EP0593445B1 - Sachet scelle a bec d'ouverture par arrachement - Google Patents
Sachet scelle a bec d'ouverture par arrachement Download PDFInfo
- Publication number
- EP0593445B1 EP0593445B1 EP90917441A EP90917441A EP0593445B1 EP 0593445 B1 EP0593445 B1 EP 0593445B1 EP 90917441 A EP90917441 A EP 90917441A EP 90917441 A EP90917441 A EP 90917441A EP 0593445 B1 EP0593445 B1 EP 0593445B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pouch
- fluid
- spout
- defines
- sealed
- 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
Links
Images
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
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5816—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion
- B65D75/5822—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion and defining, after tearing, a small dispensing spout, a small orifice or the like
-
- 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
- Our invention relates, in general, to sealed pouches made of molecularly-orientable polymeric film that is sealed along peripheral edge margins.
- Plastic film of, for example, polyethylene or polypropylene is virtually impossible to tear directly along a straight or other regular line. This is due to the fact that two forces, when applied in opposite directions in shear or tension over an area of such a film or thin sheet, can cause the plastic film material to deform and stretch plastically until its elastic limit is passed, whereupon a tear or separation starts. Such a tear can begin anywhere in the deformed, stretched area -- which is usually at the weakest point produced by the above-described thickness reduction -- and will not, in general, run normal to the tearing forces being applied. Thus, even with evenly and carefully applied forces, it is not likely that a person will be able to tear a plastic film along a preselected straight or other regular line due to the stretchability of the film.
- the sealed pouch is made of a molecularly-orientable polymeric film that is sealed along peripheral edge margins.
- the pouch defines a sealed cavity for containment of a fluid.
- the pouch also defines a sealed fluid-discharge spout that is in fluid communication with the fluid cavity.
- the pouch further defines a seam disposed between the fluid cavity and the spout.
- the improvement comprises at least three essential features.
- One such feature is that a portion of the polymeric film which defines a fluid-discharge end of the spout is molecularly-oriented in a preselected direction.
- Another such feature is that a portion of the seam defines a slit disposed transverse to the preselected direction.
- Still another feature is that a portion of the sealed pouch peripheral edge margin in the vicinity of the fluid-discharge end of the spout defines a tear-initiating notch oriented along the preselected direction.
- Figure 1 is a perspective view of one embodiment of our present invention.
- Figure 2 is a sectional view, taken along the plane 2-2 in Figure 1, and slightly enlarged relative to Figure 1.
- Figure 3 is a fragmented sectional view, taken along the lines 3-3 in Figure 2 and on an enlarged scale.
- Figure 4 is a fragmented sectional view of another embodiment of our present invention, illustrating the tear-open spout.
- Figure 5 is a fragmented sectional view, similar to Figure 4, but illustrating the now torn-open spout.
- Figure 6 is a perspective view of still another embodiment of our present invention.
- Figure 7 is a sectional view, taken along the plane 7-7 in Figure 6, and slightly enlarged relative to Figure 6.
- Figure 8 is a fragmented sectional view, generally taken along the line 8-8 in Figure 7 and on an enlarged scale.
- edge margins of flexible plastic pouches can be joined continuously utilizing such sealing methods as heat-and-pressure, radio-frequency welding, induction heating, solvent joining, or an adhesive. See, for example, U.S. Pat. No. 4,838,429 to Fabisiewicz et al.
- the sealed pouch 20A is made of a molecularly-orientable, flexible polymeric film that is sealed along peripheral edge margins.
- thermoplastic sheet or film materials typically used in making flexible pouches or containers, whether blown, rolled, cast, or die-extruded, are molecularly directionally orientable to some degree.
- certain thermoplastic sheet or film materials can be intentionally oriented by stretching in a predetermined direction. See, e.g., U.S. Pat. No. 4,838,429 to Fabisiewicz et al.
- molecularly-orientable materials include polypropylene, polyethylene, and polystyrene. See, e.g., U.S. Pat. No. 3,608,815 to Bunch.
- the pouch 20A defines a sealed cavity 22A for containment of a fluid "F".
- the pouch 20A also defines a sealed fluid-discharge spout 24A that is in fluid communication with the fluid cavity 22A.
- the sealed spout 24A can be serpentine as shown in Figures 1 through 3; or, in the alternative, either a relatively straight, sealed spout 24B disposed at an acute angle relative to cavity 22B ( Figure 4) or an elongated, sealed spout 24C having inwardly-disposed spout indents 25 ( Figures 6-8) would be suitable for purposes of our present invention.
- the pouch 20A further defines a sealed seam 26A disposed between the fluid cavity 22A and the spout 24A.
- the improvement comprises at least three essential features.
- a portion 28A of the polymeric film which defines a fluid-discharge end of the spout 24A is molecularly-oriented in a preselected direction. Dashed lines are shown in Figures 1-3 (at portion 28A), in Figure 4 (at portion 28B), and in Figures 6-8 (at portion 28C), for purposes of illustrating our preferred, preselected direction of molecular orientation in the polymeric film of the pouch of our present invention.
- the polymeric film material that we prefer to use, for purposes of achieving this feature or aspect of our invention is either molecularly-orientable polyethylene or polypropylene.
- film thickness is a matter of design choice, in view of factors such as economic considerations and fluids that are to be contained, as is well known to those skilled in the art.
- a portion of the seam 26A defines a slit 30A, which completely penetrates the film material and which is disposed transverse to the preselected direction of molecular orientation of the polymeric film, such direction of molecular orientation being illustrated by portion 28A at the discharge end of sealed spout 24A.
- the slit 30A can be straight, as shown in Figures 1 through 3; or the slit 30B can be arcuate, as shown in Figure 4.
- An elongated slit 30C shown in Figures 6 through 8 and further discussed hereinbelow, is still another embodiment.
- Still another feature of the improved pouch of our present invention is that a portion of the sealed pouch peripheral edge margin in the vicinity of the fluid-discharge end of sealed spout 24A defines a tear-initiating notch 32A.
- the notch 32A is located in the vicinity of that portion 28A of the polymeric film which defines the fluid-discharge end of sealed spout 24A and is oriented in the direction of molecular orientation of the polymeric film.
- One end 34A of the slit 30A preferably extends so far inwardly into the seam 26A as to effectively terminate any tear initiating at notch 32A.
- a like arrangement is shown in Figure 4 relative to notch 32B, slit 30B, slit terminal end 34B, and seam 26B.
- the remainder of slit 30A can totally sever an edge margin of pouch 20A, or as shown in Figure 4 can terminate in the edge margin just short of severing the same.
- the amount of edge margin thus left unsevered is minimal, enabling the corner 38B (Figure 4) of the pouch 20B to be readily removed from the remainder of the pouch edge margin without causing undesired fluid leakage from the cavity 22B of the pouch 20B.
- propagation of the tear from the notch 32B to the slit 30B, and tearing away the removable corner 38B ( Figure 4) from the edge margin of the pouch 20B results in a pouch 20B having a spout which, in turn, has an open discharge end 36B ( Figure 5).
- Such an illustrated embodiment of our pouch 20A includes cavity indents 40 and 41 defined by the pouch edge margins and disposed inwardly into the cavity 22A.
- the cavity indents 40 and 41 are so located relative to the closed serpentine spout 24A, defined by upper edge margin 42 of pouch 20A, as to enable a user to force fluid from cavity 22A into serpentine spout 24A by exerting pressure on the fluid contained in pouch 20A, via the pouch sidewalls, with minimal deformation occurring in upper margin 42.
- deformation of upper margin 42 would tend to restrict flow of fluid through serpentine spout 24A.
- the indents 40 and 41 are not an essential feature of our present invention, although inclusion of such are presently preferred by us. Accordingly, as those skilled in the art can well appreciate, certain pouches incorporating the three above-discussed essential features of our invention, but not including the indents 40 and/or 41, can be manufactured if desired.
- the spout 24C and seam 26C can each be elongated; and the slit 30C can be elongated and so inwardly disposed relative to the seam 26C as to locate the seam inner end 34C at a point that is effective for forming an upper edge margin flap 44 which defines the elongated spout 24C.
- the flexible nature of the polymeric material of the pouch 20C enables a user to flex the flap 44 out of a plane defined by the remainder of the sealed upper edge margin of the pouch 20C, to thus direct the flow of fluid through elongated spout 24C if desired.
- One purpose of the spout indents 25 is to provide a means for controlling fluid discharge rate, within predetermined limits, when a user is intentionally forcing fluid through the elongated spout 24C.
- Another purpose of the spout indents 25 is to minimize fluid discharge rate when a user is unintentionally forcing fluid through the elongated spout 24C, as happens when an open pouch is passed from one user to another. Still another purpose of the spout indents 25 is to restrict flow of fluid through the elongated spout 24C when the pouch is not in use, as happens, for example, when the pouch is unintentionally left on its side.
- the pouch of the present invention can contain a variety of fluids such as shampoo and conditioner, shower and shaving gels, shower and bath oil, hand and body lotion, moisturizing cream, dish-washing detergent, liquid hand soap, liquid laundry detergent and stain remover, liquid automotive products such as windshield-washer fluid, catsup and mustard, salad dressing and jelly, liquid dairy products such as milk and yogurt, and various beverages such as fruit juice, soft drinks, mineral water and the like as well as fluid-like, pourable powders such as laundry detergents, household cleaners, and the like.
- fluids such as shampoo and conditioner, shower and shaving gels, shower and bath oil, hand and body lotion, moisturizing cream, dish-washing detergent, liquid hand soap, liquid laundry detergent and stain remover, liquid automotive products such as windshield-washer fluid, catsup and mustard, salad dressing and jelly, liquid dairy products such as milk and yogurt, and various beverages such as fruit juice, soft drinks, mineral water and the like as well as fluid-like, pourable powders such as laundry detergents, household cleaners, and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Making Paper Articles (AREA)
- Packages (AREA)
Abstract
Claims (4)
- Poche scellée le long de bordures périphériques pour définir une cavité scellée (22A) destinée à contenir un fluide, dans laquelle une portion de la bordure de la poche définit un bec scellé (24A) de sortie du fluide en communication fluidique avec la cavité, le bec de sortie de fluide ayant une extrémité de sortie de fluide, et dans laquelle une autre portion (26A) de la bordure de la poche définit une séparation disposée entre la cavité de fluide et le bec, caractérisée en ce que
la poche est faite d'un film de polymère susceptible d'orientation moléculaire ;
la portion (26A) de la bordure de la poche qui définit l'extrémité de sortie du fluide du bec a subi une orientation moléculaire dans une direction présélectionnée ;
la portion (26A) de la séparation disposée entre la cavité de fluide et le bec présente une fente (30A) d'arrêt de déchirure disposée transversalement à la direction présélectionnée ; et
la portion de la bordure de la poche qui définit l'extrémité de sortie de fluide du bec présente une encoche (32A) d'amorçage de la déchirure placée en regard de la fente et qui est orientée selon la direction présélectionnée, la fente traversant entièrement le film de polymère et étant d'une longueur qui est capable d'arrêter toute déchirure partant de l'encoche et aboutissant à la fente en suivant la direction présélectionnée. - Poche selon la revendication 1, dans laquelle la fente coupe une bordure de la poche.
- Poche selon la revendication 1, dans laquelle la fente se termine dans une bordure de la poche.
- Poche selon la revendication 1, dans laquelle le bec, la séparation et la fente sont tous de grande longueur et dans laquelle le bec de grande longueur présente des moyens (25) servant à maîtriser l'écoulement du fluide dans ce bec.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US47441490A | 1990-02-02 | 1990-02-02 | |
US474414 | 1990-02-02 | ||
PCT/US1990/006673 WO1991011366A1 (fr) | 1990-02-02 | 1990-11-13 | Sachet scelle a bec d'ouverture par arrachement |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0593445A4 EP0593445A4 (fr) | 1993-10-01 |
EP0593445A1 EP0593445A1 (fr) | 1994-04-27 |
EP0593445B1 true EP0593445B1 (fr) | 1995-02-01 |
Family
ID=23883424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90917441A Expired - Lifetime EP0593445B1 (fr) | 1990-02-02 | 1990-11-13 | Sachet scelle a bec d'ouverture par arrachement |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0593445B1 (fr) |
JP (1) | JPH05503906A (fr) |
CN (1) | CN1019374B (fr) |
AR (1) | AR247524A1 (fr) |
AT (1) | ATE117959T1 (fr) |
AU (1) | AU6885091A (fr) |
CA (1) | CA2074480A1 (fr) |
DE (1) | DE69016679T2 (fr) |
DK (1) | DK0593445T3 (fr) |
ES (1) | ES2067772T3 (fr) |
GR (1) | GR3014945T3 (fr) |
WO (1) | WO1991011366A1 (fr) |
ZA (1) | ZA909746B (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6095689A (en) * | 1993-12-16 | 2000-08-01 | Socoplan S.A. | Flexible bag with incorporated opening line |
US5411178A (en) * | 1994-03-11 | 1995-05-02 | Beeton Holdings Limited | Fluid dispenser pouch with venturi shaped outlet |
US5906827A (en) * | 1994-06-03 | 1999-05-25 | Creative Biomolecules, Inc. | Matrix for the manufacture of autogenous replacement body parts |
DE20106034U1 (de) | 2001-04-06 | 2001-07-05 | August Töpfer & Co. (GmbH & Co.), 20539 Hamburg | Verpackung für Badesalz |
JP2006256627A (ja) * | 2005-03-15 | 2006-09-28 | Toyo Seikan Kaisha Ltd | 自己閉鎖性注出口を形成した包装袋 |
FR2898343B1 (fr) * | 2006-03-09 | 2008-05-02 | Acp Soc Par Actions Simplifiee | Sachet plat forme par deux faces scellees et contenant une dosette de produit |
DE102009031391A1 (de) * | 2009-07-01 | 2011-01-05 | Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg | Aufreiß-Standbodenbeutel |
CN105377714B (zh) * | 2013-07-03 | 2019-01-01 | 诺赛尔股份有限公司 | 改善带有可折叠再闭合装置的氧化性毛发着色剂袋的再闭合的方法 |
EP3153427B1 (fr) * | 2014-06-04 | 2020-08-05 | Yushin Co., Ltd. | Sac d'emballage |
GB2539479A (en) * | 2015-06-17 | 2016-12-21 | Kazimierz Szymanek Dariusz | Sachet in which after opening one part of the sachet works as a narrow pouring nozzle or a narrow pipe |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2248266A (en) * | 1939-09-25 | 1941-07-08 | William C Abrams | Package |
US2923404A (en) * | 1956-08-30 | 1960-02-02 | Adell Robert | Container for alcoholic beverages |
US3179327A (en) * | 1962-05-24 | 1965-04-20 | Dow Chemical Co | Film tear line |
GB1015383A (en) * | 1963-10-03 | 1965-12-31 | Arenco Ab | Improvements in or relating to easily openable bags |
US3579397A (en) * | 1966-08-16 | 1971-05-18 | Windmoeller & Hoelscher | Process of manufacturing bags having tear strips and consisting of synthetic thermoplastics |
US3510054A (en) * | 1968-07-23 | 1970-05-05 | Dino Di Carlo | Dispenser packet |
US3616990A (en) * | 1969-05-01 | 1971-11-02 | Joseph J Powell | Easy-tear arrangement for stretchable plastic film |
US3565328A (en) * | 1969-05-15 | 1971-02-23 | Bemis Co Inc | Multiwall pinch closure bag with opening feature |
US3608815A (en) * | 1969-07-03 | 1971-09-28 | Dixie Wax Paper Co | Opening aid for packages |
AU500105B2 (en) * | 1975-03-05 | 1979-05-10 | Milvik, Michael | One-piece letter sheet |
US4491224A (en) * | 1982-03-05 | 1985-01-01 | C O D Inter Techniques Sa | Weldable tear-off capping film for sealing packages |
US4519499A (en) * | 1984-06-15 | 1985-05-28 | Baxter Travenol Laboratories, Inc. | Container having a selectively openable seal line and peelable barrier means |
US4720011A (en) * | 1986-09-30 | 1988-01-19 | E. I. Du Pont De Nemours And Company | Package having tearstrip opener |
US4838429A (en) * | 1986-10-10 | 1989-06-13 | Baxter International Inc. | Flexible thermoplastic pouches having easy-open tear strip means and apparatus for making same |
US4834245A (en) * | 1988-08-05 | 1989-05-30 | Kabushiki Kaisha Hosokawa Yoko | Pouch having tearing zone for taking out content packed therein |
-
1990
- 1990-11-13 WO PCT/US1990/006673 patent/WO1991011366A1/fr active IP Right Grant
- 1990-11-13 DE DE69016679T patent/DE69016679T2/de not_active Expired - Fee Related
- 1990-11-13 JP JP3500574A patent/JPH05503906A/ja active Pending
- 1990-11-13 AU AU68850/91A patent/AU6885091A/en not_active Abandoned
- 1990-11-13 ES ES90917441T patent/ES2067772T3/es not_active Expired - Lifetime
- 1990-11-13 AT AT90917441T patent/ATE117959T1/de not_active IP Right Cessation
- 1990-11-13 EP EP90917441A patent/EP0593445B1/fr not_active Expired - Lifetime
- 1990-11-13 DK DK90917441.9T patent/DK0593445T3/da active
- 1990-11-13 CA CA002074480A patent/CA2074480A1/fr not_active Abandoned
- 1990-11-27 AR AR90318479A patent/AR247524A1/es active
- 1990-12-03 CN CN90109625A patent/CN1019374B/zh not_active Expired
- 1990-12-04 ZA ZA909746A patent/ZA909746B/xx unknown
-
1995
- 1995-02-02 GR GR940403512T patent/GR3014945T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
DK0593445T3 (da) | 1995-07-17 |
AR247524A1 (es) | 1995-01-31 |
WO1991011366A1 (fr) | 1991-08-08 |
AU6885091A (en) | 1991-08-21 |
GR3014945T3 (en) | 1995-05-31 |
EP0593445A4 (fr) | 1993-10-01 |
DE69016679D1 (de) | 1995-03-16 |
ES2067772T3 (es) | 1995-04-01 |
ZA909746B (en) | 1992-04-29 |
DE69016679T2 (de) | 1995-06-01 |
CA2074480A1 (fr) | 1991-08-03 |
ATE117959T1 (de) | 1995-02-15 |
CN1053774A (zh) | 1991-08-14 |
CN1019374B (zh) | 1992-12-09 |
EP0593445A1 (fr) | 1994-04-27 |
JPH05503906A (ja) | 1993-06-24 |
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