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DE702277C - Process for dyeing cellulose fibers and fiber textile fibers with substantive dyes - Google Patents

Process for dyeing cellulose fibers and fiber textile fibers with substantive dyes

Info

Publication number
DE702277C
DE702277C DE1936I0056289 DEI0056289D DE702277C DE 702277 C DE702277 C DE 702277C DE 1936I0056289 DE1936I0056289 DE 1936I0056289 DE I0056289 D DEI0056289 D DE I0056289D DE 702277 C DE702277 C DE 702277C
Authority
DE
Germany
Prior art keywords
fibers
dyeing
cellulose fibers
substantive dyes
wool
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
DE1936I0056289
Other languages
German (de)
Inventor
Richard Haynn
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 DE1936I0056289 priority Critical patent/DE702277C/en
Application granted granted Critical
Publication of DE702277C publication Critical patent/DE702277C/en
Expired legal-status Critical Current

Links

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
    • D06P1/64General 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 using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/642Compounds containing nitrogen
    • D06P1/6421Compounds containing nitrile groups
    • 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
    • D06P1/64General 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 using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/642Compounds containing nitrogen
    • D06P1/649Compounds containing carbonamide, thiocarbonamide or guanyl groups
    • D06P1/6491(Thio)urea or (cyclic) derivatives

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

Description

Verfahren zum Färben von Cellulosefasern und Fasergemischen aus Cellulosefasern und eiweißhaltigen Textilfasern mit Substantiven Farbstoffen Beim Färben von Mischgeweben aus Wolle und Baumwolle sowie Kunstspinnfasern aus Cellulose treten häufig Schwierigkeiten insofern auf, als bei . einer Reihe von Substantiven Farbstoffen beim längeren Färben der Farbton teilweise verändert oder mißfarbig wird. Diese Erscheinung bezeichnet man als Verkochen. Sie ist bisher in ihrem Wesen noch nicht aufgeklärt worden. Jedoch ist bekannt, daß diese Erscheinung bereits beim Färben von pflanzlichen Naturfasern allein auftreten kann, hervorgerufen durch eine Reduktionswirkung der Begleitkörper der Naturfaser, wie Baumwolle. Beim Färben von Mischgeweben aus Wolle und Baumwolle sowie Kunstspinnfasern tritt das Verkochen ,erheblich stärker auf und wird selbst bei Farbstoffen beobachtet, die sich auf pflanzlicher Faser normal verhalten. Es ist anzunehmen, daß es Teile der durch Hydrolyse sich bildenden Abbauprodukte der Wolle selbst sind, welche die schädliche Wirkung ausüben. Versuche, diese Beeinträchtigungen des Farbtones auszuschalten, wurden schon vor längerer Zeit unternommen, indem man versuchte, im sauren Mittel zu arbeiten. Dabei hat sich aber als erheblicher Nachteil herausgestellt, daß der Substantive Farbstoff wesentlich stärker auf die Wolle aufzog und dadurch die Ton-in-T on-Färbung erschwert wurde. -Es wurde nun gefunden, daß das Verkochen durch Zusatz von Harnstoff oder dessen Abkömmlingen oder Salzen dieser Verbindungen oder Körpern, die diese Verbindungen zu bilden vermögen, zu den neutralen Färbebädern verhindert werden kann. Diese Verbindungen üben auch bei alkalischer Reaktion ihre Schutzwirkung aus und besitzen die Eigenschaft, den pH-Wert des Färbebades während des Färbens kaum zu beeinflussen. Nach der vorliegenden Erfindung ist es also möglich, die Bäder neutral anzusetzen. Ein zu starkes Aufziehen der substantiven Farbstoffe auf die Wolle, der Nachteil des Färbens aus saurem Bade, erfolgt dabei nicht. Selbst wenn das Färbebad während des Färbens alkalisch werden sollte, wird die Erscheinung des Verkochens durch. die Wirkung der erfindungsgemäß mit zu vexwendenden Hilfsmittel beseitigt.Process for dyeing cellulose fibers and fiber mixtures made from cellulose fibers and protein-containing textile fibers with nouns Dyes When dyeing blended fabrics From wool and cotton, as well as man-made staple fibers from cellulose, difficulties often arise insofar as at. a number of nouns dyes in prolonged dyeing the hue is partially changed or discolored. This phenomenon denotes one as overcooking. Its essence has not yet been clarified. However it is known that this phenomenon occurs when dyeing natural vegetable fibers can occur alone, caused by a reducing effect of the accompanying bodies the natural fiber, such as cotton. When dyeing blended fabrics made of wool and cotton as well as man-made staple fibers, the overcooking occurs considerably more strongly and becomes itself observed in dyes that behave normally on vegetable fiber. It it can be assumed that there are parts of the degradation products formed by hydrolysis Wool itself is what exerts the harmful effect. Try these impairments Turning off the hue was undertaken a long time ago by tried to work in the acidic medium. However, this has been found to be a significant disadvantage found that the nouns dyed the wool much more strongly and thereby the tone-on-tone staining was made difficult. -It has now been found that boiling through the addition of urea or its derivatives or salts thereof Connections or bodies that are able to form these connections to the neutral ones Dye baths can be prevented. These compounds also exercise in the more alkaline Reaction from their protective effect and have the property, the pH value of the dyebath Hard to influence during dyeing. According to the present invention it is so it is possible to use the baths neutrally. Too strong a wind up of the substantives Dyes on the wool, the disadvantage of dyeing from an acid bath, is not done. Self if the dye bath should become alkaline during dyeing, the appearance will of overcooking. the effect of the auxiliaries to be used according to the invention eliminated.

Die erwähnten Hilfsmittel verhindern nicht nur das Verkochen, sondern wirken gleichzeitig egalisierend und ausgleichend auf die Gemische aus Cellulosefasern und tierischen Fasern und erleichtern so das fasergleiche Färben. Selbst bei langdauerndem Kochen wird ein zu starkes Anfärben der Wolle verhindert. Das Verfahren ist daher mit einem erheblichen technischen Fortschritt verbunden. Die zu verwendenden Hilfsmittel können auch mit Salzen gemischt werden, die üblicherweise beim Färben von Mischgeweben Verwendung finden, wie z. B. Ammonsalzen der Salzsäure und der Schwefelsäure. Dabei lassen sich die Zusätze an diesen Salzen in so geringen Grenzen halten, daß ein stärkeres Anfärben der Wolle und eine Gefährdung der Ton-in-Ton-Färbung nicht zu befürchten ist. Die Wirkung des Harnstoffs und seiner Abkömmlinge wird durch die Mitverwendung der Salze unterstützt, ohne daß sich die bisher bei der alleinigen Verwendung der Salze aufgetretenen Nachteile zeigen. Beispiele i. Man färbt ein Fasergemisch, bestehend aus 7o Gewichtsteilen Wolle und 3o Gewichtsteilen Zellwolle (Viscosekunstspinnfaserl, mit io/o des Azofarbstoffes: 4-Amino-i-oxybenzol-2-carbonsäure -> i-Aminonaphthalin alkalisch ->- 2-Amino-8-oxynaphthalin-6-sulfonsäure (vgl. Patentschrift 62134; unter Zusatz von 300'o kristallisiertem Nutriumsulfat und 5 bis io0'o Harnstoff oder o,5 bis 20:o eines wasserlöslichen Harnstoff-Formaldehyd-V orkondensationsproduktes. Die leicht zum Verkochen neigende Färbung zeigt auch nach mehrstündigem Kochen den normalen Farbton.The aids mentioned not only prevent overcooking, but also have a leveling and balancing effect on the mixtures of cellulose fibers at the same time and animal fibers and thus facilitate fiber-like dyeing. Even for a long time Cooking prevents the wool from staining too much. The procedure is therefore associated with considerable technical progress. The tools to use can also be mixed with salts, which are commonly used when dyeing mixed fabrics Find use, such as. B. ammonium salts of hydrochloric acid and sulfuric acid. Included the additives to these salts can be kept within so small limits that a stronger dyeing of the wool and a risk to the tone-on-tone dyeing are not to be expected is feared. The effect of urea and its derivatives is through the Concomitant use of the salts supports, without the hitherto involved in the sole Use of the salts show disadvantages encountered. Examples i. One colors Fiber mixture consisting of 7o parts by weight of wool and 3o parts by weight of rayon (Viscose synthetic staple fiber, with 100% of the azo dye: 4-amino-i-oxybenzene-2-carboxylic acid -> i-aminonaphthalene alkaline -> - 2-amino-8-oxynaphthalene-6-sulfonic acid (see patent specification 62134; with the addition of 300,000 crystallized nutrientsulphate and 5 to 10,000 urea or 0.5 to 20: o of a water-soluble urea-formaldehyde precondensation product. The color, which tends to overcook, shows even after several hours of boiling normal shade.

2. Ein Wolle-Zellwoll-Gemisch wird mit 2.°,'o des Farbstoffes Nr.566 der Farbstofftabellen von Schultz, 7. Auflage, in der gleichen Weise, wie in Beispiel i angegeben, gefärbt, wobei als Schutzmittel gegen das Verkochen ein Gemisch aus 30/b Harnstoff und i oio Ammoniumacetat zugesetzt wird. Auch diese Färbung bleibt bei längerem Kochen einwandfrei.2. A wool-viscose wool mixture is mixed with 2. °, 'o of the dye No. 566 of the Schultz dye tables, 7th edition, in the same way as in Example i indicated, colored, with a mixture of as a protective agent against overcooking 30 / b urea and i oio ammonium acetate is added. This coloring also remains flawless when cooked for a long time.

3. Man färbt Kreuzspulen aus 7o Gewichtsteilen Wolle und 3o Gewichtsteilen Viscosekunstspinnfaser mit 20,ö des Farbstoffes Nr. 54o der Farbstofftabellen von S c h u 1 t z, 7. Auflage, sowie 51'0 Methylharnstoff, welcher durch Umsetzung von Methylaminsulfat und Kaliumcyanat erhalten wurde, ferner 200/ö kristallisiertem Natriumsulfat. Die zum Verkochen neigende Färbung zeigt auch nach 2stündigem Kochen den normalen Farbton.3. Cheeses made of 7o parts by weight of wool and 3o parts by weight of viscose man-made staple fibers are dyed with 20.0 of the dye no. 54o of the dye tables of S chu 1 tz, 7th edition, and 51'0 methylurea, which was obtained by reacting methylamine sulfate and potassium cyanate, furthermore 200 / ö crystallized sodium sulphate. The color, which tends to overcook, shows the normal color even after boiling for 2 hours.

4. Man färbt gleiche Teile Baumwolle und Wolle mit i o,.'0 des Azofarbstoffes 4-Aminoi-oxybenzol-2-carbonsäure > i-Aminonaphthalin alkalisch-->- 2 -Amino - 8 - oxynaphthalin-6-sulfonsäure unter Zusatz von 300:o kristallisiertem Natriumsulfat, 0,50;ö wasserfreiem Natriumcarbonat und 20/0 eines wasserlöslichen Harnstoff -Formaldehyd-Vorkondensationsproduktes. Die zum Verkochen neigende Färbung zeigt nach i stündigem Kochen den normalen Farbton.4. Equal parts of cotton and wool are dyed with 100% of the azo dye 4-Aminoi-oxybenzene-2-carboxylic acid> i-aminonaphthalene alkaline -> - 2-amino - 8 - oxynaphthalene-6-sulfonic acid with the addition of 300: o crystallized sodium sulfate, 0.50; ö anhydrous sodium carbonate and 20/0 of a water-soluble urea-formaldehyde precondensation product. The color, which tends to overcook, shows the normal color after boiling for 1 hour.

Claims (1)

PATENTANSPRUCH: Verfahren zum Färben von Cellulosefasern und Fasergemischen aus Cellulosefasern und eiweißhaltigen Textilfasern mit substantiven Farbstoffen, dadurch gekennzeichnet, daß man neutrale oder schwach alkalische Färbebäder verwendet, die Harnstoff oder dessen Abkömmlinge oder Salze dieser Verbindungen oder Körper, die diese Verbindungen zu bilden vermögen, enthalten.PATENT CLAIM: Process for dyeing cellulose fibers and fiber mixtures made of cellulose fibers and proteinaceous textile fibers with substantive dyes, characterized in that neutral or weakly alkaline dye baths are used, the urea or its derivatives or salts of these compounds or bodies, capable of forming these compounds.
DE1936I0056289 1936-11-03 1936-11-04 Process for dyeing cellulose fibers and fiber textile fibers with substantive dyes Expired DE702277C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1936I0056289 DE702277C (en) 1936-11-03 1936-11-04 Process for dyeing cellulose fibers and fiber textile fibers with substantive dyes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE206685X 1936-11-03
DE1936I0056289 DE702277C (en) 1936-11-03 1936-11-04 Process for dyeing cellulose fibers and fiber textile fibers with substantive dyes

Publications (1)

Publication Number Publication Date
DE702277C true DE702277C (en) 1941-02-04

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749387C (en) * 1942-07-16 1944-11-28 Dr Herbert Gerstner Process for dyeing fiber mixtures of cellulose fibers and fiber materials of animal origin with neutral dyes
DE933271C (en) * 1952-04-06 1955-09-22 Hoechst Ag Process for the production of real colors
DE963862C (en) * 1953-05-26 1957-05-16 Courtaulds Ltd Process for dyeing textiles
DE1032210B (en) * 1955-07-29 1958-06-19 Courtaulds Ltd Process for dyeing textiles
DE1138734B (en) * 1953-04-16 1962-10-31 Hoechst Ag Process for preventing overcooking when dyeing neutral or weakly acidic fiber mixtures of cellulose fibers and protein-containing textile fibers with substantive dyes in hard water containing magnesium salts

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749387C (en) * 1942-07-16 1944-11-28 Dr Herbert Gerstner Process for dyeing fiber mixtures of cellulose fibers and fiber materials of animal origin with neutral dyes
DE933271C (en) * 1952-04-06 1955-09-22 Hoechst Ag Process for the production of real colors
DE1138734B (en) * 1953-04-16 1962-10-31 Hoechst Ag Process for preventing overcooking when dyeing neutral or weakly acidic fiber mixtures of cellulose fibers and protein-containing textile fibers with substantive dyes in hard water containing magnesium salts
DE963862C (en) * 1953-05-26 1957-05-16 Courtaulds Ltd Process for dyeing textiles
DE1032210B (en) * 1955-07-29 1958-06-19 Courtaulds Ltd Process for dyeing textiles

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