EP1426472A1 - Warp knit tape for use with resins comprising warp and weft threads linked by stitching yarns such that in the binding they maintain a straight configuration without interleaving - Google Patents

Warp knit tape for use with resins comprising warp and weft threads linked by stitching yarns such that in the binding they maintain a straight configuration without interleaving Download PDF

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Publication number
EP1426472A1
EP1426472A1 EP02450250A EP02450250A EP1426472A1 EP 1426472 A1 EP1426472 A1 EP 1426472A1 EP 02450250 A EP02450250 A EP 02450250A EP 02450250 A EP02450250 A EP 02450250A EP 1426472 A1 EP1426472 A1 EP 1426472A1
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EP
European Patent Office
Prior art keywords
warp
stitch
threads
weft threads
resins
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.)
Withdrawn
Application number
EP02450250A
Other languages
German (de)
French (fr)
Inventor
Ulrich Achleitner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP02450250A priority Critical patent/EP1426472A1/en
Publication of EP1426472A1 publication Critical patent/EP1426472A1/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
    • D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
    • D04B21/165—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads with yarns stitched through one or more layers or tows, e.g. stitch-bonded fabrics
    • 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
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
    • D10B2403/02412—Fabric incorporating additional compounds enhancing mechanical properties including several arrays of unbent yarn, e.g. multiaxial fabrics
    • 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
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/03—Shape features
    • D10B2403/031—Narrow fabric of constant width
    • D10B2403/0311—Small thickness fabric, e.g. ribbons, tapes or straps
    • 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 invention relates to a knitted ribbon consisting of a plurality of longitudinal warp threads (5) and transverse end threads (6) and Connection of the same by means of a stitch thread (3).
  • Glass fabric tapes are currently being used on so-called needle ribbon weaving machines the characteristic property of double wefts in the cross thread system of the Commercial as well as with two, depending on the system different types of selvedges. Due to the double shot, this now results in further processing Resin systems with the problem of poor soakability of the glass ribbon liquid resins, since the parallel double shots (1) at the required Close the belt tension when processing the surface - and thus the Difficulty penetrating the tape with resin.
  • warp (5) and weft threads are created by interweaving (crossing) (6) a ripple (technical term: incorporation).
  • the thread system (3) preferably consists of synthetic filament threads and forms stitches by means of a laying rail (4), which are preferably formed by patent tongues however, are formed by sliding needles.
  • Possible stitch bindings are: stitch open, stitch closed, tricot stitch closed, tricot stitch open, Mülock 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)

Abstract

The warp knitted ribbon is composed of longitudinal warps (5), lateral wefts (6) and knitted filaments (3 to lock the warps and wefts together. The ribbon is produced on a needle loom, with a guide bar to lay the knitted filaments. The knitted stitches can be open or closed.

Description

Die Erfindung bezieht sich auf ein gewirktes Band, bestehend aus einer Vielzahl von längs verlaufenden Kettfäden (5) und quer dazu verlaufenden Schlussfäden (6) sowie Verbindung derselben mittels eines Maschenfadens (3).The invention relates to a knitted ribbon consisting of a plurality of longitudinal warp threads (5) and transverse end threads (6) and Connection of the same by means of a stitch thread (3).

Derzeit werden Glasgewebebänder auf sogenannten Nadelbandwebmaschinen mit der charakteristischen Eigenschaft von Doppelschüssen im Querfadensystem des Gewerbes sowie mit zwei, systembedingt verschiedenartigen Webkanten hergestellt. Bedingt durch den Doppelschuss ergibt sich nun bei der Weiterverarbeitung mit Harzsystemen das Problem der schlechten Durchtränkbarkeit des Glasbandes mit flüssigen Harzen, da die parallel liegenden Doppelschüsse (1) bei der erforderlichen Bandspannung bei der Verarbeitung der Oberfläche schließen - und somit die Durchdringung des Bandes mit Harz erschweren.Glass fabric tapes are currently being used on so-called needle ribbon weaving machines the characteristic property of double wefts in the cross thread system of the Commercial as well as with two, depending on the system different types of selvedges. Due to the double shot, this now results in further processing Resin systems with the problem of poor soakability of the glass ribbon liquid resins, since the parallel double shots (1) at the required Close the belt tension when processing the surface - and thus the Difficulty penetrating the tape with resin.

Das kann zur Folge haben, dass im Endprodukt die einzelnen Gewebelagen delaminiert (getrennt) werden können.This can result in the individual fabric layers delaminating in the end product can be (separated).

Des weiteren entsteht durch das Verweben (Verkreuzen) der Kett (5)- und Schussfäden (6) eine Welligkeit (Fachausdruck: Einarbeitung).Furthermore, the warp (5) and weft threads are created by interweaving (crossing) (6) a ripple (technical term: incorporation).

Durch diese Einarbeitung kann das Material nicht die maximale Kraft aufnehmen, welche nur bei geradem Fadenverlauf möglich ist.This incorporation means that the material cannot absorb the maximum force, which is only possible with a straight thread.

Die neuartige Erfindung zielt darauf ab, ein Gewebeband mit nachfolgenden Eigenschaften herzustellen:

  • 1. Beidseitig gleiche Bandkanten
  • 2. kein Doppelschuss erforderlich - aber möglich
  • 3. leichte Durchtränkbarkeit
  • 4. gerader Fadenverlauf der Kett (5) - und Schussfäden (6)
    • The novel invention aims to produce a fabric tape with the following properties:
  • 1. Same band edges on both sides
  • 2. no double shot required - but possible
  • 3. easy soakability
  • 4. straight thread course of the warp (5) and weft threads (6)

    • Die beiliegende Zeichnung macht die Erfindung anschaulich. Es zeigen:

  • Abbildung 1: gewirktes Band nach dem derzeitigen Stand der Technik
  • Abbildung 2: das Legeschema der Schuss (6) -, Kett (5) - und Maschenfäden (3) in Draufsicht
  • Abbildung 3: das Legeschema der Schuss (6) -, Kett (5) - und Maschenfäden (3) im Querschnitt
  • Abbildung 4: Legeschema der Legeschiene (4) sowie des Fadensystems
    • The accompanying drawing illustrates the invention. Show it:
  • Figure 1: knitted ribbon according to the current state of the art
  • Figure 2: The lay-up scheme of the weft (6) -, warp (5) - and stitch threads (3) in top view
  • Figure 3: the laying scheme of the weft (6) -, warp (5) - and stitch threads (3) in cross-section
  • Figure 4: Laying scheme of the laying rail (4) and the thread system

    • Das Fadensystem (3) besteht vorzugsweise aus synthetischen Filamentfäden und bildet mittels einer Legeschiene (4) Maschen, welche durch Patent ― Zungen, vorzugsweise jedoch durch Schiebernadeln gebildet werden.The thread system (3) preferably consists of synthetic filament threads and forms stitches by means of a laying rail (4), which are preferably formed by patent tongues however, are formed by sliding needles.

    Als Maschenbindungen kommen in Frage: Masche offen, Masche geschlossen, Tricot-Masche geschlossen, Tricot-Masche offen, Mülock 1.Possible stitch bindings are: stitch open, stitch closed, tricot stitch closed, tricot stitch open, Mülock 1.

    Diese Maschen umschließen die Kettfäden (5) und ermöglichen es, auch den Schussfaden (6) zu fixieren. Es besteht auch die Möglichkeit, mehrere Schussfäden einzuarbeiten. Das Einlegen eines Schusses ist jedoch nicht bei jeder Masche erforderlich.These stitches enclose the warp threads (5) and make it possible for the To fix the weft thread (6). There is also the possibility of multiple weft threads incorporate. However, inserting a weft is not necessary for every stitch.

    Durch das Verbinden der Kett (5)- und Schussfäden (6) mittels eines Maschenfadens (3) ist es möglich, die Fäden ohne Einwebung gerade ausgestreckt zu fixieren.By connecting the warp (5) and weft threads (6) by means of a stitch thread (3) it is possible to fix the threads straight without stretching.

    Daher steht die volle Festigkeit der Fäden zur Verfügung.The full strength of the threads is therefore available.

    Claims (1)

    Gewirktes Band zur Verwendung in Harzsystemen, bestehend aus einer Vielzahl von längs verlaufenden Kettfäden(5) und quer verlaufenden Schussfäden (6) sowie Maschenfäden (3) zur Verbindung der Kett(5)- und Schussfäden(6), dadurch gekennzeichnet, dass Kett- (5) und Schussfäden (6) mittels Maschenfäden (3) verbunden sind, und dadurch im Fadenverbund ausgestreckt liegen. Als Vermaschungsart kommen in Frage: Masche offen, Masche geschlossen, Tricot-Masche geschlossen, Tricot-Masche offen, Mülock 1.
    Hiezu 1 Blatt Zeichnungen sowie 1 Blatt mit Mustern der neuen Technologie im Vergleich zum Stand der Technik.    Knitted tape for use in resin systems, consisting of a multiplicity of longitudinal warp threads (5) and transverse weft threads (6) and stitch threads (3) for connecting the warp (5) and weft threads (6), characterized in that warp (5) and weft threads (6) are connected by means of stitch threads (3), and are thus stretched out in the thread composite. The following mesh types are possible: open stitch, closed stitch, tricot stitch closed, tricot stitch open, Mülock 1.
    Including 1 sheet of drawings and 1 sheet with samples of the new technology compared to the prior art.
    EP02450250A 2002-10-31 2002-10-31 Warp knit tape for use with resins comprising warp and weft threads linked by stitching yarns such that in the binding they maintain a straight configuration without interleaving Withdrawn EP1426472A1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    EP02450250A EP1426472A1 (en) 2002-10-31 2002-10-31 Warp knit tape for use with resins comprising warp and weft threads linked by stitching yarns such that in the binding they maintain a straight configuration without interleaving

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP02450250A EP1426472A1 (en) 2002-10-31 2002-10-31 Warp knit tape for use with resins comprising warp and weft threads linked by stitching yarns such that in the binding they maintain a straight configuration without interleaving

    Publications (1)

    Publication Number Publication Date
    EP1426472A1 true EP1426472A1 (en) 2004-06-09

    Family

    ID=32309549

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02450250A Withdrawn EP1426472A1 (en) 2002-10-31 2002-10-31 Warp knit tape for use with resins comprising warp and weft threads linked by stitching yarns such that in the binding they maintain a straight configuration without interleaving

    Country Status (1)

    Country Link
    EP (1) EP1426472A1 (en)

    Citations (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2205072A6 (en) * 1972-10-27 1974-05-24 Nebon Carle Gilles Chain knit fabric with unwoven warp and weft layers - which are superimposed and of which corresp warp and weft yarns pass through the same chain stitch
    FR2594858A1 (en) * 1986-02-27 1987-08-28 Chomarat & Cie Textile reinforcement which can be employed for the production of laminated composites

    Patent Citations (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2205072A6 (en) * 1972-10-27 1974-05-24 Nebon Carle Gilles Chain knit fabric with unwoven warp and weft layers - which are superimposed and of which corresp warp and weft yarns pass through the same chain stitch
    FR2594858A1 (en) * 1986-02-27 1987-08-28 Chomarat & Cie Textile reinforcement which can be employed for the production of laminated composites

    Non-Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Title
    DI R. SCHMIDTSCHNEIDER: "Warp knitting technology for production of technical textiles and their applications", INTERNATIONAL TEXTILE BULLETIN, vol. 37, no. 1/91, 31 January 1991 (1991-01-31), CH-8952 Schlieren-Zürich, pages 38 - 41, XP002236516 *

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