JPH0813385A - Production of water-dispersible substrate - Google Patents
Production of water-dispersible substrateInfo
- Publication number
- JPH0813385A JPH0813385A JP6166109A JP16610994A JPH0813385A JP H0813385 A JPH0813385 A JP H0813385A JP 6166109 A JP6166109 A JP 6166109A JP 16610994 A JP16610994 A JP 16610994A JP H0813385 A JPH0813385 A JP H0813385A
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- Japan
- Prior art keywords
- water
- paper
- weight
- parts
- coating liquid
- 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.)
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- Sanitary Thin Papers (AREA)
- Paper (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば尿や血液中の成
分を検出するための体液検査用の試験紙片や、トイレッ
トペーパのコア、或いは生理帯用品の剥離紙等の基材と
して用いるのに好適な、印刷適性、耐水性、腰強度を備
え、かつ、水中に廃棄した際に良好な水分散性を示す水
分散性基材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used as a base material for test paper strips for body fluid tests for detecting components in urine and blood, cores for toilet paper, release paper for sanitary ware and the like. And a method for producing a water-dispersible substrate having suitable printability, water resistance, waist strength, and good water dispersibility when discarded in water.
【０００２】[0002]
【従来の技術】一般に、水溶紙或いは水分散紙は、印刷
適性が悪く、また、腰強度が不足している。このため、
紙面に水溶性樹脂を塗工することにより、印刷適性と腰
強度とを与えている。この水溶性樹脂の塗工を水溶性樹
脂の希釈水溶液を用いて行うと、紙に塗工液が浸透し、
紙の機械的強度が著しく低下し、断紙が発生するため、
塗工が困難であった。2. Description of the Related Art Generally, water-soluble paper or water-dispersed paper has poor printability and lacks waist strength. For this reason,
By applying a water-soluble resin on the paper surface, printability and waist strength are provided. When this coating of the water-soluble resin is performed using a dilute aqueous solution of the water-soluble resin, the coating liquid permeates the paper,
Since the mechanical strength of the paper is significantly reduced and paper breaks occur,
It was difficult to apply.
【０００３】[0003]
【発明が解決しようとする課題】そこで、塗工液の高濃
度、高粘度化を図ることにより紙への塗工液の浸透を抑
えて前記問題を解決することを考えたが、腰強度を充分
強くするためには塗工量を多くする必要があり、そのた
め塗工液の表面の乾燥が進み、塗工液内部の溶媒の蒸散
が妨げられ、塗工液の乾燥速度が低下してしまう。特
に、高温乾燥時には、塗工液の内部での発泡や原紙の層
割れ等が生じてしまうという不都合が生じ、問題があっ
た。そこで、本発明は前記問題点を解消し、高濃度、高
粘度の塗工液を速やかに乾燥できる手段を見いだし、か
かる手段を利用して、印刷適性、耐水性、腰強度を備
え、かつ、水中に廃棄した際に良好な水分散性を示す水
分散性基材の製造方法を提供することを目的とする。Therefore, it was considered to suppress the penetration of the coating liquid into the paper by solving the above problem by increasing the concentration and viscosity of the coating liquid. In order to make it sufficiently strong, it is necessary to increase the amount of coating, which causes the surface of the coating liquid to dry, hinders evaporation of the solvent inside the coating liquid, and reduces the drying speed of the coating liquid. . In particular, at the time of high temperature drying, there was a problem that foaming inside the coating liquid, layer breakage of the base paper and the like occurred. Therefore, the present invention solves the above problems, finds a means capable of quickly drying a high-concentration, high-viscosity coating liquid, and using such means, printability, water resistance, and waist strength are provided, and An object of the present invention is to provide a method for producing a water-dispersible base material that exhibits good water dispersibility when it is discarded in water.
【０００４】[0004]
【課題を解決するための手段】本発明者は、前記課題を
達成するべく鋭意研究の結果、塗工液中に親水性粉体を
分散させて塗工することにより、塗工液中の溶媒が塗工
液中に分散される親水性粉体の表面に沿って順次導かれ
塗工液の表面へと案内され、塗工液が短時間に乾燥する
ことを知見した。本発明はかかる知見に基づきなされた
もので、水溶紙或いは水分散紙の片面或いは両面に水溶
性樹脂のコーティング層を備える水分散性基材の製造方
法であって、前記水溶紙或いは水分散紙の片面或いは両
面に水或いは水と溶剤の混合溶媒に水溶性樹脂と親水性
粉体を含有させた塗工液を塗工して前記コーティング層
を形成することを特徴とする。Means for Solving the Problems As a result of earnest research to achieve the above-mentioned object, the present inventor has found that a hydrophilic powder is dispersed in a coating solution to apply the solvent to the solvent in the coating solution. It was found that was sequentially guided along the surface of the hydrophilic powder dispersed in the coating liquid and guided to the surface of the coating liquid, and the coating liquid dried in a short time. The present invention has been made on the basis of such findings, and is a method for producing a water-dispersible substrate having a coating layer of a water-soluble resin on one or both sides of water-soluble paper or water-dispersed paper, wherein the water-soluble paper or water-dispersed paper is The coating layer is formed by applying a coating solution containing water-soluble resin and hydrophilic powder in water or a mixed solvent of water and a solvent on one side or both sides.
【０００５】前記水溶紙或いは水分散紙としては、例え
ばカルボキシメチルセルロースを主成分とする三島製紙
株式会社製のディゾルボＣＤやディゾルボＭＤＰ等や、
湿潤強度剤やサイズ剤を使用しないで抄紙したいわゆる
トイレットペーパのような紙等が挙げられるが、水溶性
或いは水分散性の紙であれば特にこれらに限定されるも
のではない。Examples of the water-soluble paper or water-dispersible paper include, for example, Dissolvo CD and Dissolvo MDP manufactured by Mishima Paper Co., Ltd. containing carboxymethyl cellulose as a main component,
Examples of the paper include so-called toilet paper, which is made without using a wet strength agent or a sizing agent, but is not particularly limited as long as it is water-soluble or water-dispersible paper.
【０００６】前記塗工液の溶媒を水と溶剤の混合溶媒と
したのは、水単独では乾燥速度が遅く生産効率が低下
し、また、溶剤単独では紙内部に塗工液が浸み込み、得
られたシートの溶解時における分散速度が低下するため
である。溶剤としては水と任意の割合で混ぜることがで
きる低沸点の脂肪族低級アルコール、例えばエタノール
等が好ましい。The solvent for the coating solution is a mixed solvent of water and the solvent. When water alone is used, the drying speed is slow and the production efficiency is lowered. Further, when the solvent alone is used, the coating solution permeates the inside of the paper. This is because the dispersion speed at the time of melting the obtained sheet decreases. The solvent is preferably a low-boiling point aliphatic lower alcohol, such as ethanol, which can be mixed with water at an arbitrary ratio.
【０００７】前記水溶性樹脂としては、上記混合溶媒に
可溶であり、得られる樹脂フィルムが水に溶解または膨
潤するものであればよく、例えば、ポリビニルアルコー
ル、澱粉、カルボキシメチルセルロース、ポリビニルピ
ロリドン等が単独、或いは２種以上の混合物として用い
られる。The water-soluble resin may be any one as long as it is soluble in the above-mentioned mixed solvent and the resulting resin film is dissolved or swollen in water, and examples thereof include polyvinyl alcohol, starch, carboxymethyl cellulose, polyvinyl pyrrolidone and the like. They may be used alone or as a mixture of two or more.
【０００８】前記親水性粉体としては、澱粉粉末、ガラ
ス粉末、セルロース粉末等が単独、或いは２種以上の混
合物として用いられるが、澱粉粉末等の糊化温度７５℃
以上の粉体、特に米澱粉粉末の使用が高温乾燥時におけ
る発泡防止及び腰強度の観点から好ましい。また、塗工
液中のその配合量は固形部の１１〜５５重量％程度とす
るのが好ましく、２２〜４４重量％程度とするのがより
好ましい。As the hydrophilic powder, starch powder, glass powder, cellulose powder, etc. may be used alone or as a mixture of two or more kinds. The gelatinization temperature of starch powder etc. is 75 ° C.
The use of the above powders, particularly rice starch powder, is preferable from the viewpoint of foaming prevention and waist strength during high temperature drying. Further, the blending amount thereof in the coating liquid is preferably about 11 to 55% by weight of the solid portion, more preferably about 22 to 44% by weight.
【０００９】また、前記塗工液のコーティング方法とし
ては、コンマコーティング、ロールコーティング、ブレ
ードコーティング、カーテンコーティング等、任意のコ
ーティング方法が適用でき、塗工液の濃度は水溶性樹脂
の固形分濃度で２０〜５０重量％程度が適当であり、ま
た、粘度は１，０００ｃｐｓ〜２０，０００ｃｐｓ程度
が適当である。As the coating method of the coating liquid, any coating method such as comma coating, roll coating, blade coating, curtain coating, etc. can be applied, and the concentration of the coating liquid is the solid content concentration of the water-soluble resin. About 20 to 50% by weight is suitable, and the viscosity is about 1,000 cps to 20,000 cps.
【００１０】[0010]
【作用】塗工液の溶媒を水と溶剤の混合溶媒としたの
で、塗工液の乾燥速度は水単独のものに比べて速く、ま
た溶剤単独のものに比べて得られた水分散性基材の溶解
時の水分散性が優れている。また、前記塗工液を高濃
度、高粘度としたので、紙中への浸透が抑えられ機械的
強度の低下を抑えることができる。また、前記高濃度、
高粘度の塗工液中に親水性粉体を分散させて塗工するこ
とにより、塗工液中の溶媒が塗工液中に分散される親水
性粉体の表面に沿って順次導かれ塗工液の表面へと案内
され、塗工液が短時間に乾燥する。また、そのため高温
乾燥時に塗工液中に発泡が生じることもない。[Function] Since the solvent of the coating liquid is a mixed solvent of water and the solvent, the drying speed of the coating liquid is faster than that of water alone, and the water-dispersible group obtained by comparison with the solvent alone. Excellent water dispersibility when the material is dissolved. Further, since the coating liquid has a high concentration and a high viscosity, it is possible to prevent the coating liquid from penetrating into the paper and prevent the mechanical strength from decreasing. In addition, the high concentration,
By dispersing and coating hydrophilic powder in a highly viscous coating liquid, the solvent in the coating liquid is sequentially guided along the surface of the hydrophilic powder dispersed in the coating liquid. Guided to the surface of the coating liquid, the coating liquid dries in a short time. Therefore, foaming does not occur in the coating liquid during high temperature drying.
【００１１】[0011]
【実施例】以下、本発明水分散性基材の製造方法の実施
例を比較例と共に説明する。 （実施例１）まず、下記の配合割合で、塗工液を調製し
た。 塗工液Ａ 変性エタノール ５０重量部 水 ５０重量部 ポリビニルアルコール ４５重量部 塗工液Ｂ 変性エタノール ５０重量部 水 ５０重量部 米澱粉 ５重量部 ポリビニルアルコール ４０重量部 塗工液Ｃ 変性エタノール ５０重量部 水 ５０重量部 米澱粉 １０重量部 ポリビニルアルコール ３５重量部 塗工液Ｄ 変性エタノール ５０重量部 水 ５０重量部 米澱粉 １５重量部 ポリビニルアルコール ３０重量部 塗工液Ｅ 変性エタノール ５０重量部 水 ５０重量部 米澱粉 ２０重量部 ポリビニルアルコール ２５重量部 塗工液Ｆ 変性エタノール ５０重量部 水 ５０重量部 米澱粉 ２５重量部 ポリビニルアルコール ２０重量部 塗工液Ｇ 変性エタノール ５０重量部 水 ５０重量部 ガラスパウダー １０重量部 ポリビニルアルコール ３５重量部 塗工液Ｈ 変性エタノール ５０重量部 水 ５０重量部 パルプフロック １０重量部 ポリビニルアルコール ３５重量部 塗工液Ｉ 変性エタノール ５０重量部 水 ５０重量部 馬鈴薯エステル化澱粉 １０重量部 ポリビニルアルコール ３５重量部 塗工液Ｊ 変性エタノール ５０重量部 水 ５０重量部 コーン酸化澱粉 １０重量部 ポリビニルアルコール ３５重量部 塗工液Ｋ 変性エタノール ５０重量部 水 ５０重量部 ポリメチルメタクリレート １０重量部 ポリビニルアルコール ３５重量部 尚、前記配合物の詳細は下記の通りである。 ポリビニルアルコール 日本合成化学工業（株）製、ＯＫＳ−９０１３Ｇ 米澱粉 松谷化学工業（株）製、ききょう １０〜１５μｍ 糊化温度８２℃（中心） ガラスパウダー 日東紡績（株）製、ＰＦ Ａ−１０１ １０±１．５μｍ パルプフロック 山陽国策パルプ（株）製、Ｗ−４ ４００メッシュ通過 馬鈴薯エステル化澱粉 松谷化学工業（株）製、ファラジム ５０μｍ以下 糊化温度６０℃（中心） コーン酸化澱粉 王子コーンスターチ（株）製、王子エースＡ １５０メッシュ通過（９５％以上） 糊化温度６６〜６９℃ ポリメチルメタクリレート 綜研化工（株）製、ＭＰ−２７０１ ０．１〜０．２μｍEXAMPLES Examples of the method for producing a water-dispersible substrate of the present invention will be described below together with comparative examples. (Example 1) First, a coating liquid was prepared in the following blending ratio. Coating liquid A Modified ethanol 50 parts by weight Water 50 parts by weight Polyvinyl alcohol 45 parts by weight Coating liquid B Modified ethanol 50 parts by weight Water 50 parts by weight Rice starch 5 parts by weight Polyvinyl alcohol 40 parts by weight Coating liquid C Modified ethanol 50 parts by weight Water 50 parts by weight Rice starch 10 parts by weight Polyvinyl alcohol 35 parts by weight Coating liquid D denatured ethanol 50 parts by weight Water 50 parts by weight Rice starch 15 parts by weight Polyvinyl alcohol 30 parts by weight Coating liquid E denatured ethanol 50 parts by weight Water 50 parts by weight Rice starch 20 parts by weight Polyvinyl alcohol 25 parts by weight Coating liquid F Modified ethanol 50 parts by weight Water 50 parts by weight Rice starch 25 parts by weight Polyvinyl alcohol 20 parts by weight Coating liquid G Modified ethanol 50 parts by weight Water 50 parts by weight Glass powder 10 parts by weight Part Polyvinyl alcohol 35 parts by weight Coating liquid H Modified ethanol 50 parts by weight Water 50 parts by weight Pulp flock 10 parts by weight Polyvinyl alcohol 35 parts by weight Coating liquid I Modified ethanol 50 parts by weight Water 50 parts by weight Potato esterified starch 10 parts by weight Polyvinyl alcohol 35 parts by weight Coating liquid J Modified Ethanol 50 parts by weight Water 50 parts by weight Corn oxidized starch 10 parts by weight Polyvinyl alcohol 35 parts by weight Coating liquid K denatured ethanol 50 parts by weight Water 50 parts by weight Polymethylmethacrylate 10 parts by weight Polyvinyl alcohol 35 parts by weight Incidentally, details of the above-mentioned compound Is as follows. Polyvinyl alcohol Nippon Synthetic Chemical Industry Co., Ltd., OKS-9013G Rice Starch Matsutani Chemical Industry Co., Ltd., today 10-15 μm Gelatinization temperature 82 ° C (center) Glass Powder Nitto Boseki Co., Ltd., PF A-1010 ± 1.5 μm Pulp Flock Sanyo Kokusaku Pulp Co., Ltd., W-4 400 mesh pass Potato esterified starch Matsutani Chemical Industry Co., Ltd., Faradim 50 μm or less, gelatinization temperature 60 ° C. (center) Corn oxide starch Oji corn starch Co., Ltd. ), Oji Ace A 150 mesh (95% or more) gelatinization temperature 66 to 69 ° C. polymethylmethacrylate Soken Kako Co., Ltd., MP-2701 0.1 to 0.2 μm
【００１２】次に、前記のように調製された各塗工液を
用い、水溶紙（ディゾルボＭＤＰ，三島製紙（株）製）
にコンマコータを用いて塗工し、片面塗工後、並びに両
面塗工後の各種乾燥条件下における乾燥後の水分値を測
定した。尚、１２０℃×５ｍｉｎの乾燥条件の場合は発
泡の有無のみを観察した。その結果を下記表１、並びに
表２に示す。Next, using each coating solution prepared as described above, water-soluble paper (Dissolvo MDP, manufactured by Mishima Paper Co., Ltd.)
Was coated using a comma coater, and the water content after drying under various drying conditions after one-side coating and after both-side coating was measured. Incidentally, in the case of a drying condition of 120 ° C. × 5 min, only the presence or absence of foaming was observed. The results are shown in Tables 1 and 2 below.
【００１３】[0013]
【表１】 [Table 1]
【００１４】[0014]
【表２】 [Table 2]
【００１５】また、腰強度について試験し、その結果を
下記表３に示す。The waist strength was also tested, and the results are shown in Table 3 below.
【００１６】[0016]
【表３】 [Table 3]
【００１７】＊１ シリカゲルデシケータで乾燥後、１
００ｍｍ（原紙の巾方向）×５ｍｍ（原紙の流れ方向）
のスティック状とし、先端４０ｍｍを２５℃の水道水に
１０秒間浸した後、もう一方の先端２０ｍｍを支持し、
紙片を水平に保ったとき、水道水に浸した先端が支持し
た位置より１０ｍｍ垂れ下がるまでの時間を測定した。 ＊２ シリカゲルデシケータで乾燥後、ガレーこわさ試
験機で測定した。 ＊３ ２２℃、６５％ＲＨ中で調湿後、ガレーこわさ試
験機で測定した。* 1 After drying with a silica gel desiccator, 1
00mm (width direction of base paper) x 5mm (flow direction of base paper)
After sticking the tip of 40 mm into tap water at 25 ° C for 10 seconds, support the other tip of 20 mm,
When the paper piece was kept horizontal, the time taken for the tip soaked in tap water to hang down 10 mm from the supported position was measured. * 2 Measured with a Galley stiffness tester after drying with a silica gel desiccator. * 3 Measured with a galley stiffness tester after humidity control at 22 ° C and 65% RH.
【００１８】次に、水分散性と印刷適性について試験
し、その結果を下記表４に示す。Next, water dispersibility and printability were tested, and the results are shown in Table 4 below.
【００１９】[0019]
【表４】 [Table 4]
【００２０】＊１ シリカゲルデシケータで乾燥後、１
００ｍｍ（原紙の巾方向）×５ｍｍ（原紙の流れ方向）
のスティック状とし、２５℃の水道水３００ｍｌ（５０
０ｍｌガラスビーカ使用）に投入し、０、３０ｓｅｃ、
６０ｓｅｃ・・・と３０ｓｅｃ毎に、ガラス棒で３回攪
拌し、分散するまでの時間を測定した。 ＊２ シリカゲルデシケータで乾燥後、２０ｍｍ×２０
ｍｍの小片とし、２５℃の水道水５００ｍｌ（１０００
ｍｌガラスビーカ使用）に投入し、マグネティックスタ
ーラ（回転子２５ｍｍ（長さ）×８ｍｍ（φ）を用い１
０００ｒｐｍで回転）で攪拌し、分散するまでの時間を
測定した。 ＊３ スクリーン印刷し、目視で観察した。〇は極めて
良好、△は良好、×は不良を示す。* 1 After drying with a silica gel desiccator, 1
00mm (width direction of base paper) x 5mm (flow direction of base paper)
Stick-shaped, 300 ml of tap water (50
0 ml glass beaker), 0, 30 sec,
Every 30 seconds, every 60 seconds, the mixture was stirred three times with a glass rod, and the time until dispersion was measured. * 2 20 mm x 20 after drying with a silica gel desiccator
mm pieces, 500 ml of tap water at 25 ° C (1000
1 ml using a magnetic stirrer (rotor 25 mm (length) x 8 mm (φ))
It was stirred at (000 rpm) and the time until dispersion was measured. * 3 Screen printed and visually observed. ◯ means extremely good, Δ means good, and × means bad.
【００２１】上記試験結果から明らかなとおり、塗工液
Ｂ〜Ｊを用いた場合、塗工液Ａ、Ｋを用いた場合に比
し、印刷適性、耐水性、腰強度を備え、かつ、水中に廃
棄した際に良好な水分散性を示す水分散性基材を効率よ
く製造できることが分かる。また、特に、親水性粉体と
して米澱粉等の糊化温度が７５℃以上の粉体を用いた場
合に高温乾燥時における塗工液中での発泡が生じないこ
とが分かる。As is clear from the above test results, the coating liquids B to J have printability, water resistance, and waist strength as compared with those of the coating liquids A and K, and are underwater. It can be seen that a water-dispersible substrate exhibiting good water-dispersibility when discarded can be efficiently produced. Further, it is found that, especially when a powder having a gelatinization temperature of 75 ° C. or higher such as rice starch is used as the hydrophilic powder, foaming does not occur in the coating liquid during high temperature drying.
【００２２】（実施例２）叩解度２８°ＳＲの広葉樹ク
ラフトパルプ（ＬＢＫＰ）８０重量部、叩解度２８°Ｓ
Ｒの針葉樹クラフトパルプ（ＮＢＫＰ）２０重量部にタ
ルク５重量部及び硫酸バンド１重量部を添加して得られ
たパルプスラリーを坪量が１００ｇ／ｍ2となるように
抄紙機で抄紙し、平滑度が７秒の水分散紙を得た。これ
に実施例１における塗工液Ｃを実施例１と同様に塗工
し、試験を行った。その試験結果を下記表５〜８に示
す。(Example 2) 80 parts by weight of hardwood kraft pulp (LBKP) having a beating degree of 28 ° SR and a beating degree of 28 ° S
A pulp slurry obtained by adding 5 parts by weight of talc and 1 part by weight of a sulfuric acid band to 20 parts by weight of R softwood kraft pulp (NBKP) was paper-made with a paper machine so that the basis weight was 100 g / m 2, and smoothed. An aqueous dispersion paper having a degree of 7 seconds was obtained. The coating liquid C in Example 1 was applied to this in the same manner as in Example 1 and tested. The test results are shown in Tables 5 to 8 below.
【００２３】[0023]
【表５】 [Table 5]
【００２４】[0024]
【表６】 [Table 6]
【００２５】[0025]
【表７】 [Table 7]
【００２６】[0026]
【表８】 [Table 8]
【００２７】上記試験結果から明らかなとおり、本発明
によれば、水分散紙を用いた場合も、水溶紙の場合と同
様に印刷適性、耐水性、腰強度を備え、かつ、水中に廃
棄した際に良好な水分散性を示す水分散性基材を効率よ
く製造できることが分かる。As is clear from the above test results, according to the present invention, even when the water-dispersed paper is used, it has printability, water resistance, and waist strength as in the case of the water-soluble paper, and is discarded in water. At this time, it can be seen that a water-dispersible substrate exhibiting good water-dispersibility can be efficiently produced.
【００２８】[0028]
【発明の効果】このように、本発明の水分散性基材の製
造方法によれば、印刷適性、耐水性、腰強度を備え、か
つ、水中に廃棄した際に良好な水分散性を示す水分散性
基材を効率よく製造できる。As described above, according to the method for producing a water-dispersible substrate of the present invention, it has printability, water resistance, and waist strength, and exhibits good water dispersibility when it is discarded in water. A water-dispersible substrate can be efficiently produced.
Claims (5)
に水溶性樹脂のコーティング層を備える水分散性基材の
製造方法であって、前記水溶紙或いは水分散紙の片面或
いは両面に水と溶剤の混合溶媒に水溶性樹脂と親水性粉
体を含有させた塗工液を塗工して前記コーティング層を
形成することを特徴とする水分散性基材の製造方法。1. A method for producing a water-dispersible substrate having a coating layer of a water-soluble resin on one or both sides of water-soluble paper or water-dispersed paper, wherein water is applied to one or both sides of the water-soluble paper or water-dispersed paper. A method for producing a water-dispersible substrate, which comprises applying a coating solution containing a water-soluble resin and a hydrophilic powder to a mixed solvent of solvents to form the coating layer.
ールを用いると共に、前記混合溶媒として水と脂肪族低
級アルコールとの混合溶媒を用いることを特徴とする請
求項１記載の水分散性基材の製造方法。2. The method for producing a water-dispersible base material according to claim 1, wherein polyvinyl alcohol is used as the water-soluble resin, and a mixed solvent of water and an aliphatic lower alcohol is used as the mixed solvent. .
以上の粉体を用いることを特徴とする請求項１または２
記載の水分散性基材の製造方法。3. The gelatinization temperature of the hydrophilic powder is 75 ° C.
3. The powder according to claim 1 or 2 is used.
A method for producing the water-dispersible substrate described.
徴とする請求項３記載の水分散性基材の製造方法。4. The method for producing a water-dispersible substrate according to claim 3, wherein the hydrophilic powder is rice starch.
形分の１１〜５５重量％であることを特徴とする請求項
３または４記載の水分散性基材の製造方法。5. The method for producing a water-dispersible substrate according to claim 3, wherein the blending amount of the hydrophilic powder in the mixed liquid is 11 to 55% by weight of the solid content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6166109A JPH0813385A (en) | 1994-06-24 | 1994-06-24 | Production of water-dispersible substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6166109A JPH0813385A (en) | 1994-06-24 | 1994-06-24 | Production of water-dispersible substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0813385A true JPH0813385A (en) | 1996-01-16 |
Family
ID=15825193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6166109A Withdrawn JPH0813385A (en) | 1994-06-24 | 1994-06-24 | Production of water-dispersible substrate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0813385A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1046747A1 (en) * | 1999-04-20 | 2000-10-25 | Uni-Charm Corporation | Water-decomposable cleaning article and manufacturing method therefor |
| JP2007503306A (en) * | 2003-08-22 | 2007-02-22 | セラニーズ・インターナショナル・コーポレーション | Improved PVOH barrier performance on substrates |
| JP2010104987A (en) * | 2008-10-30 | 2010-05-13 | Kuraray Europe Gmbh | Method of curtain-coating substrate without using surfactant |
| JP2013501166A (en) * | 2009-08-03 | 2013-01-10 | ジョージア−パシフィック・フランス | Water-disintegrating fiber sheet, method for producing the fiber sheet, use of the fiber sheet in core production |
| JP2015509147A (en) * | 2012-01-04 | 2015-03-26 | ザ プロクター アンド ギャンブルカンパニー | Fibrous structure containing particles and method for producing the same |
| WO2018181850A1 (en) * | 2017-03-31 | 2018-10-04 | 健司 木下 | Water soluble paper-containing material for preparing sample and method for preparing sample using same |
| US12035861B2 (en) | 2012-01-04 | 2024-07-16 | The Procter & Gamble Company | Fibrous structures comprising particles and methods for making same |
-
1994
- 1994-06-24 JP JP6166109A patent/JPH0813385A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1046747A1 (en) * | 1999-04-20 | 2000-10-25 | Uni-Charm Corporation | Water-decomposable cleaning article and manufacturing method therefor |
| US6660334B2 (en) | 1999-04-20 | 2003-12-09 | Uni-Charm Corporation | Water-decomposable cleaning article and manufacturing method therefor |
| JP2007503306A (en) * | 2003-08-22 | 2007-02-22 | セラニーズ・インターナショナル・コーポレーション | Improved PVOH barrier performance on substrates |
| JP2010104987A (en) * | 2008-10-30 | 2010-05-13 | Kuraray Europe Gmbh | Method of curtain-coating substrate without using surfactant |
| JP2013501166A (en) * | 2009-08-03 | 2013-01-10 | ジョージア−パシフィック・フランス | Water-disintegrating fiber sheet, method for producing the fiber sheet, use of the fiber sheet in core production |
| JP2015509147A (en) * | 2012-01-04 | 2015-03-26 | ザ プロクター アンド ギャンブルカンパニー | Fibrous structure containing particles and method for producing the same |
| JP2017061768A (en) * | 2012-01-04 | 2017-03-30 | ザ プロクター アンド ギャンブル カンパニー | Fibrous structure comprising particles and method for producing the same |
| US12035861B2 (en) | 2012-01-04 | 2024-07-16 | The Procter & Gamble Company | Fibrous structures comprising particles and methods for making same |
| WO2018181850A1 (en) * | 2017-03-31 | 2018-10-04 | 健司 木下 | Water soluble paper-containing material for preparing sample and method for preparing sample using same |
| JPWO2018181850A1 (en) * | 2017-03-31 | 2020-02-13 | 一般社団法人生命科学教育研究所 | Sample preparation material containing water-soluble paper and sample preparation method using the same |
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