Laser alumite stamping foil with controllable peel strength and preparation method thereof

Abstract

The invention relates to a holographic anti-counterfeit alumite material used in the printing industry, especially to a laser alumite stamping foil with controllable peel strength and a preparation method thereof. The invention provides the laser alumite stamping foil with the advantages of capacity of bearing alumite laser anti-counterfeit information, adjustable peel strength of a coating, high resistance to heat, wear, weather and scratches and suitability for a subsequent procedure of single-plate/seamless molding and the preparation method thereof. The laser alumite stamping foil comprises, by mass, 10 to 15 parts of a thermoplastic hard acrylic resin, 3 to 6 parts of a thermoplastic soft acrylic resin, 1 to 11 parts of cellulose ester, 80 to 95 parts of a solvent and 0.1 to 0.2 part of an auxiliary agent. The laser alumite stamping foil can be directly fed into a machine for coating, thereby realizing energy saving and emission reduction to be realized; the peel strength of the coating is adjusted through changing of the addition amount of cellulose ester, the peel strength is reduced when the usage amount of cellulose ester is increased, and the peel strength is allowed to change in a range of 2 to 15 KN/m; the laser electrochemical aluminum stamping foil can meet requirements on peel strength by different hot stamping substrates and different hot stamping processes and has a wide application scope.

Description

technical field [0001] The invention relates to an anodized aluminum material for the holographic anti-counterfeiting printing industry, in particular to a laser anodized aluminum hot stamping foil with controllable peeling force and a preparation method thereof. Background technique [0002] At present, holographic anti-counterfeiting hot stamping film has been widely used in the packaging field. Compared with traditional printing technology, it has bright colors, dynamic and anti-counterfeiting functions. For the production and processing of laser anodized aluminum, it includes hot stamping, transfer, compounding, Labeling, etc., the traditional holographic anti-counterfeiting hot stamping film usually consists of a base film layer, a separation layer, an information layer, an aluminum layer and an adhesive layer. However, with the rapid development of the packaging industry and the widespread use of holographic anti-counterfeiting products, it was originally in Hot stampi...

AI Technical Summary

Problems solved by technology

However, due to the different types, chemical structures, and film-forming mechanisms of the separation layer, it is difficult to find out the relationship between its concentration and the peeling force of the anodized aluminum film tape, and it is easily affected by factors such as the coating anilox roller and temperature, so that the separation layer is coated. It is difficult to control the amount of wet coating, a

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