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Dyeing method of polyester-cotton fiber cheese with vat dyes

A polyester-cotton fiber and dyeing method technology, which is applied in dyeing methods, textiles and papermaking, can solve the problems of high production cost and uncontrollable dyeing effect, and achieve good effect, high color fastness and high efficiency

Active Publication Date: 2016-08-31
ZHEJIANG SAINTYEAR TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for dyeing polyester-cotton fiber cheese with vat dyes, which mainly solves the existing dyeing method in the prior art, which simply relies on adding some dyeing agents to control the dyeing effect. Changes or auxiliaries to control technical issues such as dyeing effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: the cheese vat dyeing method of the polyester-cotton fiber of this example, its step is:

[0012] The specification of the polyester-cotton fiber yarn is 80S / 2, the quantity is 18 bobbins, and the dyed luster is khaki bobbin yarn.

[0013] Yarn loosening: Firstly, loosen the 80S / 2 polyester-cotton fiber yarn purchased from the market on the SSM DP1-W yarn loosening machine, and loosen the polyester-cotton fiber yarn by digital winding. The density of the package is 0.36 g / m 3 , the weight of a single bobbin is 800g;

[0014] Pre-treatment: first install the loose yarn on the creel, place the creel in the dyeing vat, close the lid of the dyeing vat, call out the production program on the process card, and set the liquor ratio to 1 : 10, that is, 1kg of yarn needs to be equipped with 10kg of water. First, inject 70% of the water into the dyeing vat, and add caustic soda to the attached vat at room temperature. l, add 5.5g / l hydrogen peroxide at the same t...

Embodiment 2

[0017] Embodiment 2: the cheese vat dyeing method of the polyester-cotton fiber of this example, its step is:

[0018] The specification of the polyester-cotton fiber yarn is 30S, the quantity is 70 bobbins, and the dyeing color is navy blue bobbin yarn.

[0019] Yarn loosening: First, loosen the 30S raw polyester-cotton yarn bobbin purchased from the market on the SSM DP1-W yarn loosening machine, and loosen the raw polyester-cotton yarn by digital winding. The density of the bobbin is 0.37 g / m 3 , the weight of a single bobbin is 1300g;

[0020] Pre-treatment: first install the loose yarn on the creel, place the creel in the dyeing vat, close the lid of the dyeing vat, call out the production program on the process card, and set the liquor ratio to 1 : 8, that is, 1kg of yarn needs to be equipped with 8kg of water, first inject 70% of the water into the dyeing vat, add caustic soda to the attached vat at room temperature, the addition amount is 3.0g / l, high-efficiency refin...

Embodiment 3

[0023] Embodiment 3: the cheese vat dyeing method of the polyester-cotton fiber of this example, its step is:

[0024] The specification of polyester-cotton fiber yarn is 120S / 2, the quantity is 12 bobbins, and the dyeing color is blue-gray bobbin yarn.

[0025]Yarn loosening: First, loosen the 30S raw polyester-cotton yarn bobbin purchased from the market on the SSM DP1-W yarn loosening machine, and loosen the raw polyester-cotton yarn by digital winding. The density of the bobbin is 0.34g / m 3 , the weight of a single bobbin is 800g;

[0026] Pre-treatment: first install the loose yarn on the creel, place the creel in the dyeing vat, close the lid of the dyeing vat, call out the production program on the process card, and set the liquor ratio to 1 : 10, that is, 1kg of yarn needs to be equipped with 10kg of water. First, inject 70% of the water into the dyeing vat, and add caustic soda to the attached vat at room temperature. l, add 4.0g / l hydrogen peroxide at the same time...

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Abstract

The invention relates to a vat dyes dyeing method of polyester cotton fiber cheese, in particular relates to a dyeing method of the blend fiber cheese, and especially relates to a three-in-one dyeing method of blend fiber cheese, aiming at solving the problems that dyeing time is long, energy consumption is high, productivity is lower, more sewage is discharged, etc in the traditional dyeing method of the blend fiber cheese. The method comprises the steps of loosening yarns, dyeing and carrying out postprocessing, and is characterized in that in the step of loosening yarns, a digital winding way is adopted, and drum loosing is carried out on the blend fiber yarn; the dyeing comprises the steps of adding disperse dye, mixed alkali and an oxidizing agent at the room temperature; heating and carrying out heat preservation twice, and directly cooling the mixture; then, adding active dye and anhydrous sodium sulphate into the mixture, carrying out heat preservation, and directly discharging residual liquid; putting the product into water, heating and carrying out heat preservation, and then discharging; adding a certain weight of soaping agent for soaping, carrying out heat preservation, and then discharging; adding clear water and washing one time; softening and discharging; carrying out dehydration; drying by a variable frequency dryer; separating a drum for warping, or spooling to obtain the finished yarn product. After the three-in-one dyeing method is adopted, the dyeing process of the blend fiber cheese is greatly reduced, and the dyeing time and the dyeing process are greatly shortened.

Description

technical field [0001] The invention relates to a polyester-cotton fiber cheese dyeing method, in particular to a polyester-cotton fiber cheese dyeing method with vat dyes. Background technique [0002] Cotton fabric is a natural cellulose fiber, which is widely loved by consumers. However, in the dyeing industry, cotton fibers and their blended fibers dyed with reactive dyes are subject to water resources and other energy constraints and delivery challenges, and due to the structural characteristics of reactive dyes themselves, making The color fastness of some reactive dyed fabrics is relatively poor, which limits the use of some cotton-dyed fabrics. Due to their particularity, vat dyes have advantages in some aspects compared with reactive dyes, especially in terms of color fastness. , has been loved and accepted by more and more consumers, especially in the European and American yarn-dyed fabric markets, more and more high-grade yarn-dyed fabrics are dyed with vat dyes. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/22D06P1/00D06P3/85D06P1/96D06P5/02
Inventor 吴良华余先贵
Owner ZHEJIANG SAINTYEAR TEXTILE
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