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 poor anti-counterfeiting performance, excessive residual solvent content in products, low solvent-free composite strength, etc., and achieve strong anti-counterfeiting function. , The effect of solvent-free composite strength, high anti-counterfeiting ability

Active Publication Date: 2013-11-27
HUBEI YUNHE SALT IND PACKAGE
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  • Abstract
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  • Claims
  • Application Information

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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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  • Manufacturing method of paper-plastic composite packaging bag
  • Manufacturing method of paper-plastic composite packaging bag
  • Manufacturing method of paper-plastic composite packaging bag

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Embodiment Construction

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] refer to figure 1 , a manufacturing method of a paper-plastic composite packaging bag, which sequentially includes the following steps: (1) preparing raw materials, the raw materials include industrial typing paper, resin pellets, substrate films and adhesives; (2) film blowing process, by blowing The film process produces the resin pellets into the PE film; (3) the printing process, through the printing process, the substrate ...

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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] Food packaging is mostly plastic 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 bagged, which is not conducive to large-scale mechanized production; poor oil pollution resistance, etc. This requires some functional plastics to be compounded with it to solve this problem. The current paper-plastic compounding is mostly dry compounding, which requires organic solvent to dilute the glue, and paper has good absorption, which is easy to cause the residual solvent con...

Claims

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Application Information

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Patent Type & Authority Applications(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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