E.i. Dupont De Nemours and Company

James Walter Wheeler

Sandra Laurine Issler

John Stephen Locke

Jose Esteban Valentini

Samit N Chevli

Kuo Hsiung Kung

Alicia Marie Walsh

William Thomas Hall

Gregory Paul Morris

John C Hornby

The present disclosure provides an ink jet ink including a dye, a vehicle, and a surfactant combination having: (a) an acetylene alcohol having the generic structure:  

Ink jet ink and ink set

The present invention pertains to an inkjet ink comprising performance additives and to an ink set comprising this ink, wherein the performance additives alleviate bleed in multicolor printed elements.

Inkjet ink and ink set

The present invention pertains to a dye-based inkjet ink set with a lightfast cyan ink and, more particularly, to a dye-based inkjet ink set suitable for printing on fabrics, especially polyamide fabric. The present invention also pertains to a method for printing a polyamide fabric with the dye-based inkjet ink set, and a polyamide fabric so printed.

Inkjet ink set

The present invention pertains to a dye-based inkjet ink set and, more particularly, to a dye-based inkjet ink set suitable for printing on polyamide fabric.

The present invention pertains to a yellow ink for inkjet printing and, in particular, to a yellow ink comprising a combination of specific yellow colorants. The present invention further pertains to an ink set comprising this yellow ink. The ink and ink set are particularly advantageous for printing on plain paper.

The present invention pertains to a dye-based inkjet ink set and, more particularly, to a dye-based inkjet ink set suitable for printing on polyamide fabric. The present invention also pertains to a method for printing a polyamide fabric with the dye-based inkjet ink set, and a polyamide fabric so printed.

The salt passage of a reverse osmosis membrane is increased by: (a) contacting the membrane with ions to form a membrane-ion complex; (b) treating the membrane-ion complex with an aqueous solution of an alkali metal permanganate to form manganese dioxide crystals in the membrane; and (c) dissolving the manganese dioxide crystals. The process can be repeated any number of times to further open the membrane.

Process for opening reverse osmosis membranes

An ink jet recording sheet comprising a sheet support, e.g., paper, bearing a surface coating comprising (a) a water soluble organic polymeric binder, (b) a titanium chelate crosslinking agent as defined, and (c) an inorganic filler, the weight ratio of (c) to (a) preferably being about 7 to 1 to about 1 to 2. The ink jet recording sheet is useful for ink jet printing.

Ink jet paper having crosslinked binder

A new group of cyanine and merocyanine spectral sensitizing dyes based on derivatives of 3-indolizine carboxaldehyde is particularly useful in sensitizing a direct positive silver halide emulsion to orange and red.

Photographic film containing direct positive dyes made from 3-indolizine

Direct positive dyes made from 3-indolizine carboxaldehyde

Direct positive photographic elements with improved spectral sensitivity in the green and red portion of the visible spectrum are obtained from emulsions containing a supersensitizing amount of a spectral sensitizing dye (a) having a solution absorption maximum less than 495 nm and the lowest vacant energy band less than -3.7 eV, and a sensitizing amount of a spectral sensitizing dye (b) having a lowest vacant energy band between -3.7 eV and 0.3 eV below the lowest vacant energy band of said spectral sensitizing dye (a) and with the highest occupied energy band between -5.9 eV and 0.3 eV above the highest occupied energy level of dye (a).

Growing community of inventors

West Chester, PA, United States of America

James Walter Wheeler