EP0251757A2 - Réceptacles flexibles pour liquides - Google Patents

Réceptacles flexibles pour liquides Download PDF

Info

Publication number
EP0251757A2
EP0251757A2 EP87305760A EP87305760A EP0251757A2 EP 0251757 A2 EP0251757 A2 EP 0251757A2 EP 87305760 A EP87305760 A EP 87305760A EP 87305760 A EP87305760 A EP 87305760A EP 0251757 A2 EP0251757 A2 EP 0251757A2
Authority
EP
European Patent Office
Prior art keywords
container
skins
spacer structure
bag
wall
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Withdrawn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
EP87305760A
Other languages
German (de)
English (en)
Other versions
EP0251757A3 (fr
Inventor
David Charles Gill
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.)
Nomix Manufacturing Co Ltd
Original Assignee
Nomix Manufacturing Co Ltd
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 Nomix Manufacturing Co Ltd filed Critical Nomix Manufacturing Co Ltd
Publication of EP0251757A2 publication Critical patent/EP0251757A2/fr
Publication of EP0251757A3 publication Critical patent/EP0251757A3/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Withdrawn legal-status Critical Current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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls

Definitions

  • This invention relates to containers for liquids, and is particularly, although not exclusively, concerned with portable containers for herbicide which is to be delivered from hand-held equipment connected to the container.
  • the cost of the box and in particular the cost of erecting it from a flat blank, inserting the filled bag and then closing the box, is a major element in the cost of the package as whole.
  • the bag is vulnerable to puncturing, particularly when used outside for delivering herbicides.
  • a container for liquids having a liquid­impermeable wall of which at least part is formed from two skins of flexible material and a spacer structure disposed between the two skins whereby, in use, the two skins are spaced apart from each other.
  • a container in accordance with the present invention may thus take the form of a flexible, double­skinned bag.
  • the outer skin effectively prevents puncturing of the inner skin.
  • the spacing between the skins, which is established by the spacer structure may, for example, be in the range 2 to 25 mm, and is preferably in the range 5 to 12 mm.
  • Both of the skins may be made from the same material, preferable plastics material such as polyvinyl chloride or a polyolefin (for example polyethylene).
  • a preferred material, at least for the outer skin, is high density linear polyethylene.
  • the skins may have the same thickness as each other, or one of the skins, such as the outer skin, may be thicker than the other to provide additional strength.
  • a liner may be disposed inside the inner skin, and may or may not be laminated to the inner skin.
  • the spacer structure comprises voids, and may be made from flexible material; it may be made from the same material as at least one of the skins. Where both of the skins and the spacer structure are made from a plastics material, they can be bonded together by welding. In an alternative embodiment, the spacer structure may be made from a material such as cardboard.
  • the spacer structure may have a honeycomb form.
  • the spacer structure may be manufactured from sheets of plastics material welded together at spaced locations to provide elongate cells extending transversely of the skins.
  • the spacer structure may comprise one or more sheets of material, such as cardboard, which are fluted to provide elongate channels extending parallel to the skins.
  • the spacer structure comprises a flexible sheet which is bonded to one of the skins at locations which define a series of gas-filled pockets or "bubbles". The tops of the bubbles may be bonded to the other skin. The bubbles hold the skins apart and also serve to cushion the wall of the bag from impact.
  • the wall structure shown in Figure 1 comprises two skins 2 and 4 which are spaced apart by a spacer structure 6.
  • the skin 2 would be exposed to the outside, with the skin 4 on the inside.
  • a liner 8 is provided adjacent the inner skin 4, but is not bonded to the inner skin 4 except at edge regions, as will be described later.
  • the spacer structure 6 comprises a plastics sheet which is bonded to the inner skin 4 at regions 10. These regions 10 define "bubbles" 12 which extend away from the inner skin 4 and are bonded at their tops to the outer skin 2.
  • the bubbles 12 define pockets 15 which contain gas (normally air). Each pocket 15 may be substantially gas tight, although it is acceptable for there to be some leakage across the regions 10 between adjacent bubbles 12.
  • the skins 2 and 4, the spacer structure 6 and the liner 8 may all be made from substantially the same material, although the thicknesses may vary. Also, it may be desirable, for example, for the liner 8 to have special properties in order to avoid deterioration of the liquid to be contained in the bag. Similarly, the outer skin 2 may be provided with printed material identifying the nature of the contents of the bag, and information regarding its use.
  • Figures 2 and 3 represent a bag formed from the material shown in Figures 1 and 1A.
  • the bag is generally pillow shaped and is provided with an outlet fitting 14.
  • the bag is formed by joining together two sheets of the material at edge regions. The sheets may be joined by welding at seams 16. To ensure that the bag is leak­proof, it may be desirable for two or more spaced seams 16 to be provided, rather than the single seam as shown.
  • FIGs 4 and 5 show an alternative embodiment.
  • the spacer structure 6 ⁇ stops short of the seam 16 ⁇ . This avoids problems which may otherwise arise where, as in the embodiment of Figures 3 and 4, the weld 16 is formed across the spacer structure 6.
  • the spacer structure 6 ⁇ is a separate element from the inner skin 4 ⁇ , and may be retained, in an unsecured manner, between the inner and outer skins 2, 4.
  • the seam 16 ⁇ includes two oblique portions 18 which slope towards the lower edge of the outlet fitting 14 ⁇ , in the position shown in Figure 4. This arrangement assists in the substantially complete emptying of the bag, without residual amounts of the contents becoming trapped in the corners. Furthermore, it will be noted that the spacer structure 6 ⁇ stops short of the outlet fitting 14 ⁇ to avoid difficulties in welding the outlet fitting 14 ⁇ to the material of the bag.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Laminated Bodies (AREA)
EP87305760A 1986-06-30 1987-06-29 Réceptacles flexibles pour liquides Withdrawn EP0251757A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08615932A GB2201394A (en) 1986-06-30 1986-06-30 Flexible container for liquids
GB8615932 1986-06-30

Publications (2)

Publication Number Publication Date
EP0251757A2 true EP0251757A2 (fr) 1988-01-07
EP0251757A3 EP0251757A3 (fr) 1989-03-22

Family

ID=10600322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87305760A Withdrawn EP0251757A3 (fr) 1986-06-30 1987-06-29 Réceptacles flexibles pour liquides

Country Status (9)

Country Link
EP (1) EP0251757A3 (fr)
JP (1) JPS6333258A (fr)
AU (1) AU7473487A (fr)
BR (1) BR8703335A (fr)
DK (1) DK332887A (fr)
GB (1) GB2201394A (fr)
NO (1) NO872719L (fr)
PT (1) PT85195A (fr)
ZA (1) ZA874633B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301148A1 (fr) * 1987-07-31 1989-02-01 Luigi Frateschi Sac isotherme
ES2033572A1 (es) * 1990-05-02 1993-03-16 Rhone Poulenc Agriculture Saquitos solubles.
US5280835A (en) * 1990-05-02 1994-01-25 Rhone-Poulenc Inc. Laminated bags for containerization of toxic and hazardous materials
GB2407246A (en) * 2003-10-23 2005-04-27 Reginald Charles David Vint A method of selective application of herbicides to a plant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213464A (en) * 1987-12-09 1989-08-16 Joan Patricia Finch Protective carrying arrangement for bottles
US5005679A (en) * 1990-02-06 1991-04-09 Hjelle Kurt R Tote bags equipped with a cooling chamber

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB805106A (en) * 1955-03-21 1958-11-26 Us Rubber Co Improvements in method of making rubber containers
US3304219A (en) * 1962-05-02 1967-02-14 Little Inc A Energy absorbing materials
GB1029870A (en) * 1964-12-24 1966-05-18 Dependable Packs Ltd An improved packing
US3294389A (en) * 1965-06-29 1966-12-27 Marc A Chavannes Laminated cellular material
FR1482327A (fr) * 1966-06-03 1967-05-26 Spiess C F & Sohn Récipient pour pâte ou liquide
GB1186909A (en) * 1967-11-24 1970-04-08 Dependable Packs Ltd Improvements in or relating to Cushion Packaging Materials
ZA717126B (en) * 1971-03-04 1972-08-30 Sealed Air Corp Protective containers and methods of making the same
GB1393091A (en) * 1971-06-09 1975-05-07 Ici Ltd Packaging
US3768724A (en) * 1971-12-20 1973-10-30 W Hill Cushioned shipping bag
US4407874A (en) * 1982-08-06 1983-10-04 American Can Company Sterilizable flexible packaging structure
GB2136321B (en) * 1982-11-30 1986-04-09 Gill D C Spraying equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301148A1 (fr) * 1987-07-31 1989-02-01 Luigi Frateschi Sac isotherme
FR2618765A1 (fr) * 1987-07-31 1989-02-03 Frateschi Luigi Sac isotherme
ES2033572A1 (es) * 1990-05-02 1993-03-16 Rhone Poulenc Agriculture Saquitos solubles.
US5280835A (en) * 1990-05-02 1994-01-25 Rhone-Poulenc Inc. Laminated bags for containerization of toxic and hazardous materials
ES2065293A1 (es) * 1990-05-02 1995-02-01 Rhone Poulenc Agriculture Saquitos solubles para envasar productos quimicos peligrosos, excepto agroquimicos.
GB2407246A (en) * 2003-10-23 2005-04-27 Reginald Charles David Vint A method of selective application of herbicides to a plant

Also Published As

Publication number Publication date
BR8703335A (pt) 1988-03-15
EP0251757A3 (fr) 1989-03-22
DK332887A (da) 1988-12-31
ZA874633B (en) 1988-03-30
DK332887D0 (da) 1987-06-29
NO872719L (no) 1988-01-04
AU7473487A (en) 1988-01-07
GB8615932D0 (en) 1986-08-06
GB2201394A (en) 1988-09-01
PT85195A (pt) 1988-07-01
JPS6333258A (ja) 1988-02-12
NO872719D0 (no) 1987-06-29

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Inventor name: GILL, DAVID CHARLES