MXPA01005507A - Packing article, particularly for pre-baked and frozen dough products - Google Patents

Abstract

There is described a packing item (2), especially for prebaked and/or frozen dough items, e.g. pizzas, calzones, and pies, which packing item (2) at the side facing the dough item is provided with a so-called susceptor coating, for example consisting of a polyester coated, patterned metallizing or metal coating where a bottom part (4) of the packing item (2) is designed with a number of ventilation openings (8) around a central area (10).

Description

A PACKAGING ITEM, ESPECIALLY FOR PRECOCIOUS AND FROZEN PASTA ARTICLES DESCRIPTION OF THE INVENTION The present invention relates to a packaging article, especially for precooked and frozen pasta items and of the type indicated in the preamble of claim 1. Packaging articles of this type are known in many forms and for many specific purposes. For use for precooked and frozen pasta items, for example pizzas, calzones and cakes, intended for sewing in microwave ovens, for example packaging articles in the form of trays or plates are known which are preferably provided internally with a metallic coating. special microwave reflector. These specially coated packaging items for use in microwave ovens are referred to as "microwave susceptible articles" in the target field. In order to avoid excessive heating and firing of the pulp article, it is also known to use "safety susceptors" where the microwave reflector coating is not provided with the reflective coating in at least punctiform patterns or in separate areas. In this connection, it should be mentioned that the reflective coating only has the desired effect if the pasta article is in contact with the reflective coating. However, especially in central parts of, for example, pizzas, problems may arise with cooking or non-uniform heating, that is, overheated and burned areas or areas that become wet and uncooked may occur. Therefore, such wet areas that are not cooked within the central area or the superheated area in the outer areas (edges), have also only been avoided in practice by making relatively small pizzas. US-A-5 585 027 discloses a microwave-sensitive reheating support with perforations that allow changing the size and configuration of the substrate. For example, a round substrate may be provided with a circular pattern of detachment perforations radially spaced from within an outer circumference of the round substrate which allows the size of the substrate to be adjusted by removing the portion in the form of outer ring of the substrate for use with smaller sized food products. The release perforation designs may include one or more lines of release perforations extending through the substrate so that it can be divided into more parts, for example, to heat a slice of pizza instead of all the pizza . US-A-4 896 009 discloses a gas-permeable microwave reactive pack having a flat substrate and a microwave reactive layer adhered on a surface of the substrate having at least one opening that allows the gases and vapors generated to From cooked foods such as the crusts of large cakes cross the sheet allowing food products to remain in proximity to the reactive heater resulting in improved crispness and toasted consistency. The invention is for the purpose of providing an improved packaging article of the type mentioned in the introduction, and whereby the disadvantages are solved by means of simple provisions.

The packaging article according to the invention is characterized in that the packaging article around a central area of the lower part is provided with a number of ventilation openings. By means of simple provisions, this results in a new and improved packaging article, where the disadvantages with the overheated or uncooked areas are solved when the known packaging articles correspond. In this connection it should be mentioned that the outer configuration of the packaging article according to the invention can be circular, oval, elliptical, quadratic, rectangular or have another configuration according to what you want and need. Normally, the height of the packaging article according to the invention for use with pre-cooked or frozen pasta items such as pizzas, calzones and cakes are insignificant or rather small, although, for example, for use for frozen pasta items more large as white bread to cook in a microwave oven, the packaging article may have larger height, because at least the bottom of the side walls with perforations (openings of ventilation) of the highest packing item can possibly also be designed in this way. In order to ensure good access to the ventilation openings in the lower part, the packaging article according to the invention can be designed in this way that its bottom surface in the punctiform support area has a greater thickness or depth of so that the largest part of the lower part of the packaging article includes the central area that can be lifted freely from a supporting surface. In order to adjust in a simple manner the effect of the susceptor coating as well as the effect of the ventilation openings and to cover the pulp article, it can further be an advantage that the packaging article according to the invention is thus designed in accordance with the invention. so that the ventilation openings on the underside of the packaging article are covered by means of one or more removable labels which on the side confronting upwards the underside of the tray or tray, for example, are provided with a susceptor coating as the main function of the labels that is to cover the pasta item downwards so that the pasta item also only It has to be provided with a transparent lid as an appropriate sales package. Suitably, the packaging article according to the invention is further designed in this way so that the article along the periphery or the outer edge has a narrow annular area with greater thickness or depth, that is, so that the part The larger part of the lower part of the packaging item includes the central area which is situated at a level slightly higher than the annular zone, and which the outer annular zone is provided with the radial ventilation slots. A packaging article in the form of a circular tray for a pizza or similar pasta article which is adapted to be divided into a number of packaging articles by means of radial perforations, whose packing article in a circular central area is provided with edge parts bent inward which are adapted to constitute the "support shoulder" for the designated end portions of the divided packing articles. A packaging article according to the invention designed as a circular packaging article for a pizza or a similar article of pasta, in which the packaging article is made of a packaging article which in the flat state has a corrugated outer edge and which, in the upwardly bent state, has a downward support fringing along its periphery, the bearing frustum formed by wave crests of the outer edge, and It has radial ventilation openings formed by channels of the outer edge. A packaging article according to the invention and designed as a circular packaging article for a pizza or similar pasta article, in which the packaging article is designed with an outer annular support surface and its support or lower surface is it designs in this way and locates so that there is a distance of approximately 3-20 mm between the support or the lower surface and the support surface which is designed with radial ventilation openings. Alternatively, a packaging article according to the invention can be further provided, so that the packaging article is a box-shaped package from which the protective coated surface adapted to confront and touch the pasta article is provided on the outside of the box, preferably the side of the same, and so that the ventilation openings consist of prepared perforated fields adapted to be forced outwards when the susceptor surface is used as a raised supporting support for a pizza or other article of pasta, preferably extracted from the package in an oven of microwave. Finally, a packaging article according to the invention can be provided, so that the susceptor coated surface as a field is prepared to be released in order to create an opening in the lower part of the box preferably, and for the susceptor field to adapt afterwards to form a support support Loose elevated placed over the opening in an upturned position, since the susceptor field configuration may comprise three or more edges. The invention is explained in more detail in the following with reference to the drawings in which: Figure 1 shows a sectional view through an embodiment of a packaging article according to the invention, Figure 2 shows a plan elevation of a packaging article mode according to the invention, Figure 3 shows a plan elevation of a second embodiment of a packaging article according to the invention, Figure 4 shows an elevation In plan of a third embodiment of a packaging article according to the invention, Figure 5 shows a plan elevation of a packaging article according to the invention in which different types of ventilation openings are illustrated, Figure 6 shows a flat elevation of a fourth embodiment of a packaging article according to the invention, Figure 7 shows a sectional view through the packaging article shown in Figure 5 according to the invention, Figure 8 shows a viewed in section through the packaging article shown in Figure 6 according to the invention, Figure 9 shows a plan elevation of a fifth embodiment of a packaging article according to the invention, Figure 10 shows a sectional view through the packaging article shown in Figure 9, according to the invention, and Figure 11 shows a plane elevation to illustrate different ways to make ventilation openings in the lower part of a packaging article according to the invention. The packaging article 2 shown in Figure 1 is made of cardboard, plastic or a suitable packaging material (including, for example, a starch material) with a surface coating in the configuration of a susceptor coating, for example, which consists of a polyester film provided with a metal coating with possible geometric shapes comprising a bottom part 4 and enclosing the inclined side walls 6 as the packaging article 12 is intended for pizza or cakes cooked in a microwave oven. The bottom part 4 of the packaging article 2 as shown in Figure 2 is outside a central area 10 designed with ventilation apertures 8 mainly triangular. Alternatively, the bottom part 4 as shown in Figure 3 can be designed with a large number of ventilation openings 12 more small outside the central area 10 accommodated in concentric annular zones. Or the bottom part can be designed, as shown in Figure 4, with quite a few larger triangular ventilation openings 14. As also shown in Figure 1, the packaging article 2 has an outer annular edge 16 with greater depth so that the bottom part 4 can be lifted freely from a supporting surface. The annular edge 16 can preferably be designed in a manner not shown with the radial vent notches 18 so that the connection is made to the ventilation openings 8, 12 or 14. Finally, it will be noted that it will be within the scope of the invention also to provide the central area 10 of the bottom part 4 of the packaging article 2 with a number of ventilation openings. Likewise, it will be a possibility that the support area on the bottom surface is formed by folding edges down the ventilation openings (Figure 11). The bottom part 4 of a packaging article 20 according to the invention as illustrated in Figure 5, can be provided with different types of ventilation openings, mainly triangular ventilation openings 8 with radially inwardly increasing width, groups of circular or elliptical ventilation openings 22 or a number of narrow concentric ventilation openings 24 along the marginal area of the packaging article since the central area 10 is kept clear of the ventilation openings. And as it also appears in Figure 7, the packaging article 20 is designed with radial ventilation openings 26 and support jolt 28, respectively in an outer annular support area. The still flat packaging article shown in Figure 6 has a bottom surface 32 designed with a large number of radial ventilation openings 34 around a central area 10. The outer edge configuration 36 of the packaging article 30 has wave configuration so that the finished packaging article 30 as shown in Figure 8, reaches with this the radial ventilation openings 38 between the support fright 40 formed by the "wave crests". Alternatively, the packaging article 30 can be designed according to the same principle, but with a circular border configuration. In this case, the packaging article 30 can be designed with the radial ventilation openings 42 in the annular support skirt. The article 44 of packaging shown in Figures 9 and 10 are intended to be for a divisible pizza, ie for use in cases where only a part of a pizza will be cooked in a microwave oven. The packaging article 44 has three radial perforations 46 which, from the outer edge incisions 48 extend inwardly to a specially designed central area 50. This is designed within a circular edge 52 with a frustle 51"of support" which, when the packing article 44 that includes the pizza has been divided, serves as a support for the designated end (Figure 10) of article 44 of packaging divided so that optimal ventilation is still achieved under article 44 of divided packaging. 46 It seems to have been difficult to make the radial perforations without them that tend to break prematurely. In this connection, it seems to be advantageous to highlight the radial double lines 53 initially so that the material is narrow or pre-tensioned, which it seems to solve the problem of perforations 46 that break prematurely. Furthermore, in Figure 10 it is shown that the outer support edge of the packaging article 44 also has radial ventilation openings 54 and abutments 56, respectively. The packaging article 44 is designed with the radial ventilation openings in the bottom surface of the same type as per the packaging article 30, see Figure 6, although shown with the dotted line, the packaging article 44 can also be provided with circular ventilation openings or possibly provided with a combination of the types shown of ventilation openings. Figure 11 illustrates how the ventilation openings in the lower part of the packaging article can be designed in different ways, for example as common ventilation openings 8, 34. A vent opening formed in designing a cut shown as the solid lines 60 is observed at 58, after the tab 61 formed thereby swings down around the fold line 62 so that the free edge confronting downwards of the tongue 61 can serve as support for the bottom surface of the packaging item. A similar principle is used at 63 where a T-shaped cut is made after the two tabs formed thereby can be bent downwards and used as the partial support support jolt for the bottom surface. A corresponding principle is illustrated by 64, 65 and 66 where only a rectangular or serrated rectangular curve cut is made to form two tabs that can be subsequently rocked down around the dotted fold lines. By using such irregular cut lines the additional effect is achieved that the ventilation along the underside of the packaging article occurs more diffusely, in contrast to form the relatively close radial ventilation ducts between the tabs bent backwards. In that connection, it may additionally be an advantage that absorbing the edge portions of the packaging article material is exposed so that the material itself contributes to removing excessive moisture from, for example, a pizza. Such an absorbent effect of the edges of exposed material has of course an effect increased if the packaging article, for example, is made of paper pulp provided with the susceptor and surface coating. Preferably, the packaging article according to the invention is provided on one side with the susceptor coating on either side, but for the application to some pulp articles, for example, cakes, it can be an advantage that edge areas straight rings of the packaging item do not have the susceptor coating. On the other hand, it should be emphasized that the packaging article according to the invention makes it possible to make completely packaged new pasta items, for example pizza with filling, which immediately after production are packed in the packing article and frozen for storage as frozen products. In the use situation, the article of packaging with the pizza is placed directly inside a microwave oven for cooking for the service. In other words, it makes it possible to make stuffed pizzas without having a production oven available, something that in reality implies a remarkable simplification.

Finally it should be mentioned that the principle of the invention for designing the ventilation openings in the susceptor coated support surface of a package can be combined with known box packages for pizzas or other articles of pasta where an outer side of the box is provided. with a susceptor coating. The invention is to remove the pizza out of the box and place it on the susceptor coating of the box so that with this, the good entilación under the pizza is stabilized. In order to further optimize the ventilation, the susceptor coating, the invention may additionally be provided with ventilation openings or designed with perforated fields prepared to be pulled out when the susceptor coating of the box is used as a raised support lift for a pizza or another pasta item in a microwave oven. Another possibility may be that a box package for a pizza or other article of pasta within the background surface is designed with a field provided with the susceptor coating and which is prepared to be output, according to the intention, is to press the field susceptor way that the opening is created in the lower part of the box. This then turns so that the bottom of the box with the opening confronts upwards, after which, the susceptor field pressed outward, for example, can be triangular, is placed over the opening in an overturned condition, i.e. so that the susceptor field does not fall through openings that have the same configuration. The susceptor field can be further designed with an advantage with a number of ventilation openings which, for example, can be formed by pressing out the prepared perforated openings.

Claims (9)

1. CLAIMS 1. Packing article, especially for precooked and / or frozen pasta items, for example pizzas, calzones and cakes whose wrapping article on the side that is adapted to confront and touch the pasta article is provided with a susceptor coating on the form of, by way of example, a polyester film provided with a metal coating with geometric figures, the packaging article has a bottom part that rises freely from a support surface, characterized in that the packaging article about a central area of the bottom part is provided with a vent opening number. Packing article according to claim 1, characterized in that in the lower part of the packaging article, the ventilation openings are covered by means of one or more detachable labels that on the side face up towards the inner side of the plate or the tray which, as an example, is provided with a susceptor coating. Packaging item according to claim 1, characterized in that its surface bottom has a thickness or depth in punctiform zones so that the largest part of the bottom of the packaging article includes the central area that can be lifted freely from a support surface. Packing article according to claim 1, characterized in that along the periphery or the lower edge it has a narrow annular zone with larger thicknesses or depth, ie in such a way that the larger part the lower part of the article Packaging includes the central area which is located at a slightly higher level than the annular zone, and that annular outer zone is provided with radial ventilation slots. Packaging article according to claim 1, and designed as a packing article in the form of a circular tray for a pizza or a similar pasta item and which is adapted to be divided into a number of packaging items by means of perforations radials, characterized in that a circular central area is provided with edge portions bent downwards which are adapted to constitute the "support jolt" for the extreme pointed parts of the divided packing items. 6. Packing article according to claim 1, and designated as a circular packing article for a pizza or similar article of pasta, characterized in that it is made of a packaging article which in the flat state has a waved outer edge and which in the upwardly bent state has support shoulder downward along its periphery, the bearing frustum formed by ridge crests of the outer rim and has radial vent openings formed by channels of the outer rim. Packaging article according to claim 1, and designated as a circular packaging article for a pizza or similar pasta article, characterized in that it is provided with an outer annular support surface and that its support or bottom surface is designed in this way and locates so that there is a distance of approximately 3-20 mm between the support or bottom surface and the support surface which is provided with radial ventilation openings. 8. Packaging article according to claim 1, characterized in that the packaging article is a box-shaped package from which the susceptor cover surfaces are adapted to confront and touch the pulp article that is provided on the outside of the box, preferably the upper side thereof, and in that the ventilation openings consist of perforated fields, prepared or adapted to be pulled outwardly when the susceptor surface is used as a raised support support for the pizza or other pasta article, preferably extracted from the Package in a microwave oven. 9. Packing article according to claim 1 and 8, characterized in that the susceptor coated surface as a field is prepared to be exited in order to create an opening in the lower part preferably of the box, and the susceptor field is adapted thereafter to form a free raised support bracket placed over the opening in a flipped portion since the susceptor field configuration may comprise three or more edges. RE SUME N A packaging article (2) is described especially for precooked and / or frozen pasta items, for example, pizzas, calzones and cakes, whose packaging article (2) on the side facing the pasta article is provided with a so-called susceptor coating, for example, consisting of a polyester cover, a metallized coating with geometrical or metal figures wherein a bottom part (4) of the packaging article (2) is designed with a number of openings (8) Ventilation around a central area (10).