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Preparation method of modified BOPET film and preparation method of adhesive film

A modified and adhesive film technology, which is applied in the direction of film/flaky adhesives, adhesives, coatings, etc., can solve the problems of PVC film not being resistant to moisture, high temperature, easy aging, etc., to achieve moisture and heat resistance peel strength, Easy to print ink, anti-scratch effect on the surface

Active Publication Date: 2020-06-09
CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an adhesive film to solve the technical problems that the traditional PVC film is not resistant to humidity and high temperature, and is easy to age and scratch

Method used

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  • Preparation method of modified BOPET film and preparation method of adhesive film
  • Preparation method of modified BOPET film and preparation method of adhesive film
  • Preparation method of modified BOPET film and preparation method of adhesive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The invention provides an adhesive film, comprising: a modified BOPET film, one side of the modified BOPET film is coated with anti-scratch paint, and the other side of the modified BOPET film is coated with water-based glue.

[0052] The modified BOPET film adopts a three-layer structure, wherein

[0053] The middle layer is PET, and the surface layer is a modified BOPET layer;

[0054] The modified BOPET layer includes the following components in parts by mass:

[0055] Pet slices 42 to 72 servings;

[0056] 20-50 slices of PCTG;

[0057] 8 parts of silicon masterbatch.

[0058] Wherein, Pet chips such as but not limited to Liaoyang Petrochemical's Pet chips BD48, the intrinsic viscosity is 0.71;

[0059] The PCTG chip is, for example, but not limited to, JN200 is the PCTG chip of Korean SK, which is an amorphous polyester with a CHDM (1,4 cyclohexane dimethanol) content of more than 50%, a tensile strength of 53 MPa, and an elongation at break of 53 MPa. rate of...

Embodiment approach 1

[0105] The first embodiment corresponding to the water-based glue passed the Dahua ink test card (4 colors)

[0106] color red green blue dark blue Peel strength before aging N / Cm 11.8 11.0 10.3 10.1 Peel strength after aging N / Cm 9.3 8.5 6.6 4.3

Embodiment approach 2

[0107] The second embodiment corresponding to the water-based glue passed the Dahua ink test card (4 colors)

[0108] color red green blue dark blue Peel strength before aging N / Cm 12.5 12.7 11.5 11.6 Peel strength after aging N / Cm 11.1 9.8 7.3 4.8

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Abstract

The invention relates to a preparation method of a modified BOPET film and a preparation method of an adhesive film. The preparation method of the modified BOPET film comprises the steps: dehumidifying and drying Pet slices, and feeding the dried Pet slices into a B-layer extrusion system; mixing 42-62 parts by mass of the Pet slices, 30-50 parts by mass of PCTG slices and 8 parts by mass of silicon master batch, and then allowing the mixture to enter an A-layer extrusion system; enabling the two components to sequentially pass through an ABA die head and a casting piece system to form the modified BOPET film with an ABA three-layer structure. The adhesive film disclosed by the invention is good in comprehensive performance, the surface is scratch-resistant, and the card making yield of customers is improved; moisture and heat resistance and high peel strength are achieved, the ink application range is wide, the customers can select printing ink conveniently, and cost is reduced; and water-based glue is used, so that environmental friendliness is achieved.

Description

[0001] This application is a divisional application, the application number of the original application is 201710022931.5, and the application date is: January 12, 2017; the name of the invention-creation: the divisional application of BOPET water-based adhesive film, card and preparation method. technical field [0002] The invention relates to the field of film processing and water-based glue coating. Background technique [0003] At present, domestic production of bank cards and various smart cards (such as social security cards, fuel cards, highway toll cards, etc.) , Most of the glue used is water-based, because it is environmentally friendly and has no air pollution, and the production safety is high. However, the common disadvantage of water-based adhesive film is that it is not resistant to humidity and heat, and the adhesion to the ink layer is generally not strong, and some of the surface layers will peel or crack during use. After collecting the PVC tape film pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C08L67/02C08K3/36C09D133/04C09D201/00C09D7/63C09D7/65C09J201/00C09J11/06C09J11/08B42D25/305B42D25/378
CPCB42D25/305B42D25/378C08L67/02C08L2201/08C08L2205/025C08L2205/03C09D133/04C09D201/00C09J11/06C09J11/08C09J201/00C09D7/63C09D7/65C09J7/29C09J7/30C08K3/36C08L23/0869C08K5/29C08L101/00C08L83/12C08K5/541C08L33/04
Inventor 茹正伟茹小伟
Owner CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD