GB2460215A - Packaging materials - Google Patents

Packaging materials Download PDF

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Publication number
GB2460215A
GB2460215A GB0809369A GB0809369A GB2460215A GB 2460215 A GB2460215 A GB 2460215A GB 0809369 A GB0809369 A GB 0809369A GB 0809369 A GB0809369 A GB 0809369A GB 2460215 A GB2460215 A GB 2460215A
Authority
GB
United Kingdom
Prior art keywords
packaging material
latex
derivative
layer
natural
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Withdrawn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
GB0809369A
Other versions
GB0809369D0 (en
Inventor
Ian Bates
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.)
Portabrands Ltd
Original Assignee
Portabrands 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 Portabrands Ltd filed Critical Portabrands Ltd
Priority to GB0809369A priority Critical patent/GB2460215A/en
Publication of GB0809369D0 publication Critical patent/GB0809369D0/en
Priority to GB1000947A priority patent/GB2465102A/en
Priority to PCT/GB2008/050747 priority patent/WO2009027741A1/en
Publication of GB2460215A publication Critical patent/GB2460215A/en
Withdrawn legal-status Critical Current

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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • 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
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • 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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/10—Natural fibres, e.g. wool, cotton
    • 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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/18—Cellulose, modified cellulose or cellulose derivatives, e.g. viscose
    • 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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/20—Starch
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Abstract

A compostable packaging material laminate comprises a layer comprising a natural-fibre cloth base 11 and a layer 12 comprising latex or a latex derivative. The natural-fibre cloth may be cellulose-based such as cotton or bast fibres e.g. jute, kenaf, hemp, flax, ramie, sisal or abaca. The latex or latex derivative may be natural rubber, non-vulcanized or vulcanized rubber or a synthetic rubber such as styrene-butadiene rubber, butadiene rubber, chloroprene rubber or ethylene-propylene-diene rubber. A layer comprising starch or cellulose derivative such as lactic acid derivative, polylactic acid or biopolymer derived from corn or maize may be present. Compostable adhesives may be used between layers. The packaging material may be metallised e.g. with aluminium and may comprise a printed layer. The packaging material may be in the form of a closeable, sealable or open container and may be formed by extruding and/or laminating a latex or a latex derivative to the cloth.

Description

PACKAGING MATERIALS
The present invention relates to packaging materials, in particular to compostable, biodegradable packaging materials.
According to a first aspect of the present invention, there is provided a packaging material comprising a compostable laminate comprising: i) a layer comprising a natural-fibre cloth; and ii) a layer comprising latex or a latex derivative.
According to a second aspect of the present invention, there is provided a package in the form of a closeable, sealable or open container, or bag comprising a packaging material comprising a compostable laminate comprising: i) a layer comprising a natural-fibre cloth; and ii) a layer comprising latex or a latex derivative.
According to a third aspect of the present invention, there is provided a process for manufacturing a packaging material comprising a compostable laminate comprising: i) a layer comprising a natural-fibre cloth; and ii) a layer comprising latex or a latex derivative; wherein the process comprises extruding and/or laminating latex or a latex derivative onto a natural-fibre cloth.
Suitably, the natural-fibre cloth is cellulose-based. Preferably, the natural-fibre cloth is cotton. Alternatively, the natural-fibre cloth is formed from bast fibres. Preferably, the bast fibres are obtained from at least one of the group comprising jute, kenaf, hemp, flax, ramie, sisal or abacá.
Suitably, the latex or latex derivative is a natural latex rubber, in particular a non-vulcanized rubber. Preferably, the latex derivative is natural rubber. Alternatively, the latex or latex derivative is vulcanized.
Suitably, the latex or latex derivative comprises a filler oil.
Alternatively, the latex derivative is a synthetic rubber formed by polymerisation of a monomer or a mixture of monomers. Suitably, the synthetic rubber is styrene-butadiene rubber, butadiene rubber, chloroprene rubber or ethylene-propylene-diene rubber.
Optionally, the laminate further comprises a layer comprising a starch or cellulose derivative. Preferably, the starch or cellulose derivative is a lactic acid derivative, such as polylactic acid, or a biopolymer derived from corn or maize, for example biopolymers as sold under the trade mark Mater-Bi� (Novamont) and Biograde� (FKuR Kunststoff GmbH). Suitably, the starch or cellulose derivative is at least partly derived from corn or maize.
Optionally, a surface of the packaging material is metallised. Preferably, the metallised surface is formed from aluminium. Suitably, the surface of the packaging material is metallised by vacuum deposition.
Optionally, the packaging material further comprises a printed film. Preferably, the printed film is formed from a compostable polymer. Preferably, the printed film and packaging material form a laminate. Alternatively, the starch or cellulose derivative comprises a printed layer.
Optionally, a compostable laminating adhesive is interposed between the natural-fibre cloth layer and the layer comprising latex or a latex derivative.
The above and other aspects of the present invention will now be described in further detail, by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a schematic sectional view of a packaging material according to the first aspect of the invention.
Referring to Figure 1 there is shown a packaging material 10 formed from a natural-fibre cloth base 11 and latex or a latex derivative 12. Packaging material 10 may be formed by any suitable technique, such as by extrusion or lamination. Lamination is the preferred process. Conventional lamination techniques include applying the latex or latex derivative 12 as a film to the natural-fibre cloth base 11 using heat and/or pressure to bond the components. Optionally, an adhesive may be used to bond the cloth base 11 and latex or latex derivative, and this will also preferably be
compostable.
The latex or latex derivative may include a filler oil.
Additionally, the latex derivative 12, in the form of a film, may be metallised by vacuum deposition. A suitable metal for forming the metallised surface is aluminium.
In a container made from the packaging material according to the present invention, the metallised surface will generally cover the interior surfaces of the container to act as a barrier between an item located within the container and the starch derivative 12.
In preferred embodiments, the starch derivative is a lactic acid derivative, such as polylactic acid, or a biopolymer derived from corn or maize. Suitable biopolymers include those sold under the trade mark Mater-Bi� (Novamont) and Biograde� (FKuR Kunststoff GmbH).
The packaging material may also be covered with a printed film (not shown), which is preferably formed from a compostable polymer. In preferred embodiments, the printed film and packaging material form a laminate. In an alternative embodiment, the film formed from the latex derivative of the laminate can be directly printed upon.
The laminated packaging material produced in accordance with the present invention provides a versatile material which has excellent barrier properties, and which can be used in a wide variety of applications. In particular, these materials are considered to be excellent alternatives to oil-based packaging materials commonly used for food containment and preservation. Due to their excellent barrier properties, these laminate materials are suitable for use in containing liquids, and particularly suitable for forming bags such as reusable or disposable carrier bags which are biodegradable.

Claims (29)

  1. CLAIMS: 1. A packaging material comprising a compostable laminate comprising: i) a layer comprising a natural-fibre cloth; and S ii) a layer comprising latex or a latex derivative.
  2. 2. A packaging material as claimed in claim 1, wherein the natural-fibre cloth is cellulose-based.
  3. 3. A packaging material as claimed in claim 1 or claim 2, wherein the natural-fibre cloth is cotton.
  4. 4. A packaging material as claimed in claim 1 or claim 2, wherein the natural-fibre cloth is formed from bast fibres.
  5. 5. A packaging material as claimed in claim 4, wherein the bast fibres are obtained from at least one of the group comprising jute, kenaf, hemp, flax, ramie, sisal or abacá.
  6. 6. A packaging material as claimed in any one of claims 1 to 5, wherein the latex or latex derivative is a natural rubber.
  7. 7. A packaging material as claimed in any one of claims 1 to 5, wherein the latex or latex derivative is a non-vulcanized rubber.
  8. 8. A packaging material as claimed in any one of claims 1 to 5, wherein the latex or latex derivative is vulcanized.
  9. 9. A packaging material as claimed in any one of claims 1 to 5, wherein the latex derivative is a synthetic rubber formed by polymerisation of a monomer or a mixture of monomers.
  10. 10. A packaging material as claimed in claim 9, wherein the synthetic rubber is styrene-butadiene rubber, butadiene rubber, chloroprene rubber or ethylene-propylene-diene rubber.
  11. 11. A packaging material as claimed in any one of claims 1 to 10, wherein the latex or latex derivative comprises a filler oil.
  12. 12. A packaging material as claimed in any one of claims 1 to 11, further comprising a layer comprising a starch or cellulose derivative.
  13. 13. A packaging material as claimed in claim 12, wherein the starch or cellulose derivative is a lactic acid derivative.
  14. 14. A packaging material as claimed in claim 13, wherein the starch or cellulose derivative is a polylactic acid or a biopolymer derived from corn or maize.
  15. 15. A packaging material as claimed in claim 14, wherein the biopolymer is Mater-Bi� and Biograde�.
  16. 16. A packaging material as claimed in any one of claims 12 to 15, wherein the starch or cellulose derivative is at least partly derived from corn or maize.
  17. 17. A packaging material as claimed in claim 12, wherein the starch or cellulose derivative comprises polylactic acid 70%; polyethylene 20%; mineral oil 10%.
  18. 18. A packaging material as claimed in any one of claims 1 to 17, wherein a surface of the packaging material is metallised.
  19. 19. A packaging material as claimed in claim 18, wherein the metallised surface is formed from aluminium.
  20. 20. A packaging material as claimed in claim 19, wherein the surface of the packaging material is metallised by vacuum deposition.
  21. 21. A packaging material as claimed in any one of claims 1 to 20, wherein the packaging material further comprises a printed film.
  22. 22. A packaging material as claimed in claim 21, wherein the printed film is formed from a compostable polymer.
  23. 23. A packaging material as claimed in claim 21 or claim 22, wherein the printed film and packaging material form a laminate.
  24. 24. A packaging material as claimed in any one of claims 1 to 11, wherein the layer comprising latex or a latex derivative comprises a printed layer
  25. 25. A packaging material as claimed in any one of claims 12 to 24, wherein the layer comprising a starch or cellulose derivative comprises a printed layer.
  26. 26. A packaging material as claimed in any one of claims 1 to 25, wherein a compostable laminating adhesive is interposed between the natural-fibre cloth layer and the layer comprising a latex or a latex derivative.
  27. 27. A packaging material as claimed in claim 26, wherein a compostable laminating adhesive is interposed between the layer comprising a starch or cellulose derivative, and the natural-fibre cloth layer and/or the layer comprising a latex or a latex derivative.
  28. 28. A package in the form of a closeable, sealable or open container, or bag comprising a packaging material as claimed in any one of claims 1 to 27.
  29. 29. A process for making a packaging material as claimed in any one of claims 1 to 28, the process comprising extruding and/or laminating a latex or a latex derivative to a natural-fibre cloth.
GB0809369A 2007-08-28 2008-05-23 Packaging materials Withdrawn GB2460215A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0809369A GB2460215A (en) 2008-05-23 2008-05-23 Packaging materials
GB1000947A GB2465102A (en) 2007-08-28 2008-08-28 Packaging material
PCT/GB2008/050747 WO2009027741A1 (en) 2007-08-28 2008-08-28 Packaging material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0809369A GB2460215A (en) 2008-05-23 2008-05-23 Packaging materials

Publications (2)

Publication Number Publication Date
GB0809369D0 GB0809369D0 (en) 2008-07-02
GB2460215A true GB2460215A (en) 2009-11-25

Family

ID=39615957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0809369A Withdrawn GB2460215A (en) 2007-08-28 2008-05-23 Packaging materials

Country Status (1)

Country Link
GB (1) GB2460215A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011155814A1 (en) 2010-06-11 2011-12-15 Soluciones Bioagradables De México.S.A.De C.V Method for preparing a thermoplastic polymer mixture comprising fibres, agave residues and oxo-degradable additives for preparing biodegradable plastic articles
WO2012004193A1 (en) 2010-07-07 2012-01-12 Societe Holding Depestele Flexible preform for producing a component based on natural fibres
IT201900025171A1 (en) * 2019-12-20 2021-06-20 Basiliotti S R L BAG

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703419A1 (en) * 1997-01-30 1998-08-06 Young Fung Co Adhesive thermoplastic resin composition useful for production of handbags and purses

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703419A1 (en) * 1997-01-30 1998-08-06 Young Fung Co Adhesive thermoplastic resin composition useful for production of handbags and purses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011155814A1 (en) 2010-06-11 2011-12-15 Soluciones Bioagradables De México.S.A.De C.V Method for preparing a thermoplastic polymer mixture comprising fibres, agave residues and oxo-degradable additives for preparing biodegradable plastic articles
WO2012004193A1 (en) 2010-07-07 2012-01-12 Societe Holding Depestele Flexible preform for producing a component based on natural fibres
IT201900025171A1 (en) * 2019-12-20 2021-06-20 Basiliotti S R L BAG
WO2021124243A1 (en) * 2019-12-20 2021-06-24 Basiliotti S.R.L. Bag

Also Published As

Publication number Publication date
GB0809369D0 (en) 2008-07-02

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