Method for achieving great impression effect through gravure device

Abstract

The invention discloses a method for achieving a great impression effect through a gravure device. The method comprises the following steps that firstly, gravure ink with the surface energy of 20-29 dyn / cm is selected to serve as base oil, gravure ink with the surface energy of 30-45 dyn / cm is selected to serve as surface oil, and a proper bottom oil gravure depth and a proper surface oil gravuredepth are selected; secondly, the bottom oil is printed on a printed material and cured; and finally, the surface oil is painted on the surface of the cured bottom oil and is cured. In the method, thegravure ink with the proper surface energy is selected to serve as the bottom oil and the surface oil, so that the surface oil can retract into particles on the bottom oil to achieve the great impression silk screen surface simulation effect while the requirement of gravure for fluidity of the ink is met. The properly selected gravure depths can meet surface effect requirements of different products. The idle gravure capacity is fully utilized, and the production efficiency is improved by 30% compared with that of an offset printing mode.

Description

technical field [0001] The invention relates to the field of large-impression printing, in particular to a method for realizing large-impression effects through gravure printing equipment. Background technique [0002] There are many printing processes in the packaging industry, especially the use of large-impression printing processes, which makes the product surface form small protrusions, which produce effects similar to silk screen matte and snowflakes, and the appearance of the product has a texture effect. If this process is used in conjunction with gold and silver cards and laser paper , can produce crystal clear, strong contrast between light and dark visual effects, with special pattern design, can produce regular and irregular logical light pattern effects, is widely used in the printing industry, but this process is currently limited to UV offset printing, in multi-color Groups have not been used on web gravure equipment. [0003] At present, the effective start-...

AI Technical Summary

Problems solved by technology

[0002] There are many printing processes in the packaging industry, especially the use of large-impression printing processes, which makes the product surface form small protrusions, which produce effects similar to silk screen matte and snowflakes, and the appearance of the product has a texture effect. If this process is used in conjunction with gold and silver cards and laser paper , can produce crystal clear, strong contrast between light and dark visual effects, with special pattern design, can produce regular and irregular logical light pattern effects, is widely used in the printing industry, but this process is currently limited to UV offset printing, in multi-color Set of web gravure equipment not yet used

[0003] At present, the effective start-up rate of the company's multi-color group web gravure printing equipment is low, resulting in waste of production capacity. Using gravure printing equipment for large-impression printing can solve the problem of tight offset printing equipment and low effective start-up rate of gravure printing equipment. Cost of production

However, the traditional gravure matte is to add coarser powder to the matte ink, and transfer it to the surface of the substrate through the gravure roller to form a raised and bright matte glass effect. Due to the existence of the powder, the During the printing process, the powder will be caught between the squeegee and the plate cylinder, which will easily cause the failure of the printing bars, seriously affect the product quality, and fail to meet the requirements of the large impression effect. Therefore, it is necessary to develop a gravure large impression process to solve the traditional Gravure printing faults caused by strip printing

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