EP1937886B1 - Elastischer, weicher und punkförmig gebundener vliesstoff mit füllstoffpartikeln, verfahren zu dessen herstellung und dessen verwendung - Google Patents

Elastischer, weicher und punkförmig gebundener vliesstoff mit füllstoffpartikeln, verfahren zu dessen herstellung und dessen verwendung Download PDF

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Publication number
EP1937886B1
EP1937886B1 EP06724625A EP06724625A EP1937886B1 EP 1937886 B1 EP1937886 B1 EP 1937886B1 EP 06724625 A EP06724625 A EP 06724625A EP 06724625 A EP06724625 A EP 06724625A EP 1937886 B1 EP1937886 B1 EP 1937886B1
Authority
EP
European Patent Office
Prior art keywords
nonwoven fabric
fibres
filaments
binder
fabric according
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.)
Not-in-force
Application number
EP06724625A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1937886A1 (de
Inventor
Peter Grynaeus
Hans Rettig
Oliver Staudenmayer
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Priority to PL06724625T priority Critical patent/PL1937886T3/pl
Publication of EP1937886A1 publication Critical patent/EP1937886A1/de
Application granted granted Critical
Publication of EP1937886B1 publication Critical patent/EP1937886B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—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
    • 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
    • D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • 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
    • D04H1/4391—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 characterised by the shape of the 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
    • D04H1/44—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
    • D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • D04H1/62—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently at spaced points or locations
    • 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
    • D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/66—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions at spaced points or locations
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2400/00—Functions or special features of garments
    • A41D2400/10—Heat retention or warming
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2915—Rod, strand, filament or fiber including textile, cloth or fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
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    • Y10T428/2924—Composite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2418—Coating or impregnation increases electrical conductivity or anti-static quality
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
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    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/601—Nonwoven fabric has an elastic quality
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/601—Nonwoven fabric has an elastic quality
    • Y10T442/602—Nonwoven fabric comprises an elastic strand or fiber material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
    • Y10T442/629—Composite strand or fiber material
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    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
    • Y10T442/632—A single nonwoven layer comprising non-linear synthetic polymeric strand or fiber material and strand or fiber material not specified as non-linear
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
    • Y10T442/632—A single nonwoven layer comprising non-linear synthetic polymeric strand or fiber material and strand or fiber material not specified as non-linear
    • Y10T442/633—Synthetic polymeric strand or fiber material is of staple length
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    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/637—Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/697—Containing at least two chemically different strand or fiber materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/699—Including particulate material other than strand or fiber material

Definitions

  • the present invention relates to a nonwoven fabric, which is particularly suitable as a liner material, a process for its preparation and its use for the production of deposits.
  • EP-A-178.372 discloses a drapeable microporous multi-layer nonwoven fabric for medical applications.
  • the middle layer consists of microfibers and is covered on both sides with nonwovens.
  • the individual layers are connected by a pattern-shaped binder paste, for example a paraffin emulsion.
  • Nonwovens which contain patterned and preferably foamed microspheres and which can be used as reinforcing materials for plastics.
  • the US-A-5,366,801 or the EP-A-611.330 describe coating a fabric with a binder and microcapsules dispersed therein containing a latent heat storage material.
  • thermoregulatory properties imparting material is distributed throughout the interior of the nonwoven fabric.
  • the entire nonwoven fabric is impregnated with the material. This is done by impregnating the formed nonwoven fabric with the binder.
  • Nonwovens, ie mechanically stabilized / bonded materials, are used as starting materials.
  • the coated material consists of a substrate provided on a part of its surface with binder points or with applications of binders containing temperature-regulating materials.
  • the binders may be applied on the surface or penetrate into the interior of the substrate and penetrate this partially or completely. In any case, part of the surface is not impregnated with binder.
  • Various coated substrates are described, for example, fabrics, nonwovens, films, foams and papers.
  • US 4,748,044 and WO 03/056086 disclose an elastic nonwoven fabric having crimped fibers and / or crimped filaments and which is solidified at selected locations with a binder and is not solidified at further selected locations.
  • nonwovens are produced by subsequently forming a nonwoven fabric after the formation of a fibrous web of a mechanically unstable surface ("web formation") (cf., for example, US Pat Nonwovens, edited by W. Albrecht, H. Fuchs and W. Kittelmann, Wiley-VCH (2000), Part II, Nonwoven Fabrics Production Methods, Chap. 6, nonwoven bonding ).
  • Typical methods of web bonding are chemical processes, such as application of a binder, or physical processes (mechanical and / or thermal processes), such as needling, swirling, treatment with hot air or calendering. These processes are directly followed by the web forming process to convert the mechanically very unstable web into a handleable form.
  • nonwoven fabrics are understood to mean processed layers, nonwovens or battings of directionally arranged or randomly bonded fibers, solidified by friction and / or cohesion and / or adhesion (as defined in ISO 9092 or EN 29 092).
  • DE-A-29 14 617 describes a method for uniform and continuous printing of pastes on the front and back of textile fabrics.
  • a carding produced by carding is passed through a calender and thereby pre-consolidated.
  • a binder dispersion is applied on both sides in the form of a pattern on this textile fabric by means of rollers and then dried and the binder is crosslinked.
  • nonwovens with thermo-regulating properties have been produced by aftertreatment of nonwovens, ie of bonded, mechanically stabilized textile surfaces, with thermo-regulating materials.
  • the elasticity and softness of these nonwovens can - in some cases leave something to be desired - due to the upstream solidification step.
  • the object of the present invention is to provide a nonwoven fabric provided with filling material which, in addition to high elasticity, also has a high degree of softness. This makes it possible to produce textiles with improved fit and comfort.
  • Another object of the present invention was to provide an improved manufacturing method for fillers Nonwovens, in which the upstream step of the nonwoven bonding can be omitted and thus allows the production of nonwoven fabrics with reduced effort.
  • the present invention relates to a nonwoven fabric comprising crimped and optionally uncurled fibers and / or filaments which is solidified at selected locations with a binder containing particles of filler material and which is not solidified at further selected locations.
  • a sheet is produced which is not solidified in selected surface areas, which has thus experienced no web formation in these areas.
  • the presence of non-solidified areas improves the permeability, elasticity and feel of the nonwoven fabric.
  • heat-curable fibers or filaments are used in the manufacture of the batt.
  • the batt additionally contains non-crimped and non-crimpable or non-crimpable fibers or filaments under the processing conditions.
  • the nonwoven fabric according to the invention thus has crimped fibers and / or filaments and preferably also non-crimped fibers and / or filaments.
  • fibers are threads of finite length (staple fibers), ie threads with lengths up to the decimeter range.
  • Filaments in the context of this description are threads of virtually infinite length, ie threads with lengths above the decimeter range.
  • bicomponent fibers or filaments can be used to circumvent the problems of the products currently known in the art.
  • Bicomponent fibers or filaments have long been used in nonwoven fabric production. They can be used as core-sheath fibers or filaments with a lower melting sheath component as a binder fiber in the thermal consolidation of nonwoven fabrics - surface or punctiform - (cf., for example, US Pat. Nonwovens, edited by W. Albrecht, H. Fuchs and W. Kittelmann, Wiley-VCH (2000), Chap. 1.2, Manmade fibers - bicomponent fibers, p. 63 ).
  • the bicomponent fibers or filaments used are not used because of the adhesive / bonding properties of lower-melting components.
  • bicomponent fibers or filaments of polymer components having similar melting points can be used; these are so constructed, for example in side-by-side arrangement or in asymmetric core-shell arrangement, that their heat treatment causes different shrinkage along the fiber or filament axis.
  • the proportion of these crimpable fibers or filaments used in nonwoven fabric production causes an in situ contraction of the batt on exposure to temperature before the printing unit.
  • the curling fibers or filaments result in an improvement of the inner cohesion of the batt, thereby substantially facilitating the printability of the nonwoven fabric.
  • the nonwoven fabric volume and elasticity are to be chosen so that the treatment temperature remains below the melting or softening temperature of the lower melting or softening polymer of the multicomponent fiber, so that the heat treatment causes the crimp but does not cause adhesion.
  • the imprinted binder dots By triggering the crimping during the production of the nonwoven fabric according to the invention, the imprinted binder dots also gain in volume and softness, since the crimping fibers or filaments do not form any compact dots in the fiber matrix. Foaming the binder points is not necessary, but can take place.
  • Nonwovens containing two-dimensionally or three-dimensionally crimped fibers and / or filaments are preferred for achieving a particularly soft and elastic fabric.
  • the fibrous webs used according to the invention can consist of any desired fiber types of the most varied titer ranges, for example the titre of 0.5 to 10 dtex, preferably of 0.8 to 6.7 dtex, in particular of 1.3 to 3.3 dtex.
  • the fiber mixture should contain at least 5% by weight, preferably at least 20% by weight, of curled fibers or filaments. These may be heterofil fibers / bicomponent fibers or special homofil fibers (or the corresponding filaments).
  • the other fibers may be the usual in nonwoven fabric staple fibers or filaments.
  • the fibrous webs used according to the invention may have been produced using different web-forming techniques. Primary are carded, dry laid bobbin addressed. Direct fiber laying techniques according to the spunbonded fabric process or the melt-blown process are also possible.
  • Fibers made of staple fibers are particularly preferably used.
  • the fibers of the fibrous webs used may be isotropic or in a preferred direction, i. anisotropic, have been filed.
  • the batt may consist of equal or different titers of the same fiber.
  • the fibers constituting the batt may be composed of a wide variety of fibers, for example of homofil fibers, but also of 100% bicomponent fibers or a blend of bicomponent fibers and homofil fibers. It is also possible to use mixtures of synthetic fibers with natural fibers.
  • polyester homofil fibers e.g. Homopolyester fiber 1.7dtex / 38mm or 3,3dtex / 51mm blended with polyester bicomponent fibers, such as polyester-side-by-side bicomponent fibers. It is also possible to use polyamide fibers, for example of PA 66, 3d / 1.5 ", in the mixture A proportion of at least 5% of heterofil fibers, preferably bicofibres, is necessary, preferably at least 20%.
  • the fibrous webs used according to the invention can shrink up to 50%, depending on the orientation of the carded fiberboard, under the production conditions of the nonwoven fabric.
  • the nonwoven fabric is stabilized in the successive steps, preferably low in shrinkage, for example in the machine direction -3.0% and in the transverse direction -1.5%.
  • the fibrous webs used have basis weights of 15 to 210 g / m 2 .
  • carded batt with basis weights of 35 to 140 g / m 2 is used.
  • fiber materials are polyolefins, preferably polypropylene or polypropylene-ethylene copolymers, polyesters, polyamides or polyacrylonitrile and natural fibers, in particular cellulose fibers, cotton fibers, wool or mixtures thereof.
  • the binder containing the finely divided filler material may be of any nature, provided that it is capable of strengthening the fiber pile in selected surface areas.
  • thermoplastic polymers examples include polyolefin powder, in particular polyethylene or polypropylene powder, preferably co-polyester powder with a melting range> 150 ° C.
  • binders are in the US-A-5,366,801 , of the WO-A-02 / 12.607 , of the WO-A-02 / 59.414 and the WO-A-02 / 95.314 to find.
  • any finely divided materials can be used, by the addition of which the nonwoven fabric should be given a desired property.
  • filling materials are particles with ab- or adsorbing properties, ion exchangers, mineral fillers, reinforcing materials, electrically and / or thermally conductive materials / particles and in particular latent heat storage materials.
  • Particularly preferred are expanding microcapsules, particles of activated carbon, metal particles, particles of superabsorbent materials or short fibers.
  • latent heat storage materials the substances known per se can be used. Examples of this can be found in the documents mentioned above.
  • microencapsulated hydrocarbons in particular microencapsulated paraffins, as latent heat storage materials.
  • Examples of latent heat storage materials are listed in the following table.
  • connection Number of carbon atoms Melting point (° C) n-decane 10 -32 n-undecane 11 -26 n-dodecane 12 -11 n-Tridecane 13 -5.5 n-tetradecane 14 5.9 n-pentadecane 15 10.0 n-hexadecane 16 18.2 n-Heptadecane 17 22.0 n-octadecane 18 28.2 n-nonadecane 19 32.1 n-eicosane 20 36.8 n-heneicosane 21 40.5 n-docosane 22 44.4 n-tricosane 23 47.6 n-Tetracosane 24 50.9 n-pentacosane 25 53.7 n-hexacosane 265 56.4 h-heptacosane 27 59.0 n-Oct
  • the weight proportion of fiber material to binder and filler material in the nonwovens according to the invention is typically 90:10 to 10:90, preferably 50:50 to 30:70.
  • Binder and filler are applied in predetermined areas on loose batt by means of a printing technique, preferably by means of stencil printing. The largest part of the applied material should penetrate into the batt and penetrate this as possible. Some of the binder will also remain on the surface. Due to the punctiform application of the mixture of binder / filler material, however, areas of the batt remain in the finished product, in which there is actually no binder / filler.
  • the coverage of the surface with binder / filler material can span a wide range, typically from more than 20% up to 95% of the area. Preferably, more than 35% and up to 80% of the area of the batt is covered with binder / filler.
  • the order of the binder / filling material on the batt can be made according to different predetermined patterns. These patterns can be formed from line-shaped, hexagonal, circular or punctiform surface areas. Preference is given to dot patterns, such as regular or irregular dot patterns.
  • the production of the batt can be done as described above with a variety of methods.
  • the order of the binder / filler on the surface of the batt can also be done by any method. Preferred are screen printing methods, in particular the use of round screen printing stencils.
  • the treated batt is heated by heat rollers, so that the crimp of the batt is triggered.
  • step a) takes place by carding and depositing fibers on a carrier tape.
  • step b) is carried out as a passage of the batt between heated rolls with little or no pressure such that the treatment does not affect the thickness of the batt, the temperature of the rolls being below the melting temperature of the lowest melting polymer component of the fiber-forming material is selected.
  • step c) is carried out as a punctiform application of binder comprising particles of filler material, preferably of latent heat storage material, through a stencil on selected points of the surface of the batt.
  • the nonwoven fabric according to the invention can be used in a wide variety of fields, for example as a lining material or as an intermediate insert. Examples of uses are in clothing, bedding, gloves or shoes. In particular, the nonwoven fabric is used as interlining material.
  • a batt was made from a blend of 40% polyester side-by-side bicomponent fibers 3.0 dtex / 60 mm, 30% polyester homofil 3,3 dtex / 60 mm and 30% polyester homofil fibers 1.7 dtex / 38 mm. This had a basis weight of 50 g / m 2 .
  • the carded fiber web was passed between two heat rollers at 125 ° C without pressure.
  • a 40% mixture of a soft acrylate binder and mPCM latent heat storage material in the ratio 1: 2 in the form of a dot pattern was applied to the batt with a rotary screen printing stencil. The order was 90g / m 2 .
  • the printed area was 82.5%. After application, the printed batt was dried by a multi-belt dryer at 150 ° C and the binder crosslinked. The product is hereinafter called "40% biko, punctiform".
  • CTV full area
  • HZK means the maximum tensile force
  • HZD means the elongation at break.
  • the modulus values were measured at different strain values. The measurements were carried out in accordance with EN 29073-3.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Gloves (AREA)
  • Details Of Garments (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
EP06724625A 2005-06-28 2006-04-28 Elastischer, weicher und punkförmig gebundener vliesstoff mit füllstoffpartikeln, verfahren zu dessen herstellung und dessen verwendung Not-in-force EP1937886B1 (de)

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PL06724625T PL1937886T3 (pl) 2005-06-28 2006-04-28 Elastyczna, miękka i punktowo spajana włóknina z cząstkami wypełniacza, sposób jej wytwarzania i jej zastosowanie

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DE200510030484 DE102005030484B4 (de) 2005-06-28 2005-06-28 Elastischer Vliesstoff, Verfahren zu dessen Herstellung und dessen Verwendung
PCT/EP2006/003954 WO2007000206A1 (de) 2005-06-28 2006-04-28 Elastischer, weicher und punkförmig gebundener vliesstoff mit füllstoffpartikeln, verfahren zu dessen herstellung und dessen verwendung

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EP1937886B1 true EP1937886B1 (de) 2012-10-10

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DE (1) DE102005030484B4 (ko)
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US7201816B2 (en) * 2001-12-21 2007-04-10 Invista North America S.A.R.L. High bulk composite sheets and method for preparing
MXPA06000048A (es) 2003-06-30 2006-03-21 Procter & Gamble Particulados en tramas de nanofibras.

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CN101213333A (zh) 2008-07-02
DE102005030484B4 (de) 2007-11-15
ES2394517T3 (es) 2013-02-01
TW200706722A (en) 2007-02-16
WO2007000206A1 (de) 2007-01-04
US20090100565A1 (en) 2009-04-23
JP4779014B2 (ja) 2011-09-21
CN101213333B (zh) 2012-05-23
KR101052376B1 (ko) 2011-07-28
TWI322205B (en) 2010-03-21
DE102005030484A1 (de) 2007-01-04
KR101172600B1 (ko) 2012-08-08
KR20080022214A (ko) 2008-03-10
US8114794B2 (en) 2012-02-14
EP1937886A1 (de) 2008-07-02
JP2008546927A (ja) 2008-12-25
KR20100101700A (ko) 2010-09-17
PL1937886T3 (pl) 2013-02-28

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