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1. (WO1979000999) PROJECTION VIEWABLE TRANSPARENCY AND ELECTROGRAPHIC PROCESS FOR MAKING SAME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000999 International Application No.: PCT/US1979/000264
Publication Date: 29.11.1979 International Filing Date: 25.04.1979
IPC:
G03G 13/14 (2006.01) ,G03G 13/20 (2006.01) ,G03G 7/00 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
13
Electrographic processes using a charge pattern
14
Transferring a pattern to a second base
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
13
Electrographic processes using a charge pattern
20
Fixing, e.g. by using heat
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
7
Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
Applicants:
Inventors:
Priority Data:
90096628.04.1978US
Title (EN) PROJECTION VIEWABLE TRANSPARENCY AND ELECTROGRAPHIC PROCESS FOR MAKING SAME
(FR) SUPPORT TRANSPARENT POUR PROJECTION ET PROCEDE ELECTROGRAPHIQUE POUR SA FABRICATION
Abstract:
(EN) A transparency that is used to project an image onto a viewing surface is prepared by an electrographic copying process. An element used in this process comprises a transparent support that is coated with an image-receiving hydrophilic colloid layer that receives an image pattern of fusible toner particles. The image pattern of toner particles is fused to the hydrophilic colloid layer by contacting the toned image-bearing layer with a heated fuser surface such as a fuser roll. The fuser surface is coated with a release liquid which inhibits offsetting of the toner particles onto the fuser surface. Transparencies prepared by this process exhibit good resistance to abrasion in toned areas while also displaying no release liquid in non-toned areas upon projection viewing. Furthermore, toned areas of such transparencies can be selectively removed by light rubbing with a wet cloth or tissue.
(FR) Un support d"image transparent utilise pour projeter une image sur une surface de projection est prepare par un procede de reproduction electrographique. Un element utilise dans ce procede comprend un support transparent qui est revetu d"une couche d"un colloide hydrophile de reception de l"image qui recoit un dessin de particules de teinte fusibles. Le dessin de particules de teinte est fondu avec la couche de colloide hydrophile en mettant la couche porteuse d"image teintee au contact d"une surface de fusion chauffee telle qu"un rouleau. La surface de fusion est revetue d"un liquide qui inhibe le report des particules de teinte sur la surface de fusion. Les support transparents prepares par ce procede offrent une bonne resistance a l"abrasion dans les zones teintees sans pour autant etaler du liquide dans les zones non teintees au cours de la projection. De plus, les zones teintees de ces supports peuvent etre enlevees de maniere selective en frottant legerement avec un chiffon ou un tissu humide.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)