JPH05319455A - Packaging cushion material and manufacture thereof - Google Patents

Abstract

PURPOSE:To provide a packaging cushion material which is soluble in water and easy to recycle or incinerate for disposal, by a method wherein two or more corrugated boards are laminated to form a corrugated board laminated material and a contact part for an article to be packaged is formed in the direction perpendicular to the surfaces of the corrugated boards. CONSTITUTION:A packaging cushion material 10 is made by laminating two or more corrugated boards 11a-11e to form a corrugated board laminated material 10. A contact part 15 for an article to be packaged is formed in the direction perpendicular to the surfaces of the corrugated boards 11a-11e of the corrugated board laminated material 10. The corrugated boards 11a-11e used are of a known corrugated board material. The contact part 15 is formed in the direction perpendicular to the corrugated boards 11a-11e, i.e., in the laminating direction, and into a desired shape, such as a nearly right-angle shape, for example. The edge of the contact part 15 is formed into a wavy or uneven shape, for example, to provide a cushioning performance suitable for the article to be packaged. Thus, the packaging cushion material 10 obtained is soluble in water, easy to recycle and disposable by incineration.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material for packaging such as a corner pad and a manufacturing method thereof.

[0002]

2. Description of the Related Art Generally, as a cushioning material for packaging, a foamed polystyrene molded into a predetermined shape is widely used.

However, although such a styrofoam cushioning material can be easily mass-produced, it is difficult to incinerate it after use because of the toxic gas generated. Furthermore, since it has no self-decomposability, it may remain undecomposed when it is buried in the soil and discarded.

Therefore, in recent years when environmental problems have been severely questioned, such an increase in waste plastic has been a serious problem because it causes environmental pollution.

[0005]

Therefore, the present invention is
The present invention has been proposed in view of the above problems, and it is intended to provide a cushioning material mainly for corrugated board, which is soluble in water, recyclable, and easy to incinerate, and an efficient manufacturing method thereof. It is what

[0006]

That is, the present invention is
A packaging cushion for a packaging material, wherein a packaging part for a material to be packaged is formed in a direction perpendicular to the plate surface direction of the corrugated board part of a corrugated board multi-layered material obtained by integrally superposing a plurality of corrugated board parts. This is a proposal for materials.

The present invention also proposes an efficient method of manufacturing the cushioning material for packaging, wherein a plurality of punched corrugated board materials having punched portions are polymerized and integrally joined to form a predetermined space. With a single layered material having, by cutting and dividing the layered material in the direction perpendicular to the plate surface direction,
It is characterized in that a cushioning material for packaging having a wrapping portion is obtained.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. 1 is a perspective view showing an example of the cushioning material for packaging of the present invention, FIG. 2 is a perspective view showing another example of the cushioning material for packaging of the present invention, and FIG. 3 is another view of the cushioning material for packaging of the present invention. FIG. 4 is a perspective view in an exploded state showing an example of a corrugated board multilayer material in the method of the present invention, FIG. 5 is a schematic sectional view of a corrugated board multilayer material, and FIG. 6 is a schematic of another example of a corrugated board multilayer material. A sectional view, FIG. 7 is a schematic sectional view showing another example of the corrugated board multilayer material, and FIG. 8 is a plan view showing a cut state of the corrugated board multilayer material.

As shown in FIG. 1, the cushioning material 10 for packaging of the present invention comprises a plurality of corrugated board parts 11a, 11b, 11a.
A clad portion 15 for a material to be wrapped is formed in a direction perpendicular to the plate surface direction of the corrugated board portion of the corrugated cardboard multilayer material 11 in which c, 11d and 11e are integrally polymerized.

Each of the corrugated board parts 11a, 11b, 11c,
Reference numerals 11d and 11e are made of known corrugated board materials, and are usually composed of upper and lower flat paperboard parts and corrugated paperboard parts formed between them. The material 11 is formed.

As shown in the drawing, the encapsulating portion 15 is formed in a predetermined shape in the direction perpendicular to the plate surface direction of each corrugated board part, that is, in the stacking direction thereof. In addition, although it is formed in a substantially right-angled shape in the example of the drawing, it is formed in an arc shape or another irregular shape in relation to the material to be packaged.

The peripheral edge of the wrapping portion 15 is preferably formed in a wavy shape as shown in the figure or an uneven shape in view of the cushioning performance with the object to be packaged. Further, it is not necessary that the corrugated corrugated board portions of the corrugated corrugated board portions are completely matched at the time of stacking, and it is more effective in terms of cushioning that there is a discrepancy between the irregularities.

2 and 3 show another example of the cushioning material. In the cushioning material 10A of FIG. 2, the supporting corrugated board portion 12 is formed on one of the upper surface side and the lower surface side of the multi-layer material 11A. .. It goes without saying that the supporting corrugated board 12 is for the packaging portion 15A of the cushioning material 10A to be mounted on the upper or lower corner of the article to be packaged. The supporting corrugated board 12 can be composed of a plurality of plates 12a and 12b as required. 2, the same symbols as those in FIG. 1 represent the same components as those in FIG.

The cushioning material 10B shown in FIG. 3 is formed by forming supporting corrugated board portions 12 and 13 on both sides of the upper surface and the lower surface of the multi-layer material 11B. Therefore, the wrapping portion 15B of the cushioning material 10B abuts the upper and lower portions of the packaged object and is fitted to the side corners. Each support corrugated board 12,
13 is a plurality of plate portions 12a, 12b, 13a, if necessary.
As described above, it may be composed of 13b.
3, the same reference numerals as those in FIG. 1 represent the same components as those in FIG.

4 to 8 show a method of manufacturing the cushioning material for packaging of the present invention. FIG. 4 is an exploded perspective view showing an example of a corrugated board multilayer material in the method of the present invention.
As shown in the figure, in the method of the present invention, large-sized corrugated board materials are laminated and polymerized before use.

That is, first, a plurality of punched corrugated board materials 21a, 21b, 21c, 21 having punched portions 25, 25, 25 formed in a predetermined size, shape and arrangement.
d and 21e are prepared. Normally each corrugated board 21a,
The outer shapes of 21b, 21c, 21d, and 21e are commonly configured.

The shape of the punched portion 25 can be variously determined depending on the shape of the wrapping portion of the cushioning material to be obtained. In addition, each corrugated board material 21a, 21b, 21c, 21d,
The shape of the punched portion formed on 21e is often the same in many cases, but it may be changed sequentially to form a tapered surface or a curved surface.

Further, each corrugated board material 21a, 21b,
It is advantageous to make the peripheral edges of the punched portions 25 of 21c, 21d, and 21e corrugated or uneven so that the cushioning property as a cushioning material is increased and unevenness of the peripheral portions during stacking can be treated without difficulty. ..

Each of these corrugated board materials 21a, 21b,
21c, 21d, and 21e are polymerized so as to have a predetermined height, and by a known bonding means, a single layer material 21, 21A, having a predetermined space as shown in FIGS.
21B. The multilayer materials 21A and 21B are
The supporting corrugated board materials 22 and 23 are arranged on the upper surface side, the lower surface side, or the upper and lower surface sides.

Multilayer materials 21, 21 formed in this way
By cutting and dividing A and 21B in the stacking direction in the manner shown in FIG. 8, the cushioning material for packaging 10, 10 and 10 having a wrapping portion is obtained. Reference numerals C1 to C6 in FIG. 8 represent cutting lines.

In the figure, the multilayer material 21 having four cavities is divided into 16 parts to obtain 16 cushioning materials 10 of the same shape, but it goes without saying that various cushioning materials can be obtained depending on the cutting method. Nor.

[0022]

As shown and described above, according to the cushioning material for packaging of the present invention, since it is made of a corrugated cardboard multilayer material in which a plurality of flat paperboard parts and corrugated paperboard parts are integrally laminated, it is easy to withstand water. It can be dissolved and regenerated. Therefore, unlike conventional plastic cushioning materials, no toxic gas is generated during incineration or remains undecomposed in the soil, which is very advantageous in terms of environmental protection. Also,
Since the packaging part for the material to be packaged is formed in the direction perpendicular to the plate surface direction of the corrugated board part, it is possible to have high cushioning properties and sufficient strength.

Further, according to the method of the present invention, the cushioning material of the present invention can be easily and easily obtained in a large amount by using the conventionally known corrugated board material and the conventional equipment.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a cushioning material for packaging of the present invention.

FIG. 2 is a perspective view showing another example of the cushioning material for packaging of the present invention.

FIG. 3 is a perspective view showing another example of the cushioning material for packaging of the present invention.

FIG. 4 is an exploded perspective view showing an example of a corrugated board multilayer material in the method of the present invention.

FIG. 5 is a schematic sectional view of a corrugated board multilayer material.

FIG. 6 is a schematic cross-sectional view showing another example of a corrugated board multilayer material.

FIG. 7 is a schematic sectional view showing another example of a corrugated board multilayer material.

FIG. 8 is a plan view showing a cut state of a corrugated board multilayer material.

[Explanation of symbols]

 10, 10A, 10B Cushioning buffer material 11, 11A, 11B Corrugated cardboard layer material 15, 15A, 15B Encapsulation part 21, 21A, 21B Corrugated cardboard layer material 25 Vacancy

Claims (6)

[Claims] 1. A packaging part for a material to be packaged is formed in a direction perpendicular to a plate surface direction of the corrugated board plate part of a corrugated board multi-layered material obtained by integrally superposing a plurality of corrugated board parts. Cushioning material for packaging. 2. The packaging cushioning material according to claim 1, which has a supporting corrugated board portion on the upper surface side or the lower surface side or the upper and lower surface sides of the multilayer material. 3. The cushioning material for packaging according to claim 1, wherein the peripheral edge of the packaging portion is formed in a wavy or uneven shape. 4. A plurality of punched corrugated board materials formed with punched parts are polymerized and integrally joined to form a single layered material having a predetermined space, and the layered material is formed in a direction perpendicular to the plate surface direction. A method for producing a cushioning material for packaging, comprising obtaining a cushioning material for packaging having a wrapping portion by cutting and dividing. 5. The method for manufacturing a cushioning material for packaging according to claim 4, which has a supporting corrugated board material on the upper surface side or the lower surface side or the upper and lower surface sides of the multilayer material. 6. The method for manufacturing a cushioning material for packaging according to claim 4, wherein the peripheral edge of the punched corrugated board material is corrugated or uneven.