Cut Resistant Glove Yarn Structure for String Exposure
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Solution Overview
Problem
Conventional cut resistant gloves with metal or glass fiber strings face issues of string exposure and reduced flexibility due to thick yarns, leading to inferior texture and fit, especially when knitted with smaller stitches.
Innovation Solution
A cut resistant glove design using a ground yarn with a core material of metal or glass fiber and an organic support yarn, combined with an additional organic fiber yarn, where the thickness ratio of the additional yarn to the ground yarn is between 0.9 and 2.5, and the ground yarn has an average thickness of 135 to 440 dtex, ensuring the string is prevented from exposure and enhancing flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If yarns including a large number of filaments and having a great fineness are used as the support yarn and the cover yarn to prevent the sticking out of the string due to cutting, as well as the deterioration of the texture, then the ground yarn has a great thickness, but this leads to inferior texture and fit in high-gauge knitting machines
Solution Approach 1:
The invention changes the parameter of support yarn thickness to a specific range (45-100 dtex) that balances two opposing requirements: thick enough to prevent string exposure but thin enough to maintain glove texture and fit. This parameter optimization resolves the contradiction between reliability and shape quality.
Solution Approach 2:
The invention uses a composite yarn structure combining metal or glass fiber string with organic fiber support yarn and cover yarn. This composite structure allows the string to provide cut resistance while the organic fibers maintain the glove's texture and flexibility, resolving the contradiction between prevention function and aesthetic quality.
2Reliability
If the ground yarn has a great thickness to prevent string exposure, then cut resistance is improved, but the glove becomes less flexible and gives hard feel on touch
Solution Approach 1:
The invention optimizes the ground yarn thickness parameter to a specific range that prevents string exposure while maintaining glove flexibility. By controlling the thickness within defined limits, it resolves the contradiction between reliability and ease of operation.
Solution Approach 2:
The composite structure with organic fiber support yarn and cover yarn provides flexibility and softness while the metal or glass fiber string provides cut resistance. This resolves the contradiction between reliability and ease of operation.
3Reliability
If the cover yarn squeezes the core material to prevent string exposure, then cut resistance is improved, but the ground yarn becomes less flexible
Solution Approach 1:
The invention changes the parameter of cover yarn thickness and winding tension to achieve optimal balance between preventing string exposure and maintaining ground yarn flexibility. This parameter optimization resolves the contradiction between reliability and strength.
Solution Approach 2:
The composite structure allows the cover yarn to provide protection while the support yarn and string provide structural integrity and flexibility. This resolves the contradiction between reliability and strength.
Data Source
Figure 1
Figure 2~3
Figure 4~5(b)
AI summary
Provided is a cut resistant glove (1) having stretchability and being superior in the texture and fit while a string made of a metal or glass fiber is prevented from sticking out, irrespective of the gauge number. A cut resistant glove (1) having a glove main body manufactured by plait knitting using a ground yarn (3) and an additional yarn (4), in which the ground yarn includes a core material (31), and a cover yarn (32) wound around the core material, the core material having a string (31a) made of a metal or glass fiber, and the additional yarn being made of an organic fiber, and in which the ratio of the average thickness of the additional yarn to the average thickness of the ground yarn is no less than 0.9 and no greater than 2.5. The core material preferably further has a support yarn made of an organic fiber (31b) arranged along the string (31a).