Processing method for laminated paper bag

Abstract

The invention discloses a processing method for a laminated paper bag which relates to the technical field of packaging materials and aims at the problems that the strength of the Dyne value of the surface of an existing corona-processed laminated paper bag is low; the timeliness is short; and the stored film cannot achieve the required surface tensile for adhesive bonding. The method disclosed by the invention comprises the following steps of: (1) paper printing: printing a design pattern on the paper to prepare a printed matter; (2) laminating after printing: covering a layer of transparent plastic film on the surface of the printed matter to prepare a laminated printed matter; (3) die cutting processing: performing die cutting and creasing processing for the laminated printed matter; (4) plasma processing technology: performing plasma treatment for the area to be bonded of the laminated printed matter subjected to the die cutting; and (5) case bonding technology: coating a binder on the area to be bonded subjected to the plasma treatment, jointing the area to be bonded; and solidifying the binder to prepare the laminated paper bag. The method disclosed by the invention is used for processing and manufacturing the laminated paper bag to enhance the binding strength of the joint of the paper bag.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a processing method for a film-coated paper bag. Background technique [0002] Portable paper bags are widely used in commodity packaging in the fields of clothing, food, footwear, gifts, tobacco, alcohol, and medicine. The basic process of paper bag production is design, proofing, printing, lamination, surface finishing, die-cutting and box-gluing. [0003] Lamination, also known as post-press film, is to cover a layer of transparent plastic film with a thickness of 0.012mm to 0.020mm on the surface of the printed matter to form a post-press finishing process that combines paper and plastic. Physical properties such as tearing and puncture resistance are generally improved, and the bearing capacity is significantly enhanced. For general paper, water-based cold glue can make them bond well, but for materials such as coated paper and glazed paper, the bonding is no l...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the surface dyne value of the corona-treated coated paper bag is low, the timeliness is short, and the stock film cannot reach the surface tension required for bonding, the purpose of the present invention is to provide a processing method for the coated paper bag

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