EP0890518A1 - Carton pour des matériaux granulaires, flan et son procédé de fabrication - Google Patents

Carton pour des matériaux granulaires, flan et son procédé de fabrication Download PDF

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Publication number
EP0890518A1
EP0890518A1 EP97202128A EP97202128A EP0890518A1 EP 0890518 A1 EP0890518 A1 EP 0890518A1 EP 97202128 A EP97202128 A EP 97202128A EP 97202128 A EP97202128 A EP 97202128A EP 0890518 A1 EP0890518 A1 EP 0890518A1
Authority
EP
European Patent Office
Prior art keywords
flap
panel
carton
edge
top panel
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.)
Withdrawn
Application number
EP97202128A
Other languages
German (de)
English (en)
Inventor
Paulus Antonius Augustinus Hoefte
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to EP97202128A priority Critical patent/EP0890518A1/fr
Priority to PCT/US1998/014384 priority patent/WO1999002411A1/fr
Priority to ARP980103346 priority patent/AR016316A1/es
Publication of EP0890518A1 publication Critical patent/EP0890518A1/fr
Withdrawn legal-status Critical Current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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/5415—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in one or more closure flaps and in the container body so as to form after rupture a lid hinged to a side edge of the container body
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/0227—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward folding of flaps and securing them by heat-sealing, by applying adhesive to the flaps or by staples
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4212—Information or decoration elements, e.g. content indicators, or for mailing
    • B65D5/4233—Cards, coupons, labels or the like formed separately from the container or lid
    • B65D5/4237—Cards, coupons, labels or the like formed separately from the container or lid located in a compartment formed by a container wall and additional panel or panels formed integrally with the container
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/542—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in the container body
    • B65D5/5435—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in the container body and defining after rupture a lid hinged to the side edge of the container body

Definitions

  • the invention relates to carton board containers for granular materials and more particularly to such containers which are side-fill and sift-proof.
  • Typical containers made from carton board also simply called cartons, have a substantially parallelepipedal shape with six sides and twelve edges, namely the top, bottom, back, front, left and right sides, the edges being defined by the two sides of which they are the intersection, for example the back/top edge.
  • the top and bottom sides are in the horizontal plane, the four other sides being vertical.
  • the left side is on to the left of the observer and the right side on to the right of the observer, the back side being invisible for the observer.
  • the present invention relates to a carton, the carton comprising top and bottom sides opposing each other, left and right sides opposing each other, and front and back sides opposing each other, whereby:
  • Such cartons are usually folded and glued from a die cut.
  • a die cut, or blank is a flat structure which has not been folded or glued.
  • At least three main steps appear in the folding-gluing-filling process.
  • the die cut is folded and glued to form a sleeve.
  • a sleeve is substantially a four sided structure structured like a six sided carton of which two opposite sides are not folded or glued.
  • four of the twelve edges of the carton have been folded, these four edges being in a parallel direction to each other. It should be noted that usually the remaining eight edges all have their direction in a plane perpendicular to the direction of the four folded ones.
  • the sleeve structure has the advantage that it can be flattened. As a consequence, sleeves can be stored or shipped easily.
  • a second main step the carton is erected from the sleeve, which means that one of the two opposite sides which were not folded and glued during the sleeve step is now folded, four more edges being consequently formed. At this stage, the carton cannot be flattened anymore. However, it can be filled through the last non folded side. In the last step, the last non folded side is folded and glued, so forming the four last edges.
  • the structure goes through successive stages, namely the die cut, followed by the sleeve, which subsequently is formed into an erected carton, before the closed carton stage. Each of these stages is separated by one main folding-gluing step.
  • the sleeve In the first way of forming the sleeve, the sleeve will be formed of the front, left, back and right sides, or of any circular permutation of these, while the top and bottom sides will be left opened.
  • the carton In this case, the carton is usually erected by folding the bottom, and then by folding the top after filling. This way avoids having to turn the carton around after the filling process when the filling is made thanks to gravity, because the carton is already upright when filled.
  • the sleeve will be formed, for example, of the front, top, back and bottom sides, or of any circular permutation of these, while the left and right sides will be left opened.
  • the carton is erected by folding indifferently the left or the right side, the left for example, the erected carton being filled through the right side, which should consequently be at the top of the carton during filling.
  • the carton will be closed. After closing, the carton may have to be turned around in upright position, with the top side on the top.
  • the present invention relates to a process, the process comprising the steps of erecting a sleeve to a carton and closing the carton, whereby:
  • the eight edges which are not being folded to form the sleeve have their direction in a plane perpendicular to the direction of the four edges folded to form the sleeve.
  • the four sleeve folded edges are in one direction and the eight others in the substantially perpendicular direction.
  • the direction of the eight edges is called the main folding direction or axial direction because most of the folding is made along this direction.
  • the other direction is the transverse direction. Normally, the four edges of the transverse direction should be the sleeve forming edges.
  • the front/left, left/back, back/right and right/front edges would be along the transverse direction
  • the front/top, top/back, back/bottom and bottom/front edges would be along the transverse direction
  • a die cut is preferably made from a single piece for costs reasons.
  • a die cut normally has a specific grain direction. This means that the material forming the die cut is not isotropic but has a preferred direction along which the die cut can be folded more easily. This direction is the grain direction. For easy folding, it is important that the main folding direction be in the grain direction.
  • the grain direction is not horizontal, and preferably vertical, when the carton in its upright position.
  • the direction of gravity should be the grain direction for the front, back, left and right sides of the carton when the carton is upright, or that the edges front/left, left/back, back/right and right/front should follow the grain direction. Consequently, the edges front/left, left/back, back/right and right/front should not be in the transverse direction on the die cut.
  • Cartons folded in such a manner are usually called side fill cartons. It should be noted that this denomination is due to the folding method, and is not directly linked to the grain direction.
  • top fill cartons examples of side fill cartons are disclosed in the pending application JP-09066927, published on the 11 th of March 1997. Indeed, the other type of cartons obtained with the first way of folding the sleeve, so-called top fill cartons, usually require an internal liner for improving stiffness and strength, in particular in case of stacking.
  • the side fill carton disclosed in JP-09066927 includes an inner top panel and fourth left and right flaps together with a back flap associated with an edge to the inner top panel as well as a lid which can be re-closed.
  • the inner top panel provides extra robustness for the top side because the top side is formed of a double panel.
  • the inner top panel also contributes to avoid sitting prior to opening because the inner top panel lies on the top edge of the front, left and right sides of the carton and is hold in this position.
  • the inner top panel is hold in this position prior to opening on its four edges because the inner top panel is associated with an edge to the front pane!, with another edge to the back flap and with the two remaining edges to the left and right four flap.
  • the content cannot escape the carton through the top/front edge because it is made of a folding line.
  • the content cannot escape the carton from the top/back edge because the back flap is glued all along the back panel.
  • the content should not escape through the left/top and right/top edges because the fourth left and right flaps are glued so that the inner top panel lies tight on the top edges of the left and right sides.
  • this carton is a side fill carton
  • the tear strip is not along the grain direction on the die cut, which means that it is more solid and can consequently be more easily removed.
  • the tear strip mechanism is known for top fill cartons but in this case it follows the grain direction, so that it usually needs to be reinforced, with a plastic tape for example, to avoid breaking.
  • the present invention relates to a die cut, the die cut having a first direction and a second direction, the second direction being substantially perpendicular to the first direction, the die cut comprising:
  • the present invention provides a side fill carton in a manner to satisfy the aforementioned needs.
  • the carton of the invention is characterised in that at least one of the first (7), second (8) or third (9) left flaps is folded over the fourth left flap (10) and at least one of the first (7'), second (8') or third (9') right flaps is folded over the fourth right flap (10').
  • a die cut for a carton is provided, the die cut being characterised in that the fourth left flap (10) has a part longer than the fifth left flap (11) and the fourth right flap (10') has a part longer than the fifth right flap (11').
  • a process is provided, the process being characterised in that at least one of the first (7), second (8) or third (9) left flaps is folded over the fourth left flap (10) and at least one of the first (7'), second (8') or third (9') right flaps is folded over the fourth right flap (10').
  • the carton of the present invention is preferably made of cardboard or corrugated board, but other materials could also be used. Such cartons are usually used for housing granular materials.
  • the cartons normally have a parallelepipedal shape with six sides.
  • the sides can be defined as a top, bottom, left, right, back and front sides.
  • the top side is on the top of the carton when the carton is in its upright position, the bottom side being opposite to the top side.
  • the front and back sides are opposing sides and the left and right side are opposite sides as well.
  • Each of these sides can be made of several layers of material.
  • Each of the sides is usually of a substantially rectangular shape, each side being limited at its borders by four edges.
  • the structure of the carton is due to links which can exist between different layers of different sides through the edges.
  • this layer may be linked to the left side through the edge between the two sides, the link and the edge being provided by a folded line or/and by glue.
  • the layers which compose the sides of the carton may be of different sorts. If such a layer is covering a complete side, it is called a panel, and is said as corresponding to the side it covers. When a layer covers a side only partially, it is called a flap, and it is said that it corresponds to the side it covers. However, a flap may be extended up to the panel size, in which case it is a long flap. Long flaps are particularly used for contributing to the rigidity of the structure.
  • Flaps and panels can also comprise cut outs allowing use of a minimum amount of materials.
  • Panels or flaps can be said as associated to another layer, which means that they have a side in common with this layer through a folded line or score line, in doing so describing an edge of the carton.
  • Each side may comprise one or more panels, one or more flaps, or a combination of these.
  • the panels may have in their denomination the name of the side of which they cover the surface, for example the bottom panel (3) corresponds to the bottom side, their position being given in their denomination if several panels are corresponding to one side, such as the outer top panel (1) and the inner top panel (2) in case of the top side, the inner panel being closer to the inside of the carton.
  • the flaps may have in their denomination the name of the side with which they correspond once the carton is folded, followed of the name of the flap or panel with which they are associated.
  • the first left flap (7) associated with an edge to the front panel (4) is forming part of the left side in the folded carton and is physically attached the front panel (4) with a folding line.
  • the side denomination namely left, right, top, bottom, back and front
  • flaps and panels may be linked to each other not by folding lines but by glue.
  • the glue can be applied in different ways. For example, cold glue can be used, applied with rollers or glue guns, but also hot glue, whether applied with glue guns or pattern plates.
  • the carton structure of the present invention is such that it can be sift proof, or even air tight if a special glue pattern is applied, so as to prevent air from passing through the structure.
  • the structure should to be sift proof both through the sides and through the edges.
  • sift proof what is meant is that the content of the carton should not escape the carton in an undesired manner, for example in the form of dust or particles.
  • the top side of the present invention comprises two panels, the outer top panel (1) and the inner top panel (2). If the side is composed of flaps, it is important that the flaps cooperate with each other as expected to obtain a sift proof structure. Usually, it is obtained by gluing the flaps to each other. However, there is an issue due to drag back.
  • Drag back is a dynamic phenomenon which usually occurs while forming the carton structure: the sleeve may not remain perfectly rectangular in cross section but take a trapezoidal shape, so that gluing and folding is not done perfectly, introducing the risk of not being in line, so that the flaps may not cooperate properly to cover in a sift proof manner the side because the flaps may be skewed. It is additionally an object of the present invention to prevent skewing of the carton and to render the production process less sensitive.
  • the fourth left or right flap can render the sleeve more rectangular in cross section prior to folding and gluing by lying against two opposite sides, for example the front and back ones, in such a manner that the edge between the front or back with the top side is maintained at a right angle by the fourth left flap (10) or by the fourth right flap (10').
  • the structure should equally be sift proof along the edges. This is usually not difficult, except in the presence of a lid arrangement. Indeed, if a carton did not have a specific lid arrangement, all edges could be made sift proof by applying a sufficient amount of glue. However, in our case, the carton should have a lid which can be lifted and re-closed without difficulty. This means that the lid should not be glued only with a limited amount of glue. This usually has the consequence that the carton is not completely sift proof around the lid area, or that spillage occurs at opening of the carton. In the present invention, this is prevented by using the inner top panel (2), the fourth left and right flaps (10,10') and the back flap (6) to seal with glue the carton in the lid area.
  • a further object of the present invention is to produce a sift proof carton with a simple lid without extra flaps.
  • the carton may also comprise a snap lock (14) mechanism in the lid area, of any kind known of the man skilled in the art, for example composed of a snap flap and of a snap tab. Preferred here are audible snap lock (14) mechanisms.
  • the lid may also be lifted at opening by means of a de-laminated area (17) combined with perforations or with extra glue spots.
  • the carton of the present invention should allow use of a minimised amount of material for various reasons. Firstly, such a carton would not require a liner for extra stiffness if the grain direction is oriented adequately. Secondly, it is possible to use short flaps versions because skewing due to drag back is limited, so that the flaps are co-operating with each other as expected and do not need to be made larger to ensure that the carton is sift proof. Indeed, skewing is not critical for this type of carton because the fourth right and left flaps make the carton sift-proof.
  • short flaps can be used because the link between the outer top panel (1) and, for example, the left or right sides, is not critical, because the carton will be sift proof even if the outer top panel (1) is not tightly pressed onto the extremity of the flaps, were glue cannot be applied, so the carton is sift proof because the fourth left and right flaps (10,10') are providing the sealing. Additionally, the content of the carton can be increased at fixed cardboard quality because there is limited skewing, so that the structure is more robust and maintains better. This contributes to an additional object of the present invention for producing a carton with a reinforced structure and to yet another object of the invention which is to produce an ecological carton using a minimised quantity of materials.
  • the carton of the present invention may comprise different sorts of lid.
  • a hinged lid could be simply made of the outer top panel (1).
  • a full hinged lid can be made of the outer top panel (1), of part of the front flap (12), and of extra flaps so that the lid covers at least partially the front, left and right sides of the carton once closed.
  • This can be achieved thanks to a sixth left flap (13) associated with an edge to the front flap (12), a sixth right flap (13') associated with an edge to the front flap (12), a fifth left flap (11) associated with an edge to the outer top panel (1), and a fifth right flap (11') associated with an edge to the outer top panel (1).
  • the fifth left and right flaps (11,11') are linking the outer top panel (1) to the right and left side by being glued onto the left side for the fifth left flap (11) and on the right side for the fifth right flap (11'), so that this link would also be achieved if the fifth flaps were attached with an edge to the left and right sides respectively, and glued onto the outer top panel (1).
  • the carton of the invention may comprise features and variations of the existing cartons, such as for example the cartons disclosed in EP 0 588 789 B1 or in WO 92/20583.
  • die cuts used for cartons are preferably made of one piece only, in order to reduce complexity of assembly and the production costs. This often leads to difficulties for integrating a lid to the structure while ensuring that the final carton is sift proof and the lid easy to open. This should be done while fulfilling another object of the present invention which is to produce a carton which does not require a tear strip.
  • Another characteristic of a die cut according to the present invention is to have only two folding or cutting direction, this again for costs reasons.
  • a die cut has a grain direction. The folding or cutting directions may be chosen so as to take account of the grain direction, considering that the cardboard is more foldable along the grain direction.
  • Extra parts may be added, such as extra flaps for the lid.
  • Such a die cut can be used for making cartons as described in claim 1.
  • Snap lock (14) means known of the man skilled in the art can be integrated to the die cut.
  • the carton is made from a single unit die cut.
  • the die cut comprises a back flap (6).
  • This back flap (6) can be folded back as indicated.
  • the next move consists in folding the folding line between the front panel (4) and the bottom panel (3).
  • Figure 2 whereby the back flap (6) has been glued onto the inner side of the back panel (5).
  • the sleeve of figure 3 is normally placed as in the figure 4-a position, so that the opposite sides which are still opened are in the vertical axis. This is due to the fact that standard processing lines are adapted to such a position.
  • the sleeve is unfolded as shown in 4-b, so that it is not a flat structure anymore.
  • the carton takes a rectangular cross section.
  • the fourth left flap (10) should have a part longer than the fifth left flap (11), because it should be folded before the fifth left flap (11), so it has to be folded independently from the fifth left flap (11).
  • the fourth left flap (10) is longer than the fifth left flap (11) along the second direction of the die cut, but for example a cut-out in the fifth left flap (11) would be sufficient to gain the access for folding the fourth left flap (10) before folding the fifth left flap (11).
  • the rectangular cross section of the sleeve is due to the position of the fourth left flap (10) position, which, as can be seen in figure 4-d, is ensuring that the carton is not subject to drag back.
  • glue can be applied according to standard processes to prepare the next folding.
  • the way glue is applied in 4-d is important because it will insure that the fourth left flap (10) is sift proof.
  • the fourth left flap (10) is folded first, so that all of the other left flaps are folded over it.
  • folding over it is meant that the fourth left flap (10) is closer to the inside of the carton that any flap folded over it.
  • the second left flap (8) were a long flap
  • the second left flap (8) could be the only flap glued and folded over the fourth left flap (10).
  • the third left flap (9) is glued with minimised skewing. If some skewing still occurs, the shape of the third left flap (9) or of other flaps could be slightly modified to allow skewing. Thanks to this folding/gluing operation, a sift proof attachment is made between the top side and the left side. This sift proof attachment could also be achieved with a short flap (16) as the one found on figure 7, allowing to use less material. This particular short flap is shortened along the first direction, but any flap could also be shortened along the second direction, or be adapted and have cut-outs integrated by the man skilled in the art to facilitate the assembly or other properties.
  • this gluing stage can also be achieved by standard gluing procedures. It should be noted that this gluing stage will allow finishing folding and gluing of the entire left side of the carton.
  • the glue patterns can be modified to improve further the fact that the carton is sift proof, or to take account of other elements, such as use of short flaps. Folding will go on as described in figures 4-g and 4-h, using again standard rails and tucker wheels, so as to obtain a folded and closed left side.
  • the fifth left flap (11) is folded and glued last, whether the fifth left flap (11) is glued on the left side and associated to the outer top panel (1) with an edge, or whether it is glued on the outer top panel (1) and associated to the sixth left flap (13) attached with an edge to the front flap (12).
  • the carton can be turned around, the right side on top, so as to be filled. However, this is not necessary because on some folding lines, the folding can take place on the top or on the bottom.
  • the right side is folded, the folding of the right side comprising the same steps as the folding of the left side.
  • the carton structure is delivered to the user in the state described in figure 5-a. Up to this point, the carton is completely sealed and sift proof, and may even be made air tight.
  • the first action required by the user is to lift the lid, which can be easily done thanks to the to minimised gluing, or de-lamination, or thanks to perforated lines.
  • the lid presented in this example is a hinged lid, and is comprising the outer top panel (1), at least part of the front flap (12), the sixth left and right flaps (13,13'), the fifth left flap (11) and the fifth right flap (11').
  • Such a lid has sides which cover the left, right and front sides of the carton once re-closed. Once opened, the user gains access to the inner top panel (2).
  • Promotional items or others may have been inserted in a tamper proof location between the inner top panel (2) and the outer top panel (1), so that the user now has access to them.
  • the user can easily access the content of the carton by removing the inner top panel (2) or part of it, as described in figure 5-c. Removal may be facilitated by various ways known in the art, using perforated lines, partial cuts, tear strip or tear tape for example.
  • the inner top panel (2) may be only partially removable, in such a manner that part of the inner top panel (2) remains to avoid spillage of the content if, for example, the carton is inclined once opened.
  • the removable part may be used to display instructions or as a promotional voucher or other items of the sort.
  • the inner top panel (2) is glued to the outer top panel (1), so that opening occurs in a single step when the lid is lifted for the fist time.
  • the carton can be re-closed with the lid.
  • a snap lock (14) mechanism can be provided as known of the man skilled in the art, preferably of the audible snap lock (14) kind, although it is possible to have a carton without snap lock (14), for example with the carton which would be obtained from the die cut described in figure 13.
  • Figure 6-a and 6-b are examples of a cross section of a carton according to the present invention, in a plane parallel to the front or back side for 6-a, and in a plane parallel to the right or left side in 6-b.
  • the assembly composed of the left side, the inner top panel (2) the right side and the bottom side can be rendered sift proof by gluing the fourth left flap (10) and the fourth right flap (10').
  • the lid is also clearly seen, composed of the outer top panel (1), of the sixth left and right flaps (13,13'), of the fifth left and right flaps (11,11') and of at least part of the front flap (12).
  • Easy removing of part of the inner top panel (2) is here provided by the partial cuts and reversed partial cuts. Similarly, easy opening of the lid is achieved thanks to breaking of perforation.
  • Such an embodiment also provides a snap lock (14) mechanism.
  • FIG. 7 Another preferred embodiment of the present invention is presented by the die cut of figure 7, this die cut having the characteristic of having a long front flap (12) and long sixth left and right flaps (13,13'), so as to render the carton more robust.
  • the front side in particular has a double layer, consisting of a long front flap (12) and of a front panel (4).
  • the tear strip (15) should have an axis perpendicular to the direction of the grain of the die cut in order to be more resistant.
  • This die cut is also presented together with the option of replacing a long flap with a short flap, so as to use less material. Robustness can be further improved on the back side by using a long back flap (6) as presented in figure 8. Different combination of long or short flaps can be chosen in order to adapt the carton to the robustness required.
  • Figure 9 presents another embodiment of the present invention whereby the fifth left and right flaps (11'', 11''') are attached to the sixth left and right flaps (13,13') respectively.
  • the fifth left and right (11'',11''') flaps will be glued to the outer top panel (1) during folding of the carton. This is an example of variations on the carton of the invention.
  • Figure 10 introduces an other embodiment of the carton of the present invention, whereby the folding of the sleeve is modified, due to a different positioning of the panels on the die cut, so that the sleeve is formed by folding the folding line between the inner top panel (2) and the front panel (4) as presented in figure 12, after what the folding line between the bottom panel (3) and the back panel (5) is folded to be glued onto the front flap (12) and onto the sixth left and right flaps (13,13').
  • the opening of the lid is facilitated by the removal of a tear strip (15).
  • the grain direction should be vertical because it would allow easier folding of the left flaps and because the front and back side will participate more efficiently to supporting the structure if the grain direction of the panels of which they are composed is aligned to gravity.
  • the first direction is vertical and the second direction horizontal, the first direction being preferably the grain direction.
EP97202128A 1997-07-10 1997-07-10 Carton pour des matériaux granulaires, flan et son procédé de fabrication Withdrawn EP0890518A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP97202128A EP0890518A1 (fr) 1997-07-10 1997-07-10 Carton pour des matériaux granulaires, flan et son procédé de fabrication
PCT/US1998/014384 WO1999002411A1 (fr) 1997-07-10 1998-07-10 Carton pour materiaux granulaires, coupage a la forme et procede de formation dudit carton
ARP980103346 AR016316A1 (es) 1997-07-10 1998-07-10 Caja para materiales granulados, un corte troquelado de la misma y proceso para obtener la caja que comprende los pasos de montura de una manga a una cajay cerrarla

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97202128A EP0890518A1 (fr) 1997-07-10 1997-07-10 Carton pour des matériaux granulaires, flan et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP0890518A1 true EP0890518A1 (fr) 1999-01-13

Family

ID=8228533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97202128A Withdrawn EP0890518A1 (fr) 1997-07-10 1997-07-10 Carton pour des matériaux granulaires, flan et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP0890518A1 (fr)
AR (1) AR016316A1 (fr)
WO (1) WO1999002411A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003031272A1 (fr) * 2001-10-09 2003-04-17 Paola Caroli Boite en carton refermable
IT201700091368A1 (it) * 2017-08-07 2019-02-07 Francesco Mastalia Box in cartone o simile per spedire campioni e/o omaggi, con chiusura antieffrazione

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442079A (en) * 1943-07-14 1948-05-25 Waldorf Paper Prod Co Carton
US2835594A (en) * 1952-11-10 1958-05-20 Gen Mills Inc Chest-type container
GB950989A (en) * 1961-02-10 1964-03-04 Merck & Co Inc Carton
US3591071A (en) * 1969-08-29 1971-07-06 Burt & Co F N Easy-open recloseable carton
US4049190A (en) * 1976-11-26 1977-09-20 Merkert Enterprises, Inc. Mailing and storage box
US4141449A (en) * 1977-06-09 1979-02-27 Stone Orison W Recloseable pilfer-proof container and blanks
US5074462A (en) * 1991-06-11 1991-12-24 Nabisco Brands, Inc. Carton having detachable promotional coupon on its end closure
WO1995032125A1 (fr) * 1994-05-19 1995-11-30 Unilever Plc Emballage pour poudres

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5007541A (en) 1990-03-16 1991-04-16 The Procter & Gamble Company Carton for granular materials
US5161734A (en) 1991-05-10 1992-11-10 Procter & Gamble Reclosable carton for granular materials
JPH0966927A (ja) 1995-09-04 1997-03-11 Toppan Printing Co Ltd 粉末洗剤などの紙箱
DE19627649C2 (de) * 1996-07-09 2001-02-01 Ghs Gesundheits Service Ag Umwandelbare Faltschachtel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442079A (en) * 1943-07-14 1948-05-25 Waldorf Paper Prod Co Carton
US2835594A (en) * 1952-11-10 1958-05-20 Gen Mills Inc Chest-type container
GB950989A (en) * 1961-02-10 1964-03-04 Merck & Co Inc Carton
US3591071A (en) * 1969-08-29 1971-07-06 Burt & Co F N Easy-open recloseable carton
US4049190A (en) * 1976-11-26 1977-09-20 Merkert Enterprises, Inc. Mailing and storage box
US4141449A (en) * 1977-06-09 1979-02-27 Stone Orison W Recloseable pilfer-proof container and blanks
US5074462A (en) * 1991-06-11 1991-12-24 Nabisco Brands, Inc. Carton having detachable promotional coupon on its end closure
WO1995032125A1 (fr) * 1994-05-19 1995-11-30 Unilever Plc Emballage pour poudres

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003031272A1 (fr) * 2001-10-09 2003-04-17 Paola Caroli Boite en carton refermable
IT201700091368A1 (it) * 2017-08-07 2019-02-07 Francesco Mastalia Box in cartone o simile per spedire campioni e/o omaggi, con chiusura antieffrazione
WO2019030663A1 (fr) * 2017-08-07 2019-02-14 Mastalia Francesco Boîtes en carton destinées à l'expédition d'échantillons et/ou de cadeaux, pourvues d'une fermeture anti-fraude

Also Published As

Publication number Publication date
AR016316A1 (es) 2001-07-04
WO1999002411A1 (fr) 1999-01-21

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