JPS6317880B2 - - Google Patents
Info
- Publication number
- JPS6317880B2 JPS6317880B2 JP6476379A JP6476379A JPS6317880B2 JP S6317880 B2 JPS6317880 B2 JP S6317880B2 JP 6476379 A JP6476379 A JP 6476379A JP 6476379 A JP6476379 A JP 6476379A JP S6317880 B2 JPS6317880 B2 JP S6317880B2
- Authority
- JP
- Japan
- Prior art keywords
- starch
- graft
- methacrylate
- acrylate
- detergent
- 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
Links
- 239000003599 detergent Substances 0.000 claims description 23
- 229920000881 Modified starch Polymers 0.000 claims description 16
- 229920002472 Starch Polymers 0.000 claims description 16
- 239000004368 Modified starch Substances 0.000 claims description 15
- 235000019698 starch Nutrition 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 12
- 239000008107 starch Substances 0.000 claims description 11
- 239000000178 monomer Substances 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 claims description 3
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 229940047670 sodium acrylate Drugs 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 229940048053 acrylate Drugs 0.000 claims description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- SONHXMAHPHADTF-UHFFFAOYSA-M sodium;2-methylprop-2-enoate Chemical compound [Na+].CC(=C)C([O-])=O SONHXMAHPHADTF-UHFFFAOYSA-M 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 230000002265 prevention Effects 0.000 description 10
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 7
- 229920000742 Cotton Polymers 0.000 description 6
- 229920002994 synthetic fiber Polymers 0.000 description 6
- 239000012209 synthetic fiber Substances 0.000 description 6
- 229920002261 Corn starch Polymers 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000010186 staining Methods 0.000 description 5
- 239000008120 corn starch Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920000578 graft copolymer Polymers 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 235000019426 modified starch Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 244000017020 Ipomoea batatas Species 0.000 description 2
- 235000002678 Ipomoea batatas Nutrition 0.000 description 2
- 240000003183 Manihot esculenta Species 0.000 description 2
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 239000001254 oxidized starch Substances 0.000 description 2
- 235000013808 oxidized starch Nutrition 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001592 potato starch Polymers 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- 229920000945 Amylopectin Polymers 0.000 description 1
- 229920000856 Amylose Polymers 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 235000019759 Maize starch Nutrition 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- -1 ethylene, propylene, butene Chemical class 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000010559 graft polymerization reaction Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229940100486 rice starch Drugs 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 235000019794 sodium silicate Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000271 synthetic detergent Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 description 1
- 229940100445 wheat starch Drugs 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
Description
本発明は洗剤組成物、さらに詳しくは、衣類等
の洗濯に際して、きわめてすぐれた再汚染防止効
果を発揮する洗剤組成物に関する。
衣類等の洗濯においては、被洗濯物から洗い出
された汚れ物質が、一旦きれいになつた被洗濯物
を再汚染することがある。これを防止するため、
従来から、いわゆる合成洗剤のような洗剤には再
汚染防止剤が配合され、かかる再汚染防止剤とし
てカルボキシメチルセルロース（以下、CMCと
いう）が一般に用いられている。
しかしながら、CMCは木綿製品に対しては良
好な再汚染防止効果を発揮するが、ポリエステ
ル、ナイロン、アクリル、ビニロンなどの合成繊
維製品や、合成繊維と木綿などの混紡品に対して
ほとんど効果がなく、場合によつては、CMCを
用いるとかえつて再汚染しやすくなることもあ
る。
本発明者らはグラフト変性澱粉について種々研
究を重ねる間に、ある種のグラフト変性澱粉が洗
剤の再汚染防止剤としてすぐれた効果を発揮する
ことを見出し、本発明を完成するにいたつた。
すなわち、本発明は、澱粉を基幹重合体とし、
アクリル酸、メタクリル酸、アクリル酸ナトリウ
ム、メタクリル酸ナトリウム、アクリルアミド、
メタクリルアミド、ヒドロキシエチルアクリレー
ト、ヒドロキシエチルメタクリレート、ヒドロキ
シプロピルアクリレート、ヒドロキシプロピルメ
タクリレート、ポリエチレングリコールアクリレ
ート（末端のヒドロキシ基はエーテル化またはエ
ステル化されていてもよい）ポリエチレングリコ
ールメタクリレート（末端のヒドロキシ基はエー
テル化またはエステル化されていてもよい）およ
び酢酸ビニルからなる群から選ばれる１種以上の
単量体を、該澱粉重量100に対して0.5〜100の重
量割合でグラフト重合させ、要すれば、加水分解
することにより得られる水溶性グラフト変性澱粉
を、組成物の全固形分に対して0.05〜５重量％配
合してなる洗剤組成物を提供するものである。本
発明の洗剤組成物は、作用機序は明らかではない
が、配合したグラフト変性澱粉が木綿製品はもと
より、合成繊維製品や混紡品に対してもきわめて
すぐれた再汚染防止効果を示すので、木綿、合成
繊維、混紡を問わず、被洗濯物の再汚染が充分防
止できる。しかも、グラフト変性澱粉はCMCよ
りもはるかに生物分解性がよく、本発明の洗剤組
成物は公害防止の観点からもすぐれている。
かくして、本発明の洗剤組成物には、好ましく
は、その全固形分に対して0.05〜５％（重量％、
以下同じ）のグラフト変性澱粉を配合する。配合
量はあまり少なすぎても効果が期待できず、ま
た、多すぎてもあまり添加効果が向上せず、経済
的に不利となる。
用いるグラフト変性澱粉は、澱粉に、公知の方
法に従つて、前記した付加重合性を有する水溶性
の単量体および加水分解により水溶性となる単量
体から選ばれる少なくとも１種の単量体をグラフ
ト重合させ、要すれば、重合のいずれかの段階で
加水分解して得られる水溶性グラフト変性澱粉で
ある。
基幹重合体となる澱粉としては、馬鈴薯澱粉、
甘藷澱粉、小麦澱粉、トウモロコシ澱粉、モチト
ウモロコシ澱粉、米澱粉、タピオカ澱粉、サゴ澱
粉などの天然澱粉やこれらの分解物、アミロース
やアミロペクチン分画物、架橋澱粉、エーテル化
澱粉、エステル化澱粉、酸化澱粉、デキストリ
ン、酸処理澱粉などの化工澱粉、小麦粉、トウモ
ロコシ粉、切干甘藷、切干タピオカなどの澱粉含
有物が挙げられる。
該グラフト変性澱粉は、所望により、そのグラ
フト側鎖の構成単位にさらに、前記の単量体以外
の単量体、例えば、スチレン、エチレン、プロピ
レン、ブテンなどから形成される単量体単位を有
していてもよい。
本発明で用いるグラフト変性澱粉においては、
そのグラフト率は適宜選択できるが、再汚染防止
効果の観点から基幹重合体となる澱粉の重量100
に対して、グラフト側鎖を形成する水溶性単量体
および／または加水分解によつて水溶性となる単
量体を0.5〜100の重量割合でグラフト重合させる
ことが好ましい。
本発明の洗剤組成物は、常法に従つて、粉末洗
剤、液体洗剤のような通常の剤形とすることがで
き、他の配合成分は通常用いられるものいずれで
もよい。例えば、アニオン系、ノニオン系の界面
活性剤、ポリリン酸塩のようなビルダー、ケイ酸
ナトリウム、ホウ砂、硫酸ナトリウム、漂白螢光
剤、低温安定剤、皮膚刺激防止剤、エタノール、
水、香料などが適宜配合できる。
つぎに実施例を挙げて本発明をさらに詳しく説
明する。
実施例 １
粉末洗剤
成 分 ％
トリポリリン酸（洗剤用） 33.8
ケイ酸ナトリウム 6.7
ノニオン系界面活性剤（新日本乳化社製Newcol
−1310） 4.5
ドデシルベンゼンスルホン酸ナトリウム 9.0
ホウ砂 22.5
硫酸ナトリウム 22.5
酸化澱粉−ポリアクリル酸ナトリウムグラフト共
重合体（酸化澱粉：アクリル酸ナトリウムの重量
比100：８） 1.0
この処方に従い、常法により粉末洗剤を得た。
実施例 ２
前記実施例１の処方において、グラフト変性澱
粉として、酸処理澱粉−ポリヒドロキシプロピル
メタクリレートグラフト共重合体（酸化澱粉：ヒ
ドロキシプロピルメタクリレートの重量比100：
2.5）１％を用いて粉末洗剤を得た。
実施例 ３
前記実施例１の処方において、グラフト変性澱
粉として、トウモロコシ澱粉−ポリビニルアルコ
ールグラフト共重合体（トウモロコシ澱粉：酢酸
ビニルの重量比100：５、ケン化度63％）１％を
用いて粉末洗剤を得た。
前記実施例１〜３の粉末洗剤を用いてつぎのよ
うに再汚染防止テストを行なつた。
水１に各洗剤４ｇ、汚れ物質としてカーボン
ブラツク0.25ｇを入れて試験液を調製した。試験
布として木綿布、木綿−ポリエステル（１：２）
混紡布、アクリル布およびナイロン−６布（いず
れも５×10cm）を用い、各々、該試験液100ml中
に入れ、温度20℃でラウンダオメーター（スチー
ルボール10個）で30分間洗濯した。洗濯後、試験
布を冷水で２回すすぎ、室温で自然乾燥させた。
テスト前後の試験布の反射率を簡易型光電色差計
（緑色フイルター使用）により測定し（酸化マグ
ネシウム白板の反射率を100、完全吸収を０とす
る）、次式より再汚染率を算出した。
再汚染率＝（テスト前の試験布の反射率）−（テ
スト後の試験布の反射率）／テスト前の試験布の反射率
×100
各洗剤を用いた場合の再汚染率をつぎの第１表
に示す（再汚染率が小さいほど再汚染防止効果が
大きい）。なお、前記実施例１の処方において、
グラフト変性澱粉の代りにCMC1％または未変性
トウモロコシ澱粉１％を用いて得られた粉末洗剤
について同様にテストした結果も示す。
The present invention relates to a detergent composition, and more particularly to a detergent composition that exhibits an extremely excellent recontamination prevention effect when washing clothes and the like. 2. Description of the Related Art When washing clothes, etc., soiled substances washed out from the laundry items may recontaminate the cleaned items. To prevent this,
BACKGROUND ART Detergents such as so-called synthetic detergents have conventionally been blended with re-staining preventive agents, and carboxymethyl cellulose (hereinafter referred to as CMC) has generally been used as such re-staining preventive agents. However, although CMC exhibits a good recontamination prevention effect on cotton products, it has little effect on synthetic fiber products such as polyester, nylon, acrylic, and vinylon, or blended products such as synthetic fibers and cotton. In some cases, the use of CMC may actually make recontamination more likely. While carrying out various studies on graft-modified starch, the present inventors discovered that a certain kind of graft-modified starch exhibits an excellent effect as a detergent re-staining prevention agent, and has completed the present invention. That is, the present invention uses starch as a backbone polymer,
Acrylic acid, methacrylic acid, sodium acrylate, sodium methacrylate, acrylamide,
Methacrylamide, hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, polyethylene glycol acrylate (the terminal hydroxy group may be etherified or esterified) polyethylene glycol methacrylate (the terminal hydroxy group may be etherified) or esterified) and vinyl acetate at a weight ratio of 0.5 to 100 based on 100 of the weight of the starch, and if necessary, add hydration. The present invention provides a detergent composition containing 0.05 to 5% by weight of water-soluble graft-modified starch obtained by decomposition based on the total solid content of the composition. Although the mechanism of action of the detergent composition of the present invention is not clear, the blended graft-modified starch exhibits an extremely excellent recontamination prevention effect not only on cotton products but also on synthetic fiber products and blended textile products. Re-contamination of laundry items can be sufficiently prevented regardless of whether they are made of synthetic fibers or blended fabrics. Furthermore, graft-modified starch has much better biodegradability than CMC, and the detergent composition of the present invention is also excellent from the viewpoint of pollution prevention. Thus, the detergent composition of the invention preferably contains from 0.05 to 5% (wt%) based on its total solids content.
(same below) is blended with graft-modified starch. If the amount is too small, no effect can be expected, and if it is too large, the effect of addition will not be improved much, which is economically disadvantageous. The graft-modified starch used is obtained by adding at least one monomer selected from the above-mentioned water-soluble monomers having addition polymerizability and monomers that become water-soluble by hydrolysis to starch according to a known method. It is a water-soluble graft-modified starch obtained by graft polymerization and, if necessary, hydrolysis at any stage of the polymerization. The starch that serves as the backbone polymer includes potato starch,
Natural starches such as sweet potato starch, wheat starch, corn starch, waxy corn starch, rice starch, tapioca starch, sago starch and their decomposition products, amylose and amylopectin fractions, cross-linked starches, etherified starches, esterified starches, oxidized Examples include modified starches such as starch, dextrin, and acid-treated starch, and starch-containing substances such as wheat flour, corn flour, dried sweet potato, and dried tapioca. The graft-modified starch may optionally have a monomer unit formed from a monomer other than the above-mentioned monomers, such as styrene, ethylene, propylene, butene, etc., in the structural units of the graft side chain. You may do so. In the graft modified starch used in the present invention,
The grafting rate can be selected as appropriate, but from the viewpoint of preventing recontamination, the weight of starch that becomes the backbone polymer is 100%.
On the other hand, it is preferable to graft-polymerize the water-soluble monomer that forms the graft side chain and/or the monomer that becomes water-soluble by hydrolysis at a weight ratio of 0.5 to 100. The detergent composition of the present invention can be made into a conventional dosage form such as a powder detergent or a liquid detergent according to a conventional method, and the other ingredients may be any of those commonly used. For example, anionic and nonionic surfactants, builders such as polyphosphates, sodium silicate, borax, sodium sulfate, bleaching fluorescent agents, low temperature stabilizers, skin irritation inhibitors, ethanol,
Water, fragrance, etc. can be added as appropriate. Next, the present invention will be explained in more detail with reference to Examples. Example 1 Powder detergent ingredients % Tripolyphosphoric acid (for detergent) 33.8 Sodium silicate 6.7 Nonionic surfactant (Newcol manufactured by Shin Nippon Nyuka Co., Ltd.)
-1310) 4.5 Sodium dodecylbenzenesulfonate 9.0 Borax 22.5 Sodium sulfate 22.5 Oxidized starch-sodium polyacrylate graft copolymer (oxidized starch:sodium acrylate weight ratio 100:8) 1.0 Powder according to this recipe by a conventional method I got detergent. Example 2 In the formulation of Example 1 above, as the graft-modified starch, acid-treated starch-polyhydroxypropyl methacrylate graft copolymer (oxidized starch: hydroxypropyl methacrylate weight ratio 100:
2.5) A powder detergent was obtained using 1%. Example 3 In the formulation of Example 1, 1% of corn starch-polyvinyl alcohol graft copolymer (maize starch:vinyl acetate weight ratio 100:5, degree of saponification 63%) was used as the graft-modified starch to form a powder. I got detergent. A recontamination prevention test was conducted using the powdered detergents of Examples 1 to 3 as follows. A test solution was prepared by adding 4 g of each detergent and 0.25 g of carbon black as a stain substance to 1 part of water. Cotton cloth, cotton-polyester (1:2) as test cloth
A blended fabric, an acrylic fabric, and a nylon-6 fabric (all 5 x 10 cm) were placed in 100 ml of the test solution and washed in a round-o-meter (10 steel balls) at a temperature of 20°C for 30 minutes. After washing, the test fabrics were rinsed twice with cold water and air-dried at room temperature.
The reflectance of the test cloth before and after the test was measured using a simple photoelectric color difference meter (using a green filter) (reflectance of the magnesium oxide white plate is 100, complete absorption is 0), and the recontamination rate was calculated from the following formula. Re-staining rate = (Reflectance of the test cloth before the test) - (Reflectance of the test cloth after the test) / Reflectance of the test cloth before the test × 100 The re-staining rate when using each detergent is calculated as follows. Table 1 shows the results (the smaller the recontamination rate, the greater the recontamination prevention effect). In addition, in the prescription of Example 1,
The results of similar tests on powdered detergents obtained using 1% CMC or 1% unmodified corn starch in place of the graft-modified starch are also shown.
【表】
＊：テスト前の反射率
第１表に示すごとく、未変性トウモロコシ澱粉
の配合では再汚染防止効果はほとんど発揮されな
い。また、CMC配合洗剤は木綿布については再
汚染防止効果がすぐれているが、合成繊維、混紡
に対してはその効果がほとんどない。これに対し
て本発明の洗剤は木綿のみならず、合成繊維、混
紡に対してもすぐれた再汚染防止効果を発揮す
る。[Table] *: Reflectance before test As shown in Table 1, the combination of unmodified corn starch hardly exhibits any recontamination prevention effect. Furthermore, although CMC-containing detergents have excellent recontamination prevention effects on cotton fabrics, they have little effect on synthetic fibers and blended fabrics. On the other hand, the detergent of the present invention exhibits an excellent recontamination prevention effect not only on cotton but also on synthetic fibers and blended fabrics.
Claims (1)
リル酸、アクリル酸ナトリウム、メタクリル酸ナ
トリウム、アクリルアミド、メタクリルアミド、
ヒドロキシエチルアクリレート、ヒドロキシエチ
ルメタクリレート、ヒドロキシプロピルアクリレ
ート、ヒドロキシプロピルメタクリレート、ポリ
エチレングリコールアクリレート（末端のヒドロ
キシ基はエーテル化またはエステル化されていて
もよい）ポリエチレングリコールメタクリレート
（末端のヒドロキシ基はエーテル化またはエステ
ル化されていてもよい）および酢酸ビニルからな
る群から選ばれる１種以上の単量体を、該澱粉重
量100に対して0.5〜100の重量割合でグラフト重
合させ、要すれば、加水分解することにより得ら
れる水溶性グラフト変性澱粉を、組成物の全固形
分に対して0.05〜５重量％配合してなることを特
徴とする洗剤組成物。1 Starch is used as the backbone polymer, and acrylic acid, methacrylic acid, sodium acrylate, sodium methacrylate, acrylamide, methacrylamide,
Hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, polyethylene glycol acrylate (the terminal hydroxy group may be etherified or esterified) polyethylene glycol methacrylate (the terminal hydroxy group may be etherified or esterified) Graft-polymerizing one or more monomers selected from the group consisting of (optional) and vinyl acetate at a weight ratio of 0.5 to 100 based on 100 weight of the starch, and if necessary, hydrolyzing. 1. A detergent composition comprising 0.05 to 5% by weight of the water-soluble graft-modified starch obtained by the method based on the total solid content of the composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6476379A JPS55155097A (en) | 1979-05-24 | 1979-05-24 | Detergent composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6476379A JPS55155097A (en) | 1979-05-24 | 1979-05-24 | Detergent composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55155097A JPS55155097A (en) | 1980-12-03 |
| JPS6317880B2 true JPS6317880B2 (en) | 1988-04-15 |
Family
ID=13267544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6476379A Granted JPS55155097A (en) | 1979-05-24 | 1979-05-24 | Detergent composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55155097A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4003172A1 (en) * | 1990-02-03 | 1991-08-08 | Basf Ag | PFROPOPOPOLYMERISATES OF MONOSACCHARIDES, OLIGOSACCHARIDES, POLYSACCHARIDES AND MODIFIED POLYSACCHARIDES, PROCESS FOR THEIR PREPARATION AND THEIR USE |
| DE4016002A1 (en) * | 1990-05-18 | 1991-11-21 | Basf Ag | USE OF WATER-SOLUBLE OR WATER-DISPERSIBLE PEPPER PROTEINS AS ADDITION TO WASHING AND CLEANING AGENTS |
| FR2663948B1 (en) * | 1990-07-02 | 1994-06-03 | Rhone Poulenc Chimie | DETERGENT COMPOSITION CONTAINING A BIODEGRADABLE GRAFT POLYSACCHARIDE. |
| US5763381A (en) * | 1995-09-13 | 1998-06-09 | National Starch And Chemical Investment Holding Corporation | Starched-based adjuncts for detergents |
-
1979
- 1979-05-24 JP JP6476379A patent/JPS55155097A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55155097A (en) | 1980-12-03 |
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