ES1216024U - FLEXIBLE COVER FOR CONTAINERS WITH OPENING EVIDENCE (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Flexible lid for containers with evidence of opening that can be applied to close a flat or barquette container (2) on top, and formed from a set of superimposed layers of the same shape and dimension as the perimeter edge of said container (2) on which it is fixed, is characterized by comprising, at least, the following layers: - An upper layer (10), constituted by a sheet of thermoplastic material that is printed on its lower face with commercial graphic and/or alphanumeric elements (c), incorporated in the central part (10a) of said sheet in a visible way the external part, and with graphic and/or alphanumeric security elements (s) incorporated in a hidden manner only on the perimeter side of the sheet in correspondence with the opening zone (1 0b). - An intermediate layer (11) of adhesive that joins the upper layer (10) with a lower layer (12) and is divided into two zones with two different types of adhesive: a first zone (ha) with fixed bonding adhesive remaining in correspondence with the aforesaid central part (10a) of the sheet of the upper layer (10) where it incorporates the commercial graphic elements, and a second area (11b) with removable adhesive remaining in correspondence with the opening area (10b) of the lateral perimeter of the sheet of the upper layer (10) where it incorporates the graphic security elements (5). - And a lower layer (12) consisting of a sheet co-extruded or complexed with thermoplastic barrier and sealing materials, which is welded to the container (2) and has two parallel pre-cut lines (13) defining a band (14) located in one of its sides thereof, coinciding with the position of the area (11b) with removable adhesive of the intermediate layer (11) which, in turn, is coincident with the graphic security elements (s) of the sheet of the upper layer (10) in the opening area of the container. (Machine-translation by Google Translate, not legally binding)

Description

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FLEXIBLE COVER FOR CONTAINERS WITH OPENING EVIDENCE

D E S C R I P C I O N

OBJECT OF THE INVENTION

The invention, as expressed in the statement of the present specification, refers to a flexible lid for packages with evidence of opening that contributes, to the function to which it is intended, advantages and novelty characteristics, which are described in detail below. , which represent an improvement in the current state of the art.

More specifically, the object of the invention is centered on a lid for flat or boat-type containers intended to contain food or other products, of those formed by a flexible sheet for easy opening and closing, whose structural configuration from different layers, It is specially designed to provide a means that guarantees that the package has not been opened and the product handled before opening by the final consumer without evidence of it.

FIELD OF APPLICATION OF THE INVENTION

The field of application of the present invention is part of the industry sector dedicated to the manufacture of packaging, focusing particularly on the scope of the lids and closing means for them, and more specifically the flexible laminate lids.

BACKGROUND OF THE INVENTION

Currently, barge-type or flat containers for containing food or other products that have a flexible laminated lid that closes the perimeter of the container, and which normally has a flap for easy opening, allowing to close and open again are known in the market said cover thanks to the use of removable adhesive to keep the product properly covered until it has been completely consumed.

The problem with this type of lid is that, once opened, since it can be properly closed again, there is a possibility that the container has been opened and the product

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handled before it reaches the final consumer without this or the merchant noticing it, since the current lids of this type of packaging do not have the means to make a first opening of the same evident, which would be desirable to avoid possible fraud and guarantee the inviolability of the product before it is put up for sale, being the development of a cover that presents said guarantee the objective of the present invention.

On the other hand, and as a reference to the current state of the art, it should be noted that, although it has been said that containers with similar flexible caps are known, at least on the part of the applicant, the existence of no other flexible packaging lid is unknown. with evidence of openness or any other invention of similar application that presents the same or similar technical, structural and constitutive characteristics to those presented by the cover claimed herein.

EXPLANATION OF THE INVENTION

The flexible lid for containers with evidence of opening that the invention proposes is thus configured as a novelty within its field of application, since according to its implementation and in a restrictive way the objectives previously indicated as suitable are satisfactorily achieved, being the characterizing details that make it possible and that distinguish it conveniently included in the final claims that accompany this description.

More specifically, what the invention proposes, as noted above, is a lid for flat plastic containers or boat-type containers, intended to contain food or other products, which, being made up of a flexible sheet of easy opening and closing, which is fixed perimetrically to the container, is distinguished by presenting a novel structural configuration from different layers that, advantageously, provides a means that guarantees that the package has not been opened and the product previously manipulated upon opening by part of the final consumer without evidence of it.

For this, the mentioned structure of the cover essentially comprises the following layers:

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- An upper or outer layer, consisting of a sheet of thermoplastic material that is printed on its underside with commercial graphic and / or alphanumerical elements, corresponding to the product to which the container is destined, incorporated in the main or central part of the aforementioned laminated visibly on the outside, and also printed on the same side and hidden on the outside, with graphic and / or alphanumeric safety elements incorporated in this case only on one or more sides of the sheet that remain in correspondence with the opening areas of the container.

- An intermediate layer of adhesive divided into two types, one consisting of fixed bonding adhesive that covers the area that corresponds to the above part of the upper sheet that incorporates the commercial graphic elements, and another consisting of removable adhesive that covers the zone that corresponds to the also described part of the top sheet that incorporates the graphic security elements.

- And a lower layer consisting of a coextruded or complexed sheet with thermoplastic barrier and sealing materials, which has parallel pre-cut lines that define a band coinciding with the position of the removable adhesive layer which, in turn, is coinciding with the graphic safety elements of the upper sheet in the opening area of the container.

With this, the resulting final packaging is a container composed of a lower part in flat form or with a bottom, where the product is introduced and closed with the flexible lid of the invention, composed of different sheets joined together and welded by its lower part to the perimeter of the container, leaving the product between both elements, where one of the sides of the lid allows its easy opening by means of a small flap that originates in the final seal that, when pulled, makes the graphic elements emerge safety printed under the first layer of the lid, showing that the packaging has been tampered with.

The adhesive retained in the flap allows to close and open the lid as many times as desired.

The described flexible lid for containers with evidence of opening represents, therefore, an innovation of structural and constitutive characteristics unknown until now, reasons that together with its practical utility, provide it with sufficient foundation to obtain the

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exclusivity privilege requested.

DESCRIPTION OF THE DRAWINGS

To complement the description that is being carried out and in order to help a better understanding of the characteristics of the invention, this descriptive report is attached, as an integral part thereof, of a set of drawings in which with an illustrative character and non-limiting the following has been represented:

Figures 1 and 2 show two schematic perspective views of an example of the flexible cover for packages with evidence of opening, object of the invention, incorporated, respectively, in a boat-type container and in a flat container, appreciating its general external configuration and disposition on said container.

Figure number 3.- Shows a schematic sectional view of the cover of the invention, according to an A-A section shown in Figure 1, showing the configuration of the layers it comprises.

Figures number 4-A, 4-B and 4-C.- They show respective schematic views of the container with the lid in its closed and intact phases in Figure 4-A, showing only the visible commercial text, opened in the figure 4-B appreciating how the precuts lift the security text, and close again in Figure 4-C appreciating the security text that shows that it has been previously opened.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the aforementioned figures, and in accordance with the numbering adopted, an example of non-limiting realization of the flexible lid for packages with evidence of recommended opening can be observed, which comprises the parts and elements indicated and describe in detail below.

Thus, as can be seen in these figures, the lid (1) in question, applicable to superiorly close a flat or boat-shaped container (2), is formed from a set of overlapping layers of the same shape and size as the perimeter edge of said container on which it is fixed, comprising at least the following layers:

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- An upper layer (10), constituted by a sheet of thermoplastic material that is printed on its lower face with commercial graphic and / or alphanumerical elements (c), incorporated in the central part (10a) of said sheet visibly by its external part, and with graphic and / or alphanumeric safety elements (s) incorporated only on the perimeter side of the sheet in correspondence with the opening area (10b) and hidden by the external part, preferably, in the opening area determined by a flange (p) that facilitates said opening, although they can be incorporated in any part of said opening area (10b).

- An intermediate layer (11) of adhesive that joins the upper layer (10) with a lower layer (12) and is divided into two zones with two different types of adhesive: a first zone (11a) with fixed bonding adhesive remaining in correspondence with the aforementioned central part (10a) of the sheet of the upper layer (10) where it incorporates the commercial graphic elements, and a second zone (11b) with removable adhesive that is in correspondence with the opening zone (10b) of the Perimeter side of the upper layer sheet (10) where it incorporates the graphic safety elements (s).

- And a lower layer (12) consisting of a co-extruded or complexed sheet with thermoplastic barrier and sealing materials, which is welded to the container (2) and has parallel pre-cut lines (13) that define a band (14) located on one of its sides thereof, coinciding with the position of the area (11b) with removable adhesive of the intermediate layer (11) which, in turn, coincides with the graphic safety elements (s) of the sheet of the upper layer (10) in the opening area of the container, so that, when opening the lid, said graphic safety elements (s) are visible.

Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to make its explanation more extensive so that any expert in the field understands its scope and the advantages that derive from it, stating that, within its essentiality, it may be carried out in other forms of realization that differ in detail from that indicated by way of example, and to which it will also achieve the protection that is sought as long as it does not alter, change or modify its fundamental principle .

Claims (2)

5 10 fifteen twenty 25 30 35 R E I V I N D I C A C I O N E S 1. - FLEXIBLE COVER FOR CONTAINERS WITH OPENING EVIDENCE which, applicable to superiorly close a flat or boat-shaped container (2), and formed from a set of overlapping layers of the same shape and dimension as the perimeter edge of said container (2) on which it is fixed, is characterized by comprising at least the following layers: - An upper layer (10), constituted by a sheet of thermoplastic material that is printed on its lower face with commercial graphic and / or alphanumerical elements (c), incorporated in the central part (10a) of said sheet visibly by the external part, and with graphic and / or alphanumeric safety elements (s) incorporated in a hidden way only on the perimeter side of the sheet in correspondence with the opening area (10b). - An intermediate layer (11) of adhesive that joins the upper layer (10) with a lower layer (12) and is divided into two zones with two different types of adhesive: a first zone (11a) with fixed bonding adhesive remaining in correspondence with the aforementioned central part (10a) of the sheet of the upper layer (10) where it incorporates the commercial graphic elements, and a second zone (11b) with removable adhesive that is in correspondence with the opening zone (10b) of the Perimeter side of the upper layer sheet (10) where it incorporates the graphic safety elements (s). - And a lower layer (12) consisting of a co-extruded or complexed sheet with thermoplastic barrier and sealing materials, which is welded to the container (2) and has parallel pre-cut lines (13) that define a band (14) located on one of its sides thereof, coinciding with the position of the area (11b) with removable adhesive of the intermediate layer (11) which, in turn, coincides with the graphic safety elements (s) of the sheet of the top layer (10) in the opening area of the container. 2. - FLEXIBLE COVER FOR PACKS WITH OPENING EVIDENCE, according to claim 1, characterized in that the graphic and / or alphanumeric safety elements (s) are incorporated in the opening area of the perimeter side of the sheet determined by a flange (p ) that facilitates such opening.