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Cotton knitted fabric active dye refining and dyeing one-bath method

A technology of reactive dyes and cotton knitted fabrics, which is applied in dyeing, textiles and papermaking, can solve the problems of poor scouring effect, incomplete removal of impurities, and decrease in vividness, and achieves easy production, reduced washing steps, and simple operation Effect

Inactive Publication Date: 2013-07-24
绍兴董氏纺织印染技术开发中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A very important step in the pre-treatment process is scouring, the scouring effect is poor, and the impurity removal is not thorough, which will have a negative impact on the dyeing effect, such as the problem of color flowering and the decrease of vividness

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

[0032] dark stain

[0033] (1) Main process:

[0034] Dyeing and dyeing in the same bath scouring agent+stabilizer+yuanming powder or salt+reactive dye+fixing alkali (added step by step)→medium temperature dyeing and scouring→soaping→water washing→fixing→drying.

[0035] (2) The basic formula for practicing and dyeing in the same bath:

[0036] K-type dye dosage (to fabric weight) 8% L,

[0037] Yuanming powder 100 g / L,

[0038] Color-fixing alkali 4 g / L,

[0039] Scouring agent M-191 1 g / L,

[0040] Protective agent HS-310B 0.5 g / L,

[0041] Penetrant 2g / L,

[0042] Liquor ratio 1:15.

[0043] (3) Dyeing process

[0044] At room temperature, add enough water and run the fabric to fully wet it. Add scouring agent for scouring and dyeing in the same bath, dyes, salt or salt, and dye protection agent respectively, run the fabric for 10-15 minutes, and then add color-fixing alkali in batches. After that, start heating, increase the temperature from room temperature to 6...

Embodiment 2

[0052] Neutral dyeing

[0053] (1) Main process:

[0054] Dyeing and dyeing in the same bath scouring agent+stabilizer+yuanming powder or salt+reactive dye+fixing alkali (add step by step)→high temperature dyeing and scouring→soaping→water washing→fixing→drying.

[0055] (2) The basic formula for scouring and dyeing in the same bath:

[0056] M type dye dosage (to fabric weight) 3%,

[0057] Yuanming powder or table salt 50 g / L,

[0058] Color-fixing alkali 3 g / L,

[0059] Scouring agent DE-301 1.5 g / L,

[0060] Stabilizer 310 1 g / L,

[0061] Penetrant 2 g / L,

[0062] Liquor ratio 1:15.

[0063] (3) Dyeing process:

[0064] At room temperature, add enough water and run the fabric to fully wet it. Add scouring agent for scouring and dyeing in the same bath, dyes, salt or salt, and dye protection agent respectively, run the fabric for 10-15 minutes, and then add color-fixing alkali in batches. After that, start to heat up from room temperature to 80°C at a speed of 1°C...

Embodiment 3

[0072] light color dyeing

[0073] (1) Main process:

[0074] Dyeing and dyeing in the same bath scouring agent+stabilizer+yuanming powder or salt+reactive dye+fixing alkali (add step by step)→high temperature dyeing and scouring→soaping→water washing→fixing→drying.

[0075] (2) The basic formula for scouring and dyeing in the same bath:

[0076] KN type dye dosage (to fabric weight) 1%,

[0077] Salt 30 g / L,

[0078] Color-fixing alkali 2.5 g / L,

[0079] Scouring agent DE-301 2 g / L,

[0080] Stabilizer 310 1.5 g / L,

[0081] Penetrant 2 g / L,

[0082] Liquor ratio 1:15.

[0083] (3) Dyeing process:

[0084] At room temperature, add enough water and run the fabric to fully wet it. Add scouring agent for scouring and dyeing in the same bath, dyes, salt or salt, and dye protection agent respectively, run the fabric for 10-15 minutes, and then add color-fixing alkali in batches. Then start heating, from room temperature to 80°C at a rate of 1°C / min, dye for 30 minutes, an...

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 relates to a cotton knitted fabric active dye refining and dyeing one-bath method. According to the present invention, based on the existing new refining and dyeing one-bath technology, a pre-alkali addition method and a stabilizer are adopted, such that contradiction between refining and dyeing is effectively solved, refining and dyeing one-bath is achieved, a color fixation rate is not reduced or less reduced, and light, medium and dark fabrics can be dyed; the method has characteristics of process shortening, water, steam, electricity and coal saving, wastewater emission reduction, and COD emission reduction; the method further has characteristics of simple operation and easy production; the dyeing process comprises: adding a refining and dyeing one-bath refining agent, a stabilizer, mirabilitum dehydratum or gravy salt, an active dye, and a color fixation alkali, carrying out medium temperature (60-70 DEG C) dyeing, high temperature (80-90 DEG C) dyeing and refining (95-98 DEG C), soaping, carrying out water washing, carrying out color fixation, and drying; and the dyeing formula respectively comprises: the dye use amounts(a weight ratio of K type (monochlorotriazine), M type, KE type, KE type (dual active group) to the fabric) / mirabilitum dehydratum or gravy salt / color fixation substitute alkali / refining agent / penetrant / active dye stabilizer.

Description

technical field [0001] The invention relates to a method for scouring and dyeing cotton knitted fabrics in one bath with reactive dyes. Background technique [0002] Reactive dyes have many advantages such as excellent color fastness, convenient dyeing, bright color, and complete color spectrum. They are the most important dyes for cotton knitted fabrics and yarns. Dyes can be divided into low-temperature reactive dyes, medium-temperature reactive dyes and high-temperature reactive dyes according to the dyeing temperature. Temperature has a great influence on the dye reaction rate, the higher the temperature, the faster the reaction rate. Although both the fixation rate and the hydrolysis rate increased correspondingly, the higher the temperature, the greater the increase in the hydrolysis rate. From the perspective of color fixation, regardless of low temperature, medium temperature or high temperature resistant reactive dyes, alkali is required for color fixation, and th...

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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IPC IPC(8): D06P1/38D06P1/44D06P1/673D06P3/66
Inventor 董建圆
Owner 绍兴董氏纺织印染技术开发中心
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