Manufacturing method of aluminum foil parafilm

A manufacturing method and sealing film technology, applied in chemical instruments and methods, sustainable manufacturing/processing, sealing, etc., can solve problems such as insufficient adhesive reaction time, long delivery period, weak composite strength, etc., to reduce time , shorten the delivery time, reduce the effect of delamination rate

Active Publication Date: 2017-08-25
ZHEJIANG GOLDSTONE PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this manufacturing method can produce aluminum foil sealing film, from printing to final slitting and packaging, the required delivery time is relatively long, and because the reaction time of the adhesive is not sufficient, the composite strength is weak, when the aluminum foil sealing film is subjected to high temperature When cooking, it is easy to stratify, and the stratification rate can reach 10%

Method used

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  • Manufacturing method of aluminum foil parafilm
  • Manufacturing method of aluminum foil parafilm
  • Manufacturing method of aluminum foil parafilm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to figure 2 , an aluminum foil sealing film, which is suitable for sealing bottles with the same material as the inner film, and can be cooked under high temperature conditions. From outside to inside, it includes: varnish layer 1, ink layer 2, aluminum foil layer 3, adhesive mixture layer 4 and a thermoplastic resin film. Wherein the thermoplastic resin film is an inner film.

[0033] refer to image 3 , a kind of manufacture method of above-mentioned aluminum foil sealing film of the present invention: comprise successively

[0034] In the composite process, one side of the aluminum foil is coated with an adhesive, and after drying, the thermoplastic resin film is thermally laminated on the side of the aluminum foil coated with the adhesive to form a composite film;

[0035] In the first curing process, the composite film is placed in a curing chamber for curing;

[0036] Warehouse, put the cured composite film into the inventory;

[0037] In the printing ...

Embodiment 2

[0052] refer to Figure 4 , the present embodiment provides a method for manufacturing an aluminum foil parafilm in embodiment 1, which is substantially the same as in embodiment 1, except that:

[0053] There is also a second aging process between the glazing process and the cutting process. The second curing process makes the main agent and auxiliary agent of the varnish coated on the surface of the aluminum foil fully react in the glazing process, and then the bonding effect between the varnish and the aluminum foil is better, and the varnish can effectively protect the aluminum foil from It is oxidized by the outside air, prolonging the service life of the aluminum foil sealing film. At the same time, the second aging process can further promote the full reaction of the main agent of the adhesive in the composite film and the curing agent, so that the obtained aluminum foil sealing film has better composite strength.

[0054] In the second curing process, the temperature...

Embodiment 3

[0056] This embodiment provides a method for manufacturing an aluminum foil sealing film in Embodiment 1, which is substantially the same as Embodiment 2, except that:

[0057] In the compounding process, the hot-pressing temperature of the thermoplastic resin film and the aluminum foil is 60°C; the speed of the thermoplastic resin film and the aluminum foil is 150 m / min; the glue amount of the adhesive is 5.0 grams per square meter .

[0058] In the composite process, the specific method of drying treatment, this example adopts the method of passing the aluminum foil coated with adhesive on one side at a speed of 180 m / min without stopping in sequence at 65°C, 80°C, and 85°C in three-stage ovens , for drying and drying treatment.

[0059] In the first curing process, the temperature of the curing chamber is 60° C., and the curing time is 150 hours.

[0060] In the printing process, the drying temperature for drying the ink after printing is 60°C; the speed for drying the in...

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Abstract

The invention discloses a method for manufacturing an aluminum foil sealing film and belongs to the technical field of sealing film packaging. The method sequentially includes the processes of 1, composting, wherein one face of aluminum foil is coated with a bonding agent, a thermoplastic resin film is composted to the face, with the bonding agent, of the aluminum foil after the aluminum foil is dried, and a composite film is formed; 2, first curing, wherein the composite film is placed in a curing chamber to be cured; 3, warehousing, wherein the cured composite film is stored into a warehouse; 4, printing, wherein when printing is needed, the composite film is taken out from the warehouse, the non-composite face of the aluminum foil of the composite film is printed with selected characters or patterns with oil ink, and drying treatment is conducted; 5, varnishing, wherein the face printed with oil ink of the aluminum foil is coated with varnish; 6, splitting, the varnished composite film is split to be of the required size; and 7, packaging, wherein split composite films are packaged. By means of the method, the technical problems that an existing method for manufacturing an aluminum foil sealing film is long in manufacturing cycle, and the manufactured aluminum foil sealing film is high in layering rate are solved. The method has the beneficial effects of being short in manufacturing cycle, and the manufactured aluminum foil sealing film is low in layering rate.

Description

technical field [0001] The invention belongs to the technical field of sealing film packaging, in particular to a method for manufacturing an aluminum foil sealing film. Background technique [0002] Aluminum foil sealing film is widely used in the sealing of polyethylene (PE) bottles. The existing aluminum foil sealing film is usually composed of varnish layer, ink layer, aluminum foil layer, adhesive layer and polyethylene film. For its manufacturing method, refer to figure 1 , including the following processes in turn: printing, glazing, compounding, curing, slitting and packaging. Specifically, first print ink on one side of the aluminum foil, after drying, glazing on the printed side of the aluminum foil, and apply varnish , then coat the non-printing surface of the aluminum foil with an adhesive and dry it, then hot-compress the polyethylene film and the non-printing surface of the aluminum foil coated with the adhesive to obtain a base film, and then ripen the base fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D53/08B32B37/06B32B37/10B32B37/12B32B38/00B32B38/14
CPCY02W90/10
Inventor 曾文明孙国锦张文锋马治锋吉娟
Owner ZHEJIANG GOLDSTONE PACKING
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