FR77765E - Colorants for use in the photographic silver bleaching process - Google Patents

Colorants for use in the photographic silver bleaching process

Info

Publication number
FR77765E
FR77765E FR827892A FR827892A FR77765E FR 77765 E FR77765 E FR 77765E FR 827892 A FR827892 A FR 827892A FR 827892 A FR827892 A FR 827892A FR 77765 E FR77765 E FR 77765E
Authority
FR
France
Prior art keywords
colorants
bleaching process
photographic silver
silver bleaching
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
FR827892A
Other languages
French (fr)
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.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba 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 claimed from CH6740358A external-priority patent/CH376768A/en
Priority claimed from CH7352759A external-priority patent/CH380533A/en
Application filed by Ciba Geigy AG, Ciba AG filed Critical Ciba Geigy AG
Priority to FR827892A priority Critical patent/FR77765E/en
Application granted granted Critical
Publication of FR77765E publication Critical patent/FR77765E/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/021—Disazo dyes characterised by two coupling components of the same type
    • C09B35/027—Disazo dyes characterised by two coupling components of the same type in which the coupling component is a hydroxy-amino compound
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/205—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene
    • C09B35/21—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of a diaryl- or triaryl- alkane or-alkene of diarylmethane or triarylmethane

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR827892A 1958-12-16 1960-05-21 Colorants for use in the photographic silver bleaching process Expired FR77765E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR827892A FR77765E (en) 1958-12-16 1960-05-21 Colorants for use in the photographic silver bleaching process

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH6740358A CH376768A (en) 1958-12-16 1958-12-16 Photographic material for the silver dye bleaching process
CH7352759A CH380533A (en) 1958-12-16 1959-05-22 Photographic layer for the silver dye bleaching process
FR827892A FR77765E (en) 1958-12-16 1960-05-21 Colorants for use in the photographic silver bleaching process

Publications (1)

Publication Number Publication Date
FR77765E true FR77765E (en) 1962-04-20

Family

ID=27178527

Family Applications (1)

Application Number Title Priority Date Filing Date
FR827892A Expired FR77765E (en) 1958-12-16 1960-05-21 Colorants for use in the photographic silver bleaching process

Country Status (1)

Country Link
FR (1) FR77765E (en)

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