EP0301148A1 - Isolierbeutel - Google Patents

Isolierbeutel Download PDF

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Publication number
EP0301148A1
EP0301148A1 EP87440055A EP87440055A EP0301148A1 EP 0301148 A1 EP0301148 A1 EP 0301148A1 EP 87440055 A EP87440055 A EP 87440055A EP 87440055 A EP87440055 A EP 87440055A EP 0301148 A1 EP0301148 A1 EP 0301148A1
Authority
EP
European Patent Office
Prior art keywords
sheets
bag
face
polyethylene
bags
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.)
Granted
Application number
EP87440055A
Other languages
English (en)
French (fr)
Other versions
EP0301148B1 (de
Inventor
Luigi Frateschi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT87440055T priority Critical patent/ATE70019T1/de
Publication of EP0301148A1 publication Critical patent/EP0301148A1/de
Application granted granted Critical
Publication of EP0301148B1 publication Critical patent/EP0301148B1/de
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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3888—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation wrappers or flexible containers, e.g. pouches, bags
    • B65D81/3893—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation wrappers or flexible containers, e.g. pouches, bags formed with double walls, i.e. hollow

Definitions

  • the present invention relates to bags intended for the transport of so-called frozen products, which must be carried out under isothermal conditions for the preservation of these products.
  • the most rustic realization comprises two paper bags housed one inside the other.
  • the air layer between the two bags is so thin that the real but very relative insulation provided by this means is only useful for very short transport in moderate climatic conditions.
  • a much more efficient embodiment consists in making a double-walled bag each consisting of two sheets of flexible plastic material, generally of polyethylene, separated by a layer of foam or fiber material, ensuring the spacing between the two sheets and the presence of air in the space separating them.
  • the effectiveness of these bags is satisfactory, but the presence of the spacer material has the disadvantage of making the walls of the bag relatively rigid, while it is desirable on the contrary, that a bag is flexible to conform to the trans products. - doors.
  • the present invention aims to eliminate all the drawbacks of previously known insulated bags, by proposing a new double-walled polyethylene bag, having both excellent insulation qualities and perfect flexibility. It also relates to a simple process for the manufacture of these new bags.
  • the new insulated bag has double walls made of polyethylene sheet, as is known, but the material ensuring the spacing between the two walls is constituted by a sheet of also known type, in the form of a thin polyethylene film on one side of which are distributed bubbles or blisters filled with air.
  • a sheet is used for wrapping and packaging fragile objects, because of its mechanical qualities, the bubbles exerting a protective action against shocks, but it had never been used for other applications.
  • such a sheet has a uniform thickness, equal to the thickness of the bubbles, therefore ensures in the bag according to the invention double walls separated by a layer of air of constant thickness, which guarantees uniform insulation properties. throughout the volume of the bag, and at the same time, it has the flexibility of the film carrying the bubbles, since these bubbles do not hinder the deformations of this film. Since the bubble sheet is much lighter than the previous foam or fiber material, such a bag is therefore both perfectly effective and more comfortable and pleasant to use than all the bags previously offered for this use.
  • the invention also relates to a simple process for the manufacture of these bags.
  • This process is of the continuous type, and consists in continuously simultaneously extruding two sheets of polyethylene, in folding together along their middle these two sheets, in simultaneously causing the welding and the cutting at equal longitudinal intervals of the product constituted by the two sheets. thus folded, to form blanks for bags to insert between the two walls a bubble wrap as defined above and finally to weld on the edges exterior of this blank reinforcement strips comprising handles, this weld immobilizing at the same time the corresponding edges of the bubble wrap.
  • This welding has a multiple role: to stiffen the two edges of the bags, to immobilize the edge of the films 3-4 to prevent them from sliding into the bottom of the space between the sheets 1-2, and ensure, by press stud systems 7-8, the closing of the top of the bags.
  • the final product C obtained at the end of the operation, conforms to that illustrated in section on a larger scale in FIG. 1.
  • the bag has a continuous double wall, the two faces of which are kept at constant distance by air bubbles 4, themselves providing thermal insulation, without affecting the flexibility of this wall, provided by the thinness of the film 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Buffer Packaging (AREA)
  • Laminated Bodies (AREA)
EP87440055A 1987-07-31 1987-09-17 Isolierbeutel Expired - Lifetime EP0301148B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87440055T ATE70019T1 (de) 1987-07-31 1987-09-17 Isolierbeutel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8711085A FR2618765B1 (fr) 1987-07-31 1987-07-31 Sac isotherme
FR8711085 1987-07-31

Publications (2)

Publication Number Publication Date
EP0301148A1 true EP0301148A1 (de) 1989-02-01
EP0301148B1 EP0301148B1 (de) 1991-12-04

Family

ID=9353885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87440055A Expired - Lifetime EP0301148B1 (de) 1987-07-31 1987-09-17 Isolierbeutel

Country Status (6)

Country Link
EP (1) EP0301148B1 (de)
JP (1) JPS6458684A (de)
AT (1) ATE70019T1 (de)
DE (1) DE3775056D1 (de)
FR (1) FR2618765B1 (de)
MC (1) MC1842A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0710608A1 (de) * 1994-11-01 1996-05-08 Oria Seeff Isolierter Tragbehälter
US5595320A (en) * 1994-12-01 1997-01-21 Aghassipour; Xerxes K. Insulated bag for beer keg
US5706969A (en) * 1995-03-27 1998-01-13 Nippon Sanso Corporation Insulated container, insulating material, and manufacturing method of the insulated container
US6200029B1 (en) * 2000-01-05 2001-03-13 David G. Bonta Heat retaining container and method of forming same
FR2845352A1 (fr) * 2002-10-08 2004-04-09 Papiers Paviot Procede de conditionnement de produits perissables notamment alimentaires et emballage pour la mise en oeuvre du procede
WO2006095038A2 (es) * 2005-03-11 2006-09-14 Sensigrade Limited Contenedor istoérmico con elemento de refrigeración

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0356543U (de) * 1989-10-03 1991-05-30
JPH1047712A (ja) * 1996-08-06 1998-02-20 Kansai Electric Power Co Inc:The 冷暖房システム
KR101825273B1 (ko) * 2012-08-06 2018-02-02 더 프록터 앤드 갬블 캄파니 가요성 용기를 제조하는 방법
JP6569028B2 (ja) * 2017-10-05 2019-08-28 奈津子 小川 保冷用包装材

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394390A1 (fr) * 1977-06-16 1979-01-12 Peckre Freres Et Turpin Ets Procede de fabrication d'un emballage multi-couche plat et emballage ainsi fabrique
EP0085534A1 (de) * 1982-01-28 1983-08-10 The British Petroleum Company p.l.c. Isolierbehälter, namentlich Isoliertragetasche oder Isolierbeutel
EP0174159A2 (de) * 1984-08-30 1986-03-12 Douglas Kitchener Gatward Tragbeutel mit Wärmeisolation
EP0251757A2 (de) * 1986-06-30 1988-01-07 Nomix Manufacturing Co. Limited Flexible Behältnisse für Flüssigkeiten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394390A1 (fr) * 1977-06-16 1979-01-12 Peckre Freres Et Turpin Ets Procede de fabrication d'un emballage multi-couche plat et emballage ainsi fabrique
EP0085534A1 (de) * 1982-01-28 1983-08-10 The British Petroleum Company p.l.c. Isolierbehälter, namentlich Isoliertragetasche oder Isolierbeutel
EP0174159A2 (de) * 1984-08-30 1986-03-12 Douglas Kitchener Gatward Tragbeutel mit Wärmeisolation
EP0251757A2 (de) * 1986-06-30 1988-01-07 Nomix Manufacturing Co. Limited Flexible Behältnisse für Flüssigkeiten

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0710608A1 (de) * 1994-11-01 1996-05-08 Oria Seeff Isolierter Tragbehälter
US5624048A (en) * 1994-11-01 1997-04-29 Sander; Ronen Insulated carrying container
AU694152B2 (en) * 1994-11-01 1998-07-16 Seeff, Oria Insulated carrying container
US5595320A (en) * 1994-12-01 1997-01-21 Aghassipour; Xerxes K. Insulated bag for beer keg
US5706969A (en) * 1995-03-27 1998-01-13 Nippon Sanso Corporation Insulated container, insulating material, and manufacturing method of the insulated container
US6200029B1 (en) * 2000-01-05 2001-03-13 David G. Bonta Heat retaining container and method of forming same
FR2845352A1 (fr) * 2002-10-08 2004-04-09 Papiers Paviot Procede de conditionnement de produits perissables notamment alimentaires et emballage pour la mise en oeuvre du procede
WO2004033338A1 (fr) * 2002-10-08 2004-04-22 Papiers A Paviot Procede de conditionnement de produits perissables et emballage pour produits perissables
WO2006095038A2 (es) * 2005-03-11 2006-09-14 Sensigrade Limited Contenedor istoérmico con elemento de refrigeración
WO2006095038A3 (es) * 2005-03-11 2006-11-02 Sensigrade Ltd Contenedor istoérmico con elemento de refrigeración

Also Published As

Publication number Publication date
EP0301148B1 (de) 1991-12-04
FR2618765A1 (fr) 1989-02-03
FR2618765B1 (fr) 1990-01-26
JPS6458684A (en) 1989-03-06
MC1842A1 (fr) 1988-09-30
ATE70019T1 (de) 1991-12-15
DE3775056D1 (de) 1992-01-16

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