Method for carrying out three-dimensional printing by utilizing round-dot optical grating

Abstract

The invention discloses a method for carrying out three-dimensional printing by utilizing a round-dot optical grating. According to the technical scheme adopted by the invention, the key point of the method comprises the following steps: drawing a printed pattern by virtue of graphics software and platemaking, and offset-printing a colorful pattern and a local space pattern on the back surface of a film; and offset-printing UV base oil on the front surface of the film, and gravure-printing UV face oil through a gravure-printing roller, and the like. According to the invention, the printing method capable of realizing local three-dimensional printing effect does not need an optical grating plate, only needs a common transparent film, limitation on thickness and dimension of the transparent film is avoided, and 3D effect can be formed after printing, so that the cost is low, the operation is simple, and the flexibility is high. Common pre-printing process software is not needed to be used, additional investment is not needed, the popularization is easy, and the graphic processing is very simple.

Description

【Technical field】 [0001] The invention relates to a method for three-dimensional printing using dot gratings. 【Background technique】 [0002] Early images were presented in black and white (monochrome), and later turned into color, and now more emphasis is placed on 3D (three-dimensional) printing and even the realm of virtual reality. The technology of three-dimensional plane images was launched more than 30 years ago, but it was hindered by material limitations and key technologies that could not be broken through. [0003] At present, the more popular three-dimensional printing in the world uses lenticular lenticular printing, which uses a principle of simulating the distance between human eyes to produce space differences, recording pixels at different angles and levels on photosensitive materials, and then using gratings Combination of materials presents three-dimensional effects and even virtual reality on two-dimensional plane images. Through this approach, people ca...

AI Technical Summary

Problems solved by technology

[0004] 1. Prefabricated optical cut-out sheets are required, and the optical cut-out sheets are limited in thickness and size, resulting in high cost and low flexibility;

[0005] 2. Professional pre-press processing software is required, which requires a large investment, is not easy to promote, and the graphics processing is complicated;

[0006] 3. The packaging box must be full of grating films, which cannot achieve partial 3D effects;

[0007] 4. Printing and overprinting are very precise and require high equipment, and the usual machine maintenance costs are high, so a dedicated machine is required;

[0008] 5. Operators are required to have considerable professional experience

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