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Double-sided tape for shading and reflection

A double-sided tape and adhesive technology, used in applications, adhesives, household appliances, etc., can solve the problems of adhesive stability and poor dispersion, and achieve the effect of excellent insulation

Inactive Publication Date: 2014-08-13
新纶电子材料(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the black filler is added to the adhesive for dispersion, the dispersion is not good, the problem of insulation and the stability of the adhesive are all big problems
In the same way, white fillers are not well dispersed when added to the adhesive, which will also cause problems with the stability of the adhesive.

Method used

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  • Double-sided tape for shading and reflection
  • Double-sided tape for shading and reflection
  • Double-sided tape for shading and reflection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment provides a double-sided adhesive tape for light-shielding reflection, including a base material layer, a first adhesive layer and a second adhesive layer, and the first adhesive layer and the second adhesive layer are respectively arranged on the base material On both surfaces of the layer, the substrate layer is a white PET film, and a black ink layer is set on any side thereof. The white PET film is FW2-13 PET film produced by Teijin DuPont Film Ltd. with a thickness of 13 μm, the thickness of the black ink layer is 7 μm, and the coating thickness of the first adhesive layer and the second adhesive layer is 15 μm.

[0042] The black ink layer includes the following components: 9.5 parts by weight of carbon black with a particle size of 0.1-0.4 μm, 17.0 parts by weight of polyurethane resin, 4.0 parts by weight of isocyanate hardener (L75 produced by Bayer), solvent (toluene: methyl ethyl ketone = 1 :2) 97.5 parts by weight.

[0043] The above-mentione...

Embodiment 2

[0052] This embodiment provides a double-sided adhesive tape for light-shielding reflection, including a base material layer, a first adhesive layer and a second adhesive layer, and the first adhesive layer and the second adhesive layer are respectively arranged on the base material The two surfaces of the layer, the substrate layer is that a black ink layer is set on either side of the white PET film. The white PET film is FW2-13 PET film produced by Teijin DuPont Film Ltd. with a thickness of 13 μm, the thickness of the black ink layer is 7 μm, and the adhesive coated on the first adhesive layer and the second adhesive layer is new The HT-6502D-2 adhesive produced by Zong Industrial Co., Ltd. has a coating thickness of 15 μm.

[0053] The black ink layer includes the following components: 9.5 parts by weight of carbon black with a particle size of 0.1-0.4 μm, 17.0 parts by weight of polyurethane resin, 4.0 parts by weight of isocyanate hardener (L75 produced by Bayer), solve...

Embodiment 3

[0061] This embodiment provides a double-sided adhesive tape for light-shielding reflection, including a base material layer, a first adhesive layer and a second adhesive layer, and the first adhesive layer and the second adhesive layer are respectively arranged on the base material The two surfaces of the layer, the substrate layer is that a black ink layer is set on either side of the white PET film. The white PET film is FW2-13 PET film produced by Teijin DuPont Film Ltd. with a thickness of 13 μm, the thickness of the black ink layer is 6 μm, and the adhesives coated on the first adhesive layer and the second adhesive layer are new The HT-6502D-2 adhesive produced by Zong Industrial Co., Ltd. has a coating thickness of 20 μm.

[0062] The black ink layer includes the following components: 10.5 parts by weight of carbon black with a particle size of 0.1-0.4 μm, 17.5 parts by weight of polyurethane resin, 4.0 parts by weight of isocyanate hardener (L75 produced by Bayer), so...

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Abstract

The invention provides a double-sided tape for shading and reflection. The double-sided tape comprises a substrate layer, a first adhesive layer and a second adhesive layer, wherein the first adhesive layer and the second adhesive layer are respectively arranged on two surfaces of the substrate layer, any of the two surfaces of the substrate layer is provided with a white PET film of a black ink layer, the Hunter whiteness of the PET film is 80.0 to 85.0%, and the thickness of the PET film is 12 to 15 mu m. The invention further provides a preparation method for the double-sided tape for shading and reflection. The double-sided tape for shading and reflection has light reflectivity and light shielding performance, can meet a variety of performance requirements due to upsizing and thinning of mobile equipment and has excellent insulating properties, resistance to reflex action and stress relaxation performance.

Description

technical field [0001] The invention relates to a double-sided adhesive tape for shading and reflection, and belongs to the technical field of bonding technology of electronic accessories. Background technique [0002] Taking electronic equipment represented by mobile phones, PDAs, and car navigation equipment as examples, the internal and external light dual-purpose liquid crystal displays used include liquid crystal display modules and backlight modules, and these two modules are passed. A double-sided adhesive tape is used for adhesive fixing. In order to meet the needs of the product, this double-sided tape requires the performance of reflecting and blocking light of specific wavelengths. The light reflection performance must be able to reflect the light from the backlight module with high efficiency, so as to improve the brightness and reduce energy consumption on the basis of effective use of reflected light; the light-shielding performance can prevent the light from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J133/08C09D11/037
Inventor 向如亭龙冲
Owner 新纶电子材料(常州)有限公司
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