FR999518A - Black dyes for leather and their preparation process - Google Patents

Black dyes for leather and their preparation process

Info

Publication number
FR999518A
FR999518A FR999518DA FR999518A FR 999518 A FR999518 A FR 999518A FR 999518D A FR999518D A FR 999518DA FR 999518 A FR999518 A FR 999518A
Authority
FR
France
Prior art keywords
leather
preparation process
black dyes
dyes
black
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
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
Original Assignee
JR Geigy 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
Application filed by JR Geigy AG filed Critical JR Geigy AG
Application granted granted Critical
Publication of FR999518A publication Critical patent/FR999518A/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
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/44—Trisazo dyes ot the type the component K being a hydroxy amine
    • C09B35/46—Trisazo dyes ot the type the component K being a hydroxy amine the component K being an amino naphthol

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR999518D 1948-11-12 1949-11-10 Black dyes for leather and their preparation process Expired FR999518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH999518X 1948-11-12

Publications (1)

Publication Number Publication Date
FR999518A true FR999518A (en) 1952-02-01

Family

ID=4551973

Family Applications (1)

Application Number Title Priority Date Filing Date
FR999518D Expired FR999518A (en) 1948-11-12 1949-11-10 Black dyes for leather and their preparation process

Country Status (1)

Country Link
FR (1) FR999518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2429863A1 (en) * 1978-06-27 1980-01-25 Bayer Ag Black tris:azo acid dyes of aromatic series - for use on nitrogen-contg. fibres esp. leather

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2429863A1 (en) * 1978-06-27 1980-01-25 Bayer Ag Black tris:azo acid dyes of aromatic series - for use on nitrogen-contg. fibres esp. leather

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