Textile article and method for the production and disassembly of a textile article
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Solution Overview
Problem
The textile industry faces significant challenges in recycling textile products due to contamination, the difficulty in removing hard points like zippers and buttons, and the resulting decrease in the quality and economic value of recycled materials.
Innovation Solution
A method for producing textile articles that can be disassembled automatically or semi-automatically using a polymer melt yarn. This yarn has a melting temperature between 60°C and 200°C, allowing the textile articles to be disassembled by heating the yarn, which loosens the stitching, making it easier to recycle the materials without contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If conventional mechanical recycling processes are used, then textile materials can be processed, but the quality and purity of recycled materials deteriorate due to contamination and size reduction
Solution Approach 1:
The invention divides the textile article into separable components by using different yarn types (permanent press yarn and heat-releasable yarn) that can be selectively separated through controlled heating, allowing materials to be recovered in larger, higher-quality pieces rather than being shredded
Solution Approach 2:
The invention changes the physical state of the heat-releasable yarn by heating it to its melting temperature, causing it to lose its load-bearing capacity and allowing automatic separation of textile components without mechanical shredding, thus maintaining material quality
2Loss of substance
If manual removal of hard points is performed, then recycling quality improves, but production costs increase and economic efficiency decreases
Solution Approach 1:
The textile article performs self-separation through controlled heating, where the heat-releasable yarn automatically loses its load-bearing capacity at a specific temperature, causing components to separate without manual intervention or additional processing steps
Solution Approach 2:
The invention replaces manual mechanical removal of hard points with a thermal process that selectively melts the heat-releasable yarn, allowing automated separation of components including zippers, buttons, and other hard points without manual labor
3Productivity
If coarser fiberizers are used to remove hard points, then processing efficiency improves, but fiber quality deteriorates due to shortened fibers
Solution Approach 1:
The invention changes the state of the heat-releasable yarn from solid to molten by heating it to its melting temperature, causing it to lose its load-bearing capacity and allow separation without mechanical force that would shorten fibers
Solution Approach 2:
The invention replaces mechanical fiberization and hard point removal with a thermal process that selectively melts the heat-releasable yarn, allowing automated separation without the use of coarser fiberizers that would damage fiber length
4Reliability
If textile articles are made from multiple materials, then product functionality and durability improve, but recycling difficulty increases due to contamination
Solution Approach 1:
The invention divides the multi-material textile article into separable components by using different yarn types with distinct thermal properties, allowing each material to be recovered separately through controlled heating without cross-contamination
Solution Approach 2:
The invention uses the different thermal responses of permanent press yarn and heat-releasable yarn to selectively separate materials at controlled temperatures, enabling pure recovery of each material type without mixing or contamination
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 allows for efficient disassembly and recycling of textile articles, maintaining the mechanical characteristics and purity of the materials, thereby reducing waste, conserving resources, and lowering production costs.
Implementation Method 1
the disassembly of the produced article takes place by means of the heating of the article or the yarn to a temperature equal to or higher than the melting temperature, as a result of which the stitching come loose
Data Source
AI summary
The present invention related to a method of for the production of textile articles, I which the textile articles can be disassembled automatically or semi-automatically, in which, when sewing or stitching, a polymer melt yarn is used.