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Method for preparing coarse denier and ultra-coarse denier viscose fiber and prepared fiber

A viscose fiber and a manufacturing method technology, applied in the field of viscose fiber, can solve the problem that the requirements of various varieties and specifications of fiber raw materials cannot be met, there is no method for producing coarse denier and ultra-coarse denier viscose fiber, and synthetic fibers are antistatic. problems such as poor properties, to achieve the effect of bright dyeing, sufficient fineness specifications, and excellent performance

Inactive Publication Date: 2008-01-16
CHTC HELON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coarse denier and super coarse denier viscose fibers can not only be blended with synthetic fibers and wool, but also purely spun to make carpets, tapestries and other blankets. For example, the raw materials used in the production of carpets are mainly wool and synthetic fibers. Due to the price of wool It is more expensive, the production cost is high, and the antistatic property of synthetic fiber is poor. It greatly reduces the production cost and expands the source of raw materials for carpets. Therefore, the current fineness specifications of viscose fibers cannot meet the requirements of the textile industry for multiple varieties and specifications of fiber raw materials.
And there is no coarse denier, ultra-coarse denier viscose fiber of the standard series at present for people to use, and in the production of viscose fiber, people also do not have the method for producing coarse denier and ultra-coarse denier viscose fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Adopt cotton pulp to make spinning viscose, control its viscose composition to be: alpha cellulose 8.7 ± 0.1%, sodium hydroxide 6.0 ± 0.1%, viscosity (falling ball method) 45 ± 3s, maturity (10% NH4CI value) 17 ± 2ml, to obtain cellulose xanthate polymer spinning viscose.

[0014] The above-mentioned cellulose xanthate high polymer spinning viscose is spun into a spinneret with a circular nozzle hole and a size of 25*3800-0.06mm, and is pressed into a spinning coagulation bath with a temperature of 49±1°C. Silk forming, the composition of the spinning coagulation bath is 128g / lH2SO4, 11g / lZnSO4, 330g / lNa2SO4, the filament is understretched through the nozzle, understretched between the discs, understretched in three baths, and refined with various baths to obtain 5.56dtex*102mm Coarse denier viscose.

[0015] The dry strength of the prepared coarse denier viscose fiber is 2.35cN / dtex, the wet strength is 1.05cN / dtex, the dry elongation is 26.8%, the fineness is 27.72dt...

Embodiment 2

[0017] Cotton and wood pulp are used together in a ratio of 70:30 by weight to obtain spinning viscose, and the viscose composition is controlled to be: α-cellulose 8.9 ± 0.1%, sodium hydroxide 4.8 ± 0.1%, viscosity (falling ball method) 45 ± 3s, maturity (10% NH4CI value) 16 ± 2ml, obtain cellulose xanthate high polymer spinning viscose.

[0018] The above-mentioned cellulose xanthate high polymer spinning viscose is pressed into a spinning coagulation bath with a temperature of 50±1°C using a spinneret with a triangular nozzle hole and a size of 25*1400-0.5383mm, and the spinning The composition of the silk coagulation bath is 128g / lH2SO4, 2g / lZnSO4, 330g / lNa2SO4 for spinning and forming. After the filaments are understretched by the nozzle, understretched between the discs, and understretched in four baths, they are refined with various bath liquids to obtain a coarse denier of 27.78dtex*102mm Viscose fiber.

[0019] The dry strength of the obtained fiber is 2.35cN / dtex, t...

Embodiment 3

[0021] Adopt wood pulp to make spinning viscose, control its viscose composition to be: alpha cellulose 12.8 ± 0.1%, sodium hydroxide 8.8 ± 0.1%, viscosity (falling ball method) 65 ± 3s, maturity (10% NH4CI value) 26 ± 2ml, to obtain cellulose xanthate polymer spinning viscose.

[0022] Use the above-mentioned cellulose xanthate polymer spinning viscose to use a flat spinneret with nozzle holes 58*0.07*240, press it into the spinning coagulation bath with a temperature of 63±1°C, and the spinning coagulation bath Composed of 138g / lH2SO4, 12g / lZnSO4, 380g / lNa2SO4, spinning and forming, the filaments are scouring with various bath liquids after a total stretch of 26% to obtain 9988.89dtex ultra-coarse denier flat viscose fibers.

[0023] The dry strength of the obtained fiber is 1.56cN / dtex, and the fineness is 9988.89dtex. It can be used in the preparation of cellulose handicrafts.

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PUM

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Abstract

The invention discloses a manufacturing method of coarse-denier and ultra-coarse denier viscose fibers and the fibers produced by the method. The method comprises using a cellulose xanthate polymer in viscous state, spraying from spinneret holes with high aperture into a coagulating bath solution composed of more than two components selected from sulfuric acid, zinc sulfate and sodium sulfate, allowing molding, subjecting the cellulose macromolecules in viscose elastic state to the combined tension of bath solution and air, and proportionally regulating the draft by different draft distributions to obtain coarse-denier or ultra-coarse denier viscose fiber. The method is simple and easy to operate. The produced coarse-denier and ultra-coarse denier viscose fibers have various specifications and excellent performance, and can meet the requirements of rich variety and specification of fibrous raw materials in textile industry. The invention enlarges the application range of viscose fibers.

Description

technical field [0001] The invention relates to the technical field of viscose fibers, in particular to a method for producing coarse denier and ultra-coarse denier viscose fibers and the coarse denier and ultra-coarse denier viscose fibers produced by the method. Background technique [0002] Viscose fiber is an important variety of chemical fibers, but the specifications of conventional viscose fiber deniers currently used by people are less, and most of them are concentrated in the range of 1.2 to 5 deniers. Coarse denier and super coarse denier viscose fibers can not only be blended with synthetic fibers and wool, but also purely spun to make carpets, tapestries and other blankets. For example, the raw materials used in the production of carpets are mainly wool and synthetic fibers. Due to the price of wool It is more expensive, the production cost is high, and the antistatic property of synthetic fiber is poor. The production cost is greatly reduced, and the source of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/10D01D5/253D01D5/12D02J1/22D01F2/08
Inventor 刘海洋姜明亮桑洪波马峰刚卢海蛟
Owner CHTC HELON
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