Organopolysiloxane Textile Pretreatment for Microfiber Shedding
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Solution Overview
Problem
The release of microfibers during the washing process, particularly from polyester fabrics, contributes significantly to environmental microplastic pollution, and existing fabric softeners do not effectively mitigate this issue.
Innovation Solution
A pretreatment process using a composition comprising film-forming organopolysiloxanes and cationic surfactants, applied before washing, which reduces the release of microfibers by forming a protective film on textiles, thereby minimizing fiber shedding during washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional fabric softeners are used, then textile softness is improved, but microfiber release during washing is not reduced
Solution Approach 1:
The patent applies film-forming organopolysiloxanes before the washing process to create a protective coating on textile fibers. This preliminary action forms a barrier that prevents microfibers from shedding during subsequent washing, while the cationic surfactants ensure proper adhesion to the textile surface. The combination addresses both softness and microfiber reduction by preparing the textile surface in advance.
Solution Approach 2:
The invention combines film-forming organopolysiloxanes with cationic surfactants to create a composite treatment system. The organopolysiloxanes form the protective film structure while the cationic surfactants provide binding to the textile and enhance film formation. This composite approach achieves both textile softness and microfiber release reduction simultaneously, overcoming the limitation of conventional single-component softeners.
2Object-generated harmful factors
If film-forming organopolysiloxanes are used to reduce microfiber release, then environmental pollution is reduced, but formulation complexity increases
Solution Approach 1:
The patent merges the film-forming organopolysiloxane component with cationic surfactants into a single integrated formulation. This combination serves multiple functions: the organopolysiloxane provides the protective film for microfiber reduction, while the cationic surfactant ensures adhesion to textile and enhances softness. By combining these functions in one formulation, the patent reduces formulation complexity compared to using separate treatment steps.
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 use of film-forming organopolysiloxanes and cationic surfactants significantly reduces microfiber release during washing while improving the softness and dirt repellency of treated textiles.
Implementation Method 1
film-forming organopolysiloxanes... forming a protective film on textiles
Implementation Method 2
comprising at least 1 part by weight and at most 20 parts by weight of cationic surfactants
Data Source
AI summary
A process for reducing the release of microfibers during the washing process of textiles includes a composition (Z). The textiles are pretreated before the washing process with composition (Z), which includes at least 0.1 parts by weight and not more than 10.0 parts by weight of film-forming organopolysiloxanes, at least 1 part by weight and not more than 20 parts by weight of cationic surfactants, and at least 30 parts by weight and not more than 99 parts by weight of water.