Self-processing photographic film unit with nonwoven cloth in tr

Details Self-processing photographic film unit with nonwoven cloth in tr Self-processing photographic film unit with nonwoven cloth in tr

1990-06-04

1991-06-25

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Structurally defined

430209, 430216, G03C 300, G03C 554

Patent

active

050266306

ABSTRACT:
A self-processing photographic film unit has a trap member using a nonwoven cloth in order to catch surplus processing solution. This nonwoven cloth is provided with a polymer having carboxyl groups, and a hardening agent for hardening the polymer in order to prevent leakage and change of color to a frame portion of an image forming plane. A nonwoven cloth according to another embodiment includes a fiber of duplex structure which comprises an external layer of a hydrophilic cross linkage polymer and an internal layer of an acrylonitrile type polymer. A further embodiment includes a nonwoven cloth having dimensions of individual gaps or density which are changed stepwise or continuously. This nonwoven cloth is stored in the trap section so that a portion having a small density or large individual gaps is disposed on the inlet side.

REFERENCES:
patent: 2627460 (1953-02-01), Land
patent: 2686716 (1954-08-01), Land
patent: 2983606 (1961-05-01), Rogers
patent: 3294538 (1966-12-01), Downey
patent: 3362819 (1968-01-01), Land
patent: 3589904 (1971-06-01), Chen
patent: 3615436 (1971-10-01), Campbell
patent: 3615540 (1971-10-01), Land et al.
patent: 3619193 (1971-11-01), Knight
patent: 3761269 (1973-09-01), Campbell
patent: 4352879 (1982-10-01), Hara
patent: 4598041 (1986-07-01), Hara et al.

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