Digital printing process for wool fabric

A digital printing and process technology, applied in the field of wool fabric digital printing process, can solve the problems of light color of printed fabrics, difficult operation control, unevenness, etc., and achieve high color fastness and uniform color

Inactive Publication Date: 2014-12-24
WUXI DONGXIN WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The specific manifestation is that the traditional chlorination treatment of wool will bring about AOX problems, which will seriously affect its application.
Moreover, the chlorination itself is also difficult to control, and it is easy to cause yellowing of the fabric and uneven treatment.
However, if it is not chlorinated, the hydrophobic lipid layer and highly cross-linked outer cuticle of wool fiber prevent the diffusion of dye molecules through the scale layer to the inside of the fiber, making the printed fabric very light and uneven.

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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  • Digital printing process for wool fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Enzyme treatment: protease 1.0g / L, temperature 50°C, time 30min, pH 8.0;

[0057] (2) Acid pulp: the acid pulp includes: 2% sodium alginate, 7% urea, 5% sodium bisulfite, 3% ammonium sulfate and 1% penetrant;

[0058] (3) Spray printing, drying, the drying temperature is 60°C, and the drying time is 3 minutes;

[0059] (4) Steam for 60 minutes, rinse with cold water below 30°C, and wash with warm water at 40°C;

[0060] (5) Soaping at 80°C, the soaping solution includes 2g / L disodium hydrogen phosphate and 3g / L soap flakes, and adjust the pH value of the soaping solution to 9 with ammonia water;

[0061] (6) Wash in warm water at 40°C, cold water below 30°C, and dry.

[0062]The properties after enzyme treatment are: whiteness 64.23, shrinkage rate 4.86%, warp strength 342.5N; K / S value after printing 97.593, dry and wet rubbing fastness 4-5, 4; soaping fastness Color: 4.

Embodiment 2

[0064] (1) Enzyme treatment: protease 0.5g / L, temperature 50°C, time 60min, pH 8.0;

[0065] (2) Acid pulp: the acid pulp includes: 1% sodium alginate, 10% urea, 3% sodium bisulfite, 6% ammonium sulfate and 0.5% penetrant;

[0066] (3) Spray printing, drying, the drying temperature is 70°C, and the drying time is 2 minutes;

[0067] (4) Steam for 50 minutes, rinse with water at 30°C, and wash with warm water at 55°C;

[0068] (5) Soaping at 70°C, the soaping solution includes 4g / L disodium hydrogen phosphate and 1g / L soap flakes, and adjust the pH value of the soaping solution to 9.5 with ammonia water;

[0069] (6) Wash in warm water at 55°C, cold water at 35°C, and dry.

[0070] The properties after enzyme treatment are: whiteness 64.10, shrinkage rate 4.64%, warp strength 340.5N; K / S value after printing 95.482, dry and wet rubbing fastness 4-5, 4; soaping fastness Color: 4.

Embodiment 3

[0072] (1) Enzyme treatment: protease 1.5g / L, temperature 45°C, time 60min, pH 8.5;

[0073] (2) Acid pulp: the acid pulp includes: 4% sodium alginate, 5% urea, 8% sodium bisulfite, 1% ammonium sulfate and 1.5% penetrant;

[0074] (3) Spray printing, drying, the drying temperature is 45°C, and the drying time is 6 minutes;

[0075] (4) Steam for 70 minutes, rinse with cold water at 35°C, and wash with warm water at 55°C;

[0076] (5) Soaping at 90°C, the soaping solution includes 1g / L disodium hydrogen phosphate and 6g / L soap flakes, and adjust the pH value of the soaping solution to 8.5 with ammonia water;

[0077] (6) Wash with warm water at 40°C, cold water at 30°C, and dry.

[0078] The properties after enzyme treatment are: whiteness 61.85, shrinkage rate 4.82%, warp strength 341.4N; K / S value after printing 92.681, dry and wet rubbing fastness 4-5, 4; soaping fastness Color: 4.

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Abstract

The invention relates to a digital printing process for a wool fabric. The digital printing process comprises the following steps of (1) carrying out enzyme treatment by using 0.5-1.5g/L protease at the temperature of 45-55 DEG C and the pH value of 7.5-8.5 for 25-60 minutes; (2) adding acidic slurry, wherein the acidic slurry comprises 1-4% of sodium alginate, 5-10% of urea, 3-8% of sodium hydrogen sulfite, 1-6% of ammonium sulfate and 0.5-1.5% of penetrating agent; (3) carrying out spray printing, and drying at the temperature of 45-70 DEG C for at least 2 minutes; (4) steaming for 50-70 minutes, washing and spraying by using cold water with the temperature of lower than 35 DEG C, and washing by using warm water with the temperature of 40-55 DEG C; (5) soaping at the temperature of 70-90 DEG C, wherein a soaping solution comprises 1-4g/L sodium hydrogen phosphate and 1-6g/L soap flakes, regulating the pH value of the soaping solution to 8.5-9.5 by using ammonia water; and (6) washing by using warm water with the temperature of 40-55 DEG C, washing by using cold water with the temperature of lower than 35 DEG C, and drying. The printed wool fabric prepared by using the process disclosed by the invention is high in color fastness and uniform in pattern color.

Description

technical field [0001] The invention relates to the field of digital printing, in particular, the invention relates to a wool fabric digital printing process. Background technique [0002] Wool fiber is a kind of natural fiber, which has many excellent properties and is deeply loved by consumers. With the continuous development of my country's economy, my country has become the largest wool textile production country in the world. At the same time, my country is also a big consumer of wool products. [0003] However, in the domestic market, except for some printed sweaters, we rarely see other printed wool textile products. There are two reasons for this situation: First, the batch size is small, and the most advanced screen printing machine is difficult to adapt to high-grade clothing fabrics, which need to reflect fashion and individualized wool fabric printing processing in smaller batches. After pattern design, sketching, net making and other processes, not only the p...

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 Applications(China)
IPC IPC(8): D06P3/14D06P1/642D06P1/48D06P1/673D06P1/44D06P5/30
Inventor 于锦清
Owner WUXI DONGXIN WEAVING
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