EP3115502B1 - Fibres de cellulose hydrophobes lavables et procede destine d'hydrophobisation de fibres de cellulose lavables - Google Patents

Fibres de cellulose hydrophobes lavables et procede destine d'hydrophobisation de fibres de cellulose lavables Download PDF

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Publication number
EP3115502B1
EP3115502B1 EP15405043.9A EP15405043A EP3115502B1 EP 3115502 B1 EP3115502 B1 EP 3115502B1 EP 15405043 A EP15405043 A EP 15405043A EP 3115502 B1 EP3115502 B1 EP 3115502B1
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Prior art keywords
cellulose fibers
fibers
cellulose
hydrophobizing
hydrophobic
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EP15405043.9A
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German (de)
English (en)
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EP3115502A1 (fr
Inventor
Thomas Prof. Dr. Bechtold
Josef Glaser
Werner Jun. Jochum
Roger Kargel
Gerhard Langer
Markus Dr. Müller
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Spinnerei Feldkirch GmbH
Mueller Markus
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Spinnerei Feldkirch GmbH
Mueller Markus
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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
    • D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
    • 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
    • D06M13/08—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with halogenated hydrocarbons
    • 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
    • D06M13/10—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 oxygen
    • D06M13/144—Alcohols; Metal alcoholates
    • 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
    • D06M13/10—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 oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
    • 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
    • D06M13/325—Amines
    • 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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • 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
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/10—Repellency against liquids
    • D06M2200/12—Hydrophobic properties

Definitions

  • the present invention relates to a process for the wash-resistant hydrophobing or to produce a wash-resistant hydrophobing of cellulose fibers and to dyeable, wash-resistant, hydrophobicized cellulose fibers.
  • Cellulose fibers in particular so-called man-made cellulose fibers, such as e.g. Viscose fibers, modal fibers, cupro and lyocell fibers, consist of the hydrophilic polymer cellulose.
  • This native polymer has a high number of hydroxyl groups in its polymer chain, which form a correspondingly high number of polar centers. Due to these polar centers, the polymer chains have a low contact angle with respect to water, so that the cellulose fibers are very readily wettable with water.
  • This property is preferably used in many applications of cellulose fibers, because products made of such fibers have high water absorbency and thus a high water absorption capacity. This is additionally supported by the porosity of the fiber material, which has high water accessibility, since liquid water and also water vapor can very easily penetrate into an untreated cellulose fiber.
  • cellulose fibers Due to the ability to absorb and bind water vapor by sorption, man-made cellulose fibers also have a high moisture absorption capacity, which is sometimes desirable for a comfortable fit of clothing made of these fibers.
  • Usual moisture storage capacities of cellulose fibers are between 10% -Gew. and 15% weight. of dry fiber weight.
  • the moisture storage capacity is at a hydrophobic Synthetic fiber, eg a fiber made of polypropylene or polyester, under normal climatic conditions at about 1% wt. of fiber weight.
  • a cellulose fiber by swelling and filling of the pores very quickly absorb more liquid, with a water storage after centrifuging the excess and therefore removable water in the range between 60% -Gew. and 100% -gew. the weight of the material lies.
  • hydrophobicizing cellulose fibers Various methods are known from the prior art for hydrophobicizing cellulose fibers.
  • the hydrophilic cellulose polymer can be converted into a hydrophobic polymer.
  • This modification can take place, for example, by acetylation, which then leads to the known products cellulose diacetate or triacetate, which are synthetic with respect to water and moisture storage capacity Show chemical fibers similar behavior.
  • other positive properties of cellulose products are largely lost.
  • a hydrophobing can take place by incorporation of hydrophobic substances during fiber production or by a post-treatment with hydrophobing agent immediately after fiber production.
  • Typical methods for this are in AT 512 143 A1 and AT 512 144 A1 discloses in which after the fiber production, a hydrophobization treatment of the cellulose fiber takes place.
  • the incorporation and modification of the cellulose sometimes causes a disturbance of the fiber structure, which is usually accompanied by considerable loss of strength of the fibers. Therefore, such hydrophobing methods are usually dispensed with.
  • the hydrophobing of textile products such as fibers, yarns and fabrics can also be carried out in the form of a so-called finishing treatment, which is carried out as a step in textile finishing as part of the equipment.
  • finishing treatment for example, in US 2 411 860 A used a hydrocarbon-based reactive chemical system.
  • treatment with long chain fluorocarbon chemicals is possible.
  • Siloxane-based chemicals can also be used to hydrophobize cellulose fibers and cellulosic textiles.
  • the chemicals used in the dyeing process often lead to a subsequent reduction in the effectiveness of the hydrophobic treatment and thus to a reduction of the originally desired water-repellent effect. Consequently, in the processes known from the prior art, the hydrophobing treatment usually represents the last processing step, since subsequent wet-chemical further processing is only possible with difficulty.
  • the DE 10 2013 209 170 A1 discloses a chemical composition for producing a water-repellent, wash-permanent hydrophobic treatment of textile surfaces, which consists of a combination of silicone polymers and wax and / or fatty acid esters, and preferably additionally aminoplasts. For applying these water repellents exhaust or forced applications are proposed.
  • a method of hydrophobizing textile materials using polysiloxanes is known.
  • the application of the hydrophobizing agent can be carried out by a discontinuous exhaust process.
  • the textile material used is cellulose acetate or viscose.
  • hydrophobic material can be prepared by hydrophobizing yarns of hydrophilic materials such as cellulose.
  • the document also discloses a method of hydrophobizing the yarns. Further is discloses that, instead of the yarns, the fibers can already be rendered hydrophobic in order subsequently to produce yarns thereon.
  • the object of the present invention is therefore to provide an improved process for producing a wash-resistant hydrophobization of cellulose at the production stage of fibers, wherein the cellulose fibers on the one hand after hydrophobing no or only slight color reservation effects and on the other hand after dyeing still sufficiently large water-repellent properties respectively.
  • the fibers thus treated have a sufficiently good dyeability without adversely affecting the water-repellent properties produced by the dyeing.
  • the cellulose fibers treated according to the invention can be dyed without appreciable dye-reserving effects, in particular by customary processes of reactive dye-dyeing.
  • the differences in the dye receptivity can be evaluated by comparative experiments with patterns of hydrophilic fibers and are at a maximum of 20% in the color depth, which is unexpectedly low for a hydrophobically finished product.
  • a thermal fixing of the hydrophobizing agent to the cellulose fibers is additionally carried out after drying. Both drying and fixing by hot air are preferably carried out.
  • the drying of the cellulose fibers is carried out at a temperature of over 100 ° C, in particular at a temperature between 105 ° C and 140 ° C, preferably between 110 ° C and 120 ° C.
  • the temperature during thermal fixing between 110 ° C and 190 ° C, preferably between 130 ° C and 170 ° C, more preferably between 140 ° C and 160 ° C.
  • the time for the thermal fixing may be between 30 seconds and 4 hours. In a preferred embodiment, the time for the thermal fixation between 5 minutes and 2 hours.
  • the cellulose fibers are formed as flock fibers.
  • the applied discontinuous extraction process by immersing the cellulose fibers in an emulsion bath is advantageously suitable as a batch process. Therefore, in a further embodiment of the invention, the cellulose fibers, in particular bundled as fiber bales, can be fed to the exhaust bath.
  • the temperature of the exhaust bath in a further advantageous embodiment of the invention between 20 ° C to 110 ° C, preferably from 30 ° C to 80 ° C, particularly preferred between 40 ° C and 60 ° C.
  • the temperature of the exhaust bath may sometimes depend on the starting material and / or the hydrophobizing agents used.
  • the proportion of the hydrophobizing active substance between 0.1 wt .-% and 10 wt .-%, preferably between 0.2 wt .-%. and 8% by weight, more preferably between 0.3% by weight. and 4% by weight, the total mass of the cellulose fibers to be treated.
  • liquor ratio ie the ratio of the volume of the aqueous emulsion to the total mass of the cellulose fibers to be treated, is again dependent in a further advantageous embodiment of the invention from the starting material and the hydrophobizing agents used between 0.4 l / kg and 40 l / kg, preferably 1 l / kg to 20 l / kg, more preferably 5 l / kg to 15 l / kg.
  • the residence time in the exhaust bath also influences the result of the surface finishing of the fibers. In a further advantageous embodiment of the invention, this is between 0.5 min and 180 min, preferably 20 min and 120 min, more preferably between 60 min and 120 min.
  • the exhaust bath is circulated, pumped and / or stirred during the application of the hydrophobing agent to the cellulose fibers.
  • the cellulose fibers are introduced as packing bales in a container through which the emulsion is pumped through and thereby flows through the fiber bale.
  • agitators for circulating or stirring the Ausziehbades.
  • the circulating, pumping and / or stirring is shear-reduced so that the sometimes very shear-sensitive emulsion is not destroyed.
  • the number of carbon atoms in the hydrophobic chain at least 16, preferably at least 20, most preferably at least 24 carbon atoms.
  • hydrophobing agents which contain derivatives of the long-chain hydrocarbon groups
  • functional groups in the at least one derivative of the long-chain hydrocarbons may be, for example, alcohols, amines or carboxylic acids, carboxylic esters or carboxamides.
  • the hydrocarbon chains may have a linear or branched structure, wherein in a preferred embodiment, the functional group of the derivative is positioned at one end of the linear carbon chain.
  • a branch of the carbon chain is located on the side opposite the functional group of the derivative side of the carbon chain, which may be present as branches, for example, structures analogous to the tert-butyl, iso-propyl or sec-pentyl group ,
  • the functional group of the derivative may also be positioned within the carbon chain and e.g. by altering an originally present double bond of a natural fat or oil.
  • the hydrocarbon chain may also contain unsaturated bonds, with palmitoleyl alcohol, oleyl alcohol or ⁇ -linolenyl alcohol being conceivable as examples.
  • cellulose fibers are in particular so-called man-made Cellulose fibers, in particular viscose fibers, modal fibers and / or lyocell fibers.
  • cellulose fibers are characterized according to a further aspect of the invention in that they have after hydrophobing a dye receptivity of an aqueous medium which is reduced by not more than 20% compared to the dye receptivity of the cellulose fibers before hydrophobing.
  • the complete surface of the so hydrophobized cellulose fibers in comparison to cellulose fibers in products that were not hydrophobic at the manufacturing stage of fibers, but at the manufacturing stage of yarns, fabrics or knitted fabrics a uniform coating or annealing the hydrophobizing agent.
  • analytical techniques e.g. Electron microscopy, a direct distinction of carried out at the different stages of production hydrophobing can be done.
  • the hydrophobized cellulose fibers and textile products derived therefrom are characterized, inter alia, by the fact that the interior of each cellulose fiber is substantially free of Is hydrophobicizing agent. Although the treated fibers are still wettable by water, the water uptake into the fiber interior is greatly delayed compared to untreated fibers.
  • the hydrophobized fibers according to the invention show similar transport properties as hydrophobic synthetic fibers or wool. In contrast, however, they substantially preserve the beneficial climate buffering and wet absorbency of untreated cellulosic fibers.
  • the invention further relates to a textile product, in particular a woven fabric, a knitted fabric, a so-called nonwoven, a yarn or a twisted yarn, which are produced from at least one or more cellulose fibers according to the invention.
  • a textile product in particular a woven fabric, a knitted fabric, a so-called nonwoven, a yarn or a twisted yarn, which are produced from at least one or more cellulose fibers according to the invention.
  • non-wovens or nonwovens of such hydrophobized cellulosic fibers can be used for personal care products such as liners and diapers.
  • micromodal is used as cellulosic fiber material.
  • the raw material is in flake form as fiber bales an extraction bath of an aqueous emulsion containing as a hydrophobing agent, a commercial C6 fluorocarbon product, ie a hydrophobing agent with Fluorocarbons as a hydrophobizing active substance contains, supplied and treated by exhaustion for 2 hours at a Ausziehbadtemperatur of 60 ° C (100).
  • the application rate of the hydrophobizing active substance is 5% by weight of the mass of the product.
  • the liquor ratio is 1: 8, ie the ratio of the volume of the aqueous emulsion to the total mass of the cellulose fibers to be treated is 8 l / kg.
  • the cellulose fibers are dried at 120 ° C (300) and subjected to thermal fixation (400) for 5 minutes by means of hot air at 140 ° C.
  • a yarn with the metric number 100 (100 m / g) is produced by the conventional method of cotton spinning, from which by circular knitting an interlock material is produced. After washing and dyeing the knit fabric with reactive dye, a red functional knitted fabric (material A) is obtained. For comparison, the same material is made from untreated, hydrophilic fibers (material B).
  • the two textiles have the following properties: Material A Material B Water retention (spin value) 31% 38% Moisture absorption (65% relative humidity, 20 ° C) 8.3% 9.3% Water absorption in the water distribution test, washed 5 times 0.0152 g 0.0489 g Water absorption in the water distribution test, washed 15x 0.0222 g 0.0555 g
  • the water retention capacity is given by the ratio of the amount of water absorbed by the sample and after removal of the excess water by centrifuging and the weight of the sample in the normal air-conditioned state, wherein the weight of the remaining amount of water difference of the weight of the sample in the wet state and the weight of the sample in air-conditioned condition.
  • the water absorption was determined by the following water distribution test: 0.1 ml of water is pipetted onto the hydrophobic sample.
  • the pad is a knitted fabric made of absorbent cellulose material.
  • an upper layer is also made of absorbent cellulose material and the wet surface is loaded with a weight for 60 s (area: 26.4 cm 2 , overlay: 250.1 g).
  • the water distribution is then determined by weighing the different parts. When using material A as the middle layer, the water is largely released to the absorbent upper and lower layers.

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

Claims (15)

  1. Procédé, destiné à conférer un caractère hydrophobe résistant au lavage à des fibres de cellulose, comprenant les étapes suivantes, consistant à :
    a. appliquer (100) un agent hydrophobe sur les fibres de cellulose dans l'étape de production de fibres en amont de la teinture, dans un processus d'épuisement discontinu, par immersion des fibres de cellulose dans un bain d'épuisement hors d'une émulsion aqueuse qui contient l'agent hydrophobant, l'agent hydrophobant contenant en tant que substance active à effet hydrophobant au moins l'une des matières suivantes : au moins un dérivé des hydrocarbures à chaîne longue, au moins un dérivé d'alcool gras, au moins un dérivé d'amine grasse, au moins un dérivé d'un acide gras, caractérisé en ce que pour au moins 90 % des molécules de ces derniers respectivement présentes dans la substance active à effet hydrophobant, le nombre des atomes de carbone dans la chaîne hydrophobe est d'au moins 12 atomes de carbone ;
    b. faire évacuer (200) le bain d'épuisement ou retirer les fibres de cellulose hors du bain d'épuisement ;
    c. faire sécher (300) les fibres de cellulose.
  2. Procédé selon la revendication 1, comprenant par ailleurs l'étape de la fixation thermique 400) de l'agent hydrophobant sur les fibres de cellulose, après le séchage (300).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les fibres de cellulose sont conçues sous la forme de fibres floconneuses et/ou en ce que les fibres de cellulose sont alimentées dans le bain d'épuisement sous forme rassemblée en balles de fibres.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le bain d'épuisement présente une température de 20 °C à 110 °C, de préférence de 30 °C à 80 °C, de manière particulièrement préférentielle, comprise entre 40 °C et 60 °C.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la part de la substance active à effet hydrophobant est comprise entre 0,1 % en poids et 10 % en poids, de préférence entre 0,2 % en poids et 8 % en poids, de manière particulièrement préférentielle, entre 0,3 % en poids et 4 % en poids de la masse totale des fibres de cellulose qui doivent être traitées.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que pour l'au moins un dérivé des hydrocarbures à chaîne longue et/ou l'au moins un dérivé d'acide gras et/ou l'au moins un dérivé d'alcool gras et/ou l'au moins un dérivé d'amine grasse, pour au moins 90 % des molécules de ces derniers respectivement présentes dans la substance active à effet hydrophobant, le nombre des atomes de carbone dans la chaîne hydrophobe est d'au moins 16, de préférence d'au moins 20, de manière particulièrement préférentielle, d'au moins 24 atomes de carbone.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le rapport du volume de l'émulsion aqueuse à la masse totale des fibres de cellulose qui doivent être traitées est compris entre 0,4 l/kg et 40 l/kg, de préférence est de 1 l/kg à 20 l/kg, de manière particulièrement préférentielle, de 5 l/kg à 15 l/kg.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le séchage (300) des fibres de cellulose s'effectue à une température d'au moins 100 ° C, notamment comprise entre 105 °C et 140 °C, de préférence entre 110 °C et 120 °C.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la fixation thermique (400) de l'agent hydrophobant sur les fibres de cellulose s'effectue à une température comprise entre 110 °C et 190 °C, de préférence entre 130 °C et 170 °C de manière particulièrement préférentielle, entre 140 °C et 160 °C.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la durée de séjour des fibres de cellulose dans le bain traitant est comprise entre 0,5 minutes et 180 minutes, de préférence, entre 20 minutes et 120 minutes, de manière particulièrement préférentielle, entre 60 minutes et 120 minutes.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que pendant l'application (100) de l'agent hydrophobant sur les fibres de cellulose, le bain d'épuisement est mis en circulation, pompé et/ou brassé, la mise en circulation, le pompage et/ou le brassage ayant lieu avec réduction de la force de cisaillement, de sorte que l'émulsion ne soit pas détruite.
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les fibres de cellulose comportent des fibres de cellulose synthétiques, notamment des fibres de viscose, des fibres de modal et/ou des fibres de lyocell.
  13. Fibres de cellulose, rendues hydrophobes de manière résistant au lavage, d'après un procédé selon l'une quelconque des revendications 1 à 12, après avoir été rendues hydrophobes, les fibres de cellulose présentant un pouvoir absorbant de colorant à partir d'un milieu aqueux qui n'est pas réduit de plus de 20 % en comparaison du pouvoir absorbant de colorant des fibres de cellulose avant qu'on ne leur ait conféré un caractère hydrophobe.
  14. Fibres de cellulose selon la revendication 13, caractérisées en ce que la surface complète de chacune des fibres de cellulose comporte un revêtement régulier de l'agent hydrophobant et/ou en ce que l'intérieur de chacune des fibres de cellulose est sensiblement exempt d'agent hydrophobant.
  15. Produit textile, notamment tissu, tricot, non-tissé, fil ou retors, produit à partir d'au moins une ou plusieurs fibres de cellulose selon l'une quelconque des revendications 13 à 14.
EP15405043.9A 2015-07-06 2015-07-06 Fibres de cellulose hydrophobes lavables et procede destine d'hydrophobisation de fibres de cellulose lavables Active EP3115502B1 (fr)

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CN111646530A (zh) * 2020-06-30 2020-09-11 佛山市南海区里水镇经济促进局 一种有机硅氧烷工业节水剂及其制备方法

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Publication number Priority date Publication date Assignee Title
US20070093162A1 (en) * 2004-10-22 2007-04-26 Holcombe Barry V Fabric and a method of making the fabric

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Publication number Priority date Publication date Assignee Title
US2411860A (en) 1937-12-04 1946-12-03 Heberlein Patent Corp Process for rendering textiles, fibers, and the like water-repellent
BE558039A (fr) * 1953-10-05
AT512143B1 (de) 2011-11-08 2013-12-15 Chemiefaser Lenzing Ag Cellulosefasern mit hydrophoben Eigenschaften und hoher Weichheit und der dazugehörige Herstellungsprozess
AT512144B1 (de) 2011-11-08 2013-12-15 Chemiefaser Lenzing Ag Man-made Collulosefasern mit hydrophoben Eigenschaften
DE102013209170A1 (de) * 2013-05-17 2013-09-12 Cht R. Beitlich Gmbh Wasserabweisende Effekte auf textilen Oberflächen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070093162A1 (en) * 2004-10-22 2007-04-26 Holcombe Barry V Fabric and a method of making the fabric

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