PET anti-explosion film, anti-explosion glass rear cover and preparing process of anti-explosion glass rear cover

A technology of explosion-proof glass and explosion-proof film, which is applied in the direction of film/sheet adhesive, sub-office equipment, lamination, etc. It can solve the problems of poor mobile phone signal, discoloration of glass back cover, easy oxidation of electroplating layer, etc., and achieve good efficiency The effect of high efficiency and low cost

Pending Publication Date: 2019-08-09
深圳华硕新材料应用科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, electroplating on glass has low efficiency and yield
Moreover, the electroplating layer is easy to oxidize, and the glass back cover will change color after long-term use, which will affect the appearance
And the electroplating layer with metal will produce electromagnetic shielding, resulting in poor mobile phone signal and unable to realize wireless charging function

Method used

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  • PET anti-explosion film, anti-explosion glass rear cover and preparing process of anti-explosion glass rear cover
  • PET anti-explosion film, anti-explosion glass rear cover and preparing process of anti-explosion glass rear cover

Examples

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no. 1 example

[0024] like figure 1 As shown, the first embodiment provided by the present invention, the PET explosion-proof film, includes an OCA optical adhesive layer 1 , a metallic luster PET base layer 2 , a UV transfer adhesive layer 3 and a printing layer 4 . The OCA optical adhesive layer 1 has a thickness of 20-30um; the metal luster PET base layer 2 is the PICASUS film of TORAY company or the blue light film of SKC company, and the thickness is 30-145um. Preferably, in the first embodiment, the OCA optical adhesive layer 1 has a thickness of 25 um, and the metal luster PET base layer 2 is a PICASUS film with a thickness of 70 um.

[0025] like figure 2 As shown, the second embodiment provided by the present invention, the explosion-proof glass rear cover, includes a glass cover plate 5 and a PET explosion-proof film as described in the first embodiment; the glass cover plate 5 is attached to the upper surface of the OCA optical adhesive layer 1 . The glass cover 5 is a 3D glas...

no. 3 example

[0026] The third embodiment provided by the present invention is a preparation process of the explosion-proof glass back cover as described in the second embodiment, the steps include: a. bonding the UV transfer adhesive layer 3 to the metallic luster PET through the UV transfer process The lower surface of the base layer 2; b. The printing layer 4 is formed on the lower surface of the UV transfer adhesive layer 3; c. On the roll-to-roll laminating machine, the light release film on the OCA optical adhesive layer 1 is peeled off by the waste discharge roller Finally, the OCA optical adhesive layer 1 is attached to the upper surface of the metallic luster PET base layer 2, and a PET explosion-proof film is obtained; d. the PET explosion-proof film is die-cut; e. the PET explosion-proof film and the The glass cover plate 5 is bonded together, and then degassed to obtain an explosion-proof glass rear cover.

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Abstract

The invention provides a PET anti-explosion film, an anti-explosion glass rear cover and a preparing process of the anti-explosion glass rear cover. The PET anti-explosion film comprises an OCA layer,a metallic luster PET base layer, a UV transfer adhesive layer and a printing layer which are attached from top to bottom. The OCA layer has the thickness of 20-30 micron. The metallic luster PET base layer is a PICASUS film from the TORAY company or a blue light film from the SKC company and has the thickness of 30-145 micron. The PET anti-explosion film is attached to a glass cover plate, and glass splashing happening when the cell phone glass rear cover is broken is prevented; the PET anti-explosion film is particularly suitable for high-stress 3D glass rear covers; through the attaching of the metallic luster PET base layer, the UV transfer adhesive layer and the printing layer, the PET anti-explosion film and the anti-explosion glass rear cover are endowed with the metal effect; compared with the mode of realizing the electroplating decoration effect on the cell phone glass rear cover, the efficiency is higher, cost is low and the effect is better.

Description

technical field [0001] The invention relates to the technical field of PET films, in particular to a PET explosion-proof film, an explosion-proof glass back cover and a preparation process for the explosion-proof glass back cover. Background technique [0002] Nowadays, many high-end mobile phones have begun to use glass back covers. In order to improve the visual effect and the hand feel of mobile phones, 3D glass has been widely used on the glass back covers of mobile phones. [0003] The back cover of the mobile phone made of 3D glass is difficult to process due to its curvature, and the existence of stress after forming makes the possibility of glass fragments splashing due to falling and breaking the screen greatly increased. [0004] In order to improve the visual effect of the mobile phone, it needs to be decorated on the glass back cover. However, due to the high hardness of the glass itself, very low glass transition temperature and surface energy, inorganic materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/06B32B17/10B32B7/12B32B33/00B32B7/06B32B37/00B32B38/14C09J7/20C09J7/25H04M1/18
CPCB32B27/36B32B27/06B32B17/10B32B7/12B32B33/00B32B7/06B32B37/003B32B38/145C09J7/20C09J7/255H04M1/185C09J2467/006
Inventor 余的军黄业勇
Owner 深圳华硕新材料应用科技有限公司
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