Photographic material containing a non-sensitizing dye absorbing

Details Photographic material containing a non-sensitizing dye absorbing Photographic material containing a non-sensitizing dye absorbing

1994-02-10

1994-11-08

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Antihalation or filter layer containing

430510, 430517, 546167, 546142, G03C 106

Patent

active

053626125

ABSTRACT:
A photographic material is disclosed comprising a support, at least one silver halide emulsion layer, and optionally one or more non-photosensitive hydrophylic layer(s), characterized in that at least one of said emulsion layer(s) and/or non-photosensitive layer(s) contains a triphenylmethane dye, absorbing around 670 nm, represented by general formula (ID): ##STR1## wherein R.sup.1 and R.sup.2 each independently represents hydrogen unsubstituted or substituted alkyl, or unsubstituted or substituted aryl, R.sup.3 represents an electron-withdrawing group, and the substance contains at least two water-solubilizing groups, and X.sup.- represents an anion, or an intramolecular anionic group.
The triphenylmethane dyes can serve as filter dye, acutance dye, or anti-halation dye. The claimed photographic materials are especially suited for exposure by a laser diode emitting at 670 nm.

REFERENCES:
patent: 2098391 (1937-01-01), Schneider et al.
patent: 2147112 (1939-02-01), Schneider et al.
patent: 2304890 (1942-12-01), Dickey et al.
patent: 4304833 (1981-12-01), Foley

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