JP2981501B2 - Tray for packaging bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to hail, delicacy,
The present invention relates to a tray used as a core material for packaging products such as snacks, glue and the like, as well as vegetables and daily necessities packed in small bags.

[0002]

2. Description of the Related Art Putting a tray molded of synthetic resin into a packaging bag of relatively fragile goods such as hail, delicacy, snacks, glue, etc., and adjusting the appearance of the goods when displayed (shape preservation) Has been done. An irregular pattern is formed on the tray at the time of molding, so that the product is hooked on the convex part, the bag moves by vibration during transportation, or falls when it becomes vertical for display and falls to the bottom of the bag. I'm trying not to get stuck.

[0003]

A conventional tray is made separately from a bag body (hereinafter referred to as an exterior). Therefore, apart from the exterior, material costs, molding costs, especially expensive molds are required,
In addition, due to the high bulk, distribution costs become enormous, and all of these are reflected in the production costs. In addition, in recent years, strict conditions have been put on the material of packaging itself from the viewpoint of pollution problems and environmental protection. It has developed into legal sanctions.

[0004] Such a tendency is particularly severe in Europe and the United States, and there are already legal regulations on the volume, weight, material and the like of industrial waste and household waste. Furthermore, the ISO standard is scheduled to be implemented in Europe in 1997, and it is said that consumers are obliged to immediately dispose of wrapping paper and packaging tools in prepared containers at stores. At present, the recycling law requires traders to collect trays. Collection of trays requires separation of trays and exteriors, but conventional synthetic resin molded trays are large in both weight and volume, and
The bulk is a burden for consumers. In any case, dealing with product packaging has become a major issue not only for manufacturers and households, but also for national and local governments. Nevertheless, it is difficult to completely abolish product packaging from the standpoint of maintaining the commercial value, and trays are no exception.

[0005]

Under these circumstances, the present invention realizes the reduction of industrial waste and household waste, which does not violate the ideals of global environmental protection and does not comply with the Packaging Recycling Law. An object of the present invention is to provide a tray capable of performing work efficiently. Therefore, in the tray of the present invention, a cut and raised piece is formed by cutting a film in which a plurality of different films are laminated and integrated. The cut and raised pieces are evenly warped on the same side of the film. The side opposite to the warped direction (one side opposite to the cut-and-raised side) is bonded to one surface of the tray material by heat or another method to integrate them.

[0006] The heterogeneous film may be a hard film or a soft film, and the tray formed by the above method is cut into appropriate lengths and individually placed in a packaging bag,
After the contents are filled, the mouth of the bag is closed by thermal bonding or other known methods. The material of the tray is paper, film or sheet. Unlike conventional synthetic resin trays (which are usually thicker than the exterior), they are not molded, so there is no need for expensive molds and the weight is light. Low bulk and small volume. Films and sheets having a small thickness (usually 100 microns or less) are called films, and those having a large thickness (usually 100 microns or more) are films.
This is in line with industry practice that distinguishes it from

[0007] Even if the contents are caught by the cut and raised piece of the film bonded to the material and the bag is moved by vibration during transportation,
Further, even if the product is held in the vertical direction for display, the value of the product is not impaired, such as falling to the bottom of the bag or making the package unsightly as a result. In addition, since the cut-and-raised piece also serves as a cushioning material, it protects fragile products such as rice crackers and cookies in particular, and has a cushioning function and shape retention by heat-sealing the material paper or film or sheet. Has the property.

[0008]

DETAILED DESCRIPTION OF THE INVENTION A bag according to the present invention is made in approximately three steps. First, the first step will be described. FIG.
In the above, the film 1 is a so-called strong film that does not easily curl. Made of polypropylene or polyester. The film 2 is a film having a low waist which is easily curled and made of non-stretched nylon, polyethylene or shrink film. Thus, the two films 1 and 2 are different films. The number of sheets is not limited to two, but in any case, they are laminated and integrated into a single film 3. An adhesive is applied to the film 1 by an appropriate method, and a solvent is evaporated from the adhesive in a drying step while applying tension, and then the film 3 is laminated and laminated with the film 2 to form a film 3 integrated.

The process shown in FIG. 1 is merely an example. In addition to this method, a film 3 may be obtained by laminating and integrating different films while supplying films from one or more extruders. Good. In the second step shown in FIG. 2, the film 3 is sent out, the material 4 is sent out, and the two are superimposed on each other. Cuts 5 are made as appropriate. When the cut 5 is made, the cut opening naturally warps and becomes a cut-and-raised piece 5 '. The cut-and-raised piece 5 ′ has a tongue-like shape and is uniformly convex on one side of the film 3. The cut-and-raised piece 5 ′ that has once warped is restored to its original warped state even if a load is applied thereto and evened once. Here, a foreign film is laminated
There is a reason for combining them into a single film 3.

When the tray is made of paper, once the cut and raised pieces are leveled, there is an inconvenience that the cut and raised pieces must be raised by hand each time when bagging. The shape of the cut 5 can be selected from various shapes such as a petal shape, a triangular shape, and a square shape, in addition to the arc shape. In short, it is only necessary that the cut-and-raised pieces 5 'be convex on the same surface of the film, and it is preferable that the design change is given to the packaging. When the cut-and-raised piece 5 ′ is warped and convex, the contents can be prevented from being hooked on the bag and falling to the bottom even when the bag is turned upright to be shifted or accumulated. Immediately after the cut 5 is formed in the film 3, the opposite side of the film 3 is overlapped with the material 4 and the two are bonded together by a known method in a bonding step 6 to be integrated. At this time, in order to ensure the adhesion between the two, a linear heat seal portion 8 is formed in the width direction of the material 4.
Is provided.

Next, the raw material 4 is cut to a predetermined length in a cutting process section 7, and becomes a single tray 4 'shown in FIG. In the example shown in FIG. 4, the cut and raised piece 5 'is formed in a triangular shape. Further, each edge of the tray 4 'can be used by being folded inward. The sheet can be supplied in a roll form without cutting. Packing of goods is performed by each trader in the same manner as a conventional tray. What is supplied in roll form can also be put on an automatic packaging machine. Even if the packed product is caught on the cut-and-raised piece 5 'and shakes during transportation, the bag is prevented from dropping and accumulating at the bottom of the bag even if the bag is turned upright for display.

[0012]

According to the present invention, even if the cut-and-raised pieces 5 'of the tray are leveled while the trays are being transported and stored, they are easily restored, so that it is not necessary to warp each time when bagging. . Since the cut-and-raised piece 5 'is highly flexible, the cut-and-raised piece 5' also plays a role of a protective cushion when the contents are easily broken, such as rice crackers and glue. The material of the tray is ordinary paper or non-polluting film or sheet, so the energy at the time of incineration is extremely small compared to the conventional synthetic resin tray, and the bulk is 1/2 to 1/10 of the conventional tray. In addition, since the weight is light, it can contribute to the reduction of distribution costs. The fact that the bulk and weight are low does not require any trouble even if it is separated and collected, and there is no need to separate and collect, especially if it is of the same quality as the exterior. In any case, it can be treated as general household garbage, and in particular, can be disposed of by incineration as ordinary garbage.

[Brief description of the drawings]

FIG. 1 is a process diagram schematically illustrating an example of a method for forming a film 3;

FIG. 2 is a process diagram schematically illustrating an example of forming a tray by combining a film 3 and a material 4;

FIG. 3 is a plan view showing a state in which a notch 5 is provided in the film 3;

FIG. 4 is a perspective view showing a finished tray 4 '.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 First film with strong waist 2 Second film with weak waist 3 Third film in which films 1 and 2 are laminated and integrated 4 Material 4 ′ Tray 5 Cut 5 ′ Cut-out piece 6 Adhesive processing unit 7 Cutting Process part 8 Heat seal part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B65D ⁶ /00-13/02 B65D 23/00-25/56 B65D 77/26

Claims (3)

(57) [Claims] 1. A cut 3 is formed in a film 3 in which a plurality of different films 1 and 2 are laminated and integrated to form a cut-up piece 5 '. Characterized in that they are integrated and cut into appropriate lengths. 2. A cut 3 is formed by making a cut 5 in a film 3 in which a plurality of different films 1 and 2 are laminated and integrated, and the opposite cut-and-raised piece side is adhered to a material of a tray. A tray for sheet-like packaging bags, characterized by integrating the above. 3. The packaging bag tray according to claim 1, wherein the different films 1 and 2 are hard and soft.