DE196989C - - Google Patents
Info
- Publication number
- DE196989C DE196989C DE1907196989D DE196989DA DE196989C DE 196989 C DE196989 C DE 196989C DE 1907196989 D DE1907196989 D DE 1907196989D DE 196989D A DE196989D A DE 196989DA DE 196989 C DE196989 C DE 196989C
- Authority
- DE
- Germany
- Prior art keywords
- dichlorobenzidine
- naphthol
- dye
- disulfonic acid
- formula
- 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.)
- Expired - Lifetime
Links
- 239000002253 acid Substances 0.000 claims description 4
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-Naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 claims 1
- 229950011260 betanaphthol Drugs 0.000 claims 1
- 239000000975 dye Substances 0.000 description 6
- 210000002268 Wool Anatomy 0.000 description 2
- HUWXDEQWWKGHRV-UHFFFAOYSA-N 3,3'-Dichlorobenzidine Chemical compound C1=C(Cl)C(N)=CC=C1C1=CC=C(N)C(Cl)=C1 HUWXDEQWWKGHRV-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 naphthol sulfonic acids Chemical class 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
Description
ansaht in looks in
.ϊ? w^ jv^k.ϊ? w ^ jv ^ k
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
-■ M 196989 KLASSE 22«. GRUPPE- ■ M 196989 CLASS 22 «. GROUP
FARBENFABRIKEN vorm. FRIEDR. BAYER & CO. in ELBERFELD.FARBENFABRIKEN vorm. FRIEDR. BAYER & CO. in ELBERFELD.
Verfahren zur Darstellung eines roten Disazofarbstoffs.Process for the preparation of a red disazo dye.
Patentiert im Deutschen Reiche vom 11. April 1907 ab, Patented in the German Empire on April 11, 1907,
Disazofarbstoffe aus m-Dichlorbenzidin der Formel:Disazo dyes from m-dichlorobenzidine der Formula:
NH,NH,
-NH,-NH,
I
Cl Cl I.
Cl Cl
und Naphtholsulfosäuren sind bisher noch nicht bekannt geworden.and naphthol sulfonic acids are not yet known.
Es wurde nun gefunden, daß die Kombination aus einem Molekül m-Dichlorbenzidin der obigen Formel und zwei Molekülen 2-Naphtol-3 »6-disulfosäure einen sehr wertvollen licht- und walkechten Wollfarbstoff darstellt.It has now been found that the combination of one molecule of m-dichlorobenzidine of the above formula and two molecules of 2-naphthol-3 »6-disulfonic acid make a very valuable one represents lightfast and millfast wool dye.
253 kg Dichlorbenzidin werden tetrazotiert und die Tetrazoverbindung zu einer Lösung von 608 kg 2-Naphtol-3 · 6-disulfosäure in einem Überschuß von Sodalösung zugefügt, ao Die Farbstoffbildung ist nach kurzer Zeit beendet. Der neue Farbstoff wird ausgesalzen, abfiltriert und getrocknet. Er färbt Wolle in saurem Bade in licht- und walkechten roten Tönen an.253 kg of dichlorobenzidine are tetrazotized and the tetrazo compound to form a solution of 608 kg of 2-naphthol-3 · 6-disulfonic acid added in an excess of soda solution, ao The formation of the dye ends after a short time. The new dye is salted out, filtered off and dried. He dyes wool in an acid bath in lightfast and millfast red Tones on.
Claims (1)
Cl Cl I.
Cl Cl
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT35833D AT35833B (en) | 1907-04-10 | 1908-03-14 | Process for the preparation of a red disazo dye. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE196989C true DE196989C (en) |
Family
ID=459914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1907196989D Expired - Lifetime DE196989C (en) | 1907-04-10 | 1907-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE196989C (en) |
-
1907
- 1907-04-10 DE DE1907196989D patent/DE196989C/de not_active Expired - Lifetime
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