Active dye gravure printing ink and preparation method thereof, and method for applying active dye gravure printing ink for printing

Abstract

The invention belongs to the technical field of printing and dyeing industry, and particularly relates to an active dye gravure printing ink and a preparation method thereof, and a method for applying the active dye gravure printing ink for printing. The active dye gravure printing ink is prepared from 1-20% by mass of an active dye, 3-25% by mass of an auxiliary solvent, 0.1-5% by mass of a dyeing resistance salt, 1-10% by mass of a viscosity adjusting agent and the balance of water, wherein the active dye comprises one or a plurality of materials selected from a red active dye compound, a yellow active dye compound, an orange active dye compound and a blue active dye compound. The active dye gravure printing ink has the following characteristics that: deterioration can not be generated after storing for a long time, a color fixation rate of the dye is substantially increased after a cellulose fabric is subjected to printing and steaming color fixation.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing industry, and in particular relates to a reactive dye gravure printing ink, a preparation method thereof and a printing method thereof. Background technique [0002] At present, the methods of printing textiles with dyes are mainly divided into three categories in the printing and dyeing industry, one is flat screen printing or rotary screen printing with dye pastes of up to a dozen sets of colors; the other is dye ink transfer printing ( Including thermal transfer printing and cold transfer printing); there is also a kind of dye ink inkjet printing. [0003] Dye color paste 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, but there are also problems that the color level of the printed pattern is not rich, and some dyes have a low color fixation rate. , there are man...

AI Technical Summary

Problems solved by technology

[0003] Dye color paste 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, but there are also problems that the color level of the printed pattern is not rich, and some dyes have a low color fixation rate. , there are many floating colors in the washing process, and they enter the washing solution in large quantities during washing, causing the waste water discharge to exceed the standard. Disadvantages such as quality problems

[0004] Dye ink transfer printing is a novel printing method. At present, it mainly includes thermal transfer printing of disperse dyes on polyester fabrics and nylon fabrics and cold transfer printing of reactive dyes on cotton fabrics. Less energy consumption, higher dye fixation rate, less floating color in the washing process, can reduce waste water discharge, and at the same time, the white ground staining of printed textiles by these unfixed dyes is also greatly reduced, thereby reducing the Printed textiles have advantages such as product quality problems, but there are also long technological processes, which require the purchase of additional printing machines (such as gravure printing machines), transfer printing devices and other equipment, and have high technical requirements for dyes and supporting auxiliaries. Polyester Fabrics and nylon fabrics have poor sublimation fastness and ironing fastness after thermal transfer printing, and the production and processing costs of cotton fabric cold transfer printing are also high, and a large amount of transfer waste paper will be generated at the same time, resulting in the consumption of a large amount of paper resources and other shortcomings

[0005] Inkjet printing with dye ink is also a novel printing method, theoretically speaking, it can be used for all textiles, they have rich color levels of printing patterns, less energy consumption during dye fixation, higher dye fixation rate, and less floating in the washing process. The color is less, which can reduce the discharge of waste water. At the same time, the white ground staining of these unfixed dyes on printed textiles is also greatly reduced, thereby reducing the product quality problems of printed textiles. However, there are also advantages such as slower printing speed. Slow, unable to carry out large-scale production, only small-batch personalized production, low output, need to purchase relatively expensive inkjet printing printers and other equipment, higher technical requirements for dyes and supporting additives, The price of dye ink used in inkjet printing is also more expensive, and the production and processing cost of dye ink inkjet printing is relatively high.

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