DE287042C - - Google Patents

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Publication number
DE287042C
DE287042C DENDAT287042D DE287042DA DE287042C DE 287042 C DE287042 C DE 287042C DE NDAT287042 D DENDAT287042 D DE NDAT287042D DE 287042D A DE287042D A DE 287042DA DE 287042 C DE287042 C DE 287042C
Authority
DE
Germany
Prior art keywords
vat
hydrosulfite
alkali
dye
reaction
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.)
Active
Application number
DENDAT287042D
Other languages
German (de)
Publication of DE287042C publication Critical patent/DE287042C/de
Active legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673Inorganic compounds
    • D06P1/67333Salts or hydroxides
    • D06P1/67341Salts or hydroxides of elements different from the alkaline or alkaline-earth metals or with anions containing those elements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/22General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using vat dyestuffs including indigo
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673Inorganic compounds
    • D06P1/67333Salts or hydroxides
    • D06P1/6735Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341

Landscapes

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

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Zusatz zum Patent 283356.Addendum to patent 283356. Es hat sich die technisch sehr wichtige Tatsache herausgestellt, daß manche mit Erdalkali- bzw. Schwermetallhydroxyden und Hydrosulfit schwer verküpbare Küpenfarbstoffe, wie z. B. die Benzoylderivate der Aminoanthrachinone, mit Leichtigkeit verküpt werden, ν wenn man zu der Hydrosulfit und Metallhydroxyd enthaltenden Farbstoffsuspension geringe Mengen eines Alkalis zusetzt. Die Reduktion geht, eventuell unter Erwärmen, schnell vor sich, die Küpe zeigt nach der erfolgten , Reduktion keine alkalische Reaktion mehr, die Leukoverbindung findet sich in der Hauptsache in wasserunlöslicher Form vor und wird von der Faser als solche aufgenommen.The technically very important fact has been found that some vat dyes that are difficult to vat with alkaline earth or heavy metal hydroxides and hydrosulfite, such as. B. the benzoyl derivatives of aminoanthraquinones, can be vat with ease, ν if you add small amounts of an alkali to the hydrosulfite and metal hydroxide-containing dye suspension. The reduction goes, possibly with heating, rapid, the vat is after the successful, reduction No more alkaline reaction, the leuco compound is found mainly in water-insoluble form and is accepted as such by the fiber. Man erzielt so bei manchen Küpenfarbstoffen tiefere Färbungen als bei Anwendung von Metallhydroxyd und Hydrosulfit allein. Infolge der neutralen Reaktion der Küpe ist das Verfahren besonders zum Färben von Wolle und Seide geeignet.With some vat dyes, deeper colors are achieved than with use of metal hydroxide and hydrosulphite alone. As a result of the neutral reaction of the vat the process is particularly suitable for dyeing wool and silk. Der Verlauf der Reaktion ist überraschend, da es zu erwarten war, daß sich zunächst nur ein geringer, der Alkalimenge entsprechender Teil des Farbstoffes beschleunigt verküpen würde, der übrige Teil des Farbstoffes sich aber so verhalten würde wie bei der Verküpung auf Zusatz von Magnesiumhydroxyd allein. Statt dessen erstreckt sich die Verküpung auf Zusatz von diesen geringen Mengen Alkali durch die ganze Masse, was nur auf eine katalytisch verlaufene Reaktion zurückgeführt werden kann.The course of the reaction is surprising, since it was to be expected that initially only a small part of the dye corresponding to the amount of alkali vat accelerated would, but the rest of the dye would behave as it did when vatting on the addition of magnesium hydroxide alone. Instead, the connection extends on the addition of these small amounts of alkali through the whole mass, which can only be traced back to a catalytic reaction can be. Beispiel. ^Example. ^ 250 g i-Benzoylaminoanthrachinonpaste von 20 Prozent werden auf Zusatz von Natronlauge (enthaltend etwa 5 g Natriumhydroxyd), 100 g Magnesiumhydroxyd (in Pastenform gebracht) und 50 bis 100 g Hydrosulfit mit so viel Wasser verdünnt, bis die Gesamtflotte etwa 8 bis 12 1 beträgt. Man geht darauf mit ikg gut genetzter Seide ein und erwärmt das Bad auf etwa 60 bis 70 °. Nach etwa V2 Stunde wird ausgewunden, verhängt, gespült, gesäuert, gespült und geseift.250 g of i-benzoylaminoanthraquinone paste of 20 percent are diluted with enough water to add sodium hydroxide solution (containing about 5 g of sodium hydroxide), 100 g of magnesium hydroxide (made into paste form) and 50 to 100 g of hydrosulfite with enough water until the total liquor is about 8 to 12 liters . You respond to this with ikg well-wetted silk and heat the bath to about 60 to 70 °. After about V 2 hours, it is wound out, draped, rinsed, acidified, rinsed and soaped. Patent-An sfruch:Patent request: Abänderung des Verfahrens des Patents 283356 zum Färben mit Küpenfarbstoffen, dadurch gekennzeichnet, daß der Farbstoff in Gegenwart von Magnesium-, Aluminiumoder Schwer metallhydroxyd, Hydrosulfit und geringen Mengen Alkali aufgefärbt wird.Modification of the process of patent 283356 for dyeing with vat dyes, characterized in that the dye in the presence of magnesium, aluminum or Heavy metal hydroxide, hydrosulfite and small amounts of alkali are colored.
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Publications (1)

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