Holographic dot printing method

Abstract

The invention relates to the holographic anti-counterfeiting printing industry, in particular to a holographic dot printing method. The invention provides a printing method which can realize laser effect patterns on accurate positions and also contain delicate patterns printed by the printing machine with superimposed printing, large range, high accuracy and high printing quality. The holographic dot printing method comprises the following steps of: adopting paper as a base material and adopting the printing machine as printing equipment; manufacturing a printing and color-brightening screen; printing common printing colors; printing UV (Ultraviolet) adhesive by a color class of the printing machine; gluing a laser film and the paper printed with the UV adhesive; adopting a method with irradiation of a UV lamp for UV curing, removing a thin-film layer, coating a holographic laser layer on a UV adhesive layer of dots in a sticky manner, and obtaining common printing colors at the dot positions without the UV adhesive; and manufacturing holographic laser printing paper. According to the method provided by the invention, the superimposition of color and brightness is carried out microcosmically, the surface brightness is improved, the surface appearance is excellent, the positioning is accurate, the printing accuracy is high, and the printing and laser effects are superimposed in persistence of vision to generate a new visual color.

Description

technical field [0001] The invention relates to a holographic anti-counterfeiting printing industry, in particular to a holographic dot printing method. Background technique [0002] At present, from the perspective of China's printing and packaging market, the scope of use of special paper is increasing. There are various types of special paper, and various new special papers are also emerging. Plate printing has also become a common method of printing. The precision and richness of some screen printing make people amazed. The fineness of printing depends on the density of dots, which is usually expressed as the number of grids per square inch of the parts that make up the pattern. How many pixels are used to represent the pattern composed of square or circular pixels, and after partial enlargement, it will be found that it is composed of countless dots of different sizes. Since the printed matter pattern can be composed of dots, printing Machine printing is to print patte...

AI Technical Summary

Problems solved by technology

[0002] At present, from the perspective of China's printing and packaging market, the scope of use of special paper is increasing. There are various types of special paper, and various new special papers are also emerging. Plate printing has also become a common method of printing. The precision and richness of some screen printing make people amazed. The fineness of printing depends on the density of dots, which is usually expressed as the number of grids per square inch of the parts that make up the pattern. How many pixels are used to represent the pattern composed of square or circular pixels, and after partial enlargement, it will be found that it is composed of countless dots of different sizes. Since the printed matter pattern can be composed of dots, printing Machine printing is to print patterns composed of pattern points on dots. Because the printing machine can achieve high precision at present, it can complete exquisite high-quality printed matter. However, printing uses materials such as ink to achieve flexible printing by the printing machine. Soft printing can't print the holographic laser pattern that has been made, exquisite, and rich in information on the paper like the hot stamping machine. The hot stamping machine used in the past uses the transfer method to transfer the pattern. system, as well as coating transfer method, etc., but if these methods are applied to paper, that is, the pattern transfer of paper, it is difficult to achieve the level of precision, high precision and perfection like printing on a printing machine, and these Both methods use secondary positioning, and the area of ​​the transfer pattern is limited by the surface processing shape of the bronzing plate

Is there a method that can be realized in a precise position, with a laser effect pattern, and a method of superimposing and overprinting the exquisite patterns printed by the printing machine, so as to solve the problem of exquisite hot stamping patterns in the current production technology. The limitation of the small printing area, as well as the difficulty of accurately positioning and transferring defects on the paper, and the method of producing large-format, high-precision, high-quality, and high-security prints are problems that engineers and technicians urgently need to solve; there are also laser patterns. There is no reflected light in the printing color. How to apply the laser color as a printing color in the printing of the printing machine and become a base color in the printing color of the printing machine, which will bring more richness to the printing. Color capability, and the amount of information contained in the printed content will be greatly increased. How to increase the printing with laser anti-counterfeiting effect pattern colors on the printing machine, that is, how to print bright colors containing laser anti-counterfeiting effect pattern colors, how to combine laser patterns and bright colors with ordinary Printing patterns on paper together is an urgent problem for engineers and technicians in this industry to solve

In the prior art, there is no case of the method of the present invention containing such a large-area transfer of bright colors