Discharge printing process of reactive dyes based on jet ink printing technology

Abstract

The invention discloses a discharge printing process of reactive dyes based on a jet ink printing technology, and belongs to the technical field of jet ink printing. The process comprises the following steps: starching; drying; carrying out ground dyeing; carrying out computer printing color-separation draft-drawing (CAD) edition treatment; preparing discharge printing ink and carrying out spray printing; carrying out steam fixation; washing and drying. The discharge printing process of the reactive dyes based on the jet ink printing technology disclosed by the invention is simple and convenient to operate; the computer printing color-separation draft-drawing (CAD) edition treatment on patterns subjected to discharge printing is carried out so as to obtain desired patterns; an ink jet nozzle is controlled by a computer to print the patterns, and the outlines of the printed patterns are clear and the colors of the patterns are vivid and gorgeous; the preferable printing effect on the double sides of the patterns can be achieved, and meanwhile, the use quantity and the cost can be reduced.

Description

Technical field [0001] The invention relates to a reactive dye discharge printing process based on inkjet printing technology, and belongs to the technical field of inkjet printing. Background technique [0002] Textile printing has a long history. Hollow template printing technology began as early as the Tang Dynasty. With the continuous development of the times, textile printing technology has become more and more mature. Traditional textile printing includes pattern design, engraving and netting, mixing, printing, Post-processing. Although it can also meet production needs, traditional printing, whether it is flat screen or round screen, has disadvantages such as complex printing process, high design cost, heavy workload, long time, and environmental pollution. In recent years, with the use of computers and information With the development of other technologies, digital inkjet printing technology has attracted more and more attention. [0003] Inkjet printing, also known as di...

AI Technical Summary

Problems solved by technology

Most of the processes are printed by screen printing, which mainly has the following three disadvantages: first, the outline of the pattern part of the printing screen discharge printing is not clear, and it is easy to seep, which affects the printing effect; second, it is easy to be contaminated during the printing process. The ground color will cause the ground color to be stained and make the fabric unclean; the third is that the printing process is time-consuming and laborious, it is not easy to control and the amount is large, resulting in a large waste of dyeing and chemical materials

[0006] Although many patents have disclosed the report of reactive dye inkjet printing process, the report of utilizing inkjet printing technology to carry out dyeing discharge process is seldom; the discharge ink that also has report to adopt is formaldehyde-free whitening agent, and the black ink that pulls out is resistant to discharge. The mixed solvent of dye and formaldehyde-free whitening agent does not describe the inkjet discharge printing in detail. At present, there is no relevant research on the technology of reactive dye discharge printing with inkjet printing machines. Conventional reactive dye discharge printing The paste prescription is only suitable for manual flat screen printing and rotary screen printing, and cannot be used for inkjet printing, which will block the nozzle. It is necessary to develop discharge ink suitable for inkjet printing machine printing, and adopt a reasonable inkjet discharge printing process to obtain Fabric with a clear pattern

In addition, these methods that have been reported cannot perform double-sided dye discharge

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