EP1508634B1 - Verfahren zur Herstellung eines Vliesstoffes - Google Patents
Verfahren zur Herstellung eines Vliesstoffes Download PDFInfo
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- EP1508634B1 EP1508634B1 EP04016916A EP04016916A EP1508634B1 EP 1508634 B1 EP1508634 B1 EP 1508634B1 EP 04016916 A EP04016916 A EP 04016916A EP 04016916 A EP04016916 A EP 04016916A EP 1508634 B1 EP1508634 B1 EP 1508634B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nonwoven fabric
- types
- fibre
- fiber
- different
- 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.)
- Expired - Lifetime
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 72
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 19
- 238000009987 spinning Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract 2
- 239000002356 single layer Substances 0.000 abstract 1
- 239000012209 synthetic fiber Substances 0.000 abstract 1
- 229920002994 synthetic fiber Polymers 0.000 abstract 1
- -1 polyethylene Polymers 0.000 description 10
- 239000004743 Polypropylene Substances 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
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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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
-
- 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
- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
-
- 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
-
- 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
- D04H1/50—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 treatment to produce shrinking, swelling, crimping or curling of fibres
-
- 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
- D04H1/542—Adhesive fibres
- D04H1/544—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
- D04H1/54—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
- D04H1/542—Adhesive fibres
- D04H1/549—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
- D04H1/54—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
- D04H1/542—Adhesive fibres
- D04H1/55—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
- D04H3/005—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
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—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 yarns or filaments produced by welding
-
- 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
- D04H3/14—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 yarns or filaments produced by welding
- D04H3/153—Mixed yarns or filaments
Definitions
- the invention relates to a method for producing a nonwoven fabric wherein a nonwoven fabric layer is formed from a fiber mixture of at least two different fiber types.
- the fibers are preferably filaments of thermoplastic material.
- WO 02/31250 A describes a method for producing spunbonded nonwovens, wherein at least a first and a second filament is used and wherein at least one filament consists of several components. Furthermore, in WO 02/31250 A Solidification measures for the spunbond called. EP 0 181 300 A also discloses a process for producing spunbond webs using different filaments.
- WO 03/040452 A relates to a process in which spunbonded nonwovens are made from staple fibers. In this case, a mixture of elastomeric staple fibers and crimped Bikomponentenstapelfasem is used.
- US 3,917,448 A also deals with a process for the production of spunbond webs, wherein different nonwoven layers are joined together by the further introduction of filaments.
- US 5,853,635 A and US 5,965,468 A In addition, methods are known in which spun nonwovens are produced from multi-component fabrics.
- US 5,028,375 A also relates to a spunbonding process wherein the spunbonded web produced by this process consists of only a single type of fiber.
- the invention is based on the technical problem to provide a method of the type mentioned, with the volume or the thickness of a nonwoven fabric can be increased from Mehrkomponentenfilêtn in a simple and inexpensive manner.
- the invention teaches a method for producing a nonwoven fabric, wherein a nonwoven layer is formed from a fiber mixture of monocomponent filaments, wherein this fiber mixture consists of at least two different types of fibers of monocomponent filaments and wherein the two types of fibers have a different shrinkage behavior during a heat treatment, wherein the different types of fibers forming the nonwoven layer are produced with a single spinning tool, wherein the single nonwoven layer is solidified, and wherein the solidified single nonwoven layer is subsequently subjected to a heat treatment with the proviso that the shrinkage of at least one of the fiber types is activated.
- a single nonwoven layer is meant according to an embodiment of the invention, a layer aggregate, which is formed from a plurality of identical nonwoven fabric layers.
- a plurality of identical nonwoven fabric layers with identical fiber mixtures and thus identical shrinkage properties are formed one above the other, so that a homogeneous layer aggregate is formed as it were.
- these forming the bearing unit identical nonwoven fabric layers are produced with a spinning tool and all on the same tray.
- such a layer aggregate also forms a single nonwoven layer, which is subsequently solidified, preferably solidified in a calender.
- the fibers of the fiber mixture are continuous fibers which expediently consist of thermoplastic material.
- the only nonwoven layer before solidification is in the form of a homogeneous fiber mixture.
- the at least two fiber types are homogeneously distributed in the nonwoven fabric layer.
- Homogeneous in this context also means that the fibers are distributed substantially homogeneously in the nonwoven layer. In any case, it is within the scope of the invention that no different layers or layers are formed with the different fiber types.
- the two fiber types of the fiber mixture have a different shrinkage behavior during a heat treatment.
- the fiber mixture used in the context of the invention So it is a shrinkable fiber mixture whose various types of fibers shrink at different temperatures.
- the different types of fibers forming the nonwoven fabric layer are produced with a single spinning tool.
- a nonwoven fabric layer according to the invention is thus prepared according to this embodiment, advantageously in a spinning shaft as Mischfaserablage.
- a spinning tool is used in the context of this embodiment, which normally serves for the production of bicomponent fibers or multi-component fibers.
- the different components or the different fiber types emerge from respectively different spinning openings or capillaries of the spinning tool. An approximately equal spinning speed of the different components or the different fiber types can be ensured by varying the respective hole densities and throughputs per capillary.
- the two fiber types consist of different plastics.
- at least one of the two types of fibers consists of at least one plastic from the group "polyolefin, polyester, polyamide".
- the two types of fibers can also consist of copolymers of these plastics.
- the first type of fiber is a polyolefin and the second type of fiber is a polyester.
- the polyolefin is expediently polyethylene or polypropylene.
- the polyester is preferably polyethylene terephthalate (PET) or polybutylene terephthalate (PBT).
- one type of fiber of the fiber mixture consists of polypropylene and the second type of fiber of the fiber mixture consists of polyethylene terephthalate (PET).
- PET polyethylene terephthalate
- Another embodiment of the invention is characterized in that a Fiber type of the fiber mixture consists of polypropylene and the second type of fiber consists of polybutylene terephthalate (PBT).
- PBT polybutylene terephthalate
- the first type of fiber of the fiber mixture consists of polyethylene and the second type of fiber of the fiber mixture consists of polypropylene.
- the fibers used for the fiber mixture are according to the invention monofilaments. In principle, however, it is also within the scope of the invention for a type of fiber of the fiber mixture to consist of multicomponent fibers or multi-component filaments and in particular of bicomponent fibers or bicomponent filaments. However, the use of monofilaments for the two or for all fiber types of the fiber mixture is preferred.
- the two fiber types of the fiber mixture have a different shrinkage behavior during a heat treatment. Due to appropriate selection of the raw material for the fibers and / or by adjusting the spinning conditions, the different fiber components have different shrinkage potentials in a certain temperature range.
- the single nonwoven fabric layer is solidified with a calender.
- a calender roll or a pair of calender rolls is used for solidification.
- a calender roll or calender roll pair is used which has engraving points with engraving point intervals of more than 1.5 mm, preferably more than 2.5 mm. According to a preferred embodiment, these are mean engraving point distances.
- the heat treatment of the consolidated nonwoven fabric layer is carried out with the aid of a heated or heated fluid.
- the heat treatment is carried out with the aid of hot air.
- the heat treatment can be performed in a hot air oven.
- a drum dryer can be used.
- the different shrinkage of both types of fibers is utilized.
- the fiber component with the higher shrinkage pulls together the engraving points or connection points, while the fiber component with the smaller shrinkage has to dodge into the thickness.
- the invention is based on the finding that voluminous nonwovens can be produced with the method according to the invention in a simple and inexpensive manner, which are distinguished by excellent properties. This gives relatively thick and voluminous nonwovens with excellent textile feel. It should be emphasized that the process can be carried out in a relatively inexpensive manner and thus also the nonwovens produced are characterized by cost-effectiveness.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
- Treatment Of Fiber Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
- Die Erfindung betrifft ein Verfahren zur Herstellung eines Vliesstoffes wobei eine Vliesstofflage aus einem Fasergemisch aus zumindest zwei unterschiedlichen Faserarten gebildet wird. - Bei den Fasern handelt es sich vorzugsweise um Filamente aus thermoplastischem Kunststoff.
- Aus der Praxis ist eine Vielzahl von Verfahren zur Herstellung von Vliesstoffen bekannt.
beschreibt ein Verfahren zur Herstellung von Spinnvliesen, wobei zumindest ein erstes und ein zweites Filament eingesetzt wird und wobei zumindest ein Filament aus mehreren Komponenten besteht. Des Weiteren sind inWO 02/31250 A Verfestigungsmaßnahmen für das Spinnvlies genannt.WO 02/31250 A EP 0 181 300 A offenbart ebenfalls ein Verfahren zur Herstellung von Spinnvliesen, bei dem unterschiedliche Filamente eingesetzt werden. betrifft ein Verfahren, bei dem Spinnvliese aus Stapelfasern hergestellt werden. Dabei wird eine Mischung aus elastomeren Stapelfasern und gekräuselten Bikomponentenstapelfasem eingesetzt.WO 03/040452 A US 3,917,448 A befasst sich ebenfalls mit einem Verfahren zur Herstellung von Spinnvliesen, wobei unterschiedliche Vlieslagen durch das weitere Einbringen von Filamenten miteinander verbunden werden. AusUS 5,853,635 A undUS 5,965,468 A sind darüber hinaus Verfahren bekannt, bei dem Spinnvliese aus Mehrkomponentenflamenten hergestellt werden.US 5,028,375 A betrifft ebenfalls ein Verfahren zur Spinnvliesherstellung, wobei das nach diesem Verfahren hergestellte Spinnvlies aus lediglich einer einzigen Faserart besteht. - Die aus dem Stand der Technik bekannten Verfahren haben den Nachteil, dass das Erzeugen von Vliesstoffen mit hoher Festigkeit und hoher Steifigkeit in der Regel nur möglich ist, wenn eine deutliche Reduktion der Dicke in Kauf genommen wird. Mit anderen Worten sind diese Vliesstoffe nur verhältnismäßig wenig voluminös und weisen deshalb oftmals einen ungenügenden textilen Griff auf. Spezielle Verfahrensschritte zur Vergrößerung der Dicke bzw. des Volumens, wie beispielsweise das Vernadeln des Vliesstoffes sind vor allem bei den im Hygienebereich typischen leichten Vliesprodukten unwirtschaftlich.
- Der Erfindung liegt das technische Problem zugrunde, ein Verfahren der eingangs genannten Art anzugeben, mit dem auf einfache und wenig aufwendige Weise das Volumen bzw. die Dicke eines Vliesstoffes aus Mehrkomponentenfilamenten erhöht werden kann.
- Zur Lösung dieses technischen Problems lehrt die Erfindung ein Verfahren zur Herstellung eines Vliesstoffes,
wobei eine Vliesstofflage aus einem Fasergemisch aus Monokomponentenfilamenten gebildet wird,
wobei dieses Fasergemisch aus zumindest zwei unterschiedlichen Faserarten von Monokomponentenfilamenten besteht und wobei die beiden Faserarten ein unterschiedliches Schrumpfverhalten bei einer Wärmebehandlung aufweisen,
wobei die die Vliesstofflage bildenden unterschiedlichen Faserarten mit einem einzigen Spinnwerkzeug erzeugt werden,
wobei die einzige Vliesstofflage verfestigt wird und wobei die verfestigte einzige Vliesstofflage anschließend einer Wärmebehandlung mit der Maßgabe unterzogen wird, dass die Schrumpfung zumindest einer der Faserarten aktiviert wird. - Mit dem Begriff "eine einzige Vliesstofflage" ist nach einer Ausführungsform der Erfindung auch ein Lagenaggregat gemeint, das aus einer Mehrzahl von identischen Vliesstofflagen gebildet wird. Es werden also mehrere identische Vliesstofflagen mit identischen Fasergemischen und somit identischen Schrumpfeigenschaften übereinander gebildet, so dass ein gleichsam homogenes Lagenaggregat entsteht. Dabei liegt es im Rahmen der Erfindung, dass diese das Lageaggregat bildenden identischen Vliesstofflagen mit einem Spinnwerkzeug und alle auf der selben Ablage erzeugt werden. Gemäß dieser Ausführungsform bildet auch ein solches Lagenaggregat die eine einzige Vliesstofflage, die anschließend verfestigt wird, vorzugsweise in einem Kalander verfestigt wird.
- Es liegt im Rahmen der Erfindung, dass es sich bei den Fasern des Fasergemisches um Endlosfasern handelt, die zweckmäßigerweise aus thermoplastischem Kunststoff bestehen. Nach sehr bevorzugter Ausführungsform der Erfindung liegt die einzige Vliesstofflage vor der Verfestigung in Form eines homogenen Fasergemisches vor. Mit anderen Worten sind die zumindest zwei Faserarten homogen in der Vliesstofflage verteilt. Homogen meint in diesem Zusammenhang auch, dass die Fasern im Wesentlichen homogen in der Vliesstofflage verteilt sind. Es liegt in diesem Zusammenhang auf jeden Fall im Rahmen der Erfindung, dass mit den unterschiedlichen Faserarten keine verschiedenen Schichten bzw. Lagen gebildet werden.
- Erfindungsgemäß weisen die beiden Faserarten des Fasergemisches ein unterschiedliches Schrumpfverhalten bei einer Wärmebehandlung auf. Bei dem im Rahmen der Erfindung eingesetzten Fasergemisch
handelt es sich also um ein schrumpffähiges Fasergemisch, dessen verschiedene Faserarten bei unterschiedlichen Temperaturen schrumpfen. - Erfindungsgemäß werden die die Vliesstofflage bildenden unterschiedlichen Faserarten mit einem einzigen Spinnwerkzeug erzeugt. Eine erfindungsgemäße Vliesstofflage wird also nach dieser Ausführungsform zweckmäßigerweise in einem Spinnschacht als Mischfaserablage hergestellt. Nach besonders bevorzugter Ausführungsform der Erfindung wird im Rahmen dieser Ausführungsform ein Spinnwerkzeug eingesetzt, das normalerweise zur Herstellung von Bikomponentenfasern bzw. Mehrkomponentenfasern dient. Dabei treten die verschiedenen Komponenten bzw. die unterschiedlichen Faserarten aus jeweils unterschiedlichen Spinnöffnungen bzw. Kapillaren des Spinnwerkzeuges aus. Eine in etwa gleiche Spinngeschwindigkeit der unterschiedlichen Komponenten bzw. der unterschiedlichen Faserarten kann durch Variation der jeweiligen Lochdichten und der Durchsätze pro Kapillare sichergestellt werden.
- Es liegt weiter im Rahmen der Erfindung, dass die beiden Faserarten aus unterschiedlichen Kunststoffen bestehen. Nach sehr bevorzugter Ausführungsform der Erfindung besteht zumindest eine der beiden Faserarten aus zumindest einem Kunststoff aus der Gruppe "Polyolefin, Polyester, Polyamid". Die beiden Faserarten können auch aus Copolymeren dieser Kunststoffe bestehen. Gemäß einer Ausführungsform besteht die erste Faserart aus einem Polyolefin und die zweite Faserart aus einem Polyester. Bei dem Polyolefin handelt es sich zweckmäßigerweise um Polyethylen oder um Polypropylen. Bei dem Polyester handelt es sich vorzugsweise um Polyethylenterephthalat (PET) oder um Polybutylenterephthalat (PBT). Nach einer Ausführungsform der Erfindung besteht eine Faserart des Fasergemisches aus Polypropylen und besteht die zweite Faserart des Fasergemisches aus Polyethylenterephthalat (PET). Eine andere Ausführungsform der Erfindung ist dadurch gekennzeichnet, dass eine Faserart des Fasergemisches aus Polypropylen besteht und das die zweite Faserart aus Polybutylenterephthalat (PBT) besteht. Gemäß einer anderen Ausführungsform der Erfindung besteht die erste Faserart des Fasergemisches aus Polyethylen und die zweite Faserart des Fasergemisches aus Polypropylen.
- Bei den für das Fasergemisch eingesetzten Fasern handelt es sich erfindungsgemäß um Monofilamente. Grundsätzlich liegt es aber auch im Rahmen der Erfindung, dass eine Faserart des Fasergemisches aus Mehrkomponentenfasern bzw. Mehrkomponentenfilamenten und insbesondere aus Bikomponentenfasern bzw. Bikomponentenfilamenten besteht. Der Einsatz von Monofilamenten für die beiden bzw. für alle Faserarten des Fasergemisches ist aber bevorzugt.
- Erfindungsgemäß weisen die beiden Faserarten des Fasergemisches ein unterschiedliches Schrumpfverhalten bei einer Wärmebehandlung auf. Aufgrund entsprechender Auswahl des Rohstoffes für die Fasern und/oder durch Einstellung der Spinnbedingungen weisen die verschiedenen Faserkomponenten unterschiedliche Schrumpfpotentiale in einem bestimmten Temperaturbereich auf.
- Nach sehr bevorzugter Ausführungsform, der im Rahmen der Erfindung ganz besondere Bedeutung zukommt wird die einzige Vliesstofflage mit einem Kalander verfestigt. Es liegt dabei im Rahmen der Erfindung, dass eine Kalanderwalze bzw. ein Kalanderwalzenpaar zur Verfestigung verwendet wird. Vorzugsweise wird mit einer Kalanderwalze bzw. Kalanderwalzenpaar gearbeitet, das Gravurpunkte mit Gravurpunktabständen über 1,5 mm, vorzugsweise über 2,5 mm aufweist. Nach bevorzugter Ausführungsform handelt es sich dabei um mittlere Gravurpunktabstände.
- Nach bevorzugter Ausführungsform der Erfindung wird die Wärmebehandlung der verfestigten Vliesstofflage mit Hilfe eines erwärmten bzw. erhitzten Fluids durchgeführt. Zweckmäßigerweise wird die Wärmebehandlung mit Hilfe von heißer Luft vollzogen. Insoweit kann die Wärmebehandlung in einem Heißluftofen durchgeführt werden. Zum Einsatz kann beispielsweise ein Trommeltrockner kommen.
- Bei der Wärmebehandlung wird die unterschiedliche Schrumpfung beider Faserarten ausgenutzt. Dabei zieht die Faserkomponente mit dem höheren Schrumpf die Gravurpunkte bzw. Verbindungspunkte zusammen, während die Faserkomponente mit dem kleineren Schrumpf gleichsam in die Dicke ausweichen muss.
- Der Erfindung liegt die Erkenntnis zugrunde, dass mit dem erfindungsgemäßen Verfahren auf einfache und wenig aufwendige Weise voluminöse Vliese hergestellt werden können, die sich durch hervorragende Eigenschaften auszeichnen. Man erhält verhältnismäßig dicke und voluminöse Vliesstoffe mit ausgezeichnetem textilen Griff. Hervorzuheben ist, dass das Verfahren auf verhältnismäßig kostengünstige Weise durchgeführt werden kann und sich somit auch die hergestellten Vliesstoffe durch Kostengünstigkeit auszeichnen.
Claims (7)
- Verfahren zur Herstellung eines Vliesstoffes, wobei eine Vliesstofflage aus einem Fasergemisch aus Monokomponentenfilamenten gebildet wird,
wobei dieses Fasergemisch aus zumindest zwei unterschiedlichen Faserarten von Monokomponentenfilamenten besteht und wobei die beiden Faserarten ein unterschiedliches Schrumpfverhalten bei einer Wärmebehandlung aufweisen,
wobei die die Vliesstofflage bildenden unterschiedlichen Faserarten mit einem einzigen Spinnwerkzeug erzeugt werden,
wobei die einzige Vliesstofflage verfestigt wird und wobei die verfestigte einzige Vliesstofflage anschließend einer Wärmebehandlung mit der Maßgabe unterzogen wird, dass die Schrumpfung zumindest einer der Faserarten aktiviert wird. - Verfahren nach Anspruch 1, wobei die beiden Faserarten aus unterschiedlichen Kunststoffen bestehen.
- Verfahren nach einem der Ansprüche 1 oder 2, wobei zumindest eine der beiden Faserarten aus zumindest einem Kunststoff aus der Gruppe "Polyolefin, Polyester, Polyamid" besteht.
- Verfahren nach einem der Ansprüche 1 bis 3, wobei die einzige Vliesstofflage mit einem Kalander verfestigt wird.
- Verfahren nach Anspruch 4, wobei mit einer Kalanderwalze bzw. mit einem Kalanderwalzenpaar gearbeitet wird, das mittlere Gravurpunktabstände über 1,5 mm, vorzugsweise über 2,5 mm aufweist.
- Verfahren nach einem der Ansprüche 1 bis 5, wobei die Wärmebehandlung mit zumindest einem erhitzten Fluid durchgeführt wird.
- Verfahren nach Anspruch 6, wobei es sich bei dem erhitzten Fluid um Heißluft handelt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10338196 | 2003-08-20 | ||
| DE10338196A DE10338196A1 (de) | 2003-08-20 | 2003-08-20 | Verfahren zur Herstellung eines Vliesstoffes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1508634A1 EP1508634A1 (de) | 2005-02-23 |
| EP1508634B1 true EP1508634B1 (de) | 2007-10-31 |
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| US (1) | US7854813B2 (de) |
| EP (1) | EP1508634B1 (de) |
| JP (1) | JP4146403B2 (de) |
| KR (1) | KR100815697B1 (de) |
| CN (1) | CN100417759C (de) |
| AT (1) | ATE377106T1 (de) |
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| CA (1) | CA2478132C (de) |
| DE (2) | DE10338196A1 (de) |
| ES (1) | ES2291782T3 (de) |
| MX (1) | MXPA04008026A (de) |
| MY (1) | MY141145A (de) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2679049C (en) | 2004-05-13 | 2015-03-24 | Samsung Electronics Co., Ltd. | Digital broadcasting transmission/reception devices capable of improving a receiving performance and signal processing method thereof |
| CN101258029B (zh) * | 2005-10-03 | 2011-07-06 | 维顺特拉华有限公司 | 无纺织物、包括无纺织物的物品以及制造无纺织物的方法 |
| KR100944220B1 (ko) * | 2009-07-03 | 2010-02-24 | (주)협성섬유 | 건축 내장재용 폴리에스테르 부직포 패널 및 그 제조 방법 |
| US9408761B2 (en) | 2011-03-25 | 2016-08-09 | The Procter & Gamble Company | Article with nonwoven web component formed with loft-enhancing calendar bond shapes and patterns |
| ITAR20110017A1 (it) * | 2011-09-21 | 2013-03-22 | Massimo Papucci | Semilavorati per cappelli, borse o oggettistica varia con tessuti o non tessuti ottenuti tramite fissaggio termico ed il suo procedimento |
| USD714560S1 (en) | 2012-09-17 | 2014-10-07 | The Procter & Gamble Company | Sheet material for an absorbent article |
| DE102013008402B4 (de) * | 2013-05-16 | 2025-07-17 | Irema-Filter Gmbh | Faservlies und Verfahren zur Herstellung desselben |
| EP3192910B1 (de) * | 2016-01-15 | 2019-07-24 | Reifenhäuser GmbH & Co. KG Maschinenfabrik | Verfahren zur herstellung eines laminates und laminat |
| CZ2018647A3 (cs) * | 2018-11-23 | 2020-06-03 | Reifenhäuser GmbH & Co. KG Maschinenfabrik | Objemná netkaná textilie se zvýšenou stlačitelností a zlepšenou schopností regenerace |
| CN112359487A (zh) * | 2020-10-30 | 2021-02-12 | 百事基材料(青岛)股份有限公司 | 一种含橄榄的丙纶纺粘无纺布及其制备方法 |
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| US2398729A (en) * | 1943-06-29 | 1946-04-16 | American Viscose Corp | Filament extrusion device |
| NL189176B (nl) * | 1956-07-13 | 1900-01-01 | Hisamitsu Pharmaceutical Co | Pleister op basis van een synthetische rubber. |
| US3067482A (en) * | 1958-07-03 | 1962-12-11 | Du Pont | Sheet material and process of making same |
| US3262153A (en) * | 1964-07-13 | 1966-07-26 | Du Pont | Apparatus for producing composite filaments |
| US3272898A (en) * | 1965-06-11 | 1966-09-13 | Du Pont | Process for producing a nonwoven web |
| US3889325A (en) * | 1968-08-17 | 1975-06-17 | Vepa Ag | Process for shrinking non-woven webs |
| US3917448A (en) * | 1969-07-14 | 1975-11-04 | Rondo Machine Corp | Random fiber webs and method of making same |
| US3981650A (en) * | 1975-01-16 | 1976-09-21 | Beloit Corporation | Melt blowing intermixed filaments of two different polymers |
| US4237180A (en) * | 1976-01-08 | 1980-12-02 | Jaskowski Michael C | Insulation material and process for making the same |
| SE456217B (sv) * | 1984-11-08 | 1988-09-19 | Moelnlycke Ab | For engangsbruk avsett, vetskeabsorberande alster |
| US4734311A (en) * | 1985-01-16 | 1988-03-29 | Kimberly-Clark Corporation | Elasticized non-woven fabric and method of making the same |
| DE3701531A1 (de) * | 1987-01-21 | 1988-08-04 | Reifenhaeuser Masch | Verfahren und anlage zur herstellung von einem spinnvlies |
| DE3728002A1 (de) * | 1987-08-22 | 1989-03-02 | Freudenberg Carl Fa | Verfahren und vorrichtung zur herstellung von spinnvliesen |
| JP2545260B2 (ja) * | 1988-02-02 | 1996-10-16 | チッソ株式会社 | 嵩高補強不織布 |
| US5635290A (en) * | 1994-07-18 | 1997-06-03 | Kimberly-Clark Corporation | Knit like nonwoven fabric composite |
| US5762734A (en) * | 1996-08-30 | 1998-06-09 | Kimberly-Clark Worldwide, Inc. | Process of making fibers |
| US5853635A (en) * | 1997-06-18 | 1998-12-29 | Kimberly-Clark Worldwide, Inc. | Method of making heteroconstituent and layered nonwoven materials |
| US5965468A (en) * | 1997-10-31 | 1999-10-12 | Kimberly-Clark Worldwide, Inc. | Direct formed, mixed fiber size nonwoven fabrics |
| US6103181A (en) * | 1999-02-17 | 2000-08-15 | Filtrona International Limited | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom |
| US6613704B1 (en) * | 1999-10-13 | 2003-09-02 | Kimberly-Clark Worldwide, Inc. | Continuous filament composite nonwoven webs |
| DE10105784A1 (de) * | 2001-02-07 | 2002-08-08 | Fleissner Gerold | Wasservernadeltes Kompositvlies aus Stapel- und Endlosfasern und Verfahren zur Herstellung |
| US7504348B1 (en) * | 2001-08-17 | 2009-03-17 | Hills, Inc. | Production of nonwoven fibrous webs including fibers with varying degrees of shrinkage |
| US6887423B2 (en) * | 2001-09-26 | 2005-05-03 | E. I. Du Pont De Nemours And Company | Process for making a stretchable nonwoven web |
| JP3934916B2 (ja) * | 2001-11-06 | 2007-06-20 | オペロンテックス株式会社 | 伸縮性不織布およびその製造方法 |
| US7201816B2 (en) * | 2001-12-21 | 2007-04-10 | Invista North America S.A.R.L. | High bulk composite sheets and method for preparing |
| EP1396567B2 (de) * | 2002-08-09 | 2011-04-20 | Reifenhäuser GmbH & Co. KG Maschinenfabrik | Verfahren zur Herstellung einer Spinnvliesbahn aus Bikomponenten-Filamenten |
-
2003
- 2003-08-20 DE DE10338196A patent/DE10338196A1/de not_active Withdrawn
-
2004
- 2004-07-17 EP EP04016916A patent/EP1508634B1/de not_active Expired - Lifetime
- 2004-07-17 ES ES04016916T patent/ES2291782T3/es not_active Expired - Lifetime
- 2004-07-17 DE DE502004005348T patent/DE502004005348D1/de not_active Expired - Lifetime
- 2004-07-17 AT AT04016916T patent/ATE377106T1/de not_active IP Right Cessation
- 2004-07-29 US US10/902,691 patent/US7854813B2/en active Active
- 2004-07-30 MY MYPI20043078A patent/MY141145A/en unknown
- 2004-08-06 JP JP2004230352A patent/JP4146403B2/ja not_active Expired - Fee Related
- 2004-08-16 KR KR1020040064168A patent/KR100815697B1/ko not_active Expired - Fee Related
- 2004-08-17 CA CA002478132A patent/CA2478132C/en not_active Expired - Fee Related
- 2004-08-18 MX MXPA04008026A patent/MXPA04008026A/es active IP Right Grant
- 2004-08-19 BR BRPI0403315-9A patent/BRPI0403315B1/pt not_active IP Right Cessation
- 2004-08-20 CN CNB2004100641666A patent/CN100417759C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004005348D1 (de) | 2007-12-13 |
| KR100815697B1 (ko) | 2008-03-20 |
| BRPI0403315A (pt) | 2005-05-31 |
| CN1584168A (zh) | 2005-02-23 |
| BRPI0403315B1 (pt) | 2014-12-23 |
| MY141145A (en) | 2010-03-15 |
| JP2005068632A (ja) | 2005-03-17 |
| US20050040565A1 (en) | 2005-02-24 |
| MXPA04008026A (es) | 2005-06-08 |
| EP1508634A1 (de) | 2005-02-23 |
| US7854813B2 (en) | 2010-12-21 |
| CN100417759C (zh) | 2008-09-10 |
| CA2478132A1 (en) | 2005-02-20 |
| DE10338196A1 (de) | 2005-05-12 |
| CA2478132C (en) | 2008-10-21 |
| ES2291782T3 (es) | 2008-03-01 |
| JP4146403B2 (ja) | 2008-09-10 |
| KR20050020631A (ko) | 2005-03-04 |
| ATE377106T1 (de) | 2007-11-15 |
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