Vacuum metallizing metallic paper with embossing effect and production method thereof

Abstract

The invention relates to a multi-layer packaging material, and particularly relates to a vacuum metallizing metallic paper packaging material and a production method thereof. The packaging material comprises a body paper layer, a precoating resin layer, a metal layer, a color layer and a forming resin layer. The production process is as follows: embossing to form an embossed film; sequentially paving the precoating resin layer, the metal layer and the color layer on the body paper layer to obtain colored metallizing metallic paper; compounding the embossed film with the colored metallizing metallic paper to obtain the forming resin layer; stripping the embossed film on the surface of the composite metallized paper, and preparing to obtain gold vacuum metallizing metallic paper. The vacuum metallizing metallic paper packaging material and the production method thereof have the following beneficial effects that the compounding speed of the vacuum metallizing metallic paper with embossing effect is high; the embossing effect is vivid; the vacuum metallizing metallic paper with the embossing effect, produced by adopting the method is good in barrier property.

Description

technical field [0001] The invention relates to a composite packaging material, in particular to a vacuum sprayed metal paper packaging material and a manufacturing method thereof. Background technique [0002] Vacuum sprayed metallized paper has been unanimously recognized by consumers for its environmental friendliness, good printing adaptability, and bright appearance, but it is slow in replacing the currently widely used metal foil composite paper. In industries that use metal foil composite paper packaging a lot, such as chewing gum and tobacco packaging, the market share of vacuum sprayed metal paper is very low. The reason is that the following problems have not been well resolved: [0003] (1) The embossing effect of vacuum sprayed metal paper is not as good as that of metal foil composite paper. The metal foil thickness of the metal foil composite paper is between 6um-30um, and the metal foil is the main carrier of the embossing effect. In view of the good metal d...

AI Technical Summary

Problems solved by technology

The metal layer of vacuum sprayed metal paper is very thin, only 20nm-50nm, and the embossing effect is mainly carried by the paper. Because the paper is elastic and brittle, it cannot be formed well during the embossing process, and the strokes of the pattern text are thick or fine. The stroke shrinks and deforms, and the decorative effect cannot be fully satisfactory

[0004] (2) For the embossed products produced by the existing embossing process, during the embossing process, the concave and convex pattern on the embossing roller destroys the aluminum layer together with the coating layer and the base paper layer, resulting in two insurmountable shortcomings: on the one hand, it makes the barrier The air permeability is very poor, and the air permeability is large, which weakens the moisture-proof effect of the packaging material and the function of maintaining the characteristic smell of the product itself

On the other hand, the mechanical properties of the product, including tensile strength and bending stiffness, also deteriorate accordingly, increasing the rate of paper breaks in the later use process and increasing the loss of the production process

[0005] (3) The production speed of the existing embossing technology is slow, generally within the speed range of 35m / min-85m / min, while the production speed of the coating equipment and aluminum plating equipment supporting the vacuum sprayed metallized paper has been increased to 170m / min min-800m / min, the production speed of the embossing process has become a bottleneck restricting the development of the vacuum metallized paper industry and needs to be improved urgently

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