Method for processing and increasing printing and packaging dyne value

A technology of printing and packaging, dyne value, applied in the direction of flat products, household appliances, other household appliances, etc., can solve the problems of easy accumulation of static electricity, no heat sealability, etc., to achieve the effect of good corona and favorable printing

Inactive Publication Date: 2018-04-27
WUHAN HONGJINLONG PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

BOPP film also has shortcomings, such as easier to accumulate static electricity, no heat sealability, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The method for improving the printing and packaging dyne value in this embodiment includes the following steps,

[0023] Make the surface of the plastic film to be corona formed at least one air-filled sealing structure, the plastic film to be corona treated is made into a straight cylindrical plastic film, and the straight cylindrical plastic film can increase the corona area and improve the corona efficiency, and then the plastic The film is placed on the corona device, and then the sealing structure is inflated. The sealing structure can be a sealing ring, and a corona member for corona is arranged on the sealing structure. The plastic film can be a BOPP film;

[0024] And, the plastic film with the air-filled sealing structure is corona-treated.

[0025] The specific steps of the corona treatment are as follows: the power of the corona treatment is 3kw, the voltage is 10kv, and the working frequency is 18kHz.

[0026] Corona treatment until the dyne value of the pl...

Embodiment 2

[0034] The method for improving the printing and packaging dyne value in this embodiment includes the following steps,

[0035] Make the surface of the plastic film to be corona formed at least one air-filled sealing structure, the plastic film to be corona treated is made into a straight cylindrical plastic film, and the straight cylindrical plastic film can increase the corona area and improve the corona efficiency, and then the plastic The film is placed on the corona device, and then the sealing structure is inflated. The sealing structure can be a sealing ring, and a corona member for corona is arranged on the sealing structure. The plastic film can be a BOPP film;

[0036] And, the plastic film with the air-filled sealing structure is corona-treated.

[0037] The specific steps of the corona treatment are as follows: the power of the corona treatment is 10kw, the voltage is 11kv, and the working frequency is 22kHz.

[0038] Corona treatment until the dyne value of the p...

Embodiment 3

[0046] The method for improving the printing and packaging dyne value in this embodiment includes the following steps,

[0047] Make the surface of the plastic film to be corona formed at least one air-filled sealing structure, the plastic film to be corona treated is made into a straight cylindrical plastic film, and the straight cylindrical plastic film can increase the corona area and improve the corona efficiency, and then the plastic The film is placed on the corona device, and then the sealing structure is inflated. The sealing structure can be a sealing ring, and a corona member for corona is arranged on the sealing structure. The plastic film can be a BOPP film;

[0048] And, the plastic film with the air-filled sealing structure is corona-treated.

[0049] The specific steps of the corona treatment are as follows: the power of the corona treatment is 17kw, the voltage is 12kv, and the working frequency is 26kHz.

[0050] Corona treatment until the dyne value of the p...

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Abstract

The invention provides a method for processing and increasing the printing and packaging dyne value and belongs to the technical field of printing and packaging. The method for processing and increasing the printing and packaging dyne value comprises the following steps of forming at least one inflatable sealing structure on the surface of a plastic film to be about to be subjected to corona; andconducting corona treatment on the inflatable plastic film. Through the corona treatment method, air is inflated into the sealing structures, and corona treatment can be conducted better, so that molecular structures on the surface of the plastic film is rearranged to generate more polar parts, so that the dyne value of the surface of the plastic film is increased obviously, and subsequent printing of the plastic film is facilitated.

Description

technical field [0001] The invention belongs to the technical field of printing and packaging, and relates to a method for improving the dyne value of printing and packaging. Background technique [0002] BOPP film is biaxially oriented polypropylene film. BOPP film is an important flexible packaging material with a wide range of applications. BOPP film is colorless, odorless, tasteless, non-toxic, and has high tensile strength, impact strength, rigidity, toughness and good transparency. The surface energy of BOPP film is low, and corona treatment is required before gluing or printing. However, after corona treatment, BOPP film has good printing adaptability, and can be printed in color to obtain exquisite appearance effect, so it is often used as the surface layer material of composite film. BOPP film also has disadvantages, such as easier to accumulate static electricity, no heat sealability, etc. The production of BOPP film is to first make the melt of high molecular ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C71/00B29L7/00
CPCB29C71/0081B29L2007/00
Inventor 茹意朱红艳朱小利柳进文李波陈莹
Owner WUHAN HONGJINLONG PRINTING
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