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WO2020009036A1 - Récipient de conservation de fraîcheur, élément constitutif de récipient de conservation de fraîcheur et procédé de fabrication d'un tel récipient - Google Patents

Récipient de conservation de fraîcheur, élément constitutif de récipient de conservation de fraîcheur et procédé de fabrication d'un tel récipient Download PDF

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Publication number
WO2020009036A1
WO2020009036A1 PCT/JP2019/025914 JP2019025914W WO2020009036A1 WO 2020009036 A1 WO2020009036 A1 WO 2020009036A1 JP 2019025914 W JP2019025914 W JP 2019025914W WO 2020009036 A1 WO2020009036 A1 WO 2020009036A1
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Prior art keywords
container
film
freshness holding
holding container
ventilation
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Ceased
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PCT/JP2019/025914
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English (en)
Japanese (ja)
Inventor
渡辺　徹
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W and Co
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W and Co
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    • 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
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators

Definitions

  • the present invention relates to a freshness holding container, a member for forming a freshness holding container, a method for producing the same, and the like. More specifically, a freshness holding that can suppress a decrease in freshness of foods and fresh flowers that generate carbon dioxide during storage by respiration or fermentation.
  • the present invention relates to a container, a member for forming a freshness holding container, a method for manufacturing the same, and the like.
  • Packaging materials that can store food that generates carbon dioxide by respiration or fermentation, such as vegetables, fruits, fresh flowers, coffee beans, processed foods, etc., while maintaining freshness, or fresh flowers can be stored for a long time
  • the need for packaging materials is increasing.
  • a packaging material for storing the above foods or the like for a long period of time is required to have two contradictory functions of discharging carbon dioxide and water vapor generated inside and preventing inflow of oxygen from outside. If the discharge of carbon dioxide or water vapor is insufficient, the internal pressure will rise and the packaging material may be damaged, and if the inflow of oxygen is not prevented, the freshness of the contents will decrease due to oxidation.
  • a package of fruits and vegetables is provided with a non-joined portion arranged in a stripe shape on the heat-sealed portion of the package (bag), and the non-joined portion is used as a flow path communicating with the outside of the package.
  • a product has been proposed (Patent Document 1).
  • the non-joined portion (flow path) has a linear (ie, elongated rectangular) planar shape having a width of 0.1 to 5 mm and a length of 1 to 20 mm.
  • the flow path maintains the inside of the container at a low oxygen concentration and a high carbon dioxide concentration, thereby maintaining the freshness of the fruits and vegetables inside.
  • the freshness of the contents can be maintained for a certain period of time.However, since the flow path is relatively short, a large amount of oxygen flows in from the outside, and the freshness of the fruits and vegetables can be maintained for a long period of time. was difficult.
  • the present invention has been made in view of such a point, the inflow of oxygen from the outside is very small, a freshness holding container capable of maintaining the freshness of the contents for a long time, a member for forming a freshness holding container, and It is an object of the present invention to provide a manufacturing method thereof.
  • a freshness holding container having a ventilation part includes a band-shaped joining region having a width of 5 mm or more and 15 mm or less, where two ends of the film are overlapped and joined,
  • the bonding region is constituted by a band-shaped ultrasonic bonding portion in which two ends of the film are bonded to each other,
  • a non-joining portion where the ends of the superposed films are not joined to each other in the ultrasonic joining portion is arranged,
  • the non-joining portion constitutes a non-linear air passage communicating the internal space of the container and the outside of the container,
  • the air passage has a width W of 0.2 mm ⁇ W ⁇ 3 mm and a length L of 20 mm ⁇ L ⁇ 50 mm.
  • a freshness preserving container is provided.
  • the ventilation path has a width W of 0.2 mm ⁇ W ⁇ 3 mm and a length L of 20 mm ⁇ L ⁇ 50 mm. Carbon and water vapor can be quickly discharged to the outside through the ventilation path. In addition, since the ventilation path is non-linear, a decrease in the strength of the joint region due to the ventilation path formed by the non-joined portions is suppressed.
  • the film has an oxygen barrier layer.
  • the film has a thickness of 20 ⁇ m or more and 100 ⁇ m or less.
  • the container has a container body and a lid attached to the container body, A vent is provided in at least one of the container body and the lid.
  • the lid is detachable from the container body.
  • a freshness holding container forming member for forming a freshness holding container It has a ventilation part,
  • the ventilation portion includes a band-shaped joining region having a width of 5 mm or more and 15 mm or less, where two ends of the film are overlapped and joined,
  • the bonding region is constituted by a band-shaped ultrasonic bonding portion in which two ends of the film are bonded to each other, and non-bonding in which the ends of the superimposed film are not bonded to the ultrasonic bonding portion.
  • the non-joining portion constitutes a non-linear air passage communicating the internal space of the container and the outside of the container,
  • the air passage has a width W of 0.2 mm ⁇ W ⁇ 3 mm and a length L of 20 mm ⁇ L ⁇ 50 mm.
  • a member for constituting a freshness holding container is provided.
  • the member for forming a freshness holding container has a ventilation portion provided with a ventilation path, the intrusion of oxygen through the ventilation path is suppressed by attaching such a member for forming a freshness holding container to the opening of the container.
  • a freshness holding container capable of rapidly discharging carbon dioxide and water vapor generated inside the container to the outside through the ventilation path.
  • a member for constituting a freshness holding container is detachably attached to the container.
  • a freshness holding container forming member formed of a plurality of films and having a ventilation portion, wherein the ventilation portion has a width of 5 mm or more and 15 mm or less, in which two ends of the film are overlapped and joined.
  • the joining region is constituted by a band-like ultrasonic joining portion in which two ends of the film are joined to each other, and the ends of the superimposed film are joined to the ultrasonic joining portion.
  • the non-joined part is arranged, and the non-joined part constitutes a non-linear air passage communicating the internal space of the container and the outside of the container, and the air passage has a width W of 0.2 mm.
  • the length L is a method for manufacturing a member for forming a freshness holding container, wherein 20 mm ⁇ L ⁇ 50 mm, Forming the ultrasonic bonding part by ultrasonic welding, A method for producing a member for forming a freshness holding container is provided.
  • the step of forming the ultrasonic bonding part is a step of continuously forming an ultrasonic bonding part in the film while rotating a disk-shaped ultrasonic welding horn with respect to the film.
  • a freshness holding container a member for constituting a freshness holding container, and a method for producing the same, which can keep the freshness of the contents for a long period of time with very little inflow of oxygen from outside the container.
  • FIG. 2 is a sectional view taken along the line II-II of FIG. 1. It is a schematic plan view of the ventilation part of the lid part of the container of FIG.
  • FIG. 4 is a schematic sectional view taken along the line IV-IV in FIG. 3.
  • FIG. 5 is a schematic cross-sectional view along the line VV in FIG. 3. It is a schematic diagram which shows the modification of a non-joining part (airway). It is a schematic diagram which shows the modification of a non-joining part (airway). It is a schematic diagram which shows the modification of a non-joining part (airway). It is a schematic diagram which shows the modification of a non-joining part (airway).
  • FIG. 3 is a schematic plan view of a ventilation member (a member for configuring a freshness holding container). It is a schematic diagram explaining attachment of a ventilation member (member for freshness holding container construction) to a container. It is a schematic diagram for explaining the Example of this invention. It is a schematic diagram for explaining the Example of this invention.
  • FIG. 1 is a schematic plan view of a container 100 according to a preferred embodiment of the present invention.
  • FIG. 2 is a sectional view taken along the line II-II in FIG. In the present application, the ratio of dimensions of each element is not accurately illustrated in the drawings for clarity.
  • the container 100 is, for example, a cylindrical container for storing foods such as coffee, miso, and kimchi, and has a box-shaped main body (container main body) 102 having an open upper end and an open end of the main body 102 sealed. And a cover portion 104 that covers in a state.
  • the lid 104 is formed of a film-like member, is adhered and fixed to the main body 102 along the opening end of the main body 102 with an adhesive or the like, and is configured so that the inside of the container can be maintained in a sealed state.
  • the main body 102 of the present embodiment is a box-shaped main body with an open upper end, but may have another shape, for example, a cylindrical shape with a bottom, as long as the upper end is open. There is no limitation on the size.
  • the material constituting the main body 102 of the present embodiment is not particularly limited as long as it has a property of not allowing gas to permeate.
  • the material constituting the main body 102 of the container 100 of the present embodiment may be transparent or opaque, and may have a printed surface to enhance the design.
  • a material constituting the main body 102 of the container 100 of the present embodiment for example, a polymer such as polyethylene, polypropylene, polystyrene, or polyester, glass, metal, or the like is used.
  • the thickness of the main body 102 of the container 100 of the present embodiment is not limited, but is preferably, for example, about 0.3 mm to 3 mm.
  • the lid 104 is constituted by the film 106, specifically, two films 106a and 106b. As shown in FIGS. 1 and 2, each of the films 106a and 106b has an area of about two-thirds of the area of the opening end of the main body 102, and one end side is overlapped. By being joined, a large number of lids 104 are formed to cover the entire open end of the main body 102.
  • the lid may be formed of three or more films.
  • a band-shaped ultrasonic bonding is performed in a bonding region where one end portions of two films 106 a and 106 b are overlapped and bonded. It is constituted by a unit 108.
  • the film 106 used in the container 100 of the present embodiment is preferably an amorphous polymer film.
  • Specific examples include films of polystyrene, acrylic resin, vinyl chloride, polycarbonate, styrene acrylonitrile copolymer, and the like.
  • the film 106 may be a laminated film in which a plurality of films made of different materials are laminated.
  • the laminated film include a laminated film in which a polystyrene film is laminated inside a polyester, polyethylene or polypropylene film.
  • a film obtained by laminating an oxygen barrier film and another film can also be used as the film 106.
  • the oxygen barrier film known films such as a film made of a polymer containing vinyl alcohol or vinylidene chloride as a constituent, a polymer film on which any one of silica, alumina, and aluminum is deposited, and a metal foil layer can be used.
  • a laminated film in which polystyrene is laminated inside the oxygen barrier film can be used as the films 106a and 106b.
  • the film 106 may be transparent or opaque. When the contents deteriorate due to sunlight, it is preferable to use an opaque packaging film. Further, a film whose surface is printed in order to enhance the design property may be used.
  • the thickness of the film 106 is preferably 10 ⁇ m or more and 300 ⁇ m or less, more preferably 15 ⁇ m or more and 200 ⁇ m or less, and further preferably 20 ⁇ m or more and 100 ⁇ m or less. If the thickness of the film is less than 10 ⁇ m, the strength of the container may be insufficient, and if it exceeds 300 ⁇ m, the cost may be disadvantageous.
  • the width X of the band-shaped ultrasonic bonding portion 108 in which one end portions of the two films 106a and 106b are overlapped and bonded is set to 5 mm or more and 15 mm or less.
  • the width of the ultrasonic bonding portion 108 is more preferably 6 mm or more and 13 mm or less, and further preferably 8 mm or more and 11 mm or less.
  • Preserving the contents can be ensured by setting the width of the ultrasonic bonding portion 108 to 5 mm or more, and ensuring the strength of the ultrasonic bonding portion by setting the width to 15 mm or less.
  • a plurality of portions (non-joined portions) where the one end portions of the two films 106a and 106b are not joined to each other are formed at predetermined intervals in the belt-shaped ultrasonic joining portion 108, This non-joined part constitutes the ventilation path 110.
  • the joining area where the plurality of ventilation paths 110 are arranged in the belt-like ultrasonic joining section 108 constitutes the ventilation section.
  • FIG. 3 is a schematic plan view of a ventilation portion (joining region) of the lid portion 104
  • FIG. 4 is a schematic cross-sectional view taken along line IV-IV of FIG. 3
  • FIG. 5 is a schematic sectional view taken along line VV of FIG.
  • the ventilation passage 110 has a non-linear (specifically, substantially S-shaped) flat ventilation having a constant width and a cross-sectional shape. It is a road.
  • the non-joining portion (air passage) 110 extends from one end of the ultrasonic joining portion 108 to the other end, traversing the band-shaped ultrasonic joining portion 108 having a width X, and the lid portion 104 is connected to the opening of the main body 102 of the container 100. When the end is sealed, it is configured to be a flow path for fluid communication between the internal space of the container 100 and the outside of the container 100 (FIG. 5).
  • the width W of the non-joined portion (air passage) 110 is set to 0.2 mm or more and 3 mm or less.
  • the width W of the ventilation path 110 is more preferably 0.3 mm or more and 2.5 mm or less, and more preferably 0.5 mm or more and 2.0 mm or less.
  • the width W of the ventilation path 110 By setting the width W of the ventilation path 110 to 0.2 mm or more and 3.0 mm or less, it is possible to simultaneously release carbon dioxide and water vapor generated inside the container 100 and prevent oxygen from entering the outside of the container 100. become. Further, when the container 100 is moved, it is difficult for the gas to flow inside the ventilation path 110, and it is difficult for oxygen to enter from the outside.
  • the length L of the ventilation path 110 is set to 20 mm or more and 50 mm or less. Note that the length L of the ventilation path 110 refers to the length from one end to the other end of the ventilation path 110 along the central axis of the ventilation path 110.
  • the length L of the ventilation path 110 is more preferably 22 mm or more and 45 mm or less, and further preferably 25 mm or more and 40 mm or less.
  • the length L of the ventilation path 110 to 20 mm or more and 50 mm or less, release of carbon dioxide and water vapor generated inside the container 100 and prevention of intrusion of oxygen from the outside of the container 100. And are compatible.
  • the ratio L / W of the length L and the width W of the ventilation path 110 is set to 10 or more and 200 or less. If the ratio L / W of the length L to the width W is less than 10, the storage stability of the contents is remarkably deteriorated, and if the ratio exceeds 200, moisture is condensed in the air passage and carbon dioxide This is because the discharge may be insufficient.
  • the ratio L / W of the length L to the width W of the ventilation path 110 is more preferably 15 or more and 150 or less, and further preferably 20 or more and 100 or less.
  • the interval between the ventilation paths 110 is set to 1 mm or more and 100 mm or less.
  • the interval between the ventilation paths 110 is set to 1 mm, an accurate shape of the ventilation path 110 can be secured.
  • the thickness is set to 30 mm or less, a required number of ventilation paths 110 can be provided.
  • the distance between the ventilation paths 110 is more preferably 2 mm or more and 50 mm or less, and still more preferably 3 mm or more and 15 mm or less.
  • the number of air passages 110 formed in the container 100 is set to one or more, but is preferably 3 or more and 100 or less, more preferably 5 or more and 75 or less.
  • the number of ventilation paths is set to 3 or more and 100 or less, more preferably 5 or more and 75 or less, so that the ventilation paths 110 It is possible to prevent carbon dioxide from being clogged by water and insufficient discharge of carbon dioxide, which is preferable.
  • FIGS. 6 to 10 are schematic drawings showing modified examples of the shape of the non-linear air passage 110.
  • the shape of the air passage is not limited to the substantially S-shape of the above embodiment.
  • a "V" shaped ventilation path 110-6 as shown in FIG. 6 a substantially “Z” shaped ventilation path 110-7 as shown in FIG. 7, and an inverted “W” shape as shown in FIG.
  • a plurality of linear portions or curved portions are connected like a ventilating passage 110-8, an arcuate venting passage 110-9 as shown in FIG. 9, and a wavy venting passage 110-10 as shown in FIG. It may be constituted by the above.
  • the ventilation path of the present invention is not limited to the above specific examples, and may be another polygonal line, a curved line, or another non-linear ventilation path combining these.
  • the side end portions of the two films 106a and 106b are partially joined by an ultrasonic welding method to form a film member to be the lid 104.
  • Heating is preferably performed by a method such as a heating roll or infrared heating.
  • the heated film is neutralized. Since the heated film has a reduced elastic modulus and is supple, it is easily charged due to an increase in the contact area when the film contacts an object such as a transport roll. In order to eliminate this charge, it is preferable to remove the charge before the ultrasonic welding.
  • static elimination is performed using an ion wind, a static elimination brush or the like. It is preferable that static elimination is performed so that the surface potential of the film after static elimination becomes 1 kv or less.
  • the surface potential can be measured by, for example, a surface potential meter MODEL341B manufactured by Trek Japan.
  • the surface potential of the film after static elimination preferably has an absolute value of 1 kV or less from the viewpoint of preventing dust.
  • the surface potential can be measured by, for example, a surface potential meter MODEL341B manufactured by Trek Japan.
  • the side ends of the superposed films 106a and 106b are joined by heat sealing or the like, and the side ends of the superposed films 106a and 106b are temporarily fixed so that their relative positions do not shift. By this temporary fastening, the relative positional deviation of the superposed films 106a and 106b is prevented.
  • a joining portion by the ultrasonic joining portion 108 is formed on the side end portions of the films 106a and 106b by an ultrasonic welding method.
  • FIG. 11 is a drawing schematically showing a configuration of a welding apparatus 200 used for the ultrasonic welding method.
  • the welding apparatus 200 includes an ultrasonic oscillator 202 for converting 50 Hz or 60 Hz commercial electricity into a high frequency signal of about 15 to 70 KHz, and a converter 204 for converting the signal into mechanical vibration.
  • the receiving seat 210 can control the temperature.
  • FIG. 12 is a schematic perspective view showing the appearance of the welding horn 208 of the welding device of FIG.
  • the welding device 200 of the present embodiment is a rotary welding device in which the horn 208 has a disk shape as shown in FIG.
  • the diameter of the disk-shaped horn 208 is about 5 to 30 cm, and the thickness is about 0.5 to 1.5 cm.
  • an S-shaped groove 208b corresponding to the substantially S-shape of the air passage 110 of the lid 104 is formed, and the non-joined portion (air passage 110) is formed by the groove 208b. Is formed.
  • the ultrasonic welding portion 8 is continuously formed on the films 106a and 106b. More specifically, the disc-shaped horn 208 is rotated with the laminated films 106a and 106b sandwiched between the horn 208 and the receiving seat 210, and the side ends of the long films 106a and 106b. Next, an ultrasonic welding portion (joining portion) 108 in which a plurality of non-joining portions (air passages 110) are disposed is formed in a belt shape.
  • the amplitude of the ultrasonic wave used in the welding operation is usually 1.5 ⁇ m or more and 100 ⁇ m or less, but from the viewpoint of accurately controlling the width W of the non-joined portion is 2 ⁇ m or more, 15 ⁇ m or less, more preferably 2.5 ⁇ m or more and 10 ⁇ m or less. It is preferred that there be.
  • Welding is performed by applying ultrasonic vibration to the superposed films 106a and 106b while pressing the tip of the horn 208 against the side edges of the superposed films 106a and 106b.
  • the welding time is usually 0.05 seconds or more and 1 second or less. If the time is less than 0.05 seconds, the strength of the bag may be insufficient, and if it exceeds 1 second, the production efficiency may be reduced.
  • the pressing pressure of the horn 208 is preferably about 100 to 500N. If the pressing pressure is less than 100 N, the strength of the welded portion may decrease, and if it exceeds 500 N, a problem may occur due to an excessive load applied to the device.
  • the outer peripheral portions of the horns are continuously in contact with the side end portions of the two superposed films 106a and 106b and ultrasonic welding is performed. And efficient processing can be performed.
  • the two films 106a and 106b having the air passage formed at the joined side end are appropriately cut, and the lid 104 is adhered and fixed to the opening end of the main body 102 with an adhesive or the like. It becomes.
  • the container 100 of the above embodiment is a container in which a ventilation portion is provided in a lid portion 104 bonded to an opening end of a main body 102 having an open upper end.
  • the present invention is illustrated in FIGS.
  • a configuration may be adopted in which a ventilation portion is provided on at least one of the main body and the lid portion of the container in which the lid portion is configured to be detachable from the main body.
  • FIG. 13 is a schematic perspective view of a container 300 according to another embodiment of the present invention
  • FIG. 14 is a schematic perspective view of a container 400 according to still another embodiment.
  • the container 300 for keeping freshness shown in FIG. 13 includes a bottomed cylindrical main body 302 having an open upper end, and a lid 304 detachably attached to the upper end of the main body 302 at the opening. .
  • the lid 304 is also made of a rigid material.
  • an opening 306 is formed in a side wall of the main body 302, and a ventilation member 308 formed of a film is attached to the opening 306 in a sealed state.
  • the ventilation member 308 is formed of two films or the like whose side ends are joined by ultrasonic fusion, and has a ventilation section in which a plurality of ventilation paths are arranged in a joint region (ultrasonic joint).
  • the ventilation member 308 has the same configuration as the lid 104 of the container 100 of the above-described embodiment, and has a ventilation path 310 formed by a non-joined portion of a film similar to the ventilation path 110 of the lid 104. It has. With such a configuration, carbon dioxide, water vapor, and the like generated in the container can be discharged to the outside of the container while suppressing intrusion of oxygen from the outside into the container 300.
  • the container 400 for maintaining freshness shown in FIG. 14 includes a bottomed cylindrical main body 402 having an open upper end, and a lid portion 404 detachably attached to the upper end of the main body 402. . Also in this container 400, it is preferable that the lid portion 404 is also made of a rigid material.
  • an opening 406 is formed in the lid 404, and a ventilation member 408 formed of a film is attached to the opening 406 in a sealed state.
  • the ventilation member 408 includes a ventilation section having a ventilation path 410 formed by a non-joined portion of a film similar to the ventilation path 110 of the lid 104.
  • the ventilation members 308 and 408 are also manufactured using the rotary welding device 200 by the same manufacturing method as the lid 104 of the container 100 of the above-described embodiment.
  • such containers 300, 400 and the like have a configuration in which, when the ventilation members 308, 408 are deteriorated by use, the deteriorated ventilation members can be replaced with another new ventilation member (member for forming a freshness holding container). can do.
  • Such a replaceable ventilation member (member for forming a freshness holding container) 500 has substantially the same configuration as the ventilation members 308 and 408, and is the same as the lid 104 of the container 100 of the above-described embodiment. Manufactured by the welding apparatus 200 and the like.
  • FIG. 15 is a schematic plan view of a ventilation member (member for forming a freshness holding container) 500
  • FIG. 16 is a schematic diagram for explaining attachment of the ventilation member (member for forming a freshness holding container) 500 to the container. is there.
  • the ventilation member (member for forming a freshness holding container) 500 includes two films 506a and 506b whose ends are ultrasonically bonded.
  • a ventilation path 510 similar to the ventilation paths 310 and 410 of the ventilation members 308 and 408 formed as a non-bonded portion is formed in a joint region between the two films.
  • an adhesive layer 502 is formed on the periphery of the back surface.
  • the ventilation member (member for forming a freshness holding container) 500 covers the opening 406 of the lid 404 detachable from the main body 402 of the container 400 by the adhesive layer 502. It is attached to the opening 406.
  • carbon dioxide, water vapor, and the like generated in the container can be discharged to the outside of the container through the ventilation path while suppressing the intrusion of oxygen from the outside into the container.
  • the material constituting the adhesive layer 502 is not particularly limited, but a known adhesive such as a rubber or acrylic material is preferable. Further, a release paper or a release film may be attached on the adhesive layer 502 as necessary.
  • Such a ventilation member (member for forming a freshness holding container) 500 is used by being attached to a container. When the performance deteriorates due to aging, it is replaced with a new ventilation member (member for forming a freshness holding container) 500.
  • An opening may be formed in a general closed container, and such a ventilation member (member for forming a freshness holding container) 500 may be attached to form a freshness holding container.
  • Example 1 The two films 106a 'and 106b' of the styrene acrylonitrile copolymer having a thickness of 20 ⁇ m were joined by an ultrasonic welding method using the apparatus of FIG. 11 to form an ultrasonic joint 108 ′ having a width of 10 mm (FIG. 17).
  • the oscillation frequency during joining was 20 KHz
  • the oscillation amplitude was 15 ⁇ m
  • the pressing pressure was 250 N
  • the joining time was 0.2 seconds.
  • the air passage is the air passage 110-7 shown in the polygonal air passage of FIG. 7, and the interval between the air passages is 10 mm.
  • the width of the ventilation path is 0.8 mm, the width L of the ventilation path is 24 mm, and the value of L / W is 30. When the air passage was visually observed, the width of the air passage was constant.
  • the film with the air passage was cut into a circle having a diameter of 15 cm as shown in FIG. This was used as the lid 104 '.
  • Example 2 An air passage was formed in the same manner as in Example 1.
  • the shape of the air passage is a curved shape shown in FIG. 3, and the interval between the air passages is 10 mm.
  • the width of the ventilation path is 0.8 mm
  • the width L of the ventilation path is 32 mm
  • the value of L / W is 40.
  • Visual observation of the air passage revealed that the width of the air passage was constant.
  • This film with a ventilation path was cut into a rectangle having a width of 4 cm and a length of 7 cm, and this was used as a ventilation section.
  • a nearly rectangular parallelepiped container with a lid made of 10 cm in length, 20 cm in width and 10 cm in height was prepared.
  • the lid is also made of polyethylene and can be attached and detached, and when the lid is closed, the inside can be sealed.
  • a rectangular hole having a width of 3 cm and a length of 6 cm was formed in the center of the lid, and a ventilation portion was adhered to the hole using an adhesive to form a container. After about 200 g of carrot was put in the container, it was sealed.
  • the container was stored for 2 weeks in an atmosphere of 15 ° C., but the carbon dioxide generated did not swell the lid. In addition, there was no change in the appearance of the carrot inside, and the carrot was edible.
  • Example 3 A ventilation member (member for forming a freshness holding container) shown in FIG. 15 and having a length of 5 cm and a width of 10 cm was formed.
  • the width of the ultrasonic bonding portion 108 by the ultrasonic welding method was set to 10 mm.
  • the shape of the ventilation path 110 was a curve as shown in FIG. 3, the width was 0.8 mm, the width L was 32 mm, the L / W was 40, and the interval between the ventilation paths was 10 mm.
  • An adhesive layer having a width of 5 mm was provided around the rear surface, and release paper was attached to the entire rear surface.
  • Example 2 the same container as in Example 2 was prepared.
  • the release paper of the member for forming a freshness holding container was peeled off, and the member for forming a freshness holding container was stuck so as to cover the hole of the container to form a freshness holding container.
  • Container 102 Main body 104: Lids 106, 106a, 106b: Film 108: Ultrasonic joint (joining area) 110: Ventilation path (non-joined part)

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Abstract

L'invention concerne un récipient de conservation de fraîcheur qui peut longtemps garder la fraîcheur du contenu avec très peu d'infiltration d'oxygène, un élément constitutif de récipient de conservation de fraîcheur, et un procédé de fabrication associé. Un récipient de conservation de fraîcheur (100) présente une partie de ventilation, la partie de ventilation ayant une région d'assemblage en forme de bande ayant une largeur de 5 à 15 mm dans laquelle deux extrémités des films (106a, 106b) sont superposées et assemblées, la région d'assemblage est composée d'une partie d'assemblage par ultrasons en forme de bande (108) par laquelle deux parties extrémités du film sont assemblées l'une à l'autre, une partie de non-assemblage dans laquelle les parties extrémités superposées des films ne sont pas assemblées est disposée dans la partie d'assemblage par ultrasons, la partie de non-assemblage constitue un passage d'air non linéaire (110) qui fait communiquer l'espace interne du récipient et l'extérieur du récipient, et le passage d'air a une largeur W de 0,2 mm ≤ W ≤ 3 mm et une longueur L de 20 mm ≤ L ≤ 50 mm.
PCT/JP2019/025914 2018-07-03 2019-06-28 Récipient de conservation de fraîcheur, élément constitutif de récipient de conservation de fraîcheur et procédé de fabrication d'un tel récipient Ceased WO2020009036A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018126565A JP2020006960A (ja) 2018-07-03 2018-07-03 鮮度保持容器、鮮度保持容器構成用部材及びその製造方法
JP2018-126565 2018-07-03

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WO2020009036A1 true WO2020009036A1 (fr) 2020-01-09

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PCT/JP2019/025914 Ceased WO2020009036A1 (fr) 2018-07-03 2019-06-28 Récipient de conservation de fraîcheur, élément constitutif de récipient de conservation de fraîcheur et procédé de fabrication d'un tel récipient

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JP (1) JP2020006960A (fr)
TW (1) TW202005883A (fr)
WO (1) WO2020009036A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020147376A (ja) * 2020-06-08 2020-09-17 株式会社Ｗ 食品保存用容器

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62174039U (fr) * 1986-04-25 1987-11-05
JPH06255692A (ja) * 1993-02-24 1994-09-13 Dainippon Printing Co Ltd 納豆容器
JPH0840466A (ja) * 1994-07-27 1996-02-13 Nidaiki Kk 通気袋
JPH11240579A (ja) * 1998-02-25 1999-09-07 Nidaiki Kk 袋又は容器に備えるガス抜き機能フイルム材
JP2001354210A (ja) * 2000-06-09 2001-12-25 Fujimori Kogyo Co Ltd シール方法、シール装置及び袋体
JP2003081352A (ja) * 2001-09-10 2003-03-19 Risu Pack Co Ltd ガス抜き機能を有した包装用容器のためのラベル
WO2009090674A2 (fr) * 2008-01-17 2009-07-23 Ashok Chaturvedi Emballages à auto-ventilation
JP2018016403A (ja) * 2016-07-29 2018-02-01 三井化学東セロ株式会社 青果物の鮮度保持用に好適なガス透過性、防曇性に優れた包装袋、及びそれを用いた包装体
WO2018034344A1 (fr) * 2016-08-19 2018-02-22 株式会社Ｗ Corps de sac

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62174039U (fr) * 1986-04-25 1987-11-05
JPH06255692A (ja) * 1993-02-24 1994-09-13 Dainippon Printing Co Ltd 納豆容器
JPH0840466A (ja) * 1994-07-27 1996-02-13 Nidaiki Kk 通気袋
JPH11240579A (ja) * 1998-02-25 1999-09-07 Nidaiki Kk 袋又は容器に備えるガス抜き機能フイルム材
JP2001354210A (ja) * 2000-06-09 2001-12-25 Fujimori Kogyo Co Ltd シール方法、シール装置及び袋体
JP2003081352A (ja) * 2001-09-10 2003-03-19 Risu Pack Co Ltd ガス抜き機能を有した包装用容器のためのラベル
WO2009090674A2 (fr) * 2008-01-17 2009-07-23 Ashok Chaturvedi Emballages à auto-ventilation
JP2018016403A (ja) * 2016-07-29 2018-02-01 三井化学東セロ株式会社 青果物の鮮度保持用に好適なガス透過性、防曇性に優れた包装袋、及びそれを用いた包装体
WO2018034344A1 (fr) * 2016-08-19 2018-02-22 株式会社Ｗ Corps de sac

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020147376A (ja) * 2020-06-08 2020-09-17 株式会社Ｗ 食品保存用容器

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JP2020006960A (ja) 2020-01-16
TW202005883A (zh) 2020-02-01

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