Dyeing technique for polyester cotton or polyester viscose/chinlon/spandex multi-component fabric by one-bath two-step process

A multi-component, two-step technology, applied in dyeing, textiles and papermaking, etc., can solve problems such as poor control of vat difference, long dyeing time, unstable color, etc., to reduce sewage discharge, reduce dyeing time, The effect of shortening the dyeing time

Inactive Publication Date: 2016-08-31
ZHEJIANG QIAOERTINGTING FASHION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of the existing process are: the process is long, usually 12-16 steps, the dyeing time is long, generally 16-20 hours, and it is easy to damage the prod

Method used

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  • Dyeing technique for polyester cotton or polyester viscose/chinlon/spandex multi-component fabric by one-bath two-step process
  • Dyeing technique for polyester cotton or polyester viscose/chinlon/spandex multi-component fabric by one-bath two-step process
  • Dyeing technique for polyester cotton or polyester viscose/chinlon/spandex multi-component fabric by one-bath two-step process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: dyeing of polyester / cotton / brocade seamless briefs

[0019] Raw materials: 66.7% 35 / 65 40-count polyester cotton, 2.1% 60-count cotton yarn (for bottom crotch pile), 31.2% 20 / 30-24F nylon core-spun yarn.

[0020] Product: Women's Seamless Briefs

[0021] Color dark brown.

[0022] Dyeing prescription: (Oxygen bleaching before dyeing)

[0023]

[0024]

[0025] Bath ratio: 1:15

[0026] Process operation instructions: Put the product to be dyed into the dyeing vat, enter the specified water volume and heat up to 25°C, add sodium starch powder, high-temperature leveling agent in turn, and continue to run for 5 minutes, then add reactive dyes, neutral dyes and disperse dyes respectively After the dye runs for 5 minutes, raise the temperature to 62°C at 1°C / min, then add soda ash, keep warm for 50 minutes, then neutralize the soda ash with glacial acetic acid, then slowly adjust the pH value to 5.5 with glacial acetic acid, and turn it evenly at 1.5°C...

Embodiment 2

[0031] Example 2: Tencel / polyester seamless sports underwear dyeing

[0032] Raw materials: 69% 50 / 50 Tencel / polyester blended yarn, 31% 20 / 40-36F nylon corespun yarn.

[0033] Products: sports vest, short sleeves

[0034] Color: dark blue.

[0035] Dyeing prescription: (refining and degreasing before dyeing)

[0036]

[0037] Bath ratio: 1:15

[0038] Process operation instructions: Put the product to be dyed into the dyeing vat, enter the water to the specified amount and heat up to 30°C, add sodium starch powder, high-temperature leveling agent in turn, and continue to run for 7 minutes, then add reactive dyes, disperse dyes and neutral dyes After running for 7 minutes, raise the temperature to 60°C at 0.7°C / min, then add soda ash and keep it warm for 30 minutes, then neutralize the soda ash with glacial acetic acid, then slowly adjust the pH value to 6.5 with glacial acetic acid, and then turn it evenly and set the temperature at 1°C / min min Raise the temperature to...

Embodiment 3

[0043] Example 3: Momodai / Cotton / Polyester Leggings

[0044] Raw materials: 68% modal / cotton / polyester (modal:cotton:polyester blend ratio 30:30:40), 32% 20 / 40-36F nylon core-spun yarn.

[0045] Product: Seamless Primer

[0046] Color: skin tone.

[0047] Dyeing prescription: (refining oxygen bleaching before dyeing)

[0048]

[0049] Bath ratio: 1:15

[0050] Process operation instructions: Put the product to be dyed into the dyeing vat, enter the specified water volume and heat up to 35°C, add sodium starch powder, high-temperature leveling agent in turn, and continue to run for 10 minutes, then add reactive dyes, disperse dyes, and weak acid dyes After running for 10 minutes, raise the temperature to 58°C at 0.5°C / min, then add soda ash and keep it warm for 40 minutes, then neutralize the soda ash with glacial acetic acid, then slowly adjust the pH value to 6 with glacial acetic acid, and then turn it evenly at 1.2°C / min Min raise the temperature to 128°C and keep it w...

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Abstract

The invention relates to a dyeing technique for polyester cotton or polyester viscose/chinlon/spandex multi-component fabric by a one-bath two-step process and belongs to the technical field of textile dyeing process. The dyeing technical includes the following process steps: putting the to-be-dyed polyester cotton or polyester viscose/chinlon/spandex multi-component fabric into a dye vat, feeding water to the specified water quantity, increasing the temperature to 30+/-5 DEG C, sequentially adding salt or anhydrous sodium sulphate and levelling agent prior to continuing operation for 5-10 minutes, then adding reactive dye, disperse dye, weak acid dye or neutral dye for operation for 5-10 minutes prior to increasing the temperature to 60+/-2 DEG C at the rate of 0.5-1 DEG C/min, then adding sodium carbonate, keeping at the temperature for 30-50 minutes prior to neutralizing the sodium carbonate with dyeing acid, slowly regulating the pH value to 5.5-6.5, uniformly rotating prior to increasing the temperature to 130+/-2 DEG C at the rate of 1-1.5 DEG C/min, keeping at the temperature for 40-60 minutes, and then cooling and discharging water prior to aftertreatment. By the technique, the process of the dyeing technique can be shortened effectively, time for dyeing is reduced, production efficiency is improved, steam and water consumption is reduced, pollution discharge is reduced, and dyeing cost is lowered.

Description

technical field [0001] The invention relates to a one-bath two-step dyeing process for polyester-cotton or polyester-viscose / nylon / spandex multi-component fabrics, belonging to the technical field of textile dyeing processes. Background technique [0002] Existing polyester-cotton or polyester-viscose, the dyeing of the fabric interwoven with nylon and spandex is mainly dyed with the three-bath method. According to the structure of the fabric, there are generally two dyeing processes: one is to dye cotton or viscose with reactive dyes, then over-dye polyester with disperse dyes, and then over-dye nylon with weak acid dyes or neutral dyes; The other is to dye polyester with disperse dyes first, then over-dye cotton or viscose with reactive dyes, and then over-dye nylon with weak acid dyes or neutral dyes. The main problems of the existing process are: the process is long, usually 12-16 steps, the dyeing time is long, generally 16-20 hours, and it is easy to damage the produc...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/16D06P1/39D06P1/673D06P3/872D06P5/02
CPCD06P1/38D06P1/16D06P1/39D06P1/6735D06P3/8242D06P3/8252D06P5/02
Inventor 梁佳钧范艳林何欣夏金晶
Owner ZHEJIANG QIAOERTINGTING FASHION
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