CH133997A - Process for the preparation of an alkaline cotton dye of the stilbene series. - Google Patents
Process for the preparation of an alkaline cotton dye of the stilbene series.Info
- Publication number
- CH133997A CH133997A CH133997DA CH133997A CH 133997 A CH133997 A CH 133997A CH 133997D A CH133997D A CH 133997DA CH 133997 A CH133997 A CH 133997A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- chs
- sulfonic acid
- alkaline
- Prior art date
Links
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
- C09B56/00—Azo dyes containing other chromophoric systems
- C09B56/04—Stilbene-azo dyes
- C09B56/06—Bis- or polystilbene azo dyes
-
- 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
- C09B56/00—Azo dyes containing other chromophoric systems
- C09B56/04—Stilbene-azo dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung eines alkalieehten Baumwollfarbstoffes der Stilbenreihe. Es wurde gefunden, dass man zu einem alkaliechten Baumwollfarbstoff der Stilben- reihe gelangen kann, wenn man das Produkt welches durch Kondensation des aus p-Nitro- toluol-o-sulfo-säure durch Einwirkung von Natronlauge erhältlichen Farbstoffs, mit Ami- doazotoluolsulfosäure CHs : NH2 : N :
N : CHs SOBH =1 : 2 : 5 : 2' : 1' : 5' gewonnen werden kann, mit einem Oxydationsmittel, beispiels weise Hypohalogenit behandelt.
<I>Beispiel:</I> 50 kg des gelborange färbenden Konden sationsproduktes von Amidoazotoluolsulfosäure CHs :1\THz : N : N : CHs : SOsH = 1:2:5 2':<B>l':
</B> 5' mit dem Einwirkungsprodukt von Natronlauge auf p-Nitrotoluol-o-sulfosäure werden in 500 Liter Wasser gelöst, 100 kg Chlorkalk eingetragen und am Rückfluss ge kocht, bis die Oxydation erfolgt ist, mit Wasser verdünnt, mit Soda gefällt, heiss filtriert und der Farbstoff aus dem Filtrat ausgesalzen. Der Farbstoff stellt ein bräunlich oranges Pulver dar, er löst sich leicht in Wasser mit gelbstichig oranger Farbe, von Schwefel säure wird'-er mit violettroter Farbe aufge nommen.
Er färbt Baumwolle in gelbstichigen Tönen, die sich durch bessere Alkaliechtheit und eine klarere Nuance scharf vom Aus gangsmaterial unterscheiden.
Process for the preparation of an alkaline cotton dye of the stilbene series. It has been found that an alkaline cotton dye of the stilbene series can be obtained if the product, which is obtained by condensation of the dye obtainable from p-nitro-toluene-o-sulfonic acid by the action of sodium hydroxide, with amidoazotoluene sulfonic acid CHs: NH2: N:
N: CHs SOBH = 1: 2: 5: 2 ': 1': 5 'can be obtained, treated with an oxidizing agent, for example, hypohalite.
<I> Example: </I> 50 kg of the yellow-orange condensation product of amidoazotoluene sulfonic acid CHs: 1 \ THz: N: N: CHs: SOsH = 1: 2: 5 2 ': <B> l':
</B> 5 'with the action product of sodium hydroxide on p-nitrotoluene-o-sulfonic acid are dissolved in 500 liters of water, 100 kg of chlorinated lime are added and refluxed until the oxidation has occurred, diluted with water, precipitated with soda filtered hot and the dye salted out from the filtrate. The dye is a brownish-orange powder, it dissolves easily in water with a yellowish orange color, sulfuric acid takes it up with a purple-red color.
It dyes cotton in yellowish tones, which differ sharply from the starting material due to better alkali fastness and a clearer shade.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH133997T | 1928-01-13 | ||
CH125479T | 1929-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH133997A true CH133997A (en) | 1929-06-30 |
Family
ID=25710491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH133997D CH133997A (en) | 1928-01-13 | 1928-01-13 | Process for the preparation of an alkaline cotton dye of the stilbene series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH133997A (en) |
-
1928
- 1928-01-13 CH CH133997D patent/CH133997A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH133997A (en) | Process for the preparation of an alkaline cotton dye of the stilbene series. | |
DE758428C (en) | Process for the preparation of trisazo dyes | |
DE652819C (en) | Process for the preparation of a yellow substantive cotton dye | |
DE515680C (en) | Process for the preparation of pyrazolanthrone-2-carboxylic acid | |
AT61471B (en) | Process for the preparation of β-phenoxylated wool dyes. | |
DE526973C (en) | Process for the preparation of Kuepen dyes | |
CH135951A (en) | Process for the preparation of a new metal-containing polyazo dye. | |
CH141770A (en) | Process for the preparation of an alkaline cotton dye of the stilbene series. | |
CH141766A (en) | Process for the preparation of an alkaline cotton dye of the stilbene series. | |
CH141768A (en) | Process for the preparation of an alkaline cotton dye of the stilbene series. | |
CH155021A (en) | Process for the production of a new azo dye. | |
CH138215A (en) | Process for the production of a new metal-containing dye. | |
CH152143A (en) | Process for the preparation of a wool dye. | |
CH153489A (en) | Process for the preparation of an acidic dye of the anthraquinone series. | |
CH167053A (en) | Process for the production of a metal-containing dye. | |
CH128230A (en) | Process for the preparation of an acid dye of the anthraquinone series. | |
CH185957A (en) | Process for the preparation of a yellow substantive cotton dye. | |
CH143592A (en) | Process for the preparation of a stain-coloring disazo dye. | |
CH142059A (en) | Process for the preparation of a vat dye. | |
CH155025A (en) | Process for the production of a new azo dye. | |
CH185588A (en) | Process for the preparation of an acidic dye of the anthraquinone series. | |
CH143401A (en) | Process for the preparation of a vat dye. | |
CH147339A (en) | Process for the preparation of an alkaline cotton dye of the stilbene series. | |
CH143900A (en) | Process for the preparation of a brown vat dye. | |
CH155024A (en) | Process for the production of a new azo dye. |