WO2003042447A1 - Procede pour eliminer les taches des vetements dans des lave-linge a arbre vertical - Google Patents

Procede pour eliminer les taches des vetements dans des lave-linge a arbre vertical Download PDF

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Publication number
WO2003042447A1
WO2003042447A1 PCT/BR2002/000150 BR0200150W WO03042447A1 WO 2003042447 A1 WO2003042447 A1 WO 2003042447A1 BR 0200150 W BR0200150 W BR 0200150W WO 03042447 A1 WO03042447 A1 WO 03042447A1
Authority
WO
WIPO (PCT)
Prior art keywords
clothes
load
washing liquid
time interval
agitation
Prior art date
Application number
PCT/BR2002/000150
Other languages
English (en)
Inventor
Flávio Erasmo BERNARDINO
Original Assignee
Multibrás S.A. Eletrodomésticos
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 Multibrás S.A. Eletrodomésticos filed Critical Multibrás S.A. Eletrodomésticos
Priority to US10/495,672 priority Critical patent/US20050066449A1/en
Priority to MXPA04004522A priority patent/MXPA04004522A/es
Publication of WO2003042447A1 publication Critical patent/WO2003042447A1/fr

Links

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 refers to a process for removing spots from clothes in laundry machines with a vertical shaft and which presents a perforated basket to contain the clothes to be laundered.
  • the laundering cycle has a water heating system usually provided in a bottom portion of a tub, inside which is provided the perforated basket, said water heating system containing a resistance of about 1500W, which actuates during the soaking step of the laundering cycle to increase the temperature to about 45°C.
  • the conventional constructions for laundry machines are those with the capacity to wash 5 kg of dry clothes and those with the capacity to wash 7 kg of dry clothes.
  • These machines generally present laundering programs, each for a determined intensity of laundering action, which can be selected according to the amount of soil in the clothes to be laundered. The dirtier the clothes the more intense should be the laundering program to be selected.
  • the quality of the soil-spot removal from a load of clothes in a laundry machine depends on four factors: the chemical action obtained as a function of the characteristics of the detergent used; the mechanical action corresponding to the transfer of movement from the mechanical parts of the laundry machine to the load of clothes being laundered; the thermal action related to the heating of the washing liquid and which is effected by the electrical resistance of the laundry machine; and the time action related to the duration of each laundering program.
  • the thermal action is the one that allows improving the spot removal.
  • the known constructions cannot increase the temperature of the washing water as a function of the aspects presented below.
  • the laundry machines with a vertical shaft require a large quantity of water to effect the laundering of clothes .
  • the high energy consumption and mainly the long time needed to heat this volume of water by means of the electrical resistance available in these machines make the use of temperatures above 45°C impracticable.
  • Another object of the present invention is to present a process as mentioned above, which allows, within the existing limitations of installation and energetic consumption, to obtain temperatures for laundering clothes higher than those reached in the existing laundry machines of household use, without requiring to modify the capacity of the resistance presently used in the available laundry machines .
  • a process for removing spots from clothes in laundry machines with a vertical shaft comprising a tub for containing a washing liquid in at least one laundering level, and a perforated basket for containing clothes and provided internal to the tub, said process comprising the steps of: a- supplying a washing liquid to a load of soiled clothes contained inside the perforated basket until reaching a predetermined level that is substantially lower than the lowest laundering level and compatible with the load of clothes; fa- submitting the load of clothes immersed in the washing liquid to at least one agitation period during a certain first agitation time interval; c- maintaining the load of clothes immersed in the washing liquid at rest after a respective agitation period has elapsed and during a predetermined first rest time interval sufficient for the temperature of the washing liquid to reach a value necessary to allow the activation of at least one of the enzymatic and bleaching functions of the washing liquid; d- submitting the load of clothes immersed in the washing liquid to
  • Fig. 1 illustrates, schematically and in a vertical longitudinal sectional view, a laundry machine with a vertical shaft, presenting the predetermined level (LI) of washing liquid for the process of the present invention, and a minimum level (L2) of washing liquid for a conventional laundering;
  • LI predetermined level
  • L2 minimum level
  • Fig. 2 illustrates, graphically, the temperature versus time relation of different steps in a form of carrying out the process of the present invention
  • Fig. 3 illustrates, graphically, the temperature versus time relation of different steps of another form of carrying out the process of the present invention.
  • the present invention will be described in relation to a laundry machine of the type illustrated in fig. 1 and which comprises a tub 1 for containing washing liquid, said tub 1 being tubular and cylindrical and provided inside a non-illustrated cabinet, inside which is concentrically mounted a perforated basket 2, for containing clothes to be laundered, of the tubular cylindrical type with a vertical shaft and which is in selective fluid communication with a non-illustrated water supply source.
  • the water supply source feeds water to the tub 1 in a predetermined level LI, which is calculated to be compatible with a load of soiled clothes corresponding to about 30% the nominal load of clothes which requires, for example, the lowest laundering level L2 defined for that laundry machine.
  • the predetermined level LI is calculated so that the whole load of soiled clothes remains substantially immersed in the washing liquid.
  • the present invention provides a spot removing process comprising a first step, in which there is supplied a washing liquid, generally comprising water and a laundering detergent, to a load of soiled clothes contained within the perforated basket 2, until reaching the predetermined level LI, which is substantially lower than the lowest laundering level L2.
  • the present invention once the predetermined level LI has been reached, there is started at least one agitation period of the load of soiled clothes immersed in the washing liquid, during which period the clothes are agitated without water heating, for example maintaining said water at room temperature, and during a first agitation time interval sufficient for contacting the entire load of clothes with the washing liquid.
  • this first agitation time interval is of about 7 minutes .
  • the process of the present invention foresees a subsequent step, in which the load of soiled clothes immersed in the washing liquid is submitted to a respective resting condition, while a heating system for the washing liquid of the present laundry machine is activated.
  • the resting condition of this step is maintained during a predetermined first rest time interval, in order that the temperature of the washing liquid reaches a value necessary to allow the activation of at least one of the enzymatic and bleaching functions of the washing liquid.
  • the duration of this resting condition time interval is calculated so that the temperature reaches about 40°C- 45°C, preferably 45°C, which temperature generally activates the enzymatic function of the known detergents that form the washing liquid together with the water supplied to the tub.
  • Said time interval is of the order of 20 minutes.
  • the second agitation time interval is calculated to be sufficient to provide a certain cleaning of the load of clothes, but insufficient to cause a relevant drop in the temperature reached by the washing liquid.
  • the maintained temperature assures maintenance of the activation of the washing liquid functions, as previously discussed.
  • This second time interval is, for example, equal to the time interval of the first agitation time interval and calculated to be about 7 minutes .
  • the washing liquid is submitted to a subsequent resting step during a predetermined second rest time interval, so that the heating system, operating since the previous rest time, increases the temperature of the washing liquid to a value necessary to activate at least the other of said washing liquid functions, such as the bleaching function thereof, which has not been achieved with the temperature reached at the previous rest time interval .
  • the duration of this subsequent resting condition time interval is calculated so that the temperature reaches about 60°C-65°C, preferably 65°C, which temperature is desirable to generally activate the bleaching function of the known detergents that form the washing liquid jointly with the water supplied to the tub 1.
  • the duration of said time interval is, for example, that of the previous resting condition i.e., of the order of 20 minutes.
  • the present process comprises a respective subsequent agitation period, which is calculated so that the reached temperature remains substantially unaltered, producing in this period the bleaching effect.
  • This subsequent agitation period occurs during a respective third time interval sufficient to provide a certain cleaning of the load of clothes, but insufficient to cause a relevant drop in the temperature reached by the washing liquid.
  • the third time interval is, for example, substantially equal to that of the previous agitation periods i.e., of about 7 minutes .
  • the present process has the final step of extracting the washing liquid from the load of clothes, for example by draining or spinning, as described below.
  • the spot removing process is a laundering process independent of the conventional laundering process of the laundry machine
  • said process foresees the step of extracting the laundering liquid with the subsequent rinsing and spinning operations, thus finishing said spot removing process.
  • the spot removing process is a laundering step of a laundry machine laundering program
  • after the last agitation period of said spot removing step there is foreseen an additional step, in which water is re-supplied to the tub, until reaching a conventional laundering level, after which the conventional laundering operation of the selected program is processed.
  • a resting period starts, for example of about 40 minutes, which is sufficient for the washing liquid, in which the load of soiled clothes is immersed, to reach a temperature of about 65°C.
  • the load of clothes and the washing liquid are submitted to an agitation period under heat, as already described in relation to the procedure with reference to Fig. 2.

Landscapes

  • 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)
  • Detergent Compositions (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

L'invention porte sur un procédé permettant d'éliminer les taches des vêtements dans des lave-linge à arbre vertical. Ce procédé consiste à : a) amener un liquide de lavage dans une charge de vêtements sales placée dans un panier perforé (2) pourvu à l'intérieur d'un tube (1) qui est alimenté par un liquide de lavage jusqu'à ce que celui-ci atteigne un niveau prédéterminé qui est pratiquement inférieur au niveau de lavage le plus bas et compatible avec la charge de vêtements ; b) soumettre cette charge de vêtements à au moins une période d'agitation pendant une certaine durée ; c) laisser cette charge de vêtements au repos après une période d'agitation et pendant une première période de repos prédéterminée suffisante pour que la température du liquide de lavage atteigne une valeur nécessaire pour permettre l'activation d'au moins une des fonctions enzymatiques et de blanchissage du liquide de lavage ; d) soumettre la charge de vêtements à une autre période d'activation pendant une certaine durée suffisante pour assurer un certain nettoyage de la charge de vêtements, mais insuffisante pour que le liquide de lavage subisse une chute appropriée de température.
PCT/BR2002/000150 2001-11-13 2002-11-08 Procede pour eliminer les taches des vetements dans des lave-linge a arbre vertical WO2003042447A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/495,672 US20050066449A1 (en) 2001-11-13 2002-11-08 Process for removing spots from clothes in laundry machines with a vertical shaft
MXPA04004522A MXPA04004522A (es) 2001-11-13 2002-11-08 Procedimiento de remocion de manchas de ropa en maquinas lavadoras con eje vertical.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI0105826-6 2001-11-13
BR0105826-6A BR0105826A (pt) 2001-11-13 2001-11-13 Processo de remoção de manchas de roupas em máquinas lavadoras de eixo vertical

Publications (1)

Publication Number Publication Date
WO2003042447A1 true WO2003042447A1 (fr) 2003-05-22

Family

ID=3948140

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2002/000150 WO2003042447A1 (fr) 2001-11-13 2002-11-08 Procede pour eliminer les taches des vetements dans des lave-linge a arbre vertical

Country Status (8)

Country Link
US (1) US20050066449A1 (fr)
CN (1) CN100419146C (fr)
AR (1) AR037290A1 (fr)
BR (1) BR0105826A (fr)
CO (1) CO5580850A2 (fr)
EC (1) ECSP045106A (fr)
MX (1) MXPA04004522A (fr)
WO (1) WO2003042447A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1679398A1 (fr) * 2005-01-06 2006-07-12 Samsung Electronics Co., Ltd. Machine à laver et procédé permettant de commander l'alimentation en eau de cette machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8047024B2 (en) * 2007-05-07 2011-11-01 Whirlpool Corporation Control and wash cycle for activation and deactivation of chemistry in the wash bath of an automatic washer
US20160201247A1 (en) * 2015-01-09 2016-07-14 General Electric Company Washing machine appliance
CN113882117B (zh) * 2021-11-02 2024-01-16 海信冰箱有限公司 一种洗衣机的洗涤方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759836A (en) * 1952-11-29 1956-10-24 Fisher & Ludlow Ltd A new or improved washing machine
US3063785A (en) * 1959-12-14 1962-11-13 Clayton E Foreman Process for cleaning athletic uniforms
EP0038671A2 (fr) * 1980-04-16 1981-10-28 Servis Domestic Appliances Limited Procédés et machines pour le lavage d'articles textiles
EP0346212A1 (fr) * 1988-06-10 1989-12-13 Ciapem Lave-linge pourvu dùne phase de trempage
DE3902910A1 (de) * 1989-02-01 1990-08-02 Licentia Gmbh Verfahren zur programmgestaltung fuer waschmaschinen und vorrichtung zur durchfuehrung des verfahrens
EP0501240A1 (fr) * 1991-02-23 1992-09-02 Licentia Patent-Verwaltungs-GmbH Procédé pour laver le linge dans une machine à laver commandée par programme
EP0722008A2 (fr) * 1995-01-05 1996-07-17 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Programmes de lavage dans les machines à laver le linge ou la vaisselle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561257A (en) * 1944-08-25 1951-07-17 Gen Electric Control for automatic washing machines
US6381789B1 (en) * 1999-07-30 2002-05-07 Multibras S/A Electrodomesticos Laundering process and machine
US7516629B2 (en) * 2000-12-21 2009-04-14 Whirlpool Corporation Laundry appliance having automatic start feature based on selected stain

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759836A (en) * 1952-11-29 1956-10-24 Fisher & Ludlow Ltd A new or improved washing machine
US3063785A (en) * 1959-12-14 1962-11-13 Clayton E Foreman Process for cleaning athletic uniforms
EP0038671A2 (fr) * 1980-04-16 1981-10-28 Servis Domestic Appliances Limited Procédés et machines pour le lavage d'articles textiles
EP0346212A1 (fr) * 1988-06-10 1989-12-13 Ciapem Lave-linge pourvu dùne phase de trempage
DE3902910A1 (de) * 1989-02-01 1990-08-02 Licentia Gmbh Verfahren zur programmgestaltung fuer waschmaschinen und vorrichtung zur durchfuehrung des verfahrens
EP0501240A1 (fr) * 1991-02-23 1992-09-02 Licentia Patent-Verwaltungs-GmbH Procédé pour laver le linge dans une machine à laver commandée par programme
EP0722008A2 (fr) * 1995-01-05 1996-07-17 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Programmes de lavage dans les machines à laver le linge ou la vaisselle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1679398A1 (fr) * 2005-01-06 2006-07-12 Samsung Electronics Co., Ltd. Machine à laver et procédé permettant de commander l'alimentation en eau de cette machine

Also Published As

Publication number Publication date
ECSP045106A (es) 2004-11-19
US20050066449A1 (en) 2005-03-31
CO5580850A2 (es) 2005-11-30
AR037290A1 (es) 2004-11-03
CN100419146C (zh) 2008-09-17
BR0105826A (pt) 2003-08-19
CN1604977A (zh) 2005-04-06
MXPA04004522A (es) 2004-08-11

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