EP3243947A1 - Vliesstoff, verfahren zur herstellung von vliesstoff und schallschluckmittel - Google Patents

Vliesstoff, verfahren zur herstellung von vliesstoff und schallschluckmittel Download PDF

Info

Publication number
EP3243947A1
EP3243947A1 EP17165953.5A EP17165953A EP3243947A1 EP 3243947 A1 EP3243947 A1 EP 3243947A1 EP 17165953 A EP17165953 A EP 17165953A EP 3243947 A1 EP3243947 A1 EP 3243947A1
Authority
EP
European Patent Office
Prior art keywords
woven fabric
ultrafine fibers
fiber bundle
base portion
resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17165953.5A
Other languages
English (en)
French (fr)
Other versions
EP3243947B1 (de
Inventor
Kota Nakahira
Toshifumi Nagino
Kazufumi Miyatake
Motoi Hatanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of EP3243947A1 publication Critical patent/EP3243947A1/de
Application granted granted Critical
Publication of EP3243947B1 publication Critical patent/EP3243947B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—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 by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838—Ultrafine fibres, e.g. microfibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—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
    • D04H3/016—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
    • D04H3/16—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
    • 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
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length

Definitions

  • the present disclosure relates to a non-woven fabric, non-woven fabric producing method and an acoustic absorbent using an ultrafine fiber of thermoplastic resin.
  • Non-woven fabric has been used in a wide range of fields from consumer products such as clothes, daily commodities, and medical supplies to industrial products.
  • Non-woven fabric is also used for many different purposes, including not only clothing fabrics but filters, absorbents and adsorbents, acoustic absorbents, and heat insulating materials.
  • Many of these non-woven fabrics are configured from thermoplastic resin fibers having a diameter ranging from several micrometers to several tens of micrometers, though it varies with the intended use.
  • a more recent example is a fiber structure using an ultrafine fiber having a diameter of 1 ⁇ m or less, as disclosed in JP-A-2013-139655 .
  • a non-woven fabric having a fiber diameter as small as 1 ⁇ m or less has a much larger fiber surface area than traditional non-woven fabrics of the same fiber weight, and such non-woven fabrics are known to have improved properties (for example, acoustic insulation, and heat insulation).
  • a problem is that the mechanical strength of a fiber decreases as the diameter of the constituent fibers becomes smaller, and the non-woven fabric suffers from poor mechanical strength.
  • One way of reducing the mechanical strength drop is to combine ultrafine fibers with fibers of a larger diameter, as described in, for example, JP-A-2013-147771 .
  • the use of thick fibers with ultrafine fibers is detrimental to the properties developed by using the ultrafine fibers. It might be possible to increase mechanical strength by using a material having a high strength.
  • considering the melt viscosity of resin it is difficult to form an ultrafine fiber using a high-strength resin.
  • the present disclosure is intended to solve the foregoing problems, and to provide a non-woven fabric and an acoustic absorbent having improved mechanical strength without losing the properties developed by using ultrafine fibers.
  • a non-woven fabric that includes a plurality of ultrafine fibers configured from a thermoplastic resin, the non-woven fabric comprising:
  • the non-woven fabric of the first aspect may be such that the plurality of ultrafine fibers has a median size of 1 ⁇ m or less and 0.1 ⁇ m or more.
  • the non-woven fabric of the first or second aspect may be such that the fiber bundle has a width of 0.2 mm or more and 7.5 mm or less.
  • the non-woven fabric of any one of the first to third aspects may be such that the proportion of the fiber bundle in the non-woven fabric is 15% or more and 96% or less.
  • the non-woven fabric of any one of the first to fourth aspects may be such that the fiber bundle has a void fraction of 90% or more and less than 99%.
  • the non-woven fabric of any one of the first to fifth aspects may be such that the fiber bundle has a length of 10 mm or more and 1,000 mm or less.
  • an acoustic absorbent comprising a layer of the non-woven fabric of any one of the first to sixth aspects.
  • a non-woven fabric producing method comprising:
  • the non-woven fabric producing method according to the eight aspect may be such that a melt-blown method is used that blows high-speed hot air to a molten thermoplastic resin, and stretches the thermoplastic resin to form the plurality of ultrafine fibers.
  • the fiber bundle has a lower void fraction than the base portion. This makes it possible to provide high mechanical strength without losing the properties developed by using ultrafine fibers, despite that the non-woven fabric is configured from ultrafine fibers.
  • a non-woven fabric of an embodiment of the present disclosure is a non-woven fabric 11 configured from a plurality of ultrafine fibers 9 of a thermoplastic resin, and the non-woven fabric 11 is configured to include a base portion 13 and a fiber bundle 12.
  • the base portion 13 is formed by entangling some of the plurality of ultrafine fibers 9. Specifically, the base portion 13 is formed of the plurality of ultrafine fibers 9 entangled in an irregular fashion.
  • the fiber bundle 12 is where other ultrafine fibers in the plurality of ultrafine fibers 9 are entangled and bundled to one another.
  • the fiber bundle 12 is also entangled with the base portion 13.
  • the fiber bundle 12 is where the plurality of ultrafine fibers 9 forms a dense bundle by being irregularly entangled to one another.
  • the fiber bundle 12 is also irregularly entangled with the base portion 13.
  • the fiber bundle 12 has a lower void fraction than the base portion 13 so that the ultrafine fibers 9 exist with a higher density in the fiber bundle 12 than in the base portion 13.
  • the non-woven fabric 11 of the embodiment of the present disclosure is produced most suitably by a method that blows high-speed hot air to a molten thermoplastic resin, and stretches the thermoplastic resin to form the ultrafine fibers 9.
  • a typical example of this method is a melt-blown method.
  • the method of production of the non-woven fabric of the embodiment of the present disclosure is not limited to this, and it is possible to use methods, for example, such as a spunbond method, and a spunlace method.
  • FIG. 1 shows an example of a device for producing the non-woven fabric 11 of the embodiment of the present disclosure.
  • the non-woven fabric producing device includes a material feeding unit 100, a material heating unit 101, a hot air generating unit 102, a spinning nozzle 6, and a collection unit 103.
  • FIG. 2 shows an enlarged view of the structure of the spinning nozzle 6.
  • the material feeding unit 100 functions to feed a feedstock 2 to the material heating unit 101 with a resin extruder 4 after a feedstock feeder 1 has supplied the feedstock 2 to a hopper 3.
  • the material feeding unit 100 is configured from the feedstock feeder 1 and the hopper 3.
  • the feedstock feeder 1 continuously supplies a certain quantity of feedstock 2 to the hopper 3.
  • a required amount of feedstock 2 may be supplied to the hopper 3 in advance, without using the feedstock feeder 1.
  • the hopper 3 may be one equipped with a vibration mechanism that inhibits bridging of the feedstock 2.
  • the feedstock 2 of the ultrafine fibers 9 is a thermoplastic resin, which may be, for example, polyolefin resin, polyester resin, polyethylene resin, polycarbonate resin, polylactic acid resin, polyamide resin, polyvinyl resin, polystyrene resin, polyether resin, or engineering plastic.
  • the feedstock 2 is used after being processed into a pellet, a powder, or a pellet-powder mixture.
  • the feedstock 2 may be a thermoplastic resin itself, or a mixture containing one or more different thermoplastic resins.
  • the material heating unit 101 is configured from the resin extruder 4 having a heater 5, and functions to heat melt the feedstock 2 using the heater 5 after the feedstock 2 is supplied into the resin extruder 4 from the material feeding unit 100, and to supply the feedstock 2 to the spinning nozzle 6 at the tip of the resin extruder 4.
  • the material heating unit 101 is configured from the resin extruder 4 and the heater 5.
  • the resin extruder 4 is not limited, and may be one that is suitably selected according to the feedstock 2 used (for example, a monoaxial full-flight screw).
  • the heater 5 is not limited, and may be, for example, a band heater used by being wrapped around the resin extruder 4, as long as the heater 5 has the capacity to heat the feedstock 2 to the melting point or higher temperatures as may be decided according to the extrusion performance of the resin extruder 4.
  • a gear pump (not illustrated) may be installed on the exit side of the material heating unit 101 when high extrusion pressure is needed, or when the discharge amount needs to be accurately controlled.
  • the hot air generating unit 102 is joined to the spinning nozzle 6, and functions to heat gas (for example, compressed air), and send it to the spinning nozzle 6.
  • the mechanism used to generate hot air 8 is not limited, as long as it has the capacity to heat gas to the desired temperature (for example, a torch heater).
  • the gas entering the hot air generating unit 102 may be set so that the gas is expelled out of a hot air discharge hole 111 of the spinning nozzle 6 at a rate of 30 m/s to 150 m/s.
  • the temperature of the hot air 8 may be set to 200°C to 500°C in the case of, for example, polypropylene resin, though the suitable temperature depends on the feedstock 2.
  • the pipe joining the hot air generating unit 102 to the spinning nozzle 6 should be made as short as possible because the temperature of the heated gas tends to decrease before the gas enters the spinning nozzle 6.
  • the spinning nozzle 6 has resin discharge holes 110 through which the molten resin 7 from the material heating unit 101 is discharged, and hot air discharge holes 111 through which the hot air 8 from the hot air generating unit 102 is expelled.
  • the resin discharge holes 110 and the hot air discharge holes 111 are disposed with a certain distance provided in between such holes.
  • the discharge holes 111 are disposed a certain distance away from and above the resin discharge hole 110, as shown in FIG. 2 .
  • the resin discharge holes 110 are disposed at predetermined intervals (pitch 113) in a horizontal direction crossing the discharge direction.
  • the discharge holes 111 are disposed at predetermined intervals (pitch 113) in a horizontal direction crossing the discharge direction.
  • the cross sectional shapes of the resin discharge holes 110 and the hot air discharge holes 111 are not limited, and may be circular or elliptical, or a slit shape.
  • the ultrafine fibers 9 can be stably produced by setting the inner diameter of the resin discharge holes 110 to 0.1 mm to 5 mm, and clogging of the resin discharge holes 110 can be reduced for more stable production of ultrafine fibers 9 by setting the inner diameter of the resin discharge holes 110 to 0.5 mm to 5 mm.
  • the molten resin 7 can be efficiently stretched when the hot air discharge holes 111 have an inner diameter of 0.1 mm to 5 mm.
  • Clogging due to an inflow of the molten resin 7 into the hot air discharge holes 111 can be reduced when the hot air discharge holes 111 have an inner diameter of 0.5 mm to 3 mm.
  • the molten resin 7 and the hot air 8 can gently meet in the manner shown in FIG. 2 , and it becomes easier to produce long fibers when the resin discharge holes 110 and the hot air discharge holes 111 are separated from each other by a distance of 0.5 mm to 5 mm.
  • the discharge directions of the molten resin 7 and the hot air 8 are typically not parallel to each other, and the molten resin 7 and the hot air 8 meet with an angle.
  • the resin discharge holes 110 and the hot air discharge holes 111 may be provided in separate nozzles, rather than in the same nozzle. In this case, the two nozzles may be disposed adjacent to each other.
  • the resin discharge holes 110 and the hot air discharge hole 111 may be provided in numbers that vary with the spinning range and the spinning amount of ultrafine fibers 9.
  • the resin discharge holes 110 and the hot air discharge hole 111 may be disposed in any fashion, provided that the molten resin 7 can meet the hot air 8 and stretch.
  • stable spinning is possible when the resin discharge holes 110 and the hot air discharge hole 111 are disposed in pair (pair 112) with certain intervals, as shown in FIG. 3 .
  • a collector 10 collects the ultrafine fibers 9 produced, and the non-woven fabric 11 is formed.
  • a roll or a conveyer may be used as the collector 10 when the non-woven fabric 11 needs to be continuously formed into a sheet shape at the collection unit 103.
  • the surface of the collector 10 needs to be a material or a structure that does not cause the airborne ultrafine fibers 9 to slide down the surface, and, for example, a non-woven fabric or a metal mesh may be used for this purpose.
  • the collection unit 103 may be disposed at any spinning distance 104.
  • the spinning distance 104 is too short, the stretched molten resin 7 will be captured by the collection unit 103 before being sufficiently cooled, and the fibers will fuse with each other.
  • the ultrafine fibers 9 cannot reach the collector 10 when the spinning distance 104 is too long.
  • the collection unit 103 is installed at a spinning distance 104 of 100 mm to 5,000 mm.
  • the spinning distance 104 is 500 mm to 5, 000 mm for the production of the fiber bundle 12 with the base portion 13 (described below).
  • the fiber bundle 12 is formed as the ultrafine fibers 9 become entangled in their flight to the collection unit 103 after fiber formation. Because the hot air 8 is flowing fast near the spinning nozzle 6, a plurality of ultrafine fibers 201 near the spinning nozzle 6 travel with the flow of hot air 8 in a relatively straight line, rather than being bent, as shown in FIG. 4 . For this reason, in a typical spinning distance range of less than 500 mm adopted by a melt-blown method, the ultrafine fibers 201 do not easily become entangled, and form a non-woven fabric of only the base portion 13, without forming a fiber bundle, as shown in FIG. 5 .
  • the hot air 8 has a slow flow rate, and encounters air resistance in locations distant from the spinning nozzle 6 (500 mm or a longer range).
  • the ultrafine fibers 202 at such distant locations from the spinning nozzle 6 (500 mm or a longer range) take a complex bent shape, and easily form a bundle as the adjacent ultrafine fibers 202 become entangled with each other, as shown in FIG. 4 .
  • a plurality of fiber bundles 12, and the base portion 13 can thus be formed when the spinning distance 104 is 500 mm or more, as shown in FIG. 6 .
  • the non-woven fabric 11 has a structure in which a plurality of fiber bundles 12 occur in the base portion 13 in an irregular fashion, as shown in FIG. 7 .
  • the extent of entanglement of the ultrafine fibers 9 varies with the spinning distance 104. A longer spinning distance 104 promotes more entanglement of the ultrafine fibers 9, and makes the fiber bundles 12 wider, increasing the proportion of the fiber bundles 12 in the non-woven fabric 11.
  • the spinning nozzle 6 has laterally disposed resin discharge holes 110, the ultrafine fibers 9 produced through the adjacent resin discharge holes 110 becomes more likely to become entangled as the pitch 113 of the resin discharge holes 110 becomes smaller. This widens the fiber bundles 12, and increases the proportion of the fiber bundles 12.
  • the width or the proportion of the fiber bundles 12 can be controlled by adjusting the spinning distance 104 or the pitch 113 of the resin discharge holes 110.
  • the fiber bundle 12 improves the overall mechanical strength of the non-woven fabric 11. This is because the ultrafine fibers 9 become less likely to deform as the entangled ultrafine fibers 9 mutually restrain the deformation occurring in each ultrafine fiber 9 under an applied tensile or compression load on the fiber bundle 12. This produces the same effect as that obtained when thick fibers are contained.
  • the fiber bundle 12 has a width of preferably 0.2 mm to 7.5 mm, more preferably 3 mm to 7.5 mm, further preferably 3 mm to 4 mm. Increasing the width of the fiber bundle 12 improves the mechanical strength of the non-woven fabric 11.
  • the mechanical strength of the fiber bundle 12 itself will be poor when the width is less than 3 mm, and a non-woven fabric having sufficient mechanical strength cannot be produced unless properties such as the median size of the ultrafine fiber 9, and the proportion of the fiber bundles 12 are accurately controlled.
  • the mechanical strength of the fiber bundle 12 itself will be even weaker when the width of the fiber bundle 12 is less than 0.2 mm, and the mechanical strength of the non-woven fabric hardly improves even with the fiber bundles 12.
  • the mechanical strength improves when the width of the fiber bundle 12 is more than 4 mm.
  • the width of the fiber bundle 12 is more than 7.5 mm, a region devoid of ultrafine fibers 9 further increases, and the inner structure of the non-woven fabric becomes simplified. This severely deteriorates the functions developed by using the ultrafine fibers 9.
  • the proportion of fiber bundles 12 is preferably 15% to 96%, more preferably 40% to 96%.
  • the mechanical strength of the non-woven fabric 11 improves as the proportion of fiber bundles 12 increases.
  • the effect of improving the mechanical strength of the non-woven fabric by the formation of fiber bundles 12 becomes weaker when the proportion of fiber bundles 12 is less than 40%, and a non-woven fabric having sufficient mechanical strength cannot be produced unless properties such as the median size of the ultrafine fiber 9, and the thickness of the fiber bundles 12 are accurately controlled.
  • Formation of fiber bundles 12 fails to provide sufficient mechanical strength when the proportion of fiber bundles 12 is less than 15%.
  • a proportion of fiber bundles 12 above 96% improves the mechanical strength.
  • the ultrafine fibers constituting the base portion 13 become greatly reduced, and the base portion 13 will have a region devoid of ultrafine fibers. This deteriorates the functions developed by using the ultrafine fibers.
  • the void fraction of the fiber bundle 12 is preferably 90% or more and less than 99%.
  • the ultrafine fibers 9 become denser as the void fraction of the fiber bundle 12 decreases. This makes it difficult for gases (for example, air) to pass between the ultrafine fibers 9, and the structure becomes similar to that containing thick fibers. The functions developed by using the ultrafine fibers 9 will thus deteriorate when the void fraction of the fiber bundle 12 is less than 90%. With a void fraction of 99% or higher, the ultrafine fibers 9 forming the fiber bundle 12 will be weakly entangled, and the mechanical strength improving effect becomes insufficient.
  • the fiber bundle 12 has a length of preferably 10 mm to 1,000 mm.
  • the fiber bundles 12 are randomly disposed in the non-woven fabric, and some of the fiber bundles 12 are side by side to each other, acting as a skeleton and preventing deformation.
  • the adjoining regions of fiber bundles 12 become smaller, and the fiber bundles 12 fail to function as a skeleton when the length of fiber bundles 12 is less than 10 mm.
  • the ultrafine fibers 9 become overly entangled when forming the fiber bundles 12, and the width or the void fraction of the fiber bundles 12 falls outside of the preferred range. This deteriorates the functions developed by using the ultrafine fibers 9.
  • the ultrafine fibers 9 constituting the non-woven fabric have a median size of 0.1 ⁇ m to 1 ⁇ m. High acoustic absorbent or heat insulation can be obtained when the median size is 1 ⁇ m or less. With a median size of less than 0.1 ⁇ m, the ultrafine fibers 9 will be too weak, and sufficient mechanical strength cannot be obtained even with the fiber bundles 12.
  • the non-woven fabric was measured for modulus of compressive elasticity as an index of mechanical strength evaluation, and for normal incidence sound absorption coefficient as an index for evaluation of properties developed by using the ultrafine fibers.
  • the fiber diameter was measured in a 10,000-times magnified two-dimensional image using a scanning electron microscope (Phenom G2 Pro available from PHENOM-World). The diameter was measured for a total of 200 fibers randomly selected from different locations of a sample, and the median size was calculated. The sample was subjected to Au sputtering in advance to prevent charge up.
  • the width, the length, and the proportion of fiber bundles were measured under a stereomicroscope (SZ61 available from OLYMPUS) in a zoom magnification of 0.67 times.
  • Fiber bundle measurements were taken in a continuous region formed by entangling of a plurality of ultrafine fibers, and in which the void fraction was smaller than the void fraction of the whole non-woven fabric as measured by a void fraction measurement to be described later, more specifically in a part of the continuous region where the transverse length was 0.2 mm or more, and the aspect ratio was 10 or more.
  • a sample was used that had been processed into a thickness of 0.2 mm without altering the density or the inner structure of the non-woven fabric, and the fiber bundles were measured in a randomly selected 1,000-mm 2 measurement area of the sample in a screen.
  • the largest width and the largest length of the fiber bundles in a screen were taken as the fiber bundle width and the fiber bundle length.
  • the proportion of fiber bundles was determined as the area occupied by fiber bundles in an area of the screen with the fibers.
  • the void fraction of the whole non-woven fabric was calculated from the density of the feedstock, and the thickness and the weight of a non-woven fabric that had been processed into a 100 mm x 100 mm size without altering the density or inner structure.
  • the void fractions of the fiber bundle and the base portion are values obtained by dividing the void area by focal depth in a screen showing a 1,000-times magnified two-dimensional image produced by a scanning electron microscope (Phenom G2 Pro available from PHENOM-World). The sample was subjected to Au sputtering in advance to prevent charge up.
  • Modulus of compressive elasticity was measured using a method according to the JIS L-1096: 2010 testing methods for woven and knitted fabrics, using a Texture Analyzer TA.XTplus available from Stable Micro Systems.
  • a non-woven fabric spunbond non-woven fabric available from Asahi Kasei under the trade name Eltas P03020
  • Normal incidence sound absorption coefficient was measured with an acoustic tube (SR-4100 Type-B available from Ono Sokki Co., Ltd.), using a method according to JIS A 1405-2/ISO 10534-2.
  • the sample had a diameter ⁇ of 29 mm, a thickness of 20 mm, and a weight of 0.3 g.
  • the normal incidence sound absorption coefficient of the sample was measured at 1 kHz after the sample was squeezed into a jig adapted to accommodate the sample without a gap.
  • a non-woven fabric formed of fibers with a median size of more than 1 ⁇ m was produced.
  • a polypropylene resin was used as feedstock.
  • the polypropylene resin was heated to 200°C, and 300°C hot air was blown onto the polypropylene resin at a rate of 50 m/s to form fibers, using a spinning nozzle having resin discharge holes of 0.7 mm diameter.
  • the non-woven fabric was formed at a spinning distance of 300 mm.
  • the non-woven fabric produced had a median size of 1.57 ⁇ m, a modulus of compressive elasticity of 66%, and a normal incidence sound absorption coefficient of 36%. There was no fiber bundle that was 0.2 mm or wider.
  • a polypropylene resin was used as feedstock.
  • the polypropylene resin was heated to 240°C, and hot air of the same temperature was blown onto the polypropylene resin at a rate of 60 m/s to form ultrafine fibers 9, using the spinning nozzle 6 having resin discharge holes 110 of 0.1 mm diameter disposed at 0.25-mm intervals.
  • the non-woven fabric 11 was formed at a spinning distance of 500 mm.
  • the non-woven fabric 11 produced had a fiber diameter of 0.51 ⁇ m, a modulus of compressive elasticity of 69%, and a normal incidence sound absorption coefficient of 43%.
  • the modulus of compressive elasticity was comparable to that of Comparative Example despite the smaller fiber diameter.
  • the fiber bundles 12 in the non-woven fabric 11 were as thick as 0.55 mm, and had a void fraction of 96.8%, and a length of 10 mm or more.
  • the proportion of fiber bundles 12 in the non-woven fabric 11 was 16.2%.
  • a polypropylene resin was used as feedstock.
  • the polypropylene resin was heated to 240°C, and hot air of the same temperature was blown onto the polypropylene resin at a rate of 60 m/s to form ultrafine fibers 9, using the spinning nozzle 6 having resin discharge holes 110 of 0.1 mm diameter disposed at 0.25-mm intervals.
  • the non-woven fabric 11 was formed at a spinning distance of 1,400 mm.
  • the non-woven fabric 11 produced had a median size of 0.51 ⁇ m, a modulus of compressive elasticity of 76%, and a normal incidence sound absorption coefficient of 41%. The modulus of compressive elasticity was higher than in Example 1, despite that the fiber diameter was about the same.
  • the fiber bundles 12 in the non-woven fabric 11 were as thick as 4.43 mm, and had a void fraction of 97.1%, and a length of 10 mm or more. The proportion of fiber bundles 12 in the non-woven fabric 11 was 42.7%.
  • a polypropylene resin was used as feedstock.
  • the polypropylene resin was heated to 280°C, and hot air of the same temperature was blown onto the polypropylene resin at a rate of 80 m/s to form ultrafine fibers 9, using the spinning nozzle 6 having resin discharge holes 110 of 0.1 mm diameter disposed at 0.25-mm intervals.
  • the non-woven fabric 11 was formed at a spinning distance of 1, 000 mm.
  • the non-woven fabric 11 produced had a median size of 0.54 ⁇ m, a modulus of compressive elasticity of 73%, and a normal incidence sound absorption coefficient of 79%.
  • the volume ratio of fibers with a diameter of 1 ⁇ m or less was about three times higher than in Example 2, and the number of ultrafine fibers 9 was larger than in Example 2, even though the fiber diameter was about the same in Examples 2 and 3. Specifically, despite the larger numbers of ultrafine fibers 9 and the higher sound absorption coefficient than in Example 2, the same level of modulus of compressive elasticity was obtained, and the sound absorption coefficient and the modulus of compressive elasticity were both desirable.
  • the fiber bundles 12 in the non-woven fabric 11 were as thick as 3.13 mm, and had a void fraction of 96.7%, and a length of 10 mm or more. The proportion of fiber bundles 12 in the non-woven fabric 11 was 40.1%.
  • a polypropylene resin was used as feedstock.
  • the polypropylene resin was heated to 280°C, and hot air of the same temperature was blown onto the polypropylene resin at a rate of 100 m/s to form ultrafine fibers 9, using the spinning nozzle 6 having resin discharge holes 110 of 0.7 mm diameter disposed at 60-mm intervals.
  • the non-woven fabric 11 was formed at a spinning distance of 1,250 mm.
  • the non-woven fabric 11 produced had a fiber diameter of 0.74 ⁇ m, a modulus of compressive elasticity of 67%, and a normal incidence sound absorption coefficient of 81%.
  • the modulus of compressive elasticity was comparable to that of Comparative Example despite the smaller fiber diameter.
  • the sound absorption coefficient, and the modulus of compressive elasticity were both desirable.
  • the same effect was obtained even with the spinning nozzle 6 of a different structure from Examples 1 to 3.
  • the fiber bundles 12 in the non-woven fabric 11 were as thick as 3.17 mm, and had a void fraction of 97.0%, and a length of 10 mm or more.
  • the proportion of fiber bundles 12 in the non-woven fabric 11 was 89.7%.
  • a polypropylene resin was used as feedstock.
  • the polypropylene resin was heated to 280°C, and hot air of the same temperature was blown onto the polypropylene resin at a rate of 100 m/s to form ultrafine fibers 9, using the spinning nozzle 6 having resin discharge holes 110 of 0.7 mm diameter disposed at 10-mm intervals.
  • the non-woven fabric 11 was formed at a spinning distance of 2,000 mm.
  • the non-woven fabric 11 produced had a fiber diameter of 0.64 ⁇ m, a modulus of compressive elasticity of 77%, and a normal incidence sound absorption coefficient of 71%.
  • the modulus of compressive elasticity was higher than in Example 4 despite the smaller fiber diameter.
  • the normal incidence sound absorption coefficient was lower than in Example 4.
  • the fiber bundles 12 in the non-woven fabric 11 were as thick as 7.05 mm, and had a void fraction of 98.5%, and a length of 10 mm or more. The proportion of fiber bundles 12 in the non-woven fabric 11 was 95.4%.
  • the non-woven fabric 11 including the base portion 13 formed by entangling of some of the ultrafine fibers 9, and the fiber bundle 12 formed by entangling and bundling of other ultrafine fibers in the ultrafine fibers 9 has a lower void fraction in the fiber bundle 12 than in the base portion 13, and can have improved mechanical strength without losing the properties developed by using ultrafine fibers 9, even though the non-woven fabric 11 is configured from ultrafine fibers 9.
  • the present disclosure is not limited to the foregoing embodiment, and may be implemented in various different forms.
  • the disclosure has use as an acoustic absorbent having a layer formed of the non-woven fabric of the embodiment.
  • An acoustic absorbent configured from a layer of the non-woven fabric of the embodiment can have more desirable acoustic absorbent with a higher normal incidence sound absorption coefficient than that obtained in Comparative Example, as described above.
  • the non-woven fabric according to the embodiment of the present disclosure can have improved mechanical strength without losing the functions developed by using ultrafine fibers.
  • the non-woven fabric has potential use in a range of industrial applications, including, for example, acoustic absorbents, heat insulating materials, adsorbents, absorbers, filters, ....etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP17165953.5A 2016-05-11 2017-04-11 Vliesstoff, verfahren zur herstellung von vliesstoff und schallschluckmittel Active EP3243947B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016095392A JP6614450B2 (ja) 2016-05-11 2016-05-11 不織布及び吸音材

Publications (2)

Publication Number Publication Date
EP3243947A1 true EP3243947A1 (de) 2017-11-15
EP3243947B1 EP3243947B1 (de) 2019-02-06

Family

ID=58544801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17165953.5A Active EP3243947B1 (de) 2016-05-11 2017-04-11 Vliesstoff, verfahren zur herstellung von vliesstoff und schallschluckmittel

Country Status (4)

Country Link
US (1) US20170327983A1 (de)
EP (1) EP3243947B1 (de)
JP (1) JP6614450B2 (de)
CN (1) CN107366089B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3396039A4 (de) * 2015-12-21 2019-01-09 Panasonic Intellectual Property Management Co., Ltd. Faseranordnung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6964861B2 (ja) * 2017-05-22 2021-11-10 エム・テックス株式会社 ナノファイバー製造装置およびそれに用いられるヘッド
JP7089358B2 (ja) * 2017-11-28 2022-06-22 日東電工株式会社 多孔質繊維シート
JP7097781B2 (ja) 2018-08-23 2022-07-08 日東電工株式会社 積層シート
JP2021146733A (ja) * 2020-03-16 2021-09-27 パナソニックＩｐマネジメント株式会社 繊維メッシュシートとその製造方法、及び繊維メッシュシートを用いた細胞培養チップ
US11958308B1 (en) 2023-05-31 2024-04-16 G13 Innovation In Production Ltd Thermal paper, and methods and systems for forming the same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972759A (en) * 1972-06-29 1976-08-03 Exxon Research And Engineering Company Battery separators made from polymeric fibers
EP0123545A2 (de) * 1983-04-25 1984-10-31 Toray Industries, Inc. Nichtgewobene Folie, Verfahren zur Herstellung derselben, und diese enthaltende Kompositfolie
JPH0515717A (ja) * 1991-07-15 1993-01-26 Toyobo Co Ltd エレクトレツト繊維フイルター
EP0825287A1 (de) * 1995-02-20 1998-02-25 Toray Industries, Inc. Vliesstoff und daraus hergestelltes Filtermedium und Verfahren zur Herstellung
EP1751338A1 (de) * 2004-04-19 2007-02-14 The Procter and Gamble Company Fasern, vliesstoffe und erzeugnisse mit nanofasern aus polymeren mit einer hohen glasübergangstemperatur
US20130115837A1 (en) * 2011-11-09 2013-05-09 Dale S. Kitchen Nanofiber nonwovens and nanofiber nonwoven composites containing roped fiber bundles
JP2013139655A (ja) 2012-01-05 2013-07-18 Teijin Ltd 極細径繊維不織布およびその製造方法
JP2013147771A (ja) 2012-01-20 2013-08-01 Mitsui Chemicals Inc メルトブローン不織布、その用途、及びその製造方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548628A (en) * 1982-04-26 1985-10-22 Asahi Kasei Kogyo Kabushiki Kaisha Filter medium and process for preparing same
JP3043058B2 (ja) * 1990-11-28 2000-05-22 株式会社クラレ 柔軟な繊維質シート及びその製造に適したポリウレタン系多成分繊維
JP3164172B2 (ja) * 1992-04-17 2001-05-08 東洋紡績株式会社 不織布およびその製造方法
US5900206A (en) * 1997-11-24 1999-05-04 Owens Corning Fiberglas Technology, Inc. Method of making a fibrous pack
DE10127471A1 (de) * 2001-06-07 2002-12-12 Fleissner Gerold Verfahren zur Herstellung eines verfestigten Nonwoven aus zumindest teilweise mikrofeinen Endlosfilamenten und Nonwoven nach diesem Verfahren
DE20213228U1 (de) * 2002-08-23 2002-10-31 Carcoustics Tech Ct Gmbh & Co Mehrlagiges Schall- und Wärmeisolationsteil
DE102005013420A1 (de) * 2005-03-21 2006-09-28 Ami-Agrolinz Melamine International Gmbh Verfahren zur Herstellung von duroplastischen Feinstfaservliesen mit hoher Flamm-, Thermo- und Schallschutzwirkung
US7858163B2 (en) * 2006-07-31 2010-12-28 3M Innovative Properties Company Molded monocomponent monolayer respirator with bimodal monolayer monocomponent media
CN101392432B (zh) * 2008-11-10 2011-08-10 郭武胜 制作熔喷非织物羽绒双组份保暖絮片的方法
US8021996B2 (en) * 2008-12-23 2011-09-20 Kimberly-Clark Worldwide, Inc. Nonwoven web and filter media containing partially split multicomponent fibers
JP2011077410A (ja) * 2009-09-30 2011-04-14 Toshiba Corp 固体撮像装置
JP5905400B2 (ja) * 2011-01-28 2016-04-20 タピルス株式会社 極細繊維からなるメルトブロー不織布の製造方法及び極細繊維からなるメルトブロー不織布を製造するための装置
JP5866625B1 (ja) * 2014-12-25 2016-02-17 パナソニックＩｐマネジメント株式会社 吸音材

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972759A (en) * 1972-06-29 1976-08-03 Exxon Research And Engineering Company Battery separators made from polymeric fibers
EP0123545A2 (de) * 1983-04-25 1984-10-31 Toray Industries, Inc. Nichtgewobene Folie, Verfahren zur Herstellung derselben, und diese enthaltende Kompositfolie
JPH0515717A (ja) * 1991-07-15 1993-01-26 Toyobo Co Ltd エレクトレツト繊維フイルター
EP0825287A1 (de) * 1995-02-20 1998-02-25 Toray Industries, Inc. Vliesstoff und daraus hergestelltes Filtermedium und Verfahren zur Herstellung
EP1751338A1 (de) * 2004-04-19 2007-02-14 The Procter and Gamble Company Fasern, vliesstoffe und erzeugnisse mit nanofasern aus polymeren mit einer hohen glasübergangstemperatur
US20130115837A1 (en) * 2011-11-09 2013-05-09 Dale S. Kitchen Nanofiber nonwovens and nanofiber nonwoven composites containing roped fiber bundles
JP2013139655A (ja) 2012-01-05 2013-07-18 Teijin Ltd 極細径繊維不織布およびその製造方法
JP2013147771A (ja) 2012-01-20 2013-08-01 Mitsui Chemicals Inc メルトブローン不織布、その用途、及びその製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3396039A4 (de) * 2015-12-21 2019-01-09 Panasonic Intellectual Property Management Co., Ltd. Faseranordnung

Also Published As

Publication number Publication date
JP6614450B2 (ja) 2019-12-04
EP3243947B1 (de) 2019-02-06
JP2017203231A (ja) 2017-11-16
CN107366089B (zh) 2021-04-02
US20170327983A1 (en) 2017-11-16
CN107366089A (zh) 2017-11-21

Similar Documents

Publication Publication Date Title
EP3243947B1 (de) Vliesstoff, verfahren zur herstellung von vliesstoff und schallschluckmittel
JP2022046702A (ja) 積層体の製造方法および積層体
CN102482799B (zh) 用于形成纳米纤维和纳米纤维网的设备、系统和方法
JP5957162B1 (ja) 繊維シートの製造方法
KR102015880B1 (ko) 혼섬 부직포, 적층 시트, 필터, 및 혼섬 부직포의 제조 방법
KR101242449B1 (ko) 에어레이드 부직포 제조용 복합 섬유 및 고밀도 에어레이드 부직포의 제조 방법
EP3187634B1 (de) Dehnbarer vliesstoff mit ausgezeichneter dauerhaftigkeit
WO2015153477A1 (en) Synthetic fill materials having composite fiber structures
KR20160030238A (ko) 로프트성, 탄성 및 고강도 특성 중 적어도 하나를 가지는 스펀-레이드 웹
JP5613095B2 (ja) 熱膨張性不織布及びこれを用いた嵩高不織布の製造方法
JP2007231500A (ja) フィルター用不織布およびその製造方法
WO2017047185A1 (ja) 不織布及びこれを用いたエアフィルター
JP2007152216A (ja) フィルター用不織布
KR101282784B1 (ko) 수직기류를 이용한 단섬유 공급장치
JPH05263344A (ja) 伸縮性長繊維不織布及びその製造方法
JP6710038B2 (ja) ナノファイバー不織布及びそれを用いた吸音材
JP2006069033A (ja) 複合不織布及びエアフィルター
JP6433046B2 (ja) 長繊維不織布を用いた吸油材及びその製造方法
JP6158117B2 (ja) 不織布断熱材
JP2011190546A (ja) メルトブローン繊維集合体
KR20240026178A (ko) 섬유 구조체 및 그 용도
JP2019007112A (ja) 伸縮性不織布およびその製造方法
JP6997527B2 (ja) ポリフェニレンサルファイド不織布
JP2019077968A (ja) 繊維集合体、これを用いた吸油材及び繊維集合体の製造方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180219

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180507

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20181017

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1094971

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602017002043

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190206

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190506

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190606

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1094971

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190606

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190506

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190507

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602017002043

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190411

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

26N No opposition filed

Effective date: 20191107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190411

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170411

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210411

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210411

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230420

Year of fee payment: 7