EP1844190B1 - Method for spin-drying textiles after an impregnation process - Google Patents

Method for spin-drying textiles after an impregnation process Download PDF

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Publication number
EP1844190B1
EP1844190B1 EP05804606A EP05804606A EP1844190B1 EP 1844190 B1 EP1844190 B1 EP 1844190B1 EP 05804606 A EP05804606 A EP 05804606A EP 05804606 A EP05804606 A EP 05804606A EP 1844190 B1 EP1844190 B1 EP 1844190B1
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Prior art keywords
spinning
rotational speed
pulses
laundry drum
textiles
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EP05804606A
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German (de)
French (fr)
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EP1844190A1 (en
Inventor
Hartmut Schaub
Ingo Schulze
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D06B15/10—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by use of centrifugal force
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/007—Methods for washing, rinsing or spin-drying for spin-drying only
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
    • D06B15/04—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by suction

Definitions

  • the invention relates to a method for spinning textiles, which have been subjected in a household washing machine with means for driving a laundry drum rotatably mounted in a tub and for controlling a washing process, and in particular a method for producing a hydrophobic effect, in which method During a washing process similar treatment process under moving the laundry drum, the stored in her textiles are brought into contact with the hydrophobizing agents dissolved in the liquor.
  • Functional textiles such as outerwear, which is worn for protection against moisture from the air, gradually lose their water-repellent property, their impregnation during use. By applying a hydrophobizing substance on the textile fibers, this property can be restored.
  • this treatment of textiles is done in a commercial laundry or cleaning company. Increasingly, however, it is desired that such treatments in a household washing machine (see, eg EP 0542137 A ).
  • water repellents are offered in the relevant trade, which are suitable for use in household washing machines for impregnating textiles.
  • Such agents consist predominantly of fluorocarbon resins or paraffin-containing agents.
  • the impregnation may be carried out by a method according to an earlier patent application of this applicant ( 2004P02110 DE), in which the tub is filled with a quantity of water measured to a short liquor, ie to a ratio of weight of the dry fabric to weight of the water less than 1: 8, which wetting the textiles in the Lye container is heated to at least one such temperature, which is recommended by the textile manufacturer as a treatment temperature (eg 40 ° C), in which further a predetermined amount of the hydrophobizing agent is rinsed by means of water from a detergent reservoir into the tub and together with the water forms the liquor and finally the textiles are first contacted with the lye and treated for a maximum of 30 minutes. Finally, the lye is removed without rinsing by spinning out of the textiles and from the tub.
  • the invention has for its object to provide a spin coating method for the specific application after the machine impregnation of textiles, which reduces the risk of the formation of white spots and allows a satisfactory drainage.
  • this object is achieved by the features specified in the characterizing part of claim 1 in such a way that after removing the free hydrophobicizing liquor from the tub, the laundry drum in a first spin block for a first number of first spin pulses to a speed below a critical speed in which the oscillating system consisting of tub and washing drum is in resonance, it is accelerated that the washing drum is accelerated in a second spin block for a second number of second spin pulses to a speed above the critical speed that the laundry drum in a third and last Spinning block for a third number of third spin pulses on one of the laundry still beneficial maximum speed is accelerated, that during all spin blocks, the spun liquor is still removed from the tub and that the Wäschetrom mel between all centrifugal pulses is operated at a Auflock mecanicsnaviere, in which the textiles
  • the tub 1 in Fig. 1 contains a laundry drum 2 mounted therein about a horizontal axis 3 with carriers 4 for a laundry item 7 consisting of textiles.
  • the drivers 4 lift the laundry 7 during the rotation of the laundry drum 2 and allow it to fall back onto the bottom of the laundry drum 2 from above. As a result, the laundry is thoroughly wetted, flooded and mechanically processed.
  • To rotate the laundry drum 2 is an electric motor 14, which initiates its rotational movement via a belt transmission in the laundry drum 2.
  • To spin the laundry drum 2 is rotated in the direction indicated by the arrow 16 direction.
  • liquor 6 is supplied and fills the tub 1 to the height N V2 . It consists either only of water or of a mixture of water and washing aid.
  • the laundry drum 2 extends to a level N V1 , from which it can scoop the liquor 6.
  • All switchable or controllable devices such as the solenoid valves 8 and 9, the drum drive motor 14 and the drain pump 18 are from the controller 12 of the washing machine, in the case of the drive motor of a special control device 121, switched or controlled.
  • the drum drive is then set to spin mode.
  • the laundry lot is first loosened in a loosening section A1.
  • the loosening section is preferably operated with reversing laundry drum at a speed of 50 or less revolutions per minute.
  • the laundry drum is operated in a first spin block S1 with two first spin pulses I1 of 100 rpm each. This speed is still far below a resonance speed of the laundry drum 2, which can be assumed to lie at about 250 rpm.
  • the first spin block S1 with the two first spin pulses I1 is interrupted by a loosening section A2 and terminated by a further loosening section A3.
  • the second spin block S2 closing thereupon starts with a second spin pulse I2 with an increased rotational speed of approximately 400 rpm, which is safely above the resonance speed of the laundry drum 2.
  • the second spin block S2 also contains two spin pulses I2 and is interrupted or terminated by loosening sections A4 and A5, corresponding to the first spin block S1.
  • a final spin speed of a maximum of 800 rpm is achieved by the third spin pulses I3.
  • four centrifugal pulses I3 are used for this purpose, which are likewise replaced by loosening sections A6 to A9 interrupted or completed. This makes it possible to reach a residual moisture content of about 70%, which can be considered acceptable after an impregnation program.
  • the drain pump 18 remains in operation, so that the expelled from the wash liquor is discharged quickly.
  • the plurality of loosening sections avoids water bubbles, as described above, by shifting the textiles and then throwing the liquor from the laundry items.
  • centrifugal method is also suitable for draining textiles, which are difficult to dewater, such as heavily padded jackets, with the simplest of means and recover their typical loose, voluminous shape during subsequent air drying.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

During a first process (A1) the drum is alternatively rotated at 50rpm followed by a subcritical speed of 100rpm (11), followed by an identical process (A2), followed by a third (A3) and a higher spin speed of 400rpm (12) repeated by another (A4) and finally by four processes (A5-A8) at 800rpm (13).

Description

Die Erfindung betrifft ein Verfahren zum Schleudern von Textilien, die in einer Haushalt-Waschmaschine mit Einrichtungen zum Antreiben einer in einem Laugenbehälter drehbar gelagerten Wäschetrommel und zum Steuern eines Waschvorganges, und die insbesondere einem Verfahren zum Herstellen einer hydrophoben Wirkung unterworfen worden sind, bei welchem Verfahren während eines einem Waschvorgang ähnlichen Behandlungsvorgangs unter Bewegen der Wäschetrommel die in ihr lagernden Textilen mit den in der Lauge gelösten hydrophobierenden Wirkstoffen in Kontakt gebracht werden.The invention relates to a method for spinning textiles, which have been subjected in a household washing machine with means for driving a laundry drum rotatably mounted in a tub and for controlling a washing process, and in particular a method for producing a hydrophobic effect, in which method During a washing process similar treatment process under moving the laundry drum, the stored in her textiles are brought into contact with the hydrophobizing agents dissolved in the liquor.

Funktionstextilien wie Oberbekleidung, die für den Schutz gegen Feuchtigkeit aus der Luft getragen wird, verlieren beim Gebrauch allmählich ihre Wasser abweisende Eigenschaft, ihre Imprägnierung. Durch Aufbringen einer hydrophobierenden Substanz auf die Textilfasern kann diese Eigenschaft wieder hergestellt werden. Im Allgemeinen wird diese Behandlung von Textilien in einer gewerblichen Wäscherei oder einem Reinigungsunternehmen vorgenommen. Zunehmend wird aber auch gewünscht, solche Behandlungen in einer Haushalt-Waschmaschine (siehe z.B. EP 0542137 A ) durchführen zu können.Functional textiles such as outerwear, which is worn for protection against moisture from the air, gradually lose their water-repellent property, their impregnation during use. By applying a hydrophobizing substance on the textile fibers, this property can be restored. Generally, this treatment of textiles is done in a commercial laundry or cleaning company. Increasingly, however, it is desired that such treatments in a household washing machine (see, eg EP 0542137 A ).

Daher werden im einschlägigen Handel Hydrophobierungsmittel angeboten, die für den Einsatz in Haushalt-Waschmaschinen zum Imprägnieren von Textilien geeignet sind. Solche Mittel bestehen vorwiegend aus Fluorkarbonharzen oder paraffinhaltigen Mitteln. Das Imprägnieren kann mit einem Verfahren gemäß einer älteren Patentanmeldung dieses Anmelders ( 2004P02110 DE) durchgeführt werden, bei dem der Laugenbehälter mit einer auf eine kurze Flotte, d. h. auf ein Verhältnis von Gewicht der Menge trockenen Textils zu Gewicht der Wassermenge von kleiner als 1:8, bemessenen Menge von Wasser gefüllt wird, die unter Benetzen der Textilien im Laugenbehälter auf mindestens eine solche Temperatur aufgeheizt wird, die vom Textilhersteller als Behandlungstemperatur (z.B. 40°C) empfohlen wird, bei dem weiterhin eine vorbestimmte Menge des hydrophobierenden Wirkstoffes mittels Wasser aus einer Waschmittelvorratskammer in den Laugenbehälter eingespült wird und mit dem Wasser gemeinsam die Lauge bildet, und bei dem schließlich die Textilien erstmals mit der Lauge in Kontakt treten und für eine Dauer von maximal 30 min behandelt werden. Schlussendlich wird die Lauge ohne Spülen durch Schleudern aus den Textilien und aus dem Laugenbehälter entfernt.Therefore, water repellents are offered in the relevant trade, which are suitable for use in household washing machines for impregnating textiles. Such agents consist predominantly of fluorocarbon resins or paraffin-containing agents. The impregnation may be carried out by a method according to an earlier patent application of this applicant ( 2004P02110 DE), in which the tub is filled with a quantity of water measured to a short liquor, ie to a ratio of weight of the dry fabric to weight of the water less than 1: 8, which wetting the textiles in the Lye container is heated to at least one such temperature, which is recommended by the textile manufacturer as a treatment temperature (eg 40 ° C), in which further a predetermined amount of the hydrophobizing agent is rinsed by means of water from a detergent reservoir into the tub and together with the water forms the liquor and finally the textiles are first contacted with the lye and treated for a maximum of 30 minutes. Finally, the lye is removed without rinsing by spinning out of the textiles and from the tub.

Da bei Anwendung eines üblichen Schleudervorganges durch hydrophobierte Textilen aber idealerweise kein Wasser dringt, werden solche Textilien beim üblichen Schleudern Luftpolster bilden, in denen sich außerdem eine größere Menge der restlichen Imprägnierlauge befindet. Daher wird der erreichbare Entwässerungsgrad unter Anwendung eines üblichen Schleudervorganges enttäuschend sein. Außerdem werden solche Ansammlungen von Imprägnierungslaugenresten punktuell zu Anreicherungen auf begrenzten Textilstellen führen, die nach Abschluss eines sochen Schleuderverfahrens weiße Flecken auf den Textilen hinterlassen.However, since water does not penetrate ideally when using a conventional spinning process through hydrophobicized textiles, such textiles will form air cushions during conventional spinning, in which there is also a larger amount of the remaining impregnating liquor. Therefore, the achievable degree of dewatering will be disappointing using a standard spinning process. In addition, such accumulations of impregnating leach residues will occasionally lead to accumulations on limited textile sites, leaving white stains on the fabrics after completion of such a centrifugal process.

Der Erfindung liegt die Aufgabe zugrunde, ein Schleuderverfahren für die spezielle Anwendung nach dem maschinellen Imprägnieren von Textilien anzugeben, das die Gefahr der Bildung von weißen Flecken vermindert und eine befriedigende Entwässerung ermöglicht.
Erfindungsgemäß wird diese Aufgabe durch die im Kennzeichen des Anspruches 1 angegebenen Merkmale in der Weise gelöst, dass dass nach dem Entfernen der freien hydrophobierenden Lauge aus dem Laugenbehälter die Wäschetrommel in einem ersten Schleuderblock für eine erste Anzahl von ersten Schleuderimpulsen auf eine Drehzahl unterhalb einer kritischen Drehzahl, bei der das aus Laugenbehälter und Wäschetrommel bestehende Schwingsystem sich in Resonanz befindet, beschleunigt wird, dass die Wäschetrommel in einem zweiten Schleuderblock für eine zweite Anzahl von zweiten Schleuderimpulsen auf eine Drehzahl oberhalb der kritischen Drehzahl beschleunigt wird, dass die Wäschetrommel in einem dritten und letzten Schleuderblock für eine dritte Anzahl von dritten Schleuderimpulsen auf eine der Wäsche noch zuträgliche Maximaldrehzahl beschleunigt wird, dass während aller Schleuderblöcke die abgeschleuderte Lauge weiterhin aus dem Laugenbehälter entfernt wird und dass die Wäschetrommel zwischen allen Schleuderimpulsen mit einer Auflockerungsdrehzahl betrieben wird, bei der die Textilien sich unter Umherfallen in der Wäschetrommel umschichten.The invention has for its object to provide a spin coating method for the specific application after the machine impregnation of textiles, which reduces the risk of the formation of white spots and allows a satisfactory drainage.
According to the invention, this object is achieved by the features specified in the characterizing part of claim 1 in such a way that after removing the free hydrophobicizing liquor from the tub, the laundry drum in a first spin block for a first number of first spin pulses to a speed below a critical speed in which the oscillating system consisting of tub and washing drum is in resonance, it is accelerated that the washing drum is accelerated in a second spin block for a second number of second spin pulses to a speed above the critical speed that the laundry drum in a third and last Spinning block for a third number of third spin pulses on one of the laundry still beneficial maximum speed is accelerated, that during all spin blocks, the spun liquor is still removed from the tub and that the Wäschetrom mel between all centrifugal pulses is operated at a Auflockerungsdrehzahl, in which the textiles are changing over while falling in the laundry drum.

Durch die Gesamtheit der vorstehenden Maßnahmen wird eine befriedigende Entwässerung der Textitlien erreicht, die etwa bei 70% Restfeuchte liegen kann. Außerdem können auf die beschriebene Weise Ansammlungen von Imprägnierlauge an begrenzten Textilienbereichen vermieden werden, so dass die Gefahr der Bildung von weißen Flecken auf den Textilien nicht mehr zu befürchten ist.The entirety of the above measures achieves a satisfactory drainage of the textiles, which can be around 70% residual moisture. In addition, in the manner described accumulations of impregnating liquor can be avoided in limited textiles areas, so that the risk of formation of white spots on the textiles is no longer to be feared.

In den Unteransprüchen werden vorteilhafte Weiterbildungen des erfindungsgemäßen Verfahrens beschrieben, die einzeln oder in beliebigen Kombinationen miteinander verwendet werden können.In the dependent claims advantageous developments of the method according to the invention are described, which can be used individually or in any combination with each other.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels ist die Erfindung nachstehend erläutert. Es zeigen

Fig. 1
eine schematisch dargestellte Waschmaschine mit einem Laugenbehälter und einer darin gelagerten Wäschetrommel für die Aufnahme von Textilien und
Fig. 2
ein Diagramm für den zeitlichen Ablauf des erfindungsgemäßen Schleuderverfahrens.
Reference to an embodiment shown in the drawing, the invention is explained below. Show it
Fig. 1
a schematically illustrated washing machine with a tub and a drum mounted therein for receiving textiles and
Fig. 2
a diagram for the timing of the spin coating process according to the invention.

Der Laugenbehälter 1 in Fig. 1 enthält eine darin um eine horizontale Achse 3 gelagerte Wäschetrommel 2 mit Mitnehmern 4 für einen aus Textilien bestehenden Wäscheposten 7. Die Mitnehmer 4 heben während der Drehung der Wäschetrommel 2 die Wäsche 7 an und lassen sie von oben wieder auf den Boden der Wäschetrommel 2 zurückfallen. Dadurch wird die Wäsche intensiv benetzt, durchflutet und mechanisch bearbeitet. Zum Drehen der Wäschetrommel 2 dient ein Elektromotor 14, der seine Drehbewegung über ein Riemengetriebe in die Wäschetrommel 2 einleitet. Zum Schleudern wird die Wäschetrommel 2 in der durch den Pfeil 16 angedeuteten Richtung gedreht.The tub 1 in Fig. 1 contains a laundry drum 2 mounted therein about a horizontal axis 3 with carriers 4 for a laundry item 7 consisting of textiles. The drivers 4 lift the laundry 7 during the rotation of the laundry drum 2 and allow it to fall back onto the bottom of the laundry drum 2 from above. As a result, the laundry is thoroughly wetted, flooded and mechanically processed. To rotate the laundry drum 2 is an electric motor 14, which initiates its rotational movement via a belt transmission in the laundry drum 2. To spin the laundry drum 2 is rotated in the direction indicated by the arrow 16 direction.

Durch Betätigung eines der Magnetventile 8 oder 9 wird Lauge 6 zugeführt und füllt den Laugenbehälter 1 bis zur Höhe NV2. Sie besteht entweder nur aus Wasser oder aus einem Gemisch von Wasser und Waschhilfsmittel. Die Wäschetrommel 2 reicht bis in ein Niveau NV1, aus dem sie die Lauge 6 schöpfen kann.By operating one of the solenoid valves 8 or 9, liquor 6 is supplied and fills the tub 1 to the height N V2 . It consists either only of water or of a mixture of water and washing aid. The laundry drum 2 extends to a level N V1 , from which it can scoop the liquor 6.

In der Waschmitteleinspüleinrichtung 11 sind zwei Kammern dargestellt, die jeweils beim Öffnen des zugeordneten Magnetventils von Frischwasser durchflossen werden. Waschhilfsmittel, die sich in den Kammern befinden, werden dann vom Wasser durch die Leitung 10 hindurch aus der Waschmitteleinspüleinrichtung 11 in den Laugenbehälter 1 überführt. Lauge 6, die sich am Boden des Laugenbehälters 1 befindet, kann durch die Abflussleitung 17 und die Pumpe 18 in hier nicht näher dargestellter Weise nach außen befördert werden.In Waschmitteleinspüleinrichtung 11 two chambers are shown, which are each traversed by the opening of the associated solenoid valve of fresh water. Auxiliary washing agents, which are located in the chambers are then transferred from the water through the line 10 from the Waschmitteleinspüleinrichtung 11 in the tub 1. Lye 6, which is located at the bottom of the tub 1, can be transported through the drain line 17 and the pump 18 in a manner not shown here to the outside.

Alle schalt- oder steuerbaren Einrichtungen, wie die Magnetventile 8 und 9, der Trommelantriebsmotor 14 und die Laugenpumpe 18, werden von der Steuereinrichtung 12 der Waschmaschine, im Falle des Antriebsmotors von einer speziellen Regeleinrichtung 121, geschaltet oder gesteuert.All switchable or controllable devices, such as the solenoid valves 8 and 9, the drum drive motor 14 and the drain pump 18 are from the controller 12 of the washing machine, in the case of the drive motor of a special control device 121, switched or controlled.

Gemäß der Erfindung wird die in Fig. 1 dargestellte Waschmaschine im Anschluss an einen in der älteren Patentanmeldung dieses Anmelders (2004P02110DE) beschriebenen Imprägnierungsprozess in einem Schleuderprozess beispielsweise so betrieben, wie es in Fig. 2 dargestellt ist.According to the invention, the in Fig. 1 Following a washing process described in the earlier patent application of this Applicant (2004P02110DE) described washing machine in a spin process, for example, operated as shown in Fig. 2 is shown.

Am Ende eines solchen Imprägnierungsprozesses setzt zunächst die Trommelbewegung aus und der Betrieb der Laugenpumpe 18 ein. Dadurch wird die im Laugenbehälter 1 befindliche freie Lauge durch die Abflussleitung geschwind von der Pumpe 18 abgesaugt und abgeführt. Hier wird bewusst auf das sonst übliche Spülen mit klarem Wasser verzichtet, damit möglichst viel vom hydrophobierenden Wirkstoff, der auf die Wäschefasem aufgezogen ist, dort auch erhalten bleibt.At the end of such an impregnation process, first the drum movement stops and the operation of the drain pump 18. As a result, the free liquor present in the tub 1 is rapidly sucked through the drain line from the pump 18 and removed. Here consciously dispenses with the usual rinsing with clear water, so that as much of the hydrophobizing agent that is raised on the Wäschefasem, there is also preserved.

Sehr bald nach Beginn des Pumpenbetriebs wird dann der Trommelantrieb auf Schleuderbetrieb gesetzt. Im dargestellten Diagramm wird nach dem Abführen der freien Lauge der Wäscheposten in einem Auflockerungsabschnitt A1 zunächst aufgelockert. Der Auflockerungsabschnitt wird vorzugsweise mit reversierender Wäschetrommel einer Drehzahl von 50 oder weniger Umdrehungen pro Minute betrieben. Nach dem ersten Auflockerungsabschnitt A1 wird die Wäschetrommel in einem ersten Schleuderblock S1 mit zwei ersten Schleuderimpulsen I1 von jeweils 100 Upm betrieben. Diese Drehzahl liegt noch weit unterhalb einer Resonanzdrehzahl der Wäschetrommel 2, die man bei ca. 250 Upm liegend annehmen kann. Der erste Schleuderblock S1 mit den beiden ersten Schleuderimpulsen I1 ist durch einen Auflockerungsabschnitt A2 unterbrochen und durch einen weiteren Auflockerungsabschnitt A3 beendet.Very soon after the start of the pump operation, the drum drive is then set to spin mode. In the diagram shown, after the removal of the free liquor, the laundry lot is first loosened in a loosening section A1. The loosening section is preferably operated with reversing laundry drum at a speed of 50 or less revolutions per minute. After the first loosening section A1, the laundry drum is operated in a first spin block S1 with two first spin pulses I1 of 100 rpm each. This speed is still far below a resonance speed of the laundry drum 2, which can be assumed to lie at about 250 rpm. The first spin block S1 with the two first spin pulses I1 is interrupted by a loosening section A2 and terminated by a further loosening section A3.

Der sich daran schließende zweite Schleuderblock S2 beginnt mit einem zweiten Schleuderimpuls I2 mit gesteigerter Drehzahl von ca. 400 Upm, die sicher oberhalb der Resonanzdrehzahl der Wäschetrommel 2 liegt. Auch der zweite Schleuderblock S2 enthält zwei Schleuderimpulse I2 und wird - entsprechend dem ersten Schleuderblock S1 - von Auflockerungsabschnitten A4 und A5 unterbrochen bzw. abgeschlossen.The second spin block S2 closing thereupon starts with a second spin pulse I2 with an increased rotational speed of approximately 400 rpm, which is safely above the resonance speed of the laundry drum 2. The second spin block S2 also contains two spin pulses I2 and is interrupted or terminated by loosening sections A4 and A5, corresponding to the first spin block S1.

Im abschließenden Schleuderblock S3 wird durch die dritten Schleuderimpulse I3 eine Endschleuderdrehzahl von maximal 800 Upm erreicht. Damit einigermaßen viel gebundene Lauge aus den Textilien abgeschleudert werden kann, werden hierfür vier Schleuderimpulse I3 eingesetzt, die ebenfalls wieder durch Auflockerungsabschnitte A6 bis A9 unterbrochen bzw. abgeschlossen werden. Dadurch gelingt es, auf eine Restfeuchte von ca. 70% zu gelangen, die nach einem Imprägnierungsprogramm als akzeptabel anzusehen ist.In the final spin block S3, a final spin speed of a maximum of 800 rpm is achieved by the third spin pulses I3. So that reasonably much bound liquor can be spun out of the textiles, four centrifugal pulses I3 are used for this purpose, which are likewise replaced by loosening sections A6 to A9 interrupted or completed. This makes it possible to reach a residual moisture content of about 70%, which can be considered acceptable after an impregnation program.

Während der Schleuderintervalle bleibt die Laugenpumpe 18 in Betrieb, damit die aus der Wäsche ausgetriebene Lauge rasch abgeführt wird. Die Vielzahl von Auflockerungsabschnitten vermeidet Wasserblasen, wie sie eingangs beschrieben wurden, durch Umschichtung der Textilien und anschließendes Abschleudern der Lauge aus dem Wäscheposten.During the spin intervals, the drain pump 18 remains in operation, so that the expelled from the wash liquor is discharged quickly. The plurality of loosening sections avoids water bubbles, as described above, by shifting the textiles and then throwing the liquor from the laundry items.

Es hat sich gezeigt, dass ein solches Schleuderverfahren auch geeignet ist, um Textilien, die sich - wie beispielsweise stark wattierte Jacken - nur schwierig zu entwässern sind, mit einfachsten Mitteln tropffrei zu entwässern und beim anschließenden Lufttrocknen ihre typische lockere, voluminöse Form wieder erhalten.It has been found that such a centrifugal method is also suitable for draining textiles, which are difficult to dewater, such as heavily padded jackets, with the simplest of means and recover their typical loose, voluminous shape during subsequent air drying.

Claims (14)

  1. Method of spinning textiles (7) which have been subjected to, a treatment process, in particular, a method for producing a hydrophobic effect in a domestic washing machine with devices (12, 121, 14) for driving a laundry drum (2), which is rotatably mounted in a solution container (1), and for controlling a washing process, in which method during a treatment process similar to a washing process the textiles (7) stored in the laundry drum (2) are under movement thereof brought into contact with the water-repelling active ingredients dissolved in the solution (6), characterised in that
    - after removal of the free solution (6) from the solution container (1) the laundry drum (2) is accelerated in a first spinning block (S1) for a first number of first spinning pulses (I1) to a rotational speed below a critical rotational speed at which the oscillatory system consisting of solution container (1) and laundry drum (2) is disposed in resonance,
    - the laundry drum (2) is accelerated in a second spinning block (S2) for a second number of second spinning pulses (I2) to a rotational speed above the critical rotational speed,
    - the laundry drum (2) is accelerated in a third and last spinning block (S3) for a third number of third spinning pulses (I3) to a maximum rotational speed still beneficial to the laundry,
    - during all spinning blocks (S1-S3) the solution (6) which has been spun out is removed from the solution container (1) and
    - the laundry drum (2) between all spinning pulses (I1-I3) is operated in a loosening-up section (A1 to A9) at a loosening-up rotational speed, for example 50 rpm, at which the textiles (7) are relayered while falling around in the laundry drum (2).
  2. Method according to claim 1, characterised in that the first number is two.
  3. Method according to claim 1, characterised in that the rotational speed during the first spinning pulses (I1) is at most approximately 100 rpm.
  4. Method according to claim 1, characterised in that the first spinning pulses (I1) each last for 10 seconds.
  5. Method according to claim 1, characterised in that the second number of spinning pulses (I2) is two.
  6. Method according to claim 1, characterised in that the rotational speed of the second spinning pulses (I2) is in each instance at most approximately 600 rpm.
  7. Method according to claim 1, characterised in that the second spinning pulses (I2) each last for 10 seconds.
  8. Method according to claim 1, characterised in that the third number is four.
  9. Method according to claim 1, characterised in that the rotational speed during the third spinning pulses (I3) is at most approximately 800 rpm.
  10. Method according to claim 1, characterised in that the third spinning pulses (I3) each last for 30 seconds.
  11. Method according to claim 1, characterised in that the loosening-up rotational speed is approximately 30 rpm.
  12. Method according to claim 1, characterised in that the operation at loosening-up rotational speed lasts in each instance approximately 30 seconds.
  13. Method according to claim 1, characterised in that the duration of all spinning blocks (S1-S3) is in total at most 15 minutes.
  14. Washing machine for carrying out a method according to one of the preceding claims, characterised in that a time control device, which is equipped for issuing time control pulses according to at least of claims 4, 7, 10 and 12 and for repetition of intervals according to at least one of claims 2, 5 and 8, and a rotational speed control device for the drive of the laundry drum (2) are provided, which are equipped for regulating the rotational speeds of the laundry drum (2) according to at least one of claims 3, 6, 9 and 11.
EP05804606A 2005-01-26 2005-11-21 Method for spin-drying textiles after an impregnation process Active EP1844190B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005003695A DE102005003695A1 (en) 2005-01-26 2005-01-26 A method for spin extracting liquid from washing materials in a horizontal axis domestic washing machine has a sequence of drum rotation speeds of increasing velocity interspersed with low speed contrarotations
PCT/EP2005/056118 WO2006079429A1 (en) 2005-01-26 2005-11-21 Method for spin-drying textiles after an impregnation process

Publications (2)

Publication Number Publication Date
EP1844190A1 EP1844190A1 (en) 2007-10-17
EP1844190B1 true EP1844190B1 (en) 2008-06-04

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EP05804606A Active EP1844190B1 (en) 2005-01-26 2005-11-21 Method for spin-drying textiles after an impregnation process

Country Status (9)

Country Link
US (1) US8046856B2 (en)
EP (1) EP1844190B1 (en)
KR (2) KR101242798B1 (en)
CN (1) CN101111635B (en)
AT (1) ATE397689T1 (en)
DE (2) DE102005003695A1 (en)
EA (1) EA010847B1 (en)
ES (1) ES2306242T3 (en)
WO (1) WO2006079429A1 (en)

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DE102010028368A1 (en) 2010-04-29 2011-11-03 BSH Bosch und Siemens Hausgeräte GmbH Process for treating laundry in a washing machine

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Publication number Publication date
EA010847B1 (en) 2008-12-30
KR101230686B1 (en) 2013-02-07
EP1844190A1 (en) 2007-10-17
EA200701303A1 (en) 2008-02-28
KR20130006522A (en) 2013-01-16
ES2306242T3 (en) 2008-11-01
US8046856B2 (en) 2011-11-01
US20080083132A1 (en) 2008-04-10
CN101111635B (en) 2010-09-29
KR101242798B1 (en) 2013-03-12
CN101111635A (en) 2008-01-23
ATE397689T1 (en) 2008-06-15
WO2006079429A1 (en) 2006-08-03
DE502005004364D1 (en) 2008-07-17
DE102005003695A1 (en) 2006-07-27
KR20070095339A (en) 2007-09-28

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