A kind of degradable waterproof aluminum foil paper

Abstract

The invention discloses a degradable waterproof aluminum foil paper, which comprises a base paper and an aluminum foil layer. The aluminum foil layer is coated with a layer of aluminum foil on the surface of the base paper by a direct evaporation method, and then a layer of 5-10um is compounded on the surface of the aluminum foil layer. The degradable waterproof film; the preparation process of the aluminum foil layer is as follows: (1) uniformly spray a layer of degradable hot melt adhesive on one side of the base paper, and then place the coated base paper in a vacuum aluminum coating machine for aluminum transfer , the aluminum layer and the paper base are compounded by hot melt adhesive, and calendered with a calender; (2) Use a coating roller to evenly coat the degradable waterproof colloid on the surface of the aluminum foil layer, and then heat the aluminum foil paper at 120 ° C Dry it in a constant temperature blast dryer for 15 seconds, and then use a calender to perform calendering. In the invention, aluminum is directly coated on the surface of the base paper, and then a degradable waterproof film is compounded on the surface of the aluminum foil layer, so that the prepared aluminum foil paper is easy to degrade.

Description

technical field [0001] The invention belongs to the technical field of aluminum foil paper and relates to a degradable waterproof aluminum foil paper. Background technique [0002] With the rapid development of China's tobacco industry, the packaging as an important part of cigarettes has been paid more and more attention by tobacco producers. However, the more consumption, the more waste is produced, and the greater the pollution to the environment, cigarettes Aluminum foil paper used for moisture-proof packaging has been widely used in various fields. The aluminum foil paper of the cigarette box in the prior art is just a composite of ordinary paper layer and aluminum foil, or a composite resin material on the surface of the aluminum foil. Moisture absorption, mildew, anti-bacteria, etc. are prone to occur in the environment, which reduces the storage period of cigarettes, especially after the cigarettes are unpacked, it is very easy to get moisture and reduce the quality...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that aluminum foil paper is difficult to degrade and easy to absorb moisture and become moldy, the present invention provides a degradable waterproof aluminum foil paper. The method adopts the method of directly aluminizing the surface of the base paper, and then compounding a degradable waterproof film on the surface of the aluminum foil layer. The prepared aluminum foil is easy to degrade