DE241629C - - Google Patents
Info
- Publication number
- DE241629C DE241629C DENDAT241629D DE241629DA DE241629C DE 241629 C DE241629 C DE 241629C DE NDAT241629 D DENDAT241629 D DE NDAT241629D DE 241629D A DE241629D A DE 241629DA DE 241629 C DE241629 C DE 241629C
- Authority
- DE
- Germany
- Prior art keywords
- dye
- disulfonic acid
- dioxy
- molecules
- dyes
- 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
Links
- 239000002253 acid Substances 0.000 claims description 7
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000975 dye Substances 0.000 description 9
- 238000010409 ironing Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 150000008049 diazo compounds Chemical class 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- TYMLOMAKGOJONV-UHFFFAOYSA-N 4-Nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1 TYMLOMAKGOJONV-UHFFFAOYSA-N 0.000 description 1
- 241000295146 Gallionellaceae Species 0.000 description 1
- 239000001045 blue dye Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000001047 purple dye Substances 0.000 description 1
- 239000001044 red dye Substances 0.000 description 1
- 239000001187 sodium carbonate Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
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
- C09B35/02—Disazo dyes
- C09B35/039—Disazo dyes characterised by the tetrazo component
- C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- M 241629 ~™ KLASSE 22 <z. GRUPPE- M 241629 ~ ™ CLASS 22 <e.g. GROUP
Verfahren zur Darstellung eines Disazofarbstoffs. Patentiert im Deutschen Reiche vom 26. November 1910 ab. Process for the preparation of a disazo dye. Patented in the German Empire on November 26, 1910.
In der Patentschrift 114841 ist ein Verfahren zur Darstellung von roten, violetten und blauen, die Baumwolle direkt färbenden Farbstoffen beschrieben, das darin besteht, daß man die 5 · 5'-Dioxy-2 · 2'-dinaphtylamin-7 ■ 7'-disulfosäure mit 1 oder 2 Molekülen einer und derselben Diazoverbindung oder mit 2 Molekülen zweier verschiedener Diazoverbindungen kombiniert. Die so erhältlichen Farbstoffe zeigen den Übelstand, daß die damit hergestellten Färbungen in der Wärme ihre Nuancen verändern, was sich sehr unangenehm beim Bügeln bemerkbar macht.In patent specification 114841 is a method for the representation of red, purple and blue dyes that directly dye cotton, which consists of that the 5 · 5'-dioxy-2 · 2'-dinaphtylamine-7 ■ 7'-disulfonic acid with 1 or 2 molecules of a and the same diazo compound or with 2 molecules of two different diazo compounds combined. The dyes obtainable in this way show the drawback that those produced with them Dyes change their nuances in the heat, which is very uncomfortable when ironing.
Es wurde nun gefunden, daß man unerwarteterweise zu einem sehr klaren Farbstoff von vorzüglicher Bügelechtheit und guter Lichtechtheit gelangt, wenn man 2 Moleküle 5 · 5'-Dioxy-2 · 2'-dinaphtylamin-7 · 7'-disulfosäure mit der Tetrazoverbindung der Benziao din-o · o'-disulfosäure (N H2 — SO3H = 1:2) vereinigt.It has now been found that, unexpectedly, a very clear dye of excellent ironing fastness and good lightfastness is obtained if 2 molecules of 5 · 5'-dioxy-2 · 2'-dinaphthylamine-7 · 7'-disulphonic acid are mixed with the tetrazo compound of Benziao din-o o'-disulfonic acid (NH 2 - SO 3 H = 1: 2) combined.
Der so erhaltene Farbstoff zeichnet sichThe dye thus obtained stands out
ferner dadurch aus, daß er sich auf der Faser mit diazotierten! p-Nitranilin zu waschechten und gut ätzbaren Nuancen entwickeln läßt.also from the fact that it diazotized on the fiber! Washable p-nitroaniline and lets develop easily etchable nuances.
Wenn diese auch durch die Nachbehandlung an Klarheit verlieren, so weisen sie doch vor den nach dem Verfahren der Patentschrift 218255 herstellbaren Färbungen eine erheblich klarere und mehr violette Nuance auf.Even if these lose their clarity due to the follow-up treatment, they still show the dyeings that can be produced by the process of patent specification 218255 are considerably higher clearer and more purple shade.
344 Teile Benzidin-o · o'-disulfosäure werden tetrazotiert und mit 922 Teilen 5 · 5'-Dioxy-2 · 2'-dinaphtylamin-7 · 7'-disulfosäure bei Gegenwart von überschüssigem Natriumcarbonat zum Disazofarbstoff vereinigt. Die Reaktionsmasse wird aufgewärmt, worauf der Farbstoff ausgesalzen wird. Er färbt auf Baumwolle ein klares blaustichiges Violett von guter Bügelechtheit. 344 parts of benzidine-o · o'-disulfonic acid are tetrazotized and with 922 parts of 5 · 5'-dioxy-2 · 2'-dinaphthylamine-7 · 7'-disulfonic acid in the presence of excess sodium carbonate combined to form the disazo dye. The reaction mass is warmed up, whereupon the dye is salted out. It dyes cotton a clear, bluish violet with good ironing fastness.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE241629C true DE241629C (en) |
Family
ID=500914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT241629D Active DE241629C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE241629C (en) |
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0
- DE DENDAT241629D patent/DE241629C/de active Active
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