Solid Washing Agent Composition with Alkyl-Modified Silicone
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Solution Overview
Problem
Conventional solid acylamino acid-based washing agents become soft and sticky in high-temperature, high-humidity environments, leading to melting and impaired transparency and foaming properties.
Innovation Solution
A solid washing agent composition containing N-long chain acyl acidic amino acid salts with a specific molar ratio of alkali metal to ethanolamine salts, blended with alkyl-modified silicone, cationic polymer, and ampholytic surfactants, which maintains hardness and transparency by controlling the degree of neutralization and the proportion of alkyl groups, preventing melting and stickiness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional solid acylamino acid-based washing agents are used, then they provide basic washing functionality, but they become soft and sticky in high-temperature, high-humidity environments, leading to melting and impaired transparency
Solution Approach 1:
The patent applies parameter changes by optimizing the degree of neutralization to 1.05 to 1.30 eq and controlling the molar ratio of alkali metal salt to ethanolamine salt (1:4 to 1:1). These specific parameter adjustments transform the physical properties of the washing agent, enabling it to maintain hardness and transparency in high-temperature, high-humidity environments while preventing melting and stickiness.
Solution Approach 2:
The patent uses composite materials by combining N-long chain acylamino acid salts with specific proportions of alkali metal salts and ethanolamine salts. This composite approach creates a synergistic effect where the combination of different salt types and the controlled degree of neutralization produce a stable solid structure that resists softening and melting under adverse environmental conditions.
2Object-generated harmful factors
If the molar ratio of ethanolamine salt is increased to reduce stickiness, then adhesion to container is reduced, but stability during high-temperature storage deteriorates, resulting in impaired transparency
Solution Approach 1:
The patent resolves this contradiction by precisely controlling the molar ratio of alkali metal salt to ethanolamine salt within 1:4 to 1:1 and the degree of neutralization at 1.05 to 1.30 eq. This balanced parameter configuration ensures that ethanolamine salt content is sufficient to reduce stickiness and adhesion, while maintaining adequate stability during high-temperature storage and preserving transparency.
3Manufacturing precision
If the degree of neutralization is increased to improve transparency, then transparency is enhanced, but stability during high-temperature storage is deteriorated
Solution Approach 1:
The patent optimizes the degree of neutralization to a specific range of 1.05 to 1.30 eq, which balances transparency and thermal stability. This precise parameter control ensures that the washing agent achieves sufficient transparency while maintaining stability during high-temperature storage, preventing the deterioration that would occur with excessive neutralization.
Data Source
AI summary
A solid washing agent that is hard even in a high-temperature, high-humidity atmosphere or in a similar environment and that can prevent melting away and stickiness is provided.A composition for a solid washing agent containing an N-long chain acyl acidic amino acid salt as a component of an ingredient wherein the salt for the N-long chain acyl acidic amino acid salt is composed of an alkali metal salt and an ethanolamine salt, the molar ratio of the alkali metal salt to the ethanolamine salt is 10:90 to 75:25, the degree of neutralization is 1.5 to 2.0 eq, and an alkyl-modified silicone represented by formula (I) below is blended as an ingredient, and a solid washing agent formed from the composition.