EP0524918B1 - Emballage gerbable pour produits liquides ou pulvérulents, à goulot fixe - Google Patents

Emballage gerbable pour produits liquides ou pulvérulents, à goulot fixe Download PDF

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Publication number
EP0524918B1
EP0524918B1 EP92870108A EP92870108A EP0524918B1 EP 0524918 B1 EP0524918 B1 EP 0524918B1 EP 92870108 A EP92870108 A EP 92870108A EP 92870108 A EP92870108 A EP 92870108A EP 0524918 B1 EP0524918 B1 EP 0524918B1
Authority
EP
European Patent Office
Prior art keywords
bottle
box
packaging according
packaging
transverse wall
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.)
Expired - Lifetime
Application number
EP92870108A
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German (de)
English (en)
French (fr)
Other versions
EP0524918A1 (fr
Inventor
Carlo Della Riva
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.)
Incoplas N V SA
Original Assignee
Incoplas N V SA
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 Incoplas N V SA filed Critical Incoplas N V SA
Publication of EP0524918A1 publication Critical patent/EP0524918A1/fr
Application granted granted Critical
Publication of EP0524918B1 publication Critical patent/EP0524918B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank
    • B65D77/065—Spouts, pouring necks or discharging tubes fixed to or integral with the flexible container
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00—Envelopes, wrappers, and paperboard boxes
    • Y10S229/915—Stacking feature

Definitions

  • the present invention relates to a packaging for liquid or pulverulent products suitable in particular for food products and chemicals.
  • Metal and glass containers are much less used than in the past: they are generally heavy, allow little variation in shape and are relatively expensive.
  • the glass containers are also breakable, which is a major drawback; metal containers are easily irreversibly deformed in the event of a fall.
  • the plastic containers be as light as possible.
  • plastic packaging has gradually evolved into forms better suited to the characteristics of the material, these forms making it possible to optimize the resistance to vertical compression, the limit given by an invisible and non-permanent deformation of the packaging.
  • the milk carton type plasticized cardboard boxes save space during transport and storage. They contain a small amount of plastic and occupy a reduced volume in the garbage after use, provided that care is taken to flatten them.
  • the method of opening milk carton boxes is as follows: the user must raise a folded part on top of the box and folded down on the sides and cut a corner. As long as the cut is not carried out correctly, which happens frequently, there is an overflow of milk as soon as the user takes the brick in hand to pour the contents. After opening, there are no plans to be able to close this type of packaging.
  • packaging For the packaging of liquid detergents, packaging has recently been developed which consists of a combination of cardboard and plastic sheets which can, in certain cases, be closed after each withdrawal of product.
  • Another type of packaging known on the market and intended for liquid detergents allows easier pouring of the product. It is a package consisting of a cardboard sheet which is given the shape of a box, in which a sheet of plastic material welded in the form of a bag is glued in many places. The upper wall of this packaging is perforated, from manufacture, in an off-center manner. A neck secured to the cardboard and the plastic sheet is placed at the location of the hole provided on the top of the box. The opening, closing and pouring of the product are relatively easy. It is nevertheless observed in practice that, in particular because of the rectangular shape of the box, it is also practically impossible to empty it.
  • US Patent 4,143,718 describes a package comprising a container surrounded by a cardboard box.
  • the design of the carton is such that it is impossible to fill the container while it is mounted on a conventional filling line. It is necessary either to fill the internal container beforehand (which in this case must be relatively rigid by itself, like a glass bottle), or to decompose the folding of the cardboard into two partial folds, which complicates the apparatus of the chain. Once the packaging is finished, the neck is only accessible by tearing off part of the carton.
  • Application GB-2 228 725 describes a package according to the preamble of claim 1, consisting of a plastic container surrounded by a carton.
  • the container opening is set back from the upper side of the carton so as not to protrude from it.
  • the orifice of such a container explicitly intended to contain corrosive liquids, is connected for emptying to a pumping device. In this case, there is no problem of pouring.
  • the object of the invention is to provide a packaging for liquid or pulverulent products, composed of cardboard and of a small quantity of plastic material with regard to the capacity of the packaging, which allows total separation of its components which can be sorted. before being discarded, allowing selective collection and recycling of components.
  • An object of the invention is to provide a packaging for liquid or pulverulent products which occupies as small a volume as possible after use of the product.
  • An important object of the invention is to provide a packaging which has a total weight not exceeding that of a traditional bottle.
  • the invention also aims to provide packaging for liquid or pulverulent products easily stackable and palletizable, without risk of deformation or rupture of neck, and having a configuration such as the ratio of the volume occupied by the size of the packaging to volume of packaged product is close to the value 1, and this while retaining the characteristics of good resistance to vertical compression presented by traditional plastic bottles.
  • Another object of the invention is to provide a packaging for a liquid product composed of cardboard and plastic which can be manufactured on traditional machines, and filled on filling lines traditionally used for filling bottles.
  • Another object of the invention is to provide a packaging for liquid or pulverulent products which makes it possible to easily pour the product contained, preventing any overflow thereof, which can be opened and closed easily after use, and which above all allows use of the entire product, so as to avoid any waste, and any mixture of product residues with other household or industrial waste.
  • Another aim is to reduce the manipulations imposed on the user.
  • a final object of the invention is to provide packaging for liquid or pulverulent products with which the risk of leaks is reduced.
  • the subject of the invention is a packaging according to claim 1.
  • the cardboard box according to the invention is formed from a single cardboard blank.
  • the extensions of the side walls and the transverse wall are formed by a double fold of the cardboard blank, the first fold constituting the upper edge of the extensions of the side walls, and the second fold constituting the junction between the transverse wall and the extensions of the side walls.
  • the protective element of the neck further comprises a bucket capable of being engaged on the inner periphery of the transverse wall of the box.
  • the bucket has vertical sections engaged in friction against the side walls of the protective enclosure.
  • one of the extensions (which cannot be that comprising the knife lines) comprises a window capable of forming a handle.
  • This window is delimited by cutting lines and a folding line constituting a hinge.
  • the cardboard piece located between the cutting lines and the hinge is foldable so as to leave an opening of dimension such that four fingers can be inserted therein.
  • the extension comprising the window is situated opposite that comprising lines of knives, this in the case where the box has an even number of side walls.
  • the neck of the bottle is provided, at least over part of its height, with means which can cooperate with the transverse wall of the box to ensure the maintenance of the neck. outside of this box when the neck is engaged in the transverse wall.
  • These means may consist of a collar which surmounts the lower part of the collar.
  • the cardboard box can possibly be devoid of bottom (on the side opposite to the transverse wall in which an opening is made).
  • This box can however normally be provided with such a bottom, on which the bottom of the bottle can bear.
  • This bottom may possibly be incomplete and formed, for example, of the edges of the side walls folded inwards at the bottom of the box, the width of these edges being such that an opening remains in the middle of this bottom of the box.
  • the body of the bottle has sufficient flexibility for it to substantially match the side walls of the box.
  • the neck of the bottle is threaded and the cap is threaded correspondingly.
  • the neck of the bottle is provided, at its lower part, with means which cooperate with the transverse wall to ensure the rotational locking of the neck (and therefore of the whole bottle) when said neck is engaged in the opening of the transverse wall.
  • the lower part of the neck and the edges of the opening can be notched. They can also have a shape which is not circular, for example an oval, elliptical or polygonal shape. We will successfully use hexagonal, octagonal, square or even triangular shapes.
  • the opening in the transverse wall of the box has dimensions such that the edge of this opening laterally encloses the neck and thus keeps the bottle in place.
  • the body of the bottle of the packaging according to the present invention is furnished, over at least part of its height and at least part of its periphery, with stiffening means, for example grooves and ribs which can be arranged either axially, radially, or by a combination of the two.
  • stiffening means for example grooves and ribs which can be arranged either axially, radially, or by a combination of the two.
  • the bottle may have substantially a circular shape, or a rectangular shape with rounded corners or any other desired shape.
  • the box can be cylindrical or prismatic.
  • a particularly interesting material for the manufacture of the bottle is polyethylene, but it is also possible to use poly (ethylene terephthalate), polypropylene or other recyclable or incinerable plastics without release of harmful gases.
  • polyethylene is advantageous for more than one reason since it is particularly well recyclable.
  • the packaging comprises a cup
  • the bottom of this cup is flush with the upper end of the enclosure.
  • the bottle of the packaging of the invention will generally not be self-supporting.
  • the packaging of the invention is not heavier than a traditional bottle of the same capacity and allows the use of up to three times less plastic material.
  • the cardboard box Because the external presentation of the packaging of the invention is ensured by the cardboard box, it can be used for the manufacture of the bottle light, plastic waste from the process of manufacturing conventional packaging. It is thus possible to manufacture a monolayer bottle entirely of recovered plastic material. Its lightness, consistency and properties will be identical to that of a bottle made from virgin material. Only its appearance will be modified, for example in the case where the plastic material recovered comes from screen printing waste, which brings about a change in the color of the bottle.
  • the coextrusion technique now makes it possible to produce multilayer bottles, with the aim of recycling the plastic material contaminated by products and coming from recovered waste.
  • it is essential to prevent the material, which has been potentially contaminated and no longer offering the guarantees of purity commonly required for all packaging, from being separated from the content by a layer of virgin plastic intended for avoid contact between the recycled and potentially contaminated material and the contents of the packaging.
  • a third layer of material, sandwiched between the first two, will allow the incorporation of waste from the manufacture of the packaging itself (waste can represent 50% of the net weight of a handle bottle, for example) and the use of genuinely recycled material, that is to say contaminated and coming from refuse ("post-consumer" recycling).
  • the invention makes it possible to increase the proportion of recycled material by eliminating the presentation layer, which becomes useless since it is the cardboard box which ensures the packaging looks good.
  • the bottle is effectively protected from light by the cardboard box until the product has been used.
  • These packaging therefore allow the use of plastics which are very rapidly degradable under the effect of light, that is to say UV radiation.
  • the degradation of the plastic material begins when the bottle is exposed to light, that is to say as soon as it is separated from the box, either deliberately or by the natural decomposition of the cardboard.
  • Figs. 1 to 3 show a packaging for liquid or pulverulent products according to the invention, designated under the general reference 1.
  • This package 1 consists of a cardboard box 2 of square section and a bottle 3.
  • a cardboard box 2 of square section for ease of reference, there is shown in FIG. 1, the bottle 3 in elevation and the box 2 in section. In Fig. 2, only the upper part of the box is shown.
  • the box 2 has a bottom 4, four side walls 5, a transverse wall 6 and an enclosure 7.
  • a circular opening 8 is formed in the transverse wall 6.
  • the enclosure 7 consists of the extensions 9, 10, 11 of the side walls 5 above the level of the transverse wall 6.
  • the bottle 3 is made of polyethylene; it has a bottom 12, a body 13 of substantially circular cross-section, and a neck 14. This extends in height until the start of the threading (shown in FIG. 4) of the threaded neck 15, on which is screwed a threaded plug 16.
  • the upper edge of the enclosure 7 exceeds the upper edge of the plug 16. This gives the enclosure 7, when the packaging is stored, a protective function for the neck 15.
  • the extension 9 of one of the side walls 5 comprises a window 17 of elongated shape.
  • This window 17 is delimited by a straight fold line constituting a hinge 18 and cutting lines 19.
  • the cardboard piece 20, located between the cutting lines 19 and the hinge 18, can be folded down and then constitutes an opening forming a handle so large that the four fingers of one hand can be inserted into it.
  • the extension 10, opposite the extension 9, comprises oblique knife lines 21 and a line of knives 22 horizontal, joining the two knife lines 21.
  • These knife lines 21, 22 allow the user to detach a piece of cardboard 23 of trapezoidal shape. This ablation makes possible and even extremely convenient the pouring (and, in particular, the dosage) of the product contained in the bottle.
  • the body 13 of the bottle 3 has a thickness of about 0.2 mm. As seen in Fig. 4, when the bottle 3 is empty, it can easily be separated from the box 2, to which it is not attached either by gluing or by welding or in any other way. It can then be rolled by hand like a toothpaste tube, which allows it to occupy a very small volume in the waste.
  • Box 2 can be flattened like any cardboard box.
  • the bottle 3 occupies, relative to the box 2, a position in which its content can be poured (when the piece of cardboard 23 has been detached) and in which it can be stored and transported, without risk of deformation of the neck. It can then be treated as a simple bottle and in particular be filled on traditional filling lines for bottles.
  • the neck 14 is divided into three distinct elements along its height: the lower part 24, the collar 25 and the upper part 26.
  • the collar 25 is supported on the transverse wall 6 and maintains the bottle 3 so that the lower part 24 of the neck 14 is permanently engaged in the opening 8 of the transverse wall 6. It can be locked therein in rotation, by example thanks to a notching (not shown) of the edges of the opening 8 and of the lower part 24 of the neck 14. It is also possible to give the opening 8 and the neck 14 an oval shape.
  • the opening 8 of the transverse wall 6 has a diameter such that it encloses the lower part 24 of the col 14.
  • Fig. 3 shows that the bottle 3 substantially marries the side walls 5 of the box 2.
  • Its body 13 has, over its entire periphery, a wavy shape, thus forming a succession of grooves 27 and ribs 28 arranged in the axial direction (vertical) . It is also possible to provide smooth zones corresponding to the central part of each side wall.
  • the body 13 of the bottle 3 has, in the corresponding zone, a slightly smaller section than in the other parts, so as to counteract the appearance of such swelling. This characteristic is of course not apparent when the bottle 3 is filled.
  • Fig. 5 shows the blank of the carton from which the box 2 is made.
  • This blank has four rectangular sides 50, 51, 52 and 53 defined by the fold lines AB, CD, EF, GH and the cut line IJ, all parallel to each other and the fold lines BJ and AI also parallel to each other.
  • a bonding tab 54 bordered by the fold line AB and the cut line KL (these lines being parallel to each other), makes it possible to join the pan 50 to the pan 53.
  • the fold lines AB, CD, EF and GH extend beyond points B, D, F and H by cut lines which define sticky tabs 55, 56, 57 and 58 adjoining the sides 50, 51 respectively. 52 and 53.
  • the cardboard blank also has tabs 59, 60, 61 and 62, respectively adjoining the sides 50, 51, 52 and 53, on the side opposite to the sticky tabs 55, 56, 57 and 58.
  • These tabs 59, 60, 61 and 62 have a width slightly less than the width of the sides 50, 51, 52 and 53.
  • Each leg 59, 60, 61 and 62 has a fold line, respectively MN, OP, QR and ST, parallel to the line AI, and delimiting, respectively for each leg 59, 60, 61 and 62 a rectangular section 63, 64 , 65 and 66 and areas 67, 68, 69 and 70 of various shapes.
  • the areas 67, 68, 69 and 70 are intended to form, during the mounting of the box 2, the transverse wall 6.
  • the rectangular panels 63, 64, 65 and 66 are intended to be folded over the panels 50, 51, 52 and 53 and to be glued there.
  • the sides 63, 64, 65 and 66 and the part on which they are glued, are intended to form, during the assembly of the box 2, the enclosure 7, that is to say the extensions 9, 10, 11 side walls 5.
  • Areas 67, 68, 69 and 70 each have a cutout forming a circle or a part of a circle, capable of forming, during assembly of the box 2, the circular opening 8.
  • the area 68 includes an oblique line of knives O′U delimiting a bonding area 71 on its front side.
  • the area 67 has, on its front side, a bonding zone 72 corresponding to the zone 71 and intended to be bonded thereto.
  • the area 70 comprises an oblique line of knives S′V delimiting, on its recto face, a bonding zone 73.
  • the area 69 comprises, on its recto face, a bonding zone 74 corresponding to the zone 73 and intended to be stuck there.
  • the rectangular panel 63 comprises two lines of oblique knives 21 joining the fold lines MN and AC as well as a line of knives 22 disposed along the fold line MN.
  • the upper part of the rectangular pan 50 comprises two lines of oblique knives 21 and a transverse line of knives 22 joining the two lines of knives 21.
  • the knife lines 21 and 22 of the sides 50 and 63 delimit, after folding the tab 59 on the side 50, a piece of cardboard 23, double, detachable, and of trapezoidal shape intended to form, after tearing, a notch facilitating the pouring.
  • the rectangular panel 65 comprises a cutout 75 of elongated shape.
  • the panel 52 comprises, in a symmetrical manner with respect to the fold line EG, a window 17 of the same shape.
  • the window 17 comprises a straight fold line constituting a hinge 18, a cut line 19 and a piece of foldable cardboard 20.
  • the first step in mounting the box is to fold the bonding areas 71 and 73 along their respective knife line O′U, S′V.
  • the panels 63, 64, 65 and 66 are then folded over the rectangular panels 50, 51, 52 and 53 by rotation around the fold line AI.
  • the panels 63, 64, 65 and 66 are glued to the corresponding zones of the panels 50, 51, 52 and 53.
  • the tab 62 is cut so that it does not overlap (when it is folded over the panel 53) the bonding area of the pan 53 with the bonding tab 54.
  • the legs 59, 60, 61 and 62 being narrower than the rectangular sections 50, 51, 52 and 53, the fold lines AB, CD, EF and GH are not covered and remain free over their entire length.
  • the legs 59, 60, 61 and 62 are then folded, rotating 90 ° around their respective fold lines MN, OP, QR and ST.
  • the front face of the bonding tab 54 is glued to the back face of the pan 53, along its edge IJ.
  • the bonding area 71 is bonded to the area 72 and zone 73 to zone 74, the box 2 is then completely assembled.
  • the sticky tabs 55, 56, 57 and 58 will be assembled and glued in a conventional manner, after introduction of the bottle 3 into the box 2.
  • Figs. 6 and 7 show another embodiment of a package 101 according to the invention.
  • a box 102 of rectangular section contains a bottle 103.
  • An opening 104 of hexagonal shape is made in the transverse wall 105.
  • the packaging 101 also includes a cup 106.
  • the cup 106 has a bottom 107, side walls 108.
  • the side walls 108 of the cup 106 rest on the periphery of the transverse wall 105
  • the protective element of the neck 7 encloses the lower part of the side walls 108 of the bucket 106, and thus ensures good stability of this bucket.
  • the side walls 108 of the cup 106 have a height equal to or greater than the part of the bottle 103 (neck 112, neck 113 and stopper 16) which is located outside the box 102.
  • the free end of the side walls of the cup 106 is enclosed by the enclosure, which provides the bucket 106 with good stability.
  • the bottle 103 (and more particularly its neck 112 and its neck 113) is protected both by the cup 106 and by the protective element 7.
  • the cup can serve both as protection and, for example, as a dosing container for the product contained in the bottle 103.
  • the walls of this cup can be made as light as possible or, on the contrary, be designed to take up a large part of the stresses vertical applied during stacking of packaging.
  • the body 115 of the bottle 103 has a substantially rectangular section with rounded corners and is furnished, over its entire height and over its entire periphery, with grooves 116 and ribs 117. It substantially matches the shape of the side walls 111 of the box 102.
  • the neck 112 of the bottle 103 has a lower part 118 of hexagonal shape which cooperates with the edges of the opening 104, so that the bottle 103 is wedged in rotation in the box 102.
  • the purpose of wedging in rotation is above all to avoid, during the screwing of the cap 16, a torsion of the body 115 of the bottle 103 in the case of bottles having a non-circular section.
  • the bottle 103 is also wedged in height thanks to the collar 119 which bears on the transverse wall 105.
  • bottles in substance of cylindrical shape, can be adapted as well to cylindrical boxes as to boxes of square, hexagonal or octagonal section, for example.
  • Bottles can be made with the body lined with horizontal grooves, or a combination of horizontal and vertical grooves, or bottles stiffened with diamond-shaped relief patterns, or even smooth bottles.
  • the shapes of the neck of the bottle and the opening made in the transverse wall of the box can be chosen as required, and independently of the shape chosen for the box and the bottle of the packaging.
  • the opening of the transverse wall of the box can have a polygonal shape, for example, hexagonal.
  • the lower part of the neck of the bottle has a corresponding shape. there is no collar, but the lower part is surmounted by a smooth zone corresponding to the thickness of the cover, this smooth zone itself being surmounted by an upper part of the neck having the same polygonal shape and the same dimensions as the lower part, but with an angular offset relative to the latter so that, when the lower part is engaged in the opening of the transverse wall, the bottom of the upper part bears on the transverse wall, thus ensuring a blocking in height.
  • This embodiment has the advantage of keeping the edges of the opening perfectly intact.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP92870108A 1991-07-25 1992-07-24 Emballage gerbable pour produits liquides ou pulvérulents, à goulot fixe Expired - Lifetime EP0524918B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9100700 1991-07-25
BE9100700A BE1004257A5 (fr) 1991-07-25 1991-07-25 Emballage gerbable pour produits liquides ou pulverulents, a goulot fixe.

Publications (2)

Publication Number Publication Date
EP0524918A1 EP0524918A1 (fr) 1993-01-27
EP0524918B1 true EP0524918B1 (fr) 1994-10-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP92870108A Expired - Lifetime EP0524918B1 (fr) 1991-07-25 1992-07-24 Emballage gerbable pour produits liquides ou pulvérulents, à goulot fixe

Country Status (8)

Country Link
US (1) US5228589A (es)
EP (1) EP0524918B1 (es)
AT (1) ATE112745T1 (es)
BE (1) BE1004257A5 (es)
CA (1) CA2074558A1 (es)
DE (2) DE69200522D1 (es)
ES (1) ES2038101T1 (es)
GR (1) GR930300041T1 (es)

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US5076471A (en) * 1990-05-07 1991-12-31 Fabricated Metals, Inc. Bulk material container having a flexible liner with a follower

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CA2074558A1 (en) 1993-01-26
ATE112745T1 (de) 1994-10-15
DE69200522D1 (de) 1994-11-17
EP0524918A1 (fr) 1993-01-27
GR930300041T1 (en) 1993-06-07
ES2038101T1 (es) 1993-07-16
US5228589A (en) 1993-07-20
DE524918T1 (de) 1993-07-08
BE1004257A5 (fr) 1992-10-20

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