EP1076127A2 - Method and device for wet treatment of laundry - Google Patents

Abstract

The method involves washing the items and then subjecting them to wet treatment, after which a large part of the liquid is removed from the wash items. At least the liquid for post-treatment of the wash items is temporarily stored and can be fed back again for post-treatment if required. An Independent claim is also included for an arrangement for wet handling of wash items.

Description

The invention relates to a method for wet treatment of 6. Items of laundry according to the preamble of claim 1 and 6 respectively and a device for the wet treatment of laundry according to the preamble of claims 10 and 13, respectively.

During wet treatment, especially when washing with a subsequent fitting of items of laundry liquids are used, which are in the is essentially water, especially for after-treatment, for example, to equip the laundry accessories contains. In different treatment sections the liquid unbound from the laundry (in technical jargon called "free fleet") or removed from the laundry Cut. This liquid is partly reused namely the essentially still dry items Started wet treatment, especially for flushing the laundry into the washing zone.

The return of liquid removed from the aftertreatment for washing the laundry items before wet treatment So far there are various disadvantages: In the after-treatment resulting liquid, which is a post-treatment agent, for example has a finishing agent, has on return for washing the laundry in the disadvantage that the finishing agent or another post-treatment agent only once is usable. It must then be used for every new post-treatment new post-treatment agent, especially finishing agent, the Post-treatment process can be added. In addition, the after-treatment liquid from the pH value angry. For washing, however, the pH is alkaline liquid required. The liquid from the aftertreatment must therefore be converted before washing the laundry ("neutralized" in technical jargon) are added of detergent. This means an increased use of detergent required.

Liquids that occur when washing the laundry items often about a temperature that is so high that it is unsuitable for washing in delicate laundry items. On the other hand, there is liquid at the end of the rinsing zone. namely relatively pure water, except for the room temperature cooled down. This liquid will wash in If the laundry items are used, they must be in the washing zone again be heated. The disadvantages mentioned affect the Economy of wet treatment of the laundry.

The invention is based on the object, a method and a device for more economical wet treatment of To create laundry items.

A procedure for solving this problem shows the measures of Claim 1 on. Because of the liquid for post-treatment the laundry in a separate storage container collected and from this, if necessary, a later post-treatment is supplied again, the aftertreatment with a circulated after-treatment liquid. The Post-treatment liquid can therefore be used several times become. The result is that with a larger amount of After-treatment liquid, for example a liquid with an equipment for equipping the laundry items, can be worked, whereby the post-treatment (equipment) the laundry items are done more effectively and, above all, faster can. There is not that much going on in the method according to the invention Aftertreatment agent lost because this unlike the State of the art not after the aftertreatment immediately used to wash in new laundry where an ineffective consumption of the retrofit occurs and also no conversion of the acidic pH to an alkaline pH value (> 7) is required.

It is also planned to follow up with the post-treatment the liquid used for this from the after-treated laundry items separate, for example by pressing and the resulting liquid for aftertreatment (aftertreatment liquid) then the designated storage container feed. This ensures that most of it the after-treatment liquid is recovered, so to speak and for the subsequent post-treatment of other items of laundry can be used.

It is also envisaged that there will be several aftertreatments Arrange storage containers, one for the acidic aftertreatment liquid and another for those not for Post-treatment alkaline liquid, as far as it is not bound to the laundry (free fleet) by the Separate items of laundry and to the storage container provided is conducted before the post-treatment of the laundry he follows. The liquid not used for after-treatment (Rinsing liquid) is thus with the aftertreatment liquid not blended so they don't dilute them.

According to a development of the method, the Items of laundry squeezed out at the end of wet treatment if necessary in the storage container for after-treatment liquid or passed into the rinsing liquid container become. This makes it possible, depending on whether the laundry items to be subjected to an aftertreatment, aftertreatment liquid in the designated storage container and others Liquid, especially rinsing liquid, in the others, also only for these storage containers conduct. The method can therefore be used universally because it does not always require aftercare is made.

The liquid not used for aftertreatment (rinsing liquid) is made from the storage container provided for this purpose if necessary the laundry items to be washed, in particular for washing the laundry into a washing zone. Because this liquid has an alkaline pH that is also required for washing and rinsing Liquid not to be neutralized by detergent. The method according to the invention therefore also serves to save of detergent. Is in the storage tank for the after-treatment liquid there may be too much fluid of this type if necessary, these can also be washed in for washing Items of laundry can be used in the washing zone.

Another method for solving the problem mentioned at the beginning has the measures of claim 6. Accordingly not only the non-post-treatment liquid on the End of wet treatment in a special storage container collected; it will be in another separate Storage tanks also accumulating during wet treatment Liquid collected. This liquid usually has one higher temperature than that at the end of the wet treatment Liquid. According to the invention, if necessary, the process of Wet treatment resulting in warmer liquid with the end the colder liquid resulting from wet treatment mixed that the mixed liquid is a temperature has that lies within a temperature spectrum that is suitable for washing in laundry items to be washed. On this way the colder or cold liquid will end up needing wet treatment and it can possibly a liquid which is too high, used in the course of the wet treatment by passing through the colder liquid that is in the Aftertreatment occurs, is cooled.

According to a development of the method, the quantity and preferably also the temperature of the liquids in the Storage containers measured, in particular continuously, so that it is always known what amount of liquid in the individual storage tanks is available and what temperature currently has the liquid in the respective storage container. As a result, it can preferably be computationally or computer-controlled a liquid is formed with a temperature be used to wash the laundry into the washing zone suitable is. Are in one or the other storage container different amounts of liquid, then the temperature of the mixed liquid can be chosen so that, on the one hand, they are in the temperature range for floating liquid to be used, on the other hand from that Storage container that contains more liquid, a corresponding one larger amount of liquid is withdrawn so always have a certain minimum stock in every storage container Liquid remains to wash in the laundry items.

A device for solving the problem mentioned at the beginning has the features of claim 10. Accordingly, at least two separate storage containers are provided, namely at least one storage container belonging to the aftertreatment zone is assigned and a further storage container that the drainage device assigned. In this way, the in the aftertreatment zone before performing the aftertreatment liquid to be separated that does not contain any after-treatment agents has, in the designated storage container be directed. The following post-treatment aftertreatment liquid separated at the drainage device can the separate Storage containers are supplied. After-treatment liquid acidic from pH and not for post-treatment Alkaline liquid, especially rinsing liquid, can be found in the separate storage containers accordingly separated from each other be temporarily stored. The after-treatment liquid can from the designated storage tank in the circuit again a subsequent aftertreatment are fed during the (alkaline) liquid not used for after-treatment in the other storage container in front of the device can be used to wash new items into the washing zone.

According to a further development of the device, a Drain pipe for the liquid from the drainage device to the storage tank for the after-treatment liquid and to the storage tank for those not for aftertreatment to serve liquid. Through an appropriate valve in the drain pipe can at the drainage device collected liquid in either the storage container for the after-treatment liquid or in the storage tank for the liquid not used for aftertreatment become. This optionally drains the liquid into one or other storage container opens the possibility with the Device to carry out an aftertreatment only optionally. There will be no after-treatment in the after-treatment zone performed, it can be used to rinse the laundry be, then only rinsing liquid at the drainage device accrues, which is consequently also in the storage container for this liquid, namely rinsing liquid can be. This makes the device according to the invention universally applicable.

It is also intended to go from the storage container at least the liquid not used for aftertreatment a pipe to the beginning of the device in front of the washing zone to perform while from the storage container to the to After-treatment liquid at least one pipe is led to the aftertreatment zone. Furthermore can the storage tank for the after-treatment liquid can also be connected to the pipeline which leads to the beginning of the device, whereby excess or no longer needed, especially used, After-treatment liquid still to be washed in washing laundry items can be used.

Another device for solving the above Task has the features of claim 13. So is a storage container to hold the not for post-treatment serving liquid at the end of the device and at least another storage container to hold warmer liquid, that occurs in the course or in the initial area of the rinsing zone, intended. These storage tanks take part in different Placing the device on the liquid, which has different temperatures because the Temperature especially of the rinsing liquid at the end of the device decreases. From these storage containers can then Liquid at the desired temperature at the start of the device fed to wash items to be washed become. In particular, it is possible to use both storage containers Liquids of different temperatures in such Quantities can be seen that the mixture of different Liquids originating from liquids above a temperature has that within a temperature range of each in the laundry zone to be sponged lies.

The separate storage containers for different liquids Temperatures are with a level meter and a Provide temperature meter. This allows both the in amount of liquid present in each storage tank as well determine the temperature of the same. It can then go through Withdraw a targeted amount of fluid from each Storage tank a liquid mixture with the desired one Temperature are formed. This temperature can vary of the existing in the respective storage container The amount of liquid can be adjusted so that from the respective Storage container existing liquid itself Forms liquid mixture with a temperature that within or at the upper or lower limit of the temperature spectrum to wash in the laundry in question.

Fig. 1

eine schematische Seitenansicht eines ersten Ausführungsbeispiels der Vorrichtung, und

Fig. 2

eine schematische Seitenansicht eines zweiten Ausführungsbeispiels der Vorrichtung.

Preferred exemplary embodiments of the invention are explained in more detail below with reference to the drawing. In this show:

Fig. 1

is a schematic side view of a first embodiment of the device, and

Fig. 2

is a schematic side view of a second embodiment of the device.

The device shown here is a Continuous washing machine 10 with additional components partially shown. In the continuous washing machine 10 are not shown items of laundry washed and if necessary then subjected to post-treatment. In the embodiment shown the after-treatment is a Equipment of laundry items.

The continuous washing machine 10 has an elongated one Drum 11 rotating about a horizontal longitudinal central axis 12 is drivable. The drum 11 of the continuous washing machine 10 is divided into different zones, namely a washing zone 13, a rinsing zone 14 and a finishing zone 15. The washing zone 13, Rinse zone 14 and finishing zone 15 are in treatment direction 16 successively in the drum 11 of the continuous washing machine 10 arranged. The washing zone 13 and the rinsing zone 14 are formed of several consecutive in the longitudinal direction of the drum 11 Wash chambers 17 and rinse chambers 18, of which only a few are shown in the figures. The number of consecutive Washing chambers 17 and rinsing chambers 18 of the washing zone 13 and the rinsing zone 14 can depend on the size and performance the continuous washing machine 10 vary. The equipment zone 15 only needs one in the device according to the invention to have only equipment chamber 18. If necessary, however several successive equipment chambers 19 are also provided his. In front of the drum 11 of the continuous washing machine 10 is a Input funnel 20 is provided, via which the to be washed Items of laundry in the washing zone 13 of the continuous washing machine 10 can be promoted. Feeding in Items of laundry in the continuous washing machine 10 takes place under Adding liquids, especially water, which causes the im The area of the input hopper 20 is still essentially dry Items of laundry moistened and together with a flow of liquid conveyed into the continuous washing machine 10, namely be washed in.

Behind the continuous washing machine 10 is a drainage device arranged, which is in the embodiment shown is a dewatering press 21. The Completely washed and possibly equipped laundry items leave the continuous washing machine 10 via the finishing chamber 19 and are by this via a short connecting slide 22 passed directly into the dewatering press 21. In the dewatering press 21, the laundry items discharged from the continuous washing machine 10 Liquid separated from the laundry, especially by squeezing the liquid out of the laundry, the thereafter only with a relatively low residual moisture so that only little liquid remains on the laundry is bound (bound fleet). The laundry items 21 separated in the area of the dewatering press, in particular squeezed out, liquid is in a collecting container 23 collected under the dewatering press 21.

In the device according to the embodiment of FIG. 1 both the dewatering press 21 and the finishing chamber 19 each associated with a storage container 24 and 25. The two Storage tanks 24 and 25 are designed to hold liquids, preferably different liquids, from each other record separately. The liquid in the storage container 24 can This prevents the liquid from entering the storage container Mix 25. In the illustrated embodiment, the Storage container together, preferably by one central partition the receiving spaces of the storage containers from each other are separated. These recording rooms can be the same size but also recording rooms of different sizes if required exhibit. It is also conceivable for the storage containers 24 and 25 physically and / or spatially completely apart separate so that separate receptacles for different liquids through separate receptacles 24 and 25 are formed.

From the deepest point, especially a swamp-like bulge 26 (junction box) in the bottom of the equipment chambers 19 a drain pipe 27 is led to the storage tank 24. The drain pipe 27 can be shut off if necessary by a preferably automatically operated two-way valve 28.

From the dewatering press 21, namely the collecting container 23 same, a drain pipe 29 to one is preferred automatically operated three-way valve 30 out. From the three-way valve 20 lead two drain piping strings 31 and 32 to each of the two storage containers 24 and 25. In this way liquid coming from the dewatering press 21 is optional the storage container 24 or the storage container 25 can be supplied by appropriate actuation of the three-way valve 30. In the exemplary embodiment shown is in the drain pipe 29 between the collecting container 23 and the three-way valve 30 a pump 33 is provided. This can be omitted. if the storage containers 24 and 25 are arranged so that the liquid coming out of the collecting container 23 due to gravity can run into the storage container 24 and 25.

At the bottom of both the storage container 24 and the storage container 25 a drain pipe 34 or 35 is provided, by a manually operated two-way valve, for example 36 is closed and by a corresponding Actuation of the two-way valve 36 can be opened if necessary. The drain pipes 34 and 35 lead to a sewer. This can make redundant or excessively dirty or used liquid from the storage container 24 or 25 be drained if necessary. It is also conceivable, in addition each storage container 24 and 25 an overflow, not shown assign, which ensures that excess Liquid from the storage containers 24 and 25 in the Sewer can drain before the storage tank 24th or overflowed 25.

A return pipeline 37 branches off from the storage container 25, which leads to the equipment chamber 19, preferably from above into the Equipment chamber 19 opens out. The return pipe 37 is one Assigned to pump 38, through the liquid, in particular finishing liquid, from the storage container 25 in the circuit to Equipment chamber 19 can be pumped back.

A return tubing string extends from the bottom of each storage tank 24 and 25 39 or 40 off. The return tubing strings 39 and 40 are in a common, preferably automatic operated three-way valve 41 out. Unite here the return piping strings 39 and 40 to one to the Three-way valve 41 connecting return pipe 42. The Return pipe 42 leads to the beginning of the continuous washing machine 10, namely to the feed hopper 20. Also the return pipe 42 is associated with a pump 43, which serves to Liquid from the storage container 24 and possibly also 25 to promote input hopper 20.

In the following the method according to the invention is described in the 1 described in more detail:

The laundry to be treated is the input hopper 20 Continuous washing machine 20 supplied. This happens under Add liquid, especially water, to the feed funnel 20 is supplied via the return pipe 42. It the laundry to be washed with liquid washed into the continuous washing machine 10. From the input funnel 20 get the laundry with the liquid in the washing zone 13, where they are in successive washing chambers 17 can be washed. Following the washing zone, the Items of laundry in the washing zone 14, where they are in several washing chambers 18 be rinsed gradually.

In the following it is assumed that the washed laundry to undergo post-treatment in the form of equipment is. This equipment takes place in equipment zone 15, namely the single equipment chamber 19. The laundry items get into the Equipment chamber 19 from the last rinsing chamber 18 together with Rinsing liquid. The washing liquid not bound to the laundry (free fleet) is first out of the equipment chamber 19 removed by the in the bulge 26 at the bottom of the Equipment chamber 19 collecting rinsing liquid through the drain pipe 27 and the open two-way valve 28 in the same Storage container 24 is supplied. Here is the rinse water collected and temporarily stored.

After the free rinsing liquid from the equipment chamber 19 has been drained into the finishing chamber 19 finishing liquid entered. The finishing liquid comes out of the Storage tank 25 via the return tubing string 39 and the correspondingly switched three-way valve 41 through the return pipe 37 from above into the finishing chamber 19. The finishing liquid is pump 43 into the equipment chamber 19 pumped. It now takes place in the equipment chamber 19 Finishing process of the laundry items contained therein.

Is the equipment of the laundry items in the equipment chamber 19th completed, the laundry and the rest, unbound equipment liquid (free fleet) via the connecting slide 22 behind the equipment chamber 19 from the equipment chamber 19 of the dewatering press 21 or another dewatering device fed. In the process, unattached finishing liquid arrives directly into the collecting container 23 of the Drainage press 21. Finishing liquid bound in the laundry (bound fleet) is now through the dewatering press 21 mostly pressed out of the laundry and also arrives in the collecting container 23 finishing liquid separated from the laundry in this way is from the collecting container 23 via the drain pipe 29 accordingly switched three-way valve 30 and Drain pipe line 31 to the storage tank 25 for receiving of the finishing liquid and temporarily stored here, until the finishing liquid for the next finishing process is used in the finishing chamber 19. To this The finishing liquid is circulated. Is the Finishing liquid consumed, it can come from the storage tank 25 via the return pipeline string 39 with the corresponding Position of the three-way valve 41 of the return pipe 42 fed and via this to the input hopper 20 be pumped through the continuous washing machine 10, namely just as it normally does with the rinsing liquid from the Storage container 24 happens. But it is also conceivable to use up After-treatment liquid in a sewer to derive.

If one of the storage tanks 24 or 25 contains too much flushing or Finishing liquid, this is through overflow lines, not shown discharged into the sewer before the person concerned Storage container 24 or 25 can overflow. The Manually operated two-way valves 36 serve the storage container Completely empty 24 and 25 when required should be. The liquids in the storage tanks 24 and 25 then run over the drain pipes 34 and 35 into the sewer or other drain.

Should equipment in the continuous washing machine 10 washing laundry items or a laundry item in the Equipment chamber 19 does not take place, this is called a rinsing chamber operated. In this case, the laundry items are removed the rinsing chamber 18 rinsing liquid in the finishing chamber 19 not from the equipment chamber 19 via the drain pipe 27 passed into the storage container 24. Instead the laundry and the rinsing liquid over the connecting slide 22 passed to the dewatering press 21 and here separate the washing liquid from the items of laundry, namely in particular bound rinsing liquid (bound liquor) squeezed out. It then collects in the receptacle 23 at the Dewatering press 21 accumulated or squeezed rinsing liquid, then by appropriate position of the three-way valve 30 via the drain pipe 29 and the drain pipe string 32 to the storage tank 24 for the rinsing liquid is directed. In this case, the storage tank 25 bypassed for the finishing liquid and the finishing liquid Leave in the storage container 25 until the laundry items are again equipped.

The rinsing liquid that accumulates in the storage container 24 even if the wash items are not equipped, with the corresponding position of the three-way valve 41 over the Return pipe string and the return pipe 42 before the continuous washing machine 10 is pumped, namely to the feed hopper 20 of them. The rinsed water pumped back serves here again for washing items to be washed into the Continuous washing machine 10.

When washing and rinsing the laundry items usually takes place an alkaline (basic) liquid (pH> 7) use. In contrast, the aftertreatment takes place especially equipment with acidic finishing liquid (pH <7).

According to the invention, before the aftertreatment of the laundry items the free one fed into the equipment chamber 19 with the same Rinsing liquid drained into the storage tank 24. The Rinsing liquid reacts alkaline (pH> 7). So that is only alkaline liquid in the storage container 24. It is then acidic liquid with a pH <7 from the Storage container 25 or possibly new finishing liquid passed into the finishing chamber 19. After the equipment separated from the equipped laundry items (Acidic) finishing liquid then gets back into the Storage container 25 in which there is only acidic liquid.

The exclusively alkaline or basic liquid, namely rinsing liquid that comes out of the equipment chamber before the equipment 19 has been deducted, if necessary, from Storage container 24 from for washing new items in the continuous washing machine 10 (to the feed hopper 20) is pumped. As a result, alkaline liquid (pH value > 7) used to wash and rinse the laundry is required. So it remains to wash in acidic liquid, especially acidic finishing liquid use only before washing and rinsing converted alkaline liquid (in technical jargon should be "neutralized"). Because such a conversion usually done by adding detergent, can by the detergent method according to the invention can be saved, because by using alkaline rinse water to wash in the laundry into the continuous washing machine 10 a neutralization of those used for washing in No need for liquid.

From the above it is clear that the invention The process enables rinsing liquid and finishing liquid (or other types of post-treatment items serving liquids) separately from each other in separate Intermediate storage containers 24 and 25 and in particular to circulate the finishing liquid from the storage tank 25 via the return pipe 37 to the equipment chamber 19 and from this via the dewatering press 21 back to Storage tank 25. Rinse water is removed from the equipment chamber 19 removed before it is filled with finishing liquid, so that in the finishing chamber 19 a mixing of the washing liquid with the finishing liquid apart from in the laundry bound rinsing liquid can not take place. The alkaline rinsing liquid is also circulated, by moving them out of the storage container 24 provided for this purpose the return pipe 42 is pumped back to the Input funnel 20 in front of the continuous washing machine 10 and there serves to wash in items to be washed. An encore of detergent for "neutralization" is unnecessary because none acidic, rather only alkaline liquid for flushing the Laundry items is used. Thus, the inventive Procedures also save on detergents.

The device of Fig. 2 differs from that above described device essentially only by that an additional storage container 44 is provided. in the remaining for matching components and parts of the 1 of the same reference numerals for explanation the device of Fig. 2 use. Provided below nothing else is mentioned, they have the same reference numbers provided parts and components of the device of FIG. 2 with comparable to that of the device of FIG. 1, so that to that extent to the description related to the device of the Fig. 1 is referenced, also with regard to Function or procedure.

The additional storage tank 44 is a drain pipe 45 assigned to the bottom area of the first rinsing chamber 18 the rinsing zone 14 runs out. But it is also conceivable, the drain pipe 45 from a subsequent rinsing chamber 18, for example the second rinsing chamber 18 to branch. The drain pipe 45 is by an automatically operated two-way valve 46 lockable. From the bottom area of the storage container 44 a drain pipeline 47 goes out to one not shown Wastewater channel and a manually operated Two-way valve 48 can be shut off. Furthermore goes off the floor of the storage tank 44 a return pipeline string 49, which leads to an automatically operated three-way valve 50. The return pipe 42 is also connected to this three-way valve 50 guided by the storage container 24 or 25. At three-way valve 50 So hit the return tubing string 49 from the storage tank 44 and the return pipe from the storage tank 24 or 25 on top of each other. There is only one of the three-way valve 50 Connecting pipeline 51 from the to the funnel 20 on Beginning of the continuous washing machine 10 leads. In the connecting pipeline 51 are on the three-way valve 50 in the flow direction following a pump 52 and a preferably inductive working liquid counter 53 arranged.

Each storage container 24, 25 and 44 is a temperature measuring device 54, 55 and 56 and a level measuring device 57, 58 and 59 assigned. If necessary, the level measuring device 58 and the temperature measuring device 55 at Storage containers 25 for finishing liquid are dispensed with. It is also conceivable, further rinsing chambers 18 in which rinsing liquid is discharged, its own additional storage container assign. It is also conceivable for all rinsing chambers 18 in which rinsing liquid is drained over the rinsing liquid a correspondingly branched drain pipe the only one Supply storage container 44.

2 runs according to the invention Process as follows:

The finishing liquid possibly occurring in the finishing chamber 19 is like the device of Fig. 1 on the Storage container 25 for the finishing liquid in the circuit led, so if necessary pumped back to the equipment chamber 19. Likewise, rinsing liquid is used before the finishing process is withdrawn from the equipment chamber 19 in the intended Storage container 24 temporarily stored.

In the additional storage container 44, rinsing liquid is made out the first rinsing chamber 18 (or possibly also one subsequent rinsing chamber 18) temporarily stored.

The rinsing liquid obtained in the first rinsing chamber 18 has a higher temperature than that in the area of the equipment chamber 19 separated rinsing liquid. As a result themselves in the storage containers 24 and 44 as a rule Flushing liquids of different temperatures. The rinsing liquid in the storage container assigned to the finishing chamber 19 24 generally has approximately room temperature. In contrast, that from the first rinsing chamber 18 the rinsing liquid supplied to the storage container 44 clearly warmer.

To wash the laundry on the feed hopper 20 in front of the Pass-through washing machine 10 requires a liquid whose Temperature depending on the type of sponged Items of laundry can be of different heights. Usually lies the temperature of the liquid for washing the laundry within one depending on the one to be washed in Items of laundry changing temperature spectrum with a temperature range between a minimum and a Maixmal temperature. The maximum is usually Wash-in temperature below the temperature in the first Rinsing chamber 18 resulting rinsing liquid.

Based on the requirements for the Temperature of the liquid for washing the laundry in the washing zone 13 of the continuous washing machine 10 is according to the invention this liquid from a mixture of colder rinsing liquid from the storage tank 24 and warmer rinsing liquid formed from the storage container 44. Due to the Temperature measuring devices 56 and 54 of the storage container 24 and 44 is the temperature of the rinse water known herein known. The desired temperature for washing in serving liquid results from removal of appropriate Amounts of flushing fluid from storage tanks 24 and 44. These proportions can be determined by a computer become. Through the liquid counter 53 in the connecting pipe 51 are accordingly from the storage container 24 or 44 quantities of rinse water to be removed with the corresponding Temperature determined. This is the three-way valve 50 automatically controlled in such a way that 44 warmer rinsing liquid is removed until the Liquid counter 53 determines the desired amount of liquid Has. The same applies to the removal of a corresponding one Amount of liquid from the storage container 24.

By alternately taking small amounts of liquid from the storage containers 24 and 44 a mixture of the Liquid of different temperatures instead, which then has adjusted so far along the connecting pipeline 51 that the liquid with the desired at the funnel 20 Average temperature emerges. Alternatively, it is conceivable, an additional mixing section in the connecting pipeline or to integrate a mixing container. Likewise can also be dosing pumps in place of pumps 43 and 52 be used, the desired quantities at the same time warmer liquid from the storage container 44 and colder Withdraw the rinsing liquid from the storage tank 24 while doing so mix. In this case, the liquid counter 53 and possibly also the three-way valve 50 is omitted.

The procedure described above applies in the event that enough rinsing liquid in the storage containers 24 and 44 is present to make a mixture with the desired one Temperature. Something else applies if in one Storage container 24 or 44 insufficient amount Flushing liquid is available.

The fill level measuring devices 57 and 59 determine which ones Amount of rinse water present in the storage tanks 24 and 44 is. This quantity measurement shows that in a storage container 24 or 44 relatively little washing liquid available is, is from the temperature spectrum in which the There is liquid to wash in items to be washed may be chosen so that they are at the upper or lower limit of the temperature spectrum.

For example, the storage container 44 contains a proportionate small amount of warmer rinsing liquid, chooses Computer to control the mixture of rinsing liquids the storage containers 24 and 44 a temperature for the Flushing serving liquid from the bottom of the Temperature range is. It will then be minimal Proportion of warmer rinsing liquid from the storage container 44 with the largest possible amount of colder washing liquid from the Storage container 24 mixed, so that the for Flushing serving liquid has a temperature that at the bottom of the required for the laundry in question Temperature range is, namely only a minimum temperature having. Conversely, if the amount of warmer flushing liquid in the storage container 44 is greater than the amount of colder rinse liquid in the storage tank 24.

If the finishing liquid is also to be used, are determined by the temperature measuring device 55 Temperature of the same and that of the level measuring device 58 determined level of the equipment temperature in Storage container 25 measured and for mixing the liquids used. It can then be used to wash in Liquid from the equipment liquid of the storage container 25 and the rinse liquid is formed in the reservoir 44; but also a mixture of liquids in all three storage tanks 24, 25 and 44.

Reference symbol list:

10th

Continuous washing machine

11

drum

12th

Longitudinal central axis

13

Wash zone

14

Rinsing zone

15

Equipment zone

16

Treatment direction

17th

Washroom

18th

Rinsing chamber

19th

Equipment chamber

20th

Input funnel

21

Dewatering press

22

Connecting slide

23

Collecting container

24th

Storage tank

25th

Storage tank

26

bulge

27

Drain pipe

28

Two-way valve

29

Drain pipe

30th

Three-way valve

31

Drain pipe string

32

Drain pipe string

33

pump

34

Drain pipe

35

Drain pipe

36

Two-way valve

37

Return pipe

38

pump

39

Return pipeline

40

Return pipeline

41

Three-way valve

42

Return pipe

43

pump

44

Storage tank

45

Drain pipe

46

Two-way valve

47

Drain pipe

48

Two-way valve

49

Return pipeline

50

Three-way valve

51

Connecting pipeline

52

pump

53

Liquid counter

54

Temperature measuring device

55

Temperature measuring device

56

Temperature measuring device

57

Level measuring device

58

Level measuring device

59

Level measuring device

Claims (15)

Process for the wet treatment of laundry items, wherein the laundry items are washed at least and optionally subjected to a post-treatment (equipment) and wherein a large part of the liquid is separated from the laundry items after the wet treatment, characterized in that at least the liquid for post-treatment (post-treatment liquid) of the items is separated temporarily stored and, if necessary, the post-treatment is fed back. A method according to claim 1, characterized in that the items of laundry are separated from entrained, preferably unbound, liquid (rinsing liquid) before the aftertreatment and this liquid is preferably temporarily stored. Method according to one of the preceding claims, characterized in that the liquid separated from the laundry items is conducted in different storage containers (24, 25) for either rinsing liquid or aftertreatment liquid. Method according to one of the preceding claims, characterized in that the aftertreatment liquid accumulated in the storage container (25) is fed to the aftertreatment of the items of laundry as required, in particular to the aftertreatment chamber. Method according to one of the preceding claims, characterized in that before the aftertreatment of the items of laundry, the liquid located in the aftertreatment chamber, in particular rinsing liquid, is transferred from the aftertreatment chamber into the storage container (24) for liquid (rinsing liquid) not used for aftertreatment, preferably at least the rinsing liquid from the storage container (24) provided for this purpose is used, if necessary, for washing in laundry items which are still to be treated. Method for the wet treatment of laundry items, the laundry items being washed into a washing zone (13) of a treatment device with the supply of at least one liquid, washed in the treatment device, rinsed and optionally aftertreated (equipped), in particular according to one or more of the preceding claims, characterized that liquids of different temperatures are drawn off at different points in the treatment device and passed into separate storage containers (24, 44) and if necessary the liquid for washing the laundry items is formed from a mixture of the liquids having different temperatures from different storage containers (24, 44). A method according to claim 6, characterized in that the amount and / or temperature of the liquids in the storage containers (24, 44 and 25) is preferably measured continuously. Method according to one of the preceding claims, characterized in that the liquid used for flushing in has a temperature spectrum from which such a temperature of the liquid used for flushing in is selected which is selected from the liquids having different temperatures in the storage containers (24, 44 or 25 ), preferably such a temperature of the liquid used for the flushing in is selected within the temperature spectrum, which temperature can be formed from the liquids having different temperatures in the storage containers (24, 44; 25) and which the amount of the in the storage containers (24, 44; 25) compensates for remaining liquids as much as possible. Method according to one of the preceding claims, characterized in that at least as a function of the measured fill level, preferably also the temperatures, of the liquids in the storage containers (24, 44 or 25), such a temperature of the liquid used for flushing is selected from the temperature spectrum, which can be formed from the quantities and, if appropriate, temperatures of the liquids in the storage containers (24, 44 or 25). Device for the wet treatment of laundry, with a washing zone (13), a rinsing zone (14), an aftertreatment zone (finishing zone 15) and preferably a dewatering device (dewatering press 21), characterized by separate storage containers (24, 25) for holding different liquids. Apparatus according to claim 10, characterized in that a drain pipe (29) of the liquid from the dewatering device (dewatering press 21) is guided to the separate storage containers (24, 25) and at least one valve (three-way valve 30) is provided in the drain pipe (29) , whereby the liquid from the dewatering device (dewatering press 21) can optionally be supplied to one or the other storage container (24 or 25). Device according to one of the preceding claims, characterized in that at least from the storage container (24) for receiving a liquid (rinsing liquid) not used for aftertreatment, a return pipe (42) is led to the beginning of the washing zone (13) or in front of the washing zone (13) and / or from the storage container (25) for receiving the liquid for the aftertreatment (aftertreatment liquid) a return pipe (37) is fed to the aftertreatment zone (finishing zone 15). Device for the aftertreatment of laundry, with a washing zone (13), a rinsing zone (14), optionally a post-treatment zone (finishing zone 15) and preferably a dewatering device (dewatering press 21), in particular according to one or more of the preceding claims, characterized in that at least one Storage container (24) for holding liquid which is obtained at the end or behind the washing zone (14) and at least one further storage container (44) for holding liquid which is obtained at the beginning or during the course of the washing zone (14) is provided . Device according to claim 13, characterized in that at least the storage containers (24, 44) are each assigned a temperature measuring device (54, 56) and / or a level measuring device (57, 59), and preferably lines are provided with which the liquids from the Storage containers (24, 44) in front of the washing zone (13) can be transported. Device according to one of the preceding claims, characterized in that return pipe lines (40, 49) of the storage containers (24, 44) are brought together at a valve (three-way valve) and from there via a common connecting pipe (51) at the beginning of the washing zone, in particular an input funnel ( 20) in front of the washing zone (13), a liquid quantity counter (liquid counter 53) being preferably arranged in the common connecting pipe (51) of both storage containers (24, 44).

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