Self-Preserving Liquid Pearlescent Composition for Skin-Safe Stability

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Solution Overview

Problem

Commercial pearlescent compositions for personal care products often contain preservatives that are corrosive or toxic to the skin, necessitating a need for improved, self-preserved alternatives.

Innovation Solution

A liquid pearlescent composition comprising a glycol compound, sulfate compound, alcohol, betaine compound, and salt, free of formaldehyde releasers, parabens, isothiazolinones, formic acid, and benzoic acid derivatives, which naturally preserves against bacterial and fungal contamination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional preservatives are used in pearlescent compositions, then bacterial and fungal contamination is prevented, but skin corrosion and toxicity occur

Engineering Contradiction:

Improvepreservation effectivenessVSAvoidskin corrosion and toxicity

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent removes harmful preservatives (formaldehyde releasers, parabens, isothiazolinones, formic acid, benzoic acid) from the composition while maintaining preservation effectiveness through alternative natural preservative components, thereby eliminating skin corrosion and toxicity while preventing microbial contamination

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the chemical composition parameters by replacing traditional synthetic preservatives with alternative compounds that have different chemical properties, achieving the same preservation function without the harmful effects on skin

Inventive Principle:

Principle #35Parameter changes

2Object-affected harmful factors

If harmful preservatives are eliminated, then skin safety is improved, but bacterial and fungal contamination increases

Engineering Contradiction:

Improveskin safetyVSAvoidcontamination prevention

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The composition achieves self-preservation through its inherent chemical components that provide natural antimicrobial activity, eliminating the need for added harmful preservatives while maintaining protection against bacterial and fungal contamination

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent introduces intermediate natural preservative components that mediate between the removal of harmful chemicals and the maintenance of microbial protection, serving as alternative mechanisms that achieve both skin safety and contamination prevention

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP4069809B1Liquid pearlescent composition

Publication Date: 2026.02.25 SPECIALTY OPERATIONS FRANCE

AI summary

Disclosed are a liquid pearlescent composition (e.g., a liquid pearlescent concentration) that is free of a preservative, a personal product including the composition, and a method of use the same.