EP0226982B1 - Procédé de teinture de la laine - Google Patents
Procédé de teinture de la laine Download PDFInfo
- Publication number
- EP0226982B1 EP0226982B1 EP86117358A EP86117358A EP0226982B1 EP 0226982 B1 EP0226982 B1 EP 0226982B1 EP 86117358 A EP86117358 A EP 86117358A EP 86117358 A EP86117358 A EP 86117358A EP 0226982 B1 EP0226982 B1 EP 0226982B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dyes
- wool
- acid
- dyeing
- dyed
- 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 - Lifetime
Links
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
-
- 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
- D06P3/16—Wool using acid dyes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
- Y10S8/02—Vinyl sulfones and precursors thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
- Y10S8/916—Natural fiber dyeing
- Y10S8/917—Wool or silk
Definitions
- the present invention relates to a process for the level dyeing of wool or the wool portion of fiber blends using the exhaust dyeing technique, in which aqueous liquors of dyes which are drawn under strongly acidic conditions are brought to action on the dye material with heating at pH values between 2 and 3.
- the dyeing of wool from an aqueous medium with acid dyes at pH values from 2 to 3 is well known. This pH value is usually generated by adding strong acids to the dyebath, e.g. of sulfuric acid or formic acid.
- the dyes used in practice generally give a fastness level on the dyed textile material, which is sufficient for woolen piece goods, but is not sufficient for sliver, yarn or flake.
- the leveling behavior of the dyes applied in this way, on the other hand, is good and normally presents no difficulties.
- dyeing wool with reactive dyes is now familiar to the person skilled in the art.
- This class of dyes is dyed on wool taking a variety of precautions at pH values in the range of 5.5 to 6.5.
- the said restrictive measures e.g. Maintaining temperature levels, dyeing processes with very long heating times of the liquor etc. primarily serve to achieve level dyeings, because this is usually the problem with dyeing wool with a reactive dyeing machine. This results in dyeings with a very high level of fastness under these weakly acidic conditions.
- the object of the invention in question was therefore to develop a dyeing process for wool, which allows the dyer to obtain trichromatic dyeings while maintaining excellent levelness under strongly acidic conditions, but with an increased fastness level, and which enables the fastness weaknesses in switch off the range of strongly acidic acid dyes without having to change the dyeing process.
- the object set out above is achieved according to the invention by combining strongly acidic acid dyes and reactive dyes with one another in trichromatic recipes, acid dyes which are insufficient in the fastness properties being replaced by reactive dyes having the same or a similar shade.
- GB-A-960 269 which deals with the uniform dyeing of wool / acrylic fiber mixtures from an acidic medium with reactive dyes in the presence of cationic auxiliaries, is mentioned that in special cases the tone-on-tone dyeing of both Fiber types can be influenced favorably by the use of whale dyes, so that they meet the required light and wet fastness properties. Nowhere in the GB-PS is there any mention of the replacement of strongly acidic acid dyes by reactive dyes.
- CI Reactive Dyes Dyes into consideration which are able to form a covalent bond with fibers containing OH groups and / or NH groups. These are primarily dyes which contain at least one group which is reactive with hydroxyl or amino groups in the fiber material with a polyamide structure, a precursor for this or a substituent which is reactive with the constituents of the fiber molecule mentioned.
- dyes of the vinyl sulfone type are used for the present process, with which the fiber reacts via an addition mechanism via the vinyl sulfone form of the dye.
- such dyes as precursors of this characteristic group can have the ⁇ -sulfatoethysulfone group, the ⁇ -chloroethylsulfone group or the ß-dialkylamino-ethylsulfone group, which during the dyeing process with the intermediate formation of the vinylsulfone - Form react with the fiber.
- Reactive dyes with other reactive systems can only be used for the new process after an extremely strict selection, because only individual dyes from such ranges can be dyed regardless of the strongly acidic application conditions on wool.
- dyes which, in addition to a reactive residue of the vinylsulfone type or a reactive group described above as a precursor thereof, additionally have one or more groups which react with the wool according to the substitution mechanism, e.g. a monochlorotriazinyl or monofluorotriazinyl group, on wool articles according to the process give dyeings with excellent levelness and very high fastness properties.
- Particularly suitable as the basic body of the chromophoric system of these organic dyes with reactive groups are those from the series of the azo, anthraquinone and phthalocyanine compounds, the azo and phthalocyanine dyes being both metal-free and metal-containing.
- Reactive dyes of the type defined above often have more than one sulfonic acid group (except in the reactive grouping of the dye) in the molecule, which can be distributed arbitrarily over the chromophore, but are preferably bound to its armature radicals.
- the dyer is thus given the opportunity to use his dye store even better by combining conventional acid dyes with reactive dyes, without being forced to abandon the dyeing process introduced so far due to the shortcomings in trichromatic behavior To suffer loss of authenticity.
- Sulfuric acid is expediently used as the acid for adjusting the pH from 2 to 3 in the dyeing according to the invention. Amounts of 3 to 5% of 96% H 2 S0 4 , based on the wool weight, are required for this.
- the pull-out dyeing method according to the invention mainly comes to ordinary, i.e. wool that has not been pretreated with an anti-felt finish or fiber mixes constructed in this way. In general, it is used for dyeing piece goods, where the leveling of the dyeings is particularly important. However, the higher authenticity level of the dyeings that can be achieved also allows this dyeing technique to be used for a different presentation of the wool in special cases.
- the pull-out liquor is prepared at 50 ° C with all ingredients, such as the two types of dye, auxiliary materials and also the required acid.
- the bath is now heated to the dyeing temperature (95 ° to 110 ° C.) within 30 to 50 minutes and the goods are then dyed for 60 to 90 minutes under these temperature conditions.
- the resulting dye is then cooled by adding cold water to the dyeing tank, then rinsed clear and dried.
- the aforementioned method has certain disadvantages compared to the following variant, so that the latter will generally be preferred. These disadvantages are primarily the longer dyeing time (2 to 2 1/2 hours). In addition, carbonized wool must be neutralized before the dyeing process, which in turn means more time and more chemicals.
- the dye bath is set at 50 ° C with both types of dyestuff and auxiliaries, but without the sulfuric acid required for dye fixation, and the liquor - as quickly as the machine allows it - drives to the dyeing temperature (95 ° to 110 ° C) and then metered in the acid of the liquor under fixing conditions for the dyes over a longer period (20 to 40 minutes) in linear or progressive amounts, the time of metering being included in the total dyeing time of 60 to 90 minutes.
- the relevant measures can be carried out discontinuously in portions and also continuously in terms of quantity in accordance with a predetermined time schedule.
- the dyed goods are then cooled, rinsed and dried.
- This second process variant results in a significant reduction in dyeing time (only 80 to 120 minutes in total).
- the authenticity level of the dyeings as well as their loss (levelness) are completely preserved. It should be particularly emphasized that for the dyeing treatment according to this variant too carbonized wool is suitable, which does not have to be subjected to prior neutralization, so that the total time saved in this special case is even greater.
- Dyes which are conversion products of sulfonyl reactive dyes with N-methyl taurine, are present in the structure represented by the respective formula after being dissolved correctly.
- the bath temperature is now raised to 98 ° C. within 40 minutes and the goods are then dyed for 80 minutes under these temperature conditions. Then the colored wool is cooled by adding cold water to the bath and the latter is then rinsed clear with further water.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86117358T ATE53080T1 (de) | 1985-12-18 | 1986-12-12 | Verfahren zum faerben von wolle. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3544796 | 1985-12-18 | ||
DE19853544796 DE3544796A1 (de) | 1985-12-18 | 1985-12-18 | Verfahren zum faerben von wolle |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0226982A2 EP0226982A2 (fr) | 1987-07-01 |
EP0226982A3 EP0226982A3 (en) | 1987-11-04 |
EP0226982B1 true EP0226982B1 (fr) | 1990-05-23 |
Family
ID=6288772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86117358A Expired - Lifetime EP0226982B1 (fr) | 1985-12-18 | 1986-12-12 | Procédé de teinture de la laine |
Country Status (4)
Country | Link |
---|---|
US (1) | US4911735A (fr) |
EP (1) | EP0226982B1 (fr) |
AT (1) | ATE53080T1 (fr) |
DE (2) | DE3544796A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2611737B1 (fr) * | 1987-03-04 | 1993-07-23 | Sandoz Sa | Melanges de colorants anioniques pour la teinture de la laine |
US5131918A (en) * | 1990-12-13 | 1992-07-21 | Hoechst Celanese Corporation | Process for dyeing mixed anionic/cationic polyamide substrates with a specific type of vinyl sulfone dye |
EP0575541A1 (fr) * | 1991-03-11 | 1993-12-29 | Hoechst Celanese Corporation | Procede de teinture de substrats en polyamide |
DE60112964T2 (de) * | 2000-12-05 | 2006-02-16 | Clariant Finance (Bvi) Ltd., Road Town | Trichromie-faerbeverfahren |
GB0124842D0 (en) | 2001-10-17 | 2001-12-05 | Clariant Int Ltd | Improvements relating to organic compounds |
WO2003106568A1 (fr) * | 2002-06-13 | 2003-12-24 | Clariant International Ltd | Colorants disazo ayant une affinite adaptee |
DE602005022424D1 (de) * | 2004-04-06 | 2010-09-02 | Clariant Finance Bvi Ltd | Färbeverfahren sowie farbtoffmischungen |
CN113073483A (zh) * | 2021-05-20 | 2021-07-06 | 张家港扬子染整有限公司 | 一种改善羊毛翠蓝色匀染性的染色工艺 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US702A (en) * | 1838-04-21 | Improved process of dyeing wool | ||
GB960269A (en) * | 1961-08-04 | 1964-06-10 | Geigy Co Ltd | Improvements in or relating to union dyeing |
CH612562B (de) * | 1976-01-06 | Ciba Geigy Ag | Verfahren zum faerben von textilmaterial. | |
GB1458632A (en) * | 1973-06-12 | 1976-12-15 | Carpets International Td | Reactive dyeing process |
DE2841800A1 (de) * | 1977-09-29 | 1979-04-12 | Ciba Geigy Ag | Verfahren zum faerben von wollhaltigen fasermaterialien |
GB2023187A (en) * | 1978-06-20 | 1979-12-28 | Ici Ltd | Process for Dyeing Polyamide Textiles |
DE3467907D1 (en) * | 1983-04-20 | 1988-01-14 | Ciba Geigy Ag | Process for dyeing silk or silk-containing fibrous material blends |
FR2552791B1 (fr) * | 1983-09-29 | 1986-12-05 | Sandoz Sa | Procede de teinture de substrats textiles comprenant de la laine |
DE3506654A1 (de) * | 1985-02-26 | 1986-08-28 | Hoechst Ag, 6230 Frankfurt | Niedertemperatur-faerbeverfahren fuer wollfasern |
-
1985
- 1985-12-18 DE DE19853544796 patent/DE3544796A1/de not_active Withdrawn
-
1986
- 1986-12-12 DE DE8686117358T patent/DE3671486D1/de not_active Expired - Fee Related
- 1986-12-12 AT AT86117358T patent/ATE53080T1/de not_active IP Right Cessation
- 1986-12-12 EP EP86117358A patent/EP0226982B1/fr not_active Expired - Lifetime
- 1986-12-16 US US06/942,520 patent/US4911735A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0226982A3 (en) | 1987-11-04 |
DE3544796A1 (de) | 1987-06-19 |
US4911735A (en) | 1990-03-27 |
DE3671486D1 (de) | 1990-06-28 |
ATE53080T1 (de) | 1990-06-15 |
EP0226982A2 (fr) | 1987-07-01 |
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