Printing method for plastic packaging bag

A printing method and packaging bag technology, applied in printing, printing machines, rotary printing machines, etc., can solve problems such as poor printing fastness, and achieve good printing fastness, good printing effect, and good coloring polarity

Inactive Publication Date: 2018-05-29
澧县津溥包装制品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a printing method for plastic packaging bags to solve the problem of poor printing fastness of existing pharmaceutical packaging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The invention provides a printing method of a plastic packaging bag, which keeps the printing ambient temperature at 18°C-20°C and the ambient humidity at 40%-50%, comprising the following steps:

[0027] Coat the film A with the adhesive under the action of the pressure roller, place it in a dryer for drying, and the drying temperature is 48°C;

[0028] The dried film A is bonded to the film B under the action of a pressure roller to form a composite film. The temperature of the pressure roller is 70° C., and the bonding time is 30 minutes.

[0029] Pass the composite film through the gap between the discharge tool holder and the blade, and use high-frequency high-voltage power to generate corona to treat the composite film;

[0030] Electrostatic treatment of ion generator on the surface of composite membrane by spraying device

[0031] The printing area of ​​the composite film is preheated, and the preheating temperature is 40°C.

[0032] Use the printing plate of ...

Embodiment 2

[0039] The invention provides a printing method for a plastic packaging bag, which keeps the printing ambient temperature at 20°C-25°C and the ambient humidity at 50-60%, comprising the following steps:

[0040] Coat the film A with the adhesive under the action of the pressure roller, place it in a dryer for drying, and the drying temperature is 48°C;

[0041] The dried film A is bonded to the film B under the action of a pressing roller to form a composite film. The temperature of the pressing roller is 60° C., and the bonding time is 40 minutes.

[0042] Pass the composite film through the gap between the discharge tool holder and the blade, and use high-frequency high-voltage power to generate corona to treat the composite film;

[0043] Electrostatic treatment of ion generator on the surface of composite membrane by spraying device

[0044] The printing area of ​​the composite film is preheated, and the preheating temperature is 50°C.

[0045] Utilize the printing plate...

Embodiment 3

[0052] The invention provides a printing method for a plastic packaging bag, keeping the printing ambient temperature at 22°C and the ambient humidity at 55%, comprising the following steps:

[0053] Coat the film A with the adhesive under the action of the pressure roller, place it in a dryer for drying, and the drying temperature is 48°C;

[0054] The dried film A is bonded to the film B under the action of a pressure roller to form a composite film. The temperature of the pressure roller is 50° C., and the bonding time is 50 minutes.

[0055] Pass the composite film through the gap between the discharge tool holder and the blade, and use high-frequency high-voltage power to generate corona to treat the composite film;

[0056] Electrostatic treatment of ion generator on the surface of composite membrane by spraying device

[0057] The printing area of ​​the composite film is preheated, and the preheating temperature is 40°C.

[0058] Use the printing plate of reverse pict...

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PUM

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Abstract

The invention provides a printing method for a plastic packaging bag. The method includes the steps that a thin film A is coated with an adhesion agent under the action of a compression roller and then is put into a drying apparatus to be dried, and the drying temperature is 46-50 DEG C; the dried thin film A is bonded with a thin film B under the action of the compression roller so that a composite film can be formed, the composite film passes through the gap between a discharge tool rest and a blade, and a high-frequency and high-voltage power source is used for generating corona so that thecomposite film can be subjected to surface treatment; a printing area of the composite film is preheated, and the preheating temperature is 40-50 DEG C; a reverse image-text printing plate is adoptedto transfer printing ink onto the surface of the printing area of the composite film; ultraviolet rays are used for irradiating the printing ink of the printing area, so that the printing ink and thecomposite film are subjected to a cross-linking reaction; the composite film irradiated by the ultraviolet rays is put into a reaction still, the intensity of pressure is set to be 2-5MPa, the temperature is set to 4-8h, stable curing is performed, and the time is 3h; and the thin films are fed into a curing chamber to be subjected to a curing reaction. When the technology is adopted to produce the plastic packaging bag, the advantages of being good in printing firmness and clear in printing effect are achieved.

Description

technical field [0001] The present application relates to the technical field of food packaging, and relates to a printing method for plastic packaging bags. Background technique [0002] The plastic film is transparent, flexible, has good water resistance, moisture resistance and gas barrier properties, good mechanical strength, stable chemical properties, oil resistance, easy to print exquisite graphics, and can be heat-sealed into bags. The printing quality of the plastic film is the first visual element of the package, and the customer's first impression of the product is the color. Whether the printed image on the plastic film used in the packaging is clear in color and distinct in tone will affect people's intention to buy the product in the packaging bag. [0003] On the bag packaging in the drug packaging, some drug product information needs to be printed to facilitate the identification and use of the drug. At this time, the clarity of printing is not only related...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F23/04B41F23/08B41F23/00B41F17/00C09D11/107C09D11/102C09D11/03
CPCB41F23/0453B41F17/00B41F23/00B41F23/08C09D11/03C09D11/102C09D11/107
Inventor 刘东升向东刘文群
Owner 澧县津溥包装制品有限责任公司
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