Surface protection film and optical part bonded with the surface protection film

A surface protection film, single-sided technology, used in optical elements, optics, film/sheet adhesives, etc., can solve the problems of air bubbles mixed in the adhesive layer, surface protection film separation, and reduced bonding area, etc. Reliable protection, less pollution, and production efficiency
CN104419338BActive Publication Date: 2016-09-14FUJIMORI KOGYO CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUJIMORI KOGYO CO LTD
Publication Date
2016-09-14

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Abstract

PROBLEM TO BE SOLVED: To provide a surface protective film that can be used even for an optical film having a rugged surface, causes little contamination on an adherend, maintains low contamination property on an adherend with time, and has excellent peeling antistatic performance while avoiding degradation with time, and to provide an optical component using the surface protective film.SOLUTION: A surface protective film 10 comprises: a substrate film 1 made of a transparent resin and having a pressure-sensitive adhesive layer 2 formed on one surface of the substrate film 1; and a release film 5 having a release agent layer 4 laminated on the pressure-sensitive adhesive layer 2. The release film 5 is obtained by depositing on one surface of a resin film 3, the release agent layer 4 comprising a release agent essentially comprising dimethyl polysiloxane and an antistatic agent that does not react with the release agent. A component of the antistatic agent is an ionic compound having a melting point of lower than 30°C. The component of the antistatic agent 7 is transferred from the release film 5 to the surface of the pressure-sensitive adhesive layer 2, which decreases a peeling charge voltage upon peeling the pressure-sensitive adhesive layer 2 from an adherend.
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Description

technical field

[0001] The present invention relates to a surface protection film bonded to the surface of optical components (hereinafter, sometimes referred to as "optical film") such as polarizing plates, retardation plates, and lens films for displays. More specifically, the present invention provides a surface protection film with less contamination to an adherend, a surface protection film having excellent anti-peeling static performance without deterioration over time, and a product bonded with the surface protection film. optics. Background technique

[0002] At present, when manufacturing and transporting optical films such as polarizing plates, retardation plates, lens films for displays, anti-reflection films, hard coat films, transparent conductive films for touch panels, and optical products such as displays using them, A surface protective film is bonded to the surface of the optical film to prevent surface contamination and scratches in subsequent steps. In ...

Claims

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