Minnesota Mining and Manufacturing Company

Imation Corporation

Tulalip Consultoria Comercial Sociedade Unipessaol S.a.

Isabella Cogliolo

Ivano Delprato

Paolo Beretta

Sergio Massirio

Stefano Mana

Stefano Parodi

Luca Ceruti

A multilayer silver halide color photographic element comprises a support having coated thereon a silver antihalation layer, an interlayer, at least two red-sensitive silver halide emulsion layers, at least two green-sensitive silver halide emulsion layers a yellow filter layer, and at least two blue-sensitive silver halide emulsion layers, wherein a silver halide emulsion layer or a nonsensitive layer adjacent thereto comprises a bleach accelerator releasing coupler of formula

Silver halide color photographic element having improved bleachability

The present invention describes a light-sensitive silver halide photographic material comprising a support and silver halide emulsion layer or layers, wherein at least one of said silver halide emulsion layers contains tabular silver halide grains having an average diameter to thickness ratio of at least 2:1 and at least one azodicarbonamide derivative.

Light-sensitive photographic materials comprising tabular silver halide

The present invention refers to a silver halide photographic element containing a support having coated thereon at least a silver halide emulsion layer spectrally sensitized with a sensitizing dye according to the formula (I): ##STR1## wherein Z represents the atoms necessary to complete a 6-membered nitrogen-containing heterocyclic nucleus; at least 2 members of R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 --but not R.sub.1 and R.sub.2 together--represent an organic group carrying a water-solubilizing group in free acid form, in salt form or in latent form, and are same or different, the members of R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 that do not represent a said organic radical carrying a water-solubilizing group represent hydrogen, an alkyl group, an alkenyl group or an aryl group; and n is 0 or 1. The silver halide photographic material has the advantage to have a broad sensitivity in the red portion of the spectrum. It can be exposed to laser beam sources in the range of 600-700 nm.

Spectrally sensitized silver halide photographic elements

Growing community of inventors

Genoa, Italy

Isabella Cogliolo