EP0118373B1 - Open-work textile structure and its method of manufacture - Google Patents
Open-work textile structure and its method of manufacture Download PDFInfo
- Publication number
- EP0118373B1 EP0118373B1 EP84420009A EP84420009A EP0118373B1 EP 0118373 B1 EP0118373 B1 EP 0118373B1 EP 84420009 A EP84420009 A EP 84420009A EP 84420009 A EP84420009 A EP 84420009A EP 0118373 B1 EP0118373 B1 EP 0118373B1
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- European Patent Office
- Prior art keywords
- work
- open
- textile structure
- edges
- yarns
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Classifications
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- 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
- D04B21/10—Open-work fabrics
- D04B21/12—Open-work fabrics characterised by thread material
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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
- D02G3/36—Cored or coated yarns or threads
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- 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
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
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- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/04—Heat-responsive characteristics
- D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting
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- 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
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- 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
- D10B2505/20—Industrial for civil engineering, e.g. geotextiles
- D10B2505/204—Geotextiles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/102—Woven scrim
- Y10T442/103—Including a multifilament fiber precoated with other than free metal or alloy prior to weaving
Definitions
- the present invention relates to a new type of openwork textile articles, produced on knitted looms; it also relates to a method for obtaining such an openwork article.
- Threaded knitted articles having a net-like structure are well known to technicians and have been the subject of numerous publications such as those which appeared in the journal "Knitted Outerwear Times" of July 1968, pp. 37 to 40.
- the openwork structure according to the invention has the characteristics of having a width significantly greater than the knitting width, which can reach two to three times the latter, while having the above properties.
- the invention also relates to a method for obtaining such an openwork textile structure.
- the openwork textile structure according to the invention is of the type constituted by a knitted fabric knitted made from threads comprising a sheath of thermoplastic material, said sheath being partially melted and binding the threads together in the zones where they are in mutual contact and it is characterized by the fact that said knitted fabric is based on a weave comprising at least three bars and that the days are in the form of regular polygons, at least some of the sides of which are biased relative to the length of the structure and that the stitches of said knit trap a screened yarn which extends in a substantially straight line parallel to the sides of the days formed.
- the days of the structure have a hexagonal shape, which makes it possible to obtain practically identical resistances as well in the direction of the length, in the transverse direction and in the bias direction. .
- the days have a diamond shape., Which gives perfectly balanced properties in the bias direction.
- the wires constituting the structure according to the invention can be either identical for all the guide bars, or possibly based on different materials, and this as well with regard to the core as the sheath.
- the invention also relates to a method for obtaining an openwork textile structure as defined above.
- the loom is adjusted so as to have a decontextured structure, the stitches being loose, this being obtained, for example; by increasing the flow and / or slaughter to a higher value than that used for the production of knitted nets offered to date.
- a 12 gauge Rachel loom that is to say having twelve needles
- the food wires being coated wires comprising a core based on high tenacity polyester, of 1100 dtex, coated with PVC at a rate of 30% of polyester and 70% of PVC by weight.
- This example illustrated in fig. 1 illustrates an openwork textile structure according to the invention obtained from a three-bar knit weave.
- the front bars (I and II) are threaded at disposal, a full, a vacuum, and work so as to form a net whose days are likely to be deformed if the knitting is pulled.
- Such a type of openwork structure is not industrially usable taking into account this possibility of deformation.
- This passage on the ream allows to give the knitting days a hexagonal, regular configuration.
- the sides formed by the parts corresponding to zone A of FIG. 1 are arranged in the lengthwise direction of the fabric, while the sides corresponding to the zones referenced B and C are oriented at an angle relative to the length of the article.
- the wires of the bar (III) which work in the weft on a needle are brought in a substantially rectilinear manner relative to the sides of the formed day.
- This example illustrated in fig. 2 is comparable to the previous example, but differs from it in that the weave ratio is 32 rows instead of 10.
- This example illustrated in fig. 3 shows an openwork textile structure according to the invention produced in a four-bar weave.
- the bars (I) and (II) form the openwork mesh structure of the knitted fabric while the bars (III) and (IV) are threaded at disposal and work in a woven weave.
- this openwork textile structure appears, after widening and heat treatment, with diamond-shaped days, the screened threads extending substantially rectilinearly inside the knitted fabric.
- This example illustrated in fig. 4 is a variant making it possible to obtain an openwork textile structure having diamond-shaped days.
- the bars (I) and (II) form the mesh structure while the bars (III), (IV) (V) and (VI) work in a screened armor. After widening the knit and heat treatment, a perfectly stable and balanced article is obtained.
- the articles obtained in accordance with the invention can find numerous applications and be used as such, for example as protective nets, windbreak nets, fall arresters, geotextile articles.
- thermoplastic sheath makes it possible to obtain very good protection against bad weather, ultraviolet radiation, or even coloring effects.
- the material used is son of which only the outer periphery is based on a thermoplastic material
- the heat treatment to which the article is subjected is such that there is only a partial melting of the thermoplastic sheath, and this in order to keep it a certain flexibility, it could be envisaged to carry out a treatment much more thermal depending on the desired stiffness.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Knitting Of Fabric (AREA)
- Treatment Of Fiber Materials (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Abstract
Description
La présente invention concerne un nouveau type d'articles textiles ajourés, réalisés sur des métiers à tricoter à mailles jetées; elle concerne également un procédé permettant l'obtention d'un tel article ajouré.The present invention relates to a new type of openwork textile articles, produced on knitted looms; it also relates to a method for obtaining such an openwork article.
Les articles tricotés à mailles jetées présentant une structure similaire à un filet sont bien connus des techniciens et ont fait l'objet de nombreuses publications telles que celles parues dans la revue «Knitted Outerwear Times» de juillet 1968, pp. 37 à 40.Threaded knitted articles having a net-like structure are well known to technicians and have been the subject of numerous publications such as those which appeared in the journal "Knitted Outerwear Times" of July 1968, pp. 37 to 40.
Par rapport aux filets réalisés de manière conventionnelle par nouage, de tels articles présentent comme avantage de pouvoir être produits à grande vitesse, ce qui en réduit notablement les coûts.Compared to threads conventionally produced by knotting, such articles have the advantage of being able to be produced at high speed, which considerably reduces their costs.
Cependant, de tels filets tricotés ont comme inconvénient de ne pouvoir être produits que dans des largeurs relativement faibles, fonction du métier à tricoter utilisé. De plus, sauf à utiliser'des armures complexes et des métiers comportant un très grand nombre de barres à passettes, ils ont une tendance à se déformer facilement et à ne pas présenter une résistance homogène dans toutes les directions. Enfin, il est bien connu que certains fils tels que les fils de verre, les fils de carbone..., qui présentent une très grande résistance à la traction et sont donc particulièrement intéressants pour certaines applications, ne peuvent pas être utilisés facilement sur les métiers à tricoter, compte tenu de leur fragilité à la flexion. Or, la formation de mailles implique la création de telles contraintes.However, such knitted nets have the drawback of being able to be produced only in relatively small widths, depending on the knitting loom used. In addition, except when using complex armor and looms with a very large number of guide bars, they have a tendency to easily deform and not to exhibit homogeneous resistance in all directions. Finally, it is well known that certain threads such as glass threads, carbon threads, etc., which have a very high tensile strength and are therefore particularly advantageous for certain applications, cannot be used easily on knitting looms, given their fragile flexion. However, the formation of meshes implies the creation of such constraints.
Il a également été proposé dans le document FR-A-2250497 de réaliser des articles tricotés, plus particulièrement du type à mailles jetées à partir de fils recouverts d'une matière thermoplastique. Après tricotage, l'étoffe est soumise à un traitement thermique afin de lui donner une meilleure tenue et d'assurer la cohésion de l'ensemble pour éviter le démaillage. Ces articles utilisés pour la fabrication de rideaux, c'est-à-dire pour des applications dans lesquelles les contraintes mécaniques sont peu élevées et/ou s'exercent selon un sens préférentiel de l'article (longitudinalement ou transversalement), ne peuvent pas être utilisés avec succès dans d'autres domaines dans lesquels il est nécessaire d'avoir des caractéristiques mécaniques équilibrées tant en longueur qu'en largeur, voire même en biais comme c'est le cas pour les filets de protection, de sécurité, les filets brise-vent ou pare-chutes, les renforts de stratifiés...It has also been proposed in document FR-A-2250497 to produce knitted articles, more particularly of the knitted type thrown from threads covered with a thermoplastic material. After knitting, the fabric is subjected to a heat treatment in order to give it a better hold and to ensure the cohesion of the assembly to avoid unraveling. These articles used for the manufacture of curtains, that is to say for applications in which the mechanical stresses are low and / or are exerted in a preferential direction of the article (longitudinally or transversely), cannot be successfully used in other fields in which it is necessary to have balanced mechanical characteristics both in length and in width, or even at an angle as is the case for protective, safety nets, nets windbreaks or fall arresters, laminate reinforcements ...
De plus, si l'on veut obtenir des articles non déformables, cela implique la formation d'une structure bloquée sur le métier même et donc limite la largeur de l'article à la largeur du métier.In addition, if one wants to obtain non-deformable articles, this implies the formation of a structure blocked on the loom itself and therefore limits the width of the article to the width of the loom.
Or, on a trouvé, et c'est ce qui fait l'objet de la présente invention, un nouveau type de structure textile ajourée constitué par un tricot à mailles jetées qui, non seulement, présente une grande stabilité mais possède également des caractéristiques mécaniques équilibrées dans pratiquement toutes les directions (sens long, travers et biais).However, we have found, and this is what is the subject of the present invention, a new type of openwork textile structure constituted by a knitted knitted fabric which, not only has great stability but also has mechanical characteristics balanced in almost all directions (long, cross and bias).
Par ailleurs, la structure ajourée conforme à l'invention présente comme caractéristiques d'avoir une largeur nettement supérieure à la largeur de tricotage, pouvant atteindre deux à trois fois cette dernière, et ce tout en présentant les propriétés précitées.Furthermore, the openwork structure according to the invention has the characteristics of having a width significantly greater than the knitting width, which can reach two to three times the latter, while having the above properties.
L'invention concerne également un procédé pour l'obtention d'une telle structure textile ajourée.The invention also relates to a method for obtaining such an openwork textile structure.
D'une manière générale, la structure textile ajourée selon l'invention est du type constitué par un tricot à mailles jetées réalisé à partir de fils comportant une gaine de matière thermoplastique, ladite gaine étant partiellement fondue et liant les fils entre eux dans les zones où ils sont en contact mutuel et elle se caractérise par le fait que ledit tricot est à base d'une armure comportant au moins trois barres et que les jours se présentent sous forme de polygones réguliers, dont au moins certains des côtés sont orientés en biais par rapport à la longueur de la structure et que les maïlles dudit tricot emprisonnent un fil tramé qui s'étend de manière sensiblement rectiligne parallèlement aux côtés des jours formés.In general, the openwork textile structure according to the invention is of the type constituted by a knitted fabric knitted made from threads comprising a sheath of thermoplastic material, said sheath being partially melted and binding the threads together in the zones where they are in mutual contact and it is characterized by the fact that said knitted fabric is based on a weave comprising at least three bars and that the days are in the form of regular polygons, at least some of the sides of which are biased relative to the length of the structure and that the stitches of said knit trap a screened yarn which extends in a substantially straight line parallel to the sides of the days formed.
Diverses contextures peuvent être envisagées sans sortir du cadre de l'invention, et ce en fonction des caractéristiques mécaniques finales que l'on désire obtenir.Various contexts can be envisaged without departing from the scope of the invention, and this as a function of the final mechanical characteristics which it is desired to obtain.
Ainsi, selon une forme de réalisation de l'invention, les jours de la structure ont une forme hexagonale, ce qui permet d'obtenir des résistances pratiquement identiques ausi bien dans le sens de Fa longueur, dans le sens transversal et dans le sens biais.Thus, according to an embodiment of the invention, the days of the structure have a hexagonal shape, which makes it possible to obtain practically identical resistances as well in the direction of the length, in the transverse direction and in the bias direction. .
Selon une variante, les jours ont une forme de losange., ce qui donne des propriétés parfaitement équilibrées dans le sens biais.According to a variant, the days have a diamond shape., Which gives perfectly balanced properties in the bias direction.
Comme fils permettant d'obtenir un matériau conforme à-l'invention, on utilisera dssfils enduits conventionnels dont l'âme peut âtre à base detou- te matière textile. Cependant, l'invention est particulièrement adaptée pour être mise en œuvre avec des fils à haut module que l'on peut utiliser pour des applications industrielles, tels que des fils de verre, les fils chimiques à grande résistance tels que ceux commercialisés sous la marque Kevlar, et ce même si ces fils présentent une fragilité à la flexion, car il a été constaté que grâce au procédé de mise en œuvre pour obtenir des articles conformes à l'invention de tels fils pouvaient être tricotés sans difficulté, alors que cela n'était pas possible jusqu'à ce jour.As yarns which make it possible to obtain a material in accordance with the invention, use will be made of conventional coated threads, the core of which may be based on any textile material. However, the invention is particularly suitable for being implemented with high modulus wires which can be used for industrial applications, such as glass wires, high resistance chemical wires such as those sold under the brand. Kevlar, even if these threads have a brittleness in bending, because it has been found that thanks to the implementation process for obtaining articles in accordance with the invention, such threads can be knitted without difficulty, whereas this does not was not possible until this day.
Bien entendu, en fonction des résultats recherchés, il est possible, sans sortir du cadre de l'invention, d'utiliser différents types d'armure à la condition que ces armures permettent d'obtenir une structure ajourée pouvant être déformée après tricotage; de même, les fils constituant la structure selon l'invention peuvent être soit identiques pour toutes les barres à passettes, soit éventuellement à base de matières différentes, et ce aussi bien en ce qui concerne l'âme que la gaine.Of course, depending on the desired results, it is possible, without departing from the scope of the invention, to use different types of weave provided that these weaves make it possible to obtain an openwork structure which can be deformed after knitting; similarly, the wires constituting the structure according to the invention can be either identical for all the guide bars, or possibly based on different materials, and this as well with regard to the core as the sheath.
Comme dit précédemment, l'invention concerne également un procédé pour l'obtention d'une structure textile ajourée telle que définie précédemment.As said previously, the invention also relates to a method for obtaining an openwork textile structure as defined above.
D'une manière générale, le procédé selon l'invention consiste à réaliser un tricot à mailles jetées, sur un métier chaîne, Rachel ou similaire, à partir de fils comportant une gaine de matière thermoplastique puis à traiter thermiquement la structure textile ajourée obtenue, de manière à fondre partiellement la matière thermoplastique de gainage afin de lier les fils entre eux dans les zones où ils sonten contact mutuel, et le procédé selon l'invention se caractérisant par le fait:
- - que le tricot ajouré réalisé est à base d'une armure comportant au moins trois barres, au moins deux de ces barres étant enfilées à disposition et travaillant de manière à former un filet dont les jours sont déformables et sont de forme polygonale et sont susceptibles d'être déformés transversalement, la troisième barre distribuant un filettramé;
- - qu'après réalisation du tricot, on l'étire transversalement lors de l'opération de traitement thermique de manière à orienter en biais par rapport à la longueur dudit tricot au moins une partie des jours qu'il comporte et à amener les fils tramés dans une position sensiblement rectiligne parallèlement aux côtés des jours formés.
- - that the openwork knitting produced is based on a weave comprising at least three bars, at least two of these bars being threaded at disposal and working so as to form a net whose days are deformable and are of polygonal shape and are susceptible to be deformed transversely, the third bar distributing a ribbed net;
- - that after knitting, it is stretched transversely during the heat treatment operation so as to orient at an angle relative to the length of said knitting at least part of the days it comprises and to bring the wefted threads in a substantially straight position parallel to the sides of the days formed.
De préférence, lors de la réalisation du tricot, le métier est réglé de manière à avoir une structure décontexturée, les mailles étant lâches, cela étant obtenu, par exemple; en augmentant le débit et/ou l'abattage à une valeur plus élevée que celle utilisée pour la réalisation de filets tricotés proposés à ce jour.Preferably, when knitting, the loom is adjusted so as to have a decontextured structure, the stitches being loose, this being obtained, for example; by increasing the flow and / or slaughter to a higher value than that used for the production of knitted nets offered to date.
Grâce à un tel procédé, il est donc possible d'obtenir, sur un métier de largeur déterminée, des articles ayant une largeur beaucoup plus élevée, de l'ordre de deux à trois fois la largeur de tricotage, les jours de l'article terminé étant, de manière inattendue, parfaitement stabilisés alors que le tricot non traité est de par sa structure éminemment déformable, ledit article présentant par ailleurs des caractéristiques mécaniques équilibrées dans toutes les directions (longueur, largeur, biais) et donc une bonne isotropie.Thanks to such a method, it is therefore possible to obtain, on a loom of given width, articles having a much larger width, of the order of two to three times the knitting width, on the days of the article. finished being, unexpectedly, perfectly stabilized while the untreated knit is by its eminently deformable structure, said article also having mechanical characteristics balanced in all directions (length, width, bias) and therefore good isotropy.
L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce aux exemples de réalisation donnés ci-après à titre indicatif mais non limitatif et qui sont illustrés par les schémas annexés, schémas qui sont des représentations conventionnelles d'articles tricotés à mailles jetées et qui, pour un homme du métier, permettent, sans difficulté particulière, d'en réaliser la reproduction.The invention and the advantages which it brings will however be better understood thanks to the embodiments given below by way of indication but not limitation and which are illustrated by the attached diagrams, diagrams which are conventional representations of knitted articles jetties and which, for a person skilled in the art, allow, without particular difficulty, to reproduce them.
Pour les quatre exemples de réalisation qui seront décrits plus en détail ci-après et qui tous concernent une structure textile ajourée conforme à l'invention, on utilise comme métier un métier Rachel de jauge 12 (c'est-à-dire ayant douze aiguilles dans 25,4 mm), les fils alimentaires étant des fils enduits comportant une âme à base de polyester à haute ténacité, de 1100 dtex, enrobée de PVC à raison de 30% de polyester et 70% de PVC en poids.For the four exemplary embodiments which will be described in more detail below and which all relate to an openwork textile structure according to the invention, a 12 gauge Rachel loom (that is to say having twelve needles) is used as a loom. in 25.4 mm), the food wires being coated wires comprising a core based on high tenacity polyester, of 1100 dtex, coated with PVC at a rate of 30% of polyester and 70% of PVC by weight.
Cet exemple illustré par la fig. 1 illustre une structure textile ajourée conforme à l'invention obtenue à partir d'un tricot à armure trois barres.This example illustrated in fig. 1 illustrates an openwork textile structure according to the invention obtained from a three-bar knit weave.
Les barres avant (I et II) sont enfilées à disposition, un plein, un vide, et travaillent de manière à former un filet dont les jours sont susceptibles d'être déformés si l'on tire sur le tricot. Par lui-même, un tel type de structure ajourée n'est pas industriellement utilisable compte tenu de cette possibilité de déformation.The front bars (I and II) are threaded at disposal, a full, a vacuum, and work so as to form a net whose days are likely to be deformed if the knitting is pulled. By itself, such a type of openwork structure is not industrially usable taking into account this possibility of deformation.
Dans le cas présent, les fils des barres (1) et (II) travaillent selon les armures suivantes:
- - barre (I):
- 4.6/4.2/4.6/4.2/4.6/6.4/6.8/6.4/6.8/6.4
- - barre (II):
- 4.2/4.6/4.2/4.6/4.2/2.4/2.0/2.4/2.0/2.4
- - bar (I):
- 4.6 / 4.2 / 4.6 / 4.2 / 4.6 / 6.4 / 6.8 / 6.4 / 6.8 / 6.4
- - bar (II):
- 4.2 / 4.6 / 4.2 / 4.6 / 4.2 / 2.4 / 2.0 / 2.4 / 2.0 / 2.4
En ce qui concerne la barre (III), elle est enfilée pleine et travaille selon une armure trame 2.2/0.0. Le tricot obtenu est ensuite traité sur une trame où il est élargi d'environ 2,5 fois et soumis à une température d'environ 135°C pendant une minute, permettant de provoquer une fusion partielle de la gaine de PVC qui provoque la liaison des fils entre eux à leur point de contact.Regarding the bar (III), it is threaded full and works in a weft weave 2.2 / 0.0. The knitted fabric obtained is then treated on a weft where it is widened by approximately 2.5 times and subjected to a temperature of approximately 135 ° C for one minute, making it possible to cause a partial melting of the PVC sheath which causes the bond. wires between them at their point of contact.
Ce passage sur rame permet de donner aux jours du tricot une configuration hexagonale, régulière. Les côtés constitués par les parties correspondant à la zone A de la fig. 1 sont disposés dans le sens de la longueur du tissu, alors que les côtés correspondant aux zones référencées B et C sont orientés en biais par rapport à la longueur de l'article. Par ailleurs, les fils de la barre (III) qui travaillent en trame sur une aiguille sont amenés de manière sensiblement rectiligne par rapport aux côtés du jour formé.This passage on the ream allows to give the knitting days a hexagonal, regular configuration. The sides formed by the parts corresponding to zone A of FIG. 1 are arranged in the lengthwise direction of the fabric, while the sides corresponding to the zones referenced B and C are oriented at an angle relative to the length of the article. Furthermore, the wires of the bar (III) which work in the weft on a needle are brought in a substantially rectilinear manner relative to the sides of the formed day.
De cette manière, on obtient un article qui présente une excellente stabilité alors que le tricot de départ est, par lui-même, fortement déformable, cet article présentant des caractéristiques mécaniques équilibrées aussi bien en long qu'en large et qu'en travers.In this way, an article is obtained which has excellent stability while the starting knit is, by itself, highly deformable, this article having balanced mechanical characteristics both in length, in width and across.
Cet exemple illustré par la fig. 2 est comparable à l'exemple précédent, mais s'en différencie en ce que le rapport d'armure est de 32 rangées au lieu de 10. On obtient également une structure textile ajourée, les jours ayant une forme hexagonale, les côtés s'étendant à la fois dans le sens long et en biais, et dans laquelle les fils de la barre (III) qui forment les trames sont sensiblement alignés par rapport aux côtés desdits jours.This example illustrated in fig. 2 is comparable to the previous example, but differs from it in that the weave ratio is 32 rows instead of 10. We also obtain an openwork textile structure, on days having a hexagonal shape, the sides are extending both in the long direction and at an angle, and in which the wires of the bar (III) which form the wefts are substantially aligned with respect to the sides of said days.
Cet exemple illustré par la fig. 3 montre une structure textile ajourée conforme à l'invention réalisée selon une armure quatre barres.This example illustrated in fig. 3 shows an openwork textile structure according to the invention produced in a four-bar weave.
Comme pour les exemples précédents, les barres (I) et (II) forment la structure maillée ajourée du tricot alors que les barres (III) et (IV) sont enfilées à disposition et travaillent selon une armure tramée.As for the previous examples, the bars (I) and (II) form the openwork mesh structure of the knitted fabric while the bars (III) and (IV) are threaded at disposal and work in a woven weave.
Par rapport aux articles obtenus conformément aux exemples 1 et 2, cette structure textile ajourée se présente, après élargissement et traitement thermique, avec des jours en forme de losange, les fils tramés s'étendant sensiblement de manière rectiligne à l'intérieur du tricot.Compared to the articles obtained in accordance with Examples 1 and 2, this openwork textile structure appears, after widening and heat treatment, with diamond-shaped days, the screened threads extending substantially rectilinearly inside the knitted fabric.
Cet exemple illustré par la fig. 4 est une variante permettant d'obtenir une structure textile ajourée présentant des jours en forme de losange.This example illustrated in fig. 4 is a variant making it possible to obtain an openwork textile structure having diamond-shaped days.
Dans cette armure, les barres (I) et (II) forment la structure maillée alors que les barres (lll), (IV) (V) et (VI) travaillent selon une armure tramée. Après élargissement du tricot et traitement thermique, on obtient un article parfaitement stable et équilibré.In this armor, the bars (I) and (II) form the mesh structure while the bars (III), (IV) (V) and (VI) work in a screened armor. After widening the knit and heat treatment, a perfectly stable and balanced article is obtained.
Les articles obtenus conformément à l'invention peuvent trouver de nombreuses applications et être utilisés tels quels, par exemple comme filets de protection, filets brise-vent, pare-chutes, articles géotextiles.The articles obtained in accordance with the invention can find numerous applications and be used as such, for example as protective nets, windbreak nets, fall arresters, geotextile articles.
Ils peuvent également être utilisés comme éléments de renfort d'articles stratifiés, laminés...They can also be used as reinforcing elements for laminated, laminated articles, etc.
Bien entendu, l'invention n'est pas limitée aux exemples de réalisation décrits précédemment, mais elle en couvre toutes les variantes réalisées dans le même esprit.Of course, the invention is not limited to the embodiments described above, but it covers all the variants produced in the same spirit.
Ainsi, si dans les exemples précédents le tricot est obtenu sur un métier Rachel à une fonture, il pourrait être éventuellement envisagé de réaliser des tricots tubulaires sur des métiers Rachel à deux fontures, l'article obtenu étant soit conservé sous forme de tube, soit éventuellement coupé selon une génératrice, ce qui permet de doubler la largeur du produit fini.Thus, if in the previous examples the knitting is obtained on a Rachel loom with a needle bed, it could possibly be envisaged to produce tubular knits on Rachel looms with two needle beds, the article obtained being either kept in the form of a tube, or possibly cut according to a generator, which allows to double the width of the finished product.
Par ailleurs, de tel's articles pourraient également être réalisés sur tout autre métier à mailles jetées, tels que les métiers chaîne ou les métiers crochetFurthermore, such articles could also be produced on any other loom, such as the chain looms or the hook looms.
De plus, il est passible en combinant des armures différentes d'obtenir des jours de forme différente les uns des autres, par exemple une alternance de jours de forme hexagonale et de forme de losange.In addition, it is possible by combining different armors to obtain days of different shape from each other, for example an alternation of hexagonal and diamond-shaped days.
Par ailleurs, s'il est préférable de réaliser des articles constitués en totalité de fils comportant une gaine thermocollante, il pourrait être envisagé de n'avoir que certains de ces fils présentant une telle propriété, par exemple de n'avoir que les fils tramés ou que deux barres travaillant en opposition et qui forment des mailles.Furthermore, if it is preferable to produce articles made up entirely of wires comprising a heat-bonded sheath, it could be envisaged to have only some of these wires having such a property, for example to have only woven wires. or that two bars working in opposition and which form meshes.
Par ailleurs, outre les caractéristiques particulières résultant de la structure même de l'article conforme à l'invention, la présence d'une gaine thermoplastique permet d'obtenir une très bonne protection aux intempéries, au rayonnement ultraviolet, voire même des effets de coloration.Furthermore, in addition to the particular characteristics resulting from the very structure of the article in accordance with the invention, the presence of a thermoplastic sheath makes it possible to obtain very good protection against bad weather, ultraviolet radiation, or even coloring effects. .
Enfin, si comme matière on utilise des fils dont seulement la périphérie externe est à base d'une matière thermoplastique, il pourrait être envisagé d'utiliser tout autre type de fils équivalent, voire même des fils en totalité à base de matière thermoplastique. De même, si le traitement thermique auquel est soumis l'article est tel qu'il n'y a qu'une fusion partielle de la gaine thermoplastique, et ce afin de lui conserver une certaine souplesse, il pourrait être envisagé de réaliser un traitement thermique beaucoup plus poussé en fonction de la rigidité recherchée.Finally, if the material used is son of which only the outer periphery is based on a thermoplastic material, it could be envisaged to use any other type of equivalent son, or even son entirely made of thermoplastic material. Similarly, if the heat treatment to which the article is subjected is such that there is only a partial melting of the thermoplastic sheath, and this in order to keep it a certain flexibility, it could be envisaged to carry out a treatment much more thermal depending on the desired stiffness.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84420009T ATE19415T1 (en) | 1983-02-04 | 1984-01-26 | OPERATING TEXTILE STRUCTURE AND PROCESS OF PRODUCTION. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8301995A FR2540526B1 (en) | 1983-02-04 | 1983-02-04 | ADJUSTED TEXTILE STRUCTURE OF THE TYPE CONSISTING OF THREADED KNITTED KNIT AND METHOD FOR OBTAINING IT |
FR8301995 | 1983-02-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0118373A1 EP0118373A1 (en) | 1984-09-12 |
EP0118373B1 true EP0118373B1 (en) | 1986-04-23 |
Family
ID=9285724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84420009A Expired EP0118373B1 (en) | 1983-02-04 | 1984-01-26 | Open-work textile structure and its method of manufacture |
Country Status (8)
Country | Link |
---|---|
US (1) | US4563382A (en) |
EP (1) | EP0118373B1 (en) |
JP (1) | JPS59187655A (en) |
AT (1) | ATE19415T1 (en) |
CA (1) | CA1227939A (en) |
DE (1) | DE3460094D1 (en) |
FR (1) | FR2540526B1 (en) |
IL (1) | IL70814A (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5073441A (en) * | 1985-11-22 | 1991-12-17 | Societe Civile D'inventeurs Spml | Mesh structure with high resistance to piercing and tearing |
JPS62238850A (en) * | 1986-04-02 | 1987-10-19 | 栄レ−ス株式会社 | Warp knitted fabric |
US4748078A (en) * | 1985-12-05 | 1988-05-31 | Sakae Lace Co., Ltd. | Warp knitted lace fabrics |
JPS62133161A (en) * | 1985-12-05 | 1987-06-16 | 栄レ−ス株式会社 | Production of braided lace |
JPH07122206B2 (en) * | 1987-01-22 | 1995-12-25 | 日本マイヤー株式会社 | Netting and its formation method |
US4786549A (en) * | 1987-08-05 | 1988-11-22 | Liberty Fabrics, Inc. | Warp knit fabric with ravel resistant laid-in elastic yarns and method for manufacturing same |
AU619076B2 (en) * | 1989-02-22 | 1992-01-16 | Schlegel Corporation | Warp lock wire carrier |
DE4008057A1 (en) * | 1990-03-14 | 1991-09-19 | Stoll & Co H | KNITTED PATTERN |
GB9008586D0 (en) * | 1990-04-17 | 1990-06-13 | Ici Plc | Stabilised fabric |
JP2558422Y2 (en) * | 1990-11-30 | 1997-12-24 | 株式会社 ファスター | Net warp knitted fabric |
JP2974559B2 (en) * | 1993-11-05 | 1999-11-10 | 株式会社ファスター | Net warp knitted fabric |
ZA963715B (en) * | 1995-05-12 | 1996-11-20 | Tensar Corp | Bonded composite open mesh structural textiles |
US5795835A (en) * | 1995-08-28 | 1998-08-18 | The Tensar Corporation | Bonded composite knitted structural textiles |
EP0798688B1 (en) * | 1996-03-23 | 1998-06-03 | Mattes & Ammann GmbH & Co. KG | Open work warp knit fabric for flags, pennants, banners and the like |
EP1231311A1 (en) * | 2001-02-09 | 2002-08-14 | Trocme Vallart Emballage, SAS | Knit wear for making food packing nets, nets made of this knit wear and machine for making those nets |
US7011676B2 (en) * | 2002-09-05 | 2006-03-14 | Scimed Life Systems, Inc. | Flat knitted stent and method of making the same |
US20050037678A1 (en) * | 2003-08-11 | 2005-02-17 | Mack Patrick E. | Open grid fabric resin infusion media and reinforcing composite lamina |
US7579292B2 (en) * | 2003-08-11 | 2009-08-25 | Vrac, Llc | Open-work knitted textile resin infusion medium and reinforcing composite lamina |
DE102004060105A1 (en) * | 2004-04-19 | 2006-01-26 | Sefar Ag | Patch for receiving a printed pattern, process for its production and its use |
GR1006889B (en) * | 2005-04-11 | 2010-07-19 | Καρατζη Βιομηχανικες Ξενοδοχειακες Επιχειρησεις Α.Ε., | Manufacture of webs with controlled properties formed of multilayer synthetic yarns |
GB0719225D0 (en) * | 2007-10-03 | 2007-11-21 | John Heathcoat & Company Ltd | Knitted tulle |
CN103628251B (en) * | 2013-11-28 | 2016-03-23 | 常州市润源医疗用品科技有限公司 | A kind of medical reparation mesh sheet and manufacture method thereof |
KR102659313B1 (en) | 2016-10-28 | 2024-04-23 | 헌터더글라스인코포레이티드 | Coverings, related systems, and manufacturing methods for architectural features |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1237643A (en) * | 1958-10-18 | 1960-07-29 | Net without knot | |
FR1287973A (en) * | 1961-05-02 | 1962-03-16 | Mesh fabric with a grid reticular structure, for example tulle for curtains, as well as method and apparatus for its manufacture | |
FR1298994A (en) * | 1961-06-06 | 1962-07-20 | Ayello Et Fils Ets | Net without knot |
FR1310998A (en) * | 1962-01-18 | 1962-11-30 | Lace Originals Inc | Lace manufacturing process and products conforming to those obtained |
FR2250497A1 (en) * | 1973-11-12 | 1975-06-06 | Brochier & Fils | Knitted fabric for curtains or blinds etc. - is formed from yarn having a core surrounded by thermoplastic sheath |
US4133191A (en) * | 1976-04-09 | 1979-01-09 | Phillips Fibers Corporation | Knitted fabric having open areas |
US4241123A (en) * | 1978-11-14 | 1980-12-23 | Shih Seng C | Non-woven netting |
-
1983
- 1983-02-04 FR FR8301995A patent/FR2540526B1/en not_active Expired
-
1984
- 1984-01-23 CA CA000445824A patent/CA1227939A/en not_active Expired
- 1984-01-26 EP EP84420009A patent/EP0118373B1/en not_active Expired
- 1984-01-26 DE DE8484420009T patent/DE3460094D1/en not_active Expired
- 1984-01-26 AT AT84420009T patent/ATE19415T1/en not_active IP Right Cessation
- 1984-01-30 US US06/575,150 patent/US4563382A/en not_active Expired - Fee Related
- 1984-01-30 IL IL70814A patent/IL70814A/en unknown
- 1984-02-03 JP JP59018181A patent/JPS59187655A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2540526B1 (en) | 1985-10-04 |
DE3460094D1 (en) | 1986-05-28 |
EP0118373A1 (en) | 1984-09-12 |
JPS59187655A (en) | 1984-10-24 |
US4563382A (en) | 1986-01-07 |
ATE19415T1 (en) | 1986-05-15 |
CA1227939A (en) | 1987-10-13 |
IL70814A0 (en) | 1984-04-30 |
IL70814A (en) | 1988-07-31 |
FR2540526A1 (en) | 1984-08-10 |
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