Foam Semi-Permanent Hair Dye Composition with Penetration Agent

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Semi-permanent hair dyes face challenges with poor color durability, difficulty in applying to the inner hair due to their formulation type, and potential skin discoloration issues, while existing solutions compromise between dyeing efficiency and hair conditioning.

Innovation Solution

A foam-type semi-permanent hair dye composition incorporating a basic pigment, a pigment penetration agent such as benzyl alcohol or dipropylene glycol, and a combination of cationic and non-ionic surfactants, which enhances foam forming ability and retention, allowing for easier application and improved color stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the content of pigment is increased to enhance dyeing effect, then colorability is improved, but skin discoloration occurs

Engineering Contradiction:

Improvepigment contentVSAvoidskin discoloration

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a pigment penetration agent as an intermediary substance that facilitates pigment uptake by hair while controlling its distribution. This mediator enables the use of effective pigment concentrations without direct skin contact, resolving the contradiction between achieving good colorability and preventing skin discoloration.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical application method (brush application of cream) with a foam-based delivery system. The foam formulation allows for controlled distribution and reduced skin transfer, enabling higher pigment content to be used effectively on hair while minimizing skin discoloration.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Quantity of substance

If the content of pigment penetration agent is increased to enhance pigment penetrability, then dye uptake is improved, but hair conditioning is degraded

Engineering Contradiction:

Improvepigment penetration agent contentVSAvoidhair conditioning

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The patent optimizes the concentration parameters of the pigment penetration agent within a specific range (0.1-5.0 wt%) to achieve effective pigment penetration while maintaining hair conditioning. By precisely controlling this parameter, the patent resolves the contradiction between penetration efficiency and hair health.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses a composite formulation combining pigment penetration agent with cationic surfactant and non-ionic surfactant. This composite approach enhances pigment penetration while the surfactants provide conditioning benefits, thereby resolving the contradiction between penetration and conditioning.

Inventive Principle:

Principle #40Composite materials

3Reliability

If the content of cationic surfactant is increased to enhance hair conditioning, then hair care is improved, but dyeing efficiency is degraded

Engineering Contradiction:

Improvehair conditioningVSAvoiddyeing efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent optimizes the cationic surfactant content within a specific range (0.1-10.0 wt%) to balance conditioning and dyeing efficiency. By controlling this parameter alongside pigment penetration agent and non-ionic surfactant, the patent achieves both good hair care and effective dyeing without compromising either aspect.

Inventive Principle:

Principle #35Parameter changes

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 achieves excellent colorability, reduced color fading, and uniform hair dyeing with minimal skin uptake, while providing conditioning effects and stable foam retention, addressing the limitations of traditional semi-permanent hair dyes.

Implementation Method 1

a foam-type semi-permanent hair dye composition which is easily applied onto the inner part of the hair due to having high foam forming ability and high foam retention

Methodology Applied

Scientific EffectFoam: Foam

Implementation Method 2

a surfactant consisting of a cationic surfactant and a non-ionic surfactant

Methodology Applied

Scientific EffectSurfactant: Surfactant

Implementation Method 3

a pigment penetration agent, and a surfactant consisting of a cationic surfactant and a non-ionic surfactant

Methodology Applied

Scientific EffectPenetration: Permeation

Implementation Method 4

exhibits less color fading after dyeing and excellent colorability by including a pigment penetration agent

Methodology Applied

Scientific EffectDiffusion: Diffusion

Implementation Method 5

semi-permanent hair dyes, which are to be attached to the hair surface by an ionic bond

Methodology Applied

Scientific EffectIonic bond: Chemical Bonding

Data Source

PatentUS12064498B2Foam type semi-permanent hair dyeing composition

Publication Date: 2024.08.20 KOLMAR KOREA

AI summary

Provided is a semi-permanent hair dye composition, and particularly, a foam-type semi-permanent hair dye composition which is easily applied onto the inner part of the hair due to having high foam forming ability and high foam retention and exhibits less color fading after dyeing and excellent colorability. The semi-permanent hair dye composition includes a pigment penetration agent, a cationic surfactant, and a non-ionic surfactant as well as a basic pigment.