Processing method for laminated paper bag

A processing method and film-covering technology, which is applied to bags, sacks, papermaking, etc., can solve the problems that the stock film does not meet the surface tension required for bonding, short timeliness, and low surface dyne value strength, etc., and achieve product quality Stable and reliable, long-lasting, long-lasting and stable performance

Inactive Publication Date: 2012-01-18
SHANGHAI WANHONG PRINTING
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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

Method used

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  • Processing method for laminated paper bag
  • Processing method for laminated paper bag

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Embodiment Construction

[0028] The processing method of a film-coated paper bag of the present invention comprises the following steps (1) paper printing: printing the design pattern on the paper to make a printed matter; (2) post-printing film coating: covering the surface of the printed matter with a layer of transparent plastic film Made of laminated printed matter; (3) Die-cutting processing: Die-cutting and indentation processing of laminated printed matter; (4) Plasma treatment process: Perform plasma treatment on the area to be bonded of the laminated printed matter after die-cutting processing; (5) Box paste process: apply adhesive on the area to be bonded after plasma treatment, join the area to be bonded, and make a coated paper bag after curing the adhesive.

[0029] Plasma treatment is performed on the area to be bonded on the surface of the laminated printed matter by a plasma treatment device. The plasma processing device is composed of a host 1 for generating high-voltage and high-freq...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D30/08B41F23/08B31B1/62B31B50/62
Inventor 张根赵威钱爱祥
Owner SHANGHAI WANHONG PRINTING
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