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Production technology of viscose extinction monofilament

A production process and extinction technology, which is applied in the directions of viscose-made rayon, spinneret assembly, spinning solution preparation, etc. Long molding time, good solidification and moderate elongation

Inactive Publication Date: 2013-07-24
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

[0043] A production process of viscose matting monofilament uses cellulose fiber pulp as a raw material to obtain viscose matting monofilament through spinning solution preparation—pre-spinning—spinning—post-processing, which specifically includes the following process steps:

[0044] A Spinning fluid preparation

[0045] The cellulose fiber pulp is impregnated, aged, yellowed, dissolved, defoamed and filtered to obtain a spinning solution;

[0046] B 纺前 Injection

[0047] Before spinning, add titanium dioxide solution to the spinning solution to make the weight ratio of titanium dioxide and methyl fiber content in the spinning solution reach 2.5:100, and send it to spinning after mixing evenly;

[0048] The titanium dioxide solution is prepared by uniformly dispersing titanium dioxide in water at a concentration of 15%;

[0049] C Spinning

[0050] The spinning solution is fed into the spinning machine by the glue supply pipeline and is fed quantitatively by the metering pump. The spinni...

Embodiment 2

[0059] Basically the same as Example 1, on this basis:

[0060] Before spinning, add titanium dioxide solution to the spinning solution, so that the weight ratio of the content of titanium dioxide to the methyl fiber in the spinning solution reaches 0.5:100;

[0061] The titanium dioxide solution is prepared by uniformly dispersing titanium dioxide in water at a concentration of 5%;

[0062] The nozzle stretches +80%.

[0063] The shape of the inlet channel of the spinneret hole is parabolic, 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.

[0064] The spinning speed of the spinning machine is 80 m / min.

[0065] The composition of the coagulation bath is: sulfuric acid 140g / l, sodium sulfate 250g / l, zinc sulfate 30g / l; temperature is 55°C.

[0066] The cellulose pulp is wood pulp.

[0067] The obtained viscose matting monofilament has a fineness of 50D, a strength of 80CN, a dry breaking strength of 2.0CN / ...

Embodiment 3

[0069] Basically the same as Example 1, on this basis:

[0070] Before spinning, add titanium dioxide solution to the spinning solution so that the weight ratio of the content of titanium dioxide to the methyl fiber in the spinning solution reaches 5.0:100, mix it evenly and send it to spinning;

[0071] The titanium dioxide solution is prepared by uniformly dispersing titanium dioxide in water at a concentration of 20%;

[0072] The nozzle stretches +70%.

[0073] The shape of the inlet channel of the spinning hole is parabolic, and the spinning hole is circular, and the ratio of the length of the inlet channel to the diameter of the spinning hole is 1.2:1.

[0074] The spinning speed of the spinning machine is 50m / min.

[0075] The composition of the coagulation bath is 120 g / l sulfuric acid, 210 g / l sodium sulfate, and 25 g / l zinc sulfate; and the temperature is 46°C.

[0076] The cellulose pulp is bamboo pulp.

[0077] The obtained viscose matting monofilament has a fineness of 6000D, ...

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Abstract

The invention relates to a production technology of viscose extinction monofilament. The production technology takes cellulosic fiber pulp as a raw material and obtains viscose extinction monofilament through preparation of a spinning solution, injection before spinning, spinning and aftertreatment, and specifically comprises the following steps of: (A) preparing the spinning solution from the cellulosic fiber pulp through steeping, ageing, yellowing, dissolving, defoaming and filtering; (B) adding a titanium dioxide solution into the spinning solution so that the weight ratio of titanium dioxide to alpha cellulose content in the spinning solution reaches (0.5-5.0):100; and uniformly mixing and feeding for spinning; (C) feeding the spinning solution into a spinning machine, and enabling the spinning solution to pass through a spinneret orifice of a single-hole spray head under pressure, and solidifying and molding the formed viscose trickle to form raw silk strips, wherein the spray head is stretched by +60% to +80%, and an inlet channel of the spinneret orifice is in a parabola shape; and (D) performing aftertreatment: performing desulfurization, bleaching, oiling and drying on the raw silk strips to obtain the viscose flat monofilament. According to the production technology provided by the invention, the filament number of the prepared viscose monofilament is 50-6,000D, the strength is high over 75CN, and the requirements on dyeing, weaving and finished product taking are met; and moreover, the viscose extinction monofilament has gentle color and an extinction effect.

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 matting monofilament. Background technique [0002] Monofilament refers to a single filament produced by a single-hole spinneret in the production of chemical fibers, and its fineness is in the range of 50D to 6000D. Monofilament is widely used in weaving, handmade jewelry, home textiles and industrial supplies. Textiles made of monofilament are thin, transparent and feel good. [0003] With the improvement of people's living standards, higher requirements are put forward for the development of fabrics with unique styles. In the past, monofilament was only used in industry and home textiles. Because the monofilament has lower strength than the multifilament of the same size, there are greater difficulties in the weaving field, weaving process and processing technology, which limits the development of monofilament in the textile ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/08D01F11/02D01D4/06D01D1/02D01D5/06D06L3/02D06L4/13
Inventor 邓传东李蓉玲范贤珍陈明付刘键
Owner YIBIN HIEST FIBER
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