EP0014852B1 - Procédé de teinture en continu ou en semi-continu de mélanges de fibres cellulosiques et de fibres de polyamides synthétiques avec des colorants azoiques produits sur la fibre - Google Patents

Procédé de teinture en continu ou en semi-continu de mélanges de fibres cellulosiques et de fibres de polyamides synthétiques avec des colorants azoiques produits sur la fibre Download PDF

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Publication number
EP0014852B1
EP0014852B1 EP80100348A EP80100348A EP0014852B1 EP 0014852 B1 EP0014852 B1 EP 0014852B1 EP 80100348 A EP80100348 A EP 80100348A EP 80100348 A EP80100348 A EP 80100348A EP 0014852 B1 EP0014852 B1 EP 0014852B1
Authority
EP
European Patent Office
Prior art keywords
continuous
dyeing
steamed
padding
textile goods
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
EP80100348A
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German (de)
English (en)
Other versions
EP0014852A1 (fr
Inventor
Peter Heinisch
Hans Hofstetter
Adolf Trampusch
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
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 Hoechst AG filed Critical Hoechst AG
Priority to AT80100348T priority Critical patent/ATE930T1/de
Publication of EP0014852A1 publication Critical patent/EP0014852A1/fr
Application granted granted Critical
Publication of EP0014852B1 publication Critical patent/EP0014852B1/fr
Expired legal-status Critical Current

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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
    • 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
    • D06P1/00—General 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
    • D06P1/02—General 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 azo dyes
    • D06P1/12—General 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 azo dyes prepared in situ
    • D06P1/127—General 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 azo dyes prepared in situ using a stabilised diazo component, e.g. diazoamino, anti-diazotate or nitrosamine R-N=N-OK, diazosulfonate, hydrazinesulfonate, R-N=N-N-CN

Definitions

  • the present invention relates to a process for the continuous or semi-continuous, single-bath, uniform tone-on-tone dyeing of textile fabrics or knitted fabrics from mixtures of cellulose fibers and synthetic polyamide fibers by a block dyeing technique with a coupling component and a diazo component in the form of a stabilized diazonium compound Insoluble azo dyes produced on the fiber by the dye components being applied together under alkaline conditions and the dye development being brought about by the action of acid.
  • a one-bath process for the production of water-insoluble azo dyes on cellulose fibers occupies a special position in which, in addition to a coupling component (hereinafter referred to as «naphthol»), one in the form of a one stabilized by reaction of the diazotized amine with cyanamide and therefore not easily coupling-capable diazonium compound (hereinafter referred to briefly as “diazo salt”) is padded onto the goods and the coupling-capable diazonium compound is subsequently released again by an acid treatment and brought to coupling with the “naphthol.
  • diazo salt not easily coupling-capable diazonium compound
  • the dyeing of synthetic polyamide fibers with developing dyes is also known, but has never been of great importance because of the process steps to be used, which include a change of liquor.
  • the polyamide fiber material is dyed with a liquor composed of an alkaline naphthol and a non-coupling-capable, water-insoluble diazonium compound stabilized by triazine formation in the form of a fine dispersion using a pull-out process, and then, after the stabilizing residue has been split off, the dye coupling of the two components is carried out brought about treatment in a hot developing bath containing sulfuric acid.
  • stretch cords - a textile article made of polyurethane threads spun with synthetic polyamide threads and cotton - in practice referred to as stretch cords - has become increasingly important. Because of the tightness of the polyamide encapsulation, the polyurethane fiber itself does not need to be dyed, provided the polyamide threads can be dyed tone-on-tone with the cotton pile.
  • a water-soluble diazoamino compound composed of a diazotized, aromatic or heterocyclic amine and cyanamide is used as the diazo component in that both dye components are dissolved in an aqueous, alcohol-containing liquor at temperatures of 60 ° to 70 ° C. on the textile material , and that one dampens this primer immediately after padding and before the acid treatment necessary for the release of the diazonium compound and coupling without intermediate drying.
  • the fiber material has previously been padded close to the cooking temperature in order to reduce the substantivity of the «naphthols and to obtain the same colors. If you use this temperature for dyeing polyamide-cellulose fiber mixtures, you get false stains because it is not possible to apply the dye components evenly to both types of fiber.
  • the coupling component and the diazo salt are dissolved in accordance with the dissolving instructions of the manufacturers and added to the padding liquor which is 60 ° to 70 ° C. and contains the usual chemicals.
  • the fiber mixtures themselves are padded at 60 ° to 70 ° C on one of the usual padding pad machines with 60 to 100% liquor absorption (based on the weight of the dry goods).
  • the primed textile is steamed without preliminary drying. Steaming is carried out at temperatures of 101 ° to 107 ° C., preferably 103 ° to 105 ° C., and at steaming times of 30 seconds to 5 minutes, preferably shorter, namely 30 seconds to 2 minutes. If an HT damper is present, the goods can also be steamed at 120 ° to 135 ° C. for 30 to 120 seconds without the result of the tone-on-tone coloring being impaired.
  • the acid treatment of the fiber material treated with the dye components is carried out in a fresh bath in order to bring about the coupling ability of the «diazo salt and dye coupling according to one of the three usual methods: continuously by padding with the acid or through an acid passage in a wide washing machine, or semi-continuously in the jigger.
  • the dye components for the new process are the Color Index, 3rd edition 1971, as Azoic Coupling Components ("Naphthole •) and the diazoamino compounds obtained by reaction with cyanamide of the diazotized chemical compounds listed as Azoic Diazo Components (" Diazo salts ”) in question.
  • the low to medium substantive products are preferably used for the block process.
  • diazo salts which are preferably suitable according to the invention, the derivatives of:
  • the new process can be used for any type of blended fabrics and blended fabrics made of cellulose and polyamide fibers in any mixing ratio.
  • the main thing is to dye stretch cord fabrics and knitted fabrics for outerwear, such as nickies and training suits.
  • the percent (%) designation used in the following exemplary embodiments of information about the composition of the fiber mixture or for the strength of the chemicals relates to “percent by weight”.
  • Solution 2 is then stirred into the bath batch and this is made up to a volume of 200 l with water at 70 ° C.
  • the padding liquor thus obtained is padded at 70 ° C and with a 70% liquor absorption (based on the weight of the dry goods) and steamed immediately after padding, without intermediate drying, for 2 minutes at 105 ° C.
  • a textile material dyed evenly brick red in the proportions of polyamide fiber and cotton is obtained.
  • the stretch cord is bent along a rib, the polyamide fiber that appears shows the same color and depth as the cotton pile.
  • Solution 2 is then stirred into the bath batch and this is filled up with water at 60 ° C. to a volume of 3001.
  • the cord is padded at 60 ° C and with 70% liquor absorption (from the weight of the goods).
  • the damp tissue is steamed for 4 minutes at 102 ° C.
  • the cord is padded with 100% liquor absorption of the product weight, then subjected to an air passage of 30 seconds at room temperature and the dyeing thus obtained is rinsed in the 1st case of a board washing machine with water at 70 ° C. Finally, the colored goods are soaped in the remaining boxes of the wide-width washing machine in accordance with Example 1.
  • a full, clear orange dyeing of the cord is obtained with very good tone-on-tone dyeing of polyamide and cotton fibers.
  • the dye material is then dried at 110 ° C for better dye utilization.
  • the steaming according to the invention is omitted before drying, a significantly lighter coloration is obtained on the polyamide fiber portion, which is not useful in practice.
  • the fabric is padded at 60 ° C and 70% liquor absorption (based on the weight of the goods) and then steamed at 125 ° C for 30 seconds without drying.
  • a uniform scarlet dyeing with good tone-on-tone dyeing of cotton pile and the polyamide wound around the polyurethane threads are obtained.
  • the stretch properties of the goods are not affected in any way.
  • Dye 270 kg of a mixture of polyamide fiber and cotton in a ratio of 20:80. With a planned fleet intake of 70%, 190 I block fleet + 30 I chassis filling 220 I fleet are required.
  • the textile goods After padding the textile goods at 70 ° C and 70% liquor absorption (by the weight of the goods), they are steamed for 3 minutes at 102 ° C while wet and then the dye is developed with the same additives as in Example 1 and the dyed goods are post-treated.

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

Claims (4)

1. Procédé de teinture continue ou semi-continue en ton sur ton régulier, en un seul bain, de tissus ou tricots textiles formés de mélanges de fibres de cellulose et de fibres de polyamide de synthèse d'après une méthode de la technique de teinture par foulardage à l'aide de colorants azoïques insolubles formés sur les fibres à partir d'un copulant et d'un composé de diazoïque sous forme d'un composé de diazonium stabilisé, procédé selon lequel on applique ensemble les constituants du colorant dans des conditions alcalines et l'on effectue le développement du colorant, par copulation sous l'effet d'un acide, procédé caractérisé en ce qu'on utilise comme composant de diazoïque un composé diazoaminé hydrosoluble obtenu à partir d'une amine aromatique ou hétérocyclique diazotée et de cyanamide ; on applique par foulardage sur la matière textile les deux constituants du colorant dissous dans un bain aqueux contenant de l'alcool à des températures de 60° à 70 °C; et l'on soumet ce piétage immédiatement après le foulardage, avant le traitement à l'acide nécessaire pour libérer le composé de diazonium et effectuer la copulation, et sans séchage intermédiaire, à un vaporisage.
2. Procédé selon la revendication 1, caractérisé en ce qu'on soumet la matière textile à 30 secondes à 5 minutes, avantageusement jusqu'à 2 minutes, de vaporisage.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'on soumet la matière textile à du vaporisage à des températures de 101° à 107 °C, avantageusement de 103° à 105 °C.
4. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'on soumet la matière textile à du vaporisage à des températures de 120° à 135°C.
EP80100348A 1979-01-26 1980-01-23 Procédé de teinture en continu ou en semi-continu de mélanges de fibres cellulosiques et de fibres de polyamides synthétiques avec des colorants azoiques produits sur la fibre Expired EP0014852B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80100348T ATE930T1 (de) 1979-01-26 1980-01-23 Verfahren zum kontinuierlichen oder halbkontinuierlichen faerben von mischungen aus cellulosefasern und synthetischen polyamidfasern mit azo-entwicklungsfarbstoffen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2902977A DE2902977C2 (de) 1979-01-26 1979-01-26 Verfahren zum kontinuierlichen oder halbkontinuierlichen Färben von Mischungen aus Cellulosefasern und synthetischen Polyamidfasern mit Azo-Entwicklungsfarbstoffen
DE2902977 1979-01-26

Publications (2)

Publication Number Publication Date
EP0014852A1 EP0014852A1 (fr) 1980-09-03
EP0014852B1 true EP0014852B1 (fr) 1982-04-28

Family

ID=6061443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100348A Expired EP0014852B1 (fr) 1979-01-26 1980-01-23 Procédé de teinture en continu ou en semi-continu de mélanges de fibres cellulosiques et de fibres de polyamides synthétiques avec des colorants azoiques produits sur la fibre

Country Status (3)

Country Link
EP (1) EP0014852B1 (fr)
AT (1) ATE930T1 (fr)
DE (2) DE2902977C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3514111A1 (de) * 1985-04-19 1986-10-23 Hoechst Ag, 6230 Frankfurt Verfahren zum endengleichen faerben von cellulosefasermaterialien mit azo-entwicklungsfarbstoffen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1021901A (fr) * 1950-07-11 1953-02-25 Francolor Sa Procédé de formation de colorants azoïques insolubles sur matières textiles, à bse de polymères synthétiques à poids moléculaire élevé
DE1262957C2 (de) * 1963-10-19 1968-10-03 Hoechst Ag Verfahren zur Erzeugung von wasserunloeslichen Azofarbstoffen auf Textilmaterial aus Cellulose- oder Eiweissfasern
US3617180A (en) * 1968-08-19 1971-11-02 Gaf Corp Azoic dye composition containing oxygen-containing primary amines and process of using same
CH592199B5 (fr) * 1975-02-21 1977-10-14 Ciba Geigy Ag
DE2606905A1 (de) * 1976-02-20 1977-08-25 Hoechst Ag Verfahren zum klotz-faerben oder bedrucken von materialien aus synthesefasern und deren mischungen mit cellulosefasern

Also Published As

Publication number Publication date
DE2902977C2 (de) 1980-12-18
ATE930T1 (de) 1982-05-15
DE2902977B1 (de) 1980-04-24
DE3060310D1 (en) 1982-06-09
EP0014852A1 (fr) 1980-09-03

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