EP3219842A1 - Procédé de traitement par voie humide de linge - Google Patents

Procédé de traitement par voie humide de linge Download PDF

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Publication number
EP3219842A1
EP3219842A1 EP17000029.3A EP17000029A EP3219842A1 EP 3219842 A1 EP3219842 A1 EP 3219842A1 EP 17000029 A EP17000029 A EP 17000029A EP 3219842 A1 EP3219842 A1 EP 3219842A1
Authority
EP
European Patent Office
Prior art keywords
treatment
treatment additive
laundry
additive
measurement
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.)
Granted
Application number
EP17000029.3A
Other languages
German (de)
English (en)
Other versions
EP3219842B1 (fr
Inventor
Wilhelm Bringewatt
Engelbert Heinz
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.)
Herbert Kannegiesser GmbH and Co
Original Assignee
Herbert Kannegiesser GmbH and Co
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 Herbert Kannegiesser GmbH and Co filed Critical Herbert Kannegiesser GmbH and Co
Publication of EP3219842A1 publication Critical patent/EP3219842A1/fr
Application granted granted Critical
Publication of EP3219842B1 publication Critical patent/EP3219842B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/20—Washing liquid condition, e.g. turbidity
    • D06F2103/22—Content of detergent or additives
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/42—Detergent or additive supply
    • 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
    • D06F31/00—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies
    • D06F31/005—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies consisting of one or more rotating drums through which the laundry passes in a continuous flow
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • 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

Definitions

  • the invention relates to a method for the wet treatment of laundry according to the preamble of claim 1.
  • laundry treatment additives especially washing active substances, detergents, disinfectants, bleach, finishing agents or the like.
  • the addition of the at least one treatment additive to the laundry takes place in a certain dosage, ie amount which is dependent on the weight of the laundry, in particular of each to be treated laundry cost, the type of laundry and / or the treatment. For reasons of cost, it is endeavored to keep the amount of the at least one treatment additive to be metered in as small as possible. It has been shown that this type of dosage of the at least one treatment additive often fails to meet the requirements. For example, particularly heavy soiling of the laundry and some types of soiling cause the at least one treatment additive to be eliminated quickly and subsequently the wet treatment can not be sufficiently carried out. This is especially true for the disinfection of the laundry.
  • the at least one treatment additive is metered in with excess. This increases the cost of the wet treatment and also has an environmental impact, because especially with only usually dirty laundry containing the treatment liquid still contains a significant proportion of the added treatment additive.
  • the invention has for its object to provide a method for wet treatment of laundry, which is more economical in terms of the consumption of treatment additives and ensures safe disinfection.
  • a method for achieving this object comprises the measures of claim 1.
  • a certain time after the addition of the at least one treatment additive the current content thereof is measured at least once.
  • a replenishment of the at least one treatment additive is made. This replenishment preferably takes place until a desired content of the at least one treatment additive is reached.
  • the at least one treatment additive can thereby be added selectively to the degree of soiling of the particular laundry to be treated. For heavily soiled laundry so sufficient amounts of treatment additives can be added.
  • the at least one treatment additive it is preferably provided initially to add only a minimum amount of the at least one treatment additive to the laundry.
  • a minimum amount of the at least one treatment additive is initially added to the laundry which is always necessary even with lightly soiled laundry.
  • the minimum amount of the at least one treatment additive is determined, how much of it has been consumed or consumed in a certain time or period since the addition. So conclusions about the degree of contamination of the laundry are possible. It can then be selectively replenished at least one treatment additive. By this procedure, an overdose of the at least one treatment additive is effectively avoided.
  • the at least one treatment additive for washing several measurements at certain, preferably regular, intervals to perform.
  • the current content and / or the current concentration of the at least one treatment additive are measured.
  • the measurements taken at regular intervals after the initial addition of the at least one treatment additive can be used to determine how quickly the added treatment adjuncts are distorted. This is an indication of the degree of soiling of the laundry, so that then, if necessary, specifically at least one treatment additive can be replenished.
  • the method may be developed in such a way that, immediately after the addition of the predetermined amount of the at least one treatment additive, the content thereof is measured and from the time of this measurement the time interval or the time interval begins to run until the next measurement.
  • the next measurement represents a final measurement, which can be determined by comparison with the first measurement, which amount of added at least one treatment additive in the time passed between the two measurements of the soiled laundry already consumed, that is consumed is.
  • the actual consumption can then be extrapolated depending on the degree of soiling of the respective laundry to be treated, preferably of each individual item of laundry, and a subsequent addition of the at least one treatment additive accordingly take place.
  • a targeted subsequent dosing of the at least one treatment additive is carried out. From the time course of the decrease of the at least one treatment additive can preferably be determined by calculation, how high the total amount of at least one treatment additive must be in order to perform a sufficient wet treatment of the laundry can. In particular, it is thus possible to determine which total amount of detergents, disinfectants or other laundry aids is required. For example, this also ensures that the laundry is completely disinfected.
  • the amount of initially added treatment additive is subtracted to arrive at the amount of at least one treatment additive, after the last measurement, in particular the last final measurement, and / or the determination of the time course of the decrease of at least a treatment additive is required since the addition to the laundry.
  • a targeted post-dosing without significant excess amounts of at least one treatment additive done.
  • the at least one treatment additive is added to a treatment liquid with the laundry to be treated.
  • the at least one treatment additive is preferably mixed with the treatment liquid and the laundry located therein. If it is not a liquid treatment additive, this can also be solved when mixing in the treatment liquid.
  • the mixing and / or dissolution of the at least one treatment additive during and / or after the metering leads to a uniform concentration of the at least one treatment additive in the entire laundry item and the liquid bath receiving the laundry item with the treatment liquid.
  • the at least one measurement can lead to a representative average value of the concentration and / or the content of the at least one treatment additive in the laundry and the treatment liquid.
  • a further advantageous embodiment of the method provides that the at least one treatment additive of a treatment zone of a rotating or pivoting or rocking drivable elongated drum of a continuous washing machine is added.
  • the or each addition of the at least one treatment additive to the respective treatment zone of the continuous washing machine during the rotating, pivoting and / or rocking movement of the drum favors a uniform mixing of the at least one treatment additive with the laundry and the treatment liquid in the relevant treatment zone of the drum of the continuous washing machine.
  • the at least one treatment additive can be added to a prewash zone and / or a final wash zone of the continuous washing machine. Especially in the prewashing zone a large part of the at least one additional treatment consumed impurities or impurities in the laundry is still included. In this case, it is particularly important to selectively supply a quantity of the at least one treatment additive corresponding to the degree of soiling of the current laundry item to the laundry and / or the treatment liquid, so that the at least one treatment additive is sufficiently available for sufficient wet treatment of the laundry, but also not appreciable Overdose occurs.
  • FIGURE of the drawing shows a schematic side view of a trained as a continuous washing machine commercial washing machine.
  • a continuous washing machine 10 and designed as a dewatering press 11 drainage device are shown.
  • the dewatering press 11 is arranged in the passage direction 12 of the laundry through the continuous washing machine 10 behind the continuous washing machine 10.
  • At the location of the dewatering press 11 may also be arranged a laundry centrifuge behind the continuous washing machine 10.
  • the continuous washing machine 10 has an elongate drum 13, in which a plurality of identical or different chambers 14 is provided.
  • a plurality of identical or different chambers 14 In the drum 13 of the continuous washing machine 10 shown, thirteen chambers 12 which follow each other in the direction of passage 12 are provided.
  • the invention is not limited thereto.
  • the invention is also suitable for continuous washing machines 10 with a smaller or larger number of successive chambers 14.
  • the elongate drum 13 is rotatably driven about a central axis of rotation, which is located on a Länsgffenachse 15 of the continuous washing machine 10.
  • This rotating drive can open done in different ways.
  • the drum 13 may be driven in rotation, but also only rocking or pivoting. Then, the drum 13 is not rotationally driven with complete revolutions. But it is also conceivable, a combination of a rotating or pivoting or rocking drive the drum 11th
  • a plurality of successive treatment zones are formed, for example a pre-wash zone seen in the direction of flow 12, a subsequent final wash zone and optionally a rinse zone and / or a post-treatment zone behind it.
  • a pre-wash zone seen in the direction of flow 12
  • a subsequent final wash zone and optionally a rinse zone and / or a post-treatment zone behind it.
  • In the first chamber 14 of the prewash zone opens an inlet funnel 16 of the continuous washing machine 10. This laundry is loaded into the first chamber 14 of the continuous washing machine 10.
  • This first chamber 14 is also the first chamber of the prewashing zone.
  • a discharge chute 17 what wet in the continuous washing machine 10, namely at least washed, but optionally also rinsed and / or post-treated laundry, enters the dewatering press 11 or other drainage device.
  • the dewatering press 11 At least one dehydration of the washed laundry takes place in such a way that a part of the bound liquor from the continuous washing machine 10 is separated from the laundry.
  • the dewatering press 11 can also additionally serve to rinse the laundry coming from the continuous washing machine 10. Then the continuous washing machine 10 has no rinsing zone.
  • each chamber 14 of the continuous washing machine 10 or optionally also only in some chambers 14 are each a laundry item with a larger amount of laundry.
  • the laundry is treated in the continuous washing machine 10 in a bath with treatment liquid, in particular washed and optionally rinsed and / or equipped.
  • treatment liquid in particular washed and optionally rinsed and / or equipped.
  • at least one treatment additive is added to the laundry and the treatment liquid.
  • These may be washing-active substances, disinfectants and / or bleaching agents, but also other washing auxiliaries.
  • At least one treatment additive of the treatment liquid with the laundry located therein is added in the first chamber 14 of the prewashing zone, ie the first chamber 14 of the continuous washing machine 10.
  • At least one other chamber 14 of the continuous washing machine 10 at least one treatment additive may be added.
  • This may be, for example, the final wash zone, preferably the first chamber 14 thereof, the rinse zone if the continuous washing machine 10 has one, and / or an aftertreatment zone present in the continuous washing machine 10.
  • the individual zones of the laundry different treatment additives may be added, for example, in the prewash zone detergent, in another zone neutralizing agents, finishing agents, bleach and / or disinfectant.
  • the continuous washing machine 10 has suitable measuring devices for measuring the amount, the content and / or the concentration of the at least one treatment additive in the laundry and the treatment liquid.
  • Corresponding transducers are associated with those chamber 14 or those chambers 14 of the continuous washing machine 10, in which the treatment liquid and / or the laundry should be measured in terms of their content or the concentration of at least one treatment additive.
  • sampling lines optionally allocate at least one filter and assign the sensor of the respective sampling line.
  • the concentration detected by the at least one measuring transducer or the content of the at least one treatment additive in the treatment liquid is transmitted to an evaluation unit, not shown in the figure, which evaluates the measured values obtained and accordingly controls or regulates the quantity of the at least one treatment additive to be dosed or postdosed ,
  • the dewatering press 11 may also be assigned at least one measuring transducer, even if at least one treatment additive of the washed laundry is added in the dewatering press. This is especially true when the dewatering press 11 also serves to rinse the washed laundry.
  • the laundry items are treated in the chambers 14 with treatment liquid.
  • At least in one treatment zone of the continuous washing machine 10 at least one treatment additive is added to the treatment liquid.
  • different treatment additives may be added to the treatment liquid with the laundry therein.
  • at least one treatment additive can be added to the laundry still having the bound liquor of the treatment liquid.
  • the addition of the at least one treatment additive to the laundry with the treatment liquid is preferably carried out with rotationally driven drum 13 of the continuous washing machine 10, namely with circumferentially rotating driven drum 13 or in opposite directions about pitch circle movements of rotationally driven drums 13.
  • rotationally driven drum 13 of the continuous washing machine 10 namely with circumferentially rotating driven drum 13 or in opposite directions about pitch circle movements of rotationally driven drums 13.
  • the first chamber 14 of the continuous washing machine 10 ie the first chamber of the prewash zone
  • a treatment additive such as detergent
  • the added treatment additive is mixed at least with the treatment liquid in the relevant chamber 14, preferably also the laundry of the laundry item in the chamber 14.
  • the treatment additive is supplied to the first chamber with the laundry item contained therein, together with its treatment liquid.
  • This subset of the treatment additive corresponds to the minimum amount that experience has shown to be required to treat least soiled laundry. Due to the known amount of added treatment additive may be on the content or concentration of the treatment additive at the time of addition to the treatment liquid be closed with the laundry of the respective laundry item. However, it is also conceivable to measure the concentration and / or the content thereof in preferably the treatment liquid of the laundry immediately after adding the minimum quantity of the treatment additive.
  • a measurement preferably a further or repeated measurement, of the content of the treatment additive or the concentration thereof in the liquid with the laundry takes place in the first chamber 14.
  • This measurement represents a first final measurement.
  • the amount of treatment additive consumed in the time interval is determined in particular. Due to the time from the addition of the treatment additive to the measurement or final measurement, the time course of the consumption of the treatment additive can be determined.
  • the method described above also proceeds when two or more different treatment additives are added and / or admixed in the same chamber 14 of the treatment liquid together with the laundry item located therein.
  • all treatment additives can be measured simultaneously.
  • the process described above also proceeds to carry out the on-demand metering of at least one treatment additive in at least one subsequent zone of the continuous-flow washing machine 10.
  • This may be the final wash zone of a rinse zone optionally present in the continuous washing machine 10 and / or an aftertreatment zone of the continuous washing machine 10. It is also conceivable, however, to carry out the metered-dose metering of at least one treatment additive in the dewatering press 11 behind the continuous-flow washing machine 10 or another dewatering device.
  • the invention is also suitable for other commercial washing machines, so it is not limited to the embodiments described above with the continuous washing machine 10. Therefore, the invention can also be used in other washing machines used in commercial laundries, such as washer-extractors.
  • the method according to the invention then proceeds in exactly the same way, but is not added in at least one of the successive zones, but rather in at least one of the treatment phases of the washing machine taking place successively in the same, single chamber of the drum.
EP17000029.3A 2016-03-17 2017-01-09 Procédé de traitement par voie humide de linge Active EP3219842B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016003200.6A DE102016003200A1 (de) 2016-03-17 2016-03-17 Verfahren zur Nassbehandlung von Wäsche

Publications (2)

Publication Number Publication Date
EP3219842A1 true EP3219842A1 (fr) 2017-09-20
EP3219842B1 EP3219842B1 (fr) 2021-11-10

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EP17000029.3A Active EP3219842B1 (fr) 2016-03-17 2017-01-09 Procédé de traitement par voie humide de linge

Country Status (4)

Country Link
EP (1) EP3219842B1 (fr)
DE (1) DE102016003200A1 (fr)
DK (1) DK3219842T3 (fr)
ES (1) ES2905358T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3896143A1 (fr) * 2020-04-16 2021-10-20 Herbert Kannegiesser GmbH Procédé de traitement par voie humide du linge
EP4074878A1 (fr) * 2021-04-16 2022-10-19 Oy Christeyns Nordic Ab Procédé de lavage de textiles en machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911028A1 (de) * 1988-04-07 1989-10-26 Vesa Hakulinen Verfahren und vorrichtung zum zumessen von waschmittel in eine waschloesung
DE4204806A1 (de) * 1992-02-18 1993-08-19 Henkel Kgaa Waschverfahren fuer gewerbliche waeschereien
DE19529787A1 (de) * 1995-08-12 1997-02-13 Foron Hausgeraete Gmbh Verfahren und Einrichtung zur füllstandsunabhängigen Messung der Oberflächenspannung flüssiger Substanzen
DE102007011119A1 (de) * 2007-03-07 2008-09-11 BSH Bosch und Siemens Hausgeräte GmbH Waschmaschine mit automatischer Regelung des Waschprozesses
EP1997948A1 (fr) * 2007-05-29 2008-12-03 Herbert Kannegiesser GmbH Procédé de traitement humide de pièces de linge
US20140259441A1 (en) * 2013-03-15 2014-09-18 Whirlpool Corporation Methods and compositions for treating laundry items

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911028A1 (de) * 1988-04-07 1989-10-26 Vesa Hakulinen Verfahren und vorrichtung zum zumessen von waschmittel in eine waschloesung
DE4204806A1 (de) * 1992-02-18 1993-08-19 Henkel Kgaa Waschverfahren fuer gewerbliche waeschereien
DE19529787A1 (de) * 1995-08-12 1997-02-13 Foron Hausgeraete Gmbh Verfahren und Einrichtung zur füllstandsunabhängigen Messung der Oberflächenspannung flüssiger Substanzen
DE102007011119A1 (de) * 2007-03-07 2008-09-11 BSH Bosch und Siemens Hausgeräte GmbH Waschmaschine mit automatischer Regelung des Waschprozesses
EP1997948A1 (fr) * 2007-05-29 2008-12-03 Herbert Kannegiesser GmbH Procédé de traitement humide de pièces de linge
US20140259441A1 (en) * 2013-03-15 2014-09-18 Whirlpool Corporation Methods and compositions for treating laundry items

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3896143A1 (fr) * 2020-04-16 2021-10-20 Herbert Kannegiesser GmbH Procédé de traitement par voie humide du linge
EP4074878A1 (fr) * 2021-04-16 2022-10-19 Oy Christeyns Nordic Ab Procédé de lavage de textiles en machine

Also Published As

Publication number Publication date
DE102016003200A1 (de) 2017-09-21
ES2905358T3 (es) 2022-04-08
EP3219842B1 (fr) 2021-11-10
DK3219842T3 (da) 2022-01-17

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