JPS6090130A - Can-shaped vessel - 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 Honmaruaki uses INL in the container, especially thin aluminum (A7).
It is made of a multilayered plastic base material using foil, and can be used as a container for canning containers, etc., and can be retorted and stored for long periods of time. The contents of lj! JB Concerning a container that has good contact with a cross section of self-containing material.

Traditionally, metal cans (tin cans) have been used in large numbers on the market as base containers, but these have been on the decline in recent years. This is said to be due to the characteristic coldness of 1 can (1q), lack of association, deterioration of taste for products, and problems with energy. , a container without the above defects is installed, and Aj
' There are plastic counterfeits on both sides of the foil (multi-layered)
・The container made using Rlum is part of this process.By the way, the container made of Rlum is -3°, which is a stylistic object of 5σζ origin from a flat multi-noise film. In order to mold a vessel, it is necessary to perform some kind of processing to transform it from two-dimensional to three-dimensional.

One of the conventional methods is a method called B7 Nl2 drawing. In this method, the peripheral edge of the film (1) above is clamped to the supporting joint, pressure is applied to the film from above, the film is stretched (stretched) downward, and the contents can be stored. The depth part is 1'1-ru'
This is a method of constructing the main body of the g-container, and is usually performed by press cold rolling.

However, since this method stretches a multilayer film, kl? The thickness of b becomes nonuniform, and pinholes and cracks are likely to occur.Therefore, it is difficult to use thin AJ foil, and it is unavoidable to use thick Al 76, which is usually about 60 to 100 μm. This makes the product cost of the can container expensive. Also A
Z? Since it is a method of stretching h, it has a deep meaning! T! ′
:The problem is that you can only create i and get pregnant and only create shallow things.

On the other hand, as a method for making a three-dimensional container, such as a rectangular container body, from a flat multilayer film, it is also possible to cut out appropriate parts of the film and fold the flaps provided on the film inside.However, When using this method (when the opening of the film comes into contact with the contents of food etc.)
Therefore, from the viewpoint of food hygiene, it is preferable 1. It has the disadvantage of being ugly.

The object of the present invention is to eliminate such a V÷1h point.
: Our objective is to provide 9TFI bags such as retort pouches and standing pouches (but not to provide 9TFI bags such as retort pouches and standing pouches). In particular, it is possible to use AJ, that is, to press the front of AJ to the minimum thickness, and to provide a base machine in which the A/ foil does not stretch or crack. ,
It is also a three-dimensional v-heavy container body that is formed from a flat two-dimensional multilayer base material without producing any cracking sound.
Our goal is to provide containers for all types of customers. Another object of the present invention is to prevent the cut surface of the multilayer base material from coming into contact with the contents of the can such as food.
To provide a base container that is easy to print, can be fashionable, and does not cause problems such as fatigue in the taste of food or problems with taste. Furthermore, another object of the present invention is to use a resin that can be melted in a hot bath for a multilayer base material, and to form a closed container by layering the container body and the lid tightly by bath melting.
To provide a whole container that can be retorted, has a gas barrier, and does not withstand long-term storage.

Furthermore, another object of the present invention is thin metal? ? Using 3,
Complete combustion is possible.

Our objective is to provide a base container that can eliminate the problem of can pollution. Other objects of the present invention will become clear from the following description of the present specification and drawings.

The members of the Kinen group have worked diligently to create a three-dimensional 31-body container that can meet these demands from two-dimensional poly/[lli materials; How should we deal with the distortion that occurs during shaping (remainder from multi-layer inspection), and how should we create a container in which the distortion occurs in a certain position with good clarity and is collected in its proper position? The basic problem is how to create a container that will not crack even when used with dirty kl'R1.
I ran into a tricky problem.

Does the present invention solve this problem? The middle 1tfi layer is 40μ and i'l:1.
Heat bath on both sides or one side with gold foil layer - LTJ function
A container body consisting of at least two or more layers of Tanoyo M41 having a J oil layer and a multilayer base having at least two or more layers, the intermediate layer being a gold layer and having a resin layer capable of heat bathing on at least one side thereof. It consists of a basin made of wood,
011 The container body is formed from a flat multilayer base material into an M-shaped container body, and the remainder of the multilayer base material generated at that time is folded into the part of the container body that forms the cutout, and the relevant Either the folded part and the multi-layer 65 material constitute a triple structure, or the excess is formed into vertical wrinkles on the corners of the container body.
The present invention relates to a Hebei metal foil multilayer resin can container having a uniform thickness.

Next, an example of the Kinei 8IJ will be described with reference to the Ichikawa I.

FIG. 1 shows the slanted wall of the container body (square container body) constituting the container of the present invention. In Figure 1, 1 contains the contents (
The storage section 1 consists of a bottom plate (wall) 2 and side plates (walls) 3 erected on the four sides of the bottom plate. Further, in FIG. 1, reference numeral 4 denotes an M portion, and the shoulder portion 4 is connected to the upper end of the side plate 6 and protrudes in a direction substantially perpendicular to the side plate.

Further, Fig. 2 shows a developed view of the container body shown in Fig. 1.

The symbols in FIG. 2 correspond to those in FIG. 1. That is, 1'
is the part that constitutes the storage part 1 of the container body, and the bottom plate 2 of the container body is 4M ) Jl part 2 and the container body is 1ll.
It consists of a portion 3' constituting the IL plate 5, and a portion 4'
is a portion that forms the M portion 4 of the container body. Note that these 1' to 4' will also be referred to as a storage section, a bottom plate, a side plate, and a shoulder section, respectively.

In the container main body according to UAIc for books, the side plate 3' is bent inward along the fold line 5, and the side plate 3' is erected so as to be continuous with the periphery of the bottom plate 2'.
A shoulder portion 4' connected to 1lltl &5' is bent outward τI along a fold line 6 in a direction substantially perpendicular to the side plate 3'. What is important in the present invention is that from the Ta-no-clam base material, which is shown in the Ji direction view in FIG.
'f Distortion that occurs when the container is molded is concentrated in the portions forming the corners (parts of each corner) 7°El, 9.10.

That is, as mentioned above, in order to make a three-dimensional (six-dimensional) container from a flat (two-dimensional) multilayer base material, there will inevitably be a surplus of the multilayer base material.
A, 1'2B, 13A.

13B, 14A, and 14B are the remainder of the multilayer base material.

In the present invention, the multilayer base material is folded at some of the corners (the four corners in FIG. 2). Multilayer zh U'
Let's take the remainder 11A as an example. That is, in FIG. 2, the remainder 11A of the multilayer base material is folded along the crease line 15 toward the Ta-no-Mayasu material 16 side.

At the same time, the multi-J base material 17 is folded along the fold line 1B to the multi-J base material 1.
Fold it to the 6th side. In this way, the multi/M group 4'J' 11
By folding A, the remainder of the multilayer base material (folded part) 11
The surface of A is joined to the cloth of the multilayer base material 16, the surface of the remainder (folded part) 11A of the multilayer base material is joined to the surface of the multilayer base material 17, and the folded part 1iA and the multilayer base materials 16, 17 are connected to each other. A three-point structure is constructed. Although the folded portion 11A is illustrated above,
The folding part of 11B and below is folded in the same way, and the folding part of 3M
Configure Senzou.

In this case, the corner part 7 is 11A.

A folded part of 11B is formed, and the following corner part is 8°9.1
0, two r folded portions are formed in each case. However, in the container body of the present invention, the side plate 3' is bent along the crease 5, the side plate 4' is folded along the crease line 6, and the multilayer base material is folded, for example, along the crease lines 15 and 18. They are molded at the same time.

FIG. 6 is a perspective view of the male mold used for this simultaneous molding, and this male mold 19 has a fermentation section that matches the depth, shape, size, etc. of the container body, excluding the thick wall 20. 21 is engraved. A multilayer base material punched out from one continuous multilayer 1 to a size sufficient to construct a container body is placed on this male mold.

Then, a female mold 22 shown in FIG. 4 is placed on this multilayer base material, and the female mold 2 is pressed.

The multilayer base material is easily formed into a 3-W device body as shown in FIG. 1 by making a line in the groove 21 of the male mold 19. At this time, what is important is that the female mold 19 and the female mold 22 are designed to be safe.

The inventors have continued to study the knots, small fish type 21 and female mold 1.
There is almost no clearance between the straight holes 26 and 24 of 9, and the wall of the straight tβ 26 of the groove 21 of the NIJ Chil Hanagasa mold 19 and the straight group 2 of the female mold 22.
4 side wall surfaces are in contact with each other, but the I of the valley corner group 24.25, 26.27 of the sea part 21 of the noise M19 and each corner tJμ28, 29, 50.31 of the female mold 22 is
It turns out that it is better to fit the clearance to EJ. The 5th section is an illustration of this Senshu, and in the diagram there are 52
, 55, 54.55 respectively indicate the clearance of a part of each corner between the male cap mold and the female mold.

By placing the multilayer base material on top of the male mold in this way and then placing the female mold on top of the multilayer base material, the multilayer base material slides within the groove of the male mold. .

The multilayer base material can be easily bent to form the storage part of the container body without requiring any particular bending process, and since a clearance is provided at a portion of each corner, the multilayer base material can be easily bent at this location. The remainder of the material is collected and folded for ease as shown in FIG.

A container body can be configured.

During the above molding, a part of each corner of the multi-layer base material punched from a series of continuous multi-layer base materials is cut into a serrated shape 36, for example, as shown in FIG. When folding the remainder 11A and IIB, the shoulder edge line 37A
, 38A.

39A; It is best to align 37B, 38B, and 39B in line. The same applies to the folding of a portion of each other corner.

On the other hand, in the container body of the present invention, the remainder of the multilayer base material may be collected as vertical wrinkles at the corners of the container body. Such a container body can be molded using the mold shown in FIGS. 6 and 4 in the same manner as in the case of the third structure.

FIG. 6 shows a container body made up of the remainder of the multilayer base material with wrinkles in the continuous direction, and the plate diagram shows an example in which wrinkles are arranged at the lower part of the shoulder 4, but JN It is also possible to have 8 vertical magnets, including 4.

In the container of the present invention, the distribution of the multilayer base material is folded,
It is also possible to construct a three-layer 47q structure with a folded boiler and a multilayer base material, or to use the container body made by collecting the above-mentioned surplus as Sakagata Dojiji as it is, and attach a lid to the upper part of the container body. The three-claw structure is constructed by using the hot bath meltable resin layer used for the multilayer base material that constitutes the main body, and each multilayer/1lli2! ! : The material is heat-set to the extent that the metal foil does not stretch, or the resin on the surface of the multi-layer spring material is flowed to the extent that the metal foil does not stretch, using heat press etc. to smooth out the wrinkles.
It is better to have a smooth surface. By applying such heat setting, the appearance becomes more preferable, and the container body can be made stronger.

The container body according to the present invention adopts the above-mentioned structure, and its forming method is different from the conventional stretching method because there is no stretching of the Al foil, so it is constructed with a uniform thickness and does not cause stretch cracks.

Moreover, the container body can be made of a multilayer base material with a thin Al material as an intermediate layer. In addition, since it is made of thin AJ foil, complete combustion is possible, eliminating the problem of can pollution.
Can be erased. Furthermore, since the film is not cheaply cut, the cut surface of the film does not come into contact with food or the like. Furthermore, a deep storage section can be formed.

When forming the above container body, lines are formed in advance on the multilayer base material by hot stamping or the like at the crease lines 5, 6jis, ia (other crease lines are included, although not shown). It is also possible to make a notch to facilitate the creation of the container body.

Further, in the above embodiment, a rectangular can container is exemplified, but containers other than rectangular, for example, equilateral or hexagonal containers may be used.

Next, to explain the material forming the container body according to the present invention, the first layer is made of gold and has a heat-meltable resin layer on both or one side. A multilayer base material with two or more layers is used.A variety of metal foils can be used, but for the purpose of the present invention, A/'
Foil is exemplified as a typical example. The thickness of the metal foil is less than 40μ, and since there is no stretching process in the present invention, the thickness of the metal foil is
The thickness of the base material, especially gold foil, is uniform, and by using a thin foil, the container body can be constructed even with a thickness of 7 μm.

#The resin constituting the LI fat layer can be made from various resins, but as mentioned above, in consideration of the case where the container body is used by heat setting, we recommend using a resin that can be heat set.
It is preferable to use a resin that is melted by heat and capable of thermal bonding (heat sealing).Also, the m body is attached to the container body by thermal welding (thermal bonding) as described later.

It is appropriate that the resin layer (inner layer) on the side of the container body that is bonded to the lid in a heat bath be made of a resin that can be melted by heat and can be thermally bonded (heat-sealed) to the lid. be.

Preferred examples of the resin constituting this inner layer include synthetic resins such as polyolene-based synthetic resins such as ethylene propylene and pyrene. The M taste of the resin layer is not particularly limited, but for the inner layer it is preferably 4oμ or more, more preferably 5o to iooμ.

Next, the lid constituting the container of the present invention will be explained.

The lid body is made of a multilayer substrate having at least two or more layers having a heat bath meltable resin layer on the lower side of the intermediate layer. As the material, the same material as the multilayer base material constituting the container body is used.

The lid is attached to the container body by melting the inner layer in a hot bath. Therefore, the resin layer of the container body 11111 of the lid is melted by heat. It is preferable that the container be made of a resin that can be thermally bonded to the container body.

FIG. 7 shows an example of a perspective view of an unexploded container consisting of the container body 41 shown in FIG. 1 and the lid 42, and FIG. Ta.

As shown in FIG. 7, the lid 42 has a peripheral end 46 of the lid.
is sealed with the waste portion of the container body 410 by heat sealing or the like to form a closed container.

Note that FIG. 7 shows a state in which the needle is partially opened.

This sealing is performed by melting the hot meltable resin layer (inner layer) 44 of the container body and the inner layer 45 of the lid 42 in a hot bath, as shown in the eighth quotient.

Regarding the lid body 42 in the embodiment shown in FIG.

The intermediate layer is a metal foil 46, and one surface of the metal foil 46 has the resin layer 45 which can be melted in a hot bath.

In addition, an example of a lid made of 4R of a sand-inch structure multi-layer base material having a resin layer (outer layer) 47 which can be melted in a hot bath is shown, but the outer layer 47 may be omitted. can.

Similarly, in the embodiment shown in FIG.
Although an example of a container body made of a multilayer base material having an i'7 (outer layer) 49 has been shown, the outer layer 49 can also be omitted.

In the container of the present invention, contents such as food are filled into the storage portion of the container body, and a lid is attached to the container body by heat melting.
By sealing it tightly, retort processing is possible, and since it uses 111g gold foil, it has excellent gas barrier properties.
It can be suitably used as a motherboard container that can withstand long-term storage.
In particular, it opens up a new field as a canning container.

Next, the results of a retort test performed on the mother container of the present invention will be shown.

The retort test was conducted under the following conditions, and the square can container body shown in FIG. 1 was filled with water, and a lid was attached to form the horn container shown in FIG. 7.

Retort processing conditions Warm temperature: 120t: 20 minutes Pressure: 2 to 6 kP/Crr? Also, the multilayer base material constituting the container body is C.P.P.
) [: MFR 1.1, ethylene content M9wt%] was laminated on both sides of the multilayer base material.

AJ foil and the tree sword effect on both sides) t no no no □, i taste is,
ijJ Jii J53 (outside) Δ ) / AJ Hakunoso / Resinnoso (inside) So ) -60μ / 15μ770μ
Met.

Furthermore, Tanosojo I, which constitutes the lid, is made of a multilayer base material made by laminating a resin layer made of CPP similar to the above on one side of A4 foil, and attaching polyester resin A to the other side. Using.

AJ foil and its both sides: The thickness of the tlJit layer is 1ξ.
4RIJj effect M (outer layer) = 70μ/12μ/12
It was μ.

The results are shown in Table 1, and even when using Aj' quenching, there were no pinholes and no peeling occurred in the product, which required m+1 light minutes for retort processing.

In addition, as shown in Table 1, the volume of the charge bond water was changed from a full (maximum filling) of 150 m1 to 50% of 75 m1, but it was able to withstand rupture due to air and was sufficiently strong in terms of strength. .

Table 1 also shows the results of tests on products in which creases were formed in the folding mode, and similarly good results were obtained.

Table 1: OK: No bottle holes occur, retort processing possible without peeling * Slip processed product NG: Pin holes, cracks generated According to the present invention, a base container with the above-mentioned advantages has been provided, but only one length is required. In such a base container, since plastic is used as a constituent member, it is possible to provide a base container that does not have problems with taste or odor when it comes to food, and is easy to print and has fashionability. We have provided a motherboard container that can be used for a variety of purposes.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, and 12I is a perspective view of a container body according to the invention, and FIG. 2 is a developed view of the container body according to the invention. Figure 3 is a picture of the Noise Maro used in the production of rice cakes published by the main brother Akira, Figure 4 is a perspective view of the female gold star, and Figure 5 is a male mold of the female gold star. A plan view showing the staff in the case of making money,
FIG. 6 is a perspective view showing another embodiment of the present invention, FIG. 7 is a perspective view of the container of the present invention, and FIG. 8 is a sectional view thereof. 11A, 11B, 12A, 12B, 13A, 13i1,
14A. 14B...Remainder of multilayer base I (prayer capital) 40...Longitudinal wrinkles 41...Container body (multilayer base material) 42...Spiritual body (multi-layer base material) 44...・Container body resin/m (inner layer) 4 s-Bg
If HJIli Noso (inside)? j ,) 46... Reduction metal 9゛^ layer 47... Lid body resin layer (outer layer) 48... Container body metal foil layer 49... Container body resin layer (outer layer) *) Patent applicant Showa Denko K.K. Representative Patent Attorney Yoshihiro Sato

Claims (1)

[Claims] The intermediate layer is a metal foil layer with a droplet of 40 μm, and the container body is made of a multilayer base material with at least two or more layers, and the intermediate layer is a metal foil layer on at least one side of the container body. A small (both 2) with a heat-meltable porridge layer
)t! The container body is formed from a flat multilayer base material into a three-dimensional container body, and the gold of the multi-layer base material generated at that time is the law of nature? ] - Fold into the corner of the container body 4, the convex fold group and the multilayer base material are three pieces (one piece (p)
Alternatively, a thin metal recessed multi-layer 4 (A fat matrix container) having a uniform thickness is characterized in that the front ID metal is gathered as vertical wrinkles in the corners of the container body.