Dyeing and fishing method for brocade/viscose fiber/spandex knitting fabric

A technology of knitted fabrics and spandex, which is applied in dyeing, textiles and papermaking, etc. It can solve the problems of high water consumption, fiber wax loss, and increased dye consumption, so as to reduce water consumption and sewage discharge, and reduce treatment temperature. The effect of saving processing time

Inactive Publication Date: 2013-09-18
杭州天宇印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) High temperature and high energy consumption;
[0007] (2) After scouring, processes such as draining, hot washing, pickling, deoxidation, cooling and cold water washing are required to remove pre-treatment additives, prevent the reduction of dyeing color rate, and increase the amount of dye. There are many processes and processing time Long, large water consumption, large sewage discharge;
[0008] (3) Repeated use of a large amount of alkali agent will cause a lot of wax loss in the fiber, making the fabric feel rough, and often produce wear marks or fine wrinkles during the dyeing process, which are not easy to eliminate even if anti-wrinkle agent is added

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Choose brocade / rayon / spandex knitted Roman fabric for dyeing:

[0041] (1) Open-width pre-shrinking: open-width pre-shrinking with a steam shrinker;

[0042] (2) One bath of scouring and dyeing: add 2g / l refined degreasing agent M-1109ET (Mega Chemicals), 2g / l soda ash aqueous solution to the dyeing vat, and after treating the knitted fabric at 70°C for 15 minutes, add reactive dye RRN blue 0.1% , 3BS red 0.15%, 3RS yellow 0.4%, lower the temperature to 60°C, add 30g / l sodium bicarbonate, after active dyeing for 30min, add 15g / l soda ash to fix the color, the total dyeing time is 70min;

[0043] (3) Low-temperature neutralization and soaping: Use 2g / l acidic low-temperature soaping agent HLB-8 (Manjianghong Chemical Industry), soaping at 60°C for 15 minutes;

[0044] (4) Acid dyeing: use a high temperature and high pressure overflow dyeing machine for dyeing, the dyeing solution is a mixed aqueous solution of acid dyes MFN blue 0.021%, SB bordeaux 0.012%, N3R0.046%, 2g...

Embodiment 2

[0050] Choose brocade / rayon / spandex knitted Roman fabric for dyeing:

[0051] (1) Open-width pre-shrinking: open-width pre-shrinking with a steam shrinker;

[0052] (2) One bath of scouring and dyeing: Add 2g / l refined degreasing agent M-1109ET (Megao Chemicals) and 2g / l soda ash aqueous solution to the dye vat, and after treating the knitted fabric at 70°C for 15 minutes, add reactive dye RRN blue 0.13% , 3BS red 1.5%, 3RS yellow 2.3%, lower the temperature to 60°C, add 50g / l sodium bicarbonate, after active dyeing for 30 minutes, add 25g / l soda ash to fix the color, and the total dyeing time is 70 minutes;

[0053](3) Low-temperature neutralization and soaping: Use 2g / l acidic low-temperature soaping agent HLB-8 (Manjianghong Chemical Industry), soaping at 60°C for 15 minutes;

[0054] (4) Acid dyeing: use a high temperature and high pressure overflow dyeing machine for dyeing, the dyeing solution is a mixed aqueous solution of acid dyes MFN blue 0.031%, SB bordeaux 0.16%, ...

Embodiment 3

[0060] Choose brocade / rayon / spandex knitted Roman fabric for dyeing:

[0061] (1) Open-width pre-shrinking: open-width pre-shrinking with a steam shrinker;

[0062] (2) One bath of scouring and dyeing: add 2g / l refined degreasing agent M-1109ET (Megao Chemicals), 2g / l soda ash aqueous solution to the dyeing vat, and after treating the knitted fabric at 70°C for 15 minutes, add reactive dye RRN blue 1.35% , 3BS red 1.7%, 3RS yellow 0.4%, cool down to 60°C, add 50g / l sodium bicarbonate, after active dyeing for 30 minutes, add 25g / l soda ash to fix the color, the total dyeing time is 70 minutes;

[0063] (3) Low-temperature neutralization and soaping: Use 2g / l acidic low-temperature soaping agent HLB-8 (Manjianghong Chemical Industry), soaping at 60°C for 15 minutes;

[0064] (4) Acid dyeing: use a high temperature and high pressure overflow dyeing machine for dyeing, the dyeing solution is a mixed aqueous solution of acid dyes MFN blue 0.38%, ABSN red 0.19%, N3R 0.06%, 2g / L ace...

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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PUM

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Abstract

The present invention discloses a dyeing and fishing method for brocade / viscose fiber / spandex knitting fabric. The method comprises processes of open-width pre-shrinking, scouring and dyeing in one bath, low temperature neutralizing and soaping, acid dyeing, soaping, drying and softening finishing. The open-width pre-shrinking process is performed by adopting a steaming shrinking machine. The scouring and dyeing in one bath process comprises: adding 1-2 g / l of a refined degreasing agent, and 2-3 g / l of an aqueous solution of soda to a dye vat, treating for 15-20 minutes at a temperature of 60-80 DEG C, then adding an active dye, 25-70 g / l of sodium sulfate, and 20g-25 g / l of soda, dyeing for 50-70 minutes at the temperature of 60-65 DEG C. The dyeing and fishing method for the brocade / viscose fiber / spandex knitting fabric has characteristics of simple operation, treatment time saving and low energy consumption. With the method of the present invention, the amount of the sewage discharge can be effectively reduced, and the prepared finished product has good hand feeling and full color.

Description

technical field [0001] The invention relates to a dyeing and finishing method of knitted fabrics, in particular to a dyeing and finishing method of nylon / rayon / spandex knitted fabrics. Background technique [0002] The entire dyeing and finishing process of the printing and dyeing industry consumes a lot of water and produces a large amount of dyeing and finishing wastewater. The treatment of these wastewater is the main environmental problem currently facing the printing and dyeing industry. The demand for environmental protection and the lack of water resources have made energy saving and emission reduction an important goal of process improvement in the printing and dyeing industry. [0003] The dyeing and finishing methods of nylon / rayon / spandex knitted fabrics generally include pretreatment, reactive dyeing, low temperature neutralization soaping, acid dyeing, soaping and drying processes. [0004] Among them, the conventional process of pretreatment is high-temperatur...

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): D06P1/39D06P1/38D06P1/673D06P3/87D06M15/643
Inventor 应江孙张水
Owner 杭州天宇印染有限公司
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