A kind of anti-cut yarn and preparation method thereof

A technology of anti-cutting and yarn, which is applied in the direction of yarn, rayon manufacturing, textile and paper making, etc. It can solve the problems of high cost and non-conformity with the production process, achieve good skin-core uniformity, save raw material costs, and shorten the process cycle Effect

Active Publication Date: 2022-03-04
SHANDONG XINGYU GLOVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The core thread is made of finished polyester yarn, spandex yarn, industrial yarn, PVC fiberglass filament yarn that has been processed and shaped. These shaped finished yarns are not covered in the process of coating ultra-high molecular weight polyethylene fiber yarn. It can be stretched and stretched according to the desired stretching ratio, so it is inevitable to achieve good uniformity and uniform skin-core with the external ultra-high molecular weight polyethylene fiber yarn during the coating process, which does not conform to the production process (2) Purchasing finished polyester yarns, industrial yarns, PVC glass spandex yarns that have been processed and shaped, the cost of raw materials is relatively high

Method used

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  • A kind of anti-cut yarn and preparation method thereof
  • A kind of anti-cut yarn and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a method for preparing a cut-resistant yarn, including an outer covering wire and a core wire.

[0038] Outer wire: The outer wire is an ultra-high molecular weight polyethylene fiber filament with a molecular weight of 400,000-800,000 and a diameter of 400D. Core thread: 200dtex polyester semi-finished yarn POY, containing 4.5wt% boron nitride powder with a particle size of 0.01-1 micron. The core wire is stretched and elasticized by rollers, the setting temperature is 170°C, the stretching ratio is 1.7, the outer covering wire is twisted and wrapped on the outside of the core wire, and twisted into strands to obtain a cut-resistant yarn.

[0039] The mass components of the prepared cut-resistant yarn are: polyester semi-finished yarn POY: 40wt%; ultra-high molecular weight polyethylene fiber filament: 60wt%.

Embodiment 2

[0041] This embodiment provides a method for preparing a cut-resistant yarn, including an outer covering wire and a core wire.

[0042] Outer wire: The outer wire is an ultra-high molecular weight polyethylene fiber filament with a molecular weight of 400,000-800,000 and a diameter of 400D. Core thread: 200dtex polyester semi-finished yarn POY, containing 6wt% boron nitride powder with a particle size of 0.01-1 micron. Use rollers to stretch and elasticize the core wire. The setting temperature is 170°C and the stretching ratio is 1.7. Twisting and wrapping the outer covering wire on the outside of the core wire, twisting into a strand and drawing at the same time, spraying air pressure through the grid nozzle The compressed air of 1.5-3.5Pa is used to prepare cut-resistant empty yarn. Air charter air pressure is 2.5Pa compressed air.

[0043] The mass components of the prepared cut-resistant yarn are: polyester semi-finished yarn POY: 40wt%; ultra-high molecular weight poly...

Embodiment 3

[0045] This embodiment provides a method for preparing a cut-resistant yarn, including an outer covering wire and a core wire.

[0046] Outer wire: The outer wire is an ultra-high molecular weight polyethylene fiber filament with a molecular weight of 400,000-800,000 and a diameter of 400D.

[0047] Core thread: 200dtex polyester semi-finished silk POY and 140D spandex thread parallel as the core thread. Wherein, the polyester semi-finished yarn POY contains 5 wt% of boron nitride powder with a particle size of 0.01-1 micron. Two pairs of rollers are used to stretch, stretch and shape the core wire. The setting temperature is 160°C and the draw ratio is 1.8. The compressed air with a pressure of 1.5-3.5Pa is sprayed from the grid nozzle to prepare cut-resistant empty-packed yarn. Air charter air pressure is 2.5Pa compressed air.

[0048] The mass components of the cut-resistant yarn prepared are: polyester semi-finished yarn POY: 42wt%; spandex yarn: 26wt%; ultra-high molec...

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Abstract

The invention relates to a method for preparing a cut-resistant yarn, which includes a core wire and an outer covering wire; wherein, the core wire includes a polyester or nylon semi-finished fiber filament, and inorganic powder is mixed into the polyester or nylon semi-finished fiber filament One or more of body, inorganic short fiber and aramid short fiber; the outer covering wire contains ultra-high molecular weight polyethylene fiber filament; the outer covering wire is wrapped on the outside of the core wire; during the covering process , using a roller to stretch, stretch and shape the core wire, and at the same time cover the outer covering wire on the outer layer of the core wire to make a cut-resistant yarn. Compared with the existing technology, polyester or nylon semi-finished fiber POY is used as the core wire, which has lower cost, and because POY has a certain stretch ratio, the stretch ratio and elastic can be adjusted online according to the needs when covering the outer covering wire. Shaped, so as to produce cut-resistant yarn with better evenness and sheath-core uniformity, which meets the requirements of process production. The invention adopts a one-step processing method to shorten and simplify the whole process cycle.

Description

technical field [0001] The invention relates to a composite yarn, especially a cut-resistant yarn and a preparation method thereof. Background technique [0002] Ultra-high molecular weight polyethylene fiber is currently the fiber with the highest specific strength among industrialized fiber materials. It has excellent properties such as high strength, high modulus, wear resistance, and chemical corrosion resistance. It is widely used in national defense, military, marine cables, personal protection, etc. field. With the continuous deepening of military-civilian integration, the application of ultra-high molecular weight polyethylene fibers in the civilian market has gradually increased, and the civilian market dominated by cut-resistant gloves has gradually occupied a dominant position. At present, the commonly used protective gloves made of 400D ultra-high molecular weight polyethylene fiber have the highest cutting level of EN388-2003 standard level 3, and are very unst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/04D02G3/36D01F1/10D02G3/32
CPCD02G3/045D02G3/36D01F1/10D02G3/328D10B2331/04D10B2331/02D10B2331/10
Inventor 周海涛李杰王纪乾
Owner SHANDONG XINGYU GLOVES
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