EP0564540B1 - Sac en materiau flexible pour l'emballage de produits compressibles, notamment de produits d'hygiene tels que des couches-culottes, et paquet de produits d'hygiene comprimes emballes dans un tel sac. - Google Patents

Sac en materiau flexible pour l'emballage de produits compressibles, notamment de produits d'hygiene tels que des couches-culottes, et paquet de produits d'hygiene comprimes emballes dans un tel sac. Download PDF

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Publication number
EP0564540B1
EP0564540B1 EP92902305A EP92902305A EP0564540B1 EP 0564540 B1 EP0564540 B1 EP 0564540B1 EP 92902305 A EP92902305 A EP 92902305A EP 92902305 A EP92902305 A EP 92902305A EP 0564540 B1 EP0564540 B1 EP 0564540B1
Authority
EP
European Patent Office
Prior art keywords
envelope
bag
products
compressed
opening
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
EP92902305A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0564540A1 (en
Inventor
Jean Roussel
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.)
Peaudouce SA
Original Assignee
Peaudouce 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 Peaudouce SA filed Critical Peaudouce SA
Publication of EP0564540A1 publication Critical patent/EP0564540A1/xx
Application granted granted Critical
Publication of EP0564540B1 publication Critical patent/EP0564540B1/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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/007—Details of, or accessories for, sacks or bags for facilitating the separation of the two walls, e.g. walls of inequal height, tabs; for maintaining the mouth of the sack or bag open
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • 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

Definitions

  • the present invention relates to a bag made of flexible material for the packaging of products compressed in one direction, for example of hygiene products such as diapers, formed of a flexible envelope surrounding and holding the products in place. compressed state and comprising means for opening the envelope for the removal of the products, as well as a pack of compressed hygiene products packed in such a bag.
  • the opening means are defined by lines of perforations formed in a wall of the bag which is perpendicular to the direction of compression of compressed products.
  • the opening defined by the perforation lines has a width less than the width of the products and preferably a width which increases down. It is also expected that the opening defined by perforation lines extends only over part of the height of the products.
  • the object of the present invention is to create a bag for packaging compressible products, which bag makes it possible to extract the packaged products in a simple manner one by one from the packaging. even when they are under high compression.
  • the object of the invention is also to create a pack of compressed hygiene products packed in such a bag in a particularly compact form, with means for allowing easy extraction of the hygiene products one by one, without risk of escape. untimely products.
  • the bag according to the invention for packaging products compressed in one direction is formed of a flexible envelope surrounding and maintaining the products in the compressed state and comprising means for opening the envelope for the removal of products.
  • the envelope further comprises, on a first side of the bag which is perpendicular to the direction of compression of the products, expansion means allowing the user to increase the interior volume of the envelope uniformly over substantially the whole of said first side to decompress the products, and said opening means are provided on a second side of the bag in an area adjacent to said first side.
  • said expansion means comprise an envelope wall reserve and means for maintaining this wall reserve in the inactive position, that is to say in the reserve position. It is therefore only when the envelope wall reserve is put into action by the user that an increase in the interior volume of the envelope occurs, therefore a decompression of the products, which facilitates in a largely their removal one by one.
  • Said expansion means may comprise an envelope part extending in the manner of a pocket towards the interior of the envelope and immobilization means for maintaining this envelope wall part in the form of a pocket at inside the envelope.
  • the bag according to the invention may preferably have a generally parallelepiped shape and contain at least one horizontal stack of diapers arranged vertically and compressed in the horizontal stacking direction.
  • the expansion means are provided on a vertical side of the bag substantially on the entire height of said side.
  • the opening means are also provided on the top of the bag, in an area adjacent to said vertical side.
  • the envelope part constituting an envelope wall reserve can be constituted either directly by a surface portion of the envelope, deformed in bellows, or by a portion attached to the envelope.
  • the means for immobilizing the envelope wall reserve advantageously comprise connection means, for example by gluing or welding the edges of the pocket-shaped envelope part.
  • said immobilization means also comprise tearing or tearing means.
  • a bag 1 for packaging compressible products for example hygiene products such as diapers
  • a flexible envelope 2 preferably made of plastic sheet , surrounding and maintaining the products in the compressed state.
  • diapers 3 are arranged vertically in the form of a horizontal stack between the two opposite small vertical sides 4, 5 of the bag 1 as a whole having an essentially parallelepiped shape. Diapers 3 are compressed in the direction of their stacking, that is to say in FIG. 1 perpendicular to the two opposite small vertical sides 4, 5 of the bag 1.
  • the bag 1 comprises, according to FIG. 1, at the location of the small vertical side 5, an envelope wall reserve 6 disposed inside the envelope 2.
  • This reserve 6 is intended to allow, during the opening of the bag 1, with a view to removing the diapers 3, an expansion of the interior volume of the bag 1 in the direction of an increase in the horizontal perimeter of the envelope 2, as indicated in 7 in dashed lines in FIG. 1.
  • the envelope wall reserve 6 is constituted by a pocket 8 produced for example in the same sheet material as the envelope 2, the pocket 8 being connected to the vertical wall 5, inside the latter, over all or part of the height of the bag 1, by a central weld 9 flanked by two lateral welds 10 extending at a short distance and parallel to the central weld 9. There is thus, between the central weld 9 and each of the lateral welds 10, an area having a double thickness formed one by the envelope 2 and the other by the pocket 8.
  • the user makes a cut in the double sheet thickness between the middle weld 9 and one and / or the other of the two lateral welds 10, in the or the planes referenced 11, so that under the pressure of the products contained in the compressed state in the envelope 2, the envelope wall reserve 6 is brought to the active position, that is to say the bag 8 is deleted, the length of wall previously kept in reserve in the form of a pocket 8 inside the envelope 2 being released to allow an increase in the perimeter of the envelope 2, as indicated at 7 in the figure 1.
  • the products packed in the compressed state in the bag 1 can thus expand, that is to say relax in the additional volume thus created, which facilitates their extraction from the bag.
  • FIGS. 3a to 3e A method of manufacturing the bag comprising an envelope wall reserve 6 according to FIG. 2 is illustrated by FIGS. 3a to 3e.
  • the pocket is formed in a tubular sheath section 12 of plastic sheet.
  • the sheath section 12 is provided with a bellows-shaped fold 13 of shallow depth on a first of its two opposite lateral edges and a bellows-shaped fold 14 of greater depth along its second side edge.
  • two welds 10 are carried out in order to join each time the two sheet thicknesses of the two branches of the bellows 14, a short distance from the free end of said branches.
  • the bellows 14 are deformed further inward to increase the depth of the bellows 14 by a value corresponding to the depth of the opposite bellows 13, which gives rise to an external bellows 15 whose bottom is defined by the welds 9, 10, while the internal bellows 14 extending from the welds 9, 10 inwards constitutes the pocket 8 forming the envelope wall reserve 6 according to FIGS. 1 and 2.
  • the envelope wall reserve 6 according to FIG. 4 differs from that of FIG. 2 in that a simple sheet thickness is provided in the zones between the middle weld 9 and the two lateral welds 10 of the pocket 8 and from the wall 5 of the envelope 2.
  • the user need only cut into one and / or the other of these two intermediate zones along the planes referenced 11 to allow the envelope 2 to increase its perimeter by the value of the pocket 8, for the purpose of expanding the diapers contained in the bag.
  • the packaging bag is produced according to FIG. 5a from a single sheath section 16 folded in half. Along the folded edge, the sheath section 16 is deformed inwards in the form of a bellows 13. On the second open edge, to form a bellows, a sheath ribbon 17 is introduced into the sheath section 16. itself folded in half so that its folded edge is turned towards the inside of the sheath section 16 and its two branches are turned in the same direction as the two branches of the sheath section 16 (see FIG. 5b).
  • each branch of the ribbon 17 is then connected to the corresponding branch of the sheath section 16, in a position slightly recessed inwards relative to the free ends of the branches of the sheath section 16.
  • the assembly comprising the tape 17 and the welds 9 and 10 is deformed more deeply towards the inside, to constitute an external bellows. 15 having the same depth as the bellows 13, the ribbon 17 then forming the pocket 8 of the envelope wall reserve 6 of FIG. 4.
  • the envelope wall reserve 6 is constituted by a pocket 8 connected to the wall 5 of the envelope 2 by two parallel welds 9, 10, a double thickness of sheet being provided between said two welds. To remove the pocket 8, it suffices for the user to cut the zone of double thickness between the two welds 9 and 10, for example along plane 11.
  • a bellows 13 is formed along the edge. folding, and inserting a sheath ribbon 17 folded in half in the sheath section 16 on the other open edge of the latter ( Figure 7b). Then, a weld 10 is carried out between one of the branches of the ribbon 17 and the corresponding branch of the sheath section 16, in a position slightly recessed relative to the free ends of said branches (FIG. 7c). One then proceeds to a weld 9 between the free ends of the two branches of the ribbon 17 and the free ends of the two free branches of the sheath 16 (FIG. 7d).
  • FIG. 8 represents a preferred embodiment of the envelope wall reserve 6 on the wall 5 of the envelope 2 of a packaging bag according to the invention.
  • the pocket 8 of the envelope wall reserve 6 is here formed directly in the material of the envelope 2 of the bag, by deformation of the wall 5 of the envelope 2 inwardly in the form of a pocket 8.
  • an attached strip 18 instead of keeping this pocket 8 in the inactive position, that is to say in the reserve position, by welds directly between parts of the wall of the envelope, it is intended here to use an attached strip 18, for example an adhesive strip or a welded strip, to maintain joined the connecting edges of the pocket 8 to the wall 5 of the envelope 2.
  • the user can either tear off the tape 18 when the latter is an adhesive tape , either cut or tear the ribbon 18 in a plane referenced 19 in FIG. 8.
  • the manufacture of the envelope 2 comprising an envelope wall reserve 6 according to FIG. 8 is carried out from a section of tubular sheath 12 (FIG. 9a) which is provided on one edge with a bellows 13 and on the opposite edge of a deeper bellows 14 (Figure 9b).
  • the ribbon 18 is then placed between the free ends of the two branches of the bellows 14 (FIG. 9c).
  • the bellows 14 constituting the pocket 8 are deformed more deeply towards the inside, to form an external bellows 15 a depth corresponding to that of the bellows 13 (FIG. 9d).
  • FIGS. 2 to 9 illustrate several embodiments of the expansion means provided on the packaging bag according to the invention
  • FIGS. 10a to 10e represent different stages of manufacture of a preferred concrete example of a packaging bag according to the invention
  • FIGS. 10f to 10g illustrate a package of diapers or the like compressed in such a bag, respectively before opening, after opening and after expansion of the bag of the package.
  • the packaging bag is manufactured from a section of tubular sheath 12.
  • a rectangular notch 20, 21 is cut in each of the two corners of a first of the two opposite lateral edges of the sheath section 12.
  • the two notches 20, 21 have the same depth perpendicular to the side edges, but the upper notch 20 has here, parallel to the side edges, a greater height than the lower notch 21. It should be noted that the height h of the part 22 remaining between the two notches 20 and 21 is less than or equal to one of the dimensions of the products to be packaged in the bag, as will appear later.
  • a cutout 26 serving as a handle hole is made in the two folds of the sheath section 12, between the two weld lines 23 and 24, and a line of perforations 27 comprising a vertical branch s is formed in the two folds extending from the weld line 23 down through the panel 25 to a distance below the weld line 24, being slightly offset inwardly relative to the connecting tape 18, and a horizontal branch s extending outward at a distance below the weld line 24.
  • the sheath section 12 thus prepared constitutes a bellows packaging bag, closed at the top, handle side, but not yet closed at the bottom side, which is then opened to introduce therein the compressed diapers, before to close the bottom in the usual way, for example by a weld made nearby along the lower transverse edge in FIG. 10e.
  • Figure 10f shows the package thus obtained for the storage and transport of diapers in the compressed state, in a reduced volume.
  • the diapers contained in the compressed state in the package according to FIG. 10f are arranged in parallel vertical planes in the form of a horizontal stack between the small side 28 and the small opposite side of the packet, the horizontal "height" of this stack, that is to say the length L of the rectangular pack, corresponding to the width L of the sheath section 12 according to FIGS. 10c and 10d .
  • the user grasps the part 29 of the panel 25 delimited by the line of perforations 27, and exerts traction on said part 29 to cause it to be torn off along the line of perforations 27. Since the line of perforations 27 passes not only in the panel 25 delimited by the two weld lines 23 and 24, but also below the weld line 24, this tearing of the part 29 causes the bag 1 to open on the top of the latter, in an area adjacent to the small vertical wall 28.
  • This opening referenced 30 in FIG. 10g has roughly the shape of a rectangle or a trapezoid, widening towards the wall 28.
  • the diapers 31 contained in the packaging bag 1 are then accessible through the upper opening 30, but because of their compression, extracting them one by one from the package is difficult, if not impossible.
  • the user tears off or tears the connecting tape 18 from the upper opening 30 to the bottom of the package.
  • the tearing or tearing of the ribbon 18 releases the bellows 14, that is to say the pocket 8 constituting the envelope wall reserve, so that under the pressure of the diapers 31 contained in the package 1 , the latter lengthens substantially over its entire height by a value referenced ⁇ L in FIG. 10h. Due to the decompression which they thus undergo, the diapers 31 can then be removed without difficulty one by one through the upper opening 30, the size of which has increased accordingly.
  • the end wall 32 that the packaging bag 1 has after this expansion extends over the entire height of the diapers 31.
  • the diapers 31 are thus perfectly held in position in the bag 1 and can be extracted upwards through the upper opening 30, without any risk of inadvertent escape of the diapers through the opening 30 which is parallel to the direction of compression of the diapers 31.
  • this position of the extraction opening 30, in combination with the decompression effect of the layers -pants by expansion of the interior volume of the package ensures that the package according to the invention significantly improves ease and reliability of use, even with higher degrees of compression of the layers packaged panties.
  • the packaged products which can be products other than diapers, can be contained in the form of several horizontal stacks juxtaposed or superimposed in the package.
  • rectangular products arranged in parallel vertical planes instead of being placed upright as in Figure 10h, their long sides being vertical, could also be lying, their long sides being horizontal.
  • the height h of the part 22 in FIG. 10b instead of corresponding to the large dimension of the products, would correspond to the small dimension of the latter.
  • the sampling opening could be located on one of the vertical walls and the envelope wall reserve on one of the horizontal walls (top or bottom).

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Wrappers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Materials For Medical Uses (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
EP92902305A 1990-12-26 1991-12-20 Sac en materiau flexible pour l'emballage de produits compressibles, notamment de produits d'hygiene tels que des couches-culottes, et paquet de produits d'hygiene comprimes emballes dans un tel sac. Expired - Lifetime EP0564540B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9016280 1990-12-26
FR9016280A FR2671054B1 (fr) 1990-12-26 1990-12-26 Sac en materiau flexible pour l'emballage de produits compressibles, notamment de produits d'hygiene tels que des couches-culottes, et paquet de produits d'hygiene comprimes emballes dans un tel sac.
PCT/FR1991/001039 WO1992012069A1 (fr) 1990-12-26 1991-12-20 Sac en materiau flexible pour l'emballage de produits compressibles, notamment de produits d'hygiene tels que des couches-culottes, et paquet de produits d'hygiene comprimes emballes dans un tel sac.

Publications (2)

Publication Number Publication Date
EP0564540A1 EP0564540A1 (en) 1993-10-13
EP0564540B1 true EP0564540B1 (fr) 1994-09-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP92902305A Expired - Lifetime EP0564540B1 (fr) 1990-12-26 1991-12-20 Sac en materiau flexible pour l'emballage de produits compressibles, notamment de produits d'hygiene tels que des couches-culottes, et paquet de produits d'hygiene comprimes emballes dans un tel sac.

Country Status (20)

Country Link
US (1) US5377837A (fi)
EP (1) EP0564540B1 (fi)
JP (1) JPH06508806A (fi)
AT (1) ATE112226T1 (fi)
AU (1) AU663299B2 (fi)
CA (1) CA2099252A1 (fi)
CZ (1) CZ283174B6 (fi)
DE (1) DE69104381T2 (fi)
DK (1) DK0564540T3 (fi)
ES (1) ES2061337T3 (fi)
FI (1) FI932958A (fi)
FR (1) FR2671054B1 (fi)
HU (1) HUT68471A (fi)
MX (1) MX174339B (fi)
NO (1) NO300060B1 (fi)
NZ (1) NZ241042A (fi)
SK (1) SK279511B6 (fi)
TN (1) TNSN91123A1 (fi)
WO (1) WO1992012069A1 (fi)
ZA (1) ZA9110023B (fi)

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CN101854899B (zh) * 2007-10-02 2015-09-16 科威设计集团有限公司 具有独立的带子或具有由叠层外表层形成的护腿的一次性尿布
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Also Published As

Publication number Publication date
AU663299B2 (en) 1995-10-05
HU9301867D0 (en) 1993-11-29
CZ127993A3 (en) 1994-01-19
MX9102789A (es) 1992-06-01
NO932351D0 (no) 1993-06-25
ATE112226T1 (de) 1994-10-15
CA2099252A1 (fr) 1992-07-23
DK0564540T3 (da) 1995-03-13
FR2671054B1 (fr) 1994-08-26
NO300060B1 (no) 1997-04-01
SK279511B6 (sk) 1998-12-02
AU9124191A (en) 1992-08-17
JPH06508806A (ja) 1994-10-06
TNSN91123A1 (fr) 1992-10-25
DE69104381D1 (de) 1994-11-03
WO1992012069A1 (fr) 1992-07-23
HUT68471A (en) 1995-06-28
FI932958A0 (fi) 1993-06-24
DE69104381T2 (de) 1995-02-16
CZ283174B6 (cs) 1998-01-14
NO932351L (no) 1993-06-25
US5377837A (en) 1995-01-03
ES2061337T3 (es) 1994-12-01
MX174339B (es) 1994-05-09
FI932958A (fi) 1993-08-24
SK66693A3 (en) 1994-07-06
NZ241042A (en) 1994-12-22
EP0564540A1 (en) 1993-10-13
ZA9110023B (en) 1992-10-28
FR2671054A1 (fr) 1992-07-03

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