Explosion-proof film in 3D glass back cover
A technology of explosion-proof film and glass, applied in the direction of film/flake adhesives, adhesives, etc., can solve the problems of user injury, easy explosion of glass back cover, difficult pattern, etc., and achieve the effect of simplifying the production process
Inactive Publication Date: 2018-11-13
DONGGUAN HANGDA ELECTRONICS
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Problems solved by technology
However, since the 3D-shaped glass surface will form a certain curved surface, it is difficult to form a pattern on the inner surface of the 3D glass back cover by spraying, transfer printing, etc.
In addition, using a 3D glass back cover to replace the traditional metal or plastic back cover will also bring about another problem, that is, even if the glass material is tempered, its anti-drop ability is still weak. Explosion may cause some damage to the user
Method used
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Embodiment Construction
[0017] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.
[0018] See figure 1 As shown, the present invention is an explosion-proof film inside a 3D glass back cover, which includes: a substrate layer 1, a printed coating 2 and an electrostatic protection film 3 are sequentially attached to the upper surface of the substrate layer 1, and An optical adhesive layer 4 and a release film 5 are sequentially attached to the lower surface of the substrate layer 1 described above.
[0019] The substrate layer 1 is used as the main carrier of the present invention, and it adopts an optical film of PET material with a thickness of 40-60 microns.
[0020] The printing coating 2 is a UV glue coating that can print patterns, and its thickness is 40-60 microns. The components of the printing coating 2 and the weight ratio of each component are:
[0021] UV glue monomer 50-65%;
[0022] Photoinitiator 1-5%
[0023]...
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Abstract
The invention relates to the technical field of protective film products and specifically relates to an explosion-proof film in a 3D glass back cover. The explosion-proof film in a 3D glass back covercomprises a base material layer, wherein a printing coating and an electrostatic protective film sequentially are adhered to the upper surface of the base material layer; an optical adhesive layer and a release film are sequentially adhered to the lower surface of the base material layer; the printing coating is a pattern-printable UV adhesive coating; the optical adhesive layer is a thermocuringoptical adhesive coating. The explosion-proof film provided by the invention has excellent scraping resistance and facilitates UV transfer printing; moreover, the product has high stability and strong viscosity as well as relatively high light transmittance and low haze.
Description
Technical field: [0001] The invention relates to the technical field of protective film products, in particular to an explosion-proof film inside a 3D glass back cover. Background technique: [0002] With the advent of the mobile communication era, various communication signals in mobile communication products such as mobile phones are becoming more and more complex. Various communication signals include not only general communication signals, but also communication transmission signals such as NFC (Near Field Communication) and WiFi. This has better requirements for the mobile phone case. Traditional metal casings will shield various communication signals, resulting in reduced signal sensitivity. Therefore, the glass housing as a non-metallic material will be a good substitute for the metal housing. [0003] In the current mobile communication terminal products, the panels are usually made of glass materials, and with the development of 3D panels such as curved screens, i...
Claims
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IPC IPC(8): C09J7/29C09J7/30
CPCC09J7/29C09J7/30C09J2301/122C09J2301/162C09J2423/046C09J2467/006
Inventor 洪立志
Owner DONGGUAN HANGDA ELECTRONICS