EP1232962A1 - A flexible anti-shock and/or anti-scratch sheet - Google Patents

A flexible anti-shock and/or anti-scratch sheet Download PDF

Info

Publication number
EP1232962A1
EP1232962A1 EP02003716A EP02003716A EP1232962A1 EP 1232962 A1 EP1232962 A1 EP 1232962A1 EP 02003716 A EP02003716 A EP 02003716A EP 02003716 A EP02003716 A EP 02003716A EP 1232962 A1 EP1232962 A1 EP 1232962A1
Authority
EP
European Patent Office
Prior art keywords
sheet
flexible
shock
heat
sheet according
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Withdrawn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
EP02003716A
Other languages
German (de)
French (fr)
Inventor
Dante Vaula
Rocco La Castellana
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.)
Propack SpA
Original Assignee
Propack SpA
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 Propack SpA filed Critical Propack SpA
Publication of EP1232962A1 publication Critical patent/EP1232962A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • B65D81/02—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 specially adapted to protect contents from mechanical damage
    • B65D81/03—Wrappers or envelopes with shock-absorbing properties, e.g. bubble films

Definitions

  • the present invention relates to a flexible anti-shock and/or anti-scratch sheet and which protects against atmospheric agents and from oxidation and corrosion.
  • the object of the present invention is to provide a sheet which can be used to wrap materials or products in order to protect them from the type of deterioration described above.
  • the sheet 2 of the invention includes a smooth surface 4 and a corrugated surface 6 having corrugations 8.
  • the sheet of the invention is produced by heat extrusion and the material used can therefore be for example polyethylene, nylon, polypropylene, PVC, polystyrene, etc. and mixtures thereof, or in any case a plastics material which can be heat extruded.
  • the sheet of the invention is manufactured as follows; the material which is being used is melted in the fusion chamber of an extruder, not shown, and is then heat-extruded at a temperature between 60°C and 350°C, in dependence on the material being used.
  • the material is in the form of a smooth sheet; while it is still hot it is passed between a flat surface and a surface which is the negative of the desired shape of the surface of the finished sheet. Once it has passed through the forming surfaces, the product is cooled and then rolled up or cut to specific sizes of sheets.
  • the manufacturing method could involve the use of self-expanding or heat-expanding resins or other steam-based processes in order to achieve a product which is expanded, by a percentage which could be varied, thereby making the sheet lighter and reducing costs at the same time.
  • the sheet could be either single layered or bonded to a layer of a paper, plant, mineral, plastics, metal or synthetic material, thereby strengthening the product or altering the consistency thereof.
  • Corrosion inhibitors or other inhibitors operable to prevent problems caused by humidity, condensation, sunlight, or either high or low temperatures may be provided; the sheet could also be produced with additives providing protection in the event of contact with chemical agents, oil, grease, soap, solvents, varnishes and the like.
  • the surfaces or sides 4 and 6 could both be corrugated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Materials For Medical Uses (AREA)
  • Wrappers (AREA)

Abstract

A flexible sheet (2) of a plastics material is described which has a smooth surface (4) and an opposite corrugated surface (6); the sheet (2) is obtained by heat-extrusion of a plastics material. The sheet (2) can be used to protect items around which it is wrapped.

Description

  • The present invention relates to a flexible anti-shock and/or anti-scratch sheet and which protects against atmospheric agents and from oxidation and corrosion.
  • During the transport and storage of a wide variety of materials and/or products, it may be necessary to protect them both from being damaged as a result of shocks or scratches and from chemical reactions; they must be protected, for example from corrosion caused by steam condensation, or from sunlight (and atmospheric agents in general), as well as from chemical agents such as oils, grease, soap, solvents and the like.
  • The object of the present invention is to provide a sheet which can be used to wrap materials or products in order to protect them from the type of deterioration described above.
  • This object is achieved according to the invention by providing a flexible sheet of plastics material, having the characteristics specifically claimed in the Claims which follow.
  • The invention will now be described with reference to the appended drawings, supplied purely by way of non-limitative example and in which:
    • Figure 1 is a cross section of a first embodiment of a sheet of the invention;
    • Figure 2 is a perspective view of the sheet of Figure 1; and
    • Figures 3 to 8 are cross sections of second, third, fourth, fifth, sixth and seventh embodiments respectively of the sheet according to the invention.
  • With reference to Figures 1 to 8, the sheet 2 of the invention includes a smooth surface 4 and a corrugated surface 6 having corrugations 8.
  • In a corrugation 8 and the adjacent are present areas 9 deformable by folding.
  • The sheet of the invention is produced by heat extrusion and the material used can therefore be for example polyethylene, nylon, polypropylene, PVC, polystyrene, etc. and mixtures thereof, or in any case a plastics material which can be heat extruded.
  • The sheet of the invention is manufactured as follows; the material which is being used is melted in the fusion chamber of an extruder, not shown, and is then heat-extruded at a temperature between 60°C and 350°C, in dependence on the material being used.
  • During the first step of the extrusion, the material is in the form of a smooth sheet; while it is still hot it is passed between a flat surface and a surface which is the negative of the desired shape of the surface of the finished sheet. Once it has passed through the forming surfaces, the product is cooled and then rolled up or cut to specific sizes of sheets.
  • Naturally, the object of the invention remaining unchanged, embodiments and manufacturing details may vary widely from those described and illustrated, without departing thereby from the scope of the invention. For example, the manufacturing method could involve the use of self-expanding or heat-expanding resins or other steam-based processes in order to achieve a product which is expanded, by a percentage which could be varied, thereby making the sheet lighter and reducing costs at the same time.
  • The sheet could be either single layered or bonded to a layer of a paper, plant, mineral, plastics, metal or synthetic material, thereby strengthening the product or altering the consistency thereof.
  • Corrosion inhibitors or other inhibitors operable to prevent problems caused by humidity, condensation, sunlight, or either high or low temperatures may be provided; the sheet could also be produced with additives providing protection in the event of contact with chemical agents, oil, grease, soap, solvents, varnishes and the like.
  • The surfaces or sides 4 and 6 could both be corrugated.

Claims (5)

  1. A flexible sheet (2) of a plastics material, characterised in that it includes at least one corrugated surface or side (4, 6).
  2. A sheet according to Claim 1, characterised in that one surface (4) is smooth and the opposite surface (6) is corrugated.
  3. A sheet according to Claims 1 or 2, characterised in that the corrugated surface/surfaces (4, 6) has/have areas (9) between one corrugation (8) and the next which can be deformed by folding.
  4. A sheet according to any preceding Claim, characterised in that it is made of a heat-extrudable plastic material.
  5. A method for manufacturing a flexible sheet according to Claims 1 to 4, characterised in that it includes the steps of:
    a) melting the material present in the fusion chamber of an extruder;
    b) heat-extruding the molten material obtaining a sheet;
    c) passing the sheet between two surfaces while it is still hot;
    d) cooling the sheet thus obtained.
EP02003716A 2001-02-20 2002-02-19 A flexible anti-shock and/or anti-scratch sheet Withdrawn EP1232962A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO010150 2001-02-20
IT2001TO000150A ITTO20010150A1 (en) 2001-02-20 2001-02-20 ANTI-SHOCK AND / OR SCRATCH FLEXIBLE SHEET.

Publications (1)

Publication Number Publication Date
EP1232962A1 true EP1232962A1 (en) 2002-08-21

Family

ID=11458588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02003716A Withdrawn EP1232962A1 (en) 2001-02-20 2002-02-19 A flexible anti-shock and/or anti-scratch sheet

Country Status (3)

Country Link
EP (1) EP1232962A1 (en)
ES (1) ES1072074Y (en)
IT (1) ITTO20010150A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1698567A1 (en) * 2005-03-01 2006-09-06 Proxital S.p.A. Protective sheet for packing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574809A (en) * 1968-12-17 1971-04-13 Fmc Corp Method for making oriented webs possessing projecting unoriented sections
GB2089460A (en) * 1980-10-27 1982-06-23 Intertube Protecting a coated metal tube
US4499040A (en) * 1981-04-20 1985-02-12 Nissen Chemical Industries Co., Ltd. Production of stamped plastic sheet
GB2250232A (en) * 1990-11-28 1992-06-03 Sanyo Kakoshi Kk Embossed process paper
EP0767210A1 (en) * 1995-09-22 1997-04-09 Toppan Printing Co., Ltd. Embossed sheet, its laminate and method for producing the same
JPH09109303A (en) * 1995-10-23 1997-04-28 Toppan Printing Co Ltd Foamed embossed decorative sheet and manufacture thereof
JPH09131846A (en) * 1995-11-09 1997-05-20 Toppan Printing Co Ltd Manufacture of embossed sheet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574809A (en) * 1968-12-17 1971-04-13 Fmc Corp Method for making oriented webs possessing projecting unoriented sections
GB2089460A (en) * 1980-10-27 1982-06-23 Intertube Protecting a coated metal tube
US4499040A (en) * 1981-04-20 1985-02-12 Nissen Chemical Industries Co., Ltd. Production of stamped plastic sheet
GB2250232A (en) * 1990-11-28 1992-06-03 Sanyo Kakoshi Kk Embossed process paper
EP0767210A1 (en) * 1995-09-22 1997-04-09 Toppan Printing Co., Ltd. Embossed sheet, its laminate and method for producing the same
JPH09109303A (en) * 1995-10-23 1997-04-28 Toppan Printing Co Ltd Foamed embossed decorative sheet and manufacture thereof
JPH09131846A (en) * 1995-11-09 1997-05-20 Toppan Printing Co Ltd Manufacture of embossed sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1698567A1 (en) * 2005-03-01 2006-09-06 Proxital S.p.A. Protective sheet for packing

Also Published As

Publication number Publication date
ES1072074U (en) 2010-05-17
ES1072074Y (en) 2010-08-12
ITTO20010150A0 (en) 2001-02-20
ITTO20010150A1 (en) 2002-08-20

Similar Documents

Publication Publication Date Title
US3445052A (en) Hinged laminate
KR100186871B1 (en) Biaxially oriented polyethylene film
CA1155744A (en) Method of making a three-dimensional laminate
KR101345476B1 (en) Multi-layer wrap
KR101764406B1 (en) Packing box having heat and cold insulation funtion and method for manufacturing thereof
US6132827A (en) Tacky stretch film and method of making and using the same
WO2013063374A1 (en) Super insulating corrugated cardboard packaging system for food, beverages and perishables
US20200369456A1 (en) Packaging materials and packaging systems
CA2664408C (en) Thermal insulative label
EP1232962A1 (en) A flexible anti-shock and/or anti-scratch sheet
US20140314343A1 (en) Shape-retaining tape, zipper tape, packaging bag, method for manufacturing shape-retaining tape, madhod for manufacturing zipper tape
AU3346301A (en) Protective packaging sheet
KR101060262B1 (en) Multilayered Olefin Heat Shrink Film for Product Packaging
US6939425B1 (en) Method and device for the manufacture of corrugated material
KR102113528B1 (en) Anticorrosive Packing
JP3553474B2 (en) Bag making, filling and packaging
KR102575753B1 (en) Eco-friendly ice pack and manufacturing method of the same that
US11596228B1 (en) Furniture corner protector
US11981492B2 (en) Packaging material
US20210061535A1 (en) Packaging material
JPS6025363Y2 (en) sheet material
KR200183252Y1 (en) Two Layer Sheets of A.B.S & SAN. Two Layer Sheets of A.B.S & PMMA.
KR100396540B1 (en) Volatile Corrosion Inhibitor packing and method for manufacturing the same
EP1358071B1 (en) The process for the production of a packing material
EP1348817B1 (en) Insulated plate for covering or padding building structures

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20030210

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20060224

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

110E Request filed for conversion into a national patent application [according to art. 135 epc]

Effective date: 20090804

18D Application deemed to be withdrawn

Effective date: 20090415