EP4001480A1 - Structure de fil - Google Patents

Structure de fil Download PDF

Info

Publication number
EP4001480A1
EP4001480A1 EP21215088.2A EP21215088A EP4001480A1 EP 4001480 A1 EP4001480 A1 EP 4001480A1 EP 21215088 A EP21215088 A EP 21215088A EP 4001480 A1 EP4001480 A1 EP 4001480A1
Authority
EP
European Patent Office
Prior art keywords
thread
bundles
thread structure
thermoplastic matrix
threads
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.)
Pending
Application number
EP21215088.2A
Other languages
German (de)
English (en)
Inventor
Dirk Lange
Florian Neumann
Christoph Baumgart
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.)
Delcotex Delius Techtex & Co KG GmbH
Original Assignee
Delcotex Delius Techtex & Co KG GmbH
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 Delcotex Delius Techtex & Co KG GmbH filed Critical Delcotex Delius Techtex & Co KG GmbH
Publication of EP4001480A1 publication Critical patent/EP4001480A1/fr
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D9/00—Open-work fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/002—With diagonal warps or wefts
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/587—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads adhesive; fusible
    • 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
    • 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
    • D10B2505/00—Industrial
    • D10B2505/02—Reinforcing materials; Prepregs

Definitions

  • the present invention relates to a thread structure according to claim 1. Prepregs are well known.
  • the DE 69003875T 2 discloses a prepreg consisting of warp yarns and weft yarns, with the weft yarns running obliquely to the direction of the warp yarns. This structure is created for a specific carrier and is not changed anymore.
  • U.S.P.S. 5,53 6,554 discloses a belt of reinforced construction.
  • the individual reinforcement elements have different laying directions.
  • the US2005/0085147A1 discloses a prepreg woven from bundles of fibers with gaps between the bundles filled by auxiliary yarns to prevent openings in the final product.
  • the object of the present invention is to produce such prepregs with an increased utility value in a simple manner, while ensuring that the composite structure stabilizes the end product uniformly over the entire flat design of the end product.
  • the invention solves this problem with the features of the main claim.
  • the advantage of the invention is that such a thread structure can be produced in the simplest way, practically as a raw fabric, in open form, which already has a dimensionally stable structure a priori, because the thermoplastic matrix in the individual thread bundles not only stabilizes the thread bundles, but also the entire thread structure.
  • thermoplastic matrix is present in a volume which, in a subsequent pressing process under the known influencing factors of pressure, temperature and time, can flow into the gaps provided between the individual bundles of threads during production and in this way in this subsequent pressing process for a uniform Laying of the individual threads in the end product ensures.
  • thermoplastic matrix present in the respective bundle of threads that this thermoplastic matrix together with the Pressure from each bundle of threads flowing outwards forms a composite body evenly interspersed with individual threads in every direction, which is also interspersed with the thermoplastic matrix over the entire longitudinal and transverse dimension due to the excess thermoplastic matrix provided by the manufacturer.
  • the open lattice structure applies in all directions that are transverse to the respective laying directions of the direction-parallel thread bundles.
  • the thread structure according to the present invention can be produced as a semi-finished product, sandwich or lightweight board.
  • thermoplastic matrix In any case, the penetration of the thermoplastic matrix through the entire bundle of threads is essential. This means that practically no air pockets should be allowed in the thermoplastic matrix, at least not in the technically feasible range, so that the flow of the matrix in the downstream process can also lead to a full-volume matrix portion in the end product.
  • an additional thermoplastic material can also be processed easily, so that thanks to the invention, anchoring this additional thermoplastic material on both sides as a result of penetration through the plastic matrix present in the original prepreg leads to an improvement in the material properties.
  • the invention offers the additional advantage that, in the second processing step, a lower pressure is sufficient to bring the thermoplastics together in a capillary bond.
  • thermoplastic material in this context, the injection technique for injecting thermoplastic material into the originally present thread bundles also attracts attention.
  • thermoplastics used today have well-known kinematic state variables that can be set in such a way that each individual bundle of threads can be completely saturated so that later end products no longer have any air pockets.
  • the invention thus shows that, hitherto unknown, it can also have constant grid values in the structure of the end product, so that reliable predictions can be made with regard to the material properties.
  • the invention basically has holes defined by longitudinal and transverse dimensions in all embodiments, which are located between the individual thread bundles, at least before the thread bundles are pressed in a further processing step under the influences of temperature, pressure and time, such a thread structure can also have its Grid values are defined.
  • Grid values are those parameters that define the size of the gaps between the thread bundles, for example the X or Y values in a Cartesian coordinate system.
  • each thread bundle there are at least as many layers of individual threads and as much thermoplastic matrix that the lateral spaces between the thread bundles present in the original thread structure are filled by the individual threads flowing into the adjacent lateral spaces that were originally left free.
  • the manufacture of the thread structure as a roller conveyor offers the lowest costs per unit of length in terms of production technology and, in particular, the possibility of preparing the roller conveyor in the form of blanks for further processing.
  • the figures show a thread structure 1 with thread bundles 2,3,4; 2',3',4'; 2",3",4".
  • the invention also applies, for example, to unidirectionally laid bundles of threads in which only transversely there are significant distances within the meaning of the invention to the direction of the laid thread bundles.
  • bundles of threads laid unidirectionally could be fixed to one another by occasional transverse auxiliary threads.
  • the thread structure is completely and evenly impregnated with a thermoplastic matrix in a form-fitting manner and that the thread bundles can no longer move relative to one another after the thread structure has been correspondingly pre-consolidated.
  • Pre-consolidation in this sense means that dimensional stability of the lattice structure with the openings located therein must be achieved.
  • FIG.3 shows the thread bundles 2,3,4; 2',3',4';2",3",4" completely penetrated by the thermoplastic matrix 6.
  • Each bundle of threads consists of a large number of individual threads 5, which are shown and embedded in the full-volume thermoplastic matrix.
  • thermoplastic matrix present in each thread bundle at the connection points of the fabric/layer connects the thread bundles crossing in pairs in a dimensionally stable manner with each other, so that semi-finished products made from the thread structure can be cut to fit the respective end product as required.
  • the thread bundles have the same width and the same thickness in every direction.
  • the woven or non-crimp fabric constructions have a thread spacing of more than 2 mm and, depending on the profile of requirements for the end product, are arranged biaxially and/or multiaxially at right angles and/or in different directions.
  • each bundle of threads has individual threads 5 arranged in multiple layers, which are distributed more or less evenly in the bundle of threads and are enclosed flush and completely by the thermoplastic matrix.
  • the thread bundles have a width 9 and a height 10, so that so many layers of individual threads can be accommodated in each thread bundle and so much thermoplastic matrix can enclose these individual threads that when the thread structure is pressed under the known parameters Pressure, temperature and time, the originally existing distances 7.8 between the individual thread bundles are filled by flowing the individual threads 5 into the adjacent originally released distances 7.8.
  • Fig.6 the presentation of the thread structure according to the invention as a roller conveyor 12, which can be used, for example, for the production of blanks 13, which can be processed as an end product after corresponding 3-D deformation, here for example as a can lid 14.
  • the thread structure can also be produced in the form of a presentation with a carbon look in order to be able to serve corresponding customer groups if necessary.
  • thermoplastics can be used alone, but also duroplastics.
  • thermosetting plastics of only a small thickness since these remain elastic during curing, provided the thickness is correspondingly small.
  • the invention also relates to a method for producing the thread structure according to the invention, which has proven to be advantageous.
  • a liquefied plastic which can be either thermoplastic or duroplastic, is then applied to this intermediate structure so generously that the excess plastic has to be removed after exposure.
  • the lattice structure prepared in this way is recommended to subsequent drying. This can be done without contact, for example by infrared heating or the like in an oven or under an infrared radiator, so that the dried finished product can then the thread structure according to the invention, can be rolled up so as to become roll dressing.
  • thermosetting plastic on the thread structure allows for a high level of flexibility without the risk of breakage, although it is a thermosetting plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Moulding By Coating Moulds (AREA)
EP21215088.2A 2018-02-23 2019-02-25 Structure de fil Pending EP4001480A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102018001440.2A DE102018001440A1 (de) 2018-02-23 2018-02-23 Fadenstruktur
PCT/EP2019/000056 WO2019161969A1 (fr) 2018-02-23 2019-02-25 Structure de fil
EP19721187.3A EP3755833B1 (fr) 2018-02-23 2019-02-25 Structure de fil

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP19721187.3A Division EP3755833B1 (fr) 2018-02-23 2019-02-25 Structure de fil
PCT/EP2019/000056 Previously-Filed-Application WO2019161969A1 (fr) 2018-02-23 2019-02-25 Structure de fil

Publications (1)

Publication Number Publication Date
EP4001480A1 true EP4001480A1 (fr) 2022-05-25

Family

ID=66379859

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19721187.3A Active EP3755833B1 (fr) 2018-02-23 2019-02-25 Structure de fil
EP21215088.2A Pending EP4001480A1 (fr) 2018-02-23 2019-02-25 Structure de fil

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19721187.3A Active EP3755833B1 (fr) 2018-02-23 2019-02-25 Structure de fil

Country Status (6)

Country Link
EP (2) EP3755833B1 (fr)
CN (1) CN112041491B (fr)
DE (1) DE102018001440A1 (fr)
PL (1) PL3755833T3 (fr)
PT (1) PT3755833T (fr)
WO (1) WO2019161969A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012707A1 (fr) * 1988-06-20 1989-12-28 Hagihara Industries, Inc. Tissu en forme de filet
WO1998044179A1 (fr) * 1997-04-03 1998-10-08 Chisso Corporation Reseau renforce par des fibres longues
US20070141335A1 (en) * 2005-12-21 2007-06-21 Perera Willorage R Expansible yarns and threads, and products made using them
EP2813607A1 (fr) * 2012-02-09 2014-12-17 Kabushiki Kaisha Kobe Seiko Sho Étoffe à fils imprégnés et procédé de production d'une étoffe à fils imprégnés

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100926A (en) * 1958-04-03 1963-08-20 Electric Storage Battery Co Method of producing expanded fabric-like material
JPH0823095B2 (ja) * 1989-06-06 1996-03-06 東レ株式会社 補強繊維織物
US5536554A (en) * 1994-09-19 1996-07-16 Wellington Sears Company Reinforcing fabric for power transmission belts
US6846548B2 (en) * 1999-02-19 2005-01-25 Honeywell International Inc. Flexible fabric from fibrous web and discontinuous domain matrix
EP1464743B1 (fr) * 2001-12-19 2011-02-16 Toray Industries, Inc. Tissu tisse renforce en fibre de carbone, pre-impregne et procede de production dudit pre-impregne
US20100215887A1 (en) * 2006-11-22 2010-08-26 Fukui Prefectural Government Reinforced thermoplastic-resin multilayer sheet material, process for producing the same, and method of forming molded thermoplastic-resin composite material
US20090309260A1 (en) * 2008-06-12 2009-12-17 Kenneth Herbert Keuchel Method of delivering a thermoplastic and/or crosslinking resin to a composite laminate structure
CN104105589A (zh) * 2012-01-25 2014-10-15 赫克赛尔控股有限责任公司 层压件的改进或关于层压件的改进

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012707A1 (fr) * 1988-06-20 1989-12-28 Hagihara Industries, Inc. Tissu en forme de filet
WO1998044179A1 (fr) * 1997-04-03 1998-10-08 Chisso Corporation Reseau renforce par des fibres longues
US20070141335A1 (en) * 2005-12-21 2007-06-21 Perera Willorage R Expansible yarns and threads, and products made using them
EP2813607A1 (fr) * 2012-02-09 2014-12-17 Kabushiki Kaisha Kobe Seiko Sho Étoffe à fils imprégnés et procédé de production d'une étoffe à fils imprégnés

Also Published As

Publication number Publication date
EP3755833A1 (fr) 2020-12-30
CN112041491B (zh) 2022-05-03
DE102018001440A1 (de) 2019-08-29
CN112041491A (zh) 2020-12-04
PL3755833T3 (pl) 2022-06-27
WO2019161969A1 (fr) 2019-08-29
EP3755833B1 (fr) 2021-12-22
PT3755833T (pt) 2022-01-20

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