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A production process of pre-oxidized silk core-spun yarn

A production process and technology of pre-oxygenated filaments, applied in the direction of yarn, conjugated synthetic polymer rayon, cellulose/protein conjugated rayon, etc. Low, fiber brittleness and other problems, to achieve the effect of improving bonding ability and uniformity, improving strength and high strength

Active Publication Date: 2022-06-17
兰溪新奥华纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the fiber strength of pre-oxidized silk is low, and the fiber is brittle, which makes it difficult to apply to textiles, which limits the application range of pre-oxidized silk

Method used

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  • A production process of pre-oxidized silk core-spun yarn
  • A production process of pre-oxidized silk core-spun yarn
  • A production process of pre-oxidized silk core-spun yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: a kind of production technology of pre-oxygenated silk core-spun yarn,

[0034] The raw materials used are: 100 kg of polyacrylonitrile, 13 kg of milk casein, 100 kg of dodecanol polyoxyethylene ether, 15 kg of zinc borate, and 10 kg of zinc oxide whiskers. The zinc oxide whiskers used were fibrous zinc oxide whiskers.

[0035] The specific steps are:

[0036] S1: mix 100kg of polyacrylonitrile with 13kg of milk casein to obtain composite spinning raw materials;

[0037] S2: heating and melting the composite spinning raw material, extruding it into a tow through a spinneret, and after blowing and cooling, the primary fiber is obtained, and the diameter of the obtained primary fiber is 15 μm;

[0038] S3: mix 15kg zinc borate and 100kg dodecanol polyoxyethylene ether, then add 10kg zinc oxide whiskers in the mixed solution to obtain a treatment solution;

[0039] S4: Heat the treatment liquid to 110° C., and pad the treatment liquid onto the spun fibers ...

Embodiment 2

[0041] Embodiment 2: a kind of production technology of pre-oxygenated silk core-spun yarn,

[0042] The difference from Example 1 is that each raw material consumption and each process parameter are different, as shown in Table 1 below.

Embodiment 3-4

[0043] Embodiment 3-4: a kind of production technology of pre-oxygenated silk core-spun yarn,

[0044] The difference from Example 1 is that the dosage of milk casein is different, and the specific dosage is shown in Table 1 below.

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Abstract

This application relates to the field of textiles, and specifically discloses a production process of pre-oxidized silk core-spun yarn, which includes the following process steps: S1: mixing polyacrylonitrile and milk casein to obtain composite spinning raw materials; S2: using composite spinning raw materials to process Spinning to obtain primary fibers; S3: Mix zinc borate and lauryl polyoxyethylene ether, and then add zinc oxide whiskers to the mixed liquid to obtain a treatment liquid; lauryl polyoxyethylene ether, zinc borate and zinc oxide The dosage ratio of whiskers is 10:(1.5-2):(1-1.5); S4: heat treatment solution, and apply the treatment solution to the primary fiber by two-dipping and two-rolling method, and then perform pre-oxidation treatment after drying , to obtain pre-oxidized yarn; S5: use pre-oxidized yarn as the core, twist the pre-oxidized yarn, and then perform parallel twisting with polyester staple fiber, and obtain the finished core-spun yarn after winding. The pre-oxidized silk core-spun yarn prepared by this application has higher fiber strength.

Description

technical field [0001] The present application relates to the technical field of textiles, in particular to a production process of a pre-oxygenated core-spun yarn. Background technique [0002] Pre-oxidized fiber, also known as polyacrylonitrile pre-oxidized fiber, is a black fiber formed by air oxidation of polyacrylonitrile fiber at a certain temperature to form a partially cyclic structure. Pre-oxygenated wire has excellent flame retardant and heat resistance, limiting oxygen index > 50%, and the fiber does not melt, soften and shrink during combustion, and has no melt droplets. [0003] However, the fiber strength of pre-oxygenated silk is low, and the fiber is brittle, which is difficult to apply to textiles, which limits the application range of pre-oxygenated silk. SUMMARY OF THE INVENTION [0004] In order to improve the fiber strength of the pre-oxygenated silk, the present application provides a production process of the preoxygenated core-spun yarn. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/02D01F8/08D01F11/02D01F11/06D02G3/04D02G3/36
Inventor 方招祥
Owner 兰溪新奥华纺织科技有限公司