Zink Imaging, Inc.

Polaroid Corporation

Other

Fariza B Hasan

Stephen J Telfer

William T Vetterling

Brian David Busch

Chien Liu

John L Marshall

John M Hardin

Michael P Filosa

Kap-Soo Cheon

Russell A Gaudiana

Alain Bouchard

Michael J Arnost

Michael S Viola

Yongqi Deng

Michael A Young

Edward J Dombrowski

Serajul Haque

Yulin Hardin

Daniel D Huang

John C Day

Xavier Herault

David A Skyler

Alma J Padilla

A multicolor direct thermal imaging method wherein a multicolor image is formed in a thermal imaging member comprising at least first and second different image-forming compositions and a thermal printer for use in practicing the method. Heat is applied to at least the second image-forming composition while the first image-forming composition is at a first baseline temperature (T) to form an image in at least the second image-forming composition, and heat is applied to at least the first image-forming composition while it is at a second baseline temperature (T) to form an image in at least the first image-forming composition, wherein Tis different from T.

Multicolor thermal imaging method and thermal printer

Multicolor thermal imaging members are described that comprise color-forming layers that are separated by thermally-insulating layers and can be addressed with a thermal printing head in contact with a surface to form an image. The thermally-insulating layers are designed to be as thin as possible consistent with at least partially independent addressing of the color-forming layers, and are formulated so as not to lead to instabilities either before or after printing or to give rise to dimensional changes of a thermal imaging member when it is subjected to changes in temperature or humidity. Coating compositions for manufacturing such thermally-insulating layers are also provided.

Thermally-insulating layers and direct thermal imaging members containing same

A multicolor direct thermal imaging method and an imaging member for use therein, wherein a multicolor image is formed in a thermal imaging member having at least two different image-forming compositions capable of forming two different colors. Heat is used to form an image in the first color at a first speed of travel of the thermal imaging member with respect to the source of heat, and heat is used to form an image in the second color at a second speed of travel of the thermal imaging member with respect to the source of heat, where the first speed of travel and the second speed of travel are different from each other.

Multicolor thermal imaging method and thermal imaging member for use therein

There are described novel rhodamine color-forming compounds. The rhodamine color-forming compounds exhibit a first color when in a crystalline form and a second color, different from the first color, when in an amorphous form. Thermal imaging members containing these color-formers are also described.

Color-forming compounds and use thereof in imaging members and methods

There are described novel rhodamine dye compounds and imaging members and imaging methods, including thermal imaging members and imaging methods, utilizing the compounds. The dye compounds exhibit a first color when in the crystalline form and a second color, different from the first color, when in the liquid, amorphous form.

Dyes and use thereof in imaging members and methods

There are described imaging compositions which include a copper phthalocyanine dye and an aminoanthraquinone dye and thermal imaging members and ink jet inks which utilize the imaging compositions. Thermal imaging methods utilizing the thermal imaging members and ink jet imaging methods utilizing the ink jet inks are also described.

Imaging compositions, imaging methods and imaging members

There is described a protective overcoat material comprising from about 40 weight percent to about 85 weight percent of poly(methyl methacrylate) having a Tg above about 100&#xb0; C., from about 10 weight percent to about 50 weight percent of poly(ethyl methacrylate) having a Tg of from about 52&#xb0; C. to about 65&#xb0; C. and about 1 weight percent of a melt flow modifier. Also described are thermal image recording members which include a protective overcoat layer.

Thermographic overcoat layer and thermographic image recording members

There is described a thermal recording system which utilizes a donor element comprising a substrate and a thermal transfer material layer having a dye-containing phase which is amorphous and wherein the dye or dyes present in the amorphous phase form a continuous film. Imagewise heating of the medium transfers portions of the transfer layer to a receiver sheet, thus forming an image. The transfer layer may also include a non-dye phase comprising a thermal solvent. During the heating of the donor element, the crystalline thermal solvent melts and dissolves or liquefies at least a portion of the dye-containing phase, thereby lowering the temperature at which transfer of the transfer layer occurs.

Thermal transfer recording system

The present invention relates to a photographic processing composition comprising an aqueous alkaline medium including titanium dioxide particles and a stabilizing agent comprising a polymer polymerized from repeating units of styrene and an acrylic acid. The presence of the stabilizing agent substantially reduces the settling out of the titanium dioxide particles in the subject processing composition, and maintains the substantially uniform distribution of titanium dioxide particles therein. The subject processing compositions are useful in photographic diffusion transfer film units and processes.

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Waltham, MA, United States of America

Fariza B Hasan