Patent ID: 7166342
Filing Date: 2007-01-23
Classification: B29C,B29D,B29K,B29L,B41M,C08J,Y10S,Y10T

Abstract:
1. A heat-shrinkable resin film for a label characterized in that: the film consists of a monolayer polyester resin film or a polystyrene resin film, the film has a heat shrinkage in the maximum shrinkage direction of 40% or higher, when a 10 cm×10 cm square sample cut out thereof is immersed in water at 85° C. for 10 seconds, pulled out, subsequently immersed in water at 25° C. for 10 seconds, and then pulled out; the film has a content of nitrogen atoms in a surface of the film of 0.1% to 3.0%; a wet tension of the surface of the film is 36 mN/m or higher and, both surfaces of the film exhibit a peeling strength of 5N/15 mm wide or lower after the surfaces of the film are bonded to each other by heat sealing at 75° C.