Laminated film
AssigneeToray Industries, Inc.
InventorsHaruki Aono, Tadahiko Iwaya, Keiko Sawamoto, Yu Abe
Life of this patent
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Abstract
A laminated film has a resin layer on at least one surface of a polyester film, in which the resin layer is on at least one surface layer, the water contact angle of the resin layer is 85°-100°, inclusive, and |H2-H1|≤1.0 (%) is satisfied, H1 (%) being the haze of the laminated film and H2 (%) being the haze of the laminated film after being immersed in a solvent and subjected to a rub test. This laminated film has excellent coating and releasability properties with respect to ceramic slurry.
Claims15
A laminated film comprising a polyester film and a resin layer disposed on at least one surface thereof, wherein the resin layer is disposed on at least either of outermost layers thereof;
- the resin layer has a water contact angle of 85° or more and 100° or less;
- and the relation |H2-H1|≤1.0 (%) is satisfied where H1 (%) represents haze of the laminated film and H2 (%) represents the haze of the laminated film after a solvent immersion and abrasion test comprising, after immersing the laminated film in methyl ethyl ketone for 10 minutes, a piece of cotton cloth (Haize Gauze NT-4, manufactured by Ozu Corporation) is moved back and forth ten times under a load of 1 kg to abrade the surface of the resin layer using a Gakushin rubbing tester.
Dependencies are inferred from the claim text.