ES1289450U - Biodegradable tubular envelope with several mesh thicknesses (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A wrapper (10, 20) for packaging or packaging of products comprising at least one mesh (12, 22) characterized in that it comprises at least two zones (14, 16, 18, 24, 26) of different opening or thickness of Mesh and with a width or constant diameter in all its length. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Biodegradable tubular casing with various mesh thicknesses

Technical field of the invention

The present invention belongs to the technical field of packing and packaging products, in particular cylindrical-shaped products, such as products supplied in the form of a rolled sheet, such as reeds, wicker rolls, fabrics for agricultural use, etc.

Background of the invention

Currently, plastic is used ubiquitously in the packaging and packaging sector for all kinds of products. There is currently a great social awareness of the negative effects on the environment of the massive use of plastics in the packaging and packaging of products. This is essentially due to its non-biodegradability, which produces its massive accumulation in the environment, and in a particularly negative and significant way in the seas and oceans, where it has a very negative effect on marine fauna, as is commonly illustrated in numerous publications. and television shows, in which marine animals are seen accidentally ingesting large quantities of plastic objects, ultimately leading to their premature death.

Summary description of the invention

The present invention provides a wrapper comprising a mesh with at least two areas of different opening or mesh thickness and with a constant width or diameter throughout its length.

With a casing with at least two zones of different opening or mesh thickness it is possible to achieve that the casing has two different functionalities in each zone of different opening or mesh thickness.

For example, the area with a thicker mesh, that is, with a higher density of mesh fabric per surface unit, achieves a wrapper with greater mechanical resistance and greater product protection than an area with a smaller mesh thickness, which it is more suitable, for example, at the ends of the wrapper, to protect the ends of the product and prevent it from unraveling.

On the contrary, the area with less mesh thickness is more appropriate for the central area of the casing, because it has lower mechanical stress requirements, which reduces the amount of material used in the casing and its weight.

In addition, an area with greater visibility is produced through the mesh in its area of lower density or thickness, which allows the product to be visually inspected and also to have an informative label or brochure inside the mesh, so that the consumer can acquire information on the product without having to unpack it, or use adhesives or other means of holding the information brochure on its outside, such as staples or the like.

For example, if the cylindrical products are very long, it is possible that the casing has several areas of higher mesh density, even in its central part, to give consistency to the casing, interspersed with areas of lower mesh density.

Preferably the mesh is made from circular knitting of yarn or yarn or string. Being made of circular fabric, it is suitable for packaging cylindrical or sheet products rolled into a cylindrical shape, such as rolls of reeds, wicker covers, agricultural fabric, mats, etc.

Preferably the fabric is of the crochet type, that is, warp interlaced. In this way, the production of the casing can be carried out automatically on one machine.

Preferably the mesh comprises biodegradable natural fiber thread or yarn or cord. In this way, the mesh does not remain in the environment indefinitely, and degrades naturally due to microbial decomposition processes over time. relatively short, compared to plastic wrap. Among the natural fibers suitable for the threads, yarns or cords of the mesh are cotton, both virgin and recycled, hemp, bamboo, etc. Alternatively, Kraft paper yarn can also be used, which despite not being natural, is easily biodegradable.

The wrapper can be produced in a variety of lengths, widths or diameters, depending on the product to be packed. The mesh fabric can define one or different geometric shapes in the mesh, such as a quadrilateral, triangle and/or hexagon, so that the mechanical strength of the mesh can also be adjusted in this way.

Brief description of the figures

The following drawings show embodiments of the invention, without intending, in any case, to constitute a limitation thereof.

Figure 1. Figure 1 represents a tubular casing comprising a mesh with several zones of different opening or mesh thickness and with a constant width or diameter throughout its length, according to an embodiment of the present invention.

Figures 2. Figure 2 represents a tubular casing comprising a mesh with three zones of different opening or mesh thickness and with a constant width or diameter throughout its length, according to an embodiment of the present invention, applied for the packaging of a hurdle roll

Detailed description of the invention

Figure 1 represents a tubular casing 10 comprising a mesh 12 with several zones of increased mesh thickness 14, zones with medium mesh thickness or density 16 and other zones with low mesh thickness 18, compared to the other zones. The casing 10 has a constant diameter throughout its length and has a crochet fabric that defines quadrilaterals, but meshes that define other geometric figures, such as hexagons, triangles, rhombuses, etc., can be considered.

The mesh is made from 1.5mm thick cotton twine, which is biodegradable, and is black in color, although any color can be used. The mesh wrap is automatically woven by machine.

Figure 2 represents a roll of hurdle 19 packed with tubular wrapping 20 comprising a mesh 22 with several three zones of different mesh thickness, two zones with high mesh thickness or density 24 at the ends and another zone with low mesh thickness 26. , compared to the other two zones. The casing 20 has a constant diameter throughout its length and is crocheted to define quadrilaterals.

The mesh is made from automatically woven 0.5mm thick hemp yarn.

Claims (6)

1. An envelope (10, 20) for packing or packaging products comprising at least one mesh (12, 22) characterized in that it comprises at least two zones (14, 16, 18, 24, 26) of different opening or thickness of mesh and with a constant width or diameter throughout its length. 2. An envelope according to claim 1, characterized in that the at least one mesh comprises several areas of higher mesh density interspersed with areas of lower mesh density. 3. An envelope according to claim 1 or 2, characterized in that the at least one mesh is made of circular fabric of yarn or yarn or cord. 4. An envelope according to claim 3 characterized in that the fabric is of the crochet type, that is, warp interlaced. 5. An envelope according to claim 4, characterized in that the fabric defines one or different geometric shapes in the at least one mesh, such as a quadrilateral, triangle and/or hexagon. 6. A casing according to any preceding claim, characterized in that the at least one mesh comprises biodegradable natural fiber thread or yarn or cord.