Liquid skin cleansing agent composition

A liquid skin cleansing composition with specific ratios of cationic polymer and cationized polysaccharides, along with an ether carboxylic acid surfactant, addresses the issues of cell damage and itching, providing improved skin moisture post-wash.

JP7868849B2Active Publication Date: 2026-06-02LION CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
LION CORP
Filing Date
2022-06-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Conventional liquid skin cleansing compositions using polyoxyethylene alkyl ether sulfate cause significant damage to stratum corneum cells and itching, failing to provide a moist feeling after towel drying.

Method used

A liquid skin cleansing composition containing polyoxyethylene alkyl ether sulfate, a cationic polymer with 40 mol% dimethyldiallylammonium chloride units, cationized polysaccharides, and an ether carboxylic acid type anionic surfactant, with a specific mass ratio of 1.2 to 4.0, and optionally an anti-inflammatory component, to enhance skin moisture and reduce irritation.

Benefits of technology

The composition effectively suppresses damage to stratum corneum cells, improves skin itchiness, and enhances the moist feeling after towel drying.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a liquid skin cleansing agent composition that protects the horny layer cells from wash-induced damage, alleviates skin itchiness, and improves the skin's moist feel after towel drying.SOLUTION: A liquid skin cleansing agent composition includes (A) polyoxyethylene alkylether sulfate, (B) a cationic polymer containing 40 mol% or more of a dimethyldiallylammonium chloride-derived structural unit, and (C) a cationized polysaccharide. The mass ratio of the content of the component (B) to the content of the component (C) [(B) / (C)] is 1.2-4.0.SELECTED DRAWING: None
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