Cationic Cassia Shampoo Coacervates for Fast Rinsing
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Solution Overview
Problem
Conventional hair cleansing products often cause damage to hair structure and scalp dehydration due to the removal of lipids and proteins, and the incorporation of conditioning ingredients leads to prolonged rinsing times, increased water consumption, and undesirable buildup effects.
Innovation Solution
A hair cleansing agent combining surfactants with cationic cassia polymers and amidoamines, which form a stronger coacervate phase for easy rinsing, reducing water consumption and preventing overconditioning while maintaining effective cleansing and conditioning properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conditioning ingredients are incorporated into shampoos to improve hair care properties, then manageability and softness are significantly improved, but rinsing time is significantly increased
Solution Approach 1:
The patent changes the chemical parameters of the conditioning agent by using a specific low molecular weight cationic polymer with controlled molecular weight (10,000-500,000) and specific functional groups (quaternary ammonium compounds). This parameter optimization allows the conditioning agent to be effectively rinsed while maintaining hair care benefits, resolving the contradiction between conditioning performance and rinsing time.
Solution Approach 2:
The patent creates a composite formulation combining surfactants with specific cationic polymers (hydroxypropyltrimonium chloride from cassia) and amidoamines. This composite material system achieves both effective conditioning and improved rinsability, as the specific combination allows for better water solubility and reduced residue buildup compared to conventional conditioning agents.
2Ease of operation
If conditioning ingredients are incorporated into shampoos to improve hair care properties, then hair softness and manageability are improved, but water consumption is increased
Solution Approach 1:
The patent optimizes the molecular weight parameter of the cationic polymer to be in the range of 10,000-500,000, which enhances water solubility and reduces the amount of water needed for complete rinsing. This parameter change allows effective conditioning with reduced water consumption.
Solution Approach 2:
The patent extracts and uses only the essential conditioning components (specific cationic polymers and amidoamines) without unnecessary additives, creating a streamlined formulation that rinses more efficiently with less water while maintaining hair care benefits.
3Reliability
If conventional shampoos are used for frequent cleansing to remove impurities, then cleaning effectiveness is maintained, but hair structure damage and scalp dehydration are exacerbated
Solution Approach 1:
The patent converts the potentially harmful effect of frequent cleansing into a beneficial routine by adding conditioning agents that protect hair and scalp. The cationic polymers and amidoamines counteract the drying effects of surfactants, allowing frequent use without cumulative damage while maintaining cleaning effectiveness.
Solution Approach 2:
The conditioning agents in the shampoo provide preliminary protection to hair and scalp before cleansing occurs. The cationic polymers form a protective layer that prevents excessive lipid and protein removal, thereby preventing damage and dehydration even with frequent use.
4Loss of time
If surfactant and conditioning agent content is reduced to improve rinsability, then rinsing time is reduced, but cleaning and conditioning performance becomes unsatisfactory
Solution Approach 1:
The patent changes the quality parameters of the conditioning agent by selecting specific low molecular weight cationic polymers with optimized molecular weight (10,000-500,000) and specific chemical structures. This allows effective conditioning performance with reduced agent content, enabling faster rinsing without sacrificing performance.
Solution Approach 2:
The patent develops a composite surfactant system combined with specific cationic polymers and amidoamines that enhances cleaning efficiency per unit concentration. This composite approach allows reduced overall active ingredient content while maintaining satisfactory cleaning and conditioning performance with improved rinsability.
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 agent provides quick and thorough rinsing, reduces water consumption, and enhances hair care properties such as combability and volume without causing damage or buildup, using a balanced formulation that is transparent and free from certain additives.
Implementation Method 1
surfactants with cationic cassia polymers and specific amidoamines, hair care shampoos with excellent cleansing and conditioning effects can be provided. Due to the stronger coacervate phase in hair cleansing products, they can be rinsed out of the hair very easily and quickly after use
Data Source
AI summary
Hair cleansing agents which contain: a) at least one surfactant, selected from anionic, amphoteric, zwitterionic and/or non-ionic surfactants; b) at least one cationic cassia polymer; and c) at least one amidoamine of formula (I), in which R1 represents a saturated or unsaturated, branched or unbranched alkyl group having 19 to 30 carbon atoms, R2 and R3, independently of one another, represent hydrogen or a C1-C4 alkyl group, and x represents an integer from 2 to 6, are particularly suitable for improving the (wet) combability and the body of the hair. In addition, the hair cleansing agents can be particularly effectively and rapidly rinsed out of the hair, as a result of which the overall water consumption during the hair cleansing process can be reduced.