Coloring layer coating suitable for silver alumite hot stamping foils and preparation method thereof

Abstract

The invention discloses coloring layer coating suitable for silver alumite hot stamping foils and a preparation method thereof. Paint films of silver alumite hot stamping foils in the prior art are prone to efflorescence; in gold stamping, the defects of gold flying, powder falling and the like are prone to happening; thus, hot stamping quality and a production efficiency are affected. The coloring layer coating disclosed by the invention is prepared from the following raw materials in parts by weight: 15 to 25 parts of thermoplastic methacrylic resin, 1 to 5 parts of chloride-acetate resin, 1to 8 parts of styrene-maleic anhydride copolymer, 1 to 10 parts of cellulose acetate butyrate, 1 to 10 parts of methyl isobornyl acrylate, 1 to 5 parts of impact modifier and 50 to 70 parts of solvent. According to the coloring layer coating disclosed by the invention, the impact modifier is added into the formula ingredients, so that paint film toughness is effectively improved; meanwhile, the coloring layer coating has the characteristics of moderate viscosity, good adhesion with aluminum layers, simple production technology easy to control, stable quality, convenience in long-time storageand the like; a coloring layer paint film of alumite containing the coloring layer coating has the characteristics of high glossiness, large hardness, toughness, wear resistance and the like.

Description

technical field [0001] The invention relates to coatings, more specifically to a colored layer coating suitable for silver anodized aluminum hot stamping foil and a preparation method thereof. Background technique [0002] As the main raw material of special printing-hot stamping process, anodized aluminum hot stamping foil has been widely used in hot stamping and decoration on the surface of paper products, plastic products, leather products, wood products, etc. It is mainly composed of base film, release type, coloring, vacuum It is composed of five layers of aluminum plating and adhesive backing. [0003] The preparation process of anodized aluminum hot stamping foil is as follows: first coat the release layer coating and the coloring layer coating on the polyester film base, vacuum aluminum plating after drying, and then coat the adhesive layer coating, after drying, separate Cut and re-rolled. Among them, the coloring layer is the key coating, which not only determine...

AI Technical Summary

Problems solved by technology

When the "flying gold" and "dropping powder" are serious during the bronzing process, the fallen gold powder will be adsorbed and accumulated on the surface of the engraved area of ​​the bronzing plate, affecting the thermal conductivity and embossing area of ​​the bronzing plate, thus reducing the hot stamping effect. The clarity of the printed pattern, in severe cases, the hot stamping plate must be scrubbed every time it is hot stamped

Frequent cleaning of the hot stamping plate will not only seriously affect the production efficiency, but also directly affect the hot stamping quality of the product

If the gold powder pollutes the entire surface of the printed product, the printed product needs to be reworked and cleaned, which also affects the production efficiency, and in severe cases, the printed product will be scrapped

Therefore, printing companies are paying more and more attention to the situation of "flying gold" and "off powder", and gradually established stricter testing standards and methods. The existing technology can no longer meet the demand