WO2022034689A1 - Récipient pour liquide, couvercle intérieur, élément cylindrique, élément en forme de tige et couvercle intérieur côté corps - Google Patents

Récipient pour liquide, couvercle intérieur, élément cylindrique, élément en forme de tige et couvercle intérieur côté corps Download PDF

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Publication number
WO2022034689A1
WO2022034689A1 PCT/JP2020/030900 JP2020030900W WO2022034689A1 WO 2022034689 A1 WO2022034689 A1 WO 2022034689A1 JP 2020030900 W JP2020030900 W JP 2020030900W WO 2022034689 A1 WO2022034689 A1 WO 2022034689A1
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WO
WIPO (PCT)
Prior art keywords
fine particles
bacteria
lid
liquid
inner lid
Prior art date
Application number
PCT/JP2020/030900
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English (en)
Japanese (ja)
Inventor
宏紀 長谷川
Original Assignee
株式会社エイエムジー
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 株式会社エイエムジー filed Critical 株式会社エイエムジー
Priority to KR1020207031621A priority Critical patent/KR102205319B1/ko
Priority to PCT/JP2020/030900 priority patent/WO2022034689A1/fr
Priority to JP2020560848A priority patent/JP6882815B1/ja
Publication of WO2022034689A1 publication Critical patent/WO2022034689A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/0068—Jars
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/18—Casings combined with other objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/28—Applications of food preservatives, fungicides, pesticides or animal repellants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D2034/002—Accessories
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D2040/0006—Accessories

Definitions

  • the present invention relates to a liquid container, an inner lid, a tubular member, a rod-shaped member, and an inner lid on the main body side.
  • an antiseptic paraben, etc.
  • an additive such as phenoxyethanol having an antiseptic effect
  • Patent Document 1 a technique for filling cosmetics in a container having a small capacity sufficient for filling a single use amount has been proposed (for example, Patent Document 1).
  • the liquid is a cosmetic product.
  • the amount used at one time is very small, filling a container with a capacity small enough to fill the amount used at one time with liquid requires a large number of containers.
  • the amount used at one time may be different for different people, and even for the same person, it may be different depending on the situation, so that the amount of cosmetics in the container may be excessive or deficient, and eventually, Liquid may be wasted.
  • the present invention provides a liquid container, an inner lid, a tubular member, a rod-shaped member, and an inner lid on the main body side that can reduce bacteria in the liquid.
  • the first invention is a liquid container having a container body for storing a liquid and a lid that is detachably engaged with the container body, and the container body is a main body portion constituting the basic structure of the container body. And, it is composed of an inner surface portion constituting the inner surface of the container body, and the inner surface portion is sterilized in which metal fine particles having an effect of reducing bacteria are dispersed in a resin and the action of the fine particles reduces bacteria.
  • the fine particles are configured so as not to be exposed on the surface of the inner surface portion, and the sterilized portion is configured according to the type of bacteria that is assumed to be a problem at each position of the inner surface portion. It is a liquid container in which the type of the metal to be used is specified.
  • the inner surface portion is configured by dispersing metal fine particles having an effect of reducing bacteria in the resin, and the surface of the fine particles is not exposed on the surface of the inner surface portion.
  • the metal does not come into direct contact with the liquid. Therefore, the components of the metal and the liquid cause a chemical reaction, and the liquid does not denature.
  • the types of bacteria that can be effectively reduced differ depending on the type of metal. The inventor of the present invention has found, for example, that there are metals that can effectively reduce aerobic bacteria and metals that can effectively reduce anaerobic bacteria.
  • the inventor of the present invention determines the type of metal effective for reducing the type of bacteria, which is assumed to be a problem in the position of the inner surface portion, and disperses the determined metal fine particles in the sterilized portion. I came up with the technology to make it (hereinafter referred to as "selective dispersion").
  • selective dispersion since the types of metals constituting the sterilized portion are defined according to the types of bacteria that are assumed to be problematic at each position of the inner surface portion, selective dispersion is performed. It can be realized.
  • a second aspect of the invention is that, in the configuration of the first invention, the inner surface portion contains a plurality of types of fine particles of the metal, depending on the type of bacteria that is assumed to be a problem at each position of the inner surface portion. It is a liquid container in which the content of each fine particle of the metal is defined with respect to the total content of the fine particles of the metal.
  • the type of bacteria that is supposed to be a problem at a specific position on the inner surface is not limited to one type.
  • the inventor of the present invention has found that there are a plurality of types of bacteria that are supposed to be problematic at a specific position on the inner surface, and the types of bacteria that can be relatively abundant differ depending on the specific position.
  • rice field For example, aerobic and anaerobic bacteria can be problematic at any location on the inner surface, but above, there are more aerobic bacteria than anaerobic bacteria, and below, anaerobic bacteria are more than aerobic bacteria. It is expected that there are many.
  • the inventor of the present invention blends fine particles of a plurality of types of metals for effectively reducing each type of bacteria according to the types of a plurality of types of bacteria that are supposed to cause a problem at a specific position.
  • load distribution the technology to disperse in the sterilized part
  • the inner surface portion contains fine particles of a plurality of types of metals, and the fine particles of each metal are considered to be problematic at each position of the inner surface portion. Since the content of is specified, load distribution can be realized. Load distribution is a subordinate technology of selective distribution.
  • each position of the inner surface portion includes an upper portion located relatively upper and a lower portion located relatively lower, and the upper portion.
  • the type of bacteria that is assumed to be relatively likely to be a problem in the above is aerobic bacteria, and the type of bacteria that is assumed to be relatively likely to be a problem in the lower part is anaerobic.
  • It is a bacterium, and in the upper portion, the content of fine particles of the metal having a property of effectively reducing the aerobic bacterium is increased, and in the lower portion, the anaerobic bacterium is contained.
  • It is a liquid container configured to increase the content of fine particles of the metal having a property of effectively reducing the amount.
  • the type of metal is determined according to the type of bacteria which is assumed to be relatively likely to be a problem, and the fine particles of the metal are determined.
  • the content of the fine particles of the metal having the property of effectively reducing the aerobic bacteria decreases from the upper side to the lower side of the inner surface portion. It is a liquid container configured to increase the content of fine particles of the metal having the property of effectively reducing the anaerobic bacteria.
  • the content of fine metal particles capable of effectively reducing bacteria is defined according to the possibility that aerobic bacteria and anaerobic bacteria may be a problem.
  • Bacteria can be effectively reduced at each position.
  • the content of the metal fine particles on the inner surface portion is closer to the surface of the inner surface portion in contact with the liquid. It is a liquid container that is configured to be large.
  • the metal fine particles are configured so that the closer the position is closer to the surface of the inner surface in contact with the liquid, the higher the content thereof, so that the bacteria are effectively reduced. be able to.
  • the thickness of the inner surface portion is formed to a thickness within a predetermined range defined in relation to the size of the outer shape of the fine particles. It is a liquid container.
  • the sixth invention for example, focusing on the specific surface area of fine particles, the smaller the diameter of the fine particles, the thinner the inner surface portion, or the total surface area of the fine particle group composed of many fine particles. It is possible to more effectively utilize the bacterial reduction effect of the fine particles, such as defining the thickness of the inner surface portion wall based on the above.
  • the inner surface portion has a side surface portion and a bottom surface portion, and the side surface portion and / or the bottom surface portion has a plurality of convex portions.
  • a liquid container formed as an uneven surface having a portion and a recess.
  • the area where the inner surface portion is in contact with the liquid can be formed larger than the case where the inner surface portion is a curved surface or a flat surface without unevenness, so that the bacteria can be reduced more effectively by the fine particles.
  • the effect can be utilized.
  • the inner surface portion has a side surface portion and a bottom surface portion, and only one of the side surface portion or the bottom surface portion has. It is a liquid container configured as the sterilized part.
  • bacteria are effectively reduced by configuring only the bottom portion as a sterilization portion, and in the case of an elongated container body, the side surface portion. Bacteria can be effectively reduced by configuring only as a sterilized part.
  • the ninth invention is a liquid container having a container body for storing liquid and a lid that is detachably engaged with the container body, and an inner lid is connected to the lid via a connecting member.
  • the inner lid is composed of an inner lid main body that constitutes an upper portion and an inner lid lower portion that constitutes a lower portion.
  • the inner lid lower portion contains metal fine particles having an effect of reducing bacteria in a resin.
  • the lower part of the inner lid is configured so that the fine particles are not exposed on the surface of the lower part of the inner lid.
  • the length is defined as an adjustable length that allows the inner lid to contact the bottom surface of the container body, and the length of the connecting member is adjusted so that the inner lid is stored in the container body.
  • the lower part of the inner lid is configured to be in contact with the liquid regardless of the amount of the liquid, and the lower part of the inner lid can effectively reduce aerobic bacteria among a plurality of types of fine particles of the metal. It is a liquid container configured to have a large content of fine particles of the metal having a property of being capable of being formed.
  • bacteria may be generated on the upper surface that comes into contact with the outside air or the user's hand.
  • the lower part of the inner lid configured as the sterilized part comes into contact with the upper surface of the liquid, so that it occurs on the upper surface of the liquid. Bacteria can be effectively reduced.
  • a tenth invention is a liquid container having a container body for storing a liquid and a lid that is detachably engaged with the container body, and a tubular member is connected to the lid.
  • the surface layer portion of the tubular member is configured as a sterilized portion in which metal fine particles having an effect of reducing bacteria are dispersed in the resin and the bacteria are reduced by the action of the fine particles, and the surface layer portion of the tubular member is The fine particles are configured so as not to be exposed on the surface of the surface layer portion, and the length of the tubular member is defined as a length in contact with the bottom surface of the container body and is stored in the container body.
  • the surface layer portion of the inner surface and the outer surface of the tubular member is configured to be in contact with the liquid, depending on the type of bacteria that is assumed to be a problem at each position of the surface layer portion. It is a liquid container in which the type of the metal constituting the sterilized portion is specified.
  • the inner surface and the outer surface layer portion of the tubular member configured as the sterilizing portion come into contact with the liquid, so that the bacteria generated in the liquid Can be effectively reduced.
  • the eleventh invention is a liquid container having a container body for storing a liquid and a lid that is detachably engaged with the container body, and at least one rod-shaped member is connected to the lid.
  • the surface layer portion of the rod-shaped member is configured as a sterilized portion in which metal fine particles having an effect of reducing bacteria are dispersed in the resin and the bacteria are reduced by the action of the fine particles, and the surface layer portion is described as described above.
  • the rod-shaped member is configured so as not to be exposed on the surface of the surface layer portion, the rod-shaped member is connected to a position separated from the center of the lid body, and the lid body is attached to and detached from the container body.
  • the surface layer portion of the rod-shaped member configured as the sterilized portion comes into contact with the liquid, so that the bacteria generated in the liquid are effectively treated. Can be reduced. Further, when the lid is attached to and detached from the container body, the liquid is agitated by the rod-shaped member, and the rod-shaped member comes into contact with many parts of the liquid, so that bacteria can be reduced more effectively.
  • the twelfth invention is a liquid container having a container main body for storing liquid and a lid detachably engaged with the container main body, and the main body side inner lid is arranged on the container main body.
  • the main body side inner lid has a main body side inner lid main body portion constituting an upper portion and a main body side inner lid lower portion constituting a lower portion, and a through hole is formed through the main body side inner lid in the vertical direction.
  • the lower part of the inner lid on the main body side is configured as a sterilization part in which metal fine particles having an effect of reducing bacteria are dispersed in the resin and the action of the fine particles reduces bacteria.
  • Is configured so that the fine particles are not exposed on the surface of the inner lower part of the main body side, and the lower part of the inner lid of the main body side is in contact with the liquid and the inner lid of the main body side is moved so as to press the liquid.
  • the liquid is extruded from the through hole, and the lower part of the inner lid on the main body side has the property of effectively reducing aerobic bacteria among a plurality of types of fine particles of the metal.
  • the sterilized portion at the lower part of the inner lid on the main body side reduces the bacteria in the liquid, and moreover, the liquid other than the liquid used by the user is not exposed to the outside, so that it is contaminated with the external bacteria. It is unlikely that it will be done.
  • the thirteenth invention is an inner lid connected to a lid that is detachably engaged with a container body for storing liquid, and the inner lid is connected to the lid via a connecting member.
  • the inner lid main body constitutes the upper part
  • the inner lid lower part constitutes the lower part.
  • metal fine particles having an effect of reducing bacteria are dispersed in the resin, and the fine particles are formed.
  • the lower part of the inner lid is configured so that the fine particles are not exposed on the surface of the lower part of the inner lid, and the length of the connecting member is the same as the inner part.
  • the lid is defined as an adjustable length that allows contact with the bottom surface of the container body, and by adjusting the length of the connecting member, regardless of the amount of the liquid stored in the container body.
  • the lower part of the inner lid is configured to be in contact with the liquid, and the lower part of the inner lid contains fine particles of the metal having a property of effectively reducing aerobic bacteria among a plurality of types of fine particles of the metal. It is an inner lid that is configured to contain a large amount.
  • the fourteenth invention is a tubular member connected to a lid that is detachably engaged with a container body that stores a liquid
  • the surface layer portion of the tubular member is a metal having an effect of reducing bacteria.
  • the fine particles are dispersed in the resin and are configured as a sterilized portion that reduces bacteria by the action of the fine particles, and the surface layer portion is configured so that the fine particles are not exposed on the surface of the surface layer portion.
  • the length of the tubular member is defined as the length in contact with the bottom surface of the container body, and the surface layer portion of the inner surface and the outer surface of the tubular member regardless of the amount of the liquid stored in the container body. Is a tubular member that is configured to be in contact with the liquid, and the metal constituting the sterilized portion is defined according to the type of bacteria that is assumed to be a problem at each position of the surface layer portion. be.
  • the fifteenth invention is a rod-shaped member connected to a lid that is detachably engaged with a container body for storing a liquid
  • the surface layer portion of the rod-shaped member is a metal fine particle having an effect of reducing bacteria.
  • a rod-shaped member that is configured to stir the liquid and in which the metal that constitutes the sterilized portion is defined according to the type of bacteria that is assumed to be a problem at each position of the surface layer portion. be.
  • the sixteenth invention is a main body side inner lid arranged in a container main body for storing liquid
  • the main body side inner lid is a main body side inner lid main body portion constituting an upper portion and a main body side constituting a lower portion.
  • the lower part of the inner lid is integrally formed to form a through hole that penetrates the inner lid on the main body side in the vertical direction, and the lower part of the inner lid on the main body side is made of a metal having an effect of reducing bacteria.
  • the fine particles are dispersed in the resin and are configured as a sterilized portion that reduces bacteria by the action of the fine particles, and the inner lower portion on the main body side is configured so that the fine particles are not exposed on the surface of the inner lower portion on the main body side.
  • the lower portion of the inner lid on the main body side is in contact with the liquid, and the inner lid on the main body side is moved so as to press the liquid so that the liquid is extruded from the through hole.
  • the lower part of the lid is a main body side inner lid configured to contain a large amount of the metal fine particles having a property of effectively reducing aerobic bacteria among the plurality of types of the metal fine particles.
  • bacteria in the liquid can be reduced.
  • the liquid container 1 has a lid 10 and a container body 20.
  • the container body 20 has a hollow structure, and the liquid is stored in the space of the hollow structure.
  • the lid 10 also has a hollow structure.
  • the direction connecting the lid 10 and the container body 20 is referred to as "vertical direction”
  • the direction of the lid 10 is referred to as "upper side”
  • the direction of the container body 20 is referred to as "lower side”.
  • the liquid container 1 is an example of a liquid container.
  • “liquid” does not matter the viscosity.
  • liquid means a substance that is not a solid or a gas, and includes any of water, a colloidal solution, a gel-like substance, and a cream-like substance.
  • the “liquid” includes a cosmetic liquid, a dentifrice, a bathing agent, and the like. That is, in the present invention, “liquid” is a "liquid substance”.
  • the container main body 20 is composed of a main body portion 22 constituting the basic structure of the container main body 20 and an inner surface portion 24.
  • the main body portion 22 constitutes the outer layer portion of the container main body 20
  • the inner surface portion 24 constitutes the inner layer portion of the container main body.
  • the inner surface portion 24 is formed inside the main body portion 22 in a state of being in contact with the main body portion 22.
  • the main body 22 is formed, for example, by injection molding a resin.
  • a resin constituting the main body 22 for example, a polyolefin-based resin such as polypropylene, a polystyrene-based resin, or a polyester-based resin can be used.
  • the inner surface portion 24 is molded of resin.
  • the type of resin constituting the inner surface portion 24 the same resin as that of the main body portion 22 may be adopted, or a different resin may be adopted.
  • a large number of fine particles of metal having an effect of reducing bacteria are dispersed and present in the resin constituting the inner surface portion 24.
  • the inner surface portion 24 is configured as a sterilized portion.
  • the inner surface portion 24 is configured so that fine metal particles are not exposed on the surface.
  • the inner surface portion 24 is formed by, for example, mixing resin powder and a large number of fine particles of metal, adding an appropriate coupling material such as a silane coupling material, and other additives as necessary, and injection molding. ..
  • the meaning of "reducing bacteria” includes the meaning of preventing the growth of bacteria and reducing or eliminating the bacteria that have developed.
  • the inner surface portion 24 is composed of an upper portion 24a located relatively upper and a lower portion 24b located relatively lower.
  • the main body portion 22 and the inner surface portion 24 are integrally formed.
  • An appropriate manufacturing method can be used for integrally forming, but for example, a molding method such as insert molding, in-mold molding, or two-color molding is used.
  • the method for forming the inner surface portion 24 is not limited to the above method.
  • the inner surface portion 24 may be connected to the inside of the main body portion 22 with a sheet (foil) in which the above-mentioned metal is dispersed in a resin. Further, the inner surface portion 24 may generate a coating agent from the resin and the above-mentioned metal and apply it to the inside of the main body portion 22.
  • Metals having the effect of reducing bacteria are, for example, copper (Cu) and silver (Ag).
  • the metal having the effect of reducing bacteria is not limited to copper and silver, and may be zinc, for example.
  • the upper portion 24a of the inner surface portion 24 is formed by dispersing copper fine particles in the resin.
  • the lower portion 24b is formed by dispersing silver fine particles in the resin.
  • the main body portion 22 is composed of a base portion 22a and a connecting portion 22b.
  • a male threaded portion 22c is formed on the connecting portion 22b.
  • a female threaded portion 10c is formed on the inner surface 10b of the lid 10. The male threaded portion 22c of the connecting portion 22b engages with the female threaded portion 10c formed on the inner surface of the lid body 10, so that the lid body 10 and the container body 20 are detachably engaged with each other.
  • FIG. 6 is a schematic plan view of the container body 20 of FIG. 5 as viewed from the direction of arrow Z1.
  • FIG. 7 is a schematic cross-sectional view taken along the AA line of the container body 20 shown in FIG. As shown in FIG. 7, the thickness W1 of the base portion 22a of the main body portion 22 is larger than the thickness W2 of the inner surface portion 24. In other words, the thickness W2 of the inner surface portion 24 is smaller than the thickness W1 of the main body portion 22.
  • the ratio C (W2 / W1) of the thickness W2 of the inner surface portion 24 to the thickness W1 of the main body portion 22 is specified to be 0.001 or more and 0.050 or less, and preferably 0.002 or more and 0.008 or less. It is stipulated in.
  • the thickness W1 of the main body portion 22 is 3 millimeters (mm)
  • the thickness W2 of the inner surface portion 24 is 20 micrometers ( ⁇ m)
  • the ratio C (W2 / W1) is 0.007.
  • the inner surface portion 24 is configured as a sterilization portion for reducing bacteria.
  • the main body portion 22 is configured as a non-sterile portion that does not have the effect of reducing bacteria.
  • FIG. 9 is a conceptual diagram showing a part B1 of the upper portion 24a of the inner surface portion 24 shown in FIG. 8 in an enlarged manner.
  • the upper portion 24a is configured by dispersing copper fine particles 28A in the resin 26.
  • the fine particles 28A are not exposed on the surface of the upper portion 24a and are covered with the resin 26.
  • "copper” shall include copper and copper oxide.
  • the predetermined range of the thickness W2 of the upper portion 24a is defined in relation to the size of the outer shape of the fine particles 28A.
  • the thickness of the upper portion 24a is equal to the thickness of the lower portion 24b.
  • the thickness of the upper portion 24a and the thickness of the lower portion 24b are referred to as "thickness of the inner surface portion 24".
  • the maximum value (d50) of the particle size distribution of the fine particles is used as the size of the fine particles 28A.
  • the diameter ⁇ 1 corresponding to d50 is defined as the size of the fine particles 28A.
  • the definition of "diameter” with a diameter of ⁇ 1 is the equivalent diameter of a sphere.
  • the diameter ⁇ 1 is measured using, for example, a laser diffraction type particle size distribution measuring device.
  • the diameter ⁇ 1 may be an average particle diameter. Since FIG. 9 is a conceptual diagram, only fine particles 28A having a single diameter of ⁇ 1 are displayed for convenience of explanation, but in reality, the maximum value is set to ⁇ 1 in diameter on the inner surface portion 24. A group of particles having a predetermined particle size distribution (typically a normal distribution) is dispersed.
  • the diameter ⁇ 1 of the fine particles 28A is defined in a predetermined range, for example, 10 nanometers (nm) or more and less than 100 nanometers, preferably 10 nanometers or more and less than 80 nanometers, and more preferably 10 nanometers or more. It is nanometers or more and 40 nanometers or less, and more preferably 10 nanometers or more and 20 nanometers or less.
  • the outer shape of the fine particles 28A is, for example, a sphere. However, the outer shape is not limited to a sphere.
  • the fine particles 28A for example, copper particles of the "copper nanoparticles SFCP series" manufactured by Fukuda Metal Foil Powder Industry Co., Ltd. (20, Nishinoyama Nakatomi-cho, Yamashina-ku, Kyoto) can be used.
  • the thickness W2 of the inner surface portion 24 is larger than the diameter ⁇ 1 of the fine particles 28A, and further larger than the fine particles 28A having the largest particle size in the particle size distribution.
  • the fine particles 28A are surely covered with the resin 26 and are not exposed on the surface of the inner surface portion 24, and the content of the fine particles 28A in the inner surface portion 24 can be ensured within a predetermined range.
  • the diameter ⁇ 1 is 50 nanometers (nm).
  • the predetermined range of the content of the fine particles 28A in the inner surface portion 24 is 20% by weight (wt%) or more and 75% by weight or less, and preferably 40% by weight (wt%) or more and 75% by weight or less. Yes, more preferably 60 weight percent or more and 75 weight percent or less.
  • the content of the fine particles 28A is 65% by weight. It was
  • the thickness W2 of the inner surface portion 24 is formed to have a thickness within a predetermined range defined in relation to the size of the outer shape of the fine particles 28A. If the thickness W2 is too large, the bacterial reduction effect of the fine particles 28A on the side in contact with the main body 22 cannot be fully utilized. On the other hand, if the thickness W2 is too small, the fine particles 28A for exhibiting the bacterial reduction effect cannot be sufficiently filled. Therefore, the thickness W2 is defined in a predetermined range in relation to the size of the outer shape of the fine particles 28A.
  • the ratio B (W2 / ⁇ 1) of the thickness W2 to the diameter ⁇ 1 is referred to as “diameter ratio B”.
  • the relationship between the thickness W2 and the diameter ⁇ 1 is shown as a numerical range of the diameter ratio B.
  • the diameter ratio B is defined as a range in which the bacterial reduction effect of the fine particles 28A can be suitably utilized. For example, when the diameter ⁇ 1 becomes smaller, the specific surface area of each fine particle 28A becomes large, and the total surface area of the fine particle group as an aggregate of a large number of fine particles 28A becomes large, so that the surface area for copper ions to flow out becomes large. growing. Therefore, the smaller the diameter ⁇ 1, the smaller the diameter ratio B may be.
  • the diameter ratio B is 100 or more and 10000 or less, preferably 100 or more and 5000 or less, more preferably 100 or more and 1000 or less, and more preferably 100 or more and 500 or less.
  • the thickness W2 is defined in the diameter ratio B in the above numerical range. In the present embodiment, the diameter ⁇ 1 of the fine particles is 50 nanometers, the thickness W2 is 20 micrometers, and the diameter ratio B is 400.
  • FIG. 10 is a conceptual diagram showing a part B2 of the lower portion 24b of the inner surface portion 24 shown in FIG. 8 in an enlarged manner.
  • the lower portion 24b is configured by dispersing silver fine particles 28B in the resin.
  • the fine particles 28B are not exposed on the surface of the lower portion 24b and are covered with the resin 26.
  • silver shall include silver and silver oxide.
  • the diameter of the silver fine particles 28B is equal to the diameter ⁇ 1 of the copper fine particles 28A. That is, the particle group consisting of copper fine particles 28A in the upper portion 24a and the particle group consisting of silver fine particles 28B in the lower portion 28b have substantially the same particle size distribution.
  • the outer shape of the fine particles 28B is spherical.
  • the fine particles 28B for example, silver particles of "DOWA AG Nano powders” manufactured by DOWA Electronics Co., Ltd. (4-14-1 Sotokanda, Chiyoda-ku, Tokyo) can be used.
  • a mixed powder in which a predetermined amount of copper fine particles 28A or silver fine particles 28B is dispersed in the resin powder is prepared. , By injection molding, melting and molding the mixed powder.
  • the copper fine particles 28A have an effect of reducing bacteria even if they are not in direct contact with the cosmetic product 100.
  • This is described in Japanese Patent No. 4175486, for example, although the technical field is different from that of the present invention and the configuration is completely different.
  • FIG. 15 shows the experimental results of an experiment by Professor Sasai of Kitasato University.
  • the viable cell count initially present at about 100,000 cfu / 4 cm 2 after 120 minutes (miniute). Is gone.
  • "cfu” means "Colony forming unit”.
  • the resin 26 that comes into contact with the cosmetics 100, and the fine particles 28A do not come into contact with the cosmetics 100, so that they do not react with the components of the cosmetics 100. That is, by arranging the resin 26 between the copper fine particles 28A and the cosmetics 100, it is possible to reduce bacteria without denaturing the cosmetics 100.
  • the preservative that is normally added to the cosmetic product 100 can not be added. Alternatively, the amount of preservative added can be reduced.
  • the silver fine particles 28B Similar to the copper fine particles 28A, the silver fine particles 28B have an effect of reducing bacteria even if they are not in direct contact with the cosmetics 100.
  • the inventor of the present invention has found that the types of bacteria that can be effectively reduced differ depending on the type of metal. Specifically, we have found that the types of metals that can effectively reduce aerobic bacteria and the types of metals that can effectively reduce anaerobic bacteria are different. Then, the inventor of the present invention has come up with a technique (“selective dispersion”) in which the type of metal effective for reducing the type of bacteria is determined according to the type of bacteria, and the fine particles of the metal are dispersed in the sterilized portion. For copper and silver, copper can effectively reduce aerobic bacteria and silver can effectively reduce anaerobic bacteria.
  • the upper part of the container body 20 is easily in contact with air, so it is assumed that aerobic bacteria are mainly a problem.
  • aerobic bacteria are mainly a problem.
  • anaerobic bacteria are mainly a problem.
  • Aerobic bacteria are, for example, molds, Pseudomonas aeruginosa, normal bacteria, and Bacillus subtilis.
  • Anaerobic bacteria are, for example, Clostridium perfringens and Clostridium perfringens.
  • copper fine particles capable of effectively reducing aerobic bacteria are dispersed in the upper portion 24a, and silver capable of effectively reducing anaerobic bacteria is dispersed in the lower portion 24b. Fine particles are dispersed. This makes it possible to effectively reduce bacteria that may cause problems depending on the vertical position of the liquid container 1 in the container body 20.
  • the specific surface area is important for the metal fine particles dispersed in the resin. When the ease of handling in actual production is not taken into consideration, it is desirable that the smaller the particle size, the larger the specific surface area. Assuming that the effect of reducing bacteria at the reference particle size is the reference effect, when a particle having a small particle size is used, the reference effect can be achieved even if the total amount of particles is reduced.
  • the reference particle diameter is defined as the particle diameter D1, and the particle diameter smaller than that is defined as the particle diameter D2. It is assumed that the content of the metal particles having the particle diameter D1 per unit weight of the resin is the content G1 and the standard effect can be achieved. When metal particles having a particle diameter D2 are used, the reference effect can be achieved even if the content G2 per unit weight of the resin is smaller than the content G1.
  • the inner surface portion 24X is composed of an upper portion 24ax and a lower portion 24bx. Both the upper portion 24ax and the lower portion 24bx are configured by dispersing a plurality of types of metals in a resin. The upper portion 24ax and the lower portion 24bx differ in the content of fine particles of each metal with respect to the content of all metals.
  • the plurality of types of metals are copper and silver in this embodiment.
  • the upper portion 24ax and the lower portion 24bx both contain copper fine particles and silver fine particles, but the ratio of the copper fine particle content to the content of all metal fine particles Xcu and the content of all metal fine particles.
  • the percentage of the content of silver fine particles Xag is different.
  • the particle size distribution of the copper fine particles and the particle size distribution of the silver fine particles are substantially the same as in the first embodiment. Therefore, as the content, the weight of the fine particles of copper and the weight of the fine particles of silver are used, respectively, per unit weight of the resin.
  • the content of the copper fine particles 28A is higher than the content of the silver fine particles 28B. That is, in the upper portion 24ax, the content of the copper fine particles 28A is relatively large in the fine particles of a plurality of types of metals.
  • the content of the silver fine particles 28B is higher than the content of the copper fine particles 28A. That is, in the lower portion 24bx, the content of the silver fine particles 28B is relatively large in the fine particles of a plurality of types of metals.
  • the proportion Xcu in the upper 24ax is greater than the proportion Xcu in the lower 24bx.
  • the proportion Xag in the lower portion 24bx is larger than the proportion Xag in the upper portion 24ax.
  • the magnitude of the content is expressed by the magnitude of the number of the fine particles 28A and 28B. This also applies to other figures.
  • a mixed powder in which a predetermined amount of copper fine particles 28A and silver fine particles 28B are dispersed in a resin powder is prepared, and the mixed powder is melted and molded by injection molding. It is carried out by molding.
  • the type of bacteria that is supposed to be a problem at a specific position on the inner surface 24X is not limited to one type.
  • the inventor of the present invention has a plurality of types of bacteria that are assumed to be a problem at a specific position of the inner surface portion 24X, and further, a specific type of bacteria that is relatively abundant depending on the specific position is present. Found different.
  • load distribution a technique of mixing fine metal particles to effectively reduce each type of bacteria, which is expected to cause a problem at a specific position, and dispersing them in a sterilized part. I came up with.
  • aerobic bacteria and anaerobic bacteria can be a problem in both the upper portion 24ax and the lower portion 24bx, but it is assumed that a relatively large number of aerobic bacteria may be present in the upper portion 24ax. It is assumed that a relatively large amount of anaerobic bacteria may be present in the lower portion 24bx. Since the content of the copper fine particles in the upper portion 24ax is larger than the content of the silver fine particles, and the content of the silver fine particles in the lower portion 24bx is larger than the content of the copper fine particles, the inner surface portion 24X Each bacterium can be effectively reduced in response to a plurality of types of bacterium that are expected to be problematic at a particular location.
  • the inner peripheral portion 24ay contains metal fine particles having a property of effectively reducing aerobic bacteria and metal fine particles having a property of effectively reducing anaerobic bacteria.
  • the upper part of the inner peripheral portion 24ay contains a large amount of metal fine particles having a property of effectively reducing aerobic bacteria, and the aerobic bacteria are effectively reduced from the upper side to the lower side. It is configured to reduce the content of fine particles of metal having properties.
  • the inner peripheral portion 24ay is configured so that the content of metal fine particles having a property of effectively reducing anaerobic bacteria increases from the upper side to the lower side.
  • the specific gravity is used.
  • the specific gravity of copper is smaller than the specific gravity of silver.
  • the bottom 24by is configured by dispersing only silver fine particles 28B in a resin. This is because it is assumed that anaerobic bacteria are mainly a problem in the bottom 24by.
  • bacteria can be effectively reduced at each position according to the ratio of aerobic bacteria and anaerobic bacteria which are assumed to be a problem.
  • the inner peripheral portion 24az constituting the inner surface portion 24Z is configured by dispersing metal fine particles 28A and 28B in the resin 26.
  • the inner peripheral portion 24az will be described with reference to FIG. 23.
  • One surface 24zR of the inner peripheral portion 24az is in contact with the liquid.
  • the metal fine particles 28A and 28B are contained in a larger amount at the position on the surface 24zR side than at the position on the opposite surface 24zL side.
  • the metal fine particles are contained in a larger amount at the position on the side of the surface in contact with the liquid with respect to the position on the side opposite to the surface in contact with the liquid, which is effective. Bacteria can be reduced.
  • a technique for distributing more metal fine particles on one surface of the inner surface portion 24Z is, for example, to prepare a mixed powder in which a predetermined amount of copper fine particles 28A and silver fine particles 28B are dispersed in a resin powder, and in an electric field or a magnetic field. Inside, it is carried out by melting and molding the mixed powder by injection molding. Alternatively, it may be carried out by appropriately adjusting the composition of the mixed powder.
  • the formulation of the mixed powder includes, but is not limited to, the formulation of additives and lubricants.
  • the inner surface portion 24Z may be configured to contain fine particles of one kind of metal.
  • the inner surface portion 24Z may be configured to contain only one of the copper fine particles 28A and the silver fine particles 28B.
  • the side surface of the inner surface portion 24A of the container body 20A of the fifth embodiment is formed as an uneven surface having a plurality of convex portions and concave portions.
  • the area of the inner surface portion 24A in contact with the cosmetics 100 can be increased as compared with the case where the inner surface portion 24A has a curved surface having no unevenness.
  • any aspect of the first embodiment to the fourth embodiment is applied.
  • the thickness W2 of the inner surface portion 24A is the same as that of the first embodiment. That is, the inner surface of the main body 22A is also formed as an uneven surface, and the inner surface 24A is integrally formed with the inner surface of the main body 22A.
  • both the side surface and the bottom surface of the inner surface portion 24A may be formed as an uneven surface having a plurality of convex portions and concave portions, and only the bottom surface is formed as such an uneven surface. You may.
  • the inner surface portion 24B of the container body 20B of the liquid container of the sixth embodiment is arranged only on the side surface. That is, the main body 22 has a side surface and a bottom surface, and the sterility layer is arranged only on the side surface. In addition, unlike the container body 20B of FIG. 25, if the container body has an elongated shape with a small bottom surface, bacteria can be effectively reduced by arranging the inner surface portion 24B only on the side surface. As the dispersion mode of the metal fine particles on the inner surface portion 24B, any aspect of the first embodiment to the fourth embodiment is applied.
  • the inner surface portion 24C of the container body 20C of the liquid container of the seventh embodiment is arranged only on the bottom surface. That is, the main body 22 has a side surface and a bottom surface, and the sterilization layer is arranged only on the bottom surface. Unlike the container body 20C of FIG. 26, if the container body has a smaller depth and a flatter shape, bacteria can be effectively reduced by arranging the inner surface portion 24C only on the bottom surface. ..
  • the inner surface portion 24C is configured by dispersing metal fine particles suitable for reducing anaerobic bacteria in the resin.
  • the metal fine particles are, for example, silver fine particles. As in the fourth embodiment, it is desirable that the silver fine particles are dispersed in a large amount closer to the surface in contact with the cosmetics 100.
  • the inner lid 32 is connected to the lid body 10D via a string-shaped member 30.
  • the string-shaped member 30 is an example of a connecting member.
  • the string-shaped member 30 is, for example, a string made of polyester.
  • the connecting member is not limited to the string-shaped member, and for example, a spring may be adopted.
  • the inner lid 32 is configured by integrally forming an inner lid main body portion 32a constituting the upper portion and an inner lid lower portion 32b constituting the lower portion.
  • the thickness W3 of the inner lid main body portion 32a is larger than the thickness W2 of the inner lid lower portion 32b.
  • the inner lid main body portion 32a functions as a structural member of the inner lid 32, and also functions as a member having a weight for pressing the inner lid 32 against the cosmetics 100.
  • the thickness W3 of the inner lid main body 32a is, for example, 5 mm.
  • the thickness W2 of the inner lid lower portion 32b is, for example, 20 micrometers.
  • copper fine particles 28A are dispersed in the resin, and the copper fine particles 28A are covered with the resin 26 (see FIG. 9) and are not exposed on the surface, so that the copper fine particles 28A are not exposed. It is configured as a sterilized part that reduces bacteria by the action of. That is, in addition to the inner surface portion 24 in the first embodiment, there is an inner lid lower portion 32b as a second sterilization portion.
  • the thickness W2 of the inner lid lower portion 32b is defined within a predetermined range defined in relation to the external size of the copper fine particles 28A.
  • the method for defining the predetermined range is the same as the method for defining the thickness W2 of the inner surface portion 24 of the first embodiment.
  • the length of the string-shaped member 30 is defined as the length at which the inner lid 32 can come into contact with the bottom surface of the container body 20D.
  • FIG. 28 shows a state in which an amount of cosmetics 100 close to the storage limit of the container body 20D is stored.
  • the inner lid 32 comes into contact with the upper surface of the cosmetic 100.
  • the lower inner lid 32b is pressed against the upper surface of the cosmetic 100 by the weight of the inner lid main body 32a.
  • the inner lower portion 32b is in close contact with the upper surface of the cosmetic product 100, and bacteria can be effectively reduced. Aerobic bacteria can grow on the upper surface of cosmetics 100. Therefore, the inner lid lower portion 32b is configured by dispersing metal fine particles suitable for reducing aerobic bacteria in the resin.
  • the inner surface 24D applies the configuration of any one of the first to fourth embodiments.
  • FIG. 29 shows a state in which the cosmetics 100 stored in the container body 20D are consumed and decreased. Since the inner lid 32 is connected to the lid 10D via the string-shaped member 30, even if the number of cosmetics 100 in the container body 20D is reduced, when the lid 10D engages with the container body 20D, the inner lid 32 Touches the upper surface of the cosmetic 100. As described above, regardless of the remaining amount of the cosmetic product 100, the inner lid lower portion 32b adheres to the upper surface of the cosmetic product 100 and can effectively reduce bacteria.
  • the inner lid 32 when the compression coil spring is adopted as the connecting member, the inner lid 32 can be positively pressed against the upper surface of the cosmetic product 100 by the restoring force of the spring, so that the adhesion is increased. be able to.
  • the lower surface (the surface in contact with the cosmetics 100) of the inner lid lower portion 32b is configured as an uneven surface having a plurality of concave portions and convex portions, and the area in contact with the cosmetics 100 is increased. You may.
  • the container body 20D may be configured not to have a sterilized portion, and only the inner lid lower portion 32b of the inner lid 32 may be configured as a sterilized portion.
  • the lower inner lid 32b is configured to contain a plurality of types of metal fine particles, and the content of the metal fine particles that suitably reduces aerobic bacteria is suitably reduced for anaerobic bacteria. It may be configured to be larger than the content of fine particles.
  • a tubular member 40 is connected to the lid body 10E.
  • the tubular member 40 is a member having a hollow structure.
  • the tubular member 40 is composed of an upper portion 40u which is an upper portion and a lower portion 40d which is a lower portion.
  • FIG. 31 is a schematic cross-sectional view of the peripheral wall portion B3 of the upper portion 40u of the tubular member 40 shown in FIG.
  • the peripheral wall of the upper portion 40u is composed of a central portion 40a and a surface layer portion 40ba.
  • the central portion 40a functions as a structural member of the tubular member 40, and its thickness W4 is a thickness having the strength necessary for maintaining the shape of the tubular member 40, for example, at 2 mm (mm). be.
  • the surface layer portion 40ba is configured as a sterilization portion in which copper fine particles 28A are dispersed in the resin, and the copper fine particles 28A are covered with the resin 26 and are not exposed on the surface, and bacteria are reduced by the action of the copper fine particles 28A. Has been done.
  • the thickness W2 of the surface layer portion 40ba is defined within a predetermined range defined in relation to the size of the copper fine particles 28A.
  • the method for defining the predetermined range is the same as the method for defining the thickness W2 of the inner surface portion 24 of the first embodiment.
  • FIG. 32 is a schematic cross-sectional view of the peripheral wall portion B4 of the lower portion 40d of the tubular member 40 shown in FIG.
  • the lower portion 40d is different from the configuration of the upper portion 40u in the following points, and is the same in other points. That is, the surface layer portion 40bb of the lower portion 40d is formed so as to cover the side surface and the bottom surface of the central portion 40a. Further, the surface layer portion 40bb is configured as a sterilization portion in which silver fine particles 28B are dispersed in the resin and bacteria are reduced by the action of the silver fine particles 28B.
  • the upper portion 40u is suitable for reducing aerobic bacteria
  • the lower portion 40d is suitable for reducing anaerobic bacteria. That is, in addition to the inner surface portion 24 in the first embodiment, there is a tubular member 40 as a second sterilization portion.
  • the length of the tubular member 40 is defined as the length in contact with the bottom surface of the container body 20E.
  • FIG. 33 shows a state in which an amount of cosmetics 100 close to the storage limit of the container body 20E is stored.
  • the tubular member 40 passes through the cosmetic 100 and comes into contact with the bottom surface of the container body 20E.
  • both the inner surface and the outer surface of the tubular member 40 are in contact with the cosmetics 100. This makes it possible to effectively reduce bacteria.
  • FIG. 34 shows a state in which the cosmetics 100 stored in the container body 20E are consumed and decreased. Since the tubular member 40 is in contact with the bottom surface of the container body 20E, even if the cosmetics 100 in the container body 20E is reduced, when the lid 10E engages with the container body 20E, the tubular member 40 is in contact with the cosmetics 100. As described above, regardless of the remaining amount of the cosmetic product 100, the tubular member 40 can come into contact with the cosmetic product 100 and effectively reduce bacteria.
  • the configuration of the surface layer portion 40ba and / or 40bb of the tubular member 40 may use any of the second to fourth embodiments.
  • two rod-shaped members 50 are connected to the ceiling surface 10d of the lid body 10F.
  • the number of rod-shaped members 50 may be one or more.
  • FIG. 36 is a schematic cross-sectional view of a portion B5 of the rod-shaped member 50 shown in FIG. 35.
  • the rod-shaped member 50 is composed of a central portion 50a and a surface layer portion 50b.
  • metal fine particles suitable for reducing bacteria are dispersed in the resin, and the metal fine particles are covered with the resin 26 and are not exposed on the surface, and the action of the metal fine particles It is configured as a sterilized part to reduce bacteria. That is, in addition to the inner surface portion 24 in the first embodiment, there is a rod-shaped member 50 as a second sterilized portion.
  • the thickness W2 of the surface layer portion 50b is defined within a predetermined range defined in relation to the size of the outer shape of the copper fine particles 28A.
  • the method for defining the predetermined range is the same as the method for defining the thickness W2 of the inner surface portion 24 of the first embodiment.
  • the thickness (diameter) W5 of the central portion 50a is configured to be larger than the thickness W1 of the first embodiment, and secures sufficient strength to withstand the drag force when the cosmetic 100 is agitated by the rod-shaped member 50.
  • the diameter W5 is, for example, 5 millimeters.
  • the length of the rod-shaped member 50 is defined as a length that does not touch the bottom surface of the container body 20F when the lid 10F engages with the container body 20F, but the lowermost portion thereof is located near the bottom surface. ..
  • the rod-shaped member 50 is connected to a position deviated from the center of the lid 10F.
  • the lid 10F is rotated for attachment / detachment to / from the container body 20F, it rotates in a circular motion as shown by arrows A1 in FIGS. 35 and 37.
  • the cosmetics 100 stored in the container body 20F are configured to be agitated.
  • FIG. 38 shows a state in which an amount of cosmetics 100 close to the storage limit of the container body 20F is stored.
  • the rod-shaped member 50 when the lid 10F is removed from the container body 20F from the state shown in FIG. 38, the rod-shaped member 50 also rotates with the rotation of the lid 10F to stir the cosmetics 100. As a result, the rod-shaped member 50 can come into contact with many parts of the cosmetic product 100 and more effectively reduce bacteria.
  • any one of the first embodiment 1 to the fourth embodiment is used.
  • an inner lid 34 is arranged on the container body 20G.
  • the inner lid 34 is an example of the inner lid on the main body side.
  • the inner lid 34 is configured by integrally forming an inner lid main body portion 34a constituting the upper portion and an inner lid lower portion 34b constituting the lower portion.
  • the inner lid main body portion 34a is an example of the main body side inner lid main body portion
  • the inner lid lower portion 34b is an example of the main body side inner lid lower portion.
  • the inner lid main body portion 34a is composed of a side wall portion 34a1 and a recessed bottom surface portion 34a2.
  • the inner lid 34 is formed with through holes 34s that penetrate in the vertical direction.
  • the lower part of the inner lid 34b is configured as a sterilized part.
  • the lower inner lid 34b is configured by, for example, copper fine particles 28A dispersed in a resin as metal fine particles suitable for reducing aerobic bacteria.
  • the thickness W2 of the inner lid lower portion 34b is defined within a predetermined range defined in relation to the size of the copper fine particles 28A.
  • the method for defining the predetermined range is the same as the method for defining the thickness W2 of the inner surface portion 24 of the first embodiment.
  • the outer diameter W8 of the inner lid 34 (see FIG. 41) is equal to the inner diameter W7 of the container body 20G, or is larger by a predetermined minimum ratio with respect to the inner diameter W7.
  • FIG. 41 is a schematic bottom view of the inner lid 34 of FIG. 40 as viewed from the direction of arrow Z2.
  • the minimum ratio is, for example, 0.5% to 1.0%.
  • the inner lid 34 is arranged so as to be slidable in the vertical direction with respect to the container body 20G.
  • the inner lid lower portion 34b may be configured to contain both copper fine particles 28A and silver fine particles 28B.
  • the content of the copper fine particles 28A is higher than the content of the silver fine particles 28B.
  • the lower inner lid 34b can effectively reduce aerobic bacteria while also reducing anaerobic bacteria.
  • the inner surface portion 24H of the container body 20H of the liquid container of the first reference embodiment is formed by covering the copper thin plate member 26H with the resin layer 28H formed of resin. Further, the thin plate member 26H is arranged only on the side surface.
  • the inner surface portion 24J of the container body 20J of the liquid container of the second reference embodiment is formed by covering the copper thin plate member 26J with the resin layer 28J formed of resin. Further, the thin plate member 26H is arranged only on the bottom surface.
  • liquid container of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention.
  • each of the above embodiments can be appropriately combined as long as there is no technical contradiction.

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  • Engineering & Computer Science (AREA)
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  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Ceramic Engineering (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention concerne un récipient pour liquide, etc., dans lequel il est possible de réduire la quantité de bactéries dans un liquide. Un corps de récipient (20) de ce récipient pour liquide est configuré à partir : d'un corps principal (22) qui constitue la structure de base du corps de récipient (20) ; et d'une partie de surface intérieure (24) qui constitue la surface intérieure du corps de récipient (20). La partie de surface intérieure (24) est configurée en tant que partie de stérilisation dans laquelle des particules fines métalliques qui ont un effet réducteur de bactéries sont dispersées dans une résine, et qui réduit la quantité de bactéries par l'action des particules fines. Les particules fines sont configurées de manière à ne pas être exposées à partir de la surface de la partie de surface intérieure (24). Les types de métal qui constituent la partie de stérilisation sont prescrits en fonction des types de bactéries qui sont censées provoquer des problèmes au niveau de positions sur la partie de surface intérieure (24).
PCT/JP2020/030900 2020-08-14 2020-08-14 Récipient pour liquide, couvercle intérieur, élément cylindrique, élément en forme de tige et couvercle intérieur côté corps WO2022034689A1 (fr)

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KR1020207031621A KR102205319B1 (ko) 2020-08-14 2020-08-14 액체 용기, 안쪽 뚜껑, 통상 부재, 봉상 부재 및 본체측 안쪽 뚜껑
PCT/JP2020/030900 WO2022034689A1 (fr) 2020-08-14 2020-08-14 Récipient pour liquide, couvercle intérieur, élément cylindrique, élément en forme de tige et couvercle intérieur côté corps
JP2020560848A JP6882815B1 (ja) 2020-08-14 2020-08-14 液体容器、内蓋、筒状部材、棒状部材及び本体側内蓋

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