CH187605A - Process for the preparation of a chromable yellow azo dye. - Google Patents
Process for the preparation of a chromable yellow azo dye.Info
- Publication number
- CH187605A CH187605A CH187605DA CH187605A CH 187605 A CH187605 A CH 187605A CH 187605D A CH187605D A CH 187605DA CH 187605 A CH187605 A CH 187605A
- Authority
- CH
- Switzerland
- Prior art keywords
- chromable
- azo dye
- yellow
- preparation
- yellow azo
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
- C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
- C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
- C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
- C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
- C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Paper (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 181808. Verfahren zur Herstellung eines ehromierbaren gelben Azofarbstoffes. Gegenstand des vorliegenden Zusatzpa tentes ist ein Verfahren zur Herstellung eines chromierbaren gelben Azofarbstoffes, welches darin besteht, dass man dianotierte ortho- Aminobenzoesäure mit 1 - (4"- Methyl - 4' phenoxy-3'-sulfophenyl)-5-pyrazolon-3-carbon- säureäthylester kuppelt.
<I>Beispiel:</I> 137 Gewichtsteile ortho - Aminobenzoe- säure werden in üblicher Weise dianotiert und mit einer sodaalkalischen Lösung von 418 Gewichtsteilen 1-(4"-Methyl-4'-phenoxy- 3'- sulfophenyl) - 5 - pyrazolon - 3 - carbonsäure- äthylester vereinigt. Nach beendeter Kupp lung wird der Farbstoff abgesaugt und ge trocknet.
Er stellt ein gelbes, in Wasser leicht lösliches Pulver dar, das Wolle in gelben Tönen färbt, die sich nach erfolgter Behand lung mit chromabgebenden Mitteln, wie zum Beispiel Kaliumbichromat und Schwefelsäure, durch gute Echtheitseigenschaften, insbeson dere sehr gute Walkechtheit auszeiobnen.
Additional patent to main patent No. 181808. Process for the production of an honorable yellow azo dye. The subject of the present Zusatzpa tentes is a process for the preparation of a chromable yellow azo dye, which consists in that dianotated ortho-aminobenzoic acid with 1 - (4 "- methyl - 4 'phenoxy-3'-sulfophenyl) -5-pyrazolone-3- carboxylic acid ethyl ester couples.
<I> Example: </I> 137 parts by weight of ortho - aminobenzoic acid are dianotized in the usual way and mixed with a soda-alkaline solution of 418 parts by weight of 1- (4 "-methyl-4'-phenoxy-3'-sulfophenyl) - 5 - pyrazolone-3-carboxylic acid ethyl ester. When the coupling is complete, the dye is filtered off with suction and dried.
It is a yellow powder that is easily soluble in water that dyes wool in yellow tones which, after treatment with chromium-releasing agents such as potassium dichromate and sulfuric acid, show good fastness properties, in particular very good millfastness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH181808T | 1935-01-26 | ||
CH187605T | 1935-01-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH187605A true CH187605A (en) | 1936-11-15 |
Family
ID=25720595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH187605D CH187605A (en) | 1935-01-26 | 1935-01-26 | Process for the preparation of a chromable yellow azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH187605A (en) |
-
1935
- 1935-01-26 CH CH187605D patent/CH187605A/en unknown
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