Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
  • D06M13/385—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen containing epoxy groups
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
  • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
  • D06M11/30—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with oxides of halogens, oxyacids of halogens or their salts, e.g. with perchlorates
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
  • D06M13/35—Heterocyclic compounds
  • D06M13/355—Heterocyclic compounds having six-membered heterocyclic rings
• • 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

• Wool which is finished and dyed using the Hercosett process, has low wet fastness to dyeing.
• these dyeings must have a high level of wet fastness. It is therefore known to improve the wet fastness of dyed wool, which is made felt-proof according to the Hercosett process, with the help of an aftertreatment.
• Such methods are known for example from DT-OS 28 01 535 and DE-OS 29 49 510.
• the object of the invention is to provide products for the felt-proof finishing of wool, which are easier to use in practice than the known resins and which are also more effective than the known resins.
• a further object of the invention is the production of wool that has been treated and dyed to be felt-proof, the dyeing already having such a high wet fastness that the otherwise customary aftertreatment can be dispensed with.
• the wool which is treated by the process according to the invention can be in the form of flake, sliver, yarn, woven or knitted fabric. As in the Hercosett process, it is chlorinated in a first treatment stage. As with this, it is essential that the pH of the chlorine treatment bath be below 4. A pH of 0.5 to 3 is preferably set here.
• chlorinating agents e.g. water-soluble hypochlorites such as sodium hypochlorite, gaseous chlorine which is introduced into water or chlorine-releasing agents such as alkali metal dichloroisocyanurates can be used.
• the devices for the first treatment stage can be, for example, a Lisseuse bath for combing, a Leviathan bath for flake or a foulard for piece goods.
• the chlorination can also be carried out batchwise in a dyeing apparatus in a known manner. At most, a strong liquor circulation or a strong agitation of the wool in the bathroom is necessary, so that a uniform chlorination of the wool is ensured at the proposed low pH.
• the chlorination temperature is usually below 30 ° C.
• the chlorination is carried out according to the prior art to such an extent that the wool reacts with 0.5 to 2 percent by weight of active chlorine.
• the excess chlorine is removed in a known manner using reducing agents.
• the chlorinated wool is treated in a bath with aqueous solutions of sodium sulfite, sodium hydrogen sulfite, sodium dithionite, thiourea dioxide or zinc hydroximethanesulfinate at temperatures from 20 to 90, preferably from 30 to 80 ° C.
• the chlorinated wool After the chlorinated wool has been treated with reducing agents, it is washed one or more times with water, preferably with warm water, in each case squeezed and dried.
• the wool treated in this way is dried at temperatures up to 150, preferably 60 to 150 ° C.
• Suitable dyes are, for example, acid dyes, 1: 1 and 1: 2 metal complex dyes, post-chromating dyes and reactive dyes. These dyes are those which are usually used for dyeing wool. Their structure can be found in the color index; they are commercially available. Methods for dyeing wool are also state of the art, so that there is no need to go into them at this point.
• the dyeing is carried out mainly in an aqueous medium at temperatures from 95 to 110 ° C or in the block-cold dwell process.
• Bases such as sodium hydroxide solution, potassium hydroxide solution, sodium carbonate, calcium oxide, calcium hydroxide, barium oxide or barium hydroxide are optionally used to adjust the pH during the condensation. If the compounds of group (a) are used in excess in the condensation, a pH in the alkaline range is established due to the basicity of these compounds.
• the condensation is carried out in aqueous solution at a solids content of the solution of 20 to 60% by weight and temperatures of 60 to 100 ° C.
• the water-soluble non-quaternized condensation products have a viscosity of at least 500 mPas in 45% aqueous solution at a temperature of 20 ° C.
• Particularly effective condensation products are obtained by condensing piperazine with epichlorohydrin or ethylene chloride and then quaternizing with benzyl chloride. Such products are known.
• quaternization of the condensation products from components (a) and (b) 0.15 is used per equivalent of nitrogen in component (a) to 1.0, preferably 0.4 to 0.75 mol of benzyl chloride.
• the quaternization is preferably carried out in an aqueous medium at temperatures from 60 to 100.degree. Both the condensation reaction and the quaternization of the condensation products can be carried out at temperatures above 100 ° C. under pressure. This results in shorter response times.
• the aqueous solutions of the quaternized or partially quaternized condensation products can be used directly for the treatment of the chlorinated and optionally colored wool.
• the treatment of the wool with the quaternary products can be carried out batchwise in a dyeing machine or continuously in a lisseuse.
• the temperature of the polymer solution is up to 100 ° C. and is preferably in the range from 30 to 50 ° C.
• the pH of the resin solution is adjusted to 4 to 10. It is preferred to be in the pH range of to work to 8. Based on the weight of the wave, 0.5 to 3, preferably 0.7 to 1.5% by weight of the quaternary condensation products described above are applied.
• the chlorinated, optionally colored and provided with a resin coating from a quaternary product is optionally rinsed and optionally equipped with soft-grip agents.
• the treatment of the wool with plasticizers can - provided that the plasticizer is contractual with the quaternary condensation product - also be carried out together with the polymer treatment.
• the wool treated in this way is dewatered mechanically, for example by squeezing, and dried in the temperature range from 80 to 150 ° C.
• the quaternary products to be used according to the invention only lead to good felt-proofing of the wool if the chlorination step is carried out at pH below 4.
• the chlorination step is carried out at pH below 4.
• only about half the amount of polymer required for the same effect in the Hercosett process is required by the process according to the invention.
• the wool can not only be made felt-proof, but can also be dyed within this process sequence. The dyeing always follows after the chlorination of the wool and before the application of the cationic polycondensate to the wool.
• the parts given in the examples are parts by weight, the percentages relate to the weight of the wool and, in the case of the polymeric products, to the anhydrous active substance.
• the viscosities of the condensation products were measured using a rotary viscometer (Haake, RV 3),
• 332 parts of the condensation product were mixed with 7130 parts of 50% sodium hydroxide solution and 248 parts of propanediol and 252 parts of benzyl chloride were added at 50 to 70 ° C. in the course of 40 minutes. After 5.5 hours at 70 to 80 ° C, the benzylation was complete. It was diluted with 784 parts of water to an active ingredient content of 22%.
• the clear, stable solution of the condensation product 3 had a pH of 4.4, a viscosity of 60 mPas (20 ° C.) and a chloride content of 1.6 mmol / g. The drug content was 22%.
• the tapes were then rinsed in a third bath with water heated to a temperature of 40 ° C and then dried in the dryer at a temperature of 95 ° C to a residual moisture content of 10%.
• the wool was then evened out on a needle bar section and formed into wraps.
• the wool pretreated in this way was then dyed in a dyeing apparatus with an aqueous liquor which contained 3% of the blue acid dye of Color Index No. 15707.
• the wool comb drawstrings were then continuously in a washing machine at a speed of 16 m / min in a bath with water, which had a temperature of 20 ° C, rinsed and continuously passed through a second bath containing a 5% aqueous solution of the condensation product 1, a pH of 7.5 and had a temperature of 40 ° C.
• the polymer coating was 1%.
• the wool sliver belts were then rinsed in a third bath with water at a temperature of 40 ° C. and dried in a dryer at 95 ° C. to a residual moisture content of 10%.
• Wool sliver belts as in Example 1 are treated in a continuously operating system with 8 baths, plus squeezing units and a dryer at only 8 m / min.
• the wool was treated in the first bath at 15.degree. C. with sodium hypochlorite corresponding to an application amount of 1.8% active chlorine and sulfuric acid at pH 1.5, and likewise in Example 1, the antichlorine treatment with sodium sulfite followed in the second bath and then Rinse bath at 40 ° C.
• the sliver is spun and knitted samples are produced from the yarn in accordance with the IWS specification TM 192, which are tested for felt resistance and color fastness.
• the results and the requirements of the IWS are also shown in Table 1.
• Comparative Example 1 dyed and finished fabric antifelting does not have the fastness properties that requires the IWS for W ollsiegel this, a post-treatment would be required.
• the goods dyed according to Example 1 meet the requirements that the IWS places on the wash and sweat fastness of dyeings.
• Woolen drawstring tapes with a thickness of 25 g / m and a wool fineness of 20 microns were produced according to the "Kroy-Deepin method" (cf. Wool Science Review 55, 35 (1978)) at a pH of 1.2 and a temperature chlorinated at 15 ° C. The active chlorine absorption of the wool was 1.5%.
• the wool sliver ribbons were then dyed with an aqueous liquor containing 4.5% of the 1: 2 chlorine complex of the black acid dye C.I. 15711 included. The temperature during the dyeing was 100 ° C., the dyeing time was 60 minutes. After dyeing was completed, cold water was added to the dye bath until the temperature of the bath had cooled to 40 ° C. Then 1.2% of the condensation product 2 was added and the combing belts were treated at a pH of 8 for 15 minutes in this liquor. The goods were then rinsed, dried, processed into knitting samples and checked. The results are shown in Table 2.
• Example 2 The procedure is initially as given in Example 2, the wool sliver is chlorinated and then 2% of a polyamidoamine resin crosslinked with epichlorohydrin is applied by the process of the prior art. The wool sliver is then - as in Example 2 - dyed with an aqueous liquor which contains 4.5% of the 1: 2 chromium complex of the black acid dye C.I. 15711 included. The ridge was then dried after rinsing and passing through a lisseuse, knitted into knitting samples and checked. The results are shown in Table 2.
• the chlorine donor was added in portions Following the chlorination was dechlorinated with sodium sulfite and then rinsed The batch was then divided.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Coloring (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

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• 1984
  • 1984-05-10 DE DE19843417239 patent/DE3417239A1/de not_active Withdrawn
• 1985
  • 1985-04-22 DE DE8585104857T patent/DE3575002D1/de not_active Expired - Lifetime
  • 1985-04-22 EP EP85104857A patent/EP0160878B1/fr not_active Expired
  • 1985-05-01 US US06/729,221 patent/US4592757A/en not_active Expired - Lifetime
  • 1985-05-08 JP JP60096168A patent/JPS60239564A/ja active Pending
  • 1985-05-09 ZA ZA853502A patent/ZA853502B/xx unknown
  • 1985-05-09 AU AU42252/85A patent/AU579630B2/en not_active Expired

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