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A kind of manufacturing method of paper-plastic composite packaging bag

A manufacturing method, paper-plastic composite technology, applied in packaging, transportation and packaging, chemical instruments and methods, etc., can solve the problems of low solvent-free composite strength, poor anti-counterfeiting performance, excessive residual solvent in products, etc., and achieve solvent-free composite The effect of high strength, strong anti-counterfeiting function and strong anti-counterfeiting ability

Active Publication Date: 2015-11-18
HUBEI YUNHE SALT IND PACKAGE
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Problems solved by technology

[0004] The invention proposes a method for manufacturing a paper-plastic composite packaging bag, which solves the defects in the prior art that the amount of residual solvent in the product exceeds the standard, the strength of solvent-free composite is low, and the anti-counterfeiting performance is poor

Method used

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  • A kind of manufacturing method of paper-plastic composite packaging bag
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  • A kind of manufacturing method of paper-plastic composite packaging bag

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] refer to figure 1 , a method for manufacturing a paper-plastic composite packaging bag, which sequentially includes the following steps: (1) preparing raw materials, including industrial typing paper, resin pellets, base film and adhesive; (2) film blowing process, by blowing The film process produces the PE film from the resin pellets; (3) the printing process, the substrate film is produced into the printed film through the printing process; (4) the l...

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Abstract

The invention provides a manufacturing method of a paper-plastic composite packaging bag. The manufacturing method sequentially comprises steps as follows: (1) raw materials are prepared; (2) a film blowing procedure is performed, and a PE (polyethylene) film is produced by resin particles through the film blowing procedure; (3) a printing procedure is performed, and a printing film is produced by a substrate film through the printing procedure; (4) labelling and composition procedures are performed and comprise a labelling procedure, a first composition procedure and a second composition procedure, a labelling film is produced on the printing film through the labelling procedure to form a printing and labelling film, then, first composition of industrial printing paper and the PE film is performed through the first composition procedure, second composition of the printing and labelling film and a first composite film is performed after spontaneous curing of the first composition, and spontaneous curing is performed after the second composition; and (5) a slitting procedure is performed, the spontaneously cured product is slit through the slitting procedure, and a finished product is put in storage. The manufacturing method is simple in technique, the anti-fake capacity is higher, the solvent-free composition strength is high, and the product is environment-friendly.

Description

technical field [0001] The invention belongs to the field of food packaging, and relates to a method for manufacturing a packaging bag, in particular to a method for manufacturing a paper-plastic composite packaging bag. Background technique [0002] Plastic packaging is mostly used for food packaging. With the enhancement of people's awareness of environmental protection, more and more paper packaging is used to reduce the amount of plastic and protect the environment. However, the packaging performance of pure paper packaging is poor, for example, there is no heat sealing performance, and it cannot be formed into bags, which is not conducive to large-scale mechanized production; the ability to prevent oil pollution is poor, etc. This requires some functional plastics to be compounded with it to solve this problem. The current paper-plastic composite mostly adopts the dry method, and the glue needs to be diluted with an organic solvent, while the paper has a good absorbenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D30/02B65C5/00B29C55/28B32B38/14B32B27/10B32B37/06B32B37/12
Inventor 曾学明李勇进
Owner HUBEI YUNHE SALT IND PACKAGE
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