EP1846607B1 - Method for cleaning and waterproofing textiles - Google Patents

Method for cleaning and waterproofing textiles Download PDF

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Publication number
EP1846607B1
EP1846607B1 EP05856223.2A EP05856223A EP1846607B1 EP 1846607 B1 EP1846607 B1 EP 1846607B1 EP 05856223 A EP05856223 A EP 05856223A EP 1846607 B1 EP1846607 B1 EP 1846607B1
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EP
European Patent Office
Prior art keywords
textiles
solution
washing
water
washing agent
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EP05856223.2A
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German (de)
French (fr)
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EP1846607A1 (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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Priority to PL05856223T priority Critical patent/PL1846607T3/en
Publication of EP1846607A1 publication Critical patent/EP1846607A1/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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state

Definitions

  • the invention also relates to a washing machine for carrying out such a method.
  • 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 produced or restored.
  • this treatment of textiles is done in a commercial laundry or cleaning company. Increasingly, however, it is also desired to be able to carry out such treatments in a household washing machine.
  • 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 textiles to be impregnated should be well cleaned beforehand in a separate washing program.
  • the impregnation is then, as is known, carried out separately in a standard washing operation in a so-called long liquor, which is characterized in that a relatively large amount of liquor per kg of laundry is used.
  • a recommended amount of hydrophobizing agent is filled before the start of this standard washing process in the main wash chamber of a detergent dispenser and fed together with cold fresh water to the tub of the washing machine.
  • the impregnating liquor is brought into contact with the laundry while being heated in the tub by means of a heater.
  • the duration of this treatment is determined by the program of washing machine control, the u. a. also determined by reaching the predetermined temperature of the impregnating liquor.
  • the laundry is rinsed several times, so that the amount of impregnating agent applied to the textile fibers of the laundry is reduced again. Therefore, the achievable by the known method hydrophobic effect is relatively low.
  • the process of producing or restoring the impregnation is consistently performed separately from any other treatment operation in the washing machine, so that the user of the washing machine has to perform the loading and setting operations twice and also has to wait the full length of both separate treatment programs.
  • the invention has for its object to provide a method that is applicable in a household washing machine and in which the user of the washing machine finds a treatment process with which the textiles can be both cleaned as well as impregnated in a continuous processing program. Furthermore should be significantly improved with a continuous processing program, the achievable hydrophobic effect compared to the prior art.
  • this object is achieved by the features specified in the characterizing part of claim 1 in such a way that a washing process for cleaning the textiles with the addition of a special detergent, which is suitable in addition to its known soil-removing effect also for detachment of any existing detergent ingredients from the textiles , Carried out in a flowing amount of fresh water and at the end of the used liquor is pumped, that after the washing process with replacement of the respective lye filling of the predecessor process a multi-stage rinsing process for the textiles is carried out and that after the end of the rinsing process with replacement of the last rinse liquor and adding the hydrophobic Substance is carried out in a newly added amount of fresh water, a treatment process for impregnating the laundry.
  • the totality of the above measures significantly increases the hydrophobic effect on the textiles.
  • the high concentration of the active ingredient in the liquor improves the Aufzieh the active ingredient and prevents over long fleets unnecessarily much drug consumption.
  • the introduction of the active ingredient in the already heated liquor prevents stains on the textiles and improves the Aufzieh of the active ingredient on the fiber again. With a maximum treatment time of 20 minutes, good results are achieved. Longer residence times waste energy without additional benefit. By dispensing with downstream rinses the risk of dilution or washing off of the active ingredient is avoided by the textile fibers.
  • the invention also provides a washing machine for carrying out the method according to the invention or one of its developments.
  • input means are provided by which a program sequence for the washing machine can be preselected, in which the method runs automatically, and a control device is provided by which the sequence of the preselected program is automatically controlled, as soon as there is a start signal
  • the tub 1 in Fig. 1 contains a stored therein about a horizontal axis 3 washing drum 2 with carriers 4 for existing laundry textiles 7.
  • the driver 4 have scooping devices 5, with which located below in the tub 1 lye 6 during rotation of the laundry drum 2 in the direction of arrow 16 from a level N v , which is above the lowest point of the laundry drum 2, scooped up, raised to a level above the laundry 7 and can be rained from the top of the laundry 7. As a result, the wetting and flooding of the laundry 7 is accelerated.
  • an electric motor 14 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.
  • a heater 13 is arranged, which serves to heat the liquor.
  • This liquor 6 passes through actuation of one of Solenoid valves 8 or 9 in the tub 1 and consists either only of water or a mixture of water and detergent.
  • Solenoid valves 8 or 9 in the tub 1 and consists either only of water or a mixture of water and detergent.
  • In the Waschstoffeinargues affection 11 two chambers 111 and 112 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 Waschstoffein Kunststofftechnisch
  • 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.
  • All switchable or controllable devices such as the solenoid valves 8 and 9, the heater 13, the drum drive motor 14 and the drain pump 18 are switched or controlled by the controller 12 of the washing machine.
  • a temperature sensor 15 For measuring the temperature of the liquor 6 also serves a temperature sensor 15, which passes its measuring signals via the reporting line to an evaluation device 121 in the control device 12.
  • the in Fig. 1 illustrated washing machine for example, operated as it is in FIGS. 2 and 3 is shown.
  • the scale on the ordinate applies only to the speed of the laundry drum 2; no scale is assigned to the other parameters.
  • the solenoid valve 8 is opened in order to charge water via the detergent chamber 111 filled with laundry detergent to be impregnated in this example for the preparatory cleaning and the line 10 into the tub 1.
  • the water carries this special agent into the tub 1, where it is distributed.
  • the washing process 2 which consists of the three phases PhB for wetting the laundry, PhW for washing the laundry and PhSp for rinsing the laundry, the laundry drum 2 is driven according to the bold solid line diagram n only at a lower speed (eg 23 rpm) than it is after wetting the case.
  • the drum 2 is driven only in the direction of arrow 16, in which the scooping devices 5 unfold their full effect on the drum casing.
  • the laundry drum 2 is continuously reversibly driven with, for example, 50 rpm, so that the laundry intensively with the during the Wetting phase already heated wash liquor comes into contact.
  • the wash liquor is pumped off and replaced with a fresh water lye filling.
  • the inflowing water can be passed, for example, through the already emptied detergent chamber 111.
  • the rinsing phase PhSp contains several stages with constantly new fresh water fillings, so that the washing lye is extremely diluted. It should namely remain as possible no residue of special detergent in the laundry. The number of rinsing stages is therefore set to this requirement.
  • the amount of water filled in the first phase Phl1 is appropriate for the laundry lot 7 stored in the laundry drum 2 minus an amount remaining in the laundry from the rinsing process and another amount needed for later supplying the hydrophobizing agent. This amount of water again passes through the solenoid valve 8 through the already emptied detergent chamber 111 into the tub, where it is first heated.
  • the Impregnating lye well mixed and evenly Laundry items 7 distributed.
  • the drum continues to be driven and meshes with its scooping devices 5 vigorously through the impregnating lye 6.
  • the laundry is intensively flooded, for example, for a maximum of 20 minutes by hydrophobicizing liquor.
  • Improved hydrophobizing agents also allow for a shorter exposure time of less than 20 minutes.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Detergent Compositions (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Reinigen und Herstellen oder Wiederherstellen einer hydrophoben Wirkung von Textilien in einer Haushalt-Waschmaschine mit Einrichtungen zum Heizen einer in einem Laugenbehälter befindlichen Lauge und zum Steuern von Behandlungsvorgängen sowie mit Waschmittelvorratskammern, von denen mindestens eine zum Bevorraten einer Einzeldosis eines flüssigen Waschhilfsmittels ausgebildet ist, bei welchem Verfahren in der Lauge gelöste hydrophobierende Wirkstoffe während eines einem Waschvorgang ähnlichen Behandlungsvorgangs mit den Textilien in Kontakt gebracht werden, bei welchem Verfahren

  • ein Waschvorgang zum Reinigen der Textilien unter Zugabe eines Spezialwaschmittels, das neben seiner bekannten schmutzablösenden Wirkung auch zum Ablösen etwa noch vorhandener Waschmittel-Wirkstoffe von den Textilien geeignet ist, in eine zufließende Frischwassermenge durchgeführt und am Ende die benutzte Wasch-Lauge abgepumpt wird,
  • nach Ablauf des Waschvorgangs unter Ersatz der jeweiligen Laugenfüllung des Vorgängervorgangs ein mehrstufiger Spülvorgang für die Textilien durchgeführt wird und
  • nach Ende des Spülvorgangs (PhSp) unter Ersatz der letzten Spüllauge und Zugabe des hydrophobierenden Wirkstoffes in eine neu hinzugeführte Menge von Frischwasser ein Behandlungsvorgang zum Imprägnieren der Textilien durchgeführt wird.
The invention relates to a method for cleaning and producing or restoring a hydrophobic effect of textiles in a household washing machine with means for heating a liquor in a tub and for controlling treatment operations and with detergent storage chambers, at least one for storing a single dose of liquid A washing aid is formed, in which method in the lye dissolved hydrophobizing agents are brought during a washing process similar treatment process in contact with the textiles, in which method
  • a washing process for cleaning the textiles with the addition of a special detergent, which is suitable in addition to its known dirt-removing effect for detachment of any remaining detergent ingredients from the textiles, carried out in a flowing amount of fresh water and at the end the used wash liquor is pumped out,
  • after completion of the washing process with replacement of the respective lye filling of the predecessor process, a multi-stage rinsing process for the textiles is carried out and
  • after the end of the rinsing process (PhSp) with replacement of the last rinse liquor and addition of the hydrophobizing agent in a newly added amount of fresh water, a treatment process for impregnating the textiles is performed.

Die Erfindung betrifft auch eine Waschmaschine zur Durchführung eines solches Verfahrens.The invention also relates to a washing machine for carrying out such a method.

Ein solches Verfahren und eine solche Waschmaschine gehen hervor aus der EP 0 548 035 A1 (nächstliegender Stand der Technik) Dort sind ein Verfahren und eine Waschmaschine zum Reinigen und Herstellen oder Wiederherstellen einer hydrophoben Wirkung von Textilien beschrieben. Bei dem Verfahren werden ein Waschvorgang, ein mehrstufiger Spülvorgang und ein Behandlungsvorgang zum Imprägnieren der Textilien durchgeführt.Such a method and such a washing machine are apparent from the EP 0 548 035 A1 (Related Art) There is described a method and a washing machine for cleaning and making or restoring a hydrophobic effect of textiles. In the method, a washing process, a multi-stage rinsing process and a treatment process for impregnating the textiles are carried out.

Gemäß der GB 2 378 960 A werden Textilien gewaschen und mehrstufig gespült, wobei im letzten Spülgang mit ein Wirkstoff, welcher die Textilien gegen Flecken abweisend macht, zugegeben wird.According to the GB 2 378 960 A textiles are washed and rinsed in several stages, with the last rinse with an active ingredient, which makes the textiles against stain repellent, is added.

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 hergestellt oder 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 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 produced or restored. Generally, this treatment of textiles is done in a commercial laundry or cleaning company. Increasingly, however, it is also desired to be able to carry out such treatments in a household washing machine.

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 parafinhaltigen Mitteln. Die zu imprägnierenden Textilien sollen vorher in einem gesonderten Waschprogramm gut gereinigt werden. Das Imprägnieren wird dann bekannterweise separat in einem Standard-Waschvorgang in einer sogenannten langen Flotte vorgenommen, die dadurch gekennzeichnet ist, dass verhältnismäßig viel Lauge pro kg Wäsche verwendet wird. Eine empfohlene Menge des hydrophobierenden Wirkstoffs wird dabei vor Beginn dieses Standard-Waschvorgangs in die Hauptwaschkammer einer Waschmittel-Einspüleinrichtung eingefüllt und zusammen mit kaltem Frischwasser dem Laugenbehälter der Waschmaschine zugeführt. Dann wird unter Bewegen der Wäsche durch Drehen der Wäschetrommel die Imprägnierflotte mit der Wäsche in Kontakt gebracht, während sie im Laugenbehälter mittels einer Heizvorrichtung erwärmt wird. Die Dauer dieser Behandlung wird dabei vom Programm der Waschmaschinen-Steuerung vorgegeben, die u. a. auch vom Erreichen der vorgegebenen Temperatur der Imprägnierflotte bestimmt wird. Am Ende des Waschvorgangs wird die Wäsche mehrmals gespült, so dass die Menge des auf die Textilfasern der Wäsche aufziehenden Imprägniermittels wieder reduziert wird. Daher wird der durch das bekannte Verfahren erzielbare hydrophobe Effekt relativ gering. Außerdem wird der Vorgang zum Herstellen oder Wiederherstellen der Imprägnierung durchwegs getrennt von irgend einem anderen Behandlungsvorgang in der Waschmaschine durchgeführt, so dass der Benutzer der Waschmaschine zwei Mal die Beschickungs- und Einstellhandlungen vornehmen muss und auch noch die volle Länge beider separaten Behandlungsprogramme abzuwarten hat.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 textiles to be impregnated should be well cleaned beforehand in a separate washing program. The impregnation is then, as is known, carried out separately in a standard washing operation in a so-called long liquor, which is characterized in that a relatively large amount of liquor per kg of laundry is used. A recommended amount of hydrophobizing agent is filled before the start of this standard washing process in the main wash chamber of a detergent dispenser and fed together with cold fresh water to the tub of the washing machine. Then, while moving the laundry by rotating the laundry drum, the impregnating liquor is brought into contact with the laundry while being heated in the tub by means of a heater. The duration of this treatment is determined by the program of washing machine control, the u. a. also determined by reaching the predetermined temperature of the impregnating liquor. At the end of the washing process, the laundry is rinsed several times, so that the amount of impregnating agent applied to the textile fibers of the laundry is reduced again. Therefore, the achievable by the known method hydrophobic effect is relatively low. Moreover, the process of producing or restoring the impregnation is consistently performed separately from any other treatment operation in the washing machine, so that the user of the washing machine has to perform the loading and setting operations twice and also has to wait the full length of both separate treatment programs.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren anzugeben, das in einer Haushalt-Waschmaschine anwendbar ist und bei dem der Benutzer der Waschmaschine einen Behandlungsablauf vorfindet, mit dem die Textilien in einem durchgehenden Bearbeitungsprogramm sowohl gereinigt wie auch imprägniert werden können. Außerdem soll mit einem durchgehenden Bearbeitungsprogramm der erzielbare hydrophobe Effekt im Vergleich zum Stand der Technik deutlich verbessert werden.The invention has for its object to provide a method that is applicable in a household washing machine and in which the user of the washing machine finds a treatment process with which the textiles can be both cleaned as well as impregnated in a continuous processing program. Furthermore should be significantly improved with a continuous processing program, the achievable hydrophobic effect compared to the prior art.

Erfindungsgemäß wird diese Aufgabe durch die im Kennzeichen des Anspruches 1 angegebenen Merkmale in der Weise gelöst, dass ein Waschvorgang zum Reinigen der Textilien unter Zugabe eines Spezialwaschmittels, das neben seiner bekannten schmutzablösenden Wirkung auch zum Ablösen etwa noch vorhandener Waschmittel-Wirkstoffe von den Textilien geeignet ist, in eine zufließende Frischwassermenge durchgeführt und am Ende die benutzte Lauge abgepumpt wird, dass nach Ablauf des Waschvorgangs unter Ersatz der jeweiligen Laugenfüllung des Vorgängervorgangs ein mehrstufiger Spülvorgang für die Textilien durchgeführt wird und dass nach Ende des Spülvorgangs unter Ersatz der letzten Spüllauge und Zugabe des hydrophobierenden Wirkstoffes in eine neu hinzugeführte Menge von Frischwasser ein Behandlungsvorgang zum Imprägnieren der Wäsche durchgeführt wird.According to the invention, this object is achieved by the features specified in the characterizing part of claim 1 in such a way that a washing process for cleaning the textiles with the addition of a special detergent, which is suitable in addition to its known soil-removing effect also for detachment of any existing detergent ingredients from the textiles , Carried out in a flowing amount of fresh water and at the end of the used liquor is pumped, that after the washing process with replacement of the respective lye filling of the predecessor process a multi-stage rinsing process for the textiles is carried out and that after the end of the rinsing process with replacement of the last rinse liquor and adding the hydrophobic Substance is carried out in a newly added amount of fresh water, a treatment process for impregnating the laundry.

Bei einem gattungsgemäßen Verfahren wird gemäß der Erfindung

  • für den Behandlungsvorgang zum Imprägnieren der Laugenbehälter mit einer auf eine kurze Flotte, d. h. auf ein Verhältnis von Gewicht der Menge trockener Textilien zu Gewicht der Wassermenge von kleiner als 1:8, bemessenen Menge von Wasser gefüllt, und
  • die Flotte unter Bewegen der Textilien im Laugenbehälter auf eine Temperatur von mindestens 30 °C aufgeheizt,
  • ehe der hydrophobierende Wirkstoff zugegeben wird.
In a generic method is according to the invention
  • for the treatment process for impregnating the tub with a short amount of water, ie a ratio of weight of dry cloth to weight of water less than 1: 8, filled to a short liquor, and
  • heating the liquor while moving the textiles in the tub to a temperature of at least 30 ° C,
  • before the hydrophobizing agent is added.

Diese Maßnahmen führen dazu, dass ein Benutzer seinen textilen Wäscheposten in eine Waschmaschine laden kann, das kombinierte Reinigungs- und Imprägnierprogramm auswählt und startet. Er braucht sich bis zum Ende des Imprägniervorganges nicht mehr um seinen Wäscheposten zu kümmern.These actions cause a user to load his textile laundry item into a washing machine, select and start the combined cleaning and impregnation program. He does not have to worry about his laundry until the end of the impregnation process.

Durch die Gesamtheit der vorstehenden Maßnahmen wird der hydrophobe Effekt auf den Textilien bedeutend erhöht. Die hohe Konzentration des Wirkstoffes in der Lauge verbessert das Aufziehverhalten des Wirkstoffes und verhindert gegenüber langen Flotten unnötig viel Wirkstoffverbrauch. Das Einbringen des Wirkstoffes in die bereits aufgeheizte Flotte verhindert Fleckenbildung auf den Textilien und verbessert nochmals das Aufziehverhalten des Wirkstoffes auf die Faser. Mit einer Behandlungsdauer von maximal 20 min erzielt man gute Ergebnisse. Längere Verweilzeiten verschwenden Energie ohne zusätzlichen Nutzen. Durch den Verzicht auf nachgeschaltete Spülgänge wird die Gefahr eines Verdünnens oder Abwaschens des Wirkstoffes von den Textilfasern vermieden.The totality of the above measures significantly increases the hydrophobic effect on the textiles. The high concentration of the active ingredient in the liquor improves the Aufziehverhalten the active ingredient and prevents over long fleets unnecessarily much drug consumption. The introduction of the active ingredient in the already heated liquor prevents stains on the textiles and improves the Aufziehverhalten of the active ingredient on the fiber again. With a maximum treatment time of 20 minutes, good results are achieved. Longer residence times waste energy without additional benefit. By dispensing with downstream rinses the risk of dilution or washing off of the active ingredient is avoided by the textile fibers.

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.

Erfindungsgemäß wird auch eine Waschmaschine zur Durchführung des erfindungsgemäßen Verfahrens oder einer seiner Weiterbildungen angegeben. Bei dieser Waschmaschine sind Eingabemittel vorhanden, durch die ein Programmablauf für die Waschmaschine vorwählbar ist, bei dem das Verfahren automatisch abläuft, und ist eine Steuerungseinrichtung vorgesehen, durch die der Ablauf des vorgewählten Programms automatisch gesteuert wird, sobald hierzu ein Startsignal vorliegtThe invention also provides a washing machine for carrying out the method according to the invention or one of its developments. In this washing machine, input means are provided by which a program sequence for the washing machine can be preselected, in which the method runs automatically, and a control device is provided by which the sequence of the preselected program is automatically controlled, as soon as there is a start signal

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 eines Waschvorgangs als erster Teil des erfindungsgemäß vollständigen Durchlaufprozesses und
Fig. 3
ein Diagramm für den zeitlichen Ablauf des unmittelbar an den Wasch- und Spülvorgang anschließenden erfindungsgemäßen Verfahrens zum Imprägnieren der eben gereinigten Textilien.
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 a wash as the first part of the present invention complete flow process and
Fig. 3
a diagram for the timing of the immediately subsequent to the washing and rinsing process according to the invention for impregnating the just cleaned textiles.

Der Laugenbehälter 1 in Fig. 1 enthält eine darin um eine horizontale Achse 3 gelagerte Wäschetrommel 2 mit Mitnehmern 4 für die aus Textilien bestehende Wäsche 7. Die Mitnehmer 4 haben Schöpfvorrichtungen 5, mit denen unten im Laugenbehälter 1 befindliche Lauge 6 während der Drehung der Wäschetrommel 2 in Pfeilrichtung 16 aus einem Niveau Nv, das oberhalb des tiefsten Punktes der Wäschetrommel 2 liegt, geschöpft, auf ein Niveau oberhalb der Wäsche 7 angehoben und von oben auf die Wäsche 7 abgeregnet werden kann. Dadurch wird die Benetzung und Durchflutung der Wäsche 7 beschleunigt. Zum Drehen der Wäschetrommel 2 dient ein Elektromotor 14, der seine Drehbewegung über ein Riemengetriebe in die Wäschetrommel 2 einleitet.The tub 1 in Fig. 1 contains a stored therein about a horizontal axis 3 washing drum 2 with carriers 4 for existing laundry textiles 7. The driver 4 have scooping devices 5, with which located below in the tub 1 lye 6 during rotation of the laundry drum 2 in the direction of arrow 16 from a level N v , which is above the lowest point of the laundry drum 2, scooped up, raised to a level above the laundry 7 and can be rained from the top of the laundry 7. As a result, the wetting and flooding of the laundry 7 is accelerated. 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.

Am Boden des Laugenbehälters 1 ist eine Heizeinrichtung 13 angeordnet, die zur Beheizung der Lauge dient. Diese Lauge 6 gelangt durch Betätigung eines der Magnetventile 8 oder 9 in den Laugenbehälter 1 und besteht entweder nur aus Wasser oder aus einem Gemisch von Wasser und Waschhilfsmittel. In der Waschmitteleinspüleinrichtung 11 sind zwei Kammern 111 und 112 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.At the bottom of the tub 1, a heater 13 is arranged, which serves to heat the liquor. This liquor 6 passes through actuation of one of Solenoid valves 8 or 9 in the tub 1 and consists either only of water or a mixture of water and detergent. In the Waschmitteleinspüleinrichtung 11 two chambers 111 and 112 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, die Heizeinrichtung 13, der Trommelantriebsmotor 14 und die Laugenpumpe 18, werden von der Steuereinrichtung 12 der Waschmaschine geschaltet oder gesteuert. Zur Messung der Temperatur der Lauge 6 dient außerdem ein Temperatursensor 15, der seine Messsignale über die Meldeleitung an eine Auswerteeinrichtung 121 in der Steuereinrichtung 12 leitet.All switchable or controllable devices, such as the solenoid valves 8 and 9, the heater 13, the drum drive motor 14 and the drain pump 18 are switched or controlled by the controller 12 of the washing machine. For measuring the temperature of the liquor 6 also serves a temperature sensor 15, which passes its measuring signals via the reporting line to an evaluation device 121 in the control device 12.

Gemäß der Erfindung wird die in Fig. 1 dargestellte Waschmaschine beispielsweise so betrieben, wie es in Fig. 2 und 3 dargestellt ist. In den Diagrammen gilt der Maßstab auf der Ordinate ausschließlich für die Drehzahl der Wäschetrommel 2; den anderen Parametern ist kein Maßstab zugeordnet. Für den Betrieb der Waschmaschine wird zunächst das Magnetventil 8 geöffnet, um Wasser über die - in diesem Beispiel zur vorbereitenden Reinigung zu imprägnierender Wäschestücke mit Spezialwaschmittel gefüllte - Waschmittelkammer 111 und die Leitung 10 in den Laugenbehälter 1 einzufüllen. Das Wasser führt dieses Spezialmittel mit in den Laugenbehälter 1, wo es sich verteilt.According to the invention, the in Fig. 1 illustrated washing machine, for example, operated as it is in FIGS. 2 and 3 is shown. In the diagrams, the scale on the ordinate applies only to the speed of the laundry drum 2; no scale is assigned to the other parameters. For the operation of the washing machine, first of all the solenoid valve 8 is opened in order to charge water via the detergent chamber 111 filled with laundry detergent to be impregnated in this example for the preparatory cleaning and the line 10 into the tub 1. The water carries this special agent into the tub 1, where it is distributed.

Zusammen bilden sie die Wasch-Lauge. Zu Beginn des in Fig. 2 dargestellten Waschvorganges, der aus den drei Phasen PhB zum Benetzen der Wäsche, PhW zum Waschen der Wäsche und PhSp zum Klarspülen der Wäsche besteht, wird die Wäschetrommel 2 entsprechend der fetten durchgezogenen Diagrammlinie n nur mit einer geringeren Drehzahl (z.B. 23 Upm) angetrieben, als es nach dem Benetzen der Fall ist. Außerdem wird in der Benetzungsphase PhB die Trommel 2 nur in Pfeilrichtung 16 angetrieben, in der die Schöpfeinrichtungen 5 am Trommelmantel ihre volle Wirkung entfalten.Together they form the wash liquor. At the beginning of in Fig. 2 The washing process 2, which consists of the three phases PhB for wetting the laundry, PhW for washing the laundry and PhSp for rinsing the laundry, the laundry drum 2 is driven according to the bold solid line diagram n only at a lower speed (eg 23 rpm) than it is after wetting the case. In addition, in the wetting phase PhB the drum 2 is driven only in the direction of arrow 16, in which the scooping devices 5 unfold their full effect on the drum casing.

Während der Waschphase PhW wird die Wäschetrommel 2 dauernd reversierend mit beispielsweise 50 Upm angetrieben, so dass die Wäsche intensiv mit der während der Benetzungsphase bereits aufgeheizten Wasch-Lauge in Berührung kommt. Am Ende der Waschphase PhW wird die Wasch-Lauge abgepumpt und durch eine Frischwasser-Laugenfüllung ersetzt. Dazu kann das zufließende Wasser beispielsweise durch die bereits geleerte Waschmittelkammer 111 geleitet werden. Die Spülphase PhSp enthält mehrere Stufen mit immer wieder neuen Frischwasserfüllungen, so dass die Wasch-Lauge extrem stark verdünnt wird. Es soll nämlich möglichst kein Rückstand von Spezialwaschmittel in der Wäsche verbleiben. Die Zahl der Spülstufen ist daher auf diese Forderung einzustellen.During the washing phase PhW, the laundry drum 2 is continuously reversibly driven with, for example, 50 rpm, so that the laundry intensively with the during the Wetting phase already heated wash liquor comes into contact. At the end of the washing phase PhW, the wash liquor is pumped off and replaced with a fresh water lye filling. For this purpose, the inflowing water can be passed, for example, through the already emptied detergent chamber 111. The rinsing phase PhSp contains several stages with constantly new fresh water fillings, so that the washing lye is extremely diluted. It should namely remain as possible no residue of special detergent in the laundry. The number of rinsing stages is therefore set to this requirement.

Im übrigen können die hier beschriebenen Vorgänge in den Phasen PhB, PhW und PhSp gemäß den aktuellen Erkenntnissen über das Benetzen, Waschen und Spülen von Wäsche variiert werden.Incidentally, the operations described herein in phases PhB, PhW and PhSp may be varied according to current knowledge about wetting, washing and rinsing of laundry.

Unmittelbar anschließend folgt gemäß Fig. 3 auf den Waschvorgang der imprägniervorgang. Die in der ersten Phase Phl1 eingefüllte Wassermenge ist dem in der Wäschetrommel 2 lagernden Wäscheposten 7 abzüglich einer Menge angemessen, die vom Spülvorgang noch in der Wäsche verblieben ist, und einer weiteren Menge, die zum späteren Zuführen des hydrophobierenden Wirkstoffes benötigt wird. Diese Wassermenge läuft abermals über das Magnetventil 8 durch die bereits geleerte Waschmittelkammer 111 in den Laugenbehälter, wo sie zunächst aufgeheizt wird. Erst wenn die Laugentemperatur etwa 30° oder 40 °C beträgt, wird über das jetzt geöffnete Magnetventil 9 die restliche Wassermenge zusammen mit dem in der Waschmittelkammer 112 bevorrateten hydrophobierenden Wirkstoff als hoch konzentrierte Imprägnier-Lauge durch die Leitung 10 in den Laugenbehälter 1 geführt und bildet zusammen mit der bereits aufgeheizten Lauge an seinem Boden ein Niveau Nv, das die Wäschetrommel 2 mindestens berührt. Auf diese Weise sind die Schöpfeinrichtungen 5 an der Wäschetrommel 2 in der Lage, bei hier schon einsetzender Trommeldrehung Imprägnier-Lauge aus dem Laugenbehälter 1 aufzunehmen, nach oben zu transportieren und über die Wäsche 7 abzuregnen. Damit sich der Wäscheposten nicht verknäuelt, wird die Trommel 2 reversierend angetrieben. Diese Antriebsweise ist hier nur schematisch angedeutet und kann in beliebiger Weise variiert werden, um die Durchflutung der Wäsche zu fördern.Immediately thereafter follows according to Fig. 3 on the washing process of the impregnation process. The amount of water filled in the first phase Phl1 is appropriate for the laundry lot 7 stored in the laundry drum 2 minus an amount remaining in the laundry from the rinsing process and another amount needed for later supplying the hydrophobizing agent. This amount of water again passes through the solenoid valve 8 through the already emptied detergent chamber 111 into the tub, where it is first heated. Only when the liquor temperature is about 30 ° or 40 ° C, the remaining amount of water is guided through the line 10 in the tub 1 via the now open solenoid valve 9 together with the stocked in the detergent chamber 112 hydrophobizing agent as a highly concentrated impregnating liquor together with the already heated liquor at its bottom a level N v , which at least touches the laundry drum 2. In this way, the scooping devices 5 on the laundry drum 2 are able to pick up impregnating liquor from the tub 1 when the drum is already rotating, transport it upwards and rinse it over the laundry 7. So that the laundry items do not get tangled, the drum 2 is reversibly driven. This mode of operation is indicated here only schematically and can be varied in any way to promote the flooding of the laundry.

Am Ende der Phase Phl1, in der die Imprägnier-Lauge 6 (Diagrammlinie V) im Laugenbehälter entsprechend der dünnen Diagrammlinie ϑ vor der Zugabe des hydrophobierenden Wirkstoffes durch die Heizeinrichtung 13 auf die Temperatur von maximal 30° oder 40°C aufgeheizt wird, ist die Imprägnier-Lauge gut vermischt und gleichmäßig im Wäscheposten 7 verteilt. Durch die Vorbenetzung der Wäsche aus dem vorangegangenen Spülgang PhSp kann bei der Zugabe des hydrophobierenden Wirkstoffes die plötzlich auftretende Konzentration der Imprägnier-Lauge der Wäsche 7 nichts anhaben; sie stellt keine Gefahr mehr dar für eine ansonsten mögliche Verfleckung mit hohen Wirkstoffkonzentrationen. Während der nunmehr beginnenden Phase Phl2 wird die Trommel weiterhin angetrieben und kämmt mit ihren Schöpfvorrichtungen 5 kräftig durch die Imprägnier-Lauge 6. Dadurch wird die Wäsche beispielsweise maximal 20 min lang intensiv von hydrophobierender Lauge durchflutet. Verbesserte hydrophobierende Wirkstoffe lassen auch eine verkürzte Einwirkdauer von weniger als 20 min zu.At the end of the phase Phl1, in which the impregnating liquor 6 (diagram line V) is heated in the tub corresponding to the thin diagram line θ before the addition of the hydrophobizing agent by the heater 13 to the temperature of 30 ° or 40 ° C, the Impregnating lye well mixed and evenly Laundry items 7 distributed. By pre-wetting the laundry from the previous rinse PhSp, the suddenly occurring concentration of the impregnating liquor of the laundry 7 can not be damaged during the addition of the hydrophobizing agent; it is no longer a danger for an otherwise possible staining with high concentrations of active ingredient. During the now beginning phase Phl2, the drum continues to be driven and meshes with its scooping devices 5 vigorously through the impregnating lye 6. As a result, the laundry is intensively flooded, for example, for a maximum of 20 minutes by hydrophobicizing liquor. Improved hydrophobizing agents also allow for a shorter exposure time of less than 20 minutes.

Am Ende der Phase Phl2 - nämlich bei Beginn der Phase Phl3 - setzt zunächst die Trommelbewegung aus und der Betrieb der Laugenpumpe 18 ein. Dadurch wird die im Laugenbehälter 1 befindliche freie Imprägnier-Lauge durch die Abflussleitung geschwind von der Pumpe 18 abgesaugt und abgeführt. Sehr bald nach Beginn des Pumpenbetriebs wird dann der Trommelantrieb auf Schleuderbetrieb gesetzt. Im dargestellten Diagramm sind die hohen Drehzahlen aus Platzgründen gestaucht dargestellt. Jedenfalls sind drei Schleuderimpulse mit jeweils sich steigernden Enddrehzahlen zu erkennen, durch die immer mehr gebundene Lauge aus der Wäsche ausgetrieben wird. Im letzten Schleuderintervall kann die Endschleuderdrehzahl durchaus 800 Upm erreichen. Hier wird bewusst auf das sonst übliche Vor-Spülen mit klarem Wasser verzichtet, damit möglichst viel vom hydrophobierenden Wirkstoff, der auf die Wäschefasern aufgezogen ist, dort auch erhalten bleibt. Während der Schleuderintervalle bleibt die Laugenpumpe 18 in Betrieb, damit die von der Wäsche ausgetriebene Lauge rasch abgeführt wird.At the end of the phase Phl2 - namely at the beginning of the phase Phl3 - first stops the drum movement and the operation of the drain pump 18. As a result, the free impregnating liquor present in the tub 1 is rapidly sucked off and discharged by the pump 18 through the drain line. Very soon after the start of the pump operation, the drum drive is then set to spin mode. In the diagram shown, the high speeds are shown compressed because of space. In any case, three centrifugal pulses are recognizable, each with increasing final speeds, is driven by the more and more bound liquor from the laundry. In the last spin interval, the final spin speed can reach 800 rpm. Here is deliberately dispensed with the usual pre-rinsing with clear water, so that as much of the hydrophobizing agent that is grown on the laundry fibers, there is also preserved. During the spin intervals, the drain pump 18 remains in operation, so that the leached from the laundry liquor is discharged quickly.

Claims (15)

  1. Method for cleaning and producing or reproducing a hydrophobic action on textiles (7) in a domestic washing machine with devices (13, 12) for heating a solution present in a solution container and for controlling treatment processes as well as with washing agent storage chambers, of which at least one (112) is constructed for storage of an individual dose of a liquid washing additive, in which method water-proofing actives dissolved in the solution (6) are brought into contact with the textiles (7) during a treatment process (Phl1 to Phl3) similar to a washing process (PhW), in which method:
    - a washing process (PhB, PhW) for cleaning the textiles (7) is carried out in an inflowing fresh-water quantity with addition of a special washing agent, which apart from its known dirt-detaching action is also suitable for detaching possibly still-present washing agent actives from the textiles (7), and the used washing solution is pumped out at the end,
    - after the conclusion of the washing process (PhW) a multi-stage rinsing process (PhSp) for the textiles (7) is carried out by replacement of the respective solution filling of the preceding process and
    - after the end of the rinsing process (PhSp) a treatment process (Phl1 to Phl3) for impregnation of the textiles (7) is carried out by replacement of the last rinsing solution and addition of the waterproofing active to a newly introduced quantity of fresh water,
    - that for the treatment process (Phl1 to Phl3) for the impregnation the solution container (1) is filled with a quantity of water (6) dimensioned with respect to a short bath, i.e. to a ratio of weight of the quantity of dry textiles (7) to weight of the water quantity of less than 1:8, and
    - the bath is heated to a temperature of at least 30° C under movement of the textiles (7) in the solution container (1) and
    - the waterproofing active is added beforehand.
  2. Method according to claim 1, characterised in that a washing agent on a soap basis is used as special washing agent.
  3. Method according to claim 1, characterised in that a pH-neutral washing agent is used as special washing agent.
  4. Method according to claim 1, characterised in that the rinsing process (PhSp) comprises at least three stages.
  5. Method according to claim 1, characterised in that for addition of the active a predetermined quantity of the waterproofing active is flushed into the solution container (1) by means of water from the washing agent storage chamber (112), which is constructed for liquid washing agent, and forms together with the water the impregnating solution (6).
  6. Method according to claim 1, characterised in that the textiles (7) in the treatment process (Phl2) come into contact with the impregnating solution (6) for a duration of at most 20 minutes.
  7. Method according to claim 1, characterised in that the impregnating solution (6) is removed from the textiles (7) and from the solution container (1) by spinning (Phl3) without a further rinsing process.
  8. Method according to claim 4, characterised in that the predetermined quantity of the active is set to a concentration of at most 30 grams per litre of water.
  9. Method according to claim 1, characterised in that the ratio is only 1:5.
  10. Method according to claim 5, characterised in that the duration of the treatment process (Phl2) for the textiles (7) with impregnating solution is at most approximately 15 minutes.
  11. Method according to claim 6, characterised in that after the treatment process (Phl2) for the textiles (7) initially the free impregnating solution (6) is removed from the solution container (1) before with at least temporary active removal of the impregnating solution (6) the impregnating solution retained in the textiles (7) is removed from the textiles by spinning (Phl3).
  12. Method according to claim 10, characterised in that for removal of the impregnating solution from the textiles (7) by spinning use is made of more than one pulse-like spinning process.
  13. Method according to claim 11, characterised in that at least three spinning processes are used, each of which reaches a higher final rotational speed than the preceding one.
  14. Method according to claim 13, characterised in that the maximum final rotational speed is 800 rpm.
  15. Washing machine for carrying out the method according to any one of claims 1 to 14, characterised in that input means (122) are provided by which a program sequence for the washing machine is preselectable, in which the method according to any one of claims 1 to 14 elapses automatically, and that a control device (12) is provided, by which execution of the preselected program is controlled automatically as soon as a start signal with respect thereto is present.
EP05856223.2A 2005-01-26 2005-11-21 Method for cleaning and waterproofing textiles Active EP1846607B1 (en)

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PL05856223T PL1846607T3 (en) 2005-01-26 2005-11-21 Method for cleaning and waterproofing textiles

Applications Claiming Priority (2)

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DE102005003694A DE102005003694A1 (en) 2005-01-26 2005-01-26 A method for impregnating weatherproof clothing in a domestic horizontal drum washing machine has an additional process following the normal wash process in which a special reproofing material is added, heated and soaked for a period
PCT/EP2005/056096 WO2006079427A1 (en) 2005-01-26 2005-11-21 Method for cleaning and waterproofing textiles

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EP1846607B1 true EP1846607B1 (en) 2014-09-03

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CN101111634B (en) 2010-09-15
US7841033B2 (en) 2010-11-30
EP1846607A1 (en) 2007-10-24
WO2006079427A1 (en) 2006-08-03
KR20070099602A (en) 2007-10-09
KR101192068B1 (en) 2012-10-17
CN101111634A (en) 2008-01-23
EA200701304A1 (en) 2008-02-28
EA011776B1 (en) 2009-06-30
US20080115294A1 (en) 2008-05-22
PL1846607T3 (en) 2015-02-27
DE102005003694A1 (en) 2006-07-27

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