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A process for manufacturing viscose coarse denier flat yarn

A technology of flat yarn and viscose, applied in the field of viscose fiber production, which can solve the limitation of the strength and elongation of coarse denier flat yarn, the failure to realize the recycling of carbon disulfide, and the strength and elongation of coarse denier flat yarn meet the requirements To achieve the effect of enhanced process continuity, reduced manual participation, and continuous process

Inactive Publication Date: 2016-02-10
YIBIN GRACE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Coarse denier flat yarn will produce pollutants such as carbon disulfide due to chemical reaction during the solidification and molding process, and these pollutants are directly discharged at high altitude through the exhaust system on the production equipment, causing great pollution to the surrounding environment, and there is no Realize the recovery and recycling of carbon disulfide, resulting in the waste of carbon disulfide and the increase of production cost
[0008] All of them use a coagulation bath to treat the flat yarn, but a coagulation bath cannot make the strength and elongation of the coarse denier flat yarn meet the requirements, which has limitations in improving the strength and elongation of the coarse denier flat yarn, which is not convenient Downstream market development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] preparation of viscose

[0036] The prepared viscose methylcellulose content is 8.9%, the viscosity is 48 seconds, and the degree of maturity is expressed as NH 4 The CL is 9.5ml, the alkali content is 4.7%, the temperature is 17°C, and the number of small bubbles is less than 25.

[0037] One solidification molding

[0038] The viscose is sent into the candle filter through the action of the metering pump and the pendulum, and then sent into the spinneret through the action of the gooseneck after being filtered by the candle filter, and the spinneret is placed in the first solidification In the bath, the viscose is sprayed out from the spinneret and enters the first solidification bath for one-time solidification and molding. During primary solidification and molding, carbon disulfide is recovered.

[0039] The primary coagulation forming coagulation bath includes sulfuric acid, sodium sulfate and zinc sulfate, wherein the content of sulfuric acid is 115g / l, the con...

Embodiment 2

[0054] preparation of viscose

[0055] The prepared viscose methylcellulose content is 8.9%, the viscosity is 43 seconds, and the maturity is expressed as NH 4 The CL is 9.0ml, the alkali content is 4.7%, the temperature is 18°C, and the number of small bubbles is less than 25.

[0056] One solidification molding

[0057] The viscose is sent into the candle filter through the action of the metering pump and the pendulum, and then sent into the spinneret through the action of the gooseneck after being filtered by the candle filter, and the spinneret is placed in the first solidification In the bath, the viscose is sprayed out from the spinneret and enters the first solidification bath for one-time solidification and molding. During primary solidification and molding, carbon disulfide is recovered.

[0058] The primary coagulation forming coagulation bath includes sulfuric acid, sodium sulfate and zinc sulfate, wherein the content of sulfuric acid is 118g / l, the content of so...

Embodiment 3

[0073] preparation of viscose

[0074] The prepared viscose methylcellulose content is 9.0%, the viscosity is 46 seconds, and the maturity is expressed as NH 4 The CL is 9.1ml, the alkali content is 4.8%, the temperature is 18°C, and the number of small bubbles is less than 25.

[0075] One solidification molding

[0076] The viscose is sent into the candle filter through the action of the metering pump and the pendulum, and then sent into the spinneret through the action of the gooseneck after being filtered by the candle filter, and the spinneret is placed in the first solidification In the bath, the viscose is sprayed out from the spinneret and enters the first solidification bath for one-time solidification and molding. During primary solidification and molding, carbon disulfide is recovered.

[0077] The primary coagulation forming coagulation bath includes sulfuric acid, sodium sulfate and zinc sulfate, wherein the content of sulfuric acid is 118g / l, the content of so...

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Abstract

The invention relates to a technology used for manufacturing mucilage glue coarse denier flat yarns. The technology comprises the following technology steps of mucilage glue preparing, primary consolidation forming, secondary consolidation forming, primary water washing, refining and cylinder forming or twist forming, and carbon disulfide is recycled when primary consolidation forming and secondary consolidation forming are conducted. According to the technology, the carbon disulfide is recycled and used, direct high-altitude emission will not occur any longer, and pollution to the environment is lowered. Meanwhile, production cost of enterprises is reduced, strength and elongation of the mucilage glue coarse denier flat yarns manufactured in the technology completely meet requirements, and the technology is very beneficial for development of the lower-reach market.

Description

technical field [0001] The invention relates to the field of viscose fiber production, in particular to a production process of flat yarn. Background technique [0002] Flat yarn combines the excellent properties of ordinary Vicat fiber and hemp fiber. The fabric is smooth, elastic and soft, rich in three-dimensionality, comfortable and pleasant; it has the characteristics of moisture absorption and heat dissipation, and is easier to dye. [0003] The application number is 200610021657.1, and the Chinese invention patent application published on March 5, 2008 discloses a super-coarse denier flat yarn and its preparation method. The disclosed preparation method includes preparation of color paste, deep aging, and the aging time is 12 ~15 hours, ripening degree 8.0±1.0ml, defoaming, spinning with spinning machine, washing with water, drying into cylinder. The method can obtain 10-20 single filaments, 60-120D single-filament fibre, and 90-110 twists per meter. Using the metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/06D01D10/00D01D10/06D01F13/02D01F11/02
CPCY02P70/62
Inventor 邓传东李蓉玲贺敏李春弟杨传杰
Owner YIBIN GRACE