DE454839C - Photographic developer - Google Patents

Photographic developer

Info

Publication number
DE454839C
DE454839C DEI29537D DEI0029537D DE454839C DE 454839 C DE454839 C DE 454839C DE I29537 D DEI29537 D DE I29537D DE I0029537 D DEI0029537 D DE I0029537D DE 454839 C DE454839 C DE 454839C
Authority
DE
Germany
Prior art keywords
oxybenzene
developer
amino
photographic developer
photographic
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
Application number
DEI29537D
Other languages
German (de)
Inventor
Dr Werner Mueller
Dr Gustav Reddelien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BE344628D priority Critical patent/BE344628A/xx
Priority to BE352439D priority patent/BE352439A/xx
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI29537D priority patent/DE454839C/en
Priority to FR636478D priority patent/FR636478A/fr
Priority to DEI31951D priority patent/DE465902C/en
Priority to FR649761D priority patent/FR649761A/en
Priority to BE345504A priority patent/BE345504A/fr
Priority to GB2750927A priority patent/GB280873A/en
Priority to DEI32645D priority patent/DE487788C/en
Priority to DEI32719D priority patent/DE467818C/en
Priority to GB3522427A priority patent/GB290997A/en
Publication of DE454839C publication Critical patent/DE454839C/en
Application granted granted Critical
Priority to FR35448D priority patent/FR35448E/en
Priority to FR35793D priority patent/FR35793E/en
Priority to FR35829D priority patent/FR35829E/en
Priority to BE354050A priority patent/BE354050R/fr
Priority to GB3251828A priority patent/GB300503A/en
Priority to GB3422828A priority patent/GB300970A/en
Priority to DEI39068D priority patent/DE507022C/en
Priority to FR38219D priority patent/FR38219E/en
Expired legal-status Critical Current

Links

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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/30—Developers
    • G03C5/3021—Developers with oxydisable hydroxyl or amine groups linked to an aromatic ring

Description

Photographische Entwickler. Bekanntlich- besitzen das 4-Amino-i-oxybenzol und seine N-monoalkylierten Derivate die Eigenschaft, das latente photographische Bild in- halogensilberhaltigen Schichten zu entwickeln. Von den zweifach am Stickstoff substituierten 4-Amino-i-oxybenzolen sind bisher nur die 4-Oxyphenylalkylglycine als photographische Entwickler erkannt.Photographic developer. It is well known that 4-amino-i-oxybenzene is possessed and its N-monoalkylated derivatives have the property of being latent photographic Develop image in halosilver-containing layers. Of the twofold on nitrogen substituted 4-amino-i-oxybenzenes are so far only the 4-oxyphenylalkylglycines recognized as a photographic developer.

Es wurde nun gefunden, daß die Oxyäthylderivate des 4-Amino-i-oxybenzols, das 4-Oxyäthylamino-i-oxybenzol- wie auch überraschenderweise das 4-Dioxyäthylamino-ioxybenzol besonders gute Entwicklereigenschaften aufweisen. Dies war in keiner Weise vorauszusehen, da das 4-Dimethylamino-ioxybenzol beispielsweise das latente photographische Bild nicht zu entwickeln vermag.It has now been found that the oxyethyl derivatives of 4-amino-i-oxybenzene, 4-oxyäthylamino-i-oxybenzene and, surprisingly, 4-dioxyäthylamino-ioxybenzene have particularly good developer properties. This could not be foreseen in any way since the 4-dimethylamino-ioxybenzene, for example, is the latent photographic image unable to develop.

Eine Lösung von i g 4-Dioxyäthylaminoi-oxybenzol in soo ccm Wasser mit io g kristallisiertem Natriumsulfit, io g Kaliumcarbonät und o,o5 g Kaliumbromid entwickelt ebenso wie ein mit 4-Amino-i-oxybenzol als Entwicklungsstoff angesetzter Entwickler zweckmäßiger Zusammensetzung und von normaler Verdünnung. Vor diesem hat der neue Entwicklungsstoff den Vorzug unbegrenzter Haltbarkeit im festen Zustande und einer ganz wesentlich größeren Beständigkeit in der alkalischen Entwicklerlösung. Während sich eine Entwicklerlösung von 4-Amino-ioxybenzol beim Stehen an der Luft rasch dunkel färbt, ist eine solche von 4-Dioxyäthylamino-i-oxybenzol auch nach Tagen nicht verändert.A solution of 1 g of 4-dioxyethylamino-oxybenzene in soo ccm of water with 10 g of crystallized sodium sulfite, 10 g of potassium carbonate and 0.05 g of potassium bromide developed as well as one made up with 4-amino-i-oxybenzene as a developing agent Developer of suitable composition and normal dilution. Before this the new development material has the advantage of unlimited durability in the solid state and a much greater stability in the alkaline developer solution. During a developing solution of 4-Amino-ioxybenzene when standing in the air quickly turns dark, there is also one of 4-dioxyethylamino-i-oxybenzene after Days not changed.

Eine Lösung von i g des Sulfates des 4-Oxyäthylamino-i-oxybenzols in zoo ccm Wasser mit 2o g kristallisiertem Natriumsulfit und 5 g Kaliumcarbonat entwickelt wesentlich stärker als ein normaler 4-Amino-i-oxybenzol-Entwickler. Der neue Entwickler ist durch eine außerordentliche Löslichkeit, durch seine bemerkenswerte Haltbarkeit auch in alkalischen Lösungen und durch den besonderen Vorzug, selbst in kaliumbromidfreien Lösungen völlig schleierfrei zu entwickeln, sogar den besten bisher bekannten Entwicklern überlegen.A solution of 1 g of the sulfate of 4-oxyäthylamino-i-oxybenzene in zoo cc of water with 20 g of crystallized sodium sulfite and 5 g of potassium carbonate develops much more strongly than a normal 4-amino-i-oxybenzene developer. Of the new developer is remarkable for its extraordinary solubility Shelf life even in alkaline solutions and due to the special advantage of being self to develop completely haze-free in potassium bromide-free solutions, even the best superior to known developers.

Claims (1)

PATENTANSPRUCH: Photographische Entwickler, gekennzeichnet durch die Verwendung der N-Oxyäthylderivate des 4-Amino-i-oxvbenzols.PATENT CLAIM: Photographic developers, characterized by the Use of the N-oxyethyl derivatives of 4-amino-i-oxvbenzene.
DEI29537D 1926-11-19 1926-11-19 Photographic developer Expired DE454839C (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
BE344628D BE344628A (en) 1926-11-19
BE352439D BE352439A (en) 1926-11-19
DEI29537D DE454839C (en) 1926-11-19 1926-11-19 Photographic developer
FR636478D FR636478A (en) 1926-11-19 1927-06-23
DEI31951D DE465902C (en) 1926-11-19 1927-08-18 Photographic developer
FR649761D FR649761A (en) 1926-11-19 1927-10-10 Process for the manufacture of n-oxyethyl derivatives of 4-amino-1-oxybenzol or 2-amino-1-oxybenzol
BE345504A BE345504A (en) 1926-11-19 1927-10-12
GB2750927A GB280873A (en) 1926-11-19 1927-10-17 Manufacture of photographic developers
DEI32645D DE487788C (en) 1926-11-19 1927-11-12 Process for the preparation of the N-oxyaethyl derivatives of nuclear substitution products and homologues of 4-amino-1-oxybenzene
DEI32719D DE467818C (en) 1926-11-19 1927-11-21 Photographic developer
GB3522427A GB290997A (en) 1926-11-19 1927-12-29 Manufacture of n-oxyethyl-derivatives of 4-amino-1-oxybenzene
FR35448D FR35448E (en) 1926-11-19 1928-06-19 Process for the manufacture of n-oxyethyl derivatives of 4-amino-1-oxy-benzol or 2-amino-1-oxybenzol
FR35793D FR35793E (en) 1926-11-19 1928-08-10 Photographic developers
FR35829D FR35829E (en) 1926-11-19 1928-08-31 Process for the manufacture of n-oxyethyl derivatives of 4 amino-1-oxy-benzol and 2 amino-1-oxybenzol
BE354050A BE354050R (en) 1926-11-19 1928-09-06
GB3251828A GB300503A (en) 1926-11-19 1928-11-07 Manufacture of n-oxyethyl-derivatives of nucleal substitution products and homologues of 4-amino-1-oxybenzene
GB3422828A GB300970A (en) 1926-11-19 1928-11-21
DEI39068D DE507022C (en) 1926-11-19 1929-08-19 Photographic developer
FR38219D FR38219E (en) 1926-11-19 1930-04-10 Photographic developers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI29537D DE454839C (en) 1926-11-19 1926-11-19 Photographic developer

Publications (1)

Publication Number Publication Date
DE454839C true DE454839C (en) 1928-01-19

Family

ID=7187346

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI29537D Expired DE454839C (en) 1926-11-19 1926-11-19 Photographic developer

Country Status (1)

Country Link
DE (1) DE454839C (en)

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