CH151165A - Process for the preparation of a wool dye. - Google Patents

Process for the preparation of a wool dye.

Info

Publication number
CH151165A
CH151165A CH151165DA CH151165A CH 151165 A CH151165 A CH 151165A CH 151165D A CH151165D A CH 151165DA CH 151165 A CH151165 A CH 151165A
Authority
CH
Switzerland
Prior art keywords
preparation
parts
dye
wool
wool dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH151165A publication Critical patent/CH151165A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable

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  • Coloring (AREA)

Description

  

  Verfahren zur     Darstellung        eines    Wollfarbstoffes.    Wie gefunden     wurde,    gelangt man zu  einem neuen wertvollen Farbstoff, der     urolle     in     rötlichbraunen,    gut egalisierenden Tönen  von sehr guter Lichtechtheit färbt, wenn  man 1     Mol.        4'-Methoxy-2.6-diaminodiphe-          nylamin-4-sulfosäure    mit einem     Mol.    2. 4.     6-          Trinitro-l-chlorbenzol    kondensiert.

   Hierbei  findet zunächst die zu erwartende Reaktion  zwischen dem Chloratom und einer     Amino-          gruppe    statt, bei weiterem Erhitzen in  Gegenwart von Alkali tritt dann aber unter       Abspaltung    von     Alkalinitrit        eine    innere  Kondensation ein.  



  <I>Beispiel:</I>  30,9 Teile     4'-Methoxy-.2.        6-diaminodiphe-          rylamin-4-sulfosäure,    erhalten durch Kon  densation von 2. 6 -     Dinitrochlorbenzol    - 4     -          sulfosäure    mit     p-Anisidin    und folgende Re  duktion der Nitrogruppen, werden in 500  Teilen Wasser neutral gelöst und bei 70 bis  80   mit 24 Teilen 2 . 4.     6-Trinitrochlorben-          zol,    welches man allmählich unter Rühren    zugibt, kondensiert.

   Gleichzeitig lässt man  eine Lösung von 11 Teilen Natriumkarbonat  in 110 Teilen Wasser     zutropfen.    Nachdem  alles     Trinitrochlorbenzol    umgesetzt ist, gibt  man noch 6 Teile Natriumkarbonat hinzu  und erhitzt eine Stunde auf 90  . Der Farb  stoff wird durch     Aussalzen    abgeschieden und  getrocknet. Er bildet ein schwarzes Pulver.



  Process for the preparation of a wool dye. As has been found, one arrives at a new valuable dye which dyes urolle in reddish-brown, well-leveling shades of very good lightfastness, if 1 mole of 4'-methoxy-2,6-diaminodiphenylamine-4-sulfonic acid is used with one mole of 2 4. 6-trinitro-1-chlorobenzene condensed.

   The reaction to be expected between the chlorine atom and an amino group takes place first of all, but with further heating in the presence of alkali, an internal condensation then occurs with elimination of alkali metal nitrite.



  <I> Example: </I> 30.9 parts of 4'-methoxy-.2. 6-diaminodipherylamine-4-sulfonic acid, obtained by condensation of 2.6-dinitrochlorobenzene-4-sulfonic acid with p-anisidine and subsequent reduction of the nitro groups, are dissolved neutrally in 500 parts of water and at 70 to 80 with 24 parts 2. 4. 6-trinitrochlorobenzene, which is gradually added with stirring, condenses.

   At the same time, a solution of 11 parts of sodium carbonate in 110 parts of water is added dropwise. After all the trinitrochlorobenzene has reacted, 6 parts of sodium carbonate are added and the mixture is heated to 90 for one hour. The dye is deposited by salting out and dried. It forms a black powder.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Wolle in rötlichbraunen, gut egalisierenden und sehr lichtechten Tönen färbenden Farb-- Stoffes, dadurch gekennzeichnet, dass man auf 1 Mol. 4'- Methoxy - 2. 6 - diaminodiphenyl- amin-4-sulfosäure 1 Mol. 2.4. 6-Trinitro-l- chlorbenzol einwirken lässt und das zunächst gebildete Kondensationsprodukt in Gegen wart von Alkali erhitzt. PATENT CLAIM: Process for the representation of a wool in reddish-brown, well-leveling and very lightfast coloring shades, characterized in that 1 mol. Of 4'-methoxy-2.6-diaminodiphenylamine-4-sulfonic acid is used for 1 mol. 2.4. 6-trinitro-1-chlorobenzene is allowed to act and the condensation product initially formed is heated in the presence of alkali.
CH151165D 1929-08-17 1930-03-12 Process for the preparation of a wool dye. CH151165A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE151165X 1929-08-17
CH147460T 1931-06-15

Publications (1)

Publication Number Publication Date
CH151165A true CH151165A (en) 1931-11-30

Family

ID=25715033

Family Applications (1)

Application Number Title Priority Date Filing Date
CH151165D CH151165A (en) 1929-08-17 1930-03-12 Process for the preparation of a wool dye.

Country Status (1)

Country Link
CH (1) CH151165A (en)

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