AT29147B - Process for the preparation of stain-coloring o-oxyazo dyes. - Google Patents
Process for the preparation of stain-coloring o-oxyazo dyes.Info
- Publication number
- AT29147B AT29147B AT29147DA AT29147B AT 29147 B AT29147 B AT 29147B AT 29147D A AT29147D A AT 29147DA AT 29147 B AT29147 B AT 29147B
- Authority
- AT
- Austria
- Prior art keywords
- stain
- coloring
- preparation
- dyes
- oxyazo
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 239000000975 dye Substances 0.000 title description 6
- 238000004040 coloring Methods 0.000 title description 2
- 238000002360 preparation method Methods 0.000 title description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 238000006467 substitution reaction Methods 0.000 claims 1
- 150000003460 sulfonic acids Chemical class 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 101100243951 Caenorhabditis elegans pie-1 gene Proteins 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Heat Sensitive Colour Forming Recording (AREA)
- Paper (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung beizenfÅarbender o-Oxyazofarbstoff'e.
Die weitere Ausbildung des in dem Stamm-Patente Nr. 28991 und dem ersten ZusatzPatente Nr. 29066 beschriebenen Verfahrens hat ergeben, dass die Amidogruppe, welche,
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geführt wurde, in den Kern der o-Oxydiazoverbindung als Substituent noch die Sulfogruppe eingetreten sein.
Beis pie 1 : 18 -Azetyl-methylamido-o-amidophenol werden in salzsaurer Lösung diazotiert. Die erhaltene Lösung der Diazoverbindung lässt man einlaufen in eine mit Soda- überschuss versetzte Lösung von 26 kg 1. 4-Naphtolsulfosäure. Man lässt rühren, bis die Farbstoffbildung vollendet ist und filtriert den ausgesalzene Farbstoff ab ; zur Abspaltung der
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die beim Nachbchandeln mit Chrombeizen in ein echtes tiefes Schwarz übergehen.
B e i s p i e l 2: 28 kg des Natriumsalzes der p-Azetyl-methylamido-o-amidophenol-o-sulfo- säure werden auf Zusatz von Nitrit und Salzsäure diazotiert. Die Lösung der erhaltenen Diazo-
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Der auf diese Weise erhaltene Farbstoff färbt Wolle in saurem Bade in bordeauxroten Tönen, welche durch Nachbehandlung mit Chrombeizen in ein echtes Blauschwarz übergehen.
<Desc / Clms Page number 1>
Process for the preparation of stain-coloring o-oxyazo dyes.
The further development of the process described in the parent patent No. 28991 and the first additional patent No. 29066 has shown that the amido group, which,
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led, in the nucleus of the o-oxydiazo compound as a substituent or the sulfo group have entered.
Beis pie 1:18 acetylmethylamido-o-amidophenol are diazotized in hydrochloric acid solution. The resulting solution of the diazo compound is allowed to run into a solution of 26 kg of 1,4-naphthol sulfonic acid to which excess soda is added. The mixture is stirred until the formation of the dye is complete and the salted-out dye is filtered off; to split off the
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which turn into a real deep black when re-staining with chrome stains.
For example 2: 28 kg of the sodium salt of p-acetylmethylamido-o-amidophenol-o-sulfonic acid are diazotized with the addition of nitrite and hydrochloric acid. The solution of the obtained diazo
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The dye obtained in this way dyes wool in an acid bath in burgundy-red tones, which turn into a true blue-black after treatment with chrome stains.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1903172732D DE172732C (en) | 1903-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT29147B true AT29147B (en) | 1907-07-10 |
Family
ID=5690208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT29147D AT29147B (en) | 1903-05-25 | 1906-05-14 | Process for the preparation of stain-coloring o-oxyazo dyes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT29147B (en) |
-
1906
- 1906-05-14 AT AT29147D patent/AT29147B/en active
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