DE420017C - Process for dyeing cellulose esters - Google Patents

Process for dyeing cellulose esters

Info

Publication number
DE420017C
DE420017C DEB109942D DEB0109942D DE420017C DE 420017 C DE420017 C DE 420017C DE B109942 D DEB109942 D DE B109942D DE B0109942 D DEB0109942 D DE B0109942D DE 420017 C DE420017 C DE 420017C
Authority
DE
Germany
Prior art keywords
cellulose esters
dyeing cellulose
dyeing
dyes
chromogens
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
Application number
DEB109942D
Other languages
German (de)
Inventor
Dr Fritz Guenther
Dr Fritz Lange
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Priority to DEB109942D priority Critical patent/DE420017C/en
Application granted granted Critical
Publication of DE420017C publication Critical patent/DE420017C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Power Engineering (AREA)
  • Coloring (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

Verfahren zum Färben von Celluloseestern. Es wurde gefunden, daß sich zum Färben von Celluloseestern die wasserlöslichen Sulfaminsäuren von Farbstoffen, die den Sulfaminsäurerest (-NH -SO, H) einmal oder mehrfach im Molekül enthalten, in ausgezeichneter Weise eignen. Das Färben kann in der üblichen Weise erfolgen, ohne daß eine Vorbehandlung der Faser, wie teilweise Verseifung usw., erforderlich ist.Process for dyeing cellulose esters. It has been found that the water-soluble sulfamic acids of dyes which contain the sulfamic acid radical (—NH — SO, H) one or more times in the molecule are extremely suitable for dyeing cellulose esters. The dyeing can be carried out in the usual manner without any pretreatment of the fiber, such as partial saponification, etc., being necessary.

Es hat sich weiter gezeigt, daß sich aus den so erzeugten Färbungen in vielen Fällen durch nachträgliche Diazotierung und darauffolgende Entwicklung mit Chromogenen oder auch durch Behandlung mit Diazoverbindungen neue Färbungen mannigfacher Art erzeugen lassen.It has also been shown that the colorations produced in this way in many cases by subsequent diazotization and subsequent development new colorations with chromogens or by treatment with diazo compounds can be produced in a variety of ways.

B e i s pi el.Example.

Gut genetzte Acetylcelluloseseide wird bei 7o bis 75' mit dem Azofarbstoff aus p-Aminophenylsulfarninsäure und ß-Naphthol in möglichst konzentrierter Flotte, zweckmäßig bei Gegenwart von Säuren oder sauer reagierenden Salzen, wie Essigsäure oder Bisulfat, gefärbt. Man erhält auf diese Weise eine Färbung von bräunlichrotem Tone, die durch nachträgliches Diazotieren und Entwickeln, z. B. mit ß-Naphthol, ein rötliches Violett ergibt.Well-wetted acetylcellulose silk is dyed at 70 to 75 ' with the azo dye from p-aminophenylsulfarninic acid and ß-naphthol in a liquor that is as concentrated as possible, expediently in the presence of acids or acidic salts such as acetic acid or bisulfate. In this way, a coloration of brownish-red clays is obtained, which is obtained by subsequent diazotization and development, e.g. B. with ß-naphthol, a reddish purple results.

In ähnlicher Weise verfährt man bei Verwendung anderer Farbstoffe der bezeichneten Art.The procedure is similar when using other dyes of the art.

Claims (1)

PATENT-ANSPRUCH: Verfahren zum Färben von Celluloseestern, dadurch gekennzeichnet, daß man sie mit wasserlöslichen Sulfaminsäuren von Farbstoffen färbt und die erhaltenen Färbungen gegebenenfalls nachträglich diazotiert und darauf mit Chromogenen entwickelt oder sie mit Diazoverbindungen nachbehandelt.PATENT CLAIM: Process for dyeing cellulose esters, thereby characterized in that they are dyed with water-soluble sulfamic acids of dyes and the dyeings obtained are optionally subsequently diazotized and then with Chromogens developed or post-treated with diazo compounds.
DEB109942D 1923-06-12 1923-06-12 Process for dyeing cellulose esters Expired DE420017C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB109942D DE420017C (en) 1923-06-12 1923-06-12 Process for dyeing cellulose esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB109942D DE420017C (en) 1923-06-12 1923-06-12 Process for dyeing cellulose esters

Publications (1)

Publication Number Publication Date
DE420017C true DE420017C (en) 1925-10-15

Family

ID=6992599

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB109942D Expired DE420017C (en) 1923-06-12 1923-06-12 Process for dyeing cellulose esters

Country Status (1)

Country Link
DE (1) DE420017C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5824412A (en) * 1991-10-24 1998-10-20 E. I. Du Pont De Nemours And Company Thermoplastic polybutylene terephthalate compositions for wire coating applications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5824412A (en) * 1991-10-24 1998-10-20 E. I. Du Pont De Nemours And Company Thermoplastic polybutylene terephthalate compositions for wire coating applications

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