CN111892880A - AB glue of mobile phone curved surface screen protection film - Google Patents

AB glue of mobile phone curved surface screen protection film Download PDF

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Publication number
CN111892880A
CN111892880A CN201910369328.3A CN201910369328A CN111892880A CN 111892880 A CN111892880 A CN 111892880A CN 201910369328 A CN201910369328 A CN 201910369328A CN 111892880 A CN111892880 A CN 111892880A
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CN
China
Prior art keywords
layer
glue
mobile phone
base material
oca
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910369328.3A
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Chinese (zh)
Inventor
徐贵全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Ruifeida Photoelectric Technology Co ltd
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Shenzhen Ruifeida Photoelectric Technology Co ltd
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Publication date
Application filed by Shenzhen Ruifeida Photoelectric Technology Co ltd filed Critical Shenzhen Ruifeida Photoelectric Technology Co ltd
Priority to CN201910369328.3A priority Critical patent/CN111892880A/en
Publication of CN111892880A publication Critical patent/CN111892880A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/255—Polyesters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials
    • C09J2400/14—Glass
    • C09J2400/143—Glass in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2483/00—Presence of polysiloxane

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Telephone Set Structure (AREA)

Abstract

The invention relates to the field of a mobile phone curved screen protection film, and particularly discloses an AB glue of the mobile phone curved screen protection film, which comprises an A surface layer, a base material layer and a B surface layer; the base material layer is made of a PET base material; the surface layer A is coated at the lower end of the base material layer and is made of silica gel; the surface layer B is coated on the upper end of the base material layer, the material of the surface layer B is OCA glue, and the surface of the surface layer B forms a concave shaft extrusion OCA coating layer and a convex shaft extrusion OCA coating layer through the co-extrusion action of a convex shaft and a concave shaft arranged on the upper roller; the AB glue structure of the mobile phone curved surface screen protection film is reasonable in design and strong in practicability, and a concave shaft extrusion OCA coating layer and a convex shaft extrusion OCA coating layer are formed through the convex shaft extrusion effect, so that the AB glue structure of the whole mobile phone curved surface screen protection film is thin in the middle and thick on two sides; the design that both sides are thick enables AB glue laminating behind the toughened glass membrane, makes to have sufficient AB glue layer between toughened glass membrane and the curved surface screen to make the toughened glass membrane can with the complete laminating of cell-phone screen.

Description

AB glue of mobile phone curved surface screen protection film
Technical Field
The invention relates to the field of a curved surface screen protection film of a mobile phone, in particular to an AB glue of the curved surface screen protection film of the mobile phone.
Background
Along with the fact that the under-screen fingerprint identification mobile phone is gradually applied to the comprehensive screen mobile phone, the ultrasonic fingerprint identification technology of the smart mobile phone is safe and reliable, and can work normally under strong light and humid environments. People generally stick a protective film on the screen of the mobile phone in the process of using the mobile phone to prevent the screen from being scratched. The ultrasonic fingerprint technology has a very high requirement on the distance between a finger and a mobile phone screen, and if the thickness of the protective film exceeds a maximum identification threshold, the mobile phone cannot be unlocked. Due to the limitation of the curved screen technology, the protective film has to have a certain thickness so as to tightly attach the edges of the mobile phone film and the curved surface of the mobile phone screen.
Aiming at the problems in the prior art, the invention aims to provide the AB glue for the curved screen protective film of the mobile phone.
Disclosure of Invention
The invention aims to provide an AB glue for a curved screen protective film of a mobile phone, which is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a AB glue of cell-phone curved surface screen protection film, it includes: the protective film comprises a surface layer A, a base material layer and a surface layer B, wherein the base material layer is a base layer of AB glue of the mobile phone curved surface screen protective film, and the base material layer is made of a PET (polyethylene terephthalate) base material; the surface layer A is coated at the lower end of the base material layer and is made of silica gel; the B surface course coating is in the substrate layer upper end, and the material on B surface course is OCA glue.
As a further scheme of the invention: the thickness of substrate layer is 50 ~ 500 um.
As a further scheme of the invention: the thickness of A surface course is 60 ~ 600um, and the adhesion of A surface course is 50 ~ 400 g.
As a further scheme of the invention: the thickness of B surface course is 70 ~ 700um, and the adhesion on B surface course is 500 ~ 3500 g.
As a further scheme of the invention: and the surface of the B surface layer forms a concave shaft extrusion OCA coating layer and a convex shaft extrusion OCA coating layer through the joint extrusion action of a convex shaft and a concave shaft arranged on the upper roller.
As a further scheme of the invention: the coating thickness of the concave shaft extrusion OCA coating layer is 100-500 um, and the coating thickness of the convex shaft extrusion OCA coating layer is 50-400 um; the B surface layers are alternately thick and thin and are arranged in a zigzag manner.
Compared with the prior art, the invention has the beneficial effects that:
the AB glue structure of the mobile phone curved surface screen protection film is reasonable in design and strong in practicability, and a concave shaft extrusion OCA coating layer and a convex shaft extrusion OCA coating layer are formed through the co-extrusion action of a convex shaft and a concave shaft, so that the AB glue structure of the whole mobile phone curved surface screen protection film is thin in the middle and thick on two sides; the design of thin middle can shorten the distance between the finger and the screen, so as to achieve the purpose of fingerprint identification; the design that both sides are thick enables AB glue laminating behind the toughened glass membrane, makes to have sufficient AB glue layer between toughened glass membrane and the curved surface screen to make the glass membrane can completely laminate with the cell-phone screen, be worth promoting and using in cell-phone curved surface screen protection film field.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a schematic structural diagram of an AB glue of a curved surface screen protective film of a mobile phone according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a principle of coating the side-B OCA glue of the AB glue of the curved surface screen protective film of the mobile phone according to the embodiment of the invention.
Fig. 3 is a schematic diagram illustrating a principle of coating the side-B OCA glue of the AB glue of the curved surface screen protective film of the mobile phone according to the embodiment of the invention.
Fig. 4 is a schematic view illustrating an installation of the AB glue and the glass screen of the curved surface screen protective film of the mobile phone according to the embodiment of the present invention.
In the figure: 1-A surface layer, 2-base material layer, 3-B surface layer, 4-concave shaft extrusion OCA coating layer, 5-convex shaft extrusion OCA coating layer, 6-lower roller, 7-upper roller, 8-convex shaft, 9-concave shaft and 10-toughened glass film.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Referring to fig. 1, in embodiment 1 of the present invention, an AB glue for a curved surface screen protective film of a mobile phone includes: the protective film comprises a surface layer 1A, a base material layer 2 and a surface layer 3B, wherein the base material layer 2 is a base layer of AB glue of the mobile phone curved screen protective film, and the base material layer 2 is made of a PET base material; the surface layer A1 is coated at the lower end of the base material layer 2, and the surface layer A1 is made of silica gel; the coating of B surface course 3 is in 2 upper ends of substrate layer, and the material of B surface course 3 is OCA glue, and the 3 surfaces of B surface course form concave axle extrusion OCA coating layer 4 and convex axle extrusion OCA coating layer 5 through the protruding axle 8 and the 9 coextrusion of concave axle that set up on last roller 7.
Further, the thickness of substrate layer 2 is 50 ~ 500 um.
Further, the thickness of the surface layer A1 is 60-600 um, and the adhesive force of the surface layer A1 is 50-400 g;
specifically, the coating method of the surface a layer 1 is one of dimple coating, comma coating and extrusion coating, and preferably, the dimple coating method of the surface a layer 1 is the most preferable.
Further, the thickness of the B surface layer 3 is 70-700 um, and the adhesive force of the B surface layer 3 is 500-3500 g.
Example 2
Referring to fig. 2, in the embodiment 2 of the present invention, the coating thickness of the concave-axis extrusion OCA coating layer 4 is 100 to 500um, and the coating thickness of the convex-axis extrusion OCA coating layer 5 is 50 to 400 um; the thickness of the B surface layer 3 is alternated and is arranged in a zigzag manner.
The working principle of the invention is as follows:
when the AB glue of the curved surface screen protective film of the mobile phone is manufactured, the method mainly comprises the following steps:
firstly, selecting a substrate layer 2 as an AB glue substrate of the mobile phone curved screen protection film;
secondly, coating the surface layer A1 at the lower end of the base material layer 2 in a slightly concave coating mode;
thirdly, coating the surface layer B3 on the upper end of the base material layer 2 after the surface layer A1 is coated, wherein the coating process is as follows: coating an OCA glue layer on a surface layer (3) B, then extruding the surface layer (3) coated with the OCA glue layer by adopting a double roller, wherein the double roller comprises a lower roller (6) and an upper roller (7), a convex shaft (8) is arranged on the upper roller (7), a concave shaft (9) is arranged between two adjacent convex shafts (8) on the upper roller (7), the number of the convex shafts (8) is set according to the screen width of a mobile phone model and the width of a coating machine, the width of the convex shafts (8) and the width of the concave shafts (9) are set according to the unlocking area of the mobile phone screen and the width of the mobile phone screen, the thickness of the convex shafts (8) is set according to the threshold value of ultrasonic unlocking identification of the mobile phone screen, and the;
cutting the AB glue of the prepared mobile phone curved screen protective film into a specific size, and then attaching the AB glue to the tempered glass film 10 after being subjected to hot bending to form the mobile phone curved screen tempered glass film applied to ultrasonic fingerprint unlocking.
In the description of the invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. The utility model provides a AB glue of cell-phone curved surface screen protection film, it includes: a surface course (1), substrate layer (2) and B surface course (3), its characterized in that: the base material layer (2) is a base layer of AB glue of the mobile phone curved screen protection film, and the base material layer (2) is made of a PET base material; the surface layer A (1) is coated at the lower end of the base material layer (2), and the surface layer A (1) is made of silica gel; the B surface layer (3) is coated on the upper end of the base material layer (2), and the material of the B surface layer (3) is OCA glue.
2. The AB glue of the mobile phone curved screen protective film according to claim 1, characterized in that: the thickness of substrate layer (2) is 50 ~ 500 um.
3. The AB glue of the mobile phone curved screen protective film according to claim 1, characterized in that: the thickness of A surface course (1) is 60 ~ 600um, and the adhesion of A surface course (1) is 50 ~ 400 g.
4. The AB glue of the mobile phone curved screen protective film according to claim 1, characterized in that: the thickness of B surface course (3) is 70 ~ 700um, and the adhesion of B surface course (3) is 500 ~ 3500 g.
5. The AB glue of the mobile phone curved screen protective film according to claim 4, characterized in that: and the surface of the B surface layer (3) forms a concave shaft extrusion OCA coating layer (4) and a convex shaft extrusion OCA coating layer (5) through the joint extrusion action of a convex shaft (8) and a concave shaft (9) arranged on the upper roller (7).
6. The AB glue of the mobile phone curved screen protective film according to claim 5, characterized in that: the coating thickness of the concave shaft extrusion OCA coating layer (4) is 100-500 um, and the coating thickness of the convex shaft extrusion OCA coating layer (5) is 50-400 um; the surface layer B (3) is alternately thick and thin and is arranged in a zigzag manner.
CN201910369328.3A 2019-05-05 2019-05-05 AB glue of mobile phone curved surface screen protection film Pending CN111892880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910369328.3A CN111892880A (en) 2019-05-05 2019-05-05 AB glue of mobile phone curved surface screen protection film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910369328.3A CN111892880A (en) 2019-05-05 2019-05-05 AB glue of mobile phone curved surface screen protection film

Publications (1)

Publication Number Publication Date
CN111892880A true CN111892880A (en) 2020-11-06

Family

ID=73169278

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910369328.3A Pending CN111892880A (en) 2019-05-05 2019-05-05 AB glue of mobile phone curved surface screen protection film

Country Status (1)

Country Link
CN (1) CN111892880A (en)

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