Viscose monofilament production process

A production process and viscose technology, applied in the direction of artificial filament made of viscose, spinneret assembly, cellulose/protein artificial filament chemical post-treatment, etc., can solve the problem of not meeting market demand and affecting fabric wear Performance, viscose monofilament low fineness and other problems, to achieve the effect of ensuring spinnability, uniform product width and good spinnability

Active Publication Date: 2015-04-22
YIBIN HIEST FIBER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. Conventional production technology will cause the product filaments to be too hard and rough to the touch, resulting in difficulties in dyeing, weaving and other subsequent processes, and seriously affecting the wearability of the fabric
[0007] 2. Viscose monofilament has low fineness and low strength, so it cannot be dyed and weaved in the next process, and cannot meet market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A production process of viscose monofilaments, using cellulose fiber pulp as raw material, preparing viscose monofilaments through spinning solution preparation-spinning-after treatment, specifically including the following process steps:

[0038] A spinning solution preparation

[0039] Cellulose fiber pulp is soaked, aged, yellowed, dissolved, defoamed and filtered to obtain spinning solution;

[0040] B spinning

[0041] The spinning solution is sent into the spinning machine by the glue supply pipeline, and is sent quantitatively by the metering pump. The spinning solution passes through the single-hole nozzle and passes through the spinneret hole under pressure to form a fine flow of viscose, which then enters the coagulation bath. After solidification and molding, raw silk strips are formed.

[0042] The nozzle stretching +60%;

[0043] The shape of the entrance channel of the spinneret hole is a parabola;

[0044] The spinning speed of described spinning mach...

Embodiment 2

[0050] Basically the same as embodiment 1, on this basis:

[0051] The nozzles described are stretched +80%.

[0052] The inlet channel of the spinneret hole is a parabola, and the spinneret hole is circular, and the ratio of the length of the inlet channel to the diameter of the spinneret hole is: 1.5:1.

[0053] The spinning speed of the spinning machine is 80m / min.

[0054] The composition of the coagulation bath is: sulfuric acid 140g / L, sodium sulfate 250g / L, zinc sulfate 30g / L; the temperature is 55°C.

[0055] The cellulose pulp is wood pulp.

[0056] The fineness of the obtained viscose monofilament is 50D, the strength reaches 80CN, the dry breaking strength is 2.0CN / dtex, the wet breaking strength is 1.5CN / dtex, and the dry breaking elongation is 20%.

Embodiment 3

[0058] Basically the same as embodiment 1, on this basis:

[0059] The nozzles described are stretched +70%.

[0060] The inlet channel of the spinneret hole is a parabola, and the spinneret hole is circular, and the ratio of the length of the inlet channel to the diameter of the spinneret hole is: 1.2:1.

[0061] The spinning speed of the spinning machine is 50m / min.

[0062] The composition of the coagulation bath is: sulfuric acid 120g / L, sodium sulfate 210g / L, zinc sulfate 25g / L; the temperature is 46°C.

[0063] The cellulose pulp is bamboo pulp.

[0064] The fineness of the obtained viscose monofilament is 6000D, the strength reaches 85CN, the dry breaking strength is 1.6CN / dtex, the wet breaking strength is 1.2CN / dtex, and the dry breaking elongation is 18%.

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Abstract

The invention relates to a viscose monofilament production process. Cellulose fiber pulp is adopted as a raw material, and the steps such as spinning solution preparation, spinning, and post-treatment are carried out, such that the viscose monofilament is obtained. The method specifically comprises the process steps that: (A) cellulose fiber pulp is subjected to impregnation, aging, yellowing, dissolving, defoaming, and filtering, such that the spinning solution is prepared; (B) the spinning solution is delivered into a spinning machine, and passes through a spinning hole with a single-hole nozzle under pressure, such that viscose thin stream is formed, and raw filament strip is formed after coagulation molding, wherein jet nozzle stretch is +60% to +80%, and a spinning hole inlet pore channel is in a parabolic shape; and (C) post-treatment is carried out, wherein the raw filament strip is subjected to desulfurization, bleaching, oiling, and bake-drying, such that the viscose monofilament is obtained. With the production process provided by the invention, produced viscose monofilament has fineness of 50-6000D, and high strength higher than 75CN. With the viscose monofilament, requirements by dyeing, weaving and finished garments can be satisfied.

Description

technical field [0001] The invention relates to the technical field of viscose in the textile industry, in particular to a production process of viscose monofilament. Background technique [0002] Monofilament refers to a single filament produced by a single-hole spinneret in chemical fiber production, and its fineness is in the range of 50D~6000D. Monofilament is widely used in weaving, handmade accessories, home textiles and industrial supplies. The textile quality made of monofilament is thin, transparent and feels good. [0003] With the improvement of people's living standards, higher requirements have been put forward for the development of fabrics with unique styles. Monofilament was only used in industry and home textile fields in the past. Due to the lower strength of monofilament than multifilament of the same denier, there are greater difficulties in weaving technology and processing technology in the field of weaving, which limits the development of monofilame...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/08D01F11/02D06L3/02D01D4/02D06L4/13
Inventor 邓传东李蓉玲范贤珍陈明付刘键
Owner YIBIN HIEST FIBER
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