Degradable waterproof aluminium foil paper

Abstract

The invention discloses degradable waterproof aluminium foil paper which comprises base paper and an aluminium foil layer. The aluminium foil layer is obtained by plating a layer of aluminium foil on the surface of the base paper by adopting a direct vapour plating method, and then a layer of degradable waterproof film with a specification of 5 to 10mum is compounded on the surface of the aluminium foil layer. The aluminium foil layer is prepared by the following preparation process of: (1) uniformly spraying a layer of degradable hot melt adhesive on one surface of the base paper, then placing the coated base paper in a vacuum aluminizing machine to carry out aluminizing, compounding an aluminized layer and the base paper by the hot melt adhesive, and carrying out press-polishing by a press-polishing machine; (2) uniformly coating the surface of the aluminium foil layer with degradable waterproof colloid by a coating roller, then drying the aluminium foil paper in an electric heating constant-temperature fan dryer with a temperature of 120 DEG C for 15s, and then carrying out press-polishing by the press-polishing machine. According to the degradable waterproof aluminium foil paper disclosed by the invention, aluminizing is directly carried out on the surface of the base paper, and then the degradable waterproof film is compounded on the surface of the aluminium foil layer, so that the prepared aluminium 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...

Examples

Embodiment 1

[0017] A degradable waterproof aluminum foil paper, including 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 direct evaporation method, and then a layer of 5-10um degradable waterproof film is compounded on the surface of the aluminum foil layer ;

[0018] The aluminum foil layer preparation process is as follows:

[0019] (1) Aluminum plating on the surface of the base paper: uniformly spray a layer of degradable hot melt adhesive on one side of the base paper, wherein the colloid is prepared by adding 10% starch to polylactic acid, and then place the coated base paper in Vacuum aluminum coating machine carries out aluminum crossing, the aluminum crossing layer and the paper base are compounded by hot melt adhesive, and calendered with a calender;

[0020] (2) Composite degradable waterproof film on the surface of the aluminum foil layer: use a coating roller to evenly coat the degr...

Embodiment 2

[0022] A degradable waterproof aluminum foil paper, including 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 direct evaporation method, and then a layer of 5-10um degradable waterproof film is compounded on the surface of the aluminum foil layer ;

[0023] The aluminum foil layer preparation process is as follows:

[0024] (1) Aluminum plating on the surface of the base paper: uniformly spray a layer of degradable hot melt adhesive on one side of the base paper, wherein the colloid is prepared by adding 13% starch to polylactic acid, and then place the coated base paper on Vacuum aluminum coating machine carries out aluminum crossing, the aluminum crossing layer and the paper base are compounded by hot melt adhesive, and calendered with a calender;

[0025] (2) Composite degradable waterproof film on the surface of the aluminum foil layer: use a coating roller to evenly coat the degr...

Embodiment 3

[0028] A degradable waterproof aluminum foil paper, including 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 direct evaporation method, and then a layer of 5-10um degradable waterproof film is compounded on the surface of the aluminum foil layer ;

[0029] The aluminum foil layer preparation process is as follows:

[0030] (1) Aluminum plating on the surface of the base paper: uniformly spray a layer of degradable hot melt adhesive on one side of the base paper, wherein the colloid is prepared by adding 15% starch to polylactic acid, and then place the coated base paper on Vacuum aluminum coating machine carries out aluminum crossing, the aluminum crossing layer and the paper base are compounded by hot melt adhesive, and calendered with a calender;

[0031] (2) Preparation of degradable waterproof colloid: Add 33g of oxidized starch to 100mL of water, heat to 90°C for gelatinization ...

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...

Examples

Embodiment 1

[0017] A degradable waterproof aluminum foil paper, including 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 direct evaporation method, and then a layer of 5-10um degradable waterproof film is compounded on the surface of the aluminum foil layer ;

[0018] The aluminum foil layer preparation process is as follows:

[0019] (1) Aluminum plating on the surface of the base paper: uniformly spray a layer of degradable hot melt adhesive on one side of the base paper, wherein the colloid is prepared by adding 10% starch to polylactic acid, and then place the coated base paper in Vacuum aluminum coating machine carries out aluminum crossing, the aluminum crossing layer and the paper base are compounded by hot melt adhesive, and calendered with a calender;

[0020] (2) Composite degradable waterproof film on the surface of the aluminum foil layer: use a coating roller to evenly coat the degr...

Embodiment 2

[0022] A degradable waterproof aluminum foil paper, including 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 direct evaporation method, and then a layer of 5-10um degradable waterproof film is compounded on the surface of the aluminum foil layer ;

[0023] The aluminum foil layer preparation process is as follows:

[0024] (1) Aluminum plating on the surface of the base paper: uniformly spray a layer of degradable hot melt adhesive on one side of the base paper, wherein the colloid is prepared by adding 13% starch to polylactic acid, and then place the coated base paper on Vacuum aluminum coating machine carries out aluminum crossing, the aluminum crossing layer and the paper base are compounded by hot melt adhesive, and calendered with a calender;

[0025] (2) Composite degradable waterproof film on the surface of the aluminum foil layer: use a coating roller to evenly coat the degr...

Embodiment 3

[0028] A degradable waterproof aluminum foil paper, including 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 direct evaporation method, and then a layer of 5-10um degradable waterproof film is compounded on the surface of the aluminum foil layer ;

[0029] The aluminum foil layer preparation process is as follows:

[0030] (1) Aluminum plating on the surface of the base paper: uniformly spray a layer of degradable hot melt adhesive on one side of the base paper, wherein the colloid is prepared by adding 15% starch to polylactic acid, and then place the coated base paper on Vacuum aluminum coating machine carries out aluminum crossing, the aluminum crossing layer and the paper base are compounded by hot melt adhesive, and calendered with a calender;

[0031] (2) Preparation of degradable waterproof colloid: Add 33g of oxidized starch to 100mL of water, heat to 90°C for gelatinization ...