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
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/60—Contents and propellant separated
  • B65D83/62—Contents and propellant separated by membrane, bag, or the like

Definitions

• the invention relates to a bag for a pressurized bottle according to the preamble of the main claim.
• Such bags are commonly used in cosmetic, food and technical sprayers. They allow to separate the product to be applied propellant contained in the bottle.
• They generally consist of two walls welded together by four welds, a valve being integrated in the upper weld to allow the removal of the contents of the pocket.
• these pockets therefore have an oval or elliptical cross section.
• the two side welds each form a protruding edge which requires oversizing the bottle to give them room.
• the bottom of the bag is also flattened and away from the wall of the bottle. In other words, the dead space inside the bottle due to the geometry of the pocket is not negligible.
• Document FR 2 853 633 A1 discloses a bag for a non-pressurized bottle whose central cylindrical part is formed by rolling a rectangular laminated film and sticking together the opposite sides. This pocket is closed at the bottom by a thick plate to which it is connected by welding. The upper part of the pockets is welded to a circular collar on which can be snapped a pumping device. When taking the product, a negative pressure is formed in the shrinking bag. However, the bottom plate prevents complete contraction of the pocket due to its rigidity. In addition, it is not possible, always because of this thick bottom plate, but also the upper flange, to wind the pocket on itself along its longitudinal axis for example to facilitate its introduction into a bottle with a smaller introduction neck or to reduce the storage volume before assembly.
• the objective of the invention is therefore on the one hand to reduce the number of welds necessary for the manufacture of the bag and on the other hand to reduce the dead space inside the bottle to increase the filling rate while keeping a pocket flexible enough to be rolled up on itself to facilitate introduction into a bottle.
• the tubular wall is obtained by overlapping and welding the two side edges of a strip.
• the tubular wall of the pocket will have a substantially circular cross section in much of its height.
• the protruding edges of the pockets of the state of the art are avoided.
• the upper part of the side weld is at one end of the upper weld of the tubular wall.
• the tubular wall is closed in its lower part by flat welding of the lower edge of the wall, preferably in the same plane as the upper weld incorporating the valve.
• This first embodiment is particularly simple to achieve.
• the cross section of the pocket is almost circular in the middle of the height of the pocket, this section tends to become elliptical approaching the upper and lower ends where it is completely flat.
• the pocket occupies at least in its central part a large part of the space of the bottle, considerably reducing the dead space in this part.
• the tubular wall is closed in its lower part by a substantially round bottom wall.
• the circular cross section extends into the lower portion of the pocket, tending to become elliptical while approaching the upper end where it is completely flat.
• the pocket occupies, at least in a much lower part, almost all the space of the bottle, considerably reducing the dead space in this part.
• the bottom wall In order to allow a winding of the pocket on itself along the longitudinal axis of the tubular wall, it is preferable to make the bottom wall in a flexible material, preferably in the same material as that used for the wall. tubular. By choosing the same material, it facilitates manufacturing management and avoids the problems of welding incompatibility. It is thus possible to reduce the storage volume of the bags before they are introduced into the pressurized bottles and to facilitate their introduction into these bottles when the neck of the bottles is relatively narrow.
• the bottom wall is substantially flat and perpendicular to the longitudinal axis of the pocket. This is the simplest solution to achieve.
• the bottom wall is preferably fixed on the inner face of the tubular wall, in particular by means of a folded edge.
• the tubular wall it is preferable for the tubular wall to consist of a metal-plastic film, preferably of aluminum combined with polypropylene, of high or low density polyethylene, of EVOH (ethylene-vinyl alcohol). ) and / or Orgaloy® (blend of polyamide and polypropylene).
• a metal-plastic film preferably of aluminum combined with polypropylene, of high or low density polyethylene, of EVOH (ethylene-vinyl alcohol).
• EVOH ethylene-vinyl alcohol
• Orgaloy® blend of polyamide and polypropylene
• FIG. 1 a perspective view of a first exemplary embodiment of a pocket according to the invention
• Figure 2 a front view of the pocket of Figure 1;
• Figure 3 a sectional view along the line A-A of Figure 2;
• Figure 4 a side view of the pocket of Figure 1;
• Figure 5 is a perspective view of a second embodiment of a pocket according to the invention;
• Figure 6 a front view of the pocket of Figure 5;
• Figure 7 a sectional view along the line A-A of Figure 6;
• Figure 8 a side view of the pocket of Figure 5;
• Figure 9 a partial section of the bottom of the pocket of Figure 5.
• the pocket (1, 101) of the invention consists of a tubular wall (2, 102).
• This tubular wall is obtained by welding the two side edges of a strip, these two edges overlapping.
• the longitudinal weld (23, 123) is therefore done by applying the inner face of one edge to the outer face of the other edge of the strip.
• This weld is therefore in the extension of the tubular wall without protruding as is the case in the state of the art where the two edges are welded together. putting the inner faces of the edges of the strip face to face.
• the tubular wall (2, 102) consists of a band closed on itself for example by a weld so as to obtain a circular cross section without projecting edge.
• the upper end (22, 122) is closed by flattening the tubular wall to weld it on itself.
• An aerosol valve (4, 104), in itself known, is placed in the center of this weld (22, 122) to allow the removal of the product contained in the pocket (1, 101).
• a metal-plastic film such as aluminum associated with polypropylene, high or low density polyethylene, EVOH (ethylene-vinyl alcohol), Orgaloy® (polyamide blend and polypropylene).
• EVOH ethylene-vinyl alcohol
• Orgaloy® polyamide blend and polypropylene
• This bag is intended to be introduced into a dispenser bottle.
• the valve is used to collect the contents of the bag.
• a gas or other propellant contained in the container, outside the pocket, serves to propel this content through the valve as soon as it is actuated.
• the tubular wall (102) is closed at its lower end (121) by flat welding the lower edge (121) of the wall.
• the upper weld (122) and the lower weld (121) are preferably in the same plane, although this is not an obligation.
• the longitudinal weld (123) is preferably located at one end of the lower (121) and upper (122) welds.
• the tubular wall (2) is closed at its lower end (21) by a substantially round bottom wall (3) made of a flexible material, preferably the same material as that used for the tubular wall. .
• the bottom wall (3) is fixed for example by welding at the lower end (21) of the pocket (2).
• This bottom wall (3) is substantially flat and extends in the plane perpendicular to the longitudinal axis of the pocket (1). It may for example be welded by folding down the periphery of the bottom wall (3) so that a projecting edge (31) is formed parallel to the longitudinal axis of the pocket as shown in FIG. 9.
• the advantage of this pocket, whether the first embodiment or the second, is to require only three welds instead of four in the pockets of the state of the art.
• the shape of the pocket is substantially cylindrical in a significant part of its height and not oval or elliptical as in the state of the art.
• the absence of flat longitudinal welds over the entire height of the bag effectively reduces the dead space in the bottle. This allows a better filling rate.
• the tubular wall is largely cylindrical and therefore aligns better with the wall of the container into which it must be introduced.

Landscapes

• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Tubes (AREA)
• Manipulator (AREA)
• Medical Preparation Storing Or Oral Administration Devices (AREA)
• General Preparation And Processing Of Foods (AREA)
• Jellies, Jams, And Syrups (AREA)
• Formation And Processing Of Food Products (AREA)
• Packages (AREA)

Priority Applications (14)

Applications Claiming Priority (2)

Publications (1)

Family

ID=38520666

Family Applications (1)

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Cited By (1)

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Citations (2)

Family Cites Families (6)

• 2007
  • 2007-02-23 FR FR0701298A patent/FR2912999B1/fr not_active Expired - Fee Related
• 2008
  • 2008-02-22 BR BRPI0807503-4A patent/BRPI0807503A2/pt not_active IP Right Cessation
  • 2008-02-22 PT PT08717045T patent/PT2125569E/pt unknown
  • 2008-02-22 ES ES08717045T patent/ES2341398T3/es active Active
  • 2008-02-22 DK DK08717045.2T patent/DK2125569T3/da active
  • 2008-02-22 WO PCT/EP2008/052182 patent/WO2008107319A1/fr active Application Filing
  • 2008-02-22 AU AU2008223993A patent/AU2008223993A1/en not_active Abandoned
  • 2008-02-22 DE DE602008000982T patent/DE602008000982D1/de active Active
  • 2008-02-22 EP EP08717045A patent/EP2125569B1/fr active Active
  • 2008-02-22 JP JP2009550720A patent/JP2010519144A/ja active Pending
  • 2008-02-22 CA CA002678629A patent/CA2678629A1/fr not_active Abandoned
  • 2008-02-22 RU RU2009135387/12A patent/RU2009135387A/ru not_active Application Discontinuation
  • 2008-02-22 US US12/528,372 patent/US20100176153A1/en not_active Abandoned
  • 2008-02-22 CN CN200880003956XA patent/CN101600632B/zh not_active Expired - Fee Related
  • 2008-02-22 MX MX2009007553A patent/MX2009007553A/es active IP Right Grant
  • 2008-02-22 PL PL08717045T patent/PL2125569T3/pl unknown
  • 2008-02-22 AT AT08717045T patent/ATE463444T1/de active
• 2009
  • 2009-07-02 IL IL199669A patent/IL199669A0/en unknown
  • 2009-07-07 ZA ZA200904733A patent/ZA200904733B/xx unknown
• 2010
  • 2010-02-05 HK HK10101306.5A patent/HK1137709A1/xx not_active IP Right Cessation

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