JP2006166817A - Method of manufacturing sheet body for molded cooked rice food packaging and molded cooked rice food with packaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate inconvenience in manufacturing due to bending of a sheet body in a sheet body used for molded cooked rice food in which a sheet material of a different material is laminated on a plastic film.
SOLUTION: A front side film 10 provided with a dividing means for laminating different sheet materials P on the surface and dividing into two in the lateral direction, and a pair provided with overlapping portions of film pieces at opposite side ends. Each of the backside films made of the film pieces 13 and 14 is supplied from a supply roll wound up in a long state, and heat-sealed by superimposing to a required dimension so as to constitute a bag portion containing the sheet-like food N inside. In the manufacturing method of the sheet body 1 comprising the step of fusing by the above, and separating to the required dimensions, when supplying the front side film when overlapping with the back side film, the front side film is placed with the sheet material side of the laminated different materials inside. By winding it around the supply roll 20, the bending in the direction opposite to the bending direction of the sheet body that occurs at the time of fusing by heat sealing is preliminarily determined. Giving to Rum.
[Selection] Figure 1

Description

  The present invention relates to a sheet body for packaging shaped cooked rice food such as rice balls.

  As a packaging material made of a plastic film for packaging shaped cooked rice food such as rice balls, a rectangular front side film 60 having a dividing means 53 for dividing into two in the short direction as shown in FIG. Covering the front film with a pair of film pieces 61 and 62 divided into two and overlapping the back side film provided with overlapping portions of the film pieces at the position located in the dividing means of the front side film, overlapping portions of the film pieces of the back side film A sheet body 50 provided with a bag portion for containing a sheet-like food N such as seaweed by joining both sides of the front side film and the back side film with heat sealing means is widely used (known) As an example, Patent Document 1).

  The sheet body is generally used when a triangular rice ball is accommodated in a triangular packaging body along its outer shape, and the bottom surface of the rice ball is positioned near the center of the front and rear of the sheet body. Cover the back of the rice ball with the rear half of the sheet, then cover the front with the front half, fold the triangles left and right of the sheet over the sheet that covers the rice ball, and stack it on the sheet. Package rice balls by fixing them.

  Also, it may be used when a triangular rice ball is housed in a rectangular package, in which case the sheet body is placed in a U-shape with both sides on the short side facing each other. In addition, the both ends on the short side of the sheet body facing each other in the opening are formed by folding the both ends of the long side to the side wall side of the formed cooked rice food and joining them together to form a rectangular parallelepiped. Package rice balls by fixing them.

  In this case, it is indispensable that the package is provided with a decorative surface composed of a pattern and a display. However, it has been common to apply a pattern or a display to the sheet body by printing.

On the other hand, a technique for enhancing barrier properties, design properties, and texture by laminating sheets of different materials such as paper, nonwoven fabric, and metal foil on a plastic film is well known. Therefore, it has been proposed to apply this well-known technique to the packaging film of rice balls to attach a pattern or display to the sheet material made of a different material as a decorative surface (Patent Document 2 as a known example).
CD-ROM for Japanese Patent Application No. 3-35063 (Japanese Utility Model Application No. 6-8264) JP2003-291986

  However, when adopting a sheet body as shown in FIG. 10 provided with a bag portion for containing sheet-like food inside by joining both sides of the front side film and the back side film by heat sealing means, If different material sheet materials are laminated on the film, the sheet body will bend and curl in the opposite direction to the different material sheet material due to the shrinkage of the film part due to heating during heat sealing, which will adversely affect the packaging operation by the automatic packaging machine. Gave rise to problems.

  In the above case, it can be conceived that a stretched film is used as the film and tension control is performed during lamination, but in practice, the control of the tension control is difficult.

  The present invention was created for the purpose of providing a method of manufacturing a sheet body that realizes a sheet body that solves the above-mentioned problems. The sheet material of different materials is laminated on the surface and divided into two in the short direction. A front side film provided with a dividing means for cutting and a back side film consisting of a pair of film pieces provided with overlapping portions of film pieces at opposite side ends, respectively, supplied from a supply roll wound in a long state. In the method of manufacturing a sheet body comprising a step of superposing the required dimensions so as to constitute a bag portion containing the sheet-like food inside, fusing by heat sealing, and then separating to the required dimensions, When supplying the front side film, the front side film is wound around the supply roll with the sheet material side of the laminated different materials inside, and the Characterized by applying in advance the front side film opposite direction deflection of the deflection direction of the sheet body caused during fusion by Toshiru.

  2. Description of the Related Art Conventionally, in a sheet body in which different-surface sheet materials serving as decorative surfaces are laminated on the surface, when winding a front film on a supply roll, the different-material sheet material side is wound outward. This is based on the reason for making the wound decorative surface visible, and there was no idea of winding the front film with the sheet material side of the different material inside.

  When the inventor of the present application turns the sheet material side of the different material inside and winds the front side film around the supply roll, the sheet material of the different material is bent and restored along the outer shape of the roll, and the sheet material side of the different material is not restored. The present invention was conceived based on the phenomenon that the front film was bent and curled in the direction of the sheet material of the different material when trying to superimpose the front film with the back film. That is, since the bending of the sheet body due to the shrinkage of the film portion due to the heating at the time of heat sealing acts in the opposite direction to the sheet material of a different material, the bending in the direction opposite to the bending direction is previously applied to the front film by the above process. Then, as a result of the cancellation of the deflections, the deflection of the sheet body, which has been a problem of the prior art, is eliminated.

  Therefore, according to the present invention, it is possible to eliminate the problems of the prior art by simply changing the winding position of the front film with respect to the supply roll without changing the material of the film or making a major change to the production line. This is possible and does not increase costs.

    2 and 3 are views showing the configuration of the sheet body 1 on which the present invention is based. The sheet body 1 has a structure in which a plastic front film 10 and back films 13 and 14 are polymerized so as to form a bag portion for containing a sheet-like food. The front-side film 10 has a rectangular shape and has a dividing means by strip-shaped cutting for dividing the film into two in the short direction. In this embodiment, two narrow cut tapes T1 and T2 fixed to the front film 10 are used as the dividing means. However, as long as the front film 1 can be stripped by being pulled up, Of course, the dividing means is not limited to a cut tape. In addition, here, in order to facilitate tearing at the start of lifting of the dividing means (cut tape), a pair of cuts 6A and 6A are provided on the left and right of the starting position of the dividing means at one end of the front film.

  The back film is a film that contacts the rice ball R at the time of packaging, and is composed of a pair of film pieces 13 and 14 that are divided into two in the short direction to cover the front film 10, and these film pieces are means for dividing the front film. An overlapping portion is formed that partially overlaps at a position located in the area.

  The front side film 10 and the back side films 13 and 14 are bag parts for accommodating the sheet-like food N inside by providing the heat seal part S1 on the periphery except for the overlapping part of the film pieces of the back side film. Configure. In this embodiment, nori is assumed as the sheet-like food N, but the sheet-like food is not limited to nori.

  Reference symbol P in the figure is a sheet material of a different material laminated on the surface of the front film 10, and is laminated over the entire area of the front film 10 here. This sheet material P is laminated in order to enhance the design and texture of the packaging material, and paper, non-woven fabric, metal foil and the like are assumed.

  FIG. 1 is a configuration diagram of a line L for manufacturing the above sheet body 1. The front film 10 is wound on the supply roll 20, the back film 13 is wound on the supply roll 21, and the back film 14 is wound on the supply roll 22. The sheet is fed from these rolls onto the line and is also conveyed on the line. The food N is superposed in a state where the food N is accommodated, the required portions are fused and joined by the heat sealers 23 and 24, and separated into individual packaging units by the cutter 25. In the above process, the front film 10 is wound around the supply roll 20 with the laminated sheet material P side inside (roll side), and this constitutes a characteristic part of the present invention.

  4 and 5 are diagrams showing a process of packaging rice balls by the sheet body 1 manufactured by the above process. First, the bottom of the triangular rice ball R is positioned near the center of the front and rear of the package containing the sheet-shaped food S in the bag, and the back of the rice ball is covered with the rear half of the package (see FIG. 4). Next, the front half of the package M covers the front of the rice ball R. In this case, the rice ball is triangular, but the package is rectangular, so the corners in front of the package are on the left and right of the package. The partially cut-out triangular portions S and S remain. Therefore, the triangular portions S and S are folded and overlapped on the package covering the rice ball R, and further fixed to the sheet by appropriate means, thereby fixing the packaging state (see FIG. 5).

  FIG. 6 is a diagram showing examples of different configurations of the sheet body. This sheet body 2 has a structure in which a plastic front film 10 and back films 13 and 14 are polymerized so as to form a bag portion for containing sheet-like foods therein. The front-side film 10 has a rectangular shape and has a dividing means by strip-shaped cutting for dividing the film into two in the short direction. In this embodiment, two narrow cut tapes T1 and T2 fixed to the front film 10 are used as the dividing means. However, as long as the front film 1 can be stripped by being pulled up, Of course, the dividing means is not limited to a cut tape. In addition, here, in order to facilitate tearing at the start of lifting of the dividing means (cut tape), a pair of cuts 6A and 6A are provided on the left and right of the starting position of the dividing means at one end of the front film.

  The back film is a film that contacts the rice ball R at the time of packaging, and is composed of a pair of film pieces 13 and 14 that are divided into two in the short direction to cover the front film 10, and these film pieces are means for dividing the front film. An overlapping portion is formed that partially overlaps at a position located in the area.

  The front side film 10 and the back side films 13 and 14 are bag parts for accommodating the sheet-like food N inside by providing the heat seal part S1 on the periphery except for the overlapping part of the film pieces of the back side film. Configure. In this embodiment, nori is assumed as the sheet-like food N, but the sheet-like food is not limited to nori.

  Reference sign P <b> 1 in the figure is a sheet material of a different material laminated on the surface of the front film 10. This sheet material P is laminated in order to enhance the design and texture of the packaging material, and paper, non-woven fabric, metal foil and the like are assumed. The sheet material P1 is laminated not on the entire area of the front film 10 but on the area inside the areas F and F where the heat sealing means exists.

  FIG. 7 to FIG. 9 are diagrams showing an example of the manufacturing process of the packaged cooked cooked rice food produced by the above-described process. Here, a triangular rice ball is illustrated as the molded cooked rice food. In the figure, reference numeral 2 denotes a sheet body, and the regions constituting the front portion A, the bottom collar portion B, and the rear portion C of the sheet body with the folds 2B and 2B as a boundary in a state where the rice ball R is in contact with the sheet rice R Then, the regions 3 and 3 constituting the side collar portions D and D of the sheet body are folded to the rice ball side with the creases 2A and 2A as a boundary. At that time, the regions 3 and 3 constituting the side flange portions D and D of the sheet body and the region 4 sandwiched between the folds 2A are folded at the folds 2B, 2B and 2C and 2C, and the regions 3 and 3 Polymerized on the back side.

  The sheet body which consists of a rectangular parallelepiped which opened upwards by the above process is obtained, and the area | regions 3 and 3 which comprise the side collar parts D and D and the area | region 4 which is folded and superposed | polymerized on the back surface are simultaneous in heat seal location S2. In addition to heat sealing, the regions 3 and 3 are also heat sealed (see FIG. 8).

  Next, while folding the side flanges D and D inward so that the crease 5A protrudes inward of the sheet, the front part A and the rear part C are overlapped at the opening (see FIG. 9) and further closed ( The series of packaging is complete.

The line block diagram which shows the manufacturing method of the sheet | seat body of this invention. The disassembled perspective view of a sheet | seat body. FIG. The perspective view which shows the manufacturing process of the shaping | molding cooked rice food using a sheet | seat body. The perspective view which shows a manufacturing process same as the above. The disassembled perspective view of the sheet | seat body of a different Example. . The perspective view which shows the manufacturing process of the shaping | molding cooked rice food using a sheet | seat body. The perspective view which shows a manufacturing process same as the above. . The perspective view which shows a manufacturing process same as the above. . The disassembled perspective view of the sheet | seat body of the shaping | molding cooked rice food of a prior art.

Explanation of symbols

P Sheet material of different material R Molded cooked food N Sheet food S1 Heat seal part T1, T2 Cutting means 1 Sheet body 10 Front side film 13 Back side film 14 Back side film 20 (front side film) supply roll

Claims (3)

  The back side which consists of a pair of film pieces which provided the front side film which provided the parting means for dividing the sheet material of a different material on the surface, and to divide into two in the transverse direction, and the overlapping part of the film pieces in the opposite side end Each film is supplied from a supply roll wound up in a long state, overlapped with the required dimensions so as to form a bag part containing sheet-like food inside, and fused by heat sealing, and then cut into the required dimensions In the manufacturing method of the sheet body comprising the steps, when supplying the front side film upon superimposing with the back side film, the front side film is wound around the supply roll with the sheet material side of the laminated different materials inside, and heat is generated. Formed rice characterized by preliminarily imparting to the front film a bending in the direction opposite to the bending direction of the sheet body that occurs during fusion by sealing. Method of manufacturing a food packaging sheet. The sheet body manufactured by the manufacturing method of (1) below and a triangular shaped cooked rice food packaged in the sheet body, the bottom of the molded rice food product is positioned near the center of the front and back of the sheet body and the rear half of the sheet body Cover the back of the shaped cooked rice food with the front half, cover the front with the front half, fold the triangles left and right of the sheet body over the sheet body covering the back of the shaped cooked rice food, Molded cooked rice food characterized by being fixed to a package.
(1) A pair of film pieces provided with a front film provided with a dividing means for laminating different sheet materials on the surface and divided into two in the short direction, and an overlapping portion of the film pieces at opposite side edges Are supplied from supply rolls wound up in a long state, and overlapped with the required dimensions so as to form a bag portion containing sheet-like food inside, and then fused by heat sealing, then required In the method of manufacturing a sheet body comprising a step of separating into dimensions, when supplying the front side film when overlapping with the back side film, the front side film is wound around a supply roll with the sheet material side of the laminated different materials inside. By this, the front side film is preliminarily imparted with a bending in the direction opposite to the bending direction of the sheet body that occurs during fusion by heat sealing. The manufacturing method of the sheet | seat body for cooked rice food packaging. It consists of a sheet body manufactured by the manufacturing method of (1) below and a triangular shaped cooked rice food packaged on the sheet body, with the molded rice food placed on the sheet body so that both ends on the short side face each other. Bend in the shape of a U-shape, fold both ends of the long side to the side wall side of the shaped cooked rice food, and join to each other to form a bag into a rectangular parallelepiped that opens upward, and both ends on the short side of the sheet body facing each other at the opening A packaged cooked rice food characterized by fixing sides.
(1) A pair of films in which a non-plastic sheet material is laminated on the surface and provided with a dividing means for dividing the sheet into two in the lateral direction, and overlapping portions of film pieces are provided at opposing side edges. After supplying from the supply rolls each wound in a long state with the back side film consisting of a piece, after fusing by heat sealing to overlap the required dimensions so as to constitute a bag part containing the sheet-like food inside, In the method of manufacturing a sheet body comprising a step of separating into the required dimensions, when supplying the front side film when overlapping with the back side film, the front side film is wound around a supply roll with the laminated non-plastic sheet material side facing outside. By placing the sheet on the front side film, a bending in the direction opposite to the bending direction of the sheet body generated at the time of fusion by heat sealing is applied in advance. The manufacturing method of the sheet | seat body for shaping | molding cooked rice food packaging characterized by the above-mentioned.

Images