Recycled Fabric via Bio-Based Spinning Solution
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Solution Overview
Problem
The textile industry contributes to environmental pollution due to waste and incineration of textile materials, and conventional synthetic fibers have limitations in opacity and hydrophilicity, restricting their use in delicate fabrics and light colors.
Innovation Solution
A method of obtaining bio-based synthetic fiber chips from textile waste, depolymerizing them into usable forms, and spinning these into filaments with a specific solution to interlock with bio-based elastic fibers, creating a fabric that recycles waste, enhances opacity, and improves hydrophilicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional synthetic fibers are used, then production efficiency is maintained, but opacity and hydrophilicity are insufficient
Solution Approach 1:
The patent modifies the chemical composition parameters of the spinning solution by incorporating specific additives and adjusting ratios of components like dicarboxylic acid, diol, and catalysts to enhance opacity and hydrophilicity of the regenerated fibers while maintaining manufacturing feasibility
Solution Approach 2:
The patent introduces a spinning solution as an intermediary medium that facilitates the transformation of textile waste into high-performance fibers with improved opacity and hydrophilicity, acting as a mediator between raw waste material and final product requirements
2Ease of manufacture
If textile waste is disposed of through dumping or incineration, then handling is simple, but environmental pollution increases
Solution Approach 1:
The patent converts harmful textile waste that would otherwise be dumped or incinerated into valuable regenerated fibers through chemical recycling processes, transforming environmental pollutants into useful materials with enhanced properties
Solution Approach 2:
The patent implements a recovery process that extracts and regenerates useful materials from discarded textile waste, converting waste streams into valuable resources through depolymerization and repolymerization cycles
3Productivity
If rapid fashion changes are pursued, then market responsiveness improves, but textile waste increases
Solution Approach 1:
The patent establishes a recovery system that captures textile waste from rapid fashion cycles and regenerates it into new fibers, closing the material loop and preventing waste generation while maintaining market responsiveness to fashion changes
4Reliability
If bio-based additives are incorporated into spinning solution, then fiber performance is enhanced, but processing complexity increases
Solution Approach 1:
The patent optimizes processing parameters such as temperature, pressure, and additive concentrations to achieve enhanced fiber performance from bio-based spinning solutions without proportionally increasing processing complexity, finding efficient operating windows for the chemical reactions
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 effectively recycles textile waste, reduces environmental pollution, and produces a fabric with enhanced opacity and hydrophilicity, maintaining softness and aesthetic appeal even after repeated washing.
Implementation Method 1
depolymerizing the polyethylene terephthalate into dimethyl terephthalate; depolymerizing the nylon into adipic acid
Implementation Method 2
the dimethyl terephthalate is purified based on a closed-loop recrystallization process, and the adipic acid is purified based on the closed-loop recrystallization process
Implementation Method 3
reacting the dimethyl terephthalate with bio-based-MEG (mono-ethylene glycol) to obtain the polyethylene terephthalate chips; reacting the adipic acid with bio-based 1, 5-pentane diamine to obtain the nylon chips
Implementation Method 4
obtaining extruded filaments from the bio-based synthetic fiber chips by adopting a spinning solution
Data Source
AI summary
The present disclosure provides a fabric, a preparation method thereof and clothing formed therefrom. The preparation method includes the following steps: obtaining bio-based synthetic fiber chips from textile waste materials; obtaining extruded filaments from the bio-based synthetic fiber chips by adopting a spinning solution; and weaving and interlocking the extruded filaments with bio-based elastic fibers to obtain the fabric. The prepared fabric is obtained from the textile waste materials, so that waste recycling is realized, and the pollution of the textile wastes to the environment is avoided. The spinning solution is adopted in the preparation process of the fabric, so that the opacity and hydrophilicity of the fabric can be enhanced.