DE549529C - Process for dyeing animal fibers with water-soluble decoctions (ester salts) from dyes - Google Patents

Process for dyeing animal fibers with water-soluble decoctions (ester salts) from dyes

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Publication number
DE549529C
DE549529C DE1930549529D DE549529DD DE549529C DE 549529 C DE549529 C DE 549529C DE 1930549529 D DE1930549529 D DE 1930549529D DE 549529D D DE549529D D DE 549529DD DE 549529 C DE549529 C DE 549529C
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Germany
Prior art keywords
water
soluble
ester salts
dyes
decoctions
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Expired
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DE1930549529D
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German (de)
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Durand and Huguenin AG
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Durand and Huguenin AG
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Publication of DE549529C publication Critical patent/DE549529C/en
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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
    • D06P1/22General 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
    • D06P1/28Esters of vat dyestuffs

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Description

Verfahren zum Färben von tierischer Faser mit wasserlöslichen Abkömmlingen (Estersalzen) von Küpenfarbstoffen Zusatz zum Patent 540470 In dem Hauptpatent 540 470, Klasse 8m, Gruppe 3, ist ein Verfahren zum Färben von Wolle mit wasserlöslichen esterartigen Abkömmlingen (Estersalzen) von Küpenfarbstoffen unter Verwendung der üblichen Oxydationsmittel, wie beispielsweise Kaliumbichromat, beschrieben, bei dem dem Entwicklungsbade wasserlösliche Rhodansalze zugesetzt werden, wodurch eine Überoxydation des Farbstoffes und ein Angilben der Wolle weitgehend verhindert wird.Process for dyeing animal fiber with water-soluble derivatives (Ester salts) of vat dyes Addition to patent 540470 In main patent 540 470, class 8m, group 3, is a method of dyeing wool with water-soluble ester-like derivatives (ester salts) of vat dyes using the conventional oxidizing agents, such as potassium dichromate, described in the water-soluble rhodan salts are added to the developing bath, whereby a Over-oxidation of the dye and a yellowing of the wool is largely prevented.

In weiterer Ausgestaltung des Erfindungsgedankens wurde nun gefunden, daß man an Stelle der wasserlöslichen Rhodansalze mit ähnlichem Erfolg alle solchen wasserlöslichen Stoffe verwenden kann, deren Oxydationspotential einerseits größer ist als dasjenige der den Estersalzen entsprechenden Küpenfarbstoffe, die also einerseits von den verwendeten Oxydationsmitteln schwerer angreifbar sein müssen als die Estersalze, da sie sonst die Oxydation der Estersalze zum Küpenfarbstoff verhindern würden, während sie andererseits aber leichter oxydierbar sein müssen als der Küpenfarbstoff selbst, da sonst eine Überoxydation des Farbstoffs eintreten würde. Als derartige Puffersubstanzen kbmtnen Stoffe in Frage, wie beispielsweise Thiodiglykol, Thioharnstoff, Dimethylanilinsulfonsäure usw.In a further embodiment of the inventive idea it has now been found that in place of the water-soluble rhodan salts with similar success all such Can use water-soluble substances whose oxidation potential is greater on the one hand is than that of the vat dyes corresponding to the ester salts, that is on the one hand the oxidizing agents used must be more vulnerable to attack than the ester salts, otherwise they would prevent the ester salts from oxidizing to form the vat dye, while on the other hand they must be more easily oxidized than the vat dye itself, as otherwise the dye would over-oxidize. As such Buffer substances can be substances such as thiodiglycol, thiourea, Dimethylaniline sulfonic acid, etc.

Beispiel I a. Färbung. Für roo kg Wollmaterial wird das Färbebad mit o,o7 kg des Natriumsalzes des Dischwefelsäureesters von Leuko-4 : 4'-dimethyl-6 : 6'-dichlorthioindigo und mit 5 kg Atnmonsulfat beschickt. Man beginnt bei 4o° C zu färben, treibt die Temperatur im Verlauf einer halben Stunde zum Kochen und kocht % Stunde. Danach erschöpft man das Bad durch Zusatz von 2 kg Essigsäure 4o °foig und nochmaliges lJ.stündiges Kochen. Zum Schluß wird die Wolle durch Wasserzufluß kurz gespült.Example I a. Coloring. The dye bath is also used for roo kg of wool 0.07 kg of the sodium salt of the disulfuric acid ester of leuco-4: 4'-dimethyl-6 : 6'-dichlorothioindigo and loaded with 5 kg of inhalation sulfate. You start at 40 ° Coloring C drives the temperature to a boil over the course of half an hour and cooks% hour. The bath is then exhausted by adding 2 kg of acetic acid 4o ° foig and boiling again for a year and a half. Finally, the wool is filled with water rinsed briefly.

b. Entwicklung. Man beschickt das 30° C warme Entwicklungsbad mit ro kg Thiodiglykol und i, i kg Kaliumbichromat und behandelt das gefärbte Wollmaterial zunächst Stunde bei der Anfangstemperatur. Nachdem langsam to g Schwefelsäure 96 ° joig pro Flottenliter dem Entwicklungsbad zugesetzt «-orden sind, erwärmt man in einer halben Stunde auf 85 bis go° C, behandelt il, Stunde bei dieser Temperatur, spült, neutralisiert % Stunde mit 2 kg Soda calc. bei 30° C und spült abermals.b. Development. The 30 ° C developing bath is also charged ro kg thiodiglycol and i, i kg potassium dichromate and treats the dyed wool material first hour at the initial temperature. After slowly adding to g sulfuric acid 96 ° jig per liter of liquor added to the developing bath "is warmed up in a half Hour to 85 to go ° C, treated il, hour at this temperature, rinses, neutralized for% hour with 2 kg soda calc. at 30 ° C and rinses again.

Beispiel II a. Färbung. Für ioo kg Wollmaterial wird das Färbebad mit 0,07 kg des Natriumsalzes des Dischwefelsäureesters von Leukolhexabromindigo, 5 kg Ammonsulfat und io kg dimethylanilinparasulfonsaurem Natrium beschickt. Man behandelt .weiter wie unter Beispiel I angegeben.Example II a. Coloring. For 100 kg of wool material, the dyebath is charged with 0.07 kg of the sodium salt of the disulphuric acid ester of leucolhexabromine indigo, 5 kg of ammonium sulphate and 10 kg of sodium dimethylaniline parasulphonate. The treatment continues as indicated under Example I.

b. Entwicklung. Man beschickt das 30° C warme Entwicklungsbad mit o;8 kg Kaliumbichromat und behandelt das gefärbte Wollmaterial zunächst % Stunde bei 30° C. Nachdem langsam io g Schwefelsäure 96 °/oig pro Flottenliter dem Entwicklungsbad zugesetzt worden sind, erwärmt man in einer halben Stunde auf 85 bis go° C, behandelt % Stunde bei dieser Temperatur, spült, neutralisiert % Stunde mit 2 kg Soda calc. bei 3o° C und spült abermals. Die Puffersubstanz kann gegebenenfalls dem Färbebad zugesetzt werden. Beispiel rII Das Färbebad für ioo kg Wollmaterial wird mit folgenden Produkten beschickt: o,og kg des Natriumsalzes des Dischwefelsäureesters von Leukodibenzpyrenchinon, o,o2 kg des Natriumsalzes des Dischwefelsäureesters von Leukohexabromindiga, 5 kg Ammonsulfat und io kg Thioharnstoff. Aufgefärbt und entwickelt wird in der gleichen Weise, wie im Beispiel II angegeben.b. Development. The 30 ° C. developing bath is charged with 0.8 kg of potassium dichromate and the dyed wool material is first treated for an hour at 30 ° C. After slowly adding 100 g of 96 % sulfuric acid per liquor liter to the developing bath, the mixture is heated for half an hour to 85 to go ° C, treated for% hour at this temperature, rinsed, neutralized for% hour with 2 kg soda calc. at 30 ° C and rinse again. The buffer substance can optionally be added to the dyebath. Example rII The dyebath for 100 kg of wool material is charged with the following products: 0.0 kg of the sodium salt of the disulfuric acid ester of leuco-dibenzpyrenquinone, 0.02 kg of the sodium salt of the disulfuric acid ester of leucohexabromine, 5 kg of ammonium sulfate and 10 kg of thiourea. It is colored and developed in the same way as indicated in Example II.

Claims (1)

PATENTANSPRUCH: Weitere Ausbildung des Verfahrens des Hauptpatents 540 47o, Klasse Sm, Gruppe 3, zum Färben von tierischer Faser mit wasserlöslichen esterartigen Abkömmlingen von Küpenfarbstoffen unter Verwendung von Kaliumbichromat oder ähnlichen Oxydationsmitteln, dadurch gekennzeichnet, dah die Entwicklung in Gegenwart von Puffersubstanzen, deren Oxydationspotential größer als das der Estersalze, aber geringer ist als das der entsprechenden Küpenfarbstoffe, durchgeführt wird.PATENT CLAIM: Further development of the process of the main patent 540 47o, class Sm, group 3, for dyeing animal fiber with water-soluble ester-like derivatives of vat dyes using potassium dichromate or similar oxidizing agents, characterized in that the development in Presence of buffer substances whose oxidation potential is greater than that of the ester salts, but is less than that of the corresponding vat dyes.
DE1930549529D 1930-09-23 1930-09-23 Process for dyeing animal fibers with water-soluble decoctions (ester salts) from dyes Expired DE549529C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE549529T 1930-09-23

Publications (1)

Publication Number Publication Date
DE549529C true DE549529C (en) 1932-04-28

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Country Status (1)

Country Link
DE (1) DE549529C (en)

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