Environment-friendly thermal transfer printing film and preparation method thereof

Abstract

The invention relates to an environment-friendly thermal transfer printing film and a preparation method thereof, belonging to the technical field of thermal transfer printing. The environmental-friendly thermal transfer printing film includes a printing carrier, a protective layer, a graphic layer, a background layer and a hot-melt adhesive layer from bottom to top, and the protective layer is printed on the polyurethane resin solution with a solid content of 24%. The surface of the printing carrier is formed, the graphic layer is formed by printing ink on the protective layer, the background layer is formed by printing the background slurry on the graphic layer, and the hot melt adhesive layer is formed by hot melt The glue is formed by coating on the background layer. The environmentally friendly thermal transfer printing film obtained by the present invention meets the technical requirements of Q / FJQY 002-2018, the overprint error is ≤0.4mm, the color difference of the same color in the same batch is △E≤5, the abrasion resistance is ≥90%, and it is washable and washable The fading rate is ≤15%, and the basic safety technical requirements meet the requirements of Class B in GB18401.

Description

technical field [0001] The invention belongs to the technical field of thermal transfer printing, and in particular relates to an environment-friendly thermal transfer printing film and a preparation method thereof. Background technique [0002] If it is necessary to print on textile fabrics or leather products, the traditional printing process is to make a plate first, screen printing needs to make a screen plate, gravure printing needs to make a gravure printing plate, and offset printing needs to make a PS plate, which has low efficiency and high cost. , The disadvantage of large pollution. Thermal transfer printing can overcome the above disadvantages. [0003] Thermal transfer printing film refers to the special functional printing film that pre-prints graphics and text on the surface of the carrier film. Under the combined action of heating and pressure, the graphics and text are separated from the carrier film and firmly attached to the surface of the substrate. Wit...

AI Technical Summary

Problems solved by technology

[0004] Since the development of thermal transfer printing film, although its technology has been continuously improved and the product quality is getting higher and higher, most of the current thermal transfer printing films still have the following deficiencies: First, the color of the image and text after transfer is not bright enough, Reflective without delicate and exquisite decoration; second, the bonding with some textiles is not firm, and the label is easy to drop; third, the mechanical strength, toughness and elasticity of the hot stamping layer are still not satisfactory; fourth, dry friction is easy to fade; Fifth, delamination and discoloration are prone to occur after washing; sixth, the product quality cannot meet the increasingly stringent environmental protection and safety technical requirements

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