Method for producing fluid trap for film assemblage

A method for producing a fluid trap for a film assemblage, the film assemblage containing at least one peel-apart type instant film unit and including a body which includes a rectangular parallelepiped box-shaped case body including an exposure opening formed at a top surface thereof and a film unit ejection port formed at a front wall thereof continuous to the top surface, and a film platen accommodated between the top surface and a bottom surface of the case body;

• the film unit including a photosensitive sheet connected to a drawing sheet and accommodated at an upper surface of the film platen such that the photosensitive sheet faces the exposure opening, and an image receiving sheet connected to the drawing sheet via a connecting sheet and accommodated at a lower surface of the film platen;
• the photosensitive sheet, the image receiving sheet and the drawing sheet being disposed such that when a tip of the drawing sheet projecting from the ejection port is pulled, the photosensitive sheet and the image receiving sheet overlap with each other and are pulled out from the ejection port;
• the drawing sheet including a pod for containing developing solution, a spacer for regulating a spreading thickness of the developing solution separably adhered at opposite end portions in a direction substantially perpendicular to a direction in which the image receiving sheet is drawn, and a fluid trap disposed at a spreading terminal end of the spacer;
• the method comprising:
• passing a plate-shaped paper material having a uniform width and a uniform thickness through a clearance formed between a pair of rollers;
• compressing the plate-shaped paper material at width-directional opposite end portions thereof such that a thickness of the paper material gradually decreases from a central portion thereof toward opposite ends thereof, and at the same time, cutting the paper material along a longitudinal direction thereof to a predetermined width;
• and
• cutting the paper material along the width direction thereof at predetermined intervals with respect to the longitudinal direction thereof.