Xerox Corporation

Arnold L Pundsack

Man C Tam

Philip H Soden

Edward Graham Zwartz

Arthur Y Jones

Hardy Sonnenberg

Paul S Vincett

Enrique Levy

John F Yanus

Damodar M Pai

Ah-Mee Hor

William W Limburg

Dale S Renfer

Robert W Gundlach

Gregory J Kovacs

Allan K Chen

Rafik O Loutfy

Carol A Jennings

Brian D Lesser

Robert K Hunter, Jr

Ronald Forstinger

Christopher Rodgers

Eric R Endrizzi

Richard N Edwards

Wylee D McCrary

Disclosed is a migration imaging member comprising a substrate and a softenable layer, said softenable layer comprising a softenable material, a pigment predominantly sensitive to infrared or red light radiation, and a migration marking material predominantly sensitive radiation at a wavelength other than that to which the infrared or red light radiation sensitive pigment is sensitive contained at least at or near the surface of the softenable layer spaced from the substrate.

Migration imaging members

Disclosed is a migration imaging member comprising a substrate, a first softenable layer comprising a first softenable material and a first migration marking material contained at or near the surface of the first softenable layer spaced from the substrate, and a second softenable layer comprising a second softenable material and a second migration marking material. Also disclosed is a migration imaging process employing the aforesaid imaging member.

A process and apparatus for preparing migration imaging members are disclosed. Two substrates with softenable layers applied to them travel through a vacuum chamber where they are simultaneously exposed to vapor deposition of the migration marking material. After the migration marking material is deposited, the two softenable layers are laminated together in the same vacuum chamber to form the migration imaging member. In one of the embodiments, the softenable layers are applied to the substrates in the same sweep of the substrate through the vacuum chamber vapor deposition and lamination steps.

Process and apparatus for manufacturing migration imaging members

Disclosed is a process which comprises (a) providing a migration imaging member which comprises a substrate and a softenable layer comprising a softenable material and a photosensitive migration marking material; (b) providing a printing plate precursor which comprises a base layer and a layer of photosensitive material selected from the group consisting of photohardenable materials and photosoftenable materials; (c) placing the softenable layer of the migration imaging member in contact with the layer of photosensitive material of the printing plate precursor and applying heat and pressure to the migration imaging member and printing plate precursor, thereby causing the softenable layer of the migration imaging member to adhere to the layer of photosensitive material of the printing plate precursor; (d) uniformly charging the migration imaging member; (e) subsequent to step (d), exposing the charged imaging member to activating radiation at a wavelength to which the migration marking material is sensitive; (f) subsequent to step (e), causing the softenable material to soften and enabling the migration marking material to migrate through the softenable material in an imagewise pattern, thereby resulting in the layer of softenable material becoming transmissive to light in areas where the migration marking material has migrated and remaining nontransmissive to light in areas where the migration marking material has not migrated; (g) subsequent to step (f), uniformly exposing the migration imaging member and the printing plate precursor to radiation at a wavelength to which the photosensitive material on the printing plate precursor is sensitive, thereby causing the photosensitive material on the printing plate precursor to harden or soften in areas situated contiguous with light-transmissive areas of the softenable layer, thereby forming an imaged printing plate; and (h) subsequent to step (g), removing the migration imaging member from the imaged printing plate.

Printing plate preparation process

Disclosed is an apparatus for evaporation of a vacuum evaporatable material onto a substrate, said apparatus comprising (a) a walled container for the vacuum evaporatable material having a plurality of apertures in a surface thereof, said apertures being configured so that the vacuum evaporatable material is uniformly deposited onto the substrate; and (b) a source of heat sufficient to effect evaporation of the vacuum evaporatable material from the container through the apertures onto the substrate, wherein the surface of the container having the plurality of apertures therein is maintained at a temperature equal to or greater than the temperature of the vacuum evaporatable material.

Apparatus and process for preparation of migration imaging members

Disclosed is a printing plate precursor which comprises a base layer, a layer of photohardenable material, and a layer of softenable material containing photosensitive migration marking material. Alternatively, the precursor can comprise a base layer and a layer of softenable photohardenable material containing photosensitive migration marking material. Also disclosed are processes for preparing printing plates from the disclosed precursors.

Camera speed printing plate with in situ mask

An imaging member comprised of an ionically conductive film forming polymer, such as sulfonated polystyrene, and an electrically insulating softenable layer comprising a fracturable layer containing electrically photosensitive migration marking particles.

Imaging member and processes thereof

An imaging system in which an imaging member comprising a substrate and an electrically insulating softenable layer on the substrate, the softenable layer comprising migration marking material locked at least at or near the surface of the softenable layer spaced from the substrate, and a charge transport material in the softenable layer is imaged by electrostatically charging the member, exposing the member to activating radiation in an imagewise pattern, and decreasing the resistance to migration of marking material in the softenable layer sufficiently to allow the migration marking material struck by activating radiation to substantially migrate in depth towards the substrate in image configuration. This imaged member may be used as a xeroprinting master in a xeroprinting process comprising uniformly charging the master, uniformly exposing the charged master to activating illumination to form an electrostatic latent image, developing the latent image to form a toner image and transfering the toner image to a receiving member. A charge transport spacing layer comprising a film forming binder and a charge transport compound may be employed between the substrate and the softenable layer in order to increase the contrast potential associated with the surface changes of the latent image.

Imaging system

An imaging system in which an imaging member comprising a substrate and an electrically insulating softenable layer on the substrate, the softenable layer comprising migration marking material located at least at or near the surface of the softenable layer spaced from the substrate, and a charge transport material in the softenable layer is imaged by eletrostatically charging the member, exposing the member to activating radiation in an imagewise pattern, decreasing the resistance to migration of marking material in the softenable layer sufficiently to allow the migration marking material struck by said activating radiation to retain a slight net charge which allows only slight agglomeration, slight coalescence, slight migration in depth of marking material towards said substrate or combination thereof in image configuration during a further decreasing of the resistance to migration towards the substrate in image configuration, and further decreasing the resistance to migration of marking material in the softenable layer sufficiently to allow non-exposed marking material to agglomerate and coalesce substantially. This imaged member may be used as a xeroprinting master in a xeroprinting process comprising uniformly charging the master, uniformly exposing the charged master to activating illumination to form an electrostatic latent image, developing the latent image to form a toner image and transfering the toner image to a receiving member. A charge transport spacing layer comprising a film forming binder and a charge transport compound may be employed between the substrate and the softenable layer in order to increase the surface potential associated with the surface charges of the latent image.

A camera, processor and viewer is disclosed wherein the migration imaging system is utilized as the photosensitive element. The device is provided with the capability of recording an original image on the migration image film, instantly developing the image by means of heat application and also provides means for viewing the developed image immediately upon development without removal of the migration image film from the device. The device is semi-automatic in operation and is electrically powered alternatively by batteries located within the device or supplied with electrical current from an external source by means of a detachable cord.

Camera with development and viewing means

A camera/processor for, in a preferred mode, continuously exposing and developing photographic film, and preferably, photographic migration imaging film. The versatility of the apparatus is demonstrated by its ability to perform either heat or meniscus development and, optionally, film overcoating. After the film is exposed, it travels along a predetermined path, which path may include a plurality of separate film developing and film drying stations, toward a takeup reel.

Photocopying camera and processing device

A device for coating a condensed metallic vapor onto a confined area of a substrate wherein the crucible producing the vapor is dimensionally stabilized and contains a variable aperature positioned relative to the vapor exit means of the crucible so as to provide a restricted line-of-sight path of travel for the vapors from the reservoir to the substrate being coated.

Growing community of inventors

Georgetown, Canada

Arnold L Pundsack