WO2007131738A1 - Fils de fibre naturelle aptes à la découpe et à l'écoulement pour des masses de mise en forme de smc (sheet moulding compounds) et nappes de fibres à charge textile, procédé de fabrication et d'application - Google Patents

Fils de fibre naturelle aptes à la découpe et à l'écoulement pour des masses de mise en forme de smc (sheet moulding compounds) et nappes de fibres à charge textile, procédé de fabrication et d'application Download PDF

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Publication number
WO2007131738A1
WO2007131738A1 PCT/EP2007/004222 EP2007004222W WO2007131738A1 WO 2007131738 A1 WO2007131738 A1 WO 2007131738A1 EP 2007004222 W EP2007004222 W EP 2007004222W WO 2007131738 A1 WO2007131738 A1 WO 2007131738A1
Authority
WO
WIPO (PCT)
Prior art keywords
yarn
natural fiber
fibers
sections
fiber
Prior art date
Application number
PCT/EP2007/004222
Other languages
German (de)
English (en)
Inventor
Herbert Costard
Original Assignee
Herbert Costard
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 Herbert Costard filed Critical Herbert Costard
Publication of WO2007131738A1 publication Critical patent/WO2007131738A1/fr

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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
    • 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
    • D04H1/645—Impregnation followed by a solidification process
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • 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

Definitions

  • SMC Sheet Molding Compounds
  • Schnitzel nonwovens process for its production
  • the invention relates to the production of cutting and pourable natural fiber yarns in order to make them suitable for use in cutting systems (usually wide-cutting machines) in SMC plants or Schnitzel fleece plants.
  • SMC molding compounds are produced on semi-finished products on an SMC impregnation plant from semi-finished material.
  • continuous rovings are cut to a length of 20-50 mm and laid down on a support film coated with a resin / filler mixture. The top is then covered with a second carrier film prepared in the same way. After passing through a compaction group, the resulting SMC semifinished product is wound up. After a certain maturing period of 2 to 4 weeks, which serves primarily for thickening by introduced fillers, the SMC can be processed.
  • the described rovings are mainly characterized by a unidirectional orientation, which is of central importance for the utilization of the fiber strength in the composite.
  • Natural fibers ie in particular cellulose fibers such as cotton, all scleral fibers such as hemp, Flax, nettle and ramie are finite fibers from cells of the corresponding plant. Depending on the preliminary stage of the processing, these can be present as a single fiber or as a fiber bundle. However, all of these fibers have a peculiarity that they are processed in random, curled and not unidirectionally aligned, especially in general when they exceed a certain length. There is a ratio of fiber fineness and length with respect to the unidirectional orientation. Essential for the transmission of force in a composite material is not only the actual fiber strength, but also the fiber length.
  • the object of the invention is achieved by a cutting and pourable natural fiber yarn, which is characterized in that it is equipped with a binder.
  • the yarn count depends on the corresponding application in relation to the finished components.
  • the yarn count is between Nm 3 and Nm 80, preferably between Nm 10 and Nm 40.
  • the yarns are used either as 100% yarns of a fiber type, ie, for example, of linen fibers, or as blended yarns, for example, a blend of cotton and linen, or viscose and linen, among others.
  • a fiber type ie, for example, of linen fibers
  • blended yarns for example, a blend of cotton and linen, or viscose and linen, among others.
  • mixtures with synthetic fibers for example polyester, are also provided.
  • a blend of cotton and linen for example, ideally meets the demands of a composite material due to the impact strength of the cotton and the stiffness of the linen fiber.
  • the yarn is provided with a binder which makes it smoother and stiffer, and in particular, capable of cutting and pouring.
  • the yarn / method is characterized in particular by the fact that the yarn after the spinning process for stiffening and weighting to free-flowing with a size, a resin size, with starch or the like, with a water-solidifying agent or with polyvinyl alcohol or epichlorohydrin resin, in particular polyvinyl alcohol or epichlorohydrin resin, impregnated or coated or encased.
  • the amount of binder applied is in particular between 0.5 and 25%, preferably 10%.
  • the so-equipped, in particular coated yarns are cut after the dry and free-flowing and preferably unidirectional, so that they can be put on a tape or sieve without entanglement and can be oriented on the tape or sieve by appropriate measures in their orientation.
  • the yarns thus produced are similar to the rovings made of glass or synthetic fibers on the SMC or Schnitzelvliesanlagen processed and can give a drapible Schnitzelvlies or a flowable SMC semi-finished.
  • the possible cutting length of the yarns does not differ from the possible cutting lengths of the rovings made of glass or synthetic fibers, so that composites with high strength can be made from natural fibers.
  • the yarn was cut to a cut length of 50 mm on an SMC system from Schmidt & Heinzmann, Bruchsal.
  • a ring yarn Nm 40, 50% cotton / 50% linen was used.
  • the application of a yarn coating was carried out on a coating and thermofixing the Fa. Dietze and Schell, Coburg.
  • As the coating agent a 20% PVA solution in water at a running speed of 100 m / min was used. This was followed by drying at 160 ° C.
  • the yarn was cut to a cutting length of 50 mm on an SMC plant from Schmidt & Heinzmann, Bruchsal.
  • Fig. 1 shows an SMC plant It. G.W. Ehrenstein, Faserverbund Kunststoffe, Kunststoff 1992.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Fil de fibre naturelle ou d'un mélange de fibres naturelles/fibres synthétiques apte à la découpe et à l'écoulement pour la fabrication de nappes de fibres et de demi-produits de fibres pour la fabrication de matériaux composites renforcés de fibres.
PCT/EP2007/004222 2006-05-17 2007-05-11 Fils de fibre naturelle aptes à la découpe et à l'écoulement pour des masses de mise en forme de smc (sheet moulding compounds) et nappes de fibres à charge textile, procédé de fabrication et d'application WO2007131738A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006023060A DE102006023060A1 (de) 2006-05-17 2006-05-17 Schneid- und rieselfähige Naturfasergarne für SMC-Formmassen und Schnitzelvliese
DE102006023060.4 2006-05-17

Publications (1)

Publication Number Publication Date
WO2007131738A1 true WO2007131738A1 (fr) 2007-11-22

Family

ID=38430511

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/004222 WO2007131738A1 (fr) 2006-05-17 2007-05-11 Fils de fibre naturelle aptes à la découpe et à l'écoulement pour des masses de mise en forme de smc (sheet moulding compounds) et nappes de fibres à charge textile, procédé de fabrication et d'application

Country Status (2)

Country Link
DE (1) DE102006023060A1 (fr)
WO (1) WO2007131738A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2949125A1 (fr) * 2009-08-11 2011-02-18 David Ambs Renfort composite a base de fibres naturelles

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990011170A1 (fr) * 1989-03-20 1990-10-04 Weyerhaeuser Company Produit fibreux naturel revetu d'un materiau liant thermodurci
WO1993021369A1 (fr) * 1992-04-16 1993-10-28 Heraklith Baustoffe Aktiengesellschaft Procede de fabrication d'un panneau isolant
EP0776999A2 (fr) * 1995-11-29 1997-06-04 WINDI WINDERLICH GmbH Procédé pour le filage au mouille de fibres de sclérenchyme, notamment de lin
DE19645697A1 (de) * 1996-11-06 1998-05-07 Thueringisches Inst Textil Verfahren zur Herstellung von Halbzeugen für naturfaserverstärkte Verbundwerkstoffe mit gezielt anisotroper Anordnung der Verstärkungsfasern
EP0949058A2 (fr) * 1998-04-08 1999-10-13 Schock & Co. GmbH Objet moulé en matière plastique renforcé de fibres et procédé pour sa fabrication
DE10230235A1 (de) * 2002-07-04 2004-01-29 Herbert Costard Halbzeug Flächengebilde für Verbundwerkstoffe
DE10233177A1 (de) * 2002-07-22 2004-02-05 Herbert Costard Hydrolytisches Verfahren zur Freilegung von Sklerenchymfasern

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990011170A1 (fr) * 1989-03-20 1990-10-04 Weyerhaeuser Company Produit fibreux naturel revetu d'un materiau liant thermodurci
WO1993021369A1 (fr) * 1992-04-16 1993-10-28 Heraklith Baustoffe Aktiengesellschaft Procede de fabrication d'un panneau isolant
EP0776999A2 (fr) * 1995-11-29 1997-06-04 WINDI WINDERLICH GmbH Procédé pour le filage au mouille de fibres de sclérenchyme, notamment de lin
DE19645697A1 (de) * 1996-11-06 1998-05-07 Thueringisches Inst Textil Verfahren zur Herstellung von Halbzeugen für naturfaserverstärkte Verbundwerkstoffe mit gezielt anisotroper Anordnung der Verstärkungsfasern
EP0949058A2 (fr) * 1998-04-08 1999-10-13 Schock & Co. GmbH Objet moulé en matière plastique renforcé de fibres et procédé pour sa fabrication
DE10230235A1 (de) * 2002-07-04 2004-01-29 Herbert Costard Halbzeug Flächengebilde für Verbundwerkstoffe
DE10233177A1 (de) * 2002-07-22 2004-02-05 Herbert Costard Hydrolytisches Verfahren zur Freilegung von Sklerenchymfasern

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2949125A1 (fr) * 2009-08-11 2011-02-18 David Ambs Renfort composite a base de fibres naturelles

Also Published As

Publication number Publication date
DE102006023060A1 (de) 2007-11-22

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