Solid Cosmetic Cleansing Combar Formulation

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Solution Overview

Problem

There is a demand for cosmetic cleansing and conditioning products for skin and hair that are Cosmos-certifiable, have excellent foaming behavior, and minimize packaging, while avoiding residue left on the skin or hair, and are environmentally friendly.

Innovation Solution

The development of solid cosmetic cleansing compositions comprising up to 90% alkali metal salts of fatty acids, 1-40% amino acid surfactants, and 0.05-10% citric acid ester or salt, which are suitable for single application and can be packaged in recyclable materials, offering excellent foaming properties and reduced water loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If solid cosmetic cleansing compositions are formulated with natural ingredients to meet Cosmos certification standards, then environmental friendliness and naturalness are improved, but foaming behavior and cleansing performance may deteriorate

Engineering Contradiction:

Improveenvironmental friendlinessVSAvoidfoaming behavior

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent combines multiple natural surfactant components (alkali metal soaps from natural fats/oils, amino acid surfactants, and citric acid esters) to create a composite cleansing system that achieves both Cosmos certification compliance and excellent foaming performance. This composite approach allows the formulation to leverage the synergistic effects of different natural surfactants to overcome the limitations of individual components.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent optimizes the concentration ranges of each surfactant component (soaps at 5-90%, amino acid surfactants at 1-40%, citric acid esters at 0.05-10%) to achieve the desired foaming behavior and cleansing performance while maintaining natural ingredient requirements. By carefully adjusting these parameters, the formulation achieves reliable performance with natural ingredients.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If plastic packaging is used to protect cosmetic products, then product protection is improved, but environmental impact deteriorates

Engineering Contradiction:

Improveproduct protectionVSAvoidenvironmental impact

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent removes plastic packaging from the product system and replaces it with recyclable glass containers and cardboard boxes. This extraction of the harmful packaging material eliminates the environmental impact associated with plastic while maintaining adequate product protection through alternative sustainable packaging materials.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If conventional surfactants are used to achieve good foaming behavior, then cleansing performance is improved, but residue deposition on skin and hair worsens

Engineering Contradiction:

Improvecleansing performanceVSAvoidresidue deposition

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters by incorporating citric acid esters (0.05-10%) alongside the surfactant system. This modification to the formulation parameters enhances rinseability and prevents residue deposition while maintaining effective cleansing performance, addressing the harmful side effect of conventional surfactants.

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 compositions provide effective, residue-free cleansing with excellent foaming behavior, suitable for both hard and soft water, and are environmentally friendly, meeting Cosmos certification standards and reducing packaging needs.

Implementation Method 1

amino acid surfactant(s)...citric acid ester and/or salt(s) of citric acid...excellent foaming behaviour

Methodology Applied

Scientific EffectSurface tension reduction: Surfactant

Implementation Method 2

alkali metal salts of fatty acids (soaps)...effective, residue-free cleansing

Methodology Applied

Scientific EffectMicelle formation: Surfactant

Data Source

PatentUS11554085B2Combar for skin and hair treatment

Publication Date: 2023.01.17 HENKEL KGAA

AI summary

A cosmetic cleansing composition, which is solid at about 25° C., is disclosed. The cosmetic cleansing composition includes up to about 90% by weight, based on a total weight of the cosmetic cleansing composition, of alkali metal salts of fatty acids (soaps), from about 1 to about 40% by weight, based on a total weight of the cosmetic cleansing composition, of amino acid surfactant(s), and from about 0.05 to about 10% by weight, based on a total weight of the cosmetic cleansing composition, of citric acid ester and/or salt(s) of citric acid.