JPH0630042U - Fiber drum for liquid packaging - Google Patents

Abstract

(57) [Summary] [Purpose] Transport and store liquid products on fiber drums. A fiber drum in which a lid plate having a pouring port and a container body composed of a body and a bottom plate are integrated by a watertight structure with the lid plate and the container body, and the container body and the bottom plate, respectively. A fiber drum for packaging a liquid material, characterized in that the inner surface side of the lid plate and the container body is a liquid material storage portion.

Description

[Detailed description of the device]

[0001]

[Prior art]

 Currently, about 5 to 200 liters of foods, chemicals, chemicals, dyes or low-viscosity liquids such as volatile substances and highly viscous liquids such as adhesives (hereinafter referred to as liquids). The products are transported and stored mainly in metal cans, such as oil cans and drums, which are processed from metal plates, and have a highly sealed metal can body, or are stored in a synthetic resin container such as a polyethylene container. ing.

On the other hand, in the case of a fiber drum, since it does not have a water-retaining or water-resistant structure (hereinafter referred to as “water-tightness or water-tight structure”), a liquid product or the like is stored. , The liquid bag or similar product is stored and sealed after the inner bag is inserted into the drum and then transported or stored.

Further, FIGS. 6a and 6b are perspective views showing a device of Japanese Utility Model Laid-Open No. 1-147937, in which the aluminum sheet 61 is provided on the inner surface side of a body portion 60 formed by forming a base paper into a cylindrical shape. It shows the body structure of the fiber drum, which is characterized in that

[0004]

[Problems of the prior art]

 Of the above metal cans, the iron drum (filling amount of 100 to 200 liters) has excellent impact resistance and can be stacked to some extent, but it is likely to cause rust and the manufacturing cost is low. There is a problem of being expensive. On the other hand, in the case of composite cans and petroleum cans (5 to 20 liters), there is a problem in discarding or recovering the products, although the cost is low.

On the other hand, in the case of a fiber drum made of all paper, since the fibers of the container body forming the lid plate, the body plate and the bottom plate are not water-resistant, a packaging bag or container prepared separately for the liquid product as described above. It may be stored in the drum after being filled in, which is troublesome and makes it difficult to promote automation.

[0006] Further, in the invention of Japanese Utility Model Laid-Open No. 1-147937, an aluminum sheet is simply superposed on the inner surface side of the fiber base paper forming the body part, and the two are separated by an impact from the outside, and the water resistance of that part is removed. There is a risk that the packing will flow out when the liquid is directly stored.

Therefore, the present invention provides a fiber drum for packaging a liquid material, in which the container main body has a watertight structure with high water retention property, and further, the joint portion between the lid plate and the body has a structure with extremely high sealing property. With the goal.

[0008]

[Means for Solving the Problems]

 The present invention is a fiber drum including a lid plate having a pouring port and a container body composed of a body and a bottom plate, wherein the lid plate and the container body, and the container body and the bottom plate are integrated by a watertight structure. In addition, the inner surface side of the lid plate and the container body is used as a liquid material storage portion.

Further, the liquid material storage portion in the fiber drum made of all paper is formed by a blow container or a synthetic resin bag provided with a mouth portion whose one end is connected to the pouring inlet of the lid plate.

On the other hand, the liquid material storage part in which the container body is made of a water-resistant composite material is composed of a composite material in which fibers are sequentially laminated on the outer layer and a water-resistant sheet such as a plastic film or an aluminum foil is sequentially laminated on the middle layer and the inner layer. In addition, the watertight structure of the body and bottom plate is formed.

[0011]

[Action]

 When the liquid container is the plastic container or bag, the watertightness is perfect, and the container body can be entirely made of paper, so that the conventional box-making machine can be used as it is for assembly. Then, in this all-paper fiber drum, when the product is injected from the pouring port and filled, the product is stored in the container or bag.

On the other hand, when the lid plate and the body, and the joint between the body and the bottom plate have a watertight structure, and at least the body and the bottom plate are made of a water-resistant multilayer composite material, the main structure is Even if the structure is a fiber drum, the liquid material can be stored directly in the container body. In addition, even if the water resistant material in the innermost layer is damaged by an unexpected impact from the outside, it has a multi-layer structure, so the water resistant material in the middle layer also has the function of preventing liquid leakage.

[0013]

【Example】

 FIG. 1 is a perspective view showing an example of the present invention partially broken away, and FIG. 2 is a vertical sectional view of the same. That is, the container body 1 is composed of a body portion 2 and a bottom plate 3, and the body portion 2 is formed by winding thick paper in a cylindrical or square tube shape in multiple layers. Then, the bottom plate 3 is integrated with the body 2 to form the container body 1. Liquid products such as foods and chemicals are mainly stored in the container body 1 at a factory and used for transportation and storage.

The container body 1 is formed by forming a fiber in which base paper is laminated in multiple layers into a cylindrical or square tube shape, and is provided with a flange 3a of the bottom plate 3, a reinforcing ring 3b arranged inside thereof, and a lower end 2a of the body portion 2. The above three items are integrated by an appropriate connecting means such as sewing with a sewing machine, an adhesive, or a stitch. The reinforcing ring 3b prevents the bottom portion from becoming fragile due to rolling when handling the fiber drum.

Further, the cover plate 4 is provided with a pouring port 5 at one end thereof, and the cover plate 4 also has the flange 4a, the reinforcing ring 4b arranged inside thereof, and the body portion 2 like the bottom plate 3. The upper end of the machine is connected by an appropriate means such as sewing with a sewing machine.

From the pouring port 5, one end of the opening 5a of the plastic bag or container B disposed in the container body 1 is projected from the lid plate 4, and the opening 5a is packed or a retaining ring (not shown). It is fixed to the lid plate 4, and the lid plate 4 is further provided with a cap 6 and an air bleeding portion 7. As an example, this cap is screwed into a screw 5b formed on the outer periphery of the mouth 5a to seal the container body 1.

The cap 6 is also provided with a screw on the inner circumference so that an inner plug can be placed in the mouth portion 5a, and the upper end of the cap 6 is positioned lower than the upper end of the flange 4a. Is forming.

[0018] In use, like a normal fiber drum or drum can, the cap is opened to allow not only granules and powders but also filling materials such as liquids to be put in and taken out from the pouring port and to be vertically stacked. You can

Next, FIG. 3 is a sectional view showing another embodiment. The container body 10 is hermetically sealed by a joint portion 15 which is provided with a sealing material 14 at a joint between the lid plate 11 and the body portion 12 and between the body portion 12 and the bottom plate 13 and is wound and fixed as shown in the drawing. Note that the lid plate 11 is provided with an inlet / outlet port 16 equipped with a cap and an air bleeding portion 17 at a position lower than the height of the coupling portion 15 as in the case described above.

The fiber 20 constituting the container body 10 has a multiple structure in which a base paper, a synthetic resin, an aluminum film and the like are alternately laminated, as shown in an example in FIG. That is, the fiber 20 is a composite material in which a polyethylene film 21, a liner base paper 22, a polyethylene film 23, an aluminum foil 24, a polyethylene film 25, and a kraft base paper 26 are sequentially laminated from the inner surface side of the body to add water resistance. .

In addition, the fiber drum F is made of a barrel portion 12 in which the fiber 20 is formed in a cylindrical or square tube shape, and a lid plate 11 and a bottom plate 13 which are cut in accordance with the shape of the barrel portion. It is assembled by a can machine.

Further, in the joint portion 15, one end of the body portion 12 and the cover plate 11 and one end of the auxiliary ring 18 are entwined with each other in a spiral shape, and a sealing material 14 is arranged between the both portions for sealing. It is a structure. This joint structure is similarly used for the body 12 and the bottom plate 13.

Further, the sealing material 14 is a foaming material having a thermoplastic synthetic resin as a main component and a plasticizer mainly containing a wax added thereto. By the way, the thermoplastic resins are roughly classified into those containing polyvinyl chloride, which is heat-expandable, as the main component, and those containing ethylene vinyl ascerate, which is expandable at room temperature, as the main component.

Note that the contents filled in a normal fiber drum are limited to fruit grains or powders found in additives such as foods and synthetic rubbers. (40 ° C or lower) is presumed. Therefore, for example, when the air temperature rises in the summer, there is a risk that the seal part will be destroyed by the high temperature.

On the other hand, there are cases where an antiaging agent or the like that generates a high temperature of about 100 ° C. is stored. Therefore, the sealing material 14 of the present invention is an improvement of normal temperature foaming resin so as to be compatible with high temperature filling, and its constitution is to increase the heat resistance temperature to 80 to 100 ° C. with rubber as a main component (about 90%). ing.

By the way, in the fiber drum F of the above-mentioned embodiment as well, the cap can be opened and the filling material such as the fruit grains and the liquid substance can be poured in and out in the same manner as described above, and the cap is positioned lower than the upper end of the lid plate. Therefore, multi-tiered stacking can be performed.

Next, FIG. 5 shows a fiber drum F showing another embodiment, and particularly shows only the opening structure thereof. The structure of the container body 30 is the same as that described above, and a description thereof will be omitted. By the way, the upper portion of the body portion 31 is bent and an auxiliary ring 32 is provided on the outer periphery thereof, and a sealing material is provided on the upper portion of the auxiliary ring. 33 are arranged.

The lid plate 34 is made of metal, and a fitting portion 34 a having a groove for sandwiching the upper end portion of the body portion 31 is formed on the peripheral portion thereof, and the sealing material 33 is provided inside thereof. It fits.

The lid plate 34 is locked to the body portion 31 by a stop band 35, so that the lid plate 34 can be opened and closed as needed when used. Therefore, it is possible to select whether or not the cap is required to be provided depending on the purpose. If a mold release agent is applied to the inner surface of the body, a liquid such as a hot melt adhesive can be filled.

Further, some fillings have a considerably high temperature (over 200 ° C.), and in that case, a heat resistant synthetic resin is provided on the inner surface of the container body. By the way, as an example, a trade name “TPX” (Mitsui Chemicals, Inc .: melting point temperature 240 ° C.) containing triolefin as a main component is used.

Further, although not shown, it is needless to say that the joint portion and the cover plate may be fixed by directly heat-sealing the joint portion without applying the sealing material.

[0032]

[Effect of device]

 The invention of the present application is a container provided with a liquid-like storage unit that adopts a so-called water-tight structure that does not leak, and can easily store not only liquid foods, pharmaceuticals or chemicals but also viscous adhesives. Yes, automation is possible. In addition, it is cheaper than an all-metal container, does not need to be recovered, and can be easily post-processed. Furthermore, by enabling multi-stage stacking, space can be effectively used, which is useful for industrial use. It is a device.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention with a part cut away.

FIG. 2 is a vertical sectional view of the same.

FIG. 3 is a cross-sectional view showing another embodiment.

FIG. 4 is a cross-sectional view showing an example of a fiber.

FIG. 5 is a sectional view showing a part of another embodiment.

FIG. 6 is a perspective view showing a conventional example.

[Explanation of symbols]

 1 Container Main Body 2 Body 3 Bottom Plate 4 Lid Plate 5 Pouring Inlet 6 Cap 7 Air Bleed Part 10 Container Body 11 Lid Plate 12 Body 13 Bottom Plate 14 Sealing Material 15 Coupling Port 16 Pouring Port 17 Air Venting 20 Fiber F Fiber Drum B Bag or container

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] February 17, 1993

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 4]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 5]

[Figure 6]

Claims (4)

[Scope of utility model registration request] 1. A lid plate having a pouring port, and a container body composed of a body and a bottom plate, wherein the lid plate and the container body,
A fiber drum for packaging a liquid body, which is a fiber drum in which a container body and a bottom plate are integrated by a watertight structure, and the inner surface side of the lid plate and the container body is a liquid body storage portion. 2. The fiber drum for packaging a liquid material according to claim 1, wherein the liquid material storage portion is a blow container or a synthetic resin bag having an opening whose one end is connected to a pouring inlet. 3. A liquid body containing portion is a body and a bottom plate formed of a water resistant composite material in which an outer layer is a fiber, an intermediate layer is a water resistant film and a fiber, and an innermost layer is a water resistant film. The fiber drum for packaging a liquid material according to claim 1, wherein a watertight structure by packing or heat sealing is applied to a joint portion between the body portion and the bottom portion. 4. The fiber drum for packaging a liquid material according to claim 1, wherein the lid plate is a metal lid which is provided with a sealing material at a fitting portion with a body portion and which can be freely opened and closed.