A printing method for cigarette pack wrinkles

Abstract

The invention provides a cigarette packet wrinkle printing method. According to the method, high-speed printing adaption, special effect UV fission varnish and a web gravure printing machine are improved, and a UV wrinkling device capable of adjusting the horizontal distance from a printing stock is additionally arranged between a printing gravure cylinder and a UV curing device. The method includes the steps of forming the effect of different wrinkles under the action of the wrinkling device by using the UV fission varnish and then performing UV curing; printing special effects, such as snowflakes and wrinkles on the web gravure printing machine at the speed of 150-180 m / min (about 18000-21000 pieces / hour). By means of the cigarette wrinkle printing method, different special cigarette packet wrinkle effects can be produced according to the needs, the process is optimized, the operation is simple, the product quality is stable, the use amount of ink is reduced to effectively reduce material costs, and the production efficiency is relatively 6 times higher than that of silkscreen printing.

Description

technical field [0001] The invention relates to the technical field of printing, in particular to a method for printing cigarette pack wrinkles. Background technique [0002] In the field of packaging and printing, such as cigarette pack printing, in order to attract consumers’ desire to buy, the surface of the cigarette pack is processed to form a wrinkle effect, which can contrast the thickness of the background color and increase the touch texture of the surface, which is a good improvement. The grade of product packaging. [0003] At present, there are three main ways to form wrinkles on the surface of printed matter. The first is screen printing wrinkles, which are finished by wrinkling and drying with screen printing wrinkle ink; It is made by pressing on paper; the third is to make a gravure roll similar to wrinkles, and print ultraviolet embossed ink to simulate the effect of wrinkles. Among the above three methods of producing wrinkles, the first method produces t...

AI Technical Summary

Problems solved by technology

Among the above three methods of producing wrinkles, the first method produces the most random wrinkles, and the size of the lines can be adjusted within a certain range according to requirements, but its overprinting accuracy on the product is low, and the durability of the screen printing plate Not high, the characteristics of screen printing equipment determine that the production speed of screen printing wrinkles is low, and it takes a long time; although the second and third methods can approximate the effect of simulating wrinkles, they are actually quite different from the real wrinkle effect. Large, the thickness of the texture cannot be adjusted, and the three-dimensional effect is not strong

[0004] Chinese patent CN103612493A discloses a gravure wrinkle printing method, which installs a wrinkle wrinkle lamp and a wrinkle curing lamp on the gravure printing machine, and adjusts the horizontal distance between the wrinkle wrinkle lamp and the printing position and the wrinkle curing lamp and wrinkle curing lamp. The distance in the vertical direction between the surfaces of the substrate and the distance in the horizontal direction between the wrinkle wrinkle lamp and the wrinkle curing lamp can realize wrinkles of different thicknesses according to actual needs, but the inventors found in the process of realizing the present invention: The existing UV fission varnish used under high shear force (during high-speed printing) has foaming phenomenon, and the viscoelasticity of the ink fluid is not stable enough, which affects the printing efficiency, and the transfer fission flowering effect is poor