EP1765677A1 - Bouteille en plastique et procede pour y fixer une etiquette retrecissante - Google Patents

Bouteille en plastique et procede pour y fixer une etiquette retrecissante

Info

Publication number
EP1765677A1
EP1765677A1 EP05752640A EP05752640A EP1765677A1 EP 1765677 A1 EP1765677 A1 EP 1765677A1 EP 05752640 A EP05752640 A EP 05752640A EP 05752640 A EP05752640 A EP 05752640A EP 1765677 A1 EP1765677 A1 EP 1765677A1
Authority
EP
European Patent Office
Prior art keywords
bottle
neck
tapered part
film
section
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.)
Granted
Application number
EP05752640A
Other languages
German (de)
English (en)
Other versions
EP1765677B1 (fr
Inventor
Matteo Zoppas
Luca Marcadent
Fabio Salvador
Tiziano Pizzinat
Marco Leonardi
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.)
SIPA Industrializzazione Progettazione e Automazione SpA
Original Assignee
SIPA Industrializzazione Progettazione e Automazione SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SIPA Industrializzazione Progettazione e Automazione SpA filed Critical SIPA Industrializzazione Progettazione e Automazione SpA
Publication of EP1765677A1 publication Critical patent/EP1765677A1/fr
Application granted granted Critical
Publication of EP1765677B1 publication Critical patent/EP1765677B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • B65D1/023—Neck construction
    • 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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/08—Coverings or external coatings
    • B65D23/0842—Sheets or tubes applied around the bottle with or without subsequent folding operations
    • B65D23/0878—Shrunk on the bottle
    • 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

Definitions

  • the present invention relates to a plastic bottle, suitable to be covered with a sheet of shrinkable plastic material, and to a process to cover said bottle.
  • the external agents that cause worsening in the taste and nutritional properties of the content are oxygen and light, both ultraviolet and visible; for example, foods such as milk are particularly susceptible to the action of light, which even in just two days causes deterioration of the proteins which imparts a typical disagreeable flavour.
  • light especially at wavelengths ranging from 200 to 800 nm, causes the destruction of some vitamins typical of these foods.
  • bottles are commonly made of thermoplastic materials (such as PVC and PET) covered with a heat-shrinkable plastic film.
  • the film provides adequate barrier properties for gases such as oxygen and carbon dioxide and against physical agents such as ultraviolet and visible light. For example, it is often considered necessary to screen light with a wavelength ranging from 200 to 800 nm in particular.
  • gases such as oxygen and carbon dioxide
  • physical agents such as ultraviolet and visible light.
  • Different types of film are used. These can be films with several layers, for example co-extruded, of different thermoplastic materials or of the same material treated in different ways, for example a layer of expanded material and one or two layers of non-expanded material. Often the outermost layer is printable: in fact, the covering can have the functions of a label.
  • the covering film is shaped like a sleeve, for example by extrusion thereof directly in this shape or by joining two sides of a film in an appropriate way, for example by gluing or heat-sealing.
  • a cylinder of this film is suitably positioned around the bottle, for a height adequate for the covering to be obtained, for example by gluing the two edges of a film surrounding the body of the bottle.
  • the bottle has a lower part, also called body, with a more or less constant section except for projections or grooves, and an upper part which tapers towards the neck of the bottle.
  • the shrinkable film can also cover this part, providing the height of the film is adequate.
  • heat causes the film to shrink, adapting to the surface of the bottle, comprising the upper tapered part, if required.
  • heat for example hot air can be blown, for example at 250°C for 5 seconds, while the bottle is made to rotate.
  • Some plastic bottles have a body with a section which is not round, for example a quadrilateral section, with rounded edges; this type of bottle is appreciated, as well as for aesthetic reasons, also due to the fact that more bottles can be stored in a smaller space compared to bottles with a round section, containing the same volume of liquid.
  • the tapered part also usually has a similar section to the body and must be connected to the cylindrical neck of the bottle in a suitable way.
  • a problem with this type of bottle lies in the fact that the tapered part and the connection area are usually critical areas as regards adhesion of the shrinkable film. This is because, in the direction along the longitudinal axis of the bottle, usually an axis of symmetry, the length to be covered differs at the edges of the quadrilateral section with respect to the centre of the sides. This determines poor adhesion of the film in the part below the neck of the bottle, where shrinkage must be maximum, causing non-uniform thickness of the covering and the possible formation of creases.
  • the object of the present invention is to identify forms of plastic bottles having a body with a section which is not round, for example triangular or quadrilateral, which allows good adhesion of the covering also on the tapered part and also extending in proximity to the cylindrical neck, that is, in the areas above the body of the bottle.
  • a plastic bottle having a longitudinal axis, a body with a cross section which is not round, an essentially cylindrical neck, a tapered part starting from said body and interposed between said body and said neck, wherein the boundary between said body and the tapered part has convexities facing in a longitudinal direction towards said neck in the points in which it is at a minimum distance from said longitudinal axis, and facing in the opposite direction in the points in which it is at a maximum distance from said longitudinal axis.
  • said body has an essentially parallelepiped form, therefore with a base of a form which is not round.
  • the tapered part can be a parallelepiped with an essentially polygonal base, preferably quadrilateral, more preferably square and preferably with rounded edges.
  • the tapered part is a convex surface. It is preferably a surface of revolution about the longitudinal axis, or it can have a cross section similar in form to the cross section of the body, but less accentuated, at said boundary.
  • the invention therefore relates to a bottle, as described above, which allows perfect covering thereof with a heat-shrinkable film with uniform thickness and without the possible formation of creases in said film, and to a process to cover said bottle.
  • Figure 1 schematically represents a front view of a bottle according to the present invention.
  • Figure 2 schematically represents a view rotated through 45° with respect to the longitudinal axis of the bottle in Figure 1.
  • Figure 3 schematically represents a longitudinal sectional view of the detail in
  • Figure 2 enclosed in the circle A Figure 4 schematically represents a plan view of a bottle, sectioned at the cylindrical neck below the finish, according to a different aspect of the invention.
  • Figure 5 schematically represents a bottom view of a bottle according to the present invention.
  • Figure 1 shows a front view of a bottle according to the present invention. It has a longitudinal axis 1 , which, preferably, is essentially an axis of symmetry of the bottle; in the present description, unless otherwise specified, cross section is intended as a section according to a plane perpendicular to said axis 1 , while longitudinal section is a section according to a plane containing said axis 1.
  • the bottle comprises a body 2, as said with a cross section which is not round, in the case specified essentially squared (a certain convexity of the sides towards the outside is possible), with rounded edges. This can be appreciated by comparing
  • FIG. 1 with Figure 2, where rotation through 45° makes it possible to observe the maximum width D1 of the body 2, while in Figure 1 the minimum width D2 is shown.
  • the body 2 extends between a base 3, which closes it at the bottom and has a form and characteristics which can be of a known type, and the tapered part 5 from which it is delimited by the boundary 4, which can, for example, be a more or less rounded edge, a projection or a groove.
  • the cross section of the body 2 is preferably essentially constant along the axis 1. It is understood that in any case there may be narrowings or widenings due, for example, to grooves or projections, such as the grooves 6, or other elements, such as contoured areas to facilitate grip, writing or decorative elements, which are commonly found on plastic bottles.
  • the bottle has an essentially cylindrical neck 7, at the end of which is an opening 8 to gain access to the content.
  • There may be other structures such as the finish 9, a more or less flanged shaped annular projection which is usually provided around the neck of many types of plastic bottle, the thread 10 to allow screwing of a cap, and any others deemed suitable.
  • the tapered part 5 starts from the boundary 4, between the body 2 and the neck 7. According to a preferred aspect, this tapered part 5 has the form of a surface of revolution.
  • the convexities 12 can be shaped as a consequence of the radius of curvature of the edges 13 which are preferably rounded; they will tend to become cusps if the edges 13 are sharp.
  • the tapered part 5 is not a surface of revolution or at least not for its entire extension.
  • it can preferably have a cross section, at the area involved by the boundary 4, similar to the cross section of the body 2, for example essentially polygonal, in particular quadrilateral, with convex sides towards the outside and with rounded edges, although less accentuated, which means curvature of the sides, convex towards the outside, more marked and edges more rounded; this produces an intermediate form between the form of the cross section of the body 2 and a circular form.
  • the tapered part 5 can have an increasing inclination with respect to the axis 1 as it approaches the neck 7, that is being essentially convex, naturally with the exception of grooves or other elements as already mentioned for the body 2.
  • a concave and rounded connection area 15 between the neck 7 and the tapered part 5, is a concave and rounded connection area 15, with a radius of curvature R1.
  • Particularly advantageous results have been obtained with particular types of covering films for values of the radius of curvature R1 that are greater than zero and less than or equal to 8 mm.
  • a truncated cone shaped part 17 is produced in the variant of bottle in which the tapered part 5 has a form which is not a surface of revolution.
  • the truncated cone shaped part 17 is interposed between the tapered part 5 and the neck 7, or between the tapered part and the area 15.
  • Figure 4 represents a top view of a bottle with the tapered part 5 with a cross section similar to the section of the body 2, as described above.
  • the lower limit of the truncated cone shaped part 17 is indicated with the dashed line 16. It is observed that it can also have a form similar to the cross section "Of the tapered part 5, to allow connection.
  • said lower limit will have a maximum width D3 and a minimum width D4.
  • the following relation will be valid: 0.6 ⁇ (D2-D4)/(D1-D3) ⁇ 1.
  • the truncated cone shaped part 17 is preferably inclined so that a plane tangent thereto forms with the axis 1 an angle ⁇ ranging from 30° to 90°.
  • the point of maximum inclination of the tapered part 5 is immediately below the neck 7, or the area 15 if present, and is such that the plane tangent in that point, as shown in Figure 3, forms an angle ⁇ with the axis 1 ranging from 30° to 90°.
  • the tapered part 5 it is preferable, immediately below this point of maximum inclination, for the tapered part 5 to have a longitudinal section with a radius of curvature R2 below 15 mm, to obtain, in a very restricted area below the neck 7, a variation in the profile of the wall of the bottle from concave to convex, through a point of inflection coinciding with said point of maximum inclination, so as to essentially define an S-shape and therefore form a sort of "shoulder", which reduces the risk of the covering slipping, in consideration of the fact that there must be maximum shrinkage in this area.
  • the bottle can be produced in any thermoplastic material considered suitable, such as PVC, PET and the like, according to any known art, such as blow moulding.
  • the invention also relates to a bottle covered with a heat-shrinkable film.
  • the covering can include the body 2 and preferably all or part of the tapered part 5.
  • the tapered part 5, as described above, allows high-quality and uniform adhesion of the covering thereon, also for bottles the body of which is not circular, solving the problems indicated above.
  • the presence of the truncated cone shaped part 17 and/or the "shoulder" formed by the accentuated curvature of radius R2 below the neck 7, moreover, has the advantage of providing fixing for the covering if it extends up to the neck 7, preventing slipping or non-uniform tightness even in this critical area.
  • the covering can extend from the base 3 or in any case involve part of the rounded connection area 18 which joins the base 3 to the body 2, providing improved fixing, as is usually the case.
  • the covering can be made of a known thermoplastic material.
  • plastic materials which can be used can be polyolefins, polystyrenes and the like, with additives and pigments to provide barrier properties against light and atmospheric agents.
  • a film with three co-extruded layers can be used, wherein the intermediate layer is expanded polystyrene and the other layers are non-expanded polystyrene, the innermost of which is black and the outermost of which is printable.
  • the film can, for example, have a thickness of around 120 ⁇ m, with the inner expanded layer having a thickness of around 100 ⁇ m.
  • the film can be wound around the bottle and glued or sealed by two edges, to create a cylinder around the bottle, coaxial therewith for an adequate height. It is shrunk in a known way, for example using hot air. It is also possible to start with a cylinder of film pre-formed by extrusion. Those skilled in the art can easily make the choice of materials to employ to produce the bottle and the covering, and also of the process conditions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention concerne un corps (2) de bouteille en plastique à coupe polygonale à trois ou quatre côtés, avec une partie s'effilant (5) entre ledit corps (2) et le goulot (7) et avec une surface de forme de révolution ou de coupe semblable à celle du corps (2) mais moins accentuée. Cette bouteille se prête particulièrement bien à un recouvrement au moyen d'un film plastique thermo-rétrécissant.
EP05752640A 2004-06-16 2005-06-16 Bouteille en plastique et procede pour y fixer une etiquette retrecissante Not-in-force EP1765677B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000294A ITRM20040294A1 (it) 2004-06-16 2004-06-16 Bottiglia di plastica e processo di apposizione di una etichetta restringente su di essa.
PCT/EP2005/052799 WO2005123518A1 (fr) 2004-06-16 2005-06-16 Bouteille en plastique et procede pour y fixer une etiquette retrecissante

Publications (2)

Publication Number Publication Date
EP1765677A1 true EP1765677A1 (fr) 2007-03-28
EP1765677B1 EP1765677B1 (fr) 2008-12-24

Family

ID=34956414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05752640A Not-in-force EP1765677B1 (fr) 2004-06-16 2005-06-16 Bouteille en plastique et procede pour y fixer une etiquette retrecissante

Country Status (10)

Country Link
US (1) US20080047923A1 (fr)
EP (1) EP1765677B1 (fr)
JP (1) JP2008502542A (fr)
CN (1) CN1968855A (fr)
AT (1) ATE418499T1 (fr)
CA (1) CA2569812A1 (fr)
DE (1) DE602005011973D1 (fr)
IT (1) ITRM20040294A1 (fr)
RU (1) RU2007101369A (fr)
WO (1) WO2005123518A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008057402A1 (de) * 2008-11-14 2010-05-20 Krones Ag Schrumpffähiges Etikett und Verfahren zum Etikettieren von Behältnissen
IT1399272B1 (it) * 2010-04-06 2013-04-11 Soremartec Sa "procedimento per realizzare contenitori e relativo contenitore"
FR2961180B1 (fr) * 2010-06-11 2013-06-07 Sidel Participations Recipient comprenant un fond voute nervure
US20140001183A1 (en) * 2010-09-17 2014-01-02 Nestec Sa Container for retention of shrink wrap
MY163563A (en) * 2010-11-18 2017-09-29 Kao Corp Labeled container
JP6044210B2 (ja) * 2012-09-12 2016-12-14 東洋製罐株式会社 合成樹脂製ボトル
USD741186S1 (en) * 2014-04-24 2015-10-20 Societe Des Produits Nestle Sa Plastic container
USD756233S1 (en) * 2014-08-13 2016-05-17 Quimica Goncal S.A. De C.V. Twist top pet bottle for softener
KR102523339B1 (ko) 2014-12-08 2023-04-21 다이니폰 인사츠 가부시키가이샤 복합 프리폼, 복합 용기, 복합 프리폼, 플라스틱제 부재 및 복합 용기의 제조 방법
USD802425S1 (en) * 2015-11-09 2017-11-14 Cj Cheiljedang Corp. Bottle
JP2017114544A (ja) * 2015-12-25 2017-06-29 アサヒ飲料株式会社 プラスチックボトルおよび飲料品
USD802424S1 (en) * 2016-01-13 2017-11-14 Cj Cheiljedang Corp. Bottle
JP6288223B2 (ja) * 2016-11-30 2018-03-07 大日本印刷株式会社 プラスチックボトル、及び充填体

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USD277459S (en) * 1982-11-26 1985-02-05 Smithkline Beckman Corporation Bottle cap
FR2576283B1 (fr) * 1985-01-18 1989-10-13 Applic Plastiq Ste Bourgui Bouteille en matiere plastique
JP2737865B2 (ja) * 1993-04-06 1998-04-08 株式会社吉野工業所 合成樹脂製壜体
JP3388885B2 (ja) * 1994-07-04 2003-03-24 株式会社吉野工業所 筒状容器
US5605230A (en) * 1994-10-11 1997-02-25 Elr, Inc. Sealed label having anti-counterfeit construction
USD387278S (en) * 1995-10-03 1997-12-09 The Coca-Cola Company Bottle
US6105800A (en) * 1997-10-10 2000-08-22 Owens-Brockway Plastic Products Inc. Blown plastic containers with threads
USD457437S1 (en) * 1999-11-02 2002-05-21 The Coca-Cola Company Bottle with closure
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Also Published As

Publication number Publication date
RU2007101369A (ru) 2008-07-27
US20080047923A1 (en) 2008-02-28
JP2008502542A (ja) 2008-01-31
ATE418499T1 (de) 2009-01-15
WO2005123518A1 (fr) 2005-12-29
CA2569812A1 (fr) 2005-12-29
EP1765677B1 (fr) 2008-12-24
ITRM20040294A1 (it) 2004-09-16
CN1968855A (zh) 2007-05-23
DE602005011973D1 (de) 2009-02-05

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