EP0428430A1 - Reinforcing yarn for stiffening fabric or technical textile applications and process for its manufacture - Google Patents

Reinforcing yarn for stiffening fabric or technical textile applications and process for its manufacture Download PDF

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Publication number
EP0428430A1
EP0428430A1 EP90403089A EP90403089A EP0428430A1 EP 0428430 A1 EP0428430 A1 EP 0428430A1 EP 90403089 A EP90403089 A EP 90403089A EP 90403089 A EP90403089 A EP 90403089A EP 0428430 A1 EP0428430 A1 EP 0428430A1
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EP
European Patent Office
Prior art keywords
wire
coating
coating fibers
fibers
core wire
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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.)
Granted
Application number
EP90403089A
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German (de)
French (fr)
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EP0428430B1 (en
EP0428430B2 (en
Inventor
Pierre Groshens
Fabrice Covet
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CHARGETEX 16
Lainiere de Picardie BC SAS
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Lainiere de Picardie SA
Lainiere de Picardie BC SAS
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Application filed by Lainiere de Picardie SA, Lainiere de Picardie BC SAS filed Critical Lainiere de Picardie SA
Priority to AT90403089T priority Critical patent/ATE99743T1/en
Publication of EP0428430A1 publication Critical patent/EP0428430A1/en
Publication of EP0428430B1 publication Critical patent/EP0428430B1/en
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    • 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
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated 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
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/402—Yarns in which fibres are united by adhesives; Impregnated yarns or threads the adhesive being one component of the yarn, i.e. thermoplastic yarn
    • 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

Definitions

  • the invention relates to reinforcing threads for interlining or technical textile as well as their manufacturing process.
  • Such threads are intended to be woven or to be inserted into a knitted fabric. They are frequently used in articles intended for interfacing, such as tailor cloths or breastplates. They bring to the products in which they are incorporated their nervousness and their resistance.
  • the aim of the present invention is a composite, partially synthetic reinforcing thread, the structure of which avoids sliding in the texture of the fabric or knit in which it is incorporated, making it possible to avoid sizing of the whole of the textile or knit in which it is incorporated.
  • a reinforcing thread for interlining or technical textile intended to be incorporated into a textile base, characterized in that it comprises a synthetic or artificial core thread, first coating fibers deposited around the core wire, the first coating fibers being bonded to the core wire using an adhesive substance, these first coating fibers forming asperities which give relief to the reinforcement wire.
  • the first coating fibers can constitute a wire which is wound around the core wire. They can also be individualized and be associated with the core thread according to the friction spinning process.
  • this reinforcing wire comprises second coating fibers, housed in the roughness formed by the coating wire and intended to modify the feel of the reinforcing wire.
  • the invention also relates to the method of manufacturing a reinforcing thread for interlining or technical textile in which the first coating fibers are wound around a core thread, the whole core thread-thread of coating being impregnated with an adhesive substance then expressed and dried.
  • second coating fibers are housed in the asperities formed by the first coating fibers, for example by friction spinning.
  • the reinforcing thread for interlining or technical textile is intended to be incorporated into a textile base.
  • this textile base is a fabric
  • the reinforcing thread 1 is woven; when the base is a knitted fabric, the reinforcing threads are incorporated into the mesh system without participating in the formation thereof.
  • they can be introduced parallel to the columns of mesh or, on the contrary, perpendicular to them.
  • These reinforcing wires have a diameter generally greater than 10 hundredths of a millimeter.
  • the reinforcing wire comprises a synthetic or artificial core wire 2 and first coating fibers 3 deposited around the synthetic core wire 2.
  • the first coating fibers 3 are bonded to the core wire 2 to 1. using an adhesive substance 4.
  • the core wire 2 is generally monofilament. However, it can also be multifilament.
  • the core wire 2 is made of a synthetic or artificial material such as polyamide, polyester or viscose.
  • the adhesive substance 4 ensuring the bonding of the first coating fibers 3 on the core wire 2 comprises a thermosetting polymer. It can also, in addition or alternatively, comprise a crosslinkable polymer. Bonding can also be obtained by using a hot-melt polymer or hot-melt fibers associated in admixture with the first coating fibers 3 or incorporated parallel to the core wire 2 at the time of coating.
  • the first coating fibers 3 can constitute a wire which is wound around the core wire 2 ( Figures 1, 3 and 5).
  • the coating wire 3 gives relief to the wire 2.3.
  • These two wires 2,3 associated by bonding are integral with one another. The relief of the yarn thus produced allows it to hang in the texture of the fabric in which it is incorporated and therefore prevents it from slipping.
  • the coating wire 3 can be produced from short fibers or from filaments.
  • the first coating fibers 3 can also be individualized and be associated with the core thread according to the friction spinning process. These fibers 3 are then bonded to the core wire 2 ( Figures 2 and 4). In this way also the first coating fibers give relief to the thread which allows it to hang in the texture of the fabric in which it is incorporated and prevents it from slipping.
  • individualized is used here to describe the condition of the fibers used in the friction spinning process as opposed to fibers which have been subjected to a twist and constitute a yarn or even as opposed to long filaments.
  • the second coating fibers can form a coating wire which is wound in a spiral around the core wire-first coating wire 2, 3 (FIG. 3).
  • the second coating wire 5 preferably forms a helix of the same pitch. It can be multifilament.
  • second individual coating fibers 5 which are inserted between the roughness formed by the first coating fibers 3.
  • the first coating fibers 3 constitute a wire (FIGS. 1, 3 and 5).
  • a coating thread 3 is first of all wound in a spiral around a core thread 2.
  • the apparatus allowing the implementation of this phase manufacturing is shown in Figure 6A.
  • the core wire 2 is supplied from the coil 6 and the coating wire 3 from the hollow coil 7.
  • the core wire 2 is multifilament (2a, 2b), it is composed from several coils such as 6a and 6b.
  • the wrapping spindle 8 winds the wrapping wire 3 in a spiral around the core wire 2.
  • the wire 2, 3, thus obtained, is wound on the spool 9.
  • the core wire 2-coating wire 3 assembly is impregnated with an adhesive substance 4 then expressed and dried which allows the relative joining of these two wires (FIG. 6B) .
  • the wire 2, 3 supplied from the coil 9 passes through an impregnation tank 10 filled with an adhesive substance 11 comprising a thermosetting polymer and / or a thermosetting polymer.
  • the wire 2, 3 is then expressed between the rollers 12, 13 and is then dried during the crossing of the oven 14 and then wound on the coil 15.
  • drying encompasses all the physical or chemical phenomena which may occur after sizing to produce adhesion of the coating wire 3 to the core wire 2.
  • the adhesive polymer can crosslink.
  • the adhesive substance 4 may comprise a thermosetting resin, for example acrylic, based on melanin, formaldehyde, polyester, etc. or on polymers crosslinkable by UV radiation.
  • a thermosetting resin for example acrylic, based on melanin, formaldehyde, polyester, etc. or on polymers crosslinkable by UV radiation.
  • the first coating fibers 3 can be individualized and be associated with the core thread according to the friction spinning process. These fibers 3 are then bonded to the core wire 2.
  • the covering phase of the first coating fibers described above (FIG. 3A) is replaced by a phase of coating the first fibers 3 by friction spinning (FIG. 3C ). The other phases of the process are then unchanged.
  • first coating fibers 3 constitute a wire or, whether they are individualized and associated with the core wire by friction spinning, it is possible to improve the feel of the wire by depositing second coating fibers 5 on the first coating fibers 3.
  • the second coating fibers 5 are housed in the asperities formed by the first coating fibers 3. they can be produced in two ways:
  • the second coating can be carried out with staple fibers according to the method in itself known of friction spinning ( Figure 6C).
  • the coil 15 of glued yarn is used to feed a spinning machine 16 comprising drums 17, 18 of perforated spinning. These drums are also fed via the rollers 19 by a wick of fibers 20, the fibers 20 are associated with the core wire-coating fiber 2,3 bonded.
  • the fibers 20 then constitute the second coating fibers 5 housed in the asperities formed by the coating wire 3 and producing the wire shown in FIG. 3.
  • This wire, ready for use, is then wound on the spool 21 It is also possible to introduce fibers 23 parallel to the core, before depositing the coating fibers 5, in order to obtain a touch of superior quality.
  • the second coating fibers 5 can also form a wire which is itself wrapped over the whole core wire-first coating fibers 2,3 ( Figure 6D).
  • the core core-first coating fibers 2.3 size is then used to feed a wrapping spindle 22 together with a hollow coil 23 of the coating wire 3. After wrapping, the wire obtained is wound on a reel 24
  • the core wire 2 is a large titration wire, for example of 300 decitex.
  • the first coating fibers 3 preferably constitute a thread with a titration of between 100 and 150 decitex.
  • the second coating fibers can be natural, artificial or synthetic in titrations of the order of 0.5 to 9 decitex.
  • the spiral formed by the coating wire 3 preferably has around 2 to 5 turns per millimeter.
  • the synthetic reinforcing yarn 1 thus obtained does not slip relative to the textile texture in which they are incorporated, their feel is mainly determined by the nature of the coating fibers 5 and can therefore be freely controlled. They can advantageously replace the covered horsehair threads.
  • the core threads can have great rigidity; the length of the coating wire is greater than that of the core wire.
  • the coating wire can be smooth.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Woven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Details Of Garments (AREA)

Abstract

A reinforcing yarn (1) for stiffening or technical textile intended to be incorporated in a textile base. It comprises a synthetic or artificial core yarn (2) of the first coating fibres (3) deposited around the core yarn (2). The first coating fibres (3) are adhesively bonded to the core yarn (2). The invention also relates to the process for the manufacture of this reinforcing yarn (1). <IMAGE>

Description

L'invention concerne des fils de renfort pour entoilage ou textile technique ainsi que leur procédé de fabrication.The invention relates to reinforcing threads for interlining or technical textile as well as their manufacturing process.

De tels fils sont destinés à être tissés ou à être insérés dans un tricot. Ils sont fréquemment utilisés dans les articles destinés à l'entoilage du type toiles tailleurs ou plastrons. Ils apportent aux produits dans lesquels ils sont incorporés leur nervosité et leur résistance.Such threads are intended to be woven or to be inserted into a knitted fabric. They are frequently used in articles intended for interfacing, such as tailor cloths or breastplates. They bring to the products in which they are incorporated their nervousness and their resistance.

Dans l'entoilage on utilise depuis longtemps pour réaliser ces fils de renfort des fils de crin animal. On a déjà chercher à remplacer ces fils naturels par des fils synthétiques monofilaments qui présentent une nervosité et une résistance proches de celles du crin naturel. Toutefois, l'utilisation de ces fibres synthétiques reste limitée car les fils ainsi obtenus ont tendance à glisser à l'intérieur de la contexture des tissus.In the interlining, it has been used for a long time to make these reinforcing threads of animal hair. We have already sought to replace these natural threads with synthetic monofilament threads which have a nervousness and a resistance close to those of natural hair. However, the use of these synthetic fibers remains limited because the threads thus obtained tend to slide inside the texture of the fabrics.

Afin d'éviter ces glissements, on a proposé d'encoller, par exemple avec des résines acryliques, le tissu après les opérations de tissage ou de tricotage. Cette méthode permet d'éviter les glissements mentionnés plus haut mais rigidifie le textile puisque, à la suite de l'encollage, les fils sont tous liés les uns aux autres à leur point de contact. Cette méthode ne permet donc pas l'obtention de textiles qui, tout en ayant la nervosité et la résistance recherchées, conservent une bonne souplesse et une bonne résilience.In order to avoid these slippages, it has been proposed to glue, for example with acrylic resins, the fabric after the weaving or knitting operations. This method avoids the slippages mentioned above but stiffens the textile since, after gluing, the threads are all linked to each other at their point of contact. This method therefore does not make it possible to obtain textiles which, while having the desired nervousness and resistance, retain good flexibility and good resilience.

On a également envisagé de retordre ensemble deux fils de même longueur, par exemple un fil monofilament et un fil poilu. La surface rugueuse du fil poilu assure l'antiglisse du fil composite (FR-A-2 270 355). Un tel procédé n'est pas utilisable avec des fils ayant une grande rigidité qui resteraient rectilignes lors d'une tentative de retordage.It has also been envisaged to twist together two threads of the same length, for example a monofilament thread and a hairy thread. The rough surface of the hairy thread ensures the anti-slip of the composite thread (FR-A-2 270 355). Such a method cannot be used with threads having a high rigidity which would remain rectilinear during an attempt at twisting.

Le but de la présente invention est un fil de renfort composite, partiellement synthétique dont la structure évite le glissement dans la contexture du tissu ou du tricot auxquels il est incorporé, permettant d'éviter l'encollage de l'ensemble du textile ou du tricot auquel il est incorporé.The aim of the present invention is a composite, partially synthetic reinforcing thread, the structure of which avoids sliding in the texture of the fabric or knit in which it is incorporated, making it possible to avoid sizing of the whole of the textile or knit in which it is incorporated.

Pour résoudre ce problème, il est proposé, selon l'invention, un fil de renfort pour entoilage ou textile technique destiné à être incorporé dans une base textile, caractérisé en ce qu'il comporte un fil d'âme synthétique ou artificiel, des premières fibres d'enrobage déposées autour du fil d'âme, les premières fibres d'enrobage étant collées sur le fil d'âme à l'aide d'une substance adhésive, ces premières fibres d'enrobage formant des aspérités qui donnent du relief au fil de renfort.To solve this problem, there is proposed, according to the invention, a reinforcing thread for interlining or technical textile intended to be incorporated into a textile base, characterized in that it comprises a synthetic or artificial core thread, first coating fibers deposited around the core wire, the first coating fibers being bonded to the core wire using an adhesive substance, these first coating fibers forming asperities which give relief to the reinforcement wire.

Les premières fibres d'enrobage peuvent constituer un fil qui est enroulé autour du fil d'âme. Elles peuvent également être individualisées et être associées au fil d'âme selon le procédé de filature à friction.The first coating fibers can constitute a wire which is wound around the core wire. They can also be individualized and be associated with the core thread according to the friction spinning process.

Selon un mode de réalisation préféré, ce fil de renfort comporte des deuxièmes fibres d'enrobage, logées dans les aspérités formées par le fil d'enrobage et destinées à modifier le toucher du fil de renfort.According to a preferred embodiment, this reinforcing wire comprises second coating fibers, housed in the roughness formed by the coating wire and intended to modify the feel of the reinforcing wire.

L'invention concerne également le procédé de fabrication d'un fil de renfort pour entoilage ou textile technique dans lequel des premières fibres d'enrobage sont enroulées autour d'un fil d'âme, l'ensemble fil d'âme-fil d'enrobage étant imprégné d'une substance adhésive puis exprimé et séché.The invention also relates to the method of manufacturing a reinforcing thread for interlining or technical textile in which the first coating fibers are wound around a core thread, the whole core thread-thread of coating being impregnated with an adhesive substance then expressed and dried.

Selon un mode de réalisation préféré de ce procédé de fabrication, des deuxièmes fibres d'enrobage sont logées dans les aspérités formées par les premières fibres d'enrobage, par exemple par filature à friction.According to a preferred embodiment of this manufacturing process, second coating fibers are housed in the asperities formed by the first coating fibers, for example by friction spinning.

L'invention sera décrite en détail en référence aux dessins annexés dans lesquels :

  • - La figure 1 représente le fil de renfort de l'invention dans un premier mode de réalisation.
  • - Les figures 2A et 2B représentent le fil de renfort de l'invention selon un deuxième mode de réalisation, respectivement vue de face et vue en coupe.
  • - La figure 3 représente le fil de renfort de l'invention dans un troisième mode de réalisation.
  • - Les figures 4A et 4B représentent le fil de renfort de l'invention selon un quatrième mode de réalisation, respectivement vue de face et vue en coupe.
  • - Les figures 5A et 5B représentent le fil de renfort de l'invention selon un cinquième mode de réalisation, respectivement vue de face et vue en coupe.
  • - La figure 6A représente le guipage du fil d'enrobage autour du fil d'âme.
  • - La figure 6B représente l'encollage du fil guipé.
  • - La figure 6C représente l'association des fibres d'enrobage sur le fil par filature à friction.
  • - La figure 6D représente l'association des deuxièmes fibres d'enrobage par guipage sur le fil.
The invention will be described in detail with reference to the accompanying drawings in which:
  • - Figure 1 shows the reinforcing wire of the invention in a first embodiment.
  • - Figures 2A and 2B show the reinforcement wire of the invention according to a second embodiment, respectively front view and sectional view.
  • - Figure 3 shows the reinforcing wire of the invention in a third embodiment.
  • - Figures 4A and 4B show the reinforcing wire of the invention according to a fourth embodiment, respectively front view and sectional view.
  • - Figures 5A and 5B show the reinforcing wire of the invention according to a fifth embodiment, respectively front view and sectional view.
  • - Figure 6A shows the wrapping of the coating wire around the core wire.
  • - Figure 6B shows the bonding of the wrapped yarn.
  • - Figure 6C shows the association of coating fibers on the wire by friction spinning.
  • - Figure 6D shows the association of the second coating fibers by covering on the wire.

Le fil de renfort pour entoilage ou textile technique est destiné à être incorporé dans une base textile. Lorsque cette base textile est un tissu, le fil de renfort 1 est tissé ; lorsque la base est un tricot, les fils de renfort sont incorporés au système de mailles sans participer à la formation de celles-ci. Selon la destination du textile, ils peuvent être introduits parallèlement aux colonnes de mailles ou au contraire perpendiculairement à celles-ci.The reinforcing thread for interlining or technical textile is intended to be incorporated into a textile base. When this textile base is a fabric, the reinforcing thread 1 is woven; when the base is a knitted fabric, the reinforcing threads are incorporated into the mesh system without participating in the formation thereof. Depending on the destination of the textile, they can be introduced parallel to the columns of mesh or, on the contrary, perpendicular to them.

Ces fils de renfort ont un diamètre généralement supérieur à 10 centièmes de millimètre.These reinforcing wires have a diameter generally greater than 10 hundredths of a millimeter.

Le fil de renfort comporte un fil d'âme synthétique ou artificiel 2 et des premières fibres d'enrobage 3 déposées autour du fil d'âme synthétique 2. Les premières fibres d'enrobage 3 sont collées sur le fil d'âme 2 à l'aide d'une substance adhésive 4. Le fil d'âme 2 est généralement monofilament. Toutefois, il peut également être multifilament.The reinforcing wire comprises a synthetic or artificial core wire 2 and first coating fibers 3 deposited around the synthetic core wire 2. The first coating fibers 3 are bonded to the core wire 2 to 1. using an adhesive substance 4. The core wire 2 is generally monofilament. However, it can also be multifilament.

Le fil d'âme 2 est réalisé dans une matière synthétique ou artificielle telle que le polyamide, le polyester ou la viscose.The core wire 2 is made of a synthetic or artificial material such as polyamide, polyester or viscose.

La substance adhésive 4 assurant le collage des premières fibres d'enrobage 3 sur le fil d'âme 2 comporte un polymère thermodurcissable. Il peut également, de plus ou alternativement, comporter un polymère réticulable. Le collage peut aussi être obtenu en utilisant un polymère thermofusible ou des fibres thermofusibles associées en mélange aux premières fibres d'enrobage 3 ou incorporées parallèlement au fil d'âme 2 au moment de l'enrobage.The adhesive substance 4 ensuring the bonding of the first coating fibers 3 on the core wire 2 comprises a thermosetting polymer. It can also, in addition or alternatively, comprise a crosslinkable polymer. Bonding can also be obtained by using a hot-melt polymer or hot-melt fibers associated in admixture with the first coating fibers 3 or incorporated parallel to the core wire 2 at the time of coating.

Les premières fibres d'enrobage 3 peuvent constituer un fil qui est enroulé autour du fil d'âme 2 (figures 1, 3 et 5). Le fil d'enrobage 3 donne un relief au fil 2,3. Ces deux fils 2,3 associés par collage sont solidaires l'un de l'autre. Le relief du fil ainsi réalisé permet son accrochage dans la contexture du tissu auquel il est incorporé et donc évite son glissement. Le fil d'enrobage 3 peut être réalisé à partir de fibres courtes ou à partir de filaments.The first coating fibers 3 can constitute a wire which is wound around the core wire 2 (Figures 1, 3 and 5). The coating wire 3 gives relief to the wire 2.3. These two wires 2,3 associated by bonding are integral with one another. The relief of the yarn thus produced allows it to hang in the texture of the fabric in which it is incorporated and therefore prevents it from slipping. The coating wire 3 can be produced from short fibers or from filaments.

Les premières fibres d'enrobage 3 peuvent aussi être individualisées et être associées au fil d'âme selon le procédé de filature à friction. Ces fibres 3 sont ensuite collées sur le fil d'âme 2 (figures 2 et 4). De cette manière également les premières fibres d'enrobage donnent un relief au fil ce qui permet son accrochage dans la contexture du tissu auquel il est incorporé et évite son glissement.The first coating fibers 3 can also be individualized and be associated with the core thread according to the friction spinning process. These fibers 3 are then bonded to the core wire 2 (Figures 2 and 4). In this way also the first coating fibers give relief to the thread which allows it to hang in the texture of the fabric in which it is incorporated and prevents it from slipping.

On utilise ici le terme "individualisées" pour qualifier l'état des fibres utilisées dans le procédé de filature à friction par opposition aux fibres qui ont été soumises à une torsion et constituent un fil ou encore par opposition aux filaments de grande longueur.The term "individualized" is used here to describe the condition of the fibers used in the friction spinning process as opposed to fibers which have been subjected to a twist and constitute a yarn or even as opposed to long filaments.

Il est particulièrement intéressant d'améliorer le toucher du fil muni des premières fibres d'enrobage 2, 3 en associant des deuxièmes fibres d'enrobage 5 logées dans les aspérités formées par les premières fibres d'enrobage 3.It is particularly advantageous to improve the feel of the wire provided with the first coating fibers 2, 3 by combining second coating fibers 5 housed in the roughness formed by the first coating fibers 3.

Les deuxièmes fibres d'enrobage peuvent former un fil d'enrobage qui est enroulé en spirale autour de l'ensemble fil d'âme- premier fil d'enrobage 2, 3 (figure 3). Dans le cas où les premières fibres d'enrobage 3 constituent elles-­mêmes un fil enroulé en hélice autour de l'âme 2, le deuxième fil d'enrobage 5 forme de préférence une hélice de même pas. Il peut être multifilament.The second coating fibers can form a coating wire which is wound in a spiral around the core wire-first coating wire 2, 3 (FIG. 3). In the case where the first coating fibers 3 themselves constitute a wire wound in a helix around the core 2, the second coating wire 5 preferably forms a helix of the same pitch. It can be multifilament.

Il est également possible d'utiliser des deuxièmes fibres d'enrobage 5 individualisées qui s'intercalent entre les aspérités formées par les premières fibres d'enrobage 3.It is also possible to use second individual coating fibers 5 which are inserted between the roughness formed by the first coating fibers 3.

Selon un premier mode de réalisation décrit ci-après les premières fibres d'enrobage 3 constituent un fil (figures 1, 3 et 5).According to a first embodiment described below, the first coating fibers 3 constitute a wire (FIGS. 1, 3 and 5).

Lors de la fabrication du fil de renfort 1 pour entoilage ou textile technique, un fil d'enrobage 3 est tout d'abord enroulé en spirale autour d'un fil d'âme 2. L'appareillage permettant la mise en oeuvre de cette phase de fabrication est représenté sur la figure 6A. Le fil d'âme 2 est alimenté à partir de la bobine 6 et le fil d'enrobage 3 à partir de la bobine creuse 7. Lorsque le fil d'âme 2 est multifilament (2a, 2b), il est composé à partir de plusieurs bobines telles que 6a et 6b.During the production of the reinforcing thread 1 for interlining or technical textile, a coating thread 3 is first of all wound in a spiral around a core thread 2. The apparatus allowing the implementation of this phase manufacturing is shown in Figure 6A. The core wire 2 is supplied from the coil 6 and the coating wire 3 from the hollow coil 7. When the core wire 2 is multifilament (2a, 2b), it is composed from several coils such as 6a and 6b.

La broche de guipage 8 réalise l'enroulement du fil d'enrobage 3 en spirale autour du fil d'âme 2. Le fil 2, 3, ainsi obtenu, est enroulé sur la bobine 9.The wrapping spindle 8 winds the wrapping wire 3 in a spiral around the core wire 2. The wire 2, 3, thus obtained, is wound on the spool 9.

Après cette phase d'enroulement ou de guipage, l'ensemble fil d'âme 2-fil d'enrobage 3 est imprégné d'une substance adhésive 4 puis exprimé et séché ce qui permet la solidarisation relative de ces deux fils ( Figure 6B ). A cet effet, le fil 2, 3 alimenté à partir de la bobine 9 traverse un bac d'imprégnation 10 rempli d'une substance adhésive 11 comportant un polymère thermodurcissable et/ou un polymère thermoréticulable. Le fil 2, 3 est ensuite exprimé entre les rouleaux 12, 13 et est ensuite séché lors de la traversée du four 14 puis enroulé sur la bobine 15.After this winding or wrapping phase, the core wire 2-coating wire 3 assembly is impregnated with an adhesive substance 4 then expressed and dried which allows the relative joining of these two wires (FIG. 6B) . To this end, the wire 2, 3 supplied from the coil 9 passes through an impregnation tank 10 filled with an adhesive substance 11 comprising a thermosetting polymer and / or a thermosetting polymer. The wire 2, 3 is then expressed between the rollers 12, 13 and is then dried during the crossing of the oven 14 and then wound on the coil 15.

Le terme "séchage" utilisé ici englobe tous les phénomènes physiques ou chimiques susceptibles de se produire après encollage pour produire l'adhésion du fil d'enrobage 3 sur le fil d'âme 2. En particulier, lors de la traversée de ce four, le polymère adhésif peut réticuler.The term “drying” used here encompasses all the physical or chemical phenomena which may occur after sizing to produce adhesion of the coating wire 3 to the core wire 2. In particular, when passing through this oven, the adhesive polymer can crosslink.

D'autres procédés de solidarisation du fil d'âme avec les fibres d'enrobage peuvent être utilisés tels que :
- Imprégnation des fils avec des polymères liquides en phase solvant.
- Imprégnation des fils avec des polymères thermofusibles amenés en contact en état fondu soit par imprégnation dans un bac maintenu à haute température, soit par filière, soit par pulvérisation.
- En incorporant des fibres thermofusibles qui seront mises en fusion ultérieurement thermiquement et assureront le collage des fils entre eux ou des fibres d'enrobage avec le fil d'âme.
- Par imprégnation de résines synthétiques ou de polymères sensibles à des rayonnements de type UV, micro­ondes, etc...Other methods of joining the core wire with the coating fibers can be used such as:
- Impregnation of wires with liquid polymers in solvent phase.
- Impregnation of the wires with hot-melt polymers brought into contact in the molten state either by impregnation in a tank maintained at high temperature, either by die or by spraying.
- By incorporating hot-melt fibers which will be melted later thermally and will ensure the bonding of the wires together or of the coating fibers with the core wire.
- By impregnating synthetic resins or polymers sensitive to UV-type radiation, microwaves, etc.

La substance adhésive 4 peut comporter une résine thermodurcissable, par exemple acrylique, à base de mélanine, formol, polyester, etc... ou de polymères réticulables par rayonnement UV.The adhesive substance 4 may comprise a thermosetting resin, for example acrylic, based on melanin, formaldehyde, polyester, etc. or on polymers crosslinkable by UV radiation.

Selon un deuxième mode de réalisation les premières fibres d'enrobage 3 peuvent être individualisées et être associées au fil d'âme selon le procédé de filature à friction. Ces fibres 3 sont ensuite collées sur le fil d'âme 2. La phase de guipage des premières fibres d'enrobage décrite plus haut (figure 3A) est remplacée par une phase d'enrobage des premières fibres 3 par filature à friction (figure 3C). Les autres phases du procédé sont alors inchangées.According to a second embodiment, the first coating fibers 3 can be individualized and be associated with the core thread according to the friction spinning process. These fibers 3 are then bonded to the core wire 2. The covering phase of the first coating fibers described above (FIG. 3A) is replaced by a phase of coating the first fibers 3 by friction spinning (FIG. 3C ). The other phases of the process are then unchanged.

Que les premières fibres d'enrobage 3 constituent un fil ou, qu'elles soient individualisées et associées au fil d'âme par filature à friction il est possible d'améliorer le toucher du fil en déposant des deuxièmes fibres d'enrobage 5 sur les premières fibres d'enrobage 3. Les deuxièmes fibres d'enrobage 5 sont logées dans les aspérités formées par les premières fibres d'enrobage 3.elles peuvent être réalisées de deux manières :Whether the first coating fibers 3 constitute a wire or, whether they are individualized and associated with the core wire by friction spinning, it is possible to improve the feel of the wire by depositing second coating fibers 5 on the first coating fibers 3. The second coating fibers 5 are housed in the asperities formed by the first coating fibers 3. they can be produced in two ways:

- Le deuxième enrobage peut être réalisé avec des fibres discontinues selon la méthode en elle-même connue de la filature à friction ( Figure 6C ). La bobine 15 de fil encollé est utilisée pour alimenter une machine à filer 16 comportant des tambours 17, 18 de filature perforés. Ces tambours sont également alimentés par l'intermédiaire des rouleaux 19 par une mèche de fibres 20, les fibres 20 sont associées à l'ensemble fil d'âme-fibres d'enrobage 2,3 encollé. Les fibres 20 constituent alors les deuxièmes fibres d'enrobage 5 logées dans les aspérités formées par le fil d'enrobage 3 et produisant le fil représenté sur la figure 3. Ce fil, prêt à l'utilisation, est alors enroulé sur la bobine 21. Il est également possible d'introduire des fibres 23 parallèlement à l'ame, avant le dépôt des fibres d'enrobage 5, pour obtenir un toucher de qualité supérieure.- The second coating can be carried out with staple fibers according to the method in itself known of friction spinning (Figure 6C). The coil 15 of glued yarn is used to feed a spinning machine 16 comprising drums 17, 18 of perforated spinning. These drums are also fed via the rollers 19 by a wick of fibers 20, the fibers 20 are associated with the core wire-coating fiber 2,3 bonded. The fibers 20 then constitute the second coating fibers 5 housed in the asperities formed by the coating wire 3 and producing the wire shown in FIG. 3. This wire, ready for use, is then wound on the spool 21 It is also possible to introduce fibers 23 parallel to the core, before depositing the coating fibers 5, in order to obtain a touch of superior quality.

- Les deuxièmes fibres d'enrobage 5 peuvent aussi former un fil qui est lui-même guipé sur l'ensemble fil d'âme-premières fibres d'enrobage 2,3 ( Figure 6D ). L'ensemble fil d'âme -premières fibres d'enrobage 2,3 encollé est alors utilisé pour alimenter une broche de guipage 22 conjointement avec une bobine creuse 23 du fil d'enrobage 3. Après guipage, le fil obtenu est enroulé sur une bobine 24- The second coating fibers 5 can also form a wire which is itself wrapped over the whole core wire-first coating fibers 2,3 (Figure 6D). The core core-first coating fibers 2.3 size is then used to feed a wrapping spindle 22 together with a hollow coil 23 of the coating wire 3. After wrapping, the wire obtained is wound on a reel 24

Le fil d'âme 2 est un fil de gros titrage, par exemple de 300 décitex. Les premières fibres d'enrobage 3 constituent de préférence un fil d'un titrage compris entre 100 et 150 décitex. Les deuxièmes fibres d'enrobage peuvent être naturelles, artificielles ou synthétiques dans des titrages de l'ordre de 0,5 à 9 décitex. La spirale formée par le fil d'enrobage 3 présente de préférence de l'ordre de 2 à 5 spires au millimètre.The core wire 2 is a large titration wire, for example of 300 decitex. The first coating fibers 3 preferably constitute a thread with a titration of between 100 and 150 decitex. The second coating fibers can be natural, artificial or synthetic in titrations of the order of 0.5 to 9 decitex. The spiral formed by the coating wire 3 preferably has around 2 to 5 turns per millimeter.

Le fils de renfort 1 synthétiques ainsi obtenus ne glissent pas par rapport à la contexture textile à laquelle ils sont incorporés, leur toucher est principalement déterminé par la nature des fibres d'enrobage 5 et peut donc être librement contrôlé. Ils peuvent avantageusement remplacer les fils de crin de cheval guipés.The synthetic reinforcing yarn 1 thus obtained does not slip relative to the textile texture in which they are incorporated, their feel is mainly determined by the nature of the coating fibers 5 and can therefore be freely controlled. They can advantageously replace the covered horsehair threads.

Les fils d'âme peuvent avoir une grande rigidité ; la longueur du fil d'enrobage est plus grande que celle du fil d'âme. Le fil d'enrobage peut être lisse.The core threads can have great rigidity; the length of the coating wire is greater than that of the core wire. The coating wire can be smooth.

Claims (18)

1. Fil de renfort (1) pour entoilage ou textile technique, destiné à être incorporé dans une base textile, caractérisé en ce qu'il comporte :
- un fil d'âme synthétique ou artificiel (2) ;
- des premières fibres d'enrobage (3) déposées autour du fil d'âme (2) ;
et que les premières fibres d'enrobage (3) sont collées sur le fil d'âme (2) à l'aide d'une substance adhésive (4), ces premières fibres d'enrobage formant des aspérités qui donnent du relief au fil de renfort.1. Reinforcement thread (1) for interlining or technical textile, intended to be incorporated into a textile base, characterized in that it comprises:
- a synthetic or artificial core thread (2);
- first coating fibers (3) deposited around the core wire (2);
and that the first coating fibers (3) are bonded to the core wire (2) using an adhesive substance (4), these first coating fibers forming asperities which give relief to the wire reinforcement. 2. Fil de renfort selon la revendication caractérisé en ce que les premières fibres d'enrobage (3) constituent un fil qui est enroulé autour du fil d'âme (2).2. Reinforcement wire according to claim characterized in that the first coating fibers (3) constitute a wire which is wound around the core wire (2). 3. Fil de renfort selon la revendication caractérisé en ce que les premières fibres d'enrobage (3) sont individualisées.3. Reinforcement wire according to claim characterized in that the first coating fibers (3) are individualized. 4. Fil de renfort selon la revendication 1, caractérisé en ce que le fil d'âme (2) est monofilament.4. Reinforcement wire according to claim 1, characterized in that the core wire (2) is monofilament. 5. Fil de renfort selon la revendication caractérisé en ce que le fil d'âme (2) est multifilament.5. Reinforcement wire according to claim characterized in that the core wire (2) is multifilament. 6. Fil de renfort selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le fil d'âme (2) est en polyamide.6. Reinforcement wire according to any one of claims 1 to 5, characterized in that the core wire (2) is made of polyamide. 7. Fil de renfort selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le fil d'âme (2) est en polyester.7. Reinforcement wire according to any one of claims 1 to 5, characterized in that the core wire (2) is made of polyester. 8. Fil de renfort selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le fil d'âme (2) est en viscose.8. Reinforcement wire according to any one of claims 1 to 5, characterized in that the core wire (2) is made of viscose. 9. Fil de renfort selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la substance adhésive (4) assurant le collage des premières fibres d'enrobage (3) sur le fil d'âme (2) comporte un polymère thermofusible.9. Reinforcement wire according to any one of claims 1 to 8, characterized in that the adhesive substance (4) ensuring the bonding of the first coating fibers (3) on the core wire (2) comprises a polymer hot melt. 10. Fil de renfort selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la substance adhésive (4) assurant le collage des premières fibres d'enrobage (3) sur le fil d'âme (2) comporte un polymère thermodurcissable.10. Reinforcement wire according to any one of claims 1 to 8, characterized in that the substance adhesive (4) ensuring the bonding of the first coating fibers (3) on the core wire (2) comprises a thermosetting polymer. 11. Fil de renfort selon l'une quelconque des revendications à 8, caractérisé en ce que la substance adhésive (4) assurant le collage des premières fibres d'enrobage (3) sur le fil d'âme (2) comporte un polymère réticulable.11. Reinforcement wire according to any one of claims to 8, characterized in that the adhesive substance (4) ensuring the bonding of the first coating fibers (3) on the core wire (2) comprises a crosslinkable polymer . 12. Fil de renfort selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'il comporte des deuxièmes fibres d'enrobage (5) logées dans les aspérités formées par les premières fibres d'enrobage (3) et destinées à modifier le toucher du fil de renfort.12. Reinforcement wire according to any one of claims 1 to 11, characterized in that it comprises second coating fibers (5) housed in the asperities formed by the first coating fibers (3) and intended for modify the feel of the reinforcement wire. 13. Fil de renfort selon la revendication 12, caractérisé en ce que les deuxièmes fibres d'enrobage (5) forment un deuxième fil d'enrobage, ce deuxième fil d'enrobage étant multifilament.13. Reinforcement wire according to claim 12, characterized in that the second coating fibers (5) form a second coating wire, this second coating wire being multifilament. 14. Fil de renfort selon la revendication 12, caractérisé en ce que les deuxièmes fibres d'enrobage (5) sont discontinues.14. Reinforcement wire according to claim 12, characterized in that the second coating fibers (5) are discontinuous. 15. Procédé de fabrication d'un fil de renfort (1) pour entoilage ou textile technique, caractérisé en ce que :
- des premières fibres d'enrobage (3) sont enroulées en spirale autour d'un fil d'âme (2),
- l'ensemble fil d'âme (2)-fibres d'enrobage (3) est imprégné d'une substance adhésive (4) puis exprimé et séché.15. Method for manufacturing a reinforcing thread (1) for interlining or technical textile, characterized in that:
- first coating fibers (3) are wound in a spiral around a core wire (2),
- The core wire (2) - coating fibers (3) assembly is impregnated with an adhesive substance (4) then expressed and dried. 16. Procédé de fabrication selon la revendication 15, caractérisé en ce que des deuxièmes fibres d'enrobage (5) sont logées dans les aspérités formées par les premières fibres d'enrobage (3).16. The manufacturing method according to claim 15, characterized in that second coating fibers (5) are housed in the asperities formed by the first coating fibers (3). 17. Procédé de fabrication selon la revendication 16, caractérisé en ce que les deuxièmes fibres d'enrobage (5) sont enroulées en spirale autour du fil d'âme (2).17. The manufacturing method according to claim 16, characterized in that the second coating fibers (5) are wound in a spiral around the core wire (2). 18. Procédé de fabrication selon la revendication 17, caractérisé en ce que les deuxièmes fibres d'enrobage (5) sont associées à l'ensemble fil d'âme (2)-premières fibres d'enrobage (3) par filature à friction.18. The manufacturing method according to claim 17, characterized in that the second coating fibers (5) are associated with the core wire assembly (2) -first coating fibers (3) by friction spinning.
EP90403089A 1989-11-15 1990-10-31 Reinforcing yarn for stiffening fabric or technical textile applications and process for its manufacture Expired - Lifetime EP0428430B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90403089T ATE99743T1 (en) 1989-11-15 1990-10-31 REINFORCEMENT YARN FOR REINFORCEMENT INSERTS OR TECHNICAL TEXTILE APPLICATIONS AND PROCESS FOR ITS MANUFACTURE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8914975A FR2654442B1 (en) 1989-11-15 1989-11-15 REINFORCEMENT THREAD FOR LINING OR TECHNICAL TEXTILE AND ITS MANUFACTURING METHOD.
FR8914975 1989-11-15

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EP0428430A1 true EP0428430A1 (en) 1991-05-22
EP0428430B1 EP0428430B1 (en) 1994-01-05
EP0428430B2 EP0428430B2 (en) 1999-09-08

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EP (1) EP0428430B2 (en)
JP (1) JP2927533B2 (en)
AT (1) ATE99743T1 (en)
CA (1) CA2029775C (en)
DE (1) DE69005796T3 (en)
ES (1) ES2047885T5 (en)
FR (1) FR2654442B1 (en)
GR (1) GR3032050T3 (en)

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CN109137198A (en) * 2018-10-11 2019-01-04 桐乡市巨豪纺织有限公司 A kind of high abrasion yarn

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FR2745595B1 (en) * 1996-02-29 1998-05-22 Picardie Lainiere THERMAL ADHESIVE COVER AND MANUFACTURING METHOD THEREOF
DE19636722C2 (en) * 1996-09-10 1999-07-08 Kufner Textilwerke Gmbh Nonwoven composite for clothing, process for its production and its use
US20050042412A1 (en) * 1996-12-31 2005-02-24 Bruner Jeffrey W. Composite elastomeric yarns and fabric
US6658835B1 (en) * 2000-11-28 2003-12-09 Honeywell International Inc. Untwisted wrapped singles yarns and carpets manufactured therefrom
FR2835852B1 (en) * 2002-02-08 2004-04-30 Ferrari S Tissage & Enduct Sa SHEATH YARN, TEXTILE AND METHOD FOR MANUFACTURING SUCH A YARN
US7721518B2 (en) * 2007-01-26 2010-05-25 Pascale Industries, Inc. Yarns for cut-resistant webbing and other products
US20110079235A1 (en) * 2009-08-26 2011-04-07 Reed Gladys B System, apparatus, and method for hair weaving thread
CN107217360B (en) * 2017-05-23 2019-06-25 东华大学 The gradual change composite spinning mechanism and method and purposes of the preposition mobile coupling looping of varied tention
CN107190391B (en) * 2017-05-23 2019-11-08 东华大学 Endless tow varied tention converges coupling looping gradual change spinning mechanism and method and purposes naturally
CN114150419B (en) * 2021-12-07 2023-03-21 吴江市青艳纺织整理有限公司 Preparation process of high-toughness woven fabric

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CN109137198A (en) * 2018-10-11 2019-01-04 桐乡市巨豪纺织有限公司 A kind of high abrasion yarn

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DE69005796T3 (en) 2000-04-27
ES2047885T5 (en) 2000-02-16
ES2047885T3 (en) 1994-03-01
CA2029775C (en) 1999-04-13
US5414984A (en) 1995-05-16
DE69005796D1 (en) 1994-02-17
EP0428430B1 (en) 1994-01-05
FR2654442A1 (en) 1991-05-17
EP0428430B2 (en) 1999-09-08
FR2654442B1 (en) 1992-02-07
GR3032050T3 (en) 2000-03-31
CA2029775A1 (en) 1991-05-16
ATE99743T1 (en) 1994-01-15
DE69005796T2 (en) 1994-06-09
JPH03174044A (en) 1991-07-29
JP2927533B2 (en) 1999-07-28

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