Endless paper gravure press large-area frosting and printing technology

Abstract

The invention discloses a large-scaled sand-ground printing technique by using a web-fed gravure press, which relates to a so-called decorative printing method for sand-ground printing. The technique has special technological measures that: (1) electronic or laser carving gravure is adopted; (2) colorless and transparent one-component UV light-curring ink is chosen to be used, with the solvent resin being pre-polymer acrylic acid, and the particle diameter of the chosen ink is 15 to 30 Mum; (3) the viscosity of the chosen ink is 45 to 65 seconds;(4) sand-feeling replenisher is supplemented when the stereoscopic impression of the printed product is too strong; (5) the gravure press is provided with colorless and transparent one-component UV light-curring ink by adopting pneumatic pump non-continuity; (6) the gravure press is additionally provided with a UV drying system. The invention provides a production method by using the gravure press to carry out large-scaled sand-ground effect printing in high speed, which has the advantages of high production efficiency, good sand-feeling consistency and stable product quality.

Description

technical field [0001] The present invention relates to a decorative printing method called matte printing, especially a printing method that can obtain a large-area matte effect by using a gravure printing machine and using web printing. Background technique [0002] Matte printing is to print a layer of transparent UV frosted ink on a substrate with mirror luster, which is cured by UV (ultraviolet light) to form a rough surface like frosted glass, so it is called frosted printing. Because the pattern obtained by this kind of printing is very similar to the effect of metal corrosion, it has a special rough feeling, so it is also called imitation metal etching printing. In the prior art, matte printing is almost all printed by silk screen printing technology. In the Chinese patent application with the application number 2005100325517 titled "Large-area matte and mirror light-changing anti-counterfeiting effect patterns", the technology of silk screen printing is adopted. Th...

AI Technical Summary

Problems solved by technology

The production speed of silk screen printing is slow, the precision is poor, and the quality is unstable

Large-area matte effect printing is prone to the problem of "flower board"

According to the applicant's investigation, there is no process of using a web gravure printing machine to carry out large-area matte printing in the prior art

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