EP1251759B1 - Use of a micro-fibre non woven for anti-allergy BED sheets - Google Patents

Use of a micro-fibre non woven for anti-allergy BED sheets Download PDF

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Publication number
EP1251759B1
EP1251759B1 EP00969570A EP00969570A EP1251759B1 EP 1251759 B1 EP1251759 B1 EP 1251759B1 EP 00969570 A EP00969570 A EP 00969570A EP 00969570 A EP00969570 A EP 00969570A EP 1251759 B1 EP1251759 B1 EP 1251759B1
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EP
European Patent Office
Prior art keywords
use according
continuous
nonwoven fabric
multicomponent filaments
continuous multicomponent
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EP00969570A
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German (de)
French (fr)
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EP1251759A1 (en
Inventor
Werner Schäfer
Robert Groten
Jean-Jacques Beck
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Carl Freudenberg KG
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Carl Freudenberg KG
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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
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • A47G9/02—Bed linen; Blankets; Counterpanes
    • 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
    • D04H3/016—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
    • 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
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
    • 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
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • A47G2009/001—Anti-allergen; Anti-mite

Definitions

  • the invention relates to the use of a microfilament nonwoven fabric having basis weights of 70 to 150 g / m 2 and a particle retention capacity> 90% for particle particles ⁇ 0.5 microns, as allergy sleeping clothes.
  • the invention has set itself the task of inexpensive sleepwear, the one has high particle retention at a low weight and a Specify method for their preparation.
  • the object is achieved in that a nonwoven fabric with basis weights of 70 to 150 g / m 2 and a particle retention> 90% for particle ⁇ 0.5 microns is used as the sleep fabric of the nonwoven fabric of melt spun, stretched and deposited directly to a nonwoven Multi-component continuous filaments with a titer of 1.5 to 5dtex and the Mehrkomponentenlosfilfilee optionally after a preconsolidation at least 80% to micro-continuous filaments with a titer of 0.1 to 0.8 dtex are split and solidified.
  • Such a sleepwear with a comparatively low weight, has a particle retention capacity> 90% for particle particles ⁇ 0.5 .mu.m and is therefore suitable as a hypoallergenic sleeping lye, in particular vis-a-vis house dust mites and their secretions.
  • the sleepwear is one in which the nonwoven fabric is made melt spun, stretched and deposited directly to a nonwoven Multi-component continuous filaments with a titer of 2 to 3 dtex consists and the multi-component continuous filaments at least 80% to micro continuous filaments with a titer of 0.1 to 0.3 dtex split and solidified are.
  • the sleepwear is one in which the multi-component continuous filament a bicomponent filament of two incompatible Polymers, in particular a polyester and a polyamide.
  • Bicomponent filament has a good splittability in micro continuous filaments and causes a favorable ratio of strength to Weight per unit area.
  • the sleepwear is one in which the multi-component continuous filaments a cross-section with orange or "pie" Having said multi-segment structure, wherein the segments alternately each containing one of the two incompatible polymers. Beside this orange-like multisegment structure of the multicomponent continuous filaments is also a "side-by-side" (s / s) arrangement of incompatible polymers in the Multi-component endless filament possible, preferably for the production crimped filaments is used. Such arrangements of incompatible Polymers in the multicomponent continuous filament have proven to be very good fissile proved.
  • the sleepwear is still one in which at least one of the multicomponent continuous filament forming incompatible polymer Additive, such as color pigments, permanent antistatic agents and / or the hydrophilic or hydrophobic properties affecting additives in Amounts up to 10% by weight.
  • Additive such as color pigments, permanent antistatic agents and / or the hydrophilic or hydrophobic properties affecting additives in Amounts up to 10% by weight.
  • the spun-dyed fibers existing sleepwear has a very good wash fastness. Farther can be reduced or avoided by the additives static charges and the moisture transport properties are improved.
  • the sleepwear is still one that is point calendered.
  • a such surface design improves abrasion resistance.
  • the process for making a sleepwear exists in that multicomponent continuous filaments are melt-spun, stretched and placed directly to a fleece, a Pre-consolidation takes place and the nonwoven fabric by high-pressure fluid jets solidified as at the same time in micro continuous filaments with a titer of 0.1 to 0.8 dtex is split.
  • the resulting sleepwear is very even in terms of its thickness, it has an isotropic thread distribution, has no tendency to delaminate and is characterized by high module values excellent.
  • the method for producing the sleepwear in the Performed such that the solidification and splitting of the multi-component continuous filaments characterized in that the optionally pre-consolidated Nonwoven fabric at least once on each side with high pressure water jets is charged.
  • the sleepwear has thereby a good surface and a degree of splitting of the multi-component continuous filaments> 80%.
  • Particularly preferred is a method in which the multi-component continuous filaments be spun dyed.
  • the integration of the dyes in the Polymer fibers leads to excellent wash fastness.
  • the abrasion resistance of the sleepwear according to the invention is characterized improves that the micro filaments on the surfaces of the nonwoven fabric selectively welded together by a thermal calendering process become.
  • the solidified and split into micro filaments Nonwoven fabric passed through heated rollers, which have elevations and on These sites to a fusion of micro-filaments lead one another.
  • the sleepwear is particularly suitable as bed linen and sheets for allergy to dust mites and their Secretions.
  • the sleepwear has a good water absorption and drainage capacity, which is reflected in corresponding values of water vapor permeability and short-term water vapor absorption capacity or the water vapor resistance manifests.
  • a Filamentflor is produced with a basis weight of 154 g / m 2 and subjected to a water jet needling with pressures up to 250 bar on both sides.
  • the bicomponent filaments after the water jet needling which leads to a simultaneous splitting of the starting filaments, a titer of 0.1 to 0.8 dtex.
  • the sleepwear has a water vapor transmission index i mt of 0.45, a short-term water vapor absorption capacity F i of 0.8 and a water vapor transmission resistance R et of 3.49 m 2 Pa / W.
  • the particle retention capacity determined with an optical evaluation method shows that about 80% of the particles which penetrate the sleepwear are ⁇ 0.5 ⁇ m, the total number of permeated particles per 100 ⁇ m 2 being about 100.

Description

Die Erfindung betrifft die Verwendung eines Mikrofilament-Vliesstoffes mit Flächengewichten von 70 bis 150g/m2 und einem Partikelrückhaltevermögen >90% für Partikelteilchen < 0,5 µm, als AllergikerSchlafwäsche.The invention relates to the use of a microfilament nonwoven fabric having basis weights of 70 to 150 g / m 2 and a particle retention capacity> 90% for particle particles <0.5 microns, as allergy sleeping clothes.

Ein nicht unbeträchtlicher Teil der Bevölkerung leidet an durch Hausstaubmilben hervorgerufenen Allergien. Dabei bieten insbesondere die Polsterung von Matratzen, Kopfkissen und Bettdecken ideale Brutstätten für Hausstaubmilben, da Milben sich in das Innere zurückziehen können und so einer dauerhaften Entfernung durch das Waschen der Bezugsstoffe wie Bettwäsche und Bettlaken entgehen. Es ist daher bereits vorgeschlagen worden, die Bezugsstoffe mit akariziden Wirkstoffen auszurüsten. Nachteilig dabei ist, daß die Wirkstoffe durch die aus hygienischen Gründen notwendigen Waschvorgänge sehr schnell wieder entfernt werden. Ein weiterer Vorschlag besteht darin, eine dichte Folie auf einen Bezugstoff aufzubringen. Dadurch wird jedoch der Feuchtigkeitstransport verhindert und Schweiß kann nicht mehr abgeleitet werden.
Aus den Dokument US 5,050,256 und US 5,950,264 sind antiallergene Bezugsstoffe bekannt, bei denen eine Polyurethanschicht auf ein Trägermaterial auflaminiert ist. Die Polyurethanschicht soll dabei dem Material eine Porengröße < 10µm bei gleichzeitig noch vorhandener Wasserdampfdurchlässigkeit verleihen. A not inconsiderable part of the population suffers from allergies caused by house dust mites. In particular, the upholstery of mattresses, pillows and duvets provide ideal breeding grounds for dust mites, as mites can retreat into the interior and thus avoid a permanent removal by washing the cover fabrics such as sheets and bed sheets. It has therefore already been proposed to equip the cover fabrics with acaricidal active ingredients. The disadvantage here is that the active ingredients are removed very quickly by the necessary washing for hygienic reasons. Another proposal is to apply a tight film on a fabric. However, this prevents the moisture transport and sweat can no longer be diverted.
From the document US 5,050,256 and US 5,950,264 antiallergic fabrics are known in which a polyurethane layer is laminated to a substrate. The polyurethane layer is intended to impart to the material a pore size of <10 .mu.m while still permitting water vapor permeability.

Die Erfindung hat sich die Aufgabe gestellt, preiswerte Schlafwäsche, die ein hohes Partikelrückhaltevermögen bei einem geringen Gewicht besitzt sowie ein Verfahren zu deren Herstellung anzugeben.The invention has set itself the task of inexpensive sleepwear, the one has high particle retention at a low weight and a Specify method for their preparation.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß als Schlafwäsche ein Vliesstoff mit Flächengewichten von 70 bis 150 g/m2 und einem Partikelrückhaltevermögen >90% für Partikelteilchen < 0,5 µm verwendet wird wobei der Vliesstoff aus schmelzgesponnenen, verstreckten und unmittelbar zu einem Vlies abgelegten Mehrkomponenten-Endlosfilamenten mit einem Titer von 1,5 bis 5dtex besteht und die Mehrkomponenten-Endlosfilamente gegebenenfalls nach einer Vorverfestigung zumindest zu 80% zu Mikro-Endlosfilamenten mit einem Titer von 0,1 bis 0,8 dtex gesplittet und verfestigt sind. Eine solche Schlafwäsche weist bei einem vergleichsweise geringen Gewicht ein Partikelrückhaltevermögen >90% für Partikelteilchen < 0,5 µm auf und ist daher als Allergikerschlafwäsche insbesondere gegenüber Hausstaubmilben und deren Absonderungen geeignet.According to the invention the object is achieved in that a nonwoven fabric with basis weights of 70 to 150 g / m 2 and a particle retention> 90% for particle <0.5 microns is used as the sleep fabric of the nonwoven fabric of melt spun, stretched and deposited directly to a nonwoven Multi-component continuous filaments with a titer of 1.5 to 5dtex and the Mehrkomponentenlosfilfilee optionally after a preconsolidation at least 80% to micro-continuous filaments with a titer of 0.1 to 0.8 dtex are split and solidified. Such a sleepwear, with a comparatively low weight, has a particle retention capacity> 90% for particle particles <0.5 .mu.m and is therefore suitable as a hypoallergenic sleeping lye, in particular vis-a-vis house dust mites and their secretions.

Vorzugsweise ist die Schlafwäsche eine, bei der der Vliesstoff aus schmelzgesponnenen, verstreckten und unmittelbar zu einem Vlies abgelegten Mehrkomponenten-Endlosfilamenten mit einem Titer von 2 bis 3 dtex besteht und die Mehrkomponenten-Endlosfilamente zumindest zu 80 % zu Mikro-Endlosfilamenten mit einem Titer von 0,1 bis 0,3 dtex gesplittet und verfestigt sind.Preferably, the sleepwear is one in which the nonwoven fabric is made melt spun, stretched and deposited directly to a nonwoven Multi-component continuous filaments with a titer of 2 to 3 dtex consists and the multi-component continuous filaments at least 80% to micro continuous filaments with a titer of 0.1 to 0.3 dtex split and solidified are.

Vorzugsweise ist die Schlafwäsche eine, bei der das Mehrkomponenten-Endlosfilament ein Bikomponenten-Endlosfilament aus zwei inkompatiblen Polymeren, insbesondere einem Polyester und einem Polyamid, ist. Ein solches Bikomponenten-Endlosfilament weist eine gute Spaltbarkeit in Mikro-Endlosfilamenten auf und bewirkt ein günstiges Verhältnis von Festigkeit zu Flächengewicht auf. Preferably, the sleepwear is one in which the multi-component continuous filament a bicomponent filament of two incompatible Polymers, in particular a polyester and a polyamide. Such Bicomponent filament has a good splittability in micro continuous filaments and causes a favorable ratio of strength to Weight per unit area.

Vorzugsweise ist die Schlafwäsche eine, bei der die Mehrkomponenten-Endlosfilamente einen Querschnitt mit orangenartiger oder auch "Pie" genannten Multisegment-Struktur aufweisen, wobei die Segmente alternierend jeweils eines der beiden inkompatiblen Polymeren enthalten. Neben dieser orangenartigen Multisegment-Struktur der Mehrkomponenten-Endlosfilamente ist auch eine "side-by-side" (s/s) Anordnung der inkompatiblen Polymeren im Mehrkomponenten-Endlosfilament möglich, die vorzugsweise zur Erzeugung gekräuselter Filamente genutzt wird. Solche Anordnungen der inkompatiblen Polymeren im Mehrkomponenten-Endlosfilament haben sich als sehr gut spaltbar erwiesen.Preferably, the sleepwear is one in which the multi-component continuous filaments a cross-section with orange or "pie" Having said multi-segment structure, wherein the segments alternately each containing one of the two incompatible polymers. Beside this orange-like multisegment structure of the multicomponent continuous filaments is also a "side-by-side" (s / s) arrangement of incompatible polymers in the Multi-component endless filament possible, preferably for the production crimped filaments is used. Such arrangements of incompatible Polymers in the multicomponent continuous filament have proven to be very good fissile proved.

Vorzugsweise ist die Schlafwäsche weiterhin eine, bei der mindestens eines der das Mehrkomponenten-Endlosfilament bildenden inkompatiblen Polymeren ein Additiv, wie Farbpigmente, permanent wirkende Antistatika und/oder die hydrophilen oder hydrophoben Eigenschaften beeinflussende Zusätze in Mengen bis zu 10 Gewichtsprozent, enthält. Die aus spinngefärbten Fasern bestehende Schlafwäsche weist eine sehr gute Waschechtheit auf. Weiterhin können durch die Zusätze statische Aufladungen vermindert bzw. vermieden und die Feuchtigkeits-Transporteigenschaften verbessert werden.Preferably, the sleepwear is still one in which at least one of the multicomponent continuous filament forming incompatible polymer Additive, such as color pigments, permanent antistatic agents and / or the hydrophilic or hydrophobic properties affecting additives in Amounts up to 10% by weight. The spun-dyed fibers existing sleepwear has a very good wash fastness. Farther can be reduced or avoided by the additives static charges and the moisture transport properties are improved.

Vorzugsweise ist die Schlafwäsche weiterhin eine, die punktkalandriert ist. Eine solche Gestaltung der Oberfläche verbessert die Abriebbeständigkeit.Preferably, the sleepwear is still one that is point calendered. A such surface design improves abrasion resistance.

Das Verfahren zur Herstellung einer Schlafwäsche besteht darin, daß Mehrkomponenten-Endlosfilamente aus der Schmelze ersponnen, verstreckt und unmittelbar zu einem Vlies abgelegt werden, eine Vorverfestigung erfolgt und der Vliesstoff durch Hochdruck-Fluidstrahlen verfestigt wie gleichzeitig in Mikro-Endlosfilamente mit einem Titer von 0,1 bis 0,8 dtex gesplittet wird. Die so erhaltene Schlafwäsche ist sehr gleichmäßig hinsichtlich ihrer Dicke, sie weist eine isotrope Fadenverteilung auf, besitzt keine Neigung zum Delaminieren und ist durch hohe Modulwerte ausgezeichnet.The process for making a sleepwear exists in that multicomponent continuous filaments are melt-spun, stretched and placed directly to a fleece, a Pre-consolidation takes place and the nonwoven fabric by high-pressure fluid jets solidified as at the same time in micro continuous filaments with a titer of 0.1 to 0.8 dtex is split. The resulting sleepwear is very even in terms of its thickness, it has an isotropic thread distribution, has no tendency to delaminate and is characterized by high module values excellent.

Vorteilhafterweise wird das Verfahren zur Herstellung der Schlafwäsche in der Weise durchgeführt, daß die Verfestigung und Splittung der Mehrkomponenten-Endlosfilamente dadurch erfolgt, daß der gegebenenfalls vorverfestigte Vliesstoff mindestens einmal auf jeder Seiten mit Hochdruck-Wasserstrahlen beaufschlagt wird. Die Schlafwäsche weist dadurch eine gute Oberfläche und einen Splittungsgrad der Mehrkomponenten-Endlosfilamente > 80% auf.Advantageously, the method for producing the sleepwear in the Performed such that the solidification and splitting of the multi-component continuous filaments characterized in that the optionally pre-consolidated Nonwoven fabric at least once on each side with high pressure water jets is charged. The sleepwear has thereby a good surface and a degree of splitting of the multi-component continuous filaments> 80%.

Besonders bevorzugt ist ein Verfahren, bei dem die Mehrkomponenten-Endlosfilamente spinngefärbt werden. Die Einbindung des Farbstoffe in die Polymerfasern führt zu hervorragenden Waschechtheiten.Particularly preferred is a method in which the multi-component continuous filaments be spun dyed. The integration of the dyes in the Polymer fibers leads to excellent wash fastness.

Die Abriebbeständigkeit der erfindungsgemäßen Schlafwäsche wird dadurch verbessert, daß die Mikro-Endlosfilamente an den Oberflächen des Vliesstoffes durch ein Thermokalandrierverfahren punktuell mit einander verschweißt werden. Dazu wird der verfestigte und in Mikro-Endlosfilamente gesplittete Vliesstoff durch beheizte Walzen geführt, die Erhebungen besitzen und an diesen Stellen zu einem Verschmelzen der Mikro-Endlosfilamente untereinander führen.The abrasion resistance of the sleepwear according to the invention is characterized improves that the micro filaments on the surfaces of the nonwoven fabric selectively welded together by a thermal calendering process become. For this purpose, the solidified and split into micro filaments Nonwoven fabric passed through heated rollers, which have elevations and on These sites to a fusion of micro-filaments lead one another.

Die Schlafwäsche ist insbesondere geeignet als Bettwäsche und Bettlaken für Allergiker gegen Hausstaubmilben und deren Absonderungen. Daneben besitzt die Schlafwäsche ein gutes Wasseraufnahme- und Wasserableitungsvermögen, das sich in entsprechenden Werten der Wasserdampfpermeabilität und der Kurzzeit-Wasserdampf-Absorptionsfähigkeit bzw. dem Wasserdampfwiderstand äußert. The sleepwear is particularly suitable as bed linen and sheets for allergy to dust mites and their Secretions. In addition, the sleepwear has a good water absorption and drainage capacity, which is reflected in corresponding values of water vapor permeability and short-term water vapor absorption capacity or the water vapor resistance manifests.

Beispiel 1example 1

Aus einem Polyester-Polyamid (PES-PA)-Bikomponenten-Endlosfilament wird ein Filamentflor mit einem Flächengewicht von 154 g/m2 erzeugt und einer Wasserstrahlvernadelung mit Drücken bis 250 bar beidseitig unterzogen. Die Bikomponenten-Endlosfilamente weisen nach der Wasserstrahlvernadelung, die zu einer gleichzeitigen Splittung der Ausgangsfilamente führt, einen Titer von 0,1 bis 0,8 dtex auf. Die Schlafwäsche weist einen Wasserdampfdurchgangsindex imt von 0,45, eine Kurzzeit-Wasserdampfaufnahmefähigkeit Fi von 0,8 und einen Wasserdampfdurchgangswiderstand Ret von 3,49 m2Pa/W auf. Das mit einem optischen Auswerteverfahren ermittelte Partikelrückhaltevermögen zeigt, daß ca. 80% der die Schlafwäsche durchdringenden Partikef < 0,5µm sind, wobei die Gesamtzahl der durchgedrungenen Partikel pro 100 µm2 ca. 100 beträgt.From a polyester-polyamide (PES-PA) -bicomponent continuous filament a Filamentflor is produced with a basis weight of 154 g / m 2 and subjected to a water jet needling with pressures up to 250 bar on both sides. The bicomponent filaments after the water jet needling, which leads to a simultaneous splitting of the starting filaments, a titer of 0.1 to 0.8 dtex. The sleepwear has a water vapor transmission index i mt of 0.45, a short-term water vapor absorption capacity F i of 0.8 and a water vapor transmission resistance R et of 3.49 m 2 Pa / W. The particle retention capacity determined with an optical evaluation method shows that about 80% of the particles which penetrate the sleepwear are <0.5 μm, the total number of permeated particles per 100 μm 2 being about 100.

Claims (10)

  1. The use of a microfilament nonwoven fabric having a basis weight in the range from 70 to 150 g/m2 and a > 90% particle retention capacity for particles < 0.5 µm, the nonwoven fabric consisting of continuous multicomponent filaments having a linear density in the range from 1.5 to 5 dtex which are melt-spun, stretched and directly laid down to form a web, and the continuous multicomponent filaments, if desired after a preconsolidating operation, being at least 80% split into continuous microfilaments having a linear density in the range from 0.1 to 0.8 dtex and consolidated, as bedding for allergy sufferers.
  2. The use according to claim 1, characterized in that the nonwoven fabric consists of continuous multicomponent filaments having a linear density in the range from 2 to 3 dtex which are melt-spun, aerodynamically stretched and directly laid down to form a web, and the continuous multicomponent filaments, if desired after a preconsolidating operation, are at least 80% split into continuous microfilaments having a linear density in the range from 0.1 to 0.3 dtex and consolidated.
  3. The use according to claim 1 or 2, characterized in that the continuous multicomponent filament is a continuous bicomponent filament of two incompatible polymers, especially of a polyester and a polyamide.
  4. The use according to claim 3, characterized in that the continuous multicomponent filaments have a cross section having an orangelike, pie multisegment structure or a side-by-side structure, in which segments each containing one of the two incompatible polymers alternate.
  5. The use according to claim 3 or 4, characterized in that at least one of the incompatible polymers forming the continuous multicomponent filament contains an additive, such as colour pigments, permanently active antistats and/or hydrophilic or hydrophobic modifiers, in an amount up to 10 per cent by weight.
  6. The use according to any one of claims 1 to 5, characterized in that the nonwoven fabric is spot calendered.
  7. The use according to any one of claims 1 to 6, characterized in that the consolidating and splitting of the continuous multicomponent filaments is effected by subjecting the nonwoven fabric to high-pressure water jets alternately at least once from each side.
  8. The use according to any one of claims 1 to 7, characterized in that the continuous multicomponent filaments of the nonwoven fabric are spun dyed.
  9. The use according to any one of claims 1 to 8 as bed-sheeting.
  10. The use according to any one of claims 1 to 8 as pillow cases and duvet covers.
EP00969570A 1999-12-23 2000-10-31 Use of a micro-fibre non woven for anti-allergy BED sheets Expired - Lifetime EP1251759B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19962313A DE19962313C1 (en) 1999-12-23 1999-12-23 Nonwoven fabric, for use as bed linen, comprises bicomponent microfilaments of two incompatible polymers with good particle retention
DE19962313 1999-12-23
PCT/EP2000/010707 WO2001047383A1 (en) 1999-12-23 2000-10-31 Bed linen

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EP1251759A1 EP1251759A1 (en) 2002-10-30
EP1251759B1 true EP1251759B1 (en) 2005-01-26

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EP00969570A Expired - Lifetime EP1251759B1 (en) 1999-12-23 2000-10-31 Use of a micro-fibre non woven for anti-allergy BED sheets

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EP (1) EP1251759B1 (en)
CN (1) CN1211034C (en)
AU (1) AU7924400A (en)
DE (2) DE19962313C1 (en)
WO (1) WO2001047383A1 (en)

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DE10219929A1 (en) * 2002-05-03 2003-12-04 Freudenberg Carl Kg Process for improving softness and / or dropping nonwovens
DE20310279U1 (en) * 2003-07-03 2004-11-11 Sanders Gmbh Cover for feather bedding and pillows, filled with down feathers, is a dense nonwoven of micro-fibers which is permeable to air and vapor but impenetrable for feathers and allergens
DE102008015053A1 (en) * 2008-03-19 2009-09-24 Carl Freudenberg Kg Antibacterial textile with bicomponent fibers, e.g. for clothing, has fiber body incorporating at least one doping substance for antimicrobial effect
DE102008035803A1 (en) 2008-07-31 2010-02-04 Sanders Gmbh Woven blanket "WEB-Design"
WO2010128372A1 (en) * 2009-05-08 2010-11-11 Allergosystem S.R.L. A device for protecting pets from allergy
EP2363518A1 (en) 2010-03-03 2011-09-07 Allergosystem S.r.l. Allergy protecting fabric, use and method for its production
DE202010016666U1 (en) 2010-12-16 2011-04-28 Sanders Gmbh Blanket, sleeping bag, clothing, pillows with heat and moisture dissipating and body-adapted structure
CN103640296A (en) * 2013-11-26 2014-03-19 天津工业大学 Moisture-absorbing and quick-drying composite fabric for preventing mites
DE102014002232B4 (en) * 2014-02-21 2019-10-02 Carl Freudenberg Kg Microfiber composite fabric
DE202018101036U1 (en) 2018-02-26 2018-03-07 Gebr. Kremers Gmbh Blanket, in particular quilt

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GB8730252D0 (en) * 1987-12-29 1988-02-03 Woodcock A Bedding system
GB9013799D0 (en) * 1990-06-20 1990-08-08 Dancey Elizabeth A protective cover
AU2094595A (en) * 1994-03-04 1995-09-18 Allergy Control Products, Inc. Bedding articles enclosed in elastic laminated water-proof moisture-permeable allergen barriers
JPH07246144A (en) * 1994-03-09 1995-09-26 Unitika Ltd Antiallergenic bedding cover
US5759926A (en) * 1995-06-07 1998-06-02 Kimberly-Clark Worldwide, Inc. Fine denier fibers and fabrics made therefrom
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DE29619026U1 (en) * 1996-11-02 1997-03-27 Frohn Peter Mite-proof bed linen consisting of bed sheet, pillow case and duvet cover, optionally with printed motifs

Also Published As

Publication number Publication date
DE19962313C1 (en) 2001-04-19
AU7924400A (en) 2001-07-09
CN1413089A (en) 2003-04-23
DE50009383D1 (en) 2005-03-03
CN1211034C (en) 2005-07-20
EP1251759A1 (en) 2002-10-30
WO2001047383A1 (en) 2001-07-05

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