JPH055154Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a packaging bag, and specifically relates to a bag for packaging hamburgers.

[Conventional technology]

Conventionally, opaque paper bags or plastic bags have been generally used for packaging hamburgers. Moreover, the shape is square or rectangular, and the edges of three places excluding the opening are press-sealed and integrally molded are often used. Therefore, the food inside the bag cannot be seen from the outside, and since the edges are sealed, the food inside the bag may become deformed, and sometimes the bag may tear, resulting in many inconveniences and inconveniences. was occurring.

Furthermore, conventional packaging bags only have the function of simply putting food in and packaging it, and when it was time to eat, the food had to be taken out by hand and disposed of before eating. As a result, if there are no trash cans nearby, packaging bags are thrown away on roadsides and other areas, which not only causes many problems in terms of garbage disposal but also in terms of environmental aesthetics. This also caused hygiene problems as the hands got dirty.

Therefore, the applicant of the present application solved this problem and filed an application (Utility Model Application No. 14647/1983).
That is, this invention changes the structure and function of the packaging bag, such as its material and shape, and uses a transparent film on the side of the bag so that the contents packed in the bag can be seen from the side. The transparent film on the sides can be torn horizontally or vertically, and the contents of the bag can be eaten without touching them directly. In other words, the present invention is an improvement of the above-mentioned application.

[Means for solving problems]

The present invention was developed to solve the above-mentioned problems, and includes a transparent film made of a synthetic resin material being pressure-molded on the side surface of a bag body having an opening, and a transparent film made of a synthetic resin material is pressure-molded on the side surface of a bag body having an opening. In the packaging bag formed with cutouts for breaking at certain points, a smooth perforated body having numerous fitting holes is formed on one side of the film member, and the perforated body is located inside the bag. The present invention provides a packaging bag for hamburgers, characterized in that the perforated film is made of a perforated film having a thickness of 30 microns, a pore diameter of 0.15 mm, and a pore spacing of 0.7 mm; The material of the film is mainly composed of a thermoplastic resin and an antibacterial zeolite, and the antibacterial zeolite is in a range of 0.1 to 5% by weight based on the total weight of the thermoplastic resin. .

[Effect]

(1) In a packaging bag, a transparent film made of a synthetic resin material is pressure-molded on the side surface of a bag body having an opening, and a cutout for breaking is formed at an arbitrary location in the pressure-sealed part. Forming a smooth porous body with countless fitting holes on one side of the member,
The perforated portion is formed inside the bag, so if a hot hamburger is placed inside the bag or left to warm, the steam that builds up inside the bag will flow to the outside of the bag. It comes out easier,
On the other hand, moisture from the outside of the bag is difficult to enter into the bag, making it ideal for use as a packaging bag for hamburgers.

(2) Since the porous film is composed of a 30 micron thick film with a pore diameter of 0.15 mm and a pore spacing of 0.7 mm, it is not only easy to mold, but also inexpensive. Mass production processing becomes possible.

(3) The material of the film is mainly composed of a thermoplastic resin and an antibacterial zeolite, and the antibacterial zeolite is in a range of 0.1 to 5% by weight based on the total weight of the thermoplastic resin. Because the film itself is sterile, and the entire packaging bag is made of these materials, not only will germs not be attached to the hamburger and germs will not grow. , the hamburger can be packaged and stored in a sterile state at all times.

〔Example〕

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

FIG. 1 shows a packaging bag (Utility Application No. 108760/1982) developed by the applicant of the present application, and 1 is the main body of the packaging bag. The packaging bag 1 is formed into a rectangular shape using a film-like material made of synthetic resin such as cellophane. Opaque films are used for the front surface 2 and back surface 3, and transparent films are used for the side surfaces 4, 4. As shown in Figure 1B, the sides 4, 4 are bent inward at the center, and before use, this folded part becomes flat, and as shown in Figure 1A, it is different from a conventional bag body. Since they have the same shape, they are just as convenient to handle before use. Reference numeral 5 denotes the edges between the front and back surfaces 2, 3 and the side surfaces 4, 4, which are sealed by pressure molding as in the conventional case. Reference numeral 6 denotes an opening of the packaging bag main body 1, which is a part where food is packed into bags. Reference numeral 7 denotes a V-shaped notch, which is an important part of the present invention, and is formed in a portion where both side surfaces 4, 4 and front and back surfaces 2, 3 are sealed. In this figure, it is provided on one side of the upper side in the direction opposite to the opening 6, but it can be placed in any position.
Needless to say, the same effect can be obtained no matter where you are. This notch 7 is formed so that the film can be easily and reliably broken in the lateral direction.

FIG. 2 shows the usage state of the packaging bag according to the present invention, in which A shows the state in which the bag is packed and B shows the state in which it is eaten. First, a desired packaging bag 1 shown in FIG. 1 is prepared,
For example, insert the hamburger A through the opening 6 and bring it into the state shown in FIG. 2A. Next, the opening 6 is sealed and the hamburger A is packed into the packaging bag body 1 in a sealed state. In this case, if necessary, it is also possible to simply seal one location with cellophane tape or staple without sealing. Once packaged in this manner, the product is sold directly at a store or boxed and transported to a sales location. At this time, it is very convenient because the handler, seller, or buyer can identify the contents of the bag at a glance.

Next, when the hamburger A is ready to be eaten, as shown in FIG. Then, eat the hamburger A by holding it in one hand with the opening seal portion 8 facing downward. At this time, the hamburger A is also gradually lifted by gradually pushing it out from the opening seal 8, so that the user can eat as much of the hamburger A as he wants without getting his hands dirty.

The material used for the sides of the hamburger packaging bag shown in this example is molded from a conventional synthetic resin material, so there is no air permeability, and the hamburger inside may be contaminated with bacteria. There were many problems in terms of food hygiene, such as spoilage. Therefore, a packaging sheet which is a material used in the present invention and which has been improved in this respect will be explained below with reference to FIGS. 4 and 5.

The antibacterial material of this packaging sheet 21 mainly consists of a thermoplastic resin 22 and an antibacterial zeolite 23, and the antibacterial zeolite 22 is in the range of 0.1 to 5% by weight based on the total weight of the thermoplastic resin 22.

This thermoplastic resin 22 can be mixed with the antibacterial zeolite 23, and has the characteristics required as a packaging sheet for food and drink, such as being able to withstand a certain degree of low and high temperatures, and heat retention and cold retention. Any material may be used as long as it has a certain degree of elasticity, does not give off an odor to food, is water resistant, and is non-toxic.

The thermoplastic resin 22 includes polyethylene, polystyrene, ABS resin, acrylic styrene, polypropylene, ethylene vinyl copolymer, polyvinyl chloride,
Any thermoplastic resin can be used, such as methacrylic, polyamide (nylon), polycarbonate, polyethylene terephthalate, polymethylpentene, fluororesin, polysulfone, oxybenzoyl polyester, and polybutene. Among these, polyethylene (PE), high density polyethylene (HDPE), polystyrene (PS),
ABS resin is the most suitable. However, from the viewpoint of workability, it is preferable to use a material that becomes plastic at a relatively low temperature. However, depending on the intended use, it may be better to use a material that becomes plastic at a high temperature.

The antibacterial zeolite 23 may have antibacterial metal ions, such as silver, copper, zinc, etc., substituted for some or all of the ion-exchangeable ions of natural zeolite or synthetic zeolite (Japanese Patent Laid-Open No. 1986-60). -Refer to Publication No. 181002).

That is, zeolites are generally aluminosilicates with a three-dimensional skeleton structure, and the general formula is
It is expressed as XM ² / _o O・Al ₂ O ₃・YSiO ₂・ZH ₂ O.
Here, M represents an ion exchangeable ion, which is usually a monovalent or divalent metal ion, such as sodium, potassium, magnesium, iron, etc., n is the valence of the metal ion, and X is a metal oxide. Y is the coefficient of silica, and Z is the number of crystal water molecules. Such a general formula XM ² / _o O・
The ion exchange capacity of zeolite expressed as Al ₂ O ₃・YSiO ₂・ZH ₂ O is 2.6 meq/g to 11.5 meq/g
It is. Therefore, the antibacterial zeolite 26 is
These ion-exchangeable ions are replaced with antibacterial metal ions such as silver, copper, and zinc. And antibacterial zeolite 26 is
From the viewpoint of antibacterial properties, these antibacterial metal ions are present in the zeolite at a concentration of 0.1 to 15% by weight (based on drying at 110°C).
It is desirable that the content be as high as .

Moreover, this antibacterial zeolite 23 may be a natural zeolite or a synthetic zeolite in which part or all of the ion-exchangeable ions are replaced with ammonium ions and antibacterial metal ions (Japanese Patent Application No. 61-290144). (See "Antibacterial Zeolite" filed on December 4, 1988, claiming priority under Article 42-2, Paragraph 1 of the Patent Law). The reason for adding ammonium ions in this way is to effectively prevent discoloration of the antibacterial zeolite 23, and the ammonium ions in this antibacterial zeolite 23 are 0.5
A content in the range of ~2.0% by weight is preferable. Furthermore, from the viewpoint of substantially preventing discoloration of the thermoplastic resin 22, it is preferable that the content of the antibacterial zeolite 23 containing ammonium ions is 0.1 to 3.0% with respect to the thermoplastic resin 22. .

The antibacterial properties, sustainability of antibacterial activity, heat resistance, and safety of these two types of antibacterial zeolites 23 are described in detail in these publications or application examples.

Next, a method for forming a packaging sheet will be explained.

A perforated body is made by inserting a large number of hot needles heated above the melting temperature of the perforated body into a plastic perforated body such as a synthetic resin film or sheet to create a perforated body with countless holes. Immediately after forming the hole and piercing the hole so that the porous body heated by contact with the hot needle can maintain its temperature, the porous body is passed between press molding rollers having heat resistance and mold release properties. By smoothing out the protrusions around the fitting hole that have formed on the surface on the hot needle insertion side, a porous body with a smooth surface is formed. Among the products obtained by this forming method, the packaging sheet used in this invention is a perforated film with a thickness of 30 microns, a pore diameter of 0.15 mm, and a pore spacing of 0.7 mm. Ta.

[Effect of idea]

Since the present invention is configured as described above, when a hamburger is packaged or stored at high temperature or room temperature, steam generated inside the bag can easily escape from the bag, and moisture etc. outside the bag can be absorbed into the bag. It becomes difficult to enter,
As a result, it is possible to provide a hamburger that retains its freshly prepared flavor and aroma, as well as its nutritional content, when eaten.

In addition, since the packaging bag is made of sterile material, it not only does not attract germs, but also has many hygienic effects, such as preventing food poisoning caused by germs.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the packaging bag for hamburgers of the present invention, Fig. 2 is an explanatory outline diagram showing the usage state of the present invention, and Figs. 3 to 5 are the packaging bags which are the main parts of the present invention. FIG. 2 is a partially enlarged plan view and a partially enlarged sectional view of FIG. 1... Packaging bag body, 4... Side (perforated film), 8... Small hole, 21... Packaging sheet, 23
...Antibacterial zeolite.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A transparent film made of synthetic resin is pressure-molded on the side surface of a bag having an opening, and a cutout for breaking is formed at an arbitrary location in the pressure-sealed portion. In the packaging bag, a smooth perforated body having countless fitting holes is formed on one side of the film member,
A packaging bag for hamburgers, characterized in that the perforated portion is formed inside the bag. (2) The porous body of the film has a thickness of 30 microns,
The hamburger packaging bag according to claim (1), comprising a porous film having a pore diameter of 0.15 mm and a pore spacing of 0.7 mm. (3) The material of the film is mainly composed of a thermoplastic resin and an antibacterial zeolite, and the antibacterial zeolite is in a range of 0.1 to 5% by weight based on the total weight of the thermoplastic resin. The hamburger packaging bag according to claim (1) or (2).