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Protective film and method for producing the same

A technology of protective film and bottom film, applied in chemical instruments and methods, film/sheet adhesives, layered products, etc., can solve problems such as affecting imaging quality and contaminating lenses.

Inactive Publication Date: 2016-12-28
SHENZHEN FENGZHAO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the pulling process, the adhesive on the cover part close to the handle receives different pulling force than the adhesive far away from the handle, and the adhesive layer often breaks and part of it remains on the lens, polluting the lens and affecting the imaging quality

Method used

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  • Protective film and method for producing the same
  • Protective film and method for producing the same
  • Protective film and method for producing the same

Examples

Experimental program
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Embodiment Construction

[0020] see Figure 1 to Figure 3 , shows a protective film 100 provided by an embodiment of the present invention, which is used to stick to a lens (not shown) to protect the lens. The protective film 100 includes a base film 10 , an adhesive layer 20 and an isolation film 30 .

[0021] The bottom film 10 is made of electrostatic adsorption materials such as polyethylene (Polyethylene, PE) and polyethylene terephthalate (Polyethylene terephthalate, PET). In this embodiment, the base film 10 is a transparent film made of PET and includes a cover part 101 and a handle part 102 connected to the cover part 101 . The shape of the cover part 101 roughly corresponds to that of the lens and is roughly circular. The handle portion 102 is roughly square.

[0022] The adhesive layer 20 is evenly coated on one surface of the base film 10 . The adhesive layer 20 is continuously coated on the covering part 101 and the handle part 102 . In this embodiment, the adhesive layer 20 is an ac...

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PUM

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Abstract

A protective film is used to protect a lens, and the protective film includes a base film, an adhesive layer and an isolation film. The bottom film includes a covering part and a handle part. The adhesive layer is viscous and is continuously coated on the covering part and the handle part. The adhesive layer of the covering part is used for attaching to the lens. The isolation film is attached to the adhesive layer of the handle to prevent the adhesive layer of the handle from sticking to the lens. The adhesive layer of the present invention is continuously coated on the covering part and the handle part, and when the protective film is torn off, the tensile force on the adhesive layer on the covering part is more uniform, which can avoid the The adhesive layer of the lens breaks and remains on the lens. The present invention also provides a method for manufacturing the above protective film.

Description

technical field [0001] The invention relates to a protective film, in particular to a protective film for protecting a lens and a manufacturing method thereof. Background technique [0002] After the lens is assembled into an electronic product, it is usually necessary to attach a protective film to the lens to prevent damage to the lens during subsequent assembly or transportation of the electronic product. After the electronic product is assembled, the protective film needs to be removed to restore the lens. The existing protective film generally includes a cover part and a handle part which are connected. The cover part is adhered to the lens with glue, and the handle part is exposed outside the lens, so no glue is applied to prevent the handle part from adhering to the lens, and to facilitate clamping. When tearing off the protective film, use a holding tool such as tweezers or hold the handle with your fingers to pull the protective film off the lens. However, during ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C09J7/20
CPCC09J2467/006B32B7/12B32B27/36B32B3/30C09J7/20Y10T156/1052
Inventor 林颖铭叶勇
Owner SHENZHEN FENGZHAO NEW MATERIAL CO LTD
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