FR2797853A1 - Support for cooking pizza comprises corrugated layer enclosed between two outer layers, at least one of which is of food quality - Google Patents

Abstract

The support for food products comprises a corrugated layer (2) enclosed between two outer layers (3, 4), at least one of which is of food quality. The material of food quality may be sulfurised paper.

Description

The present invention relates to a food carrier and a method of manufacturing such a carrier.

In the food industry, for cooking food products such as pizzas, they are placed on a rigid support such as a metal plate or a corrugated cardboard plate on which a sheet of parchment paper has been previously arranged to prevent the food from sticking <B> to the plate during cooking. After baking in an oven, the cooked food is usually prepared for marketing on another support, such as corrugated cardboard and / or packaging. The food product, after possible freezing, can then be removed this marketing medium and be warmed to be consumed. cooking the food product requires the establishment of a parchment paper sheet. The marketing of the product and its cooking require several supports of different natures.

The first object of the present invention is to provide food support for cooking and marketing of food products and where appropriate reheating and freezing of the food product.

This object is achieved by the fact that the food carrier according to the invention is characterized in that it comprises a plate consisting of at least three resistant sheets <B> to </ B> heat, including a first fluted central sheet sandwiched between two outer sheets, the outer sheets being secured to the central sheet, at least one of the two outer sheets being food grade material, the flutes of the central sheet for stiffening the plate to form a shaped support for the cooking and the marketing of food products. In another feature, the food grade material is parchment paper.

In another feature, the three sheets are made of a food grade material.

In another feature, the central fluted sheet has a basis weight of between <B> 50 </ B> and 200 grams per square meter, and the outer sheets have a basis weight of between <B> 50 </ B> and <B> 600 square meters.

According to another feature, the central sheet has <B> 300 to </ B> fine flutes per linear meter, a height of the order of one millimeter. In another feature, the sheets withstand <B> to </ B> cooking temperatures of at least <B> 200 "C </ B> and withstand <B> at freezing temperatures.

According to another feature, the three sheets are made of parchment paper.

In another feature, one of the outer sheets of parchment paper may be removed manually from the fluted central sheet. According to another particularity, the leaves are secured by food glue <B> to a starch base.

Another object of this is to provide a method of manufacturing a food carrier.

This is achieved by the fact that the alimentary support manufacturing process according to the invention is characterized in that it comprises obtaining a first corrugated sheet, the bonding of a second sheet to the corrugation ridges of a first face of the fluted sheet, bonding a third sheet to the corrugation ridges of the second face of the first sheet, these operations being obtained by a set of means comprising smooth or fluted rolls, the three sheets being sheets of food grade paper, the collages being made <B> at </ B> a working temperature determined by food glue.

According to another feature, the manufacturing method comprises obtaining a corrugated sheet by passing a first sheet between a pair of corrugated rolls, comprising an upper roll and a heated bottom roll, the application of food glue on the corrugation ridges of the first sheet positioned on the lower fluted roller by a sizing mechanism, pressing and gluing of a second sheet, fed by a smooth compression roller heated against the ridges of the corrugations of the flutes of the first sheet, the sheets and the glue being brought <B> to </ B> a working temperature determined via heated rollers, the application of food glue on the corrugation ridges of the flutes of the first sheet, by a sizing mechanism, the application of a third sheet fed by a smooth application roller on the crests of the first re sheet coated with glue, the assembly being fed on a hot table capacity <B> at </ B> a specific operating temperature to ensure bonding of the third sheet and the first sheet.

According to another feature, at least the second sheet or the third sheet is made of parchment paper.

In another feature, the sheets of non-greaseproof paper are preheated by drive rollers, before gluing operations, to a specific working temperature.

According to another feature, the sheets of non-greaseproof paper are preheated before they pass on a roll by preheating means.

According to another particularity, the step of sticking at least one outer sheet of parchment paper is performed <B> at </ B> a determined working temperature, higher <B> at </ B> an optimum working temperature ensuring optimal bonding of the sheets, in order to obtain sufficient bonding between the two sheets while allowing the subsequent removal of the latter without damaging it.

According to another feature, the working temperature for gluing the parchment paper sheet is of the order of <B> 10% </ B> higher <B> than </ B> the optimum bonding temperature.

According to another feature, for an optimum bonding temperature of <B> 150 ° C, </ B> the working temperature for bonding the parchment paper sheet is of the order of <B> 1 </ B> another particularity, the three sheets are made of non-preheated parchment paper.

According to another feature, the working speed is between <B> 30 </ B> and 40 meters per minute.

According to another feature, the pressure exerted by the corrugated rolls on the first sheet is between <B> 1 </ B> and 4.5 bars.

According to another feature, the pressure exerted by the fluted rollers on the first sheet is <B> 3, 5 </ B> bars.

According to another feature, the pressure exerted by the compression roller on the lower corrugated roller is 2 bars.

Other features and advantages of the present invention will appear more clearly when reading the following description with reference to the accompanying drawings in which: <B>: </ B> <B> << / B> Figure <B> 1 </ B> represents in perspective a support according to the invention <B>; </ B> <B> - </ B> Figure 2 represents front, partial and enlarged from illustrated support <B> to </ B> Figure <B> 1; </ B> <B> - </ B> Figure <B> 3 </ B> represents a schematic of a manufacturing process of a food support according to the invention.

The invention will now be described with reference to the figures. According to Figures <B> 1 </ B> and 2, the support according to the invention made <B> to </ B> from a plate <B> (1), for example flat and rectangular . dimensions plate <B> (1) </ B> are suitable for food products for which the support is intended. The plate comprises a central sheet having splines and two sheets <B> (3, </ B> 4) substantially planar, said external, each outer sheet being integral with one of the faces of the central sheet. sheets can be secured to each other by gluing with food glue <B> to starch base for example. outer sheets <B> (3, </ B> 4) are for example glued on the corrugation ridges of the flutes of the central sheet.

The three sheets are each made of paper having specific characteristics. At least one of the outer sheets is food grade. <B> A </ B> As an example, the paper or papers used to make each of the three carrier sheets are food grade. paper must indeed be able to <B> to </ B> be in contact with food without health risks. The papers also have resistance properties <B> to </ B> cooking, up to for example a temperature of <B> d </ B> e <B> 200'C. </ B> even, the papers used have properties of resistance to negative temperatures, for example of the order -30.degree. The papers have resistance capabilities <B> to </ B> hot water <B> to </ B> cold water.

The fluted central sheet makes it possible to stiffen the support. The flutes on the central sheet (2) give <B> to </ B> the rigidity plate sufficient to support a specific quantity of food product without bending or deforming. <B> A </ B> As an example, the central leaf presents <B> 300 to 600 </ B> fine flutes per linear meter. The depth of the grooves can be of the order of one millimeter. <B> A </ B> As an example, the total thickness of the support is between <B> 1 </ B> and 1.4 millimeters.

At least one of the outer sheets is, for example, made of parchment paper. This sheet of parchment paper defines the upper support surface, that on which the food product rests. According to a first embodiment, a first outer sheet is made of parchment paper and the second outer sheet and the central sheet are made of food paper, pure cellulose for example, treated to resist <B> to </ B> cooking < B> 200 ° C. </ B>

A food product may be disposed on the outer sheet of parchment paper constituting the upper surface of the support and be baked on a support. The outer sheet of parchment paper prevents the food product from adhering to the support. In the case of a support consisting of a simple plate, the food product, such as a pizza, can be marketed on its support after being wrapped with a protective plastic film for example. Optionally, the support properties allow to place the food product on its support in a deep freezer, right out of the oven. The presence of the grooves ensures sufficient rigidity to the support to allow its use for transport marketing product. Before consumption, the food product can be warmed directly on its support, after removing the plastic film if necessary. After use, the support can be discarded and possibly <B> (3, </ B> 4) sheets of non-greaseproof paper can be recycled.

Of course, the shape of the support may vary according to the nature of the food product. The support may consist of a plate formed of three sheets as described above, which is deformed and / or folded and / or cut to form, for example a container with lid or box having a bottom and a side wall or a rim surrounding the bottom.

<B> A </ B> As an example, the central sheet (2) has a grammage of between <B> 50 </ B> and <B> 600 </ B> g / M2 # the two sheets <B> (3, </ B> 4) each having a basis weight between <B> 50 </ B> and <B> 600 </ B> g / M2. These scales of grammage make it possible to form a rigid support, realizable <B> from the manufacturing process described hereinafter.

According to a variant embodiment, the support has the possibility of delaminating the outer sheet <B> (3) </ B> of parchment paper from the corrugated central sheet (2). The outer sheet of parchment paper is for example glued to the central sheet so that it can be manually removed without damaging said sheet of parchment paper. Thus, it will be possible to remove the central sheet and outer sheet <B> (3) </ B> of non-greaseproof food paper and to carry out the cooking or reheating of the food product disposed solely on an outer sheet of parchment paper. <B> A </ B> As an example, the entire support can be used to place the food product on the oven rack. While the sheet of parchment paper alone can be used to dispose the food product on a plate of a sheet of an oven. The consumer can thus choose the type of cooking or reheating desired, using the entire support or only the outer sheet of parchment paper.

According to a second embodiment, the three sheets forming the support are made of parchment paper.

The support according to the invention has many advantages. <B> It can be used on fully automated food production lines. The support is a cooking and disposable marketing support.

Figure <B> 3 </ B> represents a circuit diagram for manufacturing a support according to the invention. This schema is given <B> to </ B> as a non-limiting example. The support according to the invention can be obtained by means of a machine <B> (10) </ B> to </ b> to waving, comprising an upper roll <B> (5) </ B> and a lower roll <B> (6) </ B> forming a pair of fluted rollers. A first sheet (22) can be pinched and held between the upper roll (5) and the lower roll (6) to give a wavy shape and thus form the sheet central (2) fluted support as described above. Different types of corrugated sheets can be made according to the groove height of the lower rollers <B> (6) </ B> and higher and the spacing pitch of the splines. The <B> to </ B> waving <B> (10) </ B> machine has means for positioning the lower rollers <B> (6) </ B> upper <B> (5) </ B > relative <B> to </ B> the other in order to adjust the contact conditions between the fluted roller pair. The distance between the lower and upper roll is adapted according to the thickness of the food paper sheet (22).

A sizing mechanism <B> (11) </ B> allows the glue to be applied to the corrugation ridges of the first fluted sheet (22). glueing mechanism <B> (Il 1) </ B> includes a glue roll <B> (8), <B> positioned at </ B> near lower roll <B> (6), </ B> for transferring a determined amount of glue from a glue container (20) to this fluted sheet positioned on the bottom roll <B> (6). </ B> The amount of glue transferred can be adjusted to using a scraper roller <B> (9). </ B> A compression roller <B> (7) </ B> is positioned in abutment with the lower roller <B> (3) </ b> fluted . The first sheet (22) passes between the two fluted rollers <B> (5, 6) </ B> to be corrugated, and then arrives between the bottom roll <B> (6) </ B> and the compression roll <B> (7). </ B>

second sheet (44), intended to <B> to </ B> constitute a flat outer sheet <B> (3, </ B> 4) of the support, is applied to the compression roller <B> (7). / B> The rotating compression roller brings the second sheet (44) between the compression roller <B> (7) </ B> and the fluted bottom roller <B> (6). </ B> first and second sheet are pressed against each other between compression roller <B> (7) </ B> and the bottom fluted roller <B> (6). </ B> The glue presented on the corrugation ridges of the first sheet makes it possible to secure the two sheets. To allow bonding, the fluted rollers and compression roll are heated. Means are provided for adjusting the spacing and pressure conditions between the lower roll and the compression roll, depending on the thickness of the first and second sheets. first (22) and second (44) sheets are then fed, by a set of drive rollers (12, <B> 13, to </ B>) a sizing mechanism <B> (19), </ B> for applying glue to the corrugation ridges of the first sheet The drive rollers comprise, for example, two first rollers (12, including inner heating means and a second roller <B> ) </ B> The gluing mechanism includes a glue roll <B> (27), </ B> to transfer a specified amount of glue from a glue box <B> (28) </ B on the corrugated sheet a positioning roller (24) has a gluing roller facing the spline sheet against the gluing roll <B> (27). </ B> The first sheet (22) and the second sheet (44) is passed between the positioning roller (24) and the bonding roll <B> (27), the first sheet being disposed against the bonding roll. e transferred can be adjusted by means of a scraper roller <B> (26). </ B>

<B> A </ B> output gluing mechanism <B> (19), </ B> a third sheet <B> (33), <B> to </ B> constitute the second flat sheet of the support, applied by a smooth application roller <B> (25), </ B> against the corrugation ridges of the first sheet coated with glue. The third sheet may optionally be fed to the application roller <B> (25) </ B> via a drive roller having heating means. After the application of the third sheet against the first sheet, the assembly fed to one on a heated table (14), the third sheet being disposed against the heating table.

According to a first embodiment, the three sheets of paper are made of greaseproof food paper. The manufacturing process is performed <B> at </ B> a determined temperature called work to obtain optimal bonding between the sheets. For bonding between the first sheet and the second sheet, the corrugated rolls and the compression roll are brought to a temperature determined so that the first sheet, the second sheet, and the glue are carried. <B> at </ B> a specific working temperature at the time of their passage between the lower roller and the compression roller. The best bond between two sheets is obtained <B> at </ B> a so-called optimal temperature <B> at </ B> the temperature <B> at </ B> which the glue used has optimal bonding properties. rollers can be heated in known manner by steam. The pressure exerted by the compression roller is determined to allow optimal bonding. The pressure of the compression roll <B> (7) </ B> causing the second sheet to form the bottom sheet of the support, exerted on fluted sheet and the second sheet to allow their bonding order of 2 bar. Similarly, the heating table (14) is heated to a specific temperature, similar to the rollers, allowing to carry or maintain the first sheet and the glue <B> to a working temperature ensuring optimal bonding of the first (22) and third sheets. The glue rollers and the <B> to </ B> glue tray can also be heated to bring the glue <B> to the working temperature before it is applied to the ridges,. <B> A </ As an example, the rolls are brought to an optimum temperature of approximately 1500C. No water supply other than that provided by the adhesive is necessary during the support manufacturing process according to the invention. The pressure exerted by the fluted rollers on the first sheet (44) is between <B> 1 5 </ B> bar, for example <B> 3.5 </ B> bar. The working speed is between <B> 30 </ B> and 40 meters / minute. To glue the sheets of parchment paper, the drive rollers (12, <B> 13) </ B> of the first and second sheets, integral with each other, and the roll <B> (15) </ B> drive the third leaf are not heated. In the case where the three sheets consist of non-greaseproof food paper, drive rolls (12, <B> 13) </ B> of the first sheet and the second sheet, the drive roll <B > (15) </ B> of the third sheet may be heated, to ensure optimum bonding between the first (22) and third sheets <B> (33). </ B>

According to a second embodiment, the three sheets consist of a food paper, the second (44) or the third (B) (33) </ B> sheet consisting of a greaseproof food paper. The operating conditions (temperature and pressure) can be similar <B> to </ B> those used to form a carrier consisting of three sheets of parchment paper. <B> A </ B> as an example, third sheet <B > (33) </ B> consists of a greaseproof food paper, and different drive rollers (12, <B> 13, 15) </ B> are not heated.

To ensure that the sheets of non-greaseproof food paper are <B> at </ B> good temperature to obtain an optimal bonding, they can be preheated by means of preheating. The first sheet (22) may be preheated by means <B> (II 7) </ B> arranged upstream of the upper fluted roller <B> (5). </ B> In the case where the third sheet <B > (33) </ B> is constituted parchment paper, the second sheet (44) then constituted non-parous paper, may be preheated before its compression roll passage, by means of heating <B> (16). </ B > In the <B> or </ B> the second sheet (44) consists of a parchment paper, the third sheet <B> (33) </ B> then made of a non-parchment paper, can be preheated before it passes on the application roller <B> (1), </ B> by means of heating <B> (18). </ B>

According to a variant of this second embodiment, the manufacturing process makes it possible to obtain a support whose outer sheet of parchment paper can be delaminated. The operating conditions are adjusted to allow sufficient bonding of the parchment paper sheet on the first corrugated sheet while allowing separation of the two sheets manually without damaging the sheets. To achieve this, sticking takes place <B> to </ B> a working temperature that is <10% <B> higher than the temperature previously determined for a glue optimal. <B> A </ B> As an example, for a given glue having an optimum gluing temperature of <B> 150 ° C, </ B> the working temperature is approximately 1600C. Increasing the temperature changes the type of bonding by altering the bonding properties of the glue.

Other modifications within the scope of those skilled in the art are also within the spirit of the invention.

Claims (1)

<B> <U> CLAIMS </ U> </ B> </ B> </ B> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> </ b> Heat, including a first fluted central sheet (2) sandwiched between two outer sheets (B) (3, </ B> 4), the outer sheets being integral with the central sheet (2), at least one of the two outer sheets being made of food grade material, the flutes of the central sheet for stiffening the plate to form a shaped support for cooking the marketing of food products. Food carrier according to claim 1, characterized in that the food grade material is parchment paper. Food carrier according to Claim 1, or 2, characterized in that three sheets are made of a food grade material. Food carrier according to one of the preceding claims, characterized in that the central fluted sheet (2) has a basis weight between <B> 50 </ B> and 200 grams per square meter, and the sheets <B> (3, </ B> 4) have a basis weight between <B> 50 </ B> and <B> 600 </ B> grams per square meter. Food carrier according to one of the preceding claims, characterized in that the central sheet (2) has <B> 300 to </ B> fine flutes per linear meter, a height of the order of one millimeter. Food carrier according to one of the preceding claims, characterized in that the sheets (2, <B> 3, </ B> 4) withstand <B> to </ B> less than 2000C cooking temperatures and resist <B> at </ B> freezing temperatures. Food carrier according to one of the preceding claims, characterized in that the three sheets consist of parchment paper. Food carrier according to one of the preceding claims, characterized in that one of the outer sheets of parchment paper can be removed manually from the corrugated central sheet (2). <B> 9. </ B> Food support according to one of the preceding claims, characterized in that the sheets (2, <B> 3, </ B> 4) are secured by food glue <B> to </ B> starch base. <B> 10. </ B> A method of manufacturing a food support, characterized in that it comprises obtaining a first fluted sheet (22), gluing a second sheet (44) on the ridges for corrugating a first face of the fluted sheet, and for bonding a third sheet on corrugation ridges of the second face of the first sheet (22), these operations being obtained by a set of means comprising rollers or fluted <B> (10), </ B> the three sheets being food grade paper sheets, the collages being performed <B> at </ B> a working temperature determined by food glue. <B> 11. </ B> A method of manufacturing a food carrier according to claim 10, characterized in that it comprises <B>: </ B> <B> - </ B> obtaining a fluted sheet by passing a first (22) sheet between a pair of fluted rolls, comprising an upper roll <B> (5) </ B> and a lower roll <B> (6) ) Heated, <B> - </ B> the application of food glue on the corrugation ridges of the fluting of the first sheet (22) positioned on the lower fluted roller <B> (6) </ B> by a gluing mechanism (20), <B> - </ B> pressing and gluing a second sheet (44), brought by a smooth compression roller <B> (7) </ B > heated against the ridges of the corrugations of the grooves of the first sheet, the sheets and the glue being brought <B> to </ B> a working temperature determined by means of the heated rollers, <B> - </ B> the application of food glue on the corrugation ridges of the cannelur of the first sheet (22) <B>, </ B> by a gluing mechanism <B> (It </ B> 9) ,, <B> - </ B> the application of a third sheet fed by a smooth <B> (25) </ B> application roller to the crests of the first sheet coated with glue, the assembly being brought onto a heated table (14) carried <B> to </ B> > a determined working temperature <B>, </ B> to ensure the bonding of the third sheet of the first sheet. 2. Method according to claim <B> 10 </ B> or <B> 11, </ B> characterized in that less second sheet or third sheet is made of parchment paper. <B> 3. </ B> A method of manufacturing a food carrier according to claim 12, characterized in that the sheets of non-greaseproof paper are preheated by drive rollers, before bonding operations, at a working temperature determined. A method of manufacturing a food carrier according to claim 12 or <B> 13, </ B> characterized in that the sheets of non-greaseproof paper are preheated before they pass on a roll by preheating means <B> (16, 17, 18). </ B> <B> 5. </ B> A method of manufacturing a food carrier according to one of claims 12 <B> to </ B> 14, characterized in that the bonding step of at least one outer sheet of parchment paper is produced at a given working temperature, greater than an optimum working temperature ensuring optimal bonding of the sheets, in order to obtain an optimum sufficient bonding between two sheets while allowing the subsequent removal of the latter without damaging it. <B> 6. </ B> A method of manufacturing a food carrier according to claim <B> 15, </ B> characterized in that the working temperature for sticking the sheet of parchment paper is of the order of < B> 10% <B> superior <B> at </ B> optimal bonding temperature. A method of manufacturing a food carrier according to Claim <B> 16, </ B> characterized in that for an optimum bonding temperature of <B> 150 ° C, </ B> the working temperature for bonding the leaf parchment paper is of the order of 160 '> C. A method of manufacturing a food carrier according to one of claims 10 to 17, characterized in that the three sheets (22, 33, 44) are made of sheet of non-preheated parchment paper. <B> 1 </ B> A method of manufacturing a food carrier according to one of claims <B> 10 to 18, </ B> characterized in that the working speed of between <B> 30 </ B> and 40 meters per minute. A method of manufacturing a food carrier according to one of claims 10 to 19, characterized in that the pressure exerted by fluted rolls <B> (5, 6) </ B> on the first sheet is between <B> 1 </ B> and 4 bars. A method of manufacturing a food carrier according to claim 20, characterized in that the pressure exerted by the fluted rolls <B> 6) </ B> on the first sheet is <B> 3, 5 </ B> bars. A method of manufacturing a food carrier according to one of claims 10 to 21, characterized in that the pressure exerted by the compression roll on the fluted roller <B> (6) </ B> is 2 bars.