Preparation process of aluminum foil composite material

Abstract

The invention discloses a preparation process of an aluminum foil composite material. The process comprises the following specific steps: feeding and intensively stirring activated carbon powder, silver powder and water absorption powder to obtain mixed powder; and adding the mixed powder into a polyvinyl alcohol solution, and stirring in a water bath. According to the preparation process of the aluminum foil composite material, a mixed layer capable of adsorbing different colors and peculiar smells and having a sterilization effect can be formed on the surface of aluminum foil, food can be better packaged, the use effect is better, the aluminum foil is not prone to being broken and pinholes are not prone to being formed when the prepared aluminum foil composite material is folded, in addition, the strength of the aluminum foil composite material is improved, so that the aluminum foil composite material is not prone to damage, a diameter of a pressing roller is always smaller than that of a film roll during rolling, a wrap angle formed by the prepared aluminum foil composite material film and the pressing roller is reduced, rolled air is less, the film roll is neat, the excellent barrier property can be kept, and the use effect is better.

Description

technical field [0001] The invention relates to the technical field of flexible packaging, in particular to a preparation process of an aluminum foil composite material. Background technique [0002] Because of its excellent characteristics, aluminum foil is widely used in food, beverages, cigarettes, medicines, household daily necessities, etc., and is usually used as its packaging material. The development prospects of aluminum foil packaging are very broad; composite aluminum foil packaging has the advantages of high barrier performance, light weight, anti-ultraviolet, and long shelf life at room temperature. With the progress, people's requirements for aluminum foil composite materials are getting higher and higher, resulting in the existing preparation methods of aluminum foil composite materials can no longer meet the needs of users; [0003] There are certain disadvantages when the existing aluminum foil composite material preparation method is used. First, the entir...

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Problems solved by technology

The development prospects of aluminum foil packaging are very broad; composite aluminum foil packaging has the advantages of high barrier performance, light weight, anti-ultraviolet, and long shelf life at room temperature. With the progress, people's requirements for aluminum foil composite materials are getting higher and higher, resulting in the existing preparation methods of aluminum foil composite materials can no longer meet the needs of users;

[0003] There are certain disadvantages when the existing aluminum foil composite material preparation method is used. First, the entire production process of the existing aluminum foil composite material preparation method is relatively complicated, and the aluminum foil composite material produced has a single function and the use effect is not good. Secondly, the produced aluminum foil During the winding process of the composite material, due to the continuous increase of the volume between the film rolls, there will be uneven force during winding, and a lot of air will be involved, which will cause the aluminum foil composite material to wrinkle and make the barrier of the aluminum foil composite material The performance deteriorates and does not meet people's requirements for use. Therefore, we propose a preparation process for aluminum foil composite materials

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