Production process of fine denier viscose staple fiber

A viscose staple fiber, production process technology, applied in the direction of filament generation, textile and papermaking, stretch spinning, etc., can solve the problem that the fiber strength cannot reach the target, the crystallization area of ​​fine denier viscose staple fiber cannot be well formed, Problems such as poor drafting rate control in the drafting process can be achieved to reduce the probability of occurrence, improve the strength index, and improve the spinnability of the spinning yarn

Inactive Publication Date: 2013-09-18
YIBIN GRACE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to solve the problem that the draft rate control of the drafting process in the above-mentioned prior art is not good, resulting in that the crystallization area in the fine-denier viscose staple fiber cannot be well formed, and the fiber strength cannot reach the target. It provides a fine-denier The production process of viscose fiber can make the crystallization area in the fiber can be formed quickly and with high quality in the production process of fine-denier viscose staple fiber, ensuring the strength of the final fine-denier staple fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A production process for fine-denier viscose staple fibers, comprising preparing viscose spinning stock solution, spinning, filament forming, and spinning, and finally obtaining fine-denier viscose fibers. In the spinning step, the formed The filaments are guided and drawn through the wire guide device and the drafting device. During the process of guide wire and drafting, the total draft rate is controlled to 130%, wherein: the spinneret draft rate is controlled to 60%; The air draft rate is controlled at 25%; the plasticized draft rate is controlled at 5%.

Embodiment 2

[0039] A production process for fine-denier viscose staple fibers, comprising preparing viscose spinning stock solution, spinning, filament forming, and spinning, and finally obtaining fine-denier viscose fibers. In the spinning step, the formed The filaments are guided and drawn through the wire guiding device and the drafting device. During the process of guiding the wire and drawing, the total draft rate is controlled at 160%, of which: the spinneret draft rate is controlled at 80%; The air draft rate is controlled at 40%; the plasticized draft rate is controlled at 12%.

Embodiment 3

[0041] A production process for fine-denier viscose staple fibers, comprising preparing viscose spinning stock solution, spinning, filament forming, and spinning, and finally obtaining fine-denier viscose fibers. In the spinning step, the formed The filaments are guided and drawn through the wire guiding device and the drafting device. During the process of guiding the wire and drawing, the total draft rate is controlled at 145%, wherein: the spinneret draft rate is controlled at 70%; The air draft rate is controlled at 32%; the plasticized draft rate is controlled at 9%.

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Abstract

The invention relates to a production process of fine denier viscose staple fiber, and belongs to the technical field of production of the viscose staple fiber. In the spinning step, a formed silk is guided and drafted by a silk guiding device and a drafting device; and in the silk guiding and drafting process, the total drafting rate is controlled at 130-160%, wherein the spinneret drafting rate is controlled at 60-80%, the air drafting rate is controlled at 25-40% and the plastic drafting rate is controlled at 5-12%. Through selection of the total drafting rate and various drafting rate allocations, in the spinning forming process and in the plastic state, neat arrangement of cellulose macromolecules of the fine denier staple viscose fiber is facilitated, rapid and high-quality formation of a crystalline area in the fiber is facilitated, and thus the fine denier viscose staple fiber is ensured to reach a higher strength index.

Description

technical field [0001] The invention relates to a production process of viscose staple fiber, more specifically, the invention relates to a production process of fine denier viscose staple fiber, which belongs to the technical field of viscose staple fiber production. Background technique [0002] The application field of viscose staple fiber is getting wider and wider, and its application in the most widely used fields of spinning, weaving and non-woven fabrics is getting deeper and deeper. For example, in spinning enterprises, in order to expand the new functions of their downstream products, they have developed More adaptable to market demand - softer, softer and smoother products, the finer and finer requirements for viscose staple fiber are required. At present, the conventional products of viscose staple fiber are mainly 1.5D and 1.2D, and there is a small amount of 1D. The production method and technology of viscose staple fiber with a fine denier of 0.8-1D still need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/12D01D11/04
Inventor 邓传东李荣玲贺敏范贤珍陈晓芳胡远杰
Owner YIBIN GRACE
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