JP2646072B2 - Folded box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding box having a wooden side wall and a paper bottom. The present invention relates to an improved folding box that contributes to environmental conservation and resource recovery in the disposal of the folded box.

[0002]

2. Description of the Related Art It has been known that a plastic plate is vacuum-formed on a bottom surface of a folding box having a partitioning ridge to form a sticking bottom. This bottom surface (member) can be manufactured at low cost, and has advantages such as easy adhesion to the side wall (member).

[0003]

However, folded boxes containing a plastic material as a component have a problem in terms of environmental conservation and resource recovery in disposal.

[0004] Most of them cannot be heated or heated by a microwave oven.

[0005] Under such circumstances, the present inventor has previously proposed a method for manufacturing a wooden folded box, and has solved some of the above problems as a secondary effect of the invention. (Japanese Patent Laid-Open No. 6-182722)
issue)

Here, the bottom surface of the folded box is not particularly considered, and at present, an inexpensive plastic bottom is used due to cost requirements.

[0007] In recent years, the use of paper materials has been rapidly developed, and one of them is a paper material coated with a resin.
This type of resin material decomposes in a natural environment.

One of the technical problems to be solved in the application of this paper material is the workability (formability) such as difficulty in deep drawing, but in the present invention, it is necessary to form particularly high partitioning ridges. Therefore, it can be formed by press molding to satisfy a practically effective partition height, which is a very advantageous material selection.

The present invention has been made in view of such circumstances, and solves the above-mentioned problems. The bottom of the wooden folding box is made of a paper material having a partitioning ridge formed thereon, and is adapted to use in a microwave oven. It is an object of the present invention to provide a folded box which is made possible and which is improved so as to contribute to environmental conservation and resource recovery in disposal of used folded boxes.

[0010]

In order to achieve the above object, the present invention relates to a folding box having a wooden side wall and a paper bottom, wherein the bottom formed as a bottom or a sticking bottom is formed by press forming. It is made of paper material with strips formed, and the paper material is coated with resin on the surface to provide heat resistance and water resistance.
It is characterized by being provided with oil resistance.

[0011] Further, the bottom surface is formed in multiple layers, and has an upper layer coated with resin to form partitioning ridges, and a lower layer joined with an air layer interposed therebetween.

[0012]

By forming a folding box having a wooden side wall and a paper bottom, heating or heating by a microwave oven can be performed as it is.

In the disposal of used folded boxes, incineration is easy and even when buried, it is corroded (decomposed) and reduced to soil.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.

(Example 1) As shown in FIG. 1 as a whole perspective view of a folding box, a folding box (X) of the present invention is formed by bending one wooden edge material and bonding the seam to the side wall (1) to which the wooden joint is bonded. It consists of a bottom surface (2) which is a bottom (or a bottom not shown).

A characteristic configuration is that the bottom surface (2) is a paper material having a partitioning ridge (21) formed by press molding.
The surface is coated with a resin in order to impart heat resistance of about 0 ° C. and water and oil resistance.

The paper material may be selected from known paper materials, and may be considered as a limitation of the components in the present invention.

The bottom surface (2) is also a single plate having a certain strength, and can be used as a tray by removing the bottom surface (2).

The formation of the partitioning ridge (21) is somewhat lower than that of the conventional plastic bottom (not shown) due to restrictions on processing (press molding), but is practically effective. Height meets.

However, if there is a request to change the partitioning ridge (21) to a slightly higher one, it is sufficient to adopt the below-described multi-layered bottom surface.

(Example 2) As shown in a schematic cross-sectional view of the bottom surface of the multilayer structure shown in FIG. 2, the bottom surface is formed in a multilayer structure to increase the height of the partitioning ridge (311) and to augment the buffering property at all. It has been modified.

That is, in the multilayer bottom surface (3), the thickness of the paper constituting the upper layer (31) can be reduced to enhance the workability and improve the formability.

The cross-sectional structure has an upper layer (31) on which a partition ridge (311) is formed by coating a resin, and a lower layer (33) joined with an air layer (32) interposed therebetween.

[0024]

According to the present invention, there is provided the above-mentioned structure, in which the side walls have air permeability and the contents (foods) are provided.
Since the freshness of the box is long-lasting and the folded box as a whole has acquired heat resistance, it can be directly heated or heated by a microwave oven.

If necessary, the tray can be used by removing the bottom surface.

In the disposal of used folded boxes, they are easily incinerated, corrode (decompose) even when buried, and are reduced to soil, so that they can be expected to contribute to environmental protection and resource recovery.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a folding box according to an embodiment.

FIG. 2 is a schematic sectional view illustrating a multilayer bottom surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side wall 2 Bottom 21 Partition ridge 3 Bottom (multilayer) 31 Upper layer 32 Air layer 33 Lower layer 311 Partition ridge X folding box

Claims (2)

(57) [Claims] 1. A disposable folding box having a side wall to which one wooden rim is bent and a joint thereof is bonded, wherein the folding box has a wooden side wall and a paper bottom, and is configured as a bottom or a sticking bottom. A folded box, characterized in that the bottom surface is made of a paper material having partition ribs formed by press molding, and the paper material is coated with a resin to provide heat resistance, water resistance, and oil resistance. 2. The folding box according to claim 1, wherein the bottom surface is formed in a multi-layered structure, and has an upper layer coated with resin to form partitioning ridges, and a lower layer joined with an air layer interposed therebetween.