Manufacturing method of gravure roller capable of printing three-dimensional effect

Abstract

The invention discloses a manufacturing method of a gravure roller capable of printing a three-dimensional effect, and the method comprises the following steps that: a computer image processing technology is applied to analyze the data of an image file which is scanned from an original pattern; the image data which can highlight the three-dimensional effect can be determined according to the content of an image; an image color separation technology is adopted to extract the image data which can highlight the three-dimensional effect, and the data is made into the image file; the image is carved on the gravure roller through an electronic carving machine; and finally mesh holes which are carved on the gravure roller and lined into the pattern are etched to required depths, and the gravure roller capable of printing the three-dimensional effect is manufactured by chrome plating. After the gravure roller which is manufactured through the method prints transparent ink onto the surface of a plane pattern which is printed from an original, the pattern can show a significant three-dimensional visual effect and intense concave and convex texture for touching.

Description

technical field [0001] The invention relates to the technical field of gravure printing plate rolls, in particular to a method for manufacturing a gravure plate roll capable of printing three-dimensional effects. Background technique [0002] Gravure printing is a kind of printing process, which has the advantages of thick ink layer, bright color, high saturation, high and stable printing quality, fast printing speed, and can truly restore the effect of the original manuscript. In foreign countries, gravure printing is used in fine publications such as magazines, and is also used in fields such as banknotes, packaging printing, and decorative materials. In China, gravure printing is mainly used in flexible packaging, paper packaging, wood grain decoration, leather materials, etc. With the development and widespread use of water-based gravure inks, gravure printing has become an important printing technology that meets environmental protection requirements and is used in mor...

AI Technical Summary

Problems solved by technology

[0003] At present, the patterns of furniture surface decoration materials are mainly printed by gravure printing technology. There are already some products with three-dimensional effect patterns printed on the market, but there are generally disadvantages such as unobvious three-dimensional effect and poor touch feeling.

Gravure printing products are produced by multiple overprinting of various colors (such as three-color three-time overprinting). The plate rolls of each color of the gravure printing are arranged with an array of cells forming a pattern. The cross-sectional shape of the cells is V. type, the depth is usually 55μm~65μm, the amount of ink storage is small, and the printed ink layer is thinner. The overprinted product is bright in color, true to the original, and the ink layer is thick, but it is only a flat pattern without a three-dimensional effect; if in When making the plate roll, the depth of the cells on the plate roll of each color is deepened to 100 μm or even deeper. Although a certain degree of three-dimensional effect can be printed, but because the ink layer of each color is thicker, various colors overlap. It cannot completely permeate and mix with each other, so bright colors cannot be superimposed, resulting in a decrease in color luster, inaccurate hue, and the original pattern cannot be truly restored, and the wear resistance and uneven feel are poor.