EP2605673B1 - Textil - Google Patents

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Publication number
EP2605673B1
EP2605673B1 EP11760818.2A EP11760818A EP2605673B1 EP 2605673 B1 EP2605673 B1 EP 2605673B1 EP 11760818 A EP11760818 A EP 11760818A EP 2605673 B1 EP2605673 B1 EP 2605673B1
Authority
EP
European Patent Office
Prior art keywords
conductive layers
textile
liquid transport
conductive
ions
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.)
Active
Application number
EP11760818.2A
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English (en)
French (fr)
Other versions
EP2605673A1 (de
Inventor
Tormod Volden
Trond Heldal
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.)
Osmotex AG
Original Assignee
Osmotex AG
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Filing date
Publication date
Application filed by Osmotex AG filed Critical Osmotex AG
Publication of EP2605673A1 publication Critical patent/EP2605673A1/de
Application granted granted Critical
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Active legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/12—Hygroscopic; Water retaining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]

Definitions

  • the present invention relates to a textile with increased water transport ability.
  • the present invention addresses this, according to one aspect, by introducing electrodes with an inherent charge transfer mechanism which does not depend on the reaction potentials of the liquid to be transported, and for which the liquid is not taking part in electrochemical reactions.
  • the invention provides a textile comprising first and second conductive layers, at least one porous layer positioned between the first and second conductive layers, the first and second conductive layers being arranged to generate an electric field whereby a current passes between the conductive layers so as to induce liquid transport and so as to cause ions to be received at the second conductive layer, measurement means arranged to measure the amount of charge transferred between the first and second conductive layers during a liquid transport operation, the measurement means being able to take account of any variation in current or voltage during the liquid transport operation, and control means arranged to control a regenerating operation to regenerate the second conductive layer by transferring via it an amount of charge substantially equal to the measured amount so as to cause ions to be removed from the second conductive layer and thereby regenerate the conductive layer.
  • the invention provides a textile comprising first and second conductive layers, at least one porous layer positioned between the first and second conductive layers, the first and second conductive layers being arranged to generate an electric field, and means for reversing the electric field.
  • the invention provides a textile pump with improved electrodes to avoid un-desired electrochemistry.
  • the electrode material is made from a hydrogen storing material such as palladium or nanochrystalline nickel.
  • a hydrogen storing material such as palladium or nanochrystalline nickel.
  • the oxidation and reduction of hydrogen occurs at only 0.3 V, hence an electric current causing electroosmotic liquid transport would happen at only 0.3 V, far below the reaction potential for water or sodium chloride solutions.
  • Such electrodes could thus safely transport even salt containing water.
  • the hydrogen is stored in the electrodes as neutral atoms or molecules, and moved through the porous liquid filled structure as ions.
  • An important aspect disclosed herein is the incorporation of a device which counts the number of ions (charge) passing from one electrode to the other. As these ions are the current carriers, this can be done by an automatic measuring of the current (i.e. the current is proportional to the number of hydrogen ions transported). After applying the current for a certain period in one direction, the cathode would become saturated with hydrogen and the process would stop. Therefore, in a preferred embodiment of the present invention, an electronic control system connected to the charge counting system would reverse the voltage (regeneration step) from time to time in order to avoid the saturation of one electrode or the emptying of the other.
  • membranes and textiles can have asymmetric water transport properties, e.g. due to asymmetric pore structure along its cross section.
  • the water transport could also be asymmetric e.g. due to liquid run-off at the outside of a jacket. Therefore, less water could be transported during the regeneration step, resulting in a net liquid transport in the desired direction.
  • the forward pumping could be applied during hard activity with high perspiration rates, and the regeneration could be carried out under dryer conditions or when the jacket is not in use.
  • the pores of the porous layer may extend in a direction substantially perpendicular to the conductive layer.
  • ions different from hydrogen would be the charge carriers, e.g. silver-silver chloride electrodes.
  • the charge counting and controlling system would be the same, however.
  • FIG. 1 A preferred embodiment is shown by way of example in the attached drawing, labelled as Figure 1 .
  • Nanocrystalline nickel or other hydrogen storing metals could be used for the electrodes.
  • Thin porous metal foils could be prepared by laser cutting a non porous foil, or by electroplating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Claims (6)

  1. Gewebe, das erste und zweite leitfähige Schichten, mindestens eine poröse Schicht (1), die zwischen den ersten und zweiten leitfähigen Schichten (2, 3) positioniert ist, umfasst, wobei die ersten und zweiten leitfähigen Schichten (2, 3) angeordnet sind, um ein elektrisches Feld zu erzeugen, wobei ein Strom zwischen den leitfähigen Schichten (2, 3) fließt, um einen Flüssigkeitstransport hervorzurufen und um zu bewirken, dass Ionen an der zweiten leitfähigen Schicht (3) empfangen werden, gekennzeichnet durch Messmittel (A), das zum Messen der Ladungsmenge, die zwischen den ersten und zweiten leitfähigen Schichten (2, 3) während eines Flüssigkeitstransportvorgangs übertragen wird, angeordnet ist, wobei das Messmittel (A) imstande ist, jegliche Veränderung von Stromstärke oder Spannung während des Flüssigkeitstransportvorgangs zu berücksichtigen, und gekennzeichnet durch Steuervorrichtung (4), die zum Steuern eines Regenerationsbetriebs zum Regenerieren der zweiten leitfähigen Schicht (3) angeordnet ist, indem durch sie eine Ladungsmenge, die im Wesentlichen gleich der gemessenen Menge ist, übertragen wird, um zu bewirken, dass Ionen von der zweiten leitfähigen Schicht (3) entfernt werden und dabei die leitfähige Schicht (3) regeneriert wird.
  2. Gewebe nach Anspruch 1, wobei das Gewebe angeordnet ist, um während des herbeigeführten Flüssigkeitstransportvorgangs durch Variieren der Spannung, die an die ersten und zweiten leitfähigen Schichten (2, 3) angelegt wird, anpassungsfähig zu sein.
  3. Gewebe nach Anspruch 1 oder 2, wobei die Steuervorrichtung (4) angeordnet ist, um den Regenerationsbetrieb durch Bewirken einer Stromrichtungsumkehr zwischen den ersten und zweiten leitfähigen Schichten (2, 3) zu steuern.
  4. Gewebe nach Anspruch 1, 2 oder 3, wobei die Ionen, die zwischen den leitfähigen Schichten (2, 3) transportiert werden, Wasserstoffionen sind, und die leitfähigen Schichten (2, 3) ein Wasserstoffspeichermaterial wie Palladium oder nanokristallines Nickel enthalten.
  5. Gewebe nach einem der Ansprüche 1 bis 4, wobei die poröse Schicht (1) eine asymmetrische Geometrie aufweist, um mehr Flüssigkeitstransport zu bewirken, wenn das elektrische Feld in die eine Richtung angelegt wird, als wenn es in die entgegengesetzte Richtung angelegt wird.
  6. Gewebe nach einem der Ansprüche 1 bis 5, das für den Wasserentzug aus Kleidung, aus Kraftfahrzeugs-, Zug- oder Flugzeugsitzen oder aus Matratzen genutzt wird.
EP11760818.2A 2010-08-20 2011-08-19 Textil Active EP2605673B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB201014036A GB201014036D0 (en) 2010-08-20 2010-08-20 Textile
PCT/GB2011/051568 WO2012022984A1 (en) 2010-08-20 2011-08-19 Textile

Publications (2)

Publication Number Publication Date
EP2605673A1 EP2605673A1 (de) 2013-06-26
EP2605673B1 true EP2605673B1 (de) 2015-06-03

Family

ID=42984483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11760818.2A Active EP2605673B1 (de) 2010-08-20 2011-08-19 Textil

Country Status (4)

Country Link
US (1) US20130216816A1 (de)
EP (1) EP2605673B1 (de)
GB (1) GB201014036D0 (de)
WO (1) WO2012022984A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201408472D0 (en) 2014-05-13 2014-06-25 Osmotex Ag Electroosmotic membrane
EP3510285B1 (de) 2016-09-08 2020-10-28 Osmotex AG Geschichtete elktroosmotische struktur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969203A (en) * 1974-02-19 1976-07-13 Swift & Company Waste water treatment
GB8326170D0 (en) * 1983-09-29 1983-11-02 Int Research & Dev Co Ltd Electrochemical cell
NO308095B1 (no) 1997-06-30 2000-07-24 Consensus As Fremgangsmate for transport av vaeske i tekstiler
US6890409B2 (en) * 2001-08-24 2005-05-10 Applera Corporation Bubble-free and pressure-generating electrodes for electrophoretic and electroosmotic devices
DE10245243B3 (de) * 2002-09-26 2004-03-04 Eads Deutschland Gmbh Entfeuchtungseinrichtung für einen feuchtigkeitsaufnehmenden Gegenstand, insbesondere einen Sitz, sowie entsprechendes Verfahren
GB0716384D0 (en) * 2007-08-22 2007-10-03 Osmolife As Textile having water transport and heating capabilities

Also Published As

Publication number Publication date
US20130216816A1 (en) 2013-08-22
GB201014036D0 (en) 2010-10-06
EP2605673A1 (de) 2013-06-26
WO2012022984A1 (en) 2012-02-23

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