JP2002053181A - Package for heating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a package for heating comprising a heat-resistant flat bag including foodstuffs without increasing a cost so as to allow the foodstuffs to be cooked by heat by microwave irradiation even if a heat-resistant bag having a flat form unlike a conventional self-supporting form is used. SOLUTION: A package for foodstuffs to be heated comprising a heat- resistant flag bag B which hermetically receives the foodstuffs to be heated by irradiation of microwaves and a flat outer packaging box A which receives and packages the bag. The package includes a lid A1 which can be separated by cutting a cutout for unsealing a box provided along an outer periphery of the box on an upper or a lower part of the box. Notches 21 and 21 formed to be inclined in a predetermined angle in the direction of a lateral side plate of the box on a front plate 1 and a back plate 3 of the lid which are opposite to each other in the thickness direction of the box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-resistant flat bag in which articles such as retort food heated by microwave irradiation are sealed and stored, and a flat outer box in which the bags are stored and packaged. The present invention relates to a configured heating package.

[0002]

2. Description of the Related Art Conventionally, foods such as retort foods which are eaten by heating are stored in a heat-resistant flat bag, and are put into hot water and heated in this state. I was The flat bag (referred to as a pouch) has a flat shape that is not a self-supporting type,
There is a form in which a gusset is provided at the bottom so that it can stand alone.

[0003] By the way, as a method of heating food,
The use of microwave ovens is increasing. Therefore, the food in the above-mentioned retort pouch-type food, in particular, the food contained in a heat-resistant flat-shaped bag body which can be self-supported,
To prevent the storage bag from exploding due to the thermal expansion of the contents and to block microwaves, open the top of the bag to allow food juice and seasoning liquid to flow out of the bag. This bag body is made to stand on its own so that it does not spill out, and can be heated in a microwave oven while still in the bag.

[0004]

However, among the above-mentioned flat-type bags, those that are not self-supporting cannot be heated in this state, and the food stored in the bag cannot be heated. It had to be transferred to another container and heated. Furthermore, adopting a self-contained bag requires a change in the production line and increases the material cost.

Accordingly, an object of the present invention is to make it possible to cook food by microwave irradiation while using a heat-resistant bag that has a flat shape that is not a conventional self-standing type, thereby reducing costs. It is an object of the present invention to provide a heatable package in which an article such as food is placed in a heat-resistant flat bag without being raised.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a heat-resistant flat bag body in which articles such as food to be heated by microwave irradiation are housed in a sealed manner.
In a heating package constituted by a flat outer box housing the bag, the upper or lower part of the flat outer box is cut off by a cutting portion for opening the box provided on the outer periphery of the box. The flat outer box body is provided with a detachable lid, and is formed on the front back plate of the lid section facing the thickness direction of the flat outer box body at a predetermined angle in the left and right side plate directions of the flat outer box body. A heating package body provided with a notch.

[0007]

According to the present invention, a non-self-supporting flat bag containing food for heating such as retort food is tilted and supported by the packaging box for the bag, and is raised and held in an inclined posture. By heating while tilting in one direction, it is possible to perform more stable heating than holding and heating in a vertical position, and also to the food inside the bag like a self-standing bag. The microwaves reach well and become heated.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a heating package according to the present invention will be described in detail.

FIG. 1 is a plan view showing an example of a blank sheet of a flat outer case A for storing and packaging a heat-resistant flat bag, and the blank sheet is sequentially cut through folds a, b, c and d. A front plate 1, a right side plate 2, a back plate 3, and a left side plate 4 are provided in series, and each bottom plate is provided at a lower end of each of the front plate 1, the right side plate 2, the back plate 3, and the left side plate 4 via a fold e. 1a, 2a, 3a,
4a, the front plate 1, the right side plate 2, the back plate 3,
The top plates 1b, 2b, 3b, 4b are connected to the upper end of the left side plate 4 via folds f, respectively, and the outer end of the front plate 1 is attached to the left side plate 4. The plate 5 is continuously provided via the fold d.

[0010] The two parallel intermittent separating lines 6a, 6 are continuously formed over the front plate 1, the right side plate 2, and the back plate 3.
Strips 6 and 7 having a narrow width formed by b, 7a and 7b are formed, and the cuts 6 and 7 are formed symmetrically with respect to the right side plate 2.

The separating part 6 is composed of two parallel horizontal separating lines 6.
a, 6b, the front plate 1 is formed in a substantially horizontal direction continuously from the middle of the sticking plate 5 side to the middle of the right side plate 2 and the rear side plate 3 on the left side plate 4 side. The front plate 1 is formed by two parallel inclined separating lines 7a and 7b.
Of the rear plate 3 and the left side plate 4 from the middle on the left side plate 4 side to the left side plate 4, respectively.

The inclination angle of the separating portion 7 can be appropriately set in accordance with the inclination angle at the time of heating a flat bag in which retort food is hermetically sealed, which will be described later, and at least a line parallel to the fold e. (Horizontal direction) is set to less than 90 °, for example, as shown in FIG.
Is set to one of the following:

The front plate 1 and the rear plate 3 have cutout forming plates 8 inclined at an angle substantially equal to the inclination angle of the cut-out portion 7.
Are formed by opposed separation lines 8a and 8b and fold lines 8c (or may be separation lines 8c).

The separating lines 8a and 8b are formed so as to face each other in parallel or substantially in parallel, and the distance between them is equal to the thickness of the left and right side plates 2, 4 which is the flat thickness of the flat outer casing A body. It is set according to the width.

A fold line 8d is formed outside the separation line 8a as necessary, and a buffering (cushion) triangle surrounded by the separation line 8a, the fold line 8d and the horizontal separation line 6b. A plate 8e may be formed.

The left side plate 4 and the attaching plate 5 are provided with cut lines 9 and 9 (half cut line, intermittent cut line) respectively so as to be connected to the end of the separating line 7a of the inclined separating portion 7. Are formed. In addition, a fold g may be formed in the left side plate 4 in the horizontal direction so as to be connected to the end of the separation line 7b of the separation portion 7 that is inclined.

The flat outer casing A is attached to the front panel 1, the right side panel 2, the rear panel 3, the left side panel 4, and the lamination through the folds a, b, c and d of the blank sheet of the outer panel. The attaching plate 5 is bent at a right angle in the same direction, and the left side plate 4 is superimposed on the attaching plate 5 and adhered to form a flat quadrangular rectangular cylinder.

Subsequently, the bottom plates 2a, 4a, 1a and 3a are bent at right angles in this order through the folds e, and the bottom plate 3a is superimposed on and adhered to the bottom plate 1a to form a flat rectangular shape. By forming the bottom of the rectangular tube, an outer box A having a flat rectangular shape as shown in FIG. 4 is formed.

FIG. 2 is a plan view showing an example of a flat bag B for storing heated food which is housed and packaged in the outer box A, and is a heat-resistant retort food packaging wrapping material 11 (low). Single-layer or multi-layer synthetic resin films using films of high-density polyethylene, medium-density polyethylene, high-density polyethylene, ethylene-vinyl acetate copolymer, polypropylene, polyethylene terephthalate, etc., gas barrier properties by depositing inorganic compounds such as silicon oxide A synthetic resin film, a composite film of a synthetic resin film and a gas-barrier synthetic resin film, etc.) in the form of a tube, or folded in two or two, and opened at one open end of the stacked packaging material 11 Part, or the two-sided open end, or the three-sided open end, is heated and press-sealed to form a hermetically sealed portion 12, and the other end is filled with an opening. Those which are manufactured bag as bag housing 13 is formed to (pouch).

The flat bag B is filled with contents such as food for retort from one end opening into the storage section 13 and then the opening is heated and press-sealed to form a hermetically sealed section 1.
2 (filling seal portion) is formed and packaged. The package is opened along the cutting line L for opening from the notch 14 for opening, and the flat bag B is opened when heating. .

FIG. 3 is a plan view showing an example of a flat bag B provided with a steam venting mechanism for packaging heated food which is housed and packaged in the outer box A, and has the same heat resistance as the above. The packaging material 11 for retort food packaging is folded in two or two, and the two-side open end or the three-side open end of the overlapped packaging material 11 is heated and press-sealed to form a hermetically sealed portion 12. A storage unit 13 formed and having the remaining one end as a filling opening
Is made as a bag (pouch) in which is formed.

The flat bag B is provided with a steam vent portion. For example, as shown in FIG. 3, unsealed portions 12a are provided at upper portions of the left and right sealed seal portions 12 facing each other. Narrow sealing part 1 for steam release
2b, and a narrow hermetic seal portion 12b
Is opened and peeled earlier than other hermetically sealed portions by the vapor pressure in the bag generated by heating, so that the vapor in the bag can be released. Note that the bag structure relating to the steam release is not particularly limited in the present invention.

The flat-shaped bag B is provided with the unsealed portion 12
The lower end on the opposite side to the upper part provided with a serves as a filling opening, and after the contents such as food for retort are filled into the storage portion 13 from the one end opening, The opening is heated and pressurized to form a hermetically sealed portion 15 (filled seal portion) and packaged.

In the present invention, as shown in FIG. 4, the flat bag B in which a retort food is filled and hermetically sealed is packed in a flat rectangular outer box A.

The flat rectangular outer casing A is pulled through the cut line 7c at the end of the separating portion 7 to pull out the end of the band-shaped separating portion 7 and cut off the separating portions 6, 7. By doing
It is separated into a lid part A1 and a bag storage box part A2.

As shown in FIG. 5, the separated lid A1 is
The cut lines 8a and 8b formed on the front plate 1 and the rear plate 3 are cut off, and the cutout forming plate 8 is folded to both outer sides of the front plate 1 and the rear plate 3 through the fold line 8c (or the cut line). As a result, the inclined notches 21 are formed on the front plate 1 and the rear plate 3 so as to face each other.

When the fold 8c is a separating line, the notch forming plates 8 formed on the front plate 1 and the back plate 3 are cut off through the separating line 8c, so that the front plate is cut. Notch 2 inclined to 1 and back plate 3
1, 21 may be formed facing each other.

As shown in FIG. 6, the cover A 1 has cutouts 21 formed in the front plate 1 and the back plate 3 of the cover A 1.
Bag storage box part A2
The top of the cover A1 and the bottom of the bag storage box A2 cross each other in a cross shape, and the bag storage box A2 is tilted. It stands up while being held by the section A1.

In the bag storage box portion A2 held upright in an inclined state, for example, a flat bag B in which foods for heating are packed is inserted and stored as a heating article.

When the flat bag B without steam release shown in FIG. 2 is inserted and stored in the bag storage box section A2 for heating and cooking, the upper end of the flat bag B is cut along the cutting line L. After opening the bag, it is inserted and stored in the bag storage box A2, and the flat bag B is stored in the bag storage box A2, placed in a microwave oven, and cooked by microwave (high frequency). .

When the flat bag B having a steam vent shown in FIG. 3 is inserted and stored in the bag housing box portion A2 for heating and cooking, the filling seal portion 15 at one end is filled with food. Since the seal portion is later sealed, the seal strength tends to be weaker than that of the seal portion 12 at the other end. The flat bag B is inserted into the bag storage box portion A2 in an unopened state with the filling seal portion 15 having a relatively low sealing strength being set downward and the filling seal portion 15 having a relatively low sealing strength being set downward. In a state of being housed in a microwave oven, it is heated and cooked by microwave (high frequency), and the narrow-width hermetic seal portion 12b is peeled off by steam pressure generated in the bag body by heating to cook while steam is released. Things.

In the case where the narrow sealing portion 12b is formed at the middle of the flat bag B in the vertical direction,
It is necessary to be able to store the filling seal portion 15 with the filling seal portion 15 facing down. For this purpose, appropriate measures such as displaying the heating and storing direction on the outer surface of the bag B are taken.

When the flat bag B having no steam vent shown in FIG. 2 is heated, even if it is opened, the flat bag B has a flat thickness at the bottom due to the increase in flexibility of the bag B and the weight of the food. 3. Since the flat bag B with the steam vent shown in FIG. 3 is heated in a sealed state, the steam pressure and flexibility generated in the bag B and the weight of the food are increased. In the lower part, a swelling occurs in the flat thickness direction, so that the front plate 1 and the back plate 3 of the bag storage box portion A2 also swell in the thickness direction of the box.

Therefore, a triangular plate 8e for cushioning (for cushioning) is provided on the lid portion A2 through a fold portion 8d (ruled line) as required, as shown in FIGS. 1, 5, and 6. And a triangular plate 8e corresponding to the bulge of the bag storage box portion A2.
The front plate 1 and the rear plate 3 which are swollen while being bent through the fold portion 8d are elastically held from the outside. The triangular plate 8e works better by, for example, forming a fold in the fold 8d before the heating operation.

The front plate 1 and the back plate 3 respectively have
As shown in FIG. 1, folds 1c and 1c (ruled lines) combined with triangular isosceles, and folds 3c and 3c
(Pressed lines) are provided as necessary, and the triangular plate 8
Similarly to e, the front plate 1 and the rear plate 3 are bent through the folds in accordance with the bulging of the bag storage box portion A2, and the bag storage box portion A2 is regularly moved along the fold portion. It can be swollen and deformed. Also, for example, by making the folds 1c and 3c have a folding habit in the direction in which the bag storage box portion A2 expands before the heating operation, the front plate 1 and the rear plate 3 can be deformed by the bulging deformation of the bag storage box portion A2. Works well so as not to make the irregular deformation.

In the heating package according to the present invention, a non-self-supporting flat bag containing food for heating such as retort food is raised and held in an inclined position by the outer box for the bag. However, heating can be performed while being inclined in one direction, and more stable heating can be performed than when heating is performed while being held in a vertical posture.

As in the case of a self-supporting bag, particularly a bag heated in a vertical position, the microwaves reach the food inside the bag in an inclined position and are heated, and the food is heated. It can be cooked while being stably stored and held in a microwave oven.

[0038]

The heating package according to the present invention has a heat-resistant article formed on a flat outer box body which stores and packs a flat bag body in which a heating food such as a retort food is hermetically sealed. Is provided for holding the storage box portion for storing the flat bag body in the inclined standing position, and the heating food is stored in the bag body storing box portion held in the inclined standing position by this means. Since the heat-resistant flat bag containing the bag is stored and heated by microwave irradiation, there is no need to change the shape of the flat bag for food packaging for heating to a free-standing bag. The bag body can be heated in a microwave oven with the bag body placed in the bag itself, so that the juice and seasoning liquid from the food will not spill out of the bag body. Food packaging without changing the production line for food packaging bags It can be provided as a product that can be heated with a microwave oven in a state where it is housed inside, and can be self-supported in an inclined posture without the need for other members simply by adding a few perforations and cuts to the flat outer box It becomes a box, the bag is put in this free-standing box, the bag is made to stand on its own, and it can be heated in a microwave oven while it is in the bag. It has the effect that it has.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating an example of a blank sheet of a flat outer casing in a package of the present invention.

FIG. 2 is a plan view illustrating an example of an open-type flat bag in the package of the present invention.

FIG. 3 is a plan view illustrating an example of a flat bag of a vapor release type in the package of the present invention.

FIG. 4 is an overall perspective view for explaining an example of a flat outer box in which a flat bag in a package of the present invention is stored and packaged.

FIG. 5 is an overall perspective view of a lid obtained by opening the flat outer casing in the package of the present invention.

FIG. 6 is an overall perspective view showing a state in which a storage box section storing a flat-type bag body is combined with a lid obtained by opening the flat-type external box body in the package of the present invention in an inclined posture.

[Explanation of symbols]

A: Flat exterior box A1: Lid A2: Bag storage box B: Flat bag L: Cutting line 1: Front plate 2: Right side plate 3: Back plate 4: Left side plate 5: Adhesion plate 6 ... Separation part 7 ... Sloped separation part 8 ... Notch forming plate 9 ... Separation line 11 ... Film wrapping material 12 ... Seal seal part 12a ... Unseal part 12b ... Narrow seal seal part 13 ... Food and other goods storage part
14 ... Notch for opening 15 ... Filling seal part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E060 AA03 AB05 BC04 CE05 CE07 CE14 CE22 CF05 DA30 EA02 EA03 EA06 EA13 3E067 AA04 AB01 BA06C BA12B BB01C BB14B BB15B BB16B BC06C CA04 CA17 EB03 EB05 EB07 EE07

Claims (1)

[Claims] 1. A heating package comprising a heat-resistant flat bag body in which articles such as foods to be heated by microwave irradiation are hermetically sealed, and a flat outer box body housing and wrapping the bag body. An upper or lower part of the flat outer box body is provided with a lid part which can be separated by cutting off a cutting part for opening the box provided on the outer periphery of the flat outer box body, and opposes in the thickness direction of the flat outer box body. A package for heating, characterized in that a cutout portion formed at a predetermined angle in the direction of the left and right side plates of the flat outer casing is provided on the front back plate of the lid.