Cleaning Composition Foam Stability via Cellulose Ratio

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Solution Overview

Problem

Conventional cleaning compositions, such as those described in JP 2014-218465A, are unsatisfactory in terms of foamability, foam fineness, and foam stability, failing to produce fine and stable foams with resilient texture.

Innovation Solution

A cleaning composition comprising an anionic surfactant, methyl cellulose, and hydroxypropyl methyl cellulose, with a mass ratio of methyl cellulose to hydroxypropyl methyl cellulose in the range of 40:60 to 80:20, which enhances foamability and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a cleaning composition uses only modified alkyl hydroxyalkyl cellulose as a thickening agent, then the composition can be manufactured simply, but the foamability, foam fineness and foam stability remain unsatisfactory

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidfoam stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent applies composite materials by combining methyl cellulose and hydroxypropyl methyl cellulose in a specific mass ratio (40:60 to 80:20) to create a cleaning composition that achieves both good foamability and foam stability. This composite approach allows the composition to overcome the limitations of using single cellulose derivatives alone, providing fine and stable foams with resilient texture while maintaining manufacturing simplicity.

Inventive Principle:
Principle #40Composite materials

2Device complexity

If the cleaning composition uses a single type of cellulose derivative, then the formulation is simple, but the foam fineness and foam texture quality are insufficient

Engineering Contradiction:
Improveformulation complexityVSAvoidfoam fineness
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent employs composite materials by formulating a mixture of methyl cellulose and hydroxypropyl methyl cellulose in a specific mass ratio range (40:60 to 80:20). This composite formulation achieves fine foam texture and improved foam fineness while keeping the overall formulation relatively simple, thus resolving the contradiction between formulation complexity and foam quality.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies local quality by optimizing the specific mass ratio of methyl cellulose to hydroxypropyl methyl cellulose (40:60 to 80:20) to achieve particular foam properties. This localized optimization of component ratios allows the composition to produce fine and stable foams with resilient texture, addressing the foam fineness requirement without excessive formulation complexity.

Inventive Principle:
Principle #3Local quality

3Ease of manufacture

If conventional surfactant-cellulose combinations are used, then the composition is easy to manufacture, but the foamability and foam resilience are inadequate

Engineering Contradiction:
Improvemanufacturing easeVSAvoidfoamability
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent applies composite materials by combining methyl cellulose and hydroxypropyl methyl cellulose in a specific mass ratio (40:60 to 80:20) to enhance foamability and produce fine, stable foams with resilient texture, while maintaining ease of manufacture through a relatively simple formulation approach.

Inventive Principle:
Principle #40Composite materials

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 good foamability and produces fine, stable foams with resilient texture, improving upon the limitations of existing formulations.

Implementation Method 1

a cleaning composition comprising a surfactant, methyl cellulose, hydroxypropyl methyl cellulose and a solvent... capable of producing fine and stable foams with resilient texture

Methodology Applied
Scientific EffectFoam: Foam

Data Source

PatentEP3470505B1Cleaning composition
Publication Date: 2023.08.02 SHIN ETSU CHEMICAL CO LTD

AI summary

There is provided a cleaning composition having good foamability and being capable of producing fine and stable foams with resilient texture. More specifically, there is provided a cleaning composition comprising a surfactant, methyl cellulose, hydroxypropyl methyl cellulose, and a solvent.