JPS5929888Y2 - Composite sheet for food packaging - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a composite sheet for food packaging that is convenient for preserving various foods.

Transparent synthetic resin films called wrap films are widely used in general households, as well as in various restaurants and fresh food stores, for packaging fresh foods such as fish and vegetables.

This wrap film has excellent adhesion and is hygienic, so it is convenient for preservation purposes. For example, when preserving fresh foods in the freezer, wrap each food item in the wrap film one by one and store it in the freezer of a refrigerator. It is also widely used to put it in.

However, when simply wrapping food in cling film, the quick freezing effect is small, so when quick freezing is desired, the method used is to place the food wrapped in cling film on a metal plate and deliver it to the freezer compartment. The reality is that there are.

Another method is to use aluminum foil, which is a preferable means to obtain a quick freezing effect, but aluminum foil has poor adhesion to the food, so air remains between the food and the aluminum foil. However, it is not suitable for foods with complicated shapes, and it has the disadvantage that the contents cannot be seen.

This invention utilizes the quick freezing effect of aluminum foil and the adhesiveness and transparency effects of cling film to provide a convenient composite sheet for food packaging that can exhibit the advantages of both at the same time. As shown in the example, a transparent wrap film 1 and an aluminum foil 2 are polymerized in a peelable manner, and rolled into a roll having a predetermined length with a width of about 20 to 40 cm to form a blade that can be cut in the width direction. It is housed in a packaging box 3 with a

The wrap film 1 applied to the present invention is a transparent film with a thickness of about 20 to 40 μm obtained from synthetic resin such as polyvinylidene chloride, polyethylene, polyvinyl chloride, butadiene, etc. It is preferable that the thickness be approximately the same as that of film 1 or slightly thicker.

In this way, the composite sheet for food packaging according to the present invention is made by polymerizing the transparent wrap film 1 and the aluminum foil 2 so that they can be peeled off, and winding them into a roll shape having a predetermined length with a width of about 20 to 40 cm. Since it is housed in a packaging box 3 equipped with a blade that can cut in different directions, when preserving fresh foods in a frozen state, a predetermined length of the composite sheet is pulled out from the packaging box 3 like a conventional cling film. After cutting in the width direction, the wrap film 1 is peeled off from the aluminum foil 2, the food 4 is first placed on the aluminum foil 2, and then the peeled wrap film 1 is covered and lightly pressed on the food 4. Then, as shown in FIG. The upper surface of the package can be covered with a transparent wrap film 1.

As mentioned above, the lower surface of the packaged food 4 is in contact with the aluminum foil 2, so if the packaged food 4 is delivered into the freezing chamber, the rapid freezing effect is greater than when it is packaged with the cling film 1 alone, and the taste of the food is improved. It helps to prevent the deterioration of the temperature and eliminates the need for metal spaces for quick freezing.

Moreover, since the upper surface of the food 4 is covered with the transparent wrap film 1, it has excellent adhesion to the food 4 and eliminates residual air inside, thereby preventing oxidative deterioration of the food 4.
Combined with the quick freezing effect, this not only makes it possible to retain the taste before freezing, but also allows the contents of the package to be checked from the outside, which is extremely convenient.

Furthermore, a packaging box 3 is wound into a roll shape having a width of about 20 to 40 cm and has a predetermined length and is equipped with a blade capable of cutting in the width direction.
Because it is stored inside the film, it can be used easily like conventional cling film, making it especially effective for frozen storage.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of a rolled composite sheet, Fig. 2 is a side sectional view, and Fig. 3 is a simplified sectional view showing the state of use. It is a diagram. 1 is cling film, 2 is aluminum foil, 3 is packaging box, and 4 is food.

Claims (1)

[Scope of utility model registration request] A transparent wrap film 1 and an aluminum foil 2 are peelably polymerized, wound into a roll having a predetermined length with a width of about 20 to 40 cm, and housed in a packaging box 3 that can be cut in the width direction. A composite sheet for food packaging.