Manufacturing method of multi-layer scanning gravure wood grain printing plate roll

Abstract

The invention discloses a manufacturing method for a multi-layer scanning gravure wood grain printing plate roller. The manufacturing method comprises the steps that firstly, a proper plank is selected to serve as a manuscript and subjected to preprocessing; secondly, the manuscript is placed on a scanner horizontal platform to be subjected to multi-layer scanning, at least five scanning images different in shadow effect are obtained, and the two scanning images are selected to serve as a gold powder edition color separation image and a silver powder edition color separation image; thirdly, the three to five scanning images are selected from the scanning images obtained in the second step to be synthesized, and a gradation individual image is obtained; fourthly, the gradation individual image is subjected to color separation, and a single-color edition color separation image is obtained; and fifthly, the single-color edition color separation image, the gold powder edition color separation image and the silver powder edition color separation image are subjected to color-separation drafting and serve as a basis, and accordingly carving of the multi-layer scanning gravure wood grain printing plate roller is conducted.

Description

technical field [0001] The invention relates to the technical field of printing plate manufacturing technology, in particular to a method for manufacturing a multi-layer scanning gravure wood grain printing plate roll. Background technique [0002] With the continuous improvement of living standards, consumers have higher and higher requirements for the appearance and quality of wood products. Therefore, solid wood products mainly made of natural log materials are very popular and occupy most of the consumer markets such as furniture and home decoration. Ordinary imitation wood grain paper is difficult to attract the attention of consumers. In order to reduce tree felling, protect the environment, use trees rationally, and change consumers' dependence on solid wood materials, modern industrial means are used to produce more natural, clear, three-dimensional and realistic imitation solid wood panels. The processing and synthesis of grain images have higher requirements. [...

AI Technical Summary

Problems solved by technology

It has the following disadvantages: 1. The pattern lacks contrast between light and dark, the level and tone changes are not rich, relatively flat, and the depth of field is shallow; 2. Due to the uniform lighting, it lacks the concave-convex relief effect of three-dimensional 3D and light and dark polarized light; 3. Due to the scanned original image The limitation of the original solid wood reflective effect is difficult to express

If you use the same scanned image and use the method of anti-shade image to extract the reflective plate, although it can play a certain light and shadow effect, the light and shadow effect is relatively monotonous and unnatural. It only strengthens the shallow light and shadow effect and will also affect the The expression of fine texture levels of wood grain

Since the reflective plate is used in the printing of gold and silver plates, it is limited by the lack of a special reflective scanning collection layer, resulting in poor results

At present, the technology of gravure wood grain plate-making to restore solid wood still needs to be improved, the three-dimensional effect of layering effect is relatively poor, and the simulation degree of light and shadow is not realistic enough.

Its final product can only replace low-end wood products