EP1219191A2 - Shoe - Google Patents

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Publication number
EP1219191A2
EP1219191A2 EP01126902A EP01126902A EP1219191A2 EP 1219191 A2 EP1219191 A2 EP 1219191A2 EP 01126902 A EP01126902 A EP 01126902A EP 01126902 A EP01126902 A EP 01126902A EP 1219191 A2 EP1219191 A2 EP 1219191A2
Authority
EP
European Patent Office
Prior art keywords
polymer
shoe
sole
layer
coating method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01126902A
Other languages
German (de)
French (fr)
Other versions
EP1219191A3 (en
Inventor
Gérald Delgorgue
Catherine Fellouhe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
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Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP1219191A2 publication Critical patent/EP1219191A2/en
Publication of EP1219191A3 publication Critical patent/EP1219191A3/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/02—Footwear characterised by the material made of fibres or fabrics made therefrom
    • A43B1/04—Footwear characterised by the material made of fibres or fabrics made therefrom braided, knotted, knitted or crocheted
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/0215—Plastics or artificial leather
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/0235—Different layers of different material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/12—Special watertight footwear
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/01—Surface features
    • D10B2403/011—Dissimilar front and back faces
    • D10B2403/0112—One smooth surface, e.g. laminated or coated
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/021—Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics

Definitions

  • the present invention relates to an at least partially reinforced or waterproof shoe intended in particular for walking or hiking.
  • Another method is to soak the finished shoe in a latex bath or PVC, up to the desired sealing level.
  • This construction is also expensive in implementation because it requires very long processing times and investments expensive.
  • the upper is reinforced with regard to abrasion phenomena which are important, for example due to the presence of stones, rocks, ... etc. This is true even if the rod is made of thick material and presumed resistant such as leather or reinforced textile as known under the name "Cordura" commercial.
  • the shoes are used for example for mountain running at sporting events, called “raids", and are designed above all to allow good aeration / ventilation of the foot. They are generally made of aerated materials of the mesh / net type called commonly "mesh" for good ventilation.
  • materials of this type are particularly fragile and not very resistant to wear, especially by abrasion. These materials also have the disadvantage of being very flexible and insufficiently maintain the foot.
  • Such a coating process is particularly flexible to implement, and does not require no complicated tools such as a bath since the polymer is applied in a layer on the shoe once assembled, either with a brush or by spraying.
  • the shoe shown in FIG. 1 is made up in a manner known per se of a upper 1 and an outer sole 2, assembled to the upper by gluing or overmolding.
  • a layer of polymer 3 in the liquid state is applied to specific areas of the rod.
  • the assembly is then left to dry until the polymer layer or layers have hardened.
  • the polymer is a flexible or semi-rigid polymer to adapt to bending movements of the shoe during use. It is a polymer in solution, that is to say diluted in a solvent such as water (for example a latex diluted in water) or in an organic solvent, for polyurethane, polyvinyl chloride, silicone.
  • the solvent is used to make the polymer liquid for its application, either by brush or by spray.
  • the degree of viscosity of the polymer in solution will be adapted to the mode chosen application, so the solution will be more viscous for a brush application, brush, while the solution will be more fluid for application by spraying, example with a pistol.
  • the solvent evaporates during the drying phase which can take place either naturally or be activated by means of ventilation / heating.
  • the polymer can also be made liquid by heating and then solidifies on cooling.
  • Polymers such as impact polystyrenes based on thermoplastic or polyamide can also be used.
  • Polyurethane is a preferred polymer for its excellent semi-rigidity qualities, adhesive power, stability at low temperatures, excellent abrasion resistance.
  • the number of polymer layers applied also depends on the characteristics of abrasion resistance, waterproofness, aesthetics, etc., sought after. Thereafter we will talk about layer, even if it is obtained by several successive applications.
  • fillers of rubber, graphite, dye, fiberglass, etc. can be added to the polymer to improve adhesion, abrasion resistance, aesthetic appearance.
  • the layer 3 goes up towards the front of the shoe along a curved line 3a and towards the rear of the shoe along a curved line 3b.
  • This application method has the important advantage of avoiding straight line effects horizontal obtained by application by soaking in a bath and therefore allows an effect markedly improved aesthetics.
  • Layer 3 can be applied to the upper of the shoe at predetermined locations to increase adhesion, tightness, abrasion resistance or to obtain an effect particular aesthetics.
  • the polymer layer 3 is applied in a strip peripherally on the shoe simultaneously straddling the upper 1 and the outer sole 2.
  • the polymer strip 3 covers the junction line 4 between the rod 1 and the sole 2, and extends on either side of this line 4 both on the upper 1 and the sole 2. Therefore, the polymer strip 3 makes it possible to guarantee a perfect tightness of the stem / sole junction. It can be applied more or less high on the upper depending on the degree of tightness desired for the shoe.
  • the polymer strip 3 will be applied to the shoe after having hidden, by appropriate caches, the areas that you do not want to cover. This makes it possible to have a frank delimitation between the areas covered and the areas not covered. If, on the contrary, a "degraded" effect is desired between the areas covered and not covered, the caches will be removed.
  • FIG. 3 illustrates another embodiment in which the polymer layer 3 is applied to a very ventilated upper material 1 such as mesh.
  • the mesh is used for make ventilated shoes, very light, the drawback of this type of material obtained by knitting is that it is very fragile and sensitive to abrasion.
  • the mesh used will be a so-called three-dimensional mesh, that is to say a material made up, as shown in FIG. 4, of two textile faces or layers parallels 11, 12 connected together and kept at a distance from each other by a layer median of wires 13 extending essentially perpendicular to the plane constituted by each of these faces and defining an elastically compressible air space between these two faces 11, 12.
  • Such a three-dimensional textile material is generally formed during a same manufacturing step. It can also be made using two textile tablecloths produced independently of each other and then connected by an airy layer according to its thickness.
  • the two faces 11, 12 are preferably constituted by knitted or knitted plies of jersey, they can also be made up of sheets of woven or non-woven threads.
  • the polymer layer 3 is applied on the outer face 11 and therefore improves the wear resistance thereof, without, however, hinder the passage of air A through the internal face 12 and the layer of wires 13 (see arrows A).
  • the external face 11 of the fabric 10 can even be made completely waterproof by applying a layer of polymer of sufficient thickness without limit breathability as much as air can escape through the middle layer 13 (see arrows A).
  • the polymer layer 3 makes the fabric at least partially waterproof and especially "waterproof" to the penetration of stones, sand.
  • the coating of polymer 3 will not necessarily stop at the first face 11 as a function in particular of the viscosity of the polymer 3 and of the size of the holes of the mesh constituting this first face.
  • said material will be more or less waterproof.
  • the mesh material of the external face 11 will have small holes, so as to ensure that the polymer coating does not penetrate more front in the fabric.
  • the internal face 12 will advantageously be made of a mesh fabric with large holes to promote ventilation.
  • the polymer layer is applied astride the junction line 4 between the sole 2 and the upper 1.

Abstract

Procédé d'enduction d'une chaussure comportant une tige et une semelle, caractérisé en ce qu'il comprend les étapes consistant à : assembler la tige sur la semelle, à appliquer en des zones déterminées de la tige au moins une couche d'un polymère souple ou semi-rigide à l'état liquide, à laisser sécher. Le polymère est appliqué au pinceau ou par pulvérisation. De préférence, le polymère est appliqué à cheval sur la tige et la semelle. <IMAGE>Method for coating a shoe comprising a upper and a sole, characterized in that it comprises the steps consisting in: assembling the upper on the sole, applying in determined areas of the upper at least one layer of a flexible or semi-rigid polymer in the liquid state, to allow to dry. The polymer is applied by brush or by spraying. Preferably, the polymer is applied astride the upper and the sole. <IMAGE>

Description

La présente invention concerne une chaussure au moins partiellement renforcée ou étanche destinée notamment à la marche ou à la randonnée.The present invention relates to an at least partially reinforced or waterproof shoe intended in particular for walking or hiking.

Différents procédés sont connus pour étancher une chaussure. Ils consistent par exemple à prévoir un chausson intérieur en matériau respiro-étanche, mais cette construction est onéreuse parce que le matériau respiro-étanche est très coûteux et que toutes les coutures doivent être étanchées par des joints d'étanchéité rajoutés par collage.Different methods are known for sealing a shoe. They consist for example of provide an inner liner of breathable material, but this construction is expensive because the breathable material is very expensive and all the seams must be sealed with gaskets added by gluing.

Un autre procédé consiste à tremper la chaussure une fois terminée dans un bain de latex ou de PVC, jusqu'au niveau d'étanchéité souhaité. Cette construction est également coûteuse en mise en oeuvre car elle nécessite des temps de traitement très longs et des investissements coûteux.Another method is to soak the finished shoe in a latex bath or PVC, up to the desired sealing level. This construction is also expensive in implementation because it requires very long processing times and investments expensive.

Par étanche, on entend au sens du brevet résistant à la pénétration de l'eau, cette résistance pouvant être souhaitée plus ou moins élevée en fonction du type d'utilisation recherché pour la chaussure.By waterproof is understood in the sense of the patent resistant to the penetration of water, this resistance may be desired higher or lower depending on the type of use sought for the shoe.

Pour les chaussures de randonnée ou de marche, il est également souhaité que la tige soit renforcée vis à vis des phénomènes d'abrasion qui sont importants, par exemple du fait de la présence de pierres, rochers,...etc. Ceci est vrai même si la tige est en un matériau épais et présumé résistant tel que du cuir ou du textile renforcé tel que connu sous la dénomination commerciale "Cordura".For hiking or walking shoes, it is also desired that the upper is reinforced with regard to abrasion phenomena which are important, for example due to the presence of stones, rocks, ... etc. This is true even if the rod is made of thick material and presumed resistant such as leather or reinforced textile as known under the name "Cordura" commercial.

Pour des chaussures plus légères du type sport, loisir ou course de montagne réalisées en matériaux aérés, ce problème de résistance à l'abrasion est encore plus crucial. Les chaussures sont utilisées par exemple pour la course en montagne lors de manifestations sportives, appelées "raids", et sont conçues avant tout pour permettre une bonne aération / ventilation du pied. Elles sont généralement réalisées en des matériaux aérés du type maille / filet appelés communément "mesh", pour une bonne ventilation.For lighter shoes of the sport, leisure or mountain running type made in airy materials, this abrasion resistance problem is even more crucial. The shoes are used for example for mountain running at sporting events, called "raids", and are designed above all to allow good aeration / ventilation of the foot. They are generally made of aerated materials of the mesh / net type called commonly "mesh" for good ventilation.

Or, les matériaux de ce type sont particulièrement fragiles et peu résistants à l'usure, notamment par abrasion. Ces matériaux présentent également l'inconvénient d'être très souples et de maintenir insuffisamment le pied.However, materials of this type are particularly fragile and not very resistant to wear, especially by abrasion. These materials also have the disadvantage of being very flexible and insufficiently maintain the foot.

On recherche donc pour ce type de chaussures utilisant des matériaux de type maille, à renforcer la tenue et la résistance à l'usure / abrasion.So we are looking for this type of shoe using mesh type materials, reinforce the resistance and resistance to wear / abrasion.

On recherche également pour ces mêmes matériaux à améliorer la résistance à la pénétration de l'eau ou autres salissures (petits cailloux, poussières, grains de sable,...etc.) sans pour autant porter préjudice à la respirabilité /ventilation de la chaussure.We are also looking for these same materials to improve resistance to penetration of water or other dirt (small stones, dust, grains of sand, ... etc.) without prejudicing the breathability / ventilation of the shoe.

Enfin, on souhaite pouvoir renforcer les chaussures, tout en permettant de conserver, voire même d'améliorer l'aspect esthétique de celles-ci, ce qui n'est pas le cas avec des procédés d'étanchage connus où la chaussure est trempée dans un bain de latex ou PVC, et comporte de ce fait une ligne de démarcation droite et peu esthétique entre le matériau de renfort et le reste de la tige. Finally, we want to be able to reinforce the shoes, while allowing to preserve, even even improve the aesthetic appearance of them, which is not the case with processes known waterproofing where the shoe is soaked in a latex or PVC bath, and comprises this makes a straight line and unattractive between the reinforcement material and the rest of the stem.

Le but de la présente invention est de remédier à cet inconvénient, à cet effet elle propose un nouveau procédé d'enduction de chaussure du type qui comporte une tige et une semelle, caractérisé en ce qu'il comprend les étapes consistant à :

  • assembler la tige sur la semelle,
  • à appliquer en des zones déterminées de la tige au moins une couche d'un polymère souple ou semi-rigide à l'état liquide,
  • à laisser sécher.
The object of the present invention is to remedy this drawback, for this purpose it proposes a new method of coating a shoe of the type which comprises a rod and a sole, characterized in that it comprises the steps consisting in:
  • assemble the upper on the sole,
  • applying in specific areas of the stem at least one layer of a flexible or semi-rigid polymer in the liquid state,
  • to let dry.

Un tel procédé d'enduction est particulièrement souple à mettre en oeuvre, et ne nécessite pas d'outillage compliqué tel que bain puisque le polymère est appliqué en couche sur la chaussure une fois assemblée, soit au pinceau, soit par pulvérisation.Such a coating process is particularly flexible to implement, and does not require no complicated tools such as a bath since the polymer is applied in a layer on the shoe once assembled, either with a brush or by spraying.

Il permet des effets décoratifs, puisque la ou les couches de polymère peuvent être appliquées exactement aux endroits souhaités, et permet d'éviter les lignes droites obtenues dans les procédés d'enduction par trempage.It allows decorative effects, since the polymer layer (s) can be applied exactly to the desired locations, and avoids the straight lines obtained in dip coating processes.

De toute façon, l'invention sera mieux comprise et d'autres caractéristiques de celle-ci seront mises en évidence à l'aide de la description qui suit en référence au dessin schématique annexé et dans lequel :

  • la figure 1 est une vue en perspective d'une chaussure obtenue à l'aide du procédé selon l'invention, selon un premier mode de réalisation,
  • la figure 2 est une vue de détail de la figure 1,
  • la figure 3 est une vue de côté d'une chaussure selon un second mode de réalisation,
  • la figure 4 est une vue en coupe selon IV-IV de la figure 3.
In any case, the invention will be better understood and other characteristics thereof will be highlighted with the aid of the description which follows with reference to the appended schematic drawing and in which:
  • FIG. 1 is a perspective view of a shoe obtained using the method according to the invention, according to a first embodiment,
  • FIG. 2 is a detailed view of FIG. 1,
  • FIG. 3 is a side view of a shoe according to a second embodiment,
  • FIG. 4 is a sectional view along IV-IV of FIG. 3.

La chaussure représentée à la figure 1 est constituée de façon connue en soi d'une tige 1 et d'une semelle externe 2, assemblée à la tige par collage ou surmoulage. Une fois la chaussure assemblée, c'est-à-dire la semelle 2 fixée, par collage ou surmoulage sur la tige 1, au moins une couche de polymère 3 à l'état liquide est appliquée sur des zones déterminées de la tige. On laisse ensuite sécher l'ensemble jusqu'à durcissement de la ou des couches de polymère. Le polymère est un polymère souple ou semi-rigide pour s'adapter aux mouvements de flexion de la chaussure lors de l'utilisation. C'est un polymère en solution, c'est-à-dire dilué dans un solvant comme de l'eau (par exemple un latex dilué dans l'eau) ou dans un solvant organique, pour un polyuréthane, polychlorure de vinyle, silicone.The shoe shown in FIG. 1 is made up in a manner known per se of a upper 1 and an outer sole 2, assembled to the upper by gluing or overmolding. Once the shoe assembled, that is to say the sole 2 fixed, by gluing or overmolding on the rod 1, at least a layer of polymer 3 in the liquid state is applied to specific areas of the rod. The assembly is then left to dry until the polymer layer or layers have hardened. The polymer is a flexible or semi-rigid polymer to adapt to bending movements of the shoe during use. It is a polymer in solution, that is to say diluted in a solvent such as water (for example a latex diluted in water) or in an organic solvent, for polyurethane, polyvinyl chloride, silicone.

Le solvant sert à rendre le polymère liquide pour son application, soit au pinceau, soit par pulvérisation. Le degré de viscosité du polymère en solution sera adapté au mode d'application choisi, ainsi la solution sera plus visqueuse pour une application par brosse, pinceau, tandis que la solution sera plus fluide pour une application par pulvérisation, par exemple au pistolet.The solvent is used to make the polymer liquid for its application, either by brush or by spray. The degree of viscosity of the polymer in solution will be adapted to the mode chosen application, so the solution will be more viscous for a brush application, brush, while the solution will be more fluid for application by spraying, example with a pistol.

Le solvant s'évapore durant la phase de séchage qui peut s'effectuer soit naturellement, soit être activée par des moyens de ventilation / chauffage. Le polymère peut également être rendu liquide par chauffage et se solidifie alors en refroidissant. The solvent evaporates during the drying phase which can take place either naturally or be activated by means of ventilation / heating. The polymer can also be made liquid by heating and then solidifies on cooling.

D'autres polymères tels des polystyrènes choc à base thermoplastique ou polyamide peuvent être également utilisés. Le polyuréthane est un polymère préféré pour ses excellentes qualités de semi-rigidité, pouvoir adhésif, stabilité aux basses températures, excellente résistance à l'abrasion.Other polymers such as impact polystyrenes based on thermoplastic or polyamide can also be used. Polyurethane is a preferred polymer for its excellent semi-rigidity qualities, adhesive power, stability at low temperatures, excellent abrasion resistance.

Bien entendu, les autres polymères cités ci-avant sont également très intéressants si des qualités mécaniques moins contraignantes sont recherchées.Of course, the other polymers mentioned above are also very interesting if less restrictive mechanical qualities are sought.

Le nombre de couches de polymère appliquées dépend également des caractéristiques de résistance à l'abrasion, étanchéité, esthétiques,...etc., recherchées. Par la suite on parlera de couche, même si celle-ci est obtenue par plusieurs applications successives.The number of polymer layers applied also depends on the characteristics of abrasion resistance, waterproofness, aesthetics, etc., sought after. Thereafter we will talk about layer, even if it is obtained by several successive applications.

De même, des charges de caoutchouc, graphite, colorant, fibre de verre,...etc., peuvent être ajoutées au polymère pour améliorer l'adhérence, résistance à l'abrasion, l'aspect esthétique.Similarly, fillers of rubber, graphite, dye, fiberglass, etc. can be added to the polymer to improve adhesion, abrasion resistance, aesthetic appearance.

Comme la couche de polymère est appliquée au pinceau ou par pulvérisation sur la chaussure déjà assemblée, tous les effets esthétiques tels que vague,...etc., peuvent être obtenus.As the polymer layer is applied by brush or spray on the shoe already assembled, all aesthetic effects such as wave, ... etc., can be obtained.

Ainsi, dans l'exemple représenté à la figure 1, la couche 3 remonte vers l'avant de la chaussure selon une ligne courbe 3a et vers l'arrière de la chaussure selon une ligne courbe 3b.Thus, in the example represented in FIG. 1, the layer 3 goes up towards the front of the shoe along a curved line 3a and towards the rear of the shoe along a curved line 3b.

Ce mode d'application a notamment l'avantage important d'éviter les effets de ligne droite horizontale obtenus par une application par trempage dans un bain et permet donc un effet esthétique nettement amélioré.This application method has the important advantage of avoiding straight line effects horizontal obtained by application by soaking in a bath and therefore allows an effect markedly improved aesthetics.

La couche 3 peut être appliquée sur la tige de la chaussure à des endroits prédéterminés pour augmenter l'adhérence, l'étanchéité, la résistance à l'abrasion ou pour obtenir un effet esthétique particulier.Layer 3 can be applied to the upper of the shoe at predetermined locations to increase adhesion, tightness, abrasion resistance or to obtain an effect particular aesthetics.

Selon un mode de réalisation préférentiel, la couche de polymère 3 est appliquée en bande périphériquement sur la chaussure simultanément à cheval sur la tige 1 et la semelle externe 2.According to a preferred embodiment, the polymer layer 3 is applied in a strip peripherally on the shoe simultaneously straddling the upper 1 and the outer sole 2.

Ainsi, comme le montre plus particulièrement la figure 2, la bande de polymère 3 recouvre la ligne de jonction 4 entre la tige 1 et la semelle 2, et s'étend de part et d'autre de cette ligne 4 à la fois sur la tige 1 et la semelle 2. De ce fait, la bande de polymère 3 permet de garantir une étanchéité parfaite de la jonction tige / semelle. Elle peut être appliquée plus ou moins haut sur la tige en fonction du degré d'étanchéité souhaité pour la chaussure.Thus, as shown more particularly in FIG. 2, the polymer strip 3 covers the junction line 4 between the rod 1 and the sole 2, and extends on either side of this line 4 both on the upper 1 and the sole 2. Therefore, the polymer strip 3 makes it possible to guarantee a perfect tightness of the stem / sole junction. It can be applied more or less high on the upper depending on the degree of tightness desired for the shoe.

Selon l'effet esthétique recherché, la bande de polymère 3 sera appliquée sur la chaussure après avoir caché, par des caches appropriées, les zones que l'on ne souhaite pas recouvrir. Ceci permet d'avoir une délimitation franche entre les zones couvertes et les zones non couvertes. Si l'on souhaite au contraire un effet de "dégradé" entre les zones couvertes et non couvertes, les caches seront supprimés.Depending on the desired aesthetic effect, the polymer strip 3 will be applied to the shoe after having hidden, by appropriate caches, the areas that you do not want to cover. This makes it possible to have a frank delimitation between the areas covered and the areas not covered. If, on the contrary, a "degraded" effect is desired between the areas covered and not covered, the caches will be removed.

La figure 3 illustre un autre mode de réalisation dans lequel la couche de polymère 3 est appliquée sur un matériau de tige 1 très aéré tel que de la maille. La maille s'utilise pour réaliser des chaussure aérées, très légères, l'inconvénient de ce type de matériau obtenu par tricotage est qu'il est très fragile et sensible à l'abrasion. FIG. 3 illustrates another embodiment in which the polymer layer 3 is applied to a very ventilated upper material 1 such as mesh. The mesh is used for make ventilated shoes, very light, the drawback of this type of material obtained by knitting is that it is very fragile and sensitive to abrasion.

On a fait la constatation surprenante qu'une couche de polymère appliquée sur le matériau textile en maille améliore grandement la résistance à l'abrasion de ce matériau, sans empêcher l'air de passer et donc en conservant une respirabilité du matériau.We made the surprising observation that a layer of polymer applied to the material mesh textile greatly improves the abrasion resistance of this material, without preventing air to pass and therefore retaining breathability of the material.

De façon préférentielle, la maille utilisée sera une maille dite tridimensionnelle, c'est-à-dire un matériau constitué, comme le montre la figure 4, de deux faces ou nappes textiles parallèles 11, 12 reliées ensemble et maintenues à distance l'une de l'autre par une couche médiane de fils 13 s'étendant essentiellement perpendiculairement au plan constitué par chacune de ces faces et définissant un espace d'air compressible élastiquement entre ces deux faces 11, 12. Un tel matériau textile tridimensionnel est généralement constitué au cours d'une même étape de fabrication. Il peut être également constitué à l'aide de deux nappes textiles réalisées indépendamment l'une de l'autre et reliées ensuite par une couche aérée selon son épaisseur.Preferably, the mesh used will be a so-called three-dimensional mesh, that is to say a material made up, as shown in FIG. 4, of two textile faces or layers parallels 11, 12 connected together and kept at a distance from each other by a layer median of wires 13 extending essentially perpendicular to the plane constituted by each of these faces and defining an elastically compressible air space between these two faces 11, 12. Such a three-dimensional textile material is generally formed during a same manufacturing step. It can also be made using two textile tablecloths produced independently of each other and then connected by an airy layer according to its thickness.

Les deux faces 11, 12 sont de préférence constituées par des nappes de tricot maille ou jersey, elles peuvent également être constituées par des nappes de fils tissés ou non tissés.The two faces 11, 12 are preferably constituted by knitted or knitted plies of jersey, they can also be made up of sheets of woven or non-woven threads.

Dans le cas d'un matériau maille tridimensionnel 10, la couche de polymère 3 est appliquée sur la face externe 11 et améliore donc la résistance à l'usure de celle-ci, sans pour autant gêner le passage de l'air A à travers la face interne 12 et la couche de fils 13 (cf. flèches A).In the case of a three-dimensional mesh material 10, the polymer layer 3 is applied on the outer face 11 and therefore improves the wear resistance thereof, without, however, hinder the passage of air A through the internal face 12 and the layer of wires 13 (see arrows A).

Dans le cas présent, la face externe 11 du tissu 10 peut même être rendue complètement étanche à l'eau par l'application d'une couche de polymère d'épaisseur suffisante sans pour autant limiter la respirabilité puisque l'air peut s'échapper par la couche médiane 13 (cf. flèches A).In the present case, the external face 11 of the fabric 10 can even be made completely waterproof by applying a layer of polymer of sufficient thickness without limit breathability as much as air can escape through the middle layer 13 (see arrows A).

Dans tous les cas, la couche de polymère 3 rend le tissu au moins partiellement étanche et notamment "étanche" à la pénétration de cailloux, sable.In all cases, the polymer layer 3 makes the fabric at least partially waterproof and especially "waterproof" to the penetration of stones, sand.

Bien entendu l'enduction de polymère 3 ne s'arrêtera pas nécessairement à la première face 11 en fonction notamment de la viscosité du polymère 3 et de la taille des trous de la maille constituant cette première face.Of course the coating of polymer 3 will not necessarily stop at the first face 11 as a function in particular of the viscosity of the polymer 3 and of the size of the holes of the mesh constituting this first face.

En fonction de la pénétration plus ou moins importante du polymère à l'intérieur du matériau tridimensionnel, ledit matériau sera plus ou moins étanche à l'eau.Depending on the more or less significant penetration of the polymer inside the three-dimensional material, said material will be more or less waterproof.

Selon un mode de réalisation préféré, le matériau en maille de la face externe 11 aura des trous de faible dimension, de façon à garantir que l'enduction polymère ne pénètre pas plus avant dans le tissu. Dans ce cas, la face interne 12 sera avantageusement en un tissu maille à gros trous pour favoriser la ventilation.According to a preferred embodiment, the mesh material of the external face 11 will have small holes, so as to ensure that the polymer coating does not penetrate more front in the fabric. In this case, the internal face 12 will advantageously be made of a mesh fabric with large holes to promote ventilation.

De préférence, comme dans l'exemple de réalisation précédent, la couche de polymère est appliquée à cheval sur la ligne de jonction 4 entre la semelle 2 et la tige 1.Preferably, as in the previous embodiment, the polymer layer is applied astride the junction line 4 between the sole 2 and the upper 1.

Bien entendu, la présente invention n'est pas limitée au mode de réalisation décrit ci-avant à titre d'exemple non limitatif mais en englobe tous les modes de réalisation similaires ou équivalents.Of course, the present invention is not limited to the embodiment described above by way of nonlimiting example but encompasses all similar embodiments thereof or equivalents.

Claims (12)

Procédé d'enduction d'une chaussure comportant une tige et une semelle, caractérisé en ce qu'il comprend les étapes consistant à : assembler la tige sur la semelle, à appliquer en des zones déterminées de la tige au moins une couche d'un polymère souple ou semi-rigide à l'état liquide, à laisser sécher. Method for coating a shoe comprising an upper and a sole, characterized in that it comprises the steps consisting in: assemble the upper on the sole, applying in specific areas of the stem at least one layer of a flexible or semi-rigid polymer in the liquid state, to let dry. Procédé d'enduction selon la revendication 1, caractérisé en ce que le polymère est appliqué au pinceau.Coating method according to claim 1, characterized in that the polymer is applied with a brush. Procédé d'enduction selon la revendication 1, caractérisé en ce que le polymère est appliqué par pulvérisation.Coating method according to claim 1, characterized in that the polymer is applied by spraying. Procédé d'enduction selon l'une des revendications 1 à 3, caractérisé en ce que le polymère est appliqué à cheval sur la tige et la semelle.Coating method according to one of claims 1 to 3, characterized in that the polymer is applied astride the upper and the sole. Procédé d'enduction selon l'une des revendications 1 à 4, caractérisé en ce que le polymère est dilué dans un solvant.Coating method according to one of claims 1 to 4, characterized in that the polymer is diluted in a solvent. Procédé d'enduction selon l'une des revendications 1 à 4, caractérisé en ce que le polymère est rendu liquide par chauffage.Coating method according to one of claims 1 to 4, characterized in that the polymer is made liquid by heating. Procédé d'enduction selon l'une des revendications 1 à 6, caractérisé en ce que le polymère est choisi parmi les polymères suivants : latex, polyuréthane, PVC, silicone, polyamide, caoutchouc synthétique, polystyrène choc à base thermoplastique.Coating method according to one of claims 1 to 6, characterized in that the polymer is chosen from the following polymers: latex, polyurethane, PVC, silicone, polyamide, synthetic rubber, impact-resistant polystyrene based on thermoplastic. Chaussure obtenue par le procédé selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'elle comporte une tige et une semelle externe et en ce que des zones prédéterminées de la tige sont enduites d'au moins une couche de polymère appliquée après assemblage de la tige à la semelle.Shoe obtained by the method according to any one of claims 1 to 7, characterized in that it comprises a upper and an outer sole and in that predetermined areas of the upper are coated with at least one layer of applied polymer after assembly of the upper to the sole. Chaussure selon la revendication 8, caractérisée en ce que la couche de polymère est appliquée en bande simultanément à cheval sur la tige et la semelle externe.Shoe according to claim 8, characterized in that the polymer layer is applied in a strip simultaneously astride the upper and the outer sole. Chaussure selon la revendication 9, caractérisée en ce que le polymère est choisi parmi les polymères suivants : latex, polyuréthane, PVC, silicone, polyamide, caoutchouc synthétique, polystyrène choc à base thermoplastique.Shoe according to claim 9, characterized in that the polymer is chosen from the following polymers: latex, polyurethane, PVC, silicone, polyamide, synthetic rubber, impact polystyrene based on thermoplastic. Chaussure selon la revendication 10, caractérisée en ce que la tige comporte un matériau en maille.Shoe according to claim 10, characterized in that the upper comprises a mesh material. Chaussure selon la revendication 11, caractérisée en ce que la tige comporte un matériau en maille de type tridimensionnel.Shoe according to claim 11, characterized in that the upper comprises a three-dimensional type mesh material.
EP01126902A 2000-12-22 2001-11-13 Shoe Withdrawn EP1219191A3 (en)

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EP1219191A3 (en) 2004-01-14
FR2818506B1 (en) 2004-06-18
US6986183B2 (en) 2006-01-17
CA2364184A1 (en) 2002-06-22
US20020078599A1 (en) 2002-06-27
FR2818506A1 (en) 2002-06-28

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