WO1995013971A1 - Sachet flexible, gonfle, se tenant droit par lui-meme - Google Patents

Sachet flexible, gonfle, se tenant droit par lui-meme Download PDF

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Publication number
WO1995013971A1
WO1995013971A1 PCT/US1994/013096 US9413096W WO9513971A1 WO 1995013971 A1 WO1995013971 A1 WO 1995013971A1 US 9413096 W US9413096 W US 9413096W WO 9513971 A1 WO9513971 A1 WO 9513971A1
Authority
WO
WIPO (PCT)
Prior art keywords
pouch
pouches
inflated
cut
region
Prior art date
Application number
PCT/US1994/013096
Other languages
English (en)
Inventor
Patrick Jean-Francois Etesse
Werner Herman M. B. Libens
Original Assignee
The Procter & Gamble Company
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 The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to JP7514542A priority Critical patent/JPH09505260A/ja
Publication of WO1995013971A1 publication Critical patent/WO1995013971A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B65D75/008—Standing pouches, i.e. "Standbeutel"

Definitions

  • the present invention relates to doypack-type pouches, i.e. self-standing pouches made of flexible material.
  • Doypack-type pouches are well known in the art. These self standing pouches have found wide commercial applications because they are environmentally compatible in that they generate much less waste material and volume than conventional packaging. Indeed, these pouches are made with flexible materials such that the pouch can be rolled after it is used, and disposed of in a convenient manner. Most of the doypack business thus lies in refill packaging. Another main feature of doypack-type pouches is that they comprise a base design such that they are self-standing, thus they can be conveniently displayed on shelves, and securely stored in the household.
  • naterials which are as thin as possible.
  • this requirement is somewhat in contradiction with the requirement that the pouches should be self-standing. Indeed, as the material used gets thinner, the pouch tends to fold, especially in the headspace region. This is clearly undesirable as folding compromises stability of standing, and can even lead, in the worst conditions, to cracking of the pouch in the folded region.
  • a possible solution to this problem is the elaboration of pouches with sophisticated and specific dimensions or design for a given volume. This solution involves a certain amount of research and is therefore impractical, expensive and inflexible as different designs are required for different volumes.
  • the present invention solves both these problems at the same time. Indeed, we have now found that by inflating a doypack-type pouch before it is closed, an inflated pouch is obtained which is less prone to folding and wherein the formation of a spontaneous spout is eased as the cut-opening region is cut off.
  • This invention is also very flexible in that it can apply to any pouch, by adjusting the amount of air to be introduced in the pouch.
  • the pouches of the present invention are self-standing pouches made of a flexible material and comprising contained goods, characterized in that they are inflated.
  • the present invention also encompasses a process for the manufacture of such pouches, wherein said pouches are assembled leaving their filling regions opened, and the pouches are then filled with said goods and inflated before they are closed.
  • the pouches of the present invention are doypack-type pouches.
  • doypack- type pouch it is meant herein a pouch which is made of a flexible material and which has the ability to stand in an upright position.
  • Such pouches are disclosed for instance in US 3,380,646, L. Doyen et Al.
  • these pouches comprise a base portion, on which the pouch stands, and an upper portion.
  • the pouches generally comprise two opposite side walls and a bottom gusset comprising two panels joined by a median line.
  • the panels of the bottom gusset are affixed to the side walls in the bottom region of the pouch, constituting said base portion, and the side walls are affixed together in the upper part of the pouch, distant from the bottom region.
  • Various embodiments of the base are conceivable.
  • Dispensing means may include all kinds of caps, which can be affixed via a transition piece to a side wall of the pouch, but preferably, the pouches herein are opened by cutting a portion of the pouch, said portion hereinafter referred to as a cut-open region.
  • Said region is preferably an upper corner of the pouch so as to provide a pouring spout upon opening.
  • Said region is generally at least materialized by a printed indication on the side wall, but it may also be further materialized by at least one line of greater weakness, preferably one on each side wall, made for instance of a thinner material, or a different material, or a partially preperforated material.
  • said line of weakness can comprise a notch or a slit which assists in starting tearing the pouch along said line.
  • the pouches herein are made of a sheet-like flexible material.
  • flexible it is meant herein a material such that the pouch can be rolled or folded before it is disposed of.
  • the suitable material to be used further depends on the goods to be contained in the pouch.
  • Suitable goods to be contained in the pouches herein include granular and liquid materials. Particularly In the case where liquid goods are to be contained, it is generally suitable to use predominantly thermoplastic materials.
  • thermoplastic materials A great variety of such materials have been disclosed in the art, including various polyethylenes, polyamides, polycarbonates, polyester polyvinylidene chloride, nylons, polyolefins polyvinyl chlorides etc., and mixtures thereof. It is a general object of the present invention to use materials which are as thin as possible. Accordingly, sheet-like thermoplastic materials having a thickness of from 10 to 500 micrometers, preferably 100 to 250, are suitable to manufacture pouches having an internal volume of at least 5 liters.
  • the pouches of the present invention are inflated before they are closed.
  • Pouches according to the present invention differ from conventional pouches in that the headspace folds substantially less, or not at all, and the side walls in the headspace tend not to be in contact one with the other, except for the sealing lines.
  • the side walls only come in contact at the sealing lines on the entire pouch.
  • the pouches of the present invention thus appear stiffer, and are more stable.
  • This stiffening effect which is particularly effective in the headspace portion of the pouch, can be further supported in the lower region of the pouch by providing substantially vertical ridges on the side walls of the standing pouch, as described in our co-pending European application 93870118.
  • these stiffening ridges extend from the bottom edge of the pouch up to the headspace.
  • the stiffening ridges extend from the lowest points of said oblique seals up to the headspace.
  • a spontaneous pouring spout is eased as the cut-open region is cut off. This effect is enhanced as the amount of gas inside the pouch increases. If the amount of gas inside the pouch exceeds atmospheric pressure, there will even be a gas outflow as the cut-open region is cut off, further favoring the formation of a spontaneous pouring spout.
  • the formation of a spontaneous pouring spout can be further favored as disclosed in our co-pending European application 93870119, by providing further ridges which extend in the cut-open region on the side walls of the pouch. Preferably said ridges extend outwardly, and at least one ridge is provided on each side wall, and the ridges on the side walls correspond one with the other.
  • the amount of gas to be introduced in the pouch depends, amongst other things, on the dimensions of the pouch, how much it is filled, and the degree of stiffening and ease-of-pouring which is desired. In all cases it can be determined by simple trial and error. It is preferred to inflate enough gas so that the walls of the pouch only come in contact at their sealing lines. Also, the gas which is used to inflate the pouch may vary, depending mainly on the packaging material and the goods to be contained. The most economical and safe embodiment is to use atmospheric air. Generally, the pouches according to the invention can be manufactured by assembling all of the pouch except a filling region, generally the top portion of the pouch, in a gas-tight manner.
  • the pouch is filled with the goods it is to contain and it is inflated with the appropriate amount of gas. Inflation may occur while the pouch is being filled, or preferably after it is filled, before it is closed in a gas tight manner.
  • one of the last step is the closing of the last portion of the pouch, the upper portion, after the pouch is filled.
  • closing means are usually heated jaws which grab and heat seal the side walls of the pouch at their top edges. This state of the art equipment can be easily modified by adding a gas pipe in the region of said jaws, e.g. about in between said jaws, and by synchronizing gas inlet with the action of the jaws.
  • a pouch is made which is 250mm wide, 235 mm height and which has a gusset of 50mm.
  • the material used is a laminate comprising a 190 micrometers layer of polyethylene and a 12 micrometers layer of polyethylene terephthalate.
  • the pouch is assembled in a conventional manner, i.e. all seals are formed except for the top seal. 2 liters of a liquid detergent composition are then introduced in the pouch. In a pre-sealing operation, the top edge of the pouch is stretched and about 0.3 Liters of air are introduced by means of an air nozzle while the top edge of the pouch is being sealed around the nozzle. The seal is strengthened and completed in a final sealing operation after the nozzle has been removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

L'invention se rapporte à des sachets se tenant droits par eux-mêmes, fabriqués dans un matériau flexible, contenant des marchandises et qui sont gonflés pendant leur fabrication, avant leur fermeture. On obtient ainsi des sachets gonflés qui sont faits dans un matériau flexible et sont cependant sensiblement plus rigides que des sachets similaires mais non gonflés. Les sachets ainsi obtenus se tiennent droits d'une manière stable et sont moins enclins à se plier. Dans un mode de réalisation préférée, les sachets comprennent une zone qui s'ouvre lorsqu'on la coupe, et un goulot de versement se forme tout seul au moment où on découpe ladite zone.
PCT/US1994/013096 1993-11-15 1994-11-14 Sachet flexible, gonfle, se tenant droit par lui-meme WO1995013971A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7514542A JPH09505260A (ja) 1993-11-15 1994-11-14 膨張させた自立可撓袋

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93203170.1 1993-11-15
EP93203170A EP0654418A1 (fr) 1993-11-15 1993-11-15 Poche flexible tenant debout gonflée

Publications (1)

Publication Number Publication Date
WO1995013971A1 true WO1995013971A1 (fr) 1995-05-26

Family

ID=8214167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/013096 WO1995013971A1 (fr) 1993-11-15 1994-11-14 Sachet flexible, gonfle, se tenant droit par lui-meme

Country Status (3)

Country Link
EP (1) EP0654418A1 (fr)
JP (1) JPH09505260A (fr)
WO (1) WO1995013971A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0021112D0 (en) 2000-08-25 2000-10-11 Reckitt & Colmann Prod Ltd Improvements in or relating to containers
GB0020964D0 (en) 2000-08-25 2000-10-11 Reckitt & Colmann Prod Ltd Improvements in or relating to containers
US20030136701A1 (en) * 2001-12-14 2003-07-24 Unilever Home And Personal Care Usa, Laundry pouch
RU2606941C2 (ru) 2012-05-07 2017-01-10 Дзе Проктер Энд Гэмбл Компани Эластичные контейнеры
EP2879971B1 (fr) 2012-08-06 2017-02-01 The Procter & Gamble Company Procédés de fabrication de récipients souples
JP2016530170A (ja) 2013-08-01 2016-09-29 ザ プロクター アンド ギャンブル カンパニー 空気充填構造支持容積を有する薄膜壁付き包装との触覚相互作用の強化
CN105408226B (zh) 2013-08-01 2018-06-08 宝洁公司 具有表面元件的一次性柔性容器
EP3027529B1 (fr) 2013-08-01 2017-10-04 The Procter and Gamble Company Contenants flexibles à soudure améliorée et leurs procédés de fabrication
US11136166B2 (en) 2015-09-28 2021-10-05 Bemis Company, Inc. Pouch with flexible self-sealing dispensing valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751953A (en) * 1953-10-01 1956-06-26 Bruce F Grimm Collapsible container
US4361235A (en) * 1978-02-15 1982-11-30 Societe Generale Des Eaux Minerales De Vittel Containers made of thin pliable synthetic material, and process of manufacturing it
US5048977A (en) * 1987-02-11 1991-09-17 Robbins Edward S Iii Ribbed free-standing enclosure
US5059035A (en) * 1990-02-12 1991-10-22 Colgate-Palmolive Company Flexible pouch with folded spout
US5134875A (en) * 1990-09-28 1992-08-04 Jensen Richard E Breath alcohol simulator solution containers and method of using same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL126868C (fr) * 1962-11-14 1900-01-01
DE8900366U1 (fr) * 1989-01-13 1989-08-03 Indag Gesellschaft Fuer Industriebedarf Mbh, 6904 Eppelheim, De
DE69223743T2 (de) * 1991-05-29 1998-04-16 Sumitomo Bakelite Co Standbodenbeutel sowie verfahren und vorrichtung zu dessen herstellung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751953A (en) * 1953-10-01 1956-06-26 Bruce F Grimm Collapsible container
US4361235A (en) * 1978-02-15 1982-11-30 Societe Generale Des Eaux Minerales De Vittel Containers made of thin pliable synthetic material, and process of manufacturing it
US5048977A (en) * 1987-02-11 1991-09-17 Robbins Edward S Iii Ribbed free-standing enclosure
US5059035A (en) * 1990-02-12 1991-10-22 Colgate-Palmolive Company Flexible pouch with folded spout
US5134875A (en) * 1990-09-28 1992-08-04 Jensen Richard E Breath alcohol simulator solution containers and method of using same

Also Published As

Publication number Publication date
JPH09505260A (ja) 1997-05-27
EP0654418A1 (fr) 1995-05-24

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