Fabric Conditioning Composition with Phase Change Material
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Solution Overview
Problem
Existing fabric conditioning compositions fail to effectively enhance the shear release effect of volatile benefit agents, such as perfumes, during the fabric treatment process, leading to suboptimal fragrance delivery and intensity.
Innovation Solution
Incorporating a low level of encapsulated phase change material with a phase change temperature between 24 to 39°C, combined with encapsulated and non-encapsulated volatile benefit agents, and cationic or non-ionic softening agents, to enhance the shear release effect and fragrance intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If encapsulated perfume technology is used to protect perfume during drying, then perfume loss is reduced, but shear release effect is insufficient
Solution Approach 1:
The invention combines encapsulated perfume with encapsulated phase change material in a single fabric conditioning composition. The phase change material undergoes solid-liquid transition at body temperature, creating mechanical action that enhances the shear release of encapsulated perfume from the fabric, thereby resolving the contradiction between perfume protection and shear release effectiveness.
Solution Approach 2:
The invention utilizes the phase transition properties of encapsulated phase change material that transitions from solid to liquid at body temperature (24-39°C). This phase change generates mechanical action on the fabric surface, improving the shear release effect of encapsulated perfume without increasing perfume loss during drying.
2Ease of operation
If conventional encapsulated volatile benefit agents are used, then fragrance delivery is provided, but fragrance intensity during wear is insufficient
Solution Approach 1:
The encapsulated phase change material transitions from solid to liquid at body temperature, creating mechanical action that enhances perfume release from encapsulates during wear. This phase transition mechanism significantly boosts fragrance intensity while maintaining ease of fragrance delivery through the fabric conditioning composition.
Solution Approach 2:
The encapsulated phase change material acts as an intermediary that transfers mechanical energy to the encapsulated perfume during wear. The phase change material's solid-liquid transition creates rubbing action that mediates between the fabric and perfume encapsulates, enhancing fragrance intensity without compromising delivery effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The inclusion of encapsulated phase change material significantly increases the shear release effect, providing a noticeable boost in perfume intensity during fabric wear, improving the overall fragrance delivery and user experience.
Implementation Method 1
an encapsulated phase change active, said phase change active having a phase change temperature of from 24 to 39°C
Data Source
AI summary
A fabric conditioning composition, which comprises: (i) an encapsulated volatile benefit agent; (ii) an encapsulated phase change active, said phase change active having a phase change temperature of from 24 to 39°C;and (iii) at least one softening agent selected from a cationic softening agent, a non-ionic softening agent and mixtures thereof; and (iv)a non-encapsulated volatile benefit agent.