WO1999032372A1 - Packaging materials and packaging trays - Google Patents

Packaging materials and packaging trays Download PDF

Info

Publication number
WO1999032372A1
WO1999032372A1 PCT/GB1998/003764 GB9803764W WO9932372A1 WO 1999032372 A1 WO1999032372 A1 WO 1999032372A1 GB 9803764 W GB9803764 W GB 9803764W WO 9932372 A1 WO9932372 A1 WO 9932372A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging
layer
perforations
packaging material
expanded polystyrene
Prior art date
Application number
PCT/GB1998/003764
Other languages
French (fr)
Inventor
Saul La Roche Salter
Original Assignee
Linpac Plastics Limited
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 Linpac Plastics Limited filed Critical Linpac Plastics Limited
Priority to AU15710/99A priority Critical patent/AU1571099A/en
Publication of WO1999032372A1 publication Critical patent/WO1999032372A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/34—Trays or like shallow containers
    • B65D1/36—Trays or like shallow containers with moulded compartments or partitions
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/261—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for draining or collecting liquids without absorbing them
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/34—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for fruit, e.g. apples, oranges or tomatoes

Definitions

  • This invention relates to packaging materials and more particularly to
  • separators and collation trays, for apples and grapes are formed of an
  • the present invention therefore seeks to provide an improved form of
  • packaging material and packaging trays formed therefrom particularly
  • a packaging material consisting of or including a layer of absorbent
  • plastics material having surface perforations or through perforations
  • Said plastics material will preferably be expanded polystyrene foam
  • Said packaging material may consist of a laminate comprising an upper
  • said upper layer may have
  • a packaging tray comprising or including a layer of absorbent plastics
  • said tray being substantially planar or having recesses therein
  • Figure 1 is a cross-section through a packaging material in accordance
  • Figure 2 shows in cross-section a modification of the packaging
  • FIGS 3 and 4 are cross-sections showing respectively modifications
  • Figure 5 is a cross-section through a packaging material in accordance
  • Figure 6 shows in cross-section a modification of the packaging
  • Figure 7 shows in cross-section a modification of the packaging
  • Figure 8 shows in cross-section a further modification of the packaging
  • Figure 11 is a cross-sectional elevation through a packaging tray.
  • material comprises a layer 2 of absorbent plastics material having a
  • the layer 2 is formed of
  • the surface perforations may be formed during the formation of the
  • Figure 2 shows a modification to the packaging material of Figure 1 in
  • Figures 3 and 4 show variations or modifications to the packaging materials of Figure 1 in that a surface layer or coating 8 is applied to
  • FIG. 4 the packaging material has through perforations 6A which
  • the surface layer extends from one surface of the laminate to the other.
  • coating 8 is a predominantly polystyrene based film having a
  • the packaging material consists of a
  • laminated structure comprising an upper layer 12 of open cell expanded
  • polystyrene foam having the same characteristics as the layer 2 in
  • Tha laminate formed by the layers 12 and 14 has an
  • Figure 6 shows the packaging material of Figure 5 but with perforations 16A extending throughout the thickness of the layer 12 so
  • FIGS 8 to 10 show modifications to the laminated packaging
  • the perforations 20 are through perforations such that they
  • the surface layers or coatings 8 and 18 are solid and are provided to
  • Packaging materials as described above may be formed into packaging trays - separation or collation trays - for the packaging and
  • trays formed of the material in accordance with the invention may be

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Food Science & Technology (AREA)
  • Packaging Frangible Articles (AREA)
  • Laminated Bodies (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Wrappers (AREA)

Abstract

A packaging material and a packaging tray (26) formed therefrom, said packaging material consisting of or including a layer of absorbent plastics material having surface perforations or through perforations therein. Said absorbent plastics material will be an expanded polystyrene foam of open or closed cell construction and having a core density of 30 to 150 kg/m2. The packaging material may be in the form of a laminate consisting of an upper layer (12) of open cell expanded polystyrene and a lower layer (14) of closed cell expanded polystyrene. The packaging material may be provided with a surface layer of film (18) which is predominantly polystyrene based and which has through perforations therein.

Description

PACKAGING MATERIALS AND PACK AGING TRAYS
This invention relates to packaging materials and more particularly to
such materials for use in the packaging of fruit, more specifically
apples and grapes.
Presently used packaging trays, which expression shall include
separators and collation trays, for apples and grapes are formed of an
expanded polystyrene material, such trays being planar or being
provided with recesses in which the fruit sits. Even with this material,
the fruit packaged - sandwiched - between these trays in an outer box
often becomes damaged due to inadequate drainage or inadequate
absorbency of the trays, resulting in the fruit lying in water on the tray
or in the recesses in the tray.
The present invention therefore seeks to provide an improved form of
packaging material and packaging trays formed therefrom, particularly
for use in the packaging and transportation of apples and grapes.
According to one aspect of the present invention there is provided a packaging material consisting of or including a layer of absorbent
plastics material having surface perforations or through perforations
therein.
Said plastics material will preferably be expanded polystyrene foam
and may be of open cell or closed cell construction having a core
density of 30 to 150kg/m2.
Said packaging material may consist of a laminate comprising an upper
layer of open cell expanded polystyrene foam and a lower layer of
closed cell expanded polystyrene foam, and said upper layer may have
on its upper surface a layer of film, which will be predominantly poly-
styrene based.
According to a second aspect of the present invention there is provided
a packaging tray comprising or including a layer of absorbent plastics
material, said tray being substantially planar or having recesses therein
and being provided with surface or through perforations. In order that the invention may be more readily understood,
embodiments thereof will now be described, by way of example,
reference being made to the accompanying diagrammatic drawings
wherein:
Figure 1 is a cross-section through a packaging material in accordance
with the invention;
Figure 2 shows in cross-section a modification of the packaging
material of Figure 1 ;
Figures 3 and 4 are cross-sections showing respectively modifications
to the packaging materials of Figures 1 and 2;
Figure 5 is a cross-section through a packaging material in accordance
with an alternative embodiment of the invention;
Figure 6 shows in cross-section a modification of the packaging
material of Figure 5;
Figure 7 shows in cross-section a modification of the packaging
material of Figure 6;
Figure 8 shows in cross-section a further modification of the packaging
material of Figure 5; Figures 9 and 10 are cross-sections showing respectively modifications
of the packaging materials of Figures 6 and 7; and
Figure 11 is a cross-sectional elevation through a packaging tray.
Referring to the drawings and firstly to Figure 1, the packaging
material comprises a layer 2 of absorbent plastics material having a
plurality of perforations 4 in its upper surface. The layer 2 is formed of
expanded polystyrene foam of at least partly open cell construction and
has a core density of 30 to 150kg/m2 and a thickness of 1.5 to 6.0mm.
The surface perforations may be formed during the formation of the
material or they may be applied in a post-forming operation.
Figure 2 shows a modification to the packaging material of Figure 1 in
that the layer 2 - of the same construction as described with reference
to Figure 1 - has through perforations 6 which extend from one surface
to the other of the material.
Figures 3 and 4 show variations or modifications to the packaging materials of Figure 1 in that a surface layer or coating 8 is applied to
the surface of the layer 2 so as to form a laminate. In the case of the
packaging material of Figure 3, the surface layer or coating 8 has
through perforations 10 which communicate with the layer 2, whilst in
Figure 4 the packaging material has through perforations 6A which
extend from one surface of the laminate to the other. The surface layer
or coating 8 is a predominantly polystyrene based film having a
thickness of 15 to 150 microns.
Referring now to Figure 5, the packaging material consists of a
laminated structure comprising an upper layer 12 of open cell expanded
polystyrene foam having the same characteristics as the layer 2 in
Figures 1 to 4, and a lower layer 14 of closed cell expanded poly¬
styrene foam. Tha laminate formed by the layers 12 and 14 has an
overall thickness of 1.5 to 6.0mm, and the upper layer 12 is provided
with surface perforations 16.
Figure 6 shows the packaging material of Figure 5 but with perforations 16A extending throughout the thickness of the layer 12 so
as to communicate with the layer 14, and Figure 7 shows perforations
16B extending through both of the layers 12 and 14.
Figures 8 to 10 show modifications to the laminated packaging
materials of Figures 5 to 7 in that a surface layer or coating 18 - having
the same characteristics as the surface layer or coating 8 previously
referred to - has been applied to the outer surface of the layer 12. In
Figure 8, the perforations 20 are through perforations such that they
communicate with the layer 12, whilst in Figure 9 the perforations 22
extend through the layer 12 to communicate with the layer 14. In
Figure 10, the perforations extend through the whole laminated
structure.
The surface layers or coatings 8 and 18 are solid and are provided to
add a degree of rigidity to the packaging material.
Packaging materials as described above may be formed into packaging trays - separation or collation trays - for the packaging and
transportation of fruit, particularly apples and grapes. The packaging
trays formed of the material in accordance with the invention may be
substantially planar, or they may be provided or formed with recesses
to accommodate single articles of fruit such as apples or discrete
bunches of grapes.
The presence of the perforations, either surface perforations or through
perforations, enables liquid to be absorbed into the material and/or to
pass through the material, such that the fruit is not lying in the liquid
and hence preventing the fruit from becoming water-logged and
damaged.

Claims

CLAIMS:
1. A packaging material consisting of or including a layer of
absorbent plastics material having surface perforations or through
perforations therein.
2. A packaging material according to Claim 1 , wherein said plastics
material is expanded polystyrene foam.
3. A packaging material according to Claim 2, wherein said
expanded polystyrene foam has a core density of 30 to 150kg/m .
4. A packaging material according to Claim 2 or Claim 3, wherein
said expanded polystyrene foam is of open cell or closed cell
construction.
5. A packaging material according to any of Claims 1 to 4, wherein
said packaging material has on its upper surface a layer of film, said film being predominantly polystyrene based and having through
perforations therein.
6. A packaging material according to any of Claims 1 to 4, wherein
said packaging material consists of a laminate comprising an upper
layer of open cell expanded polystyrene foam and a lower layer of
closed cell expanded polystyrene foam.
7. A packaging material according to Claim 6, wherein said upper
layer has on its upper surface a layer of film which is predominantly
polystyrene based and which has through perforations therein.
8. A packaging tray comprising or including a layer of absorbent
plastics material, said tray being substantially planar or having recesses
therein and being provided with surface or through perforations.
9. A packaging tray composed of any of the packaging materials
according to Claims 1 to 7.
PCT/GB1998/003764 1997-12-18 1998-12-15 Packaging materials and packaging trays WO1999032372A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15710/99A AU1571099A (en) 1997-12-18 1998-12-15 Packaging materials and packaging trays

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9726600.1A GB9726600D0 (en) 1997-12-18 1997-12-18 Packaging materials and packaging trays
GB9726600.1 1997-12-18

Publications (1)

Publication Number Publication Date
WO1999032372A1 true WO1999032372A1 (en) 1999-07-01

Family

ID=10823714

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/003764 WO1999032372A1 (en) 1997-12-18 1998-12-15 Packaging materials and packaging trays

Country Status (5)

Country Link
AR (1) AR008976A1 (en)
AU (1) AU1571099A (en)
GB (1) GB9726600D0 (en)
WO (1) WO1999032372A1 (en)
ZA (1) ZA9811419B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000078635A1 (en) * 1999-06-17 2000-12-28 Cryovac, Inc. Foam packaging tray and packaging method using same
US6380524B1 (en) * 1999-08-09 2002-04-30 Karl Keller Microwavable food package having valve and method of use
FR2827740A1 (en) * 2001-07-24 2003-01-31 Crusta D Oc PROCESS FOR COOKING CRUSTACEANS AND / OR SHELLS AND PACKAGING USED IN THIS PROCESS
US6607764B1 (en) 1997-12-18 2003-08-19 Karl Keller Ventable, microwave-safe food package
WO2009141213A1 (en) * 2008-05-22 2009-11-26 Cryovac, Inc. Gas barrier and liquid absorbent container for the packaging of food products
EP2138409A1 (en) 2008-06-27 2009-12-30 I.L.P.A. S.r.l. Container for packing and transporting fruit and vegetable products
EP1419977B1 (en) 2002-11-15 2016-07-20 LINPAC Packaging Limited Food package, in particular a tray, with electronic tag

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046956A1 (en) * 1980-08-30 1982-03-10 Hoechst Aktiengesellschaft Tray-like packaging container with fluid-absorbing bottom and method for producing it
US4702377A (en) * 1984-11-20 1987-10-27 Lin Tec Verpackungstechnik Gmbh Tray for receiving foodstuffs and a process and apparatus for producing it
EP0743262A1 (en) * 1995-05-19 1996-11-20 SIRAP-GEMA S.p.A. Tray of plastics material for food substances which tend to release liquids
EP0754632A1 (en) * 1995-07-17 1997-01-22 SIRAP-GEMA S.p.A. A sheet of expanded plastics material with absorbent properties towards aqueous liquids
US5639145A (en) * 1995-09-11 1997-06-17 Alderman; Willis H. Portable cushion
EP0849309A1 (en) * 1996-12-18 1998-06-24 SIRAP-GEMA S.p.A. Method of producing an open-cell expanded polystyrene sheet and tray thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046956A1 (en) * 1980-08-30 1982-03-10 Hoechst Aktiengesellschaft Tray-like packaging container with fluid-absorbing bottom and method for producing it
US4702377A (en) * 1984-11-20 1987-10-27 Lin Tec Verpackungstechnik Gmbh Tray for receiving foodstuffs and a process and apparatus for producing it
EP0743262A1 (en) * 1995-05-19 1996-11-20 SIRAP-GEMA S.p.A. Tray of plastics material for food substances which tend to release liquids
EP0754632A1 (en) * 1995-07-17 1997-01-22 SIRAP-GEMA S.p.A. A sheet of expanded plastics material with absorbent properties towards aqueous liquids
US5639145A (en) * 1995-09-11 1997-06-17 Alderman; Willis H. Portable cushion
EP0849309A1 (en) * 1996-12-18 1998-06-24 SIRAP-GEMA S.p.A. Method of producing an open-cell expanded polystyrene sheet and tray thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6607764B1 (en) 1997-12-18 2003-08-19 Karl Keller Ventable, microwave-safe food package
WO2000078635A1 (en) * 1999-06-17 2000-12-28 Cryovac, Inc. Foam packaging tray and packaging method using same
US6380524B1 (en) * 1999-08-09 2002-04-30 Karl Keller Microwavable food package having valve and method of use
FR2827740A1 (en) * 2001-07-24 2003-01-31 Crusta D Oc PROCESS FOR COOKING CRUSTACEANS AND / OR SHELLS AND PACKAGING USED IN THIS PROCESS
EP1419977B1 (en) 2002-11-15 2016-07-20 LINPAC Packaging Limited Food package, in particular a tray, with electronic tag
WO2009141213A1 (en) * 2008-05-22 2009-11-26 Cryovac, Inc. Gas barrier and liquid absorbent container for the packaging of food products
EP2138409A1 (en) 2008-06-27 2009-12-30 I.L.P.A. S.r.l. Container for packing and transporting fruit and vegetable products

Also Published As

Publication number Publication date
ZA9811419B (en) 1999-03-16
AU1571099A (en) 1999-07-12
AR008976A1 (en) 2000-03-08
GB9726600D0 (en) 1998-02-18

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