Paper-aluminum-plastic composite aseptic packaging material

A packaging material, paper-aluminum-plastic technology, applied in the field of packaging materials, can solve problems such as cracking of printed patterns or packaging materials, raising the cost of paper layers, and reducing fiber toughness, so as to reduce the amount of bleaching agent, prevent cracking, and reduce production costs. low effect

Inactive Publication Date: 2017-02-01
重庆市利慧包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the pulp is completely bleached, the toughness of the fiber is significantly reduced, and the produced paper is easily broken after being indented and boxed; When it is easy to break, the printed pattern or packaging material will be broken; moreover, the complete bleaching and coating treatment not only causes serious pollution, is not conducive to environmental protection, but also increases the cost of the paper layer

Method used

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  • Paper-aluminum-plastic composite aseptic packaging material
  • Paper-aluminum-plastic composite aseptic packaging material

Examples

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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, this embodiment includes an aluminum foil 4, a first adhesive layer 3 is provided on one side of the aluminum foil 4, and a second adhesive layer 5 and a polyethylene heat-sealing layer 6 are sequentially provided on the other side of the aluminum foil 4. The first adhesive layer 3 is made of polyethylene as the main material, and is coated on the surface of the aluminum foil 4 close to the paper layer 2 to provide the adhesion between the aluminum foil 4 and the paper layer 2, and according to the actual mold The difference in the number of heads, the first adhesive layer 3 can be one or more layers of coated polyethylene; Resin, coated on the surface of the aluminum foil 4 away from the paper layer 2, is used to provide the bonding force between the aluminum foil 4 and the polyethylene heat-sealing layer 6; the polyethylene heat-sealing layer 6 is mainly made of polyethylene , coated on the second adhesive layer 5 for heat sealing, the poly...

Embodiment 2

[0028] Such as figure 2 As shown, this embodiment includes an aluminum foil 4, a first adhesive layer 3 is provided on one side of the aluminum foil 4, and a second adhesive layer 5 and a polyethylene heat-sealing layer 6 are sequentially provided on the other side of the aluminum foil 4. The first adhesive layer 3 is made of polyethylene as the main material, and is coated on the surface of the aluminum foil 4 close to the paper layer 2 to provide the adhesion between the aluminum foil 4 and the paper layer 2, and according to the actual mold The difference in the number of heads, the first adhesive layer 3 can be one or more layers of coated polyethylene; Resin, coated on the surface of the aluminum foil 4 away from the paper layer 2, is used to provide the bonding force between the aluminum foil 4 and the polyethylene heat-sealing layer 6; the polyethylene heat-sealing layer 6 is mainly made of polyethylene , coated on the second adhesive layer 5 for heat sealing, the pol...

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Abstract

The present invention discloses a paper-aluminum-plastic composite aseptic packaging material, which comprises an aluminum foil, wherein a first adhesion layer is coated on one surface of the aluminum foil in a film coating manner, a second adhesion layer and a polyethylene heat sealing layer are sequentially coated on the other surface of the aluminum foil in a film coating manner, a paper layer is adhered on the first adhesion layer surface away from the aluminum foil and is the paper incapable of directly providing the whiteness index and the smoothness index required by printing, and the paper layer surface away from the first adhesion layer is provided with a colored polyolefin layer. According to the present invention, the paper incapable of directly providing the whiteness index and the smoothness index required by printing is selected as the paper layer and the paper layer surface away from the first adhesion layer is provided with the colored polyolefin layer, such that the paper-aluminum-plastic composite aseptic packaging material with characteristics of breaking resistance, good printing effect and environmental protection is provided, and further has characteristics of clever idea, easy production, low production cost, and the like.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, and in particular relates to a paper-aluminum-plastic composite aseptic packaging material. Background technique [0002] At present, the paper-aluminum-plastic composite aseptic packaging materials specially used for Tetra Pak's paper-aluminum-plastic aseptic filling machine or other similar equipment mainly include the following structures from outside to inside: polyethylene protective layer, paper layer, first adhesive laminate, aluminum foil, second adhesive layer and polyethylene heat seal layer. Among them, before coating the polyethylene protective layer on the paper layer, the packaging pattern needs to be printed on the side of the paper layer facing the polyethylene protective layer, so the printing effect of the packaging pattern is closely related to the material selection of the paper layer. [0003] Because the original pulp of papermaking itself has the color of wood ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/10B32B27/32B32B7/12B32B15/12B32B15/20B32B15/085B32B33/00B65D65/40
CPCB32B27/10B32B7/12B32B15/085B32B15/12B32B15/20B32B27/32B32B33/00B32B2307/50B32B2307/75B65D65/40
Inventor 罗朝炜
Owner 重庆市利慧包装有限公司
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