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A fast, short-flow and low-emission dyeing process for rayon cheese

A cheese, short process technology, applied in the field of rayon dyeing, can solve the problems of shortening the process time and low efficiency of the rayon process, and achieve the effect of reducing the degree of unevenness

Active Publication Date: 2021-11-02
杭州众智纺织科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a fast, short-flow and low-emission dyeing process for rayon cheese, especially for various dyeing dyes with fast short-flow and low-emission dyeing process, shortening the entire process flow Time, solve the situation of low efficiency of rayon process, and realize the application of real short-process dyeing and finishing process technology

Method used

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  • A fast, short-flow and low-emission dyeing process for rayon cheese
  • A fast, short-flow and low-emission dyeing process for rayon cheese
  • A fast, short-flow and low-emission dyeing process for rayon cheese

Examples

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Effect test

Embodiment 1

[0041] A fast, short-flow and low-emission dyeing process for rayon cheese, comprising the following steps:

[0042] Step 1. Degreasing by dispersion and penetration: Add 1.0g / L dispersant, 2.0g / L dispersant NNO and 1g / L acetic acid, keep warm at 100°C for 10min, and control the pH value at 5.5;

[0043] Step 2. Dyeing: After degreasing, cool down to 60°C for dyeing or directly drain and then add water for dyeing. Specific dyeing operation: add anionic dispersant 0.5g / L, diffusing agent NNO1.0g / L, dye 1%owf, and then Add 5g / L of soda ash, with 0.8g / L of substitute alkali; or add it together with dyes for solid coloring, and keep warm for 20min at 60°C according to different colors or dyes; when dyeing, the inside and outside of the package is dyed The pressure difference of the liquid is controlled at 3.0bar; the pump speed of the main pump cycle is 80% of the rated speed, and the frequency is 47.5HZ;

[0044] Step 3. Post-treatment: The light-colored post-treatment process i...

Embodiment 2

[0046] A fast, short-flow and low-emission dyeing process for rayon cheese, comprising the following steps:

[0047] Step 1. Degreasing by dispersing and penetrating: add dispersant 0.5g / L, diffusing agent NNO 1.0g / L and acetic acid 2.0g / L, keep warm at 80°C for 30min, and control the pH value at 4;

[0048] Step 2. Dyeing: After degreasing, cool down to 40°C for dyeing or directly drain and then add water for dyeing. Dyeing specific operation: add anionic dispersant 2.0g / L, diffusing agent NNO3.0g / L, dye 2%owf, and then Add 30g / L of soda ash, with 2.0g / L of substitute alkali; or add it together with dyes for solid coloring, and keep warm for 90 minutes at a temperature of 90°C according to different colors or dyes; when dyeing, the inside and outside of the package is dyed The pressure difference of the liquid is controlled at 2.0bar; the pump speed of the main pump cycle is 90% of the rated speed, and the frequency is 40HZ;

[0049] Step 3. Post-treatment: The post-treatmen...

Embodiment 3

[0051] A fast, short-flow and low-emission dyeing process for rayon cheese, comprising the following steps:

[0052] Step 1. Degreasing by dispersing and penetrating: Add 2.0g / L dispersant, 3.0g / L diffusing agent NNO and 1.5g / L acetic acid, keep warm at 85°C for 15min, and control the pH value at 4.5;

[0053] Step 2. Dyeing: After degreasing, cool down to 50°C for dyeing or directly drain water and then add water for dyeing. Specific dyeing operation: add anionic dispersant 1.0g / L, diffusing agent NNO2.5g / L, dye 2%owf, and then Add 7g / L soda ash, with 0.5g / L substitute alkali; or add it together with dyes for solid coloring, and keep warm for 85min at 65°C according to different colors or dyes; when dyeing, the inside and outside of the package is dyed The pressure difference of the liquid is controlled at 1.0 bar; the pump speed of the main pump cycle is 95% of the rated speed, and the frequency is 47.5HZ;

[0054] Step 3. Post-treatment: After dark color, the post-treatmen...

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Abstract

The invention discloses a fast, short-flow, low-emission dyeing process for rayon cheese, especially for the fast, short-flow, low-emission dyeing process of various dyes, shortening the entire process time and solving the low efficiency of rayon process , to realize the application of the real short-process dyeing and finishing process technology, the package yarn with a density of 0.35-0.6 g / cm³ and a single yarn weight of 800-1200g is used, including disperse penetration oil removal, dyeing and post-treatment. Steps, compared with the traditional dyeing process, the present invention shortens the process from 10-12 hours to 4-6 hours, shortens the effective process time by 100-200%, solves the problem of high investment in sewage treatment, and fully meets the environmental protection concept of energy saving, ecology, green and nature.

Description

technical field [0001] The invention belongs to the field of rayon dyeing, and in particular relates to a fast, short-flow and low-emission dyeing process for rayon cheese. Background technique [0002] The dyeing process is the time ratio between the overall process efficiency and quality. The overall time of the three major processes of pre-treatment, dyeing, and post-treatment is a process, which is the commonly used process efficiency; how to achieve a short process and always It is the pursuit of dyeing and finishing technicians. Bath ratio is a term used in textile dyeing and finishing, which refers to the ratio of exhaust dyed fabric to dye liquor. Liquor ratio is one of the three elements of the dyeing process. The size of the liquor ratio affects the amount of water used and the amount of dyes and auxiliaries. With the increase of the liquor ratio, the consumption of water, steam, electricity, dyes, and auxiliaries per ton of yarn Increase, how to reasonably contr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/62D06P1/653D06P1/673D06P5/02
CPCD06P1/623D06P1/625D06P1/6533D06P1/6735D06P5/02
Inventor 罗湘春罗业罗凯峰
Owner 杭州众智纺织科技有限责任公司
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