Method for preparing hollow textile with core-spun yarn of short-staple wrapped microporous alkali-soluble polyester filament
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Solution Overview
Problem
Current textile preparation methods fail to simultaneously achieve comfort, functionality, and maintain mechanical properties, often relying on single-function fibers or chemical treatments that can damage the fabric or lead to washability issues.
Innovation Solution
A method for preparing hollow textiles using core-spun yarns of short-staple wrapped microporous alkali-soluble polyester filament, involving foaming microcapsule preparation, alkali-soluble chip production, and melt foaming and spinning to create a microporous structure that enhances dissolution and contact area, resulting in a fluffy, soft, warm, and quick-drying fabric.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If machine impact process is used to obtain fluffiness, then the textile becomes fluffy, but the appearance and mechanical properties of the textile are damaged
Solution Approach 1:
The patent uses hollow fibers with internal cavities and microporous structures to create fluffiness and air layers that provide thermal insulation without mechanical impact. The hollow structure and porous walls naturally create air pockets that give the textile a fluffy appearance while preserving fiber strength
Solution Approach 2:
The patent employs composite fiber structures combining different materials (e.g., hydrophobic outer layer with hydrophilic inner layer, or strength-providing fibers with hollow thermal-insulating fibers) to achieve both fluffiness and mechanical integrity simultaneously, avoiding the need for damaging mechanical treatment
2Shape
If chemical softening agents are used to obtain softness, then the textile becomes soft, but washability problems occur
Solution Approach 1:
The patent uses fibers with inherent soft characteristics (fine-denier fibers, modified fiber surfaces, or specific cross-section shapes) that provide softness through their physical structure rather than chemical additives. These structural properties remain stable during washing, eliminating washability issues associated with chemical softening agents
Solution Approach 2:
The patent modifies fiber parameters such as denier, cross-sectional shape, and surface texture to achieve softness intrinsically. By changing the physical parameters of the fibers themselves rather than applying chemical coatings, the softness is maintained through the wash cycle
3Temperature
If hollow synthetic fibers are used to obtain warmth, then heat retention is improved, but the approach is only applicable for synthetic fibers not for natural fibers
Solution Approach 1:
The patent creates a universal hollow fiber technology platform that can be applied to various fiber types including polyester, nylon, acrylic, and even treated natural fibers. The hollow structure and microporous wall design provide thermal insulation functionality that is adaptable to different base materials, making warmth enhancement universally applicable across fiber categories
4Quantity of substance
If moisture absorbing and quick drying synthetic fibers are used to achieve water absorption and quick drying property, then moisture management is improved, but this approach is only applicable for synthetic fibers
Solution Approach 1:
The patent applies different functional properties to different parts of the fiber structure - for example, a hydrophobic outer surface layer that repels water combined with a hydrophilic inner core that absorbs and wicks moisture away from the skin. This local differentiation of properties enables moisture management functionality that can be adapted to various fiber types while maintaining performance
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 produces a hollow textile with a comfortable hand feel, improved mechanical properties, and enhanced moisture management, addressing the limitations of existing techniques by achieving multiple comfort and functionality aspects without chemical additives.
Implementation Method 1
The polyester filament having the microporous structure can effectively increase the contact area of the alkali dissolution
Implementation Method 2
a hollow yarn or a hollow fabric is made from a polyester filament having a microporous structure through alkali dissolution
Implementation Method 3
An alkane foaming agent is selected as a core material of the microcapsule, which, together with the microcapsule wall material chips obtained in a4, is used to prepare the foaming microcapsule through in-situ polymerization
Data Source
AI summary
The invention discloses a method for preparing a hollow textile with a core-spun yarn of short-staple wrapped microporous alkali-soluble polyester filament, which includes a foaming microcapsule preparation step, a preparation step of alkali-soluble chips containing foaming microcapsules, a melt foaming and spinning step, and a hollow textile preparation step. In the method for preparing the hollow textile with the core-spun yarn of short-staple wrapped microporous alkali-soluble polyester filament, a hollow yarn or a hollow fabric is made from a polyester filament having a microporous structure through alkali dissolution. The polyester filament having a microporous structure can effectively increase the contact area of the alkali dissolution and has the advantages of high dissolution rate, short dissolution time and complete dissolution. The hollow textile prepared from the hollow yarn or the hollow fabric obtained after dissolution has a comfortable hand feeling and has the characteristics of being fluffy, soft, warm and quick-drying.