High-gloss three-dimensional gilding method

Abstract

The invention relates to a high-gloss three-dimensional gilding method which comprises the following steps of; 1. providing a screen and silk-screen gilding continuous production line, wherein the silk-screen gilding continuous production line comprises a paper feeding device, a screen printing unit, a UV (ultraviolet rays) curing unit, a stamping unit and a paper delivery unit which are arranged successively; 2. the paper feeding device is used for providing a printing stock to the screen printing unit, the screen is used for performing primary gilding pulp screen-printing on the printing stock, so that a preset pattern to be gilded is formed, wherein the gilding pulp is oily UV printing ink; 3. the printing stock subjected to gilding pulp screen-printing is subjected to UV curing through the UV curing unit; 4. the printing stock subjected to UV curing continuously passes through the stamping unit to be subjected to primary gilding, so as to complete the gilding operation on the pattern to be gilded of the printing stock; and 5. the printing stock after gilding is delivered to the paper feeding device. In the gilding method, the oily UV printing ink is adopted as the gilding pulp, the high-gloss three-dimensional gilding effect can be realized on the surfaces of printed sheets composited with optical cement and dumb cement, various paper, plastic sheets and fiber slabs with different thicknesses, so that the demand on diversity in processing a base materials is met, and the on-line efficient and continuous gilding is realized.

Description

technical field [0001] The invention relates to a three-dimensional bronzing method, in particular to a high-gloss three-dimensional bronzing method for high-efficiency continuous production using oily UV ink as a process material. Background technique [0002] In recent years, with the improvement of people's requirements for the appearance and quality of commodity packaging, printing technology and packaging technology have made great progress, and post-press processing technology has achieved vigorous development. As for the processing part, the changes in the past few years have been even greater. The continuous emergence of new technologies, new processes and the combined use of various technologies has achieved better results in terms of gloss, three-dimensionality, metal feeling, and anti-counterfeiting performance of packaged printed matter after bronzing, especially at present, it is more and more widely used The advanced three-dimensional hot stamping technology m...

AI Technical Summary

Problems solved by technology

However, due to the certain stretchability of the paper, it is difficult to form a pattern at the base of the embossed part, and because generally thinner paper is relatively soft, the embossed part is easily deformed under pressure. Therefore, the three-dimensional pattern formed by bronzing is very difficult. It is difficult to maintain the three-dimensional effect for a long time

[0004] ZL200910190392.1 discloses a three-dimensional bronzing method. The bronzing paste used is water-based glue. After silk screen printing, it needs to be air-dried for a period of time before bronzing can be carried out. The required process time is long, which is not conducive to the realization of efficient wire stamping; The bronzing paste used is water-based glue, which has weak adhesion to the substrate. Therefore, this bronzing method cannot be applied to printed sheets coated with glossy glue, matte glue, plastic sheets and fiberboards and other impermeable closed substrates. Insufficient resistance; In addition, the bronzing method is prone to defects such as uneven surface, many pores formed by air bubbles, paste and stroke lines after silk screen printing.

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