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A Process for Improving the Color Fastness of Cheese or Lyocell Fiber Package Yarn Dyeing

A package yarn, color fastness technology, applied in dyeing, textiles and papermaking, etc., can solve problems such as obstacles, affecting efficiency, slowness, etc., achieve the effect of reducing local unevenness and solving the quality problems of rapid salting-out stains

Active Publication Date: 2022-04-15
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

[0008] The dyeing process of reactive dyes needs to go through dye adsorption and industrial salt dyeing promotion (sodium sulfate) during the dyeing process, of which salt (sodium sulfate) is a very important dyeing promoter, and soda ash is used to fix the color to improve the depth (carbonic acid). Sodium), before dyeing, add disperse leveling aids to protect and improve dyeing uniformity. Since salt is the key substance that affects leveling in terms of dyeing quality, it is necessary to change the leveling effect and The degree of color gain, if necessary, through (heating method, cooling method mode to change the quality of dyeing) process to enhance the quality of the pass rate; after completing the dyeing with industrial salt, add sodium carbonate or soda ash to fix the color, the color fixing soda is also Slowly add in several times (total time 1-2.0h), and also use the method of adding alkali at low temperature and high temperature, and then keep warm for 20-80min according to the corresponding process requirements and dark and light colors. The process takes 8- 12 hours, which seriously affects the efficiency, especially in the process of high-density molding such as package yarn and warp beam dyeing, which has formed technical barriers in the promotion of quality and fabrics

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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  • A Process for Improving the Color Fastness of Cheese or Lyocell Fiber Package Yarn Dyeing
  • A Process for Improving the Color Fastness of Cheese or Lyocell Fiber Package Yarn Dyeing
  • A Process for Improving the Color Fastness of Cheese or Lyocell Fiber Package Yarn Dyeing

Examples

Experimental program
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Effect test

Embodiment 1

[0051] A process for improving the dyeing color fastness of Hisaier or lyocell fiber cheese, specifically comprising the following steps:

[0052] Step 1, pre-processing:

[0053] 1) Dispersing, refining and degreasing: Put the cheese fiber cheese into the main cylinder of the dyeing machine, fill the whole cheese with water, then add 1g / L high emulsifying performance refining agent, 0.5g / L soft water dispersant and 1g / L L hydrogen peroxide, the pH value is controlled at 11, and the first drainage is completed after the temperature is kept at 90°C for 20 minutes;

[0054] 2) Then inject water until the whole cheese is submerged, add 1.2g / L anionic dispersant and 1.2g / L acetic acid in sequence, keep warm at 80°C for 15min, control the pH value at 4, and complete the second drainage;

[0055] 3) Inject water until the whole cheese is submerged, add 0.5g / L anionic leveling agent and 1.0g / L strong dispersant in sequence, keep warm at 80°C for 20 minutes, and complete the third dr...

Embodiment 2

[0061] A process for improving the dyeing color fastness of Hisaier or lyocell fiber cheese, specifically comprising the following steps:

[0062] Step 1, pre-processing:

[0063] 1) Degreasing by dispersing and refining: put the lyocell fiber cheese into the main cylinder of the dyeing machine, fill the whole cheese with water, then add 2g / L high emulsifying performance refining agent, 1.5g / L soft water dispersant and 1.5 g / L hydrogen peroxide, the pH value is controlled at 12, and the first drainage is completed after the temperature is kept at 105°C for 30 minutes;

[0064] 2) Refill water until the whole cheese is submerged, add 2.0g / L anionic dispersant and 2.0g / L acetic acid in sequence, keep warm at 100°C for 8 minutes, control the pH value at 5, and complete the second drainage;

[0065] 3) Inject water until the whole package is submerged, add 1.5g / L anionic leveling agent and 1.5g / L strong dispersant in sequence, keep warm at 100°C for 10 minutes, and complete the t...

Embodiment 3

[0071] A process for improving the dyeing color fastness of Hisaier or lyocell fiber cheese, specifically comprising the following steps:

[0072] Step 1, pre-processing:

[0073] 1) Dispersing, refining and degreasing: Put the cheese fiber cheese into the main tank of the dyeing machine, fill the whole cheese with water, then add 3g / L high emulsifying performance refining agent, 2.0g / L soft water dispersant and 3g / L L hydrogen peroxide, the pH value is controlled at 12.5, and after the temperature is kept at 100°C for 25 minutes, the first drainage is completed;

[0074] 2) Re-inject water until the whole cheese is submerged, add 0.5g / L anionic dispersant and 1g / L acetic acid in sequence, keep warm at 90°C for 12min, control the pH value at 5.5, and complete the second drainage;

[0075] 3) Inject water until the whole cheese is submerged, add 2.0g / L anionic leveling agent and 2.0g / L strong dispersant in sequence, keep warm at 90°C for 15 minutes, and complete the third drai...

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Abstract

The invention discloses a process for improving the dyeing color fastness of cheeses made of Hissel and Lyocell fibers, which belongs to the field of dyeing of Hissel and Lyocell fibers. The specific steps include pretreatment, dyeing, posttreatment, and color fixation. Soft treatment, aiming at the raw material characteristics of Hissel and Lyocell fibers, solves the color fastness problem of dyeing them with salt-free reactive dyes, and further improves the color fastness on the basis of rayon dyeing process with salt-free reactive dyes ; The process technology is simple but not complicated, which is the basis of future process technology derivation; reduces the consumption and pollution of salt, and reduces the worldwide problem of sewage treatment; reduces the labor intensity, fully meets the requirements of green fiber clean production, and solves the problem of The green technology upgrade and concept of national industrial technology also meet the environmental protection supply concept of luxury goods, and realize the new environmental protection breakthrough of green fiber in the true sense under the condition of clean production technology.

Description

technical field [0001] The invention belongs to the field of Hissel and Lyocell fiber dyeing, in particular to a process for improving the color fastness of cheese dyed with Hissel or Lyocell fiber. Background technique [0002] 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 It also increases accordingly. How to reasonably control the bath ratio and reduce the bath ratio is one of the main ways to save energy and reduce emissions. [0003] The color fastness of dyed and finished fibers and fabrics is a term used in textile dyeing and finishing, which refers to the color fastness to staining, washing fastness, soapi...

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): D06P1/44D06P1/38D06P3/66D06P1/96D06P5/02
CPCD06P1/445D06P1/38D06P3/66D06P1/96D06P5/02
Inventor 罗湘春
Owner 杭州众智纺织科技有限责任公司
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