EP2938547B1 - Récipient rétractable à paroi mince en matière plastique moulé par soufflage - Google Patents

Récipient rétractable à paroi mince en matière plastique moulé par soufflage Download PDF

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Publication number
EP2938547B1
EP2938547B1 EP12816478.7A EP12816478A EP2938547B1 EP 2938547 B1 EP2938547 B1 EP 2938547B1 EP 12816478 A EP12816478 A EP 12816478A EP 2938547 B1 EP2938547 B1 EP 2938547B1
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EP
European Patent Office
Prior art keywords
thin
walled
bottle
neck
retractable
Prior art date
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EP12816478.7A
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German (de)
English (en)
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EP2938547A1 (fr
Inventor
Marie-Bernard BOUFFAND
Alain Colloud
Christine GEHRINGER
Agnieszka JEZIORSKA
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.)
Societe des Eaux Minerales dEvian SA SAEME
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Societe des Eaux Minerales dEvian SA SAEME
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Priority to PL12816478T priority Critical patent/PL2938547T3/pl
Publication of EP2938547A1 publication Critical patent/EP2938547A1/fr
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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
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/0088—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
    • B65D71/0092—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck provided with one or more rigid supports, at least one dimension of the supports corresponding to a dimension of the load, e.g. skids
    • B65D71/0096—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck provided with one or more rigid supports, at least one dimension of the supports corresponding to a dimension of the load, e.g. skids the dimensions of the supports corresponding to the periphery of the load, e.g. pallets
    • 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
    • B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
    • 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
    • B65D1/0292—Foldable bottles
    • 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
    • B65D1/40—Details of walls
    • 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
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/02—Arrangements of flexible binders
    • 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
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D3/0029—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes provided with holders for bottles or similar containers
    • B67D3/0035—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes provided with holders for bottles or similar containers the bottle or container being held upside down and not provided with a closure, e.g. a bottle screwed onto a base of a dispenser
    • 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
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
    • B65D2571/00043—Intermediate plates or the like

Definitions

  • This invention relates generally to the construction of a thin-walled bottle, suitable for containing water or other liquids. It is particularly applicable to the construction of thin-walled bottles for containing water for human consumption (generically drinking water hereafter) and which can be used in conjunction with water dispensing units.
  • jugs Large containers, also named jugs, which are employed in the servicing of drinking water in dispensing units are customarily cylindrical in form. Such jugs, when applied to units of the electrical or non-electrical type, are inverted and positioned upon the upper portion of the dispensing unit to supply water to an inner reservoir as it is being dispensed. Water is supplied to the reservoir from a replaceable jug which is inverted on the top of the cooler unit, the neck of the bottle being placed in a funnel-shaped inlet to the reservoir at the top of the dispensing unit. Pumps can also be used to supply water out of the jugs. The capacity of a typical jug is of the order of five gallons.
  • the jugs are blow moulded from plastic material such as polyester terephtalate or polycarbonate.
  • a plastic cap fits over the top of the neck to close the jug whilst it is in transit or storage.
  • these jugs are returnable and refillable, they are thus subjected to numerous handling and storage operations and conditions, wherein they are exposed to mechanical constraints such as abrasive wear, notably in the contact area between the jugs after stacking, or such as drops.
  • the requirements of the moulded plastic jugs are notably resistance to abrasion (scuffing) and impact or drop resistance.
  • the moulded plastic jugs have a wall thickness of at least 400 ⁇ m, preferably 500 ⁇ m, and more preferably comprised between 600 and 1500 ⁇ m.
  • This wall thickness requirement is linked to the relatively large capacity of the thin-walled bottle, i.e at least, in an increasing order of preference and in liters: 10; 15; 21.
  • each sampling of liquid involves an intake of ambient air to compensate for the sampled volume.
  • the compensating ambient air contaminates the liquid ( e . g . water). This contamination comes to a head as the thin-walled bottle is almost empty. This is a noteworthy sanitary drawback.
  • Thin-walled PET containers for beverages e . g . water
  • Thin-walled PET containers for beverages e . g . water
  • Injection moulding of a preform as well as Stretching, Blowing and Moulding (ISBM) are also known.
  • EP1436203B1 discloses a PET container including walls made of flexible PET plastic and comprising a 30-100 ⁇ m-walled body (1) with greater section of dimension (d1) and neck (2) with internal diameter (d2), closed by a closing-off member (3).
  • the wall(s) (4) forming the body of the container is made of flexible plastic which can be deformed for constant surface area, particularly under the weight of the flowable product contained in the container when the wall(s) encounter a point or bearing surface, so as to form, non-planar wall portion (5).
  • the ratio of d2 on d1 is 1:3-1:10.
  • EP1468930B1 concerns a container having a body (1) formed by a wall (4) with a diameter S1 and at least a neck (2) with a diameter S2, made from a semi-crystalline PET, having a wall thickness of less than 100 ⁇ m, substantially in the middle of its body and having a complex, three dimensional shape (3) convenient for gripping, this part having diameter S3.
  • These containers are unpractical for example due to a bad resistance and/or low compactability.
  • EP1527999B1 describes a container comprising a body formed by walls and a bottom having in his greater section a dimension d1 and a neck with an internal diameter d2 , said container being made from a semi-crystalline PET , the body of said container comprising at its bottom at least three feet spaced from each other and being integral with said body, wherein for the body, the ratio weight of the walls on weight of the bottom is comprised between 3 and 4 and wherein the ratio volume, in ml of the body of the container per gram of PET of the body is comprised between 80 and 120, and wherein the walls of the body have a thickness of less than 100 ⁇ m, and the bottom has a thickness between 100 ⁇ m and 200 ⁇ m, and each foot has a wall thickness of 50 ⁇ m to 150 ⁇ m.
  • These containers however are unpractical for example due to a bad resistance and/or low compactability.
  • JP2001122237 discloses a PET thin-walled bottle including a neck segment 1, a shoulder 2, a barrel segment 3 is formed into a thin-walled segment.
  • the shoulder 2 is formed to have a wall thickness of 0.2 to 0.3 mm.
  • a segment ranging from an interface 5 of the shoulder 2 to a part lower than the barrel 3 is formed to have an ultrathin wall of 0.02 to 0.05 mm in such a way that the shoulder can be pushed into the barrel after use of the thin-walled bottle, to enable the thin-walled bottle to be scrapped.
  • a deformation strength of the barrel 3 is increased by notch of a lateral rib 6 of optional shape.
  • US2010206876A1 pertains to a PET disposable thin-walled high-capacity container is obtained by blowing a preformed shape 10 that has a collar 12 and a neck 14 designed to receive a plug 16 and is able to exhibit residual stresses after its shaping to the desired volume.
  • the container has a material weight/developed surface ratio of said container of between 150 g/m 2 and 250 g/m 2 .
  • the container is filled with water under cold conditions and without pressure, and then sealed using a plug that can be pierced.
  • This compact container can be set upside down in a dispenser, including a trocard which pierces the plug and depressurizes the container which becomes soft and must be held by receiving means thereof.
  • the dispensing of water is facilitated by a ballast 32 which is not convenient.
  • ballast 32 which is not convenient.
  • These containers are however unpractical, due the need of a ballast for compacting efficiently. Moreover, these containers are not adapted to be stored easily in a minimum of space.
  • US5632397 discloses a bottle according to the preamble of claim 1.
  • the invention aims at fulfilling at least one of the following objectives:
  • a plastic thin-walled bottle according to claim 1 which concerns, in a first aspect, a plastic thin-walled bottle according to claim 1.
  • the thin-walled bottle, according to the invention is endowed with the required properties: food compatible, single use, environment-friendly, waterproof and airtight, easy handling, storing and stacking up, non subjected to air contamination at each sampling in a dispenser, good mechanical properties (shocks & scuffing strength), lightness, attractive appearance, and best balance of properties and cost/performance ratios deemed necessary to plastic containers.
  • the thin-walled container is manufactured by Blow Moulding processes, preferably Injection Stretch Blow Moulding processes.
  • Blow Moulding processes preferably Injection Stretch Blow Moulding processes.
  • Such processes are known by the one skilled in the art. They typically involve making a plastic preform by an injection process and then heating and blowing the preform, optionally with stretching.
  • the plastic preform, and de facto the container obtained therefrom is preferably made of a (thermo)plastic material chosen preferably among the polymers which exhibit strain hardening when they are elongated, and, more preferably among the polymers which exhibit strain hardening when they are elongated, and, more preferably among the polyesters, particularly the aromatic polyesters, more particularly chosen in the group comprising, and even more particularly consisting in : PolyEthylene Terephtalate (PET) and/or PolyEthyleneNaphtalate(PEN) or PolyEthylene Furanoate (PEF), PolyPropylene Terephtalate (PPT).
  • PET PolyEthylene Terephtalate
  • PEN PolyEthyleneNaphtalate
  • PEF PolyEthylene Furanoate
  • PPT PolyPropylene Terephtalate
  • the thin-walled container according to the invention is preferably a bottle wherein the top part includes:
  • the plastic thin-walled container according to the invention has a volume, typically when filled, of at least -given in liters and in an increasing order of preference- 2 ; 3 ; 5 ; and more preferably comprised in a range of 2-20 liters, preferably of 7.5-12.5 liters
  • the (moulded) plastic thin-walled bottle of the invention includes at least one terminal retractable part, which is in the top part and/or in the bottom structure of the thin-walled bottle.
  • the thin-walled container includes at least one terminal retractable part of its bottom:
  • the thin-walled container includes at least one terminal retractable part in its top area
  • said part is preferably the neck finish, the neck and at least a part of the shoulder, and its top is retractable under the effect of an axial force which is applied in order to stack the thin-walled container(s) - e . g . bottle(s)- and/or by the thin-walled container(s) - e . g . bottle(s)- laid above.
  • the terminal retractable part in the top area comprises at least one retractation starter, which is an annular rib on the shoulder. Such a retractation of the top and/or the bottom of the container -e.g. bottle-contributes to the pressurization of the bottle filled with a liquid.
  • each transversal groove or rib comprises at least 2, preferably at least 4, and more preferably between 4 and 8 collapse/fold starters.
  • the collapse starters preferably extend inwardly -recess- or outwardly -pin- with respect to the axis of the thin-walled bottle.
  • At least one transversal groove or rib For example, at least one transversal groove or rib:
  • said collapse/fold starters have at least one of the following features:
  • transversal groove or rib preferably fulfils to at least one of the following specifications:
  • its tubular body portion is substantially cylindrical, polyhedral or comprised substantially plane face(s) and curved face(s), preferably substantially plane face(s) linked by curved face(s).
  • the transversal grooves and/or ribs of the plastic thin-walled bottle can be continuous or discontinuous.
  • the container according to the invention can be free from one or several vertical groove(s) and/or folding line(s) and/or rib(s).
  • the thin-walled bottle shown on the enclosed drawings, especially figures 1A-1B-2 is a biaxial stretched blowed molded thin-walled bottle (1), which has a general cylindrical shape and which is made of PET, without being limited to this specific substance, it being also possible to make the bottle out of a material that is simple or composite, multilayer or compound, such as PVC or a polyolefin or a polyester.
  • This thin-walled bottle (1) has a large-sized (e.g 20 liters) and is notably intended to contain water and to be set upside down on dispenser unit for Home and Office Delivery (HOD) as shown on figure 5A .
  • HOD Home and Office Delivery
  • This thin-walled bottle (1) is composed, from the top to the base, of the following parts:
  • the neck end (2) is threaded to receive a screwed cap 2' as shown on figures 5C ; 5J ; 6A ; 6B .
  • the cap 2' can be a snap cap which is fitted by force on an adapted neck finish composed of a neck end (2) and of a neck support ring (3).
  • the bottom of the screwed cap 2' is linked to a tamper-proof ring which lies on the neck support ring (3) which separates the neck end (2) and the neck (4).
  • the rib (5 1 ) of the shoulder (5) which acts as a retractation starter of the top of the thin-walled bottle (1) is shown in detail on figure 2 .
  • Said rib (5 1 ) behaves as a reinforcement which makes it possible the thrusting of the upper part of the shoulder (5) and of the neck end (2), when a downward force is applied on the neck end (2) and /or when a upward force is applied on the bottom (7) of the thin-walled bottle (1).
  • the retractation of the upper part of the shoulder (5) together with the neck end (2) of a water-filled and stacked thin-walled bottle (1) according to the invention is shown on Fig.6B .
  • the width of the rib (5 1 ) is, for instance, comprised between 1-30 mm, preferably between 7-20 mm, more preferably equal to circa 12 mm.
  • the height of the rib (5 1 ) is, for instance, comprised between 0.5-20 mm, preferably between 2-10 mm, more preferably equal to circa 6 mm.
  • the tubular body portion (6) is imprinted with e . g . 9 transversal continuous grooves (6 1 ), each of them comprising 4 or 6 collapse/fold starters (6 2 ) , which are angularly offset around the axis.
  • the grooves (6 1 ) of the thin-walled bottle (1) have each a V-shaped cross-section, and more particularly two coplanar edges (58) and an intermediate portion between the two edges (58), said intermediate portion presenting an apex (56) inwardly shifted with respect to the two edges.
  • These latter are two straight branches (58) of the V-shape connected via circular arcs 60 to the substantially cylindrical side wall of the thin-walled bottle (1).
  • Each groove (6 1 ) presents a width (w) measured between the two edges and a maximum height (h) measured between the edges and the apex.
  • each groove (6 1 ) includes collapse (or fold) starters (6 2 ) which are bosses angularly distributed uniformly about the longitudinal axis (64) of the bottle (1) and which project outwardly from the bottoms of the grooves (6 1 ).
  • Said grooves (6 1 ) are of constant height h apart from the collapse starters (6 2 ).
  • the shape of the fold starters (6 2 ) can be defined as follows. In the plan view of figures 1C &1D (variant), they are respectively curved and circumflex, with an outwardly projecting apex.
  • Each starter (6 2 ) has a midplane of symmetry (66) that includes the axis (64) of the bottle (1).
  • each collapse starter (6 2 ) is defined by a generator line or ridge line (68) which extends between the two branches (58) of the groove (6 2 ) and which is connected to one of said branches by a circular arc 70 whose concave side faces towards the outside and has a radius lying in the range about 0.5 mm to the radius of the circular arc that is tangential to the generator line (68) and to the branch (58) of the groove; the generator line or ridge line (68) is a straight line connected to the other flank (58) of the groove via a rounded portion (72)
  • the radial extent ⁇ is the distance between the bottom (56) of the groove (6 1 ) and the point of intersection between the ridge line (68) and the midplane (74) of the groove (6 1 ).
  • the collapse starters (6 2 ) are offset angularly through an angle equal to ⁇ /n, where n is the number of collapse starters (6 2 ) per groove (6 1 ).
  • the number n lies typically in the range 3 to 20.
  • n 4 or 6 in the present examples, wherein the ridge lines (68) of the collapse starters (6 2 ) are also inclined to slope downwards and outwards.
  • the mean wall thickness (T mean ) of the tubular body portion (6) is comprised between 100 and 140 ⁇ m
  • a generatrix G of the thin-walled bottle (1) is graduated from (0) to (440).
  • the origin (0) is placed at the center of the bulge (9).
  • the graduation (440) is placed at the end of the shoulder (5) and at the beginning of the neck (4).
  • the tubular body portion (6) is comprised between the graduations circa 100 mm and circa 300 mm.
  • Figure 3 shows the wall thickness along the generatrix G for a bottle according to the present embodiment and made from PET W170, the intrinsic viscosity of which is circa 0.74 dl/g.
  • the retractation starter (7 1 ) joining the terminal curved portion (8) to the bulge is an annular groove or a folding line shown in details on the figure 2 .
  • Said annular groove (7 1 ) makes it possible the retractation of the bulge (9), when a upward force is applied on the bottom (7) and /or a downward force is applied on the neck end (2) of the thin-walled bottle (1), as this latter rests on a flat support. This is what is shown on figures 2 , 5C , and also on the figures 6A & 6C corresponding to the stacking.
  • the width of the groove (7 1 ) is, for instance, comprised between 1-15 mm, preferably between 2-8 mm, more preferably equal to circa 4 mm.
  • the height of the groove (7 1 ) is, for instance, comprised between 0.1-10 mm, preferably between 0.5-4 mm, more preferably equal to circa 2 mm.
  • the center of the bulge (9) comprises an inwardly extended dome (10).
  • Figure 4 represent a moulded plastic preform (11) for the blow molding manufacture of the thin-walled bottle (1) as above described.
  • Said preform (11) includes from the top to the bottom:
  • the wall thicknesses of the preform (11) is between 1 and 10 mm, preferably between 2 and 7 mm, more preferably for instance equal to 3.25 mm.
  • the ratio weight (g) of the preform (11) /capacity (liters) of the bottle (1) is between 1 and 10, preferably 4 and 7, for instance equal to 5.5.
  • blow moulding manufacturing method of the thin-walled bottle /jug (1) as defined above can be illustrated by the example as follows.
  • 20 litres bottles (1) as above defined are manufactured by injection and blowing with a a standard blow molding device including a shell mold in aluminium with an IR oven composed of 3 ovens and a shaft.
  • thermoplastic raw material is a PET resin W170 of NOVAPET and a PET resin Xtreme of VORIDIAN.
  • the intrinsic viscosity of these PET (IV) 0.74 dl/g.
  • Heat conditioning and preblow step B are implemented.
  • the parameters of this example are given hereafter: • Blowing parameters: - Power of the ovens % oven 1 oven 2 oven 3 0 % 75 % 100 % 0 % 0 % 0 % 0 % 55 % 45 % 0 % 0 % 0 % 0 % 45 % 50 % 0 % 0 % 0 % 45 % 50 % 0 % 5 % 5 % 0 % 45 % 42.5 % 0 % 0 % % 0 %
  • the bottles have a good appearance after blowing
  • T mean The thickness distribution (T mean ) of the bottles is given on figure 3
  • the stretching ratios of the thin-walled bottle (1) of the example are as follows:
  • the method of bottling a liquid into the of the thin-walled bottle (1) as defined above consists in filling the thin-walled bottle (1) with a liquid (e . g water) on bottling line, wherein the thin-walled bottle is put under pressure by means of the filled liquid (e. g water) which gives to the thin-walled bottle (1) a mechanical holding/resistance to deformation.
  • a liquid e. g water
  • the method for packing in view of storage and transportation of the thin-walled bottles (1) as defined above essentially consists in taking advantage of the fact that the upper part of the shoulder (5) together with the neck (4) and the neck finish (2,3) and the lower part of the integral bottom structure (7) of the thin-walled bottle (1), are retractable under the effect of coaxial forces.
  • Figures 6A-6B-6C show how the bottles (1) are placed side by side on different superposed levels (100), between which a plate (120) is intercalated. At least some of the bottles' rows are strapped with bands (130). And if need be (see figure 6C ), an axial pressure is exerted on the top of the top row so as to retract the tops and/or the bottoms of at least some of the palletized thin-walled bottles (1).
  • the plates (120) can be possibly pierced of holes which are intended to leave the bottles' necks of the lower go through.
  • the dispenser (500) shown on figure 5A comprises a base (510) including in its top a seating (520) designed to receive the top part [neck end (2)-neck support ring (3)-neck (4)-shoulder (5)] of the thin-walled bottle (1), which is set up-side down.
  • the cap (2') of the bottle (1) is classically perforated by a tip (not shown) which is connected to an inlet pipe (not shown), which is linked to one or several outlets, by which the liquid (e.g .water) coming from the thin-walled bottle (1) can be dispensed.
  • the outlets are each equipped with valves (530) for controlling the flowing of the liquid ( e . g .water).
  • the setting of the filled bottle (1) up-side down on the seating (520) of the dispenser (500) concomitantly with the perforation the cap (2') of the bottle (1) is the first step of the method for dispensing the liquid ( e . g . water). It is noteworthy that this first step does not involve entering of ambient air which could have contaminated the liquid ( e . g . water). Moreover, the bottle (1) set up-side down keeps its mechanical holding (self supporting) and self collapses as the liquid ( e . g . water) is sampled from the dispenser (500) by opening of the valve (530) as shown on figure 5A . The closing of this valve (530) stops the sampling of liquid ( e . g .
  • the dispenser (500) is a Home Office Dispenser (HOD) which can be equipped either with a manual pump or to an electric pump, and/or with means for refrigerating the water, one of the valve (530) dispensing refrigerated water and the other non-refrigerated water.
  • HOD Home Office Dispenser

Claims (6)

  1. Bouteille en plastique à paroi mince (1) présentant :
    ▪ une partie supérieure (2, 3, 4, 5) incluant :
    - un élément fini de goulot incluant une extrémité de goulot (2) et une bague de support de goulot (3) ;
    - un goulot (4) ;
    - un épaulement (5) ;
    ▪ une portion de corps tubulaire (6) jointe au goulot (4) par l'épaulement (5), la portion de corps (6) comprenant au moins deux rainures transversales (6.1) ou des nervures et présentant une épaisseur de paroi moyenne (Tmoyenne) - dans un ordre de préférence croissant - inférieure ou égale à 200 ; 180 ; 160 ; 150 µm; de préférence comprise entre 65 et 150 ; et de manière davantage préférée comprise entre 90 et 130 µm;
    ▪ et une structure inférieure (7) opposée à la partie supérieure (2, 3, 4, 5), la structure inférieure (7) incluant :
    - une portion courbée terminale (8),
    - un renflement (9) ;
    dans laquelle au moins une de la structure supérieure (2, 3, 4, 5) et inférieure (7) est rétractable ;
    la bouteille en plastique à paroi mince (1) étant caractérisée en ce qu'elle inclut au moins une partie rétractable terminale, ladite au moins une partie rétractable terminale étant au moins l'un parmi :
    - une partie rétractable terminale dans sa partie supérieure, ladite partie rétractable terminale étant rétractable sous l'effet d'une force axiale, ladite au moins une partie rétractable terminale dans la partie supérieure comprenant l'élément fini de goulot (2, 3), le goulot (4) et au moins une partie de l'épaulement (5), ladite partie rétractable terminale comprenant au moins un élément d'amorçage de rétractation (5.1) formé par une nervure annulaire sur l'épaulement, ou
    - le renflement (9), le renflement (9) étant une partie rétractable terminale étendue axialement vers l'extérieur dans la structure inférieure (7), ledit renflement (9) étant rétractable sous l'effet du propre poids de la bouteille à paroi mince (1), lorsque ladite bouteille à paroi mince (1) contient un liquide et lorsque la structure inférieure (7) de la bouteille à paroi mince (1) repose contre un support, ledit renflement (9) comprenant au moins un élément d'amorçage de rétractation (7.1) formé par une rainure annulaire qui joint la portion courbée terminale (8) au renflement (9).
  2. Bouteille en plastique à paroi mince (1) selon la revendication 1, caractérisée par les rapports d'étirement suivants :
    ▪ rapport d'étirement périphérique : 4,0 - 6,5 ; de préférence 4,2 - 6,0
    ▪ rapport d'étirement axial : 2,8 - 5,0 ; de préférence 3,0 - 4,5
    ▪ rapport d'étirement global : 11,20 - 32,5 ; de préférence 12,6 - 27,0
  3. Bouteille en plastique à paroi mince (1) selon la revendication 1 ou 2, caractérisée en ce qu'elle est fabriquée par un processus de moulage par soufflage, de préférence un processus de moulage par soufflage, étirement par injection.
  4. Bouteille en plastique à paroi mince (1) selon au moins l'une quelconque des revendications précédentes, présentant un volume, typiquement lorsqu'elle est remplie, d'au moins - donné en litres et dans un ordre de préférence croissant - 2 ; 3 ; 5 ; et de manière davantage préférée compris dans une plage de 2 - 20 litres, de préférence de 7,5 - 12,5 litres.
  5. Bouteille en plastique à paroi mince (1) selon au moins une des revendications précédentes, caractérisée en ce qu'elle est auto-pliable lorsqu'elle est placée à l'envers pendant son vidage et en ce qu'au moins certaines des rainures transversales et/ou nervures (6.1) sont équipées d'au moins 2, de préférence d'au moins 4, et de manière davantage préférée entre 4 et 8 éléments d'amorçage de pliage (6.2).
  6. Procédé d'emballage, en vue du stockage et du transport, de bouteilles à paroi mince (1) selon l'au moins une des revendications 1 à 5, dans lequel les bouteilles à paroi mince (1) sont empilées sur une palette (110) sur plusieurs niveaux (100), de préférence en intercalant au moins une plaque (120) entre deux niveaux successifs (100), chaque niveau (100) est attaché (130) et une pression axiale est exercée sur le dessus de la palette (110) de sorte à rétracter les dessus (2, 3, 4, 5) et/ou les structures inférieures (7) d'au moins certaines des bouteilles (1) à paroi mince palettisées.
EP12816478.7A 2012-12-28 2012-12-28 Récipient rétractable à paroi mince en matière plastique moulé par soufflage Active EP2938547B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12816478T PL2938547T3 (pl) 2012-12-28 2012-12-28 Chowany, formowany z rozdmuchiwaniem cienkościenny pojemnik z tworzywa sztucznego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/077070 WO2014101957A1 (fr) 2012-12-28 2012-12-28 Récipient à paroi mince en matière plastique moulé par soufflage rétractable

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EP2938547A1 EP2938547A1 (fr) 2015-11-04
EP2938547B1 true EP2938547B1 (fr) 2017-07-26

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EP (1) EP2938547B1 (fr)
CN (1) CN105008229B (fr)
AR (1) AR094282A1 (fr)
ES (1) ES2644249T3 (fr)
MX (1) MX361594B (fr)
PL (1) PL2938547T3 (fr)
WO (1) WO2014101957A1 (fr)

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US11299311B2 (en) 2017-03-24 2022-04-12 Toyo Seikan Co., Ltd. Synthetic resin container
FR3079503B1 (fr) 2018-04-03 2020-03-06 Societe Anonyme Des Eaux Minerales D'evian Et En Abrege "S.A.E.M.E" Bouteille a parois minces pour contenir un liquide alimentaire
FR3079502B1 (fr) 2018-04-03 2020-12-25 Sa Des Eaux Minerales Devian Et En Abrege S A E M E Bouteille a parois minces pour contenir un liquide alimentaire
IL268476A (en) * 2019-08-04 2021-03-01 Eliahu Yaakov Liquid dispenser
FR3101617B1 (fr) 2019-10-03 2022-03-25 Sa Des Eaux Minerales D’Evian Et En Abrege S A E M E Objet a tenir par un utilisateur, comprenant une coque et une bouteille

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Also Published As

Publication number Publication date
CN105008229B (zh) 2017-09-26
MX2015008453A (es) 2015-12-15
EP2938547A1 (fr) 2015-11-04
CN105008229A (zh) 2015-10-28
AR094282A1 (es) 2015-07-22
MX361594B (es) 2018-12-10
ES2644249T3 (es) 2017-11-28
PL2938547T3 (pl) 2018-01-31
WO2014101957A1 (fr) 2014-07-03

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