Production process of colored viscose filament yarns

A technology of viscose filament and production process, which is applied in the production of colored viscose filament, the production process of viscose filament, and the production process of colored viscose filament, which can solve the problem of inability to carry out large-scale production and increase environmental protection. Cost, narrow scope of application and other issues, to achieve the effect of broadening color varieties, avoiding loss and pollution, and broadening the application market

Active Publication Date: 2012-12-05
YIBIN GRACE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the secondary pollution caused by the addition of reducing agent sodium hydrochloride to the vat dyes in the prior art, which increases the cost of environmental protection, and does not use oxidants to cause large-area color flowers and spots to affect product quality, so that the process can The scope of application is very narrow, and the addition of reducing agents makes it impossible to carry out large-scale production. A production process for colored viscose filaments is provided, so that when vat dyes are used in the process, there is no need to add reducing agents and hydrosulfites, reducing production process, reduce production cost, and at the same time, this patent also enables all vat dyes to be dyed evenly, which improves product quality, broadens the color range of products, and avoids the reducing environment of viscose collagen solution, so that the process is simple and controllable. make industrialization possible

Method used

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  • Production process of colored viscose filament yarns

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A production process for colored viscose filaments, comprising the following process steps:

[0029] A. Color paste preparation:

[0030] Prepare 10% of the reduced date red 2R aqueous solution, stir evenly, and obtain the color slurry;

[0031] B. Preparation of colored viscose:

[0032] Mix the color paste liquid prepared in step A into the dissolving barrel after yellowing in proportion, and the mass percentage of dyestuff and methyl cellulose in the colored viscose after mixing is 2%;

[0033] C. Spinning and dyeing:

[0034] After the mixed colored viscose is produced according to the ordinary viscose filament production process, after filtration and defoaming, it is pumped into the spinning machine by the glue supply pump for 120D / 30F spinning and forming. The raw silk strips coming out of the acid bath are passed through the air bath and The deacidified water containing 1 gram / liter of hydrogen peroxide is oxidized to make the color show the original color and...

Embodiment 2

[0036] A production process for colored viscose filaments, comprising the following process steps:

[0037] A. Color paste preparation:

[0038] Weigh SU-08 sulfur bright green (sulfur green 14), add it to the sodium hydroxide solution, the mass concentration of the sodium hydroxide solution is 6%, stir evenly to obtain the color slurry, the total mass concentration of the dye in the color slurry is 5%;

[0039] B. Preparation of colored viscose:

[0040] Mix the prepared color slurry solution in step A into a filtered intermediate barrel in proportion, and the mass percentage of dyestuff and methyl cellulose in the mixed colored viscose is 0.8%;

[0041] C. Spinning and dyeing:

[0042] After the mixed colored viscose is produced according to the ordinary viscose filament production process, after filtration and defoaming, it is pumped into the spinning machine by the glue supply pump for 300D / 50F spinning and forming, and the raw silk strips coming out of the acid bath ar...

Embodiment 3

[0044] A production process for colored viscose filaments, comprising the following process steps:

[0045] A. Color paste preparation:

[0046] Take vat yellow G and join in the sodium hydroxide solution, the mass concentration of the sodium hydroxide solution is 3%, stir evenly, obtain the color paste liquid, the total mass concentration of the dyestuff in the color paste liquid is 7%;

[0047] B. Preparation of colored viscose:

[0048] Mix the prepared color paste in step A in proportion to the intermediate barrel after the second filter, and the mass percentage of dyestuff and methyl cellulose in the mixed colored viscose is 1.5%;

[0049] C. Spinning and dyeing:

[0050]After the mixed colored viscose is produced according to the ordinary viscose filament production process, after filtration and defoaming, it is pumped into the spinning machine by the glue supply pump for 150D / 30F spinning and forming. The raw silk strips coming out of the acid bath are passed through ...

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Abstract

The invention relates to a production process of colored viscose filament yarns, and belongs to the technical field of the production and the manufacturing of the colored viscose filament yarns, particularly the manufacturing of the colored viscose filament yarns by using a before-spinning solution dyeing method. By using the production process, through improving color paste solution preparation, colored viscose preparation and spinning dyeing formation, a novel reducing agent is not introduced anymore; the production investment and the secondary pollution of the reducing agent are reduced; by using the production process, a dye paste solution is directly reduced by directly utilizing a reducing environment in a viscose; the reducing agents such as sodium hydrosulfite are not introduced anymore; production working procedures are decreased; the production cost is reduced; meanwhile, by using the production process, an oxidant is used in a targeted way; all reduced dyes can also carry out uniform dyeing; the product quality is improved; and the color range of a product is broadened.

Description

technical field [0001] The invention relates to a production process of viscose filament, more specifically, the invention relates to a production process of colored viscose filament, which belongs to the production and manufacture of colored viscose filament, especially the production of colored viscose filament dyeing method before spinning. Viscose filament technology field. Background technique [0002] At present, there are three main production methods of colored viscose filaments on the market: [0003] 1. In the post-processing process of finished fibers, the finished white silk is dyed and finished, and then dyed. This method will generate a large amount of dyeing and finishing colored wastewater, causing environmental pollution; [0004] 2. Use insoluble color particles such as pigments and paints to mix them into spun rubber before spinning, and then directly spin them. Although this method eliminates the generation of colored wastewater, the color of the finishe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/16D01F11/02
Inventor 邓传东李蓉玲刘英郭青龙余兰英
Owner YIBIN GRACE
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