ES1304327U - BIODEGRADABLE PACKAGING (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Biodegradable container, comprising a laminar mesh structure in the shape of a bag with a mouth (5) delimited by a perimeter edge that is part of said laminar mesh structure; where said laminar mesh structure is made of biodegradable material; characterized in that: - it comprises a first laminar body (1) with a mesh structure that includes two opposite parts (1a, 1b) with the integration of the perimeter edge that delimits the mouth (5) of the container; - a second laminar body (2) with a mesh structure that interrupts the continuity of at least one of the two opposite parts (1a, 1b) of the mesh structure of the first laminar body (1); where the mesh structure of the first laminar body (1) includes first holes that have a size smaller than second holes of the mesh structure of the second laminar body (2); and where the second laminar body (2) comprises a closed contour (3) that corresponds to a window of the same shape as the at least one interruption of continuity of one of the two parts (1a, 1b) of the first laminar body (1), and where the first laminar body (1) and the second laminar body (2) are manufactured with a natural plant fiber material, and coated, at least one of them, with a starch material. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

BIODEGRADABLE PACKAGING

Object of the invention

The present invention refers to a biodegradable container that is preferably framed in the food industry and is aimed at a food container, type bag, or sack made of completely biodegradable materials and, therefore, it is a disposable container. It is also applicable to the packaging of any other product or even in the manufacture of items for domestic use such as hand baskets, bags, etc.

Background of the invention

There is currently a strong tendency to reduce the production and consumption of plastic materials, mainly by replacing them with packaging made from environmentally compatible materials and legislation that promotes said reduction in the consumption of plastic materials.

Materials of plant origin commonly used in the manufacture of fabrics and similar are already known and have begun to be used in the manufacture of packaging, such as bags. Among these materials are cotton, linen, jute, hemp, bamboo, banana plant, palm, palm leaves or a combination thereof.

Thus, in the case of jute, the main destination of the fiber extracted from it is currently the manufacture of packaging bags. It is also frequently used to make ropes. It is used less for fabrics, due to the treatment it requires, its high lignin content, and the competition from synthetic fibers, although jute has the advantage of being degradable and therefore not causing ecological damage.

Jute and other degradable textile materials are already used for sacks or bags, but in woven form, practically opaque to the contents inside.

In view of the difficulties detected in the field of technology to find and work with substitute materials for plastic, the present invention has been developed, which is a biodegradable, disposable container, which is presented as an alternative to plastic containers for commonly used foods.

This same owner is the owner of the utility model U 201831506, which describes a special morphology of biodegradable packaging of this type, but which presents certain limitations when applied to the packaging of some products; where it would be convenient for said container to have several differentiated areas, especially adapted to the products contained.

Thus, the proposed container of the present invention is manufactured in a single type of material and from a special morphology of sheet that closes on itself, forming the entire body of the container.

Description of the invention

In order to achieve the objectives and avoid the drawbacks mentioned in the previous sections, the invention proposes a biodegradable container that comprises a laminar mesh structure in the form of a bag with an mouth delimited by a perimeter edge that is part of said laminar structure of mesh; where said laminar mesh structure is made of biodegradable material.

The container comprises a first laminar body and a second laminar body; where the first laminar body is formed by a mesh structure that includes two opposite parts with the integration of the perimeter edge that delimits the mouth of the container.

The second laminar body comprises a mesh structure that interrupts the continuity of at least one of the two opposite parts of the mesh structure of the first laminar body.

The mesh structure of the first laminar body includes first holes that have a smaller size than second holes of the mesh structure of the second laminar body; where the second laminar body comprises a closed contour that corresponds to a window of the same shape of the first laminar body. In a possible embodiment, both lamellar bodies can cover the entire front and rear surface and be joined perimeter.

In another possible embodiment, the closed contour joining area between the first laminar body and the second laminar body includes a closed contour band of biodegradable material; where said band has a route parallel to the contour of the second lamellar body; and where said band participates in the union between the first laminar body and the second laminar body as a reinforcing edge.

The first laminar body and the second laminar body are manufactured with a natural plant fiber material, and coated, at least one of them, with a starch material.

The natural plant fiber material of the first and second lamellar bodies is selected from the group composed of cotton, linen, hemp and jute; while the band, which constitutes the reinforcing trim, is made of a textile material or non-woven material, made of natural fiber, or a combination of the above, for example: jute and cotton, jute and canvas.

The mesh structure of the first laminar body comprises two parallel four-sided holes with a size between 0.3 mm. and 3 mm., while the mesh structure of the second laminar body (2) comprises holes with four parallel sides two by two with a size between 3 mm. and 20 cm (in the case of transporting large products such as a watermelon). The thickness or weight of the mesh with holes would be greater and would be adapted to compensate for the size of the holes and maintain the mechanical resistance of the container.

The perimeter edge that delimits the mouth of the container includes closure means formed by a textile strip of plant fiber located in a tubular gap delimited by a portion of the first laminar body that constitutes a gather, and can also add a handle to it, composed of jute, hemp, cotton or similar.

Furthermore, if necessary, depending on the product to be packaged (also the size of the product) that we are going to put in the container, it would also be possible to use the coating on both sides: front and back.

Example: the nuts need to be packaged in plastic or other similar material, with shell (without shell is obvious), changing the size of the holes to the minimum plus the starch treatment thus allows them to be packaged in this container (closed on both sides and discarding the plastic) Some creams or organic perishable products also need this protection in their packaging.

Below, to facilitate a better understanding of this descriptive report and forming an integral part thereof, a series of figures are attached in which the object of the invention has been represented, with an illustrative and non-limiting nature.

Brief description of the figures

Figure 1.- Shows a front view of the biodegradable container, object of the invention, showing the use of the two different mesh structures.

Figure 2.- Shows another front view of the container of the invention, where a single type of mesh covers the entire side.

Figure 3.- Shows a perspective view of a part of the container of the invention where the structure of its mouthpiece stands out.

Description of an example of embodiment of the invention

Considering the numbering adopted in the figures, the biodegradable packaging has a bag structure and is intended to house food, and in general other products, in its interior space.

It comprises a container structure made of at least a first main laminar body (1) and a second laminar body (2), both manufactured with biodegradable materials, but with different structural characteristics. The two lamellar bodies (1, 2) are joined creating an interior compartment and a mouth (5), through which you can access the interior space of the container with a bag-shaped structure.

The first laminar body (1) comprises two opposite faces or parts (1a, 1b), in correspondence with one of which the second laminar body (2) is located.

The two laminar bodies (1, 2) components of the container of the invention are made with mesh (net) materials of natural plant fiber, and coated, at least one of them, with starch.

The natural plant fiber material is selected from the group composed of cotton, linen, canvas, hemp and jute, presenting the first main lamellar body (1), holes on four parallel sides two by two with a size between 0.3 mm. and 3 mm., while the second laminar body (2) that is attached to said first laminar body (1) through its contour (3), forming product display areas, also has holes on four parallel sides two by two with their sides between 3 mm. and 20 cm.

The holes of the two lamellar bodies (1,2) with a mesh structure have, regardless of their size, a preferred tolerance index between 1% and 20%, and even more preferably between 5% and 20%. In a particular embodiment of the invention, the size of the holes formed in the first laminar body (1) of plant fiber is 0.7 mm x 0.7 mm. In a particular embodiment, the size of the holes formed in the mesh or laminar body (2) of plant fiber is 7 mm. x 7 mm, and in another embodiment it is 10 mm. x 10mm. In the case of rectangular holes, an example of an embodiment includes 7 mm holes. by 10 mm.

The size of the holes of the two laminar bodies (1,2) with the mesh structure is significantly important since it allows good mechanical resistance of the first laminar body (1) to be achieved without giving up the correct viewing of the inner product in the areas where the second laminar body (2) is applied, to select said areas depending on the type of product to be packaged. In the embodiment shown in the figures, and more specifically in Figure 1, it is seen how the second laminar body (2) is only applied to a part of one of the two opposite faces (1a, 1b) of the container in the form of bag, without covering the entirety of said face of the container.

Within the scope of protection of the present invention, any given range of values should be considered to also contain its two limits, lower and upper, as part of the invention.

The consistency and mechanical resistance of the meshes of plant fiber threads that make up the packaging of the invention is achieved thanks to the starch treatment that is applied to them, which acts as a coating for the fiber threads. This treatment, impregnation with starch and subsequent drying, reduces the malleability of the plant fiber, especially jute, making it more rigid. This is important, since when working with such large hole measurements compared to the very small measurements that these meshes usually have, for example, in bags, the container would be excessively soft, in its final finish, and of little consistency to house certain products, with which quality would be lost in order to correctly display the product contained within the packaging.

Therefore, in a preferred embodiment of the invention, it will be enough to apply the starch treatment only to the second laminar body (2) with a mesh structure, which is more prone to deformation as a result of the larger size of its holes, although depending on the type of product to be packaged or functional needs, you may choose to apply the starch treatment to both laminar bodies (1,2) with a mesh structure, although preferably only to the second laminar body (2) with the largest holes. as described above.

Preferably, the starch is corn, which is a biodegradable food component, without prejudice to using other starches that produce the same effect. Particularly, in the most preferred embodiment, corn powder is used as starch, 100% natural and food grade.

To treat the two laminar bodies (1, 2) with the mesh structure, a solution in water of said corn powder is used, in a concentration between 2% and 20%, that is, between 2 kg are used. and 20 kg. for every 100 liters of water, preferably filtered water, to prepare the solution with which the mesh will be coated or coated.

The two lamellar bodies (1, 2) with the mesh structure are preferably formed by intertwined plant fiber thread to form the reticle or grid, although in other embodiments said fiber thread can be knotted, joined by adhesive, or any other method. another known way or technique in the manufacture of fabrics.

In the most preferred embodiment, the natural plant fiber used in both laminar bodies (1, 2) with the mesh structure is jute; even more preferably, it is unlaminated jute (that is, not laminated, or not associated with any other material); and in the most preferred embodiment, jute without lamination is used. Preferably, the jute thread for the second laminar body (2) has a weight between 80 and 200 gsm, preferably between 90 and 200 gsm, and even more preferably between 97 and 105 gsm (grams per m2).

The biodegradable packaging of the invention for food described herein additionally comprises at least one band (4) of textile material or non-woven material, of natural fiber or made of any material compatible with the food in contact, which is adhered to any of the exterior or interior surfaces of the two laminar bodies (1,2), to decorate, reinforce, edge or admit legends, brands or indications of the product contained; where said band (4) is located parallel to the contour (3) that delimits the second laminar body (2).

Thus, in the embodiment of the invention shown in the figures, said band (4) is used as a reinforcing edge in the joining area of the two laminar bodies (1,2), specifically bordering the entire perimeter of window-shaped union.

This band (4) of textile material is preferably sewn or joined with adhesive. The container may also comprise one or more bands (4) of textile or non-woven material located on one or both sides (1a, 1b) of the first sheet (1) as reinforcement and closure, to improve the appearance and consistency of the container.

The biodegradable container of the invention can also be provided at its mouth (5) with closing means (6), such as a textile strip or plant fiber rope, gathered or sewn on the edge that delimits the mouth (5) of the container and that allows it to be closed by stretching the strip or rope; It can also incorporate the classic extensions as a handle to facilitate transportation by holding them.

The size of the container should not be considered a limitation of the invention, although preferably the main body formed by the first laminar body (1) of plant fiber has a length between 200 and 400 mm, while the other side that determines the Width has a length between 200 and 400 mm, including all possible combinations of measurements delimited between 200 and 400 mm.

Claims (7)

1. - Biodegradable container, which comprises a laminar mesh structure in the shape of a bag with an mouth (5) delimited by a perimeter edge that is part of said laminar mesh structure; where said laminar mesh structure is made of biodegradable material; characterized by: - comprises a first laminar body (1) with a mesh structure that includes two opposite parts (1a, 1b) with the integration of the perimeter edge that delimits the mouth (5) of the container; - a second laminar body (2) with a mesh structure that interrupts the continuity of at least one of the two opposite parts (1a, 1b) of the mesh structure of the first laminar body (1); where the mesh structure of the first laminar body (1) includes first holes that have a size smaller than second holes of the mesh structure of the second laminar body (2); and where the second laminar body (2) comprises a closed contour (3) that corresponds to a window of the same shape as the at least one interruption of continuity of one of the two parts (1a, 1b) of the first laminar body ( 1). and where the first laminar body (1) and the second laminar body (2) are manufactured with a natural plant fiber material, and coated, at least one of them, with a starch material. 2. - Biodegradable container, according to claim 1, characterized in that the closed contour joining area between the first laminar body (1) and the second laminar body (2), includes a closed contour band (4) of biodegradable material. ; where said band (4) has a path parallel to the contour (3) of the second laminar body (2); and where said band (4) participates in the union between the first laminar body (1) and the second laminar body (2) as a reinforcing edge. 3. - Biodegradable container, according to any one of the previous claims, characterized in that the first laminar body (1) and the second laminar body (2) are manufactured with a natural plant fiber material, and coated, at least one of them. , with a starch material. 4.- Biodegradable container, according to claim 3, characterized in that the natural plant fiber material of the first (1) and second (2) laminar bodies is selected within the group composed of cotton, linen, hemp, jute, bamboo, canvas, banana plant, palm, palm leaves or a combination thereof. 5. - Biodegradable container, according to any one of the previous claims, characterized in that the band (4) is made of a textile material or non-woven material, made of natural fiber. 6. - Biodegradable container, according to any one of the previous claims, characterized in that the mesh structure of the first laminar body (1) comprises holes on four parallel sides two by two with a size between 0.3 mm. and 3 mm., while the mesh structure of the second laminar body (2) comprises holes with four parallel sides two by two with a size between 3 mm. and 20cm 7.- Biodegradable container, according to any one of the previous claims, characterized in that the perimeter edge that delimits the mouth (5) of the container includes closure means (6) formed by a textile strip of plant fiber located in a tubular cavity. delimited by a portion of the first laminar body (1) that constitutes a gather.