EP0699247B1 - Procede de pretraitement en continu d'un materiau textile contenant de la cellulose - Google Patents

Procede de pretraitement en continu d'un materiau textile contenant de la cellulose Download PDF

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Publication number
EP0699247B1
EP0699247B1 EP94917611A EP94917611A EP0699247B1 EP 0699247 B1 EP0699247 B1 EP 0699247B1 EP 94917611 A EP94917611 A EP 94917611A EP 94917611 A EP94917611 A EP 94917611A EP 0699247 B1 EP0699247 B1 EP 0699247B1
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Prior art keywords
acid
weight
mixture
textile material
customary
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German (de)
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EP0699247A1 (fr
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Heinz-Dieter Angstmann
Dieter Bassing
Peter Freyberg
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BASF SE
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BASF SE
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
    • D06L1/14—De-sizing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents

Definitions

  • a three-stage pretreatment is usually carried out on fabrics, consisting of desizing, decoction and bleaching.
  • Each of these three treatment steps are divided into one impregnation step, in which the treatment liquor on the textile goods is applied, a dwell stage, in which the on the textile applied chemicals and auxiliaries can react, and a washout stage.
  • the present pre-treatment process can be much more efficient be worked.
  • Pre-cleaning is sufficient, in which the treatment liquor (impregnation liquor), the specific Contains additives, applied to the textile and immediately afterwards - without dwell time - is washed out, as well as directly following the bleaching process in order to achieve good bleaching results with great care for the goods to reach.
  • Particularly good bleaching results result especially when impregnated with the bleaching liquor is working with an increased fleet order.
  • Such good results largely those of the usual three-stage Pretreatment was not expected.
  • the natural product cotton contains the main component cellulose still up to 10 wt .-% natural impurities, each by origin, provenance, growing conditions and maturity can fluctuate significantly during harvest.
  • Such natural Accompanying substances in cotton are in particular proteins, pectin, Wax esters and wax alcohols, hemicellulose, lignin substances, Resins, colored pigments, organic acids and mineral salts with the cations of Ca, Mg, Na, K, Fe, Mn, Cu and Al and the anions Carbonate, phosphate, sulfate, chloride and silicate.
  • the warp threads have to be enveloping through them Protect polymer films from mechanical damage.
  • the sizes applied to it of various constitution and solubility e.g. starch, starch ether, starch ester, Carboxymethyl starch, carboxylmethyl cellulose, methyl cellulose, Polyvinyl alcohol, polyacrylates
  • sizing aids e.g. animal fats, some emulsified, synthetic waxes, paraffins
  • the task of pretreatment is to prepare the textile goods in such a way that disturbing accompanying substances as far as possible and above all be removed evenly without the exposed clean Cotton, the ⁇ -cellulose, is damaged too much. Because of the difference of these substances both in the physical Appearance as well as in the chemical already mentioned Constitution cannot do this through a simple washout process success.
  • Knitwear made by knitting or knitting is usually not arbitrated and therefore needs - in difference to the fabric - no desizing step.
  • the object of the present invention was to work more efficiently to achieve better bleaching effects than with a pretreatment According to the state of the art.
  • the dispersants added according to the invention are in the Location, insoluble compounds of inorganic and organic nature, e.g. also insoluble hydroxides or carbonates of alkaline earth or Heavy metals and insoluble salts of these cations with e.g. Pectinate, fatty acids or sizes, disperse and also thereby precipitates in addition to the improved pre-cleaning effect and to prevent roller coverings.
  • complexing agents for multivalued Metal ions are also alkaline earth and heavy metal ions from the Cotton removed by complexing, precipitations of insoluble ones This prevents salting of these cations and thus ideal Requirements for a subsequent, problem-free peroxide bleaching and the later coloring created.
  • the textile is so good freed from disturbing accompanying substances that the following Peroxide bleaching (b) behaves much more favorably than without additives according to the invention, even cheaper than after an additional alkaline decoction before peroxide bleaching.
  • Peeling removal is a question of bleaching time, alkali and Peroxide amount.
  • Good shell removal usually requires one alkaline decoction with 30 to 60 g / l caustic soda and a conventional one Wetting agent or detergent at 100 ° C for 2 min to 30 min after normal desizing and then peroxide bleaching with 30 to 50 ml / l hydrogen peroxide (35% by weight) and 5 up to 10 g / l caustic soda, in addition to the usual bleach stabilizers and Wetting agents or detergents.
  • a product condition results free of impurities that disturb peroxide bleaching, a peroxide bleach with significantly higher amounts Caustic soda with excellent bleaching results, without damage to the goods and free of shells.
  • the bleach can also be used high amounts of peroxide and with longer bleaching times (up to 60 min) without significant damage to the goods can be carried out. Because of the excellent Stability of the peroxide and its optimal use for bleaching the colored accompanying fabrics of cotton (and not huge losses due to consumption for oxidation existing, further contamination of the goods) can affect the quantity of peroxide but significantly reduced without much loss of bleaching effect are, this is a further advantage of the invention Procedure.
  • DE-A 27 35 816 (1) describes a process for desizing and bleaching cellulose containing or consisting thereof Textile material through simultaneous enzymatic desizing and Pretreatment with a solution of sodium dithionite ("hydrosulfite") and a conventional heavy metal complexing agent with addition a buffer system at pH 6 to 9 and subsequent more common Peroxide bleaching in the presence of little or no silicate as Stabilizer described.
  • a solution of sodium dithionite sodium dithionite
  • a conventional heavy metal complexing agent with addition a buffer system at pH 6 to 9 and subsequent more common Peroxide bleaching in the presence of little or no silicate as Stabilizer described.
  • Sodium dithionite acts as a reducing agent and requires the use of a buffer system because the oxidation of dithionite produces sulphurous acid in addition to sulfate anions and the pH value drops as a result.
  • This acidic running of the treatment bath must be avoided by buffering in order to prevent the dithionite from self-decomposing, from leaving the pH range which is optimal for the complexation and from the occurrence of SO 2 odor.
  • the sulfate ions formed during the oxidation of the dithionite end up in the wastewater, pollute it and increase - as is known - the corrosion of concrete sewers and pipes, also recognizable by the limit values for sulfate ions in the wastewater set by the environmental authorities.
  • the method according to the invention is no reducing agent and none Buffer system, has none of the disadvantages mentioned there.
  • the Feedstocks can be handled and used as solutions without any problems become.
  • the complexing agents that may be used are generally complexing agents for polyvalent metal ions applicable, not only the usual heavy metal complexing agents. Heavy metal ions should be removed as far as possible, in addition but also alkaline earth metal ions or aluminum ions. Thanks to the dispersing effect of the dispersants to be used are also insoluble compounds of multivalent Removed metal ions from the textile, not just soluble cations.
  • DE-B 28 14 354 (2) describes a process for desizing of cellulose containing starch or containing it existing textiles using a combination of peroxydisulfate and an oxidation-resistant dispersant for the water-insoluble resulting from the oxidative degradation of the size Starch molecule fragments described.
  • the procedure is preferably coupled with the alkaline decoction and at pH values between 12 and 14 and at a temperature of approx. 100 ° C for at least 1 minute.
  • relatively small amounts 0.1 to 3 g per Liter of desizing liquor
  • the oxidizer does not differentiate between Starch and cellulose, both of which are known to be chemically very similar.
  • the dispersants used in the process should disperse the oxidative fission products of the starch size and must be stable to oxidation.
  • EP-B 101 567 (3) relates to the production of aqueous concentrated homogeneous 25 to 60 wt .-%, a pH of 3 to 7 containing solutions of mixtures, preferably in a weight ratio 7: 1 to 1: 7, from homopolymers of acrylic acid and / or copolymers of acrylic acid with up to 50% by weight of maleic acid and / or maleic anhydride and K values from 10 to 25 and Nitrilotriacetic acid, polyaminopolycarboxylic acids, polyaminopolyphosphonic acids and / or hydroxyalkane polyphosphonic acids, the dissolved components completely or at least 20% in shape the potassium salts and in the latter case the rest in the form of the free ones Acid present.
  • Their use in pretreatment or dye baths for cellulose-containing or containing cellulose Textile as a combined dispersant and metal ion complexing agent is called.
  • a usability for pre-cleaning or desizing baths is not mentioned.
  • DE-A 42 08 106 discloses a mixture of citric acid, an alkali metal or ammonium salt of a sugar carboxylic acid and optionally a small amount of mineral acid as Aid for finishing treatments of textile fiber material to use.
  • EP-A 055 975 describes a continuous process for desizing cellulosic textile material, in which the textile material is treated with a mixture of anionic surfactants, inorganic oxidizing agents and a siloxaneoxyalkylene copolymer, a complexing agent being additionally used. After this treatment, the textile material is bleached with aqueous H 2 O 2 .
  • the sophisticated pre-cleaning (a) of cellulose-containing or textile made of cellulose can be added continuously Fleet ratios of approx. 1: 1 or, in the case of knitwear, also liquor ratios from 1: 5 to 1:20.
  • the treatment fleet during diving times (contact times) of the textile goods usually from 5 to 30 seconds, in particular 10 to 20 seconds, applied with the treatment bath can have a temperature between room temperature (20 ° C) and 70 ° C.
  • the treatment liquor is used loaded goods on a fleet intake of approx. 100% (corresponding to a liquor ratio of approx.
  • washing out the treated textile goods usually takes place hot (at temperatures between 80 to 100 ° C) and then cold, usually in several wash baths in a row.
  • the pH of the treatment liquor at (a) should be between 5 and 11, preferably between 6 and 10.
  • the pre-cleaning step according to the invention is often sufficient (a), consisting of the impregnation of the textile material with the treatment fleet and immediate subsequent Wash out to get good bleaching results. Is the Desizing effect is not optimal, can be after the impregnation step granted a longer dwell time and only then washed out become.
  • Bacterial, malt or pancreatic amylase are usually used as enzymes used, most enzyme types at low temperatures (up to 70 ° C), special types even at higher temperatures (70 ° C to 120 ° C) are effective.
  • the amounts of enzyme used are usually between 1 to 8 g / l.
  • Develop optimal activity these amylases mostly in a certain pH range between the pH values 5 to 11, mostly between 6 and 8.
  • Residence and reaction times up to 24 hours applied at room temperature or only 1 to 2 minutes at 100 ° C.
  • the desizing liquor usually contains, if necessary, in addition to the enzyme used, wetting agents and detergents (surfactants) as well as other common aids, such as common salt and minor Amounts of calcium salts (both for enzyme activation) that either added separately or automatically introduced via the water hardness become.
  • wetting agents and detergents surfactants
  • other common aids such as common salt and minor Amounts of calcium salts (both for enzyme activation) that either added separately or automatically introduced via the water hardness become.
  • the peroxide bleaching (b) takes place after the preliminary cleaning (a) usually continuously in fleet conditions Textile to liquor from 1: 0.6 to 1: 1.7, preferably 1: 1 to 1: 1.5 (corresponding to fleet uptake of 60% by weight, based on the textile goods, up to 170 wt .-%, preferably 100 wt .-% to 150% by weight).
  • Such high fleet intakes are only possible with new, modern application techniques (e.g.
  • Peroxide bleaching is usually carried out at temperatures between 70 to 130 ° C, preferably 98 ° to 120 ° C, for 2 to 60 minutes, preferably 10 to 30 minutes.
  • aqueous solution constituents of the bleaching liquor are used, and caustic soda surfactants and other customary auxiliaries, such as conventional inorganic and organic stabilizers - which should ensure sufficient stability of the hydrogen peroxide under bleaching conditions and optionally dispersants, which are intended to prevent precipitation of insoluble compounds and roller coverings.
  • the amounts of peroxide and caustic soda to be used depend on the textile goods, the chosen process and the desired bleaching result, namely whether colored goods (textile goods that are to be dyed or printed) or a full white (for white goods that are not dyed or printed) are aimed for .
  • Full white articles require a higher degree of whiteness and total freedom from shells.
  • the amounts of peroxide used are generally between 10 to 60 g / l H 2 O 2 (35% by weight), preferably between 20 to 50 g / l, the amounts of caustic soda between 5 and 50 g / l, preferably between 10 and 25 g / l.
  • the preferred process sequence in the bleaching step (b) is the continuous one Working method in which the textile goods are in a wide web after the pre-cleaning (a) and the subsequent washing or rinsing with the bleaching liquor impregnated and in a steamer at 98 to 120 ° C for 10 to Bleached for 30 minutes and then intensely hot (several times with 95 ° C) and washed out cold in the usual way.
  • Suitable complexing agents (ii) for polyvalent metal ions Amino polycarboxylic acids, hydroxyalkyl and amino phosphonic acids, Poly (hydroxy) carboxylic acids and inorganic polymetaphosphates, as free acids or in neutralized form as alkali or Ammonium salts. Examples include:
  • Nitrilotriacetic acid ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, ⁇ -hydroxyethylaminodiacetic acid, N, N-di- ( ⁇ -hydroxyethyl) glycine, 1,3-propylenediamine tetraacetic acid, 1,2-propylenediamine tetraacetic acid, N- ⁇ -hydroxyethylethylenediaminetriacetic acid, diamine tetraacetic acid, di ( ⁇ -aminoethyl) ether tetraacetic acid, glycol bis ( ⁇ -aminoethyl) ether tetraacetic acid, cyclohexylene-1,2-diamine tetraacetic acid, ⁇ -alanine diacetic acid, L-aspartic diacetic acid, isoserine diacetic acid, L-glutamine diacetic acid, nitrilropionic acid, nitrilropionic
  • Preferred complexing agents are aminopolycarboxylic acids, phosphonic acids and polyhydroxycarboxylic acids, especially nitrilotriacetic acid, Diethylenetriamine-pentamethylene-phosphonic acid and Poly-a-hydroxyacrylic acid.
  • the complexing agents for polyvalent metal ions should be as possible sequestering properties for divalent or trivalent ions of the metals Ca, Mg, Ba, Sr, Mn, Co, Cu, Fe, Ni, Co, Zn, Cd and Al, especially for ions of the metals Ca, Mg, Fe, Cu, Mn and Zn and Al, which are found more often on raw cotton, have.
  • Suitable dispersants (i) are water-soluble polymers, the monoethylenically unsaturated mono- and / or dicarboxylic acid units in amounts ⁇ 40% by weight, preferably ⁇ 60% by weight, in particular ⁇ 80 wt .-%, copolymerized and contain K values between 8 and 80, preferably between 10 and 40.
  • the K values are an approximate measure of the molecular weight or degree of polymerization and according to H. Fikentscher, Cellulosechemie 13, P. 60 (1932) in 2 wt .-% solutions in dimethylformamide at 25 ° C. certainly.
  • Suitable monoethylenically unsaturated monocarboxylic acids are those which contain 3 to 10 carbon atoms in the molecule. Be mentioned here especially acrylic acid or methacrylic acid; however one can also ⁇ -hydroxyacrylic acid, vinyl acetic acid, allylacetic acid, propylidene acetic acid, Ethylidene propionic acid, dimethylacrylic acid or C2 to C6 alkyl half esters of dicarboxylic acids, especially maleic acid, deploy.
  • suitable monoethylenically unsaturated Dicarboxylic acids can be used in the polymers e.g. Maleic acid, Itaconic acid, glutaconic acid, methylene malonic acid and citraconic acid or their anhydrides, e.g. Maleic anhydride may be included. Mixtures of unsaturated mono- or dicarboxylic acids or their anhydrides can be used.
  • the polymers may contain 60 60% by weight, preferably ⁇ 40% by weight, in particular ⁇ 20% by weight, of carboxyl-free, in particular monoethylenically unsaturated, monomers which can be copolymerized with the monomers bearing carboxyl groups.
  • Examples include acrylamide, methacrylamide, (meth) acrylonitrile, acrylamidosulfonic acid, vinylsulfonic acid, allylsulfonic acid, vinylphosphonic acid, allylphosphonic acid, vinyl acetate, vinyl propionate, allyl alcohol, acrolein, hydroxyethyl or hydroxypropyl (meth) acrylate, (meth) acrylic acid methyl or ethyl styrene, or methyl ester, C 2 - to C 4 -olefins, alkyl vinyl ethers with alkyl radicals with 1 to 4 carbon atoms and mixtures thereof.
  • acrylamide, methacrylamide, vinyl acetate, acrylonitrile, hydroxyethyl and hydroxypropyl acrylate, methyl vinyl ether and diisobutylene are particularly suitable.
  • These comonomers can have a decisive influence on the solubility of the dispersants (i) in water or in dilute alkalis.
  • the dispersant (i) is exposed to water-soluble copolymers 40 to 100% by weight, preferably 60 to 100% by weight, acrylic acid, methacrylic acid, ⁇ -hydroxyacrylic acid or maleic acid or a mixture thereof and 0 to 60% by weight, preferably 0 to 40% by weight of copolymerizable monomers, which are preferably free of carboxyl groups, with a K value of 8 to 80.
  • Homopolymers in particular give particularly good results acrylic acid, methacrylic acid and maleic acid or Maleic anhydride and copolymers of acrylic acid and methacrylic acid, for example in a weight ratio of 50:50 to 95: 5, and copolymers of acrylic acid and maleic acid, for example in Weight ratio 20:80 to 80:20.
  • the water-soluble polymers have been based of monomers containing carboxyl groups as particularly favorable Dispersants (i) proved in which the carboxyl groups in Polymer present in the form of the sodium salts.
  • the Lithium, potassium, ammonium and substituted ammonium salts e.g. Methyl, ethyl, dimethyl, diethyl, trimethyl, triethyl, Diethanol, triethanol or triisopropanol ammonium salts can be used.
  • Textiles made from cellulose are used for the process according to the invention and mixtures thereof with other native or synthetic Fibers, e.g. Linen, polyester or polyamide. Most important Types of fibers are pure cotton and blends of cotton and polyester.
  • the object of the invention a more rational, economical and to develop an ecologically improved pre-treatment process, is thus by adding dispersants and optionally Complexing agents for multivalent metal ions in quantities of 1% by weight to 10% by weight, preferably 2 to 6% by weight, based on the textile weight, in the pre-cleaning fleet and immediately following alkaline peroxide bleach dissolved.
  • a twill fabric made of raw cotton of 310 g / m 2 , finished with water-soluble starch derivatives, was impregnated with a liquor of 70 ° C and a liquor absorption of approx. 100% (corresponding to a liquor ratio of approx. 1: 1) (immersion time contact time of the fabric with the fleet was 20 seconds) 5 g / l 10-fold ethoxylated nonylphenyl xg / l Additives according to table 1 contained and had been adjusted to a pH of 8.5, then immediately washed twice hot ( ⁇ 95 ° C) and twice cold and then peroxide bleaching was carried out in the steamer at 100 ° C for 15 minutes.
  • the bleaching liquor applied with a liquor absorption of 125% had the following composition: 40 g / l Hydrogen peroxide (35% by weight) 15 g / l caustic soda 1 g / l 10-fold ethoxylated nonylphenol 5 g / l commercial bleach stabilizer (Mg-containing stabilizer based on phosphonic acid and polyacrylic acid)
  • Example 1a was in Example 1a with the addition of product mixture A in the Pre-cleaning liquor worked, the subsequent peroxide bleaching but with only 5 g / l caustic soda instead of 15 g / l caustic soda, the peeling distance was insufficient and the whiteness according to Berger was only 80.
  • the body tissue as in example la-d was impregnated for desizing with a liquor of 60 ° C. and a liquor absorption of approx. 100% (corresponding to a liquor ratio of approx. 1: 1) 4 g / l Bacteria ⁇ amalysis 5 g / l 10-fold ethoxylated nonylphenol 3 g / l Table salt contained, made with water of approx. 10 ° German hardness and adjusted to a pH of approx.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (8)

  1. Procédé de prétraitement en continu de matière textile contenant de la cellulose, consistant en
    (a) une étape de prélavage pour laquelle le bain de traitement utilisé contient des tensio-actifs usuels et d'autres agents auxiliaires usuels ainsi que des enzymes usuelles en tant qu'agent de désencollage, et présente un pH de 5 à 11, et après lavage et rinçage,
    (b) une étape de blanchiment à l'aide de peroxyde d'hydrogène dans un bain aqueux alcalin contenant des tensio-actifs usuels et d'autres agents auxiliaires usuels,
    caractérisé en ce que le bain de traitement de (a) contient en outre 1-10% en poids, par rapport au poids de la matière textile,
    (i) d'un polymère soluble dans l'eau construit à partir de 40-100% en poids d'acides mono- ou dicarboxyliques à insaturation monoéthylénique ou de leurs anhydrides ou d'un mélange de ceux-ci et présentant une valeur de K de 8-80, en tant que dispersant.
  2. Procédé selon la revendication 1, caractérisé en ce que le bain de traitement de (a) contient en outre 1-10% en poids, par rapport au poids de matière textile, d'un mélange (iii) des composants (i) et
    (ii) d'un acide aminopolycarboxylique, d'un acide hydroxy-alkyl- ou amino-phosphonique, d'un acide polycarboxylique, ou d'un acide polyhydroxycarboxylique ou d'un mélange de ceux-ci, en tant qu'agent complexant pour des ions métalliques polyvalents
    dans un rapport en poids de 10:1 à 1:10.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le bain de traitement (a) contient les composants supplémentaires (i) ou le mélange (iii) à base de (i) et de (ii) en une quantité de 2-6% en poids, par rapport au poids de la matière textile.
  4. Procédé selon les revendications 1 à 3, caractérisé en ce que l'on utilise en tant que dispersant (i) un polymère soluble dans l'eau construit à partir de 40-100% en poids d'acide acrylique, d'acide méthacrylique, d'acide α-hydroxyacrylique ou d'acide maléique ou d'un mélange de ceux-ci, et présentant une valeur de K de 8-80.
  5. Procédé selon les revendications 1 à 4, caractérisé en ce que l'on utilise en tant que complexant (ii) l'acide nitrilotriacétique, l'acide diéthylènetriaminepentaméthylphosphonique ou l'acide poly-α-hydroxyacrylique.
  6. Procédé selon les revendications 1 à 5, caractérisé en ce que l'on effectue l'étape de prélavage (a) à des températures de 20-100°C.
  7. Procédé selon les revendications 1 à 6, caractérisé en ce que l'on effectue l'étape de blanchiment (b) à des températures de 70-130°C.
  8. Procédé selon les revendications 1 à 7, caractérisé en ce que l'on effectue l'étape de blanchiment avec un rapport dans le bain matière textile : bain de 1:0,6 à 1:1,7.
EP94917611A 1993-05-21 1994-05-10 Procede de pretraitement en continu d'un materiau textile contenant de la cellulose Expired - Lifetime EP0699247B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4317060 1993-05-21
DE4317060A DE4317060A1 (de) 1993-05-21 1993-05-21 Verfahren zur kontinuierlichen Vorbehandlung von cellulosehaltigem Textilgut
PCT/EP1994/001507 WO1994028228A1 (fr) 1993-05-21 1994-05-10 Procede de pretraitement en continu d'un materiau textile contenant de la cellulose

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Publication Number Publication Date
EP0699247A1 EP0699247A1 (fr) 1996-03-06
EP0699247B1 true EP0699247B1 (fr) 1999-04-21

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US (1) US5820636A (fr)
EP (1) EP0699247B1 (fr)
AT (1) ATE179231T1 (fr)
DE (2) DE4317060A1 (fr)
DK (1) DK0699247T3 (fr)
ES (1) ES2130424T3 (fr)
WO (1) WO1994028228A1 (fr)

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DE10201690A1 (de) * 2002-01-17 2003-07-31 Basf Ag Verfahren zur Wiedergewinnung von Schlichten durch eine Kombination von Entschlichtung mit Dispergiermitteln/Komplexbildnern und anschließendem Recycling
DE10301535A1 (de) * 2003-01-17 2004-07-29 Cht R. Beitlich Gmbh Verfahren zur Veredlung von textilem Fasermaterial
JP5122821B2 (ja) * 2003-11-28 2013-01-16 イーストマン ケミカル カンパニー セルロースインターポリマー及び酸化方法
US20070004849A1 (en) * 2004-09-24 2007-01-04 Karl Siemensmeyer Method for the preliminary treatment of cellulose-containing textile
EP1876285A1 (fr) * 2006-07-05 2008-01-09 DyStar Textilfarben GmbH & Co. Deutschland KG Déminéralisation et désencollage de matériaux textiles en une seule operation
WO2013178875A1 (fr) 2012-05-29 2013-12-05 Kemira Oyj Procédé de traitement d'un matériau fibreux et nouvelle composition
CN102926215A (zh) * 2012-11-28 2013-02-13 华纺股份有限公司 涤棉混纺织物前处理方法
AT515152B1 (de) 2013-11-26 2015-12-15 Chemiefaser Lenzing Ag Verfahren zum Vorbehandeln von rückgewonnenen Baumwollfasern zur Verwendung bei der Herstellung von Formkörpern aus regenerierter Cellulose
CN103993485A (zh) * 2014-04-23 2014-08-20 江苏华艺服饰有限公司 一种适用于羊毛织物退浆剂

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DE2735816C3 (de) * 1977-08-09 1981-08-13 Basf Ag, 6700 Ludwigshafen Verfahren zum Entschlichten und Bleichen von Textilgut
US4426203A (en) * 1981-01-06 1984-01-17 Ciba-Geigy Corporation Stable anhydrous textile assistant
DE3227915A1 (de) * 1982-07-27 1984-02-02 Basf Ag, 6700 Ludwigshafen Waessrige konzentrierte loesungen von mischungen aus organischen komplexbildnern und dispergiermitteln auf basis von polymeren aliphatischen carbonsaeuren
US4539353A (en) * 1983-01-25 1985-09-03 Ciba-Geigy Corporation Aqueous composition of polymaleic acid, surfactants and complexing agents, and its preparation and use as an assistant in the pretreatment of cellulose-containing fibre materials
DE4208106B4 (de) * 1991-03-20 2006-10-05 Clariant Finance (Bvi) Ltd. Vorbehandlung von Textilfasermaterial

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DK0699247T3 (da) 1999-10-25
ES2130424T3 (es) 1999-07-01
DE59408145D1 (de) 1999-05-27
WO1994028228A1 (fr) 1994-12-08
EP0699247A1 (fr) 1996-03-06
US5820636A (en) 1998-10-13
DE4317060A1 (de) 1994-11-24
ATE179231T1 (de) 1999-05-15

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