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Wet spinning cake dyeing process of viscose filament yarns

A technology for silk cake dyeing and viscose filament, which is applied in liquid/gas/steam yarn/filament processing, textile material processing, textile processing machine accessories, etc., which can solve the problems of many broken ends, high production cost and poor quality and other problems, to achieve the effect of improved swelling treatment quality, good sealing performance and uniform density

Active Publication Date: 2014-01-15
HMEI THREAD CO LTD OF YINBIN SICHUAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Another purpose that the present invention can achieve is to solve the problems of cumbersome and complicated procedures in the prior art; high production costs; poor quality, more hairs and broken ends; and insufficient environmental protection in the production process. By proposing the wet silk of the present invention The cake dyeing process reduces the silk cake dyeing process, reduces the production cost, improves the dyeing quality and efficiency, and the production is environmentally friendly and harmless

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Wet spinning cake dyeing process of viscose filament yarns
  • Wet spinning cake dyeing process of viscose filament yarns
  • Wet spinning cake dyeing process of viscose filament yarns

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A wet silk cake dyeing process for viscose filaments, the process steps include preparing wet silk cakes, loading cylinder sleeves, yarn pressing, creel loading, pre-treatment, dyeing, post-processing and tube forming, characterized in that: The preparation of wet silk cake means that the spun silk cake is pressure-washed and dehydrated to control the moisture content to 50%, and the wet silk cake is obtained without drying; The cylinder cover is put into the yarn column on the yarn disc in the dyeing vat, and the horizontal distance between the outer sides of the wet silk cake on every two adjacent yarn columns is controlled to be 2mm; The cake is completely submerged and the filaments are swelled until the pressure difference between the pressure on the outside of the wet cake and the pressure in the cylinder liner is 1 kg during the internal flow cycle, and the pressure on the outside of the wet cake and the pressure in the cylinder liner during the outflow cycle. Th...

Embodiment 2

[0043] A wet silk cake dyeing process for viscose filaments, the process steps include preparing wet silk cakes, loading cylinder sleeves, yarn pressing, creel loading, pre-treatment, dyeing, post-processing and tube forming, characterized in that: The preparation of the wet silk cake means that the spun silk cake is pressure-washed and dehydrated to control the moisture content to 90%, and the wet silk cake is obtained without drying; The cylinder cover is put into the yarn column on the yarn disc in the dyeing vat, and the horizontal distance between the outer sides of the wet silk cake on every two adjacent yarn columns is controlled to be 50mm; The cake is completely submerged and the filaments are swelled until the pressure difference between the pressure on the outside of the wet cake and the pressure in the cylinder liner is 2kg when the swelling reaches the internal circulation, and the pressure on the outside of the wet cake and the pressure in the cylinder liner are t...

Embodiment 3

[0046] A wet silk cake dyeing process for viscose filaments, the process steps include preparing wet silk cakes, loading cylinder sleeves, yarn pressing, creel loading, pre-treatment, dyeing, post-processing and tube forming, characterized in that: The preparation of wet silk cake means that the spun silk cake is pressure-washed and dehydrated to control the moisture content to 70%, and the wet silk cake is obtained without drying; The cylinder sleeve is put into the yarn column on the yarn disc in the dyeing vat, and the horizontal distance between the outer sides of the wet silk cake on every two adjacent yarn columns is controlled to be 26mm; The cake is completely submerged, and the filaments are swollen. When the swelling reaches the internal flow cycle, the pressure difference between the pressure outside the wet silk cake and the pressure in the cylinder liner is 1.5kg. The pressure difference between the pressures in the jackets was 0.9 kg.

[0047] The pressure diffe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a wet spinning cake dyeing process of viscose filament yarns. According to the invention, the process comprises the steps of preparing a wet spinning cake, loading a cylinder sleeve, pressing yarns, loading yarns to a yarn frame, pre-treating the yarns, dyeing the yarns, post-treating and forming yarn bobbins, wherein in the step of preparing the wet spinning cake, a spun cake is controlled at the water content of at least 50% after being extruded, washed and dehydrated; the horizontal distance between the external sides of wet spinning cakes on two adjacent yarn columns is controlled to be 2-50 mm in the process of loading the yarns to the yarn frame; the pre-treatment is swelling the yarns; the pressure difference between the pressure on the external side of each wet spinning cake and the pressure in a cylinder sleeve when the yarns are swelled to internal flow circulation is at least 1 kg; meanwhile, the pressure difference between the pressure on the external side of the wet spinning cake and the pressure in the cylinder sleeve when the yarns are swelled to external flow circulation is at least 0.6 kg. Through the adoption of the complete technical scheme disclosed by the invention, the sealing property of the wet spinning cake is improved so that the final dyeing reaches a uniform state; meanwhile, the efficiency of the whole wet spinning cake dyeing process can be increased, the production cost can be largely reduced and the pollution to the environment can be reduced.

Description

technical field [0001] The invention relates to a viscose filament dyeing process, more specifically, the invention relates to a viscose filament wet cake dyeing process, which belongs to the technical field of viscose filament wet cake dyeing in the printing and dyeing industry. Background technique [0002] Viscose fiber uses cotton linters or wood as raw materials to obtain pulp through purification processes such as cooking and bleaching. It is made by a series of production processes such as processing. The main process is as follows: [0003] 1. Preparation of viscose spinning solution: react pulp with concentrated alkali to make alkali cellulose, then react alkali cellulose with carbon disulfide to generate cellulose xanthate; [0004] 2. Spinning forming: the fine flow of viscose extruded through the spinning hole enters the coagulation bath containing acid, the cellulose xanthate is decomposed, and the cellulose is regenerated; [0005] 3. Post-processing: includ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B3/04D06B23/04D06B23/00D06B15/00D06B15/10
Inventor 冯涛廖周荣段太刚何大雄汤伟
Owner HMEI THREAD CO LTD OF YINBIN SICHUAN
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