JPH04102265U - Composite container - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the occurrence of pinholes due to wear caused by the inner bag rubbing against the inner surface of the outer packaging box. [Structure] A slippery sheet is bonded to at least a portion of the inner surface of the outer packaging box to prevent wear caused by rubbing against the inner bag.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a composite container, in particular a synthetic resin bag inside a paperboard packaging box. The present invention relates to a composite type container consisting of a plurality of groups.

0002

[Conventional technology]

Traditionally, glass bottles and plastic bottles have been used to fill various liquids and distribute them. Plastic molded containers were used. Such containers are filled with liquid. Even when not filled, it maintains a predetermined shape. therefore empty It has the disadvantage of requiring wasted space for transportation and storage.

0003 In view of these problems, a bag-in-box type composite container has been proposed. There is. This type of container is made of synthetic resin inside a packaging box made of paperboard, such as corrugated paper. A plastic bag is placed in the bag, and the opening connected to the bag is inserted into the bag. It is used to fill and drain liquid inside. and when not in use Because it can be folded flat, it does not require space for storage or transportation. , it has an excellent space factor.

0004

[Problem that the idea aims to solve]

However, this type of bag-in-box type compound container is filled with liquid. During transportation, vibrations applied from the outside may cause pinholes to form inside the bag. This pinhole causes liquid leakage. like this Composite laminate material is used to prevent pinholes that can cause leaks. We are taking measures such as using double or triple bags.

[0005] However, special laminate films such as nylon and polyethylene terephthalate The cost of materials increases significantly when using a laminate. Also, the inner bag Making double bags or triple bags not only increases the size of the bag making equipment, but also makes it difficult to make bags. There are problems involving difficult techniques.

[0006] The present invention was made in view of these problems, and it is a double bag or triple bag. A composite type that does not use heavy bags and prevents pinholes from forming. The purpose is to provide a container.

[0007]

[Means to solve the problem]

The present invention is a composite container consisting of a synthetic resin bag placed inside a packaging box made of paperboard. In the container, a slippery sheet is provided on at least a part of the inner surface of the paperboard constituting the packaging box. It is designed to join.

[0008]

[Effect]

When transporting liquid by filling the inner bag of such a composite container, Even if vibration is applied from the outside, the bag will rub against the outer packaging box due to the slippery sheet. This prevents the occurrence of pinholes.

[0009]

【Example】

1 to 3 show a composite container according to a first embodiment of the present invention. The packaging box constituting the composite container is made of cardboard base paper 10 shown in Figure 1. Ru. The cardboard base paper 10 is equipped with four side plates 11, 12, 13, and 14. The side plates 11 to 14 are connected to each other by bending lines 15 so as to be bendable. It has become. A joining piece 17 is attached to the left end of the left side plate 11 via the bending line 16. are bendably connected.

0010 A bottom plate 20 is bent at the lower end side of the four side plates 11 to 14 via a bending line 19. Possibly connected. Also, at the upper ends of the side plates 11 to 14, there are bent lines 21. A cover plate 22 is bendably connected. Also, this cardboard base paper 10 has an inner surface A slippery sheet 23 is bonded to the upper portion of the side plates 11 to 14.

[0011] By using such corrugated paperboard 10, an outer wrapping as shown in FIGS. 2 and 3 is formed. The packaging will be assembled. That is, at the bending line 15, the four side plates 1 1 to 14 are bent together and assembled into a square tube shape. Then, attach the joint piece 17 to the side plate 14. Join the ends. Also, when the four bottom plates 20 are bent at the bending line 19, Then, by combining these, the bottom opening is closed.

0012 Inside the packaging box made of cardboard base paper 10 assembled in this way, there is a synthetic resin. An inner bag 26 made of fat is stored as shown in FIG. And this bag 26 The provided cylindrical opening 27 is a circular opening 28 formed in the lid plate 22, The upper part of this packaging box can be seen through 29.

[0013] Therefore, according to such a bag-in-box type composite container, the cylindrical opening 27 The bag 26 inside the packaging box can be filled with liquid through the bag 26 inside the packaging box. Also bag 2 The liquid filled in 6 is discharged through the cylindrical opening 27. Matako In a composite container such as the one in which the bag 26 inside the packaging box is a flexible polymeric Because it is composed of a lum or sheet, it can be folded flat when not in use. be able to. Therefore, the space factor for storage or transportation when not in use is It will be very good.

[0014] Occurrence of pinholes in bag 26 in a composite container with bag 26 arranged inside As a result of analyzing the mechanism, the pinhole was caused by bending fatigue of the film that makes up the bag 26. It turned out that the main cause was wear caused by rubbing against the cardboard base paper 10. Ta. Furthermore, it was observed that pinholes were concentrated on the top side of the packaging box. It was.

[0015] Therefore, a slippery sheet 23 as shown in Figure 1 is pasted near the top of the outer packaging box. By doing so, we are trying to prevent pinholes. Furthermore, such slipperiness The sheet 23 can be made of commercially available materials such as Teflon, silicone, polypropylene, and kraft. It may be a tape of

[0016] A composite container using a packaging box bonded with a slippery sheet 23 and such a slippery sheet Composite containers using packaging boxes that are not bonded with The occurrence of pinholes was compared. That is, 300 vibrations per minute of 1.5G. A vibration test was conducted continuously for 30 minutes. Then, the compound without the slippery sheet 23 For combined containers, pinholes were observed in 2 out of 8 containers. . On the other hand, in containers to which the slippery sheet 23 is attached, pinholes do not occur. It was O.

[0017] Next, we conducted a test of normal transportation by truck for such a composite container. became. When the slippery sheet 23 is attached, pinholes are applied to 1000 bags. The occurrence of ole was O. In contrast, a composite type in which the slippery sheet 23 is not joined In containers, 50 pinholes were observed in every 2,000 cases. , the incidence of pinholes was 2.5%.

[0018] Next, a second embodiment of the present invention will be described with reference to FIG. This example uses the outer A slippery sheet 23 is attached to the entire inner surface of the cardboard base paper 10 constituting the packaging box. This is how it was done. Note that such a slippery sheet 23 is made of Teflon, silicone, etc. Alternatively, an adhesive film made of polypropylene or the like may be attached to the entire surface of the base paper 10. Alright Alternatively, a cardboard base paper 10 laminated with a polyethylene film in advance is used. You can do it like this.

[0019] A container in which an inner bag 26 is arranged inside a packaging box made of such cardboard base paper 10 According to the above example, even better effects were obtained than in the above example. Like this again By pasting the slippery sheet 23 on the entire surface of the cardboard box, it will be easier to store after refrigerating. This has the effect of preventing the strength of the cardboard from decreasing due to dew condensation.

[0020]

[Effect of the idea]

As described above, the present invention provides a sliding surface on at least a portion of the inner surface of the paperboard constituting the packaging box. This is a material in which the adhesive sheets are joined together. Therefore, according to such a configuration, the internal Pinholes may occur due to abrasion caused by rubbing between the side bag and the outer packaging box. is now prevented by the above-mentioned slippery sheet, and has the effect of preventing pinholes. It is now possible to obtain a composite type container.

[Brief explanation of drawings]

FIG. 1 is a developed plan view of a packaging box of a first embodiment.

FIG. 2 is a longitudinal sectional view of the composite container.

FIG. 3 is a perspective view of the assembled state.

FIG. 4 is a developed plan view of a packaging box for a composite container according to a second embodiment.

[Explanation of symbols] 10 Cardboard base paper 11 Side plate 12 Side plate 13 Side plate 14 Side plate 17 Joint piece 20 Bottom plate 22 Lid plate 23 Smooth sheet 26 Inner bag 27 Cylindrical mouth

Claims (1)

[Scope of utility model registration request] Claim 1: A composite container comprising a synthetic resin bag arranged inside a packaging box made of paperboard, wherein a slippery sheet is bonded to at least a part of the inner surface of the paperboard constituting the packaging box. A composite container characterized by: