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Digital printing process of wool fabric

A digital printing and process technology, applied in the field of wool fabric digital printing technology, can solve the problems of light color of printed fabrics, difficult operation control, application influence, etc., and achieve the effect of 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 of wool fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] (1) Low-pressure plasma pretreatment: power 300W, time 7min, pressure 30Pa;

[0056] (2) Alkaline slurry: the alkaline slurry includes: 2% sodium alginate, 7% urea, 1% sodium sulfate, 0.4% thiourea dioxide, 0.27% sodium bicarbonate and 1% penetrant;

[0057] (3) Spray printing, drying, the drying temperature is 60°C, and the drying time is 3 minutes;

[0058] (4) Steam for 60 minutes, rinse with cold water below 30°C, and wash with warm water at 40°C;

[0059] (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;

[0060] (6) Wash in warm water at 40°C, cold water below 30°C, and dry.

[0061]The properties after low-pressure plasma treatment are: whiteness 50.55, shrinkage rate 8.10%, warp strength 416.0N, K / S value after printing 107.593, dry and wet rubbing fastness 4-5, 4; soaping fastness Degree of staining: 4.

Embodiment 2

[0063] (1) Low-pressure plasma pretreatment: power 250W, time 15min, pressure 20Pa;

[0064] (2) Alkaline slurry: the alkaline slurry includes: 1% sodium alginate, 10% urea, 0.5% sodium sulfate, 1% thiourea dioxide, 0.1% sodium bicarbonate and 2% penetrant;

[0065] (3) Spray printing, drying, the drying temperature is 70°C, and the drying time is 2 minutes;

[0066] (4) Steam for 50 minutes, rinse with cold water at 35°C, and wash with warm water at 55°C;

[0067] (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;

[0068] (6) Wash in warm water at 55°C, cold water at 35°C, and dry.

[0069] The properties after low-pressure plasma treatment are: whiteness 50.46, shrinkage rate 8.05%, warp strength 415.1N, K / S value after printing 104.572, dry and wet rubbing fastness 4-5, 4; soaping fastness Degree of staining: 4.

Embodiment 3

[0071] (1) Low-pressure plasma pretreatment: power 350W, time 5min, pressure 40Pa;

[0072] (2) Alkaline slurry: the alkaline slurry includes: 4% sodium alginate, 5% urea, 3% sodium sulfate, 0.1% thiourea dioxide, 0.6% sodium bicarbonate and 0.5% penetrant;

[0073] (3) Spray printing, drying, the drying temperature is 45°C, and the drying time is 10 minutes;

[0074] (4) Steam for 70 minutes, rinse with cold water at 20°C, and wash with warm water at 40°C;

[0075] (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;

[0076] (6) Wash with warm water at 40°C, cold water at 30°C, and dry.

[0077] The properties after low-pressure plasma treatment are: whiteness 49.89, shrinkage rate 7.95%, warp strength 416.4N, K / S value after printing 108.154, dry and wet rubbing fastness 4-5, 4; soaping fastness Degree of staining: 4.

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Abstract

The invention relates to a digital printing process of a wool fabric. The digital printing process comprises the following steps of (1) carrying out low-pressure plasma pretreatment at the power of 250-350W and the pressure of 20-40Pa for at least 5 minutes; (2) adding alkaline slurry, wherein the alkaline slurry comprises 1-4% of sodium alginate, 5-10% of urea, 0.5-3% of anhydrous sodium sulfate, 0.1-1% of thiourea dioxide, 0.1-0.6% of sodium bicarbonate and 0.5-2% 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, and 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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IPC IPC(8): D06P3/14D06P1/642D06P1/48D06P1/673D06P1/44D06P5/20D06P5/30
Inventor 于锦清
Owner WUXI DONGXIN WEAVING
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