Production process for forming frosted effect on surfaces of gold and silver paperboards

Abstract

The invention provides a production process for forming a frosted effect on the surfaces of gold and silver paperboards. The process adopts a frosted press plate with reticulate pattern pits engraved on the surface to directly emboss the surface of a gold or silver paperboard, the depth of the reticulate pattern pits of the frosted press plate is 60Mu m to 90Mu m, the embossing temperature is 50 DEG C to 150 DEG C, and the pressure is 5Mpa to 10Mpa. The production process does not need ink printing and any forms of heat drying, does not produce pungent smell, meets the requirement on environment-friendliness and energy saving, and also thoroughly solves the problems of color cracking and cracking during product die-cutting; in addition, the production process not only can emboss the whole gold or silver paperboard but also can emboss part of the gold or silver paperboard, moreover, while the production process overcomes various defects of the conventional frosting silk-screen process, the production efficiency is greatly increased, the capacity of a single machine is eight times higher than the capacity of the conventional frosting silk-screen process, consequently, the production pressure of the process is relieved, and the requirement on the formation of the frosted effect on the surfaces of gold and silver paperboards and mass production is met.

Description

technical field [0001] The invention relates to a post-press processing technology in the packaging and printing industry, in particular to a production process for forming a frosted effect on the surface of a printed matter, and more particularly to a production process for forming a frosted effect on the surface of a gold and silver cardboard-wrapped printed matter craft. Background technique [0002] Aluminized film gold and silver cardboard is a kind of packaging sheet with strong light or mirror effect formed by compounding or transferring an aluminized film on the surface of various cardboards. In order to make the surface of gold and silver cardboard have a matte effect and make it more high-grade, the previous practice is to screen-print UV matte ink on the surface of gold and silver cardboard, and then dry it through ultraviolet light. This process of using screen printing UV matte ink to achieve the matte effect has the following disadvantages: (1) Because the UV ...

AI Technical Summary

Problems solved by technology

This process of using screen printing UV matte ink to achieve the matte effect has the following disadvantages: (1) Since the UV matte ink contains photosensitizers, these photosensitizers often produce irritating odors during the ultraviolet drying process and affect environmental protection, and the photosensitizers in the product There are often residues in packaging products, which may easily lead to excessive VOCs in packaging products, or even scrapped in batches; (2) UV matte ink for silk screen printing has poor adhesion and flexibility, and it is easy to burst when die-cutting; (3) Low production efficiency, a fully automatic The screen printing machine can only produce 2200 sheets per hour, which is about 20m / min, and the production capacity cannot meet the production requirements of large quantities.

The Chinese invention patent application with the patent number 201010298836.6 and the title of the invention as "a vacuum aluminized frosted cardboard and its preparation method" discloses a preparation method of a vacuum aluminized frosted cardboard. body, and then use a coater to coat the frosted coating mixture on the smooth surface of the cardboard, and after curing, form a frosted coating layer with a frosted effect that is firmly combined with the cardboard, and finally the cardboard with the frosted coating layer Send it to the vacuum aluminum plating system for aluminum plating to obtain vacuum aluminum-coated matte cardboard; although this method can reduce solvent volatilization and solvent residue in printed products, it still needs to coat the matte layer. The process is complicated and difficult to control, and it is impossible For individualized spot scrub effects

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