JP2938518B2 - Storage body for reheating cooked food and cooking method using the same - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a container such as a bag for reheating cooked food in a microwave oven and a cooking method using the same.

[Prior Art] With the spread of microwave ovens, a large amount of cooked foods to be reheated and cooked in microwave ovens has come to be marketed. These cooked foods are stored in plastic containers or bags that can heat the contents of the microwave heating of the microwave oven. is there. The problem in such containers and bags is the steam generated during reheating. That is, during cooking, unless the steam is allowed to be discharged to the outside to some extent, the container or the like may swell and burst. Therefore, in a conventional container or bag, for example, as disclosed in Japanese Patent Application Laid-Open No. 62-94117, a water vapor discharge hole for discharging water vapor generated during cooking to the outside is formed. At the distribution stage, the water vapor discharge hole is closed by sticking an adhesive tape or the like on the upper side, and the adhesive tape or the like is peeled off before cooking and put into a microwave oven. After heating and cooking, in the case of a bag, the bag is torn from a V-cut portion or the like formed in a heat seal portion or the like and opened to take out the contents.

Further, as another packaging bag for microwave oven food, a special thin film is sandwiched between at least a part of the heat sealing portion, the sealing strength of this portion is made relatively weaker than other portions, and the bag is heated when heated in a microwave oven. There is also a structure in which the weak seal strength portion is peeled off by the water vapor generated therein. Water vapor flows out of the opening, and after cooking is completed, the contents can be taken out from the opening.

[Problems to be Solved by the Invention] However, in these conventional bags, if it is attempted to heat food for the purpose of sterilization after putting the food inside and closing it,
Since a weak portion is formed in a part of the bag, there is a problem that the bag is broken at the weak portion. That is, in the former bag in which a water vapor discharge hole is formed and an adhesive tape or the like is adhered thereon, the adhesive tape or the like may be peeled off due to an increase in internal pressure during heating. Also, in the latter bag in which a weak portion is formed in the heat-sealed portion, the weak portion may be similarly broken. Therefore, such a conventional food packaging bag for a microwave oven cannot be heated after being opened.

In addition, these bags are torn from the V-cut section and opened, but when opening, the contents are heated and warmed, so the bag cannot be torn firmly with the bag, and tears in unexpected directions. There was a case. Moreover, when tearing and opening, the contents may spill from the opening. Further, as described above, the water vapor discharge hole is closed with an adhesive tape or the like, but the sealing property of this portion sometimes becomes a problem. For example, the adhesive tape may be peeled off during distribution such as transportation. In addition, since the adhesive tape can be adhered to the original state after being peeled off, there is a possibility that foreign matter may be mixed in from the water vapor discharge hole.

SUMMARY OF THE INVENTION An object of the present invention is to re-heat a cooked food which can solve such conventional problems, can be sterilized by heating after sealing, and can be easily opened without spilling out the contents. An object of the present invention is to provide a container and a cooking method using the same.

Means for Solving the Problems The container for reheating cooked food of the present invention is mainly made of a synthetic resin film, and has at least one surface as an opening surface of the container. A bag-shaped storage body, and an opening band for opening the storage body along the opening surface is provided by being adhered to the inside of the opening surface, and the opening band has a lengthwise direction. By forming a pair of cuts parallel to each other, a band for tearing is formed between the cuts, and a knob is formed at one end of the band for tearing. When heating, pinch the knob and pull up a part of the band for tearing to tear off a part of the opening surface so that it becomes a water vapor discharge hole for discharging the water vapor generated from the cooked food to the outside. Have been able to.

In addition, the cooking method of the present invention includes a synthetic resin film as a main body, and has at least one surface as an opening surface. The inside of the opening surface of the bag-shaped container for reheating with a microwave oven is formed along the opening surface. An opening strip is bonded and provided, a pair of cuts are formed in the opening strip parallel to each other along the length direction, a tear strip is formed between the cuts, and a tear strip is formed. Prepared food is placed in a container with a knob formed at one end, and the food is generated from the cooked food by pinching the knob and pulling up a part of the band for tearing and tearing part of the opening surface. After making the water vapor discharge hole to discharge the water vapor to the outside, the cooked food is reheated in a microwave oven, and after cooking by reheating, the knob is pinched and the remaining part of the band for tearing is pulled up. To open the opening side.

In the present invention, the synthetic resin film forming the bag-shaped housing may be a single-phase film or a multilayer film.

[Operation] In the container for reheating of the present invention, a band for tearing formed by a pair of cuts parallel to each other along the longitudinal direction of the band for opening is formed inside the opening surface. The tear-off strip can be opened by grasping the knob at one end of the tear-off strip and pulling up the tear-off strip. Before cooking by reheating with a microwave oven, a part of the band for tearing is pulled up and a part of the opening surface is torn, thereby forming a small opening in the opening surface. It can be a discharge hole.

After cooking, the user can grasp the knob to pull up the remaining portion of the tear strip to open the opening surface.
Since the opening is performed along the band for tearing, the opening can be surely opened in a predetermined direction. Further, by opening the package with the opening surface facing upward, the contents can be opened so that the contents do not fall out from the opening.

The container for reheating according to the present invention is merely provided with an opening strip on the inside of the opening surface, and since a weak portion is not formed in a part of the bag as in the related art, food can be prepared. Even if it is heated for the purpose of sterilization after being put inside, there is no possibility that a part of the storage body is broken.

Embodiment FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 3 is a sectional view taken along the line III-III in FIG. Referring to FIGS. 1 and 3, both ends of bag-shaped housing 1 are heat-sealed to form heat-sealed portions 2 and 3. Inside the center of the opening surface 4 of the bag-shaped storage body 1, an opening strip 5 is provided by thermal bonding.
The opening strip 5 has a pair of cuts 5c extending in the longitudinal direction.
Are formed, and the slit 5c is formed by the cut 5c.
5a is formed. One end of the tear strip 5a is cut away to be released from the opening surface 4, and a knob 5b is formed.

By pulling the band 5a for tearing by grasping the knob 5b, the opening surface 4 is pulled down along the cut 5c, and the opening surface 4 is opened.

The container for reheating according to the present invention is such that the band for opening is provided only by thermal bonding inside the opening surface 4 of the bag-shaped container 1, and a weak portion is not formed. So
It can be heated even after the food is put inside and closed.

In the container for reheating according to the present invention, before the reheating by the microwave oven, the band-like portion for tearing 5a is partially raised to form a small opening, and this opening is used as a water vapor discharge hole.

FIG. 2 shows this state. As shown in FIG. 2, the water vapor discharge hole 6 is formed by pinching the knob 5b and slightly pulling up and tearing the vicinity of the end of the band 5a for cutting. In this state, it is placed in a microwave oven, reheated and cooked.

Water vapor generated from the contents is discharged to the outside through the water vapor discharge holes 6. After cooking, it is removed from the microwave oven, the knob 5b is re-pinched, and the remaining portion of the tear strip 5 is pulled up, whereby the opening surface is cut along the cut 5c and opened. By setting the opening surface 4 to the upper side, the contents can be opened without spilling from the opening at the time of opening.

In the present invention, the size of the water vapor discharge hole 6 formed in the housing is determined by the length of the portion of the tear strip 5a to be pulled up. Therefore, the size of the steam discharge hole 6 can be changed according to the type of the contents or the type of cooking. To form the water vapor discharge hole 6, a band for tearing is used.
When the 5a is pulled up, a line serving as a mark is appropriately attached to the opening surface 4 of the opening strip 5 by printing or the like so as not to become a large water vapor discharge hole 6 due to excessive pulling, or the tear strip 5a is formed. It can be lightly and partially thermally bonded so as to cause catching when the lifting reaches a predetermined length.

In addition, when fried food such as fry or tempura is stored inside as a food, it is preferable that the storage body has a structure capable of absorbing oil. FIG. 4 is a cross-sectional view showing an example of such a laminated film capable of absorbing oil. Referring to FIG. 4, a polyester film 11 is laminated on a non-woven fabric 12. Also nonwoven 12
Below, a perforated polyethylene film 13 is laminated. The perforated polyethylene film 13 is provided with a number of small holes through which oil can pass, and forms a storage body such that the perforated polyethylene film 13 is on the inside. When a deep-fried product is stored inside using a storage body formed of such a laminated structure film, oil on the surface of the deep-fried product or the like comes into contact with the perforated polyethylene film 13, passes through the small holes, and is absorbed by the nonwoven fabric 12. For this reason, if the reheating container of the present invention is formed using the laminated film having such a structure, the fried food and the like can be reheated with a crisp finish.

In the above-described embodiment, the opening strip is provided at the center of the opening surface 4; however, the position where the opening strip is provided is not particularly limited, and is appropriately selected according to the contents, the form of the bag, and the like. be able to.

[Effects of the Invention] The container for reheating according to the present invention is simply provided by bonding an opening band to the inside of the opening surface, and a weak portion is formed partially as in the conventional case. Even after the food is put inside and closed, it can be heated before shipment for the purpose of sterilization or the like.

In the container for reheating according to the present invention, the tearing band can be pulled up to open the opening surface at a predetermined location, and the content can be opened so as not to spill out from the opening. it can.

In addition, before cooking, a part of the band for tearing can be pulled up to form a water vapor discharge hole, eliminating the need for a conventional water vapor discharge hole and attaching an adhesive tape or the like to it. , A simpler structure can be achieved. Further, there is no possibility that the adhesive tape is peeled off or a foreign substance is mixed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a perspective view showing a state in which a part of the opening surface of the embodiment shown in FIG. 1 is torn to form a water vapor discharge hole. FIG. 3 is a sectional view taken along the line III-III in FIG. FIG. 4 is a cross-sectional view showing a laminated structure of a laminated film that can be used for the reheating container of the present invention. In the figure, 1 is a bag-like storage body, 2 and 3 are heat seal portions,
4 is an opening surface, 5 is an opening strip, 5a is a tear strip, 5b
Reference numeral 5c denotes a cut, 5 denotes a water vapor discharge hole, 11 denotes a polyester film, 12 denotes a nonwoven fabric, and 13 denotes a perforated polyethylene.

Claims (2)

(57) [Claims] 1. A bag-shaped container which is mainly made of a synthetic resin film and has at least one surface as an opening surface of the container, which is to be reheated in a microwave oven. An opening strip for unsealing the container is provided along the surface, and a pair of cuts parallel to each other along the length direction are formed on the opening strip to form the cut. A tear strip is formed in between, and a knob is formed at one end of the tear strip to discharge steam generated from the cooked food to the outside when the cooked food as the content is reheated. So that a part of the band for tearing can be pulled up by pinching the knob to tear a part of the unsealing surface so as to be a water vapor discharge hole. , A container for reheating cooked food. 2. A band for opening along the opening surface inside the opening surface of a bag-shaped container for reheating with a microwave oven, which is mainly composed of a synthetic resin film and has at least one surface as an opening surface. The opening strip is provided with a pair of cuts parallel to each other along the length direction to form a tear strip between the cuts, and is provided at one end of the tear strip. A cooked food is put into the storage body having a knob formed therein, and the knob is pinched to pull up a part of the band for tearing and torn a part of the opening surface, thereby generating the cooked food. After the steam is discharged to the outside, the cooked food is reheated in a microwave oven. After cooking by reheating, the knob is pinched and the remaining portion of the band for tearing is removed. Pull up the opening surface to open the opening, reheating storage Cooking method using.