JPS6013640A - Sealing type prefabricated vessel and manufacture thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sealed assembly container and a method for manufacturing the same, and more particularly to a container for containing liquid food and a method for manufacturing the same.

Paper containers currently known as this type of container have λθO
07,10100O,2000
There are - and medium-sized ones with a spout on the top. Small-capacity products are used within a short time after opening, so there is no problem, but large-capacity products may be used for a long time after opening, depending on the type of liquid food, such as soy sauce, wine, and bonito stock. If you do so, the color, aroma, taste, etc. may become unpleasant due to oxidation in the air.

Furthermore, when pouring liquid food from a paper container into another small container, such as a cup, the pressure inside the paper container decreases as the liquid food flows out, and the liquid food may not come out smoothly.

Recently, so-called bag-in-box type paper containers, in which an inner bag is loaded inside the outer box, have also come into use. However, in either case, the manufacturing process of the paper container is complicated and the cost is high, or the liquid Food filling and packaging operations become complicated, and as a result, product costs are affected.

SUMMARY OF THE INVENTION An object of the present invention is to provide a container and a method for manufacturing the same, which can be carried out without substantially changing the conventional paper container manufacturing and filling process, and which can ensure smooth outflow of liquid food in the container and prevention of oxidation by air. Our goal is to provide the following.

In order to achieve this object, the sealed assembly container according to the present invention includes a container-forming plate member cut into a predetermined shape and size, and a container-forming plate member that is impermeable to liquids and gases, is flexible, and has at least an outer peripheral edge. The part is made of a film that is liquid-tightly and airtightly fixed to the assembled joint part of the plate-shaped member or the surrounding part adjacent to it, and when the contents in the container are taken out from the outlet, the container and its inside are The feature is that air can be introduced between the film and the film that is in contact with the film.

In addition, the method for manufacturing a sealed assembly container according to the present invention involves cutting a plate-like member made of cardboard or the like according to the shape and dimensions of the container, forming a bend line and a hole for attaching a spout when assembling the container; A film that is impermeable to liquids and gases, has flexibility on one surface of the formed container-forming plate-like member, and has approximately the same shape and dimensions as the container-forming plate-like member, has at least the outer peripheral edge thereof liquid-tight and air-tight. The invention is characterized in that it is assembled by bending the container-forming plate-like member along the bending line with the surface to which the film is fixed to the inside. I will explain further.

FIGS. 19 and 2 show a developed view of an embodiment of the sealed assembled container according to the present invention, with FIG. 1 showing the outside portion of the container and FIG. 2 showing the inside portion.

This container is made by cutting base paper l coated on one side with a film that is generally impermeable to liquids and gases as shown in the diagram, and cutting it vertically and horizontally according to the intended shape of the container.

It is assembled by bending along each bending line formed diagonally. 3 is the plug installation hole, ≠ is the vent,
Although these are not shown, they are sealed.

As shown in Figure 2, on the surface of the base paper l which has been kneaded with a film that is impermeable to liquids and gases, it is flexible and impermeable to liquids and gases, leaving almost the entire surface, i.e., the bonded area around the periphery, as shown in Figure 2. film! The film j is liquid-tightly and airtightly fixed around the entire periphery and the periphery of the spout attachment hole 30 as shown schematically by dotted lines, so that the film j substantially covers the inner wall of the container when the container is assembled. In addition, instead of coating one side of the base paper l with a film as described above, a relatively strong film similar to the above film is directly applied to the entire periphery of the base paper l, and only along the periphery of the spout attachment hole 3. It may be fixed.

The structure shown in Figures 1 and 2 is usually folded in half with the tensioned side of the film j facing inside, and both longitudinal ends are glued together, as shown in Figure 3. It is supplied to the manufacturing and liquid food filling processes.

The two-fold container shown in FIG. 3 is assembled using a pile-making machine as shown in FIG.

Figure 1 shows the final product in which the upper part of a container filled with liquid food is sealed and the cap is inserted into the capper.

As explained above, the container according to the present invention can be made into a product through substantially the same steps as those for manufacturing, filling and sealing ordinary paper containers.

When using liquid food filled in a container configured in this way, first break the seal on the vent ≠ and the seal on the spout T, then tilt the container and drain the liquid food inside from the spout T. Take it out into a container and use it.

In this case, with conventional paper containers, when the liquid food inside the container begins to be taken out, the pressure inside each container decreases and the food does not come out smoothly, so the liquid food is taken while allowing outside air to flow into the container. p will come out. On the other hand, in the container of the present invention, when the liquid food inside the container is taken out and the internal pressure is lowered, the ventilation log shows that the original Aid t that makes up the container and the film that is glued around almost its entire circumference. Air flows in between. As a result, as shown in Figure 1, atmospheric pressure is constantly applied to the liquid food inside through the flexible film, and the liquid food can be taken out extremely smoothly. As mentioned above, the flexible film easily deforms in response to sharpening of the internal pressure (depressurization), and since it is crimped onto the liquid food, there is almost no inflow of air from the outside, and there is no difference in taste, aroma, color, etc. Quality deterioration due to oxidation is extremely low.

In connection with this, if a check valve mechanism is incorporated into the plug 6, the inflow of air can be effectively prevented.

Furthermore, when considering the container of this invention from a manufacturing perspective, it can be manufactured by simply implementing the manufacturing process of conventional paper containers by simply adding a flexible film that is impermeable to liquids and gases. Moreover, there is no need to store the inner bag inside the outer box during the manufacturing process or the filling and sealing process as in the case of the conventional pack-in 73-unit type, which eliminates the need for inefficient special processes during manufacturing and filling. No need to add.

In the illustrated embodiment, the container-forming plate-like member is made of cardboard, but it may also be made of other suitable materials, such as plastic or metal, and may also be made of perforated, net-like, lattice-like materials, etc. There is no need to provide special ventilation holes.

Further, although the illustrated container is prismatic, the shape of the container can be arbitrarily selected. Furthermore, the plug 6 may be directly fixed to the film j, and a gap may be provided between the plug t and the plug attachment hole 3 of the base paper/paper to serve as an air introduction port between the base paper l and the film j.

[Brief explanation of drawings]

1 and 2 are plan views showing the outside and inside of the container according to the present invention before assembly, FIG. 3 is a view showing the container shown in FIGS. 1 and 2 in a folded state, and FIG. is a diagram showing a container in a filled state, a nest! The figure shows the container in a sealed state as a final product, and FIG. 6 is a cross-sectional view showing the internal state of the container during use. In the figure, l two plate-like members 1.2: the bend is a line,! : film,
6: Mouth plug. Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Scope of Claims] Z A container-forming plate-like member cut into a predetermined shape and dimensions, and a container-forming plate-like member that is impermeable to liquids and gases, is flexible, and has approximately the same shape and dimensions as the above-mentioned plate-like member. , at least the outer periphery of the plate-shaped member is made of a film that is liquid-tightly and airtightly fixed to the assembly joint part of the plate-like member or the surrounding part adjacent thereto, and the contents in the container are taken out from the outlet. A sealed assembly container characterized in that air can be introduced between the container and a film in contact with the inside thereof. The container according to claim 1, wherein the outlet comprises a spout having a check valve mechanism attached to the container. 3. Cut a plate-like member made of cardboard or the like according to the shape and dimensions of the container, and form a bending line and a hole for attaching a spout when assembling the container. A film that is impermeable to liquids and gases, is flexible, and has approximately the same shape and dimensions as the above-mentioned container-forming plate-like member, is fixed in a liquid-tight and air-tight manner at least at the outer peripheral edge of the film. Face inside (
11. A method for manufacturing a sealed assembled container, comprising folding the container-forming plate-like member along a bending line and assembling the container.