Light sensitive element having an antihalation layer

Details Light sensitive element having an antihalation layer Light sensitive element having an antihalation layer

1992-01-21

1992-11-17

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Antihalation or filter layer containing

430271, 430517, G03C 106

Patent

active

051642913

ABSTRACT:
Sulfoalkyl substituted indolenine dyes that absorb infrared radiation and photosensitive elements containing said dyes are disclosed. These dyes are useful as antihalation dyes in infrared sensitive photographic elements which show dye low stain. These dyes are represented by the following structure: ##STR1## wherein X is F, Cl, or Br; R is a hydrocarbon moiety containing from two to about five carbon atoms; and Y is a cation. In a preferred embodiment X is Cl. In a more preferred embodiment R is --(CH.sub.2).sub.3 -- or --(CH.sub.2).sub.4 --.

REFERENCES:
patent: 4871656 (1989-10-01), Parton et al.
patent: 4876181 (1989-10-01), Proehl et al.
patent: 4882265 (1989-11-01), Laganis et al.

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