JPH11157572A - Packaging method and packaging material used in the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a surface of a packaged object from being damaged by a pulp molding due to vibration during transportation and also to allow a packaging member to be disposed of as it is by placing a biodegradable flexible member between a surface of the pulp molding and the surface of the packaged object. SOLUTION: When a parallelopiped product W is to be packed using a corrugated fiberboard box 1, an auxiliary packaging member 2 comprising a pulp molding with an expanded sheet S of biodegradable resin applied to come into contact with a surface of a corner C of the product W between the corner C of the product W and an internal corner of the corrugated fiberboard box 1 for packaging. The auxiliary packaging member comprising the pulp molding has sufficient strength to keep a gap between an internal face of the box 1 and the surface of the product W, while the expanded sheet S stuck to the surface exhibits cushioning property to protect the surface of the product W. In addition, since both the expanded sheet S and the pulp molding are biodegradable, the auxiliary packaging member 2 can be disposed of as it is.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging method and a packaging material used in the packaging method. In particular, the present invention relates to a packaging method using a molding material by a pulp mold and a packaging material used for the method.

[0002]

2. Description of the Related Art The pulp molding method is a method in which pulp obtained by defibrating (fibrillating) waste paper is used as a raw material and formed into a container or the like. The packaging material thus formed is used as a packaging container for eggs. Used. There is a similar packaging container made of synthetic resin, but the packaging container made of the pulp mold has a wide range of applications because of its biodegradable properties (the nature of being degraded by microorganisms, light or moisture in nature). It is getting. For example, in packaging using a cardboard packaging box, it is also being used as a cushioning material or the like for covering corners and edges of articles to be packaged.

[0003] Styrofoam has conventionally been used as a packaging material such as a cushion material. This styrofoam is excellent in cushioning property and article protection function, but has a problem that it does not decompose in nature. In order to solve this problem, it is conceivable to use a pulp molded product molded by pulp mold as an auxiliary material for packaging such as a cushion material. Due to its hardness, the surface of the package that comes into contact with the surface may be damaged during vibration during transportation.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve this problem, and it is an object of the present invention to prevent a surface of an object to be packaged from being damaged by the pulp molded product in packaging using the pulp molded product. The subject.

[0005]

Means for Solving the Problems The packaging method of the present invention taken to solve the above-mentioned problem is described in "Packaging using a pulp molded article, between the surface of the pulp molded article and the surface of the article to be packaged. A flexible biodegradable member is interposed. " Here, the packaging includes packaging using a packaging box or packaging using a wooden frame. In addition, the case where the whole pulp molded product is a packaging box and the case where the pulp molded product is a packaging auxiliary material or a packaging auxiliary material interposed between the packaging wooden frame and the object to be packaged are included.

[0006] The above solution works as follows. According to this method, for example, when accommodating an article to be packaged in a cardboard box, when the pulp molded article is used as a packaging auxiliary material for preventing vibration, between the pulp molded article and the surface of the article to be packaged. Because a biodegradable flexible member is interposed,
Even when the surface of the packaging auxiliary material and the packaged object are rubbed against each other during the vibration during transportation, the pulp molded product and the packaged item do not come into direct contact, and the surface of the packaged item is scratched. Inconvenience can be resolved. Similar effects can be obtained when the pulp molded product is a packaging box.

Naturally, the flexible member has such a flexibility that the surface of the object to be packaged is not damaged by sliding on the surface of the object to be packaged. Further, as a packaging material used for carrying out the method of the present invention, "a pulp molded product arranged along the surface of the packaged object, And a flexible protective layer.

When the packaging material is accommodated in the packaging box for packaging, if the packaging material is interposed between the packaging material and the packaging box, the surface of the pulp molded article and the packaging material can be removed. The protective layer is interposed between the protective layer and the surface. This protective layer is a flexible layer (a flexible layer that does not damage the surface of the packaged item)
Therefore, the method of the present invention can be performed simply and reliably.

[0009]

According to the present invention having the above configuration, the following specific effects are obtained. According to the first method of the present invention, since the contact surface with the article to be packaged is a flexible member, there is no fear that the article to be packaged is damaged by the vibration of the article to be packaged during transportation. Also, since the flexible material is biodegradable, both are biodegraded when disposed of together with the pulp molded article.

According to the second aspect of the present invention, in addition to exhibiting the above-described effects of the first aspect of the present invention, there is an advantage that the method can be implemented simply and reliably. [Others] In the second aspect, the protective layer may be a foamed layer made of a biodegradable resin. In this case, since the protective layer made of the foamed layer exhibits the same cushioning property as the conventional styrofoam, the same cushioning property as the conventional one can be obtained. As the foam layer, a configuration in which a foam sheet made of a biodegradable resin is adhered to the surface of a pulp molded product, a method in which foam foam layers are integrally laminated, and the like can be adopted. A similar effect can be obtained by using a soft non-woven fabric layer of biodegradable resin fibers instead of the foam layer.

Further, the protective layer may be a flocked layer made of a biodegradable resin. The flexibility of the flocking layer also needs to be such that it does not damage the surface of the packaged object depending on the sliding with the surface of the packaged item. In this case, the protective layer can be formed on the surface of the pulp molded article by flocking, and the protective layer forming operation is simple.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 shown in FIGS.
When packing a rectangular parallelepiped product (W) using a cardboard box (1), packaging aids (2) are placed at the corners (C) of the product (W).
It is an example of a method of mounting and packaging. In this example, the packaging aids (2) and (2) covering the four corners (C) and (C) of the product (W), that is, the entire two upper sides and the two lower sides, are manufactured.
(W) and the inner corner of the cardboard box (1). The packaging aid (2) is shown in FIG.
As shown in the figure, flanges (22) can be protruded from both ends of a chevron section (21) covering a corner (C) of the product (W),
The skirt portion (23) is formed to extend from the edge portion of the flange portion (22) and the edge portions on both sides of the chevron section (21).

The protrusion size of the flange portion (width along the longitudinal direction of the packaging auxiliary material) and the skirt portion
The width of (23) is the same. Therefore, in the packaging state, the gap between the side of the product (W) and the inner surface of the side wall of the cardboard box (1), the gap between the inner surface of the top wall of the cardboard box (1) and the upper surface of the product (W), and the lower surface of the product (W) The gap between the inner wall of the cardboard box (1) and the inner surface of the bottom wall of the cardboard box (1) is determined by the skirt (23). It is determined by the section (22). In this example, these gaps are all the same.

Each of the packaging auxiliary materials (2) is a pulp molded article molded by a pulp mold, and
A foam sheet (S) is attached to an inner surface of the chevron section (21) and a flange section (22) and a skirt section (23) which are continuous with a peripheral edge thereof. Usually, of the molding surfaces formed by the pulp mold, the contact surface with the mold is finished more smoothly than the non-contact surface. In this example, the chevron section (21) serves as the contact surface, on which the foam sheet (S) is adhered.

In packaging, the foam sheet (S) is placed in the cardboard box (1) so that it comes into contact with the surface of the corner (C) of the product (W). As a result, the product (W) is positioned in the cardboard box (1) by the packaging aids (2) (2) made of pulp molded products. Since the pulp molded product is hard, the edge of the flange portion (22) and the edge of the skirt portion (23) of the packaging auxiliary material (2) are in contact with the entire inner surface of the cardboard box (1). Thus, it has sufficient strength to maintain a gap between the inner surface of the cardboard box (1) and the surface of the product (W). On the other hand, since the foamed sheet (S) is attached to the pulp molding surface facing the surface of the product (W) as described above, this exerts cushioning performance,
This will protect the surface of the product (W). In this way, even when the pulp molded product is packaged using the packaging aid (2), the product (W) can be sufficiently packaged.

In particular, the foam sheet (S) of this embodiment is made of a material such as a biodegradable resin or plastic. On the other hand, when a pulp molded article manufactured by a pulp mold is left naturally, it has a so-called biodegradability, which is decomposed by microorganisms or by the power of light or water. Therefore, when the packaging auxiliary material (2) is discarded in the natural world, it is decomposed, so that there is no concern that the packaging auxiliary material (2) remains in the natural world without being decomposed unlike the conventional styrofoam packaging auxiliary material.

The second embodiment shown in FIG.
Is wrapped by a pair of the packaging auxiliary materials (2) and (2), and the flocking layer (3) is provided on the inner surface of the rectangular concave portion of the packaging auxiliary material (2) instead of the foam sheet (S). ) Is formed. In order to form the flocking layer (3), the flocking layer (3) may be formed on the inner surface of the chevron section (21) by a normal flocking method. Also in this case, the material constituting the flocking layer (3) employs the above-mentioned biodegradable material.

In this case, the flocking layer (3) functions as a cushion layer. When left naturally as in the case of the packaging auxiliary material (2) of the first embodiment, it is naturally decomposed or biodegraded. The foam sheet (S) or the flocking layer (3)
Instead, as shown in FIG. 7, a nonwoven fabric (31) made of biodegradable resin fibers may be attached to the inner surface of the rectangular recess. In this case, the constituent fibers of the nonwoven fabric (31) have the same flexibility as the foamed sheet (S) and the flocking layer (3).

In this case, the same operation and effect as those of the above embodiments can be obtained. In any of the above examples, the flocked layer
(3), non-woven fabric (31), or foam sheet (S), the sheet-shaped material is cut into a predetermined shape in advance and affixed, these layers are directly chevron section (21) or the It may be formed on the inner surface or the like of the rectangular recess.

[Brief description of the drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX.

FIG. 3 is a perspective view from the inside of a chevron section (21) of a packaging auxiliary material (2) used in this embodiment.

FIG. 4 is a sectional view taken along line YY.

FIG. 5 is a sectional view taken along the line ZZ.

FIG. 6 is a sectional view of the second embodiment.

FIG. 7 is a perspective view of a packaging auxiliary material (2) according to a third embodiment.

[Explanation of symbols]

(W): Product (1): Cardboard box (C): Corner (2)
: Packaging auxiliary material (21): Angle section (22): Flange (23): Skirt (S): Foam sheet (3): Flocked layer (31): Non-woven fabric The same reference numerals in each drawing are the same or the same. The corresponding parts are shown.

Claims (5)

[Claims] 1. A packaging method using a pulp molded article, wherein a biodegradable flexible member is interposed between the surface of the pulp molded article and the surface of an article to be packaged. 2. A pulp molded article arranged along the surface of a packaged object, the packaging material having a biodegradable flexible protective layer on the surface on the side of contact with the packaged object. . 3. The packaging material according to claim 2, wherein the protective layer is a foamed layer made of a biodegradable resin. 4. The packaging material according to claim 2, wherein the protective layer is a flexible fiber layer made of a biodegradable resin. 5. The packaging material according to claim 4, wherein the protective layer is a flocking layer made of a biodegradable resin.