EP0906460B1 - Fabrics formed from yarns of covered high modulus material - Google Patents

Fabrics formed from yarns of covered high modulus material Download PDF

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Publication number
EP0906460B1
EP0906460B1 EP97943351A EP97943351A EP0906460B1 EP 0906460 B1 EP0906460 B1 EP 0906460B1 EP 97943351 A EP97943351 A EP 97943351A EP 97943351 A EP97943351 A EP 97943351A EP 0906460 B1 EP0906460 B1 EP 0906460B1
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EP
European Patent Office
Prior art keywords
fabric
high modulus
yarns
bicomponent
poly
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
Application number
EP97943351A
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German (de)
English (en)
French (fr)
Other versions
EP0906460A4 (en
EP0906460A1 (en
Inventor
Jeffrey Scott Denton
Dana Burton Eagles
Joseph Gerald O'connor
Robert Bernard Davis
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Albany International Corp
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Albany International Corp
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Filing date
Publication date
Priority claimed from US08/710,488 external-priority patent/US5840637A/en
Application filed by Albany International Corp filed Critical Albany International Corp
Publication of EP0906460A1 publication Critical patent/EP0906460A1/en
Publication of EP0906460A4 publication Critical patent/EP0906460A4/en
Application granted granted Critical
Publication of EP0906460B1 publication Critical patent/EP0906460B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/447—Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics
    • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3146—Strand material is 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
    • Y10T442/3154—Sheath-core multicomponent strand 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/444—Strand 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • 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.]
    • Y10T442/629—Composite 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • 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.]
    • Y10T442/634—A nonwoven fabric having a layer comprising non-linear synthetic polymeric strand or fiber material and a separate and distinct layer comprising strand or fiber material which is 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • 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
    • Y10T442/638—Side-by-side multicomponent 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • 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
    • Y10T442/641—Sheath-core multicomponent 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven fabric
    • Y10T442/668—Separate nonwoven fabric layers comprise chemically different strand or fiber material

Definitions

  • the present direction is directed to fabrics comprising yarns of high modulus materials, such as polymer materials, covered within a second material.
  • the fabrics can be used in clothings for paper making machines and other industrial fabric applications.
  • Paper machine clothing is the term for industrial fabrics used on paper machines in the forming,. pressing and drying sections. They are generally fabricated with either polyester or polyamide multifilaments and/or monofilaments woven on conventional, large textile looms. These fabrics have generally been fabricated by conventional weaving techniques.
  • PMC paper machine clothing'
  • the surface topography of PMC fabrics contributes to the quality of the paper product. Efforts have been made to create a smoother contact surface with the paper sheet. However, surface smoothness of PMC woven fabrics is limited by the topography resulting from the weave pattern and the filament physical properties. In a woven fabric (or knitted fabric), smoothness is inherently limited by the knuckles formed at the cross-over points of intersecting yarns.
  • High modulus materials are potential materials for use in applications requiring high mechanical properties and light weight. On a property-weight basis, high modulus polymers have a distinct advantage over metals and ceramics.
  • High modulus polymers are highly anisotropic, and high modulus is achieved only in the direction of molecular chain orientation. In fact, properties normal to the molecular axis exhibit considerably lower values than the properties exhibited in the longitudinal direction. As a result,. low shear and compressive properties are exhibited in the direction normal to the molecular axis.
  • a papermaker's fabric that is constructed from polymeric fibers with 15 percent or more of the fabric'fibers larger than 100 denier and multipolymeric fibers.
  • the multipolymeric fibers contain two or more distinct polymeric regions within their cross sections.
  • the muitipolymeric fibers may be constructed in a sheath-core, side by side, or islands in the stream form.
  • the components of the multipolymeric fibers are each selected to provide a combination of properties not available from any single polymer fiber.
  • the present invention is directed towards fabrics according to claim 1 which are formed from yarns of covered high modulus filament materials.
  • the present invention is intended to provide a composite filamentary material which exhibits the advantages of high modulus materials while providing a means for compensating the diminished properties exhibited by such fibers in the direction normal to molecular chain orientation.
  • the present invention is a composite filament structure wherein a high modulus filament material is covered with bicomponent filaments.
  • the composite filament structure has a first interior layer of high modulus filament material and a second exterior layer of bicomponent fibers, the second exterior layer of bicomponent fibers being covered around the first interior layer of high modulus material along its entire length. The entire surface area of the high modulus material should be covered.
  • the bicomponent fibers of the present invention may be either a sheath-core arrangement or a side-by-side arrangement, with sheath-core being preferred. It is further preferred that the sheath component have a melting point lower than the core component.
  • Suitable bicomponent fibers include sheath-core combinations of co-polyester/poly (ethylene terephthalate), polyamide/poly (ethylene terephthalate) , polyamide/polyamide,polyethylene/poly (ethylene terephthalate), polypropylene/poly (ethylene terephthalate), polyethylene/polyamide, polypropylene/polyamide, thermoplastic polyurethane/polyamide and thermoplastic polyurethane/poly (ethylene terephthalate.
  • Modulus refers to the tensile modulus as defined by the slope of the initial linear portion of the load extension response (stress-strain curve) of a specimen deformed at room temperature.
  • High modulus material includes high modulus polymers that exhibit tensile modulus greater than about 25% of theory.
  • a high modulus polymer is one possessing a tensile modulus greater than about 25 GPA. Encyclopedia of Polymer Science 2d ed. vol 7, pp. 699-722. It should be noted that highly oriented polymer structures are anisotropic, and as modulus is increased by raising the degree of molecular chain orienta ion, modulus decreases commensurately in other directions.
  • Suitable high modulus polymers include, but are not limited to aramids such as poly (p-phenyleneterephthalamide), available from Dupont under the tradename Kevlar®, other aramids such as Kermel® (available from Rhone-Poulenc) Arenka®, available from Akzo, Nomex (available from DuPont), polyethylene naphthalate (PEN), poly (p-phenylene benzobisthiazole), polyesters, glass, aromatic polyamide resins Arenka®, an aramid available from Akzo, thermotropic copolyesters such as Vectra® (Celanese) and Xydar® (Dart), high modulus polyethylene fibers such as Spectra 900 (Allied).
  • aramids such as poly (p-phenyleneterephthalamide), available from Dupont under the tradename Kevlar®, other aramids such as Kermel® (available from Rhone-Poulenc) Arenka®, available from Akzo, No
  • the high modulus interior could be covered, such as braiding and wrapping.
  • a braid of bicomponent fibers around the high modulus interior provides a structure with good stability. Wrapping the high modulus fibers with the bicomponent fiber material is another suitable method. Fibers could be covered with either a single covering machine or a double covering machine. In either case, the core fibers are spirally covered at a selected pitch.
  • the melting point of the sheath component is lower than the melting point of the core component, and lower than the melting point of the high modulus interior. Improved structural integrity is imparted by heating the fabric, which has been formed from the yarns, which intersect each other in the fabric, to a temperature in excess of the melting point of the sheath but lower than the melting point of the core and high modulus interior, followed by subsequent cooling.
  • This process hereinafter referred to heat fusion, causes the sheath components of the bicomponent fibers to enter a softened state, and accordingly, the yarns fuse together at contact points when cooled to temperatures below the melting point of the sheath material. For the most part, such contact points are the points where the yarns intersect each other.
  • the present invention provides a means for producing single layered fabrics able to withstand the demanding conditions which paper machine clothings are subjected to.
  • fabrics must be constructed of at least two layers to insure that the fabrics have the necessary dimensional stability and strength in order to withstand the demanding running conditions.
  • the present invention could also be used as the top laminate structure of a multilayer structure, and it is believed that its use as such a layer would offer advantages over conventional materials due to reduced knuckle size on the surface of the fabric and reduced caliper of the fabric. Reduced knuckle size would create a smoother fabric surface, a feature desired by paper makers. It is also possible that a thinner fabric can be made using the high modulus composite yarns of the present invention since the excellent tensile properties possessed by high modulus materials means that less material could be used to attain the degree of strength possessed by conventional fabrics.
  • the present invention may also be used as the base layer of a multilayer structure. The improved dimensional stability of this layer makes it well suited for this usage.
  • a fabric according to the invention as a base layer would impart certain advantages to the overall fabric construction. Because the composite yarns of the present invention exhibit a relatively high degree of strength along the axis of the yarn, the use of this fabric layer as the base layer would provide the stability and strength required of the overall fabric structure. Therefore, less rigid materials could be used in other fabric layers, enabling the paper maker to, for example, select fibers of fine denier to construct other layers. Accordingly, fabrics could be made thinner in this way as well. A thinner fabric is desirable since drainage properties would be improved.
  • the yarns may be the sole constituents of at least one layer of a clothing.
  • at least one layer is constructed of the yarns of the present invention, and preferably constitute the surface layer in contact with the paper sheet.
  • the bicomponent fibers are to be arranged in an orderly non-random manner.
  • fibers of a clothing run in a first direction; the first direction fibers do not intersect with other fibers running in the first direction; and that fibers of the clothing run in a second direction; the second direction fibers do not intersect with other fibers running in the second direction; that fibers running in the first direction intersect with fibers running in the second direction, and vice versa.
  • fibers arranged in the machine direction will not intersect with each other and such fibers will intersect only with fibers running in the cross machine direction.
  • the clothings may be constructed of fibers running in the machine or cross machine direction, but such clothings could be constructed of fibers which run in directions that are at angles to the machine and cross machine direction of a paper making machine.
  • Figure 1 is a fabric comprised of yarns of the present invention.
  • the fabric is a plain weave construction, with yarns in the warp and shute direction being comprised of yarns of the present invention. It can be observed from Fig. 1 that the yarns are interconnected with other yarns at the points at which the yarns intersect. This is attributable to heat fusion of the yarns, wherein the sheaths of the bicomponent materials fuse to each other after heating the fabric to a temperature above the melting point of the sheath material, yet lower than the melting point of the core material.
  • Both the warp and shute yarns of the fabric shown in Figure 1 are of the same structure.
  • the high modulus interior of the yarns are about 134 filaments of Kevlar® 49.
  • Eight bicomponent yarns have been braided around the Kevlar® interior.
  • Each yarn is constituted of sixteen (16) bicomponent filaments.
  • the filaments are Bellcouple® from Kanebo, 250 denier, 16 filament count having a low melt copolyester sheath material and a poly(ethylene terephthalate) core, with the melting point of the copolyester sheath being lower than the melting point of the PET core.
  • the eight bicomponent yarns are braided around the Kevlar® interior. Braiding forms a relatively stable structure, and the covered high modulus yarns can be used to form fabrics as shown in Figure 1. Such fabrics are formed according to methods readily appreciated to one skilled in the art. After the fabric has been formed, it is placed under tension, heated to a temperature greater than the melting point of the sheath, yet lower than the melting point of the core, and then cooled to a temperature lower than the melting point of the sheath.
  • the present invention provides a means for producing single layered fabrics able to withstand the demanding conditions which paper machine clothings are subjected to.
  • fabrics must be constructed of at least two layers to insure that the fabrics have the necessary dimensional stability and strength in order to withstand the demanding running conditions.
  • the paper machine clothings of the present invention are characterized by high modulus, low stretch materials, the stiffness and dimensional stability of the fabric is provided by the layer of high modulus materials and accordingly, one layer fabrics are possible.
  • the high degree of strength provided by such materials it is possible to use less material in constructing a fabric while imparting equal or even greater strength when compared to multi layer materials which contain considerably more material.
  • Achieving a single layer fabric design would be a substantial breakthrough in PMC design.
  • the present invention could also be used as the top laminate structure of a multilayer structure, and it is believed that its use as such a layer would offer advantages over conventional materials due to increased planarity on the surface. Increased planarity is the result of reduced knuckle size at points where yarns intersect. Upon heat fusion of the fabric, the low-melt component of the bicomponent fiber collapses and flows, reducing the knuckle size of the crossover points.
  • the present invention may also be used as the base layer of a multilayer structure.
  • the improved dimensional stability of this layer makes it well-suited for this usage.
  • other materials such as those of fine diameters, can be used in other layers, since stability and strength is imparted by the layer constructed of the high modulus material.
  • the use of fine diameter materials in paper-sheet contacting layers would improve surface smoothness, a desirable feature of paper machine clothings.
  • Figure 2 shows a fabric wherein the yarns described in relation to Figure 1 above are used in the warp direction.
  • the shute direction yarns are comprised of 9 ply material. That is, they are a ply of nine yarns of bicomponent material as described in Figure 1.
  • the plied yarns are twisted loosely together.
  • the yarns have a distinctly flattened appearance. That is, after heat fusion, the yarns take on a ribbon like appearance.
  • Figure 3 shows a cross section of a composite yarn according to the present invention.
  • the Kevlar® interior is visible as a distinct region.
  • the bicomponent exterior is not discrete.
  • a fabric according to the present invention should remain cleaner than a clothing comprised of conventional monofilaments.
  • Heat fusion of a fabric comprised of bicomponent fibers are characterized in part by fused, intersecting yarns.
  • conventional monofilaments have interstices at points where yarns intersect. Fusion at the intersections of bicomponent fibers diminishes, and possibly eliminates, such interstices. Interstices are pinch points at which debris can be entrapped and collect over time. Accordingly, the heat fused intersecting yarns produced with bicomponent fibers provides a structure that should remain relatively cleaner than a clothing comprised of conventional monofilaments.
  • paper machine clothings of the present invention are believed to possess over conventional clothings comprised of monofilaments is that such clothings exhibit relatively planar, knuckle free surfaces at cross over points. It can be readily appreciated that when fibers are woven (or knitted), knuckles are formed which diminish surface smoothness. As noted, knuckle size is reduced upon heat fusion of the bicomponent fibers, which improves the surface smoothness. Surface smoothness is a factor which affects paper quality. Accordingly, clothings of improved smoothness are of interest to the manufacturer of paper and related products. A network of bonds between intersecting fibers will be formed upon heat fusion of a clothing comprised of bicomponent fibers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Multicomponent Fibers (AREA)
  • Paper (AREA)
EP97943351A 1996-09-18 1997-09-12 Fabrics formed from yarns of covered high modulus material Expired - Lifetime EP0906460B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/710,488 US5840637A (en) 1996-09-17 1996-09-18 Yarns of covered high modulus material and fabrics formed therefrom
US710488 1996-09-18
PCT/US1997/016505 WO1998012371A1 (en) 1996-09-18 1997-09-12 Yarns of covered high modulus material and fabrics formed therefrom

Publications (3)

Publication Number Publication Date
EP0906460A1 EP0906460A1 (en) 1999-04-07
EP0906460A4 EP0906460A4 (en) 2000-01-19
EP0906460B1 true EP0906460B1 (en) 2005-01-12

Family

ID=24854242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97943351A Expired - Lifetime EP0906460B1 (en) 1996-09-18 1997-09-12 Fabrics formed from yarns of covered high modulus material

Country Status (13)

Country Link
EP (1) EP0906460B1 (ja)
JP (1) JP3477210B2 (ja)
KR (1) KR100305120B1 (ja)
CN (1) CN1096510C (ja)
AT (1) ATE286997T1 (ja)
AU (1) AU716177B2 (ja)
BR (1) BR9706771A (ja)
CA (1) CA2237964C (ja)
DE (1) DE69732234T2 (ja)
ES (1) ES2231892T3 (ja)
MX (1) MX9803908A (ja)
NZ (1) NZ330367A (ja)
WO (1) WO1998012371A1 (ja)

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JP5030380B2 (ja) * 2004-12-27 2012-09-19 ユニチカ株式会社 ロッドおよびその製造方法
US20070071960A1 (en) * 2005-09-27 2007-03-29 Eleazer Howell B Moldable fabric with variable constituents
US7294384B2 (en) 2005-09-27 2007-11-13 Milliken & Company Moldable construction incorporating bonding interface
US7378359B2 (en) 2005-09-27 2008-05-27 Eleazer Howell B Moldable fibrous construction incorporating non-woven layers
US7300691B2 (en) 2005-09-27 2007-11-27 Milliken & Company Moldable construction incorporating non-olefin bonding interface
JP4958491B2 (ja) * 2006-07-06 2012-06-20 イチカワ株式会社 抄紙用フェルト
US20080124513A1 (en) 2006-09-11 2008-05-29 Eleazer Howell B Moldable fabric with unidirectional tape yarns
JP5814045B2 (ja) * 2011-08-18 2015-11-17 ユニチカ株式会社 防汚性布帛およびその製造方法
EP2994306B1 (en) 2013-05-06 2018-01-10 Milliken & Company Fiber reinforced structural element
CN104530705B (zh) * 2014-12-09 2018-04-03 四川中升博能生物科技股份有限公司 一种用于电热网绝缘层的绝缘材料
CN112009054A (zh) * 2019-05-28 2020-12-01 霍尼韦尔特性材料和技术（中国）有限公司 一种复合片材及其制备方法与应用
WO2022162717A1 (ja) * 2021-01-26 2022-08-04 豊 備酒 縫製糸及び縫製糸の加工方法
CN115956739A (zh) * 2023-01-28 2023-04-14 安踏（中国）有限公司 一种鞋底复合加工方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156537A (ja) * 1987-10-02 1989-06-20 Stamicarbon Bv 低摩擦係数を有するポリマーフィラメントまたはヤーンと高摩擦係数を有するフィラメントまたはヤーンとの組合わせおよびその使用
JPH01246434A (ja) * 1988-03-22 1989-10-02 Nippon Pillar Packing Co Ltd 複合線状体及びその製造方法
US4927698A (en) * 1989-03-15 1990-05-22 Springs Industries, Inc. Pucker and shrink resistant flame retardant fabric formed of corespun yarns
DE69530971T2 (de) * 1994-11-23 2004-05-13 Bba Nonwovens Simpsonville, Inc. Ausdehnbare verbundvliesstoffe
US5527597A (en) * 1995-03-01 1996-06-18 Southern Mills, Inc. Stretchable flame resistant fabric
US5549967A (en) * 1995-05-04 1996-08-27 Huyck Licensco, Inc. Papermakers' press fabric with increased contact area
US5617903A (en) * 1996-03-04 1997-04-08 Bowen, Jr.; David Papermaker's fabric containing multipolymeric filaments

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DE69732234D1 (de) 2005-02-17
CA2237964C (en) 2001-12-04
ES2231892T3 (es) 2005-05-16
EP0906460A4 (en) 2000-01-19
DE69732234T2 (de) 2005-06-23
AU716177B2 (en) 2000-02-17
JP2000501796A (ja) 2000-02-15
CN1096510C (zh) 2002-12-18
KR19990067624A (ko) 1999-08-25
JP3477210B2 (ja) 2003-12-10
MX9803908A (es) 1998-09-30
NZ330367A (en) 1999-08-30
CN1207144A (zh) 1999-02-03
KR100305120B1 (ko) 2001-11-30
CA2237964A1 (en) 1998-03-26
AU4484297A (en) 1998-04-14
EP0906460A1 (en) 1999-04-07
ATE286997T1 (de) 2005-01-15
WO1998012371A1 (en) 1998-03-26
BR9706771A (pt) 1999-08-24

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