Aqueous liquid detergent composition

By using a specific surfactant system in aqueous liquid detergent compositions, especially the ratio of alkyl ether sulfates, alkyl sulfates and rhamnolipid biosurfactants, the problem of enzyme stability was solved, and stable storage of enzymes and maintenance of cleaning effect were achieved.

CN122422484APending Publication Date: 2026-07-17UNILEVER IP HLDG BV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNILEVER IP HLDG BV
Filing Date
2024-11-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The stability of enzymes in existing water-based liquid detergent compositions leads to a decrease in cleaning effectiveness over time, and existing solutions, such as over-preparation, are costly and wasteful.

Method used

A surfactant system comprising a main surfactant mixture of alkyl ether sulfate and alkyl sulfate surfactants, an amphoteric surfactant, and a rhamnolipid biosurfactant is used to ensure enzyme stability. Preferably, the weight ratio of rhamnolipid biosurfactant to alkyl sulfate is 1:10 to 1:1.

Benefits of technology

It improves the storage stability of enzymes, maintains their cleaning efficacy, avoids waste and cost from over-preparation, and meets consumers' demand for environmentally friendly products.

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Abstract

本发明涉及包含以下的水性液体洗涤剂组合物：a.3至30重量%的表面活性剂体系，其包含：i.包含烷基醚硫酸盐表面活性剂和烷基硫酸盐表面活性剂的主要表面活性剂混合物；ii.选自甜菜碱、葡糖酰胺和磺基甜菜碱的两性表面活性剂；和iii.0.25至5重量%的鼠李糖脂生物表面活性剂；b.一种或多种酶；其中‑所述表面活性剂体系包含至少3%的鼠李糖脂生物表面活性剂，基于包括鼠李糖脂生物表面活性剂的表面活性剂总量计算；‑鼠李糖脂生物表面活性剂与烷基硫酸盐的重量比为1:10至1:1。
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