CN211664989U

CN211664989U - Novel AB glue membrane

Info

Publication number: CN211664989U
Application number: CN201922439809.5U
Authority: CN
Inventors: 李晶; 刘川
Original assignee: Ningbo Qihe New Material Technology Co ltd
Current assignee: Ningbo Qihe New Material Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-13
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a novel AB glue membrane, including first from type layer, first adhesive layer, second adhesive layer and second from type layer, arrange and directly bond together from top to bottom on first adhesive layer, second adhesive layer, the upside on first adhesive layer bonds and has first from type layer, the downside on second adhesive layer bonds and has the second is from type layer. The utility model discloses think about ingenious, the structure is arranged rationally, and the material is softer, the following nature is good, and is better to uniformity, the docile nature of electronic product protection, and is better to fingerprint unblock product sensitivity.

Description

Novel AB glue membrane

Technical Field

The utility model relates to a screen protection film technical field especially relates to a novel AB glue membrane.

Background

To the screen protection of electronic product among the prior art, mainly adopt AB type double-sided tape to realize, wherein one side is the high face of gluing, plays the effect of fixed bonding process/shipment protection screen, protection film, and the another side is the face of gluing, has good adsorption effect, plays the effect to electronic product self screen protection, and the bubble is evacuated in the twinkling of an eye after the attached to guarantee the attached effect on product surface. Because the screen of the existing electronic product develops towards the direction of screen fingerprint unlocking, the requirement on the sensitivity of a protective layer material is higher and higher, and the traditional double-sided adhesive tape with a base material cannot meet the requirements of a user on the sensitivity and the protection of a curved screen.

At present, the toughened glass film widely used for the mobile phone and the tablet personal computer is a product formed by adhering toughened glass by a common optical AB adhesive tape, and can protect a screen from being damaged.

Currently, most of AB glue in the market uses organic silicon adhesive and acrylic adhesive, and the existing AB glue has base material (such as PET base material) and uses common acrylic adhesive. The use of AB tapes with a substrate has the following disadvantages:

1) the transparency is not high, so that the visibility is influenced, and the use is influenced no matter an electronic product or an automobile;

2) the reworking performance is poor, and once the acrylic surface is attached to the toughened glass wrongly, reworking cannot be basically performed;

3) the curved screen cannot be perfectly attached, and due to the existence of the base material, the AB glue product has overlarge stiffness and poor following performance and cannot be attached to the curved screen;

4) the screen fingerprint light sensation effect can not be transmitted, so that the screen fingerprint unlocking is not effective.

Therefore, how to design a novel AB glue film, the transparency is high, the exhaust performance is good, no degumming and adhesive residue exist, the film perfectly fits a curved screen, and the difficult problem of screen fingerprint unlocking is easily solved, which is a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel AB glue membrane provides a brand-new protection film to satisfy the requirement of user to sensitivity and curved surface screen protection.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a novel AB glue membrane, including first from type layer, first adhesive layer, second adhesive layer and second from type layer, arrange and directly bond together from top to bottom on first adhesive layer, second adhesive layer, the upside on first adhesive layer bonds and has first from type layer, the downside on second adhesive layer bonds and has the second is from type layer.

Preferably, the first release layer is set to be fluorine release film, silicon system release film or non-silicon release film, and the first thickness of release layer is 20-100 um.

Preferably, first adhesive layer sets up to acrylic acid adhesive layer, rubber adhesive layer, polyurethane adhesive layer or organic silica gel adhesive layer, the thickness on first adhesive layer is 20 ~ 100 um.

Preferably, the second adhesive layer is an acrylate adhesive, a polyurethane adhesive or an organic silicon adhesive; the thickness of the second adhesive layer is 20-100 um.

Preferably, the second is from the type layer and is set up to fluorine from type membrane, silicon system from type membrane or non-silicon from type membrane, the second is from the thickness on type layer and is 20 ~ 100 um.

Compared with the prior art, the utility model discloses a beneficial technological effect:

the utility model relates to an AB glue film, which comprises a first release layer, a first adhesive layer, a second adhesive layer and a second release layer which are compositely connected together, and has the advantages of soft material, good following performance, even thickness, good appearance, high transmittance, good sensitivity and stable performance; the two adhesive layers are directly connected together, the cohesive strength is high, the toughness is strong, when the adhesion is abnormal in the using process, one corner is easily pulled up, the adhesive film can be easily pulled out, and the adhesive film is free from pollution and damage to an adhered body, so that the adhesive film can be widely applied to a mobile phone touch screen. The utility model discloses cancelled the setting of substrate, can satisfy different radians, the perfect laminating of equidimension screen not, the uniformity of protection film to the electronic product protection has been realized, the perfect adaptation of docile nature, especially to the newest screen fingerprint unblock technique in market, this technique adopts the light sense to reach the effect of screen fingerprint unblock, prior art's AB double-sided tape is because it adopts films such as PET as the substrate, can influence the conduction effect of the light of screen, lead to fingerprint identification malfunctioning, and this novel AB glued membrane is effectual to have overcome such problem, the unblock effect is very sensitive. Generally speaking, the utility model discloses think about ingenious, structural arrangement is reasonable, and the material is softer, the followability is good, and is better to uniformity, the docile nature of electronic product protection, and is better to fingerprint unblock product sensitivity.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic view of the structure of the AB glue film of the present invention;

description of reference numerals: 1. a first release layer; 2. a first adhesive layer; 3. a second adhesive layer; 4. a second release layer.

Detailed Description

As shown in fig. 1, a novel AB glue film comprises a first release layer 1, a first adhesive layer 2, a second adhesive layer 3 and a second release layer 4, wherein the first adhesive layer 2 and the second adhesive layer 3 are arranged from top to bottom and directly adhered together, the upper side of the first adhesive layer 2 is adhered with the first release layer 1, and the lower side of the second adhesive layer 3 is adhered with the second release layer 4.

First from type layer 1 sets up to fluorine from type membrane, silicon system from type membrane or non-silicon from type membrane, this first thickness from type layer 1 is 20 ~ 100 um. The second is from type layer 4 and is set up to fluorine from type membrane, silicon system from type membrane or non-silicon from type membrane, the second is from type layer 4's thickness and is 20 ~ 100 um. Specifically, the first release layer 1 and the second release layer 4 are preferably fluorine release films, and the release films made of the material have the advantages of small thickness tolerance, high transparency, low thermal shrinkage, good flexibility and the like, and are easy to peel after use.

First adhesive layer 2 sets up to acrylic acid adhesive layer, rubber adhesive layer, polyurethane adhesive layer or organic silica gel adhesive layer, the thickness on first adhesive layer 2 is 20 ~ 100 um. This first adhesive layer 2 prefers to select the acrylic acid adhesive, because of the coating of carrying out the silica gel adhesive on its surface, effect is better next, if adopt coating organosilicon adhesive face earlier, coating acrylic acid adhesive face again, the problem of peeling off difficulty or anti-peeling will be brought to the type membrane of organosilicon adhesive face and can twice cross the oven, and the acrylic acid adhesive has excellent cohesiveness, optical permeability and ageing resistance, is convenient for with toughened glass's bonding, and the fastness is good.

The second adhesive layer 3 is an acrylate adhesive, a polyurethane adhesive or an organic silicon adhesive; the thickness of the second adhesive layer 3 is 20-100 um. The organic silicon adhesive is preferably selected when the second adhesive layer 3 is manufactured, has excellent foam discharging performance, optical permeability and aging resistance, is convenient for high-temperature composite die cutting and punching with the second release layer 4 at the bottom and is punched into any shape, and the second release layer 4 is easy to peel off from the organic silicon adhesive when in use.

The production process of the utility model is as follows:

firstly, fully and uniformly stirring an acrylic acid adhesive solution for preparing a first adhesive layer 2, filtering the acrylic acid adhesive solution by a filter screen, coating the acrylic acid adhesive solution on a first release layer 1 in a micro-concave mode, a comma shaft mode, a slit extrusion mode and the like, drying the acrylic acid adhesive solution by an oven, and then laminating and rolling the acrylic acid adhesive solution and an engineering film (an organic silicon release film) to prepare the first adhesive layer 2;

and stripping the engineering film (organic silicon release film), fully and uniformly stirring the organic silicon adhesive solution of the prepared second adhesive layer 3, filtering by a filter screen, coating the organic silicon adhesive solution on the prepared first adhesive layer 2 by comma shaft, slit extrusion and the like, drying by an oven, laminating and rolling the organic silicon adhesive solution with the second release film 4 (fluorine release film), curing at a certain temperature, generally placing the four-layer composite adhesive film formed in the second step in the oven at 40-50 ℃, placing for 2-3 d for curing, and effectively connecting the first release layer 1, the first adhesive layer 2, the second adhesive layer 3 and the second release layer 4 together.

Through above processing technology, can realize the direct bonding connection of first adhesive layer 2, second adhesive layer 3, the whole thickness of the fashioned AB glue membrane of this technology is steerable at 80 ~ 400um, and conventional thickness sets up to: 150 ~ 250um, its structure is simpler, and the suitability of curved surface is stronger, and sensitivity is better simultaneously, and can satisfy the intensity that the drawing was removed, does not lose the adhesive strength to the screen again.

The utility model discloses a use:

when the adhesive film is used, the first release layer 1 is firstly peeled off, then toughened glass is adhered to the first adhesive layer 2, then the second release layer 4 is peeled off, and the second adhesive layer 3 is adhered to a mobile phone screen.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A novel AB glue membrane, its characterized in that: including first from type layer (1), first adhesive layer (2), second adhesive layer (3) and second from type layer (4), arrange and directly bond together from top to bottom on first adhesive layer (2), second adhesive layer (3), the upside of first adhesive layer (2) bonds and has first from type layer (1), the downside of second adhesive layer (3) bonds and has the second is from type layer (4).

2. The novel AB glue film of claim 1, wherein: first from type layer (1) set up to fluorine from type membrane, silicon system from type membrane or non-silicon from type membrane, first thickness from type layer (1) is 20 ~ 100 um.

3. The novel AB glue film of claim 1, wherein: first adhesive layer (2) set up to acrylic acid adhesive layer, rubber adhesive layer, polyurethane adhesive layer or organic silica gel adhesive layer, the thickness of first adhesive layer (2) is 20 ~ 100 um.

4. The novel AB glue film of claim 1, wherein: the second adhesive layer (3) is an acrylate adhesive, a polyurethane adhesive or an organic silicon adhesive; the thickness of the second adhesive layer (3) is 20-100 um.

5. The novel AB glue film of claim 1, wherein: the second is from type layer (4) and sets up to fluorine from type membrane, silicon system from type membrane or non-silicon from type membrane, the second is from the thickness on type layer (4) and is 20 ~ 100 um.