ES2677231T3 - Equipment for the treatment of laundry with a detergent liquid generating device - Google Patents

Abstract

Equipment for the treatment of laundry (100) to treat the laundry with a heat generating device (101) to generate heat, with a detergent liquid generating device (103) to generate detergent liquid and a washing tub (105) to housing the detergent liquid, characterized in that the detergent liquid generating device (103) is constituted to generate a first detergent liquid (321) with a first concentration of a detergent in a first part (313) of a first time stage (309) , a second detergent liquid (329) with a second concentration of the detergent in a second part (315) of the first time stage (309), the first concentration being greater than the second concentration, a third detergent liquid (341) with a third concentration of the detergent in a first part (319) of a second time stage (311), the third concentration being less than the second concentration and the heat generating device (10 1) is constituted to generate in the first time stage (309) a first temperature (337) of detergent liquid and in the second time stage (311) a second temperature of detergent liquid, the first temperature (337) being higher than the second temperature.

Description

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EQUIPMENT FOR THE TREATMENT OF LA COLADA WITH A DEVICE GENERATOR

DETERGENT LIQUID

DESCRIPTION

The present invention relates to equipment for the treatment of laundry with a detergent generating device. WO 03/080916 A1 publishes an equipment for the treatment of known laundry (see figure 1) for the treatment of laundry with a heat generating device (120,121) for generating heat. In a laundry treatment process in a laundry treatment equipment, such as a washing machine, a wetting phase is carried out before starting the washing phase, in which the dry laundry parts are wetted in the washing drum of the equipment for the treatment of laundry with detergent liquid. Next, heating of the detergent liquid is usually carried out to a desired washing temperature and the washing phase begins.

The effectiveness of wetting the laundry parts with detergent liquid depends on the amount of laundry parts found in the washing machine. When the washing drum of the washing machine is fully loaded with the laundry, only the majority of the outside area of the laundry, which is in contact with the detergent liquid, is sufficiently wetted during the wetting phase. When the wash drum is fully loaded with laundry, the inner area of the laundry that is in the wash drum remains dry and may not be sufficiently wetted by the detergent liquid. For this reason, often the interior area of the laundry cannot be sufficiently cleaned when a washing machine is fully loaded. The objective of the invention is to indicate a team for the treatment of laundry that makes possible a more efficient laundry treatment.

This objective is achieved by means of objects with the characteristics of the independent claims. Advantageous embodiments of the invention are subject to the figures, the description and the dependent claims.

The invention is based on the understanding that the addition of a detergent liquid with a higher concentration of detergent and a higher temperature in a first stage of time results in a better wetting of the laundry than with a detergent liquid which is added in A second stage of time. In this way a better laundry treatment is achieved.

According to a first aspect of the invention, the objective is achieved by means of a laundry treatment equipment that treats the laundry with a heat generating device for generating heat, with a detergent liquid generating device for generating detergent liquid and a bucket of washing to house the detergent liquid, in which the detergent liquid generating device is constituted to generate a first detergent liquid with a first concentration of a detergent in a first part of a first time stage, a second detergent liquid with a second concentration of the detergent in a second part of the first time stage, the first concentration being greater than the second concentration, a third detergent liquid with a third concentration of the detergent in a first part of a second time stage, the third concentration being less than the second concentration and in which the heat generating device is constituted to generate in the first stage of time a first temperature of detergent liquid and in the second stage of time a second temperature of detergent liquid, the first temperature being higher than the second temperature.

In this way the technical advantage is achieved that by means of the highest temperature of the detergent liquid and by the greater concentration of the detergent in the detergent liquid during the first time stage of the washing process compared to the second time stage of the washing process washing, a complete wetting of the exterior and interior areas of the laundry to be treated with detergent liquid is guaranteed.

According to one embodiment, the first temperature of the detergent liquid in the first stage of time is higher than the second temperature of the detergent liquid during the second stage of time. The detergent liquid generating device is configured to generate during the first stage of time a first and a second detergent liquid with a first and second detergent concentration, both of which are greater than the third concentration of a third detergent liquid that is generated in the second Time stage of the washing process.

In an equipment for the treatment of the laundry that is fully loaded with the laundry, it is ensured by the different detergent concentrations and temperatures of the detergent liquid throughout the different time stages that the detergent liquid does not only moisturize the outside area of the laundry, but the detergent liquid can penetrate to the inner area of the laundry. In this way a complete humidification of all areas of the laundry is achieved, as well as a sufficient cleaning effect.

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Under equipment for the treatment of laundry is understood as a device that is used to treat laundry. This can be a large team, such as a washing machine, a clothes dryer or a washer-dryer. In particular, the equipment for the treatment of laundry that we consider here is a domestic equipment, that is, an equipment for the treatment of laundry that is used for the operation of the home. With such equipment for the treatment of laundry used in the home, textile garments that usually exist in a household are treated in the usual amounts for a household.

In an advantageous embodiment of the laundry treatment equipment, the detergent liquid generating device is configured to generate a fourth detergent liquid with a fourth detergent concentration in a third part of the first time period, the fourth concentration being lower to the second concentration.

In this way, the technical advantage is achieved that an additional third part is introduced in the first stage of the washing process during which an additional amount of detergent liquid is brought into the laundry. In the first and second part of the first time stage a first detergent liquid with a first concentration and a second detergent liquid with a second concentration is generated.

By distributing the generation and addition of detergent liquid in various parts of the first stage of time, an effective wetting of the outer and inner areas of the laundry is achieved. The generation of a fourth additional detergent liquid during a third part of the first stage of time leads to the laundry found in the equipment for the treatment of the laundry an additional amount of detergent liquid. By adding this additional amount of detergent liquid, an effective wetting of all areas of the laundry in the equipment for the treatment of the laundry in an effective manner is achieved.

The fourth concentration of the fourth detergent liquid that can be provided during the third part of the first time stage is less than the second concentration of the second detergent liquid that is provided during the second part of the first time stage. Thus, the concentration of detergent in the detergent liquid that is provided in the first, second and third part of the first stage of time decreases continuously. The decrease in the concentration of the detergent in the detergent liquid has a correlation with an increase in the volume of detergent liquid in the second stage of time that moisturizes the laundry. By increasing the volume of detergent liquid, complete wetting of the exterior and interior areas of the laundry in the equipment for the treatment of the laundry is achieved.

In another advantageous embodiment of the laundry treatment equipment, the detergent liquid generating device is configured to generate other detergent liquids with other concentrations of the detergent in other parts of the first stage of time. In particular, the detergent liquid generating device may be configured such that a fifth, sixth, seventh, eighth, ninth or tenth detergent liquid is generated with a fifth, sixth, seventh, eighth, ninth or tenth concentration of the detergent in a fourth, fifth , sixth, seventh, eighth or ninth part of the first stage of time. The parts of the first stage of time can follow each other according to one embodiment.

In this way the technical advantage is achieved that in the first stage of time additional parts can be introduced in which additional amounts of detergent liquid are driven into the laundry. By adding additional amounts of detergent liquid, an effective wetting of the exterior and interior areas of the laundry in the equipment for the treatment of the laundry is achieved.

In another advantageous embodiment of the equipment for the treatment of laundry, the detergent liquid generating device is configured to modify the concentration of the detergent in the detergent liquid in the wash basin by providing a quantity of detergent liquid to the bucket of detergent. washed.

In this way, the technical advantage is achieved that the concentration of the detergent in the detergent liquid in the wash basin can be modified flexibly by means of the detergent liquid generating device. An increase in the detergent concentration in the detergent liquid in the wash basin can be achieved by providing a certain amount of detergent liquid which has a greater concentration of detergent than the detergent concentration of the detergent liquid found in the wash basin. A reduction of the detergent concentration in the detergent liquid found in the wash basin can be achieved by providing an amount of detergent liquid with a detergent concentration lower than the detergent concentration in the detergent liquid found in the wash basin. .

In this way the detergent concentration of the detergent liquid in the wash basin can be adapted to the needs. To ensure low detergent consumption, a reduced concentration of detergent can be chosen in the wash basin. To get a very clean wash completely

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dirty and completely moisturize the exterior and interior areas of the laundry, a high concentration of detergent can be chosen in the wash basin.

In another advantageous embodiment of the equipment for the treatment of the laundry includes the equipment for the treatment of the laundry a washing drum in the wash basin and the detergent liquid generating device is configured to introduce a certain amount of detergent liquid into the wash basin based on an amount of laundry existing in the laundry drum of the equipment for the laundry treatment or a type of laundry existing in the laundry drum of the equipment for the laundry treatment.

In this way the technical advantage is achieved that the amount of detergent liquid supplied is adapted according to the amount and type of laundry found in the washing drum by means of the detergent liquid generating device. A larger amount of detergent liquid must be generated in a washing drum with a full load of laundry, to achieve a complete wetting of the outer and inner areas of the laundry than in a washing drum with a lower laundry load.

In addition, the type of laundry also influences the necessary amount of detergent liquid. In a type of laundry that can absorb a large amount of liquid, such as panuelos, a high amount of detergent liquid is needed to completely wet the laundry. In a type of laundry that can absorb a small amount of liquid, such as polyester fibers, a small amount of detergent liquid is needed to completely wet the laundry. By flexible control of the addition of detergent liquid depending on the amount or type of laundry, complete wetting of the outer and inner areas of the laundry can be ensured.

In another advantageous embodiment of the equipment for the treatment of laundry, the detergent liquid generating device is configured to provide a minimum volume of a quantity of detergent liquid to the wash basin, the minimum volume being greater than a dead volume of the wash basin

In this way, the technical advantage is achieved that there is always a minimum volume of detergent liquid in the wash basin, which is sufficient to wet the laundry in the washing drum of the equipment for the treatment of the laundry. The dead volume of the wash basin corresponds to the volume of detergent liquid in the wash basin that is sufficient for the wash drum to make contact with the detergent liquid, but the laundry found in the wash drum does not make contact with liquid detergent.

In order for the laundry found in the washing drum to come into contact during the laundry treatment process with the detergent liquid, thus sufficiently wetting with detergent liquid, there should therefore be a minimum volume of detergent liquid in the bucket of wash that is greater than the dead volume of the wash basin. In usual laundry equipment, the dead volume is less than 10% of the total volume of the wash basin, in particular less than 5% of the total volume of the wash basin. By using a sufficient minimum volume of detergent liquid, a complete wetting of the exterior and interior areas of the laundry is ensured.

In another advantageous embodiment of the equipment for the treatment of laundry, the minimum volume of the amount of detergent liquid supplied to the wash basin is greater than the sum of the dead volume of the wash basin and another additional volume of the wash basin

In this way the technical advantage is achieved that the minimum volume of detergent liquid in the wash basin, taking into account another additional volume of the wash basin in addition to the dead volume of the wash basin, includes an additional safety mattress of liquid detergent. This safety mattress ensures that there is a minimum volume of detergent liquid in the wash basin that is sufficient to ensure sufficient wetting of the laundry in the washing drum. The additional volume of the wash basin can be any volume of detergent liquid and is preferably in a range of 1% to 10% of the total volume of the wash basin.

In another advantageous embodiment of the laundry treatment equipment is the second detergent concentration in the second detergent liquid in a range of 50% to 99% of the first detergent concentration in the first detergent liquid.

In this way the technical advantage is achieved that a second concentration of the detergent in the second detergent liquid less than the first concentration of the detergent in the first detergent liquid results in a better wetting of the outer and inner areas of the laundry in the equipment for the laundry treatment. By adding the second detergent liquid with a detergent concentration lower than the detergent concentration of the first detergent liquid, there is a greater proportion of water in the second detergent liquid, which results in better wetting of the laundry.

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In another advantageous embodiment of the equipment for the treatment of laundry, the fourth concentration of the detergent in the fourth detergent liquid is lower than the first concentration of the detergent in the first detergent liquid, the fourth concentration being in particular in a range of 50% 99% of the first concentration.

In this way the technical advantage is achieved that a fourth detergent concentration in the fourth detergent liquid smaller than the first detergent concentration in the first detergent liquid results in a better wetting of the outer and inner areas of the laundry. By adding the fourth detergent liquid with a detergent concentration lower than that of the first detergent liquid, the detergent liquid in the wash basin presents a large amount of water. Continuous reduction of detergent concentrations from the first detergent liquid, through the second detergent liquid to the fourth detergent liquid, results in better wetting of the exterior and interior areas of the laundry.

In another advantageous embodiment of the equipment for the treatment of the laundry includes the equipment for the treatment of the laundry a pressure sensor, the pressure sensor being configured to capture a pressure of the detergent liquid in the wash basin and the configuration being configured. detergent liquid generating unit to provide detergent liquid to the wash basin when the pressure detected corresponds to a first predetermined pressure.

In this way the technical advantage is achieved that the combination of a pressure sensor and a detergent liquid generating unit makes it possible to add detergent liquid automatically according to the pressure captured. The pressure sensor can be found on the bottom of the wash basin and captures the pressure of the detergent liquid in the wash basin. The pressure sensor captures the pressure exerted by the column of the detergent liquid in the wash basin on the bottom of the wash basin. Thus, the pressure captured directly with the level of filling of the detergent liquid in the wash basin is correlated. When the captured pressure corresponds to a first predetermined pressure, detergent liquid is added by means of the detergent liquid generating device to the wash basin. Thus, depending on the pressure captured, the addition of detergent liquid can be automatically regulated. Thus it is ensured that there is an amount of detergent liquid in the wash basin that makes it possible to effectively wet the outer and inner areas of the laundry.

In another advantageous embodiment of the laundry treatment equipment, the detergent liquid generating device is configured to add the second detergent liquid to the wash basin after a predetermined time interval has elapsed after a second predetermined liquid pressure has been collected. detergent in the wash basin.

In this way, the technical advantage is achieved that detergent liquid is added by means of the detergent liquid generating device automatically to the wash basin when the pressure of the detergent liquid in the wash basin corresponds to a second predetermined pressure and an interval of default time When the pressure sensor picks up the second pressure of the detergent liquid, a specific start time is defined. During the predetermined time interval following the start-up time, the first detergent liquid in the wash basin can be sufficiently wetted by the laundry. This ensures a sufficient humidification of the exterior and interior areas of the laundry.

In another advantageous embodiment of the laundry treatment equipment, the detergent liquid generating device is configured to add the fourth detergent liquid to the wash basin after a predetermined time interval after capturing a third predetermined liquid pressure detergent in the wash basin.

In this way, the technical advantage is achieved that when the pressure of the detergent liquid reaches a predetermined third pressure and a predetermined interval of time has elapsed, a detergent liquid is automatically added by means of the detergent liquid generating device to the wash basin . The predetermined time interval following the collection of the pressure makes possible a sufficient wetting of the laundry found in the equipment for the treatment of the laundry by means of the detergent liquid found in the wash basin. It also ensures the predetermined time interval that the temperature of the detergent liquid has increased sufficiently due to the heat generating device.

In another advantageous embodiment of the laundry treatment equipment, the detergent liquid generating device is configured to add the third detergent liquid to the wash basin after a predetermined time interval has elapsed after a first detergent liquid temperature has been reached. in the wash basin.

In this way, the technical advantage is achieved that the detergent liquid can be automatically added by means of the detergent liquid generating device to the wash basin when the detergent liquid has reached a first temperature in the first stage of time and a temperature has elapsed.

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predetermined time interval following temperature pickup. The first temperature of the detergent liquid in the first stage of time is higher than the second temperature of the detergent liquid in the second stage of time.

Thus, by capturing the first temperature, an instant can be defined at which a transition from the first stage of time to the second stage of time begins. For example, this may be the case when the first temperature has reached a certain maximum temperature. By means of the predetermined interval of time that follows, a sufficient period of time is provided during which sufficient wetting of the laundry can be ensured by means of the detergent liquid found in the wash basin or during which the heat generating device increases sufficiently the temperature of the detergent liquid. Alternatively, the transition between the first and second stage of time can be achieved by automatically adding to the wash basin, after capturing a predetermined pressure of detergent liquid and a predetermined time interval following the instant of the collection of the pressure, a third liquid detergent using the detergent liquid generating device.

In another advantageous embodiment of the equipment for the treatment of the laundry, the equipment for the treatment of the laundry includes a washing drum supported such that it can rotate in the washing bowl, the washing drum being constituted to rotate during the first stage of time with a turning frequency of less than a maximum turning frequency, in particular with a turning frequency of less than 100 turns per minute.

In this way, the technical advantage is achieved that the detergent liquid added during the first time interval, due to the reduced frequency of rotation of the washing drum, can also wet the inner area of the laundry. When the frequency of rotation of the washing drum is high, the detergent liquid is transported, due to the centrifugal force, to the outer area of the washing drum and because of this it cannot sufficiently wet the inner area of the laundry. This effect is avoided by a reduced turning frequency. By means of the reduced rotation frequency of the washing drum it is possible that the detergent liquid can also penetrate through the outer area of the laundry which is in the washing drum in the inner area of the laundry. In this way it is possible to effectively clean the laundry.

According to a second aspect of the invention, the objective is achieved by a procedure for the treatment of laundry in an equipment for the treatment of laundry with a heat generating device to generate heat, with a liquid generating device detergent to generate liquid detergent and a wash basin for housing detergent liquid, in which the process includes the generation of a first detergent liquid with a first concentration of a detergent in a first part of a first time stage by means of the detergent liquid generating device, the generation of a second detergent liquid with a second detergent concentration in a second part of the first time stage by means of the detergent liquid generating device, the first concentration being greater than the second concentration and the detergent liquid generated in the first stage of heating being heated time to a first temperature, the generation of a third In the detergent liquid with a third concentration of the detergent in a first part of a second stage of time by means of the washing liquid generating device, the third concentration being lower than the second concentration and the detergent liquid generated in the second stage being heated up to a second temperature and the first temperature being greater than the second temperature.

In this way the technical advantage is achieved that through the higher temperature of the detergent liquid and by the greater concentration of detergent in the washing liquid, during the first stage of the washing process, it is guaranteed, compared to the second stage of time of the washing process, a complete humidification of the outer and inner areas of the laundry to be treated with detergent liquid. In an equipment for the treatment of the laundry that is fully loaded with laundry, it is thus ensured that the detergent liquid not only moisturizes the exterior area of the laundry, but that the detergent liquid penetrates into the interior area of the laundry. In this way a complete humidification is achieved and that all areas of the laundry are sufficiently cleaned.

In another advantageous embodiment of the process, the process includes the generation of a fourth detergent liquid with a fourth concentration of the detergent in a third part of the first stage of time, the fourth concentration being less than the second concentration.

In this way, the technical advantage is achieved that an additional third part is introduced in the first stage of the washing process, during which an additional amount of detergent liquid is added to the laundry. The generation of a fourth additional detergent liquid during a third part of the first stage of time leads to the laundry found in the equipment for the treatment of the laundry an additional amount of detergent liquid. By providing this additional amount of detergent liquid, an effective wetting of all areas of the laundry in the equipment for the treatment of the laundry in an effective manner is achieved.

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Other examples of embodiment of the invention are represented in the drawings and will be described in more detail below.

It is shown in:

Figure 1 a schematic representation of an equipment for the treatment of laundry; Figure 2 a sequence of a procedure for the treatment of laundry in an equipment for the treatment of laundry and

Figure 3 shows a sequential diagram of an example washing procedure.

Figure 1 shows a schematic representation of a washing machine representing equipment for the treatment of laundry 100 of the general type. The interior space of the laundry treatment equipment 100 includes a heat generating device 101 that generates heat. The heat generated is transferred to a detergent liquid, which is generated by a detergent liquid generating device 103. The generated detergent liquid is housed in a wash basin 105. A certain amount of laundry can be introduced into a washing drum 107, which at least in part it is inserted in the wash basin 105.

The washing liquid generating device 103 is configured to generate in various parts of a first and a second stage of the washing process various detergent liquids, which can be housed in the wash basin 105. The washing liquid generating device 103 generates in the first part of the first time stage a first detergent liquid with a first detergent concentration that is greater than the second detergent concentration of a second detergent liquid that is generated in a second part of the first time stage that follows to the first part. In the second part of the second stage of the washing process, a third detergent liquid with a third detergent concentration is generated by means of the detergent liquid generating device 103, the third concentration being inferior to the second concentration.

During the washing process, the heat generating device 101 generates heat, which can be transferred to the detergent liquid, so as to modify the temperature of the detergent liquid. The detergent liquids generated in the first time stage have a first temperature, which is higher than the second temperature of the detergent liquid generated in the second time stage.

Thus, detergent liquids are generated in the first stage of the washing process by means of the detergent liquid generating device 103 and the heat generating device 101, which have a higher concentration of detergent and a temperature higher than the detergent liquid generated in the Second stage of time. In this way, a complete wetting of the laundry in the washing drum during the washing process can be achieved with the laundry treatment equipment 100, which in turn guarantees a more efficient laundry treatment.

Figure 2 shows the sequence of a procedure 200 for the treatment of the laundry in an equipment for the treatment of the laundry described in Figure 1. The process includes the generation 201 of a first detergent liquid with a first concentration of a detergent in a first part of a first stage of time. The process includes the generation 203 of a second detergent liquid with a second concentration of a detergent in a second part of the first time stage. The method also optionally includes the generation 205 of a fourth detergent liquid with a fourth concentration of a detergent in a third part of the first stage of time. The process includes the generation 207 of a third detergent liquid with a third concentration of a detergent in a first part of a second stage of time.

After generation 201, the first detergent liquid has a first concentration of a detergent that is greater than the second detergent concentration of the second detergent liquid. The fourth detergent concentration corresponding to the fourth detergent liquid generated is less than the second detergent concentration in the second detergent liquid. Generation 205 of a fourth detergent liquid is an optional process step, which is not necessarily part of the process 200. The third concentration of the detergent is equally less than the second concentration of the detergent in the second detergent liquid and may be equally less than the Fourth concentration of detergent. In the process 200, a first, second, fourth and third detergent liquid is thus generated in four successive stages, the detergent concentration decreasing from the first to the third detergent liquid.

The detergent liquid generated in the first stage of time is heated by the heat generating device 101 to a first temperature. The detergent liquid generated in the second time stage is heated by the heat generating device 101 to a second temperature. The first temperature is higher than the second temperature. Due to the higher temperature and the greater concentration of the detergent in the detergent liquid added during the first stage of time compared to the detergent liquid added during the second stage of time, an effective wetting of the laundry is guaranteed.

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The steps of the procedure described in Figure 2 are based on a laundry treatment equipment shown in Figure 1.

Figure 3 shows a sequential diagram of a procedure for the treatment of the laundry in the equipment for the treatment of the laundry 100, which is represented in Figure 1. The diagram shows a graphical representation of the temperature 301, of the pressure 303 and of the amount of detergent liquid 305 as a function of time 307. During the washing step detergent liquid is generated by means of the detergent liquid generating device 103 and is supplied to the wash basin 105. The laundry to be treated is in the wash drum 107 and is wetted by the detergent liquid found in the wash basin 105. The washing procedure includes the first time stage 309 and the second time stage 311. The first time stage 309 is divided into the first part 313, the second part 315 and the third part 317. The second stage 311 includes the first part 319.

During the first part 313 of the first time stage 309, an amount of first detergent liquid 321 generated by the detergent liquid generating device 103 is added to the wash basin 105. After providing the first detergent liquid 321, the detergent liquid presents a certain volume and a first pressure 323 are located in the wash basin 105. The laundry found in the wash drum 107 absorbs a portion of detergent liquid that is in the wash basin 105. This reduces the volume of the laundry in the wash basin 105 and consequently the pressure of the detergent liquid captured by a pressure sensor drops to a second pressure 325. After reaching the second pressure 325 a first time interval 327 is expected before entering the second part 315 of the first stage of time 309.

During the second part 315 of the first time step 309 an amount of second detergent liquid 329 generated by the washing liquid generating device 103 is introduced into the wash basin 105. Due to this an increase in the liquid pressure occurs detergent found in the wash basin 105. When the detergent liquid wash is absorbed, the pressure of the detergent liquid decreases and reaches a third pressure 331. After reaching the third pressure 331 a second time interval 333 is expected before entering the third part 317 of the first time step 309 and an amount of the fourth detergent liquid 335 generated by the washing liquid generating device is added and introduced into the wash basin 105.

During the second part 315 and the third part 317 of the first time stage 309, the detergent liquid is continuously heated by the heat generating device 101, until the detergent liquid reaches a first temperature 337, which corresponds to a maximum temperature of the detergent liquid during the first time stage 309. After reaching the first temperature 337, a third time interval 339 is expected before introducing the second time stage 311 of the process. During the first part 319 of the second time stage 311, an amount of a third detergent liquid 341 is added by means of the detergent liquid generating device 103 and is supplied to the wash basin 105.

During the second time stage 311 the heat generating device 101 is disconnected and due to this the temperature of the detergent liquid continuously decreases while the washing process continues. The laundry is washed during the second time stage 311 with detergent liquid until the detergent liquid reaches a final concentration after the main wash cycle 343. The duration of the second time stage 311 includes a time stage 345 of at most one 40% of the total duration of the entire washing process. By means of a washing cycle corresponding to the process, maximum wetting of the outer and inner areas of the laundry found in the wash drum 107 can be achieved.

In a usual washing process in an equipment for the treatment of laundry 100, the washing effect and the cleaning effect of the laundry depend on three important variables, on the volume of the detergent liquid that is supplied to the laundry V, on the concentration of the detergent in the detergent liquid and and of the temperature of the detergent liquid T.

According to one embodiment, a device for the treatment of laundry 100 shown in Figure 1 is described, which is filled with laundry. The detergent liquid generating device 103 of the laundry treatment equipment 100 generates detergent liquid, which is supplied to the laundry. The laundry is treated with the detergent liquid provided during a main wash phase. The amount of detergent liquid provided has been chosen during the main washing phase Mmw such that a high cleaning efficiency of the laundry is ensured during the main washing phase. During the main wash phase the detergent liquid is usually provided in a limited time interval 345, which begins with the start of the complete wash program and ends when 40% of the total duration of the complete wash program has elapsed.

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It also includes the amount of detergent liquid Mmw that is given during the main wash phase a certain amount of detergent Md. The amount of detergent Md may be predetermined depending on a certain washing program. Alternatively, the amount of detergent Md may have been determined by a wash cycle performed at a previous time with a certain amount of detergent and a certain amount of laundry. The final detergent concentration after the main wash phase and mw, 343 is calculated according to the following formula

ymw - Md / Mmw

The main wash phase is composed of the first time stage 309 and the second time stage 311.

The first time step 309 includes a saturation phase, during which a saturation of the laundry existing in the equipment for the treatment of the laundry 100 with detergent liquid is reached. Then the detergent liquid moisturizes the laundry fibers and penetrates the interior of the laundry into the equipment for the treatment of laundry 100. A wetting of the internal laundry area is achieved by a high concentration of detergent in the liquid detergent and and by a high temperature of the detergent liquid T during the saturation phase.

The second time stage 311 includes a supersaturation phase that follows the saturation phase, during which a supersaturation of the laundry that exists in the equipment for the treatment of the laundry 100 with detergent liquid is reached. To achieve a complete wetting of the interior area of the laundry, a large volume V of the detergent liquid is supplied to the laundry during the supersaturation phase. During the first time stage 309 which includes the saturation phase, the detergent liquid that is supplied to the laundry can be heated by the heat generating device 101.

The amount of Msatu detergent liquid supplied during the first time step 309 is calculated according to the following formula

Msatu - M | 0ad X 3 + Mdeadvolume Msafe | evel

The amount of laundry Mload found in the equipment for the treatment of the laundry 100 corresponds to the total weight of the laundry. Factor a is a predetermined value that depends on a certain type of laundry or a certain laundry program. Factor a can present, for example, when a wash program for cotton laundry is used with a value of 1.7. The amount of detergent liquid Mdeadvolume corresponds to the amount of detergent liquid that is needed to fill the dead volume of the wash basin 105. The Msafelevel amount corresponds to the amount of detergent liquid that is needed to refill an additional volume of the bucket of washing 105. The additional amounts of Mdeadvolume and Msafelevel detergent liquid ensure that there is a minimum amount of detergent liquid in the wash basin 105 sufficient to sufficiently wet the laundry found in the wash drum 107 during the washing process.

During the second time stage 311, which includes the supersaturation phase and which follows the first time stage 309, the amount Mos 341 of detergent liquid is provided. The addition of the amount Mos 341 of detergent liquid during the second stage of time 311 takes place after the heating of the detergent liquid by means of the heat generating device in the wash basin 105. The amount of detergent liquid supplied during the second stage of Time Mos 341 may include the amount of detergent liquid that is provided during a time interval 345 that begins at the start of the full wash program and ends after 40% of the total duration of the full wash program has elapsed. If for example the total duration of the washing program is 5 hours, then the second stage of time ends at the latest after 2 hours.

The sum of the amounts of detergent liquid Msatu contributed during the first stage of time 309 and the amounts of detergent liquid Mos 341 contributed during the second stage of time 311 results in the total amount of detergent liquid Mmw contributed during the wash phase principal.

During the first part 313 of the first time stage 309 a first quantity of a detergent liquid Msatu_1, 321 is generated with a first concentration yi, which is supplied to the wash basin 105 of the equipment for the treatment of the laundry 100. The concentration y1 of the first detergent liquid is calculated according to the following formula:

image 1

Msatu_1 corresponds to the amount of first detergent liquid 321 provided, which for example can include 8 kg of water and in which the dead volume of the wash basin 105 is taken into account. Md corresponds to the amount of detergent included in the amount provided with first detergent liquid 321.

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After the contribution of the first detergent liquid 321, there is in the wash basin 105 K detergent liquid with the concentration y1 and a first pressure P1, 323. Once the laundry has absorbed a part of the detergent liquid, the pressure of the detergent liquid drops and it reaches the second pressure P2, 325. The heat generating device 101 is then connected and due to this the amount of the first detergent liquid 321 that is in the wash basin 105 is heated. Due to the detergent concentration contributed to the detergent liquid and due to the heat provided, an effective wetting of the laundry is carried out in the washing drum 107 of the laundry treatment equipment 100.

The second part 315 of the first time stage 309 is started when the pressure of the first detergent liquid 313 in the wash basin 105 corresponds to the second predetermined pressure P2, 325 and after the second predetermined pressure P2, 325 has elapsed the first time interval t2, 327 default. By delaying the supply of additional detergent liquid it is ensured that the amount of the first detergent liquid 321 in the wash basin 105 sufficiently moisturizes the laundry. During the second part 315 of the first time step 309 an amount of a second detergent liquid 329 is generated with a second concentration and 2 of detergent in the second detergent liquid, which is added to the wash basin 105 of the equipment for the treatment of wash 100. The second concentration y2 of the second detergent liquid is calculated according to the following formula:

image2

Msatu_2 corresponds to the amount of second detergent liquid 329 contributed. Md corresponds to the amount of detergent found in the amount of the second detergent liquid 329 provided. The second concentration y2 of the detergent in the second detergent liquid 329 has a lower concentration than the concentration of the detergent in the first detergent liquid provided. The second concentration y2 of the detergent in the second detergent liquid provided may be in a range of 50% to 99% of the first detergent concentration in the first detergent liquid.

The third part 317 of the first time step 309 is an optional part that is not necessarily an integral part of the process. The third part 317 of the first time step 309 is introduced when the pressure of the detergent liquid in the wash basin 105 corresponds to the predetermined third pressure P3, 331 and has elapsed after the capture of the third predetermined pressure P3, 311 the second time interval t3, 333.

By delaying the supply of additional detergent liquid it is ensured that the detergent liquid found in the wash basin 105 can sufficiently wet the laundry. Next, a quantity of a fourth detergent liquid 335 is generated by the detergent liquid generating device 103 with a fourth concentration and 4 of detergent in the detergent liquid, which is added to the wash basin 105 of the laundry treatment equipment 100 The fourth concentration y4 of the fourth detergent liquid is calculated according to the following formula:

image3

Msatu-4 corresponds to the amount of fourth detergent liquid 335 contributed. Md corresponds to the

amount of detergent found in the amount of the fourth detergent liquid 335. The fourth concentration y4 of the detergent in the fourth detergent liquid has a lower concentration than the concentration of the detergent in a first detergent liquid provided in an anterior part. The fourth concentration y4 of the detergent in the fourth detergent liquid provided may be in a range of 50% to 99% of the first detergent concentration in the first detergent liquid.

If a fourth detergent liquid is added, the second concentration and 2 of the second detergent liquid provided in a range of 60% to 99% of the first detergent concentration in the first detergent liquid provided in a previous part can be found.

The first time stage 309, which corresponds to the saturation phase, ends when a predetermined time has elapsed during which heat is generated by the heat generating device or the detergent liquid has reached the first temperature by means of the heat generating device 337, which corresponds to the maximum temperature of the detergent liquid during the washing process. After reaching the maximum temperature, it is expected until the second time interval cough, 339 predetermined, has elapsed.

Alternatively, the first time step 309 can also be closed when the pressure of the detergent liquid corresponds to a predetermined Pos pressure and after reaching the predetermined pressure a predetermined time interval has elapsed.

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10

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twenty

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40

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fifty

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65

During the first part 313, the second part 315 and the third part 317 of the first time stage 309 does not rotate the washing drum or rotate with a rotation frequency of less than 100 v / min in one direction, to ensure a wetting Enough of the laundry.

During the first time stage 309 of the washing process, a high temperature of the detergent liquid and a high detergent concentration of the detergent liquid are ensured in comparison with the detergent liquid used in the second time stage 311. This makes possible a complete humidification of the outer and inner areas of the laundry in the washing drum 107 of the laundry treatment equipment 100.

The second time stage 311 of the washing process, which corresponds to a supersaturation phase, is carried out after the heating phase of the detergent liquid is completed by the heat generating device 101 and includes the treatment of the laundry in the washing drum 107 of the equipment for the treatment of laundry 100 with a volume of detergent liquid having a low detergent concentration, lower than the detergent concentration in the detergent liquid during the first time step 309.

The second time step 311 of the washing process can be started when after reaching a maximum temperature 337 or after reaching the fourth preset pressure Pos in the detergent liquid t0s of the wash basin 105, the predetermined time interval cough, 339, has elapsed.

By delaying the supply of additional detergent liquid it is ensured that the detergent liquid in the wash basin 105 can sufficiently wet the laundry. During the first part 319 of the second time stage 311, the third detergent liquid 341 is generated by means of the washing liquid generating device 103 with a third concentration of detergent, which is added to the washing tank 105 of the treatment equipment of laundry 100. The third yos concentration of the third detergent liquid is calculated according to the following formula:

yos = Md / Mos

Mos corresponds to the amount of third detergent liquid 341 contributed. Md corresponds to the amount of detergent found in the third detergent liquid supplied. The third yos concentration of the third detergent liquid provided is a lower concentration than the detergent concentrations in the first, second and fourth detergent liquid provided. Due to the lower concentration in detergent in the fourth detergent liquid, as well as the residual heat remaining in the detergent liquid, a complete wetting of the outer and inner areas of the entire laundry in the wash drum 107 is achieved.

The amount of detergent liquid supplied during the second time step Mos, 341 may include the amount of detergent liquid that is added during the time interval 345, which begins with the start of the full wash program and ends after a 40 % of the total duration of the complete washing program. In this way a complete wetting of the laundry as a whole is achieved.

During the second stage of time 311 there is no limitation as to the frequency of rotation of the washing drum in the washing machine.

All the features described and shown in relation to the different embodiments of the invention may be provided in different combinations in the object according to the invention, to realize at the same time their advantageous effects.

The scope of protection of the present invention is determined by the claims and is not limited by the features explained in the description or shown in the figures.

Reference List

 100

 laundry treatment equipment

 101

 heat generating device

 103

 liquid detergent generating device

 105

 wash basin

 107

 washing drum

 200

 process

 201

 procedure step: generation of a first detergent liquid in a first part a first time stage

 203

 procedure stage: generation of a second detergent liquid in a first stage of time a second part

 205

 procedure stage: generation of a fourth liquid detergent in a first stage of time a third part

from

from

from

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207 procedure stage: generation of a third detergent liquid in a first part of a second time stage

300 procedure

301 temperature curve of detergent liquid

303 pressure curve of detergent liquid 305 quantity of detergent liquid contributed 307 evolution over time

309 first time stage

311 second time stage

313 first part of the first stage of time

315 second part of the first stage of time

317 third part of the first stage of time

319 first part of the second stage of time

321 amount of a first detergent liquid

323 first pressure

325 second pressure

327 first time interval

329 amount of a second detergent liquid

331 third pressure

333 second time interval

335 quantity of a fourth detergent liquid

337 first temperature

339 third time interval

341 amount of a third detergent liquid

343 amount of detergent liquid after the main wash cycle

345 segment of time after a 40% duration of the entire washing process

Claims (15)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 60 65 1. Equipment for the treatment of the laundry (100) for treating the laundry with a heat generating device (101) for generating heat, with a detergent liquid generating device (103) for generating detergent liquid and a wash basin (105 ) to house the detergent liquid, characterized in that the detergent liquid generating device (103) is constituted to generate a first detergent liquid (321) with a first concentration of a detergent in a first part (313) of a first time stage (309), a second detergent liquid (329) with a second concentration of the detergent in a second part (315) of the first time stage (309), the first concentration being greater than the second concentration, a third detergent liquid (341) with a third concentration of the detergent in a first part (319) of a second stage of time (311), the third concentration being smaller than the second concentration and The heat generating device (101) is constituted to generate in the first stage of time (309) a first temperature (337) of detergent liquid and in the second stage of time (311) a second temperature of detergent liquid, the first being temperature (337) higher than the second temperature. 2. Equipment for the treatment of laundry (100) according to claim 1, characterized in that the detergent liquid generating device (103) is configured to generate a fourth detergent liquid (335) with a fourth concentration of the detergent in a third part (317) of the first time stage (309), the fourth lower concentration being to the second concentration. 3. Equipment for the treatment of laundry (100) according to claim 1 or 2, characterized in that the detergent liquid generating device (103) is configured to modify the concentration of the detergent in the detergent liquid in the wash basin ( 105) by providing a quantity of detergent liquid to the wash basin (105) 4. Equipment for the treatment of the laundry (100) according to one of the preceding claims, characterized in that the equipment for the treatment of the laundry (100) includes a washing drum (107) in the washing tray (105) , because the detergent liquid generating device (103) is configured to introduce a certain amount of detergent liquid into the wash basin (105) based on an amount of laundry existing in the wash drum (107) of the treatment equipment of the laundry (100) or a type of laundry existing in the washing drum (107) of the laundry treatment equipment (100). 5. Equipment for the treatment of laundry (100) according to one of the preceding claims, characterized in that the detergent liquid generating device (103) is configured to provide a minimum volume of an amount of detergent liquid to the wash basin (105), the minimum volume being greater than a dead volume of the wash basin (105). 6. Equipment for the treatment of laundry (100) according to claim 5, characterized in that the minimum volume of the amount of detergent liquid contributed to the wash basin (105) is greater than the sum of the dead volume of the wash basin (105) and another additional volume of the wash basin (105). 7. Equipment for the treatment of laundry (100) according to one of the preceding claims, characterized in that the second concentration of the detergent in the second detergent liquid (329) is in a range of 50% to 99% of the first Detergent concentration in the first detergent liquid (321). 8. Equipment for the treatment of laundry (100) according to one of the preceding claims 2 to 7, characterized in that the fourth concentration of the detergent in the fourth detergent liquid is lower than the first concentration of the detergent in the first detergent liquid (321), the fourth concentration being in particular in a range of 50% to 99% of the first concentration. 9. Equipment for the treatment of laundry (100) according to one of the preceding claims, characterized in that the equipment for the treatment of laundry (100) includes a pressure sensor, because the pressure sensor is configured to capture a pressure of the detergent liquid in the wash basin (105) because the detergent liquid generating device (103) is configured to provide detergent liquid to the wash basin (105) when the detected pressure corresponds to a first predetermined pressure. 5 10 fifteen twenty 25 30 35 40 Four. Five fifty 10. Equipment for the treatment of laundry (100) according to claim 9, characterized in that the detergent liquid generating device (103) is configured to add a second detergent liquid (329) to the wash basin (105) after a predetermined time interval (327) after a second pressure (325) has been collected default of the first detergent liquid (321) in the wash basin (105). 11. Equipment for the treatment of laundry (100) according to claim 9 or 10, characterized in that the detergent liquid generating device (103) is configured to add a fourth detergent liquid (335) to the wash basin (105) ) after a predetermined time interval (333) after a predetermined third pressure (331) of the detergent liquid is captured in the wash basin (105). 12. Equipment for the treatment of laundry (100) according to one of the preceding claims, characterized in that the detergent liquid generating device (103) is configured to add a third detergent liquid to the wash basin (105) once after a predetermined time interval (339) after a first temperature (337) of the detergent liquid is reached in the wash basin (105). 13. Equipment for the treatment of the laundry (100) according to one of the preceding claims, characterized in that the equipment for the treatment of the laundry (100) includes a washing drum (107) supported such that it can rotate in the tray for washing (105), the washing drum (107) being constituted to rotate during the first stage of time (309) with a rotation frequency less than a maximum rotation frequency, in particular with a rotation frequency of less than 100 turns per minute. 14. Procedure (200) for the treatment of laundry in an equipment for the treatment of laundry (100) with a heat generating device (101) to generate heat, with a liquid detergent generating device (103) to generate liquid detergent and a wash basin (105) to house detergent liquid, characterized in that the method (200) includes the generation (201) of a first detergent liquid (321) with a first concentration of a detergent in a first part (313) of a first time stage (309) by the liquid generating device detergent (103), the generation (203) of a second detergent liquid (329) with a second concentration of the detergent in a second part (315) of the first time step (309) by means of the detergent liquid generating device (103) , the first concentration being higher than the second concentration and the second detergent liquid being heated in the first stage of time to a first temperature (337), the generation (207) of a third detergent liquid (341) with a third concentration of the detergent in a first part (319) of a second time stage (311) by means of the washing liquid generating device (103), the third being concentration below the second concentration and heating the detergent liquid generated in the second stage of time to a second temperature and the first temperature (337) being higher than the second temperature. 15. Procedure according to claim 14, characterized in that the process includes the generation (205) of a fourth detergent liquid (335) with a fourth concentration of the detergent in a third part (317) of the first time stage (309), the fourth concentration being lower than the second concentration .