EP4215599A1 - Procédé d'obtention de savon - Google Patents

Procédé d'obtention de savon Download PDF

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Publication number
EP4215599A1
EP4215599A1 EP20954015.2A EP20954015A EP4215599A1 EP 4215599 A1 EP4215599 A1 EP 4215599A1 EP 20954015 A EP20954015 A EP 20954015A EP 4215599 A1 EP4215599 A1 EP 4215599A1
Authority
EP
European Patent Office
Prior art keywords
soap
obtaining
jug
reagent
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20954015.2A
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German (de)
English (en)
Other versions
EP4215599A4 (fr
Inventor
Javier Vidorreta Salillas
Mikel SANZ TOBARRA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soluciones Circulares De Navarra SL
Original Assignee
Soluciones Circulares De Navarra SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Soluciones Circulares De Navarra SL filed Critical Soluciones Circulares De Navarra SL
Publication of EP4215599A1 publication Critical patent/EP4215599A1/fr
Publication of EP4215599A4 publication Critical patent/EP4215599A4/fr
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D13/00—Making of soap or soap solutions in general; Apparatus therefor
    • C11D13/10—Mixing; Kneading

Definitions

  • the object of the present invention relates to a device for obtaining soap which allows the domestic manufacture of soap in a simple and systematic manner, through a sequence of steps to be performed by the user at home, without the need for prior knowledge in the field of saponification.
  • the device for obtaining soap that is the object of the present invention also provides great safety for the user, who does not need to come into contact with caustic substances at any time.
  • the device for obtaining soap object of the present invention is applicable in the field of the industry for the design, manufacture, marketing and operation of household appliances for domestic or hospitality use, as well as in the field of the industry for the manufacture of soaps.
  • the usual main processes in manufacture of soap include: stockpiling essential materials for the manufacture (an oil of vegetable or animal origin, or tallow, and a strong alkali or base, typically sodium hydroxide (caustic soda) or hydroxide potassium (potash)); supplying oil or fat to a heated container; adding the alkali, while adding water to the mixture and stirring; and there may also be a refining and customizing phase, where dyes and fragrances are added. Finally, it is left to cool and the reaction ends, obtaining the final product.
  • essential materials for the manufacture an oil of vegetable or animal origin, or tallow, and a strong alkali or base, typically sodium hydroxide (caustic soda) or hydroxide potassium (potash)
  • supplying oil or fat to a heated container
  • adding the alkali while adding water to the mixture and stirring
  • there may also be a refining and customizing phase where dyes and fragrances are added.
  • application KR1020130125607A describes an apparatus for manufacturing soap which uses used cooking oil to prepare soap.
  • a first storage container includes externally supplied used cooking oil; a second container includes caustic soda; all this is brought together in a stirring part that receives the used cooking oil and caustic soda, stirring and mixing them for a set time. Finally, the mixture is poured into a tray in the interior and left to settle.
  • the present invention relates to a device for obtaining soap, which allows the processes necessary for obtaining soap to be simplified and automated, in such a way that it facilitates obtaining the soap by any person in a home setting safely.
  • the device for obtaining soap object of the present invention comprises a body and a jug that is removable from the body of the device.
  • the jug is configured to hold oil (or any oil, fat or tallow from which soap can be obtained) collected by a user of the device.
  • the jug comprises:
  • the body of the device comprises:
  • a household appliance-type tool which facilitates obtaining both liquid and solid soap by any person (user) with absolute safety in their own home, in an automated manner, without the need to know a lot about the chemistry of the saponification process.
  • the reagent supply module comprises a compartment (or carousel) with at least one chamber configured to hold the reagent (preferably in capsule, sachet or tablet format, and preferably covered with a water-soluble material that isolates the reagent from contact with the user's hand, while allowing the reagent to be properly preserved until it is used in the process of obtaining the soap).
  • the reagent supply module is controlled by the control system to supply the reagent to the jug through a supply conduit at a certain time throughout the process of obtaining the soap.
  • control system is configured to act on a second motor configured to rotate the compartment (or carousel), causing an outlet opening of the at least one chamber to coincide with a slot that gives way to the supply conduit.
  • a second motor configured to rotate the compartment (or carousel), causing an outlet opening of the at least one chamber to coincide with a slot that gives way to the supply conduit.
  • the compartment (or carousel) comprises two chambers, one chamber being configured to hold the reagent with the oil to bring about the saponification reaction to obtain the soap, and another chamber being configured to hold a mixture of soap refining and customizing substances.
  • the device can be equipped with the possibility of supplying substances that allow the soap obtained to be customized (for example, through dyes or perfumes, which give the soap the desired appearance and smell, as well as physical qualities such as density, texture or viscosity).
  • the reagent supply module comprises at least one position sensor configured to read a rotational position of the compartment (or carousel).
  • the rotational position of the compartment is controlled, causing the outlet opening of the chamber containing the reagent and/or the chamber containing the refining and customizing substance to coincide at the precise time with the slot that gives way to the supply conduit for supplying the substance in question to the jug.
  • the reagent supply module comprises a presence sensor for detecting the presence of the reagent in the corresponding chamber of the compartment.
  • the presence sensor is connected to the control system.
  • the control system is configured to allow the process of obtaining the soap to start only if it detects that there is a reagent in the corresponding chamber of the compartment (or carousel). This feature makes it possible to guarantee that the process of obtaining the soap cannot be started (unsuccessfully, due to a possible oversight of the user) if the reagent has not been introduced into the corresponding chamber of the compartment.
  • the two chambers have different shape conditions associated with each reagent capsule.
  • the previous feature of the presence sensor is also preferably applied to the chamber containing the refining and customizing substance.
  • the reagent supply module comprises a lid and an opening sensor for the lid, as well as sealing gaskets that guarantee correct sealing.
  • the opening sensor is connected to the control system.
  • the control system is configured to allow the process of obtaining the soap to start only if it detects that the lid is closed. In this way, it is possible to avoid interference or the possible accidental introduction of objects into the reagent supply module during the process of obtaining the soap.
  • the reagent supply module comprises the rotating compartment (or carousel)
  • this feature of preventing the start of the process if the lid is open avoids interferences such as the possible introduction of the user's finger into one of the chambers of the compartment, and the possibility of the device catching the user's finger when rotating the compartment (or carousel) or of being able to cause splashing or gas leaks.
  • the device comprises an oil volume meter configured to measure the volume of oil present in the jug.
  • the oil volume meter is connected to the control system.
  • the control system is configured to allow the process of obtaining the soap to start only if it detects that the volume of oil present in the jug is between a minimum threshold and a maximum threshold.
  • the water supply system comprises a water volume sensor for detecting the water volume in the water reservoir.
  • the water volume sensor is connected to the control system.
  • the control system is configured to allow the process of obtaining the soap to start only if it detects that the water volume inside the water reservoir is above a predetermined minimum threshold. In this way, the process of obtaining the soap being able to start when the user has not introduced a sufficient amount of water into the reservoir is prevented.
  • the water supply system comprises a pump, a water conduit, a water outlet nozzle and, optionally, a flow meter.
  • the flow meter and the pump are connected to the control system.
  • the control system is configured to control the amount of water supplied to the jug at all times throughout the process of obtaining the soap. In this way, it is possible to dose the amount of water that has been introduced into the jug at all times of the process of obtaining the soap, and it is even possible to gradually introduce a certain amount of water throughout the entire process of obtaining the soap, and interrupt the supply of water during certain periods of the process of obtaining the soap, for example, while the reagent is being supplied.
  • the water reservoir is removable from the body of the device.
  • the water supply system then comprises a globe valve configured to open when the water reservoir is inserted into the body of the device, allowing the passage of water from the water reservoir to the water conduit. In this way, in the event that the pump is turned on, said pump is prevented from working and sucking in air from the environment because the water reservoir has not been connected to the body of the device.
  • the device comprises a protective screen configured to seal the space between the jug and the body of the device to prevent the gas leaks or splashes of the mixture from the jug out of the device during the process of obtaining the soap.
  • This protective screen is configured as a continuation of the side wall or walls of the jug, tightly sealing the space located between the upper opening or mouth of the jug and the body of the device.
  • the protective screen is configured to be assembled and disassembled by means of a pin that can be actuated by the user once the jug is positioned in the device. This allows the user to be able to manually actuate or assemble the protective screen.
  • a pin that can be actuated by the user once the jug is positioned in the device.
  • the device comprises an assembly sensor configured to detect whether the protective screen is assembled or disassembled.
  • the assembly sensor is connected to the control system.
  • the control system is configured to allow the process of obtaining the soap to start only if it detects that the protective screen is assembled. In this way, it is possible to prevent the process of obtaining the soap from starting with the protective screen disassembled, thus avoiding the risk that the user may inhale the gases released during the saponification process or that the liquid reagent spills or overflows. from the jug.
  • the device comprises an anchoring detector configured to detect whether the jug is anchored or inserted in the body of the device.
  • the anchoring detector is connected to the control system.
  • the control system is configured to allow the process of obtaining the soap to start only if it detects that the jug is anchored to the body of the device. In this way, it is possible to prevent the first motor from starting to rotate the gear wheel without the jug having been introduced, and it also prevents the water supply system from starting to supply water and the reagent supply module from supplying said reagent without the jug having been introduced or anchored or inserted in the body of the device.
  • the device includes thermal detection means, such as a thermal probe or a thermal switch.
  • thermal switch configured to control the temperature of the mixture of the oil and the reagent in the jug.
  • the thermal switch is connected to the control system.
  • the control system is configured to send an open command to a first switch, disconnecting a power supply to the heating element, if it detects that the temperature of the mixture of the oil and the reagent exceeds a predetermined upper threshold. In this way, it is possible to control the temperature of the mixture of oil, water and the reagent, avoiding overheating of said mixture, and keeping it at an optimal temperature to maximize the efficiency of the process of obtaining the soap.
  • the device for obtaining soap comprises a user interface (for example, a touch screen, and/or a screen together with one or more buttons and a possible loudspeaker).
  • This user interface is configured to allow the user to select between different types of processes of obtaining the soap (for example, it allows the user to choose a process to obtain liquid soap or a process to end up obtaining a solid soap, which will involve different reagents, different proportions of water, different times and/or temperatures). These types of processes can be automatically regulated by the device without the need for any adjustment by the user.
  • the user interface is also configured to display information about the progress of the process of obtaining the soap, including warnings, in different ways such as color codes or sounds, of possible errors in the process, insufficient water in the water reservoir, insufficient or excess oil in the vat or absence of reagent (and/or refining and customizing substance) in the reagent supply module.
  • the user is guaranteed to have control of the process of obtaining the soap and to be informed at all times of any event related to it.
  • the soap device comprises a WiFi connectivity module that transmits information about the device to other devices, such as a mobile phone. This allows this device to be controlled and monitored by the user via WiFi and without the need to be in the presence of the device, such as through an app designed for this purpose. It is also contemplated that the device can be provided with firmware updates, especially remotely.
  • the present invention relates to a device for obtaining soap.
  • the device comprises a body (100) and a jug (200) or jar.
  • the jug (200) is configured to hold the oil, so that the user deposits therein used oil coming from, among others, excess oil used in cooking or oil from canned food and, during the process of obtaining the soap, also to hold the other reagents supplied by the device to produce soap.
  • the jug (200) also comprises (see Figure 7 ), at the bottom, the set of helical stirrers (201) configured to stir the oil mixed with the reagents and with the water during the process of obtaining the soap.
  • the helical stirrers (201) are attached to a shaft (206) with a first gear (207) at its end, in such a way that when inserting the jug (200) into the body (100) of the device, the end of the shaft (206) is introduced in a gear wheel (106) of the body (100) of the device.
  • the device comprises (see Figure 4 ) a first motor (101) configured to transmit the rotational movement to the gear wheel (106) by means of a cog belt mechanism (110) connected to a second gear (111) of the first motor. (101) and a third gear (112) connected to the ring gear (106).
  • the gear wheel (106) in turn transmits the rotational movement to the shaft (206) of the helical stirrers (201).
  • the device comprises a speed sensor (e.g., a Hall sensor) configured to measure the rotational speed of the first motor (101) in order to maintain adequate control of the stirring by the helical stirrers (201).
  • the first motor (101) preferably comprises a power of 500 W or more, together with a reduction gear that allows it to operate in a range between 100 and 3000 rpm.
  • the jug (200) also comprises (see Figure 7 ), at its bottom, a heating element (202) (for example, a resistor welded to the base of the jug (200)) configured to heat the mixture of oil and reagents to a temperature adequate for producing the soap (about 80 C), so that heating is brought about without direct contact with the liquid, achieving homogeneous heating by contact through the walls of the jug.
  • a heating element (202) for example, a resistor welded to the base of the jug (200) configured to heat the mixture of oil and reagents to a temperature adequate for producing the soap (about 80 C), so that heating is brought about without direct contact with the liquid, achieving homogeneous heating by contact through the walls of the jug.
  • the jug (200) is connected to connectors (103) located in the body (100) of the device, typically inserting the electrodes (203) of the jug (200) into the connectors (103).
  • a power supply is thus provided to the heating element (202), and to a first switch located in the jug (200). This first switch is configured to allow and interrupt the passage of electrical current to the heating element (202).
  • the thermal switch preferably has a precision of ⁇ 1°C in the range of 20°C to 80°C.
  • the temperature can be controlled by means of a temperature sensor for a more precise control of the temperature of the reaction.
  • the heating element (202) can be an electrical resistor, and can have a power equal to or greater than 300 W.
  • the device comprises an anchoring detector for detecting the anchoring of the jug (200) to the body (100) of the device.
  • This anchoring detector can be located in correspondence with the connectors (103), so that when the electrodes (203) of the jug (200) are inserted into the connectors (103), the anchoring detector detects that the jug (200) has been anchored to the body (100) of the device.
  • the jug can be detected by the control system (107), detecting whether or not the thermal switch is connected.
  • the thermal switch is configured to measure the temperature in the jug (200) (preferably at the base or bottom of the jug (200)) and send a disconnect/open signal when it is detected that the temperature in the jug (200) exceeds a predetermined threshold.
  • the switch can be configured to disconnect the heating element (202) when it is detected that the temperature rises above a threshold of 85°C, and may be configured to reapply power to heating element (202) when the temperature of the vat (200) drops below 79°C.
  • the device also includes an oil volume meter (109), to measure the amount of oil present in the jug (200).
  • This oil volume meter (109) can be a capacitive volume sensor. It is also contemplated that the correct positioning of the jug (200) can be detected through said capacitive volume sensor.
  • the device comprises (see Figure 3a , Figure 3b and Figure 3c ) a reagent supply module (104) for supplying reagent to the jug (200).
  • the reagent supply module (104) comprises a lid (104a), a compartment (104b) (or carousel) configured to contain one or more reagents, a supply conduit (104c) for supplying the reagent to the jug (200), a second motor (104d) (typically a DC motor or, for example, a stepper motor) configured to rotate the compartment (104b) (or carousel), at least one position sensor (104e) configured to read the rotational position of the compartment (1 04b), and an opening sensor (104f) configured to read an open and closed position of the lid (104a).
  • the compartment (104b) can have one or more chambers (104g). Each chamber (104g) is configured to hold a reagent, for example, supplied in capsule or sachet format with a wrapper, which is preferably water-soluble or fat-soluble.
  • Each chamber (104g) includes an inlet opening (104h) for introducing the reagent capsule or sachet into the corresponding chamber (104g).
  • Each chamber (104g) also includes an outlet opening (104i) which, when the compartment (104b) is rotated by means of the second motor (1 04d), is made to coincide at a certain position or angle of rotation of the compartment (104b) with a slot (104j) that gives way to the supply conduit (104c) and surrounded by a sealing gasket (1 04n), allowing the reagent capsule or sachet to fall into the jug (200) in that position, through the supply conduit (104c).
  • One chamber (104g) of the compartment (104b) can comprise a first reagent, for example a strong base or alkali (e.g., caustic soda or potash), and another chamber (104g) of the compartment (104b) can comprise a reagent to supply a perfume or color to the soap or other properties.
  • a first reagent for example a strong base or alkali (e.g., caustic soda or potash)
  • another chamber (104g) of the compartment (104b) can comprise a reagent to supply a perfume or color to the soap or other properties.
  • the two chambers (104g) have different shape conditions associated with each reagent capsule so that one cannot be mistakenly introduced into the compartment of the other. According to a design form, they will be referenced by a symbol engraved in the opening of each cavity. Thus, rotation in both directions will be brought about. In a first rotation, the compartment (104b) rotates 120°, bringing about the precipitation of the reagent capsule, then undoing the rotation to preserve total tightness. Subsequently, it performs another 120° rotation in the direction opposite the first one, thus bringing about the precipitation of the resulting soap color and perfume customizing capsule, then undoing the rotation and ending up in the initial position.
  • the second motor (104d) rotates the compartment (104b) (or carousel) by means of an intermediate cog wheel (104k) that meshes with a toothed edge (104I) of the compartment (104b).
  • the opening sensor (104f) detects that the lid (104a) is open, the actuation of the second motor (104d) is prevented and, therefore, the rotation of the compartment (104b) is blocked.
  • the reagent supply module (104) optionally comprises a presence sensor (104m) for detecting the presence of the tablet or sachet of reagent in each chamber (104g) of the compartment (104b).
  • the soap it is essential to supply a certain amount of water to the jug (200) with the mixture of the oil and reagents.
  • the amount of water to be supplied must be related to the amount of oil stored in the jug (200).
  • the device comprises (see Figure 6 ) a water supply system (105) for supplying water to the jug (200).
  • the water supply system (105) comprises a water reservoir (105a), a pump (105b) (for example, a solenoid pump), a water conduit (1 05c), a water outlet nozzle (105d), optionally a flow meter (105e), a globe valve (105f) and a water volume sensor (105g) for detecting the water volume in the water reservoir (105a).
  • the water reservoir (105a) When the water reservoir (105a) is placed in its corresponding position in the body (100) of the device, the water reservoir (105a) exerts pressure on the globe valve (105f), which opens and allows the passage of water.
  • the pump (105b) is configured to exert a vacuum in the water conduit (105c), thus propelling the water from the water reservoir (105a), through the water conduit (105c) and through the nozzle (105d) to the jug (200).
  • the volume sensor (105g) is located in the body (100) of the device, and is configured to capture the magnetic field of a buoy provided with a magnet, the buoy being located in the water reservoir (105a).
  • the volume sensor (105g) can be an optical, humidity or other type of sensor capable of detecting the water volume inside the water reservoir (105a).
  • the device comprises a protective screen (113) configured to cover in the upper area the space between the jug (200) and the body (100) of the device.
  • the protective screen (113) is configured to be assembled and disassembled by means of a pin (114).
  • Figure 2a shows the protective screen (113) in its assembled position
  • Figure 1 shows the device with the protective screen (113) disassembled and the jug (200) removed from the body (100) of the device.
  • the protective screen (113) When the protective screen (113) is in its assembled position, the protective screen (113) is arranged as an extension of the side wall or walls of the reservoir (200), guaranteeing a tight closure and thus preventing gases released from the saponification reaction inside the jug (200) from coming out and being inhaled by the user.
  • the protective screen (113) has a custom-designed molded gasket with a specific lip-type geometry.
  • the device also includes an assembly sensor of the protective screen (113).
  • This assembly sensor is configured to detect whether the protective screen (113) is assembled or disassembled.
  • the jug (200) can be easily inserted into and removed from the body (100) of the device.
  • the device comprises a control system (107). This is essentially incorporated into a printed circuit controlled by a microprocessor.
  • control system (107) The following elements of the device are connected to the control system (107):
  • the user interface (108) allows the user to select the type of work cycle of the device, as well as, optionally, to start and stop the work cycle when desired.
  • the user interface (108) also makes it possible to view the operation and the possible error codes.
  • the user interface (108) is configured to display warnings and visual information by means of a screen built into the device, as well as, optionally, audible warnings and information by means of a loudspeaker built into the device, or light signals.
  • the user interface (108) comprises one or more buttons or push buttons that allow the user to select the type of work cycle and other operating parameters of the device. These capacitive buttons or pushbuttons can be integrated into the user interface screen (108), in which case it is a touch screen or tactile interactive graphic display.
  • the control system (107) of the device is configured to allow the actuation of the water pump (105b), only in the case of receiving a signal from the volume sensor (105g) indicating that the water level inside the water reservoir (105a) exceeds a certain threshold value, making it possible to check that there is enough water at the start of the process.
  • the control system (107) of the device is configured to allow the actuation of the first motor (101), only in the case of receiving:
  • the control system (107) checks the water volume existing in the water reservoir (105a). If the water threshold is exceeded, the user receives a positive indicator; if the threshold is not exceeded, the user receives an alert and is asked to fill the water reservoir (105a). Therefore, at the start of a work cycle, the control system (107) of the device is configured to allow the actuation of the first motor (101), only in the case of receiving water from the water volume sensor (105g) for detecting the water volume in the water reservoir (105a) a signal indicating that the water level inside the water reservoir (105a) exceeds a certain threshold value.
  • the control module (107) is in charge of controlling the power of the different elements of the device.
  • This module (107) can be associated with two TRIACs, with a TRIAC and a relay, or simply with a relay for power control of the first motor (101) and the heating element (202) which, together with the speed sensor and the thermal switch, allow the device to be provided with a double PID control of process variables.
  • the device includes a controller to act on:
  • the module (107) can also control the readings of the position sensors (104e), there being several sensors for measuring the start and end positions, and thus detecting the rotational position or angle of rotation of the compartment (104b) or slide, of the presence sensor (104m) for detecting the presence of the tablet or sachet of reagent in each chamber (104g) of the compartment (104b), of the water volume sensor (105g) for detecting the water volume in the reservoir (105a), of the assembly sensor of the protective screen (113), of the opening sensor (104f) for the lid (104a) of the reagent supply module (104), and of the oil volume meter (109).
  • the position sensors (104e) there being several sensors for measuring the start and end positions, and thus detecting the rotational position or angle of rotation of the compartment (104b) or slide, of the presence sensor (104m) for detecting the presence of the tablet or sachet of reagent in each chamber (104g) of the compartment (104b), of the water volume sensor (105g) for detecting the
  • the microcontroller of the electronic module (107) includes a hardware code execution monitor (watchdog) to restart the firmware of the different elements connected to it in case of code execution failure.
  • control module (107) will include a serial communication port to be able to connect with a USB or WiFi communication module and/or with a graphic user interface module depending on the user interface (108) used, on the capacitive pushbuttons and RGB LEDs or graphic touch screen, which may be different for different models of the device.
  • the choice also depends on the desired wireless connectivity with other devices. In this way, through the WiFi module, it would be possible to control the device through the use of an app.
  • the microprocessor of the module (107) is an 8-bit microprocessor/microcontroller.
  • Firmware is stored in a flash memory and can be updated through the serial communication.
  • This firmware stored in memory in the module (107) includes, at a first level, the routines to periodically calculate the temperature of the mixture in the jug (200) and the rotational speed of the first motor (101), as well as to update the position of the compartment (104b) or carousel, verify the presence of the reagent capsules, tablets or sachets in each chamber (104g) of the compartment (104b), the water level in the water reservoir, the amount of water added to the mixture, the position of the lid (104a) of the compartment (104b) of the capsules/sachets/tablets and the anchoring/locking of the jug (200), the oil level in the jug (200), to detect the times the user presses the user interface (108) and to turn on the audible and/or light indicators of the user interface (108).
  • the module has the following functions:
  • the third level of the firmware includes the routines to calculate the times of the work cycle or program and the amount of water to be added based on the program selected by the user, as well as to control the time elapsed in each phase of the work cycle and the state of the detectors/sensors/probes/meters to guarantee safety throughout each stage of the work cycle.
  • this part of the firmware incorporates the management and storage of device state variables and possible alarms and faults detected. It also optionally includes the communications routines necessary for wireless communication with other possible user interface devices (smartphones, tablets, etc.).
  • the oil volume in the jug (200) should be measured in two phases.
  • the user In the first, the user must visually monitor the oil volume. While the user pours the oil into the jug (200), by means of a lateral strip (208) of transparent thermosetting polymer, the user will be able to observe the height of the liquid (the oil level reached inside the jug (200)). When the oil reaches the level indicated for the type of cycle to be performed (liquid soap or bar soap), the user must stop pouring oil.
  • the jug (200) has at least one liquid height mark that marks the ideal volume for manufacturing, for example, each type of soap.
  • the second reading phase occurs after placing the jug (200) in the device and turning it on.
  • the oil volume meter (109) (typically a capacitive sensor) is aligned with the strip of polymer placed on the wall on which the jug (200) rests.
  • the oil volume meter (109) senses the oil volume and, preferably, the change in volume after the water is poured.
  • the strip of polymer preferably has an optimal width for viewing the contents.
  • the reading of the oil volume meter (109) allows knowing if the oil volume is correct for the process of manufacturing the soap. This makes it possible to check that the oil level is adequate for the type of soap to be obtained, which will have been previously selected by the user in the user interface (108). If it is not in this range, the device sends an error message through the user interface (108) for the user to reset the amount of oil. If it is by default, completing with more oil when it is available. And if it is due to excess, removing the jug (200) and pouring the excess into another container.
  • the oil volume meter (109) of the jug (200) measures the oil level to confirm that the amount of oil is sufficient while the water volume sensor (105g) of the reservoir (105a) (preferably also a capacitive-type sensor) does the same with the water level.
  • the oil volume meter (109) can check that the liquid volume is correct at the start of the process and/or once mixing is taking place.
  • the presence sensor(s) (104m) for detecting the presence of the tablet or sachet of reagent in each chamber (104g) of the compartment (104b), as well as the opening sensor (104f) (preferably a Hall sensor-type magnetic sensor) for the lid (104a) of the compartment (104b) of the reagent supply module (104) are typically photocell-type sensors (although they could be capacitive or pressure-actuated limit-switch sensors). These sensors (104m, 104f) ensure the existence of a tablet in the chambers (104g) of the compartment (104b) or carousel, and record if light enters them in order to identify if the lid (104a) is closed.
  • the opening sensor (104f) for the lid (104a), as well as the assembly sensor of the protective screen (113) are arranged to ensure that the protective screen (113) and the cover (104a) of the reagent supply module (104) are closed before starting the operation of the device.
  • the remaining sensors ensure correct operation of the device and send information to the control system (107) for monitoring.
  • capsules tablets or sachets (hereinafter, capsules) to be introduced into the different chambers (104g) of the compartment (104b) or carousel of the reagent supply module (104), these capsules can be: a reagent capsule to bring about the saponification reaction; and a soapy product refining and customizing capsule.
  • this is the tablet used in the saponification phase of the corresponding operating cycle of the device.
  • This capsule contains the reagents for the saponification reaction that turns oil into soap to be brought about. Its main component is a strong base, such as potassium or sodium hydroxide, which are used to obtain liquid or bar soap, respectively.
  • the reagent may be made up of potassium hydroxide or sodium hydroxide, which are caustic compounds that can cause burns when in contact with the skin. For this reason, it is necessary for this compound to be covered with a protective medium which, while preventing contact with the user, protects the basic compound from being deactivated by the effect of atmospheric components such as CO 2 .
  • This coating must be soluble in the reaction mixture, and must be compatible with the chemical reagents it contains. In this way, the user will be able to touch the capsule with his or her hand, without the need for any additional protection, and keep it safely under normal environmental conditions.
  • the soapy product refining and customizing capsule can comprise three main components: an acid reagent that is used to neutralize the essential product; fragrance; and dyes. These last two components are used to modify the color and smell of the soap. There are also optionally other substances that modify the physical properties such as the texture, density or viscosity of the final product.
  • the refining or customizing capsule can be compartmentalized to prevent the different elements from mixing, which at least in part may be in a liquid state since the mixing is carried out at lower revolutions to avoid the formation of foam.
  • the reagent capsule and/or the refining capsule can incorporate coadjuvant compounds that increase the stability of the final product, such as surfactants and/or binders and/or water hardness correctors.
  • the jug (200) includes a filtration accessory (210) for filtering out the impurities in the oil introduced by the user.
  • This accessory could be a kind of filter or strainer, which can be removed and washed independently of the jug (200).
  • a paper-type filter that filters not only by particle size but also by chemical composition, thus avoiding undesirable substances that may be present in the waste oil. This special paper filter is known in and of itself.
  • the jug (200) has an ergonomic grip or handle for comfortable handling by the user and, optionally, an upper lid (205) on the filtering part that is mechanically actuated with the thumb of the hand holding the handle.
  • the device can incorporate a pH sensor to measure the pH level of the soapy product obtained once the cycle is finished, ensuring that the soapy product obtained has a pH level suitable for handling by the user.
  • the device would try to solve it and, if not possible, it would give off an alert to discard the result.
  • a color pH indicator could optionally be used, so that the resulting product has the color of the indicator so that the user can ensure that the final pH is correct.
  • the control system (107) is prepared for its connectivity with external devices, thus integrating itself into an loT system, and into a BigData and artificial intelligence environment.
  • the user interface (108) is intuitive and friendly, giving the user information about the work cycle and all the variables related to it at all times.
  • different icons associated with different variables could be identified on the user interface, in which a series of LEDs light up green if the process is carried out correctly and red if there is some type of incident.
  • the objective of this saponification phase is to mix water and oil in order to obtain a stable emulsion within which the saponification reaction is carried out, properly and completely dissolving the normally solid reagent. This requires stirring at high speed and at high temperature (around about 80-85°C) for about one hour. In this phase, less water is used to achieve a high concentration of basic reagent (leading to a very high pH), thus trying to maximize the conversion of residual oil and avoiding its existence in the final product. During this stage, a highly viscous product is obtained which, due to the centrifugal force, tends to accumulate on the walls of the jug (200).
  • This effect is influenced by the shape and the diameter ratio of the helical stirrers (201) and the inside of the jug (200). For this reason, the helical stirrers (201) inside the jug (200) have a diameter ratio with respect to the jug to favor the shear stress in the mixing and the hydrodynamics of the reaction, engulfing the liquid towards the helical stirrers in order to avoid the accumulation on the walls and a not completely homogeneous mixture.
  • the jug (200) is preferably made of a chemically compatible material, or lined with it, with the demanding conditions set by the reaction mixture in the saponification phase.
  • the process of refining the properties of the soap resulting from the saponification phase occurs by neutralizing the excess caustic reagent. Also, in this phase it is possible to customize the fragrance, color, texture, density, etc., of the product to suit the user, who can choose from among different capsules that will be distinguished by their final characteristics.
  • This phase can be subdivided into the following stages:
  • the main objective of this phase is to ensure that the final product is stable, pleasing to the user and safe for use.
  • the mixture obtained in the previous stage is stirred at low speed (lower than the stirring of the saponification phase, for example, around 500 rpm) for the necessary time, with the reagents from the refining and customizing capsule and the amount of water necessary to achieve a chemically stable material and with a pH value compatible with its safe handling by the user.
  • the process allows the appropriate viscosity and final appearance to be achieved. At this point it is important not to generate a high volume of foam.
  • the final result is a viscous liquid product that is poured into a specific container for storage (bottle or mold).
  • liquid soap the product will be ready to be used after completion of the refining and customizing stage.
  • the product will be ready to be used after the curing process, which may take days for the soap to reach a pH suitable for use (up to about 40 days).

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Sampling And Sample Adjustment (AREA)
EP20954015.2A 2020-09-17 2020-09-17 Procédé d'obtention de savon Pending EP4215599A4 (fr)

Applications Claiming Priority (1)

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PCT/ES2020/070557 WO2022058626A1 (fr) 2020-09-17 2020-09-17 Procédé d'obtention de savon

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EP4215599A4 EP4215599A4 (fr) 2024-06-19

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ES1077013Y (es) 2012-03-08 2012-08-23 Mattos Analia Blanco Dispositivo para la fabricación de jabón
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CN117348421B (zh) * 2023-10-17 2024-03-19 西安航空学院 油品制备的自适应自动控制系统及方法

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