JPH072418Y2 - Breathable synthetic resin packaging bag - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a packaging bag. More specifically, it is a breathable synthetic resin among packaging bags for packing and sealing food such as hamburgers and hot dogs. The present invention relates to a packaging bag made of metal.

[Conventional technology]

Paper bags and plastic bags are often used as packaging bags for food such as hamburgers and hot dogs that have been commonly used. Also, the corners of these bags are attached with glue or adhesive. Therefore, in the case of a paper bag, it is suitable for containing dried food, but it is not suitable for containing food such as water and high temperature. Further, in the case of a plastic bag, any food such as water and high temperature can be packed, but it is not breathable and is liable to cause discoloration, decay and the like. Especially in the case of a plastic bag, it is not breathable, so if you heat it in a microwave oven while keeping food in it, steam fills up the bag, not only breaking or damaging the bag, but also degrading the contents of the food. , And many other problems arose.

[Problems to be solved by the invention] In order to solve such a problem, while taking advantage of the characteristics of the conventional paper bag and the vinyl bag and eliminating the drawbacks, a packaging bag that can be easily manufactured, The present invention has problems to be solved. That is, a paper material for a packaging bag is coated with an olefinic synthetic resin material to such an extent that air permeability is not impaired, and the coated surface and a synthetic resin film having transparency are pressure-bonded so that they can be easily manufactured. However, there is a problem to be solved by the present invention in an attempt to make a packaging bag that allows the inside of the bag to pass through while allowing the inside to be seen.

[Means for solving problems]

The present invention was developed in order to solve the above-mentioned problems, and a soft sheet-like paper material is coated with an olefinic synthetic resin material to the extent that air permeability is not impaired, and in any shape. On both sides of the coating surface on the front and back surfaces 2 and 3 having the same shape, side surfaces 4 and 4 made of a transparent synthetic resin film that can be pressure-bonded to the olefin-based synthetic resin material are left, leaving a part of the adhesive. It is a packaging bag made of synthetic resin having air permeability that allows the food to be heated in a packaged state by pressure-bonding and molding without using.

[Action]

According to the breathable synthetic resin packaging bag having the above configuration, the side surfaces 4 and 4 are made of the synthetic resin film itself that can be pressure-bonded to the olefin-based synthetic resin material.
It is a characteristic of paper materials that can be pressure-bonded to form a bag without using an adhesive on the front and back surfaces 2 and 3 that are coated with an olefinic synthetic resin material to the extent that the air permeability is not impaired. While providing breathability, it also has the sealing property that is a characteristic of synthetic resin materials. It is possible to put food just after cooking through the opening 6 of the packaging bag and seal it. Even in this state, water vapor generated from the food escapes from the front and back surfaces 2 and 3, and the food can be seen from the transparent side surfaces 4 and 4. it can. Furthermore, when eating, even if the food is heated in a microwave oven etc. in the packaged state, the generated steam escapes from the front and back surfaces 2 and 3, and no odor is generated by the adhesive, and the packaging bag is opened at an arbitrary position. Then eat the food naked.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of a breathable synthetic resin packaging bag of the present invention, in which 1 is the packaging bag body. The packaging bag body 1 is formed in a rectangular shape, and the front surface 2 and the back surface 3 are made of an opaque sheet made of a soft sheet-like paper material coated with an olefinic synthetic resin material to an extent not impairing air permeability, The side surfaces 4 and 4 are made of a transparent synthetic resin film which is transparent and can be pressure-bonded to the above-mentioned olefin synthetic resin material. As shown in Fig. 1 (b), the side surfaces 4 and 4 are bent inward at the center, and the folded portions are flat before use, as shown in Fig. 1 (a). Since it has the same shape as a conventional bag, it is convenient as before in terms of handling before use. Reference numeral 5 denotes an edge portion between the front and back surfaces 2 and 3 and the side surfaces 4 and 4, and the edge portion 5 is
The surface coated with an olefinic synthetic resin material to the extent that the breathability is not impaired and the synthetic resin film itself are sealed by pressure bonding without using an adhesive or glue. Reference numeral 6 denotes an opening of the packaging bag main body 1, which is a portion for packing food, in which a hamburger (food) A is sealed as shown in FIG. It is not visible, but it is visible from both sides 4, 4. As described above, the films on the front and back surfaces 2 and 3 have air permeability, and the both side surfaces 4 and 4 are made of the conventional transparent film which does not have air permeability. Water vapor can pass through the portion and the food such as hamburger A can be preserved in a good condition without deteriorating the taste, aroma, color and luster. Further, since the hot hamburger A is packaged immediately after being cooked because it has air permeability, the temperature of the hamburger A is likely to drop because high-temperature steam escapes. Further, since no adhesive is used in the joint portion of the edge portion 5, even if the hamburger A is heated in a microwave oven or the like in the packaged state, the bad odor or offensive odor of the adhesive generated at the time of heating is attached to the food. There is also the effect that it will disappear.

[Effect of device]

Since the present invention is configured as described above, the side surface is
Since it is composed of a synthetic resin film that can be crimped onto an olefinic synthetic resin material coated on paper, the olefinic synthetic resin material is coated on the paper material to the extent that air permeability is not compromised. Can be pressure-molded without using an adhesive to form a bag. Therefore, it is extremely easy to manufacture, and it becomes possible to obtain a packaging bag having a large packaging capacity because of its side surface.

Further, since the present invention is a packaging bag which has air permeability which is a characteristic of a paper material and also has airtightness which is a characteristic of an olefinic synthetic resin material, the packaging bag immediately after cooking is opened from the opening 6 of the packaging bag. Even if a high temperature food is put in and sealed, even in this state, the steam generated from the food escapes from the front and back surfaces 2 and 3, and the food is not deteriorated by the steam, so that the product can be kept in a good condition. In addition, since the steam with heat is released, the temperature of the food and the humidity in the packaging bag are easily lowered, and the food is easily stored.

Further, since the present invention has a transparent side surface, if the food to be packaged is, for example, a hamburger, it can be viewed from the side by the purchaser, and if it is a hot dog, it can be viewed from the top.

Furthermore, when eating, even if the food is heated in a microwave oven or the like in the packaged state, the generated water vapor escapes from the front and back surfaces 2 and 3, so the bag is not filled and the packaging bag is not ruptured and the stored state of the food is maintained. Does not change. Therefore, the food can be heated in the packaged state, and at that time, the odor caused by the adhesive does not adhere to the food, and the food can be left naked and eaten by opening an arbitrary part of the packaging bag.

The present invention, which has many specific effects as described above, can be conventionally seen from all aspects such as hygiene, handling, operation, working, economic and practical aspects. It is possible to provide a synthetic resin-made packaging bag having air permeability which was not provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic explanatory view showing a breathable synthetic resin packaging bag according to the present invention 1 ... Packaging bag main body 2 ... Front surface 3 ... Back surface 4 ... Side surface, 5: Edge 6: Opening A: Hamburger (food)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-56-97202 (JP, A) real-opening Sho-56-135460 (JP, U) real-opening Sho-59-22736 (JP, U) real-opening Sho-59- 153838 (JP, U) Actual development Sho 64-14647 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A soft, sheet-shaped paper material coated with an olefinic synthetic resin material to an extent not impairing air permeability,
In addition, on both sides of the coating surface on the front and back surfaces 2 and 3 which have the same shape in an arbitrary shape, a part of side surfaces 4 and 4 made of a synthetic resin film which is transparent and can be crimped onto the olefin-based synthetic resin material. A packaging bag made of synthetic resin having breathability, characterized in that the opening portion 6 is formed by pressure-bonding without using an adhesive and the food can be heated in a packaged state.