DE446539C - Process for dyeing cellulose esters - Google Patents
Process for dyeing cellulose estersInfo
- Publication number
- DE446539C DE446539C DEB114442D DEB0114442D DE446539C DE 446539 C DE446539 C DE 446539C DE B114442 D DEB114442 D DE B114442D DE B0114442 D DEB0114442 D DE B0114442D DE 446539 C DE446539 C DE 446539C
- Authority
- DE
- Germany
- Prior art keywords
- cellulose esters
- dyeing cellulose
- water
- weakly basic
- colored
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
- C09B3/02—Benzathrones
- C09B3/06—Preparation from starting materials already containing the benzanthrone nucleus
- C09B3/10—Amino derivatives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zum Färben von Celluloseestern. Zusatz zum Patent q:28 176. In dem Patent 428 176 ist ein Verfahren zum Färben von Celluloseestern, insbesondere Acetatseide, beschrieben, dadurch gekennzeichnet, daß man diese mit Lösungen von schwach basischen, in Wasser schwer löslichen Nitroarylaminen und deren Derivaten behandelt. Es wurde nun gefunden, daß man Acetatseide ganz allgemein färben kann, wenn man sie mit Lösungen von schwach basischen, in Wasser schwer löslichen, gefärbten organischen Verbindungen behandelt. Dabei seien die in dem britischen Patent 190313 für den gleichen Zweck vorgeschlagenen Aminoazoverbindungen sowie die Aminoanthrachinone und deren Derivate ausdrücklich ausgenommen. Man arbeitet zweckmäßig in der Weise, daß man die gefärbten Verbindungen in Ameisensäure, Türkischrotöl oder einem sonstigen geeigneten Lösungsmittel löst und diese Lösung unter Rühren in eine entsprechende Menge Wasser von 7o bis 8o° eingießt. In dem so erhaltenen klaren Bad wird die Acetatseide umgezogen, bis der gewünschte Farbton erreicht ist.Process for dyeing cellulose esters. Addition to patent q: 28 176. Patent 428 176 describes a process for dyeing cellulose esters, in particular acetate silk, characterized in that they are treated with solutions of weakly basic, sparingly water-soluble nitroarylamines and their derivatives. It has now been found that acetate silk can be generally dyed if it is treated with solutions of weakly basic, colored organic compounds that are sparingly soluble in water. The aminoazo compounds proposed for the same purpose in British Patent 190313 and the aminoanthraquinones and their derivatives are expressly excluded. It is expedient to work in such a way that the colored compounds are dissolved in formic acid, Turkish red oil or another suitable solvent and this solution is poured into an appropriate amount of water at from 70 ° to 80 ° with stirring. In the clear bath thus obtained, the acetate silk is removed until the desired color is achieved.
Beispiel i. Bz-i-Aminobenzanthron wird in der erforderlichen Menge Türkischrotöl in der Wärme gelöst und diese Lösung in die geeignete Menge heißes Wasser von 7o bis 8o° eingegossen. Man erhält eine rote Lösung, aus der Acetatseide rot gefärbt wird. Analog verfährt man bei Verwendung von N-Methyl-4-anilidoanthrapyridon, das ein blaustichiges Rot liefert. Aminoacridon liefert ein fluoreszierendes leuchtendes Gelb, Diaminophenanthrenchinon ein Violett.Example i. Bz-i-aminobenzanthrone is used in the required amount Turkish red oil dissolved in the heat and this solution hot in the appropriate amount Poured in water from 7o to 8o °. A red solution is obtained from the acetate silk is colored red. The procedure is analogous when using N-methyl-4-anilidoanthrapyridone, that delivers a bluish red. Aminoacridone provides a fluorescent glowing one Yellow, diaminophenanthrenequinone a purple.
Beispiel e.Example e.
5, 5'-Diaminoindigo wird in der erforderlichen Menge Ameisensäure (85prozentig) unter Erwärmen gelöst, mit einer geeigneten Menge Wasser von 7o bis 8o° verdünnt und in dem erhaltenen blauen Bad Acetatseide 1/4 bis 1/2 Stunde umgezogen. Man erhält ein sattes Blau von guten Echtheitseigenschaften.5, 5'-diaminoindigo becomes formic acid in the required amount (85 percent) dissolved with warming, with a suitable amount of water from 7o to Diluted 80 ° and pulled acetate silk in the resulting blue bath for 1/4 to 1/2 hour. A deep blue with good fastness properties is obtained.
,Beispiel 3. , Example 3.
Anthrachinon- i-hydroxylamin, wie in Beispiel i gefärbt, gibt ein braunstichiges Rot, Anthrachinon-1, 5-dihydroxylamin ein Rotbraun.Anthraquinone i-hydroxylamine, colored as in Example i, enters brownish red, anthraquinone-1,5-dihydroxylamine a reddish brown.
Beispiel 4.Example 4.
Coeramido,nin (s. Ann.348, 243) nach dem im Beispie12 beschriebenen Verfahren gefärbt, gibt ein Gelb.Coeramido, nin (see Ann. 348, 243) according to the one described in Example12 Procedure colored, gives a yellow.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB114442D DE446539C (en) | 1924-06-11 | 1924-06-11 | Process for dyeing cellulose esters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB114442D DE446539C (en) | 1924-06-11 | 1924-06-11 | Process for dyeing cellulose esters |
Publications (1)
Publication Number | Publication Date |
---|---|
DE446539C true DE446539C (en) | 1927-07-05 |
Family
ID=6993758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB114442D Expired DE446539C (en) | 1924-06-11 | 1924-06-11 | Process for dyeing cellulose esters |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE446539C (en) |
-
1924
- 1924-06-11 DE DEB114442D patent/DE446539C/en not_active Expired
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