不飽和羧酸爲酸成分之 夕έ旎不飽和幾酸酯類中該3價以上之醇之所有氫氧基與 該不飽和羧酸形成酯鍵結之化合物(即架橋劑主成分)之分 子量計算出。 本發明中在水溶液聚合時所用之分散劑較佳爲與架橋劑 可互;4且可均勻地溶解於水中之化合物,且以一般工業上 可取得者爲佳。上述分散劑可爲例如山梨糖醇酐脂肪酸酯 、聚氧乙烯山梨糖醇酐脂肪酸酯、聚甘油脂肪酸酯、聚氧 乙烯烷醚、聚氧乙缔烷基苯酚醚、聚氧乙烯醯醚、蔗糖脂 肪酸酯等非離子性界面活性劑;高級醇硫酸酯鹽、烷基茶 磺酸鹽、烷基聚氧乙缔硫酸鹽、二烷基磺基琥珀酸鹽等陰 離性界面活性劑;烷基第四銨鹽、烷基胺鹽等陽離予性界 面活性劑’燒基甜菜臉、卵鱗脂等兩性界面活性劑;具有 羧基之親油性聚合物、部分岂化聚乙晞醇、甲基纖維素、 竣基甲基纖維素、羥基乙基纖維素等高分子化合物。上述 分散劑中,水溶性界面活性劑及水分散性界面活性劑爲較 佳者,親水性油性餘量(HLB : hydrophilic-lipophilic balance)在1〇以上之非離子性界面活性劑爲最佳者。 分散劑之用量相對於架橋劑較佳在1重量%〜100重量% 之範圍内,更佳在5重量%〜50重量%之範圍内。又,分 散劑之用量相對於從自親水性不飽和單體之吸水劑前驅體 -16- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先聞讀背面之注意事項再**:寫本頁)A7 B7 4193 82 V. Description of the invention (l2) The structure containing the high boiling point component of the bridging agent is complicated, and it is a compound obtained as a by-product when the main component of the bridging agent is synthesized. For example, the tribomethyl alcohol is a trivalent or more alcohol, and the high boiling point component when acrylic acid is an unsaturated carboxylic acid may be a condensate containing two or more trimethylolpropane skeletons in the molecule. Trimethylolpropane triacrylate and trimethylolpropane; compounds produced by the addition reaction of fe diacrylate, trimethylolpropane diacrylate ditrimer, trihydroxymethylpropane diacrylate and The addition of trimethylolpropane monoacrylate should be the compound produced. The weight ratio of the main component of the bridging agent to the high boiling point component in the bridging agent must be in the range of 75/25 to 99/1, and preferably in the range of 80/20 to 90/10. When the weight ratio of the main component of the bridging agent to the high boiling point component in the bridging agent is less than 75/25, that is, the proportion of the main component of the bridging agent to the total amount of the main component of the bridging agent and the high boiling point component is less than 75% by weight (ie, high When the proportion of the boiling point component exceeds 25% by weight), even if the dispersant of the present invention is used, it is not possible to obtain a water-absorbing agent which is excellent in diffusion absorption rate or liquid diffusibility and has a reduced amount of water-soluble components. A bridging agent with a weight ratio of 99/1 to the high boiling point component, that is, the ratio of the main component of the bridging agent to the total amount of the main component of the bridging agent and the high boiling point component is greater than 99% by weight (that is, the proportion of the high boiling point component is less than 1% by weight) The bridging agent is not easy to obtain in industry, so it is not suitable. Also, that is, the proportion of the main component of the bridging agent is more than 99% by weight. /. The ratio of the bridging agent ′ to the main component of the bridging agent is 75 weight. /. ~ 9 9 weight. /. Compared with the situation, it also has no significant effect. The amount of the bridging agent is in the range of 0.05 mol% or more and 0.5 mol% or less relative to the hydrophilic unsaturated monomer. 'Preferably 0.07 mol% or more and 〇2 -15. National Standards of China (CNS) Regulation 8 (210X297mm) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 4193 82 at ------- B7 V. Description of Invention (l3) Fan Yuan. When the amount of the bridging agent is less than 0.5 mol% and more than 0.5 mol%, the diffusion absorption ratio of the water absorbing agent will be reduced, and the water soluble content will increase, so it is not suitable. In addition, the amount of the bridging agent may be based on all of the trivalent or higher alcohols in the unsaturated tribasic acid esters of the unsaturated tribasic acid esters with an unsaturated carboxylic acid as the acid component. The molecular weight of the compound whose hydroxyl group forms an ester bond with the unsaturated carboxylic acid (ie, the main component of the bridging agent) is calculated. The dispersant used in the polymerization of the aqueous solution in the present invention is preferably a compound which can interact with the bridging agent; 4 and a compound which can be uniformly dissolved in water, and is generally available in the industry. The dispersant may be, for example, a sorbitan fatty acid ester, a polyoxyethylene sorbitan fatty acid ester, a polyglycerol fatty acid ester, a polyoxyethylene alkyl ether, a polyoxyethylene alkylphenol ether, or a polyoxyethylene fluorene. Ethers, sucrose fatty acid esters and other nonionic surfactants; higher alcohol sulfates, alkyl tea sulfonates, alkyl polyoxyethylene sulfates, dialkyl sulfosuccinates and other anionic interface activities Agents; cation-active surfactants such as alkyl fourth ammonium salts, alkylamine salts, and other amphoteric surfactants such as beet-based beet face and egg scale lipids; lipophilic polymers with carboxyl groups and partially fluorinated polyethylene glycols Polymer compounds such as alcohols, methyl cellulose, cumyl methyl cellulose, and hydroxyethyl cellulose. Among the above-mentioned dispersants, a water-soluble surfactant and a water-dispersible surfactant are preferred, and a non-ionic surfactant with a hydrophilic-lipophilic balance (HLB: 10 or more) is preferred. . The amount of the dispersant is preferably within a range of 1% to 100% by weight, and more preferably within a range of 5% to 50% by weight, relative to the bridging agent. In addition, the amount of dispersant is relative to the water-absorbent precursor from self-hydrophilic unsaturated monomer -16- This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) Again **: Write this page)
82 4 82 4 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明(14 ) 100單位重量較隹在0.005單位重量以上及0.5單位重量以 下。 水溶液聚合時之分散劑之混合方法(添加方法)並不特別 限定。例如,可在直接混合架橋劑及分散劑後,將此混合 液與親水性不飽和單體或其水溶液混合。或者,亦可在使 架橋劑與分散劑或分散劑之水溶液混合之後,將此混合液 與親水性不飽和單體或其水溶液混合。或者,亦可在使架 橋劑、分散劑與親水性不飽和單體或其水溶液之一部分混 合之後,將此混合液與親水性不飽和單體或其水溶液之剩 下部分混合。或者,亦可在使架橋劑、分散劑或分散劑之 水溶液與親水性不飽和單體或其水溶液之一部分混合之後 ,將此混合液與親水性不飽和單體或其水溶液之剩餘部分 混合。在上述混合方法中,在使架橋劑、分散劍與親水性 不飽和單體或其水溶液之一部分混合之後,將此混合液與 親水性不飽和單體或其水溶液之剩下部分混合之方法較佳 。又,在使架橋劑、分散劑與做爲親水性不飽和單體之丙 晞酸混合之後,將此混合液與親水性不飽和單體或其水溶 液之剩下部分(即丙烯酸之中和物等)混合之方法更佳。 在架橋劑及分散劑之存在下使親水性不飽和單體進行水 溶液聚合時,該水溶液中之親水性不飽和單體之濃度較佳 在2 5重量%以上及飽和濃度之重量。/。以下,更佳在30重量 %以上及4 5重量%以下。 又,上述聚合反應中聚合開始時,可使用例如過硫酸鉀 、過硫酸按、過硫酸鈉、t - 丁基氫氧過氧化物、過氧化氫 -17- 本紙張尺度逍用中國國家標準(CNS > A4規格(210X297公釐) (請先閱讀背面之注意事項再^:寫本頁)82 4 82 4 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (14) The unit weight of 100 is more than 0.005 unit weight and less than 0.5 unit weight. The mixing method (addition method) of the dispersant at the time of aqueous solution polymerization is not particularly limited. For example, after the bridging agent and the dispersant are directly mixed, the mixed solution may be mixed with a hydrophilic unsaturated monomer or an aqueous solution thereof. Alternatively, after the bridging agent is mixed with a dispersant or an aqueous solution of a dispersant, the mixed solution may be mixed with a hydrophilic unsaturated monomer or an aqueous solution thereof. Alternatively, after the bridging agent and the dispersant are mixed with the hydrophilic unsaturated monomer or a part of its aqueous solution, the mixed solution may be mixed with the remaining part of the hydrophilic unsaturated monomer or its aqueous solution. Alternatively, after the aqueous solution of the bridging agent, dispersant, or dispersant is mixed with the hydrophilic unsaturated monomer or a part of the aqueous solution, the mixed solution may be mixed with the remainder of the hydrophilic unsaturated monomer or the aqueous solution thereof. In the above mixing method, after the bridging agent, the dispersing sword and a portion of the hydrophilic unsaturated monomer or an aqueous solution thereof are mixed, the method of mixing the mixed solution with the remaining portion of the hydrophilic unsaturated monomer or its aqueous solution is compared. good. After mixing the bridging agent and the dispersant with the propionic acid as the hydrophilic unsaturated monomer, the mixed solution is mixed with the hydrophilic unsaturated monomer or the remainder of the aqueous solution (ie, the acrylic acid neutralizer). Etc.) The mixing method is better. When the hydrophilic unsaturated monomer is subjected to aqueous solution polymerization in the presence of a bridging agent and a dispersant, the concentration of the hydrophilic unsaturated monomer in the aqueous solution is preferably 25% by weight or more and a saturated concentration by weight. /. Hereinafter, it is more preferably 30% by weight or more and 45% by weight or less. In addition, at the beginning of the polymerization in the above-mentioned polymerization reaction, for example, potassium persulfate, persulfate, sodium persulfate, t-butyl hydroperoxide, hydrogen peroxide can be used. CNS > A4 size (210X297 mm) (Please read the precautions on the back before ^: write this page)
4 193 8〇 Q Α7 __ Β7 五、發明説明(15 ) 經濟部中央標準局員工消費合作社印製 、2,2-偶氮(2_脒基丙烷)二鹽酸鹽等自由基聚合開始劑, 或疋紫外線或電子線等活化能線。又,使用氧化性自由基 聚合開始劑之時,亦可併用亞硫酸鈉、亞硫酸氫鈉、硫酸 鐵、L-抗壞血酸等還原劑進行氧化還原(red〇x)聚合。此 等聚合開始劑之用量較佳在0 · 00 1莫耳%〜2莫耳%之範圍 内,更佳在0.01莫耳%〜〇_5莫耳%之範園内。 又,本發明之吸水劑係將上述水溶液聚合所得之吸水劑 前驅體進行分級等之作業,以將之調整到含水率爲1〇%以 下、平均粒捏在200μπι〜600μιη之範圍内,且粒徑在 106μιη以下之粒子之比例在10重量❶/〇以下之後,對該吸水 劑前驅體在表面架橋劑之存在下進行加熱處理而得。上述 吸水劑前驅體可造粒成所要形狀,例如可爲球狀、鱗片狀 、不定形破碎狀、顆粒狀等種種形狀。再者,吸水劑前驅 體可爲1次粒次,亦可爲2次粒子之造粒體。又,含水率高 於10%時、平均粒徑在2〇〇μπι〜6〇〇μιη之範園外時、或 粒徑在106 μιη以下之粒予之比例超過1 〇重量%時,由於無 法得到擴散吸收倍率等性能優越之吸水劑,故不宜。 本發明中之表面架橋劑宜爲可與幾基反應之化合物或常 用於該用途之習知之表面架橋劑。上述表面架橋劑可爲例 如乙二醇、二乙二醇、丙二醇、三乙二醇、四乙二醇、聚 乙二醇、丙二醇、1,3 -丙二醇、二丙二醇、2,2,4-三甲基 -1,3 -戊二醇、聚丙二醇、甘油、聚甘油、2 -丁晞_1,4-二醇、1,4-丁二醇、1,5-丁二醇、1,6-己二醇、1,2_ 環 己燒二甲醇、1,2 -環己醇、三經甲基丙燒、二乙醇胺、三 -18 - 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X297公釐) (請先聞讀背面之注意事項再填寫本頁)4 193 8〇Q Α7 __ Β7 V. Description of the invention (15) Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs, and a radical polymerization initiator such as 2,2-azo (2-amidinopropane) dihydrochloride, Or active energy rays such as ultraviolet rays or electron rays. When an oxidative radical polymerization initiator is used, redox polymerization may be carried out by using a reducing agent such as sodium sulfite, sodium bisulfite, iron sulfate, or L-ascorbic acid in combination. The amount of these polymerization initiators is preferably in the range of from 0.001 mol% to 2 mol%, and more preferably in the range of 0.01 mol% to 0-5 mol%. In addition, the water-absorbing agent of the present invention is an operation such as classifying a water-absorbing agent precursor obtained by polymerizing the above-mentioned aqueous solution to adjust the water content to 10% or less, and the average particle size is within a range of 200 μm to 600 μm. After the ratio of particles having a diameter of 106 μm or less is 10 weight ❶ / 0 or less, the water-absorbing agent precursor is obtained by heating treatment in the presence of a surface bridging agent. The above-mentioned water-absorbing agent precursor can be granulated into a desired shape, for example, various shapes such as a spherical shape, a scaly shape, an irregularly broken shape, and a granular shape. In addition, the precursor of the water-absorbing agent may be a granule of primary particles or a granule of secondary particles. In addition, when the moisture content is higher than 10%, when the average particle diameter is outside the range of 200 μm to 600 μm, or when the proportion of particles with a particle diameter of 106 μm or less exceeds 10% by weight, It is not suitable to obtain a water-absorbing agent with excellent performance such as diffusion absorption rate. The surface bridging agent in the present invention is preferably a compound capable of reacting with several groups or a conventional surface bridging agent commonly used for this purpose. The surface bridging agent may be, for example, ethylene glycol, diethylene glycol, propylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, propylene glycol, 1,3-propanediol, dipropylene glycol, 2,2,4- Trimethyl-1,3-pentanediol, polypropylene glycol, glycerol, polyglycerol, 2-butane-1,4-diol, 1,4-butanediol, 1,5-butanediol, 1, 6-Hexanediol, 1,2-cyclohexyl dimethanol, 1,2-cyclohexanol, tri-methyl propylene, diethanolamine, tri-18-This paper size applies to Chinese National Standard (CNS) A4 specifications 210X297 mm) (Please read the notes on the back before filling in this page)
訂 419382 A7 __B7 五、發明説明(l6 ) 乙醇胺、聚氧丙締、氧乙晞—氧丙烯嵌段共聚物、季戊四 醇、山梨糖醇等2價以上之醇化合物;乙二醇二縮水甘油 酸、聚乙一醇—縮水甘油酸、甘油聚縮水甘油越、二甘油 聚縮水甘油醚、聚甘油聚縮水甘油醚、丙二醇二縮水甘油 醚、聚丙二醇二縮水甘油醚、糖醇等環氧化合物;乙二胺 、二乙三胺、三乙四胺、四乙五胺、五乙六胺、聚乙亞胺 等多價胺化合物;2,4-甲笨二異氰酸酯、六亞甲基二異氰 酸酯等多價異氰酸酯化物;1,2—亞乙基雙噁唑啉等多價噁 峻p林化合物;1,3 -二氧雜戊環—2 -酮、4 -甲基-1,3 -二氧 雜戊環-2-酮、4,5-二甲基-1,3-二氧雜戊環_2 一酮、 4,4-二甲基-1,3-二氧雜戊環-2-酮、4-乙基-i,3_二氧 雜戊環-2-酮、4-羥甲基-1,3-二氧雜戊環—2-酮、:l,3_ 二噁烷-2-酮、4-甲基-1,3-二噁烷-2-酮、4,6-二甲基-1,3-二噁烷-2-酮、I,3-二氧丙_2 —酮等烷基碳酸酯化合 物;環氧氯丙烷、環氧溴丙烷、α-甲基環氧氯丙烷等画素 環氧化合物;γ-環丙氧基丙基三甲氧基;5夕燒、γ—胺基丙基 一甲氧基珍坑等矽'貌偶合劑;辞、躬、錢 '銘、鐵、錯等 之氫氧化物或氣化物等多價金屬化合物等。此等表面架橋 劑可單獨使用亦可2種以上混合使用。 特別地,表面架橋劑係混合溶解度因子(83?値)互異之第 1表面架橋劑及第2表面架橋劑而成之時,可得到擴散吸收 倍率更佳之吸水劑。又,上述溶解度因子爲一般常用於表 示化合物之極性之因子之値。在本發明中,聚合物手册第 3 版(WILEY INTERSCIENCE 公司發行)527 頁〜539 頁 -19 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐)Order 419382 A7 __B7 V. Description of the invention (16) Ethanolamine, polyoxypropylene, oxyacetamyl-oxypropylene block copolymer, pentaerythritol, sorbitol and other divalent alcohol compounds such as ethylene glycol diglycidyl acid, Polyethylene glycol-glycidic acid, glycerol polyglycidol, diglycerol polyglycidyl ether, polyglycerol polyglycidyl ether, propylene glycol diglycidyl ether, polypropylene glycol diglycidyl ether, sugar alcohol and other epoxy compounds; Polyvalent amine compounds such as amine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, and polyethyleneimine; polyvalent compounds such as 2,4-methylbenzyl diisocyanate and hexamethylene diisocyanate Isocyanates; Polyvalent compounds such as ethylene dioxazoline; 1,3-dioxolane-2-one; 4-methyl-1,3-dioxolane Cyclo-2-one, 4,5-dimethyl-1,3-dioxolane_2 monoone, 4,4-dimethyl-1,3-dioxolane-2-one, 4-ethyl-i, 3_dioxolane-2-one, 4-hydroxymethyl-1,3-dioxolane-2-one ,: 1,3_dioxane-2-one , 4-methyl-1,3-dioxan-2-one, 4,6-dimethyl-1,3-di Alkyl carbonate compounds such as oxan-2-one, 1,3-dioxopropan-2-one; epoxy epoxy compounds such as epichlorohydrin, epibromopropane, and α-methyl epichloropropane; γ -Cyclopropoxypropyltrimethoxy; 5'-yaki, γ-aminopropyl-methoxy phenyl pits and other silicon 'look coupling agents; Ci, bow, Qian'ming, iron, wrong, etc. hydroxide Or gaseous compounds such as polyvalent metals. These surface bridging agents may be used alone or in combination of two or more. In particular, when the surface bridging agent is a mixture of the first surface bridging agent and the second surface bridging agent with different solubility factors (83? 値), a water-absorbing agent having a better diffusion absorption rate can be obtained. In addition, the above-mentioned solubility factor is one of factors commonly used to indicate the polarity of a compound. In the present invention, the Polymer Handbook 3rd Edition (issued by WILEY INTERSCIENCE) Pages 527 to 539 -19-This paper size applies to China National Standard (CNS) A4 (210X297 mm)
經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁)Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (Please read the precautions on the back before filling this page)
4193 82 at __^__B7 五、發明説明(Π ) 所記載之溶媒之溶解度因予S(cal/cin3)i/2之値.適用於上述 溶解度因子。又’關於上述頁中所未記載之溶媒之溶解度 因子’適用將該聚合物手册之第525頁所記載之Hoy之凝 聚能常數代入其第524頁之Small之公式中而導出之値。 上述第1表面架橋劑較佳爲可與羧基反應且溶解度因子 在12.5(cal/cm3)i/2以上的化合物,更佳爲 13.0(cal/cm3)1/2以上之化合物。上述第1表面架橋劑可 爲例如乙二醇、丙二醇、甘油、季戊四醇、山梨糖醇、碳 酸乙烯酯(1,3-二氧雜戊環—2 —酮)、碳酸丙烯酯(4-曱基-1,3-二氧雜戊環-2-酮)等,但不限於此等化合物。此等第 1表面架橋劑可單獨使用亦可混合2種以上使用。 經濟部中央標準局員工消費合作社印製 上述第2表面架橋劑較佳爲可與羧基反應且溶解度因子 在12.5(cal/cm3)l/2以下的化合物,更佳爲在 9.5〇31/(:1113)1/2〜12.0(〇&1/(;1113)1/2之範園内之化合物。 上述第2表面架橋劑可爲例如乙二醇、三乙二醇、四乙二 醇、二丙二醇、三丙二醇、1,3-丁二醇、1,4—丁二醇、 1,5-戊二醇、2,4—戊二醇、1,6-己二醇、2,5-己二醇、 二乙醇胺、三乙醇胺、乙二醇二縮水甘油醚、聚乙二醇二 縮水甘油醚、甘油聚縮水甘油醚、二甘油聚縮水甘油酸、 聚甘油聚縮水甘油醚、丙二醇二縮水甘油醚、聚丙二醇二 縮水甘油醚、乙二胺、二乙三胺、三乙四胺、2,4-甲苯二 異氰酸酯、六亞甲基二異氰酸酯、4,5 -二甲基-1,3 -二氧 雜戊環-2-酮、環氧氣丙烷 '環氧溴丙烷等’但不限於此 等化合物。此等第2表面架橋劑可單獨使用亦可混合2種以 -20- 本紙張尺度適用中國國家標準(CNS ) A4規格(2 i 0 X 297公釐) 經濟部中央標準局員工消費合作社印製 419382 ----~__ 五、發明説明(ls ) 上使用。 ,本發明中之表面架橋劑以混合從上述第丨表面架橋劑之 群所選出之1種或2種以上之化合物及從上述第2表面架橋 劑〈群所選出之1種或2種以上之化合物而使用者爲較佳。 表面架橋劑之用量視所用化合物及其组合而有所不同, 相對於吸水劑前驅體之固形分1〇〇單位重量,以〇 〇〇1單 位重量〜10單位重量之範圍内較佳,0.01單位重量〜5單 位重量範園内更佳。又,混合韌表面架橋劑與第2表面架 橋劑使用之時,相對於吸水劑前驅體之固形分100單位重 量,第1表面架橋劑之用量爲0‘01單位重量〜5單位重量、 第2表面架橋劑之用量爲0001單位重量〜J單位重量之範 園内者較佳,第1表面架橋劑之用量爲〇1單位重量〜2單 位重量、第2表面架橋劑之用量爲0.005單位重量〜〇 5單 位重量之範圍内者更佳。使用上述表面架橋劑可使吸水劑 前驅體即吸水性樹脂之表面附近之架橋密度較其内部高。 若表面架橋劑之用量超過10單位重量,則不只是不經濟, 表面架橋劑之量會多於在吸水劑中形成最適之架橋構造時 所^之里,故不宜。又,表面架橋劑之用量不到^.❹^單 位重量之時,在吸水劑之擴散吸收倍率等性能之改良上難 以得到改良功效,故不宜。 混合吸水劑前驅體與表面架橋劑之時,較佳以水爲溶媒 。水之用量視吸水劑前驅體之種類、粒徑、含水率等而有 所不同,相對於吸水劑前驅體之固形分1〇〇單位重量,較 佳在0以上及20單位重量以上,更佳在〇5單位重量〜 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再/填寫本頁〕4193 82 at __ ^ __ B7 V. The solubility of the solvent described in the description of the invention (Π) is given by S (cal / cin3) i / 2. It is applicable to the above solubility factor. In addition, the "solubility factor of a solvent not described in the above page" can be derived by substituting Hoy's agglomeration energy constant described in page 525 of the polymer handbook into the formula of Small on page 524 thereof. The first surface bridging agent is preferably a compound capable of reacting with a carboxyl group and having a solubility factor of 12.5 (cal / cm3) i / 2 or more, and more preferably a compound of 13.0 (cal / cm3) 1/2 or more. The first surface bridging agent may be, for example, ethylene glycol, propylene glycol, glycerol, pentaerythritol, sorbitol, ethylene carbonate (1,3-dioxolane-2-one), and propylene carbonate (4-fluorenyl group). -1,3-dioxolane-2-one) and the like, but are not limited to these compounds. These first surface bridging agents can be used alone or in combination of two or more. The above-mentioned second surface bridging agent printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs is preferably a compound that can react with a carboxyl group and has a solubility factor of 12.5 (cal / cm3) l / 2 or less, and more preferably 9.5031 / (: 1113) 1/2 ~ 12.0 (〇 & 1 / (; 1113) 1/2. Compounds in the range of gardens. The second surface bridging agent may be, for example, ethylene glycol, triethylene glycol, tetraethylene glycol, diethylene glycol. Propylene glycol, tripropylene glycol, 1,3-butanediol, 1,4-butanediol, 1,5-pentanediol, 2,4-pentanediol, 1,6-hexanediol, 2,5-hexane Glycol, diethanolamine, triethanolamine, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, glycerol polyglycidyl ether, diglycerol polyglycidyl acid, polyglycerol polyglycidyl ether, propylene glycol diglycidyl ether Ether, polypropylene glycol diglycidyl ether, ethylenediamine, diethylenetriamine, triethylenetetramine, 2,4-toluene diisocyanate, hexamethylene diisocyanate, 4,5-dimethyl-1,3- Dioxolane-2-one, epoxy propane, 'epoxybromopropane, etc.' but not limited to these compounds. These second surface bridging agents can be used alone or in a mixture of two kinds. The paper size applies the Chinese National Standard (CNS) A4 specification (2 i 0 X 297 mm). Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. The surface bridging agent in the above is used by mixing one or more compounds selected from the above-mentioned surface bridging agent group and one or more compounds selected from the above-mentioned second surface bridging agent group The amount of surface bridging agent varies depending on the compound used and its combination, relative to the solid content of the precursor of the water-absorbing agent, 100 unit weight, in the range of 001 unit weight to 10 unit weight. Preferably, 0.01 unit weight to 5 unit weight is better in the range. In addition, when the tough surface bridging agent and the second surface bridging agent are used, the solid content of the water absorbing agent precursor is 100 unit weight, and the first surface bridging agent is used. The dosage is from 0'01 unit weight to 5 unit weight. The amount of the second surface bridging agent is preferably from 0001 unit weight to J unit weight. The amount of the first surface bridging agent is 0.001 unit weight to 2 units. The amount of the second surface bridging agent is preferably in the range of 0.005 unit weight to 0.05 unit weight. The use of the above surface bridging agent can make the density of the bridging agent near the surface of the water-absorbent precursor, that is, the water-absorbing resin higher than the inside If the amount of surface bridging agent exceeds 10 unit weights, it is not only uneconomical, the amount of surface bridging agent will be more than that used to form the optimal bridging structure in the water absorbent, so it is not suitable. Also, the surface bridging agent is not suitable. When the amount is less than ^ .❹ ^ per unit weight, it is difficult to obtain improved effects on the performance of the water absorption agent such as the diffusion absorption rate, so it is not suitable. When mixing the water absorbing agent precursor and surface bridging agent, it is preferable to use water as the solvent. . The amount of water varies depending on the type, particle size, and water content of the water-absorbent precursor. It is 100 units by weight, preferably 0 or more and 20 units by weight, and more preferably In unit weight of 〇5 ~ This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before / fill in this page)
4193 82 一丨 — 五、發明説明(l9 ) 單位重量之範圍内。 又’混合吸水劑前驅體與表面架橋劑之時,可視需要用 親水性有機溶媒做爲溶媒。上述親水性有機溶媒可爲例如 曱醇' 乙醇、n_丙醇、異丙醇、n_丁醇、異丁醇、t_丁醇 等低級醇類;丙酮等酮類;二噁烷、四氫吱喃等醚類; N,N-二甲基甲醯胺等胺類;二甲基亞颯等亞碱類等。親 水性有機溶媒之用量視吸水劑前驅體之種類、粒徑 '含水 率等而有所不同,相對於吸水劑前驅體之固形分丨〇 〇單位 重里’較佳爲20單位重量以下,更佳在〇.1單位重量〜 單位童量之範圍内。 在混合吸水劑前驅體與表面架橋劑之時,可例如將吸水 劑前驅體分散於上述親水性有機溶媒中後,再混合表面架 橋劑’但混合方法並不特別受限。種種混合方法中,將視 須要溶解於水及/或親水性有機溶媒中之表面架橋劑直接 、噴霧或滴下混合於吸水劑前驅體之方法較佳。又,用水 混合之時,可在水中使不溶性微粒子狀粉體或界面活性劑 等共存。 混合吸水劑前驅體與表面架橋劑時所用之混合裝置較佳 爲具有大混合力者,以使二者均勻且確實地混合。上述混 合裝置宜爲例如圓筒形混合機、雙重器壁圓錐形混合機、 V字形混合機、螺旋葉片式混合機、螺桿式混合機、流動 式爐旋轉盤式混合機、氣流型混合機、雙腕式捏和機、内 部混合機、粉碎式捏和機、迴轉式混合機、螺桿式押出 等。 _____ -22- 本紙張尺度適用中國國家標準(CNS ) A4規格^10X297公釐) " ------ 請 kj 聞4193 82 I 丨 — 5. Description of the invention (l9) Within the range of unit weight. When mixing the water-absorbing agent precursor and the surface bridging agent, a hydrophilic organic solvent may be used as the solvent as required. The hydrophilic organic solvent may be, for example, lower alcohols such as methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, and t-butanol; ketones such as acetone; dioxane, tetrakis Ethers such as hydrogen squeaking; amines such as N, N-dimethylformamide; subbases such as dimethylsulfine and the like. The amount of the hydrophilic organic solvent varies depending on the type and particle size of the water-absorbing agent precursor, and the solid content of the water-absorbing agent precursor is preferably 20 unit weight or less, more preferably Within the range of 0.1 unit weight to unit child amount. When mixing the water-absorbing agent precursor and the surface bridging agent, for example, the water-absorbing agent precursor may be dispersed in the above-mentioned hydrophilic organic solvent, and then the surface bridging agent 'may be mixed, but the mixing method is not particularly limited. Among the various mixing methods, the method of directly mixing, spraying or dropping the surface bridging agent, which needs to be dissolved in water and / or hydrophilic organic solvent, into the water-absorbing agent precursor is preferred. When mixed with water, insoluble fine particles or a surfactant can be coexisted in water. The mixing device used when mixing the water-absorbing agent precursor and the surface bridging agent is preferably a large mixing force, so that the two are evenly and surely mixed. The above-mentioned mixing device is preferably, for example, a cylindrical mixer, a double-walled cone mixer, a V-shaped mixer, a spiral blade mixer, a screw mixer, a flow furnace rotary disc mixer, an airflow mixer, Double wrist kneader, internal mixer, pulverizer, rotary mixer, screw extruder, etc. _____ -22- This paper size applies to Chinese National Standard (CNS) A4 size ^ 10X297 mm) " ------ Please kj
面 之 注Note
II
經濟部中央標準局負工消費合作社印製 4j9382 a7 -- B7 五、發明説明(2〇 ) 混合吸水劑前驅體與表面架橋劑之後,進行加熱處理, 使吸水劑前驅體之表面附近架橋。上述加熱處理之溫度視 .所用之表面架橋劑而不同,但較佳爲8 〇 °C以上及2 5 〇 °C以 下’更佳爲1203C以上及230°C以下。又,組合使用第1表 面架橋劑及第2表面架橋劑之時,較佳爲! 6 〇 以上。處 理溫度不到8 0 °C (组合使用第1及第2表面架橋劑之時不到 160 C)之時’不會形成均勻的架橋構造,因而無法得到擴 散吸收倍率等性能優越的吸水劑,故不宜。又,加熱處理 須花費時間,故引起生產性的降低。處理溫度超過2 5 〇。匚 時’會引起吸水劑前驅體之劣化’因而降低吸水劑之性能 ’故不宜。 上述加熱處理可用一般之乾燥機或加熱爐進行。上述乾 燥機可爲例如溝型混合乾燥機、旋轉式乾燥機、盤式乾燥 機、流.動層乾燥機、氣流式乾燥機、·紅外線乾燥機等。 上述製造方法所製得之吸水劑在吸收開始起60分鐘後之 擴散吸收倍率爲25g/g以上,水可溶成分量且在〇以上及7 重量%以下。因此,上述吸水劑具有上述之優異吸水特性 。本發明中之吸水劑具有非常優異之擴散吸收倍率等性能 之原因並不確定,但據推測,應是在水溶液聚合時使用特 定量之高滞點成分控制於特定範園内之架橋劑,且用分散 劑使該南彿點成分均勻地分散於反應系統中,使受到高沸 點成分阻礙之架橋劑主成分本來的架橋能力發揮到最大, 且時亦有效率地進行高沸點成分之架橋反應,藉此使水可 溶成分量大幅降低的結果。 -23 - 本紙張尺度適用中國國家標隼(CNS ) A4規格(21〇χ297公釐) "• - , {請先聞讀背面之注意事項再4(寫本頁)4j9382 a7-B7 printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (20) After mixing the water-absorbing agent precursor and surface bridging agent, heat treatment is performed to bridge the surface of the water-absorbing agent precursor. The temperature of the above heat treatment varies depending on the surface bridging agent used, but it is preferably 80 ° C or more and 250 ° C or less', more preferably 1203C or more and 230 ° C or less. When the first surface bridging agent and the second surface bridging agent are used in combination, it is preferable! 6 〇 or more. When the processing temperature is less than 80 ° C (less than 160 C when the first and second surface bridging agents are used in combination), 'a uniform bridging structure will not be formed, so a water-absorbing agent with excellent performance such as diffusion absorption rate cannot be obtained. It is not appropriate. In addition, the heat treatment takes time, which causes a reduction in productivity. The processing temperature exceeds 2 50. In the case of 匚, it will cause the deterioration of the water-absorbing agent precursor, and thus the performance of the water-absorbing agent will be reduced. The above-mentioned heat treatment can be performed by a general dryer or a heating furnace. The above-mentioned dryers may be, for example, a trench-type mixer dryer, a rotary dryer, a tray dryer, a fluidized bed dryer, an air-flow dryer, an infrared dryer, and the like. The water absorption agent prepared by the above manufacturing method has a diffusion absorption rate of 25 g / g or more and a water-soluble content of 0 or more and 7 wt% or less after 60 minutes from the start of absorption. Therefore, the above-mentioned water-absorbing agent has the above-mentioned excellent water-absorbing properties. The reason why the water-absorbing agent in the present invention has very excellent properties such as diffusion absorption rate is not certain, but it is speculated that it should be a bridging agent controlled by a specific amount of a high hysteresis component in a specific range during the polymerization of an aqueous solution, and The dispersant uniformly disperses the South Buddha point component in the reaction system, maximizes the original bridging ability of the main component of the bridging agent hindered by the high boiling point component, and also efficiently performs the bridging reaction of the high boiling point component. This results in a significant reduction in the amount of water-soluble components. -23-The size of this paper applies to China National Standard (CNS) A4 (21〇χ297mm) " •-, {Please read the precautions on the back before writing 4 (write this page)
419382 at B7五、發明説明(21 ) 經濟部中央標準局員工消費合作社印製 因此,上述吸水劑具有上述之優異吸水特性。因此,將 吸水劑用於紙尿布、衛生棉等所謂失禁墊片等衛生材料之 吸水體之時,即使在吸水劑(吸水性樹脂)之用量多之時或 吸收體中之樹脂濃度高之時,亦具有幾乎不受吸收體之構 造等之影響、擴散吸收倍率高、水可溶成分量少、且經過 長時間之後水性液體之回流量少、保持非常高之液擴散性 及長期安定之吸水量等優異性能(吸水特性)。藉此,可提 供具有上述優異性能之吸收性物品。上述吸水劑適用於要 求高機能化及薄型化之紙尿布或衛生棉等所謂失禁墊片等 之衛生材料。又,上述方法可製得具有上述優異性能之吸 水劑。 又,亦可在上述吸水劑中加入消臭劑、香料、各種無機 粉末、發泡劑、顏料、親水性短纖維、肥料、氧化劑、還 原劑、水、鹽類等,以對吸水劑、吸收體、吸收性物品等 賦與種種機能。 其次,茲説明即使提高樹脂濃度亦具有隨時保持非常高 之液擴散性及吸水量之等優異性能(吸水特性)之吸水劑、 吸收體及吸收性物品。 本發明之吸收體較佳含有吸收開始起60分鐘後之擴散吸 收倍率爲2 5 g/g以上之吸水劑40重量。/〇以上,更佳5 0重量 %以上,再更佳6 0重量%以上,最佳7 0重量%以上。吸收 開始起60分鐘後之擴散吸收倍率在25g/g以下之吸水劑會 使樹脂樹脂濃度高(高濃度)之吸收體中之橫方向液擴散性 變差,吸收體的吸收容量變小。吸收開始起60分鐘後之擴 ^^^^1 ^^1 . . ( (請先聞讀背面之注意事項再填寫本頁)419382 at B7 V. Description of the Invention (21) Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Therefore, the above water-absorbing agent has the above-mentioned excellent water-absorbing properties. Therefore, when a water-absorbing agent is used in a water-absorbing body of sanitary materials such as incontinence pads such as paper diapers and tampons, even when the amount of the water-absorbing agent (water-absorbing resin) is large or the resin concentration in the absorbent body is high It also has almost no influence from the structure of the absorber, has a high diffusion absorption rate, a small amount of water-soluble components, and has a small amount of aqueous liquid return after a long period of time. It maintains a very high liquid diffusivity and long-term stable water absorption. Excellent performance (water absorption properties). This makes it possible to provide an absorbent article having the above-mentioned excellent properties. The above-mentioned water-absorbing agent is suitable for sanitary materials such as incontinence pads such as paper diapers and sanitary napkins which are required to be highly functional and thin. In addition, the above method can produce a water-absorbing agent having the above-mentioned excellent properties. In addition, deodorants, perfumes, various inorganic powders, foaming agents, pigments, hydrophilic short fibers, fertilizers, oxidants, reducing agents, water, salts, etc. can be added to the water-absorbing agent to absorb the water-absorbing agent and absorbent. Various functions are given to body and absorbent articles. Next, a water-absorbing agent, an absorbent, and an absorbent article which have excellent properties (water-absorbing properties) such as extremely high liquid diffusivity and water absorption at any time even if the resin concentration is increased are described. The absorbent body of the present invention preferably contains 40 weight of a water-absorbing agent having a diffusion absorption rate of 25 g / g or more 60 minutes after the start of absorption. / 0 or more, more preferably 50% by weight or more, still more preferably 60% by weight or more, most preferably 70% by weight or more. A water-absorbing agent having a diffusion absorption rate of 25 g / g or less 60 minutes after the start of absorption will deteriorate the lateral liquid diffusivity in an absorbent body with a high resin resin concentration (high concentration), and the absorption capacity of the absorbent body will decrease. Expansion 60 minutes after the start of absorption ^^^^ 1 ^^ 1.. ((Please read the precautions on the back before filling this page)
Li„ 訂 -24- 本紙張尺度適用中國國家標準(CNS ) A4规格(2I0X297公釐) A7 B7 經濟部中央標率扃員工消費合作社印製 4 ^9382 五、發明説明(22) 散吸收倍.率更佳爲30g/g以上。又,即使含有擴散吸收倍 率在25 g/g以上之吸水劑,其比例不到40重量°/。之吸收體 之單位重量之吸水量亦較低。在本發明之吸收體中,含有 在上述擴散吸收倍率之外,吸收開始起30分鐘後之測定値 所計算出的擴散吸收倍率爲1 5g/g以上之吸水劑且吸收開 始起20分鐘後之測定値所計算出的擴散吸收倍率爲I5g/g 以上之吸水劑者爲最佳。 即,本發明之吸水劑之吸收開始起30分鐘後之擴散吸收 倍率爲15g/g以上且60分鐘後之擴散吸收倍率爲2 5g/g以 上者更佳,吸收開始起20分鐘後之擴散吸收倍率爲I5g/g 以上且60分鐘後之擴散吸收倍率爲25 g/g以上者又更佳, 吸收開始起20分鐘後之擴散吸收倍率爲15g/g以上且60分 鐘後之擴散吸收倍率爲30g/g以上者最佳。吸收開始起3〇 分鐘後之擴散吸收倍率不到1 5g/g之吸水劑在橫方向上之 液擴散性不佳,造成吸收體之吸收力降低乂 本發明之吸收體除了吸水劑之外可視需要包含上述親水 性纖維。吸收體之構造只要是例如如上例示之構造即可, 並不特別受限。如上例示之構造中,使該吸水劑與親水性 纖維均勻地混合並使吸收體中之吸水劑之比例爲4 〇重量% 以上之構造更佳,使此等吸水劑與親水性纖維均勾地混合 並使相對於吸水劑與親水性纖維之合計量之吸水劑之量爲 50重量%以上、較佳爲60重量%以上、更佳爲7〇重量%以 上以上之構造又更佳。藉形成此等構造,吸收體可充分地 發揮其吸水特性。又’該吸收體中之樹脂濃度越高,本發 -25 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先聞讀背面之注意事項再填寫本頁)Li „Order-24- This paper size applies to Chinese National Standards (CNS) A4 specifications (2I0X297 mm) A7 B7 Central Standards of the Ministry of Economy 扃 Printed by Employee Consumer Cooperatives 4 ^ 9382 5. Description of the invention (22) Diffusion absorption. The ratio is more preferably 30 g / g or more. Even if a water absorbing agent having a diffusion absorption rate of 25 g / g or more is contained, the ratio is less than 40 weight ° /. The water absorption per unit weight of the absorber is also low. The absorbent of the invention contains a water-absorbing agent having a diffusion absorption magnification of 15 g / g or more calculated in addition to the above-mentioned diffusion absorption magnification, measured 30 minutes after the start of absorption, and measured 20 minutes after the absorption start. The calculated water absorption agent with a diffusion absorption ratio of I5 g / g or more is the best. That is, the water absorption agent of the present invention has a diffusion absorption ratio of 15 g / g or more after 30 minutes from the start of absorption and a diffusion absorption after 60 minutes. A magnification of 25 g / g or more is better, a diffusion absorption magnification of 20 minutes or more after the start of absorption and a diffusion absorption magnification of 25 g / g or more after 60 minutes is even better, and 20 minutes from the start of absorption After the diffusion absorption rate is 15g / g The diffusion absorption rate above 30g / g is the best after 60 minutes. The absorption capacity of the water absorption agent whose diffusion absorption rate is less than 15g / g 30 minutes after the start of absorption is not good in the lateral direction of the liquid. The absorption force of the absorbent body is reduced. The absorbent body of the present invention may include the above-mentioned hydrophilic fibers in addition to the water-absorbing agent. The structure of the absorbent body is not particularly limited as long as it is, for example, the structure illustrated above. In the structure illustrated above, It is better to mix the water-absorbing agent with the hydrophilic fibers uniformly and make the ratio of the water-absorbing agent in the absorbent body to be 40% by weight or more. A structure in which the total amount of the water absorbing agent and the hydrophilic fiber is 50% by weight or more, preferably 60% by weight or more, and more preferably 70% by weight or more is more preferable. By forming these structures, absorption The body can fully exert its water-absorbing properties. Also, 'the higher the resin concentration in the absorbent body, the present -25-this paper size applies to China National Standard (CNS) A4 specifications (210X297 mm) (please read the back first Note to fill out this page)
f 幻93 82 A7 ___ B7 五、發明説明(23 ) 明之吸水劑及吸收體之特性越顯著。 又,吸收體中之親水性纖維之比例較少之時,可使用如 上例示之接著性黏結劑將吸收體即親水性纖維互相接著。 本發明之吸水劑係以合成某一特定之吸水劑前驅.體再於 特定之表面架橋劑之存在下加熱處理該吸水劑前驅體之製 造方法製得者。上述吸水劑前驅體之平均粒徑在2 Ο Ο μιη〜 600μιη之範圍内,且粒徑在ΐ〇6μιη以下之粒子之比例在 1〇重量%以下,且爲吸收大量的水之後形成水凝膠之樹脂 。吸水劑前驅體係例如以水溶液聚合而合成者。具體而言 ,該吸水劑前驅體可爲聚丙晞酸部分中和物架橋體、澱粉 -丙烯腈接枝聚合物之水解物、澱粉-丙缔酸接枝聚合物之 中和物、醋酸乙晞酯—丙烯酸酯共聚物之鹼化物、丙烯腈 共聚物或丙烯酿胺共聚物之水解物或其架橋劑、含有羧酸 基之架橋聚乙烯醇變性物、架橋異丁烯-馬林酸酐共聚物 紙 -----——T 經濟部中央標準局員工消費合作社印製 上述吸水劑前驅體可例如使選自(甲基)丙烯酸、馬林酸 、馬林酸酐、富馬酸、巴豆酸、衣康酸、丙烯醯基氧基 丙酸等不飽和羧酸或其中和物之!種以上之單體聚合或共 聚之後,對該聚合物進行必要的粉碎.分級等操作,調整 上述之粒徑而製得。上述單體之中,(甲基)丙缔酸及其中 和物爲更佳者。 ' 再者,吸水劑前驅體亦可爲上述單體與可與之共聚之別 種單體4共聚物。具體而言,上述別種單體可爲例如如上 例示之不飽和單體,即陰離子性不飽和單體及其鹽;含有 -26- 尺度適用中國國家標準(CNS ) Α4規格(2丨〇χ297公楚) 經濟部中央標準局員工消費合作社印製 J: 419362 ΑΊ Β7 五、發明説明(24) 非離子性親水基之不飽和單體;陽離子性不飽和單體等。 吸水劑前驅體含有羧基。吸水劑前驅體中之幾基之含量 並不特別受限,但以每1 〇〇g吸水劑前驅體存在〇. 〇 i當量 以上叛基者爲較佳。又,吸水劑前驅體爲例如聚丙酸部分 中和物架橋體之時,該架橋體中之聚丙烯酸未中和物之比 例較佳在1莫耳%〜6 0莫耳%之範園内,更佳在1 〇莫耳% 〜50莫耳%之範圍内。 吸水劑前驅體較佳爲與具有複數聚合性不飽和基或複數 反應性基之架橋劑反應或共聚而使内部架橋者。又,吸水 劑前驅體亦可爲不必架橋劑之自我架橋型。具體而言,上 述架橋劑可爲Ν,Ν'-亞甲雙(甲基)丙烯醯胺、(聚)乙二醇( 曱基)丙烯酸酯、(聚)丙二醇(甲基)丙晞酸酯、三羥曱基丙 燒二(甲基)丙缔酸酯、三幾甲基丙貌三(甲基)丙烯酸酯、 甘油二(甲基)丙晞酸g旨、甘油丙晞酸醋甲基丙烯酸醋、環 氧乙烷變性三羥甲基丙烷三(甲基)丙烯酸酯、季戊四醇四 (甲基)丙烯酸酯、二季戊四醇六(曱基)丙晞酸酯、三烯丙 基氰尿酸酯、三烯丙基異氰尿酸酯、三烯丙基磷酸酯、三 烯两胺、聚(曱基)蟬丙氧基烷、(聚)乙二醇二縮水甘油醚 、甘油二縮水甘油醚、乙二醇、聚乙二醇、丙二醇、甘油 、季戊四醇、乙二胺、聚亞乙亞胺、縮水甘油(甲基)丙烯 酸醋等。此等架橋劑可單獨使用亦可混合2種以上使用。 如上例示之化合物中,以含有複數聚合性不飽和基之化合 物做爲架橋劑使用者較佳。 架橋劑之用量相對於上述單體之合計量較佳在0005莫f Magic 93 82 A7 ___ B7 V. Description of the invention (23) The more obvious the characteristics of the water-absorbing agent and the absorber. When the ratio of the hydrophilic fibers in the absorbent body is small, the hydrophilic fibers, that is, the absorbent body, can be adhered to each other using the adhesive binder as exemplified above. The water-absorbing agent of the present invention is obtained by a method for synthesizing a specific water-absorbing agent precursor, and then heat-treating the water-absorbing agent precursor in the presence of a specific surface bridging agent. The average particle diameter of the above water-absorbing agent precursor is in the range of 200 μm to 600 μm, and the proportion of particles having a particle diameter of ≦ 06 μm is 10% by weight or less, and the hydrogel is formed after absorbing a large amount of water The resin. The water-absorbing agent precursor system is synthesized by, for example, polymerization in an aqueous solution. Specifically, the water-absorbing agent precursor can be a polypropionate partially neutralized bridge, a hydrolysate of a starch-acrylonitrile graft polymer, a starch-acrylic acid graft polymer neutralizer, and ethyl acetate Ester-acrylate copolymers, hydrolysates of acrylonitrile copolymers or acrylamide copolymers or their bridging agents, bridging polyvinyl alcohol denaturates containing carboxylic acid groups, bridging isobutylene-marin anhydride copolymer paper- ----—— T The above-mentioned water-absorbing agent precursor printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economy can be selected from, for example, (meth) acrylic acid, maleic acid, maleic anhydride, fumaric acid, crotonic acid, itaconic Unsaturated carboxylic acids such as acids, acryloyloxypropionic acid, or neutralized ones! After polymerizing or copolymerizing more than one type of monomer, the polymer is subjected to necessary pulverization, classification and other operations, and the particle size is adjusted to obtain the polymer. Among the above monomers, (meth) acrylic acid and its neutralized substance are more preferable. In addition, the water-absorbing agent precursor may be a copolymer of the above monomers and other monomers 4 copolymerizable therewith. Specifically, the above-mentioned other monomers may be, for example, unsaturated monomers as exemplified above, that is, anionic unsaturated monomers and salts thereof; containing -26- scales applicable to China National Standard (CNS) A4 specifications (2 丨 〇χ297 公公(Chu) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs J: 419362 ΑΊ Β7 V. Description of the invention (24) Non-ionic hydrophilic unsaturated monomers; cationic unsaturated monomers, etc. The water-absorbing agent precursor contains a carboxyl group. The content of several bases in the water-absorbent precursor is not particularly limited, but it is more preferable that the base is present in an amount of 0.001 equivalent per 100 g of the water-absorbent precursor. When the water-absorbing agent precursor is, for example, a polyacrylic acid partially neutralized bridge, the proportion of polyacrylic acid unneutralized in the bridge is preferably in the range of 1 mol% to 60 mol%. It is preferably in the range of 10 mol% to 50 mol%. The water-absorbing agent precursor is preferably one which reacts or copolymerizes with a bridging agent having a plurality of polymerizable unsaturated groups or a plurality of reactive groups to bridge the inside. In addition, the water-absorbing agent precursor may be a self-bridged type that does not require a bridging agent. Specifically, the bridging agent may be Ν, Ν'-methylenebis (meth) acrylamide, (poly) ethylene glycol (fluorenyl) acrylate, (poly) propylene glycol (meth) propionate , Tris (hydroxymethyl) propane di (meth) propionate, tris (methyl) propane tris (meth) acrylate, glycerol di (meth) propionate g, glyceryl propionate methyl ester Acrylic acid vinegar, ethylene oxide modified trimethylolpropane tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (fluorenyl) propionate, triallyl cyanurate , Triallyl isocyanurate, triallyl phosphate, triallylamine, poly (fluorenyl) cyperoxyalkane, (poly) ethylene glycol diglycidyl ether, glycerol diglycidyl ether , Ethylene glycol, polyethylene glycol, propylene glycol, glycerin, pentaerythritol, ethylenediamine, polyethyleneimine, glycidyl (meth) acrylate, and the like. These bridging agents can be used alone or in combination of two or more. Among the compounds exemplified above, it is preferable to use a compound containing a plurality of polymerizable unsaturated groups as a bridging agent. The amount of bridging agent is preferably 0,005 moles relative to the total amount of the above monomers.
____-27- 本紙浪準(CNS (請先閱讀背面之注意事項再填寫本頁)____- 27- This paper is accurate (CNS (Please read the notes on the back before filling this page)
419382 A7 發明説明(25 ) 經濟部中央標準局貝工消費合作社印製 耳%〜2莫耳%之範圍内,更佳在〇 〇5莫耳%〜ι莫耳y、 範圍内。架橋劑之用量少於0_005莫耳%或高於2莫耳 時,吸水劑之擴散吸收倍率會降低,故不宜。 〇心 又,使上述聚合反應開始聚合時,可用如上例示之 基聚合開始劑或活化能量線等。 由 上述吸水劑前驅體之擴散吸收倍率並不滿足本發明中、 較佳範圍。因此,必須使用表面架橋劑使該吸水劑前^ 之表面附近之架橋密度高於其内部。即,用特定之表 橋劑使吸水劑前驅體之表面附近架橋,而得到本發明$ 水劑。 吸 即,本發明之吸水劑係將上述水溶液聚合所得之吸水 前驅體進行分級等之作業,以將之調整到例如平均粒徑在 200μηι〜600μιη之範圍内,且粒徑在1〇6帥以下之粒子 之比例在10重量%以下之後,對該吸水劑前驅體在特^之 表面架橋劑之存在下進行加熱處理而得。上述吸水劑前驅 體可造粒成所要形狀,亦可爲球狀、鱗片狀、不定形破碎 狀、顆粒狀等種種形狀❶再者,吸水劑前驅體可爲i次粒 次’亦可爲2次粒子之造粒體。又,例如平均粒經在 20 0μιη〜6 00μηι之範園外時或粒徑在1〇6μιη以下之粒子 之比例超過10重量%時,有無法得到擴散吸收倍率等性能 優越之吸水劑之虞。 上述表面架橋劑係混合上述溶解度因子(8?値)互異之第 1表面架橋劑及第2表面架橋劑而成。混合從上述第〗表面 架橋劑之群所選出之1種或2種以上之化合物及從上述第2 -28- 本紙張;^度適用中國國家標準(CNS ) Α4規格(2Ι0Χ297公釐) ------:——— f請先閱讀背面之注意事項再填寫本 訂 419382 A7 __I____B7五、發明説明(26 ) 經濟部中央標準扃貞工消費合作社印製 表面架橋劑之群所選出之1種或2種以上之化合物而使用者 爲特佳。只用1種或2種以上之第1表面架橋劑之時或只用 1種或2種以上之第2表面架橋劑之時,有無法得到擴散吸 收倍率等性能優越之吸水劑之虞。 又,表面架橋劑之用量、吸水劑前驅體與表面架橋劑之 混合方法及混合二者之時所使用之混合裝置可採用上述之 用量、混合方法及混合裝置。又,混合吸水劑前驅體及表 面架橋劑之時,可使用上述溶媒(水及/或親水性有機溶媒) 〇 加熱處理之溫度視所用之表面架橋劑而不同,但以16〇 C以上及250 °C以下較佳。處理溫度不到160 之時,不 會形成均句的架橋構造,因而無法得到擴散吸收倍率等性 能優越的吸水劑,故不宜。又,加熱處理須花費時間,故 引起生產性的降低。處理溫度超過250X:時,會引起吸水 劑前驅體之劣化,因而降低吸水劑之性能,故不宜。又, 上述加熱處理可用例如如上例示之乾燥機或加熱爐進行。 上述製造方法所製得之吸水劑在吸收開始起3 〇分鐘後之 擴散吸收倍率爲15g/g以上,且60分鐘後之擴散吸收倍率 爲25g/g以上。又’如上所示,吸收體含有吸水劑4〇重量 %以上。因此’上述吸水劑及吸收體具有上述之優異吸水 特性。因而’將吸收體用於吸收性物品之時,即使在吸水 劑之用量多之時或吸收體中之樹脂濃度高之時,亦具有保 持非常高之液擴散性及吸水量等優異性能(吸水特性)。 本發明中之吸水劑具有非常優異之擴散吸收倍率等性能 (請先閲讀背面之注ί頃再填寫衣頁}419382 A7 Description of invention (25) Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, in the range of mol% to 2mol%, and more preferably in the range of mol% to mol. When the amount of bridging agent is less than 0_005 mole% or higher than 2 moles, the diffusion absorption ratio of the water-absorbing agent will be reduced, so it is not suitable. 〇 心 When starting the polymerization reaction, a base polymerization initiator such as that exemplified above, an activation energy ray, and the like can be used. The diffusion absorption ratio of the aforementioned water-absorbing agent precursor does not satisfy the preferred range in the present invention. Therefore, a surface bridging agent must be used to make the density of the bridging near the surface of the water absorbing agent higher than that of the inside thereof. That is, a specific surface bridging agent is used to bridge the vicinity of the surface of the water-absorbing agent precursor to obtain the liquid agent of the present invention. That is, the water-absorbing agent of the present invention is a process such as classifying the water-absorbing precursor obtained by polymerizing the above-mentioned aqueous solution to adjust, for example, an average particle diameter in a range of 200 μm to 600 μm, and the particle diameter is less than 106 After the proportion of the particles is 10% by weight or less, the water-absorbing agent precursor is obtained by performing a heat treatment in the presence of a special surface bridging agent. The above-mentioned water-absorbing agent precursor can be granulated into a desired shape, and can also be spherical, scaly, irregularly shaped, granular, and other shapes. Moreover, the water-absorbing agent precursor can be i times the number of particles, or 2 Granules of secondary particles. For example, when the average particle size is outside the range of 200 μm to 600 μm, or when the proportion of particles having a particle size of 10 μm or less exceeds 10% by weight, a water-absorbing agent having excellent performance such as a diffusion absorption ratio may not be obtained. The surface bridging agent is obtained by mixing the first surface bridging agent and the second surface bridging agent with different solubility factors (8? 値). Mix one or more compounds selected from the above-mentioned surface bridging agent group and the above-mentioned 2-28- this paper; the degree is applicable to the Chinese National Standard (CNS) A4 specification (2Ι0 × 297 mm)- ----: ——— f Please read the precautions on the back before filling in this order 419382 A7 __I____B7 V. Description of the invention (26) The central standard of the Ministry of Economic Affairs 扃 正 工 consuming cooperatives printed the surface bridging agent selected 1 One or two or more compounds are particularly preferred for users. When only one or two or more first surface bridging agents are used, or when only one or two or more second surface bridging agents are used, there is a possibility that a water-absorbing agent having excellent properties such as diffusion absorption rate cannot be obtained. In addition, the amount of the surface bridging agent, the method for mixing the precursor of the water-absorbing agent and the surface bridging agent, and the mixing device used when mixing the two can adopt the above-mentioned amount, mixing method, and mixing device. When mixing the water-absorbing agent precursor and the surface bridging agent, the above-mentioned solvent (water and / or hydrophilic organic solvent) can be used. The temperature of the heat treatment depends on the surface bridging agent used, but it is more than 16 ° C and 250 Below ° C is preferred. When the processing temperature is lower than 160, a uniform bridge structure will not be formed, so it is not possible to obtain a water-absorbing agent with excellent properties such as diffusion absorption ratio, which is not suitable. In addition, the heat treatment takes time, which causes a reduction in productivity. When the processing temperature exceeds 250X :, it will cause the deterioration of the water absorbing agent precursor, thus reducing the performance of the water absorbing agent, so it is not suitable. The heat treatment can be performed by, for example, a dryer or a heating furnace as exemplified above. The water absorption agent prepared by the above manufacturing method has a diffusion absorption magnification of 15 g / g or more after 30 minutes from the start of absorption, and a diffusion absorption magnification of 25 g / g or more after 60 minutes. As described above, the absorbent body contains 40% by weight or more of a water-absorbing agent. Therefore, the above-mentioned water-absorbing agent and absorbent have the above-mentioned excellent water-absorbing properties. Therefore, when the absorbent body is used in an absorbent article, even when the amount of the water-absorbing agent is large or the resin concentration in the absorbent body is high, it has excellent properties such as maintaining a very high liquid diffusivity and water absorption (water absorption). characteristic). The water-absorbing agent in the present invention has very good properties such as diffusion absorption rate (please read the note on the back before filling in the clothing page)
r -訂_ Λ. -29- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公逢) A7 B7 五、發明説明(27 ) 之原因並不確定,但據推測,應是該吸收體中之水性液體 之液擴散及液傳達在以往的吸收體中係藉親水性纖維之毛 細管現象達成,而在本發明之吸收體中則是具有優異擴散 吸收倍率之吸水劑之高度液擴散性(液擴散能力及液傳達 能力)在吸收體中亦充分發揮的結果。 又,本發明中之吸收性物品係以具有透液性之薄片及具 有不透液性之薄片夾持含構造如上之吸收體之吸收層而成 。該吸收性物品由於具有含構造如上之吸收體之吸收層, 故具有上述之優異吸水特性。具體而言,吸收性物品可爲 例如紙尿布、衛生棉等所謂失禁塾片等衛生材料等,但並 不特別受限。吸收性物品由於具有優異之吸水特性,故例 如該吸收性物品爲紙尿布之時,可防止尿液之滲漏,同時 可賦與所謂乾爽感。 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 上述具透液性之薄片(以下稱液透過性薄片)係由具有可 透過水性液體之性質之材料所構成。液透過性薄片之材料 可爲例如不織布、織布;聚乙烯或聚丙烯、聚酯、聚醯胺 等所構成之多孔質合成樹脂薄膜等。上述具不透液性之薄 片(以下稱液不透過性薄片)係由具有不透過水性液體之性 質之材料所構成。液不透過性薄片可爲例如聚乙烯、聚丙 烯、亞乙基乙晞醋酸酯、聚氯乙晞等所構成之合成樹脂薄 膜;此等合成樹脂與不纖布之複合材料所構成之薄膜;此 上述合成樹脂與不織在之複合材料所構成之薄膜等。又, 液不透過性薄片亦可具備不透過蒸氣之性質。 吸收層之構造並不特別受限,只要有上述吸收體即可。 -30- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐)r -Order_ Λ. -29- This paper size applies Chinese National Standard (CNS) A4 specification (210X297). A7 B7 5. The reason for the invention description (27) is not certain, but it is speculated that it should be the absorber The liquid diffusion and liquid communication of the aqueous liquid in the past is achieved by the capillary phenomenon of hydrophilic fibers in the conventional absorbent body, while in the absorbent body of the present invention, the liquid absorbent has a high liquid diffusivity with excellent diffusion absorption rate Liquid diffusing ability and liquid transmitting ability) were also exerted in the absorber. The absorbent article in the present invention is formed by sandwiching an absorbent layer containing an absorbent structure as described above with a sheet having liquid permeability and a sheet having liquid impermeability. Since this absorbent article has an absorbent layer including the absorber structured as described above, it has the above-mentioned excellent water absorption characteristics. Specifically, the absorbent article may be, for example, sanitary materials such as so-called incontinence pads such as paper diapers and tampons, but it is not particularly limited. Since the absorbent article has excellent water-absorbing properties, for example, when the absorbent article is a paper diaper, leakage of urine can be prevented and a so-called dry feeling can be imparted. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). Make up. The material of the liquid-permeable sheet may be, for example, a nonwoven fabric or a woven fabric; a porous synthetic resin film made of polyethylene, polypropylene, polyester, polyamide, or the like. The aforementioned liquid-impermeable sheet (hereinafter referred to as a liquid-impermeable sheet) is composed of a material having a property of being impermeable to an aqueous liquid. The liquid-impermeable sheet may be, for example, a synthetic resin film made of polyethylene, polypropylene, ethylene acetoacetate, polyvinyl chloride, etc .; a film made of a composite material of these synthetic resins and a non-fibrous cloth; The film made of the above synthetic resin and non-woven composite material. The liquid-impermeable sheet may have a property of being impermeable to vapor. The structure of the absorption layer is not particularly limited as long as the above-mentioned absorber is provided. -30- This paper size is applicable to China National Standard (CNS) A4 (210X297 mm)
又 經濟部中央標準局員工消費合作社印製 吸收層之製造方法並不特別受限。再者,以液透過性 薄片及液不透過性薄片夾持吸收層之方法(即吸收性物品 之製造方法)並不特別受限。 又,可於上述吸水劑或吸收體中右作消臭劑、香料、各 種無機粉末、發泡劑、顏料、染料、親水性短纖維、肥料 、氧化劑、還原劑、水、鹽類等,以對吸水劑、吸收體及 吸收性物品賦與各種機能。, 本發明之其他目的、特徵及優點在如下之説明後將可充分瞭 解:又’本發明之益處在參照圖式_如下之後將更爲清楚。 圖式之簡單説明 圖1爲測量本發明中之吸水劑所顯示之性能之—之擴散 吸收倍率時所用之測定裝置之概略之剖面圖。 、 圖2爲上述測定裝置之重要部分之剖1面圖 圖3爲説明上述狀裝置中生理食^之擴散方向之圈。 圖4爲測量本發明中之吸水劑所顯示之性能之一之加壓 下吸水倍率時所用之測定裝置之概略之叫面圖。 圖5爲測量本發明中之吸收性物品或/收體所顯示之性能 I一之擴散吸收倍率時所用之測定裝疑之概略之剖面圖。 圖6爲上述測定裝置之重要部分:之制面圖。 圖7爲説明上述測定裝置中生理含鹽水之擴散方向之圖。 ^天平;2:容器;2a、2b··開口部;3:外氣吸入管;4 5:測定部;6 :玻,材;7:遽紙;8:薄片;9 支持圓筒;10 :金屬網;11 :重鏤;12:生理食鹽水;20 人工尿;20a、b :液面;21 :滴定管;21& :主管部;21b 側管部;2lc:頂部開口部;2ld:底部開口部;22:測定 ;23 :導管;24 :玻璃濾材;25 :測定部;% :栓;27 : …支持圓筒;29 :不織布;3〇 :重锸。 28 -31 - 私紙張尺度適用中國國家標準(CNS ) Μ規格(210 X 297公釐) (請先閲讀背面之注意事項再填寫本頁) 訂In addition, the manufacturing method of the absorbent layer printed by the staff consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs is not particularly limited. Furthermore, the method of sandwiching the absorbent layer between the liquid-permeable sheet and the liquid-impermeable sheet (that is, the method of manufacturing the absorbent article) is not particularly limited. In addition, it can be used as a deodorant, perfume, various inorganic powders, foaming agents, pigments, dyes, hydrophilic short fibers, fertilizers, oxidants, reducing agents, water, salts, etc. in the water absorbent or absorbent. Various functions are given to a water-absorbing agent, an absorber, and an absorbent article. Other objects, features, and advantages of the present invention will be fully understood after the following description: Also, the benefits of the present invention will be more apparent after referring to the drawings_ as follows. Brief Description of the Drawings Figure 1 is a schematic cross-sectional view of a measuring device used to measure the diffusion absorption rate of the performance shown by the water-absorbing agent of the present invention. Fig. 2 is a sectional view of an important part of the above-mentioned measuring device. Fig. 3 is a circle explaining the diffusion direction of physiological food in the above-mentioned device. Fig. 4 is a schematic view of a measuring device used for measuring the water absorption rate under pressure, which is one of the properties exhibited by the water-absorbing agent in the present invention. Fig. 5 is a schematic cross-sectional view of a measurement method used to measure the performance of the absorbent article or / collector of the present invention I-diffused absorption ratio. Fig. 6 is a plan view of an important part of the above measuring device. FIG. 7 is a diagram illustrating a diffusion direction of physiological saline in the measurement device. ^ Balance; 2: container; 2a, 2b ·· opening; 3: outside air suction tube; 4 5: measuring section; 6: glass, wood; 7: paper; 8: sheet; 9 support cylinder; 10: Metal mesh; 11: re-cutting; 12: physiological saline; 20 artificial urine; 20a, b: liquid surface; 21: burette; 21 &: main section; 21b side tube section; 2lc: top opening; 2ld: bottom opening 22: measurement; 23: catheter; 24: glass filter material; 25: measurement section;%: plug; 27: ... support cylinder; 29: non-woven fabric; 30: heavy weight. 28 -31-Private paper size applies Chinese National Standard (CNS) M size (210 X 297 mm) (Please read the precautions on the back before filling this page) Order
J 經濟部中央標準局員工消費合作社印製 4193 82 A7 ______B7 五、發明説明(29 ) 發明之最佳實施態樣 以下兹以實施例及比較例進一步詳細説明本發明,但本 發明並不受限於其任一者。又,吸水劑、吸收體及吸收性 物品之諸性以如下之方法測定1 (a) 吸水倍率 i) 茶袋(tea-bag)法 將吸水劑(或吸水劑前驅體)〇 2g均勻地放入不織布製之 茶袋式袋(40mm X 140mm)中,浸潰於0.9重量%氯化納 水溶液(生理食鹽水)中。60分鐘後提起茶袋,瀝水一定時 之後’測定茶袋式袋之重量Wia(g)。又,不用吸水劑而進 行相同的操作,測定此時之重量WGa(g)。其次,從重量 wla _ w0a,以下式: 吸水倍率(g/g)=(重量Wla(g)-重量WGa(g))/吸水劑重量(g) 算出吸水倍率(g/g)。 ii) 離心分離法 將吸水劑0.2g均勻地放入不織布製之袋(60mm X 60mm)中,浸潰於0.9重量%氯化鈉水溶液(生理食鹽水) 中。60分鐘後提起茶袋,用離心分離機以250G脱水3分鐘 之後,測定袋之重量W1 b ( g)。又,不用吸水劑而進行相同 的搡作,測定此時之重量WQb(g)。其次,從重量wlb . w0b,以下式: 吸水倍率(g/g)=(重量Wlb(g)-重量W〇b(g))/吸水劑重量(g) 算出吸水倍率(g/g)。 (b) 水可溶成分量 -32- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再4·.寫本頁)J Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 4193 82 A7 ______B7 V. Description of the invention (29) The best mode of the invention The following examples and comparative examples are used to further describe the present invention in detail, but the invention is not limited To any of them. In addition, the properties of the water-absorbing agent, absorbent body and absorbent article were measured by the following methods: 1) (a) water-absorbing rate i) tea-bag method: put 2 g of water-absorbing agent (or precursor of water-absorbing agent) uniformly A non-woven tea bag type (40 mm x 140 mm) was immersed in a 0.9% by weight aqueous sodium chloride solution (physiological saline). After 60 minutes, the tea bag was lifted, and after a certain amount of water was drained, the weight of the tea bag-type bag Wia (g) was measured. The same operation was carried out without using a water-absorbing agent, and the weight WGa (g) at this time was measured. Next, from the weight wla_w0a, the following formula: Water absorption ratio (g / g) = (weight Wla (g)-weight WGa (g)) / water absorbent weight (g) to calculate the water absorption ratio (g / g). ii) Centrifugation method Put 0.2 g of water-absorbing agent evenly into a non-woven bag (60mm X 60mm), and immerse it in a 0.9% by weight aqueous sodium chloride solution (physiological saline). After 60 minutes, the tea bag was lifted up and dehydrated at 250 G for 3 minutes using a centrifugal separator, and then the weight W1 b (g) of the bag was measured. The same operation was performed without using a water-absorbing agent, and the weight WQb (g) at this time was measured. Next, from the weight wlb. W0b, the following formula: Water absorption ratio (g / g) = (weight Wlb (g)-weight W0b (g)) / water absorbent weight (g) to calculate the water absorption ratio (g / g). (b) Water-soluble content -32- This paper size is applicable to Chinese National Standard (CNS) A4 (210X297mm) (Please read the precautions on the back before writing to 4 ...)
4193 82 A7 B7 五、發明説明(3〇 ) 經濟部中央標準局員工消費合作社印製 將吸水劑(或吸水劑前驅體)0.500g分散於1000ml之去 離子水中,攪拌16小時後,以濾紙過濾之。其次把所得之 滤液50g移到100ml燒杯中,在該;慮液中加入〇1N-氫氧 化鈉水溶液lml、N/2〇〇—甲基乙二醇殼聚糖水溶液 10.00ml、及0.1%甲苯胺藍水溶液4滴。 其次,以N/400-聚乙烯硫酸鉀水溶液進行上述燒杯之 溶液之膠液滴定,以溶液之顏色從藍色變成紫紅色之時爲 滴ZIL終點,求出此時之滴定量A ( m 1)。又,以去離子水 5 0g代替濾液5 〇g進行同樣的操作,求出空白滴定時之滴 定量B(ml)。從此等滴定量A . B與供給到吸水劑中之丙烯 酸之中和率\(莫耳%),以下式: 水可溶成分量(重量%) = (B(ml)-A(ml)) X 0.01 X [72 ( 100-x) + 94x]/1 00 算出水可溶成分量(重量%)。 (c )吸水劑之擴散吸收倍率 首先,茲參照圖i及圖2於下簡單地説明測定吸水劑之擴 散吸收倍率時所用之測定裝置。 如圖1所示,測定裝置係由天平i、裝載於天平i上之一 定谷里之谷器2、外氣吸入管3、導管4 '玻璃濾材6、與 裝載於玻璃濾材6上之測定部5所構成。上述容器2在其頂 邵有開口部2a,在其侧面部有開口部2b,開口部以上嵌 入外氣吸入管3,且開口部2b上裝有導管4。又,容器2中 有預足量之生理食鹽水12 ^外氣吸入管3之下端部沒入生 理食鹽水12中。上述玻璃濾材6之直徑爲7〇111也。容器2及 33 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公產 ---------衣-- V (請先閱讀背面之注意事項再填寫本頁) 訂- 4 ^93 82 五、發明説明(3l ) 經濟部中央標準局員工消費合作社印裝 玻璃濾材6固定於只比外氣吸入管3之下端高一點的位置。 如圖2所示,上述測定部5具有濾紙7、薄片8、支持圓筒 9、貼附於支持圓筒9之底部之金屬網1 〇及重鐘11。測定 部5於玻璃濾材6依序裝載濾紙7 '薄片8及支持圓筒9(即 金屬網10),且支持圓筒9内部(即金屬網1〇上)裝載重錘 11。薄片8由聚對苯二甲酸乙二醇酯(pet)所構成,中央 部形成具有直徑18mm之開口部之厚〇·ι mm之甜甜圏狀。 支持圓筒9之内徑爲6 0mm。金屬網1〇爲不鏽鋼製,形成 4 0號篩孔(篩孔之大小爲3 8 μιη)。金屬網1 〇上均勻地撒在 預定量之吸水劑。調整重錘U之重量,以在金屬網1〇(即 吸水劑)上均勻地施加20g/cm2之荷重。 以構造如上之測定裝置測量吸水劑之擴散吸收倍率。測 定方法説明如下。 首先,進行將預定量之生理食鹽水12加入容器2及將外 氣吸入管3嵌入容器2等預定之準備動作。其次將濾紙7裝 載於玻璃滤材6上,在濾紙7上装載薄片8,並使其開口部 位於玻璃滤材6之中心邵。另一方面,與此等裝载動作之 同時,在支持圓筒9内部(即金屬網1〇上)均勻地撒布吸水 劑1.5g(較佳爲用分級等操作預先將粒徑調整於3〇〇μιη〜 5〇Ομιη之吸水劑l.5g),在此吸水劑上裝載重錘u。 其次,舲己裝载金屬網1〇(即吸水劑)及重錘【丨之上述支 持圓筒9裝載於薄片8上,使其中心部與破璃濾材6之中心 部一致。 從在薄片8上裝載支持圓筒9之時開始,隔2〇分鐘、3〇 ___-34- 本紙張尺度適用中國國家標準(CNS ) 餐^ (請先聞讀背面之注$項再填寫本頁)4193 82 A7 B7 V. Description of the invention (30) Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, dispersing 0.500 g of water absorbing agent (or water absorbing agent precursor) in 1000 ml of deionized water, stirring for 16 hours, and filtering with filter paper Of it. Next, 50 g of the obtained filtrate was transferred to a 100 ml beaker, and into this solution, 1 ml of an aqueous solution of OH 1N-sodium hydroxide, 10.00 ml of an aqueous solution of N 200-methyl glycol chitosan, and 0.1% formazan 4 drops of aniline blue in water. Next, use the N / 400-polyethylene potassium sulfate aqueous solution to perform the titration of the glue solution of the above beaker solution. When the color of the solution changes from blue to magenta, the end point of the ZIL drop is determined, and the titer A (m 1 at this time) is obtained. ). The same operation was performed with 50 g of deionized water instead of 50 g of the filtrate, and the titer B (ml) at the time of blank titration was obtained. From these titrations, the neutralization ratio \ (mol%) of acrylic acid supplied to the water-absorbing agent with the amount of A. B is as follows: Amount of water-soluble component (% by weight) = (B (ml) -A (ml)) X 0.01 X [72 (100-x) + 94x] / 1 00 Calculate the amount of water-soluble components (% by weight). (c) Diffusion absorption ratio of water-absorbing agent First, a measuring device used for measuring the diffusion absorption ratio of a water-absorbing agent will be briefly described below with reference to Figs. i and 2. As shown in FIG. 1, the measurement device is composed of a balance i, a certain valley device mounted on the balance i, an outside air suction pipe 3, a duct 4 ′ glass filter material 6, and a measurement unit mounted on the glass filter material 6. 5 is composed. The container 2 has an opening portion 2a on its top, and an opening portion 2b on its side portion. The outside air suction pipe 3 is fitted above the opening portion, and a duct 4 is mounted on the opening portion 2b. In addition, the container 2 has a pre-filled amount of physiological saline 12 ^ The lower end of the external air suction tube 3 is submerged in the physiological saline 12. The diameter of the glass filter medium 6 is 7011. Containers 2 and 33-This paper size is in accordance with China National Standard (CNS) A4 specifications (210X 297 public production --------- clothing-V (Please read the precautions on the back before filling this page) Order-4 ^ 93 82 V. Description of the invention (3l) The printed glass filter material 6 of the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs is fixed at a position slightly higher than the lower end of the outside air suction pipe 3. As shown in FIG. 2, the measurement unit 5 has Filter paper 7, sheet 8, support cylinder 9, metal mesh 10 attached to the bottom of support cylinder 9, and heavy clock 11. The measurement section 5 sequentially loads filter paper 7 'sheet 8 and support cylinder 9 on glass filter material 6. (That is, the metal mesh 10), and supports the weight 11 inside the cylinder 9 (that is, on the metal mesh 10). The sheet 8 is made of polyethylene terephthalate (pet), and the center part has a diameter of 18 mm. The thickness of the opening part is 0mm thick and sweet. The inner diameter of the supporting cylinder 9 is 60mm. The metal mesh 10 is made of stainless steel to form a 40 mesh sieve (the size of the sieve is 3 8 μιη) . Spread a predetermined amount of water absorbing agent evenly on the metal mesh 10. Adjust the weight of the weight U so that the metal mesh 10 (that is, the water absorbing agent) is evenly spread. A load of 20 g / cm2 is applied to the ground. The diffusion absorption ratio of the water-absorbing agent is measured with the measuring device constructed as described above. The measuring method is described below. First, a predetermined amount of physiological saline 12 is added to the container 2 and the external air suction pipe 3 is embedded in the container. 2. Wait for the predetermined preparation operation. Next, load the filter paper 7 on the glass filter material 6 and load the sheet 8 on the filter paper 7 so that the opening is located at the center of the glass filter material 6. On the other hand, load At the same time, spread 1.5g of water-absorbing agent evenly inside the supporting cylinder 9 (that is, on the metal mesh 10) (preferably, adjust the particle size of the water-absorbing agent in advance to 300 μm to 500 μm by operations such as classification) 1.5g), a weight u is loaded on the water-absorbing agent. Next, a metal net 10 (that is, a water-absorbing agent) and a weight [the above-mentioned support cylinder 9 of the weight [丨] are loaded on the sheet 8 to make the center thereof. The part is the same as the central part of the broken glass filter material 6. Starting from the time when the supporting cylinder 9 is loaded on the sheet 8, every 20 minutes, 30_-34- This paper size applies to the Chinese National Standard (CNS) meal ^ ( (Please read the note on the back before filling in this page)
-訂 ΖΛ- 4 82-Order ZA- 4 82
五、發明説明(32 ) 經濟部中央標準局員工消費合作社印製 分鐘或60分鐘後用天平1測量吸水劑所吸收之生理食鹽水 之重量W2(g)。又,如圖3所示,生理食鹽水12在通過 薄片8之開口部之後,在吸水劑之横方向上大致均勻地擴 散,同時被吸水劑吸收。 其次,從上述重量W2以下式: 吸水劑工擴散吸收倍率(g/g)=重量W2(g)/吸水劑之重量 算出吸水開始起20分鐘後、30分鐘後、或6〇分鐘後之吸 水劑之擴散吸收倍率(g/g)。 (d)吸水劑在加壓下之吸水倍率 苜先參照圖4簡單説明測定吸水劑在加壓下之吸水倍率 時所用之裝置。 如圖4所示,測定裝置係由滴定管2 i、測定台22、導管 23、裝載於測定台22上之玻璃濾材24、及裝載於玻璃濾 材24上之測定部25所構成。上述滴定管21形成具有主管 邵2 1 a及側管部2 1 b之略T字管狀。主管部2 1 a在其頂部有 開口部2 1 c,在其底部有開口部2〖^ ’開口部2 i c上嵌入栓 20 ’且主管部21a上裝設導管28。又,侧管部21b突出設 置於主管部2 1 a之侧面部之中央,其先端部向上方閉口。 上述測定台22之上面部之直徑爲7 0mni。滴定管2 1、測定 台22與導管23互相連通,此等滴定管2 i、測定台22與導 管23(即連通部分)中有預定量之人工尿2〇。又,滴定管 2 1之主管部2 1 a上有刻度。又,滴定管2丨中之主管部2 ! b 之液面20a之位置比主管部2 la之液面2〇b之位置低一預定 之高度。 -35- 本紙依尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) (請先閲讀背面之注意事項再填寫本頁) 訂 .1 經濟部中央標準局貝工消費合作社印製 419382 A7 B7 五、發明説明(33) 上述測定邵25具有濾紙2 7、支持圓筒2 8、貼附於此支 持圓筒28底部之不織布29、及重錘30。又,測定部25在 玻璃濾材24上依序裝載濾紙27、支持圓筒28(即不織布 29),同時支持圓筒28内部(即不織布29上)裝載重錘30。 破璃濾材24之直徑爲7〇mm。支持圓筒28之内徑爲55mm °又’測定台22在裝載測定部25之後,濾紙2 7之位置設 定於與上述侧管部21b之液面20a相等之位置。又,於不 織布29上均勻地撒布預定量之吸水劑。調整重鐘之重 量’以在不織在2 9(吸水劑)上均勻地施加2〇g/cm2之荷重 〇 以構造如上之測定裝置測量吸水劑之擴散吸收倍率。測 定方法説明如下。 首先,預先製備預定量之人工尿(組成:尿素丨9重量% 、NaCl 0·8 重量%、CaCl2 0.1 重量%、MgS04 0.1重量 %)20 ’將該人工尿20注入上述連通部分。其次,進行在 滴定管21之開口部2 lc上裝上栓26及將測定台22設定於預 定之高度等預定之準備動作。其次將濾紙27裝載於測定台 22之中央部之玻璃濾材24。另一方面,與此等裝載動作 之同時’在支持圓筒9内部(即不織布29上)均勻地撒布吸 水劑0.2g,在此吸水劑上裝載重錘30。 其次’將己裝載不織布29(即吸水劑)及重錘3〇之上述支 持圓筒28裝載於濾紙27上,使其中心部與坡璃濾材24之 中心部一致。 從在遽紙2 7上裝載支持圓筒2 8之時開始,隔3 〇分鐘後 -36- 本紙張尺度適用中國國家榇準(CMS ) A4規格(210X297公釐} (請先閱讀背面之注$項再填窝本頁)V. Description of the invention (32) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economy Minutes or 60 minutes later, use Balance 1 to measure the weight of physiological saline absorbed by the water absorbent W2 (g). As shown in Fig. 3, after passing through the opening portion of the sheet 8, the physiological saline 12 diffuses substantially uniformly in the lateral direction of the water-absorbing agent and is absorbed by the water-absorbing agent. Secondly, from the above-mentioned weight W2, the following formula: Water-absorbing agent diffusion absorption ratio (g / g) = weight W2 (g) / weight of the water-absorbing agent. Diffusion absorption rate of the agent (g / g). (d) Water absorption ratio of the water absorbing agent under pressure First, referring to Fig. 4, a device for measuring the water absorption ratio of the water absorbing agent under pressure will be briefly described. As shown in Fig. 4, the measuring device is composed of a burette 2i, a measuring table 22, a duct 23, a glass filter material 24 mounted on the measuring table 22, and a measuring section 25 mounted on the glass filter material 24. The burette 21 is formed in a T-shaped tube shape having a main pipe 2 1 a and a side pipe portion 2 1 b. The main pipe section 2 1 a has an opening section 2 1 c at the top thereof, and an opening section 2 2 at its bottom section. A plug 20 ′ is fitted in the opening section 2 i c, and a duct 28 is installed in the main pipe section 21 a. In addition, the side pipe portion 21b is protrudedly provided at the center of the side surface portion of the main pipe portion 2a, and its tip end is closed upward. The diameter of the upper surface of the measuring table 22 was 70 mni. The burette 2 1. The measuring table 22 and the conduit 23 communicate with each other. These burettes 2 i, the measuring table 22 and the guide tube 23 (that is, the communicating portion) have a predetermined amount of artificial urine 20. In addition, the main tube portion 2 1 a of the burette 21 is graduated. In addition, the position of the liquid surface 20a of the main portion 2b in the burette 2 is lower than the position of the liquid surface 20b of the main portion 2la by a predetermined height. -35- This paper applies Chinese National Standard (CNS) A4 specifications (210X 297 mm) according to the size (please read the notes on the back before filling this page) Order. 1 Printed by the Central Standards Bureau of the Ministry of Economic Affairs B7 V. Description of the invention (33) The above measurement Shao 25 has a filter paper 2 7, a support cylinder 28, a non-woven fabric 29 attached to the bottom of the support cylinder 28, and a weight 30. The measurement unit 25 sequentially loads the filter paper 27 and the support cylinder 28 (that is, the non-woven fabric 29) on the glass filter 24, and simultaneously supports the weight 30 on the inside of the cylinder 28 (that is, the non-woven fabric 29). The diameter of the glass breaking filter 24 is 70 mm. The inner diameter of the support cylinder 28 is 55 mm. The position of the filter paper 27 is set to a position equal to the liquid surface 20a of the side pipe portion 21b after the measurement stage 22 is loaded with the measurement unit 25. Furthermore, a predetermined amount of a water-absorbing agent is uniformly spread on the nonwoven fabric 29. The weight of the heavy clock was adjusted to uniformly apply a load of 20 g / cm2 on a non-woven fabric of 29 (water-absorbing agent). The diffusion absorption ratio of the water-absorbing agent was measured with the measurement device constructed as described above. The measurement method is explained below. First, a predetermined amount of artificial urine (composition: urea 9% by weight, NaCl 0.8% by weight, CaCl2 0.1% by weight, MgS04 0.1% by weight) 20 is prepared in advance, and the artificial urine 20 is injected into the communicating portion. Next, predetermined preparation operations such as attaching a stopper 26 to the opening portion 2 lc of the buret 21 and setting the measurement stage 22 to a predetermined height are performed. Next, a filter paper 27 is placed on a glass filter material 24 in the center of the measurement table 22. On the other hand, at the same time as these loading operations, 0.2 g of a water-absorbing agent is evenly spread inside the support cylinder 9 (i.e., on the non-woven fabric 29), and a weight 30 is loaded on the water-absorbing agent. Next, the above-mentioned support cylinder 28 having been loaded with the non-woven fabric 29 (i.e., the water-absorbing agent) and the weight 30 is loaded on the filter paper 27 so that the center portion thereof coincides with the center portion of the sloped glass filter material 24. Starting from the time when the support cylinder 2 8 is loaded on the paper 27, after 30 minutes -36- This paper size applies to China National Standard (CMS) A4 (210X297 mm) (Please read the note on the back first ($ Items refill this page)
經濟部中央標隼局負工消費合作杜印製 4193 82 at _B7 五、發明説明(34) 讀取滴定管2 1刻度以測定吸水劑所吸取之人工尿20之體 .VKml)。其次,從上述體積ν!以下式: 吸水劑在加壓下之吸水倍率(ml/g) =體積V! (ml)/吸水劑之重量(g) 算出吸水開始起3 0分鐘後吸水劑在加壓下之吸水倍率 (ml/g)。 (e)吸收性物品(或吸收體)之擴散吸收倍率 首先,茲參照圖5及圖6於下簡單地説明測定吸收性物品 (或吸收體,以下爲方便起見在此攔中二者合併均記爲吸 收性物品)之擴散吸收倍率時所用之測定裝置。又,爲便 於説明,與上述擴散吸收倍率所用之測定裝置具有相同機 能之構件以同一符號記述,並省略其説明。 如圖5所示,測定裝置係由天平1、容器2、外氣吸入管3 、導管4、直徑120mm之玻璃濾材6、與裝載於玻璃濾材6 上之測定部15所構成。如圖6所示,上述測定部15具有濾 紙7、薄片8、支持方筒19及重錘11。又,不具有上述之 之金屬網。 測定部15於玻璃濾材6依序裝載濾紙7、薄片8及支持方 筒9 ’且支持方筒19内部裝载重錘u。薄片8由聚對苯二 曱酸乙二醇酯(PET)所構成,中央部形成具有12 5mmx 100mm之長方形開口部之厚〇lmrn之矩形狀。支持方筒 I9之内邵尺寸爲l〇〇minx loomm。支持方筒19之内部裝 載預定之大小之吸收性物品。測定裝置之其他構造與上述 擴散吸收倍率之測定中所用之測定裝置相同。 __-37- 本紙張尺度適用中國國家操準(CNS ) A4規格(210X297公釐〉 (請先聞讀背面之注意事項再填寫本頁)Produced by DuPont 4193 82 at _B7, Central Labor Bureau of Ministry of Economic Affairs, Consumption Cooperation V. Description of the Invention (34) Read the burette 2 1 scale to determine the volume of artificial urine 20 (VKml) absorbed by the water absorbent. Next, from the above volume ν !, the following formula: The water absorption ratio of the water-absorbing agent under pressure (ml / g) = volume V! (Ml) / weight of the water-absorbing agent (g) Calculate the water-absorbing agent at 30 minutes after the start of water absorption. Water absorption rate under pressure (ml / g). (e) Diffusion absorption ratio of the absorbent article (or absorbent body) First, the measurement of the absorbent article (or absorbent body) is briefly described below with reference to FIGS. 5 and 6. They are all recorded as absorbent articles. In addition, for convenience of explanation, members having the same functions as those of the measurement device used for the above-mentioned diffusion absorption magnification are described by the same reference numerals, and descriptions thereof are omitted. As shown in FIG. 5, the measurement device is composed of a balance 1, a container 2, an external air suction pipe 3, a duct 4, a glass filter material 6 having a diameter of 120 mm, and a measurement unit 15 mounted on the glass filter material 6. As shown in FIG. 6, the measurement unit 15 includes a filter paper 7, a sheet 8, a support cylinder 19, and a weight 11. It does not have the above-mentioned metal mesh. The measurement unit 15 loads the filter paper 7, the sheet 8, and the support cylinder 9 'in order on the glass filter material 6, and the weight u is loaded inside the support cylinder 19. The sheet 8 is made of polyethylene terephthalate (PET), and the central part is formed in a rectangular shape having a rectangular opening with a thickness of 125 mm × 100 mm and a thickness of 0 lmrn. Support the square tube I9 Shao size is 100minx loomm. The inside of the square tube 19 is supported to load an absorbent article of a predetermined size. The other structures of the measuring device are the same as those used in the above-mentioned measurement of the diffusion absorption ratio. __- 37- This paper size applies to China National Standards (CNS) A4 specifications (210X297 mm) (Please read the precautions on the back before filling this page)
4193 82 A7 ___ B7 五、發明説明(35 ) 〜- 以構造如上之測定裝置測量吸水性物品之擴散吸收倍 。測定方法説明如下。 ” 首先’使吸收性物品形成1 〇〇mm X 100mm之大小。又 ,進行預定之之準備動作。其次,將濾紙7裝载於破璃濾 材6上,在濾紙7上裝載薄片8,並使其開口部位於破璃濾 材6之中心部^其次’將支持方筒19裝载在薄片8上,並 使其中心部與玻璃濾材6之中心部一致。 其後’在支持方筒19内部(即薄片8上)裝載吸收性物品 並在此吸收性物品上裝载重錘1丨。又,吸收性物品及重鐘 11之裝載動作迅速進行。 從在薄片8上裝载吸收性物品之時開始,隔30分鐘或6〇 分鐘後用天平1測量吸收性物品所吸收之生理食鹽水丨2之 重量W3(g)。又,如圖7所示,生理食鹽水12在通過薄片8 之開口.邵之後,在吸收性物品之橫方向上大致均勻地擴散 ,同時被吸收性物品吸收。 其次,從上述重量W3以下式: 吸收性物品之擴散吸收倍率(g/g) =重量Wdg)/吸收性物品之重量(g) 經濟部中央標準局員工消費合作社印製 算出吸水開始起3 0分鐘或60分鐘後之吸收性物品之擴散 吸收倍率(g/g)。 又,實施例1〜6及比較例1〜3中所用之架橋劑係以下示 之製備法製備而得。 [製備法1] 在裝有撥拌機、附冷卻管之水分離管、溫度計及空氣吹 • 38 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐〉 經濟部中央標準局貞工消費合作社印製 4 193 82 A7 B7 五、發明説明(36) 入管之4個1L燒瓶中,加入四羥甲基丙烷13 4g、丙烯酸 23 8g、甲苯170g、P—甲苯磺酸24g及對苯二酚〇.6g,邊 吸入空氣邊將上述燒瓶加熱至130°C。使反應生成水藉與 甲苯之共沸脱水館出系統之外,進行預定時間之反應。 反應結束後,將反應液移至分液漏斗,以1 0重量 %N aOH水500g及5重量%NaOH水300g中和未反應丙稀· 酸,分層之,其後在有機層中添加對苯二酚單甲基酯 0-06g,在減壓下餾去甲苯,得到反應生成物。 用氣體層析(GC)及凝膠滲透層析(GPC)分析的結果,得 知相當於架橋劑主成分之三羥甲基丙烷三丙晞酸、三羥甲 基丙烷二丙烯酸及三羥甲基丙烷二丙烯酸(β -丙缔醯基氧 基丙酸酯)與相當於高沸點成分之具有三羥甲基丙烷骨架2 個以上之化合物之重量比爲84/16。即,經上述反應及操 作,得到架橋劑主成分與高沸點成分之重量比爲84/16之 架橋劑Α。 [製備法2] 除了反應時間較製備法1之反應時間長之外,進行與製 備法1相同之反應及操作,得到架橋劍主成分與高滞點成 分之重量比爲78/22之架橋劑B。 [製備法3] 除了反應時間較製備法1之反應時間短之外,進行與製 備法1相同之反應及操作,得到架橋劑主成分與高沸點成 分之重量比爲89/112之架橋劑C。 -39- 本紙張尺度適用t國國家標準(CNS ) Λ4规格(210X297公釐) (請先閲讀背面之注意事項再見寫本頁)4193 82 A7 ___ B7 V. Description of the invention (35) ~-Measure the diffusion absorption factor of the absorbent article with the measuring device constructed as above. The measurement method is explained below. "First, the absorbent article is formed to a size of 100 mm X 100 mm. Further, a predetermined preparation operation is performed. Next, a filter paper 7 is loaded on the glass-breaking filter material 6, a sheet 8 is loaded on the filter paper 7, and The opening is located at the center of the broken glass filter 6 ^ Secondly, the support square tube 19 is loaded on the sheet 8 so that the center is consistent with the center of the glass filter 6. Then, 'inside the support square 19 ( That is, on the sheet 8), the absorbent article is loaded, and the weight 1 is loaded on the absorbent article. The loading operation of the absorbent article and the weight clock 11 is performed quickly. From the time when the absorbent article is loaded on the sheet 8 After 30 minutes or 60 minutes, the weight W3 (g) of the physiological saline solution 2 absorbed by the absorbent article was measured with the balance 1. Also, as shown in FIG. 7, the physiological saline solution 12 was passed through the opening of the sheet 8. After Shao, it diffuses approximately evenly in the transverse direction of the absorbent article and is absorbed by the absorbent article. Secondly, from the above weight W3, the following formula: Diffusion absorption ratio (g / g) of absorbent article = weight Wdg) / absorption Weight of sex articles (g) Central Standard of the Ministry of Economic Affairs The employee consumer cooperative printed and calculated the diffusion absorption ratio (g / g) of the absorbent article 30 minutes or 60 minutes after the start of water absorption. In addition, the bridging agents used in Examples 1 to 6 and Comparative Examples 1 to 3 were as follows [Preparation Method 1] In a water separator tube equipped with a stirrer, a cooling tube with a cooling tube, a thermometer, and an air blower • 38-This paper size applies to the Chinese National Standard (CNS) A4 (210X297) Printed by Zhengong Cooperative Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 4 193 82 A7 B7 V. Description of the invention (36) Into the 4 1L flasks, add 13 4g of tetramethylolpropane, 23 8g of acrylic acid, 170g of toluene, P —Toluenesulfonic acid 24g and hydroquinone 0.6g, while inhaling the air, heat the flask to 130 ° C. The reaction generated water is discharged out of the system by azeotropic dehydration with toluene, and the reaction is performed for a predetermined time. After the reaction was completed, the reaction solution was transferred to a separating funnel, and 500 g of 10% by weight NaOH water and 300g of 5% by weight NaOH water were used to neutralize unreacted acrylic acid. The layers were separated, and then added to the organic layer. 0-06g of hydroquinone monomethyl ester, toluene was distilled off under reduced pressure, The reaction product was obtained. As a result of gas chromatography (GC) and gel permeation chromatography (GPC) analysis, it was found that trimethylolpropane tripropionate and trimethylolpropane di which are the main components of the bridging agent The weight ratio of acrylic acid and trimethylolpropane diacrylic acid (β-propenyloxypropionate) to two or more compounds having a trimethylolpropane skeleton corresponding to a high boiling point component is 84/16. That is, After the above reaction and operation, a bridging agent A having a weight ratio of the main component of the bridging agent to the high boiling point component of 84/16 is obtained. [Preparation Method 2] Except that the reaction time is longer than the reaction time of Preparation Method 1, The same reaction and operation as in Method 1, a bridging agent B having a weight ratio of 78/22 of the main component of the bridging sword and the high stagnation point component was obtained. [Preparation method 3] Except that the reaction time is shorter than the reaction time of preparation method 1, the same reaction and operation as in preparation method 1 are performed to obtain a bridging agent C with a weight ratio of the main component of the bridging agent to the high boiling point component of 89/112 . -39- This paper size is applicable to the national standard (CNS) Λ4 specification (210X297 mm) (Please read the precautions on the back before seeing this page)
419382 a? Β7 五、發明説明(37) 經濟部中夬標率局員工消費合作社印製 [製備法4] 除了反應時間較製備法2之反應時間長之外,進行與製 備法2相同之反應及操作’得到架橋劑主成分與高沸點成 分之重量比爲72/28之比較用架橋劑。 其次,用上述製備法1〜製備法4得到的架橋劑進行親水 性不飽和單體之水溶液聚合。 [實施例1] 使架橋劑A 4.8g及做爲分散劑之聚氧乙晞山梨糖醇酐單 硬脂酸酯1. Og溶解於做爲親水性不飽和單體之丙烯鹼 4 14g中,再加入做爲親水性不飽和單體之丙晞酸鈉之37 重量%水溶液4 3 8 2 g及離子交換水5 5 1 g,得到反應液。其 次,將上述反應液供給到有2根Σ型葉片之内容積l〇L之附 外套不鏽鋼製雙腕型捏和機加蓋形成之反應器中,將反應 液保持於30°C並將系統置換成氮氣。接著,將反應器保持 於30°C並繼續攪拌,加入過硫酸鈉2.40g及L-抗壞血酸 0.1 2 g使之開始聚合。其後,聚合開始後今〇分鐘後取出含 水凝膠狀聚合物。 將所得含水凝膠狀聚合物細分成細分化物,將此細分化 物於50號篩孔之金屬網上展開,在150 °C下以熱風乾燥9〇 分鐘°其次,用震動磨碎機使乾燥物粉碎,再以20號篩孔 之金屬網分級,得到含水率4 %、平均粒徑3 5 0 μιη、且粒 徑在106μιη以下之粒子之比例爲3重量。/。之不定形破碎狀 之吸水性樹脂(即吸水劑前驅體)。所得之吸水劑前驅體之 以茶袋法測得之吸水倍率及水可溶成分量(以下簡稱結果) -40- 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁)419382 a? Β7 V. Description of the invention (37) Printed by the Consumers' Cooperative of the Bureau of Standards, Ministry of Economic Affairs [Preparation Method 4] Except that the reaction time is longer than that of Preparation Method 2, the same reaction as Preparation Method 2 is performed And operation 'to obtain a bridging agent for comparison in which the weight ratio of the main component of the bridging agent to the high boiling point component is 72/28. Next, an aqueous solution of a hydrophilic unsaturated monomer is polymerized by using the bridging agent obtained in the above-mentioned production methods 1 to 4. [Example 1] 4.8 g of bridging agent A and 1.0 g of polyoxyethyl sorbitan monostearate as a dispersant were dissolved in 14 g of propylene base 4 as a hydrophilic unsaturated monomer, Furthermore, 4 3 8 2 g of a 37% by weight aqueous solution of sodium propionate as a hydrophilic unsaturated monomer and 5 5 1 g of ion-exchanged water were added to obtain a reaction solution. Next, the above reaction solution was supplied to a reactor formed by a stainless steel double-wrist kneader with a cover of 10 liters and an inner volume of 10 Σ blades. The reaction solution was maintained at 30 ° C and the system was maintained. Replace with nitrogen. Next, the reactor was kept at 30 ° C and stirring was continued, and 2.40 g of sodium persulfate and 0.1 2 g of L-ascorbic acid were added to start polymerization. Thereafter, the hydrogel-like polymer was taken out 10 minutes after the start of the polymerization. The obtained hydrogel-like polymer was subdivided into finely divided products, and this finely divided product was unfolded on a metal mesh of No. 50 sieve, and dried with hot air at 150 ° C for 90 minutes. Secondly, the dried product was shaken with a vibration mill Crush and classify with a metal mesh with No. 20 sieve to obtain a weight ratio of 3% with a water content of 4%, an average particle size of 350 μm, and a particle size below 106 μm. /. An irregularly shaped water-absorbent resin (ie, a water-absorbent precursor). The water absorption ratio of the obtained water-absorbent precursor measured by the tea bag method and the amount of water-soluble components (hereinafter referred to as the result) -40- This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) (Please read first (Notes on the back then fill out this page)
訂 .1. 經濟,部中央標準局®C工消費合作社印裂 4 82 at Β7 五、發明説明(38 ) 併記於表1。 [實施例2 ] 除了以架橋劑B 4.8 g取代實施例1中之架橋劑A之外, 進行與實施例1相同之反應及操作,得到含水率5°/。、平均 粒^300μιη、且粒徑在106 μπι以下之粒子之比例爲6重量 °/〇之不定形破碎狀之吸水性樹脂(即吸水劑前驅體)。所得 之結果併記於表1 β ' [實施例3] 除了以架橋劑C 4.8g取代實施例1中之架橋劑Α之外, 進行與實施例1相同之反應及操作,得到含水率8 %、平均 粒徑4 8 0 μιη、且粒徑在1 06 μιη以下之粒子之比例爲〇. 5重 量%之不定形破碎狀之吸水性樹脂(即吸水劑前驅體)。所 得之結果併記於表1 β [實施例4 ] 除了將實施例1中之架橋劑Α之用量從4.8g變更到6.8g 之外,進行與實施例1相同之反應及操作,得到含水率5% 、平均粒徑3 80 μιη、且粒徑在1 06 μπι以下之粒子之比例 爲2重量%之不定形破碎狀之吸水性樹脂(即吸水劑前驅體 )。所得之結果併記於表1。 [實施例5 ] 除了將實施例1中之架橋劑Α之用量從4.8 g變更到1 3 · 6 g 之外,進行與實施例1相同之反應及操作,得到含水率4% 、平均.粒徑400μιη、且粒徑在1 〇6 μιη以下之粒子之比例 爲1重量%之不定形破碎狀之吸水性樹脂(即吸水劑前驅體 -41 - 本紙張Λ度逋用中國國家標準(CNS ) Α4%格(210X297公釐) (請先鬩讀背面之注意事項再填寫本頁)Order .1. Economy, Central Bureau of Standards, Ministry of Industry, C, and Industrial Cooperative Cooperatives 4 82 at Β7 V. Description of Invention (38) and recorded in Table 1. [Example 2] Except replacing the bridging agent A in Example 1 with 4.8 g of bridging agent B, the same reaction and operation as in Example 1 were performed to obtain a water content of 5 ° /. An irregularly shaped, water-absorbent resin (that is, a water-absorbing agent precursor) having an average particle size of 300 μm and a particle size of 106 μm or less is 6 weight ° / 〇. The obtained results are also shown in Table 1. β '[Example 3] Except replacing the bridging agent A in Example 1 with 4.8 g of bridging agent C, the same reaction and operation as in Example 1 were performed to obtain a water content of 8%, An irregularly shaped, water-absorbent resin (ie, a water-absorbing agent precursor) having an average particle diameter of 4 0 0 μηη and a proportion of particles having a particle diameter of 1 06 μιη or less is 0.5% by weight. The results obtained are also shown in Table 1. β [Example 4] Except that the amount of the bridging agent A in Example 1 was changed from 4.8 g to 6.8 g, the same reaction and operation as in Example 1 were performed to obtain a water content of 5 %, An average particle size of 3 80 μm, and a proportion of particles with a particle size of 1 06 μm or less is 2% by weight of an amorphous and broken water-absorbing resin (that is, a water-absorbing agent precursor). The results obtained are shown in Table 1. [Example 5] Except that the amount of the bridging agent A in Example 1 was changed from 4.8 g to 1 3 · 6 g, the same reaction and operation as in Example 1 were carried out to obtain a water content of 4% and an average particle size. An irregularly shaped, water-absorbent resin having a diameter of 400 μιη and a particle size of less than 106 μιη is 1% by weight (that is, a water-absorbing agent precursor -41-This paper uses the Chinese National Standard (CNS) Α4% grid (210X297 mm) (Please read the notes on the back before filling in this page)
經濟部中央標準局員工消費合作社印製 4,9382 Λ? Β7 五、發明説明(39) )。所得之結果併記於表1。 [實施例6] 使架橋劑A 6· 8g及做爲分散劑之部分皀化聚乙烯醇2.3g 溶解於做爲親水性不飽和單體之丙烯酸29g中,再加入做 爲親水性不飽和單體之丙烯酸鈉之3 7重量%水溶液4 3 8 2 g 及離子交換水2 8 3 g,得到反應液。其後進行與實施例1相 同之反應及操作,得到含水率8%、平均粒徑520μιη、且 粒徑在106μιη以下之粒子之比例爲〇重量%之不定形破碎 狀之吸水性樹脂(即吸水劑前驅體)。所得之結果併記於表 1 0 [比較例1] 用比較用架橋劑4.8 g取代實施例1中之架轎劑a之外, 進行與實施例1相同之反應及操作,得到含水率5%、平均 粒徑3 40 μιη、且粒徑在1 06μιη以下之粒子之比例爲5重量 %之不定形破碎狀之比較用吸水性樹脂(即比較用吸水劑 前驅體)。所得之結果併記於表1。 -42- 本紙張跋適用中國國家椟準(Α4规格(2ΐ〇χ297公釐) (請先鬩讀背面之注意事項再填寫本頁)Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 4,9382 Λ? Β7 V. Description of Invention (39)). The results obtained are shown in Table 1. [Example 6] 6.8 g of bridging agent A and 2.3 g of partially fluorinated polyvinyl alcohol as a dispersant were dissolved in 29 g of acrylic acid as a hydrophilic unsaturated monomer, and then added as a hydrophilic unsaturated monomer A 37% by weight aqueous solution of sodium acrylate 4 3 8 2 g and ion-exchanged water 2 8 3 g were obtained to obtain a reaction solution. Thereafter, the same reaction and operation as in Example 1 were carried out to obtain an irregularly shaped water-absorbent resin (that is, water absorbing) having a water content of 8%, an average particle diameter of 520 μιη, and a proportion of particles having a particle diameter of 106 μιη or less of 0% by weight Agent precursor). The obtained results are also shown in Table 10. [Comparative Example 1] The same reaction and operation as in Example 1 were carried out except that 4.8 g of the bridging agent for comparison was used instead of the sedan agent a in Example 1. The water content was 5%, A comparatively water-absorbent resin (that is, a water-absorbing agent precursor for comparison) having an average particle size of 3 40 μm and a proportion of particles having a particle size of 1 06 μm or less is 5% by weight. The results obtained are shown in Table 1. -42- This paper is applicable to the Chinese National Standard (A4 size (2ΐ〇χ297mm) (Please read the precautions on the back before filling in this page)
4 卬3824 卬 382
[實施例7] 使實施例1中得到之吸水劑前驅體1〇〇單位重量與做爲第 1表面架橋劑之甘油(SP値:δ=16 5(cal/cm3)1/2)〇 5單位 重量、做爲第2表面架橋劑之乙二醇二縮水甘油醚(81>値: S=10.2(cal/cm3)1/2)0.1單位重量、水3單位重量及異丙 醇1單位重量所構成之表面架橋劑混合。在2〇〇ΐ下加熱 處理所得之混合物40分鐘,以得到吸水劑。所得之吸水劑 之以茶袋法測得之吸水倍率、水可溶成分量、擴散吸收倍 率及加壓下之吸水倍率(以下簡稱結果)併記於表2。 [實施例8 · 9] 除了依序使用實施例4 .實施例5所製得之吸水劑前驅體 -43 - 本紙張尺度適用中國國家標準(CNS ) A4規格(2i〇x;297公釐) 419382 λ7 ______Β7 五、發明説明(4!) 經濟部中央標準局®:工消費合作社印製 100單位重量以外,進行與實施例7相同之加埶處理,各 得到對應的吸水劑。所得之結果併記於表2。 [比較例4 · 5 ] 二除了依序使用比較例1 .比較例3所製得之比較用吸水劑 前驅體100單位重量以外,進行與實施例7相同之加熱處 理,各得到對應的吸水劑。所得之結果併記於表2。 [比較例6] 以部分中和及架橋之澱粉—丙烯酸接枝聚合物(商品名稱 :桑威特(SUNWET)IM3900P ;霍奇士西蘭尼斯 (Hoechest Celanese)股份有限公司製)爲比較用吸水劑 。所得之結果併記於表2。 [比較例7] 以部分中和及架橋之丙烯酸聚合物(商品名稱:戴亞威 特(DIAWET)US2-45Z ;三菱油化股份有限公司製)爲比 較用吸水劑。所得之結果併記於表2。 [比較例8] 以部分中和及架橋之丙晞酸聚合物(商品名稱:亞誇奇 普(AQUAKEEP)SA-60 ;住友精化股份有限公司製)爲比 較用吸水劑。所得之結果併記於表2。 [比較例9] 從優妮嬌盟股份有限公司製之稱爲滿意寶寶(γ ί —示。 3,商品名)之紙尿布中取出高分子吸水劑,以之爲比較 用吸水劑。所得之結果併記於表2。 -44 - 本紙張Λ度適用中國國家標準(CNS ) Α4規格(210x297公瘦〉 (請先聞讀背面之注意事項再填寫本頁)[Example 7] The unit weight of the water-absorbing agent precursor obtained in Example 1 and glycerin as the first surface bridging agent (SP 値: δ = 16 5 (cal / cm3) 1/2) were used. Unit weight, ethylene glycol diglycidyl ether as the second surface bridging agent (81 > 値: S = 10.2 (cal / cm3) 1/2) 0.1 unit weight, 3 unit weight of water and 1 unit weight of isopropyl alcohol The resulting surface bridging agent is mixed. The resulting mixture was heat-treated at 200 ° C for 40 minutes to obtain a water-absorbing agent. The water absorption ratio, water-soluble content, diffusion absorption ratio and water absorption ratio under pressure (hereinafter referred to as results) of the obtained water-absorbing agent measured by the tea bag method are shown in Table 2. [Examples 8 · 9] In addition to sequentially using Example 4. The water-absorbing agent precursor -43 prepared in Example 5-This paper size applies the Chinese National Standard (CNS) A4 specification (2i0x; 297 mm) 419382 λ7 ______ Β7 V. Description of the invention (4!) Except for 100 unit weight printed by the Ministry of Economic Affairs Central Standard Bureau®, the same processing as in Example 7 was performed to obtain the corresponding water-absorbing agent. The results obtained are shown in Table 2. [Comparative Examples 4 and 5] Except that 100 units of the comparative water-absorbing agent precursor prepared in Comparative Example 3 were used in sequence, the same heat treatment as in Example 7 was performed, and each corresponding water-absorbing agent was obtained. . The results obtained are shown in Table 2. [Comparative Example 6] A partially neutralized and bridged starch-acrylic acid graft polymer (trade name: SUNWET IM3900P; manufactured by Hoechest Celanese Co., Ltd.) was used for comparison. Agent. The results obtained are shown in Table 2. [Comparative Example 7] A partially neutralized and bridged acrylic polymer (trade name: DIAWET US2-45Z; manufactured by Mitsubishi Petrochemical Co., Ltd.) was used as a water-absorbing agent for comparison. The results obtained are shown in Table 2. [Comparative Example 8] A partially neutralized and bridged malic acid polymer (trade name: AQUAKEEP SA-60; manufactured by Sumitomo Chemical Co., Ltd.) was used as a water-absorbing agent for comparison. The results obtained are shown in Table 2. [Comparative Example 9] A polymer water-absorbing agent was taken out of a paper diaper called Satisfied Baby (γ ί — shown. 3, trade name) made by Unicorn Co., Ltd., and used as a water-absorbing agent for comparison. The results obtained are shown in Table 2. -44-This paper applies Chinese National Standard (CNS) Α4 size (210x297 male thin) (Please read the precautions on the back before filling this page)
訂 419382 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明(42419382 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of Invention (42
[實施例10] 將實施例7中製得之吸水劑75單位重量及做爲親水性纖 維之木材粉碎紙漿25單位重量以混合器進行乾式混合。將 所仔之说合物成形成l〇〇mm X 100mm之纖維網,對該纖 維網施加2kg/cm2之壓力1分鐘之後,得到單位面積之重 量約0.035g/cm2之吸收體所構成之吸收性物品。所得之 吸收性物品之6 0分鐘後之擴散吸收倍率(以下簡稱結果)併 記於表3。 [實施例1 1 . 12] 除了依序使用實施例8,實施例9所製得之吸水劑取代實 -45 - 本紙張度逋用中國國家標準(CNS > A4规格(210X297公釐) (請先閔讀背面之注意事項再來寫本頁)[Example 10] 75 unit weight of the water-absorbing agent obtained in Example 7 and 25 unit weight of wood crushed pulp as hydrophilic fibers were dry-blended with a mixer. The said compound was formed into a fiber web of 100 mm X 100 mm, and after applying a pressure of 2 kg / cm2 to the fiber web for 1 minute, an absorption composed of an absorber having a weight per unit area of about 0.035 g / cm 2 was obtained. Sex items. The diffusion absorption ratio (hereinafter referred to as the result) of the obtained absorbent article after 60 minutes is also shown in Table 3. [Example 1 1. 12] In addition to using Example 8 in order, the water-absorbing agent prepared in Example 9 was used instead of solid-45-This paper uses the Chinese national standard (CNS > A4 specification (210X297 mm)) ( (Please read the notes on the back before writing this page)
4193 82 A7 B7 五、發明説明(43 ) 施例10中之吸水劑以外,與實施例1 〇同樣地製成吸收體 ,各得到對應的吸收性物品。所得之結果併記於表3。 [比較例1 0〜1 5 ] 除了依序使用比較例4〜比較例9所製得之比較用吸水劑 取代實施例1 0中之吸水劑以外,與實施例1 〇同樣地製成 吸收體’各得到對應的比較用吸收性物品。所得之結果併 記於表3。 經濟部中夬標準局員工消費合作社印製 表3 吸收性物品在60分鐘後之 擴散吸收倍率 (g/g) 實施例1 0 24.7 實施例1 1 25.5 實施例12 25.2 比較例1 0 23.4 比較例11 24.1 比較例12 10.7 比較例13 10.8 比較例1 4 15.8 比較例15 8.6 [實施例13] 將實施例7中製得之吸水劑7 5單位重量及做爲親水性纖 維之木材粉碎紙漿25單位重量以混合器進行乾式混合。其 -46 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X:297公釐) (請先閱讀背面之注意事項再填寫本頁) 訂 419382 五、發明説明(44 ) 次,將所得到的混合物在形成於4〇〇號篩孔(篩孔之大小爲 38μιη)上之網篩(wire screen)上用批次型空氣抄造機進 行空氣抄造,以形成120mmX4 0 0mm大之纖維網。對該 纖維網施加2kg/cm2之壓力5秒,以得到單位面積之重量 約0.047g/cm2之吸收體。 接著,將由液不透過性聚丙烯所構成之具有所謂腿部摺 線(leg gathers)之背面層、上述吸收體及液透過性之由聚 丙烯構成之頂面層用雙面膠依序貼著,同時在此貼著物上 裝設2個所謂固定膠帶,以得到吸收性物品(即紙屎布)。 此吸收性物品之重量爲4 6 g. α 將上述吸收性物品穿著於所謂邱比(Kewpie)洋娃娃(身 長55cm、重量5kg)上,使該洋娃蛙成爲俯臥之狀態之後 ’在吸收性物品及洋娃娃之間,***管子,於相當於人體 排尿的位置上’每隔2 0分鐘每次注入5 〇 m 1之生理食鹽水 ,合計注入250ml。然後’將上述洋娃娃放置於37。匚下16 小時之後,取出吸收性物品。 經濟部中央標率局員工消費合作社印製 在取出之吸收性物品之吸水部分之中央部上,堆積所謂 紙餐巾1 0張,在此等紙餐巾上施加1 〇 k g之荷重1分鐘之後 ’測定該紙餐巾之吸水量(即生理食鹽水從吸收性物品回 流的回流量(g))。所得的結果併記於表4。 [實施例1 4 · 1 5 ] 除了依序使用實施例8 ·實施例9所製得之吸水劑取代實 施例13中之吸水劑以外,進行與實施例13相同的操作, 各仔到對應的吸收性物品。其後,測定來自此等吸收性物 -47- 本紙張尺度適财晒練準(CNS ) A4規格(210X297公系7 4 ^3 62 Λ7 B7 五、發明説明(45 ) 品之生理食鹽水之回流量(g)。所得之結果併記於表4。 [比較例1 6 _ 1 7 ] 除了依序使用比較例4 .比較例5所製得之比較用吸水劑 取代實施例13中之吸水劑以外,進行與實施例13相同的 操作’各得到對應的比較用吸收性物品。其後,測定來自 此等比較用吸收性物品之生理食鹽水之回流量(g)。所得 之結果併記於表4。 表4 回流量(g) 實施例13 3.1 實施例14 2.3 實施例1 5 0.7 比較例16 6.6 比較例17 9.2 (請先聞讀背面之注意事項再填寫本頁) 一羊 JIJ .L * η--訂-- 經濟部中央標準局員工消費合作社印製 從表1〜表4所記載之結果可明顯地看出,本發明之吸水 劑具有擴散吸收倍率高、水可溶成分量少、且用樹脂濃度 向之吸收體所製得之吸收性物品經過長時間之後水性液體 之回流量少、保持非常高之液擴散性及長期安定之吸水量 等優異性能(吸水特性)。 [實施例1 6 ] 使做爲架橋劑之聚乙二醇二丙烯酸酯(環氧乙烷之平均 附加莫耳數8)1 8.49g溶解於做爲單體之丙烯酸鈉(中和率 65莫耳%)之30重量%水溶液55〇〇gt,得到反應液。其 -48 - 本紙張尺度逋用中國國家標準(CNS ) M規格(21〇><297公釐) 經濟部中央標隼局員工消費合作社印製 419382 A7 B7 五、發明説明(46) 次,使該反應液於氮氣氣氛下脱氣30分鐘。其次,將上述 反應液供給到有2根Σ型葉片之内容積10L之附外套不鏽鋼 製雙腕型捏和機加蓋形成之反應器中,將反應液保持於3〇 C並將系統置換成氮氣。接著,繼續攪拌反應液,並加入 過硫酸銨2.3g及L-抗壞血酸0.12g,約1分鐘後開始聚合 。其後,在30°C〜80°C下進行聚合,聚合開始後60分鐘 後取出含水凝膠狀聚合物。 將所得含水凝膠狀聚合物細分成直徑约5mm。將此細分 化後之含水凝膠狀聚合物於50號篩孔之金屬網上展開,在 150°C下以熱風乾燥90分鐘。其次,用震動磨碎機使乾燥 物粉碎,再以20號篩孔之金屬網分級,得到平均粒徑 3 60 μιη、且粒徑在10 6 μιη以下之粒子之比例爲5重量%之 不定形破碎狀之吸水劑前驅體。 使所得之吸水劑前驅體100單位重量與做爲第1表面架橋 劑之甘油(SP値:5=16.5(cal/cm3)1/2)l單位重量·、做爲 第2表面架橋劑之乙二醇二縮水甘油醚(s P値: S=10.2(cal/cm3)1/2)0.05單位重量、水3單位重量及乙醇 1單位重量所構成之表面架橋劑混合。在1 95 °C下加熱處 理上述混合物4 0分鐘,以得到吸水劑。所得之吸水劑之平 均粒徑爲3 6 0 μπι,且粒徑在1 0 6 μιη以下之粒子之比例爲5 重量%。此吸水劑以離心分離法測得之吸水倍率及擴散吸 收倍率(以下簡稱結果)併記於表5。 [實施例17] 使做爲架橋劑之三經甲基丙燒三丙烯酸I旨3.59g溶解於 -49- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閲讀背面之注意事項再填寫本頁)4193 82 A7 B7 5. Description of the invention (43) Except for the water-absorbing agent in Example 10, an absorbent body was prepared in the same manner as in Example 10, and each corresponding absorbent article was obtained. The results obtained are shown in Table 3. [Comparative Example 1 0 to 15] An absorbent body was prepared in the same manner as in Example 10, except that the comparative water absorbing agent prepared in Comparative Example 4 to Comparative Example 9 was used in place of the water absorbing agent in Example 10. 'Each corresponding comparative absorbent article was obtained. The results obtained are shown in Table 3. Printed by the Consumers' Cooperative of the China Standards Bureau of the Ministry of Economic Affairs. Table 3 Diffusion absorption rate (g / g) of absorbent articles after 60 minutes Example 1 0 24.7 Example 1 1 25.5 Example 12 25.2 Comparative Example 1 0 23.4 Comparative Example 11 24.1 Comparative Example 12 10.7 Comparative Example 13 10.8 Comparative Example 1 4 15.8 Comparative Example 15 8.6 [Example 13] The water-absorbing agent 75 obtained in Example 7 was 5 unit weight and 25 units of wood pulverized pulp as hydrophilic fibers The weight is dry-mixed with a mixer. Its -46-This paper size applies Chinese National Standard (CNS) A4 specification (210X: 297 mm) (Please read the precautions on the back before filling out this page) Order 419382 5. Invention Description (44) times, will get The mixture was air-made using a batch-type air-making machine on a wire screen formed on a No. 400 sieve hole (the size of the sieve hole was 38 μm) to form a 120 mm × 400 mm large fiber web. A pressure of 2 kg / cm2 was applied to the fiber web for 5 seconds to obtain an absorbent having a weight per unit area of about 0.047 g / cm2. Next, a back surface layer made of liquid-impermeable polypropylene with so-called leg gathers, the above-mentioned absorbent body, and a liquid-permeable top surface layer made of polypropylene were sequentially attached with double-sided tape. At the same time, two so-called fixing tapes are installed on this sticker to obtain an absorbent article (that is, a paper shit cloth). The weight of this absorbent article is 4 6 g. Α After the above absorbent article is worn on a so-called Kewpie doll (55cm in length and 5kg in weight), the baby frog is placed in a prone position 'in the absorbent article Between the doll and the doll, insert a tube at a position corresponding to the human body's urination, and inject 50 ml of physiological saline solution every 20 minutes for a total of 250 ml. Then 'place the aforementioned doll at 37. After holding for 16 hours, remove the absorbent article. Printed on the central part of the absorbent part of the absorbent article taken out by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, 10 sheets of so-called paper napkins are stacked, and a load of 10 kg is applied to these paper napkins for 1 minute. The amount of water absorbed by the paper napkin (ie, the return flow of physiological saline from the absorbent article (g)). The results obtained are shown in Table 4. [Example 1 4 · 1 5] The same operation as in Example 13 was performed except that the water absorbing agent prepared in Example 8 and Example 9 was used instead of the water absorbing agent in Example 13, in order. Absorbent articles. After that, the absorbent material from these papers was measured-47- This paper is sized to fit the financial standards (CNS) A4 (210X297) 7 4 ^ 3 62 Λ7 B7 V. Description of physiological saline solution (45) Return flow (g). The results obtained are also recorded in Table 4. [Comparative Examples 1 6 _ 1 7] Except using Comparative Example 4 sequentially. The comparative water absorbing agent prepared in Comparative Example 5 replaced the water absorbing agent in Example 13 Other than that, the same operation as in Example 13 was performed to obtain corresponding comparative absorbent articles. Thereafter, the return flow rate (g) of physiological saline solution from these comparative absorbent articles was measured. The results obtained are recorded in the table. 4. Table 4 Return Flow (g) Example 13 3.1 Example 14 2.3 Example 1 5 0.7 Comparative Example 16 6.6 Comparative Example 17 9.2 (Please read the precautions on the back before filling out this page) Yiyang JIJ .L * η--Order-Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. From the results described in Tables 1 to 4, it is obvious that the water-absorbing agent of the present invention has a high diffusion absorption rate, a small amount of water-soluble components, And the absorbent article made with the resin concentration of the absorbent body after long After a short period of time, the aqueous liquid has a low flow rate, maintains a very high liquid diffusivity, and has a long-term stable water absorption capacity. (Example 1 6) Polyethylene glycol diacrylate as a bridging agent ( The average additional mole number of ethylene oxide 8) 1 8.49g was dissolved in a 30% by weight aqueous solution 5500gt of sodium acrylate (neutralization ratio 65 mole%) as a monomer to obtain a reaction solution. -48 -This paper size uses Chinese National Standard (CNS) M specifications (21〇 > < 297 mm) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 419382 A7 B7 V. Description of the invention (46) times The reaction solution was degassed in a nitrogen atmosphere for 30 minutes. Next, the above reaction solution was supplied to a reactor formed by a stainless steel double-wrist kneader with a cover and an inner volume of 10 L having two Σ-shaped blades, and the reaction was performed. The solution was maintained at 30 ° C and the system was replaced with nitrogen. Next, the reaction solution was continuously stirred, and 2.3 g of ammonium persulfate and 0.12 g of L-ascorbic acid were added, and polymerization was started after about 1 minute. Thereafter, the temperature was changed from 30 ° C to 80 ° C. Polymerization was performed at ° C, and water was taken out 60 minutes after the start of polymerization Gel-like polymer. The obtained hydrogel-like polymer was subdivided into a diameter of about 5 mm. The hydrogel-like polymer after this subdivision was spread on a metal mesh with a mesh size of 50, and heated at 150 ° C with hot air. Dry for 90 minutes. Secondly, pulverize the dried material with a vibrating mill and classify it with a metal mesh of No. 20 sieve to obtain an average particle size of 3 60 μm and a particle size of 10 6 μm or less. The proportion is 5 weight. % Of amorphous shaped broken water-absorbing agent precursor. 100 unit weight of the obtained water-absorbing agent precursor and glycerin (SP 値: 5 = 16.5 (cal / cm3) 1/2) l unit weight as the first surface bridging agent, and B as the second surface bridging agent A surface bridging agent composed of diol diglycidyl ether (s P 値: S = 10.2 (cal / cm3) 1/2) 0.05 unit weight, 3 unit weight of water, and 1 unit weight of ethanol. The mixture was heat-treated at 1 95 ° C for 40 minutes to obtain a water-absorbing agent. The average particle size of the obtained water-absorbing agent was 360 μm, and the proportion of particles having a particle size of 106 μm or less was 5 wt%. The water absorption ratio and diffusion absorption ratio (hereinafter referred to as the results) of this water absorbing agent measured by the centrifugal separation method are shown in Table 5. [Example 17] 3.59 g of methyltrimethylpropanetriacrylic acid I as a bridging agent was dissolved in -49- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) (please read the back first) (Notes for filling in this page)
^ 82 A7 _______B7 五、發明説明(47 ) 丙烯酸鈉(中和率75莫耳%)之3 9重量%水溶液5 5 00 g中, 得到反應液。其次,使該反應液於氮氣氣氛下脱氣3〇分鐘 。其次’將上述反應液供给到與實施例i 6之反應器相同之 反應器中,將反應液保持於3 〇。(:並將系統置換成氮氣。接 著,繼續攪拌反應液,並加入過硫酸銨24g&L_抗壞血 酸0· 12g,約1分鐘後開始聚合。其後,在3〇°c〜80。(:下 進行聚合,聚合間始後60分鐘後取出含水凝膠狀聚合物。 將所得含水凝膠狀聚合物細分成直徑約 5 mra。將此細分 化後之含水凝膠狀聚合物於5 〇號篩孔之金屬網上展開,在 150°C下以熱風乾燥90分鐘。其次,用震動磨碎機使乾燥 物粉碎’再以2 0號篩孔之金屬網分級,得到平均粒徑 4 0 0 μπι、且粒徑在1 〇 6 μιη以下之粒子之比例爲5重量%之 不定形破碎狀之吸水劑前驅體。 經濟部中央標準局貝工消費合作社印製 使所得之吸水劑前驅體1〇〇單位重量與做爲第1表面架橋 劑之乙二醇(SP 値:S=14.6(cal/cm3)1/2)0.5 單位重量、 做爲第2表面架橋劑之甘油聚縮水甘油醚(s p値: 3=10.8(cal/cm3)1/2)〇_l單位重量、水3單位重量及乙醇1 單位重里所構成之表面架橋劑混合。在195°C下加熱處理 上述混合物4 0分鐘,以得到吸水劑。所得之吸水劑之平均 粒徑爲400μπι,且粒徑在ΐ〇6μπι以下之粒子之比例爲3重 量%。此吸水劑之結果併記於表5 ^ [實施例1 8 ] 使做爲架橋劑之Ν,Ν,-亞甲雙(甲基)丙烯醯胺2 35g溶解 於丙晞酸鈉之20重量。/〇水溶液5500g中,得到反應液。其 _____ -50- 本紙張尺度適用t國國家標準(CNS ) A4規格(210X297公釐) ”93 82 at B7 五、發明説明(48 ) 次,使該反應液於氮氣氣氛下脱氣30分鐘。其次,將上述 反應液供給到與實施例16之反應器相同之反應器中,將反 應液保持於30°C並將系統置換成氮氣。接著,繼續攪拌反 應液,並加入過硫酸銨1.5g及L-抗壞血酸0.07g,約1分 鐘後開始聚合。其後,在30 X:〜80。《:下進行聚合,聚合 開始後60分鐘後,再加入碳酸鈉中和劑606· 7g並攪拌之 後,取出含水凝膠狀聚合物。 所得含水凝膠狀聚合物之中和率爲75莫耳%,將之細分 成.直徑約5 mm ^將此細分化後之含水凝膠狀聚合物於5〇 號篩孔之金屬網上展開,在15〇。(:下以熱風乾燥90分鐘。 其次,用震動磨碎機使乾燥物粉碎,再以20號篩孔之金屬 網分級,得到平均粒徑3 9 0μιη、且粒徑在1 06μπι以下之 粒子之比例爲4重量%之不定形破碎狀之吸水劑前驅體。 經濟部中央標準局員工消費合作社印製 使所得之吸水劑前驅體100單位重量與做爲第1表面架橋 劑之丙二醇(SP 値:S=12.6(cal/cm3)1/2)0.75 單位重量、 做爲第2表面架橋劑之丙二醇二縮水甘油醚(§ p値: S=10.1(cal/cm3)1/2)〇.〇5單位重量、水3單位重量及乙醇 0.75單位重量所構成之表面架橋劑混合。在i95»c下加熱 處理上述混合物40分鐘,以得到吸水劑。所得之吸水劑之 平均粒徑爲3 8 0μπι,且粒徑在1 〇 6μιη以下之粒子之比例 爲3重量% ^此吸水劑之結果併記於表5。 [比較例18] 使做爲架橋劑之三羥甲基丙烷三丙烯酸酯718g溶解於 丙烯酸鈉(中和率75莫耳%)之39重量%水溶液5500g中, -51 - 尽,.氏浪尺度適用中國國家標準(CNS ) M規格(2丨〇><297公釐) ____£7 4 19382 A7 五、發明説明(49 ) 得到反應液。其次,使該反應液於氮氣氣氛下脱氣3 〇分鐘 。其次,將上述反應液供给到與實施例1 6之反應器相同之 反應器中’將反應液保持於3 0T:並將系統置換成氮氣。接 著’繼續攪拌反應液,並加入過硫酸鈉5.〇g及L-抗壞血 酸0.25g ’約1分鐘後開始聚合。其後,在3〇。匸〜8〇。(:下 進行聚合’聚合開始後60分鐘後取出含水凝耀狀聚合物。 將所传含水凝膠狀聚合物細分成直徑約5 m m。將此細分 化後之含水凝膠狀聚合物於50號篩孔之金屬網上展開,在 150C下以熱風乾燥90分鐘。其次,用震動磨碎機使乾燥 物粉碎,再以20號篩孔之金屬網分級,得到平均粒徑 360μιη、且粒徑在ΐ〇6μιη以下之粒子之比例爲5重量%之 不定形破碎狀之比較用吸水劑。所得之比較用吸水劑之結 果併記於表5。 [比較例19] 除了以做爲架橋劑之Ν,Ν·-亞甲雙(甲基)丙晞醯胺 U_67g取代比較例18中之三羥曱基丙烷三丙烯酸酯之外 ’進行與比較例1 8相同之反應及操作,得到平均粒徑 400μιη、且粒徑在ι〇6μιη以下之粒子之比例爲3重量%之 不定形破碎狀之比較用吸水吸水劑。所得之比較用吸水劑 之結果併1己於表1。 [比較例2 0 ] 以部分中和及架橋之丙烯酸聚合物(商品名稱:亞克阿 力克(7夕7 y y夕)CA · W4 ;曰本觸媒股份有限公司製 )爲比較用吸水劑。所得結果併記於表5。 L -52- 本紙張^度適用中國國家標準(CNS ) A4規格(210X297公釐) 4 ^382 A7 B7 五、發明説明(5〇 ) [比較例2 l ] 以部分中和及架橋之澱粉-丙烯酸接枝聚合物(商品名稱 :桑威特(SUNWET)IM3900P ;霍奇士西蘭拟尼斯 (Hoechest Celanese)股份有限公司製)爲比較用吸水劑 。所得之結果併記於表。 [比較例2 2 ] 以部分中和及架橋之丙婦酸聚合物(商品名稱:戴亞威 特(DIAWET)US2-45Z ;三菱油化股份有限公司製)爲比 較用吸水劑。所得之結果併記於表5。 [比較例23] 以部分中和及架橋之丙烯酸聚合物(商品名稱:亞誇奇 普(AQUAKEEP)SA-60 ;住友精化股份有限公司製)爲比 較用吸水劑。所得之結果併記於表5。 [比較例24] 從優妮嬌盟股份有限公司製之稱爲滿意寶寶5 一求 3,商品名)之紙尿布中取出高分子吸水劑,以之爲比較 用吸水劑。所得之結果併記於表5。 經濟部中央標準局員工消費合作社印製 3 5 本紙張尺度適用中國國家標隼(CNS ) Α4規格(210X297公釐) ----------Λι$-- Γ' (請先聞讀背面之注意事項再填寫本莧) ,-梦^ 82 A7 _______B7 V. Description of the invention (47) In a solution of 5 500 g of a 39% by weight aqueous solution of sodium acrylate (with a neutralization rate of 75 mole%), a reaction solution was obtained. Next, the reaction solution was degassed under a nitrogen atmosphere for 30 minutes. Next, the above reaction solution was supplied to the same reactor as the reactor of Example i 6 and the reaction solution was maintained at 30. (: The system was replaced with nitrogen. Then, the reaction solution was continuously stirred, and 24 g of ammonium persulfate & L_ascorbic acid 0.12 g was added, and polymerization was started in about 1 minute. Thereafter, it was at 30 ° C to 80. (: Polymerization was carried out, and the water-containing gel-like polymer was taken out 60 minutes after the start of the polymerization chamber. The obtained water-containing gel-like polymer was subdivided into a diameter of about 5 mra. The metal mesh of the sieve is unfolded and dried with hot air at 150 ° C for 90 minutes. Secondly, the dried material is pulverized with a vibration mill, and then classified by a metal mesh with a 20 mesh sieve to obtain an average particle size of 40. An amorphous and broken water-absorbing agent precursor with a particle size of 10 μm and a particle size of less than 106 μιη is 5% by weight. The water-absorbing agent precursor printed by the shellfish consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs prints the obtained water-absorbing agent precursor 10. 〇Unit weight and ethylene glycol (SP 値: S = 14.6 (cal / cm3) 1/2) 0.5 as the first surface bridging agent 0.5 unit weight glycerin polyglycidyl ether (sp値: 3 = 10.8 (cal / cm3) 1/2) 〇_l unit weight, 3 unit weight of water and ethanol The surface bridging agent composed of 1 unit weight is mixed. The above mixture is heat-treated at 195 ° C for 40 minutes to obtain a water-absorbing agent. The average particle diameter of the obtained water-absorbing agent is 400 μπι, and the particle diameter is less than ΐ06 μπι. The proportion is 3% by weight. The results of this water absorbing agent are also shown in Table 5 ^ [Example 18] 35 g of N, N, -methylenebis (meth) acrylamide 2 as a bridging agent was dissolved in propylamidine 20 weight of sodium. 5 0 g of aqueous solution, the reaction solution was obtained. Its _____ -50- This paper size is applicable to the national standard (CNS) A4 specification (210X297 mm) "93 82 at B7 V. Description of the invention ( 48) times, the reaction solution was degassed under a nitrogen atmosphere for 30 minutes. Next, the above reaction solution was supplied to the same reactor as the reactor of Example 16, the reaction solution was maintained at 30 ° C and the system was replaced Nitrogen was formed. Then, the reaction solution was continuously stirred, and 1.5 g of ammonium persulfate and 0.07 g of L-ascorbic acid were added, and polymerization was started in about 1 minute. Thereafter, polymerization was performed at 30 ×: to 80. After polymerization was started, polymerization was started. After 60 minutes, add sodium carbonate neutralizer 606.7 g and After mixing, the water-containing gel-like polymer is taken out. The neutralization rate of the obtained water-containing gel-like polymer is 75 mol%, and it is subdivided into. The diameter is about 5 mm. Unfolded on the metal mesh of No. 50 sieve, and dried with hot air at 150 ° (for 90 minutes.) Second, the dried matter was pulverized with a vibration mill, and then classified by the metal mesh of No. 20 sieve to obtain an average. An irregularly shaped, water-absorbent precursor having a particle size of 39 μm and a particle size of 10 06 μm or less is 4% by weight. Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs with 100 unit weight of the obtained water-absorbing agent precursor and propylene glycol as the first surface bridging agent (SP 値: S = 12.6 (cal / cm3) 1/2) 0.75 unit weight, A surface composed of propylene glycol diglycidyl ether as a second surface bridging agent (§ pcm: S = 10.1 (cal / cm3) 1/2) 0.05 unit weight, 3 unit weight of water, and 0.75 unit weight of ethanol Bridging agent mixed. The above mixture was heat-treated at i95 »c for 40 minutes to obtain a water-absorbing agent. The average particle diameter of the obtained water-absorbing agent was 380 μm, and the proportion of particles having a particle diameter of 106 μm or less was 3% by weight. The results of this water-absorbing agent are shown in Table 5. [Comparative Example 18] 718 g of trimethylolpropane triacrylate as a bridging agent was dissolved in 5500 g of a 39% by weight aqueous solution of sodium acrylate (neutralization rate 75 mole%), -51-exhaustion. Applicable to China National Standard (CNS) M specification (2 丨 〇 < 297 mm) ____ £ 7 4 19382 A7 V. Description of the invention (49) The reaction solution was obtained. Next, the reaction solution was degassed under a nitrogen atmosphere for 30 minutes. Next, the above reaction solution was supplied to the same reactor as the reactor of Example 16 'to maintain the reaction solution at 30T: and the system was replaced with nitrogen. Then, the reaction solution was continuously stirred, and 5.0 g of sodium persulfate and 0.25 g of L-ascorbic acid were added. The polymerization was started after about 1 minute. Thereafter, at 30.匸 ~ 80. (: Polymerization is performed below 60 minutes after the start of polymerization. The water-containing coagulating polymer is taken out. The transferred water-containing gel-like polymer is subdivided into a diameter of about 5 mm. The metal mesh of No. sieve is unrolled and dried with hot air at 150C for 90 minutes. Secondly, the dried material is pulverized with a vibration mill, and then classified by the metal mesh of No. 20 sieve to obtain an average particle size of 360 μm and Comparative water-absorbing agent in the shape of broken particles in a proportion of 5 wt% or less is 5% by weight. The results of the comparative water-absorbing agent obtained are shown in Table 5. [Comparative Example 19] Except for N which is used as a bridging agent , N · -methylenebis (meth) propanamine U_67g was substituted for the trihydroxymethylpropane triacrylate except for the '18 in Comparative Example 18 and subjected to the same reaction and operation as in Comparative Example 18 to obtain an average particle diameter of 400 μm Comparative water-absorbing water-absorbing agent with an irregular shape and a proportion of particles having a particle diameter of ≦ 6 μm or less is 3% by weight. The results of the comparative water-absorbing agent obtained are shown in Table 1. [Comparative Example 2 0] Partially neutralized and bridged acrylic polymer (Product name: Acrylic (7th, 7th, and 7th), CA · W4; manufactured by Yoshimoto Catalyst Co., Ltd.) is a water-absorbing agent for comparison. The results obtained are shown in Table 5. L -52- ^ Degree of this paper Applicable to China National Standard (CNS) A4 specification (210X297 mm) 4 ^ 382 A7 B7 V. Description of the invention (50) [Comparative Example 2 l] Starch-acrylic acid grafted polymer (commercial name) partially neutralized and bridged : SUNWET IM3900P; manufactured by Hoechest Celanese Co., Ltd.) is a comparative water-absorbing agent. The results obtained are recorded in the table. [Comparative Example 2] Partial neutralization and bridging Hyaluronic acid polymer (trade name: DIAWET US2-45Z; manufactured by Mitsubishi Petrochemical Co., Ltd.) is a comparative water-absorbing agent. The results obtained are shown in Table 5. [Comparative Example 23] Partially neutralized The bridging acrylic polymer (trade name: AQUAKEEP SA-60; manufactured by Sumitomo Chemical Co., Ltd.) is a comparative water-absorbing agent. The results obtained are shown in Table 5. [Comparative Example 24] Cong Youni Jiao Meng Co., Ltd. called the satisfied baby 5 Seeking 3, trade name) of the disposable diaper taken polymer water-absorbing agent, as to the comparative water-absorbing agent. The results obtained are shown in Table 5. Printed by the Consumers 'Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 3 5 This paper size applies to the Chinese National Standard (CNS) Α4 size (210X297 mm) ---------- Λι $-Γ' (Please read first Read the notes on the back and fill out this 苋), -Dream
419382 A7 _______ B7 五、發明説明(51 ) 表5 離心分離法 吸水倍率 擴散吸收倍率(g/g) 20分鐘後 3 0‘分鐘後 6 0分鐘後 實施例I 6 3 1 20.8 28.6 3 1.3 實施例1 7 30 22.5 27.9 30.1 實施例1 8 38 16.0 24.0 33.9 比較例1 8 3 1 3.6 5.9 11.7 比較例1 9 18 10.1 16.7 21.1 比較例20 40 20.3 22.1 23.1 比較例2 1 33 4.2 6.5 11.7 比較例22 37 6.9 9.7 12.2 比較例2 3 39 9.6 13.9 2 1.1 比較例24 32 3.7 5.7 9.1 (請先閱讀背面之注意事項再填寫本頁) 1r 經濟部中央標準局員工消費合作社印製 [實施例19] 將實施例16中製得之吸水劑45單位重量及做爲親水性纖 維之木材粉碎紙漿5 5單位重量以混合器進行乾式混合。將 所得之混合物成形成100mm X 100mni之纖維網,對該纖 維網施加2kg/cm2之壓力1分鐘之後,得到單位面積之重 量約0.05 Og/cm2之吸收體所構成之吸收體。所得之吸收 體之擴散吸收倍率(以下簡稱結果)併記於表6。 [實施例2 0 ] 將實施例16中製得之吸水劑50單位重量及木材粉碎紙聚 -54- 本紙張尺度適用中國國家標準(CNS ) A4規格(21〇Χ297公嫠) 4 ^382 at___— B7 五、發明説明(52 ) 經濟部中央標準局員工消費合作社印製 50單位重量以辱合器進行乾式混合。將所得之混合物成形 成10〇111111\100^111之纖維網’對該纖維網施加2]^/(;1112 之壓力1分鐘之#\,得到單位面積之重量約〇 〇47g/cm2之 吸收體。所得之吸收體之結果併記於表6。 [實施例2 1 ] 將實施例16中製得之吸水劑60單位重量及木材粉碎紙漿 40單位重量以混合器進行乾式混合。將所得之混合物成形 成10〇111111\10〇111111之纖維網,對該纖維網施加21^/(;1112 之壓力1分鐘之後,得到單位面積之重量約〇 〇41g/cm2之 吸收體。所得之吸收體之結果併記於表6。 [實施例22] 將實施例16中製得之吸水劑75單位重量及木材粉碎紙漿 25單位重量以混合器進行乾式混合。將所得之混合物成形 成lOOmmX 10〇mm之纖維網,對該纖維網施加2kg/cm2 之壓力1分鐘之後,得到單位面積之重量約〇 〇3 5g/cm2之 吸收雔。所得之吸收體之結果併記於表6。 [實施例23 _ 24] 在實施例22中,除了依序以實施例1?.實施例ls所得 之吸水劑取代實施例10所得之吸水劑之外,與實施例22 相同地製得吸水劑。所得之吸收體之結果併記於表6。 [比較例25] 在實施例19中,除了以比較例18所得之比較用吸水劑取 代實施例16所得之吸水劑之外,與實施例19相同地製得 比較用吸水劑。所得之比較用吸收體之結果併記於表6。 -55 · 本紙張尺度適用中國國豕標準(CNS ) A4規格(210X297公爱) (請先閲讀背面之注意事頃再填窝本頁) 试_ -訂. ^ 419382419382 A7 _______ B7 V. Description of the invention (51) Table 5 Water absorption rate of the centrifugation method Diffusion absorption rate (g / g) 20 minutes after 30 minutes 30 minutes after 60 minutes Example I 6 3 1 20.8 28.6 3 1.3 Examples 1 7 30 22.5 27.9 30.1 Example 1 8 38 16.0 24.0 33.9 Comparative Example 1 8 3 1 3.6 5.9 11.7 Comparative Example 1 9 18 10.1 16.7 21.1 Comparative Example 20 40 20.3 22.1 23.1 Comparative Example 2 1 33 4.2 6.5 11.7 Comparative Example 22 37 6.9 9.7 12.2 Comparative Example 2 3 39 9.6 13.9 2 1.1 Comparative Example 24 32 3.7 5.7 9.1 (Please read the notes on the back before filling out this page) 1r Printed by the Employees' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs [Example 19] Will be implemented 45 unit weight of the water absorbing agent prepared in Example 16 and wood crushed pulp as hydrophilic fiber 55 unit weight were dry-mixed by a mixer. The obtained mixture was formed into a fiber web of 100 mm X 100 mni, and a pressure of 2 kg / cm2 was applied to the fiber web for 1 minute to obtain an absorbent body composed of an absorber having a weight per unit area of approximately 0.05 Og / cm2. Diffusion absorption ratios (hereinafter referred to as results) of the obtained absorbers are also shown in Table 6. [Example 2 0] The unit weight of the water absorbing agent prepared in Example 16 and the wood crushed paper were poly-54-. The paper size was adapted to the Chinese National Standard (CNS) A4 specification (21〇297297) 4 ^ 382 at___ — B7 V. Description of Invention (52) The Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs printed 50 units of weight for dry mixing using a blender. The obtained mixture was formed into a fiber web of 10011111 \ 100 ^ 111, and 2] ^ / (; 1112 pressure for 1 minute # \ was applied to the fiber web to obtain an absorption of about 0.0047 g / cm2 per unit weight. The results of the obtained absorber are also shown in Table 6. [Example 2 1] Dry mixing was performed in a mixer using 60 unit weight of the water-absorbing agent and 40 unit weight of the wood pulverized pulp obtained in Example 16. The obtained mixture was mixed. A fiber web of 10011111 \ 10011111 was formed, and after applying a pressure of 21 ^ / (; 1112) to the fiber web for 1 minute, an absorbent having a weight per unit area of about 0.0041 g / cm2 was obtained. The results are recorded in Table 6. [Example 22] The unit weight of 75 units of the water-absorbing agent and the unit weight of wood crushing pulp obtained in Example 16 were dry-mixed with a mixer. The resulting mixture was formed into fibers of 100 mm × 100 mm. After applying a pressure of 2 kg / cm2 to the fiber web for 1 minute, an absorbent with a weight per unit area of about 0.005 g / cm2 was obtained. The results of the obtained absorber are shown in Table 6. [Example 23 -24] In Example 22, except that Example 1? The water-absorbing agent obtained in Example 1s was used in place of the water-absorbing agent obtained in Example 10, and a water-absorbing agent was prepared in the same manner as in Example 22. The results of the obtained absorbent are shown in Table 6. [Comparative Example 25] In Example 19, a comparative water-absorbing agent was prepared in the same manner as in Example 19, except that the comparative water-absorbing agent obtained in Comparative Example 18 was used in place of the comparative water-absorbing agent obtained in Example 16. The results of the obtained comparative absorbent were recorded. In Table 6. -55 · This paper size is applicable to China National Standard (CNS) A4 specification (210X297 public love) (Please read the notes on the back before filling this page) Trial _-order. ^ 419382
[比較例2 6 ] :實施例20中,除了以比較例18所得之比較用吸水劑取 實施例16所得之吸水劑之外,與實施例20相同地製得 比較用吸水劑。所得之比較用吸收體之結果併記於表6。 [比較例27] •在實施例2 1中,除了以比較例1 8所得之比較用吸水劑取 代實施例16所得之吸水劑之外,與實施例21相同地製得 比較用吸水劑。所得之比較用吸收體之結果併記於表6。 [比較例2 8〜3 4 ] 在實施例2 2中,除了依序以比較例1 8〜比較例2 *所得 之比較用吸水劑取代實施例16所得之吸水劑之外,與實施 例22相同地製得比較用吸水劑。所得之比較用吸收體之結 果併記於表6 ΰ 經濟部中央標準局員工消費合作社印製 -56- 本紙浪尺度適用中國國家標準(CNS ) Α4規格(210X297公釐) 419382 Α7 Β7 五、發明説明(54) 經濟部中央榇準局—工消費合作社印製 表6 吸收體之擴散吸收倍率(g/g) 30分鐘後 6 0分鐘後 實施例1 9 19.4 19.7 實施例2 0 19.5 20.1 實施例2 1 19.3 22.2 實施例22 19.1 24.3 實施例2 3 19.4 23.1 實施例24 17,9 25.6 比較例2 5 17.6 18.5 比較例2 6 10.1 15.1 比較例2 7 9.6 14.2 比較例2 8 7.3 10.4 比較例2 9 13,0 16.9 比較例3 0 16.0 18.3 比較例3 1 7.4 10.7 比較例3 2 9.1 10.7 比較例3 3 11.5 15.8 比較例3 4 6.8 8.6 [實施例25] 將實施例16中製得之吸水劑5〇單位重量及木材粉碎紙漿 5 0單位重量以混合器進行乾式混合。其次將所得到的混合 -57- 本紙張尺度適用中國國家標準(CNS ) A4規格(2〖〇χ297公釐) (請先閲讀背面之注意事项再填寫本頁} .浪. -訂. 419382 A7 B7 五、發明説明(55 ) 經濟部中央標準局員工消費合作社印裝 物在形成於400號篩孔(篩孔之大小爲3 8μηι)上之網筛 (wire screen)上用批次型空氣抄造機進行空氣抄造,以 形成120mm X 400mm大之纖維網。對該纖维網施加 2kg/cm2之壓力5秒,以得到單位面積之重量約 0.047g/cm2之吸收體。 接著,將由液不透過性聚丙烯所構成之具有所謂腿部擅 線(leg gathers)之背面層(液不透過性薄片)、上述吸收體 及液透過性之由聚丙烯構成之頂面層(液不透過性薄片)用 雙面滕依序站著,同時在此貼著物上裝設2個所謂固定膠 帶,以得到吸收性物品(即紙尿布)。此吸收性物品之重量 爲 46g 〇 將上述吸收性物品穿著於所謂邱比(Kewpie)洋娃娃(身 長5 5cm、重量5kg)上,使該洋娃蛙成爲俯臥之狀態之後 ’在吸收性物品及洋娃娃之間,***管子,於相當於人體 排尿的位置上’每隔20分鐘依序每次注入5〇ml之生理食 鹽水。然後’在所注入的生理食鹽水不被吸收性物品所吸 收而漏出來之時結束上述動作,測定此時爲止所注入之生 理食鹽水之量。 重覆上述測定4次之後,求出所得測量値之平均値,以 該値爲吸收量。結果,該吸收量爲250g。 [比較例3 5] 在實施例2 5中,除了以比較例1 8所得之比較用吸水劑取 代實施例16所得之吸水劑之外,與實施例2 5相同地製得 比較用吸收性物品。此比較用吸收性物品之重量爲46g。 -58 - 本紙張尺度適用中國國家標準{<:呢)戍4規格(210乂297公釐> ----------Ί-Αζ-I 1 --. (請先鬩讀背面之注意事項再填寫本頁) 訂 A7 B7 4j^38 五、發明説明(56 ) 用上述比較用吸收性物品重覆與實施例25相同之測定4 次之後,求出所得測量値之平均値,以該値爲吸收量。結 果,該吸收量爲225g。 從表5 ·表6所記載之結果可明顯地看出,本發明之吸水 劑及吸收體之擴散吸收倍率高且具有非常的液擴散性。即 ,可知本發明之吸水劑及吸收體之吸水特性與比較用之吸 水劑及吸收體之吸水特性之差特別隨著吸收體中之樹脂濃 度變高而變大。從實施例25及比較例35所記載之結果可 明顯地看出,本發明之吸收性物品具有優於比較用吸收性 物品之保持非常高之吸收量(吸水量)等優異性能(吸水特 性)。 又,發明之最佳實施態樣之項目中所揭示之具體實施態 樣或實施例之目的僅在於清楚地説明本發明之技術内容, 而不應只限定於此等具體實施例而狹義地解釋本發明。本 發明之精神及記載於下之申請專利之範園内可有各種變更 實施之可能性。 產業上可利用性 經濟部中央標準局員工消費合作社印製 上述吸水劑或吸收體特別適用於要求高機能化及薄型化 之紙尿布或衛生棉等所謂失禁墊片等之衛生材料等之吸收 性物。藉此,可提供具有上述優異性能之吸收性物品。 59-[Comparative Example 2 6]: In Example 20, a water-absorbing agent for comparison was obtained in the same manner as in Example 20 except that the water-absorbing agent for comparison obtained in Comparative Example 18 was used. The results of the obtained comparative absorbers are shown in Table 6. [Comparative Example 27] In Example 21, a comparative water-absorbing agent was prepared in the same manner as in Example 21 except that the comparative water-absorbing agent obtained in Comparative Example 18 was used instead of the comparative water-absorbing agent obtained in Example 16. The results of the obtained comparative absorbers are shown in Table 6. [Comparative Example 2 8 to 3 4] Example 22 was the same as Example 22 except that Comparative Example 1 8 to Comparative Example 2 were sequentially replaced with the water absorbent obtained in Example 16 instead of the water absorbent obtained in Example 16. A comparative water-absorbing agent was prepared in the same manner. The results of the comparative absorbers obtained are recorded in Table 6. 印 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs -56- This paper is in accordance with the Chinese National Standard (CNS) Α4 specification (210X297 mm) 419382 Α7 Β7 (54) Printed by the Central Bureau of Quasi-Ministry of Economy and Industry and Consumer Cooperatives. Table 6 Diffusion absorption rate (g / g) of absorber 30 minutes and 60 minutes later Example 1 9 19.4 19.7 Example 2 0 19.5 20.1 Example 2 1 19.3 22.2 Example 22 19.1 24.3 Example 2 3 19.4 23.1 Example 24 17,9 25.6 Comparative Example 2 5 17.6 18.5 Comparative Example 2 6 10.1 15.1 Comparative Example 2 7 9.6 14.2 Comparative Example 2 8 7.3 10.4 Comparative Example 2 9 13 0 16.9 Comparative Example 3 0 16.0 18.3 Comparative Example 3 1 7.4 10.7 Comparative Example 3 2 9.1 10.7 Comparative Example 3 3 11.5 15.8 Comparative Example 3 4 6.8 8.6 [Example 25] The water-absorbing agent prepared in Example 16 was 50%. Unit weight and 50 unit weight of wood crushed pulp are dry-mixed with a mixer. Secondly, the obtained blend-57- this paper size applies the Chinese National Standard (CNS) A4 specification (2 〖〇χ297mm) (Please read the precautions on the back before filling in this page}. Wave. -Order. 419382 A7 B7 V. Description of Invention (55) The printed materials of the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs are used to make batch-type air on a wire screen formed on a No. 400 sieve (the size of the sieve is 38 μm). The machine was air-made to form a 120mm X 400mm large fiber web. A pressure of 2kg / cm2 was applied to the fiber web for 5 seconds to obtain an absorbent having a weight per unit area of about 0.047g / cm2. Next, the liquid was impermeable Back layer (liquid impervious sheet) with so-called leg gathers, liquid absorbent sheet and top layer (liquid impervious sheet) made of polypropylene with absorbent body and liquid permeability Stand on both sides in order, and install two so-called fixing tapes on this sticker to get an absorbent article (that is, a paper diaper). The weight of this absorbent article is 46 g. Wear the above absorbent article Kewpie After placing the doll on the doll (5 5cm in length and 5kg in weight), "insert a tube between the absorbent article and the doll and place it in a position equivalent to human's urination" every 20 minutes. 50 ml of physiological saline was injected once. Then, when the injected physiological saline was not absorbed by the absorbent article and leaked out, the above operation was ended, and the amount of physiological saline injected until then was measured. Repeat After the above measurement was performed 4 times, the average value of the measured tritium was determined, and the tritium was taken as the absorption amount. As a result, the absorption amount was 250 g. [Comparative Examples 3 to 5] In Examples 2 to 5, except for those obtained in Comparative Example 18 In comparison, a water-absorbing agent was used instead of the water-absorbing agent obtained in Example 16. A comparative absorbent article was prepared in the same manner as in Examples 25. The weight of this comparative absorbent article was 46 g. -58-This paper size applies to China National Standard {<:?) 规格 4 specifications (210 乂 297 mm > ---------- Ί-Αζ-I 1-. (Please read the precautions on the back before filling in this Page) Order A7 B7 4j ^ 38 V. Description of the invention (56) Use the absorbency for comparison After repeating the same measurement 4 times as in Example 25, the article was measured for the average value of the measured tritium, and the tritium was taken as the absorption amount. As a result, the absorption amount was 225 g. The results described in Tables 5 and 6 are obvious. It can be seen that the water-absorbing agent and the absorbent of the present invention have a high diffusion absorption rate and have a very liquid diffusivity. That is, it can be seen that the water-absorbing properties of the water-absorbing agent and the absorbent of the present invention are comparable to those of the water-absorbing agent and the absorbent of the comparison. The difference in characteristics becomes particularly large as the resin concentration in the absorbent body becomes higher. From the results described in Example 25 and Comparative Example 35, it is clear that the absorbent article of the present invention has superior properties (water absorption characteristics) such as a very high absorption capacity (water absorption capacity) than the comparative absorbent article. . In addition, the specific implementation aspects or embodiments disclosed in the item of the best implementation aspect of the invention are only for clearly explaining the technical content of the present invention, and should not be limited to these specific embodiments and explained narrowly. this invention. The spirit of the present invention and the scope of patent application described below can be modified and implemented in various ways. Industrial availability The above-mentioned absorbent or absorbent printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economy Thing. This makes it possible to provide an absorbent article having the above-mentioned excellent properties. 59-
Claims (1)
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JP13038594 | 1994-06-13 |
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TW84106029A TW419382B (en) | 1994-06-13 | 1995-06-13 | Absorbing agent, method of manufacturing same and absorbent product containing same |
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