CH232048A - Process for the preparation of a disazo dye. - Google Patents
Process for the preparation of a disazo dye.Info
- Publication number
- CH232048A CH232048A CH232048DA CH232048A CH 232048 A CH232048 A CH 232048A CH 232048D A CH232048D A CH 232048DA CH 232048 A CH232048 A CH 232048A
- Authority
- CH
- Switzerland
- Prior art keywords
- red
- preparation
- disazo dye
- dissolves
- dye
- Prior art date
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
- C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
- C09B33/02—Disazo dyes
- C09B33/12—Disazo dyes in which the coupling component is a heterocyclic compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Photoreceptors In Electrophotography (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 230074. Verfahren zur Herstellung eines Disazofarbstoffes. Gegenstand vorliegender Erfindung ist ein Verfahren zur Herstellung eines Disazo- farbstoffes. Das Verfahren ist dadurch ge- kennzeichnet, dass man 2 Mol 1-Amino-4- nitrobenzo:l-2-sulfonsäure dianotiert 'und mit i 1 Mol des Diiminfo,dipyrazols des 4,4'-Di- amino,3,3'-dimethyldip:
henyl-s der Formel
EMI0001.0013
kuppelt. Der neue Farbstoff stellt ein rotes Pul ver Üar, das sieh in Wasser mit rotgelber Farbe löst und Wolle in roten Tönen färbt. Beispiel: 2 Mo:l 1-Amino:-4-nitro@b@enzo1-2-sulfonsäure werden in bekannter Weise dianotiert und mit 1 Mol des Diiminoidipyrazols des 4,4-Di a.mino"3,3'-dimethyldip:henyls der Formel
EMI0001.0026
gekuppelt und abgesaugt.
Nach .dem Trock- nen erhält man ein rotes Pulver, das sich in Wasser mit rotgelber Farbe löst und Wolle rot anfärbt. Die Färbung hat. bute Echt.lieits- eigensehaften.
Additional patent to main patent No. 230074. Process for the production of a disazo dye. The present invention relates to a process for the preparation of a disazo dye. The process is characterized in that 2 moles of 1-amino-4-nitrobenzo: l-2-sulfonic acid are dianotated and 1 mole of diiminfo, dipyrazole of 4,4'-di-amino, 3,3 ' -dimethyldip:
henyl-s of the formula
EMI0001.0013
clutch. The new dye is a red powder that dissolves in water with a red-yellow color and dyes wool in red tones. Example: 2 Mo: l 1-Amino: -4-nitro @ b @ enzo1-2-sulfonic acid are dianotized in a known manner and treated with 1 mol of the diiminoidipyrazole of 4,4-Di a.mino "3,3'-dimethyldip: henyls the formula
EMI0001.0026
coupled and extracted.
After drying, a red powder is obtained that dissolves in water with a red-yellow color and dyes wool red. The coloring has. bute Echt.lieits- proprietary.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE232048X | 1941-09-13 | ||
CH230074T | 1942-08-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH232048A true CH232048A (en) | 1944-04-30 |
Family
ID=25727440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH232048D CH232048A (en) | 1941-09-13 | 1942-08-19 | Process for the preparation of a disazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH232048A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3197455A (en) * | 1961-12-15 | 1965-07-27 | Geigy Ag J R | Disazo dyestuffs |
-
1942
- 1942-08-19 CH CH232048D patent/CH232048A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3197455A (en) * | 1961-12-15 | 1965-07-27 | Geigy Ag J R | Disazo dyestuffs |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH232048A (en) | Process for the preparation of a disazo dye. | |
CH232045A (en) | Process for the preparation of a disazo dye. | |
CH169244A (en) | Process for the production of a new azo dye. | |
CH167173A (en) | Process for the production of a new azo dye. | |
CH211855A (en) | Process for the preparation of a triphenylmethane dye. | |
CH221207A (en) | Process for the preparation of a mordant dye of the dioxazine series. | |
CH179333A (en) | Process for the production of a new azo dye. | |
CH174902A (en) | Process for the production of a new vat dye. | |
CH216119A (en) | Process for the preparation of an azo dye. | |
CH179676A (en) | Process for the preparation of a monoazo dye. | |
CH280064A (en) | Process for the preparation of a nitro dye. | |
CH198322A (en) | Process for the production of a new azo dye. | |
CH137637A (en) | Process for the production of a new metal-containing dye. | |
CH177837A (en) | Process for the production of a new azo dye. | |
CH200286A (en) | Process for the preparation of an acidic dye. | |
CH145833A (en) | Process for the production of a new azo dye. | |
CH202171A (en) | Process for the preparation of a nitro dye. | |
CH202747A (en) | Process for the preparation of an azo dye. | |
CH202169A (en) | Process for the preparation of a nitro dye. | |
CH200259A (en) | Process for the preparation of a leukotriarylmethane dye. | |
CH155019A (en) | Process for the production of a new azo dye. | |
CH202746A (en) | Process for the preparation of an azo dye. | |
CH129480A (en) | Process for the production of a new azo dye. | |
CH228827A (en) | Process for the preparation of a dye of the stilbene series. | |
CH226839A (en) | Process for the preparation of an azo dye. |