3D pattern printing method

Abstract

The invention provides a 3D pattern printing method which comprises the following steps of first, manufacturing a multi-angle dynamic raster pattern, second, printing an information dielectric layer in a gravure or flexible mode, and third, coining a raster. The 3D pattern printing method has the advantages that offset printing or gravure printing is combined with the coining information dielectric layer to form the raster to achieve 3D pattern conversion, and the method can be achieved on a packaging box through direction printing.

Description

technical field [0001] The invention relates to the field of printing, in particular to a printing method of 3D patterns. Background technique [0002] Multi-angle dynamic patterns can be easily realized through 3D printing technology. 3D three-dimensional printing technology has developed very fast in recent years. 3D three-dimensional printing breaks the flat, static, and single effect of traditional printed matter, adds vitality to printed matter, and makes it stand out in the fiercely competitive market. [0003] There are two ways to print 3D three-dimensional patterns or multi-angle dynamic patterns: 1. Print the three-dimensional pattern on paper or other materials first, and then compound the lenticular sheet; 2. Print the three-dimensional pattern on the lenticular sheet directly. [0004] However, 3D printing technology is difficult to apply in the packaging industry. The main reasons are as follows: 1. At the present stage, 3D printing is realized by lenticular s...

AI Technical Summary

Problems solved by technology

[0004] However, 3D printing technology is difficult to apply in the packaging industry. The main reasons are: 1. At the present stage, 3D printing is realized through grating stereo imaging technology, that is, grating sheets are required.

2. The requirements for printing accuracy and grating composite accuracy are quite high, and the reject rate is high

The thickness of the lenticular film is far more than that of general packaging materials (such as packaging paper, which is generally less than 250g / ㎡, and the thickness is about 0.25mm), so it is not suitable for packaging

4. It is quite difficult to form the folding box of the lenticular sheet

5. Partial production on the packaging box is quite difficult: it cannot be accurately registered; the thickness is inconsistent with other parts that have not been produced, so it is not suitable for packaging

6. Not suitable for mass production

7. The cost is much greater than paper

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