A kind of thermal transfer label with stress color changing effect and its production process

Abstract

The invention relates to a heat transfer printing trademark with stress discoloration effect and a production process thereof. The thermal transfer trademark having a stress-discoloration effect, comprises a PET film arranged in order from bottom to top, release layer, surface protection layer, stress chromotropic layer, Chromophore layer, white glue layer, Anti-sublimation lay and hot melt adhesive layer, the stress chromotropic layer comprises the following raw materials in parts by weight: stress chromotropic resin, dry process resin, organic color paste, defoamer, Polyether Defoamer, silicone leveling agent, the thermal transfer trademark with stress discoloration effect produced by the invention is realized by using the principle of stress whitening, When it is stretched, pushed up, bent, folded and other external forces, the deformation of the film will show color change, and with the change of deformation gradient, the color shows a light to dark gradient characteristics, givinga natural, soft feeling, once the external force is eliminated, the color of the trademark surface will naturally recover as before.

Description

technical field [0001] The invention belongs to the field of heat-transfer label preparation, and in particular relates to a heat-transfer label with a stress-color-changing effect and a production process thereof. Background technique [0002] Thermal transfer printing is a surface printing method. First, the transfer film is printed, that is, the pattern or text is first printed on the surface of the film, and then the graphics and text on the printing film are transferred to the substrate by heating and pressing through the thermal transfer processing equipment. The surface of the object makes the product bright and beautiful, greatly improves the product grade, increases the added value of the product and the market competitiveness. It is characterized by simple process, few procedures, high efficiency, no pollution, small footprint and low investment. Because its printing process is simple, easy to operate, the required materials are economical and easy to get, and it ...

AI Technical Summary

Problems solved by technology

The printing method of this process is widely used in blank T-shirts, knitted T-shirts, blank sweaters, denim, plush, toys, shoes, backpacks, hats, etc., but the hand feeling style of the existing heat transfer trademark products is not complete enough , the product series is not perfect enough, the product types are not rich enough, and there are few product styles for customers to choose from, which needs further improvement