IMPROVEMENTS TO PACKAGING MATERIAL

Abstract

The invention relates to the packaging of one or more articles in a packaging sheet material which is moveable from a first condition to a second, expanded, condition to improve the packaging effect of the sheet material. In accordance with the invention the sheet material includes a first portion with apertures which can be moved to an open position to create the second, expanded, condition and at least one, but typically a plurality of spaced apart, second portions which have no apertures, or a different shape and/or pattern of apertures than the apertures of the first portion, so as to form a surface of the said second portion more suitable for the application of a label and/or indications thereon when the sheet material is in the second expanded condition.

Claims

1. A packaging material formed from at least one layer of sheet material, said sheet material having a first portion with a plurality of apertures formed in a predefined and repeating pattern on said sheet material such that, when a movement force is applied in at least one direction to the said sheet material, an opening effect is applied to at least some of said apertures and moves the sheet material from a first condition to a second, expanded, condition, wherein the sheet material includes at least one second portion which is provided with no apertures, or a different shape and/or pattern of apertures than the apertures of the first portion, so as to form a surface of the said second portion suitable for the application of a label and/or indications thereon when the sheet material is in the second expanded condition.

2. A material according to claim 1 wherein when the movement force is applied the area and/or volume of the packaging material is increased by the opening of the apertures.

3. A material according to claim 1 wherein said surface of the at least one second portion receives the label with a layer of adhesive thereon to retain the label on said surface and/or indications in the form of ink which is printed or handwritten onto said surface.

4. A material according to claim 1 wherein the said surface of the at least one second portion include an adhesive material to allow a further sheet material to be applied thereto or another part of the same sheet material to be retained thereon.

5. A material according to claim 1 wherein when the said second portion of the sheet material has no apertures formed thereon the same has a surface area with edges defined by the adjacent apertures of the first portion of the sheet material,

6. A material according to claim 1 wherein when the said second portion includes apertures, the spacing between adjacent apertures is greater than the spacing between the adjacent apertures formed in the first portion.

7. A material according to claim 1 wherein a plurality of said second portions are located at predetermined spaced apart locations on the said sheet material.

8. A material according to claim 7 wherein the said location and spacing of the said second portions are determined with respect to the particular use of the packaging material such that when a section of the sheet material of a sufficient size to be used to package a known article or articles is removed from the packaging material supply at least one of the said second portions is located on the separated section,

9. A material according to claim 8 wherein the location and spacing of the second portions is predefined such that a plurality of said second portions are present on the said separated section.

10. A material according to claim 1 wherein when the movement force is applied the said first portion expands to a greater extent than the at least one second portion.

11. A material according to claim 1 wherein the said packaging material is provided as a roll to be dispensed in a first direction from a dispensing apparatus in which the roll is retained and the length of the sheet material is parallel to the direction of the application of the movement force to the leading edge of the sheet material so as to dispense a section of the sheet material which is cut from the supply and used to package one or more articles.

12. A material according to claim 1 wherein the sheet material is formed of one layer.

13. A material according to claim 1 wherein the sheet material is formed of a plurality of layers.

14. A material according to claim 13 wherein the said first and second portions of the respective layers are located in register so as to be provided at the same respective locations,

15. A material according to claim 13 wherein at least one of said layers is provided with the said first and second portions and the remainder of the layers are provided with a pattern of slits of a first portion and no second portion is provided and the at least one layer with the second portions formed thereon is located to form an external surface of the sheet material.

16. A material according to claim 13 wherein a first of said layers is provided with first and second portions and located to form a first external surface of the sheet material and a second of said layers is provided with first and second portions and located to form the opposing external surface of the sheet material.

17. A material according to claim 16 wherein said external surfaces of the sheet material are provided so that the second portions are in register.

18. A material according to claim 13 wherein each of the layers has its own aperture pattern to create interlocking layers of expansion sheet packaging materials of at least the first portions when the sheet material is moved to the second, expanded, condition.

19. A material according to claim 1 wherein when the sheet material is expanded to the second condition the apertures of the first portion expand to create a three dimensional packaging configuration of a series of cells of hexagons

20. A material according to claim 1 wherein the apertures are provided in the form of slits and which, when the sheet material is moved to the second condition, open.

21. A material according to claim 1 wherein the material includes paper or card fibres.

22. A packaging sheet material, said sheet material moveable from a first condition to a second, extended condition by the exertion of a movement force thereon, wherein said sheet material includes a first portion including apertures formed therein in a predefined pattern, and at least one second portion, and when the said movement force is applied to the sheet material the first portion expands to a greater extent than the second portion.

23. A material according to claim 22 wherein the expansion of the first portion includes the said first portion moving so as to be substantially non planer with respect to the second portion.

24. A method of packaging an article in a packaging sheet material, said method comprising the steps of forming a series of apertures in a repeating pattern on a first portion of at least one layer of the sheet material, providing the sheet material in a roll to be dispensed from a dispensing apparatus, pulling a leading edge of the said roll from the dispensing apparatus so as to open the apertures of the said first portion and expand the dimensions of the sheet material, removing a section of the sheet material from the roll and wrapping one or more articles in said sheet material and wherein providing a plurality of second portions in the sheet material with no or a lower density of apertures than in the first portion and providing said second portions in a predefined pattern on said sheet material such that when the section of sheet material of the required size to package said one or more articles is removed, at least one of said second portions is located on said section.

25. A method according to claim 24 wherein a label and/or indications are applied to a surface of the said at least one second portion located on said section.

26. A method according to claim 25 wherein the said label and/or indications include an address to which the packaged article is to be posted or delivered.

Description

[0033] Specific embodiments of the invention are now described with reference to the accompanying drawings wherein:

[0034] FIGS. 1a-d illustrate conventional packaging material to which the application relates in a first, relaxed, condition and a second, expanded condition respectively;

[0035] FIGS. 2a and b illustrate packaging material in accordance with the invention in the first, relaxed, and second, expanded, conditions respectively;

[0036] FIG. 3 illustrates the packaging material of FIGS. 2a and b with a label applied thereto;

[0037] FIG. 4 illustrates an article packaged using the packaging material in accordance with the invention of FIGS. 2a-3; and

[0038] FIGS. 5a and b illustrate cross sectional views of packaging material in accordance with further embodiments of the invention.

[0039] Referring firstly to FIGS. 1a-d, there is illustrated a packaging material 2 in accordance with a conventional form in which there is provided a sheet material formed of one or more layers and with opposing external surfaces 4 and 6. The sheet material has formed therein, a series of apertures in the form of slits 8 in a predefined pattern, with each of the slits provided in rows 9, each row with a longitudinal axes which are parallel and parallel to a general axis 10 which is perpendicular to the direction of movement 16 of the sheet material as will be explained. Furthermore, the slits 8 in a first row are offset along its longitudinal axis with respect to the location of the slits on the longitudinal axes of adjacent rows as shown in FIG. 1d which shows in detail a part of the sheet material 2 as shown in FIG. 1a. In FIGS. 1a and 1d it is shown that the sheet material may initially be provided as a packaging material supply in the first, relaxed, condition in which the slits 8 are closed and provided on a roll 12 and for use with the dispensing apparatus 14.

[0040] To use the packaging material a movement force is applied to the leading edge 18 of the sheet material in the direction of arrow 16 to draw the leading edge 18 from the roll and a retention force is created by the dispensing apparatus on the sheet material 2 which is sufficient to act to open the slits 8 due to the flexibility of the material, to open the same to form a series of substantially diamond or hexagon shaped apertures 8′ as shown towards the leading edge 18 in FIG. 1a and in FIG. 1b, which shows the detailed part 20 of the packaging material in the expanded, second condition. Thus, in the second condition the area and volume of the sheet material 2 is increased so as to provide a three dimensional packaging material and provide a greater cushioning effect and coverage area for the packaging material when used to surround and package an article. It will be seen that the whole of the section of the sheet material which has been removed from the dispensing apparatus is expanded to the second condition of FIG. 1b, and FIG. 1c illustrates that the packaging material extends from a substantially thin section to have an increased depth so that the volume of the packaging material also increases. Typically, an appropriate sized section of the sheet material for the packaging of the one or more articles is cut-off from the roll 12 to provide a sufficient amount of the packaging material to enclose the article which is to be packaged and provide sufficient cushioning effect on the article so as to protect the article during the subsequent transportation of the same.

[0041] Thus, it may be the case that the sections of the sheet material which are successively separated from the roll for use, are separated in a relatively random manner and in an uncontrolled manner so that there can be no certainty as to the accuracy of the dimensions of the section of the packaging material which is used.

[0042] Conventionally, if an attempt was made to apply a label to this conventional sheet material, then if applied when the packaging material is in the first, relaxed condition, when the packaging material is expanded to the second condition, the label is susceptible to being torn or simply being pushed off the sheet material or, if the label is applied when the sheet material has been moved to the second, expanded, condition of FIGS. 1b-c, the label is applied to a non-uniform outer surface of the expanded packaging material which is difficult to achieve and typically there is insufficient retention strength of adhesion between the label and the said surface so that the label simply detaches from the sheet material very quickly. Furthermore, any attempt to directly print or write indications on the sheet material is difficult to do and even if successful the indications become distorted due to the movement of the sheet material. This therefore means that important instructions, identification means or information which can be carried on the packaging material, is not retained on the packaging material.

[0043] In accordance with the invention, there is provided a packaging sheet material of an improved form as illustrated in FIGS. 2a and b. In this embodiment the packaging material includes a first portion 23, which is typically the majority of the sheet material and in which a series of apertures in the form of slits 8 in a predefined pattern are provided as shown and which can be provided to have a similar form, when in the first, relaxed condition to that shown in FIGS. 1a and d and when in the second, expanded condition, to have a similar form to that shown in FIGS. 1b and c. As such the slits 8 of the first portion 23 can still be extended and opened so as to form substantially diamond or hexagon shaped apertures and so move the sheet material to the second, expanded condition as shown in the first portion 23 of the detailed part 25 of the sheet material of the invention as shown in FIG. 2b to provide the sheet material with the required packaging and protection effect. However, in accordance with the invention, there are also provided a series of second portions 24 which are provided at predetermined spaced locations on the sheet material as shown in FIG. 2a and these portions, in this embodiment, do not have any slits formed therein and instead form a substantially uniform continuous external surface 26 of the sheet material. It is the surfaces 26 of these second portions 24 which are therefore adapted to selectively be used to receive labels 22 and/or printed or written indications thereon and, as the said second portions 24 cannot significantly change condition when the movement or expansion force 16 is applied to the sheet material to move the sheet material to the second, expanded , condition so it will be appreciated that the adhesive strength of the connection between the label 22 and the surface 26 of the second portion 24 is significantly greater than if the label were to be applied to the surface of the first portion due to the apertures formed in the same. This is the case if the label is applied to the surface 26 when the sheet material is in the first, relaxed condition and the second, expanded, condition. As such, the label 22 and more importantly the information thereon is retained on the packaging material 2 during use of the same so that the said information is available during onward shipping of the article and/or to the end recipient of the article. As a result this potentially reduces the need for further packaging material or containers to be used.

[0044] FIG. 3 illustrates the packaging material 2 in accordance with the invention with a label 22 applied to the surface 26 of one of the second portions 24 of the packaging material and it will be appreciated that the second portions 24 can be provided at a spacing, and of a dimension, to suit particular uses whilst, at the same time, ensuring that the expansion and packaging effect of the packaging material 2 can still be achieved.

[0045] FIG. 4 illustrates an article 28 which has been packaged using packaging material 2 in accordance with the invention and it is shown that the protection of the article 28 is achieved as the first portion 23 of the sheet material can still be expanded, and a sufficient proportion of the sheet material is formed as the first portion 23 so as to ensure that the sheet material can still be sufficiently expanded, with the proportion of the first portion 23 of the sheet material to the second portions 24 of the sheet material, in one embodiment, being at least 75% whilst, at the same time, allowing identification labels 22 to be applied and/or information to be applied directly onto and retained on the surface 26 of the selected second portion 24 and as many of the other second portions 24 as required.

[0046] FIGS. 5a and b illustrate further embodiments of the invention in which, rather than the sheet material being formed of a single layer, the sheet material 2 is formed of a plurality of layers.

[0047] In FIG. 5a the part 20 of the sheet material 2 is shown in cross section and is formed of a first layer 30 and a second layer 32. In this embodiment each of the layers has the same configuration of first and second portions and are adhered together so that the first and second portions are in register. In FIG. 5b there is provided a sheet material formed with a third layer 34 and in this embodiment the layers 30, 32 are provided in the same arrangement as in FIG. 5a and sandwich the layer 34 which is provided with no second portion and is therefore wholly formed with slits 8 in a repeating pattern which may be the same as or different to the pattern of slits on the first portions 23 of layers 30 and 32.

[0048] Thus, in accordance with the invention there is provided a packaging material 2 which has the beneficial characteristics of recycling and providing a cushioning and protective effect on the article while, at the same time allowing the advantage of the provision of portions on which labels and information be provided and retained during use of the packaging material.