the adhesive 20 after the ff 1 adhesive was melted in water it was applied to the back surface of a web in a solid layer 100 g m 2 thick and then dried the web was processed in the same procedure as sample 1 and the photographic film cassette 2 was assembled a dh597b adhesive trade name nogawa chemical co ltd was used as the adhesive 20 after the dh597b adhesive was melted in water it was applied to the back surface of a web in a solid layer 140 g m 2 and then dried the web was processed in the same procedure as the above and the photographic film cassette 2 was assembled photographic film cassettes 2 of samples i to iii were each subjected to a test of unwinding and winding the photographic film 5 by rotations of the spool 4 as a result of the tests it was confirmed that the light trapping members 10 of each film cassette 2 were not displaced or peeled off and the operations of unwinding and winding the photographic film 5 could be performed smoothly also no sticky portion was observed in the vicinity of the film passage mouth 11 and the inner surfaces of the port portions 8 and 9 and no damage was inflicted to the photographic film 5 further when each web of samples i to iii was unrolled after having been rolled for a period of time no handling or preservation problems such as blocking occurred in order to.