Aqueous soluble infrared antihalation dyes

Details Aqueous soluble infrared antihalation dyes Aqueous soluble infrared antihalation dyes

C - Chemistry, Metallurgy

09

B

C09B 23/10 (2006.01) C09B 23/01 (2006.01) G03C 1/12 (2006.01) G03C 1/825 (2006.01) G03C 1/83 (2006.01)

Patent

CA 2054087

20 IM-0432 TITLE AQUEOUS SOLUBLE INFRARED ANTIHALATION DYES 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: Image 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 -(CH2)3- or 0(CH2)4-.

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