FAR INFRARED RAY RADIATION ADHESIVE SHEET

PURPOSE:To double the radiation dose on the opposite side of a sheet-like material which radiates far IR rays by covering the one surface of said sheet- like material with metal foil so that the far IR rays radiated thereto are reflected to the metal foil side. CONSTITUTION:The far IR radiation sheet 1 is made of ceramics or glass and the like which radiate far IR rays and said sheet is obtd. by forming the sheet of these materials or by once powdering the same and impregnating the powder to paper, fabric, plastic, etc., thereby forming the sheet. The materials which radiate the far IR rays include Al2O3, Cr2O3, Ta2O5, ZrO2, HfB2, etc., belonging to ceramics. A metallic layer 2 is formed on and stuck to the surface of the far IR sheet 1. The metallic materials are adequately aluminum, beryllium, chromium, copper, iron, lead, nickel, etc. A pressure-sensitive adhesive agent is coated on the surface on the side opposite to the side where the metallic layer is formed to the far IR radiation sheet 1 to form an adhesive agent layer 3. The surface is protected by release paper 4.