SEAL, METHOD OF MANUFACTURING THE SEAL AND SEAL FOR SEALING PHOTOGRAPHIC ROLL FILM

摘要

PROBLEM TO BE SOLVED: To stabilize adhesion of seals, such as seals for sealing. SOLUTION: A sealing seal 5 is rolled on the outer peripheral surfaces of a photographic roll film, and loosening of the rolled film and shading paper is prevented by bonding a heat adhesive layer 8a formed at one end of the seal 5 to the surface of the shading paper and bonding a heat adhesive layer 8b formed at the other end to the surface of the seal 5. The layers 8a and 8b consists of a large number of small dots 12 of a heat adhesive. The dots 12 are applied by gravure application. Since each dot 12 consists of single cell, the size and applied thickness of the dots 12 are uniform, resulting in even adhesion and thereby stabilized adhesion of the seal 5. COPYRIGHT: (C)2005,JPO&NCIPI