CH155010A - Process for the preparation of an acidic wool azo dye. - Google Patents
Process for the preparation of an acidic wool azo dye.Info
- Publication number
- CH155010A CH155010A CH155010DA CH155010A CH 155010 A CH155010 A CH 155010A CH 155010D A CH155010D A CH 155010DA CH 155010 A CH155010 A CH 155010A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- preparation
- wool
- acidic
- acidic wool
- Prior art date
Links
- 210000002268 wool Anatomy 0.000 title claims description 6
- 230000002378 acidificating effect Effects 0.000 title claims description 4
- 239000000987 azo dye Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000001044 red dye Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FHINQFXPJSRXCK-UHFFFAOYSA-N n-(4-aminophenyl)-n-cyclohexylacetamide Chemical compound C=1C=C(N)C=CC=1N(C(=O)C)C1CCCCC1 FHINQFXPJSRXCK-UHFFFAOYSA-N 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000006193 diazotization reaction Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Verfalu-en zur Iterstellung eines sauren Wollazofarbstoffes. Vorliegendes Patent bezieht sich auf ein Verfahren zurHerstellung eines sauren Woll- azofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von l(N-Acetyl cyclohexylamino)-4-aminobenzolmitl.8-Dioxy- naphthalir)-3. 6-disulfosäure kuppelt.
Der so erhaltene rote Farbstoff kann durch Kochen in 15 %iger Schwefelsäure verseift werden. Er färbt dann Wolle in klaren grün- stichig blauen Tönen an.
<I>Beispiel<B>:</B></I> Zu einer Lösung von<B>23,2 kg 1</B> (N-Acetyl- cyclohexylamino)-4-aminobenzol in etwa<B>100</B> Liter Wasser und 35 <B>kg</B> Salzsäure vom spe zifischen Gewicht<B>1,16</B> gibt man unter Eis kühlung eine konzentrierte wässerige Lösung von<B>6,9 kg</B> Natriumnitrit. Die Diazotierung ist nach kurzer Zeit beendet. Die erhaltene Diazolösung lässt man zu einer mit über schüssigem Natriumacetat versetzten Lösung von<B>33 kg</B> 1.8-Dioxynaphthalin-3.6-disulfo- säure laufen.
Procedure for the production of an acidic wool azo dye. The present patent relates to a process for the preparation of an acidic wool azo dye, characterized in that the diazo compound of 1 (N-acetyl cyclohexylamino) -4-aminobenzene with 8-dioxynaphthalir) -3. 6-disulfonic acid couples.
The red dye obtained in this way can be saponified by boiling in 15% sulfuric acid. He then dyes wool in clear green-tinged blue tones.
<I>Example<B>:</B> </I> To a solution of <B> 23.2 kg 1 </B> (N-acetylcyclohexylamino) -4-aminobenzene in about <B> 100 < / B> liters of water and 35 <B> kg </B> hydrochloric acid with a specific weight of <B> 1.16 </B> are added to a concentrated aqueous solution of <B> 6.9 kg </ B while cooling with ice > Sodium nitrite. The diazotization is over after a short time. The diazo solution obtained is run into a solution of 33 kg of 1,8-dioxynaphthalene-3,6-disulfonic acid to which excess sodium acetate has been added.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE155010X | 1929-08-03 | ||
| CH151678T | 1930-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH155010A true CH155010A (en) | 1932-05-31 |
Family
ID=25715870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH155010D CH155010A (en) | 1929-08-03 | 1930-07-31 | Process for the preparation of an acidic wool azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH155010A (en) |
-
1930
- 1930-07-31 CH CH155010D patent/CH155010A/en unknown
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