DE114266C - - Google Patents

Info

Publication number
DE114266C
DE114266C DENDAT114266D DE114266DA DE114266C DE 114266 C DE114266 C DE 114266C DE NDAT114266 D DENDAT114266 D DE NDAT114266D DE 114266D A DE114266D A DE 114266DA DE 114266 C DE114266 C DE 114266C
Authority
DE
Germany
Prior art keywords
naphtazarin
unheated
gray
cotton
heating
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
DENDAT114266D
Other languages
German (de)
Publication of DE114266C publication Critical patent/DE114266C/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
    • C09B49/00—Sulfur dyes
    • C09B49/12—Sulfur dyes from other compounds, e.g. other heterocyclic compounds
    • C09B49/128—Sulfur dyes from other compounds, e.g. other heterocyclic compounds from hydroxy compounds of the benzene or naphthalene series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Description

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

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Darstellung eines ungeheizte Baumwolle direct färbenden graublauen Farbstoffs, darin bestehend, dafs man das Naphtazarinzwischenproduct mit Alkalipolysulfiden erhitzt. Process for the preparation of a gray-blue dye which directly dyes unheated cotton, consisting in heating the naphtazarin intermediate with alkali polysulphides.
DENDAT114266D Active DE114266C (en)

Publications (1)

Publication Number Publication Date
DE114266C true DE114266C (en)

Family

ID=383782

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT114266D Active DE114266C (en)

Country Status (1)

Country Link
DE (1) DE114266C (en)

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