JP3905407B2 - Dirt release agent - Google Patents
Dirt release agent Download PDFInfo
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- JP3905407B2 JP3905407B2 JP2002106593A JP2002106593A JP3905407B2 JP 3905407 B2 JP3905407 B2 JP 3905407B2 JP 2002106593 A JP2002106593 A JP 2002106593A JP 2002106593 A JP2002106593 A JP 2002106593A JP 3905407 B2 JP3905407 B2 JP 3905407B2
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- soil release
- release agent
- cleaning
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Description
【0001】
【発明の属する技術分野】
本発明は、汚れ放出剤及び洗浄剤組成物に関する。
【0002】
【従来の技術及び発明が解決しようとする課題】
繊維の洗濯時に汚れ成分が繊維から放出され易くなるように、繊維に基剤を吸着させておくことが行われている。洗濯時に汚れ成分が繊維から放出され易くなれば、通常の洗浄方法に比べて極めて優れた洗浄効果をもたらすことができる。この様な効果は汚れ放出効果(ソイルリリース効果)といわれ、またこのような効果を発現する基剤は汚れ放出剤と一般には呼ばれている。汚れ放出剤に関しては、以下に示す様に、幾つかの知見が得られている。
【0003】
ポリエステル混紡布等の疎水性の合成繊維に対する汚れ放出剤としては、テレフタレートを主体とする化合物が効果的である事が知られている(US3416952、US3557039、US4795584等)。
【0004】
しかしながら、これらの汚れ放出剤はポリエステル等の疎水性の合成繊維に対しては極めて優れた効果を示すが、比較的親水性の木綿繊維に対しては充分な効果は発現されない。
【0005】
一方、親水性の木綿繊維に対する汚れ放出剤としては、例えばポリアミン誘導体(WO9742285)、窒素を含有するポリマー(DE19649288)等が知られている。しかしながらこれらの化合物も、繊維への吸着効率が、界面活性剤、温度、pH等の影響を強く受け、充分な効果が得られない。
【0006】
本発明の課題は、親水性の木綿布に対して皮脂汚れ等の汚れ成分への優れた汚れ放出効果、即ち、洗浄効果を発現出来る汚れ放出剤及びそれを配合した洗浄剤組成物を提供することである。
【0007】
【課題を解決するための手段】
本発明は、カルボキシメチル化セルロースをポリアミンと縮合して得られるアミド化物からなる汚れ放出剤、並びにこの汚れ放出剤を含有する洗浄剤組成物を提供する。
【0008】
【発明の実施の形態】
[汚れ放出剤]
本発明の汚れ放出剤は、布類の洗濯時に汚れの洗浄を行うと同時に衣類に吸着され、汚れ放出効果を付与するものである。例えば、木綿繊維の布を洗浄する際に、本発明の汚れ放出剤を洗浄剤等に加えて通常の洗浄を行うことによって、繊維表面に汚れ放出剤が吸着し、汚れ放出効果を付与することができる。即ち、布類を洗濯機中又は手洗いによって約3分〜2時間程浸漬又は洗浄し、水で充分すすいだ後、脱水乾燥させるという通常の洗浄サイクルを繰り返すことによって汚れ放出効果が布に付与され、高い洗浄効果が発現される。好ましい浸漬又は洗浄時間は5分以上1時間以内であり、より好ましくは8分以上20分以内である。また洗浄回数が多くなる程より優れた汚れ放出効果が得られる。
【0009】
本発明の汚れ放出剤は、洗浄剤に適用されるのみではなく、柔軟剤等の繊維処理剤や、漂白剤にも適用され、必要に応じて配合することによって、汚れ放出効果を付与することができる。
【0010】
本発明の汚れ放出剤であるアミド化物は、カルボキシメチル化セルロースをポリアミンと縮合して得られる。アミド化物の原料として用いるカルボキシメチル化セルロースは、一般に市販されている製品を用いてよい。カルボキシメチル化セルロースと縮合させるポリアミンとしては、エチレンジアミン、1,3−プロパンジアミン、ヘキサメチレンジアミン、ジエチレントリアミン、トリエチレンテトラミン、テトラエチレンペンタミン、ペンタエチレンヘキサミン、ポリエチレンイミン等が挙げられ、エチレンジアミン、1,3−プロパンジアミン、ジエチレントリアミン、トリエチレンテトラミン、テトラエチレンペンタミン、ペンタエチレンヘキサミンが好ましく、エチレンジアミン、1,3−プロパンジアミン、テトラエチレンペンタミン、ペンタエチレンヘキサミンがより好ましい。
【0011】
また、カルボキシメチル化セルロースとポリアミンを縮合させる際には、ポリアミンを過剰に用いることが好ましく、カルボキシメチル化セルロースとポリアミンの質量比(カルボキシメチル化セルロース/ポリアミン)は、1/10〜1/100が好ましく、1/10〜1/40がより好ましい。
【0012】
[洗浄剤組成物]
本発明の洗浄剤組成物は、上記のような本発明の汚れ放出剤を含有する。本発明の組成物中の汚れ放出剤の含有量は、0.01〜50質量%が好ましく、0.05〜20質量%が更に好ましく、1.0〜10質量%が特に好ましい。
【0013】
本発明の洗浄剤組成物は、更に界面活性剤を含有することが好ましい。界面活性剤としては、非イオン性界面活性剤、陰イオン性界面活性剤、両性界面活性剤、陽イオン性界面活性剤が挙げられる。界面活性剤を本発明の汚れ放出剤と併用すると、汚れ放出効果が増幅される。
【0014】
本発明に用いられる非イオン性界面活性剤としては、ポリオキシエチレンアルキルエーテルが好ましく、ポリオキシエチレンアルキルエーテルのアルキル基の炭素数は10〜20、更に12〜18、特に12〜14が好ましく、エチレンオキサイドの平均付加モル数は4〜16、更に4〜14、特に5〜12が好ましい。陰イオン性界面活性剤としては、アルキルベンゼンスルホン酸塩、アルキル又はアルケニル硫酸エステル塩、ポリオキシアルキレンアルキル又はアルケニルエーテル硫酸エステル塩、アルカンスルホン酸塩、脂肪酸塩、ポリオキシアルキレンアルキル又はアルケニルエーテルカルボン酸塩、α−スルホ脂肪酸塩又はエステル塩、アミノ酸型界面活性剤、N−アシルアミノ酸型界面活性剤等が挙げられ、アルキルベンゼンスルホン酸塩、アルキル又はアルケニル硫酸エステル塩が好ましく、アルキルベンゼンスルホン酸塩が特に好ましい。陰イオン性界面活性剤の対イオンとしては、アルカリ金属、アンモニウム、アルカノールアミン等が挙げられる。両性界面活性剤としてはアルキルジメチルアミノ酢酸ベタインや脂肪酸アミドプロピルベタイン等が挙げられる。陽イオン性界面活性剤としては第4級アンモニウム塩等が挙げられる。また、陰イオン性界面活性剤及び/又は非イオン性界面活性剤と両性界面活性剤及び/又は陽イオン性界面活性剤を併用することも出来る。
【0015】
本発明の洗浄剤組成物中の界面活性剤の含有量は、洗浄力の点で、0.1〜40質量%が好ましく、5〜35質量%が更に好ましく、10〜30質量%が特に好ましい。
【0016】
本発明の洗浄剤組成物は、更にポリカルボン酸系高分子化合物を含有することが好ましい。ポリカルボン酸系高分子化合物としては、ポリアクリル酸やアクリル酸とマレイン酸の共重合体、又はこれらの塩等が挙げられ、一般にはカルシウム捕捉剤や分散剤として洗浄剤に使用されるものである。また、ポリサッカライドにカルボン酸が付加したものや、グリオキシル酸の重合体等も用いることができる。ポリカルボン酸系高分子化合物の平均分子量は、8,000〜100,000が好ましく、10,000〜70,000が更に好ましい。
【0017】
ポリカルボン酸系高分子化合物は、本発明の汚れ放出剤と併用することによって、洗浄液中での分散性を促進し、繊維に対して汚れ放出剤が効率良く吸着するのを補助する作用を示す。本発明の洗浄剤組成物中のポリカルボン酸系高分子化合物の含有量は、洗浄力の点で、0.01〜50質量%が好ましく、0.05〜20質量%が更に好ましく、1.0〜10質量%が特に好ましい。
【0018】
本発明の洗浄剤組成物は、他にゼオライト(結晶性アルミノ珪酸塩)、キレート剤等のポリカルボン酸系高分子化合物以外の2価金属イオン捕捉剤、炭酸カリウム、炭酸ナトリウム、炭酸水素ナトリウム、珪酸ナトリウム等のアルカリ剤成分、プロテアーゼ、アミラーゼ、セルラーゼ、リパーゼ、ペクチナーゼ等の酵素成分、過炭酸ナトリウム、過ホウ酸ナトリウム等の漂白剤、珪酸マグネシウム等の過酸化物の安定化剤、ポリビニルピロリドン等の再汚染防止剤、亜硫酸塩、蛍光染料、色素、ケーキング防止剤、可溶化剤、香料等を必要に応じて配合することができる。
【0019】
【実施例】
例中の%は、特記しない限り質量%である。
【0020】
合成例1:カルボキシメチル化セルロースとテトラエチレンペンタミンの縮合物(以下化合物1という)の合成
テトラエチレンペンタミン400gを1Lの4つ口フラスコに入れ、カルボキシメチル化セルロース(和光純薬社製)20gを添加し、160℃下で窒素を少量吹き込みながら反応を行った。3時間の反応の後、反応混合物をろ過し、固体分をエタノール800mLで3回洗浄した後、乾燥し、カルボキシメチル化セルロースとテトラエチレンペンタミンの縮合物24gを得た。反応の前後で、IRスペクトルを用い、カルボキシメチル化セルロースに由来するカルボキシル基を示す1720cm-1付近の吸収の消失と、化合物1に由来するアミド基を示す1620cm-1付近の吸収の生成を確認した。
【0021】
合成例2:カルボキシメチル化セルロースとペンタエチレンヘキサミンの縮合物(以下化合物2という)の合成
ペンタエチレンヘキサミン400gを1Lの4つ口フラスコに入れ、カルボキシメチル化セルロース(和光純薬社製)20gを添加し、160℃下で窒素を少量吹き込みながら反応を行った。3時間の反応の後、反応混合物をろ過し、固体分をエタノール800mLで3回洗浄した後、乾燥し、カルボキシメチル化セルロースとペンタエチレンヘキサミンの縮合物22gを得た。反応の前後で、IRスペクトルを用い、カルボキシメチル化セルロースに由来するカルボキシル基を示す1720cm-1付近の吸収の消失と、化合物2に由来するアミド基を示す1620cm-1付近の吸収の生成を確認した。
【0022】
実施例1
表1に示す配合成分を用い、表1に示す組成の洗浄剤組成物を調製し、下記方法で皮脂汚れに対する洗浄性を評価した。結果を表1に示す。
【0023】
<洗浄性評価法>
(1)木綿繊維布の繰り返し洗浄及び汚染布の作成
表1に示す各洗浄剤組成物を4゜DH硬水に溶解し、0.06%の洗剤水溶液を調製し、NaOHにてpHを10.5に調整した。10×10cmの木綿布5枚を上記洗剤水溶液に入れ、20℃、10分間、100rpmでターゴトメーターにて撹拌洗浄した。流水下で濯いだ後、遠心脱水機にかけ充分水分を除去した後、25℃、50%RHの室内で1時間以上乾燥させた。本洗浄処理を3回繰り返し行った後に、洗浄処理後の木綿布に対し、綿実油60%、コレステロール10%、オレイン酸10%、パルミチン酸10%及び固体パラフィン10%からなる混合物100%にカーボンブラックを0.02%添加してなるモデル皮脂汚れを10×10cmあたりに2g均一に塗布して皮脂汚れ汚染布を作成した。
【0024】
(2)洗浄条件、洗浄方法及び評価方法
表1に示す比較品1の洗浄剤組成物を4゜DH硬水に溶解し、0.06%洗剤水溶液となるように調製し、NaOHを用いてpHを10.5に調整した。上記各洗浄剤組成物で処理した木綿汚染布5枚を洗剤水溶液に入れ、20℃、10分間、100rpmでターゴトメーターにて撹拌洗浄した。流水下で濯いだ後、アイロンプレス処理を行った。
【0025】
次いで洗浄前の原布、繰り返し洗浄後に調製した汚染布、最終洗浄後の汚染布の460nmにおける反射率を自記色彩計(島津製作所(株))にて測定し、次式から皮脂汚れ洗浄率(%)を算出し、5枚の汚染布についての平均値で示した。
【0026】
洗浄率(%)=[(最終洗浄後の反射率−汚染布調製後の反射率)/(原布の反射率−汚染布調製後の反射率)]×100
【0027】
【表1】
【0028】
注)
・汚れ放出剤
化合物1:合成例1で得られた化合物
化合物2:合成例2で得られた化合物
・ポリカルボン酸系高分子化合物
ポリアクリル酸Na:平均分子量10,000
AM:アクリル酸マレイン酸(モル比7/3)共重合体のナトリウム塩、平均分子量70,000
・界面活性剤
LAS:長鎖アルキル(C12)ベンゼンスルホン酸ナトリウム塩
SFE:α−スルホ脂肪酸(C16)メチルエステルナトリウム塩
AS:アルキル(C12)硫酸エステルナトリウム塩
AE:ポリオキシエチレン(6モル)アルキル(C12)エーテル
LB:アルキル(C12)ジメチルアミノ酢酸ベタイン
・その他の成分
ゼオライト:結晶性アルミノ珪酸塩、M2O・Al2O3・2SiO2・2H2O、平均粒子径2μm、イオン交換容量290CaCO3mg/g
共通成分:蛍光成分0.5%と、サビナーゼ12.0TtypeW(ノボザイムズ社製)、KAC−500G(花王株式会社製)、ターマミル60T(ノボザイムズ社製)を2:1:1で混合した酵素成分2.0%と芒硝であり、芒硝で組成物全体の量が100%になるように調整した。蛍光成分はCiba.S.C.社のTinopal CBS-XとTinopal AMS-GXを0.25%ずつ配合したもの。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soil release agent and a cleaning composition.
[0002]
[Prior art and problems to be solved by the invention]
A base is adsorbed on the fiber so that the dirt component is easily released from the fiber during the washing of the fiber. If the dirt component is easily released from the fibers during washing, it is possible to bring about an extremely excellent cleaning effect as compared with a normal cleaning method. Such an effect is called a soil release effect (soil release effect), and a base that exhibits such an effect is generally called a soil release agent. Regarding the soil release agent, several findings have been obtained as shown below.
[0003]
It is known that a compound mainly composed of terephthalate is effective as a soil release agent for hydrophobic synthetic fibers such as polyester blended fabrics (US3416952, US35557039, US4795854, etc.).
[0004]
However, these soil release agents exhibit an extremely excellent effect on hydrophobic synthetic fibers such as polyester, but do not exhibit a sufficient effect on relatively hydrophilic cotton fibers.
[0005]
On the other hand, as soil release agents for hydrophilic cotton fibers, for example, polyamine derivatives (WO9742285), nitrogen-containing polymers (DE19649288), and the like are known. However, these compounds are also strongly affected by the effect of the surfactant, temperature, pH, etc. on the adsorption efficiency to the fiber, and sufficient effects cannot be obtained.
[0006]
An object of the present invention is to provide a soil release agent capable of exhibiting an excellent soil release effect to soil components such as sebum stains on a hydrophilic cotton cloth, that is, a cleaning composition containing the same. That is.
[0007]
[Means for Solving the Problems]
The present invention provides a soil release agent comprising an amidation product obtained by condensing carboxymethylated cellulose with a polyamine, and a cleaning composition containing the soil release agent.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
[Soil release agent]
The soil release agent of the present invention is used to wash soil when washing fabrics, and at the same time, is adsorbed on clothes and imparts a soil release effect. For example, when washing a cotton fiber cloth, the soil release agent of the present invention is added to the cleaning agent and the like to perform a normal cleaning, so that the soil release agent is adsorbed on the fiber surface and imparts a soil release effect. Can do. That is, the cloth is given a soil release effect by repeating a normal washing cycle in which the cloth is immersed or washed for about 3 minutes to 2 hours in a washing machine or by hand washing, rinsed thoroughly with water, and then dehydrated and dried. High cleaning effect is expressed. The preferable immersion or cleaning time is 5 minutes or more and 1 hour or less, and more preferably 8 minutes or more and 20 minutes or less. In addition, as the number of washings increases, a more excellent soil release effect can be obtained.
[0009]
The soil release agent of the present invention is not only applied to cleaning agents, but also applied to fiber treatment agents such as softeners and bleaching agents, and imparts a soil release effect by blending as necessary. Can do.
[0010]
The amidated product as the soil release agent of the present invention is obtained by condensing carboxymethylated cellulose with a polyamine. As the carboxymethylated cellulose used as a raw material for the amidated product, a commercially available product may be used. Examples of the polyamine condensed with carboxymethylated cellulose include ethylenediamine, 1,3-propanediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, polyethyleneimine, and the like. 3-propanediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, and pentaethylenehexamine are preferable, and ethylenediamine, 1,3-propanediamine, tetraethylenepentamine, and pentaethylenehexamine are more preferable.
[0011]
Further, when the carboxymethylated cellulose and the polyamine are condensed, it is preferable to use an excess of the polyamine, and the mass ratio of the carboxymethylated cellulose to the polyamine (carboxymethylated cellulose / polyamine) is 1/10 to 1/100. Is preferable, and 1/10 to 1/40 is more preferable.
[0012]
[Cleaning composition]
The cleaning composition of the present invention contains the soil release agent of the present invention as described above. The content of the soil release agent in the composition of the present invention is preferably 0.01 to 50% by mass, more preferably 0.05 to 20% by mass, and particularly preferably 1.0 to 10% by mass.
[0013]
The cleaning composition of the present invention preferably further contains a surfactant. Examples of the surfactant include nonionic surfactants, anionic surfactants, amphoteric surfactants, and cationic surfactants. When a surfactant is used in combination with the soil release agent of the present invention, the soil release effect is amplified.
[0014]
As the nonionic surfactant used in the present invention, polyoxyethylene alkyl ether is preferable, and the alkyl group of the polyoxyethylene alkyl ether has 10 to 20, more preferably 12 to 18, particularly preferably 12 to 14, The average added mole number of ethylene oxide is preferably 4 to 16, more preferably 4 to 14, and particularly preferably 5 to 12. Examples of the anionic surfactant include alkylbenzene sulfonate, alkyl or alkenyl sulfate ester salt, polyoxyalkylene alkyl or alkenyl ether sulfate ester, alkane sulfonate, fatty acid salt, polyoxyalkylene alkyl or alkenyl ether carboxylate , Α-sulfo fatty acid salt or ester salt, amino acid type surfactant, N-acyl amino acid type surfactant and the like, alkylbenzene sulfonate, alkyl or alkenyl sulfate ester salt is preferable, and alkylbenzene sulfonate is particularly preferable. . Examples of the counter ion of the anionic surfactant include alkali metals, ammonium and alkanolamine. Examples of amphoteric surfactants include alkyldimethylaminoacetic acid betaines and fatty acid amidopropyl betaines. Examples of the cationic surfactant include quaternary ammonium salts. Further, an anionic surfactant and / or a nonionic surfactant and an amphoteric surfactant and / or a cationic surfactant can be used in combination.
[0015]
The content of the surfactant in the cleaning composition of the present invention is preferably 0.1 to 40% by mass, more preferably 5 to 35% by mass, and particularly preferably 10 to 30% by mass in terms of detergency. .
[0016]
The cleaning composition of the present invention preferably further contains a polycarboxylic acid polymer compound. Examples of polycarboxylic acid-based polymer compounds include polyacrylic acid, copolymers of acrylic acid and maleic acid, or salts thereof, and are generally used as cleaning agents as calcium scavengers and dispersants. is there. Moreover, what added carboxylic acid to the polysaccharide, the polymer of glyoxylic acid, etc. can be used. The average molecular weight of the polycarboxylic acid polymer compound is preferably 8,000 to 100,000, and more preferably 10,000 to 70,000.
[0017]
When used in combination with the soil release agent of the present invention, the polycarboxylic acid-based polymer compound promotes dispersibility in the cleaning liquid and has an effect of assisting the soil release agent to be efficiently adsorbed to the fibers. . The content of the polycarboxylic acid polymer compound in the cleaning composition of the present invention is preferably 0.01 to 50% by mass, more preferably 0.05 to 20% by mass in terms of detergency. 0-10 mass% is especially preferable.
[0018]
The cleaning composition of the present invention is a divalent metal ion scavenger other than polycarboxylic acid-based polymer compounds such as zeolite (crystalline aluminosilicate) and chelating agent, potassium carbonate, sodium carbonate, sodium bicarbonate, Alkaline agent components such as sodium silicate, enzyme components such as protease, amylase, cellulase, lipase, pectinase, bleaching agents such as sodium percarbonate and sodium perborate, peroxide stabilizers such as magnesium silicate, polyvinylpyrrolidone, etc. The anti-staining agent, sulfite, fluorescent dye, pigment, anti-caking agent, solubilizer, fragrance and the like can be blended as necessary.
[0019]
【Example】
Unless otherwise specified,% in the examples is% by mass.
[0020]
Synthesis Example 1: Synthesis of condensate of carboxymethylated cellulose and tetraethylenepentamine (hereinafter referred to as Compound 1) 400 g of tetraethylenepentamine was placed in a 1 L four-necked flask and carboxymethylated cellulose (Wako Pure Chemical Industries, Ltd.) 20 g was added, and the reaction was performed while blowing a small amount of nitrogen at 160 ° C. After the reaction for 3 hours, the reaction mixture was filtered, and the solid content was washed three times with 800 mL of ethanol and then dried to obtain 24 g of a condensate of carboxymethylated cellulose and tetraethylenepentamine. Before and after the reaction, IR spectrum was used to confirm the disappearance of absorption near 1720 cm −1 indicating the carboxyl group derived from carboxymethylated cellulose and the generation of absorption near 1620 cm −1 indicating the amide group derived from compound 1. did.
[0021]
Synthesis Example 2: Synthesis of a condensate of carboxymethylated cellulose and pentaethylenehexamine (hereinafter referred to as Compound 2) 400 g of pentaethylenehexamine is placed in a 1 L four-necked flask, and 20 g of carboxymethylated cellulose (manufactured by Wako Pure Chemical Industries, Ltd.) is added. The reaction was conducted at 160 ° C. while blowing a small amount of nitrogen. After the reaction for 3 hours, the reaction mixture was filtered, and the solid content was washed three times with 800 mL of ethanol and then dried to obtain 22 g of a condensate of carboxymethylated cellulose and pentaethylenehexamine. Before and after the reaction, the IR spectrum was used to confirm the disappearance of absorption near 1720 cm −1 indicating the carboxyl group derived from carboxymethylated cellulose and the generation of absorption near 1620 cm −1 indicating the amide group derived from compound 2. did.
[0022]
Example 1
A cleaning composition having the composition shown in Table 1 was prepared using the formulation components shown in Table 1, and the detergency against sebum soil was evaluated by the following method. The results are shown in Table 1.
[0023]
<Detergency evaluation method>
(1) Repeated washing of cotton fiber cloth and preparation of contaminated cloth Each detergent composition shown in Table 1 was dissolved in 4 ° DH hard water to prepare a 0.06% aqueous detergent solution, and the pH was adjusted to 10. with NaOH. Adjusted to 5. Five pieces of 10 × 10 cm cotton cloth were placed in the detergent aqueous solution and washed by stirring with a targotometer at 20 ° C. for 10 minutes at 100 rpm. After rinsing under running water, the water was removed sufficiently by a centrifugal dehydrator, and then dried in a room at 25 ° C. and 50% RH for 1 hour or more. After repeating this washing process three times, 100% of a mixture of 60% cottonseed oil, 10% cholesterol, 10% oleic acid, 10% palmitic acid and 10% solid paraffin is added to the washed cotton cloth. A model sebum soil with 0.02% added was uniformly applied in an amount of 2 g per 10 × 10 cm to prepare a sebum soil-contaminated cloth.
[0024]
(2) Cleaning conditions, cleaning method and evaluation method The cleaning composition of Comparative product 1 shown in Table 1 was dissolved in 4 ° DH hard water to prepare a 0.06% detergent aqueous solution, and the pH was adjusted using NaOH. Was adjusted to 10.5. Five cotton-stained cloths treated with each of the cleaning compositions described above were placed in a detergent aqueous solution and washed by stirring with a tartometer at 20 ° C. for 10 minutes at 100 rpm. After rinsing under running water, an iron press treatment was performed.
[0025]
Next, the reflectance at 460 nm of the raw cloth before washing, the contaminated cloth prepared after repeated washing, and the contaminated cloth after final washing was measured with a self-recording colorimeter (Shimadzu Corporation), and the sebum dirt washing rate ( %) Was calculated and shown as an average value for five contaminated cloths.
[0026]
Washing rate (%) = [(reflectance after final cleaning−reflectance after preparation of contaminated fabric) / (reflectance of raw fabric−reflectance after preparation of contaminated fabric)] × 100
[0027]
[Table 1]
[0028]
note)
Soil releaser compound 1: Compound obtained in Synthesis Example 1 2: Compound obtained in Synthesis Example 2 Polycarboxylic acid polymer compound Polyacrylic acid Na: Average molecular weight 10,000
AM: sodium salt of acrylic acid maleic acid (molar ratio 7/3) copolymer, average molecular weight 70,000
Surfactant LAS: long chain alkyl (C 12 ) benzenesulfonic acid sodium salt SFE: α-sulfo fatty acid (C 16 ) methyl ester sodium salt AS: alkyl (C 12 ) sulfate ester sodium salt AE: polyoxyethylene (6 moles) alkyl (C 12) ether LB: alkyl (C 12) acid betaine and other ingredients zeolites: crystalline aluminosilicates, M 2 O · Al 2 O 3 · 2SiO 2 · 2H 2 O, average particle diameter 2 μm, ion exchange capacity 290 CaCO 3 mg / g
Common component: Enzyme component 2 in which fluorescent component 0.5%, sabinase 12.0TtypeW (manufactured by Novozymes), KAC-500G (manufactured by Kao Corporation), Termamyl 60T (manufactured by Novozymes) were mixed at a ratio of 2: 1: 1. 0.0% and mirabilite, and the amount of the entire composition was adjusted to 100% with mirabilite. The fluorescent component is a combination of 0.25% each of Cino.SC's Tinopal CBS-X and Tinopal AMS-GX.
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WO2019111948A1 (en) | 2017-12-06 | 2019-06-13 | 花王株式会社 | Soil release agent |
US11401350B2 (en) | 2017-12-06 | 2022-08-02 | Kao Corporation | Polysaccharide derivative |
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