EP0360303A2 - An apparatus for developing and transferring an image - Google Patents
An apparatus for developing and transferring an image Download PDFInfo
- Publication number
- EP0360303A2 EP0360303A2 EP89121232A EP89121232A EP0360303A2 EP 0360303 A2 EP0360303 A2 EP 0360303A2 EP 89121232 A EP89121232 A EP 89121232A EP 89121232 A EP89121232 A EP 89121232A EP 0360303 A2 EP0360303 A2 EP 0360303A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- photo
- image
- paper
- developing
- transferring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract 6
- 239000000049 pigment Substances 0.000 description 13
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 3
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- -1 silver halide Chemical class 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/40—Development by heat ; Photo-thermographic processes
- G03C8/4013—Development by heat ; Photo-thermographic processes using photothermographic silver salt systems, e.g. dry silver
- G03C8/4093—Development by heat ; Photo-thermographic processes using photothermographic silver salt systems, e.g. dry silver characterised by the apparatus used
Definitions
- the present invention relates to an apparatus for developing and transferring an image.
- the sensitive paper contains a dye, (in the following referred to as "pigment") carrier which reduces at least photo-sensitive silver halide, organic silver salt oxidizer, hydrophilic binder and pigment expelling agent. As a result of a chemical reaction, the photo-sensitive paper expels a hydrophilic pigment.
- a dye in the following referred to as "pigment”
- the thermal developing color photo-sensitive paper is subjected merely to thermal developing after exposure of the image, a silver image is formed in the exposed portion of the paper while the mobile hydrophilic pigment is provided in the portion thereof which corresponds with the silver image.
- the photo-sensitive layer is thus composed of negative photo-sensitive material.
- the thermal developing color photo-sensitive paper is subjected to image exposure and then to thermal developing, and an oxidation-reduction reaction takes place between the organic silver salt oxidizer and the reduceable pigment carrier with the exposed photo-sensitive silver halide acting as a catalyst.
- the silver image is formed in the exposed portion of the photo-sensitive paper.
- the pigment carrier is oxidized into an oxide by the organic silver salt oxidizer.
- the oxide is excised under the presence of the pigment expelling agent, as a result of which the mobile hydrophilic pigment is expelled. Accordingly, the silver image and the mobile hydrophilic pigment are provided in the exposed portion, and a color image can be obtained by transferring the hydrophilic pigment onto the print paper.
- the photo-sensitive layer is made of positive photo-sensitive material
- the silver image and the mobile hydrophilic pigment are provided in the portion of the material which is not exposed.
- the Fig. is a side view of a thermal developing and transferring apparatus operated according to a method in which a melting diffusion agent is applied in advance to a print paper or a thermal developing photo-sensitive paper. After a print paper and an exposed photo-sensitive paper are arranged in layers, the layers are led around a hot drum so that a developing step and a transferring step are simultaneously carried out.
- the apparatus comprises: a hot drum 70 which turns in one direction; a supply roll 71 on which a print paper P is wound; a pair of feed rollers 72 and 72 for feeding exposed thermal developing photo-sensitive paper N in roll form; a guide roller 74 cooperating with a back-up roller 73 to put the photo-sensitive paper N and a print paper P in layers and to abut the layered paper against the hot drum 70; a guide roller 75 and a back-up roller 76 for peeling off the print paper P, onto which the image has been transferred; from the photo-sensitive paper N; a winding roll 77 which is operated with a frictional drive to rewind the used photo-sensitive paper N; and a guide roller 78 for guiding the used photo-sensitive paper N from the hot drum 70 to the winding roll 77.
- the leader of the exposed photo-sensitive paper N which has been passed through the pair of feed rollers 72 and 72, is laid on the print paper P coming from the supply rool 71. Then, these papers are passed between the rollers 73 and 74 and are then wound around the hot drum 70 in such a manner that the paper P is passed between the rollers 75 and 76.
- the leader of the photo-sensitive paper N is passed between the drum 70 and the roller 78 and is then rewound on the winding roller 77. As the hot drum 70 is turned clockwise, the photo-sensitive paper N is heated, so that the exposed part thereof expels a pigment.
- the print paper P is also heated, so that a hydrophilic melting paper such as urea, water of crystallization or a micro-capsule is melted to allow a diffusion agent to ooze out.
- a pigment image is transferred onto the print paper P.
- the print paper P onto which the image has been transferred is removed from the photo-sensitive paper N and is discharged as a hard copy passing between the guide roller 75 and the back-up roller 76.
- the photo-sensitive paper N which has been used is wound on the winding roll 77.
- the hot drum 70 has a silicone rubber heater as a heat source.
- the heater wattage density is made high enough to maintain the peripheral temperature substantially uniform.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Developing Apparatuses (AREA)
Abstract
Description
- The present invention relates to an apparatus for developing and transferring an image.
- In recent years, thermal developing photosensitive paper was developed, which a color sensitive paper and which is employable with an apparatus according to the present invention. Such a color sensitive paper is disclosed by the Japanese patent application 15 77 98-1981, which has European equivalent EP-A-76 492. This document is prior art under Article 54 (3) EPC.
- The sensitive paper contains a dye, (in the following referred to as "pigment")
carrier which reduces at least photo-sensitive silver halide, organic silver salt oxidizer, hydrophilic binder and pigment expelling agent. As a result of a chemical reaction, the photo-sensitive paper expels a hydrophilic pigment. When the thermal developing color photo-sensitive paper is subjected merely to thermal developing after exposure of the image, a silver image is formed in the exposed portion of the paper while the mobile hydrophilic pigment is provided in the portion thereof which corresponds with the silver image. The photo-sensitive layer is thus composed of negative photo-sensitive material. In other words, the thermal developing color photo-sensitive paper is subjected to image exposure and then to thermal developing, and an oxidation-reduction reaction takes place between the organic silver salt oxidizer and the reduceable pigment carrier with the exposed photo-sensitive silver halide acting as a catalyst. The silver image is formed in the exposed portion of the photo-sensitive paper. In this step, the pigment carrier is oxidized into an oxide by the organic silver salt oxidizer. The oxide is excised under the presence of the pigment expelling agent, as a result of which the mobile hydrophilic pigment is expelled. Accordingly, the silver image and the mobile hydrophilic pigment are provided in the exposed portion, and a color image can be obtained by transferring the hydrophilic pigment onto the print paper. - In the case where the photo-sensitive layer is made of positive photo-sensitive material, the silver image and the mobile hydrophilic pigment are provided in the portion of the material which is not exposed.
- It is the task underlying the present invention to provide an apparatus able to record images under use of a photo-sensitive paper as described above. This task is solved with an image recording apparatus as specified in the claim.
- The invention will now be described with reference to the drawing, which shows a side view of essential components of an embodiment according to the invention.
- The Fig. is a side view of a thermal developing and transferring apparatus operated according to a method in which a melting diffusion agent is applied in advance to a print paper or a thermal developing photo-sensitive paper. After a print paper and an exposed photo-sensitive paper are arranged in layers, the layers are led around a hot drum so that a developing step and a transferring step are simultaneously carried out.
- The apparatus comprises: a
hot drum 70 which turns in one direction; asupply roll 71 on which a print paper P is wound; a pair offeed rollers guide roller 74 cooperating with a back-uproller 73 to put the photo-sensitive paper N and a print paper P in layers and to abut the layered paper against thehot drum 70; aguide roller 75 and a back-up roller 76 for peeling off the print paper P, onto which the image has been transferred; from the photo-sensitive paper N; awinding roll 77 which is operated with a frictional drive to rewind the used photo-sensitive paper N; and aguide roller 78 for guiding the used photo-sensitive paper N from thehot drum 70 to thewinding roll 77. - The leader of the exposed photo-sensitive paper N, which has been passed through the pair of
feed rollers supply rool 71. Then, these papers are passed between therollers hot drum 70 in such a manner that the paper P is passed between therollers drum 70 and theroller 78 and is then rewound on thewinding roller 77. As thehot drum 70 is turned clockwise, the photo-sensitive paper N is heated, so that the exposed part thereof expels a pigment. At the same time, the print paper P is also heated, so that a hydrophilic melting paper such as urea, water of crystallization or a micro-capsule is melted to allow a diffusion agent to ooze out. As a result, a pigment image is transferred onto the print paper P. The print paper P onto which the image has been transferred is removed from the photo-sensitive paper N and is discharged as a hard copy passing between theguide roller 75 and the back-uproller 76. The photo-sensitive paper N which has been used is wound on thewinding roll 77. - The
hot drum 70 has a silicone rubber heater as a heat source. In this type of heater, the heater wattage density is made high enough to maintain the peripheral temperature substantially uniform.
Claims (1)
an overlaying section having overlaying means for overlaying said thermally developable photo-sensitive material with an image receiving material;
a thermally developing/transferring section having a heating drum (70) for heating the thermally developable photo-sensitive material (N) and image receiving material (P) overlaid one on another and wound around said heating drum, thereby carrying out development and transfer processes simultaneously.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19890121232 EP0360303A3 (en) | 1982-10-25 | 1983-10-13 | An apparatus for developing and transferring an image |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57186921A JPS5975247A (en) | 1982-10-25 | 1982-10-25 | Thermodevelopment transfer method |
JP186921/82 | 1982-10-25 | ||
EP19890121232 EP0360303A3 (en) | 1982-10-25 | 1983-10-13 | An apparatus for developing and transferring an image |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83110230A Division EP0109537B1 (en) | 1982-10-25 | 1983-10-13 | Apparatus for thermal developing and transferring |
EP83110230.6 Division | 1983-10-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0360303A2 true EP0360303A2 (en) | 1990-03-28 |
EP0360303A3 EP0360303A3 (en) | 1991-04-03 |
Family
ID=26120761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19890121232 Withdrawn EP0360303A3 (en) | 1982-10-25 | 1983-10-13 | An apparatus for developing and transferring an image |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0360303A3 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1316396A (en) * | 1961-03-06 | 1963-01-25 | Lumoprint Zindler Kg | Process for obtaining copies by diffusion with heat input and device for carrying out this process |
GB2100016A (en) * | 1981-05-12 | 1982-12-15 | Fuji Photo Film Co Ltd | Diffusion transfer heat-developable color photographic material |
-
1983
- 1983-10-13 EP EP19890121232 patent/EP0360303A3/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1316396A (en) * | 1961-03-06 | 1963-01-25 | Lumoprint Zindler Kg | Process for obtaining copies by diffusion with heat input and device for carrying out this process |
GB2100016A (en) * | 1981-05-12 | 1982-12-15 | Fuji Photo Film Co Ltd | Diffusion transfer heat-developable color photographic material |
Also Published As
Publication number | Publication date |
---|---|
EP0360303A3 (en) | 1991-04-03 |
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Legal Events
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19960802 |