1. Technical Field
The present disclosure relates to protection films and, particularly, to a protection film for protecting a lens module and a method for manufacturing the protection film.
2. Description of Related Art
To protect a lens modules from being scratched during an assembly of the lens modules into electronic products such as cell phones or cameras, a protection film is employed. The protection film usually includes a generally circular main portion having an adhesive layer adhered to the lens module and a generally strip-shaped non-adhesive handle portion extending from the main portion for conveniently removing the protection film from the lens module. In use, the protection film needs to be removed from the lens module, and is removed by pulling the handle portion. However, as the handle portion is pulled, the adhesive layer is readily broken at a joint between the main portion and the handle portion. A part of adhesive layer may remain on the lens module, which contaminates the lens module. Therefore, it is desirable to provide a protection film and a method for manufacturing the protection film which can overcome the above-mentioned problems.
Many aspects of the present disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the views.
The base film 10 is made of electrostatic absorption material, for example, polyethylene (PE) or polyethylene terephthalate (PET). In the embodiment, the base film 10 is a transparent film and is made of PET. The base film 10 includes a substantially circular main portion 101 and a substantially rectangular handle portion 102 extending from a periphery of the main portion 101. The main portion 101 and the handle portion 102 include a pair of opposite first surfaces 11.
The adhesive 20 are uniformly coated on one of the first surfaces 11 of the base film 10. In the embodiment, the adhesive 20 are continuously coated on the main portion 101 and the handle portion 102. The adhesive 20 is made from acrylic acid ester and unsaturated hydrocarbon. An area of the adhesive 20 is less than an area of each first surface 11, leaving a margin area 1011 surrounding the adhesive 20. The margin area 1011 is not coated with the adhesive 20 and formed on the main portion 101 and the handle portion 102.
The partition film 30 is also made of PET and includes a pair of opposite second surfaces 31. An area of each second surface 31 is greater than an area of the adhesive 20 coated on the handle portion 102. One of the second surfaces 31 is adhered to a portion of the adhesive 20 coated on the handle portion 102. The other second surface 31 faces away from the adhesive 20 and defines a plurality of grooves 301. The grooves 301 are uniformly distributed and parallel to each other.
During assembling the lens module to electronic products, the adhesive 20 coated on the main portion 101 is adhered to the lens module such that the main portion 101 can protect the lens module from being scratched. The partition film 30 can prevent the handle portion 102 from adhering to the lens module. After assembling, the handle portion 102 is clamped by a tool or fingers of an operator through pressing on the first surface 11 opposite to the adhesive 20 and the second surface 31 opposite to the adhesive 20, then the handle portion 102 is pulled such the adhesive 20 coated on the main portion 101 can be separated from the lens module.
In alternative embodiment, the main portion 101 and the handle portion 102 do not form the margin portion 1011. The adhesive 20 is completely coated on one of the first surface 11 of the main portion 101 and the handle portion 102.
In the embodiment, the adhesive 20 is continuously coated on the main portion 101 and the handle portion 102, namely a portion of the adhesive 20 coated on the main portion 101 is not separated from another portion of the adhesive 20 coated on the handle portion 102. Therefore, when pulling the handle portion 102, the adhesive 20 coating on the main portion 101 is prevented from leaving on the lens module.
In the embodiment, friction between the tool or the fingers of the operator and the second surface 31 opposite to the adhesive 20 increases when pulling the handle portion 102 because of the grooves 301. In other embodiment, the second surface 31 facing away from the adhesive 20 can be ground.
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It will be understood that the above particular embodiments are shown and described by way of illustration only. The principles and the features of the present disclosure may be employed in various and numerous embodiment thereof without departing from the scope of the disclosure as claimed. The above-described embodiments illustrate the possible scope of the disclosure but do not restrict the scope of the disclosure.
Number | Date | Country | Kind |
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201210067660.2 | Mar 2012 | CN | national |