EP0123892A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Process for thermal development and transfer
Assignee: Fujifilm Holdings Corp
•
Filing: 1984-03-26
•
Granted: —
•
Expires: 2004-03-26
Abstract
Abstract A photosensitive material containing a hydrophilic pigment is exposed to light to form a pigment pattern defining a particular image. The photosensitive material is brought into intimate contact with an image receiving material having a pigmentfixing layer. The mutually contacting materials are heated so that the pigment may be transferred from the photosensitive material to the pigment fixing layer. A pigment diffusion assitant, is supplied to an area between the mutually contacting materials before they are heated for pigment transfer. The diffusion assistant spreads along a line along which the two materials are in contact with each other and promotes the transfer of the pigment.
Inventors
- 👤 Nobumitsu Fuji Photo Film Co. Ltd Takehara
- 👤 Kazuhiko Fuji Photo Film Co. Ltd Yanagihara
- 👤 Masahiro Fuji Photo Film Co. Ltd Ohnishi
- 👤 Isamu Fuji Photo Film Co. Ltd Hatanaka
- 👤 Shigeo Fuji Photo Film Co. Ltd Harada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 13:28
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49881; G03C8/00; G03C8/32; G03C8/34; G03C8/40; G03C8/4013; G03C8/4093
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
114 words
In a process for thermal development and transfer comprising steps of exposing to light a photosensitive material containing a hydrophilic pigment to form a pigment pattern defining a particular image, said pigment being transferable when heated; bringing said material into intimate contact with an image receiving material having a pigment fixing layer; and heating said photosensitive and image receiving materials to transfer said pigment to said pigment fixing layer, the improvement which comprises; supplying a pigment diffusion assistant to an area between said photosensitive and image receiving materials in such a manner that it can spread along a line along which said materials contact one another, and can assist the transfer of said pigment.
Claim 2
Dependent Claim
114 words
In a process for thermal development and transfer comprising steps of exposing to light a photosensitive material containing a hydrophilic pigment to form a pigment pattern defining a particular image, said pigment being transferable when heated; bringing said material into intimate contact with an image receiving material having a pigment fixing layer; and heating said photosensitive and image receiving materials to transfer said pigment to said pigment fixing layer, the improvement which comprises; supplying a pigment diffusion assistant to an area between said photosensitive and image receiving materials in such a manner that it can spread along a line along which said materials contact one another, and can assist the transfer of said pigment.
Claim 3
Dependent Claim
14 words
The process as set forth in claim 1, wherein said diffusion assistant is water.
Claim 4
Dependent Claim
32 words
The process as set forth in claim 1, wherein said diffusion assistant is an aqueous solution of a photographically useful substance selected from the group consisting of bases and surface active agents.
Claim 5
Dependent Claim
29 words
The process as set forth in claim 2 or 3, wherein said diffusion assistant is supplied to a point approximately in the middle of the width of said materials.
Claim 6
Dependent Claim
25 words
The process as set forth in claim 4, wherein said diffusion assistant is supplied through a pipe disposed between said materials and extending transversely thereof.
Claim 7
Dependent Claim
26 words
The process as set forth in claim 5, wherein said pipe has an outlet opening located at a point approximately in the middle of its length.
Claim 8
Dependent Claim
32 words
The process as set forth in claim 5, wherein said pipe has an outlet opening at a free end thereof remote from an end connected to a source of diffusion assistant supply.
Claim 9
Dependent Claim
34 words
The process as set forth in claim 4, wherein said diffusion assistant is supplied through a pipe having a plurality of outlet openings spaced apart from one another along the length of said pipe.
Claim 10
Dependent Claim
32 words
The process as set forth in claim 4, wherein said diffusion assistant is supplied in the form of at least one drop, said drop spreading to form a bead between said materials.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.