EP3299306B1 - Bottle for aseptic packing - Google Patents

Bottle for aseptic packing Download PDF

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Publication number
EP3299306B1
EP3299306B1 EP16796552.4A EP16796552A EP3299306B1 EP 3299306 B1 EP3299306 B1 EP 3299306B1 EP 16796552 A EP16796552 A EP 16796552A EP 3299306 B1 EP3299306 B1 EP 3299306B1
Authority
EP
European Patent Office
Prior art keywords
bottle
center
ground contact
bottom portion
dome
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16796552.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3299306A4 (en
EP3299306A1 (en
Inventor
Tatsuki Kado
Shinya Ito
Naoya Ogasawara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suntory Holdings Ltd
Original Assignee
Suntory Holdings Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=57320284&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3299306(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Suntory Holdings Ltd filed Critical Suntory Holdings Ltd
Publication of EP3299306A1 publication Critical patent/EP3299306A1/en
Publication of EP3299306A4 publication Critical patent/EP3299306A4/en
Application granted granted Critical
Publication of EP3299306B1 publication Critical patent/EP3299306B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0261—Bottom construction
    • B65D1/0284—Bottom construction having a discontinuous contact surface, e.g. discrete feet
    • 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
    • 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
    • B65D2501/00—Containers having bodies formed in one piece
    • B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B65D2501/0018—Ribs
    • B65D2501/0036—Hollow circonferential ribs

Definitions

  • the present invention relates to an aseptic filling bottle having a mouth portion, a shoulder portion, a body portion and a bottom portion.
  • an aseptic filling method of filing liquid in a bottle under a sterilized state As a method of filling liquid in a plastic bottle, there is known an aseptic (sterilized) filling method of filing liquid in a bottle under a sterilized state. With this aseptic filling method, it is possible to prevent the plastic bottle from being exposed to a high temperature. For this reason, an aseptic filling bottle filled by the aseptic filling method (to be referred to as an "aseptic filling bottle” hereinafter) may have only low heat resistance, thus allowing the bottle to be formed thin and light.
  • Patent Document 1 proposes a bottle capable of suppressing buckling of its bottom portion by providing a dome-shaped recess at the center of a center portion of the bottom portion, with the recess intruding the bottle interior.
  • JP 2009 298483 A relates to a container, in particular to a bottle made of thermoplastic material and provided with a reinforced base.
  • the thermoplastic container has a body and a base including: a concave arch, a concave dome opening at the center of the arch, an annular zone surrounding the base of the arch and forming a flat foundation, claw-shaped zones radially extending the base of the body and offset projecting outwards relative to the arch, and radial grooves delimited between the zones in the shape of claws, wherein the grooves having bottoms which are formed by radial sections of the arch and which have a radially variable depth which is maximum in correspondence with the annular zone forming a foundation.
  • a plastic bottle filled with contents is to be stored not only at a room temperature or a lowered temperature, but may also be stored under freezing in order to store its contents under its frozen state.
  • expansion of the contents occurs due to freezing, which may cause buckling of the bottom portion.
  • this problem appears conspicuously in an aseptic filing bottle which fails to take expansion/contraction of inside air into its designing consideration. In the worst case, not only occurrence of the buckling, but also rupture of the bottle is conceivable.
  • a force applied to the bottom portion due to expansion of contents is greater than a force applied to the bottom portion due to rise of inside pressure caused by carbonate bubbling.
  • the bottle of Patent Document 1 had a strength to such a degree to be able to suppress the buckling at the time of filling of carbonated drink, but not to such a degree as to suppress the buckling due to expansion of contents stored under frozen state.
  • the arrangement such as that of Patent Document 1 is implemented, there would arise also difficulty in consideration of aesthetic aspect and desirable weight reduction of the bottle.
  • an aseptic filling bottle has not been positively used for freeze storage.
  • an aseptic filling bottle having a mouth portion, a shoulder portion, a body portion and a bottom portion; wherein the bottom portion includes a ground contact portion that comes into contact with a mounting surface, a center portion that progressively intrudes interior of the bottle as it extends radially inwards from the ground contact portion, and a dome portion that is provided at a center of the center portion to intrude the interior of the bottle further than the center portion; and wherein a circumferential edge of the dome portion side of the center portion has an intrusion height into the bottle interior, which height is higher than half the height from the ground contact portion to a boundary between the body portion and the bottom portion, wherein the position of the boundary between the body portion and the bottom portion corresponds to the height position where the diameter of a bottle main portion begins to diminish toward the bottom face.
  • the present inventors found that rather than forming only the center of the center portion in the dome-shape intruding the bottle interior, an arrangement of keeping such dome-shape portion and also configuring the whole center portion from the circumferential edge to the ground contact portion to progressively intrude the bottle interior as it extends radially inwards, can achieve further increase of the strength of the bottle bottom portion.
  • the present inventors further found that the strength increasing effect can be even enhanced by an arrangement of setting the maximal intrusion height of the center portion, i.e. the intrusion height of the circumferential edge of the dome portion side, into the bottle interior higher than half the height of the bottom portion.
  • the strength of the bottom portion can be increased effectively.
  • the strength of the bottom portion can be increased effectively.
  • the center portion is formed arcuate.
  • the strength of the bottom portion can be further increased since the above arrangement can render the pressure to be applied to the center portion uniform.
  • the buckling phenomenon of the bottom portion under freeze storage can be suppressed in an even more effective manner.
  • a concave groove portion is formed radially from the center portion.
  • the concave groove portion extends from the dome portion to a circumferential edge portion located radially outwards of the ground contact portion.
  • the concave groove portion for bottom portion reinforcement is formed long from the dome portion to the circumferential edge portion, the strength of the bottom portion can be further increased.
  • the concave groove portion has a depth with respect to the ground contact portion which ranges from 2.5 mm to 5.0 mm.
  • the strength of the bottom portion can be further increased.
  • At the body portion at least one recess-like rib which extends circumferentially around its circumference is formed.
  • volumetric expansion of the contents under freeze storage can be absorbed to a certain extent by the recess-like rib provided in the body portion.
  • the force to be applied due to volumetric expansion can be reduced, so that the buckling phenomenon of the bottom portion under freeze storage can be suppressed even more effectively.
  • An aseptic filling bottle 1 relating to this embodiment includes a mouth portion 2, a shoulder portion 4, a body portion 5 and a bottom portion 6.
  • the bottom portion 6 includes a ground contact portion 10 that comes into contact with a mounting surface, a center portion 12 that progressively intrudes the interior of the bottle as it extends radially inwards from the ground contact portion 10 toward the center of the bottom portion 6, and a dome portion 13 that is provided at the center of the center portion 12 to intrude the interior of the bottle further than this center portion 12.
  • the center portion 12 is configured such that a circumferential edge 12a of the dome portion side of this center portion 12 has an intrusion height D1 into the bottle interior, which height is higher than a half D2 the height from the ground contact portion 10 to the boundary between the body portion 5 and the bottom portion 6. With these arrangements, buckling phenomenon of the bottom portion under freeze storage state can be effectively suppressed.
  • the aseptic filling bottle 1 according to the instant embodiment will be described in greater details.
  • the aseptic filling bottle (to be referred to simply as "bottle” hereinafter) 1 relating to this embodiment includes, as shown in Fig. 1 , the mouth portion 2 acting as a spout for dispensing liquid and a bottle main portion 3 to be filled with the liquid.
  • the bottle main portion 3 includes the shoulder portion 4, the body portion 5 and the bottom portion 6.
  • the shoulder portion 4 designates a portion which is continuous with the mouth portion 2 and which has a progressively increasing diameter as it extends toward the bottom face.
  • this shoulder portion 4 is comprised of a combination of polygonal "panels" of various shapes.
  • the body portion 4 designates a tubular portion continuous with the shoulder portion 3.
  • the bottom portion 5 designates a part of the bottle main portion 3 where the circumferential face of this body main portion 3 is progressively decreased in its diameter toward the bottom face.
  • the position of the boundary between the body portion 5 and the bottom portion 6 corresponds to the height position where the diameter of the bottle main portion 3 begins to diminish toward the bottom face.
  • the bottle 1 relating to the present embodiment is a bottle for aseptic (sterilized) filling method of filling liquid in the bottle under a sterilized state.
  • the aseptic filling method it is possible to prevent a plastic bottle from being exposed to a high temperature, so that the bottle 1 may have a low heat resistance, thus allowing it to be configured as a thin and light bottle.
  • the bottle 1 can be formed by integral molding of such main material as polyethylene, polypropylene, polyethyleneterephthalate, etc. using specifically a stretch molding technique such as the biaxial stretch blow molding.
  • the bottle 1 relating to the instant embodiment, as will be described later, is configured to be able to withstand filed contents volumic expansion when liquid filled therein is stored under frozen state.
  • Preferred examples of the contents to be filled in the bottle 1 are non-carbonated drink, which can be stored under frozen state, such as mineral water, tea, soft drink, or fruit juices.
  • carbonated drink or a food product such as sauce can be employed suitably.
  • the body portion 5 consists essentially of a straight body portion 5a as a "body upper portion”, a constricted portion 5b and a cushioning portion 5c as a "body lower portion”.
  • a straight body portion 5a As a "body upper portion”, a constricted portion 5b and a cushioning portion 5c as a "body lower portion”.
  • Each recess-like rib 7 has a shape which is concave on the inner side in the radial direction (the direction extending toward a center axis X of the bottle 1 and along the horizontal direction).
  • the width and depth of the respective recess-like rib 7 are set approximately constant around the entire circumference thereof.
  • These recess-like ribs 7 function as reinforcing ribs for increasing the strength of the lateral face of the bottle 1 and function also as portions for absorbing volumetric expansion of the contents at the time of freeze storage through stretching of the bottle 1 in the vertical upward direction.
  • the constricted portion 5b is a portion configured to facilitate consumer's gripping of the bottle 1.
  • the constricted portion 5b has a shape comprised of combination of polygons having various shapes as seen in its front view. The diameter of the constricted portion 5b progressively diminishes toward the vertical center position thereof.
  • the cushioning portion 5c includes a V-shaped recess portion 8 and two small recess portions 9a, 9b acting respectively as the recess-like ribs 7 and has a three-stage spring-like arrangement. With this, the cushioning portion 5c can be elastically deformed in the vertical direction. Therefore, even when a load is applied to the bottle 1 in the vertical direction, this load can be absorbed by elastic deformation of the cushioning portion 5c, whereby buckling of the bottle 1 can be prevented. Further, the V-shaped recess portion 8 and the small recess portions 9a, 9b function also as portions for absorbing, through their deformation, volumetric expansion of the contents liquid at the time of freeze storage. Further, the lower small recess portion 9b serves also as the boundary between the body portion 5 and the bottom portion 6.
  • the body portion 5 is configured as described above and in this body portion 5, the recess-like ribs 7 are formed in the upper portion (straight body portion 5a) and the lower portion (the constricted portion 5b and the cushioning portion 5c) of the body portion, respectively.
  • the recess-like ribs 7 can be formed at least one in any chosen position in the body portion 5.
  • two or more such recess-like ribs 7 will be formed in the body portion 5.
  • at least one will be formed in the body lower portion and a plurality thereof will be formed in the body upper portion. In the instant embodiment, total of six recess-like ribs 7 are formed in the straight body portion 5a as the body upper portion.
  • the recess-like rib 7 should have a shape which is concave on the inner side in the radial direction and which extends along the entire circumference.
  • the straight body portion 5a (the body upper portion) is a portion where an unillustrated label is to be wound.
  • the bottom portion 6 includes the annular ground contact portion 10 which is to be placed in contact with a mounting surface such as that of a desk.
  • the bottom portion 6 further includes a circumferential edge portion 11 which is the portion on the radial outer side of the ground contact portion 10, the center portion 12 which is the portion on the radial inner side relative to the ground contact portion 10, and the dome portion 13 that intrudes the bottom interior further than the center portion 12.
  • the center portion 12 has a shape that progressively intrudes the interior of the bottle 1 (upwards in Fig. 1 ) as it extends radially inwards from the ground contact portion 10, so that the center portion 12 is formed arcuate from the ground contact portion 10 to the dome portion 13. Further, as shown in Fig.
  • the circumferential edge 12a of the dome portion side of the center portion 12 has an intrusion height D1 into the bottle interior, which height is higher than half the height D2 from the ground contact portion 10 to a boundary 6a between the body portion 5 and the bottom portion 6.
  • the dome portion 13 has a trapezoidal shape as seen in its vertical section.
  • a plurality (eight in this embodiment) of concave groove portions 14 that extend from the dome portion 13 to the circumferential edge portion 11.
  • These concave groove portions 14 provide reinforcement of the strength of the bottom portion 6.
  • the ground contact portion 10 the circumferential edge portion 11 and the center portion 12 are sectioned from each other in the circumferential direction (the direction around the center axis X of the bottle 1).
  • a height position of a circumferential edge portion 11 side end portion 14a of the respective concave groove portion 14 is set approximately same as a height position of a top portion 13a of the dome portion 13.
  • the respective concave groove portion 14 has a depth at its ground contact portion 10, which depth ranges from 2.5 mm to 5.0 mm. If the depth were smaller than 2.5 mm, this would make it difficult to obtain sufficient strength reinforcement. Whereas, if the depth were greater than 5.0 mm, such excessive depth would impair the aesthetic appearance of the bottom 1 and/or could cause need for design change in the other portions.
  • the bottom portion 6 is configured to have 0.12 or more weight ratio of this bottom portion 6 relative to the total weight of the bottle 1. Namely, with increase of the weight ratio of the bottom portion 6, the wall thickness of this bottom portion 6 is positively increased, so that for the bottle as a whole, the strength of the bottom portion 6 can be increased positively or with emphasis. As a result, it becomes possible to increase the strength of the bottom portion 6 up to a degree capable of suppressing buckling of this bottom portion 6 at the time of freeze storage.
  • Table 1 shows relationship between the weight ratio of the bottom portion 6 relative to the total bottle weight (bottom portion/total in Fig.
  • the capacity of the bottle 1 is not particularly limited, but can range from 200 ml (milliliter) to 2 l (liter), which are commonly employed commercially.
  • the bottle 1 is formed with a capacity for filling 550 ml of liquid.
  • its full filling capacity (the capacity for filling liquid up to the mouth portion 2 fully) is set 577 ml.
  • the ratio of weight (g) of the bottom 1 relative to the full filling capacity of the bottom 1 is set to from 0.017 to 0.040 (g/ml).
  • the weight is set to 14.9 g and the ratio of the weight relative to the full filling capacity is set to 0.26 approximately.
  • the capacity ratio of the space not filled with the contents liquid (i.e. the margin portion not filled with the contents) relative to the full filling capacity should range 0.12 or less.
  • the capacity ratio of the space not filled with liquid relative to the full filling capacity is set to 0.05 approximately. Namely, when freeze storage situation is contemplated, the volumetric expansion of the contents liquid is to be taken into consideration, so that the space not filled with the contents liquid will be increased in order to absorb such volumetric expansion.
  • the bottle 1 relating to the present embodiment is suitable for a case of sufficiently filling the contents liquid relative to the full filling capacity. For this reason, as a filled bottle sufficiently filled with contents liquid with the space not filled with the contents liquid relative to the full filling capacity being set to 0.12 or less, the bottle 1 relating to the present embodiment can be used suitably.
  • the body portion 5 is comprised of the straight body portion 5a, the constricted portion 5b and the cushioning portion 5c.
  • the embodiment of the present invention is not limited thereto.
  • the body portion 5 can be comprised of the straight body portion 5a only.
  • the body portion 5 can be comprised of the straight body portion 5a, plus either the constricted portion 5b or the cushioning portion 5c.
  • the present invention is applicable to e.g. a plastic bottle filled with contents liquid by the aseptic filling method.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP16796552.4A 2015-05-20 2016-05-19 Bottle for aseptic packing Active EP3299306B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015103127A JP7012417B2 (ja) 2015-05-20 2015-05-20 アセプティック充填用ボトル
PCT/JP2016/064848 WO2016186159A1 (ja) 2015-05-20 2016-05-19 アセプティック充填用ボトル

Publications (3)

Publication Number Publication Date
EP3299306A1 EP3299306A1 (en) 2018-03-28
EP3299306A4 EP3299306A4 (en) 2019-02-13
EP3299306B1 true EP3299306B1 (en) 2020-04-29

Family

ID=57320284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16796552.4A Active EP3299306B1 (en) 2015-05-20 2016-05-19 Bottle for aseptic packing

Country Status (7)

Country Link
US (1) US20180162579A1 (zh)
EP (1) EP3299306B1 (zh)
JP (1) JP7012417B2 (zh)
CN (1) CN107709175A (zh)
AU (1) AU2016264086B2 (zh)
ES (1) ES2798300T3 (zh)
WO (1) WO2016186159A1 (zh)

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JP7241456B2 (ja) * 2017-03-07 2023-03-17 サントリーホールディングス株式会社 アセプティック充填用ボトル
BR112019025417A2 (pt) * 2017-06-12 2020-06-16 Société des Produits Nestlé S.A. Base de fundo de um recipiente dotada de arco bicôncavo
MX2020002103A (es) * 2017-08-25 2020-07-14 Graham Packaging Co Base y envase de desplazamiento variable y metodo para utilizar los mismos.
JP2019094128A (ja) * 2017-11-22 2019-06-20 三菱ケミカル株式会社 プラスチックボトル
WO2019210119A1 (en) * 2018-04-26 2019-10-31 Graham Packaging Company, L.P. Pressurized refill container resistant to standing ring cracking
US10926911B2 (en) 2018-10-15 2021-02-23 Pepsico. Inc. Plastic bottle with base
JP7454914B2 (ja) * 2019-03-29 2024-03-25 サントリーホールディングス株式会社 プラスチックボトル
JP7400380B2 (ja) * 2019-11-18 2023-12-19 東洋製罐株式会社 合成樹脂製容器
JP7370248B2 (ja) * 2019-12-27 2023-10-27 株式会社吉野工業所 ボトル
AU2021202920A1 (en) * 2020-05-08 2021-11-25 Orora Packaging Australia Pty Ltd A bottle, and an insert and a mould for making the bottle
DOS2023000027S (es) * 2022-08-11 2023-08-15 Tamalfi Sa Botella con corte

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Also Published As

Publication number Publication date
JP7012417B2 (ja) 2022-01-28
EP3299306A4 (en) 2019-02-13
ES2798300T3 (es) 2020-12-10
AU2016264086B2 (en) 2020-04-30
EP3299306A1 (en) 2018-03-28
JP2016216093A (ja) 2016-12-22
WO2016186159A1 (ja) 2016-11-24
AU2016264086A1 (en) 2017-12-07
CN107709175A (zh) 2018-02-16
US20180162579A1 (en) 2018-06-14

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