Patent ID: 7862876

Claim:
A vacuum heat-insulating material comprising: a core material; and an envelope material covering the core material; wherein the envelope material has an interior reduced in pressure, the envelope material having a lamination structure having a thermal bonding layer, a gas-barrier layer and a protection layer having a radiation-heat-conduction suppressivity; the protection layer using a film for suppressing conduction of radiation heat comprising: a resin film having at least an infrared-ray absorptivity of lower than 25%; an infrared-ray-reflection layer; and an adhesive layer; wherein an infrared-ray reflectivity is 50% or higher, the infrared-ray-reflection layer being a metal foil, wherein the adhesive layer of the protection layer has a bonding area which laminates together the resin film and the infrared-ray-reflection layer and a non-bonding area which does not laminate together the resin film and the infrared-ray-reflection layer.