EP1383403B1 - Absorbent and desorbent device - Google Patents

Absorbent and desorbent device Download PDF

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Publication number
EP1383403B1
EP1383403B1 EP02732800A EP02732800A EP1383403B1 EP 1383403 B1 EP1383403 B1 EP 1383403B1 EP 02732800 A EP02732800 A EP 02732800A EP 02732800 A EP02732800 A EP 02732800A EP 1383403 B1 EP1383403 B1 EP 1383403B1
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EP
European Patent Office
Prior art keywords
absorbent
microporous membrane
desorbent
membrane
covering
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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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EP02732800A
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German (de)
French (fr)
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EP1383403A1 (en
Inventor
Gérard BIWAND
Jacques Sonderer
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International Podiatrist Consulting (Societe a Responsabilite Limitee)
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International Podiatrist Consulting (Societe a Responsabilite Limitee)
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0045—Footwear characterised by the material made at least partially of deodorant means
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
    • A43B17/102—Moisture absorbing socks; Moisture dissipating socks
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials

Definitions

  • the present invention relates to the field of materials absorbents, in particular used as articles of clothing or as products for household purposes and relates to an absorbent device and desorbent.
  • hypersudation or hyperidrosis has also been treated by using products to be applied directly to the skin, such as that gels, sprays, powders or other magistral preparations, or still by vaporization of anti-mycotic and antibacterial products directly in the shoes.
  • products to be applied directly to the skin such as that gels, sprays, powders or other magistral preparations, or still by vaporization of anti-mycotic and antibacterial products directly in the shoes.
  • all these methods of treatment have been only very weak.
  • charcoal soles active made of leather or synthetic fibers, which have good moisture absorption and odor control.
  • saturation capacity moisture remains trapped in the shoe and leads to a maceration conducive to proliferation bacterial and odor retention.
  • the present invention aims to overcome these disadvantages by providing an absorbent and desorbent device allowing, on the one hand, a fast and efficient absorption of any moisture, especially excessive sweating or splashing of water and, on the other hand, a rapid desorption of accumulated moisture avoiding all formations mycotic or unwanted bacterial
  • the absorbent and desorbent device according to the invention comprises the features of claim 1.
  • Figures 1 and 2 of the accompanying drawings show a device absorbent and desorbent which essentially consists of at least one microporous membrane with absorbent and desorbent properties 1, by less a permeable porous coating 2 and at least one underlayer damping impermeable, essentially closed cell.
  • microporous membrane with absorbent properties and Desorbent 1 is permeable to all fluids on both sides.
  • a membrane 1 is advantageously based on a microporous polyolefin of the ultra-high density polyethylene type loaded with silica, such as known in particular from EP-A-0 892 647.
  • This membrane whose porosity is greater than 60%, has a very high absorbency and desorbs very quickly, so that a return to the initial characteristics of the product can be obtained by less than two hours.
  • the material constituting this membrane 1 has a good shock absorbing capacity, thus avoiding the effect of microtrauma and increase comfort when walking and practicing athletic.
  • this membrane which can be cut very easily and which remains indeformable even after intensive use, is very easy, can be washed with soap and water, and participates very effectively in the fight against mycotic and bacterial infections, as these can develop much more difficult in a dry environment than in a humid environment.
  • the micro-membrane porous having absorbing and desorbent properties 1 may be provided with grooves forming channels for evacuation of moisture.
  • the permeable porous coating 2 may consist, in a use of the device as shoe sole, either in the form a woven, non-woven or synthetic textile coating, this coating being with micro-perforations or being highly porous and presenting good drying properties ( Figure 1).
  • Such a porous coating 2 is essentially intended to allow a comfortable contact with the party upper part of the device and must be easily permeable to water and air, to allow the easy and quick passage of liquids to the membrane 1 and the rapid desorption of the membrane 1 disposed under this coating porous 2.
  • the permeable porous coating 2 can advantageously be constituted by a fabric or a non-woven covering with high porosity and low water absorption capacity. Indeed, in such a case, it is necessary that most of the moisture gets into the micro porous membrane 1 and that during desorption, the moisture can evaporate quickly without being retained by the coating 2, the latter obviously having to dry very quickly.
  • the waterproof damping underlayer 3 is advantageously pierced with sufficiently large and numerous holes for allow evacuation of moisture from below by evaporation.
  • the damping sub-layer waterproof 3 may also not be provided with holes when the porous micro membrane 1 is provided with grooves forming channels evacuation of moisture.
  • the waterproof damping underlayer 3 can be consisting of a foam of an ethylene / vinyl acetate copolymer microperforated and thin, namely of the order of 2 mm in the case of a sole.
  • a foam simultaneously makes it possible to ensure damping of micro-trauma during support on the device, by example during walking, and an air exchange with the micro membrane porous 1, in particular from the underside of the device, for promote desorption, when said device is no longer loaded.
  • the foam constituting the microporous sub-layer 3 has good mechanical tensile properties at tearing and abrasion, as well as good dynamic properties of resilience and flexural strength. In addition, such a foam is little sensitive to aging due to air, light, ozone and heat and resists cold aggression and fire. In addition, this foam has a good resistance to fluids, such as oils, solvents, ketones, acids, gases and water.
  • the constituent elements of the absorbent and desorbent device according to the invention can be assembled together in a sandwich functional by sewing or gluing.
  • this one is advantageously carried out by spot bonding or heat sealing at medium of a fusible product 4 having a mesh structure and interposed on either side of the microporous membrane 1, between the porous coating 2 and the microporous membrane, respectively 1 and between this membrane 1 and the impervious damping underlayer 3 ( Figures 1 and 2).
  • a sticky product is especially available in strips deposited on a transfer medium, the assembly being wound into coils.
  • the fusible product has a mesh as it occupies a very small part of the total surface of the microporous membrane 1 and, preferably about 12% of this area, so that the capabilities, on the one hand, moisture transmission through the porous coating permeable 2 to membrane 1 and, on the other hand, evaporation of moisture from the membrane 1 through the permeable porous coating 2, are maintained optimally. This property is also used to ensure a possibility of air circulation between the underside of the membrane 1 and the waterproof damping underlayer 3.
  • An assembly by heat-sealing makes it possible to guarantee a perfect connection between the elements 1 to 3 constituting the device according to the invention.
  • the absorbing device and desorbent may be in the form of a soleplate to be inserted into a shoe or in the form of an insole permanently in a shoe and constituting the first mounting or sole of cleanliness of the shoe.
  • the absorbent and desorbent device may be provided, by coating, by spraying or otherwise, one or more layers of anti-bacterial agents and / or fungicides.
  • the forecast of such additional layers can meet the strict requirements of prevention of bacterial or mycotic spreads, particularly in the of dermatology, diabetology, with regard to the sole and hotels, balneotherapy and, in general, public places which concerns the bath mat.
  • the device according to the invention makes it possible to answer particularly effective way of addressing needs rapid absorption of moisture, especially resulting from excessive sweating.
  • This device can be reused very quickly, efficiently, because of its fast desorption power allowing it a return to starting characteristics in a very short time.
  • the device complies with the invention can provide an insulation function, both of heat and cold.
  • this device attracts moisture to dissipate it then in the air, it respects in particular the physiological perspiration, unlike local anti-sweat treatments, when used as a sole in an article of footwear.
  • the device according to the invention does not constitute any favorable terrain for allergy developments, no component allergenic being part of its constitution.
  • the device allows a regression of certain disorders such as mycoses or eczema, the aggravating factor of these troubles always being a permanent moisture.
  • the invention it is possible to produce a device to quickly and effectively absorb significant moisture and to desorb, also quickly, said moisture, as soon as the the wet spring.
  • This device is more particularly applicable in the form of shoe sole; insole insert or sole first but is also applicable in other areas, including domestic, by example, for rapid absorption of projections and for desorption corresponding, allowing a prolonged use of the means of absorption and not a systematic replacement of it with the expense of washing and corresponding drying.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to an absorbent and desorbent device, characterised in essentially comprising at least one micro-porous membrane (1) with absorbent and desorbent properties, by means of at least one porous permeable cover (2) and at least one impermeable cushioning sub-layer (3). The invention is particularly applicable in the field of absorbent materials, most particularly when used for items of clothing or domestic products.

Description

La présente invention concerne le domaine des matériaux absorbants, en particulier utilisés comme articles d'habillement ou comme produits à usage domestique et a pour objet un dispositif absorbant et désorbant.The present invention relates to the field of materials absorbents, in particular used as articles of clothing or as products for household purposes and relates to an absorbent device and desorbent.

L'absorption de l'humidité, en particulier des exsudats ou des projections d'eau dans le cadre domestique constitue un problème permanent. En effet, cette absorption, qui est généralement réalisée au moyen de tissus particulièrement absorbants, nécessite de procéder à des changements fréquents desdits produits absorbants, en vue de leur nettoyage et de leur séchage.Absorption of moisture, particularly exudates or splashing water in the home environment is a problem permanent. Indeed, this absorption, which is generally carried out at medium of particularly absorbent tissues, requires frequent changes of said absorbent products, with a view to their cleaning and drying.

Ce problème est particulièrement important dans le cas de transpiration excessive, appelée hyperidrose, et notamment en ce qui concerne la transpiration par les pieds. Dans ce dernier cas, la transpiration est largement accentuée, voire aggravée par le port de chaussures. La vie quotidienne devient alors parfois difficile pour le porteur de chaussures obligé de lutter contre la transpiration et les effets quelquefois dévastateur de celle-ci.This problem is particularly important in the case of excessive sweating, known as hyperidrosis, and particularly with regard to relates to perspiration by the feet. In the latter case, perspiration is greatly accentuated, even aggravated by wearing shoes. Life daily becomes sometimes difficult for the wearer of shoes obliged to fight against sweating and sometimes devastating effects of it.

Les pratiquants sportifs sont largement exposés aux effets de la transpiration, du fait même du port de chaussures souvent assez hermétiques pendant de longues périodes.Sports practitioners are largely exposed to the effects of perspiration, because of the fact that shoes are often worn hermetic for long periods.

Pour obvier à ces inconvénients, il a été proposé diverses améliorations des chaussures, notamment par utilisation de matériaux légers, en particulier de mousses performantes pour amortir les micro-traumatismes et par mise en oeuvre de circulation d'air dans la structure même de la chaussure. Cependant, ces différentes améliorations n'ont pas permis de limiter l'hypersudation et d'améliorer l'intérieur même de la chaussure, à savoir la semelle de propreté.To obviate these disadvantages, it has been proposed various shoe improvements, including the use of materials lightweight, particularly high-performance foams to dampen micro-trauma and by implementing air circulation in the structure even of the shoe. However, these different improvements have not allowed to limit the sweating and improve the very interior of the shoe, namely the insole.

Il a également été proposé de rajouter des semelles appelées "anti-transpirantes", dont l'efficacité est toutefois bien souvent très limitée.It has also been proposed to add soles called "antiperspirant", whose effectiveness is however very often very limited.

Le problème de l'hypersudation ou hyperidrose a également été traité par mise en oeuvre de produits à appliquer directement sur la peau tels que des gels, des sprays, des poudres ou autres préparations magistrales, ou encore par vaporisation de produits anti-mycosiques et antibactériens directement dans les chaussures. Cependant, tous ces procédés de traitement n'ont été que d'une très faible efficacité.The problem of hypersudation or hyperidrosis has also been treated by using products to be applied directly to the skin, such as that gels, sprays, powders or other magistral preparations, or still by vaporization of anti-mycotic and antibacterial products directly in the shoes. However, all these methods of treatment have been only very weak.

Il a également été proposé de réaliser des semelles au charbon actif, en cuir ou en fibres synthétiques, qui présentent de bonnes capacités d'absorption de l'humidité et de lutte contre les odeurs. Toutefois, lorsque la capacité de saturation est atteinte, l'humidité reste prisonnière de la chaussure et entraíne une macération favorable à une prolifération bactérienne et à la rétention des odeurs.It has also been proposed to make charcoal soles active, made of leather or synthetic fibers, which have good moisture absorption and odor control. However, when saturation capacity is reached, moisture remains trapped in the shoe and leads to a maceration conducive to proliferation bacterial and odor retention.

Une semelle absorbante et désorbante est dévoilée dans EP-A-0 498 865.An absorbent and desorbent sole is disclosed in EP-A-0 498 865.

Le problème de l'absorption d'humidité est également très crucial dans le cadre domestique, où il est souvent nécessaire de réaliser une absorption rapide de projection d'eau, en particulier dans les salles d'eau, par exemple au moyen des tapis de bain ou analogues. Dans de tels cas, les moyens d'absorption sont très rapidement saturés et une utilisation de ces moyens à long terme, sans séchage spécifique après une forte absorption ne peut pas être envisagée. En effet, le maintien d'un tapis de bain fortement imprégné d'humidité entraínerait inévitablement une impossibilité de ce tapis à sécher rapidement et sa détérioration avec un développement simultané de micro-organismes indésirables et néfastes pour la santé.The problem of moisture absorption is also very crucial in the domestic context, where it is often necessary to carry out a rapid absorption of water spray, especially in bathrooms, for example by means of bath mats or the like. In such cases, means of absorption are very quickly saturated and a use of these long-term means, without specific drying after strong absorption can not be considered. Indeed, maintaining a bath mat strongly impregnated with moisture would inevitably lead to an impossibility of carpet to dry quickly and its deterioration with development concurrent microorganisms undesirable and harmful to health.

La présente invention a pour but de pallier ces inconvénients en proposant un dispositif absorbant et désorbant permettant, d'une part, une absorption rapide et efficace de toute humidité, en particulier d'une transpiration excessive ou d'une projection d'eau et, d'autre part, une désorption rapide de l'humidité accumulée évitant toutes formations mycosiques ou bactériennes indésirablesThe present invention aims to overcome these disadvantages by providing an absorbent and desorbent device allowing, on the one hand, a fast and efficient absorption of any moisture, especially excessive sweating or splashing of water and, on the other hand, a rapid desorption of accumulated moisture avoiding all formations mycotic or unwanted bacterial

A cet effet, le dispositif absorbant et désorbant conforme à l'invention comprend les caractéristiques de la revendication 1.For this purpose, the absorbent and desorbent device according to the invention comprises the features of claim 1.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à des modes de réalisation préférés, donnés à titre d'exemples non limitatifs, et expliqués avec référence au dessin schématique annexé, dans lequel :

  • la figure 1 est une vue éclatée en perspective d'un dispositif conforme à l'invention sous forme de semelle, et
  • la figure 2 est une vue analogue à celle de la figure 1 d'un dispositif sous forme de tapis de bain.
    • The invention will be better understood, thanks to the following description, which relates to preferred embodiments, given by way of non-limiting examples, and explained with reference to the appended schematic drawing, in which:
  • FIG. 1 is an exploded perspective view of a device according to the invention in the form of a sole, and
  • Figure 2 is a view similar to that of Figure 1 of a device in the form of bath mat.

    • Les figures 1 et 2 des dessins annexés représentent un dispositif absorbant et désorbant qui est essentiellement constitué par au moins une membrane micro poreuse à propriétés absorbantes et désorbantes 1, par au moins un revêtement poreux perméable 2 et par au moins une sous-couche amortissante imperméable, essentiellement à cellules fermées.Figures 1 and 2 of the accompanying drawings show a device absorbent and desorbent which essentially consists of at least one microporous membrane with absorbent and desorbent properties 1, by less a permeable porous coating 2 and at least one underlayer damping impermeable, essentially closed cell.

    La membrane micro poreuse à propriétés absorbantes et désorbantes 1 est perméable à tous les fluides sur ses deux faces. Une telle membrane 1 est avantageusement à base d'une polyoléfine micro poreuse du type polyéthylène à ultra haute densité chargée de silice, telle que connue notamment par EP-A-0 892 647.The microporous membrane with absorbent properties and Desorbent 1 is permeable to all fluids on both sides. Such a membrane 1 is advantageously based on a microporous polyolefin of the ultra-high density polyethylene type loaded with silica, such as known in particular from EP-A-0 892 647.

    Cette membrane, dont la porosité est supérieure à 60 %, présente un très fort pouvoir absorbant et désorbe très rapidement, de sorte qu'un retour aux caractéristiques initiales du produit peut être obtenu en moins de deux heures. En outre, le matériau constituant cette membrane 1 présente une bonne capacité d'absorption des chocs, évite ainsi l'effet des microtraumatismes et accroít le confort lors de la marche et de la pratique sportive. De plus, cette membrane, qui peut être découpée très facilement et qui reste indéformable même après un usage intensif, est d'entretien très facile, pouvant être lavée à l'eau et au savon, et participe très efficacement à la lutte contre les infections mycosiques et bactériennes, du fait que celles-ci peuvent se développer de manière beaucoup plus difficile en milieu sec qu'en milieu humide.This membrane, whose porosity is greater than 60%, has a very high absorbency and desorbs very quickly, so that a return to the initial characteristics of the product can be obtained by less than two hours. In addition, the material constituting this membrane 1 has a good shock absorbing capacity, thus avoiding the effect of microtrauma and increase comfort when walking and practicing athletic. In addition, this membrane, which can be cut very easily and which remains indeformable even after intensive use, is very easy, can be washed with soap and water, and participates very effectively in the fight against mycotic and bacterial infections, as these can develop much more difficult in a dry environment than in a humid environment.

    Selon une caractéristique de l'invention, la membrane micro poreuse à propriétés absorbantes et désorbantes 1 peut être pourvue de rainures formant des canaux d'évacuation de l'humidité.According to one characteristic of the invention, the micro-membrane porous having absorbing and desorbent properties 1 may be provided with grooves forming channels for evacuation of moisture.

    Le revêtement poreux perméable 2 peut être constitué, dans un cas d'utilisation du dispositif comme semelle de chaussure, soit sous forme d'un revêtement textile tissé, non tissé ou synthétique, ce revêtement étant muni de micro-perforations ou étant fortement poreux et présentant de bonnes propriétés de séchage (figure 1). Un tel revêtement poreux 2 est essentiellement destiné à permettre un contact confortable avec la partie supérieure du dispositif et doit être facilement perméable à l'eau et à l'air, afin de permettre le passage aisé et rapide des liquides vers la membrane 1 et la désorption rapide de la membrane 1 disposée sous ce revêtement poreux 2. The permeable porous coating 2 may consist, in a use of the device as shoe sole, either in the form a woven, non-woven or synthetic textile coating, this coating being with micro-perforations or being highly porous and presenting good drying properties (Figure 1). Such a porous coating 2 is essentially intended to allow a comfortable contact with the party upper part of the device and must be easily permeable to water and air, to allow the easy and quick passage of liquids to the membrane 1 and the rapid desorption of the membrane 1 disposed under this coating porous 2.

    Dans le cas d'utilisation du dispositif sous forme d'un tapis de bain, par exemple, le revêtement poreux perméable 2 peut avantageusement être constitué par un tissu ou un non tissé de recouvrement à forte porosité et à faible capacité d'absorption d'eau. En effet, dans un tel cas, il est nécessaire que l'essentiel de l'humidité pénètre rapidement dans la membrane micro poreuse 1 et que lors de la désorption, l'humidité puisse s'évaporer rapidement sans être retenue par le revêtement 2, ce dernier devant évidemment sécher très rapidement.In the case of using the device in the form of a carpet of bath, for example, the permeable porous coating 2 can advantageously be constituted by a fabric or a non-woven covering with high porosity and low water absorption capacity. Indeed, in such a case, it is necessary that most of the moisture gets into the micro porous membrane 1 and that during desorption, the moisture can evaporate quickly without being retained by the coating 2, the latter obviously having to dry very quickly.

    La sous-couche amortissante imperméable 3 est avantageusement percée de trous suffisamment grands et nombreux pour permettre l'évacuation de l'humidité par le dessous par évaporation. Selon une variante de réalisation de l'invention, la sous-couche amortissante imperméable 3 peut également ne pas être pourvue de trous, lorsque la membrane micro poreuse 1 est munie de rainures formant des canaux d'évacuation de l'humidité.The waterproof damping underlayer 3 is advantageously pierced with sufficiently large and numerous holes for allow evacuation of moisture from below by evaporation. according to an alternative embodiment of the invention, the damping sub-layer waterproof 3 may also not be provided with holes when the porous micro membrane 1 is provided with grooves forming channels evacuation of moisture.

    La sous-couche amortissante imperméable 3 peut être constituée par une mousse d'un copolymère éthylène / acétate de vinyle microperforée et de faible épaisseur, à savoir de l'ordre de 2 mm dans le cas d'une semelle. Une telle mousse permet simultanément d'assurer un amortissement des micro-traumatismes lors des appuis sur le dispositif, par exemple au cours de la marche, et un échange d'air avec la membrane micro poreuse 1, en particulier à partir de la face inférieure du dispositif, pour favoriser la désorption, lorsque ledit dispositif n'est plus chargé.The waterproof damping underlayer 3 can be consisting of a foam of an ethylene / vinyl acetate copolymer microperforated and thin, namely of the order of 2 mm in the case of a sole. Such a foam simultaneously makes it possible to ensure damping of micro-trauma during support on the device, by example during walking, and an air exchange with the micro membrane porous 1, in particular from the underside of the device, for promote desorption, when said device is no longer loaded.

    La mousse constituant la sous-couche micro poreuse imperméable 3 présente de bonnes propriétés mécaniques à la traction au déchirement et à l'abrasion, ainsi que de bonnes propriétés dynamiques de résilience et de résistance à la flexion. En outre, une telle mousse est peu sensible au vieillissement dû à l'air, à la lumière, à l'ozone et à la chaleur et résiste bien aux agressions du froid et au feu. De plus, cette mousse a une bonne tenue aux fluides, tels que les huiles, les solvants, les cétones, les acides, les gaz et l'eau.The foam constituting the microporous sub-layer 3 has good mechanical tensile properties at tearing and abrasion, as well as good dynamic properties of resilience and flexural strength. In addition, such a foam is little sensitive to aging due to air, light, ozone and heat and resists cold aggression and fire. In addition, this foam has a good resistance to fluids, such as oils, solvents, ketones, acids, gases and water.

    Les éléments constitutifs du dispositif absorbant et désorbant conforme à l'invention peuvent être assemblés entre eux en un sandwich fonctionnel par couture ou par collage.The constituent elements of the absorbent and desorbent device according to the invention can be assembled together in a sandwich functional by sewing or gluing.

    Dans le cas d'une couture, celle-ci est effectuée sur tout le pourtour du dispositif avec prévision de lignes de couture supplémentaires entre la couture de pourtour, suivant des diagonales et/ou des transversales et/ou des longitudinales. De telles lignes de couture supplémentaires sont nécessaires pour éviter l'apparition de plis provoquant une gêne lors d'un appui sur le dispositif, par exemple lors de la marche, de sorte que le revêtement poreux perméable 2 s'userait rapidement.In the case of a sewing, it is performed on all the circumference of the device with provision for additional seam lines between the edge seam, following diagonals and / or transversals and / or longitudinal. Such additional seam lines are necessary to prevent the appearance of wrinkles causing discomfort during a support on the device, for example when walking, so that the permeable porous coating 2 would wear out quickly.

    Dans le cas d'un assemblage par collage, celui-ci est avantageusement effectué par collage par points ou par thermocollage au moyen d'un produit thermocollant 4 présentant une structure maillée et interposé, de part et d'autre de la membrane micro poreuse 1, respectivement entre le revêtement poreux 2 et la membrane micro poreuse 1 et entre cette membrane 1 et la sous-couche amortissante imperméable 3 (figures 1 et 2). Un tel produit collant est notamment disponible en bandes déposées sur un support de transfert, l'ensemble étant enroulé en bobines.In the case of an assembly by gluing, this one is advantageously carried out by spot bonding or heat sealing at medium of a fusible product 4 having a mesh structure and interposed on either side of the microporous membrane 1, between the porous coating 2 and the microporous membrane, respectively 1 and between this membrane 1 and the impervious damping underlayer 3 (Figures 1 and 2). Such a sticky product is especially available in strips deposited on a transfer medium, the assembly being wound into coils.

    Le produit thermocollant présente un maillage tel qu'il occupe une très faible partie de la surface totale de la membrane micro poreuse 1 et, de préférence, environ 12 % de cette surface, de sorte que les capacités, d'une part, de transmission de l'humidité à travers le revêtement poreux perméable 2 vers la membrane 1 et, d'autre part, d'évaporation de l'humidité à partir de la membrane 1 à travers le revêtement poreux perméable 2, sont maintenus de manière optimale. Cette propriété est également mise à profit pour assurer une possibilité de circulation d'air entre la face inférieure de la membrane 1 et la sous-couche amortissante imperméable 3.The fusible product has a mesh as it occupies a very small part of the total surface of the microporous membrane 1 and, preferably about 12% of this area, so that the capabilities, on the one hand, moisture transmission through the porous coating permeable 2 to membrane 1 and, on the other hand, evaporation of moisture from the membrane 1 through the permeable porous coating 2, are maintained optimally. This property is also used to ensure a possibility of air circulation between the underside of the membrane 1 and the waterproof damping underlayer 3.

    Un assemblage par thermocollage permet de garantir une liaison parfaite entre les éléments 1 à 3 constitutifs du dispositif conforme à l'invention.An assembly by heat-sealing makes it possible to guarantee a perfect connection between the elements 1 to 3 constituting the device according to the invention.

    Selon une caractéristique de l'invention, le dispositif absorbant et désorbant peut se présenter sous forme d'une semelle à insérer dans une chaussure ou sous forme d'une semelle intégrée de manière permanente dans une chaussure et constituant la première de montage ou semelle de propreté de la chaussure.According to one characteristic of the invention, the absorbing device and desorbent may be in the form of a soleplate to be inserted into a shoe or in the form of an insole permanently in a shoe and constituting the first mounting or sole of cleanliness of the shoe.

    Conformément à une autre caractéristique de l'invention, le dispositif absorbant et désorbant peut être pourvu, par revêtement, par pulvérisation ou autre, d'une ou de plusieurs couches d'agents anti-bactériens et/ou fongicides. La prévision de telles couches supplémentaires peut permettre de répondre à des exigences sévères de prévention de disséminations bactériennes ou mycosiques, notamment dans les domaines de la dermatologie, la diabétologie, en ce qui concerne la semelle et l'hôtellerie, la balnéothérapie et, d'une manière générale, lieux publics en ce qui concerne le tapis de bain.According to another characteristic of the invention, the absorbent and desorbent device may be provided, by coating, by spraying or otherwise, one or more layers of anti-bacterial agents and / or fungicides. The forecast of such additional layers can meet the strict requirements of prevention of bacterial or mycotic spreads, particularly in the of dermatology, diabetology, with regard to the sole and hotels, balneotherapy and, in general, public places which concerns the bath mat.

    Le dispositif conforme à l'invention permet de répondre de manière particulièrement efficace aux problèmes posés par les besoins d'absorption rapide d'humidité, notamment résultant de l'hypersudation. Ce dispositif peut être réutilisé très rapidement, de manière efficace, du fait de son pouvoir de désorption rapide lui permettant un retour aux caractéristiques de départ en un temps très court.The device according to the invention makes it possible to answer particularly effective way of addressing needs rapid absorption of moisture, especially resulting from excessive sweating. This device can be reused very quickly, efficiently, because of its fast desorption power allowing it a return to starting characteristics in a very short time.

    De plus, du fait de sa porosité, le dispositif conforme à l'invention peut assurer une fonction d'isolation, aussi bien de la chaleur que du froid.In addition, because of its porosity, the device complies with the invention can provide an insulation function, both of heat and cold.

    Enfin, du fait que ce dispositif attire l'humidité pour la dissiper ensuite dans l'air, il respecte notamment la transpiration physiologique, contrairement aux traitements anti-sudoreaux locaux, lorsqu'il est utilisé comme semelle dans un article chaussant.Finally, because this device attracts moisture to dissipate it then in the air, it respects in particular the physiological perspiration, unlike local anti-sweat treatments, when used as a sole in an article of footwear.

    Des études cliniques ont démontré que l'utilisation du dispositif conforme à l'invention, sous forme d'une semelle dans des chaussures permet de résoudre avec satisfaction pratiquement tous les problèmes liés, soit à la transpiration dans des chaussures de sport pendant la pratique, soit à l'hyperidrose.Clinical studies have shown that the use of the device according to the invention, in the form of a sole in shoes solves with satisfaction virtually all related problems, sweat in sports shoes during practice or to hyperidrosis.

    En outre, le dispositif conforme à l'invention ne constitue aucun terrain favorable à des développements d'allergies, aucun composant allergisant n'entrant dans sa constitution.In addition, the device according to the invention does not constitute any favorable terrain for allergy developments, no component allergenic being part of its constitution.

    Enfin, le dispositif permet une régression de certains troubles trophiques, tels que les mycoses ou les eczémas, le facteur aggravant de ces troubles étant toujours une humidité permanente.Finally, the device allows a regression of certain disorders such as mycoses or eczema, the aggravating factor of these troubles always being a permanent moisture.

    Grâce à l'invention, il est possible de réaliser un dispositif permettant d'absorber rapidement et efficacement une humidité importante et de désorber, également rapidement, ladite humidité, dès la disparition de la source humide.Thanks to the invention, it is possible to produce a device to quickly and effectively absorb significant moisture and to desorb, also quickly, said moisture, as soon as the the wet spring.

    Ce dispositif est plus particulièrement applicable sous forme de semelle pour chaussure ; semelle à insérer ou semelle première, mais est également applicable dans d'autres domaines, notamment domestiques, par exemple, pour l'absorption rapide de projections et pour une désorption correspondante, permettant une utilisation prolongée du moyen d'absorption et non un remplacement systématique de celui-ci avec les frais de lavage et de séchage correspondant. This device is more particularly applicable in the form of shoe sole; insole insert or sole first but is also applicable in other areas, including domestic, by example, for rapid absorption of projections and for desorption corresponding, allowing a prolonged use of the means of absorption and not a systematic replacement of it with the expense of washing and corresponding drying.

    Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés au dessin annexé. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments, sans sortir pour autant du domaine de protection de l'invention qui est défini par les revendications.Of course, the invention is not limited to the modes of embodiment described and shown in the accompanying drawing. Modifications remain possible, particularly from the point of view of the constitution of the various elements, without going out for as much of the protection field of the invention which is defined by the claims.

    Claims (13)

    1. Absorbent and desorbent device, characterised in that it substantially consists of at least one microporous membrane (1) with absorbent and desorbent properties, of at least one permeable porous covering (2) covering said microporous membrane (1) and of at least one impermeable cushioning sub-layer (3), substantially comprising closed cells, arranged under the microporous membrane (1), these various constituent elements being assembled in a functional sandwich formation by stitching or gluing.
    2. Device according to claim 1, characterised in that the microporous membrane (1) with absorbent and desorbent properties is permeable to all the fluids on its two surfaces.
    3. Device according to any one of claims 1 and 2, characterised in that the microporous membrane (1) with absorbent and desorbent properties is based on a microporous polyolefin of the ultra-high-density polyethylene type loaded with silica.
    4. Device according to claim 1, characterised in that the microporous membrane (1) with absorbent and desorbent properties is provided with grooves forming channels for evacuating moisture.
    5. Device according to claim 1, characterised in that the permeable porous covering (2) consists of a woven, non-woven or synthetic textile covering and has good drying properties.
    6. Device according to claim 1, characterised in that the permeable porous covering (2) consists of a woven or non-woven covering fabric capable of rapidly transferring liquids toward the absorbent membrane (1) and having a low water absorption capacity.
    7. Device according to claim 1, characterised in that the impermeable sub-layer (3) is pierced with holes sufficiently large and numerous to allow moisture to be evacuated from below by evaporation.
    8. Device according to claim 1, characterised in that the impermeable microporous sub-layer (3) consists of a perforated foam of an ethylene/vinyl acetate copolymer.
    9. Device according to claim 1, characterised in that the stitching is carried out over the entire periphery of the device with the provision of supplementary stitch lines between the peripheral stitching, along diagonal and/or transverse and/or longitudinal lines.
    10. Device according to claim 7, characterised in that the gluing is carried out by spot gluing or by spot thermobonding by means of a thermobonding product (4) having a mesh structure and interposed on either side of the microporous membrane (1), between the porous covering (2) and the microporous membrane (1) and between this membrane (1) and the impermeable cushioning sub-layer (3) respectively.
    11. Device according to claim 10, characterised in that the thermobonding product has a mesh such that it occupies a very small portion of the total surface area of the microporous membrane (1) and, preferably, approximately 12 % of this surface area.
    12. Device according to claim 1, characterised in that it is in the form of a sole to be inserted into a shoe or in the form of a sole permanently integrated in a shoe and constituting the primary fitting or sanitary sole of the shoe.
    13. Device according to claim 1, characterised in that it is provided, by covering, by spraying or the like, with one or more layers of antibacterial and/or fungicidal agents.
    EP02732800A 2001-04-11 2002-04-10 Absorbent and desorbent device Expired - Lifetime EP1383403B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    FR0104985A FR2823424B1 (en) 2001-04-11 2001-04-11 ABSORBENT AND DESORBENT DEVICE
    FR0104985 2001-04-11
    PCT/FR2002/001259 WO2002082937A1 (en) 2001-04-11 2002-04-10 Absorbent and desorbent device

    Publications (2)

    Publication Number Publication Date
    EP1383403A1 EP1383403A1 (en) 2004-01-28
    EP1383403B1 true EP1383403B1 (en) 2005-11-23

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02732800A Expired - Lifetime EP1383403B1 (en) 2001-04-11 2002-04-10 Absorbent and desorbent device

    Country Status (9)

    Country Link
    US (1) US20040168355A1 (en)
    EP (1) EP1383403B1 (en)
    JP (1) JP2004528086A (en)
    CN (1) CN1251628C (en)
    AT (1) ATE310409T1 (en)
    DE (1) DE60207543T2 (en)
    ES (1) ES2251593T3 (en)
    FR (1) FR2823424B1 (en)
    WO (1) WO2002082937A1 (en)

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    Also Published As

    Publication number Publication date
    JP2004528086A (en) 2004-09-16
    DE60207543D1 (en) 2005-12-29
    EP1383403A1 (en) 2004-01-28
    WO2002082937A1 (en) 2002-10-24
    FR2823424B1 (en) 2004-10-08
    CN1251628C (en) 2006-04-19
    FR2823424A1 (en) 2002-10-18
    CN1516558A (en) 2004-07-28
    US20040168355A1 (en) 2004-09-02
    DE60207543T2 (en) 2006-08-10
    ES2251593T3 (en) 2006-05-01
    ATE310409T1 (en) 2005-12-15

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