Weft-knitted fabric with cut-loop piles
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Solution Overview
Problem
Conventional fabric structures limit the variability of single-sided pile fabrics, particularly in achieving partial piles under multi-colored cut-loop piles conditions.
Innovation Solution
A weft-knitted fabric with cut-loop piles is developed, comprising basic yarn loops and cut-loop piles formed by cutting pile loops from at least two colored yarns. Each cut-loop pile is connected to a basic yarn loop, and the colored yarns form both the cut-loop piles and basic yarn loops, allowing for variable pile formation and color distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fabric structures are used for multi-colored cut-loop piles, then color variety is achieved, but the ability to create partial piles is limited
Solution Approach 1:
The fabric structure is segmented into distinct functional zones: some needle beds form piles while others form plain loops. This segmentation allows different portions of the fabric to have different structures (piled vs. non-piled) within the same fabric, enabling partial pile effects while maintaining a relatively simple overall knitting machine configuration.
Solution Approach 2:
Different regions of the fabric are given different local qualities - some areas have cut-loop piles while others have plain knit loops. This is achieved by selectively forming piles at specific needle positions while keeping other needles in plain knitting mode, allowing design flexibility without complex overall structure changes.
2Adaptability or versatility
If single colored yarn is used for cut-loop piles, then simple structure is maintained, but color conversion and design flexibility are limited
Solution Approach 1:
The yarn feeding system is designed to be multi-functional, capable of supplying both pile yarn and ground yarn through the same or different feeders. The system can selectively deliver different colored yarns to pile-forming needles while maintaining the basic knitting structure, enabling color variety without proportionally increasing system complexity.
Solution Approach 2:
The yarn selection system is made dynamic, allowing the choice of which colored yarn feeds which needle position to be changed during knitting. This enables color conversion and pattern variation without requiring physical reconfiguration of the knitting machine, maintaining structural simplicity while achieving design flexibility.
Data Source
AI summary
A weft-knitted fabric with cut-loop piles comprises a plurality of basic yarn loops and a plurality of cut-loop piles. The plurality of basic yarn loops are formed from at least one basic yarn, the plurality of cut-loop piles are respectively connected to one of the plurality of basic yarn loops, each of the plurality of cut-loop piles is formed by cutting a pile loop formed from one of at least two colored yarns, each of the at least two colored yarns without forming the plurality of cut-loop piles forms at least one of the plurality of basic yarn loops together with the at least one basic yarn, and colors of the at least two colored yarns are different.