Light-shading low-resistance copper foil composite conductive cloth single-sided adhesive tape

Abstract

The utility model discloses a shading low-resistance copper foil composite conductive cloth single-sided adhesive tape. Comprising a copper foil layer, a first conductive ink coating arranged on the lower end face of the copper foil layer in a coating mode, a first conductive adhesive layer arranged on the upper end face of the copper foil layer in a coating mode, a conductive cloth layer arranged on the upper end face of the first conductive adhesive layer in a coating mode and a second conductive ink layer arranged on the upper end face of the conductive cloth layer in a coating mode. The upper end surface of the second conductive ink layer is coated with the second conductive adhesive layer; and the release film layer is adhered to the upper end surface of the second conductive adhesive layer. The adhesive tape has the advantages that the adhesive tape can be used for current transmission, connection and conduction among various electronic elements and module edge covering and shading, and can effectively have shading performance, viscosity, conductivity and anti-bending performance.

Description

Technical Field

[0001] The utility model relates to the field of tapes, in particular to a single-sided tape of a light-shielding low-resistance copper foil composite conductive cloth. Background Art

[0002] With the increasing demand in the smart electronic product market for reducing the visible border area of the screen, and the increasing number of folding screen products on the market, there are high requirements for edge light-shielding property, conductivity, adhesiveness, and product anti-bending performance. When the existing tapes are applied to electronic products, the light-shielding property is lacking, and at the same time, a large resistance value is found during the conduction process, and they are not anti-bending during use.

[0003] In view of this, it is necessary to provide a single-sided tape of a light-shielding low-resistance copper foil composite conductive cloth. Summary of the Invention

[0004] A single-sided tape of a light-shielding low-resistance copper foil composite conductive cloth provided by the utility model effectively solves the problem that the existing tapes cannot simultaneously ensure good light-shielding property, adhesiveness, conductivity, and anti-bending property of electronic products.

[0005] The technical solution adopted by the utility model is as follows:

[0006] The single-sided tape of a light-shielding low-resistance copper foil composite conductive cloth includes a copper foil layer, a first conductive ink layer coated on the lower end face of the copper foil layer, a first conductive adhesive layer coated on the upper end face of the copper foil layer, a conductive cloth layer coated on the upper end face of the first conductive adhesive layer, a second conductive ink layer coated on the upper end face of the conductive cloth layer, a second conductive adhesive layer coated on the upper end face of the second conductive ink layer, and a release film layer adhesively provided on the upper end face of the second conductive adhesive layer.

[0007] Furthermore: The thickness range of the conductive cloth layer is 0.010 mm to 0.150 mm.

[0008] Furthermore: The thickness range of the copper foil layer is 0.005 mm to 0.010 mm.

[0009] Furthermore: The thickness ranges of both the first conductive adhesive layer and the second conductive adhesive layer are 0.010 mm to 0.100 mm.

[0010] Furthermore: The thicknesses of both the first conductive ink layer and the second conductive ink layer are 0.002 mm to 0.005 mm.

[0011] Advantageous Effects of the Utility Model: The tape can be used for current transmission connection and conduction between various electronic components and for light-shielding of module edges, and can effectively combine light-shielding property, adhesiveness, conductivity, and anti-bending performance. Description of the Drawings

[0012] Figure 1 The overall schematic diagram of the light-shielding low-resistance copper foil composite conductive cloth single-sided tape provided by the embodiment of the present application.

[0013] In the figure, the markings are: 1. Copper foil layer; 2. First conductive ink coating; 3. First conductive adhesive layer; 4. Conductive cloth layer; 5. Second conductive ink layer; 6. Second conductive adhesive layer; 7. Release film layer. Specific embodiments

[0014] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0015] As Figure 1 shown, the light-shielding low-resistance copper foil composite conductive cloth single-sided tape provided by the embodiment of the present application has a structure including a copper foil layer 1, a first conductive ink coating 2 coated on the lower end surface of the copper foil layer 1, a first conductive adhesive layer 3 coated on the upper end surface of the copper foil layer 1, a conductive cloth layer 4 coated on the upper end surface of the first conductive adhesive layer 3, a second conductive ink layer 5 coated on the upper end surface of the conductive cloth layer 4, a second conductive adhesive layer 6 coated on the upper end surface of the second conductive ink layer 5, and a release film layer 7 adhesively disposed on the upper end surface of the second conductive adhesive layer 6.

[0016] During actual use, the release film layer 7 is torn off, so that the second conductive adhesive layer 6 is adhered to the electronic product. After adhesion, since the copper foil layer 1, the first conductive adhesive layer 3, the second conductive adhesive layer 6, the first conductive ink layer, the second conductive ink layer 5, and the conductive cloth layer 4 are all conductive, conduction can be achieved. At the same time, light shielding is carried out through the first conductive ink layer and the second conductive ink layer 5. The copper foil plays a supporting role for the entire tape, and can not only conduct electricity but also effectively resist bending. Since the resistance of the conductive cloth in the X-Y and Z directions is <0.01 Ω under 25.4*25.4 mm, the resistance of the entire tape can be effectively reduced.

[0017] In the above design, the tape can be used for current transmission connection and conduction between various electronic components and for light shielding of the module edge, and can effectively combine light shielding, adhesiveness, conductivity, and anti-bending performance.

[0018] Specifically: the thickness range of the conductive cloth layer 4 is 0.010 mm to 0.150 mm.

[0019] In the above design, setting the thickness range of the conductive cloth to 0.010 mm to 0.150 mm can not only ensure the conductive performance but also reduce the resistance through the excellent conductive performance.

[0020] Specifically: the thickness range of the copper foil layer 1 is 0.005 mm to 0.010 mm.

[0021] In the above design, the copper foil layer 1 can not only support the entire tape as a substrate, but also conduct electricity by utilizing the good electrical conductivity of the copper foil.

[0022] Specifically: the thickness ranges of the first conductive adhesive layer 3 and the second conductive adhesive layer 6 are both 0.010 mm to 0.100 mm.

[0023] The conductive adhesive is a combination of acrylic resin and isocyanate curing agent. After adding conductive nickel powder, nickel-coated graphite powder, ethyl acetate and other additives and pre-dispersing them, a conductive coating can be formed by coating and drying.

[0024] In the above design, the thickness ranges of the first conductive adhesive layer 3 and the second conductive adhesive layer 6 can not only meet the requirements of product thinning, but also ensure electrical conductivity.

[0025] Specifically: the thicknesses of the first conductive ink layer and the second conductive ink layer 5 are both 0.002 mm to 0.005 mm.

[0026] The conductive ink is formed by dispersing carbon black with acrylic resin and solvent through a dispersion process, and then coating and drying.

[0027] In the above design, the thickness design of the first conductive ink layer and the second conductive ink layer 5 is convenient for meeting the requirements of product thinning, and can also meet the effects of electrical conductivity and effective light shielding.

[0028] For further detailed description, it should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. Light-shielding low-resistance copper foil composite conductive fabric single-sided tape, characterized by: The invention comprises a copper foil layer (1), a No. 1 conductive ink coating (2) coated on the lower end surface of the copper foil layer (1), a No. 1 conductive adhesive layer (3) coated on the upper end surface of the copper foil layer (1), a conductive cloth layer (4) coated on the upper end surface of the No. 1 conductive adhesive layer (3), a No. 2 conductive ink layer (5) coated on the upper end surface of the conductive cloth layer (4), a No. 2 conductive adhesive layer (6) coated on the upper end surface of the No. 2 conductive ink layer (5), and a release film layer (7) bonded to the upper end surface of the No. 2 conductive adhesive layer (6).

2. The light-shielding low-resistance copper foil composite conductive fabric single-sided tape according to claim 1, characterized in that: The thickness of the conductive cloth layer (4) ranges from 0.010 mm to 0.150 mm.

3. The light-shielding low-resistance copper foil composite conductive fabric single-sided tape according to claim 1, characterized in that: The thickness of the copper foil layer (1) ranges from 0.005 mm to 0.010 mm.

4. The light-shielding low-resistance copper foil composite conductive fabric single-sided tape according to claim 1, characterized in that: The thickness of the first conductive adhesive layer (3) and the second conductive adhesive layer (6) are both in the range of 0.010 mm to 0.100 mm.

5. The light-shielding low-resistance copper foil composite conductive fabric single-sided tape according to claim 1, characterized in that: The thickness of the first conductive ink layer and the second conductive ink layer (5) are both 0.002 mm to 0.005 mm.

Images