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Anti-reverse-warping shading adhesive tape capable of being removed through stretching and preparation method of anti-reverse-warping shading adhesive tape

A shading tape and removal technology, applied in the direction of adhesives, film/sheet adhesives, non-polymer adhesive additives, etc., can solve the problems of poor anti-warping ability and difficult removal of shading tapes. Good fit and stress relief properties, improved anti-warpage, high tension effects

Pending Publication Date: 2021-08-31
佳普电子新材料(连云港)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a light-shielding adhesive tape that can be easily stretched and removed with anti-warping and a preparation method thereof, which solves the problems that the existing light-shielding tape is not easy to remove and has poor anti-warping ability. After removing the blackout glue, there is no residual glue on the surface of the part

Method used

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  • Anti-reverse-warping shading adhesive tape capable of being removed through stretching and preparation method of anti-reverse-warping shading adhesive tape
  • Anti-reverse-warping shading adhesive tape capable of being removed through stretching and preparation method of anti-reverse-warping shading adhesive tape

Examples

Experimental program
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Effect test

Embodiment 1

[0039] see figure 1 As shown, an anti-warping and removable light-shielding adhesive tape includes a black base material layer 13, and the black base material layer 13 preferably uses a TPU film as a base material, and the upper and lower sides of the black base material layer 13 Both are provided with an acrylic glue layer 12, and the acrylic glue layer 12 is provided with a release layer 11 on the side away from the black substrate layer 13, and the release layer 11 is a release film or release paper.

[0040] In this embodiment, the black substrate layer 13 is black, and its light transmittance is 0%; the thickness of the black substrate layer 13 is 20 μm-50 μm, the tensile strength is 12Mpa-17Mpa, and the elongation at break is 500%-800%.

[0041] In this embodiment, the thickness of the acrylic glue layer 12 is 10 μm-30 μm, and the peeling force is 1300 g / in-1700 g / in; several microspheres 14 are added in the acrylic glue layer 12, and the microspheres 14 are glass Micro...

Embodiment 2

[0051] see figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the light-shielding tape is a single-sided light-shielding tape, including a black base material layer 13, and an acrylic glue layer 12 is provided on the upper or lower side of the black base material layer 13, and the acrylic The glue layer 12 is provided with a release layer 11 on a side away from the black base material layer 13, and the release layer 11 is a release film or a release paper. In this embodiment, the black base material layer 13 is made of black TPU material, and its light transmittance is 0%; the thickness of the black base material layer 13 is 20 μm-50 μm, the tensile strength is 12Mpa-17Mpa, and the elongation at break is 500%- 800%.

[0052] In this embodiment, the thickness of the acrylic glue layer 12 is 10 μm-30 μm, and the peeling force is 1300 g / in-1700 g / in; several microspheres 14 are added in the acrylic glue layer 12, and the microspheres 14 are glass...

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Abstract

The invention provides an anti-warping shading adhesive tape capable of being removed through stretching. The adhesive tape comprises a black base material layer, an acrylic glue layer is arranged on the upper side or the lower side of the black base material layer, or acrylic glue layers are arranged on the upper side and the lower side of the black base material layer, a release layer is arranged on the side, away from the black base material layer, of the acrylic glue layer, and a plurality of microspheres are arranged in the acrylic glue layer. The problems that an existing shading adhesive tape is not easy to remove and poor in anti-warping capacity are solved, and meanwhile no residual adhesive exists on the surface of a part after the shading adhesive is removed.

Description

technical field [0001] The invention relates to the technical field of electronic product original shielding tape, in particular to an anti-warping, stretchable and removable light-shielding tape and a preparation method thereof. Background technique [0002] With the popularization of electronic products such as smartphones and tablet computers, tapes play an irreplaceable role in the fixing of electronic components and other equipment; shading tape is a black single-sided or double-sided tape with light-shielding function, mainly used for fixing LCD display and backlight assembly with excellent shielding and insulated wires. [0003] At present, mobile phone screens are developing in the direction of curved narrow borders, which means that the light-shielding tape needs to have excellent anti-warping performance. The liquid crystal display and the backlight module are prone to disengagement phenomenon when the existing light-shielding tape is attached to the curved narrow...

Claims

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Application Information

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IPC IPC(8): C09J7/25C09J7/30C09J133/12C09J11/04C09J11/00
CPCC09J7/25C09J7/30C09J133/12C09J11/04C09J11/00C09J2301/122C09J2301/124C09J2475/006C09J2433/00C09J2301/412C09J2301/502
Inventor 张喜悦
Owner 佳普电子新材料(连云港)有限公司
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