CH263842A - Process for the production of a chromating dye. - Google Patents
Process for the production of a chromating dye.Info
- Publication number
- CH263842A CH263842A CH263842DA CH263842A CH 263842 A CH263842 A CH 263842A CH 263842D A CH263842D A CH 263842DA CH 263842 A CH263842 A CH 263842A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- benzoylating
- treatment
- takes place
- chromating
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 10
- 238000004532 chromating Methods 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 claims description 2
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 claims description 2
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 2
- -1 Benzoyl halides Chemical class 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- AQIHMSVIAGNIDM-UHFFFAOYSA-N benzoyl bromide Chemical compound BrC(=O)C1=CC=CC=C1 AQIHMSVIAGNIDM-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/18—Preparation of azo dyes from other azo compounds by acylation of hydroxyl group or of mercapto group
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 259822. Verfahren zur Herstellung eines _Chromierungsfarbstoffes. Es wurde gefunden, dass man zu einem wertvollen Chromierungsfarbstoff gelangt, wenn man den Monoazofarbstoff der Formel
EMI0001.0004
bis zum Eintritt eines Benzoylrestes mit benzoylierenden Mitteln behandelt.
Der neue Farbstoff stellt ein dunkle Pulver dar, das sich in heissem Wasser mit roter, in konzentrierter Schwefelsäure mit blauer Farbe löst und Wolle nach dem Ein- badchromierungsverfahren in blauen Tönen färbt.
Der beim vorliegenden Verfahren als Aus gangsstoff dienende llorioazofarbstoff der oben erwähnten Formel kann z. B. durch Ver einigen von diazotierter 1-Amino-2-oxynaph- thalin-4-sulfonsäure mit 1-Oxynaphthalin in natriumhydroxydalkalischem Medium erhal ten werden.
Als benzoylierende Mittel kommen z. B. Benzoyllialogenide wie Benzoylbromid oder vorzugsweise Benzoylehlorid in Betracht. Die Behandlung mit dem benzoylierenden Mittel kann beispielsweise bei leicht erhöhter Tempe ratur und mit Vorteil in wasserfreiem Me dium und in Gegenwart einer tertiären Base, wie z. B. Pyridin, erfolgen. Im letzteren Falle kann der entstandene Farbstoff z. B. aus dem Reaktionsgemisch isoliert werden, indem man .
die Hauptmenge des Pyridins abdestilliert, den Rückstand mit Wasser verdünnt, den Farbstoff durch Zusatz von Natriumchlorid vollständig ausfällt und abfiltriert.
<I>Beispiel:</I> 12,6 Teile Benzoylchlorid werden bei Raumtemperatur unter gutem Rühren in 280 Teile trockenes Pyridin eingetropft und hierauf 40 Teile des pulverisierten und gut getrockneten Farbstoffes eingetragen, den man durch Vereinigen von diazotierter 1-Am.ino-2-oxynaphthalin-4-sulfonsäure mit 1-Oxynaphthalin dargestellt und nach been digter Kupplung durch Ansäuern von der allfälligen Anwesenheit freien Alkalis befreit hat. Man hält die Temperatur des Vereste- rungsgemisehes während 2 Stunden bei 40 bis 45 und destilliert hierauf den grössten Teil des Pyridins im Vakuum ab.
Der Rück stand wird in etwa 400 Teilen Wasser ver rührt, der Parbstoffester nach Zusatz von 20 bis 40 Teilen Natriumchlorid abgenutscht und im Vakuum getrocknet.
<B> Additional patent </B> to main patent no. 259822. Process for the production of a chromium-plating dye. It has been found that a valuable chromating dye is obtained by using the monoazo dye of the formula
EMI0001.0004
treated with benzoylating agents until a benzoyl residue occurs.
The new dye is a dark powder that dissolves in hot water with red, in concentrated sulfuric acid with blue color and colors wool in blue tones using the single-bath chrome plating process.
The in the present process as starting material from the llorioazo dye of the formula mentioned above can, for. B. obtained by ver some of diazotized 1-amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphthalene in an alkaline sodium hydroxide medium.
As benzoylating agents such. B. Benzoyl halides such as benzoyl bromide or preferably benzoyle chloride into consideration. The treatment with the benzoylating agent can temperature, for example, at slightly elevated Tempe and advantageously in anhydrous Me and in the presence of a tertiary base, such as. B. pyridine. In the latter case, the resulting dye can e.g. B. can be isolated from the reaction mixture by.
most of the pyridine is distilled off, the residue is diluted with water, and the dye is completely precipitated by adding sodium chloride and filtered off.
<I> Example: </I> 12.6 parts of benzoyl chloride are added dropwise to 280 parts of dry pyridine at room temperature with thorough stirring, and 40 parts of the pulverized and well-dried dye, which is obtained by combining diazotized 1-amino- 2-oxynaphthalene-4-sulfonic acid represented with 1-oxynaphthalene and freed from the possible presence of free alkali by acidification after finished coupling. The temperature of the esterification mixture is kept at 40 to 45 for 2 hours and most of the pyridine is then distilled off in vacuo.
The residue is stirred in about 400 parts of water, the paraffin ester is filtered off with suction after the addition of 20 to 40 parts of sodium chloride and dried in vacuo.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH263842T | 1946-02-27 | ||
CH259822T | 1947-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH263842A true CH263842A (en) | 1949-09-15 |
Family
ID=25730268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH263842D CH263842A (en) | 1946-02-27 | 1946-02-27 | Process for the production of a chromating dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH263842A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105541674A (en) * | 2016-02-16 | 2016-05-04 | 北京泛博清洁技术研究院有限公司 | Compound and preparing method thereof, and application of compound in dye |
-
1946
- 1946-02-27 CH CH263842D patent/CH263842A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105541674A (en) * | 2016-02-16 | 2016-05-04 | 北京泛博清洁技术研究院有限公司 | Compound and preparing method thereof, and application of compound in dye |
CN105541674B (en) * | 2016-02-16 | 2017-10-24 | 北京泛博清洁技术研究院有限公司 | A kind of compound and preparation method thereof and the application in terms of dyestuff |
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