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Low-bath-ratio cheese viscose fiber dyeing method

A technology of viscose fiber and dyeing method, which is applied in the textile field, and can solve problems such as insufficient alkali treatment time, uneven dyeing of dye liquor, poor inner and outer layers of cheese, etc., so as to prolong the time of fixing color and alkali addition, and increase dye diffusion performance and reduce the difference between inner and outer layers

Inactive Publication Date: 2019-03-19
桐乡市新达丝绸炼染股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Viscose fiber package dyeing is usually dyed with a large bath ratio and heating method. Viscose fiber is mainly viscose fiber that swells when it encounters water, and its volume expands by at least 30%, which significantly increases the density of the package yarn, making the dyeing liquor unable to be evenly dyed; In addition, the time period for adding soda ash to fix the color is 30-45 minutes, and the time for adding alkali to fix the color is insufficient, which may easily cause the difference between the inner and outer layers of the cheese.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of method for dyeing viscose fiber of cheese with small liquor ratio, adopting constant temperature method dyeing, comprising following process,

[0019] Pre-treatment process, add 20mL / L stabilizer BS, 1mL / L penetrant JFC, 0.5mL / L detergent, 1.5g / L caustic soda and hydrogen peroxide in the preparatory tank, adopt a constant bath ratio of 1:3, and use cheese Dyeing is carried out in the dyeing machine, the dyeing liquor penetrates the cheese through the yarn rod, circulates in one direction from the inside to the outside, starts to heat up from room temperature, raises the temperature to 50°C, and heats at a constant temperature for 20 minutes;

[0020] Dyeing process, add 10g / kg Yuan Mingfen, add in three times, add 1 / 3 of the total amount each time, keep warm at constant temperature for 10 minutes, add black dye and dyeing accelerator, keep warm at constant temperature for 20 minutes, then add 3g / L Soda ash, keep warm at constant temperature for 60 minutes, add...

Embodiment 2

[0024] A kind of method for dyeing viscose fiber of cheese with small liquor ratio, adopting constant temperature method dyeing, comprising following process,

[0025] Pre-treatment process, add 25mL / L stabilizer BS, 2mL / L penetrant JFC, 1.0 mL / L detergent, 1.8g / L caustic soda and hydrogen peroxide in the preparatory tank, using a constant bath ratio of 1:3, from cheese Dyeing is carried out in the dyeing machine, the dyeing liquor penetrates the cheese through the yarn rod, circulates in one direction from the inside to the outside, starts to heat up from room temperature, raises the temperature to 55°C, and heats at a constant temperature for 20 minutes;

[0026] Dyeing process, add 15g / kg Yuan Mingfen, add in three times, add 1 / 3 of the total amount each time, keep warm at constant temperature for 12 minutes, add pink dye and dyeing accelerator, keep warm at constant temperature for 20 minutes, then add 4g / kg L soda ash, keep warm at constant temperature for 60 minutes, add...

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Abstract

The invention relates to a low-bath-ratio cheese viscose fiber dyeing method. The low-bath-ratio cheese viscose fiber dyeing method comprises a pretreatment process and a dyeing process, cheeses are dyed in a dyeing machine, dye liquor penetrates through the chesses via a yarn rod, one-directional circulation is carried out from inside to outside, constant-temperature dyeing is implemented by increasing the room temperature to the temperature of 50-65 DEG C, a constant operation bath ratio which is 1: 3 is used, meanwhile, treatment time for the step of fixation and alkalizing is prolonged, the problem that the chesses have difference between the inner layer and the outer layer is solved effectively, and the process requirements for ultra-low-bath-ratio 1: 3 dyeing is met.

Description

technical field [0001] The invention relates to the field of textiles, in particular to a method for dyeing viscose fibers with small liquor ratio cheeses. Background technique [0002] Viscose fiber, the full name of viscose fiber, is a cellulose fiber obtained by extracting and remodeling fiber molecules from natural wood cellulose using "wood" as a raw material. The hygroscopicity of viscose fiber meets the physiological requirements of human skin. It has the characteristics of smooth and cool, breathable, antistatic, anti-ultraviolet, colorful and good color fastness. It has the essence of cotton and the quality of silk. It is an authentic plant fiber, derived from nature and superior to nature. At present, it is widely used in various underwear, textile, clothing, non-woven and other fields. [0003] Viscose fiber package dyeing is usually dyed with a large bath ratio and heating method. Viscose fiber is mainly viscose fiber that swells when it encounters water, and ...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/00D06P1/44D06P1/673D06P3/66D06P3/60D06P5/02
CPCD06P1/0096D06P1/38D06P1/445D06P1/6735D06P3/60D06P3/66D06P5/02
Inventor 施向忠王月明
Owner 桐乡市新达丝绸炼染股份有限公司