AT60617B - Process for the production of real brown and black tones on wool. - Google Patents

Process for the production of real brown and black tones on wool.

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Publication number
AT60617B
AT60617B AT60617DA AT60617B AT 60617 B AT60617 B AT 60617B AT 60617D A AT60617D A AT 60617DA AT 60617 B AT60617 B AT 60617B
Authority
AT
Austria
Prior art keywords
wool
production
brown
black tones
real
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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 Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT60617B publication Critical patent/AT60617B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von echten braunen und schwarzen Tönen auf Wolle. 



   Es wurde gefunden, dass die Farbstoffe, zu denen man durch   Kombination der Diazo-   verbindungen aus Nitro-2-aminophenolen, ihren Homologen oder Halogenderivaten, mit   -Naphtol   gelangt, sich dadurch auszeichnen, dass sie Wolle in einem   Bade unh r   Zusatz von Chrombeizen in sehr echten braunen bis schwarzen Nuancen anfärben. Es muss als überraschend bezeichnet werden, dass die nach vorliegendem Verfahren erhältichen Färbungen, trotzdem sich die Farbstoffe in saurem Bade kaum lösen,   vollständig   reibecht sind.

   Vor den Farbstoffen aus diazotierten Nitroaminophenolen und Dioxychinolin, Aminonaphtolen, m-Oxydimethylanilin und p-Chlorphenol unterscheiden sich die nach vorliegendem Verfahren benutzten Farbstoffe sowohl durch ihre    wertvolleren   Nuancen als auch durch eine bessere Potting-bzw. Waschechtheit. 



   Beispiel. 
 EMI1.1 
 stoffs :   6-Chloro-4-nitro-2-aminophenol + #225-Naphtol,   oder der entsprechenden Menge des in Pastenform gebrachten Farbstoffs, der Flotte zu, kocht auf und setzt 2 kg   Chromkali   nach, geht mit dem Material bei   zirka G ()   bis   800 C ein, treibt langsam zum Kochen,   kocht annähernd drei Viertelstunden und setzt dann allmählich 2 his 3   t Essigsäure nach. Hierauf   wird noch 1 bis   11/2   Stunden gekocht. Man erhält so eine tiefe dunkelbraune Färbung von vorzüglicher Licht,- Walk- und Reibechtheit. 



   Verwendet man statt obigen Farbstoffs den entsprechenden ans 4-Nitro   2-amino-   phenol oder   Nitroamino-o-kresol,   so wird ein etwas röteres Braun erhalten. Bei Benutzung 
 EMI1.2 
   Nitroamino-p-kresolen   werden schwarze Töne erhalten. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the production of real brown and black tones on wool.



   It has been found that the dyes, which are obtained by combining the diazo compounds from nitro-2-aminophenols, their homologues or halogen derivatives, with -naphtol, are distinguished by the fact that they are added to wool in a bath without the addition of chrome stains color very real brown to black nuances. It must be described as surprising that the dyeings obtained by the present process are completely rubfast, despite the fact that the dyes hardly dissolve in an acid bath.

   The dyes used in the present process differ from the dyes from diazotized nitroaminophenols and dioxyquinoline, aminonaphthols, m-oxydimethylaniline and p-chlorophenol both in their more valuable nuances and in better potting or potting. Washfastness.



   Example.
 EMI1.1
 Substance: 6-chloro-4-nitro-2-aminophenol + # 225-naphtol, or the corresponding amount of the dye made in paste form, add to the liquor, boil and add 2 kg of potassium chromium, goes with the material at about G ( ) to 800 C, slowly boil, boil for approximately three quarters of an hour and then gradually add 2 to 3 tons of acetic acid. It is then cooked for 1 to 11/2 hours. This gives a deep, dark brown coloration of excellent light, boiled and rub fastness.



   If the corresponding 4-nitro-2-aminophenol or nitroamino-o-cresol is used instead of the above dye, a somewhat redder brown is obtained. When in use
 EMI1.2
   Nitroamino-p-cresols are obtained in black tones.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Herstellung \on echten braunen und schwarzen Tönen auf Wolle, dadurch gekennzeichnet, dass man die Farbstoffe aus diazotierten Nitro-2-aminophenolen, deren Homologen oder Halogenderivaten und #225-Naphtol auf Wolle in einem Bale unter Zusatz von Chromboixen ausfärbt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the production of real brown and black shades on wool, characterized in that the dyes from diazotized nitro-2-aminophenols, their homologues or halogen derivatives and # 225-naphthol on wool are dyed in a bale with the addition of chrome boixes. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT60617D 1911-05-18 1912-04-22 Process for the production of real brown and black tones on wool. AT60617B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE60617X 1911-05-18

Publications (1)

Publication Number Publication Date
AT60617B true AT60617B (en) 1913-08-11

Family

ID=5630544

Family Applications (1)

Application Number Title Priority Date Filing Date
AT60617D AT60617B (en) 1911-05-18 1912-04-22 Process for the production of real brown and black tones on wool.

Country Status (1)

Country Link
AT (1) AT60617B (en)

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