KR20130135675A - Lid device with ultraviolet ray sterilization function - Google Patents

Lid device with ultraviolet ray sterilization function Download PDF

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Publication number
KR20130135675A
KR20130135675A KR1020120059456A KR20120059456A KR20130135675A KR 20130135675 A KR20130135675 A KR 20130135675A KR 1020120059456 A KR1020120059456 A KR 1020120059456A KR 20120059456 A KR20120059456 A KR 20120059456A KR 20130135675 A KR20130135675 A KR 20130135675A
Authority
KR
South Korea
Prior art keywords
ultraviolet
lid
container
sterilization function
window
Prior art date
Application number
KR1020120059456A
Other languages
Korean (ko)
Inventor
김창식
송미영
김태현
김은혜
Original Assignee
주식회사 소냐엘에스
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 주식회사 소냐엘에스 filed Critical 주식회사 소냐엘에스
Priority to KR1020120059456A priority Critical patent/KR20130135675A/en
Publication of KR20130135675A publication Critical patent/KR20130135675A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A23L3/28—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating with ultraviolet light
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
    • A23L5/27—Removal of unwanted matter, e.g. deodorisation or detoxification by chemical treatment, by adsorption or by absorption
    • A23L5/276—Treatment with inorganic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/30—Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/06—Lids or covers for cooking-vessels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J47/00—Kitchen containers, stands or the like, not provided for in other groups of this subclass; Cutting-boards, e.g. for bread
    • A47J47/02—Closed containers for foodstuffs
    • A47J47/08—Closed containers for foodstuffs for non-granulated foodstuffs
    • A47J47/10—Closed containers for foodstuffs for non-granulated foodstuffs with arrangements for keeping fresh
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2200/00—Function of food ingredients
    • A23V2200/10—Preserving against microbes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J2202/00—Devices having temperature indicating means

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

The present invention discloses a lid apparatus having an ultraviolet sterilization function that can cover the container such as food, material, etc. to perform ultraviolet sterilization of the contents. The present invention is to cover the inlet of the container to accommodate the contents, the lid is formed with an electrical chamber having a window, the seal is coupled to the edge of the lid to maintain the airtight at the inlet of the container, and the electrical chamber It is composed of an ultraviolet source which is mounted and emits ultraviolet rays for sterilizing microorganisms through the window, and a controller which is mounted on one side of the lid to control the operation of the ultraviolet source. According to the present invention, the ultraviolet light sterilization function is provided on the lid coupled to the container such as food, material, and the like, and the ultraviolet light sterilization of contents stored in the container can be easily and efficiently performed. In addition, by the dehumidification and deodorization function of the dehumidifying agent accommodated in the lid has an effect that can be stored safely for a long time to improve the usefulness.

Description

Lid device with UV sterilization function {LID DEVICE WITH ULTRAVIOLET RAY STERILIZATION FUNCTION}

The present invention relates to a lid device, and more particularly, to a lid device having an ultraviolet sterilization function capable of covering the container such as food, material and the like to perform ultraviolet sterilization of the contents.

UV sterilization sterilizes microorganisms such as bacteria, Escherichia coli, mold, and yeast by using ultraviolet rays having a wavelength of 250 to 260 nm. Ultraviolet rays have a wavelength of 2,000 to 3,000 Å, and especially high sterilizing wavelengths are known to be around 2,600 Å.

Ultraviolet lamps (Ultraviolet lamp) are used for this ultraviolet sterilization. Ultraviolet lamps are low-pressure mercury lamps containing a small amount of mercury in quartz tubes or special glass tubes through which ultraviolet rays can pass. UV lamps are also called germicidal lamps and are available in a variety of shapes and structures. Recently, the use of ultraviolet light emitting diodes (UV LEDs) has been adopted for ultraviolet sterilization. Ultraviolet LEDs have the advantages of higher efficiency, lower cost, and smaller size than ultraviolet lamps.

However, as described above, the ultraviolet lamp and the ultraviolet LED are limited to places or devices for sterilization. In particular, there is a demand for the development of an ultraviolet sterilizer capable of performing ultraviolet sterilization of contents such as food, materials, etc., which are easily inhabited by bacteria and Escherichia coli when exposed to air by opening the container.

The present invention is to solve various problems of the prior art as described above. SUMMARY OF THE INVENTION An object of the present invention is to provide a lid apparatus with a new ultraviolet sterilization function which can cover a container such as a food or a material and perform ultraviolet sterilization of contents.

Another object of the present invention is to provide a lid device having an ultraviolet sterilization function which can improve the usability by dehumidification and deodorization functions.

According to one aspect of the invention, there is provided a lid device having an ultraviolet sterilization function. According to an aspect of the present invention, there is provided a lid apparatus having an ultraviolet sterilization function, including: a lid having an electric apparatus room having a window formed by being covered at an entrance of a container containing contents; A seal mounted to the edge of the lid, the seal being coupled to maintain the air tightness at the inlet of the container; An ultraviolet source mounted in the electrical apparatus room and emitting ultraviolet rays for sterilization of microorganisms through the window; It includes a controller mounted on one side of the lid to control the operation of the ultraviolet source.

The lid device with ultraviolet sterilization function according to the present invention is equipped with a ultraviolet sterilization function on the lid coupled to a container such as food, materials, and the like to ultraviolet sterilize the contents stored in the container, so that hygiene management can be easily and efficiently performed. Can be. In addition, by the dehumidification and deodorization function of the dehumidifying agent accommodated in the lid has an effect that can be stored safely for a long time to improve the usefulness.

1 is a perspective view of the lid from the bottom to separate the configuration of the lid device according to the invention.
Figure 2 is a perspective view of the lid in plan view to separate the configuration of the lid device according to the present invention.
3 is a cross-sectional view showing the configuration of a lid device according to the present invention.
4 is a block diagram illustrating the control of the lid apparatus according to the present invention.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments with reference to the accompanying drawings.

Hereinafter, preferred embodiments of the lid device with ultraviolet sterilization function according to the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIGS. 1 to 3, the lid device 10 according to the present invention includes a lid 20. The lid 20 is an inlet 6 of a container 4 that accommodates and stores various contents such as foods and materials that are easily rotted or harmful to a user due to exposure to microorganisms such as bacteria, E. coli, mold, and yeast. It is configured to cover.

A boss 24 having an electrical chamber 22 is formed in the center of the upper surface of the lid 20. The boss 24 is composed of an upper boss portion 24a and a lower boss portion 24b. The upper boss portion 24a is coupled to the lower boss portion 24b so as to be separated by a screwing method. The electrical equipment room 22 is comprised of the upper space 22a formed in the upper boss part 24a, and the lower space 22b formed in the lower boss part 24b. A plurality of holes 24c are formed on the upper surface of the lower boss portion 24b so that the upper space 22a and the lower space 22b communicate with each other.

A window 26 for emitting ultraviolet rays is formed in the lower portion of the electrical chamber 22. A plurality of vent holes 28 are formed at the edge of the window 26 to communicate with the electrical chamber 22. The lid 20 may be made of various materials such as metal, plastic, ceramic, and the like. When the lid 20 is made of metal, the metal may be made of stainless steel having a high reflectance of ultraviolet rays.

A transmission plate 30 through which ultraviolet light can pass is additionally mounted to the window 22. The transmission plate 30 may be made of a translucent or opaque material. The transmission plate 30 prevents dust from entering the inside of the electrical chamber 22. In the present embodiment, the vent holes 28 may be formed in the transmission plate 30. In addition, the transmission plate 30 may be deleted. In this case, since the electrical chamber 22 is ventilated by the window 26, the vent holes 28 can be deleted.

Seal 40 is ring-type and is coupled to the edge of lid 20 covering the inlet 6. The seal 40 may be made of a flexible material, for example, silicon rubber, synthetic rubber, synthetic resin, or the like. Due to the flexibility of the seal 40, the container 4 can be easily coupled and separated, and can be completely sealed between the container 4 and the lid 20. In this embodiment, the seal 40 may be made of a hard plastic material. In this case, the seal 40 may be coupled to the container 4 by screwing in order to maintain the sealing of the container 4.

The lid device 10 according to the present invention includes an ultraviolet light bulb (Ultraviolet bulb) 52 as an ultraviolet source 50 mounted on the inner center of the lid 20 for ultraviolet radiation. The ultraviolet bulb 52 is housed in the electrical equipment room 22. Ultraviolet rays emitted by the operation of the ultraviolet bulb 52 are irradiated inside the container 4 through the window 26. In the present embodiment, the ultraviolet light source 50 may be composed of an ultraviolet lamp and an ultraviolet LED.

1 to 4, the lid device 10 according to the present invention includes a controller 60 mounted to one side of the lid 20 to control the operation of the ultraviolet light bulb 52. The controller 60 is composed of a microcomputer. The control panel 62 is mounted on one side of the outer surface of the lid 20 so as to be connected to the controller 60. The control panel 62 includes a power on / off switch 62a, a keypad 62b, and a liquid crystal display 62c. After turning on the power on / off switch 62a, the user may set a control mode for operating the ultraviolet light bulb 42 by manipulating the keypad 62b. The control mode is displayed on the liquid crystal display 62c.

The temperature sensor 64 is mounted on one inner surface of the lid 20 so as to be connected to the controller 60. The temperature sensor 64 detects a temperature around the lid 20 and inputs it to the controller 60. The controller 60 controls the operation of the ultraviolet light bulb 52 according to the temperature input from the temperature sensor 64. The power supply unit 70 is connected to the ultraviolet light bulb 42 and the controller 60 to supply power. The power supply unit 70 includes a power cord 72 connected to commercial power. The power supply unit 70 automatically cuts off power when an overcurrent or a short circuit occurs. The power supply unit 70 includes a rechargeable battery 74. The rechargeable battery 74 is charged by the operation of the power supply unit 70. In this embodiment, the power cord 72 may be configured to be connected and disconnected by the power supply unit 70 and the jack (Jack).

As shown in FIG. 2, the power supply unit 70 may include a solar cell 76. The solar cell 76 is attached to the upper surface of the lid 20 to convert solar energy or lighting into electrical energy to supply the power required for the operation of the lid device 10 according to the present invention. In the present embodiment, when the power supply unit 70 is composed of a solar cell 76, the ultraviolet source 40 is preferably composed of an ultraviolet LED.

1 to 3, the lid device 10 according to the present invention includes a charcoal 82 as a dehumidifying agent 80 accommodated for dehumidification inside the lid 20. The charcoal 82 is housed in one side of the electrical equipment room 22. The charcoal 82 has a purifying function of absorbing and releasing moisture, odor and adsorbing pollutants in the air by the micropores. As the dehumidifying agent 80, activated carbon, calcium chloride, or the like may be used. The far-infrared radiator 84, for example, loess ball 86, ceramic ball, or the like is housed in the container 80. With the far infrared emitter 84, the ocher balls 86 are heated by the heat of the ultraviolet bulb 42 to emit far infrared rays. Far infrared rays have the effect of deodorization, bioactivation and the like.

In the lid device 10 according to the present invention having such a configuration, the user combines the seal 40 to the inlet 6 of the container 4 in which the food 2 is stored to cover the container 4. Close 20. Lid device 10 according to the present invention is a cordless type (Cordless type) capable of supplying the power required for the operation of the ultraviolet light bulb 52 by the rechargeable battery 74 can be used easily regardless of the place.

As shown in Fig. 3, when the user turns on the power on / off switch 62a, the ultraviolet light bulb 52 is activated. Ultraviolet rays emitted by the operation of the ultraviolet light bulb 52 penetrate the transmission plate 30 to sterilize microorganisms such as bacteria, E. coli, mold, and yeast. For example, in the case of milk powder, when the milk powder is opened, the milk powder is exposed to the air, and bacteria, E. coli, etc. are likely to multiply, and when infants ingest the milk powder that is breeding bacteria, causing enteritis. This is common. Lid device 10 according to the present invention can be easily and effectively hygiene management to prevent the sterilization and decay of the food (2) by the ultraviolet sterilization of the ultraviolet light bulb (52).

On the other hand, the charcoal 82 is removed by absorbing moisture. When the ambient air is dry, charcoal 82 releases the moisture it has absorbed. In addition, the charcoal 82 purifies the air by adsorbing odors and pollutants in the air. The ocher ball 86 is heated by the heat of the ultraviolet bulb 42 to emit far infrared rays. Therefore, the contents contained in the container 4 can be safely stored for a long time.

3 and 4, when the temperature input from the temperature sensor 140 is higher than the set temperature, the controller 60 stops the operation of the ultraviolet light bulb 52 to prevent overheating. After turning off the power on / off switch 62a, the user can separate the seal 40 from the container 4, take out the food 2 through the inlet 6 of the container 4, and take it in.

The embodiments described above are merely illustrative of the preferred embodiments of the present invention, the scope of the present invention is not limited to the described embodiments, those skilled in the art within the spirit and claims of the present invention It will be understood that various changes, modifications, or substitutions may be made thereto, and such embodiments are to be understood as being within the scope of the present invention.

4: container 10: lid
20: lid 22: electrical room
40: thread 50: UV source
52: ultraviolet light bulb 60: controller
64: temperature sensor 70: power supply
74: rechargeable battery 76: solar cell
80: dehumidifying agent 82: charcoal
84: far infrared emitter 86: ocher ball

Claims (7)

A lid which covers an inlet of a container for containing contents and is formed with an electrical chamber having a window;
A seal mounted to an edge of the lid, the seal being coupled to maintain the airtightness at the inlet of the container;
An ultraviolet source mounted in the electrical apparatus room and emitting ultraviolet rays for sterilizing microorganisms through the window;
Lid device with ultraviolet sterilization function comprising a controller mounted to one side of the lid for controlling the operation of the ultraviolet light source. The method of claim 1,
Lid device having an ultraviolet sterilization function in which any one of a dehumidifying agent and a far-infrared radiator radiating far infrared rays is accommodated in said electrical equipment room. 3. The method of claim 2,
The ultraviolet source is made of an ultraviolet light bulb, the dehumidifier is made of charcoal, the far infrared emitter is a lid device having an ultraviolet sterilization function consisting of ocher balls. 4. The method according to any one of claims 1 to 3,
Lid device having an ultraviolet sterilization function is further mounted to the window is a transmission plate through which the ultraviolet rays emitted from the ultraviolet source can pass. 4. The method according to any one of claims 1 to 3,
Lid apparatus having a UV sterilization function is further equipped with a temperature sensor for sensing the temperature inside the lid to input to the controller. 4. The method according to any one of claims 1 to 3,
Lid device having an ultraviolet sterilization function is further mounted to the window is a transmission plate through which the ultraviolet rays emitted from the ultraviolet source can pass. 4. The method according to any one of claims 1 to 3,
And a solar cell mounted to the lid to supply power for the operation of the ultraviolet source and the controller.
KR1020120059456A 2012-06-01 2012-06-01 Lid device with ultraviolet ray sterilization function KR20130135675A (en)

Priority Applications (1)

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KR1020120059456A KR20130135675A (en) 2012-06-01 2012-06-01 Lid device with ultraviolet ray sterilization function

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014172052A3 (en) * 2013-03-18 2014-12-11 Sensor Electronic Technology, Inc. Ultraviolet disinfection case
US9801965B2 (en) 2013-03-18 2017-10-31 Sensor Electronic Technology, Inc. Ultraviolet disinfection case
KR20180000481U (en) 2016-08-10 2018-02-21 윤이서 Drink vessel cap
CN107920681A (en) * 2015-08-25 2018-04-17 雀巢产品技术援助有限公司 With the apparatus and method that beverage is prepared by liquid of the machine supplied to package
CN108618627A (en) * 2017-03-20 2018-10-09 佛山市顺德区美的电热电器制造有限公司 Sterilization module, sterilization control method, sterilization control system and cooking apparatus
DE102017131306A1 (en) * 2017-12-27 2019-06-27 Forschungsverbund Berlin E.V. Device for disinfecting liquid in a vessel
CN110193088A (en) * 2018-02-26 2019-09-03 紫岳科技有限公司 Ultraviolet ray disinfecting system
WO2020111914A1 (en) * 2018-11-30 2020-06-04 서울바이오시스 주식회사 Waterproof sterilization module and carrier comprising same
KR102127934B1 (en) * 2019-11-26 2020-07-09 오환종 Uv sterilization multi cover
KR20200109662A (en) * 2019-03-14 2020-09-23 (주)에스에치테크놀로지 Disinfection apparatus using ultra violet led and the method for sterilizing beverage using the same
KR20210012254A (en) * 2019-07-24 2021-02-03 주식회사 쉐어라이트 Sterilizer
KR102235324B1 (en) * 2020-12-11 2021-04-02 ㈜동양이지텍 Vacuum rice storage container with sterilization function
US10988388B2 (en) 2017-12-04 2021-04-27 Share Light Co., Ltd. Sterilizing apparatus
EP3854473B1 (en) 2020-01-24 2023-03-01 Daw Se Tinting system for a kit-of-parts tinting system, method for producing a tinted paint or plaster system and use of the tinting system

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9006680B2 (en) 2013-03-18 2015-04-14 Sensor Electronic Technology, Inc. Ultraviolet disinfection case
US9801965B2 (en) 2013-03-18 2017-10-31 Sensor Electronic Technology, Inc. Ultraviolet disinfection case
US10342884B2 (en) 2013-03-18 2019-07-09 Sensor Electronic Technology, Inc. Ultraviolet disinfection case
WO2014172052A3 (en) * 2013-03-18 2014-12-11 Sensor Electronic Technology, Inc. Ultraviolet disinfection case
CN107920681A (en) * 2015-08-25 2018-04-17 雀巢产品技术援助有限公司 With the apparatus and method that beverage is prepared by liquid of the machine supplied to package
KR20180000481U (en) 2016-08-10 2018-02-21 윤이서 Drink vessel cap
CN108618627A (en) * 2017-03-20 2018-10-09 佛山市顺德区美的电热电器制造有限公司 Sterilization module, sterilization control method, sterilization control system and cooking apparatus
CN108618627B (en) * 2017-03-20 2021-05-04 佛山市顺德区美的电热电器制造有限公司 Sterilization assembly, sterilization control method, sterilization control system and cooking appliance
US10988388B2 (en) 2017-12-04 2021-04-27 Share Light Co., Ltd. Sterilizing apparatus
DE102017131306A1 (en) * 2017-12-27 2019-06-27 Forschungsverbund Berlin E.V. Device for disinfecting liquid in a vessel
CN110193088A (en) * 2018-02-26 2019-09-03 紫岳科技有限公司 Ultraviolet ray disinfecting system
WO2020111914A1 (en) * 2018-11-30 2020-06-04 서울바이오시스 주식회사 Waterproof sterilization module and carrier comprising same
KR20200109662A (en) * 2019-03-14 2020-09-23 (주)에스에치테크놀로지 Disinfection apparatus using ultra violet led and the method for sterilizing beverage using the same
KR20210012254A (en) * 2019-07-24 2021-02-03 주식회사 쉐어라이트 Sterilizer
KR102127934B1 (en) * 2019-11-26 2020-07-09 오환종 Uv sterilization multi cover
WO2021107182A1 (en) * 2019-11-26 2021-06-03 오환종 Uv sterilization multi-cover
EP3854473B1 (en) 2020-01-24 2023-03-01 Daw Se Tinting system for a kit-of-parts tinting system, method for producing a tinted paint or plaster system and use of the tinting system
KR102235324B1 (en) * 2020-12-11 2021-04-02 ㈜동양이지텍 Vacuum rice storage container with sterilization function

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