WO2009115217A1 - Matériau non tissé traité antibactérien, avec des fibres bicomposants - Google Patents

Matériau non tissé traité antibactérien, avec des fibres bicomposants Download PDF

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Publication number
WO2009115217A1
WO2009115217A1 PCT/EP2009/001721 EP2009001721W WO2009115217A1 WO 2009115217 A1 WO2009115217 A1 WO 2009115217A1 EP 2009001721 W EP2009001721 W EP 2009001721W WO 2009115217 A1 WO2009115217 A1 WO 2009115217A1
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WO
WIPO (PCT)
Prior art keywords
nonwoven fabric
fabric according
dopant
fibers
bicomponent
Prior art date
Application number
PCT/EP2009/001721
Other languages
German (de)
English (en)
Inventor
Robert Groten
Andreas Eisenhut
Ameur Abdelkader
Günter Schmitt
Judith Haller
Thomas Schindler
Original Assignee
Carl Freudenberg Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from EP08005131A external-priority patent/EP2103724B1/fr
Priority claimed from DE102008015053A external-priority patent/DE102008015053A1/de
Application filed by Carl Freudenberg Kg filed Critical Carl Freudenberg Kg
Publication of WO2009115217A1 publication Critical patent/WO2009115217A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43832—Composite fibres side-by-side
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D01F1/103—Agents inhibiting growth of microorganisms
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43828—Composite fibres sheath-core
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/4383—Composite fibres sea-island
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838—Ultrafine fibres, e.g. microfibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/016—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness

Definitions

  • the invention relates to a nonwoven fabric comprising bicomponent fibers with a fiber body, in which at least one dopant is added to the antimicrobial equipment, wherein the bicomponent fibers are configured as continuous fibers.
  • nonwovens which have an antimicrobial dopant.
  • an antimicrobial substance acts antibacterial, antiviral, antifungal and / or against spores.
  • silver in particular has proven to be a suitable antimicrobial agent.
  • the invention is therefore based on the object to provide a nonwoven, which is characterized by a long-term effective reactivity of the antimicrobial dopant and at the same time is multi-washable at low cost.
  • the aforementioned nonwoven fabric is characterized by bicomponent fibers which are split into elementary fibers, and by a surface density of 1200 to 3250 m 2 / kg.
  • the incorporation of the antimicrobial dopant into the fiber body ensures extremely long-term release of the dopant.
  • the antimicrobial effect is limited to the nonwoven fabric by largely preventing microbial growth in the nonwoven itself.
  • the antimicrobial active substance is not released to a considerable extent on surfaces which are treated with the nonwoven fabric.
  • the dopant is incorporated directly into the fiber body, which creates an antimicrobial effect, especially on the surface of the continuous fibers. The release of the dopant takes place only in very small amounts, it remains largely bound in the nonwoven fabric or in the fiber body.
  • the nonwoven fabric is therefore extremely washable while retaining high reactivity.
  • the bicomponent fibers are split into endless elementary fibers.
  • Bicomponent fibers offer the same basis weight of the nonwoven fabric. Through the surface of the dopant can interact to the outside.
  • the dopant could be homogeneously distributed only in one component of the fiber body.
  • the shell of a core-sheath continuous fiber can be melted to connect with other continuous fibers, without the present in the core dopant is adversely affected.
  • side-by-side bicomponent endless fibers are also used. It is also conceivable to use Iceland-in-the-Sea bicomponent filaments.
  • the dopant could be present in a concentration of at least 100 ppm in the nonwoven fabric. Surprisingly, it has been shown that even such a low concentration of the dopant can develop an antimicrobial action against viruses, spores or bacteria.
  • the dopant could be present in a concentration of at most 500 ppm in the nonwoven fabric.
  • the choice of this concentration has been found to be advantageous to give a dyed nonwoven durable reactivity.
  • the doping is shielded by the coloring, it can still exert its effect to a sufficient extent by the said concentration.
  • the dopant could also be present in a concentration of less or at most 100 ppm in the nonwoven fabric. Surprisingly, it has been shown that Even such a low concentration of the dopant can develop an antimicrobial action against viruses, spores or bacteria.
  • the bicomponent fiber could comprise a component of polyamide or polyethylene and a component of polyethylene terephthalate or polyester.
  • a component of polyamide or polyethylene and a component of polyethylene terephthalate or polyester.
  • the bicomponent fiber could comprise 30% polyamide or polyethylene.
  • the proportion of polyethylene terephthalate or polyester is substantially 70%.
  • the dopant could be homogeneously distributed in the component of the fiber body comprising polyethylene terephthalate or polyester.
  • Polyethylene terephthalate and polyesters have proven to be particularly suitable media for receiving the dopant. Due to the higher mass fraction of the component comprising polyethylene terephthalate or polyester, a more effective volume distribution of the dopant in the nonwoven fabric can be achieved.
  • the bicomponent fiber could be configured as PIE fiber.
  • a relatively coarse bicomponent fiber can be split into very fine elementary fibers with cake-piece-like or circular segment-like cross sections.
  • the dopant could be designed as an element of a subgroup, in particular subgroup Ib of the Periodic Table of the Elements.
  • Subgroup elements are characterized by antimicrobial activity. Against this background, it is conceivable that several subgroup elements exist together in the fiber body to selectively counteract different bacterial species. It has been shown in test series that there is a ranking of the substances used in terms of antimicrobial effectiveness. This can be represented as follows. Silver is the most effective substance, followed by mercury, copper, cadmium, chromium, lead, cobalt, gold, zinc, iron and finally manganese. The same applies to salts and complexes of the named elements or substances.
  • the dopant could be designed against this background as silver, gold or copper. These elements show a particularly reliable antimicrobial effect and are readily available commercially as fine particles.
  • the nonwoven fabric could have a basis weight of at least 20 g / m 2 . This basis weight has proved to be particularly advantageous to
  • the nonwoven fabric could have a basis weight of 20 to 200 g / m 2 . This basis weight is suitable for the production of bandages or layers for the wound cover.
  • the nonwoven fabric could be colored. Surprisingly, it has been found that an antimicrobially finished nonwoven fabric can be dyed and yet retains its antimicrobial effect.
  • the nonwoven fabric could have a water absorption capacity after a household wash according to DIN EN ISO 6330 of at least 400
  • the nonwoven fabric described here can easily be in contact with human skin.
  • the nonwoven fabric described herein has such a low concentration of a dopant that the human skin is not irritated.
  • eczema patients require a gentle nonwoven fabric, as described here.
  • the filaments also exhibit sufficient dopant concentration on the filament surface to stop or inhibit the growth or propagation of bacteria, viruses and spores.
  • the nonwoven fabric described herein may be used as a wipe or to make a wipe.
  • This use surprisingly shows a combinatorial effect, which is reflected in a high reactivity of the dopant and a high resistance to washing of the wipe.
  • a washable, permanently antimicrobially-doped wipe for example, in milk-contaminated state no bacterial decomposition, so that almost no odor in the home can arise.
  • Very particularly advantageous, however, is the use in commercial cleaning, since wipers are washed and dried here daily. If the wipes are equipped antimicrobial, it can be dispensed with a subsequent drying of the wipes. Experiments have shown that with each wash an energy saving of more than 3 kWh / kg wipe can be realized.
  • Nonwoven fabric comprising PIE bicomponent fibers with antimicrobial finish
  • Fig. 2 is a scanning electron micrograph of PIE fibers whose polyethylene terephthalate component is doped with silver, showing the silver in bright whitish spots
  • Fig. 1 shows a nonwoven fabric with bicomponent fibers, which are designed as continuous fibers.
  • the bicomponent fibers are designed as PIE fibers and consist of 30% polyamide 6 and about 70% Polyethylentereptalat.
  • the polyethylene terephthalate is enriched with the dopant silver.
  • the dopant silver is homogeneously distributed in the component of the fiber body having polyethylene terephthalate.
  • the silver is present in a concentration of at least 200 ppm and at most 500 ppm.
  • FIG. 3 shows an example of a scanning electron micrograph of a PIE 16 fiber and
  • FIG. 4 shows a scanning electron micrograph of a split PIE 16 fiber.
  • the polyethylene terephthalate component was prepared in each of Embodiments 1 to 3 in the following manner.
  • Embodiment 1 970 g of polyethylene terephthalate were mixed with 30 g of a master batch component to obtain a 3% concentration of master batch as shown in the table.
  • the masterbatch component contained more than 99% polyethylene terephthalate and less than 1% silver.
  • Analog were for the Embodiment 2 Concretely mixed 960 g of polyethylene terephthalate with 40 g of the master batch component.
  • 950 g of polyethylene terephthalate were mixed with 50 g of said master batch component.
  • the dopant used was silver from Silanotex GmbH, 80687 Kunststoff.
  • the master batch was "Nano-Silver-Master-Batch" of the named company in the mentioned quantities.
  • the nonwoven fabrics of Working Examples 1 to 3 were evaluated for their tear propagation resistance, tear resistance, extensibility, uniformity, permeability, thickness, basis weight and shrinkage.
  • N stands for Newton
  • MD machine direction (production direction)
  • CD cross direction
  • MD and CD denote orthogonal load directions, namely in the direction of production and orthogonal thereto.
  • the size CV the coefficient of variation of the basis weight of the nonwoven fabric.
  • a sample of 5 cm x 5 cm has a surface weight of 0.0025 m 2 .
  • Measured weight of the specimen times 400 gives basis weight in g / 1 m 2 .
  • CV (deviation from the mean of all specimen weights x 100): X
  • the comparative sample used was a nonwoven fabric of the type Evolon with a basis weight of 130 g / m 2 .
  • the comparative example is made from bicomponent fibers comprising 70% polyethylene terephthalate and 30% polyamide 6.
  • the polyamide used in the embodiments 1 to 3 is also polyamide 6.
  • the table essentially states that the doping of embodiments 1 to 3 with silver has no negative effects on the mechanical properties of the exemplary embodiments in comparison with the comparative sample.
  • the exemplary embodiments were manufactured analogously to the comparative sample except for the doping, which is commercially available under the product designation "EVOLON 130 g / m 2 " or "EVO 130".
  • the nonwoven fabrics of the embodiments 1 to 3 are made
  • Bicomponent fibers comprising 70% polyethylene terephthalate and 30% polyamide 6.
  • the embodiments were made from PIE 16 bicomponent fibers that had a fineness of 2.4 dtex before the splitter.
  • the nonwoven fabrics show a surface area per mass of 1219 m 2 / kg of nonwoven fabric.
  • a nonwoven fabric according to a fourth embodiment 4 consists of bicomponent fibers comprising 70% polyethylene terephthalate and 30% polyamide 6.
  • the embodiment was made of PIE 32 bicomponent fibers that had a fineness of 1.6 dtex before splitting.
  • Of the Nonwoven fabric shows a surface area per mass of 2741 m 2 / kg of nonwoven fabric when fully spliced.
  • a nonwoven fabric according to one of the embodiments 1 to 4 when new shows a water absorption of at least 350 percent by weight of its own weight in the dry state.
  • the nonwovens described herein are washable at least 400 times without forming holes in the nonwovens, with a washing process being designed as a domestic hot wash according to DIN EN ISO 6330.
  • a wet nonwoven fabric can be wrung by hand even after 400 washes according to DIN EN ISO 6330 without tearing.
  • the nonwoven fabrics described here are therefore durable.
  • the nonwovens give off as little silver in a household cooking wash at 90 ° C., that only 5% of the wash eluate according to DIN EN ISO 17294-2 ⁇ g of silver per liter of wash eluate occur.
  • the nonwovens described here therefore retain the silver very well and pollute the wastewater only to a very small extent.
  • the wash eluate is obtained by the following procedure: 0.2% of the surfactant "Tween 80" (Carl Roth GmbH & Co. KG, Düsseldorf, Germany) are mixed with 0.9% NaCl in water to give a solution in 200 ml 4 g of the embodiments described here are added to this solution, whereupon the solution is shaken together with the nonwoven fabric for 24 h at 37 ° C. In this solution a concentration of at most 5 ⁇ g per l wash eluate is established.

Abstract

L'invention porte sur un non-tissé, comprenant des fibres bicomposants, avec un corps de fibres dans lequel est logé au moins un additif pour traitement antimicrobien, les fibres bicomposants étant configurées comme des fibres continues. Du point de vue du problème consistant à mettre à disposition un non-tissé qui se caractérise par une réactivité de longue durée de l'additif à effet antimicrobien, et simultanément peut être plusieurs fois lavé d'une manière économique, le non-tissé de l'invention est caractérisé par des fibres bicomposants qui sont subdivisées en fibres élémentaires, et par une masse volumique superficielle de 1 200 à 3 250 m2/kg.
PCT/EP2009/001721 2008-03-19 2009-03-11 Matériau non tissé traité antibactérien, avec des fibres bicomposants WO2009115217A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP08005131A EP2103724B1 (fr) 2008-03-19 2008-03-19 Chiffon doté d'un tissu non tissé antibactérien
EP08005131.1 2008-03-19
DE102008015053.3 2008-03-19
DE102008015053A DE102008015053A1 (de) 2008-03-19 2008-03-19 Antibakteriell ausgerüstetes Vlies mit Bikomponetenfasern

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WO2009115217A1 true WO2009115217A1 (fr) 2009-09-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677394A (zh) * 2011-03-14 2012-09-19 武汉纺织大学 一种多组份抗菌无纺布
US20170105594A1 (en) * 2015-10-16 2017-04-20 Sharon Whiteley Portable reusable anti-microbial apparatus
CN111155236A (zh) * 2020-01-15 2020-05-15 华侨大学 一种基于静电纺丝技术制备长余辉发光膜材的方法及应用

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040214495A1 (en) * 1999-05-27 2004-10-28 Foss Manufacturing Co., Inc. Anti-microbial products
WO2007078203A1 (fr) * 2006-01-03 2007-07-12 Norwex Holding As Microfibre antibacterienne et procede de production associe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040214495A1 (en) * 1999-05-27 2004-10-28 Foss Manufacturing Co., Inc. Anti-microbial products
WO2007078203A1 (fr) * 2006-01-03 2007-07-12 Norwex Holding As Microfibre antibacterienne et procede de production associe

Cited By (3)

* Cited by examiner, † Cited by third party
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CN102677394A (zh) * 2011-03-14 2012-09-19 武汉纺织大学 一种多组份抗菌无纺布
US20170105594A1 (en) * 2015-10-16 2017-04-20 Sharon Whiteley Portable reusable anti-microbial apparatus
CN111155236A (zh) * 2020-01-15 2020-05-15 华侨大学 一种基于静电纺丝技术制备长余辉发光膜材的方法及应用

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