Cationic Polymer Humectant Dishwashing Detergent
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Solution Overview
Problem
Existing liquid hand dishwashing detergents cause skin irritation and dryness due to exposure to surfactants, and existing formulations that incorporate skin-protecting ingredients often compromise cleaning performance or suds profile.
Innovation Solution
A liquid hand dishwashing detergent composition containing a cationic polymer and humectant, which provides skin hydration and moisturization while maintaining effective grease cleaning and suds performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If skin protecting ingredients are incorporated into light duty liquid detergents, then skin protection is improved, but cleaning performance and suds profile are compromised
Solution Approach 1:
The patent uses a cationic polymer as an intermediary carrier that binds skin protecting ingredients and delivers them to the skin. The polymer acts as a mediator between the detergent formulation and the skin, allowing skin protection without compromising cleaning performance or suds profile, as the polymer carrier enables effective delivery even under dilute dishwashing conditions
Solution Approach 2:
The patent creates a composite formulation combining cationic polymer, skin protecting ingredients (such as humectants, emollients, or occlusives), and detergent components. This composite approach allows the synergistic combination of cleaning agents and skin protectants, where the polymer matrix enables both cleaning efficacy and skin benefit delivery simultaneously
2Object-affected harmful factors
If hydrophilic active ingredients are used for skin protection, then skin protection is improved, but deposition upon skin is insufficient under dilute conditions
Solution Approach 1:
The cationic polymer serves as an intermediary that enhances the deposition of hydrophilic active ingredients onto the skin. The polymer's cationic nature and film-forming properties allow it to carry and deposit skin protecting ingredients effectively on the skin surface, even when the detergent is highly diluted during dishwashing, ensuring reliable delivery of hydrophilic actives
Solution Approach 2:
The patent changes the physical and chemical parameters of the skin protecting ingredients by formulating them in association with cationic polymer at specific concentrations (0.01-5% polymer with 0.1-10% active ingredients). This parameter optimization ensures adequate deposition and skin benefit under the dilute conditions typical of manual dishwashing
3Object-affected harmful factors
If mild surfactants are used to reduce skin irritation, then skin protection is improved, but cleaning performance may be reduced
Solution Approach 1:
The cationic polymer provides multi-functionality by simultaneously enabling skin protection delivery, maintaining cleaning performance, and contributing to the overall detergent efficacy. The polymer serves multiple roles: as a carrier for skin protectants, as a suds booster, and as a cleaning aid, allowing the use of milder surfactant systems without compromising overall cleaning performance
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 composition efficiently hydrates and moisturizes the skin, preventing irritation and dryness while maintaining high cleaning performance and suds profile, even under dilute conditions.
Implementation Method 1
the cationic polymer has film forming properties which assist in the deposition of the skin protecting ingredient onto the skin
Implementation Method 2
a humectant which imports hydrated water bound to the humectant through hydrogen bonding, into the skin
Implementation Method 3
light-duty liquid dishwashing detergents containing surfactants
Data Source
AI summary
A liquid hand dishwashing detergent composition comprising a cationic polymer and a humectant, a method of cleaning dishes with a liquid hand dishwashing detergent composition comprising a cationic polymer and a humectant, and a method of providing skin hydration and/or moisturization the context of a manual dishwashing operation, using liquid hand dishwashing detergent composition comprising a cationic polymer and a humectant.