E.i. Dupont De Nemours and Company

Glenn M Russo

Dominic M Chan

Howard Matrick

Ludovic Fodor

Dennis S Donald

John R Shock

William R Pangratz

Julie C Bishop

A process of developing exposed silver halide elements comprises developing said element in a developer in the presence of a development accelerator compound as defined. The development accelerator compounds include pyridinium, or pyridinium and and imidazolium compounds. The process is applicable to standard and hydrazine-containing films and to hydroquinone and/or ascorbic acid-based developers. The development accelerator may be incorporated into the developer or into the silver halide emulsion.

Process for rapid access development of silver halide films using

An aqueous ink jet ink comprises an aqueous carrier medium, a colorant and at least one alkylpolyol ether cosolvent selected from the group of alkyl-bis-oxyalkyldiols, olefinic oxyalkyl diols, alkyl-tris-oxyalkyldiols and alkyl-tetrakis-oxyalkyldiols exhibit rapid drying, excellent image definition, are storage stable, have low odor and have excellent decap properties.

Alkylpolyol ethers as cosolvents for ink jet inks

Aqueous ink jet ink compositions comprising an aqueous carrier medium, a colorant, and cosolvents which are selected amide, sulfonamide, urea and thiourea derivatives of polyoxyalkyleneamines having a solubility in water of at least 4.5% at 25.degree. C., have high optical density, excellent print quality, excellent dispersion stability, and resist film formation on resistors without adversely affecting decap time or crusting.

Derivatives of polyoxyalkyleneamines as cosolvents for aqueous ink jet

Aqueous ink jet ink compositions comprising an aqueous carrier medium, a colorant, such as a pigment dispersion or dye, and a nitrogen-containing organic cosolvent having a solubility in water of at least 4.5 % at 25.degree. C., exhibit freedom from plug formation and excellent storage stability.

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Mullica Hill, NJ, United States of America

Glenn M Russo