CH285140A - Process for the preparation of a disazo dye. - Google Patents
Process for the preparation of a disazo dye.Info
- Publication number
- CH285140A CH285140A CH285140DA CH285140A CH 285140 A CH285140 A CH 285140A CH 285140D A CH285140D A CH 285140DA CH 285140 A CH285140 A CH 285140A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- parts
- disazo dye
- red
- Prior art date
Links
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title description 2
- 239000000975 dye Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 150000008049 diazo compounds Chemical class 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- -1 aminoazo Chemical group 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000004627 regenerated cellulose Substances 0.000 claims description 2
- 238000009958 sewing Methods 0.000 claims description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000006243 chemical reaction Methods 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
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 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
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
- C09B35/039—Disazo dyes characterised by the tetrazo component
- C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Dioazofarbstoffes. Es wurde gefunden, dass man einen wert vollen Disazolarbstoff erhält, wenn man 1316) der Diazoverbindung aus dem Aminoazofarb- stoff der Zusammensetzung
EMI0001.0008
mit<B>1</B> Mol 2-N-Carbäthoxyamino-5-oxynaphthalin-7-s-Lilfonsäure kuppelt.
<I>Beispiel:</I> <B>39</B> Teile des A.minoazofarbstoffes der Zusammensetzung-
EMI0001.0012
werden in<B>500</B> Teilen Wasser und<B>10</B> Teilen konzentrierter N-'atritinihydro--#,.ydlösung gelöst. Der Löstin-- werden naeheinander bei<B>10"</B> <B>7</B> Teile Natriuninitrit und 40 Teile konzen trierte zugesetzt.
Die entstandene Suspension wird während ein bis zwei Stun den bei 1011 "erührt. Naeh beendigter Diazo- tierung lässt man die Diazoverbindung züi einer Lösun- von <B>31.,1</B> Teilen 2-N-Carbäthoxyamino- 5-ox-,Iii.il)Iiili#iliii-7-sulionsäure und.<B>50</B> Teilen Nati-iiiiii(-itt-1)
oilat in 400 Teilen Wasser flie- lien. He Kupplung zum Disazofarbstoff er- folat sehr raseh;
näeh zweistündigern Rühren <B>M</B> wird der ausgefallene Farbstoff filtriert und hierauf bei<B>90'</B> im Vakuum #,#etroeknet. Er ist ein. rotbraunes Pulver, das sieh in Wasser mit roter Farbe löst und Baumwolle und Fasern aus regenerierter Cellulose in seharlaehroten Tönen färbt, welehe dureh Naehkupfern waseb- und liehteeht werden.
Process for the preparation of a dioazo dye. It has been found that a valuable disazolar material is obtained if 1316) the diazo compound is obtained from the aminoazo dye of the composition
EMI0001.0008
with <B> 1 </B> mol of 2-N-carbethoxyamino-5-oxynaphthalene-7-s-sulfonic acid.
<I> Example: </I> <B> 39 </B> parts of A.minoazo dye of the composition-
EMI0001.0012
are dissolved in <B> 500 </B> parts of water and <B> 10 </B> parts of concentrated N-'atritinihydro- #, yd solution. <B> 10 "</B> <B> 7 </B> parts of sodium nitrite and 40 parts of concentrated sodium are added to the solubilizing agent.
The resulting suspension is stirred for one to two hours at 1011 ". After the diazo reaction has ended, the diazo compound is allowed to add 31.1 parts of 2-N-carbethoxyamino-5-ox to a solution -, Iii.il) Iiili # iliii-7-sulionic acid and. <B> 50 </B> parts of Nati-iiiiii (-itt-1)
Flow oilat in 400 parts of water. He coupling to the disazo dye occurs very rapidly;
After stirring for two hours <B> M </B>, the precipitated dye is filtered and then at <B> 90 '</B> in a vacuum #, # etroeknet. He is a. Red-brown powder, which dissolves in water with a red color and dyes cotton and fibers made of regenerated cellulose in light-red tones, which can be washed and lent by sewing copper.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH285140T | 1950-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH285140A true CH285140A (en) | 1952-08-31 |
Family
ID=4484825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH285140D CH285140A (en) | 1950-07-06 | 1950-07-06 | Process for the preparation of a disazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH285140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2861985A (en) * | 1952-12-24 | 1958-11-25 | Saul & Co | Disazo dyestuffs |
-
1950
- 1950-07-06 CH CH285140D patent/CH285140A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2861985A (en) * | 1952-12-24 | 1958-11-25 | Saul & Co | Disazo dyestuffs |
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