US4960683A
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Method for processing a black-and-white photosensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1988-06-29
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Granted: 1990-10-02
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Expires: 2008-06-29
Abstract
Abstract A method for processing a black-and-white photosensitive material comprising the steps of: (a) exposing a silver halide photosensitive material having been spectrally sensitized with a sensitizing dye; (b) developing the exposed material; (c) fixing the developed material; and (d) thereafter at least one step selected from washing the material and stabilizing the material; at least one of the fixing, washing and stabilizing steps being performed in the presence of at least one compound represented by formula (I) or (II) or a salt thereof; <IMAGE> (I) wherein A represents an atomic group necessary for forming a saturated or unsaturated 3-membered to 8-membered ring comprising at least one hetero atom selected from an oxygen atom, a nitrogen atom, a sulfur atom and a selenium atom; and M represents a hydrogen atom or a counter cation; and X-(R1-S)n-R2-S-R3-Y (II) wherein R1, R2 and R3, which may be the same or different, each represents an alkylene group; R1 and R3 may be linked to form a ring, R2 and R3 may be linked to form a ring; X and Y, which may be the same or different, each represents a hydrogen atom, an alkyl group, an amino group, an ammonio group, a hydroxyl group, a carboxyl group, a sulfo group, an aminocarbonyl group or an aminosulfonyl group, and X and Y may be linked to form a ring; and n is an integer of from 0 to 10.
Inventors
- 👤 Masaki Okazaki
- 👤 Akihiko Ikegawa
- 👤 Minoeu Yamada
- 👤 Kunio Steo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:26
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/38; G03C5/268
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
247 words
A method for processing a black-and-white photosensitive material comprising the steps of: (a) exposing a silver halide photosensitive material having been spectrally sensitized with a sensitizing dye; (b) developing said exposed material; (c) fixing said developed material; and (d) thereafter at least one step selected from the group consisting of washing said material and stabilizing said material; said fixing step being performed in the presence of at least one compound represented by formula (I) or (II) or a salt thereof: ##STR10## wherein A represents an atomic group necessary for forming a saturated or unsaturated 3-membered to 8-membered ring comprising at least one hetero atom selected from the group consisting of an oxygen atom, a nitrogen atom, a sulfur atom and a selenium atom; and M represents a hydrogen atom or a counter cation; and X--(R.sub.1 --S).sub.n --R.sub.2 --S--R.sub.3 --Y (II) wherein R 1 , R 2 and R 3 , which may be the same or different, each represents an alkylene group; R 1 and R 3 may be linked to form a ring, R 2 and R 3 may be linked to form a ring; X and Y, which may be the same or different, each represents a hydrogen atom, an alkyl group, an amino group, an ammonio group, a hydroxyl group, a carboxyl group, a sulfo group, an aminocarbonyl group or an aminosulfonyl group, and X and Y may be linked to form a ring; and n is an integer of from 0 to 10.
Claim 2
Independent Claim
247 words
A method for processing a black-and-white photosensitive material comprising the steps of: (a) exposing a silver halide photosensitive material having been spectrally sensitized with a sensitizing dye; (b) developing said exposed material; (c) fixing said developed material; and (d) thereafter at least one step selected from the group consisting of washing said material and stabilizing said material; said fixing step being performed in the presence of at least one compound represented by formula (I) or (II) or a salt thereof: ##STR10## wherein A represents an atomic group necessary for forming a saturated or unsaturated 3-membered to 8-membered ring comprising at least one hetero atom selected from the group consisting of an oxygen atom, a nitrogen atom, a sulfur atom and a selenium atom; and M represents a hydrogen atom or a counter cation; and X--(R.sub.1 --S).sub.n --R.sub.2 --S--R.sub.3 --Y (II) wherein R 1 , R 2 and R 3 , which may be the same or different, each represents an alkylene group; R 1 and R 3 may be linked to form a ring, R 2 and R 3 may be linked to form a ring; X and Y, which may be the same or different, each represents a hydrogen atom, an alkyl group, an amino group, an ammonio group, a hydroxyl group, a carboxyl group, a sulfo group, an aminocarbonyl group or an aminosulfonyl group, and X and Y may be linked to form a ring; and n is an integer of from 0 to 10.
Claim 3
Dependent Claim
15 words
A method as claimed in claim 1, wherein said compound is represented by formula (I).
Claim 4
Dependent Claim
22 words
A method as claimed in claim 2, wherein --SM is linked to a carbon atom contained in the ring formed by A.
Claim 5
Dependent Claim
17 words
A method as claimed in claim 2, wherein said ring formed by A is a nitrogen-containing ring.
Claim 6
Dependent Claim
89 words
A method as claimed in claim 2, wherein said ring formed by A is substituted with at least one substituent selected from the group consisting of a hydroxyl group, an alkoxy group, an amino group, an ammonio group, an alkyl group, a mercapto group, an alkylthio group, a carbamoyl group, a sulfamoyl group, and one of these groups further substituted with a hydroxyl group, an alkoxy group, an amino group, an ammonio group, an alkyl group, a mercapto group, an alkylthio group, a carbomoyl group or a sulfamoyl group.
Claim 7
Dependent Claim
68 words
A method as claimed in claim 5, wherein said substituent is selected from the group consisting of an alkoxy group, an amino group, an ammonio group, an alkyl group, a mercapto group, an alkylthio group, an alkyl group substituted with an amino group, an alkyl group substituted with an ammonio group, an alkylthio group substituted with an amino group and an alkylthio group substituted with an ammonio group.
Claim 8
Dependent Claim
21 words
A method as claimed in claim 2, wherein M represents a hydrogen atom, an alkali metal atom or an organic base.
Claim 9
Dependent Claim
26 words
A method as claimed in claim 2, wherein the total number of carbon atoms contained in said compound represented by formula (I) is 30 or less.
Claim 10
Dependent Claim
26 words
A method as claimed in claim 8, wherein the total number of carbon atoms contained in said compound represented by formula (I) is 20 or less.
Claim 11
Dependent Claim
15 words
A method as claimed in claim 1, wherein said compound is represented by formula (II).
Claim 12
Dependent Claim
25 words
A method as claimed in claim 10, wherein said alkylene group represented by R 1 , R 2 or R 3 comprises an ether group.
Claim 13
Dependent Claim
47 words
A method as claimed in claim 10, wherein said alkylene group represented by R 1 , R 2 or R 3 contains from 1 to 10 carbon atoms; and X and Y each represents a hydrogen atom or a group containing from 1 to 10 carbon atoms.
Claim 14
Dependent Claim
38 words
A method as claimed in claim 12, wherein said alkylene group represented by R 1 , R 2 or R 3 contains from 1 to 6 carbon atoms; and n is an integer of from 1 to 4.
Claim 15
Dependent Claim
23 words
A method as claimed in claim 10, wherein X and Y each represents a hydrogen atom, an amino group or an ammonio group.
Claim 16
Dependent Claim
26 words
A method as claimed in claim 10, wherein said compound represented by formula (II) is a salt of said compound and an inorganic or organic acid.
Claim 17
Dependent Claim
22 words
A method as claimed in claim 1, wherein said method comprises a further step of drying said material after said step (d).
Claim 18
Dependent Claim
31 words
A method as claimed in claim 16, wherein said processing from the beginning of said developing step to the end of said drying step is completed in at most 90 seconds.
Claim 19
Dependent Claim
31 words
A method as claimed in claim 17, wherein said processing from the beginning of said developing step to the end of said drying step is completed in at most 70 seconds.
Claim 20
Dependent Claim
39 words
A method as claimed in claim 1, wherein said compound represented by formula (I) or (II) is present in an amount of from about 5×10 -5 to 1×10 -1 mol per liter of solution used in said fixing step.
Claim 21
Dependent Claim
35 words
A method as claimed in claim 19, wherein said compound represented by formula (I) or (II) is present in an amount of from about 1×10 -4 to 5×10 -2 mol per liter of said solution.
Claim 22
Dependent Claim
35 words
A method as claimed in claim 20, wherein said compound represented by formula (I) or (II) is present in an amount of from about 1×10 -3 to 5×10 -2 mol per liter of said solution.
Claim 23
Dependent Claim
39 words
A method as claimed in claim 19, wherein said method comprises a further step of replenishing said washing solution or said stabilizing solution in an amount up to about 2 liter per m 2 of said photosensitive material processed.
Claim 24
Dependent Claim
113 words
A method as claimed in claim 17, wherein said developing step is conducted at a temperature of from about 25° to 50° C. for a time up to about 20 seconds; said fixing step is conducted at a temperature of from about 20° to 50° C. for a time of from about 6 to 20 seconds; said at least one of the washing and stabilizing steps is conducted at a temperature of from 0° to 50° C. for a time of from about 6 to 20 seconds; and said drying step is conducted at a temperature of from about 40° to 100° C. for a time of from about 5 to 30 seconds.
Claim 25
Dependent Claim
113 words
A method as claimed in claim 23, wherein said developing step is conducted at a temperature of from about 30° to 40° C. for a time up to about 15 seconds; said fixing step is conducted at a temperature of from about 30° to 40° C. for a time of from about 6 to 15 seconds; said at least one of the washing and stabilizing steps is conducted at a temperature of from 15° to 40° C. for a time of from about 6 to 15 seconds; and said drying step is conducted at a temperature of from about 40° to 80° C. for a time of from about 5 to 20 seconds.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-10-01 | 1994-04-02 | 1994-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-01 | 1998-04-02 | 1998-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-01 | 2002-04-02 | 2002-10-02 | $7700.00 | Window Closed / Lapsed |