Mixing printing ink for intaglio printing of polyethylene heat shrinking film

Abstract

The invention relates to a mixing printing ink for intaglio printing of a polyethylene heat shrinking film, belonging to the field of intaglio printing. With respect to the traditional mixing printing ink for intaglio printing, printing ink does not dry quickly in the printing process, a volatile solvent cannot volatilize quickly, residues on a finished product exceed standards and the quality of the finished product does not meet the food hygienic standard. The mixing printing ink for the intaglio printing of the polyethylene heat shrinking film is obtained by adding raw materials to a mixing tank to be uniformly mixed and stirred, wherein the raw materials in parts by weight comprise 186-214 parts of polyurethane fat-dissolving printing ink, 112-128 parts of dimethyl carbonate, 47-53 parts of isopropyl alcohol and 28-32 parts of n-propyl acetate. In European standards, the toxicity of dimethyl carbonate is lower than that of drinking wine. The mixing printing ink is used for the intaglio printing of the polyethylene heat shrinking film, the mixing printing ink can dry quickly in the intaglio printing process, the volatile solvent can volatilize quickly, the printed finished product is free of residues, and the quality of the finished product meets the food hygienic standard; and with the adoption of the mixing printing ink, the yield and the quality of the intaglio printing of the polyethylene heat shrinking film can be improved.

Description

technical field [0001] The invention relates to the field of polyethylene heat-shrinkable film gravure printing, in particular to a prepared ink for polyethylene heat-shrinkable film gravure printing. Background technique [0002] In prior art polyethylene shrink film gravure printing processes, formulated inks are used. The prepared ink is obtained by adding a certain amount of polyethylene heat-shrinkable film gravure printing ink and a certain amount of volatile solvent into a mixing tank and mixing them evenly. Using this prepared ink for polyethylene shrink film gravure printing, in order to make the printed pattern meet the quality requirements, the printing speed is generally 100-120 m / min, it is difficult to increase the gravure printing speed, and it is also difficult to increase the output of finished products; gravure printing The temperature in the drying box used in the process is 55-65 degrees Celsius; the production energy consumption is 300 kWh / 10,000 square...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the prior art polyethylene heat-shrinkable film gravure printing ink can not be quickly dried in the gravure printing process, the volatile solvent can not be volatilized quickly, and the volatile solvent can not be volatilized after printing. The residue on the finished product exceeds the standard, and the quality of the printed product does not meet the defects of food hygiene standards. To meet people's wishes, a prepared ink for gravure printing of polyethylene heat shrinkable film is provided. The prepared ink for gravure printing of polyethylene heat shrinkable film During the printing process, the ink can dry quickly, and the volatile solvent can evaporate quickly, and the volatile solvent has no residue on the finished product after printing. The quality of the printed product meets the food hygiene standard, thereby improving the quality of the finished product; , can increase the speed of gravure printing to 200 m / min, thereby increasing the output of finished products, the qualified rate of finished products is as high as 99%, the drying temperature in the drying box is 33-45 degrees Celsius, and the energy consumption is saved by 40%, making polyethylene shrink film 40% reduction in packaging costs for the gravure printing market