JP2571569Y2 - Food packaging for microwave oven - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the field of pouches for microwave ovens and relates to a food package for microwave ovens in which processed foods and the like are enclosed in a pouch body.

[0002]

2. Description of the Related Art In a conventional microwave pouch,
As a steam vent generated when heating in a microwave oven,
Opening a part of the pouch body at the time of heating, providing a through hole in the pouch body, or opening the seal easily or opening the valve when the steam pressure inside the pouch body increases due to heating Or so on.

[0003]

[Problems to be Solved by the Invention] Among the above-mentioned pouches for microwave ovens, those which are partially opened before being placed in a microwave oven, require much time and effort to open, and a through hole is provided. Since the stored contents always come into contact with the outside air, there is a problem in storage and distribution, and in the case of a part of the seal that opens due to vapor pressure, care must be taken when hitting the seal. In addition, there is a risk of opening during the distribution stage, and for those with a valve, it is necessary to prepare and attach a separate valve, and these conventional pouches have their own problems. Was.

The present invention has been devised in order to improve such a point. The purpose of the present invention is to stabilize the contents at the time of enclosing and storing them, or at the stage of distribution, and to perform a special operation at the time of heating. An object of the present invention is to provide a food package for a microwave oven that can be used without applying any heat.

[0005]

In order to achieve the above-mentioned object, the present invention solves the problem by interposing a breathable non-woven fabric with a heat-resistant synthetic resin film constituting a pouch body. We are working on a solution. That is, the present invention uses a nylon / unstretched heat-resistant synthetic resin film.
Polypropylene or stretched polypropylene / unstretched polypropylene
Using propylene, no-roll of the heat-resistant synthetic resin film
Back seal of the pouch body with the expanded polypropylene side inside
Make sure that there is a fixed space between
A propylene-based non-woven fabric is abutted from the inside and heat-resistant synthetic resin
Unstretched polypropylene surface of film and polypropylene type
The pouch body is constructed by heat sealing with the nonwoven fabric surface.
An electronic device characterized by encapsulating the contents of processed food into it
It consists of a food package for a stove.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The present invention is a food package in which a processed food that can be eaten by heating is enclosed in a pouch,
By placing the pouch in a microwave oven or the like, the steam generated in the pouch is removed during heating. The pouch (A) for a microwave oven has a pouch body (a) comprising a heat-resistant synthetic resin film (1) folded from both side edges of the back seal, and the back seal of the pouch body (a) is formed. The portion (b) has a fixed interval (x) between the folded side edges of the film (1), and the back seal portion (b) separated by the fixed interval (x) is located inside the pouch body (a). Therefore, it is heat-sealed with a breathable tape-shaped nonwoven fabric (2). The width of the fixed interval (x) is determined by the type of the content (B) stored in the pouch body (a). That is,
Large steam generators are wide and small steam generators are narrow. Such back-sealed pouch body (a)
Is heat sealed at one end (3) and open at the other end (4)
The contents (B) of the processed food, which can be eaten by heating, for example, are placed on the pouch body (a) in this unit as it is or placed in a tray (C) or the like, and the open end ( 4), heat sealed (4 ') and sealed. After the unit pouch body (a) is formed as described above, the contents (B) are stored therein and heat-sealed (4 '). In addition to the case, the band-shaped heat-resistant synthetic resin film (1) and The contents (B) may be stored in the process of unwinding the band-shaped nonwoven fabric (2) to form the pouch body (a).

As the heat-resistant synthetic resin film (1),
For example, nylon 15 μm / unstretched polypropylene 40
積 層 60 μm or a stretched polypropylene 20 μm / unstretched polypropylene 40 to 60 μm laminated film having a length of about 200 m, which is folded from both side edges in the width direction such that the unstretched polypropylene side is inside, and the pouch ( The width of a) is 200 mm, and the distance (x) between both side edges at this time is 5 mm and 15 mm. The width of the polypropylene-based nonwoven fabric (2) for heat-sealing the gap (x) is 20 mm and 30 mm, and the width of the heat-sealed portion between the film (1) and the nonwoven fabric (2) is about 7 mm.
It is. As this polypropylene-based nonwoven fabric, for example, Luxer P1 manufactured by Asahi Kasei Corporation
060ZZ is used. The flat cylindrical body thus back-sealed is cut into a length of 220 to 230 mm, and the cut end is heat-sealed (3) with a width of about 10 mm to form a unit pouch body (a). ). Pouch body (a)
Is to store the content (B) of the processed food as it is or to store it in a tray (C) or the like. At this time, the tray (C) is made of, for example, a polypropylene-based non-woven fabric. It is formed and stores processed foods such as gyoza and shomai in its storage section (5).

[0008] The food package in which the contents (B) are stored and enclosed in the pouch body (a) of the microwave pouch (A) as described above enters the inside by the nonwoven fabric (2). There is no danger, and the storage is of course on the distribution channel. The pouch (A) for a microwave oven containing the contents (B) such as processed foods and heat-sealed (4 ') is placed in a microwave oven for use, and the contents in the pouch body (a) are placed. After the pressure generated from (B) increases to some extent, the vapor permeates outside through the nonwoven fabric (2) portion of the back seal portion (b), and the content (B) is heated so that it can be eaten. You. When the pouch (A) for a microwave oven is heated with a steamer, surrounding heating steam enters the pouch body (a) through the nonwoven fabric (2) and is generated from the contents (B). In conjunction with the steam, it is heated so that it can be eaten.

[0009]

According to the present invention, the space between the back seal portions of the heat-resistant synthetic resin film is heat-sealed with a breathable non-woven fabric to form a pouch body, and the pouch body can be eaten by heating. Since it is a food package for a microwave oven that contains and heat seals the contents of food, the contents of processed food enclosed in the pouch body may be infiltrated by bacteria, etc., even though the nonwoven fabric is breathable. There is no such thing and the inside is not contaminated as it is, so it can be stored as a food package and can be placed on the distribution channel, and when heated in a microwave oven, the pouch body does not collapse due to heat Since the steam generated from the contents inside escapes to the outside through the non-woven fabric of the back seal part, the pouch body is not damaged and is removed from the microwave as it is. Ri can be issued. Further, since the nonwoven fabric has an appropriate sealing property, the steam pressure in the pouch body is increased, and the heating effect can be enhanced well. Further, the pouch body can be easily manufactured by a flow operation of a long heat-resistant synthetic resin film and a nonwoven fabric, and can be provided at a low cost. Incidentally, the pouch body, the back sealed portion of the unstretched polypropylene side of the heat-resistant synthetic resin film on the inside, because the polypropylene nonwoven abuts from the inside is obtained by heat sealing, excellent heat resistance
And a strong seal strength is obtained, and the sealing portion of the nonwoven fabric, which is relatively thick with respect to the film, does not come out to the outside, so that the outer surface of the pouch body has a good feel without any ridges. Become. Pouches for microwave ovens with the above effects are processed into pouch bodies
By packaging refrigerated foods, processed frozen foods, and the like, it is suitable as a food package.

[Brief description of the drawings]

FIG. 1 is a plan view of a pouch main body used for a food package for a microwave oven according to the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a perspective view of a food package in which contents such as processed food are stored in a pouch and heat sealed.

FIG. 4 is a perspective view of a food package in a state where contents such as processed foods are put in a tray, stored in a pouch, and heat sealed.

[Explanation of symbols]

 Reference Signs List A Pouch for microwave oven B Contents C Tray a Pouch body b Back seal part x Spacing part 1 Heat resistant synthetic resin film 2 Nonwoven fabric 3 Heat seal part 4 Open end 4 'Heat seal part 5 Storage part

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroko Tsukada 1-1-1, Ichigaya-Kaga-cho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (56) References JP-A-1-291754 (JP, A) 1979-73174 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A heat-resistant synthetic resin film comprising nylon
/ Unstretched polypropylene or stretched polypropylene /
Using unstretched polypropylene, the heat-resistant synthetic resin fill
The back seal part of the pouch body with the non-stretched polypropylene side inside is spaced at regular intervals, and this part is ventilated.
Heat resistant polypropylene non-woven fabric from inside
Unstretched polypropylene surface of synthetic resin film and polypropylene
A food package for a microwave oven, characterized in that a pouch body is formed by heat sealing with a pyrene-based nonwoven fabric surface, and the contents of a processed food are enclosed in the body.