JP3209777B2 - Liquid detergent composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid detergent composition for clothing having an excellent ability to prevent re-contamination.

[0002]

2. Description of the Related Art When washing clothes, they are detached from their substrates,
A part of the dirt dispersed in the cleaning liquid is often deposited on the substrate again, thereby lowering the cleaning efficiency or causing yellowing or darkening of clothes. The method most commonly used by those skilled in the art to prevent this is to use sodium cellulose glycolate [generic name, carboxymethylcellulose (hereinafter abbreviated as CMC)] as a recontamination inhibitor. CMC is excellent in recontamination prevention power, but when it is used for a liquid detergent for clothing, it is often difficult to dissolve in a formulation in which an inorganic or organic builder is blended in the detergent. It is said that CMC can hardly be used in liquid clothing detergents.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid detergent composition for clothing having an excellent ability to prevent re-contamination.

[0004]

The liquid detergent composition of the present invention comprises a base comprising at least one selected from an anionic surfactant, a nonionic surfactant and an amphoteric surfactant, and a water-insoluble surfactant. The plant fiber material is separated and contains water-soluble hemicellulose produced by extraction.The water-soluble hemicellulose contains arabinose, xylose, galactose and uronic acid as its main constituent sugars, and as a re-contamination inhibitor. It is characterized by being contained.

[0005]

In the present invention, anionic surfactants used as bases include, for example, alkylbenzene sulfonates, α-olefin sulfonates, sodium lauryl sulfate, triethanolamine lauryl sulfate, ammonium lauryl sulfate, and lauryl sulfate. Higher alcohol sulfates such as sodium ether sulfate, higher alcohol phosphates,
Acyl sarcosine salts such as cocoyl sarcosine sodium, lauroyl sarcosine sodium, cocoyl sarcosine triethanolamine, and lauroyl sarcosine triethanolamine, cocoyl methyl-β-alanine sodium, lauroyl methyl-β-alanine sodium, cocoyl methyl-β-alanine triethanol Amines and acylmethyl-β-alanine salts such as lauroylmethyl-β-alanine triethanolamine;
Monosodium cocoyl-L-glutamate, monosodium N-lauroyl-L-glutamate, monosodium N-myristoyl-L-glutamate and N-
Acyl glutamates such as cocoyl-L-glutamate monotriethanolamine; sodium cocoyl methyl taurate and sodium lauroyl methyl taurate; acylmethyl tauric acid; lauryl disodium sulfosuccinate; POE (1-4) lauryl disulfosuccinate Sodium sulfosuccinate POE (5)
It can be selected from sulfosuccinic acid surfactants such as lauroylethanolamide disodium and disodium amide amide sulfosuccinate.

The amphoteric surfactants used as a base in the present invention include, for example, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine and 2-alkyl-N-carboxyethyl-N-beta.
Alkyl imidazolinium betaine-type amphoteric surfactants of hydroxyethyl imidazolinium betainic acid, amidopropyl betaine-type amphoteric surfactants such as coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine, and lauric acid amidopropyldimethylaminoacetic acid betaine, and It can be selected from alkyl betaine type amphoteric surfactants such as lauryl betaine.

In the present invention, nonionic surfactants used as a base include, for example, fatty acid alkanolamide type nonionic surfactants such as fatty acid diethanolamide, fatty acid monoethanolamide, and POE fatty acid monoethanolamide, and amine oxides. , PO
It can be selected from E higher alcohol ethers, POE alkyl phenyl ethers and the like.

[0008] In the present invention, the water-soluble hemicellulose used as a recontamination inhibitor is a water-soluble plant-derived hemicellulose obtained by decomposing and extracting a water-insoluble plant fiber material, and preferably has an average molecular weight. It has 50,000 to 1,000,000 (more preferably, 100,000 to 400,000).

The water-soluble hemicellulose used in the present invention is derived from plants, especially oil seeds and cereals, and is preferably soybean, particularly soybean cotyledon. Therefore, the water-insoluble plant fiber material may be a protein-containing material, and among them, okara is most preferred.

The constituent sugars of the water-soluble hemicellulose used in the present invention include rhamnose, fucose, arabinose, xylose, galactose, glucose and uronic acid. The water-soluble hemicellulose may not contain rhamnose, fucose, or glucose depending on its average molecular weight, or may not contain either or both rhamnose or fucose depending on the type of plant.
Therefore, the water-soluble hemicellulose used in the present invention contains arabinose, xylose, galactose, and uronic acid as its main constituent sugars. The average molecular weight of the water-soluble hemicellulose of the present invention is 0.1 M N using standard pullulan [manufactured by Showa Denko KK] as a standard substance.
It can be determined by the limiting viscosity method of measuring the viscosity in the aNO ³ solution. The composition of the saccharide was determined by the following analytical method. Measurement of uronic acid: Blumenkrantz method Neutral sugar measurement: alditol acetate method

An example of a method for producing the water-soluble hemicellulose used in the present invention will be described. Oilseed (soy, palm, palm, corn, cottonseed, etc.) (usually grains without oils and fats),
Using plant fiber materials such as cereals (rice, wheat, etc.) (usually excluding starch etc.) as raw materials, under acidic to alkaline conditions, preferably under pH (usually acidic) around the isoelectric point of each protein Decompose by heating (preferably at 80 to 130 ° C) to separate the water-soluble fraction, preferably by treating with activated carbon, resin, or ethanol to remove hydrophobic substances and low-molecular substances. To obtain functional hemicellulose. In this production method, it is preferable to perform the thermal decomposition under acidic or alkaline conditions rather than the simple thermal decomposition (for example, hot water) because the yield is high. In addition, in the thermal decomposition under acidic conditions, it is more preferable to perform the thermal decomposition near the isoelectric point (usually acidic) of the protein of the raw material plant fiber material in the thermal decomposition under acidic conditions as compared with the thermal decomposition under alkaline conditions. In this case, the protein is less likely to be dissolved in the decomposed fraction as compared with the alkaline decomposition, and a step of removing the protein later is not necessarily required.

[0012] The content of the water-soluble hemicellulose contained in the liquid detergent composition of the present invention is preferably 0.01 to 10%, more preferably 0.05 to 10% based on the content of the composition. ~ 8%. The content is 0.01
Below is less effective, but it need not be more than 10%.

The liquid detergent composition of the present invention may contain, if necessary, inorganic builders such as sodium tripolyphosphate, potassium pyrophosphate, sodium sulfate, sodium silicate, and sodium carbonate, sodium citrate, and malic acid. Organic builders such as sodium, solubilizing agents such as sodium xylene sulfonate, glycol, ethanol, etc., chelating agents such as edetate, enzymes, fluorescent agents,
At least one of fragrances, pigments and the like can be added.

The method for producing the liquid detergent composition of the present invention is not particularly limited, and a conventional method used in the art can be used.

The water-soluble hemicellulose used in the present invention can be applied not only to liquid products but also to solid products.

Hereinafter, the present invention will be described in detail with reference to examples.

[0017]

EXAMPLES Production Example 1 ( Production example of soybean hemicellulose) To raw okara obtained in the isolated soybean protein production process, 2 parts by weight of water was added, and the pH was adjusted to 4.5 with hydrochloric acid. The mixture was hydrolyzed at 120 ° C. for 1.5 hours, cooled, centrifuged (10,000 g × 3 minutes), and separated into a supernatant and a precipitate. The precipitate was further washed with water of the same weight and washed with water and centrifuged. The supernatant was combined with the supernatant, and the mixture was subjected to an activated carbon column treatment, and the resulting solution was dried to obtain a water-soluble hemicellulose ( B) was obtained. Furthermore,
This water-soluble hemicellulose is dissolved in 0.5% saline,
The reprecipitation was repeated three times so that the ethanol concentration became 50%, and the solution was desalted using an ion exchange resin [Amberlite 1R-120B manufactured by Organo Co., Ltd.] to obtain water-soluble hemicellulose (b). Separately, in the above method, water-soluble hemicellulose (c) was similarly produced without treatment with an activated carbon column. The compositions and average molecular weights of the obtained water-soluble hemicelluloses (a), (b) and (c) were measured. Table 1 shows the results.

[0018]

[Table 1]

Next, water-soluble hemicellulose (a),
The sugar compositions of (b) and (c) were measured by the following method. Measurement of uronic acid: Blumenkrantz method Measurement of neutral sugar: alditol acetate method The results are shown in Table 2.

[0020]

[Table 2]

[0021] Examples 1-7 and Comparative Examples 1-8 Examples 1-7, and in each of Comparative Examples 1-8 were prepared liquid detergent composition of the following composition. Amount shown in Tables 3 and 4 (those described in Table 3 and 4) Formulation Ingredient wt% linear alkylbenzene sulfonate, sodium 20 metasilicate sodium nonahydrate 5 tripolyphosphate sodium 2 anti-redeposition agents in the liquid detergent Water Remaining Each liquid cleaning composition was subjected to a recontamination prevention test under the following conditions. Test cloth for re-contamination prevention test cloth: cotton broad, weight per sheet about 3 g Soil: carbon black 0.2 g / l temperature: 30 ° C concentration: 0.5% tester: Terg-O-Tomerter (Ueshima Seisakusho) 100 rpm, 10 minutes Bath ratio: Test cloth 5 sheets / liter The re-contamination prevention rate was calculated by the following equation. Redeposition prevention rate (%) = R ₁ / R ₀ × 100 [where R ₀ represents the reflectance of the cloth before the test, and R ₁ represents the reflectance of the cloth after the test. ]

[0022]

[Table 3]

[0023]

[Table 4]

From the results shown in Tables 3 and 4, it can be seen that the use of water-soluble hemicellulose makes it possible to obtain a transparent, uniform liquid cleaning agent having excellent anti-recontamination power.

Example 8 A liquid detergent composition having the following composition was prepared. Component weight% POE (3) sodium lauryl ether sulfate (25%) 40 POE (11) tallow alcohol ether 5 coconut oil fatty acid diethanolamide 5 sodium citrate 10 water-soluble hemicellulose "production example (b)" 5 edetate 1 Remaining water

Example 9 A liquid detergent composition having the following composition was prepared. Component weight% POE (7) lauryl ether 10 POE (5) fatty acid monoethanolamide 5 straight chain alkylbenzenesulfonic acid triethanolamine 8 sodium lauroylmethyl-β-alanine (30%) 10 water-soluble hemicellulose “Production Example (C) 2 Coconut fatty acid amidopropylamino acetate sodium betaine 1 (30%) Fluorescent agent 0.5 Fragrance 0.3 Dye Appropriate amount Water residue

The liquid detergent compositions of Examples 8 and 9 were all uniform and transparent, and it was confirmed in practical tests that recontamination was small.

[0028]

The detergent composition of the present invention is based on at least one of an anionic surfactant, a nonionic surfactant and an amphoteric surfactant, and decomposes a water-insoluble plant fiber material as a re-staining agent. A liquid detergent composition for clothing, which is obtained by extracting and extracting and containing a water-soluble hemicellulose containing arabinose, xylose, galactose and uronic acid as main constituent sugars, which is transparent, uniform and excellent in anti-recontamination power. Is obtained.

Continued on the front page (72) Inventor Yasunori Usaba 3-39-8 Kameari, Katsushika-ku, Tokyo (72) Inventor Yuichi Maeda 4-2-3 Matsumaedai, Moriyacho, Kitasoma-gun, Ibaraki B-206 (72) Inventor Hitoshi Furuta 4-2-3 Matsumaedai, Moriya-machi, Kita-soma-gun, Ibaraki Prefecture B-105 (72) Inventor Hiroyuki Mori 1-15-20 Tsukushino, Abiko-shi, Chiba (56) References JP-A-3-58770 JP, A) JP-A-57-95905 (JP, A) JP-A-53-12428 (JP, A) JP-A-2-123193 (JP, A) JP-A-3-210396 (JP, A) JP 52-59605 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C11D 3/382 C11D 17/08 A61K 7/075 A61K 7/50

Claims (2)

(57) [Claims] 1. A water base produced by decomposing and extracting a water-insoluble plant fiber material and a base comprising at least one selected from an anionic surfactant, a nonionic surfactant and an amphoteric surfactant. Containing water-soluble hemicellulose, the water-soluble hemicellulose contains, as its main constituent sugar, arabinose, xylose, galactose and uronic acid,
A liquid detergent composition, which is contained as an anti-redeposition agent. 2. The liquid detergent composition according to claim 1, wherein the content of the water-soluble hemicellulose is 0.01 to 10% based on the total weight of the liquid detergent composition.