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A kind of dyeing method of polyamide-cotton knitted fabric

A dyeing method and a technology for knitted fabrics, which are applied in the dyeing field of nylon-cotton knitted fabrics, can solve problems such as poor color reproducibility, low production efficiency, and complicated technological processes, so as to reduce dyeing costs, reduce water, electricity, and energy consumption, and improve Effect of Dyeing Efficiency

Active Publication Date: 2022-03-08
佛山市顺德彩辉纺织集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Poor color reproducibility after dyeing;
[0006] (2) The technological process is relatively complicated and the dyeing time is long, which leads to low production efficiency;
[0007] (3) High energy consumption increases production cost

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 kind of dyeing method of polyamide-cotton knitted fabric
  • A kind of dyeing method of polyamide-cotton knitted fabric
  • A kind of dyeing method of polyamide-cotton knitted fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Nylon cotton knitted fabric: 80S / 1 modal + 40D / 12F nylon semi-gloss filament + 30D spandex double-sided (58% modal 35% nylon 7% spandex), weight 185g / ㎡, width 150cm;

[0042] Equipment: Lixin ECO-38;

[0043] Dyeing recipe:

[0044]

[0045] Bath ratio: 1:8

[0046] Such as image 3 , after the pre-treatment, put the polyamide-cotton knitted loose cloth into the Fong’s ECO-38 dyeing machine, raise the temperature to 40°C, add leveling agent 723, and Yuanming powder, and dilute the dye in the auxiliary vat by 1 / 2-1 / 3 After mixing evenly, make a dye solution, pump it into the main vat in a quantitative manner of 70% according to the Dosing curve. , keep warm for 30min, then cool down to 60℃ at 0.8℃ / min, run for 10min, add soda ash (inject 1 / 3 according to the Dosing curve at 50% quantitative mode for the first time, and the injection time is 20min, the second time according to the Dosing curve at 50% % Quantitative way to inject 2 / 3, the injection time is 20min), ...

Embodiment 2

[0048] Nylon cotton knitted fabric: 80S / 1 modal + 40D / 12F nylon semi-gloss filament + 30D spandex double-sided (58% modal 35% nylon 7% spandex), weight 185g / ㎡, width 150cm;

[0049] Equipment: Lixin ECO-38;

[0050] Dyeing recipe:

[0051]

[0052] Bath ratio: 1:6

[0053] After the pretreatment, put the polyamide-cotton knitted fabric loose cloth into the Fong’s ECO-38 dyeing machine, raise the temperature to 40°C, add leveling agent 723 and sodium sulfate, and dilute the dye in the auxiliary vat by 1 / 2-1 / 3 according to the above formula After mixing evenly, make a dye solution, pump it into the master vat in a quantitative manner of 70% according to the Dosing curve. Insulate for 30 minutes, then cool down to 58°C at 0.8°C / min, run for 10 minutes, add soda ash (the first time according to the Dosing curve, inject 1 / 3 in a quantitative manner of 50%, the injection time is 20min, and the second time according to the Dosing curve at 50% Inject 2 / 3 in a quantitative way, t...

Embodiment 3

[0055] Nylon cotton knitted fabric: 80S / 1 modal + 40D / 12F nylon semi-gloss filament + 30D spandex double-sided (58% modal 35% nylon 7% spandex), weight 185g / ㎡, width 150cm;

[0056] Equipment: Lixin ECO-38;

[0057] Dyeing recipe:

[0058]

[0059]

[0060] Bath ratio: 1:8

[0061] After the pretreatment, put the polyamide-cotton knitted fabric loose cloth into the Fong’s ECO-38 dyeing machine, raise the temperature to 40°C, add leveling agent 723 and sodium sulfate, and dilute the dye in the auxiliary vat by 1 / 2-1 / 3 according to the above formula After mixing evenly, make a dye solution, pump it into the main vat in a 70% quantitative manner according to the Dosing curve. Insulate for 30 minutes, then cool down to 60°C at 0.8°C / min, run for 10 minutes, add soda ash (the first time according to the Dosing curve, inject 1 / 3 in a quantitative manner of 50%, the injection time is 20min, and the second time according to the Dosing curve at 50% Inject 2 / 3 in a quantitative...

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 invention discloses a method for dyeing nylon-cotton knitted fabrics, which comprises the step of dyeing nylon-cotton fabrics in the same bath: adding the pretreated nylon-cotton knitted fabrics into a dyeing machine, adding leveling agent, sodium sulfate and The working solution made of reactive dyes is heated and dyed, then cooled to 58-62°C, and soda ash is added in stages for coloring: first add part of soda ash, and then add the rest of soda ash; among them, the mass ratio of part of soda ash to the rest of soda ash Not more than 1 / 3. The present invention is aimed at nylon-cotton knitted fabrics, and the adding sequence of soda ash is designed after heating up dyeing, and soda ash is added twice, nylon-cotton fiber can be dyed in one bath, and can solve the problem of dyeing in the conventional two-bath and two-step method. The phenomenon of poor color reproducibility can effectively reduce the appearance of color stains and color flowers, and improve the first pass rate of color; and one-bath dyeing can shorten the dyeing cycle, improve dyeing efficiency, reduce the consumption of water, electricity and energy, thereby reducing dyeing costs.

Description

technical field [0001] The invention relates to the technical field of textile dyeing, in particular to a method for dyeing nylon-cotton knitted fabrics. Background technique [0002] Nylon-cotton knitted fabric has the excellent properties of two kinds of fibers, nylon and cotton, and is currently a popular clothing fabric, widely used. Due to the difference in the chemical structure of nylon fiber and cotton fiber, the requirements for dyeing process and dye auxiliaries are quite different during dyeing, and the dyeing process has its own particularity. [0003] At present, in the traditional dyeing and finishing process, the dyeing method of nylon-cotton knitted fabrics is mainly an active acidic two-bath two-step method (refer to figure 1 ), that is, after the nylon-cotton knitted fabric is soaked, washed, neutralized, and deoxidized, the cotton fiber is first dyed with reactive dyes, after post-treatment and water washing, the nylon fiber is dyed, and finally the color...

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): D06P1/38D06P3/85D06P1/673D06P1/00
Inventor 曹志强
Owner 佛山市顺德彩辉纺织集团有限公司
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