EP1146164A2 - Physico-chemical antiscaling device with a grid, for an iron - Google Patents

Physico-chemical antiscaling device with a grid, for an iron Download PDF

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Publication number
EP1146164A2
EP1146164A2 EP01420068A EP01420068A EP1146164A2 EP 1146164 A2 EP1146164 A2 EP 1146164A2 EP 01420068 A EP01420068 A EP 01420068A EP 01420068 A EP01420068 A EP 01420068A EP 1146164 A2 EP1146164 A2 EP 1146164A2
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EP
European Patent Office
Prior art keywords
grid
steam
iron
steam iron
iron according
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.)
Granted
Application number
EP01420068A
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German (de)
French (fr)
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EP1146164B1 (en
EP1146164A3 (en
Inventor
Herbert Horn
Edgar Hipp
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Rowenta Werke GmbH
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Rowenta Werke GmbH
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Publication of EP1146164A3 publication Critical patent/EP1146164A3/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • D06F75/18—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron the water being fed slowly, e.g. drop by drop, from the reservoir to a steam generator

Definitions

  • the present invention relates to steam irons where vaporization occurs from almost instantly. These devices have a lifetime limited by scaling of the vaporization chamber.
  • Patent FR2757364 describes an embodiment of such a device where the diffusion of highly soluble sodium hexametaphosphate (HMPS) is controlled by a silicone matrix placed in the water circuit.
  • HMPS highly soluble sodium hexametaphosphate
  • the particles could be retained in the vaporization chamber by a metal screen as suggested in patent DE3006783 or the patent JP60160999. Sifting can also occur in a version of the patent FR2696197 where a grid intended to improve the vaporization has its edges raised in the shape of a basin.
  • a screening screen alone eventually causes blockage of the vaporization chamber with very large scale hard that does not drain.
  • the invention below relates to an anti-tartar device extending the duration of life of a steam iron by allowing regular evacuation of scale under a powder form invisible to the user, and avoiding blockage of the chamber as well as iron vaporization channels.
  • a steam iron having a circuit of water at least one compartment of which contains an anti-scale agent obtained by crosslinking or curing in an silicone elastomer of an organo system water vapor permeable silica comprising a hydrophilic active material and a polyorganosiloxane composition, the iron further comprising, near of the vaporization zone of a chamber formed in a heating body metallic, a grid, metallic in nature different from that of the body of heating, crossed by the steam flow.
  • hydrophilic active material is chosen from metaphosphates sodium or potassium.
  • the grid is mounted clamped between two walls of the vaporization of the iron.
  • the grid is coated with a layer of gold.
  • This layer protects the grid by making it stainless. We also see that it generates a large potential difference with a heating body in aluminum.
  • the grid is made of stainless steel.
  • the grid is protected from oxidation phenomena and creates a difference potential with an aluminum heating body.
  • the grid is made of expanded metal.
  • This arrangement helps break up the scale that comes to settle on or against the grid.
  • the anti-scale agent is contained in a tube and releases its material activated by at least one open end of the tube.
  • the silicone matrix can be molded into the tube without requiring any other mold.
  • the active material is released with kinetics of order one by a progressive front of cracks in the matrix which corresponds to the section of the tube and which is therefore perfectly controlled.
  • the tube containing the anti-scale agent is placed in the tank iron water.
  • the anti-scale agent may be in sufficient quantity to ensure good operation during the life of the iron, or can be interchangeable.
  • the disposal in the tank constitutes a simplification made possible by the molding in a tube.
  • Figure 1 is a simplified longitudinal section of an iron according to the invention.
  • Figure 2 is a simplified top view of the soleplate of an iron according to the invention.
  • the iron shown in Figure 1 comprises a sole 1 having a vaporization chamber 2, a reservoir 3 of water to vaporize, a drip system 4 allowing the supply of water from the vaporization chamber 2 from the reservoir 3, and an envelope 5 comprising an iron handling handle.
  • the reservoir 3 formed of two parts 300 and 301 assembled has an orifice filling 302 closed by a sliding cover 303. Inside this tank is arranged a tubular element 304 of constant section in which is molded a silicone elastomeric matrix 305 containing sodium hexametaphosphate (HMPS) in solid dispersion. This tube whose ends are open and reveal the silicone matrix 305 is placed so as to be wetted by the water contained in the tank.
  • HMPS sodium hexametaphosphate
  • the sole 1 has an aluminum heating body 100 which forms the walls from the vaporization chamber 2, a resistive tubular heating element 101, a closure plate 102 of the vaporization chamber 2, a cover 103 at thermal contact with the heating body 100 and intended to be in contact with the linen ironed on its outside with the iron.
  • the vaporization chamber 2 has a zone 200 more visible in FIG. 2 where the drop of the water drops.
  • the spray area widens on the dish of the sole in a region 201.
  • This vaporization zone is closed by ribs 202 and by a grid 203 preferably made of plated expanded metal of a thin layer of gold.
  • the grid 203 is mounted clamped between the plate closure 102 and the bottom of the vaporization chamber 2, so that the contact electric is provided between the plate 102, the grid 203 and the heating body 100. A potential difference is established between the grid 203 and the heating body 100, as a result of different metallic natures.
  • the grid has a mesh width of between 0.3 and 3 millimeters, the section of the mesh son preferably being angular, namely triangular, square or rectangular.
  • the grid is made of a metallic material different from that the vaporization chamber, in particular stainless steel, if desired covered with a layer of gold between 10 ⁇ and 100 ⁇ thick.
  • the bottom of the vaporization chamber 2 is covered by a anti-heat coating.
  • the steam produced can escape through passages 206 and channels 204 to vaporization holes such as 205 which lead to the ironed linen directly or via other channels of distribution located under the soleplate.
  • the silicone matrix 305 diffuses only very little hexametaphosphate by its free ends, even if the silicone matrix 305 is wet.
  • the user fills the water tank 3 with the orifice 302, the opening of which it closes with the cover 303.
  • the iron being hot, the tank rises to a moderate temperature but sufficient to accelerate strongly the diffusion of HMPS in water, the vapor diffusing towards the grains of highly hydrophilic HMPS which take up water, swell and break the network silicone.
  • the diffusion front of HMPS progresses slowly in the matrix in the axis of the tube along its constant section, and the diffusion is well controlled.
  • the length and the section of the tube are provided to ensure the diffusion of anti-scale product during the lifetime of the iron.
  • the tube and its silicone matrix are interchangeable.
  • the large scale left by the vaporization of water is in the form pulverulent thanks to the action of the HMPS and is partially evacuated by the steam.
  • HMPS is replaced by another phosphorus product hydrophilic.
  • the tartar is evacuated regularly invisibly and without disadvantage for the user.
  • the life of the iron is increased by the anti-scaling hydrophilic product, without this product causing such disadvantages only stains marking the ironed laundry.

Abstract

Steam iron, contains scale inhibitor of silicone elastomer produced by hardening water vapor permeable-organosilicon compound with hydrophilic active substance and polyorganosiloxane composition in (part of) water channel. In a steam iron, at least part of the water channel contains a scale inhibitor of silicone elastomer, produced by crosslinking or hardening a water vapor permeable-organosilicon compound with a hydrophilic active substance and a polyorganosiloxane composition. Near the vaporization zone of a steam chamber with a metal heating element, the iron has a grid through which the steam flows, consisting of a metal differing from that of the sole plate.

Description

La présente invention concerne les fers à vapeur où la vaporisation se produit de façon quasi instantanée. Ces appareils ont une durée de vie limitée par l'entartrage de la chambre de vaporisation.The present invention relates to steam irons where vaporization occurs from almost instantly. These devices have a lifetime limited by scaling of the vaporization chamber.

De nombreux dispositifs ont été décrits pour diminuer l'entartrage du fer. Parmi ceux ci un des systèmes physico-chimiques les plus performants consiste à diffuser un produit phosphoré dans l'eau avant sa vaporisation pour empêcher la cristallisation du tartre sous une forme dure et permettre son évacuation par le flux de vapeur. Le brevet FR2757364 décrit un mode de réalisation d'un tel dispositif où la diffusion d'hexamétaphosphate de sodium (HMPS) très soluble est contrôlée par une matrice silicone placée dans le circuit d'eau. Cependant sous l'action de la vapeur on constate que le tartre s'agglomère partiellement et se détache en paillettes, friables certes, mais qui s'évacuent par paquets en marquant le linge.Many devices have been described for reducing the scaling of iron. Among one of the most efficient physico-chemical systems consists in diffuse a phosphorus product in water before its vaporization to prevent the crystallization of tartar in a hard form and allow its evacuation by the steam flow. Patent FR2757364 describes an embodiment of such a device where the diffusion of highly soluble sodium hexametaphosphate (HMPS) is controlled by a silicone matrix placed in the water circuit. However under the action of steam we see that the tartar partially agglomerates and comes off in flakes, certainly brittle, but which are evacuated in bundles in marking the laundry.

Les particules pourraient être retenues dans la chambre de vaporisation par un tamis métallique comme suggéré dans le brevet DE3006783 ou le brevet JP60160999. Un tamisage peut également se produire dans une version du brevet FR2696197 où une grille destinée à améliorer la vaporisation a ses bords relevés en forme de bassin. Cependant l'utilisation d'une grille de tamisage seule provoque à terme l'obstruction de la chambre de vaporisation par du tartre très dur qui ne s'évacue pas.The particles could be retained in the vaporization chamber by a metal screen as suggested in patent DE3006783 or the patent JP60160999. Sifting can also occur in a version of the patent FR2696197 where a grid intended to improve the vaporization has its edges raised in the shape of a basin. However, the use of a screening screen alone eventually causes blockage of the vaporization chamber with very large scale hard that does not drain.

L'invention ci après a pour objet un dispositif anti tartre prolongeant la durée de vie d'un fer à vapeur en permettant l'évacuation régulière du tartre sous une forme de poudre invisible pour l'utilisateur, et évitant l'obstruction de la chambre ainsi que des canaux de vaporisation du fer.The invention below relates to an anti-tartar device extending the duration of life of a steam iron by allowing regular evacuation of scale under a powder form invisible to the user, and avoiding blockage of the chamber as well as iron vaporization channels.

Principalement l'objet de l'invention est atteint par un fer à vapeur ayant un circuit d'eau dont au moins un compartiment contient un agent anti tartre obtenu par réticulation ou durcissement en un élastomère silicone d'un système organo silicique perméable à la vapeur d'eau comportant une matière active hydrophile et une composition polyorganosiloxane, le fer comportant en outre, à proximité de la zone de vaporisation d'une chambre formée dans un corps de chauffe métallique, une grille, de nature métallique différente de celle du corps de chauffe, traversée par le flux de vapeur.Mainly the object of the invention is achieved by a steam iron having a circuit of water at least one compartment of which contains an anti-scale agent obtained by crosslinking or curing in an silicone elastomer of an organo system water vapor permeable silica comprising a hydrophilic active material and a polyorganosiloxane composition, the iron further comprising, near of the vaporization zone of a chamber formed in a heating body metallic, a grid, metallic in nature different from that of the body of heating, crossed by the steam flow.

De préférence la matière active hydrophile est choisie parmi les métaphosphates de sodium ou de potassium.Preferably the hydrophilic active material is chosen from metaphosphates sodium or potassium.

On constate qu'aucune paillette visible ne sort par les trous de vaporisation de la semelle même quand la grille présente des trous d'un diamètre hydraulique de l'ordre de deux millimètres. De façon surprenante le tartre ne s'accumule pas dans la chambre de vaporisation, ni dans les canaux de vaporisation.It can be seen that no visible flake comes out of the vaporization holes of the sole even when the grid has holes with a hydraulic diameter of around two millimeters. Surprisingly, tartar does not accumulate in the vaporization chamber, or in the vaporization channels.

De préférence la grille est montée serrée entre deux parois de la chambre de vaporisation du fer à repasser.Preferably the grid is mounted clamped between two walls of the vaporization of the iron.

Le processus qui permet au tartre de se présenter sous forme très fine et non visible à la sortie du fer n'est pas expliqué clairement. On peut penser simplement que les paillettes friables qui se détachent de la zone de vaporisation sont retenues et frottent contre la grille ce qui les brise. On peut penser que le tartre qui se dépose sur ou contre la grille se brise par suite des dilatations et contractions thermiques de la grille. On peut penser aussi à un phénomène inconnu résultant de la différence de potentiel électrique causée par les natures métalliques différentes du corps de chauffe, donc de la chambre de vaporisation et de la grille. Cette différence de potentiel pourrait s'exercer grâce à la liaison électrique due au serrage de la grille dans le corps de chauffe.The process which allows the tartar to appear in very fine form and not visible at the exit of the iron is not clearly explained. One can think just that the flaky flakes coming off the spray area are retained and rub against the grid which breaks them. One can think that the scale which deposits on or against the grid breaks due to expansion and thermal contractions of the grid. We can also think of a phenomenon unknown resulting from the difference in electrical potential caused by natures different from the heating body, therefore from the vaporization chamber and the grid. This difference in potential could be exerted thanks to the link electric due to the clamping of the grid in the heating body.

De préférence la grille est revêtue d'une couche d'or.Preferably the grid is coated with a layer of gold.

Cette couche protège la grille en la rendant inoxydable. On constate aussi qu'elle engendre une grande différence de potentiel avec un corps de chauffe en aluminium.This layer protects the grid by making it stainless. We also see that it generates a large potential difference with a heating body in aluminum.

Dans une autre version la grille est en acier inoxydable.In another version, the grid is made of stainless steel.

La grille est protégée des phénomènes d'oxydation et engendre une différence de potentiel avec un corps de chauffe en aluminium. The grid is protected from oxidation phenomena and creates a difference potential with an aluminum heating body.

De préférence la grille est en métal déployé.Preferably the grid is made of expanded metal.

Cette disposition aide à briser le tartre qui vient se déposer sur ou contre la grille.This arrangement helps break up the scale that comes to settle on or against the grid.

De préférence l'agent anti tartre est contenu dans un tube et libère sa matière active par au moins une extrémité ouverte du tube.Preferably the anti-scale agent is contained in a tube and releases its material activated by at least one open end of the tube.

La matrice silicone peut être moulée dans le tube sans nécessiter d'autre moule. La matière active est libérée avec une cinétique d'ordre un par un front progressif de craquelures de la matrice qui correspond à la section du tube et qui est donc parfaitement contrôlé.The silicone matrix can be molded into the tube without requiring any other mold. The active material is released with kinetics of order one by a progressive front of cracks in the matrix which corresponds to the section of the tube and which is therefore perfectly controlled.

De préférence le tube contenant l'agent anti tartre est placé dans le réservoir d'eau du fer.Preferably the tube containing the anti-scale agent is placed in the tank iron water.

L'agent anti tartre peut être en quantité suffisante pour assurer un bon fonctionnement pendant la durée de vie du fer, ou peut être interchangeable. La disposition dans le réservoir constitue une simplification rendue possible par le moulage dans un tube.The anti-scale agent may be in sufficient quantity to ensure good operation during the life of the iron, or can be interchangeable. The disposal in the tank constitutes a simplification made possible by the molding in a tube.

L'invention sera mieux comprise au vu de l'exemple ci après et des dessins annexés.The invention will be better understood on the basis of the example below and of the drawings attached.

La figure 1 est une section longitudinale simplifiée d'un fer à repasser selon l'invention.Figure 1 is a simplified longitudinal section of an iron according to the invention.

La figure 2 est une vue de dessus simplifiée de la semelle d'un fer à repasser selon l'invention.Figure 2 is a simplified top view of the soleplate of an iron according to the invention.

Dans une réalisation préférentielle le fer à repasser représenté en figure 1 comporte une semelle 1 ayant une chambre de vaporisation 2, un réservoir 3 d'eau à vaporiser, un système de goutte à goutte 4 permettant l'alimentation en eau de la chambre de vaporisation 2 à partir du réservoir 3, et une enveloppe 5 comportant une poignée de manutention du fer.In a preferred embodiment the iron shown in Figure 1 comprises a sole 1 having a vaporization chamber 2, a reservoir 3 of water to vaporize, a drip system 4 allowing the supply of water from the vaporization chamber 2 from the reservoir 3, and an envelope 5 comprising an iron handling handle.

Le réservoir 3 formé de deux pièces 300 et 301 assemblées comporte un orifice de remplissage 302 fermé par un opercule coulissant 303. A l'intérieur de ce réservoir est disposé un élément tubulaire 304 de section constante dans lequel est moulée une matrice élastomère silicone 305 contenant de l'hexamétaphosphate de sodium (HMPS) en dispersion solide. Ce tube dont les extrémités sont ouvertes et laissent apparaítre la matrice silicone 305 est placé de façon à être mouillé par l'eau contenue dans le réservoir.The reservoir 3 formed of two parts 300 and 301 assembled has an orifice filling 302 closed by a sliding cover 303. Inside this tank is arranged a tubular element 304 of constant section in which is molded a silicone elastomeric matrix 305 containing sodium hexametaphosphate (HMPS) in solid dispersion. This tube whose ends are open and reveal the silicone matrix 305 is placed so as to be wetted by the water contained in the tank.

La semelle 1 comporte un corps chauffant en aluminium 100 qui forme les parois de la chambre de vaporisation 2, un élément chauffant tubulaire résistif 101, une plaque de fermeture 102 de la chambre de vaporisation 2, une coiffe 103 au contact thermique avec le corps chauffant 100 et destinée à être en contact avec le linge repassé sur sa face extérieure au fer.The sole 1 has an aluminum heating body 100 which forms the walls from the vaporization chamber 2, a resistive tubular heating element 101, a closure plate 102 of the vaporization chamber 2, a cover 103 at thermal contact with the heating body 100 and intended to be in contact with the linen ironed on its outside with the iron.

La chambre de vaporisation 2 comporte une zone 200 plus visible en figure 2 où se produit la chute des gouttes d'eau. La zone de vaporisation s'élargit sur le plat de la semelle dans une région 201. Cette zone de vaporisation est fermée par des nervures 202 et par une grille 203 de préférence en métal déployé plaqué d'une fine couche d'or. La grille 203 est montée serrée entre la plaque de fermeture 102 et le fond de la chambre de vaporisation 2, de sorte que le contact électrique est assuré entre la plaque 102, la grille 203 et le corps chauffant 100. Une différence de potentiel s'établit entre la grille 203 et le corps chauffant 100, par suite des natures métalliques différentes.The vaporization chamber 2 has a zone 200 more visible in FIG. 2 where the drop of the water drops. The spray area widens on the dish of the sole in a region 201. This vaporization zone is closed by ribs 202 and by a grid 203 preferably made of plated expanded metal of a thin layer of gold. The grid 203 is mounted clamped between the plate closure 102 and the bottom of the vaporization chamber 2, so that the contact electric is provided between the plate 102, the grid 203 and the heating body 100. A potential difference is established between the grid 203 and the heating body 100, as a result of different metallic natures.

La grille présente une maille de largeur comprise entre 0,3 et 3 millimètres, la section des fils de maille étant de préférence angulaire, à savoir triangulaire, carrée ou rectangulaire. La grille est en un matériau métallique différent de celui de la chambre de vaporisation, notamment en acier inoxydable, si désiré recouvert d'une couche d'or d'épaisseur comprise entre 10µ et 100µ.The grid has a mesh width of between 0.3 and 3 millimeters, the section of the mesh son preferably being angular, namely triangular, square or rectangular. The grid is made of a metallic material different from that the vaporization chamber, in particular stainless steel, if desired covered with a layer of gold between 10µ and 100µ thick.

Avantageusement le fond de la chambre de vaporisation 2 est couvert par un revêtement anti-caléfaction. La vapeur produite peut s'échapper par des passages 206 et des canaux 204 vers des trous de vaporisation tels que 205 qui débouchent sur le linge repassé directement ou via d'autres canaux de distribution situés sous le plat de la semelle.Advantageously, the bottom of the vaporization chamber 2 is covered by a anti-heat coating. The steam produced can escape through passages 206 and channels 204 to vaporization holes such as 205 which lead to the ironed linen directly or via other channels of distribution located under the soleplate.

Le fer étant à température ambiante, la matrice silicone 305 ne diffuse que très peu d'hexamétaphosphate par ses extrémités libres, même si la matrice silicone 305 est mouillée. Pour utiliser son fer, l'utilisatrice remplit le réservoir d'eau 3 par l'orifice 302 dont elle referme l'ouverture avec l'opercule 303. Le fer étant chaud, le réservoir s'élève à une température modérée mais suffisante pour accélérer fortement la diffusion d'HMPS dans l'eau, la vapeur diffusant vers les grains d'HMPS très hydrophiles qui se chargent en eau, gonflent et brisent le réseau silicone. Le front de diffusion de l'HMPS progresse lentement dans la matrice dans l'axe du tube suivant sa section constante, et la diffusion est bien contrôlée.The iron being at room temperature, the silicone matrix 305 diffuses only very little hexametaphosphate by its free ends, even if the silicone matrix 305 is wet. To use her iron, the user fills the water tank 3 with the orifice 302, the opening of which it closes with the cover 303. The iron being hot, the tank rises to a moderate temperature but sufficient to accelerate strongly the diffusion of HMPS in water, the vapor diffusing towards the grains of highly hydrophilic HMPS which take up water, swell and break the network silicone. The diffusion front of HMPS progresses slowly in the matrix in the axis of the tube along its constant section, and the diffusion is well controlled.

De préférence, la longueur et la section du tube sont prévues pour assurer la diffusion de produit anti-tartre pendant la durée de vie du fer. Dans une autre version, le tube et sa matrice silicone sont interchangeables.Preferably, the length and the section of the tube are provided to ensure the diffusion of anti-scale product during the lifetime of the iron. In an other version, the tube and its silicone matrix are interchangeable.

Quand l'utilisatrice repasse, elle agit sur une commande 40 pour obtenir de la vapeur sur le linge. Le goutte à goutte laisse alors passer l'eau du réservoir 3 chargée en HMPS vers la chambre de vaporisation 2 ou elle tombe goutte à goutte dans une zone 200, et s'étale plus ou moins largement, suivant le débit, dans une zone 201 de la chambre. La vaporisation produit de la vapeur qui s'évacue vers le linge en traversant la grille 203, puis en passant dans les passages 206 et les canaux tels que 204 pour rejoindre les trous de vaporisation 205 de la semelle.When the user returns, she acts on a command 40 to obtain steam on the laundry. The drip then allows water to pass from the reservoir 3 charged in HMPS to vaporization chamber 2 where it drops to drop in an area 200, and spreads more or less widely, depending on the flow rate, in zone 201 of the room. The vaporization produces vapor which discharges to the laundry by passing through the grid 203, then passing through the passages 206 and channels such as 204 to join the spray holes 205 of the sole.

Le tartre laissé par la vaporisation de l'eau est en grande majorité sous forme pulvérulente grâce à l'action de l'HMPS et s'évacue en partie entraíné par la vapeur.The large scale left by the vaporization of water is in the form pulverulent thanks to the action of the HMPS and is partially evacuated by the steam.

Une autre partie du tartre se colle aux parois de la chambre de vaporisation 2 en couche friable d'où il se détache par la suite. Ces paillettes de tartre sont alors retenues par la grille. Une autre partie du tartre vient se déposer en croûte directement sur la grille. De manière surprenante, les paillettes et les croûtes de tartre se désagrégent au niveau de cette grille essentiellement en poudre fine invisible à l'oeil nu, cette poudre s'évacuant hors du fer à repasser par les orifices de vapeur. On pense que la différence de potentiel électrique présente au niveau de la grille, de l'ordre de 2 à 3 volts, provoque une transformation de la cohésion des cristaux de tartre, cette transformation pouvant être complétée par la géométrie angulaire de la section des trames de la grille. La grille 203 suffit alors à empêcher le passage de grosses particules et à transformer ces dernières en poudre fine.Another part of the scale sticks to the walls of the vaporization chamber 2 in friable layer from which it subsequently becomes detached. These tartar flakes are then retained by the grid. Another part of the tartar is deposited in a crust directly on the grid. Surprisingly, the flakes and crusts of scale disintegrate at the level of this grid essentially in fine powder invisible to the naked eye, this powder discharging out of the iron through the orifices steam. It is believed that the difference in electrical potential present at the level of the grid, of the order of 2 to 3 volts, causes a transformation of the cohesion crystals of tartar, this transformation can be completed by angular geometry of the grid frame section. The grid 203 is then sufficient to prevent the passage of large particles and to transform them into fine powder.

Dans une autre version l'HMPS est remplacé par un autre produit phosphoré hydrophile. In another version the HMPS is replaced by another phosphorus product hydrophilic.

Par ces moyens le tartre est évacué régulièrement de façon invisible et sans inconvénient pour l'utilisatrice. La durée de vie du fer est augmentée par le produit hydrophile anti tartre, sans que ce produit entraíne d'inconvénients tels que des taches marquant le linge repassé.By these means the tartar is evacuated regularly invisibly and without disadvantage for the user. The life of the iron is increased by the anti-scaling hydrophilic product, without this product causing such disadvantages only stains marking the ironed laundry.

Claims (8)

Fer à vapeur ayant un circuit d'eau caractérisé en ce que au moins un compartiment dudit circuit d'eau contient un agent anti tartre (305) obtenu par réticulation ou durcissement en un élastomère silicone d'un système organo silicique perméable à la vapeur d'eau comportant une matière active hydrophile et une composition polyorganosiloxane, le fer comportant en outre, à proximité de la zone de vaporisation d'une chambre (2) formée dans un corps de chauffe métallique (100), une grille (203), de nature métallique différente de celle du corps de chauffe (100), traversée par le flux de vapeur.Steam iron having a water circuit characterized in that at least one compartment of said water circuit contains an anti-scale agent (305) obtained by crosslinking or hardening into a silicone elastomer of an organosilicon system permeable to vapor d water comprising a hydrophilic active material and a polyorganosiloxane composition, the iron further comprising, near the vaporization zone of a chamber (2) formed in a metallic heating body (100), a grid (203), of metallic nature different from that of the heating body (100), traversed by the steam flow. Fer à vapeur selon la revendication 1 caractérisé en ce que la matière active hydrophile est choisie parmi les métaphosphates de sodium ou de potassium.Steam iron according to claim 1, characterized in that the hydrophilic active material is chosen from sodium or potassium metaphosphates. Fer à vapeur selon l'une des revendications précédentes caractérisé en ce que la grille (203) est montée serrée entre deux parois de la chambre de vaporisation (2) du fer à repasser.Steam iron according to one of the preceding claims, characterized in that the grid (203) is mounted clamped between two walls of the steam chamber (2) of the iron. Fer à vapeur selon l'une des revendications précédentes caractérisé en ce que la grille (203) est revêtue d'une couche d'or.Steam iron according to one of the preceding claims, characterized in that the grid (203) is coated with a layer of gold. Fer à vapeur selon l'une des revendications 1 à 3 caractérisé en ce que la grille (203) est en acier inoxydable.Steam iron according to one of claims 1 to 3 characterized in that the grid (203) is made of stainless steel. Fer à vapeur selon l'une des revendications précédentes caractérisé en ce que la grille (203) est en métal déployé.Steam iron according to one of the preceding claims, characterized in that the grid (203) is made of expanded metal. Fer à vapeur selon l'une des revendications précédentes caractérisé en ce que l'agent anti tartre (305) est contenu dans un tube (304) et libère sa matière active par au moins une extrémité ouverte du tubeSteam iron according to one of the preceding claims, characterized in that the anti-scale agent (305) is contained in a tube (304) and releases its active material through at least one open end of the tube Fer à vapeur selon la revendication 7 caractérisé en ce que le tube (304) contenant l'agent anti tartre est placé dans le réservoir d'eau (3) du fer.Steam iron according to Claim 7, characterized in that the tube (304) containing the anti-scale agent is placed in the water tank (3) of the iron.
EP01420068A 2000-03-27 2001-03-26 Physico-chemical antiscaling device with a grid, for an iron Expired - Lifetime EP1146164B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10014815A DE10014815A1 (en) 2000-03-27 2000-03-27 Physicochemical scale prevention device with a flake preventing grid for steam irons
DE10014815 2000-03-27

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EP1146164A2 true EP1146164A2 (en) 2001-10-17
EP1146164A3 EP1146164A3 (en) 2002-09-18
EP1146164B1 EP1146164B1 (en) 2004-04-14

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EP (1) EP1146164B1 (en)
JP (1) JP2001293297A (en)
AT (1) ATE264421T1 (en)
DE (2) DE10014815A1 (en)
ES (1) ES2218354T3 (en)
HK (1) HK1042532B (en)
TR (1) TR200401533T4 (en)

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CN104018332A (en) * 2014-06-23 2014-09-03 湖州石淙印染有限公司 Self-sealing iron
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WO2009044358A3 (en) * 2007-10-05 2012-05-31 Koninklijke Philips Electronics N.V. Steam generating device provided with a hydrophilic coating
US8561328B2 (en) 2007-10-05 2013-10-22 Koninklijke Philips N.V. Steam generating device provided with a hydrophilic coating
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CN102995374A (en) * 2011-09-09 2013-03-27 Seb公司 Household appliance comprising a steam distribution circuit
CN102995372B (en) * 2011-09-09 2016-04-13 Seb公司 Comprise the flatiron with the steam distribution circuit of filtering grate
EP2578742A1 (en) 2011-09-09 2013-04-10 Seb S.A. Ironing appliance comprising a steam distribution circuit
EP2578745A1 (en) 2011-09-09 2013-04-10 Seb S.A. Iron comprising a steam distribution circuit including a filtering screen
EP2578743A1 (en) 2011-09-09 2013-04-10 Seb S.A. Household appliance comprising a steam distribution circuit
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FR2979924A1 (en) * 2011-09-09 2013-03-15 Seb Sa HOUSEHOLD APPLIANCE COMPRISING A STEAM DISTRIBUTION CIRCUIT
EP2578743B1 (en) 2011-09-09 2017-11-29 Seb S.A. Household appliance comprising a steam distribution circuit
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CN102995375A (en) * 2011-09-09 2013-03-27 Seb公司 Ironing apparatus with distribution loop for steam
WO2015158977A1 (en) 2014-04-15 2015-10-22 Seb S.A. Electrical household appliance with biodegradable scale-inhibiting agent
CN104018332B (en) * 2014-06-23 2015-12-23 湖州石淙印染有限公司 A kind of self-enclosed flatiron
CN104018332A (en) * 2014-06-23 2014-09-03 湖州石淙印染有限公司 Self-sealing iron
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WO2018189464A1 (en) 2017-04-12 2018-10-18 Seb S.A. Household electrical appliance including means for heating water and a device for releasing an anti-scale agent into the water

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HK1042532B (en) 2004-10-08
HK1042532A1 (en) 2002-08-16
DE60102738D1 (en) 2004-05-19
ATE264421T1 (en) 2004-04-15
TR200401533T4 (en) 2004-08-23
EP1146164B1 (en) 2004-04-14
DE60102738T2 (en) 2005-04-28
JP2001293297A (en) 2001-10-23
ES2218354T3 (en) 2004-11-16
DE10014815A1 (en) 2001-10-11
EP1146164A3 (en) 2002-09-18
US6427366B2 (en) 2002-08-06
US20010034959A1 (en) 2001-11-01

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