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Cationic modified polyester/polyester one-bath process dyeing technology

A cationic, polyester technology, applied in the field of yarn and fabric dyeing process, can solve the problems of easily damaged products, unstable color, long process flow, etc., and achieve the effect of reducing pollution, shortening dyeing time, and shortening process flow

Inactive Publication Date: 2017-01-04
ZHEJIANG QIAOERTINGTING FASHION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of the two-bath dyeing process are: long process flow, long dyeing time, large water consumption, energy consumption, large amount of sewage discharge, and easy damage to the product, product fluffing and pilling, and unstable color

Method used

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  • Cationic modified polyester/polyester one-bath process dyeing technology
  • Cationic modified polyester/polyester one-bath process dyeing technology
  • Cationic modified polyester/polyester one-bath process dyeing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: yarn dyeing, cationic polyester / conventional polyester doubling

[0020] Raw materials: 70D / 72F conventional polyester and 75D / 72F high-temperature cationic modified polyester are paralleled.

[0021] Color: Cationic Modified Polyester Dark Blue, Regular Polyester Light Blue.

[0022] Same bath dyeing prescription:

[0023]

[0024] Process operation instructions: Put the raw materials to be dyed into the dyeing vat, enter the water to the specified amount, heat up to 25°C, add water-absorbing quick-drying agent, disperse leveling agent, and glacial acetic acid for 2 minutes → add disperse dyes and turn for 3 minutes → add precipitation preventive agent Rotate for 2 minutes → add cationic dye and transfer for 3 minutes → heat at 1°C / min to 78°C for 8 minutes → heat at 0.5°C / min to 98°C → heat at 1.5°C / min to 128°C for 50 minutes and then Cool down to below 80°C and drain→Wash with hot water→Add cationic soaping agent 1g / L for soaping at 70°C for 15 mi...

Embodiment 2

[0026] Example 2: Sports Seamless Vest Garment Dyeing

[0027] Raw materials: 70D / 72F conventional polyester accounted for 35.7%, 75D / 72F cationic modified polyester accounted for 38.3%, 50D / 24F cationic modified polyester accounted for 26%.

[0028] Product: Sports Vest

[0029] Color: dark red, light kenaf, cationic modified polyester dyed light red, conventional polyester deep red.

[0030] Same bath dyeing prescription:

[0031]

[0032] Process operation instructions: Put the raw materials to be dyed into the dyeing vat, enter the water to the specified amount, heat up to 30°C, add water-absorbing quick-drying agent, disperse leveling agent, and glacial acetic acid for 3 minutes → add disperse dyes and turn for 5 minutes → add precipitation preventive agent Rotate for 3 minutes → add cationic dye and transfer for 5 minutes → heat up to 80°C at 1.5°C / min and hold for 11 minutes → heat up to 100°C at 1°C / min → heat up to 130°C at 2°C / min and hold for 55 minutes Cool d...

Embodiment 3

[0034] Embodiment 3: two-color yarn dyeing

[0035] Raw materials: 70D / 72F conventional polyester and 75D / 72F high-temperature cationic modified polyester are paralleled.

[0036] Color: black fluorescent green two-color yarn

[0037] Same bath dyeing prescription:

[0038]

[0039] Process operation instructions: Put the raw materials to be dyed into the dyeing vat, enter the water to the specified amount, heat up to 35°C, add water-absorbing quick-drying agent, disperse leveling agent, and glacial acetic acid for 5 minutes → add disperse dyes and turn for 8 minutes → add precipitation preventive agent Rotate for 5 minutes → add cationic dye and transfer for 8 minutes → heat up to 82°C at 1.5°C / min and hold for 12 minutes → heat up to 102°C at 1°C / min → heat up to 132°C at 2°C / min and hold for 60 minutes Cool down to below 80°C and drain → hot water washing → add conventional soaping agent 1g / L, soda ash 2g / L at 80°C for 15 minutes → add cationic soaping agent 2g / L at 70...

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Abstract

The invention relates to a one-bath dyeing process for yarns and fabrics prepared by blending, doubling and interweaving cationic modified polyester and polyester, and belongs to the technical field of yarn and fabric dyeing processes. The process comprises the following steps: putting yarns or fabrics containing cationic modified polyester or polyester into a dye vat, heating in water, adding a water-absorbing quick-dry agent, a dispersing and leveling agent and glacial acetic acid for uniformly rotating; adding disperse dyes for uniformly rotating, adding an anti-settling agent for uniformly rotating, adding cationic dyes, heating to the temperature of 80+ / -2 DEG C at a speed of 1-1.5 DEG C per minute after uniform rotating, maintaining the temperature for 8-12 minutes, heating to the temperature of 100+ / -2 DEG C at a speed of 0.5-1 DEG C per minute, heating to the temperature of 130+ / -2 DEG C at a speed of 1.5-2 DEG C per minute, maintaining the temperature for 55+ / -5 minutes, cooling to 80 DEG C or below and draining, performing hot washing, soaping, washing and softening. According to the invention, the dyeing time can be reduced, the production efficiency is improved, pollution discharge is reduced, and the dyeing cost is reduced.

Description

technical field [0001] The invention relates to a same-bath dyeing process of cationic modified polyester and polyester blended, doubling and interwoven yarns and fabrics, and belongs to the technical field of yarn and fabric dyeing processes. Background technique [0002] With the promotion and application of new cationic modified polyester raw materials, its fabrics not only have good gloss, air permeability and water absorption, but also have low-temperature dyeability. There are more and more cationic modified polyester and cationic modified polyester blended with other fibers, doubling and interweaving fabrics on the market. In general, the dyeing of cationic modified polyester and polyester blended, paralleled and interwoven yarns and fabrics is dyed by two-bath method, that is, conventional polyester is dyed with disperse dyes, and cationic modified polyester is dyed with cationic dyes. The main problems of the two-bath dyeing process are: long process flow, long dye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/87D06P3/86D06P1/00D06P1/16D06P1/41D06P5/02
CPCD06P3/854D06P1/002D06P1/0032D06P1/0096D06P1/16D06P1/41D06P3/002D06P3/004D06P5/02
Inventor 梁佳钧
Owner ZHEJIANG QIAOERTINGTING FASHION
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