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Dyeing method of bio-based nylon 56 fabric disperse dye

A bio-based nylon and disperse dye technology, which is applied in the field of textile printing and dyeing, can solve the problems of less research on disperse dye dyeing of bio-based nylon fabrics, no way to mass-produce, and high cost of acid dyes, so as to promote the reduction cleaning process and prevent discoloration. Flowers, high color fastness effect

Pending Publication Date: 2022-04-19
上海普弗门化工新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of acid dyes is high, and the technical community has been researching how to use disperse dyes to dye nylon fabrics, but with little success. So far, there is no way to do mass production
Although there are many patents on "continuous hot-melt dyeing technology of polyester fabrics", there are few researches on the dyeing of bio-based nylon fabrics with disperse dyes

Method used

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  • Dyeing method of bio-based nylon 56 fabric disperse dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Bio-based nylon 56 fabric disperse dyeing method, comprises the following steps:

[0048] 1) The bio-based nylon 56 fabric is treated with a stabilizer in the pre-treatment whitening process, which protects the nylon material during the heat-fixing process, making the nylon material not easily oxidized, resulting in dyeing quality problems;

[0049] 2) High-temperature and high-pressure dyeing of disperse dyes: including dyeing process and reduction cleaning process. The dyeing process can not only make the polyester component obtain deeper dyeing, but also reduce the dyeing of the spandex component by the dye; the reduction cleaning process is effective Clean floating color, and avoid the use of traditional hydrosulfite and caustic soda, thereby reducing the steps of acid neutralization.

[0050] Dyeing: Immerse the bio-based nylon 56 fabric to be dyed in the dyeing solution, the dyeing bath ratio is 1:3, heat up to 115°C at a speed of 2~3°C / min, and keep it warm for 60 ...

Embodiment 2

[0053] Bio-based nylon 56 fabric disperse dyeing method, comprises the following steps:

[0054] 1) The bio-based nylon 56 fabric is treated with a stabilizer in the pre-treatment whitening process, which protects the nylon material during the heat-fixing process, making the nylon material not easily oxidized, resulting in dyeing quality problems;

[0055] 2) Hot-melt dyeing with disperse dyes: including three steps of dyeing, pre-baking and hot-melt color fixing:

[0056] Ⅰ) Dyeing: Dyeing: disperse dyes are evenly dyed on the bio-based nylon white cloth through a hot-melt dyeing machine: uniform padding, the weight of the fabric is 150 grams per square meter, and the excess dyeing rate is 65 %; Pad dyeing is carried out at room temperature, in the dyeing liquor: disperse dye 20% owf; dispersant 1.5g / L; adjust the pH to 5~7 with acetic acid, then add a pH stabilizer, the dosage is 1g / L; Agent (sodium alginate) 3%; dyeing speed 50m / min.

[0057] Ⅱ) Pre-baking: focus on anti-...

Embodiment 4

[0067] Bio-based nylon 56 fabric disperse dyeing method, comprises the following steps:

[0068] 1) The fabric made of high stability bio-based nylon fiber has good thermal oxidation resistance, and no stabilizer is used in the whitening process;

[0069] 2) Hot-melt dyeing with disperse dyes: including three steps of dyeing, pre-baking and hot-melt color fixing:

[0070] Ⅰ) Dyeing: the disperse dyes are evenly dyed on the bio-based nylon white cloth by the disperse dyeing machine. Disperse dyes are applied to bio-based nylon fabrics. Dyeing is carried out at room temperature. In the dyeing solution: disperse dye 30% owf; dispersant 1.5g / L; use acetic acid to adjust the pH to 5~7, then add a pH stabilizer, the dosage is 1g / L; anti-swimming agent ( Sodium alginate) 3%; dyeing speed 60m / min.

[0071] Ⅱ) Pre-baking: focus on anti-dye migration. After the fabric is colored, it is dried by infrared rays at a drying temperature of 80°C.

[0072] Ⅲ) Hot-melt color fixing and set...

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Abstract

The invention relates to the technical field of textile, and discloses an anhydrous printing method for bio-based nylon 56 fabric, which comprises the following steps: 1) treating the bio-based nylon 56 fabric by using a stabilizer to obtain gray fabric in a pre-treatment scouring process; or the fabric made of the high-stability bio-based nylon fiber is directly used as the gray fabric; and 2) thermal transfer printing or hot melting direct printing. The printing process is simple to operate, basically free of wastewater discharge, energy-saving and emission-reducing, and meets the environmental protection requirement; according to the method, the nylon 56 grey cloth of the common biotechnology is subjected to stabilizer treatment before printing, so that the nylon fabric is protected to a certain extent, and the nylon fabric is prevented from being damaged due to overhigh temperature in the heat transfer printing process or the high-temperature ageing and color fixing process of direct printing. The method disclosed by the invention is particularly suitable for fabrics made of high-stability bio-based nylon fibers, and the nylon fabrics prepared by the method do not need to be treated by adopting a stabilizer, and have the advantages of high printed certified product rate, good dyeing degree, high color fastness and good quality.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, in particular to a method for dyeing bio-based nylon 56 fabrics with disperse dyes. Background technique [0002] At present, nylon fabrics in the world are mostly dyed with acid dyes in intermittent dyeing vats, and then washed with water for color development and finalized. The cost of acid dyes is high, and the technical community has been studying how to use disperse dyes to dye nylon fabrics, but with little success. So far, there is no way to do mass production. Although there are many patents on "continuous hot-melt dyeing technology of polyester fabrics", there are few studies on the dyeing of bio-based nylon fabrics with disperse dyes. Contents of the invention [0003] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a method for dyeing bio-based nylon 56 fabrics with disperse dyes. [0004] To achiev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/44D06P1/48D06P3/26D06P5/04D06P5/08
CPCD06P1/16D06P1/445D06P1/48D06P3/26D06P5/04D06P5/08
Inventor 肖文华
Owner 上海普弗门化工新材料科技有限公司
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