CH86681A - Process for the preparation of a chromium-containing acidic dye. - Google Patents
Process for the preparation of a chromium-containing acidic dye.Info
- Publication number
- CH86681A CH86681A CH86681DA CH86681A CH 86681 A CH86681 A CH 86681A CH 86681D A CH86681D A CH 86681DA CH 86681 A CH86681 A CH 86681A
- Authority
- CH
- Switzerland
- Prior art keywords
- chromium
- acid
- dye
- containing acidic
- amido
- Prior art date
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 2
- 229910052804 chromium Inorganic materials 0.000 claims 2
- 239000011651 chromium Substances 0.000 claims 2
- 239000000975 dye Substances 0.000 claims 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000000987 azo dye Substances 0.000 claims 1
- 239000003086 colorant Substances 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 235000011121 sodium hydroxide Nutrition 0.000 claims 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
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/14—Monoazo compounds
- C09B45/16—Monoazo compounds containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines ehronihaltigen sauren Farbstoffs. Es wurde gefunden, dass inan den metall empfindlichen Azofarbstoff aus dianotiertem 5-Nitro-4-chlor-2-amido-l-oxybeiizol und 2 - Aniidonaphtalin - 7 - sulfonsäure durch Be handlung mit chromabgebenden Mitteln in einen chromhaltigen sauren Farbstoff über führen kann, welcher das Chrom in maskierter Bindung enthält, indem dasselbe aus der wässrigen Lösung durch Soda, Natronlauge oder Ammoniak nicht gefällt wird.
Der Farb stoff ist wasserlöslich, säurebeständig, nicht kupferempfindlich und färbt animalische Fasern aus saurem Bade in blaustichig grü nen, walk- und lichtechten Tönen.
Beispiel: 5 Teile Azofarbstoff ans diazotiertein 5-l#Ti- trö-4-chlor-2-amido-l-oxybeiizol und 2-Ami- donaphtalin - 7-sulfonsäure werden finit 200 Tei len Wasser, 7.5 Teilen Chromfluor id (mit einem 36,80jo Ci-E 0a entsprechenden Chrom gehalt) und 10-20 Teilen Glaspulver oder der entsprechenden Menge eines ändern säure bindenden Mittels, wie Natriumacetat,
Amino- niumlaktat und dergleichen, während 24 Stun den unter Rückfluss gekocht. Es scheidet sich die Chromverbindung der Farbsäure als schwer- löslicher Niederschlag aus. Derselbe wird ab filtriert, in kalter verdünnter Natronlauge (ent haltend 1 Teil Na OH) gelöst und mit Essig- säure schwach aizgesäuert. Aus der intensiv grünen Lösung wird der Farbstoff durch Aus sahen abgeschieden, abfiltriert, gepresst und getrocknet.
Process for the preparation of an acidic dye containing Ehroni. It was found that inan the metal-sensitive azo dye from dianotized 5-nitro-4-chloro-2-amido-l-oxybeiizole and 2 - aniidonaphthalene - 7 - sulfonic acid can convert into a chromium-containing acid dye by treatment with chromium donating agents, which contains the chromium in a masked bond, in that it is not precipitated from the aqueous solution by soda, caustic soda or ammonia.
The dye is water-soluble, acid-resistant, not sensitive to copper and dyes animal fibers from acid baths in bluish green, milled and lightfast shades.
Example: 5 parts of azo dye ans diazotized in 5-l # titanium-4-chloro-2-amido-l-oxybeiizole and 2-amidonaphthalene-7-sulfonic acid are finely 200 parts of water, 7.5 parts of chromium fluoride (with a 36,80jo Ci-E 0a corresponding chromium content) and 10-20 parts of glass powder or the corresponding amount of an acid-binding agent such as sodium acetate,
Amino lactate and the like, refluxed for 24 hours. The chromium compound of the color acid separates out as a sparingly soluble precipitate. It is filtered off, dissolved in cold, dilute sodium hydroxide solution (containing 1 part of Na OH) and weakly acidified with acetic acid. The dye is separated out from the intensely green solution, filtered off, pressed and dried.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH86681T | 1917-10-12 | ||
| CH80096T | 1917-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH86681A true CH86681A (en) | 1920-09-16 |
Family
ID=25702622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH86681D CH86681A (en) | 1917-10-12 | 1917-10-12 | Process for the preparation of a chromium-containing acidic dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH86681A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE744303C (en) * | 1940-06-04 | 1944-01-13 | Ig Farbenindustrie Ag | Process for the preparation of chromium-containing o-oxyazo dyes |
-
1917
- 1917-10-12 CH CH86681D patent/CH86681A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE744303C (en) * | 1940-06-04 | 1944-01-13 | Ig Farbenindustrie Ag | Process for the preparation of chromium-containing o-oxyazo dyes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH86681A (en) | Process for the preparation of a chromium-containing acidic dye. | |
| CH86682A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86690A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86692A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86684A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86693A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86689A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86680A (en) | Process for the preparation of a chromium-containing acidic dye. | |
| CH86694A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86685A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86686A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86691A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86688A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86679A (en) | Process for the preparation of a chromium-containing acidic dye. | |
| CH86687A (en) | Process for preparing a chromium-containing acidic dye. | |
| CH86683A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86979A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH87139A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86974A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86976A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH86978A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH203039A (en) | Process for the preparation of an azo dye containing complex bonded copper. | |
| CH86977A (en) | Process for the preparation of an acidic dye containing chromium. | |
| CH105485A (en) | Process for the production of a post-chromable, green triphenylmethane azo dye. | |
| CH204714A (en) | Process for the preparation of an azo dye containing complexed cobalt. |