Special round UV cured and hot pressed tag for resin grinding wheel

Abstract

The invention discloses a special round UV cured and hot pressed tag for a resin grinding wheel. The special round UV cured and hot pressed tag comprises a tag body with a circular structure, wherein the tag body is formed by a paper base layer as well as a bottom ink layer and an image-text ink layer which are printed on the paper base layer sequentially. In order to ensure that the hot pressed tag is clear in imprint, is not chalked or cracked and has small color change amplitude at a high temperature, modified ink used in the image-text ink layer is prepared from UV ink, epoxy acrylic resin, polyester acrylic resin, tricarboxymethylolpropane triacrylate, tripropylene glycol diacrylate, benzophenone, 1,2-diphenylethane, methyldiethanolamine, benzenediol, 502 A/B-2 adhesive, pigments and auxiliary additives in proportion. The proper paper base layer is adopted for the hot pressed tag, on the basis of the principle that hot melted chemical molecules are mutually incompatible and with adoption of a UV improved printing technology, the finished tag product is non-toxic, odorless and environment-friendly, and can be compared favorably with a screen plated tag, the cost is reduced by 30% as compared with screen printing cost, and the printing speed is 4-5 times higher than that of screen printing.

Description

technical field [0001] The invention relates to a grinding wheel label, in particular to a special circular UV light-curable heat-resistant pressure-resistant label for a resin grinding wheel. Background technique [0002] The grinding wheel label is a special label used to mark various technical indicators such as trademark brand, specification, model, size, thickness, material, particle size, usage method, implementation standard, production date, safety protection, etc. When the grinding wheel is formed, the label is directly pressed on the side of the grinding wheel and then enters the high-temperature curing furnace together with the grinding wheel for curvilinear vulcanization and drying. Since the curing temperature of the grinding wheel is generally between 190 and 210°C, the binder and the connecting material of the grinding wheel are in an active melting state, and the ink layer of the ordinary UV label will be dyed each other to cause a change in hue, that is, the...

AI Technical Summary

Problems solved by technology

Since the curing temperature of the grinding wheel is generally between 190 and 210°C, the binder and the connecting material of the grinding wheel are in an active melting state, and the ink layer of the ordinary UV label will be dyed each other to cause a change in hue, that is, the color of the label The range is large, the content of the text is blurred, and the inherent color of the label ink layer cannot be guaranteed

[0003] Two types of heat-pressed labels published in the Chinese invention patent "Special Screen Printing High Temperature Curing Color Heat-pressed Label for Resin Grinding Wheel" (ZL 201110144230.1) and "Circular Flexo Color Heat-pressed Label for Resin Grinding Wheel" (ZL 2014105498460) are respectively suitable for screen printing process and flexo printing process, but it is not suitable for UV printing process, especially in order to ensure the quality of UV printing labels, the manufacturer has modified the light source part of the UV printing machine, and added hot air blowing on the basis of the original UV ultraviolet light source. impact drying system, it is necessary to develop a resin grinding wheel hot-press label that can meet the requirements of the existing UV printing machine + hot air printing process