EP0014384B1 - Procédé de teinture dans un bain unique de mélanges de fibres cellulosiques et de fibres de polyamides synthétiques avec des colorants azoiques produits sur la fibre - Google Patents

Procédé de teinture dans un bain unique 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
EP0014384B1
EP0014384B1 EP80100347A EP80100347A EP0014384B1 EP 0014384 B1 EP0014384 B1 EP 0014384B1 EP 80100347 A EP80100347 A EP 80100347A EP 80100347 A EP80100347 A EP 80100347A EP 0014384 B1 EP0014384 B1 EP 0014384B1
Authority
EP
European Patent Office
Prior art keywords
dyeing
liquor
coupling component
component
bath
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
EP80100347A
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German (de)
English (en)
Other versions
EP0014384A1 (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
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Hoechst AG
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Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0014384A1 publication Critical patent/EP0014384A1/fr
Application granted granted Critical
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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 method for single-bath, uniform tone-on-tone dyeing of textile fabrics or knitted fabrics from mixtures of cellulose fibers and synthetic polyamide fibers by the exhaust method with insoluble azo dyes produced on the fiber from the coupling component and diazo component in the form of a stabilized diazonium compound in that the dye components are applied at least partially in succession under alkaline conditions and the dye development is brought about by the action of acid.
  • the ice dye technique that has long been introduced for dyeing textile articles with so-called development dyes is based on the principle of assembling the insoluble dye on the fiber from two relatively small, soluble and well-diffusing sections.
  • DE-PS 1 262 957 describes an exhaust process for the production of water-insoluble azo dyes on cellulose fibers, which involves the use of a mixture of a coupling component (hereinafter referred to as "naphthol”) with a stabilized and not readily couplable diazonium Connection (hereinafter referred to as "diazo salt”).
  • naphthol a coupling component
  • diazo salt a stabilized and not readily couplable diazonium Connection
  • Diazoamino compounds which can be obtained by reacting the diazotized amine with cyanamide and which, following the pull-up phase under acidic conditions, are re-formed into the couplable diazonium compound and used for coupling with the naphthol are used as such a “diazo salt”. to be brought.
  • the present invention is based on the object of eliminating the abovementioned disadvantages in the dyeing process using coupling and diazonium components from ice-dye technology, thereby achieving a waste water pollution which is at least halved and bringing about a much lower water consumption, in which case mixtures of cellulose fibers and synthetic polyamide fibers are to be dyed in a single operation, both fiber parts simultaneously and in a matching shade.
  • a water-soluble diazoamino compound composed of a diazotized, aromatic or heterocyclic amine and cyanamide is used as the diazo component by treating the textile material at from 65 ° to 75 ° C. with an aqueous liquor which contains the dissolved diazo component and optionally containing a protective colloid, then this liquor together with the primed textile at temperatures of 30 ° to 45 ° C. cools down and further treated at the reduced temperature, with the dissolved coupling component being added in portions at the same time during these two phases of the dyeing operation, and the acid treatment required for releasing the diazonium compound and coupling being carried out without changing the liquor.
  • the coupling component and the “diazo salt” are dissolved in accordance with the dissolving instructions of the manufacturers.
  • the new dyeing process proceeds as follows:
  • an aqueous dye liquor which contains 5 to 7 cm 3/1 sodium hydroxide solution (32.5% pure), from 0 to 2 g / I of a protective colloid based on sulfite waste liquor, which is generally necessary for reasons of bath stability, and from 10 to Contains 30 g / I sodium chloride or sodium sulfate.
  • the amount required for the staining is added a solution of the stabilized with cyanamide diazonium compound ( "diazo salt"), the previously added for reasons of solubility even 0.2 to 0.4 g / I Oleylme t hyltaurin. have been.
  • this bath is added with a third to two thirds of the total amount of the coupling component released according to the cold dissolving instructions.
  • the bath prepared in this way already has a temperature of 65 ° to 75 ° C., preferably 70 ° C., from the dissolving process or is optionally heated to this temperature if it should have dropped below it by added solutions etc.
  • the fiber material is dyed with this liquor for 20 minutes at the set temperature of 65 ° to 75 ° C., then the liquor is allowed to cool down to temperatures of 30 ° to 45 ° C. together with the textile material contained therein.
  • This process can be accelerated by adding cold water, in which case the dye bath of the first stage is not prepared with the full amount of liquor from the outset.
  • a reduced dyeing bath temperature which is 35 ° to 40 ° C, because firstly the cooling process does not take so long and, moreover, it does not require as much energy.
  • the desired temperature is reached, the remaining amount of coupling component is added and the goods are dyed again for 20 minutes at the now lower temperature. This latter process is the actual primer for the cellulose fiber content.
  • the pull-out bath will be given the amount specified for the combination of "naphthol” and "diazo salt” in the information leaflet of the Hoechst Aktiengesellschaft “Technical Council from Hoechst", textile No. 164 1 , without changing the fleet Acetic acid is added and the textile material is treated again under this acidic condition for 20 to 30 minutes at this temperature.
  • the hitherto stabilized diazonium compound and the coupling of the development dye on the fiber take place.
  • the goods are then soaped and finished as usual. The result is brilliant and genuine dyeings on the textile material, with both fiber parts being dyed in completely the same shade.
  • 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 new process can be used for any type of blended fabrics and knitted 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 tracksuits.
  • the percent (%) designation used in the following exemplary embodiments of information about the composition of the fiber mixture or for the strength of chemicals relates to “percent by weight”.
  • the blended fabric on both fiber components is colored completely evenly in a strong red.
  • the stretch cord After drying, the stretch cord is colored completely evenly in a strong red on both fiber parts of the mixture.
  • the fabric treated according to the above regulation is dyed completely evenly in a deep red shade on both fiber components.

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

Claims (3)

1. Procédé pour teindre en un seul bain, en ton sur ton uniforme, des étoffes ou tricots textiles constitués de mélanges de fibres cellulosiques et de fibres de polyamide synthétiques d'après la méthode par épuisement à l'aide de colorants azoîques produits sur les fibres, à partir d'un copulant et d'un composant diazotable sous forme d'un composé de diazonium stabilisé, procédé selon lequel on applique a-i moins partiellement l'un après l'autre, dans des conditions alcalines, les composants générateurs du colorant et l'on effectue le développement du colorant en faisant agir un acide, procédé caractérisé en ce qu'on utilise comme composant diazotable un composé diazoamino hydrosoluble obtenu à partir d'une amine diazotée, aromatique ou hétérocyclique, et de cyanamide; en ce qu'on traite la matière textile à des températures de 65° à 75°C avec un bain aqueux contenant le composant diazotable dissous et éventuellement un colloide protecteur, puis l'on refroidit jusqu'à des températures de 30° à 45° C ce bain contenant la matière textile piétée et l'on continue le traitement à la température réduite, cependant que, durant ces deux phases de l'opération de teinture aux températures différentes, on ajoute par portions simultanément le copulant dissous; et en ce que l'on effectue sans changement de bain le traitement à l'acide nécessaire pour libérer le composé de diazonium et provoquer la copulation.
2. Procédé selon revendication 1, caractérisé en ce que l'on introduit dans le bain chaud à 70° C environ une quantité représentant un tiers à deux tiers du volume de la quantité totale nécessaire du colorant dissous et l'on introduit le rest de ce colorant dissous dans le bain refroidi.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on effectue la première phase de l'opération de teinture à des températures de 65° à 70° C et la seconde phase à des températures de 35° à 40° C.
EP80100347A 1979-01-26 1980-01-23 Procédé de teinture dans un bain unique de mélanges de fibres cellulosiques et de fibres de polyamides synthétiques avec des colorants azoiques produits sur la fibre Expired EP0014384B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2902976A DE2902976C2 (de) 1979-01-26 1979-01-26 Verfahren zum Färben von Mischungen aus Cellulosefasern und synthetischen Polyamidfasern mit Azo-Entwicklungsfarbstoffen
DE2902976 1979-01-26

Publications (2)

Publication Number Publication Date
EP0014384A1 EP0014384A1 (fr) 1980-08-20
EP0014384B1 true EP0014384B1 (fr) 1982-03-10

Family

ID=6061442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100347A Expired EP0014384B1 (fr) 1979-01-26 1980-01-23 Procédé de teinture dans un bain unique de mélanges de fibres cellulosiques et de fibres de polyamides synthétiques avec des colorants azoiques produits sur la fibre

Country Status (2)

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EP (1) EP0014384B1 (fr)
DE (2) DE2902976C2 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE884490C (de) * 1941-06-07 1953-07-27 Basf Ag Verfahren zum Faerben von Textilmischwaren aus Polyamidfasern und Baumwolle, Zellwolle, Viskosekunstseide oder Kupferkunstseide
GB772593A (en) * 1952-03-15 1957-04-17 Hoechst Ag Process for producing azo-dyestuffs insoluble in water on mixtures of polyamide fibres with animal or vegetable fibres
DE1262957C2 (de) * 1963-10-19 1968-10-03 Hoechst Ag Verfahren zur Erzeugung von wasserunloeslichen Azofarbstoffen auf Textilmaterial aus Cellulose- oder Eiweissfasern

Also Published As

Publication number Publication date
DE2902976B1 (de) 1980-04-24
EP0014384A1 (fr) 1980-08-20
DE2902976C2 (de) 1980-12-18
DE3060220D1 (en) 1982-04-08

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