JP2528803B2 - Stacked ball box assembly and storage container using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container formed of a corrugated cardboard box, and more particularly to a liquid material container and a corrugated cardboard box assembly for forming the container.

[0002]

2. Description of the Related Art In Japanese Utility Model Publication No. 40-8210, a cardboard or a paper material made of a similar durable material is attached to the outer box and crushed in the same manner as the outer box on the inner surface of the material that can be formed into the outer box. There is disclosed a folding container provided with a heat-sealable inner bag that can be used. However, in this publication, no consideration is given to the disposal processing when the filled contents are used up. Similarly, Japanese Patent Application No. 54-147389, Microfilm, Japanese Application No. 59.
-97633 Microfilm, Japanese Patent Application No. 54-151
In any of 734 microfilm, Japanese Utility Model Application No. 52-13334 microfilm, Japanese Utility Model Application No. 51-162283 microfilm, and Japanese Utility Model Publication No. 44-2552, disposal treatment when the filled contents are used up Is not considered at all.

[0003]

It is an object of the present invention to provide a cardboard box having a bag attached to the inside of the cardboard box and a cardboard box assembly for forming the same.

[0004]

According to the present invention, there is provided a corrugated cardboard box assembly in which a bag having a synthetic resin layer on at least an inner surface is attached to an inner surface of a corrugated cardboard box material having an opening in the vertical direction. The present invention relates to a corrugated cardboard box assembly characterized in that a weak body portion capable of easily forming a small opening portion is provided at a portion corresponding to one corner portion, and a storage container made thereof.

The bag is a bag made of synthetic resin or a fibrous bag having a synthetic resin layer on the inner surface, and the synthetic resin is preferably heat-sealable. Also, in the case where additional conditions are required, such as when the contents are extremely reluctant to contact with air, a synthetic resin layer and a heat-sealable synthetic resin layer satisfying such conditions are laminated. It can also be used.

Examples of heat-sealable synthetic resins include polyethylene, polypropylene, polyvinyl chloride and polyester. Examples of the fibrous material include paper (particularly, kraft paper is preferable), non-woven fabric, and woven fabric.

The bag can be made by folding one synthetic resin sheet or a fibrous sheet having a synthetic resin layer on at least one side and sealing the two sides leaving an opening. It is not limited to.

Adhesion between the bag and the corrugated cardboard box material is due to an adhesive or an adhesive, and the adhesive force is such that both can be separated without breaking the bag. And
This peeling includes peeling between the bag and the adhesive (adhesive) adhesive, peeling due to cohesive failure of the adhesive (adhesive) adhesive, and peeling between the adhesive (adhesive) adhesive and the cardboard (also due to material destruction of the cardboard. (Including). The adhesive strength depends on the strength of the bag, but when the synthetic resin layer is formed on kraft paper, the pilling strength indicating the degree of the adhesive strength is 90% or less of the tensile strength of the bag, It is preferably 50% or less. As a result, when the filled contents are used up, the bag is peeled off, the cardboard box material is reused, or reused as a raw material for paper, and only the bag is discarded as industrial waste. . Especially when the content is an adhesive, this merit is great. The measuring method of the tensile strength is "JIS Handbook Logistics and Packaging" 343, published by Japan Standards Association, April 20, 1993.
It was based on the measurement method on page (JIS-Z1702). However, the pulling speed was 200 mm / min (20 ° C.). Moreover, the measuring method of the pilling strength is described in the same book No. 201-205.
It was measured according to the 90 ° peeling method of JIS-Z0237 described on the page. However, the peeling speed is 200mm
/ Min (20 ° C).

The application of the pressure-sensitive adhesive or adhesive may be partial, but it may be partial. For example, the pressure-sensitive adhesive may be applied in stripes, scratches, spots, or the like, or it may be applied in a band-like shape only on the outer peripheral layer of each surface of the cardboard box material. Specific examples thereof are shown in (a), (b), (c), (d), and (e) of FIG. 6, but are not limited thereto.

It is preferable that at least the outer side surface of the corrugated board box material is subjected to a water resistance treatment, and as the water resistance agent, an ordinary water resistance agent used for paper, for example, synthetic resin, wax or the like is used. be able to.

On the opening side of the bag, it is convenient to assemble the box if one of the corresponding parts of the lid of the corrugated cardboard box is cut away.
It is preferable that the notch is provided with a shape that gradually increases toward the tip of the portion corresponding to the lid, for example, a triangular notch.

When the bag is adhered to the corrugated cardboard material, the bag is placed at a position where the bottom seal portion is protruded from the bottom forming portion of the corrugated cardboard material (for example, portions indicated by 1, 2, 3, 4 in FIG. 1). Preferably adheres to the cardboard box material. When assembling into a cardboard box, it is more efficient and safer if the inner bag has some space (the area is slightly larger than the cardboard box in terms of the area and volume of the bottom part, so there is room and the bag is (Because the phenomenon that part of the cardboard box rises from the bottom does not occur), it is advantageous. The amount of protrusion depends on the size of the box, but is usually about 0.5 to 2 cm.

On the opening side of the bag, as shown in FIGS. 1 and 3, one of the lid-corresponding portions 10 and 12 having no notch among the lid-corresponding portions of the corrugated cardboard box material, which are opposite to each other, has a notch. If the portion where the bag 14 and the bag 14 are attached to each other is up to the central portion 20 of the portion corresponding to the lid, after filling the bag with contents such as an adhesive, the opening of the bag can be heat-sealed or the like. Since the bag 14 is supported by the lid-corresponding portion 10 when sealed, the work is easy.

Considering each of the above points, it is easy to fill the bag with contents such as an adhesive, or it is easy to perform the work when the opening of the bag is sealed by means such as heat sealing, or a cardboard box. There are advantages such as easy work to close the.

As described above, the bag is opened so that the area where the adhesive or the adhesive is applied does not hinder the assembling operation when assembling into the corrugated cardboard box material, and / or the extent to which the contents are easily filled. It is preferable that the state can be maintained and / or the range that does not hinder the heat-sealing operation of the bag after filling.

When assembled in a corrugated cardboard box, a weak portion is provided so that a small opening can be easily formed at a portion corresponding to one corner of the corrugated cardboard box. A small opening can be formed from this weakened portion without using a knife, and it is very convenient to take out the liquid contents little by little when needed. Perforation is one of the means for forming the weakened portion. Further, instead of perforating, at least one of the three of the front liner 31, the core 32, and the back liner 33 of the corrugated cardboard material at the above-mentioned place is cut in advance (provided with a break). can do. Specific examples thereof are shown in (a), (b) and (c) of FIG. As another means, a notch corresponding to a small opening may be provided in advance in the cardboard box material at the above-mentioned location. It is preferable to reinforce the small opening portion or the weak portion of the corrugated cardboard box where the small opening portion is to be provided with a gum tape. When the small corrugated cardboard is to be removed to make a small corrugated board, the material around the small corrugated board can be covered with synthetic resin, rubber, or metal. It is possible to prevent the cardboard box material around the opening from being contaminated. The cover may be coated with a synthetic resin or rubber, or may be a film. Alternatively, as shown in FIG. 8, a cap 35 made of synthetic resin, rubber or metal.
Can be covered. This can prevent the contents from entering the liner. Further, if the cap has a structure as shown in FIG. 9, pressing the central portion with a finger or the like facilitates bending and facilitates insertion into a predetermined portion. Further, the corrugated cardboard for the small opening is not completely removed, but the corrugated cardboard pieces 43, 44 at the planned small opening are replaced with the ridge line portion 41 of the corrugated box as shown in FIG.
Fold 42 in the direction of the arrow as a fold line. On this occasion,
Predetermined locations 45, 46 on the side wall of the corrugated board or the corrugated board piece 4 so that the corrugated board pieces 43, 44 can be attached.
A pressure-sensitive adhesive or adhesive layer is provided on the upper surfaces of 3, 43, and is covered with a peeling layer, and the peeling layer is removed at the time of attachment, and the corrugated board pieces 43, 44 are attached thereto.

If an upper lid is attached, the opening provided for taking out the contents can be protected, and
It is possible to prevent dust and the like from entering through the opening, and insert a brush, a squeezing iron, etc., to be used when applying the adhesive, which is the content, between the box body and the upper lid. be able to. In some cases, the upper lid may have perforations or cuts that match the perforations or cuts.

The corrugated board assembly of the present invention can store all filling materials such as powder, granules, and any solid material, liquid material, and the like.

Next, the present invention will be described in detail with reference to the drawings. FIG. 1 is a development view of a cardboard box material which is one of the preferred embodiments of the present invention, in which 1, 2, 3, and 4 are bottom-portion forming members of the cardboard box, 5, 6, 7, and 8 are cardboard. The box side wall forming members 9, 10, 11 and 12 are the upper part forming members of the corrugated cardboard box. The upper forming members 9 and 11 are
.. are provided so as to facilitate the heat sealing work of the opening portion of the bag 14 shown in FIG. 2, for example. 13 is a so-called margin. Since it is a margin, an adhesive may be attached to this portion to form a cardboard box, but there is no problem even if a stapler is used. Perforations or cuts 21 for easily forming a small opening in a part of the upper forming members 9 and 10,
22 is provided.

FIG. 2 is a side view of a bag showing an example of the bag attached to the inside of the cardboard box. In this example, one surface of kraft paper is coated with polyethylene, and the polyethylene-coated surfaces are combined and heat-sealed at 15 and 16 points. Regarding the size of the bag, the width M of the width corresponds to the size M of FIG. 1 and the length L of FIG. 2 corresponds to the length L of FIG.
When attaching the bag to the cardboard box assembly, for example, the L portion is attached to the cardboard box assembly, and the Q and R portions are attached to the cardboard box assembly in a state of protruding from the cardboard box assembly. When the side walls of the cardboard box are all 32 × 24 cm, R is 6.
5 cm and Q were 1.5 cm.

In FIG. 3, a bag is attached to the corrugated board assembly,
It is a perspective view which shows the state assembled | assembled to the state which can be filled with the content. The bottom forming member is sealed with gum tape or the like, but is omitted in the drawing. In the bag in this state,
A predetermined amount of the content is filled, and if necessary, the upper portion of the bag 14 is heat-sealed or hot-melt bonded while degassing or purging with an inert gas.

FIG. 4 shows a state in which the contents in the state of FIG. 3 are filled and sealed, and then the upper forming member is overlapped to form a storage container. Upper forming members 10 and 12
The seam is sealed by applying gum tape or the like (the gum tape is omitted in the figure).

FIG. 5 shows a state in which the cardboard box is sealed as shown in FIG. 4, the upper lid 18 is put on, and the strap 24 is put on the upper lid 18. If the content is a liquid adhesive, a squeezing iron or the like used to apply the liquid adhesive to the floor can be inserted between the cardboard box and the upper lid.

[0024]

[Effect] According to the present invention, a new type of cardboard box storage container can be provided. Since the storage container of the present invention can very easily separate the bag and the cardboard box material after the contents are exhausted, the outer cardboard box can be reused. As a result, since only the inner bag is used as waste, the amount of waste generated is extremely small compared to the case where a conventional cardboard box container is used, which contributes to environmental protection. Further, in the present invention, by providing the cardboard with perforations, cuts or notches, the contents can be easily taken out without a knife.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a development view of a cardboard box material used in the present invention.

FIG. 2 is a side view showing an example of the structure of a bag used in the present invention.

FIG. 3 is a perspective view of a cardboard box storage container showing an example of the present invention assembled by the cardboard box material of FIG. 1 and the bag of FIG.

FIG. 4 is a perspective view showing a state in which the storage container of FIG. 3 is sealed.

5 is a perspective view showing a state in which an upper lid is put on the storage container of FIG. 4 and a strap is applied.

FIG. 6 is a specific example (a), (b), (c) in which a pressure-sensitive adhesive or an adhesive is partially applied to one surface of a cardboard box material.
It is a top view which shows (d) and (e).

FIG. 7 is a mode (a) in which only the front liner of the corrugated cardboard material is cut to facilitate the provision of an opening in the corrugated cardboard material (a), and a mode in which both the front liner and the back liner are cut ( b) is a cross-sectional view showing a mode (c) in which both the front liner and the core are cut.

FIG. 8 shows a partial cross-sectional view of a cardboard box storage container with a cap on the opening of the cardboard box storage container.

FIG. 9 is a perspective view showing an example of a cap structure capable of covering the opening of the corrugated board box material.

FIG. 10A is a partial perspective view of a corrugated cardboard box showing a state in which a corrugated cardboard piece at a small opening planned portion is erected using perforations or cuts, and FIG. 10B is as shown in FIG. It is a partial perspective view of the corrugated cardboard box which shows the state which folded up the corrugated cardboard piece which was started up and made it adhere to the corrugated board box side wall.

[Explanation of symbols]

1 Bottom forming member for cardboard box material (bottom forming part) 2 Bottom forming member for cardboard box material (bottom forming part) 3 Bottom forming member for cardboard box material (bottom forming part) 4 For bottom forming part of cardboard box material Member (bottom forming part) 5 Side wall forming member of corrugated cardboard material 6 Side wall forming member of corrugated cardboard box material 7 Side wall forming member of corrugated board box material 8 Side wall forming member of corrugated board box material 9 Top part forming of corrugated board material Member (corresponding to lid) 10 Member for forming upper part of corrugated cardboard material (corresponding to lid) 11 Member for forming upper part of corrugated cardboard material (corresponding to lid) 12 Member for forming upper part of corrugated cardboard material (corresponding to lid) 13 Corrugated board Margin of box material 14 Bags 15 Sealing part of bag 16 Sealing part of bag 18 Upper lid 19 Notch 20 Point near the center part of one lid part without notch and up to this point It shows that the lid part is provided with an adhesive. 21 Perforations or Breaks 22 Perforations or Breaks 24 Belt Strings 31 Table Liner 32 Center Core 33 Back Liner 34 Breaks 35 Caps 41 Ridge Lines 42 Ridge Lines 43 Cardboard Pieces 44 Corrugated Cardboard Pieces 45 Cardboard Pieces Attached Places 46 Cardboard Pieces Attachment Planned location 47 Small opening

Claims (10)

(57) [Claims] 1. A cardboard box assembly comprising a cardboard box material having a synthetic resin layer on at least the inner surface of which is attached to the inner surface of a cardboard box material having an opening in the up-down direction. A corrugated cardboard box assembly characterized in that a weak body portion that can easily form a small opening portion is provided at a portion corresponding to a corner portion. 2. The weakened portion is a corrugated cardboard box provided with a cut in at least one of a front liner, a core and a back liner of the corrugated box material at one corner. Cardboard box assembly as described. 3. A corrugated board box assembly in which a bag having a synthetic resin layer on at least the inner surface is attached to the inner surface of a corrugated board material which is opened in the vertical direction. A corrugated board box assembly in which the corrugated board material at the corners has a notch corresponding to a small opening in advance. 4. The cardboard box material around the small opening is
Covered with synthetic resin, rubber or metal.
Cardboard box assembly as described. 5. The small opening has a structure such that the corrugated cardboard piece can be attached to a side wall of the corrugated board box when the corrugated board piece at the opening is folded back with the ridge line portion of the corrugated board box as a folding line. Or the cardboard box assembly described in 3. 6. The corrugated cardboard box assembly according to claim 5, wherein in order to attach the folded-back piece, a layer of an adhesive or an adhesive is formed in advance at a place where the piece is to be attached, and a release layer is further formed thereon. 7. The upper cover of claim 1, 2, 3, 4,
The cardboard box assembly according to 5 or 6. 8. The adhesion between the bag and the corrugated cardboard box material is an adhesive or an adhesive, and the adhesive force is such that both can be separated without breaking the bag. The cardboard box assembly according to 4, 5, 6, or 7. 9. The cardboard box assembly according to claim 8, wherein the pilling strength indicating the degree of the adhesive force is 90% or less of the tensile strength of the bag. 10. Claims 1, 2, 3, 4, 5, 6, 7,
A storage container made from the cardboard box assembly according to 8 or 9.