Stabilization of fabric surfaces
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Solution Overview
Problem
Textile flooring and surface coverings face challenges in maintaining surface stability and abrasion resistance while preventing liquid penetration, which often leads to bacterial growth, and existing solutions compromise breathability or harden the surface, losing the textile feel.
Innovation Solution
The use of low-melting polymeric particles deposited onto the surface of textile fabrics, guided into interstices and textured areas, and activated with heat to form a durable barrier that prevents fluid penetration without excessive hardening, while maintaining breathability and textile feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If films or membranes are attached to the bottom of the sheet to prevent liquid penetration, then liquid penetration resistance is improved, but breathability deteriorates and the liquid penetrates into the lower layers promoting bacterial growth
Solution Approach 1:
The patent applies a porous membrane made of heat-settable polymer particles with interconnected voids that allow water vapor transmission while blocking liquid penetration. The porous structure provides capillary pressure resistance to liquids while maintaining breathability through the interconnected pore network, eliminating the need for solid films that would block both liquid and vapor transmission.
Solution Approach 2:
The patent utilizes the phase transition of polymer particles from discrete solid particles to a bonded matrix through heat setting. The heat-setting process melts the polymer particles to form a cohesive yet porous structure that provides both liquid barrier properties and vapor permeability, resolving the contradiction between liquid resistance and breathability.
2Strength
If adhesive layers are used to attach the membrane to the structure, then membrane attachment is improved, but breathability is limited or fully blocked
Solution Approach 1:
The patent extracts and eliminates the adhesive layer from the construction by integrating the membrane directly into the textile substrate through heat-setting. The polymer particles are applied to the textile and heat-set to form a bonded structure without requiring separate adhesive layers, thereby maintaining breathability while achieving secure attachment.
Solution Approach 2:
The patent merges the membrane and textile substrate into a single integrated structure through the heat-setting process. The polymer particles bond directly to the textile fibers, creating a unified construction where the membrane and substrate work together as one system, eliminating the need for adhesive layers that would compromise breathability.
3Strength
If three-dimensionally formed fabrics are used to maintain surface stability and abrasion resistance, then surface durability is improved, but the fibers at cut edges are insufficiently anchored and tend to fray or fuzz
Solution Approach 1:
The patent applies polymer particles to the textile surface before final assembly and heat-sets them to pre-anchor the fibers. This preliminary bonding action secures the fiber ends and surface structure before the product is put into service, preventing fraying and fuzzing that would otherwise occur at cut edges and high-stress areas.
Solution Approach 2:
The patent changes the physical state of the polymer from discrete particles to a melted and re-solidified matrix through heat setting. This parameter change creates a bonded structure that mechanically anchors fibers while preserving the textile's three-dimensional surface characteristics, achieving both surface durability and cut edge stability.
4Object-affected harmful factors
If high weights of adhesive are used to form a liquid-blocking composite, then liquid penetration resistance is improved, but breathability and water vapor transmission capability are reduced
Solution Approach 1:
The patent employs a porous polymer particle structure that provides liquid barrier properties through capillary pressure while maintaining water vapor transmission through the interconnected pore network. The porous architecture allows vapor molecules to pass through while blocking larger liquid molecules, achieving liquid resistance without sacrificing breathability.
Solution Approach 2:
The patent creates a composite structure consisting of textile fibers and heat-set polymer particles forming a porous matrix. This composite material combines the mechanical strength and breathability of the textile with the liquid barrier properties of the polymer network, achieving both liquid penetration resistance and water vapor transmission capability simultaneously.
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 method enhances surface durability, prevents fraying, and blocks fluid penetration effectively, passing the British Spill Test while preserving the fibrous texture and breathability of the fabric.
Implementation Method 1
activated with heat to form a durable barrier
Implementation Method 2
low-melting polymeric particles
Implementation Method 3
deposited onto the surface of textile fabrics
Data Source
AI summary
A textile fabric having improved properties, variously including surface stability, abrasion resistance, resistance to edge fraying, moisture control, and resistance to fluid penetration is created by introducing a polymeric solution or a plurality of low-melting particles suspended in a liquid into the textile fabric while leaving a plurality of surface fibers exposed and maintaining a textile feel on the surface.