US3800432A - Photo-sensitive sheet drying apparatus - Google Patents
Photo-sensitive sheet drying apparatus Download PDFInfo
- Publication number
- US3800432A US3800432A US00172100A US3800432DA US3800432A US 3800432 A US3800432 A US 3800432A US 00172100 A US00172100 A US 00172100A US 3800432D A US3800432D A US 3800432DA US 3800432 A US3800432 A US 3800432A
- Authority
- US
- United States
- Prior art keywords
- conveyor means
- photo
- sheet
- conveyor
- sensitive sheet
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
Definitions
- This invention relates to an apparatus for drying wet photo-sensitive sheets, and more particularly to a dryer of the type using a conveyor means against which the wet photo-sensitive sheet is pushed by a stream of gas blowing onto the sheet to dry thesame.
- the automatic transporting type photo-sensitive sheet drying apparatus which is commonly used comprises a roller conveyor.
- the photo-sensitive sheet tends to curl in the course of the drying operation because of the difference in the thermal elongations of a relatively thick gelatine coating on one surface of a film base sheet and a relatively thin gelatine coating on the other surface of the film base, and when the curled end of the photo-sensitive sheet is caught in the conveyor, it will turn aside from the passageway, defined by the conveyor, and therefore cannot be carried further.
- the automatic transporting type dryer which is also commonly used, comprises two parallel belt conveyors between which the photosensitive sheet is closely gripped. This dryer will not allow the photo-sensitive sheet to curl, and therefore it can convey the photosensitive sheet which has a strong inclination to curl when dried. However, the wet photo-sensitive sheet cannot be dried evenly, and the pattern of stripe traces of the belt remains on the photo-sensitive sheet after it has been dried, thus deteriorating the appearance or image quality of the photo-sensitive sheet.
- a dryer of the type to which this invention relates comprises upper and lower conveyors.
- the photosensitive sheet is pushed against one of these conveyors by a stream of drying gas and is carried by said one conveyor.
- the fore and/or rear end of the sheet will curl increasingly until the curled end of the sheet touches the surface of the lower conveyor belt and is caught in the conveyor, thus preventing the sheet from further travelling or causing the following sheet to reach and overtake the retarded sheet.
- the object of this invention is to provide a photosensitive sheet drying apparatus capable of smoothly transporting the photo-sensitive sheet which will tend to curl while it is subjected to the drying operation, and of drying the sheet without deteriorating the appearance or picture quality thereof.
- the drying apparatus which comprises upper and lower conveyors moving at equi-speed in one direction and transporting the photo-sensitive sheet, which exists between the upper and lower conveyors and is pushed against one of these conveyors by a stream of drying gas blowing from a perforated plate through the other conveyor.
- conveyor used hereinafter, indicates a belt type conveyor, a roller type conveyor and other conveyors of any type.
- FIG. 1 shows one embodiment of this invention having upper and lower conveyor belts of a material capable of air passage
- FIG. 2 shows another embodiment having upper and lower conveyor belts both consisting of an arrangement of staggered rollers
- FIG. 3 depicts a different embodiment whose upper and lower conveyors consist of an air-passing belt and an arrangement of rollers respectively;
- FIG. 4 shows an embodiment similar to that shown in FIG. 3, but the upper conveyor thereof consists of an arrangement of staggered rollers whereas the lower conveyor consists of an air-passing belt;
- FIG. 5 is a plan view of a air-passing belt
- FIG. 6 is a plan view of an arrangement of staggered rollers.
- FIG. 7 shows an embodiment of this invention whose air-passing plate has a number of air holes slanting with respect to the travelling direction of the conveyor.
- the upper and lower conveyors l1 and 12 of the apparatus each consists of an airpassing belt. These conveyors move at equi-speed in the same direction.
- the photo-sensitive sheet 3 is pushed against the upper conveyor belt 7 by a stream of drying gas passing through the lower conveyor belt 8.
- the fore and rear ends of the photo-sensitive sheet 3 curl increasingly with the progress of the drying operation until the curled ends of the sheet 3 have touched the surface of the lower belt 12, travelling with the conveyors l1 and 12.
- the stream of air from a fan 4 is heated after passing through a heat source 5 and then the warm air stream blows from numerous air holes 6 through the lower conveyor belt 8, thus pushing the photo-sensitive sheet 3 against the upper conveyor belt 11. Then, the photo-sensitive sheet 3 can be carried by the upper belt conveyor 11. In the course of the drying operation the fore and rear ends of the sheet curl increasingly until the ends of the sheet have been brought in close contact with the lower conveyor belt 12 which travels at the same speed and in the same direction as the upper conveyor belt 11. Thus, the photo-sensitive sheet will not be caught in the conveyor and it will be smoothly carried without being lowered in the quality of its appearance or image.
- the upper and lower conveyors 21 and 22 consist of an arrangement of numerous staggered rollers 13.
- a stream of air from a fan 4 is heated by a heater 5, and then the warm air blows from numerous air holes 6 to pass through the lower conveyor 22 to the photo-sensitive sheet 3 which is pushed against the upper conveyor 21, and is carried by the same.
- the fore and/or rear ends of the sheet will curl increasingly in the course of drying until the curled end of the sheet touches on the surface of the lower conveyor. This, however, will cause no trouble because the lower conveyor 22 travels at the same speed and in the same direction as the upper conveyor 21. Otherwise, the curled end of the sheet will be caught in the lower conveyor.
- the sheet will be put aside from the passage, or it will be retarded and finally the following sheet will reach and overtake the retarded sheet. As a matter of course, this will cause malfunction in the dryer.
- the degree of curling will be suppressed somewhat by the upward stream of air to cause the curled end of the sheet to rise.
- the upper conveyor 31 consists of an airpassing belt whereas the lower conveyor 32 consists of an arrangement of staggered rollers.
- the upper conveyor 41 consists of an arrangement of staggered rollers whereas the lower conveyor 42 consists of an air-passing belt.
- the air-passing belt suitable for use in the apparatus of this invention consists of a net of a cellulose or a synthetic resin as shown in FIG. 5. Alternatively a plurality of strings stretched in the same direction as the travelling direction of the photo-sensitive sheet can be used.
- the belt can be made ofa porous substance which must be thermostable at the temperature of 1 C.
- the arrangement of numerous staggered rollers is shown in FIG. 6.
- the staggering arrangement prevents the curled end of the photo-sensitive sheet from protruding from the space between the adjacent rods to which the rollers are fixed.
- a photo-sensitive sheet drying apparatus comprising:
- first and second conveyor means being spaced such as to enable only the ends of the sheet to touch said first conveyor means while an intermediate portion of the sheet contacts the second conveyor means when there has been sufficient drying to cause curling of the sheet.
- a photo-sensitive sheet drying apparatus according to claim 1 wherein said first conveyor means comprises a reticulate belt.
- a photo-sensitive sheet drying apparatus according to claim 1 wherein both of said conveyor means comprise an arrangement of staggered rollers.
- one of said conveyor means comprises a reticulate belt whereas the other conveyor means comprises an arrangement of staggered rollers.
- said means for directing a stream of gas comprises a perforated plate having numerous air holes normal to the travelling direction of said conveyor means.
- said means for directing a stream of gas comprises a perforated plate having numerous holes slanting in the travelling direction of said conveyor means.
- a photo-sensitive sheet drying apparatus according to claim 1 wherein at least said second conveyor means comprises a crosswise staggered arrangement of disc roller elements.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
- Advancing Webs (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP45072923A JPS5017126B1 (nl) | 1970-08-20 | 1970-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3800432A true US3800432A (en) | 1974-04-02 |
Family
ID=13503343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00172100A Expired - Lifetime US3800432A (en) | 1970-08-20 | 1971-08-16 | Photo-sensitive sheet drying apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US3800432A (nl) |
JP (1) | JPS5017126B1 (nl) |
GB (1) | GB1362866A (nl) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4084806A (en) * | 1976-11-10 | 1978-04-18 | Eastman Kodak Company | Sheet handling apparatus |
DE2747013A1 (de) * | 1976-10-20 | 1978-04-27 | Ciba Geigy Ag | Verfahren und einrichtung zum trocknen fotografischen materials |
US4106767A (en) * | 1975-12-12 | 1978-08-15 | G.A.O. Gesellschaft Fur Automation Und Organisation Mbh | Conveyor system for flat articles |
US4181420A (en) * | 1976-12-30 | 1980-01-01 | Hoechst Aktiengesellschaft | Development device for developing sheets of diazo copying material |
US4441806A (en) * | 1982-03-08 | 1984-04-10 | The Mead Corporation | Document exposure apparatus |
WO1992014979A1 (en) * | 1991-02-26 | 1992-09-03 | Carnaudmetalbox Plc | An oven |
US5183251A (en) * | 1988-10-13 | 1993-02-02 | Sardella Louis M | Conveyor system and feeding sheets |
US5261146A (en) * | 1991-04-04 | 1993-11-16 | Isover Saint-Gobain | Creping machine |
WO1994011689A1 (en) * | 1992-11-19 | 1994-05-26 | Yu Tom Yen Shing | Paper sheet coating apparatus with gas streams drying |
US5390428A (en) * | 1992-07-31 | 1995-02-21 | Eastman Kodak Company | Film transport means for use in a film dryer |
US5567481A (en) * | 1992-11-19 | 1996-10-22 | Yu; Tom Y. | Apparatus and method for coating and drying paper sheets |
US5815763A (en) * | 1996-03-28 | 1998-09-29 | Noritsu Koki Co., Ltd. | Conveying apparatus for photosensitive material |
NL1008885C2 (nl) * | 1998-04-15 | 1999-10-18 | B & M Systems B V | Inrichting voor het drogen van verpakkingen. |
US6813846B2 (en) * | 2001-03-28 | 2004-11-09 | Fuji Photo Film Co., Ltd. | Drying device |
US20080206455A1 (en) * | 2006-09-25 | 2008-08-28 | Fujifilm Corporation | Method and apparatus for drying coating film and method for producing optical film |
US20110164101A1 (en) * | 2010-01-07 | 2011-07-07 | Canon Kabushiki Kaisha | Drying apparatus and printing apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2000273953B2 (en) * | 2000-09-13 | 2005-04-28 | Memjet Technology Limited | A loading mechanism for a modular commercial printer |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1426095A (en) * | 1920-10-18 | 1922-08-15 | Albert H Parker | Drier for drying coated paper |
US1560579A (en) * | 1923-11-23 | 1925-11-10 | Eastman Kodak Co | Suction conveyer for sheet material |
GB288139A (en) * | 1927-03-31 | 1929-06-20 | Schilde Maschb Ag | Improvements in the drying of cardboard and the like |
DE742858C (de) * | 1937-05-25 | 1952-02-14 | Richard Dirks Frankenberg Sach | Kettengarntrockner |
US3071866A (en) * | 1959-09-14 | 1963-01-08 | Miami Herald Publishing Compan | High speed photographic print drying machine |
US3199213A (en) * | 1961-07-12 | 1965-08-10 | Crown Zellerbach Canada Ltd | Method of changing the moisture content of wood |
US3328895A (en) * | 1964-04-30 | 1967-07-04 | Donnelley & Sons Co | Web dryer |
US3369306A (en) * | 1965-03-30 | 1968-02-20 | Singer Cobble Ltd | Conveyors |
US3405456A (en) * | 1967-06-16 | 1968-10-15 | Taylor Publishing Co | Film dryer |
US3434225A (en) * | 1967-09-05 | 1969-03-25 | Logetronics Inc | Drier for film processors |
US3440944A (en) * | 1964-02-15 | 1969-04-29 | Keuffel & Esser Co | Process and apparatus for the development of photocopying material |
US3681853A (en) * | 1971-03-15 | 1972-08-08 | Pako Corp | Dryer for sheet material |
-
1970
- 1970-08-20 JP JP45072923A patent/JPS5017126B1/ja active Pending
-
1971
- 1971-08-16 US US00172100A patent/US3800432A/en not_active Expired - Lifetime
- 1971-08-20 GB GB3926871A patent/GB1362866A/en not_active Expired
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1426095A (en) * | 1920-10-18 | 1922-08-15 | Albert H Parker | Drier for drying coated paper |
US1560579A (en) * | 1923-11-23 | 1925-11-10 | Eastman Kodak Co | Suction conveyer for sheet material |
GB288139A (en) * | 1927-03-31 | 1929-06-20 | Schilde Maschb Ag | Improvements in the drying of cardboard and the like |
DE742858C (de) * | 1937-05-25 | 1952-02-14 | Richard Dirks Frankenberg Sach | Kettengarntrockner |
US3071866A (en) * | 1959-09-14 | 1963-01-08 | Miami Herald Publishing Compan | High speed photographic print drying machine |
US3199213A (en) * | 1961-07-12 | 1965-08-10 | Crown Zellerbach Canada Ltd | Method of changing the moisture content of wood |
US3440944A (en) * | 1964-02-15 | 1969-04-29 | Keuffel & Esser Co | Process and apparatus for the development of photocopying material |
US3328895A (en) * | 1964-04-30 | 1967-07-04 | Donnelley & Sons Co | Web dryer |
US3369306A (en) * | 1965-03-30 | 1968-02-20 | Singer Cobble Ltd | Conveyors |
US3405456A (en) * | 1967-06-16 | 1968-10-15 | Taylor Publishing Co | Film dryer |
US3434225A (en) * | 1967-09-05 | 1969-03-25 | Logetronics Inc | Drier for film processors |
US3681853A (en) * | 1971-03-15 | 1972-08-08 | Pako Corp | Dryer for sheet material |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4106767A (en) * | 1975-12-12 | 1978-08-15 | G.A.O. Gesellschaft Fur Automation Und Organisation Mbh | Conveyor system for flat articles |
DE2747013A1 (de) * | 1976-10-20 | 1978-04-27 | Ciba Geigy Ag | Verfahren und einrichtung zum trocknen fotografischen materials |
US4142301A (en) * | 1976-10-20 | 1979-03-06 | Ciba-Geigy Ag | Method and apparatus for drying photographic material |
US4084806A (en) * | 1976-11-10 | 1978-04-18 | Eastman Kodak Company | Sheet handling apparatus |
US4181420A (en) * | 1976-12-30 | 1980-01-01 | Hoechst Aktiengesellschaft | Development device for developing sheets of diazo copying material |
US4441806A (en) * | 1982-03-08 | 1984-04-10 | The Mead Corporation | Document exposure apparatus |
US5183251A (en) * | 1988-10-13 | 1993-02-02 | Sardella Louis M | Conveyor system and feeding sheets |
WO1992014979A1 (en) * | 1991-02-26 | 1992-09-03 | Carnaudmetalbox Plc | An oven |
GB2266580A (en) * | 1991-02-26 | 1993-11-03 | Metal Box Plc | An oven |
US5504271A (en) * | 1991-02-26 | 1996-04-02 | Carnaudmetalbox Plc | Oven |
GB2266580B (en) * | 1991-02-26 | 1994-09-28 | Metal Box Plc | An oven |
US5261146A (en) * | 1991-04-04 | 1993-11-16 | Isover Saint-Gobain | Creping machine |
US5390428A (en) * | 1992-07-31 | 1995-02-21 | Eastman Kodak Company | Film transport means for use in a film dryer |
WO1994011689A1 (en) * | 1992-11-19 | 1994-05-26 | Yu Tom Yen Shing | Paper sheet coating apparatus with gas streams drying |
US5567481A (en) * | 1992-11-19 | 1996-10-22 | Yu; Tom Y. | Apparatus and method for coating and drying paper sheets |
US5815763A (en) * | 1996-03-28 | 1998-09-29 | Noritsu Koki Co., Ltd. | Conveying apparatus for photosensitive material |
NL1008885C2 (nl) * | 1998-04-15 | 1999-10-18 | B & M Systems B V | Inrichting voor het drogen van verpakkingen. |
US6813846B2 (en) * | 2001-03-28 | 2004-11-09 | Fuji Photo Film Co., Ltd. | Drying device |
US20080206455A1 (en) * | 2006-09-25 | 2008-08-28 | Fujifilm Corporation | Method and apparatus for drying coating film and method for producing optical film |
US7526878B2 (en) * | 2006-09-25 | 2009-05-05 | Fujifilm Corporation | Method and apparatus for drying coating film and method for producing optical film |
US20110164101A1 (en) * | 2010-01-07 | 2011-07-07 | Canon Kabushiki Kaisha | Drying apparatus and printing apparatus |
US8573764B2 (en) * | 2010-01-07 | 2013-11-05 | Canon Kabushiki Kaisha | Drying apparatus and printing apparatus |
Also Published As
Publication number | Publication date |
---|---|
GB1362866A (en) | 1974-08-07 |
JPS5017126B1 (nl) | 1975-06-18 |
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