EP0428430B2 - 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
EP0428430B2
EP0428430B2 EP90403089A EP90403089A EP0428430B2 EP 0428430 B2 EP0428430 B2 EP 0428430B2 EP 90403089 A EP90403089 A EP 90403089A EP 90403089 A EP90403089 A EP 90403089A EP 0428430 B2 EP0428430 B2 EP 0428430B2
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EP
European Patent Office
Prior art keywords
covering
fibres
wire
central thread
thread
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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.)
Expired - Lifetime
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EP90403089A
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German (de)
French (fr)
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EP0428430B1 (en
EP0428430A1 (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
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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 a method of manufacturing a reinforcing thread for interlining. or technical textiles.
  • Such threads are intended to be woven or to be inserted in a knit. They are frequently used in articles intended for canvas covering tailors or breastplates. They bring to the products in which they are incorporated their nervousness and their resistance.
  • the object of the present invention is a method of manufacturing a reinforcing wire composite, partially synthetic whose structure prevents slipping in the fabric texture or the knit in which it is incorporated, allowing avoid sizing of all textiles or knitting to which it is incorporated.
  • second coating fibers are housed in the rough edges formed by the first coating fibers, for example by spinning friction.
  • Reinforcement thread for interlining or technical textiles 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 reinforcements are incorporated into the mesh system without participate in the training of these. According to the destination of textile, they can be introduced in parallel to the mesh columns or on the contrary perpendicularly to these.
  • These reinforcing wires generally have a diameter greater than 10 hundredths of a millimeter.
  • the reinforcing thread comprises a synthetic core thread or artificial 2 and the first coating fibers 3 deposited around the synthetic core thread 2.
  • the first coating fibers 3 are bonded to the wire core 2 using an adhesive substance 4.
  • the wire core 2 is generally monofilament. However, it can also be multifilament.
  • the core wire 2 is made of a material synthetic or artificial such as polyamide, polyester or viscose.
  • the adhesive substance 4 ensuring the bonding of first coating fibers 3 on the core wire 2 contains a thermosetting polymer. he can also, additionally or alternatively, include a crosslinkable polymer. Bonding can also be obtained using hot melt polymer or fibers associated hot melt in mixture with the first coating fibers 3 or incorporated in parallel over the core 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 thread 2,3.
  • These two wires 2,3 associated by bonding are integral one of the other. The relief of the wire thus produced allows its attachment in the context of the fabric to which it is incorporated and therefore prevents it from sliding.
  • the coating wire 3 can be made from fibers short or from filaments.
  • the first coating fibers 3 can also be individualized and be associated with the soul thread according to the friction spinning process. These 3 fibers are then glued to the core wire 2 ( Figures 2 and 4). Of this also the first coating fibers give a relief to the wire which allows its attachment in the texture of the fabric in which it is incorporated and prevents it from sliding.
  • individualized is used here to describe the condition of the fibers used in the spinning process friction as opposed to fibers that have been subjected to a twist and constitute a wire or 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 (figure 3).
  • the first coating fibers 3 themselves constitute a wire wound in a helix around of the core 2
  • the second coating wire 5 forms preferably a propeller of the same pitch. It can be multifilament.
  • the first coating fibers 3 constitute a wire ( Figures 1, 3 and 5).
  • a coating wire 3 is first wound in a spiral around a core wire 2.
  • the equipment allowing the implementation of this manufacturing phase is shown in the 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 covering pin 8 carries out the winding of the wrapping wire 3 in a spiral around the core wire 2.
  • the wire 2, 3, thus obtained, is wound on the reel 9.
  • the core wire 2-coating wire 3 assembly is impregnated of an adhesive substance 4 then expressed and dried this which allows the relative joining of these two wires ( Figure 6B).
  • the wire 2, 3 supplied from the coil 9 passes through a filled impregnation tank 10 of an adhesive substance 11 comprising a polymer thermosetting and / or a thermosetting polymer.
  • the wire 2, 3 is then expressed between the rollers 12, 13 and is then dried during the crossing from the oven 14 and then wound on the coil 15.
  • drying used here includes all likely physical or chemical phenomena to occur after bonding to produce adhesion of the coating wire 3 on the core wire 2. In particular, when passing through this oven, the adhesive polymer can crosslink.
  • the adhesive substance 4 may include a resin thermosetting, for example acrylic, based on melanin, formalin, polyester, etc ... or polymers crosslinkable by UV radiation.
  • a resin thermosetting for example acrylic, based on melanin, formalin, polyester, etc ... or polymers crosslinkable by UV radiation.
  • the first coating fibers 3 can be individualized and be associated with the core thread according to the method friction spinning. These fibers 3 are then bonded on the core 2.
  • the wrapping phase of the first coating fibers described above ( Figure 3A) is replaced by a coating phase of the first fibers 3 by friction spinning ( Figure 3C). Others process phases are then unchanged.
  • the core wire 2 is a large titration wire, for example 300 decitex.
  • the first coating fibers 3 constitute a thread of a titration included 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 has preferably of the order of 2 to 5 turns per millimeter.
  • the synthetic reinforcing yarn 1 thus obtained does not not slip in relation to the textile texture at which they are incorporated, their touch is mainly determined by the nature of the coating fibers 5 and can therefore be freely controlled. They can advantageously replace the horsehair threads covered.
  • the core threads can have great rigidity; the length of the coating wire is greater than that soul thread.
  • 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 un procédé de fabricaton d'un fil de renfort pour entoilage ou textile technique.The invention relates to a method of manufacturing a reinforcing thread for interlining. or technical textiles.

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 in a knit. They are frequently used in articles intended for canvas covering tailors 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 cherché 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 we have long used to make these reinforcing threads from animal hair threads. We has already sought to replace these natural threads with synthetic monofilament yarns which have a nervousness and resistance close to that of horsehair natural. However, the use of these synthetic fibers remains limited because the threads thus obtained tend to slide inside the fabric texture.

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, we proposed to glue, for example with acrylic resins, the fabric after weaving or knitting operations. This method avoids the slips mentioned higher but stiffens the textile since, at the following gluing, the threads are all linked to each other others at their point of contact This method only allows therefore not obtaining textiles which, while having the nervousness and resistance sought, keep 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.We also considered twisting together two yarns of the same length, for example a monofilament yarn and a hairy thread. The rough surface of the wire hairy ensures the anti-slip of the composite wire (FR-A-2 270 355). Such a method cannot be used with wires having great rigidity which would remain rectilinear during a twisting attempt.

Le but de la présente invention est un procédé de fabrication d'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 object of the present invention is a method of manufacturing a reinforcing wire composite, partially synthetic whose structure prevents slipping in the fabric texture or the knit in which it is incorporated, allowing avoid sizing of all textiles or knitting to which it is incorporated.

Pour résoudre ce problème, il est proposé, selon l'invention, un procédé de fabrication d'un fil de renfort tel que défini dans les revendications 1 et 2.To solve this problem, it is proposed, according to the invention, a method of manufacturing a reinforcing wire as defined in claims 1 and 2.

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 method manufacturing, second coating fibers are housed in the rough edges formed by the first coating fibers, for example by spinning friction.

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.
  • FIGS. 2A and 2B show the reinforcing wire of the invention according to a second embodiment, respectively seen from the front and seen in section.
  • Figure 3 shows the reinforcing wire of the invention in a third embodiment.
  • FIGS. 4A and 4B represent the reinforcing wire of the invention according to a fourth embodiment, respectively viewed from the front and seen in section.
  • FIGS. 5A and 5B represent the reinforcing wire of the invention according to a fifth embodiment, respectively viewed from the front and seen in section.
  • FIG. 6A represents the covering of the coating wire around the core wire.
  • FIG. 6B represents the gluing of the wrapped thread.
  • FIG. 6C represents the association of the coating fibers on the wire by friction spinning.
  • FIG. 6D represents 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.Reinforcement thread for interlining or technical textiles 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 reinforcements are incorporated into the mesh system without participate in the training of these. According to the destination of textile, they can be introduced in parallel to the mesh columns or on the contrary perpendicularly to these.

Ces fils de renfort ont un diamètre généralement supérieur à 10 centièmes de millimètre.These reinforcing wires generally have a diameter 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 thread comprises a synthetic core thread or artificial 2 and the first coating fibers 3 deposited around the synthetic core thread 2. The first coating fibers 3 are bonded to the wire core 2 using an adhesive substance 4. The wire core 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 material synthetic or artificial 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 first coating fibers 3 on the core wire 2 contains a thermosetting polymer. he can also, additionally or alternatively, include a crosslinkable polymer. Bonding can also be obtained using hot melt polymer or fibers associated hot melt in mixture with the first coating fibers 3 or incorporated in parallel over the core 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 thread 2,3. These two wires 2,3 associated by bonding are integral one of the other. The relief of the wire thus produced allows its attachment in the context of the fabric to which it is incorporated and therefore prevents it from sliding. The coating wire 3 can be made from fibers short 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 soul thread according to the friction spinning process. These 3 fibers are then glued to the core wire 2 (Figures 2 and 4). Of this also the first coating fibers give a relief to the wire which allows its attachment in the texture of the fabric in which it is incorporated and prevents it from sliding.

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 spinning process friction as opposed to fibers that have been subjected to a twist and constitute a wire or 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 interesting to improve the touching wire provided with the first coating fibers 2, 3 by combining second coating fibers 5 housed in the rough edges 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 (figure 3). In the event that the first coating fibers 3 themselves constitute a wire wound in a helix around of the core 2, the second coating wire 5 forms preferably a propeller 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 5 individualized coating fibers which are intercalated between the roughness formed by the first fibers coating 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 (Figures 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 reinforcement wire 1 for interlining or technical textile, a coating wire 3 is first wound in a spiral around a core wire 2. The equipment allowing the implementation of this manufacturing phase is shown in the 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 covering pin 8 carries out the winding of the wrapping wire 3 in a spiral around the core wire 2. The wire 2, 3, thus obtained, is wound on the reel 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 of an adhesive substance 4 then expressed and dried this which allows the relative joining of these two wires (Figure 6B). To this end, the wire 2, 3 supplied from the coil 9 passes through a filled impregnation tank 10 of an adhesive substance 11 comprising a polymer thermosetting and / or a thermosetting polymer. The wire 2, 3 is then expressed between the rollers 12, 13 and is then dried during the crossing from 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 includes all likely physical or chemical phenomena to occur after bonding to produce adhesion of the coating wire 3 on 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.
  • 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 the 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 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 include a resin thermosetting, for example acrylic, based on melanin, formalin, polyester, etc ... or 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 method friction spinning. These fibers 3 are then bonded on the core 2. The wrapping phase of the first coating fibers described above (Figure 3A) is replaced by a coating phase of the first fibers 3 by friction spinning (Figure 3C). Others process phases 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 :

  • 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 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 24. Il est également possible d'introduire des fibres 23 parallèlement à l'âme, avant le dépôt des fibres d'enrobage 5, pour obtenir un toucher de qualité supérieure.
  • 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
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:
  • The second coating can be carried out with staple fibers according to the method in itself known of friction spinning (Figure 6C). The reel 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 by a wick of fibers 20, the fibers 20 are associated with the core thread-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 24 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 (FIG. 6D). The assembly of core yarn-first coating fibers 2.3 bonded is then used to feed a covering spindle 22 together with a hollow coil 23 'of the covering wire 3. After wrapping, the yarn obtained is wound on a coil 24

Le fil d'âme 2 est un fil de gros titrage, par exemple de 300 décitex. Les premières fibres d'enrobage 3 constituent 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 300 decitex. The first coating fibers 3 constitute a thread of a titration included 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 has preferably of the order of 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 not slip in relation to the textile texture at which they are incorporated, their touch is mainly determined by the nature of the coating fibers 5 and can therefore be freely controlled. They can advantageously replace the horsehair threads covered.

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 soul thread. The coating wire can be smooth.

Claims (12)

  1. A method of manufacturing a reinforcement yarn (1) for stiffening fabric or technical textiles, characterised in that:
    first covering fibres (3) are spiral-wound around a continuous mono- or multifilament central thread (2), the first covering fibres (3) constituting a yarn having a numbering between 100 and 150 decitex, the first covering fibres forming roughnesses around the reinforcing yarn (1);
    the first covering fibres (3) are glued on the central thread (2) by impregnating the assembly consisting of central thread (2) and covering fibres (3) with an adhesive substance (4), and then the said assembly is pressed out and dried.
  2. A method of manufacturing a reinforcement yarn (1) for stiffening fabric or technical textiles, characterised in that:
    first covering fibres (3) are spiral-wound around a continuous mono- or multifilament central thread (2), the first covering fibres (3) being individualised and forming roughnesses around the reinforcing yarn (1);
    the first covering fibres (3) are glued on the central thread (2) by impregnating the assembly consisting of central thread (2) and covering fibres (3) with an adhesive substance (4), and then the said assembly is pressed out and dried.
  3. A method according to either one of Claims 1 to 2, characterised in that the central thread (2) is made of polyamide.
  4. A method according to either one of Claims 1 to 2, characterised in that the central thread (2) is made of polyester.
  5. A method according to either one of Claims 1 to 2, characterised in that the central thread (2) is made of viscose.
  6. A method according to any one of Claims 1 to 5, characterised in that the adhesive substance (4) gluing the first covering fibres (3) to the central thread (2) includes a heat-fusible polymer.
  7. A method according to any one of Claims 1 to 5, characterised in that the adhesive substance (4) gluing the first covering fibres (3) to the central thread (2) includes a thermosetting polymer.
  8. A method according to any one of Claims 1 to 5, characterised in that the adhesive substance (4) gluing the first covering fibres (3) to the central thread (2) includes a crosslinking polymer.
  9. A method according to any one of Claims 1 to 8, characterised in that second covering fibres (5) are housed in the roughnesses formed by the first covering fibres (3), and are spiral-wound around the central thread (2).
  10. A method according to Claim 9, characterised in that the second covering fibres (5) form a second covering thread, this second covering thread being multifilament.
  11. A method according to Claim 9, characterised in that the second covering fibres (5) are discontinuous.
  12. A method according to Claim 9, characterised in that the second covering fibres (5) are associated with the assembly consisting of central thread (2) and first covering fibres (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
FR8914975 1989-11-15
FR8914975A FR2654442B1 (en) 1989-11-15 1989-11-15 REINFORCEMENT THREAD FOR LINING OR TECHNICAL TEXTILE AND ITS MANUFACTURING METHOD.

Publications (3)

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

Family

ID=9387416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403089A Expired - Lifetime EP0428430B2 (en) 1989-11-15 1990-10-31 Reinforcing yarn for stiffening fabric or technical textile applications and process for its manufacture

Country Status (9)

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US (1) US5414984A (en)
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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US5749212A (en) * 1995-06-06 1998-05-12 Dixy Yarns, Inc. Elastomeric core/staple fiber wrap yarn
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
FR2812667B1 (en) 2000-08-04 2003-11-28 Picardie Lainiere METHOD FOR MANUFACTURING A REINFORCEMENT THREAD
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
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
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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US1766776A (en) * 1928-03-22 1930-06-24 Everlastik Inc Covered elastic strand
US2076273A (en) * 1935-09-30 1937-04-06 Harris Textile Machinery Corp Elastic thread
US2475083A (en) * 1947-07-03 1949-07-05 Archibald H Davis Composite textile strand and fabric
US3382662A (en) * 1965-07-15 1968-05-14 Wyomissing Corp Covered elastomeric yarns
US3380244A (en) * 1966-02-01 1968-04-30 Du Pont Core-spun elastic yarn product and process
US3776293A (en) * 1967-08-29 1973-12-04 Owens Corning Fiberglass Corp Reinforcement for tires
JPS5028536B1 (en) * 1970-05-18 1975-09-16
FR2270355A1 (en) * 1974-05-10 1975-12-05 Froidure Joseph Composite bristle/staple fibre yarn - for stiffening a woven fabric e.g. a curtain tape
JPS54131010A (en) * 1978-03-28 1979-10-11 Shikishima Canvas Kk Dryer canvas for paper making
FR2446336A1 (en) * 1979-01-10 1980-08-08 Payen & Cie L NOVEL TYPE OF GUIP TEXTILE YARN AND METHOD FOR OBTAINING SAME
JPS5782535A (en) * 1980-11-05 1982-05-24 Teijin Ltd Special bulky yarn and method
US4454709A (en) * 1982-03-12 1984-06-19 General Electric Company Method of forming concentric cable layer and article formed
EP0107887B2 (en) * 1982-11-02 1994-08-17 Akzo Nobel N.V. Adhesive-coated multifilament yarn of an aromatic polyamide and a method for the manufacture thereof
EP0339965B1 (en) * 1988-04-28 1992-09-09 Toyo Denshoku Kabushiki Kaisha Flocked yarn and method for manufacturing it
US4958485A (en) * 1988-12-22 1990-09-25 Springs Industries, Inc. Corespun yarn for fire resistant safety apparel

Also Published As

Publication number Publication date
FR2654442A1 (en) 1991-05-17
ATE99743T1 (en) 1994-01-15
ES2047885T3 (en) 1994-03-01
CA2029775C (en) 1999-04-13
JPH03174044A (en) 1991-07-29
JP2927533B2 (en) 1999-07-28
FR2654442B1 (en) 1992-02-07
EP0428430B1 (en) 1994-01-05
DE69005796T3 (en) 2000-04-27
US5414984A (en) 1995-05-16
CA2029775A1 (en) 1991-05-16
ES2047885T5 (en) 2000-02-16
EP0428430A1 (en) 1991-05-22
DE69005796D1 (en) 1994-02-17
GR3032050T3 (en) 2000-03-31
DE69005796T2 (en) 1994-06-09

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