CH108411A - Process for the preparation of a vat dye. - Google Patents
Process for the preparation of a vat dye.Info
- Publication number
- CH108411A CH108411A CH108411DA CH108411A CH 108411 A CH108411 A CH 108411A CH 108411D A CH108411D A CH 108411DA CH 108411 A CH108411 A CH 108411A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- vat dye
- dye
- violet
- vat
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000000984 vat dye Substances 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 6
- ZYECOAILUNWEAL-NUDFZHEQSA-N (4z)-4-[[2-methoxy-5-(phenylcarbamoyl)phenyl]hydrazinylidene]-n-(3-nitrophenyl)-3-oxonaphthalene-2-carboxamide Chemical compound COC1=CC=C(C(=O)NC=2C=CC=CC=2)C=C1N\N=C(C1=CC=CC=C1C=1)/C(=O)C=1C(=O)NC1=CC=CC([N+]([O-])=O)=C1 ZYECOAILUNWEAL-NUDFZHEQSA-N 0.000 claims description 3
- WSTRYEOEMXCRSG-UHFFFAOYSA-N 1,4-dibromoindole-2,3-dione Chemical compound C1=CC=C(Br)C2=C1N(Br)C(=O)C2=O WSTRYEOEMXCRSG-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 210000002268 wool Anatomy 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
- C09B7/00—Indigoid dyes
- C09B7/06—Indone-thionapthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. <B>106779.</B> Verfahren zur Darstellung eines Köpenfarbstoffes. Es wurde gefunden, dass man einen neuen Küpenfarbstoff erhält, wenn man<B>5.</B> 6-Benzo- 7-chlor-2. 3-diketodihydro-l-thionaplithen mit <B>1</B> Mol. Dibromisatin kondensiert; der so ge wonnene neue Farbstoff bildet ein violettes Pulver.
Er gibt, mit Hydrosulfit und Natron lauge erwärmt, eine braune Küpe, die Baum wolle und Wolle in sehr echten, rotvioletten Tönen anfärbt. Die Kondensation lässt die in der Technik üblichen Verfahren zu.
<I>Beispiel:</I> 240 Gewichtsteile<B>5.</B> 6-Benzo-7-chlor-2.3- diketodihydro-l-thionaphthen und<B>305</B> Ge wichtsteile Dibromisatin werden in Eisessig gelöst, mit etwas konzentrierter Salzsäure versetzt und eine Stunde lang unter Rühren auf<B>100'</B> erhitzt. Der erhaltene Farbstoff wird abgesaugt, gewaschen und getrocknet; er bildet ein violettes Pulver, das aus der braunen Hydrosulfitküpe die Textilfaser in klaren, rotvioletten Tönen von liervorragen- der Echtheit anfärbt.
Additional patent to main patent no. <B> 106779. </B> Process for the preparation of a twill dye. It has been found that a new vat dye is obtained if <B> 5. </B> 6-benzo-7-chloro-2. 3-diketodihydro-1-thionapliths with <B> 1 </B> mol. Dibromoisatin condensed; the new dye obtained in this way forms a purple powder.
He gives a brown vat, warmed up with hydrosulphite and caustic soda, which dyes cotton and wool in very real, red-violet tones. The condensation allows the processes customary in technology.
<I> Example: </I> 240 parts by weight <B> 5. </B> 6-Benzo-7-chloro-2,3-diketodihydro-1-thionaphthene and <B> 305 </B> parts by weight dibromoisatin are in glacial acetic acid dissolved, mixed with a little concentrated hydrochloric acid and heated to <B> 100 '</B> for one hour while stirring. The dye obtained is filtered off with suction, washed and dried; it forms a violet powder which, from the brown hydrosulphite vat, dyes the textile fibers in clear, red-violet shades of excellent fastness.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH106779T | 1923-12-24 | ||
| CH108411T | 1924-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH108411A true CH108411A (en) | 1925-05-01 |
Family
ID=25707064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH108411D CH108411A (en) | 1923-12-24 | 1924-04-01 | Process for the preparation of a vat dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH108411A (en) |
-
1924
- 1924-04-01 CH CH108411D patent/CH108411A/en unknown
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