Bleaching compositions with improved performance and stability and their use

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Solution Overview

Problem

High-concentration peroxide bleaching compositions used in the textile industry face stability issues due to external and internal factors, leading to inferior bleaching quality and textile material loss, as conventional stabilizers can cause over-stabilization and degradation, particularly at industrial scales where peroxide concentrations exceed 25%.

Innovation Solution

A bleaching composition combining hydrogen peroxide with specific organo-phosphonates, such as N-oxide alkaline salts of phosphonates, which replaces inorganic stabilizers, providing effective stabilization without over-stabilization, and includes auxiliary agents like amino alkyl phosphonic acids and surfactants to enhance stability and bleaching efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If inorganic stabilizers are used in high-concentration peroxide bleaching compositions, then stability is improved, but over-stabilization occurs leading to degradation and loss of bleaching activity

Engineering Contradiction:

ImprovestabilityVSAvoidbleaching activity

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The patent changes the chemical nature of the stabilizer from inorganic to organic phosphonate derivatives, fundamentally altering the stabilization mechanism to prevent over-stabilization while maintaining stability in high-concentration peroxide compositions

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses organic phosphonate derivatives that provide effective stabilization without the persistent over-stabilization effects of inorganic stabilizers, allowing the system to maintain optimal performance throughout the bleaching process

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Productivity

If peroxide concentration is increased to 25-50% for industrial scale bleaching, then productivity is improved, but stability deteriorates due to rapid degradation

Engineering Contradiction:

ImproveproductivityVSAvoidstability

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The patent introduces organic phosphonate derivatives as intermediary substances that mediate between high peroxide concentration and stability requirements, complexing with metal ions to prevent catalytic decomposition while allowing the high-concentration formulation to remain stable

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a composite bleaching composition combining high-concentration peroxide with organic phosphonate stabilizers and auxiliary agents, achieving both the productivity benefits of high concentration and the stability needed for safe handling and storage

Inventive Principle:

Principle #40Composite materials

3Stability of the object's composition

If inorganic stabilizers are combined with organo-phosphonates, then stabilization performance is enhanced, but over-stabilization occurs preventing formation of active peranion groups

Engineering Contradiction:

Improvestabilization performanceVSAvoidbleaching quality

Core Design Contradiction:

Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The patent extracts and eliminates inorganic stabilizers from the formulation, retaining only organic phosphonate derivatives that provide necessary stabilization without interfering with the formation of active peranion groups required for quality bleaching results

Inventive Principle:

Principle #2Taking out (Extraction)

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 solution achieves long-term stability and efficient bleaching performance with reduced loss of hydrogen peroxide and textile material, even at high concentrations, and is cost-effective by eliminating the need for inorganic stabilizers, ensuring better bleaching quality and safety.

Implementation Method 1

N-oxide alkaline salts of phosphonates... which replaces inorganic stabilizers, providing effective stabilization

Methodology Applied

Scientific EffectComplexation:

Implementation Method 2

Trace amounts of transition metals such as iron and copper promote catalytic decomposition of hydrogen peroxide

Methodology Applied

Scientific EffectCatalytic decomposition: Catalysis

Implementation Method 3

peroxides... releasing only oxygen and water upon degradation

Methodology Applied

Scientific EffectDecomposition:

Implementation Method 4

auxiliary agents like amino alkyl phosphonic acids and surfactants to enhance stability and bleaching efficiency

Methodology Applied

Scientific EffectSurfactant effect: Surfactant

Data Source

PatentEP2759518B1Bleaching compositions with improved performance and stability and their use

Publication Date: 2019.05.22 MKS DEVO KIMYEVI MAD SAN TIC

AI summary

The present invention relates to a bleaching composition for use in industrial scale bleaching processes. The composition is free of inorganic stabilizers, and comprises hydrogen peroxide at high concentrations along with modified organo-phosphonate compounds according to the present invention, that provides long term stability and prevents over stabilization caused by the conventional stabilizers. The composition may further comprise auxiliary ingredients such as surfactants and wetting agents. The invention also pertains to a process for treating textile materials involving the composition of the invention and a textile article treated according to such process.