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Cotton-viscose blended fabric reactive dyeing production process

A reactive dyeing and viscose blending technology, which is applied in the field of printing and dyeing, can solve the problems of large difference in fiber hue, viscose fiber is not alkali-resistant, affecting product quality, etc., and achieves the effect of improving product quality, improving fabric strength, and strict quality.

Inactive Publication Date: 2019-06-18
ZHEJIANG HANGMIN STOCK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the non-alkali resistance of viscose fiber, cotton viscose fabrics are generally not dyed by mercerizing; after dyeing, viscose fiber has a darker color; cotton fiber has not been mercerized, and the roundness, surface smoothness, and optical properties of the fiber have not been improved (for The reflection of light changes from diffuse reflection to more directional reflection), and the color is lighter; and the hue difference between the two fibers is large, and the overall color of the cloth is old, which seriously affects the product quality; even if the cotton with high price and high cost is used , special reactive dyes with high viscosity and same color, it is also difficult to meet customer requirements

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment 1: a kind of technique that cotton, viscose blended fabric reactive dyeing is produced, carries out according to the following steps:

[0080] 1), select gray cloth:

[0081] Select a cylinder of polyester-cotton viscose blended gray fabric with a length of about 2,000 meters, with a width of 160cm and a weight of 110g / ㎡, dyed black;

[0082] Cotton and viscose blended fabrics are woven fabrics composed of 50% cotton fibers and 50% viscose fibers blended in warp and weft;

[0083] (2), the choice of dyeing materials:

[0084] Choice of reactive dyes:

[0085] The mechanism of reactive dyeing is divided into three stages: adsorption, diffusion, and fixation; reactive dyeing is to expand the fiber through the dye solution at medium temperature, so that the dye molecules are transferred to the inside of the fiber; it is required that the dye has good diffusivity and affinity for the fiber. And the directness should be low to ensure the level dyeing of the fab...

Embodiment 2

[0147] Embodiment 2: a kind of technique that cotton, viscose blended fabric active dyeing is produced, carries out according to the following steps:

[0148] (1), select gray cloth:

[0149] Select a cylinder of R / C fabric gray cloth with a length of about 1600 meters, a white cloth with a width of 160cm, a weight of 160g / ㎡, and dyed gray.

[0150] R / C fabric is a woven fabric composed of viscose fibers in the warp direction and cotton fibers in the weft direction.

[0151] (2) Process flow design: fabric turning→sewing→singeing→alkali desizing, washing→oxygen bleaching in machine cylinder→pretreatment→dyeing→dehydration→opening→drying (oiling) and shaping→finished product preshrinking→inspection code ruler

[0152] (3) White billet singeing:

[0153] The TDF-2000 natural gas burner singeing machine of Taizhou Defeng Printing and Dyeing Machinery Co., Ltd. is used, the front and back sides are singed once, the speed is 110 m / min, and the flow rate of natural gas is 18;

...

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Abstract

The invention relates to printing and dyeing methods, particularly to a cotton-viscose blended fabric reactive dyeing production process. The cotton-viscose blended fabric reactive dyeing production process is applicable to new production processes of dyeing cotton-viscose woven fabrics with an overflow dyeing machine. The cotton-viscose blended fabric reactive dyeing production process is implemented according to the following steps of fabric sample selection, technical process design, gray fabric singeing, alkali desizing design and washing, setting of pretreatment formulas and processes andreactive dye dying formulas and processes, sample vat dyeing, setting of dyeing, oiling and setting processes, after-finished product pre-shrinking, and finished product inspection. The cotton-viscose blended fabric reactive dyeing production process changes the dye yield and the color saturation of cotton fiber of cotton-viscose fabric non-mercerizing processes, ensure consistent dye yield of cotton fiber and viscose fiber, solves the problem of color difference between the cotton fiber and the viscose fiber, and meanwhile, reduces damage of dyeing processes to the viscose fiber and greatlyimproves the strength of fabrics and the quality of products to meet the increasingly strict requirements of clients on quality.

Description

technical field [0001] The invention relates to a printing and dyeing method, in particular to a production process for active dyeing of cotton and viscose blended fabrics, which is suitable for the new production process of cotton viscose fabric overflow dyeing machine dyeing. Background technique [0002] Due to the non-alkali resistance of viscose fiber, cotton viscose fabrics are generally not dyed by mercerizing; after dyeing, viscose fiber has a darker color; cotton fiber has not been mercerized, and the roundness, surface smoothness, and optical properties of the fiber have not been improved (for The reflection of light changes from diffuse reflection to more directional reflection), and the color is lighter; and the hue difference between the two fibers is large, and the overall color of the cloth is old, which seriously affects the product quality; even if the cotton with high price and high cost is used , Adhesive special reactive dyes with high homochromaticity ar...

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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IPC IPC(8): D06P3/85D06P3/66D06P1/673D06P5/04D06P5/02
Inventor 施鹤鸣
Owner ZHEJIANG HANGMIN STOCK
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