EP0058432B1 - Procédé de teinture en continu de fibres de laine - Google Patents

Procédé de teinture en continu de fibres de laine Download PDF

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Publication number
EP0058432B1
EP0058432B1 EP82101147A EP82101147A EP0058432B1 EP 0058432 B1 EP0058432 B1 EP 0058432B1 EP 82101147 A EP82101147 A EP 82101147A EP 82101147 A EP82101147 A EP 82101147A EP 0058432 B1 EP0058432 B1 EP 0058432B1
Authority
EP
European Patent Office
Prior art keywords
wool
liquor
dyeing
process according
sodium acetate
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
EP82101147A
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German (de)
English (en)
Other versions
EP0058432A1 (fr
Inventor
Johannes Bos
Hermann Heinz Konrad
Hans-Peter Dr. Maier
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
Publication of EP0058432A1 publication Critical patent/EP0058432A1/fr
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Publication of EP0058432B1 publication Critical patent/EP0058432B1/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
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/14—Wool
    • D06P3/148—Wool using reactive dyes

Definitions

  • the present invention relates to the continuous and uniform fast dyeing of wool fibers with reactive dyes containing sulfo groups in the presence of alkali acetate in an aqueous dye liquor after a pad-steaming process without intermediate drying.
  • methyltaurino-ethyl sulfone reactive dyes according to DE-C-23 40 044, where from a neutral or only slightly different medium and without intermediate drying is carried out by a steam fixing method and the impregnated solder to prevent the gray haze on the dyeings produced a mixture of anionic and non-ionic surfactants must be added; or the above-mentioned check also extends to continuous dyeing techniques which are carried out under the influence or in the presence of textile auxiliaries or substances having a similar effect.
  • This subheading also includes products that allow working in two-phase dyeing liquors. Processes in the category discussed above involve a high level of water consumption and therefore require a lot of energy and a correspondingly large amount of labor. Today, however, energy savings and easy-to-remove wastewater play an important role.
  • the invention explained below is based on the object of eliminating the disadvantages of the known processes for the continuous dyeing of wool fibers with sulfo-containing reactive dyes in relation to the length of the dyeing time, and in particular to shorten the steaming time.
  • the mandatory use of textile auxiliaries should be as low as possible, so that the emission of such polluted wastewater is largely reduced.
  • a liquor is used to block the fiber material which, in addition to the dissolved dyes, only contains 20 to 50 g / l, preferably 30 to 40 g / l sodium acetate and optionally a reducing agent, and after removing the Excess liquor the wet padding for dye fixation for 5 to 13 minutes, preferably 9 to 12 minutes, the action of saturated steam at temperatures of 102 ° to 115 ° C.
  • the feasibility of the new process is based on the principle of adding large amounts of sodium acetate to the padding liquor combined with a subsequent short-term steaming process without prior drying of the padding with the reactive dyes.
  • concentration of sodium acetate is such that it is present in the dye preparation in a clear excess based on the amount that would be required for the setting and maintenance of weakly acidic to neutral pH conditions.
  • the method of operation according to the invention allows the wool material to be continuously dyed without the involvement of additional textile auxiliaries or solubilizers.
  • the claimed pad dyeing technique is characterized above all by the fact that a very high color strength of the process products is achieved.
  • the product image available in this way is Excellent, this results in up to 100% greater color yields than with the previously usual methods for continuous wool dyeing.
  • the level of authenticity that can be achieved with the high color strength of the dyeings must be regarded as surprising.
  • the extraordinarily good fastness properties result from the covalent bond between dye and wool fiber that takes place within a very short time, which in turn has its origin in the use of sodium acetate.
  • no additional measures such as pH control etc. need to be taken, so that the implementation of the method described is very simplified.
  • Fiber damage does not occur in the course of the dyeing process according to the invention, although the pH of the padding liquor is about 9 at the start of the treatment. Firstly, the exposure time in this environment is very short, it is only a few seconds, and immediately after the goods enter the steamer, acetic acid is released, which then shifts the pH value to weakly acidic. At the end of the steam treatment, however, the padding liquor medium is shifted back to alkaline, but this state also only lasts for a few seconds and at the same time replaces an alkaline aftertreatment of the dyeings produced.
  • a very special advantage under the given conditions is the stability of the padding liquors, which is over 24 hours in this very weakly alkaline environment. This makes the entire dyeing process easier to handle.
  • the padding liquors used according to the invention can additionally contain thickeners, so that they can also be used for Vigoureux printing due to the more viscous consistency set in accordance with a modification of the present invention.
  • the rest of the procedure, in particular the measures for dye fixation, remains the same.
  • wool fibers are particularly suitable in the form of sliver, yarn, thread sheets and bundles of yarn, but also fabrics.
  • individual threads can also be treated in this way, but the effectiveness of the method is questioned in this case.
  • the new process is also suitable for dyeing the wool content of fiber blends.
  • the dyeing technique according to the present invention can also be applied to wool fibers which have been subjected to a "felt-free " finishing process - such wool is generally referred to as "superwash-treated wool” a polyimine or polyacrylic resin film (as described in Melliand Textile Reports 9/1971, page 1100, or in the Journal of the Society of Dyers and colors, Volume 88, Number 3/1972, pages 93-100)
  • the textile article made therefrom must withstand the hard stresses not required and not attained with normal wool, such as repeated washing at 60 ° C with the use of household detergents containing perforates, without matting, and consequently must also be color-fast. Such requirements at this high level of authenticity especially in the fastness to washing and sweating, he is primarily from dyeings with reactive dyes enough.
  • the organic dyes known under this term - regardless of the type of their reactive group - come into consideration as reactive dyes.
  • This class of dyes is referred to in the Color Index, 3rd edition 1971 as “reactive dyes. These are predominantly those dyes which contain at least one group which is reactive with the amino groups of polyamide fibers, a preliminary stage therefor or a substituent which is reactive with the amino groups of polyamide fibers.
  • Particularly suitable as the basic body of the organic dyes are those from the series of the azo, anthraquinone and phthalocyanine dyes, it being possible for the azo and phthalocyanine dyes to be both metal-free and metal-containing.
  • Reactive groups and precursors which form such reactive groups include, for example, epoxy groups, the ethyleneimide group, the vinyl grouping in the vinylsulfone or acrylic acid radical, also the ⁇ -sulfatoethylsulfone group, the ⁇ -chloroethylsulfone group or the ⁇ -dialkylamino-ethylsulfone group.
  • derivatives of the tetrafluorocyclobutyl series e.g. B. the tetrafluorocyclobutyl acrylic acid in question.
  • the reactive substituents in reactive dyes are those that are easily removable and leave an electrophilic residue.
  • Suitable substituents are 1 to 3 halogen atoms on the following ring systems: quinoxaline, triazine, pyrimidine, phthalazine, pyridazine and pyridazone.
  • Dyes with several identical or different types of reactive groups can also be used. Such reactive dyes of the type defined above often have more than one sulfonic acid group (apart from the reactive component of the dye) in the molecule, which can be distributed as desired over the chromophore, but are preferably bound to its aromatic radicals. Based on the color yields achievable with conventional exhaust processes, the dyes mentioned above give very good yields on wool in the case of the continuous process according to the invention.
  • the claimed process has proven to be superior to the known dyeing methods in which acetic acid (e.g. 25-35 g / l 60% acetic acid) or acetic acid together with urea instead of sodium acetate has been added to the padding liquor.
  • acetic acid e.g. 25-35 g / l 60% acetic acid
  • urea instead of sodium acetate
  • DE-A-2057400 also relates to a continuous process, according to which besides printing also the block dyeing of textile material made of non-chlorinated wool with reactive dyes including dye fixation - expediently after preliminary drying - is described by steaming with saturated steam.
  • the printing pastes or pad liquors used in accordance with this prior art also contain sodium acetate in such a high concentration as in the process according to the invention, the difference is based on Present invention this known dyeing technique in particular on the mandatory use of auxiliaries with a surface-active effect, for.
  • B. fatty acid polyglycol esters in amounts of 2 to 10 wt .-%.
  • the still moist fiber material is passed through a damper immediately after the padding process and steamed there for 12 minutes in saturated steam at 130 ° C.
  • the still moist fiber material is then immediately passed through a damper and steamed there at 110 ° C. for 9 minutes.
  • the colored goods are aftertreated as in Example 1. A strong, brilliant orange color is obtained.
  • the still moist fiber material is immediately passed through a steamer without intermediate drying and steamed there at 115 ° C. for 7 minutes. After a subsequent, cold and warm rinsing with water, an aftertreatment is carried out as described in Example 1. A navy blue dyeing is obtained on the yarn.
  • the still moist wool material is then steamed in a steamer at 102 ° C. for 13 minutes without intermediate drying and aftertreated as described in Example 1. A strong red color is obtained.
  • Example 4 The type and amounts of the additives and the implementation of the process can also be found in Example 4. A deep, flowery black is obtained on the wool fabric.
  • the still moist wool material is steamed for 6 minutes at 115 ° C immediately after padding.
  • the post-treatment of the goods so dyed is carried out as in Example 6. The result is a strong, clear blue color.

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

Claims (6)

1. Procédé pour la teinture solide, continue et uniforme, de fibres de laine par des colorants réactifs contenant des groupes sulfo en présence d'acétate de métal alcalin dans un bain de teinture aqueux selon un procédé de foulardage-vaporisage sans séchage intermédiaire, caractérisé en ce qu'on utilise pour le foulardage des fibres un bain qui, outre les colorants en solution, ne contient encore que 20 à 50 g/1 d'acétate de sodium et éventuellement un inhibiteur de réduction, et que, après élimination de l'excédent de bain, on soumet le foulardage humide, pour le fixage du colorant, pendant 5 à 13 minutes à l'action de la vapeur saturée à des températures de 102 à 115 °C.
2. Procédé selon la revendication 1, caractérisé en ce que la quantité d'acétate de sodium dans le bain de foulardage est de 30 à 40 g/1.
3. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le bain de foulardage contient en outre du m-nitrobenzènesulfonate de sodium.
4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le temps de vaporisage et de 9 à 12 minutes.
5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la teinture porte sur des fibres de laine sous forme de peigné, de fil, de nappes de fils et de paquets de fils.
6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'on teint une laine apprêtée infeutrable, par application d'une résine de polyimine ou d'une résine polyacrylique.
EP82101147A 1981-02-18 1982-02-17 Procédé de teinture en continu de fibres de laine Expired EP0058432B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813105906 DE3105906A1 (de) 1981-02-18 1981-02-18 Verfahren zum kontinuierlichen faerben von wollfasern
DE3105906 1981-02-18

Publications (2)

Publication Number Publication Date
EP0058432A1 EP0058432A1 (fr) 1982-08-25
EP0058432B1 true EP0058432B1 (fr) 1984-11-28

Family

ID=6125145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101147A Expired EP0058432B1 (fr) 1981-02-18 1982-02-17 Procédé de teinture en continu de fibres de laine

Country Status (2)

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EP (1) EP0058432B1 (fr)
DE (2) DE3105906A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1194480B (it) * 1982-11-27 1988-09-22 Mengele & Soehne Masch Karl Trinciaforaggi
CN102758326A (zh) * 2011-04-28 2012-10-31 孚日集团股份有限公司 巾被织物活性染料连续轧染湿短蒸加工工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU408860B2 (en) * 1966-10-04 1970-12-10 Improved composition, method and apparatus forthe dyeing of keratinous andother textile material
DE2057400C3 (de) * 1970-11-21 1975-11-06 Hoechst Ag, 6000 Frankfurt Verfahren zum Färben und Bedrucken von Textilmaterial aus nicht gechlorter Wolle
DE2244524C2 (de) * 1972-09-11 1974-07-18 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Vigoureuxdruck auf Wollkammzug
GB1501081A (en) * 1973-12-06 1978-02-15 Iws Nominee Co Ltd Printing method
DE2658863C2 (de) * 1976-12-24 1983-12-08 Hoechst Ag, 6230 Frankfurt Verfahren zum kontinuierlichen Färben von bahnförmigen Textilmaterialien

Also Published As

Publication number Publication date
DE3105906A1 (de) 1982-09-09
DE3261322D1 (en) 1985-01-10
EP0058432A1 (fr) 1982-08-25

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