DE441325C - Process for dyeing cellulose esters - Google Patents

Process for dyeing cellulose esters

Info

Publication number
DE441325C
DE441325C DEF56972D DEF0056972D DE441325C DE 441325 C DE441325 C DE 441325C DE F56972 D DEF56972 D DE F56972D DE F0056972 D DEF0056972 D DE F0056972D DE 441325 C DE441325 C DE 441325C
Authority
DE
Germany
Prior art keywords
cellulose esters
dyeing
acid
dyeing cellulose
acetate silk
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
DEF56972D
Other languages
German (de)
Inventor
Dr Heinz Eichwede
Dr Erich Fischer
Dr C Erich Mueller
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEF56972D priority Critical patent/DE441325C/en
Application granted granted Critical
Publication of DE441325C publication Critical patent/DE441325C/en
Expired legal-status Critical Current

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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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Description

Verfahren zum Färben von Celluloseestern. Bekanntlich läßt sich Acetatseide mit eiper Anzahl solcher saurer Monoazofarbstoffe in kräftigen Farbtönen anfärben, die nur eine Sulfogrtippe im Farbstoffinolekül enthalten.Process for dyeing cellulose esters. It is known that acetate silk can be used dye with a large number of such acidic monoazo dyes in strong shades, which contain only one sulfo group in the dye molecule.

Ein tvpischer Vertreter dieser für das Färben von Acetatseide geeigneten Monoazofarbstoffe ist das Diphenylaminorangre (Orange IV): Sulfanilsäure -> Diphenylamin. Die mit diesem Farbstoff auf Acetatseide hergestellten Färbungen sind jedoch ganz säureunecht. Versuche haben gezeigt, daß auch die Produkte aus substituierter Anilinsulfosäure und Diphenylamin die gleiche schlechte Säureechtheit auf Acetat seide besitzen, was praktisch von großem Nachteil ist, da die Acetatseide zur Erhöhung von Griff und Glanz am Schluß der Färbung init Säure aviviert wird.A typical representative of these monoazo dyes, which are suitable for dyeing acetate silk, is diphenylamino orange (orange IV): sulfanilic acid -> diphenylamine. The dyeings made with this dye on acetate silk are, however, quite acid-resistant. Experiments have shown that the products of substituted anilinesulfonic acid and diphenylamine have the same poor acid fastness on acetate silk, which is practically a great disadvantage, since the acetate silk is treated with acid to increase the feel and shine at the end of the dyeing process.

Es ist min _gefunden worden, daß die Azofarbstoffe, die durch Kupplung einer unsulifierten Diazoverbindung mit Diphenylaminsulf os#auren oder ihren D erivaten entstehen, auf Acetatseide Färbungen von hervorragender Säureechtheit ergeben, die gleichzeitig auch eine vorzügliche Lichtechtheit besitzen. Lediglich die Verschiebung der Sulfogruppe aus der Diazo- in die Kupplungskomponente hat diese überraschende Wirkung zur Folge. Die Anwendung dieser bisher nicht verwandten Farbstoffe bedeutet also für das Färben von Acetatseide einen erheblichen technischen Fortschritt.It has been min _gefunden that the azo dyes, the acids by coupling a diazo compound with unsulifierten Diphenylaminsulf os # or their D erivaten arise, resulting on acetate silk dyeings of excellent fastness acid, which also have an excellent light fastness simultaneously. Only the shift of the sulfo group from the diazo to the coupling component has this surprising effect. The use of these hitherto unrelated dyes means a considerable technical advance for the dyeing of acetate silk.

B eispi el.Example.

i kg Acetatseide wird in einem Färbebade von 2o bis 25 1, in dem 2o g des Farbstoffes aus 3-Nitro-i-diazobenzol und Diphenylaminsulfosäure gelöst sind, mit oder ohne Zusatz von Salzen oder Sätiren oder Schutzkolloiden % bis i Stunde bei 6o bis 70' C gefärbt. Man erhält auf der Faser ein kräftiges-, säureechtes Goldgelb.i kg acetate rayon is in a Färbebade from 2o to 25 1, in the 2o g of the dye of 3-nitro-i-diazobenzene and Diphenylaminsulfosäure are dissolved, with or without addition of salts or Sätiren or protective colloids% to i hour at 6o to 70 'C colored. A strong, acid-fast golden yellow is obtained on the fiber.

Ersetzt man- das in-Nitranilin z. B. durch o- oder p-Nitranilin, Nitrotoluidine, Nitroanisidine, Chlornitraniline oder Dinitraniline und ähnliche Basen" so erhält man ebenfalls kräftige goldgelbe bis rote Färbungen von sehr guter Säureechtheit.If you replace the in-nitroaniline z. B. by o- or p-nitroaniline, nitrotoluidines, Nitroanisidine, Chlornitraniline or Dinitraniline and similar bases "is obtained in this way there are also strong golden yellow to red dyeings of very good acid fastness.

Claims (1)

PATENTANSPRUCH: Verfahren zum Färben von Celluloseestern, dadurch gekennzeichnet, daß man zum Färben Monoazofarbstoffe aus einer unstilfierten Diazoverbindung der Benzol-oder Naphthaliuxeihe, gekuppelt mit Diphenylaini=onosulfosäuren oder ihren Derivaten verwendet. Claim: a process for dyeing cellulose esters, characterized in that monoazo dyes made from an unstyled diazo compound of the benzene or naphthalene series, coupled with diphenylaini = onosulfonic acids or their derivatives are used for dyeing.
DEF56972D 1924-09-28 1924-09-28 Process for dyeing cellulose esters Expired DE441325C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF56972D DE441325C (en) 1924-09-28 1924-09-28 Process for dyeing cellulose esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF56972D DE441325C (en) 1924-09-28 1924-09-28 Process for dyeing cellulose esters

Publications (1)

Publication Number Publication Date
DE441325C true DE441325C (en) 1927-02-26

Family

ID=7108126

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF56972D Expired DE441325C (en) 1924-09-28 1924-09-28 Process for dyeing cellulose esters

Country Status (1)

Country Link
DE (1) DE441325C (en)

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