JPH0261177A - Water-absorbing composite material and production thereof - Google Patents
Water-absorbing composite material and production thereofInfo
- Publication number
- JPH0261177A JPH0261177A JP63206367A JP20636788A JPH0261177A JP H0261177 A JPH0261177 A JP H0261177A JP 63206367 A JP63206367 A JP 63206367A JP 20636788 A JP20636788 A JP 20636788A JP H0261177 A JPH0261177 A JP H0261177A
- Authority
- JP
- Japan
- Prior art keywords
- water
- resin powder
- coating agent
- composite material
- molecular weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000011347 resin Substances 0.000 claims abstract description 55
- 229920005989 resin Polymers 0.000 claims abstract description 55
- 239000000843 powder Substances 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 17
- 239000002657 fibrous material Substances 0.000 claims abstract description 12
- 239000003960 organic solvent Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 239000002250 absorbent Substances 0.000 claims description 19
- 230000002745 absorbent Effects 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 16
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 abstract description 12
- 239000011230 binding agent Substances 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 8
- 239000000835 fiber Substances 0.000 abstract description 4
- 239000012209 synthetic fiber Substances 0.000 abstract description 2
- 229920002994 synthetic fiber Polymers 0.000 abstract description 2
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 239000002245 particle Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000004584 polyacrylic acid Substances 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- -1 alkali metal salts Chemical class 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 229920006158 high molecular weight polymer Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は高吸水性樹脂と繊維材料からなる吸水性複合材
料に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water absorbent composite material comprising a super absorbent resin and a fiber material.
高吸水性樹脂粉末を紙あるいはパルプ綿に散布してなる
吸収材が紙おむつ、生理用ナプキンに用いられ、また（
射脂粉末を配合した吸水性塗料が知られる。Absorbent materials made by sprinkling superabsorbent resin powder on paper or pulp cotton are used in disposable diapers and sanitary napkins.
Water-absorbing paints containing resin powder are known.
従来の技術
高吸水性樹脂には種々のタイプの製品が知られ、架橋ポ
リアクリル酸、デンプン−アクリル酸グラフト共重合体
、アクリル酸エステル−酢酸ビニル共重合体ケン化物、
イソ７゛チレン一無水マレイン酸共重合体などがあげら
れる。これら重合体に含まれるカルボキシル基はアルカ
リ金属塩として中和され、通常自重の数百倍の水を吸収
膨潤する。Conventional technology Various types of super absorbent resin products are known, including crosslinked polyacrylic acid, starch-acrylic acid graft copolymer, saponified acrylic ester-vinyl acetate copolymer,
Examples include iso-7-ethylene-maleic anhydride copolymer. The carboxyl groups contained in these polymers are neutralized as alkali metal salts, and usually absorb several hundred times their own weight in water and swell.
高吸水性樹脂粉末を分散した吸水性塗料も知られる。高
吸水性樹脂粉末を水不溶可撓性樹脂を含む有機溶剤溶液
に分散した水遮蔽用塗料組成物（特開昭５９−６６４６
６）、塗料ベースとしてゴム系バインダーに高吸水性樹
脂粉末を配合してなる防汚塗料（特開昭６０−２４０７
７５ ）があげられる。また高吸水性樹脂粉末を分散さ
セタヒドロキシプロビルセルロースのアルコール溶液を
平面上に流延する吸水性フィルムの製法（特開昭６Ｏ−
２１７２４１）もみられる。Water-absorbing paints in which super-absorbent resin powder is dispersed are also known. A water-shielding coating composition in which a super-absorbent resin powder is dispersed in an organic solvent solution containing a water-insoluble flexible resin (Japanese Patent Laid-Open No. 59-6646
6) Antifouling paint made by blending super absorbent resin powder with a rubber binder as a paint base (Japanese Patent Laid-Open No. 60-2407
75) can be mentioned. In addition, a method for producing a water-absorbent film in which an alcoholic solution of cetahydroxypropylcellulose in which superabsorbent resin powder is dispersed is cast on a flat surface (Japanese Unexamined Patent Application Publication No. 6-0-1999)
217241) can also be seen.
発明が解決しようとする問題点
高吸水性樹脂粉末を紙、パルプ綿に散布する方法は樹脂
の基材との固着性および均一性が不充分で、脱落が生じ
る。Problems to be Solved by the Invention In the method of dispersing superabsorbent resin powder onto paper or pulp cotton, the adhesion and uniformity of the resin to the base material are insufficient, resulting in the resin falling off.
嵩高な繊維材料として、ウェブ、マット、フェルト、不
織布などがあげられる。線維素材は、セルロース系、羊
毛などの天然繊維系、ポリオレフィン、ナイロン、ポリ
エステルなどの合成繊維系あるいはガラス繊維などの無
機系のいずれでもよい。Bulky fiber materials include webs, mats, felts, non-woven fabrics, and the like. The fiber material may be a natural fiber such as cellulose or wool, a synthetic fiber such as polyolefin, nylon, or polyester, or an inorganic fiber such as glass fiber.
本発明の目的は、ウェブなどの繊維材料の嵩高性を保持
して、高吸水性樹脂粉末を基材の内側まで均一に固着さ
せ、しかも樹脂粉末本来の吸水速度と吸水能を発揮する
ような新規な複合材料を提供することにある。The purpose of the present invention is to maintain the bulkiness of fiber materials such as webs, to uniformly adhere the highly water-absorbent resin powder to the inside of the base material, and to exhibit the water absorption speed and ability inherent to the resin powder. Our objective is to provide new composite materials.
樹脂粉末を基材に固着させるためにバインダーを必要と
する。公知のバインダーを用い、塗工液の粘度を調節し
、繊維材料にスプレィ塗布したところ、形態的には目的
とする材料が得られるが、樹脂粉末本来の吸水性が著し
く損なわれることが判明した。樹脂粉末を散布した従来
品に比べ、吸水速度、吸水能の著しい低下が避けられな
かった。A binder is required to fix the resin powder to the base material. When the viscosity of the coating liquid was adjusted using a known binder and spray applied to a fiber material, the desired material was obtained in terms of morphology, but it was found that the water absorbency inherent to the resin powder was significantly impaired. . Compared to conventional products in which resin powder was sprinkled, a significant decrease in water absorption rate and water absorption capacity was unavoidable.
問題点を解決するための手段
本発明者は先に高吸水性樹脂粉末をポリエチレンオキサ
イドの有機溶剤溶液に配合してなる吸水性コーティング
組成物を発明した（特願昭６３−２６３２）。本発明は
上記発明に係る塗工剤を嵩高な繊維材料にスプレィ塗布
することにより完成された。Means for Solving the Problems The present inventor previously invented a water-absorbent coating composition comprising a super-absorbent resin powder mixed with an organic solvent solution of polyethylene oxide (Japanese Patent Application No. 63-2632). The present invention was completed by spray coating a bulky fiber material with the coating agent according to the above invention.
塗工剤をスプレィ塗布する際の要件として、樹脂粉末の
粒度およびバインダー溶液の粘度があげられ、これらは
分散安定性と塗工性を支配する。一般に粒径２００μｍ
以下の樹脂粉末を粘度１００００Ｐ （センチボイズ）
以下の溶液に配合すると好ましい結果が得られる。樹脂
粉末の配合量は、一般にバインダー溶１１００−当り、
２０〜６０ｇが適当である。Requirements for spray coating a coating agent include the particle size of the resin powder and the viscosity of the binder solution, which govern dispersion stability and coating properties. Generally particle size 200μm
The following resin powder has a viscosity of 10,000P (centiboise)
Preferable results can be obtained by incorporating it into the following solutions. The blending amount of resin powder is generally per 1100 mm of binder solution,
20-60g is appropriate.
塗工剤の分散安定性は界面活性剤およびシリカ粉末など
の不活性固体微粉末の添加で改善される。さらにこれら
の分散剤は製品の吸水速度を向上させる効果もみられる
。The dispersion stability of coating agents is improved by the addition of surfactants and inert solid fine powders such as silica powder. Furthermore, these dispersants have the effect of improving the water absorption rate of products.
ポリエチレンオキサイドは、水溶性テアルト同時に多く
の汎用有機溶剤に可溶な熱可塑性ポリマーであり、エチ
レンオキサイドとプロピレンオキサイドあるいはブチレ
ンオキサイドの共重合体も含まれる。広範囲の分子量の
種々の市販製品がみられ、平均分子量が１０万以上の高
分子量ポリマーが本発明に用いられる。溶剤として、ア
セトニトリル、二塩化エチレン、トリクロルエチレン、
ベンゼン、テトラヒドロフラン、メチルエチルケトン、
トルエンなどカアケられ、これらの中アセトニトリル、
二塩化エチレン、トリクロルエチレンは良溶剤で、０℃
以下の低温でも優れた溶解性を有する。Polyethylene oxide is a thermoplastic polymer that is water-soluble and soluble in many general-purpose organic solvents, and also includes copolymers of ethylene oxide and propylene oxide or butylene oxide. A variety of commercially available products are available with a wide range of molecular weights, and high molecular weight polymers with average molecular weights of 100,000 or more are useful in the present invention. As a solvent, acetonitrile, ethylene dichloride, trichlorethylene,
Benzene, tetrahydrofuran, methyl ethyl ketone,
Acetonitrile, acetonitrile,
Ethylene dichloride and trichlorethylene are good solvents and
It has excellent solubility even at low temperatures below.
分子量１０万以上のポリエチレンオキサイド（ｐｇｏ）
被膜は吸水してゲル状を呈するが、べと付き感がなく、
高吸水性樹脂と同様な挙動がミラれる。ＰＥＯはポリア
クリル酸と会合体を形成し、部分的にアルカリ金属塩に
中和されたポリアクリル酸とも親和性が大で、優れたバ
インダー機能を発揮する。Polyethylene oxide (PGO) with a molecular weight of 100,000 or more
The coating absorbs water and takes on a gel-like appearance, but it does not feel sticky.
The behavior is similar to that of super absorbent resin. PEO forms an aggregate with polyacrylic acid, has a high affinity with polyacrylic acid partially neutralized with an alkali metal salt, and exhibits an excellent binder function.
ＰＥＯをバインダーとする高吸水性樹脂粉末を含む被膜
の吸水時の挙動を観察して次の顕著なる事実が見出され
た。The following remarkable fact was discovered by observing the behavior of a film containing super absorbent resin powder with PEO as a binder upon water absorption.
樹脂を覆５ＰＥＯ薄膜が膨潤するとほぼ同時に樹脂の吸
水膨潤が始まる。ＰＥＯの溶解は樹脂が充分膨潤するま
で殆んど生じない。こうした傾向はＰＥＯの分子量が大
である程顕著である。高分子ｇｐｇｏは分子のからみ合
いによる効果で架橋構造と同様な膨潤挙動を示し、水の
浸透性が良好であるためと考えられる。平均分子量数百
万のＰＥＯは樹脂に対して１チ以下の夕景でも充分なバ
インダー機能を有するばかりでな（、良好の分散安定性
とスプレィ塗布に適する溶液粘度を与える＠
ＰＥＯ被膜が薄い程高吸水性樹脂粉末の膨潤が速やかで
あることも認められた。被膜の厚さは、ＰＥＯ溶液の濃
度および高吸水性樹脂粉末の添加量および粒度による。Almost at the same time as the PEO thin film covering the resin swells, the resin begins to absorb water and swell. Little dissolution of PEO occurs until the resin is sufficiently swollen. This tendency becomes more pronounced as the molecular weight of PEO increases. This is thought to be because the polymer GPGO exhibits swelling behavior similar to a crosslinked structure due to the effect of molecular entanglement, and has good water permeability. PEO, which has an average molecular weight of several million millions, not only has a sufficient binder function for the resin even in the evening light of less than 1 inch, but also provides good dispersion stability and a solution viscosity suitable for spray application. It was also observed that the water absorbent resin powder swelled rapidly.The thickness of the coating depends on the concentration of the PEO solution and the amount and particle size of the super absorbent resin powder.
平均分子量が１０万以上であるＰＥＯは、５重量係以下
の′比較的低濃度で樹脂粉末の良好な分散安定性を与え
るのに充分な溶液粘度を示す。濃度が５重量係を越える
と、樹脂粉末の膨潤速度に好ましくない影響を与える。PEO having an average molecular weight of 100,000 or more exhibits sufficient solution viscosity to provide good dispersion stability of the resin powder at relatively low concentrations of 5 parts by weight or less. If the concentration exceeds 5 parts by weight, it will have an unfavorable effect on the swelling rate of the resin powder.
樹脂粉末の分散安定性は主として粒径に依存する。粒径
が２０μｍ以下の微粉の場合、１チ以下の低濃度でも樹
脂粉末を安定に分散させ、しかも基材に対して充分なバ
インダー機能を発揮するので、濃度の下限を設定するこ
とは実際的でない。The dispersion stability of resin powder mainly depends on the particle size. In the case of fine powder with a particle size of 20 μm or less, the resin powder can be stably dispersed even at a low concentration of 1 µm or less, and it also exerts a sufficient binder function on the base material, so it is practical to set a lower limit of the concentration. Not.
スプレィ塗布の方法は特に限定されず、公知のスプレィ
コータを用いて行われる。The method of spray coating is not particularly limited, and can be carried out using a known spray coater.
高吸水樹脂粉末の粒径、ＰＥＯの分子量および塗工剤の
各成分の組成と粘度はスプレィ塗布が可能な範囲で、そ
れぞれの目的に応じて調整される。界面活性剤、不活性
固体微粉末の添加は、塗工剤の分散安定性および塗膜の
吸水速度を改善する効果がある。The particle size of the super absorbent resin powder, the molecular weight of PEO, and the composition and viscosity of each component of the coating agent are adjusted according to each purpose within a range that allows spray coating. Addition of a surfactant or an inert solid fine powder has the effect of improving the dispersion stability of the coating agent and the water absorption rate of the coating film.
作用
高分子量ＰＥＯの有機溶剤溶液に高吸水性樹脂粉末を分
散させてなる塗工剤をウェブ、マｙ）、不織布等の嵩高
な繊維材料にスプレィ塗布することによって、樹脂粉末
が繊維基材に均一に分散固着された複合材料が得られる
。製品は嵩高性が損なわれることなく、樹脂粉末を散布
した場合と同様な吸水速度および吸水能を示す。By spraying a coating agent made by dispersing superabsorbent resin powder in an organic solvent solution of high molecular weight PEO onto bulky fibrous materials such as webs and non-woven fabrics, the resin powder is applied to the fibrous base material. A uniformly dispersed and fixed composite material is obtained. The product exhibits water absorption speed and capacity similar to that of sprayed resin powder without loss of bulk.
実施例
高吸水性樹脂（日本触媒アクアリックＣＡ）を粉砕し、
１４５メツシのふるいで分別し、粒径約１００μｍ以下
の微粉末を得た。Example A super absorbent resin (Nippon Shokubai Aqualic CA) was pulverized,
The mixture was separated using a 145 mesh sieve to obtain a fine powder with a particle size of about 100 μm or less.
ＰＥ０（製鉄化学ＰＥ０−１８ 平均分子量４３０〜
４８０万）１．５部を二塩化エチレン２００部に溶解し
、粘度４５００Ｐ（室温）の溶液を調製した。PE0 (Steel Chemical PE0-18 average molecular weight 430~
4.8 million) was dissolved in 200 parts of ethylene dichloride to prepare a solution with a viscosity of 4500 P (room temperature).
ｐｇｏ溶液１００部に樹脂微粉末３０部、ソルビタンモ
ノステアレートｏ、 １部、粒径１５〜１８μｍ のシ
リカ微粉末１部を混合して塗工剤を調製した。A coating agent was prepared by mixing 100 parts of PGO solution with 30 parts of fine resin powder, 1 part of sorbitan monostearate O, and 1 part of fine silica powder having a particle size of 15 to 18 μm.
厚さ約４ｍの脱脂綿マットに上記塗工剤をエアレススプ
レィ塗工機を用いて噴霧塗布し、乾燥して、樹脂粉末が
均一に繊維に固着された複合材料を得た。樹脂含量は重
量の増分から、５０ｇ／イと求められた。The above coating agent was sprayed onto an absorbent cotton mat with a thickness of about 4 m using an airless spray coater, and dried to obtain a composite material in which the resin powder was uniformly fixed to the fibers. The resin content was determined to be 50 g/I from the weight increase.
製品を１０α平方の大きさに切断して試験片とした。試
験片をバットに置き、水を注入して底部から吸水させた
。吸水試験片を金網上で水切りし、重量を測定した。樹
脂を含まない脱脂綿マットを同様にして吸水させ、両者
の重量差から樹脂１ｇ当りの吸水量を求め、吸水倍率は
２６０倍であった。The product was cut into a 10α square size to prepare a test piece. The test piece was placed in a vat, and water was injected to absorb water from the bottom. The water absorption test piece was drained on a wire mesh and its weight was measured. An absorbent cotton mat containing no resin was allowed to absorb water in the same manner, and the amount of water absorbed per 1 g of resin was determined from the difference in weight between the two, and the water absorption ratio was 260 times.
別に樹脂粉末を５０１７７ｎ？の割合で散布した試験片
を調製し、同様に吸水させ、樹脂の吸水倍率は２７０倍
と求められた。Separately, add resin powder to 50177n? A test piece was prepared by spraying the resin at a ratio of 1, and was allowed to absorb water in the same manner, and the water absorption capacity of the resin was determined to be 270 times.
本発明の試料と樹脂粉末を散布した試料の上記比較状、
呻において、樹脂の吸水速度および吸水倍率に殆んど差
がみられなかった。The above comparison of the sample of the present invention and the sample sprayed with resin powder,
There was almost no difference in the water absorption rate and water absorption capacity of the resins.
発明の効果
実施例にみられる如く、高分子量ＰＥＯをバインダーと
する高吸水性樹脂粉末塗膜は、樹脂粉末本来の吸水速度
と吸水能を発揮し、樹脂粉末が均一に繊維基体に固着さ
れた嵩高な繊維材料からなる吸水性複合材料が得られる
。製品は紙おむつ、生理ナプキンなど広範囲な用途に使
用されるEffects of the Invention As can be seen in the examples, the highly water-absorbent resin powder coating film using high molecular weight PEO as a binder exhibited the water absorption speed and water absorption ability inherent to the resin powder, and the resin powder was evenly fixed to the fiber substrate. A water-absorbing composite material made of bulky fiber material is obtained. The product is used for a wide range of purposes, including disposable diapers and sanitary napkins.
Claims (2)
イドを含み、その濃度が５重量％を越えない有機溶剤溶
液に高吸水性樹脂粉末を分散させてなる塗工剤を嵩高な
繊維材料にスプレイ塗布してなる吸水性複合材料。(1) A coating agent containing polyethylene oxide with an average molecular weight of 100,000 or more and containing super absorbent resin powder dispersed in an organic solvent solution whose concentration does not exceed 5% by weight is spray applied to a bulky fiber material. Water-absorbing composite material.
イドを含み、その濃度が５重量％を越えない有機溶剤溶
液に高吸水性樹脂粉末を分散させてなる塗工剤を嵩高な
繊維材料にスプレイ塗布することを特徴とする吸水性複
合材料の製造方法。(2) Spray coating a bulky fibrous material with a coating agent containing polyethylene oxide with an average molecular weight of 100,000 or more and dispersing superabsorbent resin powder in an organic solvent solution whose concentration does not exceed 5% by weight. A method for producing a water-absorbing composite material, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63206367A JPH0261177A (en) | 1988-08-22 | 1988-08-22 | Water-absorbing composite material and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63206367A JPH0261177A (en) | 1988-08-22 | 1988-08-22 | Water-absorbing composite material and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0261177A true JPH0261177A (en) | 1990-03-01 |
Family
ID=16522154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63206367A Pending JPH0261177A (en) | 1988-08-22 | 1988-08-22 | Water-absorbing composite material and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0261177A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992002297A1 (en) * | 1990-08-03 | 1992-02-20 | Uni-Charm Co., Ltd. | Liquid-absorbing block |
| US6270592B1 (en) | 1997-09-26 | 2001-08-07 | Hitachi Metals, Ltd. | Magnetic core for saturable reactor, magnetic amplifier type multi-output switching regulator and computer having magnetic amplifier type multi-output switching regulator |
| JP2005533903A (en) * | 2002-07-26 | 2005-11-10 | キンバリー クラーク ワールドワイド インコーポレイテッド | Fluid storage material comprising particles fixed with a crosslinkable binder composition |
| JP2016041037A (en) * | 2014-08-18 | 2016-03-31 | 株式会社大貴 | Water-absorption treatment material |
-
1988
- 1988-08-22 JP JP63206367A patent/JPH0261177A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992002297A1 (en) * | 1990-08-03 | 1992-02-20 | Uni-Charm Co., Ltd. | Liquid-absorbing block |
| EP0495120B1 (en) * | 1990-08-03 | 1996-11-20 | Uni-Charm Company Limited | Liquid-absorbing block |
| US6270592B1 (en) | 1997-09-26 | 2001-08-07 | Hitachi Metals, Ltd. | Magnetic core for saturable reactor, magnetic amplifier type multi-output switching regulator and computer having magnetic amplifier type multi-output switching regulator |
| US6504737B2 (en) | 1997-09-26 | 2003-01-07 | Hitachi Metals, Ltd. | Magnetic core for saturable reactor, magnetic amplifier type multi-output switching regulator and computer having magnetic amplifier type multi-output switching regulator |
| JP2005533903A (en) * | 2002-07-26 | 2005-11-10 | キンバリー クラーク ワールドワイド インコーポレイテッド | Fluid storage material comprising particles fixed with a crosslinkable binder composition |
| JP2016041037A (en) * | 2014-08-18 | 2016-03-31 | 株式会社大貴 | Water-absorption treatment material |
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