Organic solvent-resistant ink for thermal sensing ribbon, release layer and preparation method of organic solvent-resistant ink

Abstract

The invention discloses organic solvent-resistant ink for a thermal sensing ribbon, a release layer and a preparation method, and relates to the technical field of thermal sensing ribbons, the organic solvent-resistant ink comprises 35-55 parts of saturated polyester resin, 2 parts of a dispersant, 10-15 parts of a pigment, 40-60 parts of ternary vinyl chloride-vinyl acetate resin, and 300-500 parts of butanone. According to the invention, the ternary vinyl chloride-vinyl acetate resin is added into the ink, so that the prepared ink material has better adhesive force with base materials, such as coated paper and isatin. Silicon dioxide microspheres in the release layer are hard in texture, wear-resistant and high-temperature-resistant, and the scratch resistance of printed patterns is remarkably improved after the surface of the ink layer is covered with the silicon dioxide microspheres. And the release layer taking high-molecular-weight polymethyl methacrylate as a main body has a firm supporting effect on the silicon dioxide microspheres and the polytetrafluoroethylene wax particles. Besides, gaps between the silicon dioxide microspheres and the polytetrafluoroethylene wax particles are filled with the release layer main body, so that the organic solvent is difficult to permeate and contact with the ink layer, and the ink layer has good organic solvent resistance.

Description

technical field [0001] The invention relates to the technical field of thermal sensing ribbons, in particular to an organic solvent-resistant ink for thermal sensing ribbons, a release layer and a preparation method. Background technique [0002] Thermal printers use a thermal print head to print the ink layer on the thermal ribbon on the substrate materials such as Xiaoyinlong and coated paper. Thus, the pre-set two-dimensional code, bar code, and text symbol content are formed on the base material. Thermal printers are widely used in the production process of distribution invoices, clothing labels, electronic product labels, commodity packaging bags, etc., which can greatly facilitate people's lives, so they are favored by ordinary people. [0003] The thermal sensing ribbon is an organic integration of four-layer structure, namely PET base film, back coating, ink layer, and release layer. Some thermal sensing ribbons for specific substrates also add a bonding layer outs...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is that in the field of heat sensitive ribbons, the problem that the ink layer printed on the base material is easy to fall off when encountering organic solvents has not been effectively solved. This shortcoming limits the promotion of thermal printing. In order to solve this technical problem, an organic solvent-resistant ink and a release layer for a heat-sensing ribbon and a preparation method are proposed. In parts by weight, the heat-sensing ribbon ink layer material includes: saturated polyester resin 35 -55 parts, 2 parts of dispersant, 10-15 parts of pigment, 40-60 parts of ternary vinyl acetate resin, 300-500 parts of butanone

Images