Method for making local laser metal color on surface of printing material

Abstract

The invention discloses a method for making local laser metal color on the surface of a printing material, and aims to overcome the defects that the conventional whole laser embossing layer influences the local protruding visual effect of a printed matter, and the local laser method has deficient technical means, poor laser effect and low production efficiency. The technical scheme has the key points that: the method comprises the following steps of: coating a release agent on a specific film; printing image-text on a release layer; making the laser embossing layer on the image-text; plating aluminium on the laser embossing layer; gluing the aluminium plating layer; compounding the film and the printing material; peeling the film; and remaining the image-text, the laser embossing layer and the aluminium plating layer on the printing material; and the method is characterized in that: the step of making the laser embossing layer on the image-text comprises the substeps of: intagliating an area range needing the laser embossing layer on a gravure printing device on a cylinder; locally printing UV-cured gloss oil on the image-text; embossing laser grains on a UV-cured gloss oil area by using an embossing device; and curing the UV-cured gloss oil area by using a UV curing device to obtain the local laser embossing layer.

Description

technical field [0001] The invention relates to a special printing method, in particular to a method for making partial laser metallic color on the surface of a printing material by using a film printing transfer method. Background technique [0002] The film printing transfer method is currently a popular method in the printing and packaging industry to produce metallic graphics or non-graphics on the surface of printing materials. The steps are generally as follows: Oriented polypropylene film (OPP film) or polyethylene terephthalate Ester film (PET film) and other films→coat the release layer on the film→print graphics on the release layer→aluminize the entire surface of the graphics→coat the aluminum layer with glue→coat the glued side of the film Composite with printing material→peel off the top film→leave the aluminized layer and graphics on the printing material to achieve the purpose of printing transfer. In the middle of the step of printing graphics → aluminum pla...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing method of producing laser metallic color on the surface of the printing material by the film printing transfer method, the entire layer of laser embossing layer affects the prominent visual effect of some parts of the printed matter that need to be highlighted, in order to pursue a newer aesthetic printed matter, and The existing idea of ​​achieving partial laser effect is due to the lack of feasible technical means, poor laser effect, low production efficiency and does not meet the requirements of high-speed continuous operation. The method can overcome the defects of the prior art