Sealant film and laminated film

As a sealant film to be used bonded to the substrate, on one surface of the seal layer containing a antifogging agent polyolefin resin (a1) (A), a cyclic polyolefin resin (b1), other than cyclic polyolefin resin the polyolefin resin (b2) a resin layer containing a has a (B), the content of the resin layer cyclic polyolefin resin contained in the (B) (b1) is 10 to 40 wt%, a cyclic polyolefin system content of the resin other than the polyolefin resin (b2) is a sealant film is 60 to 90 wt%, can achieve suitable anti-fogging properties.