Water-based ink thermal transfer ribbon and preparation method thereof

Abstract

The invention discloses a water-based ink thermal transfer ribbon which comprises a base, a release layer, an ink layer and a heat resistant coating, wherein one side of the base is coated with the release layer, the outer side of the release layer is coated with the ink layer, and the other side of the base is coated with the heat resistant coating; the ink layer is prepared from the following raw materials in parts by weight: 14-17 parts of waterborne polyurethane resin, 10-15 parts of epoxy resin, 18-23 parts of acrylic resin, 15-20 parts of carbon black, 8-12 parts of copper chromite black, 22-26 parts of kaolin, 9-13 parts of quartz powder, 2-5 parts of diatomite, 5-8 parts of polyethylene wax, 0.7-1.5 parts of polysiloxane defoaming agents and 0.5-1.0 part of chitosan. The invention further discloses a preparation method of the water-based ink thermal transfer ribbon. The prepared thermal transfer ribbon is free from toxic solvents such as methylbenzene and butanone, operating environments can be favorably improved, health of workers is ensured, and environmental protection requirements are met.

Description

technical field [0001] The invention relates to the technical field of thermal transfer ribbons, in particular to a water-based ink thermal transfer ribbon and a preparation method thereof. Background technique [0002] Thermal transfer ribbon is a necessary consumable material for thermal transfer printing, and it is also the core material that determines the quality of thermal transfer printing. Thermal transfer ribbon transfers the ink layer on the ribbon to the plastic through heat and pressure. It is a kind of printing consumables on materials such as paper, composite film, etc. It uses temperature and pressure to dissolve the ink on the ribbon, and then hot stamps the ink on the label. It is suitable for printing identification and marking information such as production date, batch number, and weight. , can achieve clear printing of characters, and the printed handwriting has the characteristics of clear, firm, scratch-resistant, and cooking-resistant. [0003] At pre...

AI Technical Summary

Problems solved by technology

[0003] At present, the thermal printing ribbons in the prior art are all solvent-based systems. During the coating and drying process, a large amount of organic solvents volatilize, which not only increases the production cost, but also causes great waste. More importantly, a large amount of toluene and butanone The volatilization of organic solvents such as organic solvents can easily cause fires and explosions. Toxic organic solvents volatilize into the environment of ink manufacturing and ribbon production, resulting in harsh operating environments, damaging the health of workers, and causing air pollution, which does not meet environmental protection requirements.