Process for UV printing of golden or silver patterns and application thereof

Abstract

The invention provides a process for UV printing of golden or silver patterns and application thereof. The process specifically comprises the following steps of S1, printing a bottom layer; S2, powdering treatment; S3, powder removal treatment; and S4, carrying out gloss oil sealing treatment. According to the process for UV printing of the golden or silver patterns, viscous ink and non-viscous light ink are adopted to be alternately and mutually matched for use, gold and silver pearl powder can be effectively adhered, the glossiness is high, the color persistence is long, the light resistance and the heat-proof and moisture-proof performance are excellent, and the texture grade of a product can be improved.

Description

technical field [0001] The invention relates to the field of inkjet printing, in particular to a process for UV printing gold or silver patterns and its application. Background technique [0002] As a new type of printing, inkjet printing has the advantages of high efficiency and precision, and is widely used in the advertising industry. Especially with the rise of UV printing in recent years, printing applications have gradually developed to handicrafts and building materials. Handicrafts and artworks are often expressed in gold and silver. Its noble, festive and religious colors, but the gold and silver patterns have not been able to be realized, and can only be realized by the bronzing method, but the bronzing cannot achieve the performance of precise alignment and fine patterns. [0003] After research, it is impossible to directly print gold and silver colors, because it is impossible to make gold and silver inks. This is because no matter whether any gold or pearl powd...

AI Technical Summary

Problems solved by technology

[0002] As a new type of printing, inkjet printing has the advantages of high efficiency and precision, and is widely used in the advertising industry. Especially with the rise of UV printing in recent years, printing applications have gradually developed to handicrafts and building materials. Handicrafts and artworks are often expressed in gold and silver. Its noble and festive and religious colors, but gold and silver patterns have not been able to be realized, and can only be realized by hot stamping, but hot stamping cannot achieve accurate alignment and fine pattern performance

[0003] After research, it is impossible to directly print gold and silver colors, because it is impossible to make gold and silver inks. This is because no matter whether any gold or pearl powder is ground to less than 5 microns, due to the optical principle of refraction, ink will not be produced. The phenomenon of brightening, but the printing ink head is getting finer and finer, and the nozzle hole of the ink head is getting finer and finer. The most commonly used inkjet heads in the market are Epson, Ricoh, Toshiba and Kyocera. Moreover, we are constantly pursuing finer nozzle holes and finer ink droplets. The substances contained in the ink must be below 300 nanometers to be printed normally, so particles of 5 microns cannot be achieved by inkjet printing, so gold and silver are the best. unprintable

In addition, Japan once produced silver ink, but the printed silver is not real, without the luster of real metal, and it is easy to plug and the price is extremely expensive. 1L costs 1600 yuan, which cannot be widely used.