Preparation method and application of heat transfer printing medium-temperature disperse dye ink

Abstract

The invention provides a preparation method and application of heat transfer printing medium-temperature disperse dye ink, and relates to the technical field of dyeing. The heat transfer printing medium-temperature disperse dye ink is prepared from the following raw materials in percentage by mass: 0.5% to 9% of a medium-temperature disperse dye, 0.5% to 10% of a dispersing agent, 5% to 50% of a viscosity regulator, 0.01% to 5% of a surface tension regulator, 0.01% to 1% of an antibacterial agent and the balance of water. The disperse dye adopted by common heat transfer printing ink is the low-temperature disperse dye, the dye sublimation fastness is low, and heat transfer resistance is not achieved. In the transfer printing processing process, the thermal migration phenomenon occurs afterhigh-temperature treatment or in the long-term storage process. The heat transfer printing medium-temperature disperse dye ink is high in sublimation fastness and resistant to thermal migration, thethermal migration phenomenon cannot occur in the transfer printing processing process, and staining and color matching phenomena cannot occur in the storage and secondary processing process. The yieldand the customer satisfaction can be improved in the production process.

Description

technical field [0001] The invention relates to the technical field of dyeing, in particular to a method for preparing a medium-temperature disperse dye ink for thermal transfer printing and its application. Background technique [0002] Disperse dyes are divided into three types according to their energy consumption in dyeing, low-temperature type disperse dyes (E type), low energy consumption, suitable for exhaust dyeing, high dyeing rate, good level dyeing, poor sublimation fastness ; High-temperature disperse dyes (H-type or S-type), high energy consumption, suitable for hot-melt dyeing and permanent pressing finishing, good sublimation fastness, poor level dyeing; medium-temperature disperse dyes (SE type or M Type), between low-temperature disperse dyes and high-temperature disperse dyes, suitable for various dyeing methods, and has the advantages of both high-temperature and low-temperature disperse dyes. [0003] The application of digital printing is becoming more ...

AI Technical Summary

Problems solved by technology

[0003] Digital printing is more and more widely used. Now when digital printing processes polyester fabrics, most of them use disperse sublimation inks. The disperse dyes used in sublimation inks are low-temperature disperse dyes. The disadvantage is that the dye sublimation fastness is poor. Finally, due to the low molecular weight of the dye, thermal migration is prone to occur

It is easy to cause staining and color matching during storage and secondary processing

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