EP3165655B1 - Verwendung von endlosfilamentvliesstoffen zum verhindern des austretens von daunen bei mit daunen gefüllten textilprodukten - Google Patents

Verwendung von endlosfilamentvliesstoffen zum verhindern des austretens von daunen bei mit daunen gefüllten textilprodukten Download PDF

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Publication number
EP3165655B1
EP3165655B1 EP16196208.9A EP16196208A EP3165655B1 EP 3165655 B1 EP3165655 B1 EP 3165655B1 EP 16196208 A EP16196208 A EP 16196208A EP 3165655 B1 EP3165655 B1 EP 3165655B1
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EP
European Patent Office
Prior art keywords
nonwoven material
nonwoven fabric
dtex
filaments
use according
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EP16196208.9A
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German (de)
English (en)
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EP3165655B8 (fr
EP3165655A1 (fr
Inventor
Robert Prof. Dr. GROTEN
Guenter Schmitt
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Carl Freudenberg KG
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Carl Freudenberg KG
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Publication of EP3165655B8 publication Critical patent/EP3165655B8/fr
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    • 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
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/12—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton
    • A47C27/124—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton with feathers, down or similar inlays
    • 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
    • A47G9/0207—Blankets; Duvets
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of 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
    • D04H1/4282—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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4358—Polyurethanes
    • 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
    • D04H13/00—Other non-woven fabrics
    • 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
    • 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
    • D04H3/007—Addition 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
    • 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
    • D04H3/08—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
    • D04H3/12—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 filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B68—SADDLERY; UPHOLSTERY
    • B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
    • B68G1/00—Loose filling materials for upholstery
    • B68G2001/005—Loose filling materials for upholstery for pillows or duvets

Definitions

  • the invention relates to the use of a nonwoven fabric of continuous filaments for preventing the leakage of down from a down filled textile product, wherein the continuous filaments have a titer less than 0.15 dtex.
  • the invention also relates to down-filled textile products and methods for their preparation.
  • Down also known as lower springs, are feathers with short keel and soft feathered branches. Down is used in textile products, such as bedding, jackets or sleeping bags, as thermal insulation fillers. The downs are contained and enclosed in sheaths of flat textile structures. Down-filled textile products must be "down-proof" when used as intended. This means that the down does not penetrate or even get out of the sheaths. Since quills of down are pointed and hard, the shells must have a high strength. In particular, dense and strong tissues are suitable as casings. Fabrics consist of interwoven weft threads and warp threads. Down quills, which are pointed, but generally much larger than fabric threads and fabric stitches, can not penetrate fabrics because the fibers are not sufficiently slidable. The down density of fabrics can be tested in a standardized method according to DIN 12132-1.
  • textile nonwovens are not suitable as sheaths for filling with down. Even thick textile nonwovens are relatively easily penetrated by down. Because the fibers of conventional nonwoven fabrics are disordered and therefore mutually displaceable, down quills can easily penetrate them.
  • the down density of nonwovens can be achieved if they thermally or chemically solidify surface become. The fibers are then similar to each other in a tissue bound together and no longer freely against each other. However, such surface solidification is unacceptable in textile applications, as it leads to unfavorable properties, such as low softness and elasticity, low porosity and associated low air and moisture permeability. Therefore, the prior art generally uses fabric for down fillings. Since it has been assumed in the prior art that conventional nonwovens are not suitable for filling with down, there is also no standardized method for measuring the down density which corresponds to DIN 12132-1 for fabrics for nonwovens.
  • nonwoven fabrics in particular have many advantageous properties which distinguish them from fabrics, such as high softness, elasticity, stability, porosity, high air and moisture permeability, but also good availability and processability ,
  • nonwovens for the storage of down as a component of laminates.
  • the JP2008 / 303480A to use a composite material of a fabric with a nonwoven fabric.
  • the JP2006 / 291421A discloses down-density laminates containing thermally bonded nonwovens.
  • Laminates are also relatively expensive to produce, also because the components must be glued or otherwise firmly connected.
  • the German utility model DE 203 10 279 U1 describes bedding envelopes made of microfiber nonwovens with good air permeability, which provide protection against allergens and mites.
  • the sheaths have characteristic mechanical properties characteristic of nonwoven fabrics, for example in terms of washability and stability.
  • the disclosure also claims that the microfiber web is downproof. For this, however, no proof is provided.
  • the microfiber web according to the embodiment of the DE 203 10 279 U1 is a true nonwoven fabric that has not been thermally consolidated, nor reinforced by other layers in a laminate. Therefore, the fibers in non-solidified areas are mutually displaceable and it is not credible to those skilled in the art that such a conventional nonwoven fabric is downproof.
  • the Applicant of the present application has therefore examined whether the claim of DE 203 10 279 U1 It is true that such fine microfiber nonwovens are downproof.
  • the DE 203 10 279 U1 has an "embodiment", in which, however, no information on the origin or the production of the nonwoven fabric are made.
  • the general information on the nature of the microfiber nonwoven fabric are relatively superficial.
  • the microfiber nonwoven fabric described therein essentially corresponds to a commercially available product of the brand Evolon 100 from Freudenberg, DE, which was commercially available in 2003.
  • the Evolon brand product is made from 16-microfiber multicomponent fibers per filament in cupcake form (PIE16).
  • the nonwoven fabrics are solidified by water-jet treatment, wherein the multi-component fibers are split into individual filaments of polyethylene terephthalate (PET) and polyamide (PA).
  • PET polyethylene terephthalate
  • PA polyamide
  • the fiber thickness of the multicomponent fiber is about 2.4 dtex and that of the individual fibers after splitting about 0.2 dtex and 0.1 dtex.
  • the nonwoven fabric Evolon 100 with respect to the polyamide fiber component would be even finer than that in the DE 203 10 279 U1 described.
  • test specification actually serves for the investigation of fabrics, but can be used analogously and without substantive modification for nonwovens.
  • a corresponding standard for nonwovens is only not available because in the prior art there was no need for it, since nonwovens are in principle not downproof. Thus, it was possible to confirm the general knowledge that such nonwovens are resistant to allergens, mosquito bites or mites, but not to down.
  • the Applicant has also microscopically studied the effect of down feathers on such a microfiber nonwoven fabric.
  • the result is in the Fig. 1 to 4 shown.
  • the Fig. 1 and 2 show a typical down feather after penetration of the microfiber nonwoven fabric at different magnifications.
  • the down quill has a point, with which it can penetrate into the much finer fleece material.
  • the quill has fine barbs that support directional penetration.
  • Fig. 3 shows a down feather in the process of penetration of the nonwoven fabric.
  • Fig. 4 shows a typical hole that has drilled a down through the nonwoven fabric.
  • the lack of down density of the microfiber nonwoven according to DE 203 10 279 U1 is consistent with the general knowledge that non-thermally solidified Nonwoven fabrics, even if they are made of very fine fibers, are not downproof.
  • the DE 203 10 279 U1 contains no teaching to overcome the known disadvantages of nonwovens regarding the lack of down density.
  • nonwovens known in the prior art were only suitable for storing down, when sufficiently thermally consolidated or combined in laminates with other layers.
  • the WO 01/48293 A1 refers to sleepwear made of a microfilament nonwoven fabric having a weight per unit area of 60 to 200 g / m 3 and a particle retention capacity> 90% for particle particles ⁇ 0.5 ⁇ m.
  • multi-component continuous filaments are at least 80% split and solidified into microfilamentary filaments having a titer of 0.1 to 0.8 dtex.
  • the WO 01/48293 A1 does not address the problem of preventing puncture of such pointed down by nonwovens.
  • the "particles" are very fine nanoparticles, especially house dust mites and their secretions.
  • down are pointed and have lengths in the centimeter range.
  • Good retention of nanoparticles requires a very fine fiber network but not special mechanical stability. Therefore, it was believed that a very fine fiber structure of mutually displaceable fibers is just not suitable for preventing piercing of thin, pointed and comparatively large objects, such as needles, down quills or mosquito bites. It has therefore generally been assumed in the prior art that only particularly stable fiber products, such as textile fabrics, prevent the penetration of relatively large pointed objects.
  • the invention has for its object to provide materials for the storage of down for textile applications, which solve the problems described above.
  • This textile products are to be provided with good mechanical properties to keep down.
  • the textile products should in particular have a high softness and elasticity, porosity, air and moisture permeability, but at the same time be down-proof.
  • the materials should be relatively easily available and the manufacturing process should as far as possible involve no complex processing steps, such as lamination or special post-treatment steps. Overall, the material should be both easily provided by the manufacturer, as well as highly acceptable to the user.
  • the invention relates to the use of a nonwoven fabric of continuous filaments for preventing the leakage of down from a down filled textile product, the nonwoven fabric being obtainable by a spinning process in which multicomponent fibers are laid down to a nonwoven, whereafter the multicomponent fibers in continuous filaments with a denier smaller 0.15 dtex are split and the nonwoven is solidified by mechanical consolidation, comprising a fluid jet hardening, to form a nonwoven fabric, wherein the nonwoven fabric is not thermally or chemically consolidated surface.
  • the use according to the invention is carried out with a down filled textile product.
  • the textile product has a sheath enclosing a cavity in which the downs are contained and sealed from the environment.
  • the nonwoven fabric forms the shell of the textile product or a part thereof.
  • Nonwovens are, according to the definition of DIN 61 210 (Part 2, 1988), fabrics of loosely laid fibers bonded together by friction, cohesion or adhesion.
  • the nonwoven fabric as a shell and barrier keeps the down from escaping from the textile product.
  • the nonwoven fabric consists of continuous filaments.
  • filaments refers to fibers which, in contrast to staple fibers, are produced in a continuous process and are deposited directly into a nonwoven.
  • down refers to down feathers (bottom feathers) of birds which are suitable for textile fillings.
  • a definition of down is given in DIN 12934. Down are especially feathers with a very short keel and long, radially arranged spring branches. Down also regularly has fewer hooks than other feathers. Because of their high elasticity and dimensional stability in combination with heat-insulating properties down are used for a variety of textile applications.
  • the use of the invention is to prevent the escape of down from a down filled textile product.
  • the down filling is contained in a wrapper which separates it from the environment.
  • exit refers to any movement of the down, in which the shell is penetrated.
  • the down can penetrate the shell only partially or completely.
  • the term “leakage” includes feathers of down only drilling part of the tip through the shell and getting stuck in it, or they can completely penetrate the shell and leave the textile product.
  • the down density is preferably determined according to the simulated cushion stress test of DIN EN 12132-1, part 1, wherein the nonwoven fabric is used instead of a fabric.
  • the nonwoven fabric passes the test according to DIN EN 12132-1, which means that in each direction tested (longitudinal and transverse) not more than 20 particles emerge, ie stuck in the textile material or have penetrated this.
  • An average value is preferably evaluated from a plurality of individual measurements, for example, 5, 10 or 20 individual measurements. In particular, no more than 15 particles, in particular no more than 12 particles, are emitted in the test.
  • the nonwoven directly contacts the down filling. This means that there is no additional layer between the nonwoven fabric and the down. The downs touch the nonwoven fabric and would penetrate it if the down density were insufficient.
  • a nonwoven fabric per se of fibers with a titre ⁇ 0.15 dtex without the need for thermal consolidation or lamination with further layers, in particular fabric layers or stronger nonwoven fabric layers, can prevent the leakage of down.
  • Multicomponent fibers are filaments of at least two different parallel filaments which have phase boundary and are fissile interconnected.
  • the multicomponent fibers are split into continuous filaments with a titre of less than 0.15 dtex.
  • the filaments have a titer ⁇ 0.15 dtex.
  • the nonwoven fabric has as filament component substantially or exclusively filaments with a corresponding titer.
  • Such nonwovens may have smaller local areas in which multi-component fibers were not or only partially cleaved. With a sufficient mechanical cleavage, in particular by means of water jet treatment, but nonwovens can be obtained, which consist almost exclusively of single filaments.
  • At least 80%, in particular at least 90%, at least 95%, at least 98% or about 100% of individual filaments are present, based on the total volume of the fibers.
  • the proportion can be determined microscopically by examining randomly selected sections of a nonwoven fabric.
  • the cleavage takes place in continuous filaments with a titre of less than 0.14 dtex, more preferably less than 0.12 dtex or less than 0.11 dtex.
  • the titer is preferably greater than 0.01 dtex or greater than 0.02 5 dtex.
  • the titre of all continuous filaments is preferably between 0.01 dtex and 0.15 dtex, preferably between 0.02 dtex and 0.12 dtex, or between 0.03 dtex and 0.11 dtex.
  • the average denier of the continuous filaments is between 0.01 dtex and 0.15 dtex, preferably between 0.025 dtex and 0.125 dtex, in particular between 0.03 dtex and 0.11 dtex.
  • the nonwoven fabric contains, as continuous filament component, a filament mixture, in particular of two or three different filament types.
  • a filament mixture in particular of two or three different filament types.
  • two or more continuous filament types having different titers are contained.
  • the nonwoven fabric contains at least two components and thereby endless filaments which have a linear density of less than 0.075 dtex, preferably less than 0.065 dtex.
  • the titer of a first fiber component is preferably between 0.80 dtex and 0.15 dtex, preferably between 0.80 dtex and 0.125 dtex, and the titer of a second fiber component is between 0.01 dtex and 0.075 dtex, preferably between 0.02 dtex and 0.065 dtex.
  • the difference between the titers of both components preferably differs by at least 0.02 dtex.
  • the proportion of the lower denier fibers is at least 5 vol.% Or at least 10 vol.%, In particular at least 20 vol.%.
  • the number of fiber strands of the first and second fiber components is the same. If the titer of the first fibers is twice that of the second fibers, volume ratios of about 2: 1 will be obtained, ie about 70:30.
  • the down density is not limited only by the fine fibers but also by the special manufacturing process with mechanical splitting of Multi-component fibers is achieved, through which a particularly dense and homogeneous mixing and intertwining of the filaments is achieved.
  • the nonwoven fabric has a basis weight of 70 g / m 2 to 200 g / m 2 .
  • the nonwoven fabric has a basis weight of 90 g / m 2 to 180 g / m 2 , in particular from 100 g / m 2 to 160 g / m 2 or from 110 g / m 2 to 150 g / m 2 .
  • the basis weight is at least 70 g / m 2 or at least 90 g / m 2 , more preferably at least 110 g / m 2 , in order to ensure a high mechanical stability and down-tightness.
  • the basis weight is not greater than 200 g / m 2 , not greater than 160 g / m 2 or in particular not greater than 160 g / m 2 in order to achieve sufficient porosity associated with air and moisture permeability.
  • a nonwoven fabric having two fiber components, preferably split bicomponent fibers, wherein the titer of a first fiber component between 0.08 dtex and 0.15 dtex and the titer of a second fiber component is between 0.01 dtex and 0.075 dtex, wherein the proportion the lower denier fibers are at least 10% by volume combined with a basis weight of from 70 g / m 2 to 200 g / m 2 , in particular from 90 g / m 2 to 180 g / m 2 .
  • the nonwoven fabric is obtainable by a spinning process in which multicomponent fibers are laid down into a nonwoven fabric, after which the multicomponent fibers are split into the continuous filaments and the nonwoven fabric is mechanically consolidated into a nonwoven fabric.
  • a spinning process in which multicomponent fibers are laid down into a nonwoven fabric, after which the multicomponent fibers are split into the continuous filaments and the nonwoven fabric is mechanically consolidated into a nonwoven fabric.
  • the filaments have irregular cross-sections, which are due to the cleavage process.
  • the individual filaments are particularly closely intertwined.
  • the multicomponent fibers were prepared by melt spinning.
  • melt spinning thermoplastic polymers are melted and spun into fibers. This method enables a particularly simple and reliable production of nonwoven fabrics from multicomponent fibers.
  • the multicomponent fibers preferably have two, three or more different endless filaments. More preferably, the multicomponent fibers are bicomponent fibers.
  • the multicomponent fibers in particular the bicomponent fibers, have a cake-shaped (orange, "PIE", Pie) structure.
  • the structure preferably has 24, 32, 48 or 64 segments.
  • the multicomponent fiber decomposes into a corresponding number of individual endless filaments (single filaments).
  • the segments preferably contain alternating polymers.
  • hollow-pie structures that can also have an asymmetrically axially extending cavity. Pie structures, in particular hollow-pie structures, are advantageous because they can be split particularly easily.
  • the individual filaments have an irregular cross section, which increases the internal strength of the nonwoven fabric.
  • cake or "pie” actually describes the configuration of the spinneret in such highly fine, split fibers, but the actual cross section of the filaments only approximately.
  • Such structures are available in the prior art and can be processed uniformly and in a simple manner.
  • the weight per unit area is at least 110 g / m 2 .
  • the fiber-forming polymers of the multicomponent fibers are preferably thermoplastic polymers.
  • the multicomponent fibers preferably have components which are selected from polyesters, polyamides, polyolefins and / or polyurethanes. Particularly preferred are bicomponent fibers with a polyester component and a polyamide component.
  • the multicomponent fibers contain continuous filaments of at least two thermoplastic polymers (in different components).
  • the multicomponent fibers thereby comprise at least two incompatible polymers.
  • Incompatible polymers are to be understood as meaning those polymers which, in combination, give no or only conditionally or poorly adhering pairings.
  • Such a multicomponent fiber has a good cleavability in elementary filaments and allows an advantageous ratio of strength to basis weight.
  • incompatible polymer pairs polyolefins, polyesters, polyamides and / or polyurethanes are preferably used in a combination that results in no or only partially or heavily adhesive pairings.
  • Polymer pairs with at least one polyamide or with at least one polyester, in particular polyethylene terephthalate, are preferred because of their conditional bondability.
  • Polymer pairs with at least one polyolefin are preferred because of their poor tackiness.
  • Combinations of polyesters, preferably polyethylene terephthalate, polylactic acid and / or polybutylene terephthalate, with polyamides, preferably polyamide 6, polyamide 66, polyamide 46 have proved to be particularly preferred, if appropriate in combination with one or more further components to the abovementioned components, preferably selected from polyolefins. These combinations have excellent cleavability. Very particular preference is given to combinations of polyethylene terephthalate and polyamide 6 or of polyethylene terephthalate and polyamide 66.
  • polymer pairs which contain at least one polyolefin, in particular in combination with at least one polyester or polyamide.
  • Polyamide 6 / polyethylene, polyethylene terephthalate / polyethylene, polypropylene / polyethylene, polyamide 6 / polypropylene or polyethylene terephthalate / polypropylene are preferred.
  • the volume ratio of the first to the second continuous filaments is between 90:10 and 10:90, preferably between 80:20 and 20:80.
  • the average cross-sectional area of the filaments could be less than 15 ⁇ m 2 or less than 10 ⁇ m 2 .
  • the cross-sectional area of cut filaments can be determined microscopically.
  • the diameter of the continuous filaments can theoretically be determined from the titers, taking into account the densities, the indication of the fiber diameter being less meaningful for edged filaments.
  • Suitable multicomponent fibers for producing continuous filaments by means of splitting are known in the art.
  • the production of such multicomponent fibers is described inter alia in the FR 2 749 860 A or DE 10 2014 002 232 A1 described.
  • To produce such spunbonded nonwovens it is possible, for example, to use a Reicofil 4 spunbonded system from Reifen Reifen Reifenberger, DE.
  • the polymers form the fiber-forming component of the fibers.
  • the fibers may also contain conventional additives. Additives are added regularly to such fiber polymers to modify processability in the production or properties of the fibers.
  • the use of additives also allows adaptation to customer-specific requirements. Suitable additives may, for example, be selected from the group consisting of dyes, antistatic agents, antimicrobial agents such as copper, silver or gold, hydrophilicizing agents or water repellents. These may be present, for example, in an amount of up to 10% by weight, up to 5% by weight or up to 2% by weight, in particular between 150 ppm to 10% by weight.
  • the nonwoven fabric was mechanically consolidated.
  • the mechanical consolidation includes fluid jet strengthening.
  • the composite of fibers is made by frictional engagement or by a combination of frictional and positive engagement.
  • the solidification is preferably carried out by the close mixing of the filaments.
  • the multicomponent filaments are preferably also split into continuous filaments.
  • the fluid jet solidification takes place under the action of pressure and fluids.
  • the solidification takes place by processing with pressurized fluids, in particular liquids or gases.
  • the mechanical hardening can additionally be effected by further methods, such as pressing, in particular by calendering.
  • splitting of the multicomponent fibers preferably takes place simultaneously.
  • the solidification is carried out long enough and with sufficient strength.
  • the multicomponent filaments are preferably split into continuous filaments.
  • a suitable combination with further mechanical consolidation processes can also be carried out in order to split the multicomponent fibers completely or at least as far as possible. At the same time an intimate mixing and intertwining of the individual filaments is achieved.
  • the solidification comprises fluid jet strengthening.
  • the fluid is a liquid, especially water.
  • hydroentanglement is particularly preferred. Water is preferred over other fluids because it leaves no residue, is readily available, and allows the nonwoven fabrics to be dried well.
  • a stored nonwoven is exposed under high pressure to a jet of water, whereby the nonwoven is firstly compacted into a nonwoven fabric, and on the other hand, multicomponent fibers are split into individual filaments. It has been found that hydroentanglement is particularly suitable for achieving intimate intertwining of the continuous filaments, thereby achieving good mechanical properties and also improving down-density.
  • the nonwoven fabric preferably has a tear propagation resistance according to DIN EN 13937-2 of 4 to 12 N, in particular of 5 to 12 N or of 6 to 10 N.
  • a solidification can be done for example by needling and / or calendering.
  • pre-consolidation takes place by needling and / or calendering, followed by hydroentanglement.
  • the calendering is carried out at a sufficiently low temperature, so that no thermal solidification takes place while bonding the fibers.
  • the nonwoven fabric was not thermally consolidated surface. This means that it was not consistently, so over the entire nonwoven fabric surface, subjected to a temperature treatment in which fibers or a hot melt adhesive were softened so much that fibers stick together.
  • the thermal bonding of fibers occurs by material bonding, whereby the fibers are connected by adhesion or cohesion.
  • a nonwoven fabric without thermal consolidation is advantageous because the softness and elasticity is retained.
  • the mechanical properties change significantly and in a manner that is unfavorable to textile applications. In particular, the nonwoven fabric becomes more rigid, that is less elastic and soft, and less porous, so that the air and moisture permeability decreases.
  • the nonwoven fabric was not chemically solidified surface. This means that the fibers were not bonded together by a chemical reaction and in particular were not crosslinked with a binder. No covalent bonds were created between fibers.
  • the nonwoven fabric could only be thermally and / or chemically consolidated in partial areas (locally).
  • the solidification can be done for example in the form of a dot pattern. In order to obtain the advantageous typical nonwoven properties, however, at most a small portion of the nonwoven fabric should be solidified, for example less than 30%, less than 10% or less than 5% of the total area.
  • the down-density is also given in the non-solidified areas. Local thermal consolidation is not useful and is not required to achieve down-density. It is but according to the invention preferred that the nonwoven fabric is not thermally or chemically solidified at all.
  • the nonwoven fabric may be post-treated after solidification by conventional methods, for example by drying and / or shrinking.
  • the nonwoven fabric is then formed into an envelope into which the downs are incorporated and entrapped.
  • the multicomponent fibers have a cake-like (orange) structure and are cleaved into continuous filaments having a titer of less than 0.12 dtex, wherein the mechanical consolidation comprises hydroentanglement and wherein the nonwoven fabric has a basis weight of from 70 g / m2 to 200 g / m 2 .
  • bicomponent fibers in particular of a polyester component and a polyamide component, are preferably used.
  • the nonwoven fabric has an average pore size of 5 .mu.m to 20 .mu.m and / or a maximum pore size of 10 .mu.m to 50 .mu.m, measured with a pore size meter PSM 165 TOPAS, DE, according to the manufacturer's instructions in accordance with ASTM E 1294-89 and ASTM F 316-03.
  • the thickness of the nonwoven fabric is preferably between 0.20 mm and 0.60 mm, in particular between 0.25 mm and 0.50 mm, measured according to DIN EN 964-1.
  • the maximum tensile strength (maximum tensile strength) in all directions is preferably at least 150 N / 5 cm, measured according to EN 13934-1.
  • the maximum tensile strain in all directions is at least 20%, preferably at least 30%, measured according to DIN EN 13934-1.
  • the nonwoven fabric is preferably characterized by a very good water absorption. This is preferably at least 250 ml / m 2 , in particular more than 350 ml / m 2 measured according to DIN 53923 in analogy for nonwovens.
  • the down density is maintained even with prolonged use and conventional mechanical stress. It has been found that the down density is maintained when the nonwoven fabric is washed more often. Preferably, the nonwoven fabric is also down after 5, 10 or 20 household washes according to DIN EN ISO 6330 in the sense of DIN EN 12132-1.
  • the air permeability according to EN ISO 9237: 1995-12A is preferably at least 20 mm / s, preferably at least 30 mm / s, measured at a test area of 20 cm 2 and a differential pressure of 200 Pa, preferably at an average of 10 or 50 individual measurements.
  • the nonwoven fabric has a basis weight of 90 g / m 2 to 160 g / m 2 , an air permeability according to EN ISO 9237: 1995-12A of at least 20 mm / s and a tear strength according to DIN EN 13937-2 of 4 to 12 N. on.
  • the down-density can be achieved with very fine fibers and relatively low basis weights, so that sufficient air permeability for textile applications is achieved.
  • the nonwoven fabric has at least 12,000 km / m 2 of individual filaments per unit area, more preferably at least 13,500 km / m 2 or at least 15,000 km / m 2 .
  • the number of individual filaments per unit area can be calculated from the basis weight determined and the fineness of the individual filaments (in dtex), assuming that the multicomponent fibers are completely split up. It has been found that by setting such a relatively high number of filaments per surface with high-fine fibers, a high down-tightness can be achieved.
  • the nonwoven fabric preferably contains endless filaments which have a denier of less than 0.075 dtex or consists of such fibers.
  • the nonwoven fabric consists of 32 PIE multicomponent fibers or contains such fibers.
  • the nonwoven fabric per se is suitable for use in accordance with the invention. Nevertheless, it is conceivable to reinforce the nonwoven fabric with additional textile layers.
  • the use according to the invention can be carried out, for example, from a laminate of the nonwoven fabric with at least one further layer, for example one or two further layers. It is preferred that the nonwoven fabric directly adjacent to the down and thereby forms a barrier.
  • the nonwoven fabric could be provided on the outside facing away from the down with at least one further layer, which gives the laminate further desired properties, such as moisture protection or increased mechanical strength.
  • the purpose of use that is, the achievement of down density, is achieved by the non-woven fabric per se, which forms the physical barrier for the down.
  • Additional layers, especially on the outside are preferably applied for a different purpose, that is, they do not improve the down density or only slightly.
  • the invention also provides a down filled textile product, in particular selected from bedding, jacket, upholstery, mattress or sleeping bag, comprising a textile cover and down contained therein.
  • the sheath comprises a continuous filament nonwoven fabric to prevent feather leakage, which nonwoven fabric is obtainable by a spinning process wherein multicomponent fibers are laid down into a nonwoven web, after which the multicomponent fibers are split into continuous filaments having a titer below 0.15 dtex and the nonwoven web is solidified by mechanical consolidation, comprising a fluid jet solidification, to form a nonwoven fabric, wherein the nonwoven fabric is not thermally or chemically solidified.
  • the wrapper is a textile ply having a suitable shape for keeping down in it.
  • the textile shell could consist essentially of the nonwoven fabric.
  • the nonwoven fabric forms at least the part of the textile casing, through which the storage of the down and separation from the environment takes place.
  • the textile cover may be modified for other purposes, for example, with decorative elements or closure means, such as buttons or zippers, be equipped.
  • the textile product is preferably a bedding, jacket, a cushion, a mattress or a sleeping bag.
  • the textile product is a bedding product. Because of the down-tightness in combination with the good mechanical properties, and in particular the high softness and elasticity, the nonwovens are particularly well suited as body pads or pads, such as duvets, pillows or mattress pads.
  • the down are goose down. These penetrate textile casings because of their hardness and shape particularly easily. It has been found that the use according to the invention with the special nonwovens makes it possible to store even goose down down.
  • the filling may also contain other customary fillers, such as feathers or synthetic fillers. Down is often used for textile applications as blends with feathers.
  • the proportion of down on the filling is preferably at least 30% by weight or at least 50% by weight, in particular at least 70% by weight.
  • the down-proof sealing may be accomplished, for example, by thermal sealing, stitching, gluing or other conventional methods. Since in particular spinnable and thus thermoplastically processable polymers are used, sealing thermal joining methods such as ultrasonic sewing or welding are particularly preferred.
  • the nonwoven fabrics according to the invention are highly advantageous because they are not only down-proof, but also regularly offer high protection against allergens, such as pollen or house dust, or mosquito bites.
  • allergens such as pollen or house dust, or mosquito bites.
  • the latter is particularly advantageous because tissues generally do not provide protection against mosquito bites.
  • the inventively usable nonwovens thus provide an overall high protection against disturbing environmental influences.
  • the nonwoven fabric is characterized by an advantageous combination of properties.
  • the mechanical properties for example with regard to maximum tensile strength, maximum tensile elongation, isotropy, expansion modulus or tear propagation resistance, are excellent and readily allow conventional applications in the textile sector.
  • the nonwoven fabric has advantageous properties especially for typical textile applications such as absorption, wash shrinkage or pore size.
  • a combination of advantageous properties in conjunction with high down density can be achieved without thermal or chemical bonding and even with low basis weight.
  • it is advantageous that the nonwoven fabric can be produced in a simple manner and no special processing steps, such as lamination, or chemical aftertreatment, are required.
  • the materials for its production especially multi-component fibers and corresponding continuous filaments, are easily accessible and processable.
  • the nonwoven fabric according to the invention has a very good down density, while comparable nonwoven fabrics with somewhat thicker fibers have no down density. It was surprising that the down density does not increase in proportion to the fiber fineness, but that nonwovens with fibers of a certain fiber thickness are unsuitable for storing down, while fibers with higher fineness suddenly have a high down density. It was not to be expected that especially with very fine fibers the down density would suddenly be reached. Rather, one would have expected that very fine fibers could no longer provide the hard and pointed down quills with sufficient mechanical strength. Thus, it is possible by the invention, only mechanically bonded nonwoven fabrics for storage of Down to use. The invention thereby solves the problems described in the introduction.
  • Figures 1 to 4 are micrographs of a prior art nonwoven fabric pierced by a down feather.
  • illustration 1 shows a typical hard, pointed barbed down keel piercing a prior art nonwoven fabric at 100x magnification.
  • Figure 2 shows a typical barbed down feather in 2000x magnification. The radius of the tip is about 3.6 microns and the diameter below the tip about 19.1 microns.
  • Figure 3 shows a nonwoven fabric according to the prior art, which is pierced by a down keel, in 100-fold magnification.
  • Figure 4 shows the hole in the nonwoven fabric according to the prior art Figure 3 , which was pierced by a down keel, in 100x magnification.
  • nonwovens with a bicomponent spunbonded web of bicomponent fibers having a cake form cross section are described below by way of example.
  • Two nonwovens which can be used according to the invention were prepared with 32 individual filaments (type "PIE 32") and basis weights of about 100 g / m 2 and 130 g / m 2 (examples 2 and 4).
  • PIE 32 32 individual filaments
  • basis weights 100 g / m 2 and 130 g / m 2
  • Examples 1 and 3 Two nonwovens from bicomponent fibers having 16 individual filaments (type "PIE16”) and basis weights of about 100 g / m 2 and 130 g / m 2 was produced (Examples 1 and 3).
  • the components and manufacturing conditions are summarized below.
  • Raw materials shares Polyester, INVISTA, DE 70 Polyamide 6, BASF, DE 30 Hydrophilic, CLARIANT, CH 0.05 in PET TiO 2 , CLARIANT, CH, Renol Weiss TM 0.05 in PET Antistatic, CLARIANT, CH, Hostatstat TM 0.05 in PA6 extruder: PET, zones 1-7 270-295 ° C PA6, zones 1-7 260-275 ° C Volume, speed, throughput PET: 2x10cm 3 / U, 16.56 rpm, 0.923g / L per min Volume, speed, throughput PA6: 2x3cm 3 / U, 26.25 rpm, 0.377 g / L per min Total throughput: 1.3 g / Lpromin (71/29) Nozzle Type: PIE16 or PIE 32, pneumatic stretching
  • Pre-consolidation by needling with 35 stitches / cm 2 and subsequent calendering with steel rollers smooth / smooth, at 160-170 ° C and 65-85N line pressure.
  • the nonwoven fabric is dried with a cylindrical through-air dryer at 190 ° C and partially shrunk to ensure a possible washing shrinkage of ⁇ 3% in the first cooking wash.
  • the production speeds in the process steps after discharge from the nozzles depend on the desired basis weight.
  • the nonwoven fabrics of the type PIE32 (Examples 2 and 4) which can be used according to the invention show improved wash resistance, allergen tightness and mosquito puncture resistance in comparison to the comparative nonwoven fabrics of the type PIE16 (Examples 1 and 3).
  • the down-density test was carried out using the simulated cushion stress test in accordance with DIN EN 12132-1. This standard is used to test the down density of fabrics and is applicable analogously to nonwovens. According to Part 1, a simulated pad stress was performed. The test was carried out on two pillows whose dimensions were 120 mm x 170 mm. For pillow 1, the longer side runs in the direction of 1. For pillow 2, the longer side runs in direction 2. The filling material used was white, new, pure goose down and feathers class I, 90% down / 10% feathers. The test material complies with EN 12934 - marking the composition of finished feathers and down. As a result, the number of down / feathers or parts penetrated after 2700 revolutions was determined. According to the definition, a sample that yields a result in all directions of 20 or less is down-down.
  • Example 2 For the nonwoven fabric according to Example 2 (PIE32, 97 g / m 2 basis weight), in the direction 1 a result of 16 (one particle stuck in the fabric, 15 particles in the plastic bag) and in the direction 2 a result of 34 (2 particles stuck in the fabric , 32 particles in the plastic bag).
  • Example 4 For the nonwoven fabric according to Example 4 (PIE32, 127 g / m 2 ), a result in direction 1 of 9 (2 particles stuck in fabric, 7 particles in plastic bag) and in direction 2 of 3 (0 particles stuck in fabric, 3 particles in plastic bag).
  • the results show that the nonwoven fabric of the present invention has excellent down-tightness. Even the down density of a nonwoven fabric according to the invention having a basis weight of 100 g / m 2 is high, while the down density at 130 g / m 2 completely corresponds to the requirements for bedding products.
  • a nonwoven fabric was tested from a mixture of continuous filaments with a linear density of 0.1 dtex and 0.2 dtex.
  • the nonwoven fabric was prepared analogously to Example 1, but had a basis weight of 120 g / m 2 and was additionally equipped with a stabilizing coating of polyurethane (15 g / m 2 ).
  • the result in the simulated cushion stress test in accordance with DIN EN 12132-1 was 1 in 42 (5 particles stuck in the textile material, 37 particles in the plastic bag) and in the direction 2 of 35 (3 particles stuck in the textile material, 32 particles in the plastic bag) receive.
  • the nonwoven thus has no down density, which is suitable for textile applications.
  • Fig. 2 shows a typical pointed quill with a tip that is about 3.6 microns wide. The circumference of the tip is significantly smaller than the average pore sizes between 8 and 25 microns of all four nonwovens of Examples 1 to 4. Therefore, it would be expected that the quills would drilled through all four nonwovens. In addition, it would have been expected that the finer fibers would provide even less resistance to a hard and pointed object.
  • the particular down density of the inventively employable nonwoven fabrics could be caused by the internal structure of closely interlaced filaments.
  • Nonwovens were made from 32 PIE bicomponent fibers or blends with 50% 16 PIE and 32 PIE bicomponent fibers of different basis weights.
  • the down densities of the nonwoven fabrics were as described in Example 6 with the simulated pad stress test for tissue in analogy to DIN EN 12132-1 determined. From the fiber fineness of the individual filaments, it was calculated how many individual filaments per unit area of nonwoven fabric are present (1 dtex corresponds to 10 g / km).
  • the fibers and split filaments had the following properties:
  • PIE16 Fibers before splitting 2.4 dtex Filaments by splitting: PET 8x 0.2 dtex / PA6 8x 0.1 dtex average diameter filaments: 0.15 dtex
  • PIE32 Fibers before splitting 2.4 dtex Filaments after splitting: PET 16x 0.1 dtex / PA6 16x 0.05 dtex average diameter filaments: 0.075 dtex
  • PIE16 about 66.7 km / g
  • PIE32 about 133.3 km / g
  • Example 6 it is believed that a sample is down-proof if a score of 20 or fewer passes is achieved in all directions.
  • the nonwovens B, C, F, G and H are down-proof.
  • the nonwovens also have good air permeability and are therefore suitable for textile applications, such as bedding.
  • the results show that it is advantageous to match the filament fineness and the basis weight so that there is a sufficiently high number of fibers per unit area. It may be advantageous to adjust the basis weight when using relatively fine filaments so that a desired air permeability is given.

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Claims (15)

  1. Utilisation d'un matériau non-tissé de filaments continus pour éviter la sortie de duvet d'un produit textile rempli avec du duvet, le matériau non-tissé pouvant être obtenu par un procédé de filage selon lequel des fibres à plusieurs composants sont mises sous la forme d'un non-tissé, puis les fibres à plusieurs composants sont divisées en filaments continus ayant un titre inférieur à 0,15 dtex et le non-tissé est consolidé en un matériau non-tissé par consolidation mécanique, comprenant une consolidation par un jet de fluide, le matériau non-tissé n'étant pas consolidé thermiquement ou chimiquement en toute surface.
  2. Utilisation selon la revendication 1, dans laquelle les fibres à plusieurs composants sont divisées en filaments continus ayant un titre inférieur à 0,12 dtex.
  3. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle le matériau non-tissé contient des filaments continus qui présentent un titre inférieur à 0,075 dtex.
  4. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle le matériau non-tissé présente un poids superficiel de 70 g/m2 à 200 g/m2, de préférence de 90 g/m2 à 150 g/m2.
  5. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle les fibres à plusieurs composants sont des fibres à deux composants et/ou dans laquelle les fibres à plusieurs composants comprennent des composants qui sont choisis parmi les polyesters, les polyamides, les polyoléfines et/ou les polyuréthanes.
  6. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle les fibres à plusieurs composants sont des fibres à deux composants constituées par un composant polyester et un composant polyamide.
  7. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle les fibres à plusieurs composants présentent une structure en forme de gâteau (en forme d'orange), qui comprend de préférence 24, 32, 48 ou 64 segments, et de manière particulièrement préférée au moins 32 segments.
  8. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle le matériau non-tissé présente une taille de pore moyenne de 5 µm à 20 µm et/ou une taille de pore maximale de 10 µm à 50 µm, mesurée selon ASTM E 1294-89 et ASTM F 316-03 avec un appareil de mesure de pores PSM 165 de la société Topas, Allemagne.
  9. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle le matériau non-tissé présente une perméabilité à l'air d'au moins 20 mm/s, de préférence d'au moins 30 mm/s, mesurée selon EN ISO 9237:1995-12A avec une surface d'essai de 20 cm2 et une pression différentielle de 200 Pa.
  10. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle le matériau non-tissé comprend au moins 12 000 km/m2 de filaments individuels, de préférence au moins 13 500 km/m2 de filaments individuels.
  11. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle le matériau non-tissé présente un poids superficiel de 90 g/m2 à 160 g/m2, une perméabilité à l'air selon EN ISO 9237:1995-12A d'au moins 20 mm/s, et comprend au moins 12 000 km/m2 de filaments individuels.
  12. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle les fibres à plusieurs composants présentent une structure en forme de gâteau (en forme d'orange) et sont divisées en filaments continus ayant un titre inférieur à 0,12 dtex, la consolidation mécanique comprenant une consolidation par un jet d'eau et le matériau non-tissé présentant un poids superficiel de 70 g/m2 à 200 g/m2.
  13. Utilisation selon au moins l'une quelconque des revendications précédentes, dans laquelle le matériau non-tissé est étanche au duvet dans un test de sollicitation de coussin simulée selon DIN EN 12132-1, partie 1, avec un mélange de 90 % de duvet d'oie et 10 % de plumes d'oie.
  14. Produit textile rempli avec du duvet, notamment choisi parmi les produits de literie, les vestes, les rembourrages, les matelas ou les sacs de couchage, comprenant une enveloppe textile et du duvet contenu dans celle-ci,
    l'enveloppe comprenant un matériau non-tissé de filaments continus pour éviter la sortie de duvet, le matériau non-tissé pouvant être obtenu par un procédé de filage selon lequel des fibres à plusieurs composants sont mises sous la forme d'un non-tissé, puis les fibres à plusieurs composants sont divisées en filaments continus ayant un titre inférieur à 0,15 dtex et le non-tissé est consolidé en un matériau non-tissé par consolidation mécanique, comprenant une consolidation par un jet de fluide, le matériau non-tissé n'étant pas consolidé thermiquement ou chimiquement.
  15. Procédé de fabrication du produit textile rempli avec du duvet selon la revendication 14, comprenant les étapes suivantes :
    (a) la préparation de l'enveloppe textile qui comprend le matériau non-tissé de filaments continus,
    (b) le remplissage de l'enveloppe avec le duvet, et
    (c) la fermeture étanche au duvet de l'enveloppe.
EP16196208.9A 2015-11-09 2016-10-28 Utilisation de non-tissé à filament continu pour prévenir les fuites de duvet dans les produits textiles garnis de duvet Not-in-force EP3165655B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15193633.3A EP3165654A1 (fr) 2015-11-09 2015-11-09 Utilisation de non-tisse a filament continu destine a retenir les plumes dans des produits textiles remplis de plumes

Publications (3)

Publication Number Publication Date
EP3165655A1 EP3165655A1 (fr) 2017-05-10
EP3165655B1 true EP3165655B1 (fr) 2018-09-12
EP3165655B8 EP3165655B8 (fr) 2018-12-26

Family

ID=54477935

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15193633.3A Withdrawn EP3165654A1 (fr) 2015-11-09 2015-11-09 Utilisation de non-tisse a filament continu destine a retenir les plumes dans des produits textiles remplis de plumes
EP16196208.9A Not-in-force EP3165655B8 (fr) 2015-11-09 2016-10-28 Utilisation de non-tissé à filament continu pour prévenir les fuites de duvet dans les produits textiles garnis de duvet

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15193633.3A Withdrawn EP3165654A1 (fr) 2015-11-09 2015-11-09 Utilisation de non-tisse a filament continu destine a retenir les plumes dans des produits textiles remplis de plumes

Country Status (8)

Country Link
US (1) US20170130378A1 (fr)
EP (2) EP3165654A1 (fr)
JP (1) JP2017095852A (fr)
KR (1) KR101903954B1 (fr)
CN (1) CN107059250A (fr)
CA (1) CA2947826A1 (fr)
DK (1) DK3165655T3 (fr)
TW (1) TW201727007A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3912687A1 (fr) 2020-05-20 2021-11-24 Carl Freudenberg KG Masque facial pourvu de moyen de filtrage à filaments à composants multiples
EP4088602A1 (fr) 2021-05-12 2022-11-16 Carl Freudenberg KG Masque facial avec milieu filtrant à partir de filaments multicomposant clivés et fibres obtenues par extrusion soufflage
EP4108820A1 (fr) 2021-06-21 2022-12-28 Carl Freudenberg KG Sac alimentaire non-tissé fabriqué à partir de filaments multicomposants

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US20210016536A1 (en) * 2018-03-12 2021-01-21 Consultation Hanco Corp Method for improving dryness of insulation material and articles comprising improved insulation materials
KR102112860B1 (ko) 2018-09-17 2020-05-19 풍림유화공업(주) 다운용 무기계 항균소취제의 제조방법 및 이를 이용하여 제조되는 무기계 항균소취제
JP7048033B2 (ja) * 2019-05-24 2022-04-05 日清紡テキスタイル株式会社 布団
CN114225432B (zh) * 2021-12-20 2024-04-02 江西泰美玩具有限公司 一种毛绒玩具棉絮填充用蓬松装置
WO2024197722A1 (fr) * 2023-03-30 2024-10-03 台湾科德宝宝翎不织布股份有限公司 Matériau composite en non-tissé et produit textile associé

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Publication number Priority date Publication date Assignee Title
EP3912687A1 (fr) 2020-05-20 2021-11-24 Carl Freudenberg KG Masque facial pourvu de moyen de filtrage à filaments à composants multiples
EP4088602A1 (fr) 2021-05-12 2022-11-16 Carl Freudenberg KG Masque facial avec milieu filtrant à partir de filaments multicomposant clivés et fibres obtenues par extrusion soufflage
EP4108820A1 (fr) 2021-06-21 2022-12-28 Carl Freudenberg KG Sac alimentaire non-tissé fabriqué à partir de filaments multicomposants

Also Published As

Publication number Publication date
EP3165654A1 (fr) 2017-05-10
KR20170054307A (ko) 2017-05-17
EP3165655B8 (fr) 2018-12-26
JP2017095852A (ja) 2017-06-01
KR101903954B1 (ko) 2018-10-02
EP3165655A1 (fr) 2017-05-10
DK3165655T3 (en) 2019-01-07
US20170130378A1 (en) 2017-05-11
CN107059250A (zh) 2017-08-18
CA2947826A1 (fr) 2017-05-09
TW201727007A (zh) 2017-08-01

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