Solid Fibrous Shampoo Composition Balancing Strength and Dissolution
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Solution Overview
Problem
Existing dissolvable solid fibrous shampoo articles, particularly those containing cationic polymers, face challenges in achieving adequate strength during manufacturing while maintaining rapid dissolution during use.
Innovation Solution
A dissolvable solid fibrous shampoo article comprising a plurality of fibrous elements, with specific proportions of polymeric structurant, cationic polymer, surfactant, and a combination of inorganic and organic salts, intertangled to form a structure that balances strength and dissolution rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cationic polymer is added to enhance article strength, then manufacturing strength is improved, but dissolution rate during usage is slowed down
Solution Approach 1:
The patent applies parameter changes by precisely controlling the concentration range of cationic polymer (0.1% to 5% of total surfactant weight) and adjusting the ratio between inorganic and organic salts. This optimization ensures adequate article strength during manufacturing while maintaining rapid dissolution during usage, resolving the contradiction between strength enhancement and dissolution rate maintenance.
2Stability of the object's composition
If inorganic salt content is increased to improve article stability, then product stability is improved, but dissolution rate is reduced
Solution Approach 1:
The patent implements parameter changes by strictly limiting inorganic salt content to less than 5% of total salt weight, while compensating with organic salt content (1% to 18% of total surfactant weight). This parameter optimization maintains article stability through organic salt while preserving rapid dissolution characteristics.
3Speed
If organic salt content is increased to maintain dissolution rate, then dissolution speed is improved, but article strength during manufacturing is reduced
Solution Approach 1:
The patent applies composite materials by creating a synergistic combination of multiple components: polymeric structurant, cationic polymer, surfactant, inorganic salt, and organic salt. This composite formulation achieves both adequate manufacturing strength and rapid dissolution by leveraging the complementary properties of each component within optimized concentration ranges.
4Strength
If polymeric structurant amount is increased to enhance article strength, then manufacturing strength is improved, but dissolution time is extended
Solution Approach 1:
The patent applies parameter changes by optimizing the polymeric structurant concentration (1% to 50% of total composition) and balancing it with appropriate levels of cationic polymer and salt components. This parameter optimization ensures sufficient article strength for manufacturing while preventing excessive dissolution time, achieving rapid dissolution during usage.
Data Source
AI summary
A dissolvable solid fibrous shampoo article having a plurality of fibrous elements. The fibrous elements contain one or more polymeric structurants; one or more cationic polymers, a surfactant system, and two or more salts that include an inorganic salt and an organic salt. The plurality of fibrous elements are intertangled or otherwise associated with one another to form the fibrous article. The present invention provides a dissolvable solid fibrous shampoo articles having an adequate strength during manufacturing while not slowing down the dissolution of the structure during usage.