JP7080546B2 - Cleaning composition - Google Patents

Description

The present invention relates to a cleaning composition.

Various products have been developed as cleaning agents in the past, and in particular, those based on higher fatty acid salts have excellent detergency, good foaming, and a refreshing feel, so they are used for washing pigments and whole body cleaning. It is used for fees. However, due to its strong detergency, even the sebum required for the skin is removed, causing problems such as the skin becoming dry and taut after cleaning.

There are examples of using diglycerin in combination with a polyoxypropylene adduct (Patent Document 1) and plant extracts (Patent Document 2) in order to improve the dryness and tightness of the skin after washing. However, the effect is insufficient and the problem has not been solved yet.

Japanese Unexamined Patent Publication No. 6-116135 Japanese Unexamined Patent Publication No. 10-88193

It is an object of the present invention to provide a cleaning composition having a good foam quality and a moisturizing feeling even though it is based on a fatty acid salt.

The present invention provides a cleaning composition containing the following (A) to (C).
(A) Higher fatty acid salt (B) Emulsion of crosslinked copolymer of methacrylic acid and ethyl acrylate (C) One or 2 selected from nonionic surfactants having an HLB value of 12 or more, trimethylglycine and high degree of polymerization polyethylene glycol. More than seeds

The cleaning agent composition of the present invention has good foaming, detergency, and foam quality, and exhibits the effects of having a moisturizing feeling and a refreshing feeling.

Hereinafter, embodiments for carrying out the present invention will be described.

The higher fatty acid constituting the higher fatty acid salt used in the present invention may be saturated or unsaturated, and has 8 to 24 carbon atoms, particularly preferably 10 to 22 carbon atoms. Among these fatty acids, it is preferable to use linear saturated fatty acids. Specific examples of preferred ones include lauric acid, myristic acid, palmitic acid, stearic acid, coconut oil fatty acid, reduced coconut oil fatty acid, palm kernel fatty acid and the like. Among these fatty acids, it is preferable to contain one or more selected from lauric acid, myristic acid, palmitic acid, and stearic acid from the viewpoints of foaming, safety, and stability, and particularly lauric acid and myristic acid. It is preferable to use three kinds of acid and palmitic acid. Alkali agents that form salts with these higher fatty acids include alkali metal salts such as sodium and potassium, ammonium salts, monoethanolamine, diethanolamine, triethanolamine, 2-amino-2-methylpropanol, and 2-amino-2. -Examples include alkanolamine salts such as methylpropanediol and basic amino acid salts such as lysine and arginine. Of these, potassium and arginine are particularly preferable.

Further, these higher fatty acid salts do not necessarily have to be blended as a fatty acid salt in the cleaning composition, and the higher fatty acid and the base may be added separately to form a fatty acid salt in the composition.

The blending amount of the higher fatty acid salt is preferably 15 to 25% by mass. Sufficient detergency may not be obtained if the composition is less than 15% by mass. If it is blended in excess of 25% by mass, crystals may precipitate or the liquid form may not be maintained.

The emulsion of a crosslinked copolymer of methacrylic acid and ethyl acrylate used in the present invention (sometimes abbreviated as acrylates copolymer emulsion) is an aqueous dispersion that swells with an alkali and is an emulsion of a polymer having a pure content of 30%. Examples of such an acrylic copolymer emulsion include Carbopol Aqua SF-1 (manufactured by Noveon).

The blending amount of the Acrylate copolymer emulsion should be varied depending on the type, amount, pH and the like of other components, and is not particularly limited as long as the desired consistency can be obtained. It is preferable to add about 0.05 to 1.0% by mass as the pure content of the crosslinked copolymer. A moisturizing effect may not be obtained if the composition is less than 0.05% by mass. If it is blended in excess of 1.0% by mass, a refreshing feeling after rinsing may not be obtained.

In addition to the above essential components, the cleaning composition of the present invention contains one or more selected from nonionic surfactants having an HLB value of 12 or more, trimethylglycine, and high-polymerization polyethylene glycol.

The nonionic surfactant used in the present invention having an HLB value of 12 or more may be any nonionic surfactant as long as it is used in a usual detergent composition. Specific examples thereof include polyoxyethylene sorbitan fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene alkyl ether, and polyoxyethylene hydrogenated castor oil.

Examples of the polyoxyethylene sorbitan fatty acid ester include monolauric acid POE (80) sorbitan (HLB value 19.0), monolauric acid POE (20) sorbitan (HLB value 16.9), and monopalmitic acid POE (20) sorbitan (HLB value). 15.6), POE monostearate (20), sorbitan (HLB value 14.9) and the like can be mentioned. Examples of the polyglycerin fatty acid ester include hexaglyceryl monolaurate (HLB value 14.5) and decaglyceryl monolaurate (HLB value 15.5). Examples of the polyoxyethylene fatty acid ester include monolauric acid POE (10) (HLB value 12.5), monostearic acid POE (25) (HLB value 15.0) and the like. Examples of the polyoxyethylene alkyl ether include POE (9) lauryl ether (HLB value 14.5), POE (10) cetyl ether (HLB value 13.5), POE (20) phytosterol ether (HLB value 15.5), and the like. , POE (30) phytosterol ether (HLB value 18.0) and the like. Examples of the polyoxyethylene cured castor oil include POE (40) cured castor oil (HLB value 12.5), POE (60) cured castor oil (HLB value 14.0) and the like.

In the present invention, among these nonionic surfactants, it is preferable to use one or two selected from POE (80) sorbitan monolaurate and decaglyceryl monolaurate. More preferably, POE monolaurate (80) sorbitan and decaglyceryl monolaurate are used in combination.

When a nonionic surfactant having an HLB value of 12 or more is blended, the blending amount is 0.5 to 5% by mass, preferably 0.5 to 2% by mass, based on the total amount of the cleaning composition. If the composition is less than 0.5% by mass, the effect of improving the moist feeling may not be recognized. If it is blended in excess of 2% by mass, foaming may decrease.

The origin of trimethylglycine used in the present invention is not particularly limited as long as it is used in ordinary detergent compositions. When trimethylglycine is blended, the blending amount is preferably 0.5 to 10% by mass, preferably 0.5 to 5% by mass, based on the total amount of the cleaning composition. If the composition is less than 0.5% by mass, the effect of improving the moist feeling may not be recognized.

The high degree of polymerization polyethylene glycol used in the present invention has an average degree of polymerization of 20,000 to 200,000. Examples of commercially available products include Polyox WSR-N-12K, Polyox WSR-N-60K, Polyox WSR-301, Polyox WSR COAGULANT, Polyox WSR-303 (all manufactured by Union Carbite), and Al. Cox E-100 (manufactured by Meisei Chemical Industry Co., Ltd.), PEO-8P (manufactured by Sumitomo Seika Co., Ltd.) and the like can be mentioned. When the high polymerization degree polyethylene glycol is blended, the blending amount is preferably 0.01 to 2% by mass, preferably 0.1 to 1.5% by mass, based on the total amount of the cleaning composition. .. If the content is less than 0.1% by mass, the effect of improving the moist feeling may not be recognized.

In addition to the above-mentioned components, the cleaning agent of the present invention may contain arbitrary components used in ordinary cleaning agent fields and the like to the extent that the effects of the present invention are not impaired. Specific examples thereof include purified water, oil agents, surfactants, thickeners, preservatives, fragrances, ultraviolet absorbers, moisturizers, antioxidants, anti-inflammatory agents, antibacterial agents and the like.

The cleaning agent of the present invention is produced by a conventional method, and can be in the form of a solid, liquid, milky liquid, cream, paste, gel, ointment or the like. From the viewpoint of the effect of the present invention, it is preferable to take a liquid dosage form having an appropriate viscosity. Further, the cleansing agent of the present invention can be used as a skin cleansing agent and a hair cleansing agent, and is particularly preferable to be used as a skin cleansing agent.

Hereinafter, the present invention will be described with reference to examples, but the technical scope of the present invention is not limited thereto.

The evaluation methods of Examples and Comparative Examples of the present invention are as follows.

[Evaluation method]
Three expert panelists conducted a use test on the body and absolutely evaluated the foaming, detergency, foam quality, moisturizing feeling, and refreshing feeling of the cleaning agent composition. The evaluation results were judged by consensus using the following criteria.

[Evaluation criteria] Foaming, detergency, foam quality ◎: Very good ○: Good △: Slightly bad ×: Bad

[Evaluation criteria] Moisturizing feeling, refreshing feeling ◎: Strong feeling ○: A little feeling △: Not much feeling ×: Not feeling

Tables 1 and 2 show the formulations of body cleansers according to Examples and Comparative Examples of the present invention. The cleaning agent was prepared according to a conventional method and used for evaluation.

As shown in Tables 1 and 2, the cleaning agent of the present invention had excellent foaming quality and moisturizing feeling while maintaining the foaming, good detergency and refreshing feeling peculiar to the higher fatty acid salt.

Claims (1)

A cleaning composition containing the following (A) to (C).
(A) Emulsion of higher fatty acid salt (B) crosslinked copolymer of methacrylic acid and ethyl acrylate (C) POE monolauric acid (80) sorbitan and decaglyceryl monolaurate