Carbodiimide Surface Modification Composition for Wash-Resistant Care
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Solution Overview
Problem
Existing cosmetics and personal care products for skin and hair provide only temporary and short-term conditioning effects, requiring frequent reapplication, while fabric care products also suffer from similar transient benefits, necessitating repeated treatment.
Innovation Solution
A composition incorporating a carbodiimide-based compound that forms covalent bonds with proteins in the skin, hair, or fabric to achieve semi-permanent surface modification effects without causing damage, using a reactive surface-modifying component that reacts with a carbodiimide group to enhance durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If conventional cosmetics and personal care products are applied to skin and hair, then conditioning effects are achieved, but the effects are only temporary and require frequent reapplication
Solution Approach 1:
The patent applies preliminary action by using carbodiimide-based compounds that form covalent bonds with proteins in skin and hair before the conditioning effect wears off. This chemical bonding occurs in advance to create semi-permanent attachments, allowing the conditioning components to remain bound to the substrate throughout the product lifecycle, thereby eliminating the need for frequent reapplication while maintaining continuous conditioning effects.
2Duration of action of stationary object
If fabric care products are applied to fabric, then care effects are achieved, but the effects are transient and necessitate repeated treatment
Solution Approach 1:
The patent applies preliminary action to fabric care by incorporating carbodiimide-based compounds that form covalent bonds with fabric proteins during the initial treatment. This chemical bonding mechanism ensures that fabric care components remain permanently attached to the fabric substrate, providing continuous care effects through multiple washes without requiring repeated treatment, thus resolving the contradiction between effect duration and treatment frequency.
3Reliability
If surface modification is achieved through coating, then conditioning effects are improved, but the coating is easily removed and requires frequent reapplication
Solution Approach 1:
The patent applies parameter changes by transforming the bonding mechanism from weak physical adsorption to strong covalent chemical bonding. The carbodiimide-based compounds react with amino groups on protein surfaces to form stable amide bonds, fundamentally changing the interaction parameter from reversible adsorption to irreversible chemical attachment. This parameter change ensures that surface modification effects persist through multiple washes and remain stable under various environmental conditions, resolving the contradiction between reliability and persistence.
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 provides continuous and long-lasting surface modification effects on skin, hair, and fabric by forming stable covalent bonds, maintaining benefits through multiple washes without the need for repeated application.
Implementation Method 1
A composition incorporating a carbodiimide-based compound that forms covalent bonds with proteins in the skin, hair, or fabric to achieve semi-permanent surface modification effects
Implementation Method 2
using a reactive surface-modifying component that reacts with a carbodiimide group to enhance durability
Data Source
AI summary
The present invention relates to a composition for surface modification. The composition for surface modification according to the present invention contains a particular carbodiimide-based compound, thus forms a covalent bond without damaging skin, hair, or fabric, and semipermanently provides desired skin or hair surface modification effects or fabric care effects.