Black high-gloss composite paper gravure online printing structure and printing method thereof

Abstract

The invention discloses a high-gloss transparent film black aluminum-plated composite paper gravure online printing structure and a printing method thereof. The printing structure comprises a back coating, a white card bottom layer, a calendered coating layer, a composite glue layer, an aluminum-plated layer, a black layer, a PET high-gloss film layer and a printing layer; the printing method comprises the steps of: carrying out double-sided corona treatment on the PET high-gloss transparent film; pre-coating the black bottom layer on the reverse side; carrying out vacuum aluminum plating to compound the PET high-gloss transparent film with bottom paper of which the surface is coated and calendered; and simultaneously thickening the back coating of the composite paper and sending to gravure equipment for online gravure printing to finally obtain a packaging material. According to the novel packaging material obtained by using the structure and method provided by the invention, the black layer of the black PET aluminum-plated composite paper is inside the PET film; the black layer structure can be protected by the PET film, so the novel packaging material is abrasion-resistant and scratch-resistant; scratches, stripping and the like are prevented during operation; and later processing operations are not affected.

Description

technical field [0001] The invention belongs to the technical field of packaging and printing, and relates to a gravure in-line printing structure of black high-gloss composite paper and a printing method thereof. Background technique [0002] High-transmittance PET composite film is a new type of packaging material with excellent physical and chemical properties, dimensional stability and transparency. It is widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging decoration, screen protection, Optical grade mirror surface protection and other fields. High-transmittance PET composite films are commonly used in daily life as explosion-proof films for automobiles, films for mobile phones and tablet computers, etc., but they are rarely used in small paper packaging printed matter, mainly because the composite process with paper is complicated and the production cost is relatively high. high. [0003] At pres...

AI Technical Summary

Problems solved by technology

High-transmittance PET composite films are commonly used in daily life as explosion-proof films for automobiles, films for mobile phones and tablet computers, etc., but they are rarely used in small paper packaging printed matter, mainly because the composite process with paper is complicated and the production cost is relatively high. high

[0003] At present, most of the ordinary black PET aluminized composite papers on the market are directly composited with white cardboard and PET aluminized, and then the background color is printed on the surface of the PET film (or the front side of the PET aluminized film is printed black first and then composited), so as to Obtain the black composite paper required by the customer, and finally carry out printing, hot stamping and other finishing processes on it. The black layer on the paper surface cannot be protected by PET film, and it is easy to produce scratches and strips during operation, which will affect the subsequent processing operations.

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