DE3540335C2 - - Google Patents
Info
- Publication number
- DE3540335C2 DE3540335C2 DE3540335A DE3540335A DE3540335C2 DE 3540335 C2 DE3540335 C2 DE 3540335C2 DE 3540335 A DE3540335 A DE 3540335A DE 3540335 A DE3540335 A DE 3540335A DE 3540335 C2 DE3540335 C2 DE 3540335C2
- Authority
- DE
- Germany
- Prior art keywords
- wash liquor
- wash
- washing
- liquor
- chlorine
- 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 - Fee Related
Links
- 238000005406 washing Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 8
- OSVXSBDYLRYLIG-UHFFFAOYSA-N chlorine dioxide Inorganic materials O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 7
- 239000004155 Chlorine dioxide Substances 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 4
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910001902 chlorine oxide Inorganic materials 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 230000000721 bacterilogical effect Effects 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000005284 excitation Effects 0.000 claims 1
- 239000003205 fragrance Substances 0.000 claims 1
- 239000003599 detergent Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009987 spinning Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000012487 rinsing solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- -1 optical up brighten Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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
-
- 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
- D06F39/20—Arrangements for water recovery
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/40—Specific cleaning or washing processes
- C11D2111/46—Specific cleaning or washing processes applying energy, e.g. irradiation
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/40—Specific cleaning or washing processes
- C11D2111/48—Regeneration of cleaning solutions
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Detergent Compositions (AREA)
- Physical Water Treatments (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Waschen von Wäsche nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for washing laundry after Preamble of claim 1.
In der Bundesrepublik Deutschland werden jährlich mehr als 700 000 t Waschmittel hergestellt und verbraucht, in Europa sind es 3 Mio Tonnen und weltweit 8 Mio Tonnen. Die davon ausgehende Gewässer- und Grundwasserbelastung ist beträchtlich. Trotz teilweiser Phosphatsubstitution sowie weitgehender Verwendung biologisch abbaubarer Tenside in den Waschmitteln und Einführung biologischer Klärstufen für Abwasser kommt dem Gewässerschutz ein hoher Stellenwert in der gesamten Umweltproblematik zu, da die Hauptmenge der Wasch-, Spül- und Reinigungsmittel - mit welcher Zusammensetzung auch immer - letzten Endes doch in störender Weise in die Gewässer gelangt.In the Federal Republic of Germany, more than 700,000 tons are produced annually Detergent produced and used, in Europe it is 3 million tons and 8 million tons worldwide. The assumption Water and groundwater pollution is considerable. Despite partial Phosphate substitution and extensive use of biodegradable Surfactants in detergents and introduction of biological clarification stages for Wastewater has a high priority in water protection as a whole Environmental problems because the majority of the Detergents, dishwashing detergents and cleaning agents - with whatever composition always - in the end it gets into the water in a disturbing way.
Um die Umwelt durch stark verschmutztes Abwasser aus Waschmaschinen zu entlasten, wird bei einem aus der DE-OS 35 13 939 bekanntgewordenen Verfahren zum Waschen von Wäsche die Waschlauge für mehrmalige Waschvorgänge in einem geschlossenen Kreislauf und die Spüllauge in einem offenen Kreislauf geführt, wobei ein Teil der Spüllauge gespeichert und als Vorwaschlauge wieder verwendet wird. Die im Kreislauf geführte Waschlauge für mehrmalige Waschvorgänge kann dabei zur Aufbereitung durch eine Filtervorrichtung gepumpt werden. Die alleinige Filterung der Waschlauge reicht aber nicht aus, diese so weit aufzubereiten, daß mit einer solchen Waschlauge auch zufriedenstellende Waschergebnisse erreicht werden können.To protect the environment from heavily polluted sewage from washing machines relieve, is known from DE-OS 35 13 939 Process for washing laundry the wash liquor for repeated Washes in a closed circuit and the soapy water in an open circuit, with part of the rinsing solution saved and used again as prewash. The in Circulated wash liquor for repeated washing processes can be used can be pumped through a filter device for processing. The filtering the wash liquor alone is not sufficient, so far prepare that with such a wash liquor also satisfactory Washing results can be achieved.
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, das Verfahren der in Rede stehenden Art weiter zu verbessern, um auch bei einer mehrmaligen Verwendung der Waschlauge noch gute und einwandfreie Waschergebnisse zu erzielen. Based on this prior art, the object of the invention to further improve the procedure of the type in question, to still be good and even after repeated use of the wash liquor to achieve flawless washing results.
Die Lösung dieser Aufgabe gemäß der Erfindung ist dem kennzeichnenden Teil des Patentanspruchs 1 zu entnehmen.The solution to this problem according to the invention is the characteristic Part of claim 1 can be seen.
Vorteilhafte weitere Verfahrensschritte sind in den Unteransprüchen angegeben.Advantageous further process steps are in the subclaims specified.
Durch die vorgeschlagenen Maßnahmen werden in der Waschlauge befindliche Bakterien und sonstige Keime abgetötet sowie störende Geruchsstoffe beseitigt.The proposed measures are in the wash liquor Bacteria and other germs killed as well as annoying odorous substances eliminated.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher erläutert. The invention will now be described with reference to an embodiment explained.
Die in einem Haushalt anfallende zu reinigende Wäsche wird zunächst in beispielsweise drei Gruppen vorsortiert, z. B. sogenannte 30°-Wäsche, 60°-Wäsche und 90°-Wäsche. Es wird nun zunächst die 30°-Wäsche in die Waschmaschine getan und manuell oder automatisch die benötigten Waschmittel- sowie Leitungswassermengen hinzugefügt. Es entsteht eine Wasch lauge, die im Verlaufe des gewählten 30°-Waschprogramms auf eine Waschtemperatur von 30°C erhitzt wird. Nach Beendigung des Hauptwaschganges wird nun die 30°C warme Waschlauge in einen Vorratsbehälter gepumpt und nicht, wie derzeit üblich, in das Kanalisationsnetz. Es ist zweck mäßig, die Waschlauge dabei mindestens einmal durch ein Filter, vorteilhafterweise ein Wegwerffilter auf Aktiv kohlebasis, zu pumpen, so daß in der Waschlauge vorhandene störende Bestandteile, z. B. Schmutz- und/oder Textilteil chen ausgefiltert werden. Es ist weiterhin zweckmäßig, die Wäsche anschließend durch einen Schleudervorgang teilweise zu trocknen, damit zumindest ein Teil der an die Wäsche gebundenen Waschlauge, die sogenannte gebundene Flotte, aus der Wäsche entfernt wird. Auch dieser beim Schleudern freiwerdende Teil der Waschflotte wird in den Vorratsbe hälter gepumpt. In der Wäsche verbleibt lediglich ein geringer Teil der Waschlauge, die anschließend zweckmäßi gerweise durch mehrere Klarspülvorgänge mit Leitungswasser entfernt wird. Es ist zweckmäßig, die zumindest nach dem ersten Klarspülvorgang entstehende Waschlauge ebenfalls in den Vorratsbehälter zu pumpen. Die bei den weiteren Klar spülvorgängen anfallenden Abwässer besitzen lediglich eine vernachlässigbare Konzentration der Waschlauge und werden daher in das Kanalisationsnetz gepumpt. Nach den Klarspülvorgängen und einem möglichen Schleudern und/oder Trocknen der Wäsche wird diese aus der Waschmaschine genommen. The laundry to be cleaned in a household becomes initially sorted into, for example, three groups, e.g. B. so-called 30 ° wash, 60 ° wash and 90 ° wash. It will first put the 30 ° wash into the washing machine and manually or automatically the required detergent as well Tap water quantities added. A wash is created lye during the selected 30 ° wash program is heated to a washing temperature of 30 ° C. To The main wash cycle is now 30 ° C warm Wash liquor pumped into a storage container and not how currently common in the sewer network. It is purpose moderate, the wash liquor at least once Filter, advantageously a disposable filter on active coal base to pump so that existing in the wash liquor disruptive components, e.g. B. dirt and / or textile part be filtered out. It is still appropriate that Then partially wash the laundry by spinning to dry, so that at least part of the laundry bound wash liquor, the so-called bound liquor, is removed from the laundry. This one too when spinning part of the washing liquor released is in the storage tank pumped. Only one remains in the laundry small part of the wash liquor, which is then expedient partly through several rinse cycles with tap water Will get removed. It is appropriate to at least after the The first rinse-off wash liquor also formed to pump the reservoir. The other clear wastewater generated only has one negligible concentration of the wash liquor and therefore pumped into the sewer network. After the rinse cycle and possible spinning and / or drying the laundry is removed from the washing machine.
Unmittelbar daran anschließend wird nun die zu reinigende 60°-Wäsche in die Waschmaschine gefüllt. Diese pumpt nun zunächst die noch ungefähr 30°C warme Waschflotte aus dem Vorratsbehälter in den Waschbottich und ergänzt automa tisch, sofern nötig, Waschmittel- und/oder Wassermenge. Dieser Ergänzungsvorgang wird gesteuert oder geregelt durch mindestens einen Sensor, welcher den Zustand der Waschflotte überwacht. Dabei ist ein Nachdosieren spezieller, sich schnell verbrauchender und/oder einmaliger Waschzu sätze möglich, z. B. ein abgestimmtes Gemisch von Bleich mitteln, Bleichaktivatoren, Inhibitoren, optischen Auf hellern, Desinfektionsmitteln und/oder Enzymen bei beson deren Anforderungen an die Reinigungswirkung.Immediately afterwards is the one to be cleaned 60 ° wash in the washing machine. This is now pumping first the wash liquor from the Storage container in the wash tub and added automa table, if necessary, amount of detergent and / or water. This supplementary process is controlled or regulated by at least one sensor which detects the state of the Wash liquor monitored. In this case, a dosing of special, quickly consuming and / or one-time wash sentences possible, e.g. B. a balanced mixture of bleach agents, bleach activators, inhibitors, optical up brighten, disinfectants and / or enzymes in particular their requirements for the cleaning effect.
Anschließend wird die Waschflotte mit der darin befindli chen Wäsche auf die benötigte Waschtemperatur von 60°C erhitzt. Es ist ersichtlich, daß die noch warme Wasch flotte dabei lediglich um ungefähr 30°C erhitzt werden muß, so daß gegenüber derzeit üblichen Waschverfahren eine erhebliche Energieeinsparung erfolgt. Nach dem anschließenden Hauptwaschgang sowie möglicherweise einem Klarspül vorgang wird die Waschflotte wie beschrieben wieder in den Vorratsbehälter gepumpt. Anschließend wird die Wäsche klargespült, geschleudert und der Waschmaschine entnommen.Then the wash liquor with the is in it wash to the required washing temperature of 60 ° C heated. It can be seen that the still warm wash brisk only be heated by about 30 ° C must, so that compared to currently customary washing processes considerable energy savings are made. After the subsequent one Main wash and possibly a rinse aid the wash liquor is returned to the process as described Pumped reservoir. Then the laundry rinsed clean, spun and removed from the washing machine.
Anschließend wird die zu reinigende 90°-Wäsche in die Waschmaschine gefüllt. Es erfolgt der gleiche beschriebene Waschvorgang wie bei der 60°-Wäsche, jedoch mit dem Unter schied, daß die Waschlauge um weitere ungefähr 30°C auf eine Waschtemperatur von 90°C erhitzt wird. Nach Beendi gung des Hauptwaschvorganges sowie mindestens des ersten Klarspülvorganges wird die Waschlauge wieder, wie be schrieben, in den Vorratsbehälter gepumpt und verbleibt dort, z. B. einige Tage, bis wieder Waschtag ist. Die nun abgekühlte Waschlauge ist dann wieder benutzbar. Die mehr mals verwendbare Waschlauge befindet sich in einem Kreis laufsystem, das nahezu geschlossen ist, so daß die Umwelt belastung erheblich verringert wird. Dabei bestimmt die Lebensdauer dieser Waschlauge auf der Basis waschaktiver Substanzen (mit gelösten Gerüststoffen zur Einmal-Enthär tung, jedoch ohne Ballaststoffe) die Wirtschaftlichkeit der Umweltfreundlichkeit des Verfahrens. Aber allein eine nur zehnmalige Wiederverwendbarkeit würde den Vollwasch mittelbedarf auf ungefähr 10% des heutigen Bedarfs redu zieren. Insbesondere betrifft dies die Enthärterkomponen ten wie Phosphat (derzeit 40 000 t/a), Komplexbildner und Zeolithe.Then the 90 ° wash to be cleaned is placed in the Washing machine filled. The same is described Washing process as for the 60 ° wash, but with the bottom decided that the wash liquor rose another about 30 ° C a washing temperature of 90 ° C is heated. After finishing main wash and at least the first The rinsing solution is rinsed again, as be wrote, pumped into the reservoir and remains there, e.g. B. a few days until it is washing day again. The now cooled wash liquor can then be used again. The more The wash liquor that can be used is in a circle running system that is almost closed, so the environment burden is significantly reduced. It determines the Lifespan of this wash liquor on the basis of active washing Substances (with dissolved builders for single softening tion, but without fiber) the economy the environmental friendliness of the process. But only one only ten times reusability would make the full wash Reduce resources to approximately 10% of today's needs adorn. This applies in particular to the softening components such as phosphate (currently 40,000 t / a), complexing agents and Zeolites.
Zur Beseitigung bzw. Abtötung von Bakterien und sonstigen Keimen sowie zur chemischen Umwandlung störender Geruchs stoffe wird aktiver Sauerstoff in Form ozonhaltiger Luft (oder Chlor oder Chlordioxid ent haltender oder bildender Stoffe) der Waschlauge zugeführt. Eine wirtschaftlich günstige Lösung hierfür ist die Einstrahlung von UV-Licht mit Hilfe einer UV-Lampe, z. B. eines Entkeimungs- oder Ozonstrahlers.For the elimination or killing of bacteria and other Germination and chemical conversion of unpleasant odors active oxygen in materials Form of air containing ozone (or chlorine or chlorine dioxide holding or forming substances) of the wash liquor. An economically favorable solution for this is Irradiation of UV light using a UV lamp, e.g. B. a disinfectant or ozone lamp.
Claims (6)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853540335 DE3540335A1 (en) | 1985-11-14 | 1985-11-14 | Method for the cleaning of laundry |
FR868615334A FR2589895B1 (en) | 1985-11-14 | 1986-11-04 | METHOD FOR WASHING OBJECTS, PARTICULARLY LAUNDRY, IN A DOMESTIC WASHING MACHINE. |
IT22279/86A IT1198081B (en) | 1985-11-14 | 1986-11-10 | PROCEDURE FOR THE WASHING OF OBJECTS, IN PARTICULAR LINEN |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853540335 DE3540335A1 (en) | 1985-11-14 | 1985-11-14 | Method for the cleaning of laundry |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3540335A1 DE3540335A1 (en) | 1987-05-21 |
DE3540335C2 true DE3540335C2 (en) | 1993-08-05 |
Family
ID=6285932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853540335 Granted DE3540335A1 (en) | 1985-11-14 | 1985-11-14 | Method for the cleaning of laundry |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3540335A1 (en) |
FR (1) | FR2589895B1 (en) |
IT (1) | IT1198081B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3913355A1 (en) * | 1989-04-22 | 1990-10-25 | Licentia Gmbh | Program-controlled washing machine - with device for intermediate storage of used washing and/or rinsing soln. |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3805565A1 (en) * | 1988-02-23 | 1989-08-31 | Gut Ges Umweltschonende Tech | METHOD AND DEVICE FOR CLEANING DIRTY PARTS |
DE3935621A1 (en) * | 1989-10-26 | 1991-05-02 | Herbertz Heinz | METHOD AND DEVICE FOR WASHING AND DISINFECTING IN A CONTINUOUS WASHING MACHINE |
DE4023024A1 (en) * | 1990-07-19 | 1992-01-23 | Gut Ges Umweltschonende Tech | Washing process - uses machine with filter and several storage containers which conduct rinsing liquor from 2nd and 3rd rinsing into joint container |
EP0828639B1 (en) * | 1994-11-11 | 1999-01-20 | Wilhelm Seibusch | Vehicle treatment process and installation |
DE19700155A1 (en) * | 1997-01-07 | 1998-07-09 | Henkel Kgaa | Continuous washing process with waste water recirculation |
TR200703573A2 (en) * | 2007-05-24 | 2008-09-22 | Başçavuşoğlu Güneş | Automatic washing machine for color and white textile products |
DE102008042749A1 (en) * | 2008-10-10 | 2010-04-15 | BSH Bosch und Siemens Hausgeräte GmbH | Method for cleaning a waste liquor of a washing or cleaning machine and machine for carrying out the method |
DE102012205827B4 (en) * | 2012-04-11 | 2023-08-31 | BSH Hausgeräte GmbH | Method for assessing an aqueous liquid to be stored or stored in a household appliance and a household appliance suitable for this purpose |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE187321C (en) * | ||||
US1502270A (en) * | 1920-03-16 | 1924-07-22 | Frank L Rosenau | Process of recovering laundry material |
US2959042A (en) * | 1960-01-04 | 1960-11-08 | Gen Electric | Control system for wash water storage and re-use system |
GB1346570A (en) * | 1971-07-15 | 1974-02-13 | ||
DE2754254A1 (en) * | 1977-12-06 | 1979-06-07 | Sanner Axel | Laundering domestic washing automatically in washing machine - with pre-wash and main wash by intermediate storage of lye and supplying to following pre-wash or main wash |
DE3118973A1 (en) * | 1981-05-13 | 1982-12-02 | Lang Apparatebau GmbH, 8227 Siegsdorf | "DOSING METHOD FOR SUPPLYING A WASHING MACHINE WITH DETERGENT CONCENTRATE AND DEVICE FOR CARRYING OUT THE METHOD" |
DE3123899A1 (en) * | 1981-06-16 | 1983-01-05 | Ernst Dipl.-Kfm. Dr. 7100 Heilbronn Haag | Washing machine with ultraviolet radiation disinfection |
DD248156A1 (en) * | 1984-05-29 | 1987-07-29 | Inst Kommunalwirtschaft | METHOD FOR FLOTTENING WHILE WASHING WAESCHE |
-
1985
- 1985-11-14 DE DE19853540335 patent/DE3540335A1/en active Granted
-
1986
- 1986-11-04 FR FR868615334A patent/FR2589895B1/en not_active Expired
- 1986-11-10 IT IT22279/86A patent/IT1198081B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3913355A1 (en) * | 1989-04-22 | 1990-10-25 | Licentia Gmbh | Program-controlled washing machine - with device for intermediate storage of used washing and/or rinsing soln. |
Also Published As
Publication number | Publication date |
---|---|
DE3540335A1 (en) | 1987-05-21 |
FR2589895A1 (en) | 1987-05-15 |
IT1198081B (en) | 1988-12-21 |
FR2589895B1 (en) | 1989-10-20 |
IT8622279A0 (en) | 1986-11-10 |
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