JP2011213930A - Pasty washing agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pasty washing agent composition which has unchangingly such characteristics of higher fatty acid soaps as the detergency and the feeling of refresh after the wash finish, gives the bubbles of fineness, firmness and glossiness, and has the feeling of moist after the wash finish.SOLUTION: This pasty washing agent composition contains the following components (A) through (D): (A) a salt of higher fatty acid; (B) a cationic, crosslinked vinyl copolymer; (C) a polyethylene glycol; and (D) sorbitol.

Description

  The present invention relates to a paste-like cleaning composition having good gloss, foam density, and moist feeling after washing.

Paste-type detergent compositions that use higher fatty acid soap as the main detergent are characterized by their detergency and a refreshing feeling after washing, and are widely marketed. A moisturizing agent is generally added to such a paste-like cleaning composition, and sorbitol, maltitol, polyethylene glycol, 1,3-butylene glycol, glycerin, dipropylene glycol, propylene glycol, and the like are blended ( (See Non-Patent Document 1)
Cationic polymers are used particularly for improving the foam quality of hair washing agents and for improving the squeaky feeling after washing (see Patent Document 1).

New Cosmetic Science 2nd edition (Nanzan-do), page 350 (issued in 2001)

JP 2008-184424 A

  Conventional paste-type cleaning compositions containing a higher fatty acid soap as the main cleaning agent have problems that the foam is rough and the foam is not stiff, and the washing finish is stretched. Accordingly, in the present invention, a paste-like cleaning composition is provided which has the detergency and the refreshing feeling after washing, which are the characteristics of the high-grade fatty acid soap, while the foam is fine, firm and glossy and has a moist feeling after washing. Aimed to do.

  The present invention relates to a paste containing component (A) to component (D), that is, (A) a higher fatty acid salt, (B) a cationic crosslinked vinyl copolymer, (C) polyethylene glycol, and (D) sorbitol. The present invention relates to a cleaning composition.

  The paste-like cleaning composition of the present invention has a good detergency and a refreshing feeling after washing, has a fine foam and a gloss, and has a moist feeling after washing.

  The paste-like cleaning composition of the present invention comprises components (A) to (D), that is, (A) a higher fatty acid salt, (B) a cationic crosslinked vinyl copolymer, (C) polyethylene glycol, ( D) Contains sorbitol. These components will be described individually.

  The higher fatty acid constituting the component (A) higher fatty acid salt used in the present invention may be either saturated or unsaturated, and preferably has 8 to 24 carbon atoms, particularly 10 to 22 carbon atoms. Specific examples of preferable ones include lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, hydroxystearic acid, hydroxydecenoic acid, coconut oil fatty acid, reduced coconut oil fatty acid, beef tallow fatty acid, reduced beef tallow fatty acid, palm Nuclear fatty acids are raised. Examples of alkali agents that form salts with these higher fatty acids include alkali metal salts such as sodium and potassium, ammonium salts, monoethanolamine salts, diethanolamine salts, triethanolamine salts, 2-amino-2-methylpropanol, 2- Examples include alkanolamine salts such as amino-2-methylpropanediol, and basic amino acid salts such as lysine and arginine. Of these, potassium and arginine are particularly preferable.

  In addition, these higher fatty acid salts do not necessarily need to be blended in the paste-like cleaning composition as fatty acid salts, and the higher fatty acid and the base may be added separately to form a fatty acid salt in the composition. Good.

  These higher fatty acid salts can be used alone or in combination of two or more, and are blended in an amount of 30 to 60% by mass based on the total amount of the paste-like cleaning composition. If it is less than 30% by mass, sufficient detergency cannot be obtained, and if it exceeds 60% by mass, problems such as crystal precipitation occur, which is not preferable.

  The component (B) cationic crosslinked vinyl copolymer used in the present invention is not particularly limited as long as it has a cationic group and a crosslinked structure in the molecule. For example, as described in JP-A-11-71435 Examples include cationic group-containing copolymers. In particular, (a) at least one cationic group-containing unsaturated monomer, (b) at least one amide group-containing unsaturated monomer, and (c) two or more unsaturated groups in the molecule. A cross-linked vinyl copolymer having a structural unit derived from these monomers obtained by polymerizing a monomer mixture containing at least one kind of cross-linkable unsaturated monomer as an essential monomer is preferred.

  The cationic group-containing unsaturated monomer (a) includes (meth) acrylic acid esters or (meth) acrylamides having a dialkylaminoalkyl group; styrenes having a dialkylamino group, vinylpyridines, N- Vinyl heterocyclic compounds; and acid neutralized or quaternary ammonium salts of these amino group-containing monomers, (meth) acryloylalkyltrialkyl quaternary ammonium salts, diallyldialkyl quaternary ammonium salts, and the like.

  Preferred acids for obtaining acid neutralized products include hydrochloric acid, sulfuric acid, acetic acid, citric acid, succinic acid, adipic acid, sulfamic acid and the like. Preferred quaternizing agents for obtaining quaternary ammonium salts are as follows. Alkyl halides such as methyl chloride and methyl iodide, and alkyl sulfates such as dimethyl sulfate, diethyl sulfate and di-N-propyl sulfate.

  Preferred specific examples of the monomer (a) include dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, dimethylaminopropyl (meth) acrylamide, diethylaminopropyl (meth) acrylamide, and the above-mentioned quaternary. Examples include quaternary ammonium salts quaternized with an agent, dimethyl diallyl ammonium chloride, and the like.

  As the amide group-containing unsaturated monomer of (b), N-monoalkyl (meth) acrylamides, N, N-dialkyl (meth) acrylamides, N- (meth) acryloylmorpholine, N-vinylpyrrolidone, N -Vinyl piperidone etc. are mentioned.

  Preferable specific examples of the monomer (b) include N-methyl (meth) acrylamide, N, N-dimethyl (meth) acrylamide, N, N-diethyl (meth) acrylamide, and Nn-propyl (meth) acrylamide. N-t-butylacrylamide, N- (meth) acryloylmorpholine, N-vinylpyrrolidone and the like. Among them, the feeling of use is preferable when N, N-disubstituted acrylamide is used, and N, N-dimethyl (meth) acrylamide, N, N-diethyl (meth) acrylamide and the like are particularly preferable.

  Examples of the crosslinkable unsaturated monomer having two or more vinyl groups in the molecule (c) include (meth) acrylic acid esters of polyhydric alcohol or unsaturated alcohol, bis (meth) acrylamides, divinyl compounds, Examples include polyallyl compounds. Specifically, ethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, pentaerythritol tetra (meth) acrylate, divinylbenzene, divinyl ether, allyl etherified pentaerythritol, vinyl (meth) acrylate, allyl (Meth) acrylate and the like are particularly preferable.

  One or more monomers (a), (b) and (c) can be used.

  The copolymerization ratio of the monomer (a) and the monomer (b) is 2/98 to 98/2, particularly 3/97 to 60/40 in terms of the molar ratio (a) / (b). However, it is preferable for providing a copolymer that has a feeling of use at the time of application to the skin and can give a smooth feel to the skin after application.

  The proportion of the monomer (c) is 0.002 to 5% by mass, particularly 0.002 to 3% by mass, more preferably 0.002 to 1% by mass, based on the total amount of monomers. It is preferable for providing a copolymer that gives moderate viscosity and shape retention as a cleaning composition.

  In addition to these monomers, the cationic crosslinked vinyl copolymer used in the present invention can further contain other unsaturated monomers copolymerizable therewith. Examples of other monomers include (meth) acrylic acid esters such as methyl (meth) acrylate, ethyl (meth) acrylate, and polyethylene glycol (meth) acrylate; acrylic acid, methacrylic acid; N-3 (-sulfo Propyl) -N-acryloyloxyethyl-N, N-dimethylammonium betaine, betaines such as N-carboxymethyl-N-methacryloyloxyethyl-N, N-dimethylammonium betaine, and the like.

  The (B) cationic crosslinked vinyl copolymer used in the present invention is produced by a conventional method using these monomers, for example, by an aqueous solution polymerization method, reverse phase suspension polymerization method, precipitation polymerization method or the like. can do. Polyquaternium-52 (Sofcare KG-310W, Kao) can be used as a commercial product.

  In the present invention, (B) the cationic crosslinked vinyl copolymer may be used in one or more kinds, and the content in the paste-like cleaning composition of the present invention is 0.005 to 0.1% by mass, particularly 0. It is preferably 0.01 to 0.1% by mass. When blended in an amount of 1% by mass or more, the spinnability becomes high and it may be difficult to fill the tube container with a bulk. When the amount is less than 0.005% by mass, the foam quality may be deteriorated or the moist feeling of washing may be affected.

  The component (C) polyethylene glycol used in the present invention is not particularly limited as long as it is a polyethylene glycol that can be usually blended in a cleaning composition. The average degree of polymerization of polyethylene glycol is preferably in the range of 4-50, particularly in the range of 4-40. If the average degree of polymerization is less than 4, it may be difficult to obtain a moist feeling after washing. If the average degree of polymerization exceeds 50, the hardness of the paste may become too high to be suitable for cleaning materials. In the present invention, 1 to 10% by mass of polyethylene glycol is blended. When the amount is less than 1% by mass, it may be difficult to obtain a moist feeling after a good wash. Even if it exceeds 10 mass%, a moist feeling more than this cannot be obtained, and stickiness may occur.

  The component (D) sorbitol used in the present invention is not particularly limited as long as it is a sorbitol that can be usually blended in a cleaning material. In this invention, 1-10 mass% of sorbitol is mix | blended. When the amount is less than 1% by mass, there may be a problem with foam quality, foam quality such as foam density, and moist feeling after washing. Even if it exceeds 10 mass%, the foam quality improvement effect beyond this may not be obtained.

  In the pasty skin cleansing composition of the present invention, in addition to the above-mentioned essential components, an aqueous component, an oily component, and a moisturizing agent, which are usually blended in pharmaceuticals, quasi drugs, and skin cosmetics as necessary. Agents, pigments, emulsifiers, solubilizers, ultraviolet absorbers, thickeners, drugs, fragrances, resins, antibacterial and antifungal agents, alcohols, and the like can be appropriately blended.

  Further, the features of the present invention will be described in detail by way of examples.

  A pasty skin cleansing composition was prepared by a conventional method using the formulations shown in Tables 1 and 2, and the feeling of use was evaluated. In the table, PEG is an abbreviation for polyethylene glycol, and the subsequent numbers represent the average degree of polymerization. As a result of the usability evaluation, Comparative Example 1 in which polyethylene glycol was not blended had a feeling of use lacking a moist feeling after washing. In Comparative Example 2 in which sorbitol was not blended, the foam quality was not good, and the feeling of use was lacking in a moist feeling after washing. In Comparative Example 3 in which the polyquaternium-52 which is a cationic cross-linked vinyl copolymer was not blended, the foam density was lowered to give a coarse foam, and the feeling of use lacking a moist feeling. In contrast to these comparative examples, Examples 1 to 5 of the present invention were good in cleaning power and refreshing feeling after washing, finely foamed, glossy, and glossy after use. .

[Example 6] Pasty cleaning composition
(1) Purified water 31.97%)
(2) Glycerin 10.00
(3) 1,3-butylene glycol 10.00
(4) Sorbitol 5.00
(5) PEG-20 5.00
(6) Potassium hydroxide 5.00
(7) Polyquaternium-52 0.03
(8) POE (20) Glycerol monostearate 2.00
(9) Stearic acid 12.00
(10) Myristic acid 14.00
(11) Lauric acid 5.00
Manufacturing method
The water phase components (1) to (7) and the oil phase components (7) to (11) are heated, mixed and homogenized at 75 ° C. respectively, and then the oil phase is added to the water phase and saponified and cooled. .

  The paste-like cleaning composition obtained in Example 6 had good detergency and a refreshing feeling after washing, had a fine foam, washes and gloss, and had a feeling of use having a moist feeling after washing.

Claims (1)

Component (A) to Component (D), that is, (A) a higher fatty acid salt, (B) a cationic crosslinked vinyl copolymer, (C) polyethylene glycol, and (D) a sorbitol-containing paste-like detergent composition object.