US3607346A - Layers method of wet transferring unexposed photographic emulsion - Google Patents
Layers method of wet transferring unexposed photographic emulsion Download PDFInfo
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- US3607346A US3607346A US818100A US3607346DA US3607346A US 3607346 A US3607346 A US 3607346A US 818100 A US818100 A US 818100A US 3607346D A US3607346D A US 3607346DA US 3607346 A US3607346 A US 3607346A
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- emulsion layer
- support
- aqueous bath
- saccharide
- per liter
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- 239000000839 emulsion Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 29
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 20
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 9
- 239000008103 glucose Substances 0.000 claims description 8
- 150000003842 bromide salts Chemical class 0.000 claims description 7
- 229930006000 Sucrose Natural products 0.000 claims description 4
- 239000005720 sucrose Substances 0.000 claims description 4
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims description 2
- 125000000185 sucrose group Chemical group 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 11
- 239000004332 silver Substances 0.000 abstract description 11
- -1 silver halide Chemical class 0.000 abstract description 11
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 14
- 239000011521 glass Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000376 autoradiography Methods 0.000 description 3
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 2
- 229960002737 fructose Drugs 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 241001263323 Maclura tinctoria Species 0.000 description 1
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 description 1
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000008121 dextrose Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229930182830 galactose Natural products 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000012260 resinous material Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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
- G03C1/00—Photosensitive materials
- G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
Definitions
- Said method comprises suspending a stripped emulsion layer in an aqueous bath comprising a saccharide at a concentration of about 1 to 200 grams per liter, positioning a support beneath and contiguous to said layer, and removing said support bearing the emulsion layer from the bath.
- This invention relates to a method of transferring layers of a photographic emulsion to another support.
- this invention relates to an improved method of wettransferring autoradiographic photographic silver halide emulsion layers to an irregular surface.
- An improved method of wet-transferring a photographic emulsion layer is desired without substantially increasing fog or affecting the other photographic properties of the emulsion.
- said method for transferring a photographic silver halide emulsion layer comprises suspending said emulsion layer in an aqueous bath, positioning a support in contiguous relationship with said emulsion layer and removing said support with said emulsion layer simultaneously from said aqueous bath containing a saccharide at a concentration of at least about 1 gram per liter.
- said saccharide is glucose
- said aqueous bath comprises a saccharide at a concentration from about 1 to about 200 grams per liter and a soluble bromide salt at a concentration from about 1 to about 100 mg. per liter.
- this invention provides a very good method for transferring a photographic emulsion layer to an uneven surface without substantial reduction in some of the desired photographic properties.
- Typical saccharides which can be used in the practice of this invention include monoor di-saccharides such as, for example, glucose, dextrose, sucrose, fructose, galactose, maltose, levulose, lactose and the like, though glucose and sucrose are preferred.
- a saccharide concentration of at least about 1 gram per liter and generally in the range from about 1 to about 200 grams per liter is useful.
- a saccharide concentration from about to about 100 grams per liter is preferred.
- the aqueous transfer bath can comprise a saccharide alone.
- the transfer time i.e., interval of time during which the emulsion layer is suspended in the aqueous bath
- the transfer time can then be adjusted so that the concentration of bromide left in the emulsion layer has decreased to the desired level when the emulsion is removed from the bath on the support.
- the length of the transfer time can be determined experimentally by evaluating the relationship between sensitivity and transfer time.
- a preferred method is to add a soluble bromide salt to the aqueous bath comprising a saccharide and suspending the emulsion layer in the bath for a transfer time of about 5 minutes.
- the soluble bromide salt can be added at a rate from about 1 to about 100 milligrams per liter, preferably from about 3 to about 30 milligrams per liter.
- Suitable supports include cellulose nitrate film, cellulose ester film, polyvinyl acetal film, polystyrene film, poly(ethy1ene terephthalate) film and related films or resinous materials as well as glass, metal and the like.
- Supports such as paper which are coated with a-olefin polymers, particularly polymers of aolefins containing two or more carbon atoms, e.g.
- polyethylene, polypropylene and ethylene butene copolymers can also be employed.
- the practice of the invention is particularly suitable for transferring photographic silver halide emulsions uniformly onto supports which have nonflat or uneven surfaces.
- uneven-surfaced supports are those commonly used in autoradiography such as glass plates or slides bearing a specimen (e.g., a radioactive tissue section).
- the improved method of this invention can comprise the use of a dry-stripped emulsion layer which is stripped or peeled from its temporary support, such as a glass plate, and suspended in the aqueous bath for about 5 minutes or until said layer has swelled and stretched out tight and flat.
- An uneven-surfaced support placed in contiguous relationship with said emulsion layer and preferably beneath said layer is removed simultaneously with said layer from the aqueous bath at a slight angle to allow excess water to drain from between said layer and said support.
- said emulsion layer adheres to the contours of the uneven-surfaced support.
- the emulsion layer can then be exposed in a light, tight box. In autoradiography, lengthy exposure times of from a few days to many weeks are common.
- Photographic silver halide emulsion layers are stripped from fine-grain autoradiographic stripping plates of the type disclosed in Data Book of Applied Photography, Autoradiography, Vol. 2, SClO, and suspended for 5 minutes in different aqueous baths comprising glucose and/or potassium bromide at concentrations as disclosed in Tables 1 and 2 below.
- the emulsion layers are removed from the: aqueous baths on glass plates and dried. Some plates are contacted or exposed to low activity sources prepared with radioactive silver 1110. Other plates are stored at ambient-room temperature and humidity. All plates are developed for 5 minutes in Kodak (TM) Developer D19 at 20 C. Fog rise in unexposed plates held for 4, l2 and 24 weeks is determined by counts of fog grains as set forth in Table 1. In Table 2 the densities of plates exposed to a low activity source for 1, l2 and 24 weeks are given.
- KBr 40 mg./l... KBr, 801ng./l 1 6 Glucose, 5D g./l. with KBr, 10 mg./l.
- a method for transferring an unexposed photographic silver halide emulsion layer comprising suspending said layer in an aqueous bath, positioning a support in contiguous relationship with said layer and removing said emulsion layer on said support simultaneously from said aqueous bath, an improvement comprising a saccharide concentration in said aqueous bath of from at least about 1 gram to about 200 grams per liter.
- said aqueous bath comprises a saccharide concentration in said aqueous bath of at least about 1 gram to about 200 grams per liter and a soluble bromide salt concentration from about 1 to about 100 mg.
- An improved method of wet-transferring an unexposed photographic dry-stripped emulsion layer uniformly to an uneven-surfaced support comprising suspending said emulsion layer in an aqueous bath comprising a saccharide at a concentration of from at least about 1 gram to about 200 grams per liter, positioning said support beneath and in contiguous relationship with said emulsion layer and removing said support bearing said emulsion layer from said aqueous bath.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
A method of retaining the sensitomeric properties of photographic silver halide emulsion layers which have been transferred from one support to another via an aqueous bath. Said method comprises suspending a stripped emulsion layer in an aqueous bath comprising a saccharide at a concentration of about 1 to 200 grams per liter, positioning a support beneath and contiguous to said layer, and removing said support bearing the emulsion layer from the bath.
Description
Unite States Patet Inventors Appl. No. Filed Patented Assignee LAYERS METHOD OF WET TRANSFEING UNEXPOSED PHOTOGRAPHIC EMULSION 8 (Ilaims, No Drawings lint. Cl G03c 1/90, 603C 1 1/12 Field of Search 96/28, 109,
[56] References Cited UNITED STATES PATENTS 3,185,569 5/1965 Weber 96/109 FOREIGN PATENTS 1,062,116 3/1967 Great Britain Primary Examiner-N0rman G. Torchin Assistant Examiner-John Winkelman Attorneys-William H. J. Kline, Bernard D Wiese and Gerald E. Battist ABSTRACT: A method of retaining the sensitomeric properties of photographic silver halide emulsion layers which have been transferred from one support to another via an aqueous bath. Said method comprises suspending a stripped emulsion layer in an aqueous bath comprising a saccharide at a concentration of about 1 to 200 grams per liter, positioning a support beneath and contiguous to said layer, and removing said support bearing the emulsion layer from the bath.
[AYERS METHOD OF WET TRANSFERRING UNEXPOSED PHOTOGRAPHIC EMULSION This invention relates to a method of transferring layers of a photographic emulsion to another support. In one specific aspect, this invention relates to an improved method of wettransferring autoradiographic photographic silver halide emulsion layers to an irregular surface.
It is known that in wet-transferring methods conducted in water, the loss of soluble halide from the silver halide emulsion results in an increase in sensitivity and a growth of fog. It is also known that fog growth can be inhibited by the addition of a soluble bromide salt to the transfer water. However, the use of bromide salts has, in some instances, produced reduced sensitivity, increased fog after extended exposures, etc.
An improved method of wet-transferring a photographic emulsion layer is desired without substantially increasing fog or affecting the other photographic properties of the emulsion.
We have now found an improved method of wet-transferring photographic silver halide emulsion layers which generally comprises utilizing a saccharide in the aqueous transfer solution.
In one embodiment, said method for transferring a photographic silver halide emulsion layer comprises suspending said emulsion layer in an aqueous bath, positioning a support in contiguous relationship with said emulsion layer and removing said support with said emulsion layer simultaneously from said aqueous bath containing a saccharide at a concentration of at least about 1 gram per liter.
In another embodiment, said saccharide is glucose.
ln a preferred embodiment, said aqueous bath comprises a saccharide at a concentration from about 1 to about 200 grams per liter and a soluble bromide salt at a concentration from about 1 to about 100 mg. per liter.
In another embodiment, this invention provides a very good method for transferring a photographic emulsion layer to an uneven surface without substantial reduction in some of the desired photographic properties.
The practice of the invention as herein disclosed results in autoradiographs with improved photographic characteristics.
Typical saccharides which can be used in the practice of this invention include monoor di-saccharides such as, for example, glucose, dextrose, sucrose, fructose, galactose, maltose, levulose, lactose and the like, though glucose and sucrose are preferred. A saccharide concentration of at least about 1 gram per liter and generally in the range from about 1 to about 200 grams per liter is useful. A saccharide concentration from about to about 100 grams per liter is preferred.
ln emulsion layers containing a significant excess of free bromide ions, the aqueous transfer bath can comprise a saccharide alone. The transfer time (i.e., interval of time during which the emulsion layer is suspended in the aqueous bath) can then be adjusted so that the concentration of bromide left in the emulsion layer has decreased to the desired level when the emulsion is removed from the bath on the support. The length of the transfer time can be determined experimentally by evaluating the relationship between sensitivity and transfer time.
A preferred method is to add a soluble bromide salt to the aqueous bath comprising a saccharide and suspending the emulsion layer in the bath for a transfer time of about 5 minutes. Generally the soluble bromide salt can be added at a rate from about 1 to about 100 milligrams per liter, preferably from about 3 to about 30 milligrams per liter.
The practice of the invention as herein disclosed is a useful method for coating or transferring any photographic silver ha lide emulsion layer onto a suitable support. Examples of suitable supports include cellulose nitrate film, cellulose ester film, polyvinyl acetal film, polystyrene film, poly(ethy1ene terephthalate) film and related films or resinous materials as well as glass, metal and the like. Supports such as paper which are coated with a-olefin polymers, particularly polymers of aolefins containing two or more carbon atoms, e.g.
polyethylene, polypropylene and ethylene butene copolymers, can also be employed. The practice of the invention is particularly suitable for transferring photographic silver halide emulsions uniformly onto supports which have nonflat or uneven surfaces. Examples of uneven-surfaced supports are those commonly used in autoradiography such as glass plates or slides bearing a specimen (e.g., a radioactive tissue section).
The improved method of this invention can comprise the use of a dry-stripped emulsion layer which is stripped or peeled from its temporary support, such as a glass plate, and suspended in the aqueous bath for about 5 minutes or until said layer has swelled and stretched out tight and flat. An uneven-surfaced support placed in contiguous relationship with said emulsion layer and preferably beneath said layer is removed simultaneously with said layer from the aqueous bath at a slight angle to allow excess water to drain from between said layer and said support. After drying at ambient-room temperatures or in a stream of cold air, said emulsion layer adheres to the contours of the uneven-surfaced support. The emulsion layer can then be exposed in a light, tight box. In autoradiography, lengthy exposure times of from a few days to many weeks are common.
This invention is further illustrated by the following example.
EXAMPLE Photographic silver halide emulsion layers are stripped from fine-grain autoradiographic stripping plates of the type disclosed in Data Book of Applied Photography, Autoradiography, Vol. 2, SClO, and suspended for 5 minutes in different aqueous baths comprising glucose and/or potassium bromide at concentrations as disclosed in Tables 1 and 2 below. The emulsion layers are removed from the: aqueous baths on glass plates and dried. Some plates are contacted or exposed to low activity sources prepared with radioactive silver 1110. Other plates are stored at ambient-room temperature and humidity. All plates are developed for 5 minutes in Kodak (TM) Developer D19 at 20 C. Fog rise in unexposed plates held for 4, l2 and 24 weeks is determined by counts of fog grains as set forth in Table 1. In Table 2 the densities of plates exposed to a low activity source for 1, l2 and 24 weeks are given.
TABLE 1 Fog grains per 101111 Sample No. Transfer bath Fresh 4 wks. 12 wks.
24 wlrs.
KBr, 40 mg./l... KBr, 801ng./l 1 6 Glucose, 5D g./l. with KBr, 10 mg./l.
TABLE 2 Density on exposure to a low activity source Sample 0. Transfer bath 1 wk.
12 wks. 24 wks.
1 Water (control)...
4 KBr, 40 rngJl 0.
5 KBr, mg./l 0
6 Glucose 50 g./l. with KBr, 10 0 mgJl.
Although the invention has been described in considerable detail with particular reference to certain preferred embodiments thereof, variations and modifications can be effected within the spirit and scope of the invention.
We claim:
1. In a method for transferring an unexposed photographic silver halide emulsion layer comprising suspending said layer in an aqueous bath, positioning a support in contiguous relationship with said layer and removing said emulsion layer on said support simultaneously from said aqueous bath, an improvement comprising a saccharide concentration in said aqueous bath of from at least about 1 gram to about 200 grams per liter.
2. The improvement of claim 1 glucose.
3. The improvement of claim 1 wherein said saccharide is sucrose.
4. The improvement of claim 1 wherein said aqueous bath comprises a saccharide concentration in said aqueous bath of at least about 1 gram to about 200 grams per liter and a soluble bromide salt concentration from about 1 to about 100 mg.
wherein said saccharide is per liter.
5. The method of claim 1 wherein said support is beneath said emulsion layer upon said simultaneous removal of both from said aqueous bath.
6. The method of claim 1 wherein said support comprises an uneven surface in contiguous relationship with said emulsion layer upon removal of said support from said aqueous bath.
7. The method of claim 1 wherein said emulsion layer is drystripped from another support before suspending in said aqueous bath.
8. An improved method of wet-transferring an unexposed photographic dry-stripped emulsion layer uniformly to an uneven-surfaced support, said method comprising suspending said emulsion layer in an aqueous bath comprising a saccharide at a concentration of from at least about 1 gram to about 200 grams per liter, positioning said support beneath and in contiguous relationship with said emulsion layer and removing said support bearing said emulsion layer from said aqueous bath.
555 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION 3,607, 3Lp6 Dated September 21 'l 97! Patent No.
Rex L. Darlow, Guy W. W. Stevens, Jill F. Wood Inventor(s) It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
I' Title is incorrect. Should read Method 6'5 Wet Transferring Unexposed Photographic Emulsion Layers--- Abstract, line I "sensitomeric" should read ---sensitometric---.
Column 2, line 1414. (page L line 15 of the application),
after "Table 1 insert ---below--.
Column 2, line 65 (page L line 36 of the application),
'1 .65" should read ---1 6L1.---.
Signed and sealed this 11th day of April 1972.
(SEAL) Attest:
EDWABD M.FLET( IHER,JR. ROBERT GOT'ISCHALK Attestlng Officer Commissioner of Patents
Claims (7)
- 2. The improvement of claim 1 wherein said saccharide is glucose.
- 3. The improvement of claim 1 wherein said saccharide is sucrose.
- 4. The improvement of claim 1 wherein said aqueous bath comprises a saccharide concentration in said aqueous bath of at least about 1 gram to about 200 grams per liter and a soluble bromide salt concentration from about 1 to about 100 mg. per liter.
- 5. The method of claim 1 wherein said support is beneath said emulsion layer upon said simultaneous removal of both from said aqueous bath.
- 6. The method of claim 1 wherein said support comprises an uneven surface in contiguous relationship with said emulsion layer upon removal of said support from said aqueous bath.
- 7. The method of claim 1 wherein said emulsion layer is dry-stripped from another support before suspending in said aqueous bath.
- 8. An improved method of wet-transferring an unexposed photographic dry-stripped emulsion layer uniformly to an uneven-surfaced support, said method comprising suspending said emulsion layer in an aqueous bath comprising a saccharide at a concentration of from at least about 1 gram to about 200 grams per liter, positioning said support beneath and in contiguous relationship with said emulsion layer and removing said support bearing said emulsion layer from said aqueous bath.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81810069A | 1969-04-21 | 1969-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3607346A true US3607346A (en) | 1971-09-21 |
Family
ID=25224673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US818100A Expired - Lifetime US3607346A (en) | 1969-04-21 | 1969-04-21 | Layers method of wet transferring unexposed photographic emulsion |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3607346A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3867227A (en) * | 1973-01-12 | 1975-02-18 | Jenoptik Jena Gmbh | Method for producing super smooth photo plates |
| WO1988005559A1 (en) * | 1987-01-22 | 1988-07-28 | The Foxboro Company | Method of patterning resist |
| US5015553A (en) * | 1985-06-10 | 1991-05-14 | The Foxboro Company | Method of patterning resist |
| US5254435A (en) * | 1985-06-10 | 1993-10-19 | The Foxboro Company | Method of patterning resist |
| US5260168A (en) * | 1989-10-13 | 1993-11-09 | The Foxboro Company | Application specific tape automated bonding |
| CN106842810A (en) * | 2015-12-07 | 2017-06-13 | 蔡元 | " bold and vigorous " formula photographic printing method in classic print |
| CN106842808A (en) * | 2015-12-07 | 2017-06-13 | 蔡元 | " mist " shape photographic printing method in classic shade |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3185569A (en) * | 1962-08-29 | 1965-05-25 | Du Pont | Photographic silver halide material containing lactose |
| GB1062116A (en) * | 1964-04-10 | 1967-03-15 | Ilford Ltd | Photographic silver halide emulsions |
-
1969
- 1969-04-21 US US818100A patent/US3607346A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3185569A (en) * | 1962-08-29 | 1965-05-25 | Du Pont | Photographic silver halide material containing lactose |
| GB1062116A (en) * | 1964-04-10 | 1967-03-15 | Ilford Ltd | Photographic silver halide emulsions |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3867227A (en) * | 1973-01-12 | 1975-02-18 | Jenoptik Jena Gmbh | Method for producing super smooth photo plates |
| US5015553A (en) * | 1985-06-10 | 1991-05-14 | The Foxboro Company | Method of patterning resist |
| US5254435A (en) * | 1985-06-10 | 1993-10-19 | The Foxboro Company | Method of patterning resist |
| WO1988005559A1 (en) * | 1987-01-22 | 1988-07-28 | The Foxboro Company | Method of patterning resist |
| US5260168A (en) * | 1989-10-13 | 1993-11-09 | The Foxboro Company | Application specific tape automated bonding |
| US5378581A (en) * | 1989-10-13 | 1995-01-03 | The Foxboro Company | Application specific tape automated bonding |
| CN106842810A (en) * | 2015-12-07 | 2017-06-13 | 蔡元 | " bold and vigorous " formula photographic printing method in classic print |
| CN106842808A (en) * | 2015-12-07 | 2017-06-13 | 蔡元 | " mist " shape photographic printing method in classic shade |
| WO2017096741A1 (en) * | 2015-12-07 | 2017-06-15 | 蔡元 | "fogging" type photographic printing method for classical photographic prints |
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