High-speed hot stamping varnish-type tipping paper electrochemical aluminum foil hot-melt adhesive and preparation method thereof

Abstract

The invention provides a high-speed hot-stamping gloss oil type tipping paper electrochemical aluminum foil hot melt adhesive and a preparation method thereof, and aims to solve the phenomena that anexisting hot melt adhesive is not compatible with a wax material with low surface energy and easily shelled. The hot melt adhesive is prepared from the following raw materials in parts by weight: 5-10parts of vinyl chloride-vinyl acetate-maleic anhydride terpolymer, 1-5 parts of aldehyde ketone resin, 1-5 parts of cellulose acetate butyrate, 1-5 parts of rosin modified resin, 0.1-0.5 part of a wetting agent, 1-5 parts of fumed silica, 50-80 parts of ethyl acetate and 1-5 parts of n-propyl acetate. According to the hot melt adhesive, the surface energy of hot melt adhesive can be greatly reduced under a melting condition, and the wetting and penetrating performance of hot melt adhesive on the low-surface-energy tipping paper base material can be effectively improved; resin is reasonably matched in the formula for mixing and modifying preparation, and initial adhesion and persistent adhesion of the hot melt adhesive can be taken into consideration, and the aim of firm adhesion and high-speed hot stamping can be achieved.

Description

technical field [0001] The invention relates to the field of hot-melt adhesives, in particular to a hot-melt adhesive for high-speed stamping varnish type tipping paper anodized aluminum foil and a preparation method thereof. Background technique [0002] Anodized aluminum hot stamping foil is a hot stamping material, mainly composed of base film layer, release layer, coloring layer, vacuum aluminized layer and hot melt adhesive layer. Among them, the base film layer is the carrier and support of other layers; the release layer is to provide the transferability of the base film layer and other layers; the coloring layer is a protective layer for displaying color and vacuum aluminized layer; It is to provide adhesion with the substrate, and different hot-melt adhesive layers can be used to achieve hot stamping of different substrates. Anodized aluminum hot stamping foil is transferred to the surface of the substrate by the principle of hot pressing, which has the functions o...

AI Technical Summary

Problems solved by technology

The hot-melt adhesive layer in the prior art is incompatible with waxy materials with low surface energy, and the surface energy under melting conditions is higher than that of varnish-type tipping paper, which cannot wet the substrate and fail to achieve the purpose of bonding, resulting in scalding The printing layer is difficult to attach or the adhesion is not strong, and it is easy to cause powder removal and other phenomena