Multiple Woven Gauze Fabric Wrinkle Control
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Solution Overview
Problem
The existing woven gauze fabrics face issues with wrinkle generation due to differing shrinkage rates between twisted and non-twisted yarns, affecting breathability, lightweight properties, and ease of sewing and printing, which limits their application in clothing and bedding.
Innovation Solution
A multiple woven gauze fabric is developed by combining gauze weave constructions of non-twisted and hollow twisted yarns, with a hollow ratio of 20-50%, where the yarns cross alternately between the front and back surfaces to control wrinkle formation and enhance design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If non-twisted yarn is used to improve heat-retaining property and softness, then wrinkle generation increases due to shrinkage difference with twisted yarn
Solution Approach 1:
The patent applies parameter changes by controlling the hollow ratio of the twisted yarn within 20-50% to adjust the shrinkage characteristics. This parameter optimization allows the fabric to maintain heat-retaining properties while reducing wrinkle generation caused by excessive shrinkage differences between yarn types.
Solution Approach 2:
The patent uses a composite structure combining non-twisted yarn and hollow twisted yarn in a multiple woven gauze fabric. This composite material approach allows the non-twisted yarn to provide heat retention and softness while the hollow twisted yarn with controlled ratio provides structural stability and reduces wrinkle formation.
2Shape
If hollow ratio of twisted yarn is increased to control shrinkage, then heat-retaining property may be reduced
Solution Approach 1:
The patent optimizes the hollow ratio parameter within the specific range of 20-50% to achieve the best balance. This parameter change ensures sufficient shrinkage control to reduce wrinkles while maintaining enough hollow structure to preserve heat-retaining properties of the fabric.
3Strength
If conventional twisted yarn is used to maintain strength, then breathability and lightweight property are degraded
Solution Approach 1:
The patent employs hollow twisted yarn which creates a porous structure with air pockets within the yarn itself. This porous material approach maintains fabric strength through the hollow yarn structure while significantly improving breathability and reducing weight compared to conventional solid twisted yarn.
Solution Approach 2:
The combination of non-twisted yarn and hollow twisted yarn creates a composite material system where the hollow twisted yarn provides both structural strength and enhanced breathability, overcoming the limitations of conventional solid twisted yarn.
Data Source
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AI summary
Provided is a multiple woven gauze fabric capable of controlling the degree of wrinkling according to use. A double woven gauze fabric is formed by stacking a front surface gauze structure A and a back surface gauze structure B. The front surface gauze structure A and the back surface gauze structure B are formed, and the front surface gauze structure A and the back surface gauze structure B are joined, as appropriate. The front surface gauze structure A is composed of a non-twist yarn, and the back surface gauze structure B is composed of a hollow yarn. That is, a gauze structure composed only of twisted yarn (solid yarn) is not included. The degree of wrinkling is controlled by considering the hollow rate of the hollow yarn.