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
  • 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
  • D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
  • D06P1/52—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 insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
  • D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
  • D06P1/5278—Polyamides; Polyimides; Polylactames; Polyalkyleneimines
• • 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
  • D06P3/58—Material containing hydroxyl groups
  • D06P3/60—Natural or regenerated cellulose
  • D06P3/66—Natural or regenerated cellulose 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
  • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
  • D06P5/02—After-treatment
  • D06P5/04—After-treatment with organic compounds
  • D06P5/08—After-treatment with organic compounds macromolecular

Definitions

• fiber materials containing cellulose fibers which are dyed with reactive dyes are usually subjected to a boiling alkaline wash in the presence of surfactants in order to remove the dye which is not fixed on the fabric.
• surfactants in order to remove the dye which is not fixed on the fabric.
• colored cellulose fiber materials are obtained which, although they have sufficient wash fastnesses, are in need of improvement with regard to water fastness, ironing fastness and also sweat fastness.
• DE-OS 27 47 358 discloses a process for the aftertreatment of cellulose fiber materials which are dyed with reactive dyes, in which the fiber materials are treated with an aqueous solution of polyamines, polyamides, polyurethanes and / or polyureas containing secondary and / or tertiary amino groups .
• the object of the present invention is to provide a process for the aftertreatment of reactive dyeings on textile materials containing cellulose fibers, in which dyed textile materials with high wet fastness properties are obtained, the light fastness and fastness to rubbing of which practically do not deteriorate compared to a dyed material washed in the usual way are.
• the textile materials containing cellulose fibers can be in the form of fibers, yarns, fabrics or other piece goods.
• the cellulose fibers are, for example, cotton, linen or cellulose.
• the textile materials which are post-treated according to the invention may consist solely of cellulose fibers or may contain cellulose fibers, optionally in a mixture with synthetic fibers, such as polyamide, polyacrylonitrile or polyester fibers.
• the cellulose fibers are dyed in a known manner with the commercially available reactive dyes, e.g. at 20 to 100 ° C after the exhaust process or at room temperature after the cold dwell process.
• the textile material is first rinsed with cold water, then cleaned once or twice with hot water (70 to 100 ° C) and, if necessary, once more with water at a temperature of 60 to 80 ° C. Only then is the textile material containing the cellulose fibers dyed with the reactive dyes treated with the cationic benzylated resins to be used as aftertreatment agent in aqueous solution.
• the cationic condensation products to be used according to the invention are produced by condensation of methylamine and epichlorohydrin in a molar ratio of 1: 0.8 to 1.
• the condensation of methylamine and epichlorohydrin is known and takes place in the temperature range from 30 to 90 ° C., preferably 40 to 80 ° C.
• the condensation is carried out in aqueous or alcoholic solution with a solids content of the solution of usually 20 to 60% by weight.
• the alcoholic solvent used is, for example, ethylene glycol, propylene glycol, diglycol and / or neopentyl glycol.
• the condensation takes place in the pH range from 8 to 12, preferably 8 to 9.
• Bases such as sodium hydroxide solution, potassium hydroxide solution, sodium carbonate, calcium oxide, calcium hydroxide, barium oxide or balium hydroxide, are optionally used to adjust the pH. If an excess of methylamine is used in the condensation, a pH in the alkaline range is established due to the basicity of the methylamine. The condensation is carried out so far that water-soluble products are formed which have a viscosity of at least 300 mPa.s in 20% aqueous solution at a temperature of 20 ° C.
• the cationic condensation products according to b) to be used according to the invention which are obtainable by heating triethanolamine and / or triisopropanolamine in the presence of acidic catalysts at temperatures from 120 to 280 ° C., are also known compounds, cf. DE-AS 11 27 084 and DE-AS 12 43 874.
• acidic catalysts used are formic acid, oxalic acid and the salts and esters water acids, phosphorous acid or their ammonium and amine salts, halides, di- and triesters of phosphorous acid, amides of phosphorous acid, ester amides or phosphonic acid or their halides, esters, amides or ester amides.
• the condensation of triethanolamine, triisopropanolamine or mixtures of the compounds mentioned is preferably carried out in the presence of phosphorous acid or hypophosphorous acid.
• the acidic catalysts are used in an amount of 0.1 to 1.0% by weight, based on the hydroxyalkylamine to be condensed. In this way, the condensation products b) are obtained which have a viscosity of at least 40,000 mPa.s, preferably 40,000 to 60,000 mPa.s, at 100% at a temperature of 20 ° C.
• the water-soluble cationic condensation products a) and b) described above are quaternized in a second reaction step, 0.25 to 1 mol, preferably 0.5 to 1 mol, based in each case on 1 mol of amine in the condensation product a) and b) Benzyl chloride used.
• the quaternization takes place in an aqueous, preferably in an aqueous-alcoholic medium at temperatures from 60 to 100 ° C., but can also be carried out at higher temperatures, but then pressure must be used.
• the reaction of the condensation products a) and b) can be carried out in the presence of alcohols as solubilizers.
• the aqueous or alcoholic solutions of the benzylated condensation products a) and b) can be used directly for the aftertreatment of reactive dyeings on textile materials containing cellulose fibers.
• the viscosity of the condensation products a) and b) reacted with benzyl chloride in 20% aqueous solution at 20 ° C. is at least 6 mPa.s and is preferably in the range from 8 to 200 mPa.s.
• the aftertreatment of the cellulose fiber materials dyed with reactive dyes is carried out discontinuously in dyeing apparatus with an aqueous liquor of the benzylated condensation products a) or b), or continuously for Kandenband in liss recipients, or flat material on foulards or wide-washing machines.
• the discontinuous aftertreatment of the dyed materials with the aqueous liquors generally takes 5 to 30 minutes.
• the concentration of the water-soluble quaternary resins in the aftertreatment liquor is 0.1 to 5, preferably 0.25 to 2 g / l.
• the liquor ratio is in the range from 1: 5 to 50, preferably 1:10 to 20.
• the aftertreatment liquor has a pH in the range from 4 to 11, preferably 5 to 8.
• the quaternized resins can also be applied to the goods, which is to be treated, is padded.
• aqueous solutions of the benzylated resin are generally used in a concentration of 1 to 50 g / l, preferably 2.5 to 15 g / l.
• the cellulose fiber materials dyed with reactive dyes are aftertreated with the benzylated cationic resins, they are rinsed well with water, advantageously first at least once with cold water and then at least once with water at a temperature of 70 to 100.degree.
• the hydrolyzed reactive dyes washed out of the textile material do not give any precipitates in the presence of the products to be used according to the invention. If, on the other hand, condensation products of dimethylamine and epichlorohydrin are used, then there are disruptive precipitations in the aftertreatment liquor.
• the aftertreatment according to the invention can be carried out in the temperature range from 5 to 100.degree. C. and is carried out in a procedure analogous to an exhaust process, preferably at temperatures from 40 to 70.degree.
• the procedure can also be such that the cellulose material colored with the reactive dyes is first rinsed out with cold and hot water, then treated with the aqueous solution of the benzylated resin at near boiling temperature and then rinsed with water.
• the textile material containing post-treated cellulose fibers according to the invention shows no color brightening, so that even with combination dyeings there are no color shifts. In this way, dyeings are obtained which meet the strict requirements placed on dyeings in practice in terms of water fastness. The light fastness and fastness to rubbing of the dyeings is practically not deteriorated by the aftertreatment according to the invention.
• the textile material containing cellulose fibers can be rinsed. Then it is dried.
• Resin 1 (condensation product of methylamine and epichlorohydrin)
• the resin has a viscosity of 350 mPas (20 ° C, D k : 74 s ⁇ 1), a chloride content of 2.22 mmol / g and a refractive index of n D 20: 1,393.
• 3300 g of this methylamine-epichlorohydrin condensation product are mixed with 1620 diglycol and 65 g of 50% sodium hydroxide solution, heated to 60 to 70 ° C., 1008 g of benzyl chloride are added dropwise at this temperature in the course of 0.5 hours and then stirred at 80 ° C. for 3 hours. It is adjusted to pH 4.0 with 53 g (99% strength) formic acid, diluted with 2459 g diglycol and cooled to room temperature.
• the cationic resin shows a chloride content of 1.83 mmol / g, an acid number (alcoholic KOH) of 0.30 mmol / g, a viscosity (Haake Rotavisco) of 150 mPas (measured at 20 ° C.) (D k : 26, 4 s ⁇ 1), a refractive index of 1.4546 and a pH of 4.0.
• Knitwear made of cotton is, based on the goods, dyed with 5% of the orange reactive dye of Color Index No. 18260 in a liquor ratio of 1:20 with a liquor which, in addition to dye, contains 60 g / l sodium chloride, 9 g / l sodium carbonate and 1 g / l Contains sodium bicarbonate.
• the liquor is drained, the material is then rinsed with cold water in a liquor ratio of 1:20, the rinsing liquor is drained off and the material is then treated with water at 95 ° C. for 10 min. The water is drained off again and the dyed textile material is treated with an aqueous solution containing 2 g / l of resin 1.
• the aftertreatment with the aqueous solution of resin 1 is 10 minutes at the boiling point.
• the pH of the liquor is adjusted to 5 to 6.
• the originally colorless liquor is clearly stained. It is drained off and the material treated with it is rinsed with cold water and then dried.
• a dyeing is obtained which is difficult to achieve in water fastness (according to DIN 54 006, staining of the cotton accompanying fabric) with a rating of 4 to 5 and is thus 1.5 marks better than a dyeing which is treated with a conventional anionic or nonionic detergent becomes. For this it is difficult to determine the grade 3 for water justice.
• the unfixed dyes migrate from the colored to the white material.
• the test method is very sensitive, since the smallest amounts of unfixed dyes stain the white material.
• the dyeings are subjected to this ironing test.
• the "sandwiches” are pressed twice in the ironing machine at 180 ° C for 30 s each (Siemens Heimbügler Spezial) and then dried while the machine is running.
• a cotton knitwear is dyed as described in Example 1 and then rinsed with cold and hot water.
• the goods are then treated with an aqueous solution which contains 2 g / l of the resin 2 dissolved.
• the aftertreatment is carried out at 100 ° C. within 10 minutes.
• the goods are then rinsed once with cold water and dried.
• a 3% dyeing on knitted cotton fabric is produced by dyeing in a 1:20 liquor ratio with a liquor which, in addition to the dye mentioned, also contains 60 g / l sodium chloride and 20 g / l sodium carbonate.
• the goods in this liquor are heated to 80 ° C. in the course of 40 minutes, then kept at 80 ° C. for 60 minutes and then, as described in Example 1, rinsed once cold and hot. It is then aftertreated for 5 min at a temperature of 100 ° C. with an aqueous solution of 1 g / l of resin 1.
• the resulting colored liquor is drained off and the material is then rinsed with cold water and dried.
• a dyeing is obtained whose fastness to rubbing and lightfastness is not impaired by a dyeing which has been soaped in the customary manner.
• the water fastness difficult (bleeding of cotton fabric according to DIN 54 006) is 4 to 5.
• the dyebath is heated to 95 ° C. within 20 minutes. After a dwell time of 10 minutes at 95 ° C., 30 kg of sodium chloride are added and the temperature is then kept at 95 ° C. for a further 5 minutes. The mixture is cooled to 80 ° C. within 10 minutes. Then 4 kg of soda and 2 l of 44.8% aqueous sodium hydroxide solution are added.
• the dyebath is then kept at 80 ° C. for a further 30 minutes and then drained off. It is rinsed cold for 10 minutes with an overflow.
• the ironing test shows that the accompanying fabric heavily stains the untreated yarn (sample a).
• Treatment c) can reduce bleeding, but it cannot be prevented. Bleeding of the accompanying tissue is prevented only by treatment b).
• First dyeing is carried out at 25 ° C. for 15 minutes, then heated to 50 ° C. in 30 minutes, and the dyeing bath is kept at this temperature for 20 minutes. The mixture is then heated to 80 ° C. in 30 minutes and finished in 45 minutes.
• Rinsing is cold for 10 minutes, then 2 ⁇ 10 minutes at cooking temperature and then once for 10 minutes at 50 ° C.
• the goods are then aftertreated for 10 minutes at 60 ° C. with an aqueous solution which contained 1.5% of resin 2 and had a pH of about 7.
• an undyed accompanying fabric made of cotton calico is not bled on.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Coloring (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

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• 1985
  • 1985-10-22 DE DE19853537458 patent/DE3537458A1/de not_active Withdrawn
• 1986
  • 1986-10-15 AT AT86114237T patent/ATE39506T1/de not_active IP Right Cessation
  • 1986-10-15 EP EP86114237A patent/EP0223064B1/fr not_active Expired
  • 1986-10-15 DE DE8686114237T patent/DE3661555D1/de not_active Expired
  • 1986-10-21 JP JP61248543A patent/JPS62104987A/ja active Pending
  • 1986-10-21 US US06/921,111 patent/US4931065A/en not_active Expired - Fee Related

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