DE267384C - - Google Patents

Info

Publication number
DE267384C
DE267384C DENDAT267384D DE267384DA DE267384C DE 267384 C DE267384 C DE 267384C DE NDAT267384 D DENDAT267384 D DE NDAT267384D DE 267384D A DE267384D A DE 267384DA DE 267384 C DE267384 C DE 267384C
Authority
DE
Germany
Prior art keywords
dimethylindigo
indigo
patents
yellow
preparation
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.)
Active
Application number
DENDAT267384D
Other languages
German (de)
Publication of DE267384C publication Critical patent/DE267384C/de
Active 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
    • C09B7/00—Indigoid dyes
    • C09B7/02—Bis-indole indigos

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Darstellung von gelben Wollfarbstoffen, dadurch gekennzeichnet, daß man die nach dem Verfahren der Patente 259145 und 266875 aus Indigo bzw. 5, S^Dimethylindigo erhältlichen gelben Farbkörper mit rauchender Schwefelsäure in der Wärme behandelt.Process for the preparation of yellow wool dyes, characterized in that, that one by the method of patents 259145 and 266875 from indigo or 5, S ^ dimethylindigo available yellow color bodies with fuming sulfuric acid treated in the heat.
DENDAT267384D Active DE267384C (en)

Publications (1)

Publication Number Publication Date
DE267384C true DE267384C (en)

Family

ID=524451

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT267384D Active DE267384C (en)

Country Status (1)

Country Link
DE (1) DE267384C (en)

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