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Preparation method for environment-friendly PET protective film

A protective film and environment-friendly technology, which is applied to the device and coating of the surface coating liquid, can solve the problems of shortened service life, low water absorption, and limited application range of PET protective film, so as to expand the application range and enhance The effect of service life

Inactive Publication Date: 2018-01-05
天津恩博华科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyethylene terephthalate (PET) is a highly crystalline polymer with excellent wear resistance, electrical insulation, flame retardancy, heat aging resistance and low water absorption. Therefore, it has PET protective film with special protective properties is widely used in electronic products such as computers, digital cameras and mobile phones. The existing PET protective film is mainly made of a layer of release film and a layer of PET original film. After the film is coated with glue, it is then laminated with a layer of PET release film. This PET protective film only has basic properties such as waterproof, wear-resistant and high-temperature resistance, and does not have other characteristics such as tear-proof and anti-static, which limits the PET protective film. range of applications, shortening the service life of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Placing the PET material in a stamping machine for stamping to obtain an unprinted PET layer;

[0016] (2) Print a layer on a surface of the unprinted PET layer to obtain a printed PET layer;

[0017] (3) Place the printed PET layer in a dryer for baking, wherein the baking temperature is 80°C and the baking time is 60 minutes;

[0018] (4) Put the printed PET layer of the baking shield in the molding production mold, then apply liquid silicone on the layer of the printed PET layer, and connect the printed PET layer and liquid silicone by hot pressing to form a composite Protective film, wherein the temperature of hot pressing is 120°C and the pressure is 80kg / cm 2 , the time is 80 seconds;

[0019] (5) Cool the composite protective film at room temperature to obtain the finished composite PET protective film.

Embodiment 2

[0021] (1) Placing the PET material in a stamping machine for stamping to obtain an unprinted PET layer;

[0022] (2) Print a layer on a surface of the unprinted PET layer to obtain a printed PET layer;

[0023] (3) Place the printed PET layer in a dryer for baking, wherein the baking temperature is 60°C and the baking time is 50 minutes;

[0024] (4) Put the printed PET layer of the baking shield in the molding production mold, then apply liquid silicone on the layer of the printed PET layer, and connect the printed PET layer and liquid silicone by hot pressing to form a composite Protective film, wherein the temperature of hot pressing is 120°C and the pressure is 80kg / cm 2 , the time is 100 seconds;

[0025] (5) Cool the composite protective film at room temperature to obtain the finished composite PET protective film.

[0026] Through the above method, the PET material can be connected with liquid silica gel or plastic material with special properties to obtain a compos...

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Abstract

The invention discloses a preparation method of an environment-friendly PET protective film, which comprises the following steps: (1), placing the PET material in a punching machine for stamping and forming to obtain an unprinted PET layer; (2), in the unprinted PET layer, Print a surface printing layer of the PET layer to obtain the printed PET layer; (3), place the printed PET layer in a drier for baking; (4), place the baked printed PET layer in In the molding production mold, then apply liquid silica gel or plastic on the layer of the printed PET layer, and connect the printed PET layer and liquid silica gel as a whole by hot pressing to obtain a composite protective film; (5) 1. Cool the composite protective film at room temperature to obtain a finished composite PET protective film. Through this method, the composite PET protective film can be obtained by connecting PET with liquid silica gel or plastic, which expands the application range of the PET protective film and enhances the service life of the product.

Description

technical field [0001] The invention relates to the technical field of preparation methods of PET protective films, in particular to a preparation method of environment-friendly PET protective films. Background technique [0002] Polyethylene terephthalate (PET) is a highly crystalline polymer with excellent wear resistance, electrical insulation, flame retardancy, heat aging resistance and low water absorption. Therefore, it has PET protective film with special protective properties is widely used in electronic products such as computers, digital cameras and mobile phones. The existing PET protective film is mainly made of a layer of release film and a layer of PET original film. After the film is coated with glue, it is then laminated with a layer of PET release film. This PET protective film only has basic properties such as waterproof, wear-resistant and high-temperature resistance, and does not have other characteristics such as tear-proof and anti-static, which limits ...

Claims

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Application Information

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IPC IPC(8): B41M1/30B05D7/04C08J7/04C08L67/02
Inventor 何永娜
Owner 天津恩博华科技有限公司
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