EP0346212B1 - Waschmaschine mit einer Benetzungsphase - Google Patents

Waschmaschine mit einer Benetzungsphase Download PDF

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Publication number
EP0346212B1
EP0346212B1 EP89401559A EP89401559A EP0346212B1 EP 0346212 B1 EP0346212 B1 EP 0346212B1 EP 89401559 A EP89401559 A EP 89401559A EP 89401559 A EP89401559 A EP 89401559A EP 0346212 B1 EP0346212 B1 EP 0346212B1
Authority
EP
European Patent Office
Prior art keywords
washing
phase
soaking
liquid
washing machine
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.)
Expired - Lifetime
Application number
EP89401559A
Other languages
English (en)
French (fr)
Other versions
EP0346212A1 (de
Inventor
Christian Burgel
Jean-Pierre Peillon
Jacqueline Suau
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.)
Compagnie Industrielle dAppareils Menagers SA CIAPEM
Original Assignee
Compagnie Industrielle dAppareils Menagers SA CIAPEM
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Compagnie Industrielle dAppareils Menagers SA CIAPEM filed Critical Compagnie Industrielle dAppareils Menagers SA CIAPEM
Priority to AT89401559T priority Critical patent/ATE97705T1/de
Publication of EP0346212A1 publication Critical patent/EP0346212A1/de
Application granted granted Critical
Publication of EP0346212B1 publication Critical patent/EP0346212B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only

Definitions

  • the present invention relates to a washing machine provided with a soaking phase.
  • Adding a prewash phase to a normal washing phase in a washing machine gives a good washing result.
  • this addition greatly increases consumption of water, heating energy and detergent.
  • the quantity of detergent used for the two prewash and washing phases can then exceed 1.5 times a usual dose of detergent for a normal washing phase.
  • the object of the present invention is in particular to improve this type of washing with soaking and makes it possible to produce a washing machine that is efficient and economical in washing, both for fragile laundry sensitive to temperature and for laundry resistant to it. .
  • a washing machine provided in its operating cycles with a soaking phase followed without interruption over time by a washing phase of the laundry, the soaking phase comprising at least at the start of the cycle a short stirring of the linen followed by a rest period, is characterized in that it comprises in its operation a common liquid for soaking and washing, an absence of draining of this liquid between the soaking and washing phases and during these and maintaining the temperature of the soaking liquid and the washing liquid at a value at least equal to 30 ° C.
  • a washing machine which implements the invention comprises a tank, a washing drum, a drive motor, elements for heating the washing or rinsing soaking liquid, devices for supplying water and products.
  • detergents and systems for measuring water levels, and control members which are those of known types, and are not shown and described in detail below.
  • the washing machine comprises in its operating cycles, a soaking phase of adjustable duration, followed without interruption over time by a washing phase, in other words, the soaking phase is not separated from the washing phase by an indefinite stop of the washing machine.
  • the washing machine controls automatically and directly switch from the soaking phase to the washing phase.
  • the temperature of the soaking liquid and of the washing liquid is maintained at a relatively low value between 30 ° C and 45 ° C.
  • this temperature is 40 ° C. and represented in solid lines by a curve II, the ambient temperature being Ta.
  • a dose of a predetermined detergent for an operating cycle of this washing machine is introduced into the soaking liquid during the soaking phase. No liquid is drained between the soaking phase and the washing phase, and during these two phases.
  • the liquid introduced into the washing machine in the soaking phase thus constitutes a common liquid for soaking and washing the laundry.
  • the soaking phase includes a short and sufficient stirring of the laundry, carried out at the beginning of this phase, to perfect a total wetting of this linen with the soaking liquid provided with detergent, and a rest for the remainder of this phase where the linen in the stationary state is soaked in this liquid.
  • the washing phase which follows the soaking phase, the laundry is subjected to continuous stirring at usual rates, from the start to the end of this phase.
  • the stirring of the linen is represented by undulations, in a curve III of the attached drawing.
  • the brewing of the laundry occupies part of the time t o -t1 and a rest imposed on this laundry extends between t1 and t2, and in the washing phase t2-t, the brewing laundry occupies throughout this phase t2-t.
  • a common soaking and washing liquid is admitted into the washing machine up to a level intermediate N1 (curve I) and in the second part t3-t of the washing phase t2-t, the common soaking and washing liquid is raised to a predetermined maximum level N2.
  • This washing machine filling mode makes it possible to have a soaking liquid and a washing liquid in the beginning of the washing phase, high in concentration of detergent which exerts a powerful action on dirt and to obtain an excellent washing result without the temperature of this soaking and washing liquid being raised to a value greater than 45 ° C.
  • Comparative tests of washing a cotton linen carried out with the same detergent unexpectedly reveal that a similar washing result is obtained successively in a washing machine implementing the invention where the temperature of the soaking and washing liquid is around 40 ° C, and in a known washing machine where a conventional prewash phase (recalled in previous paragraphs) is added to a washing phase, and in the washing phase, the temperature of the washing liquid is brought to a value of 60 ° C., and that in addition a consumption of detergent, water and heating energy in the washing machine implementing the invention is significantly lower than in the known washing machine.
  • times for stirring the laundry respectively separated by longer periods of rest of the laundry are carried out along the soaking phase to promote good penetration of the liquid of soaking in the laundry and uniformity of contact between the soaking liquid and the entire surface of this laundry.
  • the temperature of the soaking liquid and of the washing liquid is raised during the soaking phase (t o -t2) to a value between 30 ° C and 45 ° C, and during the washing phase (t2-t) at a value between 45 ° C and 90 ° C, the residual physicochemical action of the detergent used in the washing machine, which can thus be fully developed. An excellent washing result is then obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detergent Compositions (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (4)

  1. Waschmaschine, zu deren Betriebszyklen eine Einweichphase gehört, der ohne zeitliche Unterbrechung eine Waschphase für die Wäsche folgt, wobei in der Einweichphase die Wäsche zumindest zu Beginn des Zyklus kurz umgewälzt wird und dann ruhig liegen bleibt, dadurch gekennzeichnet, daß sie in ihrem Betrieb eine gemeinsame Flüssigkeit für das Einweichen und das Waschen, kein Abpumpen dieser Flüssigkeit zwischen der Einweichphase und der Waschphase und während dieser Phasen sowie eine Einhaltung der Temperatur der Einweich- und Waschflüssigkeit auf einem Wert von mindestens 30°C aufweist.
  2. Waschmaschine nach Anspruch 1, dadurch gekennzeichnet, daß während der Einweichphase (t₀ bis t₂) die Temperatur der Einweich- und Waschflüssigkeit auf einen Wert gebracht wird, der zwischen 30 und 45°C liegt und daß während der Waschphase (t₂-t) die Temperatur dieser Waschflüssigkeit auf einen Wert zwischen 45°C und 90°C erhöht wird.
  3. Waschmaschine nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß in der Einweichphase die Wäsche während bestimmter Perioden umgewälzt wird, die durch längere Ruheperioden voneinander getrennt sind.
  4. Waschmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in der Einweichphase (t₀ bis t₂) und einem ersten Teil der Waschphase (t₂ bis t₃) die gemeinsame Einweich- und Waschflüssigkeit in der Waschmaschine bis zu einem Zwischenpegel N₁ zugelassen wird und in einem zweiten Teil dieser Waschphase (t₃ bis t) der Flüssigkeitspegel bis auf einen bestimmten Höchstpegel N₂ angehoben wird.
EP89401559A 1988-06-10 1989-06-06 Waschmaschine mit einer Benetzungsphase Expired - Lifetime EP0346212B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89401559T ATE97705T1 (de) 1988-06-10 1989-06-06 Waschmaschine mit einer benetzungsphase.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8807762A FR2632665B1 (fr) 1988-06-10 1988-06-10 Lave-linge pourvu d'une phase de trempage
FR8807762 1988-06-10

Publications (2)

Publication Number Publication Date
EP0346212A1 EP0346212A1 (de) 1989-12-13
EP0346212B1 true EP0346212B1 (de) 1993-11-24

Family

ID=9367159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401559A Expired - Lifetime EP0346212B1 (de) 1988-06-10 1989-06-06 Waschmaschine mit einer Benetzungsphase

Country Status (5)

Country Link
EP (1) EP0346212B1 (de)
AT (1) ATE97705T1 (de)
DE (1) DE68910882T2 (de)
ES (1) ES2046503T3 (de)
FR (1) FR2632665B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105760A1 (de) * 1991-02-23 1992-08-27 Licentia Gmbh Verfahren zum waschen von waesche in einer programmgesteuerten waschmaschine
EP0589094A1 (de) * 1992-09-22 1994-03-30 Unilever N.V. Maschinenwaschprogramm
IT1282406B1 (it) * 1995-01-05 1998-03-23 Zanussi Elettrodomestici Lavabiancheria o lavastoviglie con programmi di lavaggio perfezionati
FR2750708B1 (fr) * 1996-07-02 1998-10-30 Martin Rene Richardier Procede d'amelioration du lavage en laverie et centrale de commande pour l'application de ce procede
BR0105826A (pt) * 2001-11-13 2003-08-19 Multibras Eletrodomesticos Sa Processo de remoção de manchas de roupas em máquinas lavadoras de eixo vertical

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1327466A (fr) * 1962-06-25 1963-05-17 Bosch Gmbh Robert Machine à laver

Also Published As

Publication number Publication date
ATE97705T1 (de) 1993-12-15
ES2046503T3 (es) 1994-02-01
DE68910882D1 (de) 1994-01-05
FR2632665A1 (fr) 1989-12-15
DE68910882T2 (de) 1994-03-17
FR2632665B1 (fr) 1991-05-10
EP0346212A1 (de) 1989-12-13

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