Patent · US Expired

Silver salt diffusion transfer material sensitized for blue light

US6261733A · kind A · utility

5Cited by

2References

10Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Paul Coppens · Turnhout, BE
Ludo Vervloet · Kessel, BE
Paul Callant · Edegem, BE

Key dates

Filing date	May 3, 2000
Grant date	Jul 17, 2001
Priority date	—
Expiry date	May 3, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG03C8/44
WIPO fieldOptics
WIPO sectorInstruments

Abstract

According to the present invention, there is provided a silver salt diffusion transfer material, comprising on a hydrophilic surface of a support in the order given (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) a top layer containing gelatin, said silver halide emulsion being spectrally sensitized with a dye with a sensitizing maximum between 380 and 430 nm, characterized in that said top layer comprises a compound I ##STR1## and/or a compound II ##STR2##

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.