Multi-color roller gravure printing production method of textile dye

Abstract

The invention relates to a multi-color roller gravure printing production method of a textile dye. According to the traditional printing method, more floating colors exist in the washing process, and the excessive wastewater discharge is easily caused. The invention comprises the following steps that: (1) pre-treatment working solutions are selected according to textiles of different types of fibers; (2) the pre-treatment working solutions of different concentrations are padded under the conditions that the immersion time is 5-30 seconds, the expression is between 50% and 100% and the speed is 10 to 40m / min, and are dried; (3) a special dye ink for gravure printing is selected; (4) through an improved multi-color roller gravure printing machine with adjustable printing thickness, lengthened width, enhanced drying and the like, the special dye ink is printed to the textile which is padded with the pre-treatment working solutions and is dried at a speed of 10-40 m / min and is dried; (5) the printed textile enters steaming equipment for steaming fixation; and (6) after fixation, the printed textile is subjected to washing, drying and other treatment processes to complete the entire printing production process of the textile.

Description

technical field [0001] The invention relates to a production method for multi-color roller gravure printing of textile dyes. Background technique [0002] The methods of printing textiles with dyes are mainly divided into two categories in the printing and dyeing industry. One category is dye flat screen printing or rotary screen printing with up to a dozen sets of colors; the other category is dye transfer printing. [0003] Dye flat screen printing or rotary screen printing is a traditional printing method, which has the advantages of short process flow and low production and processing costs. There are many floating colors in the process, and they enter the washing solution in large quantities during washing, resulting in excessive wastewater discharge. At the same time, these unfixed dyes may even stain the white ground of printed textiles, causing quality problems in printed textile products. and other shortcomings. [0004] Dye transfer printing is a novel printing m...

AI Technical Summary

Problems solved by technology

[0006] Since dye transfer printing can print printed patterns with rich color levels, dye transfer printing represents the development direction of dye printing technology. However, how to solve some problems existing in the current production of dye transfer printing, such as a long process The addition of printing machines (such as gravure printing machines, flexographic printing machines, etc.), and the addition of specially designed transfer printing devices and other equipment, have higher technical requirements for dyes and their supporting auxiliaries, higher production and processing costs, and will also generate a lot of waste transfer paper, resulting in the consumption of a large amount of paper resources and other disadvantages

For this reason, many printing and dyeing manufacturers, colleges and universities, and scientific research institutes are actively proposing some improved methods, such as CN 201573383 U patent report, a kind of paperless active cold transfer printing machine, which adopts reusable polyester film instead of transfer printing Reactive dye cold transfer printing on paper can save a lot of paper resources and reduce production and processing costs, but it will also cause some other problems. higher technical requirements

[0007] In general, with regard to continuing to maintain the rich color levels of the printing patterns of dye transfer printing, the dye fixation rate is high, and the floating color is less in the washing process, which can reduce waste water discharge. The white ground staining of printed textiles is also greatly reduced, thereby reducing the product quality problems of printed textiles. On the basis of how to further shorten the dye transfer printing process and how to further reduce the production and processing costs of dye transfer printing, etc., here There are few literature or patent reports on

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