| 摘要 |
PROBLEM TO BE SOLVED: To provide an instant film pack by which light fogging caused by the entrance of external light can be surely prevented. SOLUTION: A coated part 14a uniformly coated with hotmelt adhesive in a U-shape is formed on the back surface of a light shielding flap 14. When the film pack is manufactured, the flap 14 adheres to a discharge port in a specified adhering pattern with the hotmelt by a melting iron on which the protrusion of a fixed pattern is formed in a line, so that an adhering part 14b is formed. As to the adhering pattern of the part 14b actually adhering to the discharge port out of the part 14a; the ratio of a rectangular adhering part and a non-adhering part is 1:1. Thus, since the part 14b actually adhering to the discharge port with the hotmelt is intermittently linearly formed, the flap 14 is prevented from being wrinkled and shrunk even in the case of passing large temperature change, so that the light fogging is not caused by the entering of the external light from both ends of the discharge port.
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