JP2002068117A - Cooking bread packaging method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method by which anyone can easily obtain a package of a cooking pan which has a moderate tension and does not peel off a sealing portion during handling. SOLUTION: The cooking pan is sealed and covered with a stretch shrink film, and then the stretch shrink film is thermally contracted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hot dog in which sausage is sandwiched in the middle part of an elongated bread, a fried noodle, ham and salad, a croquette or a cutlet in a middle part of the elongated bread like a hot dog. (Hereinafter, these breads are referred to as cooked breads). More specifically, the present invention relates to a method used by a bakery to package cooked bread processed by a bakery.

[0002]

2. Description of the Related Art Conventionally, cooking bread has been packaged manually using a stretch film. That is, a stretch film is wound around a cooking pan, and the opening is bent to the lower side of the cooking pan to adhere to itself, so-called stretch packaging. However, if a stretch film is strongly wrapped around a cooking pan in order to obtain a tight packaging, the cooking pan is crushed or deformed, and skill is required to obtain a good packaging. Was. or,
In a stretch-wrapped cooking pan, the adhered portion may be peeled off or rolled up during handling, and contents such as mayonnaise, ketchup, or sauce may protrude and stain other products. Further, there is a problem from the viewpoint of falsification prevention.

[0003] As a stretch packaging film for a cooking pan, a stretch film made of a polyvinyl chloride resin having a strong self-adhesive force and being soft, transparent and glossy has been used. However, stretch films made of polyvinyl chloride resin generate dioxin when incinerated, causing environmental pollution, and the substances used as plasticizers are suspected of being environmental hormone substances. Therefore, recently, a stretch film made of a polyolefin resin has been used. However, a stretch film made of a polyolefin-based resin has poor self-adhesiveness, and has often been peeled off from an adhered portion or turned up.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a method for easily obtaining a cooking pan package having an appropriate tension and without peeling or rolling up of a sealed portion during handling. It is intended to provide. Moreover,
An object of the present invention is to provide a method for packaging a cooking pan that can be packaged using a stretch shrink film made of a polyolefin resin that does not generate dioxin during incineration and does not use a plasticizer suspected of being an endocrine disrupter. It is.

[0005]

The present invention has the following means for solving the above-mentioned problems. That is, after the cooking pan is hermetically wrapped with the stretch shrink film, the stretch shrink film is thermally contracted. Preferably,
The sealed wrap of the cooking pan is inserted between the upper and lower stretch shrink films, and the periphery of the cooking pan is heat-sealed and / or bent under the cooking pan to be heat-sealed. Also, preferably, the hermetically sealed envelope of the cooking pan is wound around the cooking pan with a stretch shrink film wound around the cooking pan, and the overlapping portions of both sides of the stretch shrink film are positioned below the cooking pan. Is bent under the cooking pan and heat-sealed. In addition, the heat fusion is performed by pressing against a hot plate with a flexible pressing roll or belt. More preferably, the flexible holding roll or belt does not press against the center of the cooking pan. Further, the stretch shrink film is made of a polyolefin resin.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The stretch shrink film used for packaging the cooking pan of the present invention is not particularly limited. However, in consideration of incineration at the time of disposal and migration of a plasticizer, a polyolefin resin is used. Is preferred. Stretch shrink film made of polyolefin resin, like stretch film made of polyvinyl chloride resin, does not generate dioxin even when incinerated, and furthermore, since a plasticizer having suspicion of an environmental hormone substance is not used, No such plasticizer is transferred to the cooking pan.

[0007] The stretch shrink film is
A film having the characteristics of a stretch film and the characteristics of a shrink film, specifically, a film having self-adhesiveness and heat shrinkability. The self-adhesiveness can be imparted by selecting a resin composition to be the surface of the film, mixing additives, and the like. The heat shrinkability can be imparted by a stretching treatment.

As a specific stretch shrink film used in the present invention, a film having the following film structure is preferably used. For example, a three-layer structure in which both surface layers are an ethylene-vinyl acetate copolymer and a core layer made of a polypropylene resin, a four-layer structure in which an intermediate layer is provided between the surface layer and the core layer, or a five-layer structure Stretch shrink films are exemplified. Further, both surface layers are a mixture of a linear very low density polyethylene resin and a linear low density polyethylene resin, and the core layer is made of a linear low density polyethylene resin.
Layer configuration or 4 provided with an intermediate layer between the surface layer and the core layer
Stretch shrink films having a layer structure or a five-layer structure are exemplified.

The stretch shrink film of the present invention is preferably a film to which an additive such as an antifogging agent is appropriately added in order to impart self-adhesiveness and antifogging property to the surface layer. Furthermore, the stretch shrink film of the present invention has been subjected to a stretching treatment to impart heat shrinkage. Moreover, it is preferable that the heat shrinkage stress is small in order to package the cooking pan. If the cooking pan is wrapped with a stretch shrink film having a large heat shrinkage stress, the cooking pan may be crushed or deformed when heat shrunk, which is not preferable.

[0010] In the case of conventional heat shrink wrapping with a shrink film, it is necessary to provide an exhaust hole for discharging air or the like inside the envelope when heat shrinking. Generally, an exhaust hole is provided in the shrink film. However, in the case of heat shrink wrapping using a stretch shrink film, since air or the like is wrapped in a state where air or the like does not remain as much as possible in the wrapping body, there is no need to discharge air or the like from the wrapping body during heat shrinkage. That is, the stretch shrink film is not provided with an exhaust hole, and is covered in a sealed state.

[0011] In the packaging method for a cooking pan of the present invention, the cooking pan is hermetically wrapped with a stretch shrink film, and then the stretch shrink film is thermally contracted. It is preferable that the hermetically sealed envelope of the cooking pan has as little room as possible for the stretch shrink film around the cooking pan and is in a state close to a tension state. When the cooking pan is sealed and wrapped, there is room in the stretch shrink film around the cooking pan, and if the wrapping body is in a loose state, a package having good tightness even when heat shrunk is formed. I can't get it. However, when a wrapping body having a tension state like a conventional stretch wrapping body is used, not only is workability deteriorated, but also when cooked by heat, the cooking pan is crushed or the shape is deformed, which is not preferable. .

[0012] The method of reducing the margin of the stretch shrink film around the cooking pan as much as possible and sealingly wrapping it in a state close to tension is not particularly limited. Preferably, it is covered. That is, the cooking pan is inserted between the upper and lower stretch shrink films, the periphery of the cooking pan is heat-sealed, and / or the stretch shrink film around the cooking pan is bent to the lower side of the cooking pan to be closely adhered. For example, a cooking pan is inserted between two upper and lower stretch shrink films, and the front and back of a position near the cooking pan are heat-sealed by a fusing heat sealing method. The shrink film is bent under the cooking pan and pressed against a hot plate to be heat-sealed.

As another method, a stretch shrink film is wrapped around a cooking pan in a tubular shape, and the overlapped portions of both sides of the stretch shrink film are positioned below the cooking pan. The film is folded under the cooking pan and heat-sealed. For example, a stretch shrink film is wound around the length of the cooking pan to form a tubular body,
The overlapping portion of both sides of the stretch shrink film is located below the cooking pan. Then, at the opening portions at both ends in the longitudinal direction of the cooking pan, the stretch shrink film at this position is bent to the lower side of the cooking pan, and pressed against a hot plate to perform heat fusion.

[0014] The heat fusion of the two sides of the stretched shrink film stacked under the cooking pan or the heat fusion of the stretch shrink film bent below the cooking pan is performed manually. It is also possible to press it against a board, etc., but a hot plate and a flexible holding roll,
Alternatively, it is preferable to perform the heating between the hot platen and the flexible holding belt. For example, a cooking pan wrapped with a stretch shrink film is placed on a rotating Teflon (registered trademark) sheet belt, and the lower side of the cooking pan is pressed against a hot plate provided below the belt. It is preferable that the sponge-like rotating roll, the sponge-like sheet belt, or the caterpillar portion is pressed by a sponge-like caterpillar belt or the like from above the cooking pan so as to perform heat fusion.

More preferably, a flexible pressing roll or a flexible belt having a structure in which a central portion of the cooking pan is not pressed is used. For example, in the case of a sponge-shaped holding roll, it is preferable that both ends of the roll have a large sponge-shaped roll diameter, and that the sponge-shaped roll diameter is small at a substantially central portion of the roll located at a substantially central portion of the cooking pan. . In the case of a sponge-like sheet belt, it is preferable that both ends are thick and the center part is thin. Further, when the caterpillar portion is a sponge-shaped caterpillar belt, it is preferable that both ends of the caterpillar have a high height and a center portion has a low height. When almost the center of the cooking pan is pressed,
The contents sandwiched between the breads, in particular, mayonnaise, ketchup, or sauce, adhere to the stretch shrink film, and the resulting package becomes unsightly.

The cooking pan wrapper sealed with the stretch shrink film causes the stretch shrink film around the cooking pan to thermally shrink, thereby giving the package an appropriate degree of tightness. The method of heat shrinking is not particularly limited, but the method of passing through a heat shrink tunnel is simple and a uniform package can be obtained. That is,
Depending on the heat shrinkage and heat shrinkage stress of the stretch shrink film to be used, or the state of the cooking pan being sealed and wrapped, and the shape and softness of the cooking pan itself, appropriately select the tunnel temperature, tunnel passage time, and the like. Accordingly, it is possible to obtain a uniform package having appropriate tension without crushing the cooking pan or deforming the shape.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The packaging method of the present invention will be specifically described below with reference to the drawings. It should be noted that the present invention is not limited only to the contents described in the embodiments. FIG. 1 is a schematic explanatory view showing the packaging step of the present invention. Both outer layers are made of a resin composition obtained by adding an antifogging agent to an ethylene-vinyl acetate copolymer, and the core layer is made of a stretch shrink film (thickness: 50% by weight or less) of an ethylene-propylene copolymer. 12 μm)
, The elongated cooking pan is manually turned into the wrapping body (1). Then, the wrapping body is placed on the belt such that the lower side of the cooking pan is in contact with the Teflon belt (2), and the longitudinal direction of the cooking pan is perpendicular to the flow direction of the belt. The cooking pan wrapper (1) has a tubular body in which both edges of the stretch shrink film are overlapped under the cooking pan to form a tubular body. However, it is bent under the cooking pan.

The cooking pan wrapper (1) placed on the belt (2) is rotated by the belt to rotate the hot platen (3) attached below the belt and the sponge-like roll (4). ) Carried during. Although not shown, the sponge-shaped roll has a large diameter at both ends and a small diameter at the center. Then, the cooking pan wrapper (1) carried between the hot platen (3) and the sponge-shaped roll (4) is pressed against the hot platen by the pressing force of the sponge-shaped roll. Then, the overlapped portion of the both sides of the stretch shrink film and the stretch shrink film of the open end portions bent at the lower side of the cooking pan are heat-sealed and sealed. In addition, the temperature of the hot platen was about 160 ° C. on the upper side of the belt, and the hot plate passage time was about 2 seconds.

The sealed envelope passing between the hot platen (3) and the sponge-shaped roll (4) is subjected to a heat shrink tunnel (5).
After passing through the inside, the stretch shrink film undergoes heat shrinkage, causing tightness in the sealed wrapping body to form a cooking pan package. After passing through the heat shrink tunnel, a cooling step (not shown) may be passed if necessary.
The temperature in the heat shrink tunnel was about 115 ° C., and the tunnel passage time was about 3 seconds.

[0020]

According to the method for packaging a cooking pan of the present invention, unlike the stretch packaging, it is not necessary to impart a tightness to the film at the stage of wrapping, so that the cooking pan is not crushed or deformed. . In addition, by appropriately selecting the amount of room for the stretch shrink film and the heat shrinking conditions at the time of wrapping, even an unskilled worker can easily and continuously obtain a package having appropriate tension. . Furthermore, since the package of the cooking pan obtained by the method of the present invention is sealed by heat sealing or heat fusion,
The contents such as mayonnaise, ketchup, and sauce do not leak out of the package to contaminate other commodities, and have an effect of preventing tampering.

[Brief description of the drawings]

 FIG. 1 is a schematic diagram illustrating the packaging step of the present invention.

[Explanation of symbols]

 1. 1. Cooking pan wrapper Belt 3. Hot plate 4. 4. Sponge-shaped roll Heat shrink tunnel

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E067 AA11 AB01 BA31A BB15A BB16A CA01 CA02 CA24 EA06 EE48 FA01 FB01 FB06 FC01

Claims (6)

[Claims] 1. A method for packaging a cooking pan, comprising sealing the cooking pan with a stretch shrink film and heat shrinking the stretch shrink film. 2. The hermetic envelope of the cooking pan inserts the cooking pan between the upper and lower stretch shrink films, heat seals the periphery of the cooking pan, and / or folds the cooking pan below the cooking pan for heat fusion. The method for packaging a cooking pan according to claim 1, wherein: 3. A sealed pan of the cooking pan, wherein the stretch shrink film is wrapped around the cooking pan in a cylindrical shape, and both edge overlapping portions of the stretch shrink film are positioned below the cooking pan, and both ends are opened. 2. The heat-sealing method according to claim 1, wherein the heat-sealing is performed by bending the heat-sealing pan under the cooking pan.
A packaging method for the described cooking pan. 4. The method for packaging a cooking pan according to claim 2, wherein the heat fusion is performed by pressing the hot pan against a hot plate with a flexible pressing roll or belt. 5. The flexible holding roll or belt does not press against the center of the cooking pan.
A packaging method for the described cooking pan. 6. The method according to claim 1, wherein the stretch shrink film is made of a polyolefin resin.