Multicomponent Silicone Composition for Damage-Free Hair Coloring

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Solution Overview

Problem

Existing hair dye technologies cause damage to hair proteins, lead to unpredictable color results, and are difficult to remove, often resulting in uneven coloration and scalp irritation, with oxidative dyes requiring extended application times and leaving behind unwanted tones.

Innovation Solution

A multicomponent composition comprising functional silicone polymers with complementary reactive groups and a base compound that forms a wash-resistant coating on hair, allowing for predictable and uniform color application without damaging the hair structure, and can be easily removed without harming the hair.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If oxidative dyes are used to achieve long-lasting color, then color durability is improved, but hair protein damage increases and color predictability decreases

Engineering Contradiction:
Improvecolor durabilityVSAvoidhair protein damage
Core Design Contradiction:
Duration of action of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a coupling agent as an intermediary substance that mediates between the dye and hair. This coupling agent forms a bridge that allows dye attachment without requiring harsh oxidative conditions, thus reducing protein damage while maintaining color durability. The coupling agent specifically targets and binds to hair structures in a way that protects underlying proteins from degradation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention changes the chemical parameters of the dyeing system by using non-oxidative or reduced-oxidation dyes combined with coupling agents. This parameter change shifts the mechanism from oxidative bonding to coupling-mediated bonding, which achieves similar durability without the harmful side effects of protein oxidation and degradation.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If extended application time is used to develop color, then color development is improved, but scalp irritation increases and hair structure degradation worsens

Engineering Contradiction:
Improvecolor developmentVSAvoidscalp irritation
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent applies the coupling agent to the hair before applying the dye, performing a preliminary action that prepares the hair surface for dye attachment. This pre-treatment creates optimal binding sites and conditions, allowing the dye to develop quickly and uniformly without requiring extended application time, thereby reducing scalp exposure to irritating substances.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention enables the dyeing process to proceed rapidly by using the coupling agent to facilitate immediate dye attachment. This skips the prolonged oxidation and development phase required by traditional methods, achieving full color development in a shorter time frame and minimizing scalp irritation during the process.

Inventive Principle:
Principle #21Skipping (Rushing through)

3Duration of action of stationary object

If dye molecules diffuse into hair cortex to achieve permanent color, then color longevity is improved, but color uniformity decreases and natural tone alteration increases

Engineering Contradiction:
Improvecolor longevityVSAvoidcolor uniformity
Core Design Contradiction:
Duration of action of stationary objectVSManufacturing precision

Solution Approach 1:

The patent applies the coupling agent locally to the hair surface and cuticle layer, creating a concentrated binding zone that captures dye molecules before they can penetrate deeply into the cortex. This local application strategy ensures uniform color distribution across the hair surface while preventing the non-uniform deep cortex penetration that causes patchiness and tone alteration.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The coupling agent acts as an intermediary layer between the dye and hair cortex, controlling dye deposition in a uniform manner. This intermediary layer ensures consistent dye distribution across all hair strands and prevents the variable penetration depths that lead to non-uniform color results and unwanted tone changes in the underlying melanin.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Manufacturing precision

If traditional glue-like materials are used to attach pigment particles, then color attachment is improved, but hair strand matting increases and color uniformity decreases

Engineering Contradiction:
Improvecolor attachmentVSAvoidhair strand separation
Core Design Contradiction:
Manufacturing precisionVSShape

Solution Approach 1:

The patent uses a lightweight, non-sticky coupling agent that provides temporary but sufficient attachment for pigment particles. This coupling material is designed to bond particles to individual strands without creating the sticky, glue-like residues that cause strands to mat together. The attachment is sufficient for color retention but does not compromise hair strand separation and manageability.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 long-lasting, uniform color with minimal damage to hair proteins, ensuring the hair remains healthy and manageable, and can be effectively removed without causing breakage or altering the hair's natural tone.

Implementation Method 1

comprising first, second and third components with constituents having first, second and third functional groups respectively that in situ form covalent, coordinate, entanglement, electrostatic, ionic and/or dipolar linkages

Methodology Applied
Scientific EffectChemical bonding: Chemical Bonding

Implementation Method 2

a multicomponent composition adapted to provide a colored coating with remanent colored pigment microparticles on the surfaces of substrate material and especially on mammalian or synthetic keratin fibers

Methodology Applied
Scientific EffectDeposition: Deposition (physical)

Implementation Method 3

The multicomponent composition embodiments minimally alter substrate material upon their application

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS12053542B2Multicomponent silicone composition
Publication Date: 2024.08.06 WELLA INT OPERATIONS SWITZERLAND SARL
  • US12053542B2 patent drawing
  • US12053542B2 patent drawing
  • US12053542B2 patent drawing

AI summary

The instant disclosure generally relates to a multicomponent composition for coloring mammalian or synthetic substrate material and textiles, the composition comprising a first and second components and a third component. The first and second components comprise first and second silicone polymers respectively. Any one or more of the first, second and third components may also comprise pigment microparticles. The first, second and third compounds meld together on substrate material and textiles and especially on hair to form a highly remanent colored coating. The multicomponent composition formed and set in situ as a solid linked coating has a substantially permanent pigment lastingness and minimally alters the substrate material and textiles.