JP2519192B2 - Method for producing polyurethane porous body - Google Patents
Method for producing polyurethane porous bodyInfo
- Publication number
- JP2519192B2 JP2519192B2 JP17551590A JP17551590A JP2519192B2 JP 2519192 B2 JP2519192 B2 JP 2519192B2 JP 17551590 A JP17551590 A JP 17551590A JP 17551590 A JP17551590 A JP 17551590A JP 2519192 B2 JP2519192 B2 JP 2519192B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- polyurethane
- porous body
- added
- crystallization
- 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.)
- Expired - Lifetime
Links
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) 本発明はポリウレタンスポンジの製造方法に係り、更
に詳しくは微細な連続気孔を有するポリウレタンスポン
ジの製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for producing a polyurethane sponge, and more particularly to a method for producing a polyurethane sponge having fine continuous pores.
(従来の技術) ポリウレタン樹脂を素材とするスポンジは、疎水性且
つ軽量であり、緩衝材,保温材,充填材,あるいは雑貨
用等に汎用されそれぞれ適した物性,構造のものが用い
られている。例えば化粧用のパフ材としては、きめの細
い表面で吸水性のよいものが感触がよく化粧料を有効に
使用できるが、気孔率が大き過ぎるものはボリューム感
に欠け底つき現象があらわれ好ましくない。また、拭浄
材として用いるには吸水吸液性のよいものが好適であ
る。(Prior Art) A sponge made of polyurethane resin is hydrophobic and lightweight, and is used as a cushioning material, a heat insulating material, a filling material, a general-purpose item, or the like, having physical properties and a structure suitable for each. . For example, as a puff material for makeup, a material with a fine textured surface and good water absorption has a good feel and can be effectively used for cosmetics, but a material with too large porosity is not preferable because of lack of volume and bottoming phenomenon. . Further, a material having a good water absorbing property is suitable for use as a cleaning material.
従来、ポリウレタンスポンジは発泡剤を用いる方法に
より製造されている。発泡剤としては炭酸ガス,フレオ
ン,空気などのほか分解型の有機系発泡剤等が用いられ
ている。しかしながら発泡剤を用いる方法では比較的大
きな気泡のものしか得られず、また気孔率を低くすると
連続気孔ではなく独立気孔のものとなり吸水性に乏し
く、連続気孔のスポンジを得るためには気孔率が極めて
大きなもの(例えば95容量%以上)とする必要があっ
た。即ち、従来の方法では化粧用のパフ材や拭浄材に適
した、微細な気孔径で、連続気孔を有し且つ気孔率が50
〜90容量%程度のものを得ることは極めて困難であっ
た。Conventionally, polyurethane sponges are manufactured by a method using a foaming agent. As the foaming agent, carbon dioxide, freon, air, etc., as well as decomposable organic foaming agents are used. However, with the method using a foaming agent, only those with relatively large bubbles can be obtained, and when the porosity is lowered, the pores are not continuous pores but independent pores and poor in water absorption. It was necessary to make it extremely large (for example, 95% by volume or more). That is, in the conventional method, it has a fine pore diameter, has continuous pores, and has a porosity of 50, which is suitable for a puff material for makeup and a cleaning material.
It was extremely difficult to obtain a material of about 90% by volume.
(発明が解決しようとする課題) 本発明の目的は、微細な連続気孔を有し、ボリューム
感に富んだポリウレタンスポンジを容易且つ安定して効
率よく製造する方法を提供するにある。(Problems to be Solved by the Invention) An object of the present invention is to provide a method for easily, stably and efficiently producing a polyurethane sponge having fine continuous pores and rich in volume.
(課題を解決するための手段) 上記本発明の目的は、ポリウレタンエラストマーの水
分散体に結晶水を吸収しうる塩類を加えて撹拌し、この
塩類に水分を吸収させた後、水溶性の塩類を添加して混
練し半流動性の状態とし、続いてこれを型枠に注型し乾
燥,熱処理を施した後、水洗して前記両塩類を除去する
ことを特徴とするポリウレタン多孔体の製造方法によっ
て達成される。(Means for Solving the Problems) The object of the present invention is to add a salt capable of absorbing water of crystallization to an aqueous dispersion of a polyurethane elastomer and stir the mixture to absorb water, and then to dissolve the water-soluble salt. Is added to the mixture to knead it into a semi-fluid state, which is subsequently cast in a mold, dried and heat-treated, and then washed with water to remove both salts, thereby producing a polyurethane porous body. Achieved by the method.
本発明に用いるポリウレタンエラストマーの水分散体
とは、非反応型のポリウレタンエラストマーを強制乳化
または自己乳化させたものである。中でも疎水性ウルタ
ンエラストマーを少量の特殊界面活性剤により乳化分散
した強制乳化型のものが、耐水,耐熱水性能の点で優れ
ており好ましい。The aqueous dispersion of the polyurethane elastomer used in the present invention is a non-reactive polyurethane elastomer that is forcedly emulsified or self-emulsified. Among them, a forced emulsification type in which a hydrophobic urethane elastomer is emulsified and dispersed with a small amount of a special surfactant is preferable because it is excellent in water resistance and hot water resistance.
本発明に用いる結晶水を吸収しうる塩類とは、結晶中
に結晶水を含むことができる塩類のうち、結晶水を含有
しない無水物または結晶水をさらに含有しうる状態のも
のである。かかる塩類としては硫酸ナトリウム(Na2S
O4),硫酸銅(Cu2SO4)等を挙げることができ、例えば
硫酸ナトリウムは7水温,10水温が知られ、1モルの無
水硫酸ナトリウムは10モルの水をその結晶中に吸収含有
することができる。大きな吸水量を得るには、上記塩類
は結晶水をもたない無水物が好適であり、通常は粉末状
のものが用いられる。The salt capable of absorbing water of crystallization used in the present invention is a salt which can contain water of crystallization in a crystal, and a salt which does not contain water of crystallization or which can further contain water of crystallization. Such salts include sodium sulfate (Na 2 S
O 4 ), copper sulfate (Cu 2 SO 4 ), etc., for example, sodium sulfate is known to have a water temperature of 7 and a water temperature of 10 and 1 mol of anhydrous sodium sulfate absorbs 10 mol of water in its crystal. can do. In order to obtain a large water absorption, the salt is preferably an anhydride having no water of crystallization, and a powdery one is usually used.
本発明に用いる水溶性の塩類とは、上述した結晶水を
吸収しうる又は既に吸収した塩類ではなく、結晶中に結
晶水を含有できない、水に容易に溶解する塩類で、潮解
性を有するものであってもよい。このような水溶性の塩
類としては、例えば塩化ナトリウム,塩化マグネシウム
等を挙げることができ、就中塩化ナトリウムが好適であ
る。The water-soluble salts used in the present invention are not salts which can absorb or have already absorbed the water of crystallization described above, salts which cannot contain water of crystallization in the crystals, and salts which are easily dissolved in water and have deliquescent properties. May be Examples of such water-soluble salts include sodium chloride and magnesium chloride, with sodium chloride being preferred.
本発明の方法でポリウレタン多孔体を製造するには、
まず上記ポリウレタンエラストマーの水分散体に、上記
結晶水を吸収しうる塩類を加えて撹拌し、均一に混合す
るとともに添加した塩類に水分を吸収させて、水分散状
態であったポリウレタンエラストマーを析出させ、ポリ
ウレタンエラストマーと結晶水をもった塩類との混合物
とする。このものは全体として流動性のない粉末状の混
合物で、好ましくはやや湿った状態のものである。ここ
で添加する塩類の量は、用いるポリウレタンエラストマ
ーの水分散体に含まれる水分量と塩類が吸収しうる水分
量を勘案して適宜選定すればよい。To produce a polyurethane porous body by the method of the present invention,
First, to the water dispersion of the polyurethane elastomer, a salt capable of absorbing the water of crystallization is added and stirred, and evenly mixed and water is absorbed by the added salt to precipitate a polyurethane elastomer in a water dispersed state. , A mixture of polyurethane elastomer and salts with water of crystallization. This is a powdery mixture which has no fluidity as a whole, preferably in a slightly moist state. The amount of the salt added here may be appropriately selected in consideration of the amount of water contained in the aqueous dispersion of the polyurethane elastomer used and the amount of water that the salt can absorb.
次に得られた粉末状の混合物に前記水溶性の塩類を添
加して十分混練し、前述の結晶水をもった塩類より水分
を抽出して、全体として半流動性をもったクリーム状な
いしシャーベット状のものへと転化させる。ここで添加
する水溶性の塩類の量は、型枠に流し込み易い程度の流
動性となるように適宜選定すればよく、例えば無水硫酸
ナトリウムで吸水した場合は、添加した無水硫酸ナトリ
ウムの重量に対し10〜15重量%程度の塩化ナトリウムを
加えればよい。Next, the above water-soluble salts are added to the obtained powdery mixture and sufficiently kneaded, and water is extracted from the above-mentioned salts having water of crystallization to obtain a creamy or sorbet having semi-liquidity as a whole. Convert it into a shape. The amount of the water-soluble salt added here may be appropriately selected so that it has a fluidity such that it can be easily poured into the mold, and, for example, when water is absorbed with anhydrous sodium sulfate, it is added to the weight of the anhydrous sodium sulfate added. It is sufficient to add about 10 to 15% by weight of sodium chloride.
続いて得られた半流動性の混合物を、型枠に流し込ん
だ後、これを乾燥し水分を除去して固型化し、得られた
固型物を型枠より取り出し、引き続き熱処理を施してポ
リウレタンエラストマーを皮膜化して成型体とする。熱
処理の温度および時間は使用するポリウレタンエラスト
マーの種類に応じ適宜選定すればよい。Subsequently, the obtained semi-fluid mixture was poured into a mold, which was then dried to remove water and solidified, and the solid obtained was taken out of the mold and subsequently heat-treated to obtain polyurethane. The elastomer is formed into a film to form a molded body. The temperature and time of the heat treatment may be appropriately selected according to the type of polyurethane elastomer used.
引き続き、得られた成型体を十分水洗し、残存する二
種類の塩類を溶解除去せしめ、多孔質構造を付与するこ
とにより、本発明の方法で製造されるポリウレタン多孔
体を得ることができる。尚、ポリウレタンエラストマー
のより強固な皮膜を形成するために、引き続き乾燥,熱
処理するのが好適である。Subsequently, the obtained molded product is sufficiently washed with water to dissolve and remove the remaining two kinds of salts to give a porous structure, whereby the polyurethane porous product produced by the method of the present invention can be obtained. Incidentally, in order to form a stronger film of the polyurethane elastomer, it is preferable to continue drying and heat treatment.
本発明の方法においては、上述の如く水溶性の塩類を
添加することにより、粉末状の混合物に流動性を付与す
ることができ、その結果型枠に流し込むのが容易とな
り、更に気孔率が60〜90容量%の多孔体を効率よく製造
できる。本発明の方法において水溶性の塩類を加えない
場合には、粉末状の混合物を型枠に均一に入れるのが容
易ではなく、又型枠に入れた後プレス機等により加圧成
型する必要があり、そのため組織が密となって気孔率の
高い多孔体は得られにくいことになる。In the method of the present invention, by adding a water-soluble salt as described above, it is possible to impart fluidity to the powdery mixture, and as a result, it becomes easy to pour it into a mold, and further, the porosity is 60%. A porous body of up to 90% by volume can be efficiently produced. When the water-soluble salt is not added in the method of the present invention, it is not easy to uniformly put the powdery mixture in the mold, and it is necessary to press-mold with a press or the like after putting it in the mold. Therefore, it becomes difficult to obtain a porous body having a dense structure and a high porosity.
本発明の方法は、気孔形成材として二種類の塩類、即
ち結晶水を吸収しうる塩類と水溶性の塩類を併用するも
のであり、得られる気孔径の大きさは添加する塩類の粒
径や撹拌,混練条件等により調整することが可能である
が、例えば100μm以下といった小さな気孔径のものを
得るのは容易ではない。そこでより微細な気孔径のもの
を得るため本発明の方法においては、気孔形成材として
澱粉を併用することができる。ここで澱粉はポリウレタ
ンエラストマーの水分散体に対し結晶水を吸収しうる塩
類を添加する前もしくは同時に添加すればよい。尚、本
発明の方法においては気孔形成材として澱粉の他に、パ
ルプ粉,繊維細片,海綿粉末,ポリビニルアセタール系
スポンジの細片等を用いることもでき、保水性,あるい
は親水性を向上させることも可能である。The method of the present invention uses two kinds of salts as a pore-forming material, that is, a salt capable of absorbing water of crystallization and a water-soluble salt in combination, and the size of the obtained pore diameter depends on the particle diameter of the salt to be added or It can be adjusted by stirring, kneading conditions, etc., but it is not easy to obtain one having a small pore size of, for example, 100 μm or less. Therefore, in order to obtain a finer pore size, starch can be used together as a pore-forming material in the method of the present invention. Here, the starch may be added to the water dispersion of the polyurethane elastomer before or simultaneously with the addition of the salt capable of absorbing water of crystallization. In the method of the present invention, in addition to starch, pulp powder, fiber flakes, sponge powder, polyvinyl acetal sponge flakes, or the like can be used as the pore-forming material to improve water retention or hydrophilicity. It is also possible.
本発明の方法に従って製造されたポリウレタン多孔体
は平均気孔径500μm以下,気孔率60〜90容量%の比較
的微細な連続気孔を有し、柔軟性,吸水性にすぐれ、ボ
リューム感に富んだものである。又、本発明の方法に気
孔形成材として澱粉を併用したものは、500μm程度と2
00μm以下の大小二種類の気孔径の気孔が混在し、極め
て感触のよい化粧用パフに好適なものである。The polyurethane porous body produced according to the method of the present invention has relatively fine continuous pores having an average pore size of 500 μm or less and a porosity of 60 to 90% by volume, is excellent in flexibility and water absorption, and is rich in volume. Is. In addition, the method of the present invention in which starch is used as a pore-forming material is about 500 μm.
It is suitable for cosmetic puffs, which has a mixture of pores of large and small sizes of 00 μm or less and has a very good feel.
(発明の効果) 本発明の方法によれば、従来の発泡法では得るのが極
めて困難であった微細な気孔径で且つ気孔率が90容量%
以下でも連続気孔を有するポリウレタンスポンジを製造
することができる。また本発明の方法によれば、型枠へ
の注型が容易であり、プレス機等による加圧成型を必要
としない。本発明の方法に澱粉等を併用すれば気孔径が
100μm以下といった極めて微細な気孔径のものを得る
こともできる。(Effect of the Invention) According to the method of the present invention, it is extremely difficult to obtain by the conventional foaming method, and the fine pore diameter is 90% by volume.
A polyurethane sponge having continuous pores can also be produced below. Further, according to the method of the present invention, casting into a mold is easy, and pressure molding by a press machine or the like is not required. If starch or the like is used in combination with the method of the present invention, the pore size will be
It is also possible to obtain an extremely fine pore size of 100 μm or less.
本発明の方法によって製造されたポリウレタンスポン
ジは、平均気孔径500μm以下,気孔率60〜90容量%の
微細連続気孔を有し、吸水性,柔軟性にすぐれ、へたり
感のないボリューム感のある極めて感触の良好で、化粧
用のパフや拭浄材として好適なものである。The polyurethane sponge produced by the method of the present invention has fine continuous pores having an average pore diameter of 500 μm or less and a porosity of 60 to 90% by volume, is excellent in water absorption, flexibility, and has a feeling of volume without sagging. It has a very good feel and is suitable as a puff for makeup and a cleaning material.
(実施例1) ポリウレタンエラストマー水分散体<商品名:スーパ
ーフレックスE−4000,第一工業製薬(株)製,45%エマ
ルジョン>を800g採取し、これに無水硫酸ナトリウム粉
末2000gを添加し、品川式ミキサーにて撹拌混練して、
流動性を失なった若干湿りけのある粉末状態のものとし
た。これに塩化ナトリウムを200g加え更に撹拌混合し
て、クリーム状の半流動性を有するものとした。これを
型枠に流し込み90℃で一昼夜乾燥した後、型枠より取り
出して更に90℃で2日間乾燥し、引き続き120℃で24時
間熱処理し成型体とした。この成型体を温水で充分洗浄
し、硫酸ナトリウムと塩化ナトリウムを溶出除去した
後、90℃で2時間乾燥し、更に120℃で1時間処理し
た。(Example 1) 800 g of a polyurethane elastomer aqueous dispersion <trade name: Superflex E-4000, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd., 45% emulsion> was collected, and 2000 g of anhydrous sodium sulfate powder was added thereto, and Shinagawa was added. Stir and knead with a type mixer,
The powder was in a powdery state with a slight loss of fluidity. To this, 200 g of sodium chloride was added and further mixed with stirring to obtain a creamy semi-liquidity. This was poured into a mold and dried at 90 ° C for a whole day and night, then taken out from the mold and further dried at 90 ° C for 2 days, followed by heat treatment at 120 ° C for 24 hours to obtain a molded body. This molded body was thoroughly washed with warm water to elute and remove sodium sulfate and sodium chloride, dried at 90 ° C for 2 hours, and further treated at 120 ° C for 1 hour.
得られたポリウレタン多孔体は、平均気孔径500μ、
気孔率60容量%のものであり、良好な反発弾性を有する
弾性体である。また、気孔構造は従来の発泡法とは異な
る形態の三次元網目状構造の連続気孔を基本とするもの
であった。従来の発泡法による連続気孔を有するポリウ
レタンスポンジには特有の底つき感があったが、得られ
たポリウレタン多孔体にはそのような底つき感もなく、
ボリューム感に富んだものであった。その他の物性値は
第1表の通りであった。The obtained polyurethane porous body has an average pore diameter of 500μ,
An elastic body having a porosity of 60% by volume and having good impact resilience. Further, the pore structure was based on continuous pores having a three-dimensional network structure having a shape different from the conventional foaming method. The conventional polyurethane sponge having continuous pores by the foaming method had a peculiar bottoming feeling, but the obtained polyurethane porous body had no such bottoming feeling,
It was rich in volume. The other physical properties are shown in Table 1.
(実施例2) 実施例1で用いたポリウレタンエラストマー水分散体
を500g採取し、これに無水硫酸ナトリウム粉末2400gと
馬鈴薯澱粉12gを500gの水に分散した液を加え撹拌混合
した後、塩化ナトリウム1100gを加えて更に撹拌混合し
て半流動性の状態とした。これを型枠に流し込み、以下
実施例1と同様にしてポリウレタン多孔体を得た。注型
の際の流動性は乾燥工程の加熱により、速やかに失なわ
れ、注型された混合液の沈降が見られないため、実施例
1の製品に比べ、全体としてより均一な多孔体構造とな
った。(Example 2) 500 g of the polyurethane elastomer aqueous dispersion used in Example 1 was collected, to which 2400 g of anhydrous sodium sulfate powder and 12 g of potato starch were dispersed in 500 g of water, and the mixture was stirred and mixed, and 1100 g of sodium chloride was added. Was added, and the mixture was further stirred and mixed to obtain a semi-liquid state. This was poured into a mold, and a polyurethane porous body was obtained in the same manner as in Example 1 below. The fluidity at the time of casting is rapidly lost by the heating in the drying step, and the settling of the cast mixed liquid is not observed. Therefore, the porous body structure as a whole is more uniform than that of the product of Example 1. Became.
得られたポリウレタン多孔体は気孔径が500μ程度の
ものと120μ程度のものが混在する連続気孔を有し、実
施例1の製品よりもやや柔らかい風合のもので、化粧用
のパフに極めて好適な感触のものであった。また他の物
性は第1表の通りであった。The obtained polyurethane porous body has continuous pores having a mixture of pore diameters of about 500μ and about 120μ, has a slightly softer texture than the product of Example 1, and is very suitable for a cosmetic puff. It was a nice touch. Other physical properties are shown in Table 1.
(実施例3) 実施例2において用いた馬鈴薯澱粉に代えて、馬鈴薯
澱粉を一旦α化した後粉砕した加工化澱粉を用いるほか
は実施例2と同様にしてポリウレタン多孔体を製造し
た。注型の際の流動性は、乾燥工程の加熱により実施例
2よりも更に速やかに失なわれ、より均一な多孔体構造
が得られた。(Example 3) A polyurethane porous body was produced in the same manner as in Example 2 except that the potato starch used in Example 2 was replaced with a processed starch which was obtained by once gelatinizing and then pulverizing potato starch. The fluidity during casting was lost more quickly than in Example 2 by heating in the drying step, and a more uniform porous body structure was obtained.
得られたポリウレタン多孔体は気孔径が500μ程度の
ものと200〜300μ程度のものが混在する連続気孔を有す
るものであった。他の物性については第1表に示す通り
であった。The obtained polyurethane porous body had continuous pores in which some having a pore size of about 500 μ and some having a pore size of about 200 to 300 μ coexisted. The other physical properties were as shown in Table 1.
(実施例4) 実施例3において加工化澱粉を加える際に、一緒にパ
ルプ粉6gを加えるほかは実施例3と同様にしてポリウレ
タン多孔体を製造した。Example 4 A polyurethane porous body was produced in the same manner as in Example 3 except that 6 g of pulp powder was added together with the processed starch in Example 3.
得られた製品の物性は第1表の通りであり、パルプ粉
の添加により吸水性,保水性が向上した。The physical properties of the obtained product are as shown in Table 1, and the water absorption and water retention were improved by the addition of pulp powder.
(実施例5) 実施例4で加えたパルプ粉を6gではなく12gとするほ
かは実施例4と同様にしてポリウレタン多孔体を製造し
た。得られた製品の物性は第1表の通りであった。(Example 5) A polyurethane porous body was produced in the same manner as in Example 4 except that the pulp powder added in Example 4 was changed to 12 g instead of 6 g. The physical properties of the obtained product are shown in Table 1.
Claims (1)
晶水を吸収しうる塩類を加えて撹拌し、この塩類に水分
を吸収させた後、水溶性の塩類を添加して混練し半流動
性の状態とし、続いてこれを型枠に注型し乾燥,熱処理
を施した後、水洗して前記両塩類を除去することを特徴
とするポリウレタン多孔体の製造方法。1. A semi-fluid state in which a salt capable of absorbing water of crystallization is added to an aqueous dispersion of a polyurethane elastomer, and the mixture is stirred to absorb water and then a water-soluble salt is added and kneaded. The method for producing a polyurethane porous body is characterized in that it is subsequently cast in a mold, dried and heat-treated, and then washed with water to remove both salts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17551590A JP2519192B2 (en) | 1990-07-02 | 1990-07-02 | Method for producing polyurethane porous body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17551590A JP2519192B2 (en) | 1990-07-02 | 1990-07-02 | Method for producing polyurethane porous body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0463845A JPH0463845A (en) | 1992-02-28 |
JP2519192B2 true JP2519192B2 (en) | 1996-07-31 |
Family
ID=15997405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17551590A Expired - Lifetime JP2519192B2 (en) | 1990-07-02 | 1990-07-02 | Method for producing polyurethane porous body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2519192B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002265559A (en) * | 2001-03-13 | 2002-09-18 | Nippon Mektron Ltd | Manufacturing method of porous polyurethane elastic material |
JP4588357B2 (en) * | 2004-04-30 | 2010-12-01 | 小松精練株式会社 | Cosmetic sponge and method for producing the same |
CN111138709A (en) * | 2020-01-13 | 2020-05-12 | 广东万康新材料科技有限公司 | Preparation method of polyurethane sponge |
-
1990
- 1990-07-02 JP JP17551590A patent/JP2519192B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0463845A (en) | 1992-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5379309B2 (en) | Clay composition which does not harden and method for producing the same | |
US5554658A (en) | Injection molded PVA Sponge | |
JP3227694B2 (en) | Framed soap composition | |
WO1980002154A1 (en) | Detergent bar composition and binder therefor | |
RU2559634C2 (en) | Soap bar containing hydrogel phase particles | |
JPS5822080B2 (en) | Manufacturing method of film/sheet cleaning agent | |
US4119578A (en) | Hydrosoluble bar for use in toilet bowls and method of making same which includes an extrusion step | |
JP2017507111A (en) | Effervescent composition | |
JP2519192B2 (en) | Method for producing polyurethane porous body | |
JP2989694B2 (en) | Gel pack fee | |
EP3260433A1 (en) | Novel synthetic clay composition containing hollow sphere, and method for preparing same | |
JP2006152202A5 (en) | ||
JP2004267277A (en) | Sponge for makeup and its manufacturing method | |
JPH0555545B2 (en) | ||
JPS6145967B2 (en) | ||
JPH03174456A (en) | Preparation of polyurethane sponge | |
CN105748301A (en) | Methyl cellulose dental impression material | |
JP3647344B2 (en) | Chlorella extract-containing solid soap | |
JP2801040B2 (en) | Framed soap | |
JP4358227B2 (en) | Foamed resin molded body and molding method thereof | |
JP4003065B2 (en) | Superabsorbent porous material | |
JP6504796B2 (en) | Method of producing machined soap | |
JP3637188B2 (en) | Method for producing foam | |
TW575611B (en) | Method for producing plastic granules with long lasting perfume release and product therefrom | |
JP2005133018A (en) | Method for producing konjak sheet and konjak sheet produced thereby |