GB2467141A - Coverings for comestibles - Google Patents

Coverings for comestibles Download PDF

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Publication number
GB2467141A
GB2467141A GB0901083A GB0901083A GB2467141A GB 2467141 A GB2467141 A GB 2467141A GB 0901083 A GB0901083 A GB 0901083A GB 0901083 A GB0901083 A GB 0901083A GB 2467141 A GB2467141 A GB 2467141A
Authority
GB
United Kingdom
Prior art keywords
covering
layer
metallic foil
cling
film
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Withdrawn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
GB0901083A
Other versions
GB0901083D0 (en
Inventor
Yuri Rapoport
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 GB0901083A priority Critical patent/GB2467141A/en
Publication of GB0901083D0 publication Critical patent/GB0901083D0/en
Publication of GB2467141A publication Critical patent/GB2467141A/en
Withdrawn legal-status Critical Current

Links

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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3461—Flexible containers, e.g. bags, pouches, envelopes
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/16—Wrappers or flexible covers with provision for excluding or admitting light
    • B65D65/18—Wrappers or flexible covers with provision for excluding or admitting light with some areas transparent and others opaque
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • 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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Cookers (AREA)

Abstract

A covering for comestibles is proposed in which the covering is in the form of a laminated structure comprises a layer of cling-film material and a layer of a metallic foil material, with the metallic foil layer having a plurality of apertures therein. This enables the covering to be seen through. The covering combines the advantages of cling film i.e. the ability to stick to container and/or to itself and to provide an air seal and of metallic foil i.e. the ability to hold its shape when handled. If a second layer of cling-film material is added to sandwich the metallic foil layer, the covering can be used in microwave ovens.

Description

Improvements in coverin_gs for comestibles This invention relates to coverings for comestibles.
One of the products that is commonly used for covering comestibles is a material known as "cling-film". As anyone who has used it will know, however, cling-film is awkward to use. Another commonly used product for covering comestibles is a metallic foil material known as "tin foil" or, more likely these days, "aluminium foil". This is easier to use than cling film. However, it does not have the same sealing qualities.
The present invention proposes a covering for comestibles, wherein the covering is in the form of a laminated structure comprising a layer of cling-film material and a layer of a metallic foil material, with the metallic foil layer having a plurality of apertures therein to enable the covering to be seen through.
The covering proposed herein combines the advantages of both its consituent materials: in the case of cling-film, this is its ability to stick to a container and/or to itself and to provide an air seal, and in the case of metallic foil, this is its greater propensity to hold its shape when being handled. For those materials to which cling-film tends not to adhere so well, such as wooden or some plastics containers, the covering proposed herein provides an effective and useful alternative. The additional provision of apertures in the metallic foil layer mean that comestibles underneath the covering can be seen without the covering having to be removed or disturbed. The apertures also enable the covering to be used in microwave ovens, as will be described in more detail below.
The apertures in the metallic foil layer may conveniently be formed as cut-outs. These may be of any shape, such as regular geometric shapes, e.g. round, square, diamond-shaped, hexagonal etc. Alternatively, or additionally, the cut-outs may be of other, irregular shapes, such as outlines of images of food products or possibly even of company logos. The cut-outs may be arranged randomly over the foil layer or they may be arranged in a regular pattern. The foil layer may have printing, embossing and/or other embellishments on its surface.
In an alternative form, the covering may comprise a second layer of cling-film material in addition to the first, with the two cling-film layers sanidwiching the metallic foil layer between them. This has the advantage of enabling the covering to be used in microwave ovens.
Metallic foil is not normally suitable for use in microwave ovens, because metal forms a barrier to microwave radiation and will therefore tend to act as a shield and hence hamper the heating process. With this form of covering, however, the provision of apertures in the metallic foil layer enables this problem to be overcome. The size of the apertures is chosen to be compatible with the wavelength of the radiation that is normally to be found in microwave ovens, in order to allow the radiation to pass through the covering, at least in part.
The presence of metallic foil in microwave ovens can be dangerous, because the radiation produced by these ovens has the effect of inducing currents in metallic objects. In thin metallic foils in air, such induced currents can cause electric arcing to occur, visible as sparks, and can lead to the foil exploding. This problem is overcome in this form of covering, because the sandwiching of the metallic foil layer between the two cling-film layers effectively seals it off from the air. It will be appreciated that the same effect might be achieved instead by the use of a single cling-film layer arranged on one side of the metallic foil layer, and a suitable surface coating on the other side of the metallic foil layer.
This form of covering is particularly useful in a kitchen environment, because it can be used universally. It can be used to cover food for storage in a fridge, for example, as well as to cover food for cooking in a microwave oven. In particular, it enables food to be taken out of a fridge and placed directly into a microwave oven for cooking, without any need for removing or replacing the covering. An additional advantage of the covering is its heat retaining quality, due to the metallic foil layer, which enables heated food to hold its temperature for longer periods.
These forms of covering may be provided in a continuous length of material on a roll, from which individual pieces can be torn off for use.
The material may include suitable perforations to assist this process.
The various layers of the covering may be bonded together to prevent de-lamination.
The form of covering with the metallic layer sealed off from the air is also suitable for use in the packaging of food products. The covering could be used as the lid portion of a ready-to-cook packaged meal, for example, as it allows the package to be placed straight into a microwave oven.

Claims (8)

  1. Claims 1. A covering for comestibles, wherein the covering is in the form of a laminated structure comprising a layer of cling-film material and a layer of a metallic foil material, with the metallic foil layer having a plurality of apertures therein to enable the covering to be seen through.
  2. 2. A covering as claimed in claim 1 wherein the metallic foil layer is arranged to be sealed off from the air, in use, making the covering suitable for use in a microwave oven.
  3. 3. A covering as claimed in claim 2 and comprising a second layer of cling-film material, wherein the metallic foil layer is sandwiched between the two cling-film layers.
  4. 4. A covering as claimed in claim 2 and comprising a surface coating on the metallic foil layer arranged to be on the opposite side thereof to the cling-film layer.
  5. 5. A covering as claimed any preceding claim wherein the layers are bonded together.
  6. 6. A covering as claimed in any preceding claim wherein the covering is provided in the form of an elongate length of material on a roll.
  7. 7. A covering substantially as herein described.
  8. 8. Packaging for comestibles comprising a covering as claimed in any preceding claim.
GB0901083A 2009-01-22 2009-01-22 Coverings for comestibles Withdrawn GB2467141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0901083A GB2467141A (en) 2009-01-22 2009-01-22 Coverings for comestibles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0901083A GB2467141A (en) 2009-01-22 2009-01-22 Coverings for comestibles

Publications (2)

Publication Number Publication Date
GB0901083D0 GB0901083D0 (en) 2009-03-11
GB2467141A true GB2467141A (en) 2010-07-28

Family

ID=40468956

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0901083A Withdrawn GB2467141A (en) 2009-01-22 2009-01-22 Coverings for comestibles

Country Status (1)

Country Link
GB (1) GB2467141A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2715089A (en) * 1953-04-27 1955-08-09 Elliott W Michener Flexible covering sheet and method of making the same
GB1018562A (en) * 1963-03-11 1966-01-26 Martin John Marcus Wrapping material
EP0546792A1 (en) * 1991-12-11 1993-06-16 Avner Geller Laminate useful as packaging material and its manufacture
US5308690A (en) * 1992-09-08 1994-05-03 Butcher Jr Duane S Wrapping film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2715089A (en) * 1953-04-27 1955-08-09 Elliott W Michener Flexible covering sheet and method of making the same
GB1018562A (en) * 1963-03-11 1966-01-26 Martin John Marcus Wrapping material
EP0546792A1 (en) * 1991-12-11 1993-06-16 Avner Geller Laminate useful as packaging material and its manufacture
US5308690A (en) * 1992-09-08 1994-05-03 Butcher Jr Duane S Wrapping film

Also Published As

Publication number Publication date
GB0901083D0 (en) 2009-03-11

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Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)