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Protection film used for surface of NFC and preparation method of protection film

A technology of protective film and base material layer, applied in the field of protective film on NFC surface and its preparation, can solve the problems of affecting the service life, complex chip structure, affecting the reception of mobile phone communication signals, etc., to achieve enhanced adhesion, extended service life, Enhance the effect of the shading effect

Active Publication Date: 2016-04-13
NINGBO SOKEN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The NFC chip used in the mobile phone is very small, and the internal structure of the chip is complex. Once the surface is scratched, damp, etc., it will affect the payment function of the NFC. Moreover, the NFC contains electromagnetic shielding materials, which will affect the reception of mobile phone communication signals. Thus affecting the normal operation of the mobile phone
In addition, when the mobile phone is in operation, it will generate a lot of heat, and the long-term high temperature environment of the NFC chip will affect its service life

Method used

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  • Protection film used for surface of NFC and preparation method of protection film
  • Protection film used for surface of NFC and preparation method of protection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, a protective film for the surface of NFC includes a PET substrate layer 1, an adhesive layer 4 provided on one side of the PET substrate 1, and a release layer attached to the adhesive layer 4 The film layer 5, the other side of the PET substrate layer 1 is provided with a black ink layer 2. The black ink layer 2 is coated with a matte oil layer 3, which is formed by forming a film of an organic matting agent, black ink The layer 2 contains aluminum compounds, the matte oil layer 3 has a thickness of 1 μm, the black ink layer has a thickness of 2 μm, the substrate layer 1 is 4.5 μm PET, the adhesive layer 4 has a thickness of 3 μm, and the release film layer 5 has a thickness of 25 μm. In the adhesive composition used in the above-mentioned adhesive layer, 100 parts of (meth)acrylic copolymer SK-1852 (produced by Soken Chemical Co., Ltd.), carbodiimide crosslinking agent XR-201 (Shanghai Xirun Chemical Technology Co., Ltd., the same below) 0.0...

Embodiment 2

[0029] A protective film for NFC surface, comprising a PET substrate layer, an adhesive layer arranged on one side of the PET substrate layer, a release film layer attached to the adhesive layer, and a PET substrate layer A black ink layer is provided on the other side of the black ink layer. The black ink layer is coated with a matte oil layer. The matte oil layer is made of organic matting agent. The black ink layer contains aluminum compounds. The thickness of the matte oil layer is 2μm. The thickness of the black ink layer is 2 μm, the substrate layer is 4.5 μm PET, the thickness of the adhesive layer is 4 μm, and the thickness of the release layer is 38 μm. In the adhesive composition used in the adhesive layer, 100 parts of (meth)acrylic copolymer SK-1852, carbodiimide crosslinking agent XR-2010.3 parts, isocyanate crosslinking agent L-450.05 parts, matt oil layer The organic matting agent 9000 is used, and the black ink layer is ink NB300794. The content of XCP-1002 in t...

Embodiment 3

[0033] A protective film for the surface of NFC, comprising a PET substrate layer, an adhesive layer arranged on one side of the PET substrate layer, a release film layer attached to the adhesive layer, and a PET substrate layer A black ink layer is provided on the other side of the black ink layer. The black ink layer is coated with a matte oil layer. The matte oil layer is made of organic matting agent. The black ink layer contains aluminum compounds. The thickness of the matte oil layer is 2μm. The thickness of the black ink layer is 3 μm, the substrate layer is 4.5 μm PET, the thickness of the adhesive layer is 5 μm, and the thickness of the release layer is 50 μm. In the adhesive composition used in the adhesive layer, 100 parts of (meth)acrylic copolymer SK-1852, carbodiimide crosslinking agent XR-2013 parts, and isocyanate crosslinking agent L-450.5 parts are in the adhesive composition. The black ink layer uses ink NB300794, the matte oil layer uses organic matting agen...

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Abstract

The invention relates to a protection film used for the surface of NFC. The protection film comprises a PET base material layer, an adhesive layer arranged on one side of the PET base material layer and a release film layer attached to the adhesive layer. A black ink layer is arranged on the other side of the PET base material layer, the black ink layer is coated with a matte oil layer which is formed by film formation of an organic delustering agent, the black ink layer contains 0.5%-0.8% of aluminum compound, and the mean grain size of the aluminum compound ranges from 0.2 mm to 0.5 mm. The invention further relates to a preparation method of the protection film. The matte oil layer prevents fingerprints and scratches, meanwhile, the protection film has the functions of resisting solvents, achieving heat radiation and the like, and the service life of an NFC chip can be effectively prolonged. In addition, the aluminum compound is added to the black ink layer, waves, interfering with communication message receiving of a mobile phone, sent by the NFC chip can be shielded, it is guaranteed that the adhesive force of the adhesive layer of the protection film is moderate, the protection film can be completely attached to the surface of NFC, and adhesive residues or other pollution cannot be caused to the surface of NFC after the protection film is removed.

Description

Technical field [0001] The invention relates to the field of protective films, in particular to a protective film used on the surface of an NFC and a preparation method thereof. Background technique [0002] NFC technology (NearFieldCommunication, near field communication), also known as short-range wireless communication technology, is a short-distance non-contact identification and interconnection technology that allows non-contact point-to-point data transmission between electronic settings, and its use distance is less than or equal to 0.1m, mainly used in digital cameras, computers, mobile phones, PDAs and other electronic equipment. [0003] NFC technology is becoming more and more popular in mobile phones. Its main functions include mobile payment, mobile card swiping, and mobile data transmission. The NFC chip used in the mobile phone is very small and the internal structure of the chip is complicated. Once the surface is affected by scratches, moisture, etc., it will affe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J133/02C09D11/03C09D175/02
CPCC09D11/03C09D175/02C09J7/255C09J133/02C09J2433/00C09J2467/006
Inventor 朱敏芳谢琼颖
Owner NINGBO SOKEN CHEM
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