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Pretreatment method of digital printing fabric with water-repellent and antifouling functions

A digital printing and pretreatment technology, which is applied in the field of printing and dyeing, can solve the problems of unclear pattern edges, poor color fastness of paint and ink combination, etc., and achieve the improvement of anti-seepage effect, improvement of the overall wearing performance of fabrics, and improvement of printing suitability Effect

Pending Publication Date: 2022-01-25
DONGHUA UNIV
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in the printing process, while the paint ink spreads on the surface of the fabric, longitudinal penetration and lateral diffusion along the warp and weft direction will occur under the capillary wicking effect, so that the edge of the pattern is not clear, and the paint ink is spread on the surface. Combined with poor color fastness and other issues

Method used

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  • Pretreatment method of digital printing fabric with water-repellent and antifouling functions
  • Pretreatment method of digital printing fabric with water-repellent and antifouling functions
  • Pretreatment method of digital printing fabric with water-repellent and antifouling functions

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Embodiment 1

[0027] A method for pretreatment of digitally printed fabrics with water-repellent and antifouling functions, comprising the following steps:

[0028] Step 1): configure the cationic modifier pretreatment solution, and let it stand at room temperature; the mass concentration of the cationic modifier pretreatment solution is 1%, and the cationic modifier is an ammonium chloride polymer;

[0029] Step 2): Prepare a fluorine-containing water-repellent agent solution and add it to the cationic modifier pretreatment solution, heat and stir in a water bath, and mix evenly; the mass concentration of the fluorine-containing water-repellent agent solution is 0.05%, and the heating temperature of the water bath is 80°C;

[0030] Step 3): The mixed solution obtained in step 2) is used to process the fabric by two dipping and two rolling methods; specifically, the horizontal padding car is used to process the fabric, and the time of soaking in the mixed solution is 40 minutes each time, a...

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Abstract

The invention discloses a pretreatment method of a digital printing fabric with water-repellent and antifouling functions. The pretreatment method is characterized by comprising the following steps that a cationic modifier pretreatment solution is prepared, a fluorine-containing water repellent solution is prepared and added into the cationic modifier pretreatment solution, and heating and stirring are carried out under a water bath condition for being uniformly mixed; the fabric is treated with the mixed solution in a two-dipping and two-rolling mode; and the treated fabric is dried. The pretreatment method is simple to operate and relatively low in cost, and has a remarkable improvement effect; and pretreatment is carried out in the mode, on the basis that the printed fabric has the good waterproof and anti-pollution effects, the permeation phenomenon of coating ink on the surface of the fabric is effectively weakened, so that the clear degree of the edge of a printed pattern is remarkably enhanced, the color obtaining depth and the soaping-resistant and sunlight-resistant color fastness are improved to a certain degree, and the water repellent is added, so that the hand feeling style of the fabric is remarkably improved.

Description

technical field [0001] The invention relates to a digital printing fabric pretreatment method with water-repellent and antifouling functions, belonging to the technical field of printing and dyeing. Background technique [0002] Digital printing technology is a new type of printing method, which can be used without plate making, steaming and washing, and high-temperature baking and color fixing after printing and dyeing. The operation process is simple, and it has the advantages of low energy consumption, low noise, and low pollution. At the same time The skin-upgraded ink droplets can greatly improve the fineness of the edge contour and realize the printing of complex patterns. In contrast, traditional screen or rotary screen printing has many disadvantages such as long process, single plate-making style, limited color types, and large sewage discharge. The large-scale use of digital printing has gradually become a trend. Among them, paint digital printing technology is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/52D06P1/44
CPCD06P1/52D06P1/445
Inventor 张芝畅丁亦王妮
Owner DONGHUA UNIV
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