LAMINATE FILM, FOREIGN SUBSTANCE REMOVAL METHOD FOR OPTICAL FILM AND MANUFACTURING METHOD OF OPTICAL FILM LAMINATE

PROBLEM TO BE SOLVED: To provide a laminate film capable of sufficiently removing a foreign substance on a surface of an optical film while suppressing a damage to the optical film when removing the foreign substance.SOLUTION: A laminate film includes an optical film made of resin, and a protective...

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Bibliographische Detailangaben
Hauptverfasser:	TSUCHINAGA MAKOTO, TOKUCHI NAOKI, MORINAGA SOJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY CLEANING CLEANING IN GENERAL DYES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS PERFORMING OPERATIONS POLISHES PREVENTION OF FOULING IN GENERAL TRANSPORTING USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a laminate film capable of sufficiently removing a foreign substance on a surface of an optical film while suppressing a damage to the optical film when removing the foreign substance.SOLUTION: A laminate film includes an optical film made of resin, and a protective film adhered in a peelable manner onto the optical film and laminated on the optical film. A peel force of the protective film from the optical film is 0.08 N/20 mm to 0.2 N/20 mm when measured by a variable angle peel test at a peeling angle 135° and a peel rate 25 m/min.SELECTED DRAWING: Figure 2 【課題】光学フィルムの表面の異物を十分に除去しつつ、しかも、異物を除去する際の光学フィルムの損傷を抑制し得る積層フィルム等を提供する。【解決手段】樹脂製の光学フィルムと、前記光学フィルムに剥離可能に接着されて前記光学フィルムに積層される保護フィルムとを備え、前記保護フィルムは、剥離角度１３５°、剥離速度２５ｍ／ｍｉｎでの変角度ピール試験で測定したときの前記光学フィルムからの前記保護フィルムの剥離力が、０．０８Ｎ／２０ｍｍ以上０．２Ｎ／２０ｍｍ以下である、積層フィルム。【選択図】図２