Eastman-kodak Company

Eastman Kodac Company

Ellen M Pyszczek

Steven Evans

Helmut Weber

Mridula Nair

Ann L Carroll-Lee

Mary Christine Brick

Csaba A Kovacs

Joseph Salvatore Sedita

Peter G Bessey

Kimberly S Lindner

Stephen Swanton

Tomas Gerard Mchugh

Tomas Gerard Patrick Mchugh

An aqueous non-foamed functional composition formulation is disposed on a foamed opacifying layer in light-blocking, foamed opacifying elements. This non-foamed functional composition formulation has 0.5-15% solids and essential (i) and (iv) components and optional (ii), (v), (vi), and (vii) components. The components (i) untreated synthetic silica (fumed silica or precipitated silica) at 0.5-10 weight %; and a (iv) water-soluble or water-dispersible organic polymeric binder having a glass transition temperature (T) below 25° C. The weight ratio of the (i) untreated synthetic silica to the (iv) water-soluble or water-dispersible organic polymeric binder is 10:1 to 1:1. The optional components include: a (ii) solid or non-solid lubricant; a (v) crosslinking agent; a (vi) thickener; and a (vii) coating aid. Glass particles can also be present. The presence of the (i) untreated synthetic silica provides improved brightness, e.g. an L* value of at least 80, and uniform coatings in the resulting, foamed opacifying element.

Aqueous functional composition for articles

An aqueous functional composition formulation is used to provide a top layer or pattern in light-blocking opacifying elements. This functional composition formulation has 0.5-15% solids and the essential (i) and (iv) components and any optional (ii), (v), (vi), and (vii) components. The essential components are (i) fumed silica particles at 0.5-10 weight %; and a (iv) water-soluble or water-dispersible organic polymeric binder having a glass transition temperature (T) below 25&#xb0; C. The weight ratio of the (i) fumed silica particles to the (iv) water-soluble or water-dispersible organic polymeric binder is 10:1 to 1:5. The optional components include: a (ii) solid or non-solid lubricant; a (v) crosslinking agent; a (vi) thickener; and a (vii) coating aid. Glass particles can also be present. The presence of the (i) fumed silica provides improved brightness, e.g. an L* value of at least 80, and uniform coatings in the opacifying element.

Foamable aqueous compositions can be foamed and applied to porous substrates to make light-blocking dry opacifying elements. Such compositions have 0.05-15 weight % of porous particles; at least 20 weight % of a binder; at least 0.0001 weight % of additives (including a surfactant); water; and at least 0.001 weight % of an opacifying colorant. Each porous particle includes a continuous polymeric phase and discrete pores; a mode particle size of 2-50 &#x3bc;m; and a porosity of 20-70 volume %. The continuous polymeric phase Tis &#x3e;80&#xb0; C. and has a polymer viscosity of 80-500 centipoises at an ethyl acetate shear rate of 100 secat a concentration of 20 weight % at 25&#xb0; C. The dry opacifying element light blocking value is at least 4 and has a luminous reflectance &#x3e;40% as measured by the Y tristimulus value. The foamed aqueous composition has a foam density of 0.1-0.5 g/cm.

Formable and foamed aqueous compositions

An ink jet ink composition comprising water, a humectant and a water-soluble pyrazoleazoindole dye.

Dye for ink jet ink

Ink jet printing method

An ink jet ink composition comprising water, a humectant and a water-soluble azoindole dye.

An ink jet ink composition comprising water, a humectant, and a delocalized cationic azo dye derived from the quatemization of a heterocyclic azoaminothiazole dye.

Delocalized cationic azo dye for ink jet ink

A dye-donor element comprising a support having on one side thereof a dye layer comprising a dye precursor dispersed in a polymeric binder, the dye precursor having the following structure: ##STR1## and the support having on the other side thereof a slipping layer.

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LeRoy, NY, United States of America

Ellen M Pyszczek