CN212076923U

CN212076923U - High printing opacity PET membrane

Info

Publication number: CN212076923U
Application number: CN202020205833.2U
Authority: CN
Inventors: 张文远; 李麟; 秋泽民; 凌帅帅
Original assignee: Shaoxing Weiming Plastic Co ltd
Current assignee: Shaoxing Weiming Plastic Co ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-12-04
Anticipated expiration: 2030-02-25

Abstract

The utility model discloses a high printing opacity PET membrane relates to PET membrane technical field. The utility model comprises two layers of flexible PET base films and a carbon nanotube layer arranged between the two layers of flexible PET base films; two surfaces of the carbon nanotube layer are bonded with the adjacent flexible PET base film through the OCA optical adhesive layer; the outer surface of one of the flexible PET base films is coated with a wear-resistant hardened layer; the thickness of the carbon nano tube layer is 30-60 nanometers. The utility model reduces the light interference, reduces the light passing distance and increases the light permeability through two layers of PET films, one layer of carbon nanotube layer and two layers of OCA optical cement; the structural strength of the whole film is enhanced in the middle of the carbon nanotube layer, the stability of high light transmittance of the PET film is improved, and the problem of insufficient light transmittance of the existing film is solved.

Description

High printing opacity PET membrane

Technical Field

The utility model belongs to the technical field of the PET membrane, especially, relate to a high printing opacity PET membrane.

Background

The PET film is also named as a high-temperature resistant polyester film. The material has excellent physical performance, chemical performance, size stability, transparency and recoverability, and can be widely applied to the fields of magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, package decoration, screen protection, optical mirror surface protection and the like. Most of the protective films in the existing market take a PC film as a base film, and after the common protective film is attached, because PC has crystallization and double refraction characteristics, the light source reflection is incomplete, and the light transmittance is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high printing opacity PET membrane, through two-layer PET film, one deck carbon nanotube layer and two-layer OCA optical cement, reduce the interference of light, reduce the distance that light passes through, increase the light permeability; the structural strength of the whole film is enhanced in the middle of the carbon nanotube layer, the stability of high light transmittance of the PET film is improved, and the problem of insufficient light transmittance of the existing film is solved.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a high-transmittance PET film, which comprises two layers of flexible PET base films and a carbon nanotube layer arranged between the two layers of flexible PET base films; two surfaces of the carbon nanotube layer are bonded with the adjacent flexible PET base film through an OCA optical adhesive layer; wherein the outer surface of one flexible PET base film is coated with an abrasion-resistant hardened layer; the thickness of the carbon nano tube layer is 30-60 nanometers.

Further, the outer surface of the other flexible PET base film is coated with a high-permeability glass adhesive layer.

Further, the thickness of the high-permeability glass adhesive layer is 91-100 microns.

Further, the thickness of the OCA optical adhesive layer is 21-30 microns.

Further, the high-permeability glass adhesive layer is an organic silicon pressure-sensitive adhesive layer, a PU adhesive layer or an acrylic adhesive layer.

The utility model discloses following beneficial effect has:

the utility model discloses a set up two-layer PET film, one deck carbon nanotube layer and two-layer OCA optical cement, reach the optical path difference less than the thicker single-layer polyester film of thickness, reduce the interference of light, reduce the route that light passes through, increase the light permeability; the carbon nanotube layer strengthens the structural strength of the whole film in the middle, reduces the slippage of the bonding part and improves the stability of high light transmission of the PET film.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a high-transmittance PET film of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

the glass substrate comprises a 1-flexible PET base film, a 2-carbon nanotube layer, a 3-OCA optical adhesive layer, a 4-wear-resistant hardened layer and a 5-high-permeability glass adhesive layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, the utility model relates to a high-transmittance PET film, which comprises two layers of flexible PET base films 1 and a carbon nanotube layer 2 arranged between the two layers of flexible PET base films 1; two surfaces of the carbon nanotube layer 2 are bonded with the adjacent flexible PET base film 1 through an OCA optical adhesive layer 3; the outer surface of one flexible PET base film 1 is coated with an abrasion-resistant hardened layer 4; the thickness of the carbon nanotube layer 2 is 30-60 nm.

Wherein, the outer surface of the other flexible PET base film 1 is coated with a highly air permeable glass adhesive layer 5.

Wherein the thickness of the highly air-permeable glass adhesive layer 5 is 91-100 μm.

Wherein, the thickness of the OCA optical glue layer 3 is 21-30 microns.

Wherein, the high-permeability glass adhesive layer 5 is an organic silicon pressure-sensitive adhesive layer, a PU adhesive layer or an acrylic adhesive layer.

By arranging two PET films, one carbon nanotube layer and two OCA optical adhesives, infrared light generated by the fingerprint sensor is firstly refracted by the lower PET film layer for the first time, then refracted by the two OCA optical adhesive layers for the second time and the third time, and finally refracted by the upper PET film layer for the fourth time, because the PET films and the OCAs have high self light transmittance and different refractive indexes to the light, the light enters the OCA optical adhesive layer for compensation and adjustment after being refracted by the lower PET film layer, and then enters the upper PET film layer for refraction, so that the optical path difference smaller than that of a single-layer polyester film with thicker thickness is achieved, the light interference is reduced, and the influence on the optical fingerprint identification speed caused by the dispersion phenomenon after the infrared light of fingerprints under an optical screen penetrates through the protective film is reduced; the carbon nanotube layer strengthens the structural strength of the whole film in the middle, reduces the slippage of the bonding part and improves the stability of high light transmission of the PET film.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high printing opacity PET membrane which characterized in that:

comprises two layers of flexible PET base films (1) and a carbon nano tube layer (2) arranged between the two layers of flexible PET base films (1); two surfaces of the carbon nanotube layer (2) are bonded with the adjacent flexible PET base film (1) through an OCA optical adhesive layer (3); wherein the outer surface of one flexible PET base film (1) is coated with an abrasion-resistant hardened layer (4); the thickness of the carbon nano tube layer (2) is 30-60 nanometers.

2. The PET film as claimed in claim 1, wherein the external surface of the other flexible PET base film (1) is coated with a highly gas permeable glass adhesive layer (5).

3. The PET film as claimed in claim 2, wherein the highly gas-permeable glass adhesive layer (5) has a thickness of 91-100 μm.

4. The PET film as claimed in claim 1, wherein the thickness of the OCA optical adhesive layer (3) is 21-30 μm.

5. The PET film as claimed in claim 2, wherein the highly air permeable glass adhesive layer (5) is a silicone pressure sensitive adhesive layer, a PU adhesive layer or an acrylic adhesive layer.