EP0019861B1 - Procédé de teinture uniforme de mélanges de fibres cellulosiques et de fibres en polyamide synthétique - Google Patents

Procédé de teinture uniforme de mélanges de fibres cellulosiques et de fibres en polyamide synthétique Download PDF

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Publication number
EP0019861B1
EP0019861B1 EP80102854A EP80102854A EP0019861B1 EP 0019861 B1 EP0019861 B1 EP 0019861B1 EP 80102854 A EP80102854 A EP 80102854A EP 80102854 A EP80102854 A EP 80102854A EP 0019861 B1 EP0019861 B1 EP 0019861B1
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EP
European Patent Office
Prior art keywords
dyeing
minutes
dyestuffs
dyestuff
liquor
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
EP80102854A
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German (de)
English (en)
Other versions
EP0019861A1 (fr
Inventor
Joachim Steinbach
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.)
Hoechst AG
Original Assignee
Hoechst AG
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Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Priority to AT80102854T priority Critical patent/ATE7055T1/de
Publication of EP0019861A1 publication Critical patent/EP0019861A1/fr
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Publication of EP0019861B1 publication Critical patent/EP0019861B1/fr
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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
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8219—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and amide groups

Definitions

  • the present invention relates to a process for the uniform dyeing of textile material from mixtures of cellulose fibers with synthetic polyamide fibers and, if appropriate, elastomer fibers based on polyurethane using the pull-out dyeing technique.
  • the invention is based on the object of developing a simple and, if possible, single-bath process for dyeing mixtures of cellulose fibers and synthetic polyamide fibers with the use of sulfur dyes, with both fiber portions being dyed with a matching shade.
  • textile material made from mixtures of cellulose fibers with synthetic polyamide fibers and, where appropriate, polyurethane-based elastomer fibers can be dyed uniformly using the exhaust dyeing technique by using the fiber mixtures mentioned in an aqueous alkaline dye bath containing reducing agents for 30 to 60 minutes at temperatures of 60 ° to 110 ° C simultaneously treated with sulfur dyes and selected (as defined below) metal complex dyes and / or acid dyes, whereupon the reoxidation of the sulfur dyes applied as a leuco compound is brought about in the usual way.
  • the tone-on-tone dyeings achieved on the basis of the measures according to the invention meet the increased authenticity requirements which are placed on casual clothing.
  • suitable chemicals are the reducing agents which are customarily used in the dyeing of sulfur dyes, such as sodium sulfide or sodium hydrogen sulfide / soda, in each case alone or in a mixture.
  • a supplementary addition of a sodium polysulfide of the formula Na 2 S 2-. to the reducing agents mentioned above proves to be favorable for stabilizing the reduction conditions.
  • glucose / sodium hydroxide solution and, if the sulfur dyes are suitable for dyeing with hydrosulfite, hydrosulfite (sodium dithionite) / alkali can also be used as the reducing agent.
  • the method according to the invention thus enables the fiber mixtures mentioned to be dyed with the required high level of fastness while maintaining all the dyeing advantages, such as single-bath, economical dyeing with little expenditure of time and less waste water.
  • sulfur dyes including leucosulfur dyes and the water-solubilized sulfur dyes listed in the COLOR INDEX as "Solubilized Sulfur Dyes" are suitable as sulfur dyes.
  • the samples are entered into the shared bath at 30 ° C. and are allowed to run for 10 minutes at the set start temperature; the liquor and dyeing samples are then heated to 95.degree. C. in the course of 20 minutes and the dyeing is finally completed at 95.degree. C. in the course of a further 60 minutes. After rinsing and drying, the test color B obtained in this way is compared with the color A ..
  • Suitable for the purposes of the present invention are those metal complex or acid dyes whose test dye B on the synthetic polyamide fiber does not deviate in color with the dye A to be compared and whose color depth does not appear to be more than 10% lighter than dye A.
  • the cotton skein should only be slightly stained. If a dye tested in this way proves to be resistant to the effects of the above chemicals under the test conditions used, then it will be so even with a longer treatment time if it is used in practice.
  • Selected metal complex dyes can also be used in a mixture with the selected acid dyes for the dyeing operation.
  • the process according to the invention can be used to dye mixtures of cellulose fibers and synthetic polyamide fibers in virtually all mixing ratios and processing conditions, e.g. in the form of a thread or in the form of finished woven or knitted piece goods, in the appropriate dyeing machines.
  • the aqueous dyebath which can have a liquor ratio of 1: 2 to 1:50, is initially at about 30 ° C. with the necessary reducing agents and alkaline substances for the reduction of the sulfur dyes, and possibly still other necessary aids (such as wetting agents, leveling aids, etc.).
  • the fiber material to be dyed is introduced into this dye-free liquor and pretreated for 5 to 10 minutes under the given temperature conditions.
  • the dyes already present as liquid brands or the dissolved dyes are added to the bath.
  • the sulfur dyes and the metal complex or acid dyes are dissolved individually and the separately prepared solutions are only brought together in the dyebath.
  • the liquor temperature is then raised to the fixing conditions for the dyes from 60 ° C.
  • the textile material is dyed for 30 to 60 minutes this temperature. About 5 to 10 minutes after the dyeing temperature has been reached, 10 to 30 g / l of sodium chloride are added to the bath.
  • the dyeing liquor is drained off and the textile goods treated in this way are rinsed; then the sulfur dye applied in leuco form is developed according to one of the known methods for oxidation, the dyeing is rinsed again and finally completed.
  • solubilized Sulfur Dyes are used as sulfur dyes to carry out the dyeing operation, then in accordance with the invention a two-stage, but single-bath process, which is therefore still simplified compared to the prior art, can be carried out, in which in the course of the first stage in the presence of acid. Then you neutralize this acidic fleet, which is now the necessary reduction medium and alkaline substances are added, whereupon the coloring is now completed in a reduced, alkaline bath.
  • the dyebath is heated to 95 ° C. in the course of 30 minutes and the goods are first dyed at this temperature for 10 minutes. After adding 20 g / l of sodium chloride, the hot liquor is then allowed to act on the textile material at 95 ° C. for a further 30 minutes. The dye liquor is then drained off and the dyeing is rinsed clear.
  • the liquor After an exposure time of 5 minutes at 30 ° C, the liquor is heated within 20 minutes to 95 ° C and dyes the goods for 5 minutes at this temperature. Then 20 g / l of sodium chloride are added to the bath and the coloration is completed at 95 ° C. over a further 30 minutes. The liquor is then drained off and the fabric is rinsed clear with water.
  • a strong, uniform olive shade is obtained on the cotton and polyamide fibers with very good tone-on-tone coloring of the different types of fibers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Claims (1)

  1. Procédé pour réaliser une teinture bien unie, par la technique d'épuisement, sur une matière textile constituée d'un mélange de fibres cellulosiques et de fibres polyamidiques synthétiques et, éventuellement, de fibres élastomères à base de polyuréthannes, procédé caractérisé en ce qu'on traite ces mélanges de fibres en même temps par des colorants au soufre et des colorants complexes métallisés et/ou des colorants acides sélectionnés à l'aide de l'essai décrit ci-dessous, dans un bain de teinture aqueux alcalin contenant un réducteur, pendant 30 à 60 minutes, à des températures de 60 à 110°C, puis on réoxyde de la manière habituelle les colorants au soufre qui se trouvent sous la forme de leucodérivés, les colorants complexes métallisés et les colorants acides devant répondre aux conditions suivantes:
    des teintures (A) (teintures de comparaison) et (B) (teintures d'essai) réalisées avec le colorant à étudier contenu dans les compositions suivantes:
    A) 2% du colorant,
    3% d'acétate de sodium et
    3% d'acide acétique (à 60%),
    B) 2% du colorant,
    10 cm3/litre d'une solution de NaHS (à 21%),
    5 g/litre de carbonate de sodium calciné et
    10 g/litre de sel de Glauber calciné,

    à chaque fois sur deux écheveaux éprouvettes de même poids constitués, l'un, de 100% de fibres de polyamides synthétiques et, l'autre, de 100% de coton, en bain aqueux, à une longueur de bain de 1:10, teintures pour l'exécution desquelles on introduit les éprouvettes dans le bain, dans les deux cas à 30°C, on traite celles-ci pendant 10 minutes à 30°C, puis on porte la température à 95°C en 20 minutes, on teint à 95°C pendant 60 minutes, après quoi on rince et on sèche, doivent présenter des nuances de même type sur la fibre de polyamide synthétique, tout en donnant sur le coton une' coloration aussi faible que possible, et la clarté de la teinture B ne doit pas dépasser de plus de 10% celle de la teinture A.
EP80102854A 1979-05-30 1980-05-22 Procédé de teinture uniforme de mélanges de fibres cellulosiques et de fibres en polyamide synthétique Expired EP0019861B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80102854T ATE7055T1 (de) 1979-05-30 1980-05-22 Verfahren zum gleichmaessigen faerben von mischungen aus cellulosefasern und synthetischen polyamidfasern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792921950 DE2921950A1 (de) 1979-05-30 1979-05-30 Verfahren zum gleichmaessigen faerben von mischungen aus cellulosefasern und synthetischen polyamidfasern
DE2921950 1979-05-30

Publications (2)

Publication Number Publication Date
EP0019861A1 EP0019861A1 (fr) 1980-12-10
EP0019861B1 true EP0019861B1 (fr) 1984-04-11

Family

ID=6072038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102854A Expired EP0019861B1 (fr) 1979-05-30 1980-05-22 Procédé de teinture uniforme de mélanges de fibres cellulosiques et de fibres en polyamide synthétique

Country Status (3)

Country Link
EP (1) EP0019861B1 (fr)
AT (1) ATE7055T1 (fr)
DE (2) DE2921950A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101481880B (zh) * 2008-07-14 2011-02-02 三元控股集团有限公司 一种怀旧生态棉、麻及其混纺面料的生产方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE601196C (de) * 1927-10-11 1934-08-10 I G Farbenindustrie Akt Ges Verfahren zum Schutze der tierischen Faser bei der Behandlung mit alkalischen Fluessigkeiten
DE1619525A1 (de) * 1967-05-06 1971-03-11 Hoechst Ag Verfahren zum Bedrucken und Faerben von Textilmaterialien mit Leukoschwefelsaeureestern von Kuepenfarbstoffen
US3653801A (en) * 1967-08-29 1972-04-04 Du Pont Pad-acid steam nylon-cotton blend with acid and vat dyes
DE2334014A1 (de) * 1972-07-06 1974-01-24 Sandoz Ag Verfahren zum gleichzeitigen faerben oder bedrucken von mischungen aus textilien
DE2356548A1 (de) * 1973-11-13 1975-06-26 Cassella Farbwerke Mainkur Ag Verfahren zum faerben von polyamidfasern mit schwefelfarbstoffen

Also Published As

Publication number Publication date
ATE7055T1 (de) 1984-04-15
EP0019861A1 (fr) 1980-12-10
DE3067422D1 (en) 1984-05-17
DE2921950A1 (de) 1980-12-11

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