Surface protection film fabrication method and fabrication apparatus and surface protection film

A method is provided for fabricating a surface protection film that has no rolling defects such as blocking or wrinkling when rolled into a roll, and that, after the film is bonded to an adherend, is rolled into a roll, and stored for long periods of time, does not transfer unevenness or fisheyes on...

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Bibliographische Detailangaben
Hauptverfasser:	Ichinomiya, Takashi, Nakagawa, Kinzou, Furuichi, Nanako, Matsumoto, Tadashi
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	A method is provided for fabricating a surface protection film that has no rolling defects such as blocking or wrinkling when rolled into a roll, and that, after the film is bonded to an adherend, is rolled into a roll, and stored for long periods of time, does not transfer unevenness or fisheyes on the back surface to the adherend. The surface protection film is fabricated as an elastomer by setting the arithmetical mean roughness (Ra) of the surface of a cold roller (4) to no more than 0.2 μm, and the ten point mean roughness (Rz) of the surface of a nip roller (3) to 2-8 μm and the mean distance (Sm) between protrusions and depressions thereof to no more than 90 μm.