Wrapping material and method of manufacture for baling materials
A wrapping material for formed bales of material. The wrapping material including at least one layer of a flexible plastic material film web having a substantially uniform width and divided lengthwise into portions of substantially equal length by a plurality of spaced lines of perforations extending fully transversely across the width of the wrapping material and fully through the layer or layers forming the wrapping material. Each said line of perforations having a first adhesive substrate adhered to a first surface of said wrapping material adjacent to but spaced from the line of perforations. The first adhesive substrate extending substantially across the width of said wrapping material and having, in use, an outwardly facing adhesive surface, and a second adhesive substrate extending substantially across the width of said wrapping material and being adhesively secured to said first surface of the wrapping material whereby the second adhesive substrate overlies said line of perforations.
1. A wrapping material portion for wrapping a formed bale of material, said wrapping material portion comprising a base film web of a flexible plastic material film having at least one layer, a leading end of said base film web having a first adhesive substrate secured to a first surface of the base film web, said first adhesive substrate having a first outwardly facing adhesive surface and a first release liner overlying said first adhesive surface, and a second adhesive substrate adhered to said first surface at a trailing end of said material portion, said second adhesive substrate having a second outwardly facing adhesive surface and a second release liner overlying said second adhesive surface, wherein at least a portion of the second adhesive substrate extends beyond the trailing end of said material portion.
2. A wrapping material for formed bales of material, said wrapping material comprising at least one layer of a flexible plastic material film web having a substantially uniform width and divided lengthwise into portions of substantially equal length by a plurality of spaced lines of perforations extending fully transversely across the width of the wrapping material and fully through the layer or layers forming the wrapping material, each said line of perforations having a first adhesive substrate adhered to a first surface of said wrapping material adjacent to but spaced from the line of perforations, said first adhesive substrate extending substantially across the width of said wrapping material and having, in use, an outwardly facing adhesive surface, a second adhesive substrate extending substantially across the width of said wrapping material and being adhesively secured to said first surface of the wrapping material adjacent to the first adhesive substrate, whereby the second adhesive substrate overlies said line of perforations, a first release liner overlying the first adhesive substrate, and a second release liner overlying the second adhesive substrate.
3. A wrapping material according to claim 2 , wherein said first surface is intended, in use, to form an inner face of the wrapping material when applied to a formed bale.
4. A wrapping material according to claim 2 , wherein said second adhesive substrate is substantially non-extendible.
5. A wrapping material according to claim 2 , wherein the second adhesive substrate is weaker than the first adhesive substrate in said lengthwise direction of said plastic material film web.
6. A wrapping material according to claim 2 , wherein each said line of perforations include fully severed sections extending inwardly from at least one side edge of the wrapping material.
7. A wrapping material according to claim 2 , wherein a single said layer of flexible plastic material film web forms a base material of said wrapping material.
8. A wrapping material according to claim 2 , wherein at least two said layers of flexible plastic material film web form a base material of said wrapping material, said two or more layers being adhered or bonded together.
9. A wrapping material according to claim 8 , wherein the base material is formed by a blown extruded film tube pressed together to bond two said layers of flexible plastic material film web together.
10. A wrapping material according to claim 9 , wherein the blown extruded tube has a tube wall made up of two or more material layers.
11. A wrapping material according to claim 2 , wherein said first adhesive substrate includes a rubber based adhesive.
12. A wrapping material according to claim 2 , wherein the material intended to be wrapped is harvested cotton, harvested agricultural material other than cotton, or a non-agricultural material.
13. A wrapping material for wrapping a formed bale of solid material, said wrapping material having:
a base film web of a flexible plastic material film having at least one layer, the base film web having a first surface and a second surface and evenly spaced lines of perforation across the width of the wrapping material, defining lengthwise portions of wrapping material of substantially equal length of the base film web;
a first adhesive substrate adhered to the first surface of a particular lengthwise portion of wrapping material, the first adhesive substrate having an outwardly facing adhesive surface; and
a first release liner covering the first adhesive substrate, and having an outwardly facing adhesive surface;
wherein, when the wrapping material is rolled onto a roll, for the first adhesive substrate on the particular lengthwise portion of wrapping material, the outwardly facing adhesive surface of the first release liner adheres to the second surface of the same particular lengthwise portion of wrapping material such that, when the wrapping material is unrolled, the first release liner is separated from the first adhesive substrate, and remains adhered to said second surface of the same particular lengthwise portion of wrapping material, to expose the outwardly facing adhesive surface of the first adhesive substrate adhered to said first surface of the same particular lengthwise portion of wrapping material.
14. The wrapping material according to claim 13 , further including:
a second adhesive substrate adhered to the first surface of the base film web adjacent to the first adhesive substrate, the second adhesive substrate having an outwardly facing adhesive surface; and
a second release liner covering the outwardly facing adhesive surface of the second adhesive substrate.
15. The wrapping material according to claim 14 , wherein the first adhesive substrate extends substantially across the width of the base film web and the second adhesive substrate extends substantially across the width of the base film web.
16. The wrapping material according to claim 14 , wherein the second adhesive substrate at least partially overlies the evenly spaced lines of perforation.
17. The wrapping material according to claim 14 , wherein the second adhesive substrate is substantially non-extendible.
18. The wrapping material according to claim 13 , wherein the evenly spaced lines of perforation extend at an angle from a respective edge of the wrapping material to form an apex.
19. The wrapping material according to claim 13 , wherein the evenly spaced lines of perforation are fully severed through the base film web near each respective edge region to facilitate initiation of separation in use.
20. The wrapping material according to claim 13 , wherein the first surface of the base film web, in use, forms an inner face of the wrapping material when applied to the formed bale.
21. The wrapping material according to claim 13 , wherein at least two layers of flexible plastic material film web form the base film web of the wrapping material, the at least two layers being adhered or bonded together.