JPH0637182U - Paper packaging materials - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a packaging material such as a cushioning material that contributes to recycling and environmental protection when packaging an object to be packaged. [Configuration] A large number of convex embossing projections may be provided on at least one side of the paper, and the cushioning function may be improved by the large number of embossing projections.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to a packaging material for industrial packaging such as paper cushioning material, foldable packaging box, packaging container, and commercial packaging. However, as will be described later, it is applied not only to packaging materials but also to other industrial fields such as construction materials, construction materials, and automobile parts.

[0002]

[Prior art]

 The inventor is empirically unaware of this type of conventional example. Commonly widely practiced and well-known examples are cushioning materials for packaging and packaging containers made of plastics such as polystyrene foam and vinyl chloride.

As is well known, since the cushioning material made of styrofoam or plastic such as vinyl chloride for packaging is lightweight, has a great cushioning effect, and is easily molded, Widely used in electric appliances and heavy packaging fields.

However, although the plastic packaging material has the above-mentioned advantages, it is a petrochemical product, which has recently been regarded as a problem in particular, so that it is not only for promoting depletion of resources but also for the so-called global environment. Disposal of its industrial waste has become a global problem for the protection of the environment. In some countries, the use of vinyl chloride and Styrofoam as packaging materials has already been banned by law, raising the definite problem that Styrofoam cannot be used for export products from Japan. There is.

In addition to the above-described styrofoam cushioning material, for example, foamed vinyl chloride foam, urethane, cardboard, etc. are used. However, since foamed vinyl chloride foam and urethane foam are petrochemical products like the polystyrene foam packaging materials, there is a problem in disposal. On the other hand, corrugated cardboard packaging materials are easy to use, but they require the laborious work of lamination and have the drawback of poor compression resistance.

[0006]

[Problems to be solved by the device]

 Problems to be solved are depletion of resources and deterioration of global environment. Therefore, the present invention achieves the objectives of suppressing resource depletion, abundant advantages of disposal and recycling, preservation of the environment, etc., while also eliminating the complexity of the production process. It is also an object of the invention to reduce the manufacturing cost.

[0007]

[Means for Solving the Problems]

 This invention has a large number of convex processing protrusions formed on at least one side of a sheet-shaped paper packaging material main body, and is particularly excellent in cushioning capacity and easy to handle for the packaged item. In addition, it is intended to facilitate disposal and recycling by making it flammable and recycling.

[0008]

【Example】

 FIG. 1 shows a plan view of a first embodiment of a cushioning material made of synthetic paper as an example of a packaging material 20 of the present invention, and FIG. 2 is an enlarged sectional perspective view of FIG. . The term "synthetic paper" referred to in this specification means that natural cellulose is extracted and, at the same time, a small amount of a synthetic polymer substance is contained at the time of papermaking. For the adoption of cellulose, of course, the inventor plans to use only so-called waste paper to achieve the purpose of this invention. For example, in order to reduce the production cost, the strength of waste paper is increased by bonding two or three layers of waste paper (100g / sq. I tried it experimentally.

In this invention, synthetic paper is adopted as the main constituent of the cushioning material for paper packaging. It has been found that the use of synthetic paper has an advantage in forming a convex processing projection 12 such as a hemispherical shape by embossing, which will be described later, or having a certain high hardness.

Moreover, a great advantage is that synthetic paper is so-called recyclable and flammable, and therefore advantageous for disposal.

However, although it is preferable to use synthetic paper, it has been found that plain paper such as kraft paper and processed paper cannot be used at all, and that it can be applied for some uses. Moreover, it does not mean that it cannot be applied to so-called processed paper, but by solving commercial problems such as production costs, it can be applied to certain applications.

A large number of hemispherical processing projections 12 are formed on at least one side surface of the paper packaging cushioning material main body 10. As is apparent from FIG. 2, the projections 12 are provided on both side surfaces of the cushioning material body 10 for paper packaging so as to project symmetrically to each other, but of course, the projection 12 may be provided only on one side. The person is naturally planning. In order to form the processing projections 12 on one side of the paper packaging cushioning material main body 10, the inventor provided uneven portions on the upper and lower mold rolls, and pressed the paper packaging cushioning material main body 10 between the mold rolls. Although the so-called embossing process is performed to allow the processed protrusions 12 to be provided, it is of course not intended to limit the embossing process.

Although the processed protrusion 12 shown in the drawings has a hemispherical shape, it is not limited to any hemispherical shape.

The shape of the concavo-convex portion formed on the mold roll can be an irregular shape of any shape. For example, a triangle, a square, an ellipse, or an irregular shape is arbitrary. It will be easily understood that the type, the depth, the number, etc. of the shape of the processed protrusion 12 can be freely set in accordance with the change in the unevenness of the die roll. If the projections 12 are provided corresponding to the form of a packaged object such as a half of an egg, an egg receiving container can be produced, and if the receiving container is used by covering the egg, it becomes a lid. It's easy to understand.

The inventor has adopted a so-called embossing means in order to make the projection 12 relatively easily, and the projection 12 is formed in a hemispherical shape because it is relatively easy to form it in a hemispherical shape. Is.

By providing the processing protrusions 12 on one side surface of the cushioning material body 10 for paper packaging, respectively, as compared with the impact resistance of the cushioning material body 10 for paper packaging alone, the stress acting from one side is reduced. It is intended to increase impact resistance.

Therefore, impact resistance can be achieved by forming a large number of processed protrusions 12 on the paper cushioning main body 10 for packaging, and an air layer is formed inside the processed protrusions 12. Since the air layer also contributes to the cushioning effect, it can be used as it is as the cushioning material of the packaged object, that is, the packaging material 20. In other words, the processing protrusion 12 on one side can withstand an impact from the outside, and since the above-mentioned air layer is formed inside the processing protrusion 12, the cushioning effect is further synergistic. is there.

For example, by laying the sheet material for the cushioning material as a sheet as it is on the bottom of the packaged object stored in a so-called corrugated cardboard box and applying it to the ceiling and side surfaces as well, the packaged article is packaged. The inventor plans to protect objects, increase the number of objects as necessary, and stack them in double or triple layers.

However, the use is limited only by using it as a sheet-shaped cushioning material. Therefore, as shown in FIGS. 1 and 2, the inventor has formed a large number of folding grooves 14 between a large number of embossed projections 12 so as to have a function of folding.

In the example of FIG. 1, a large number of fold grooves 14 are provided in a direction orthogonal to each other. Therefore, the cushioning material has a function of freely bending along the crease groove 14.

For example, as shown in FIG. 3, an object to be packaged, for example, a ceramic plate 22 is placed on the center of the cushioning material, and the four corners are bent inward along the crease grooves 14, The periphery of the plate 22 can be protected. Of course, since the four corners will be restored if they are left as they are, it may be stopped by using an appropriate adhesive tape 24, the packaging box is omitted, and the cushioning material functions as a simplified packaging box. Waste can be eliminated.

The fold grooves 14 shown in FIG. 1 intersect at right angles to each other and are provided in an inclined state with respect to the cushioning main body 10 for paper packaging.

The group of fold grooves 14 described above is inclined with respect to the cushioning main body 10 for paper packaging, and is provided in large numbers at regular intervals. However, this is merely an example, and in principle, the fold grooves 14 The shape, number, spacing, direction, etc. do not matter.

The fold groove 14 shown in FIG. 1 is, so to speak, a general-purpose type regardless of the type of the packaged object.

On the other hand, a dedicated type can be obtained by forming a predetermined number of folding grooves 14 at predetermined positions in advance at a predetermined interval in accordance with the form of the packaged object.

As shown in FIG. 4, the fold groove 14 is provided in a cross shape so that double folding can be performed from different directions.

In the example of FIG. 5, the fold groove 14 is provided in a cross shape. Further, in FIG. 6, the fold groove 14 is provided so as to be inclined only on one side.

Needless to say, all of these crease grooves 14 are provided corresponding to the form of the article to be packaged.

The crease groove 14 shown in FIG. 1 is continuously provided between the adjacent embossing projections 12, but the purpose thereof is to facilitate bending of the cushioning main body 10 for paper packaging. Therefore, even if the crease grooves 14 are provided intermittently, it is expected to be appropriate when the thickness of the cushioning material body 10 for paper packaging is thin.

Further, as shown in FIG. 2, the fold groove 14 is formed in a shallow dent style like a cardboard liner, but the cushioning material main body 10 for paper packaging is made of a hard material to facilitate bending. In some cases, for example, when the wall thickness is large or the wall thickness is large, the fold groove 14 may be provided by a shallow cut.

When the crease groove 14 such as a liner is provided, the upper and lower mold rolls used for processing the embossing protrusion 12 are provided with a shallow uneven portion corresponding to the crease groove 14 so that the embossing process is performed. The crease groove 14 can be easily implemented together with the molding of the protrusion 12.

Next, another embodiment will be described with reference to FIG. This example is essentially the same as the embodiment described above. The difference between this embodiment and the above-mentioned embodiment is that the cushioning material main body 10 for paper packaging of this embodiment is provided with a large number of liners similar to that of corrugated cardboard in advance. On the other hand, the cushioning material main body 10 for paper packaging of the previous embodiment is smooth without a liner. Therefore, in this embodiment, although the cushioning material body 10 made of paper for which a liner is formed in advance is used, the structure of the packaging material 20 is practically the same as the previous embodiment.

That is, a large number of convex embossing protrusions 12 are provided on one side surface of the cushioning material body 10 for paper packaging, and a large number of embossing protrusions on one side surface of the cushioning material body 10 for paper packaging. The fold groove (not shown) is continuously formed between 12 and the like, which is the same as the previous embodiment.

Therefore, the structural features of this embodiment will be described. As shown in a plan view (see FIG. 7) showing an enlarged main part, the protrusion 12 is formed by a so-called embossing process. The liner is significantly stretched and crushed to form fine rib-like small protrusions 26. Due to the physical properties of paper, the cushioning material body 10 for paper packaging is not stretched even if pressed in the upper and lower molds. Therefore, in this invention, a paper packaging cushioning material main body 10 to which a liner is applied at the time of molding is adopted, and by allowing for a margin portion due to the extension of the liner at the time of molding, the production is made possible. .

The wrinkle-shaped small protrusions 26 generated by the crushing of the liner appear in the liner forming direction at the protrusions 12 and between the protrusions 12 between the protrusions 12 in the liner direction.

Therefore, in this embodiment, by adopting the paper packaging cushioning material main body 10 provided with the liner, the strength of the paper packaging cushioning material main body 10 itself and the strength of the embossed protrusions 12 are increased. It is designed to increase.

In the above example, the cushioning material for packaging was mainly described, but this sheet-shaped packaging material 20 can be used as a raw material in a folding box, and by secondary processing through the crease groove 14, It can also be used as a building material and automobile parts.

The following example is an example of another packaging material 20 which is essentially the same as that of the first embodiment and is further devised. Of course, the same applies to other industrial fields as in the first embodiment. The examples shown in FIGS. 8 to 10 are three examples obtained by further subdividing the second embodiment, and the drawings show enlarged cross sections. Therefore, in principle, the above description is applied correspondingly to the points in common with the first embodiment, and the different points will be described in particular. In the example of FIG. 8, the two cushioning body 12 of the paper packaging cushioning material main body 10 having the protrusions 12 only on one side face each other. The tops of the protrusions 12 of the one cushioning main body 10 for paper packaging (lower side in the drawing) are crushed inward toward the inside to form a support portion 16. Therefore, the pair of upper and lower projections 12 of the cushioning main body 10 for paper packaging are opposed to each other, and the projections 12 are adhered with the adhesive 13 interposed therebetween. Of course, the support portion 16 described above is a portion that functions as a glue margin. In this example, the packaging material 20 is stronger than the packaging material 20 described in Example 1 and has an excellent cushioning ability.

The example shown in FIG. 9 is substantially the same as that shown in FIG. 8, and the support portion 16 is provided horizontally. The projections 12 of the upper and lower cushioning material main bodies 10 for paper packaging are adhered with an adhesive 13 interposed.

The example shown in FIG. 10 is not substantially different from the examples of FIGS. It is adhered in a dot shape through.

An example of applying the packaging material 20 to provide the corner cushioning material 22 will be described with reference to FIGS. 11 to 15. FIG. 11 shows a developed view of the corner cushioning material 22.

The corner cushioning member 22 has a basic structure in which the fold groove 14 is omitted in the packaging material 20 shown in FIG. Therefore, the corner cushioning material 22 is provided with the processing projections 12 symmetrically on both sides. In the drawing, the large circle projections 12 are projected to the front side, and the small circle projections 12 are projected to the back surface side in the drawing. The small circle inside the double great circle represents the support portion 16 shown in FIG.

Therefore, the configuration of the corner cushioning material 22 will be described. A first base paper 17 is provided in a square shape on one side of the slit 15 in the central portion as a boundary. Of course, as described above, the projections 12 are projected on the front and back surfaces of the base paper 17.

At the other end of the first base paper 17, folds 19 are formed at regular intervals in the direction perpendicular to the slit 15. This fold 19 also constitutes the thickness of the corner cushioning material 22 when it is used, and the first base paper 17 and the second base paper 21 described later are formed with a constant width across the fold 19. It goes without saying that consideration is given to make it easier to bend.

A fold 23 is provided on the extension of the slit 15 described above by connecting to the fold 19 provided on the first base paper 17 side, and the fold 23 is provided as a boundary between the second folds. Base paper 21 is provided.

The above-mentioned projections 12 are provided on both the front and back sides of the second base paper 21, and the supporting portions 16 shown in FIG. 8 are provided on the tops of some projections 12 on the front surface side. It is provided. As will be apparent from the example shown in FIG. 8, the support portion 16 has a protrusion 12 (tool) on the front surface side when the first base paper 17 is bent toward the second base paper 21 during use. Physically, this is the part that comes into contact with the nine protrusions 12).

Further, on the other side of the second base paper 21, third base papers 27 are respectively provided with the folds 25 provided in the direction perpendicular to the slits 15 as boundaries. A cut 29 is provided between the base papers 27 on both sides of these.

A fourth base paper 33 is connected only to one side of the third base paper 27 on the left and right in the drawings on the other side of the one base paper 27 with the fold line 31 as a boundary. . The fold line 31 at the boundary between the third base paper 27 and the fourth base paper 33 has a constant spacing, like the fold line 19 provided at the boundary between the first base paper 17 and the second base paper 21. Is provided so as to have a predetermined thickness in preparation for use as the corner cushioning material 22.

As with the second base paper 21, the third base paper 27 connected to the fourth base paper 33 is provided with projections 12 on the front and back, and the tops of the projections 12 on the front surface side are provided. A support portion 16 is provided in the.

On the other hand, on the other third base paper 27 that is not connected to the fourth base paper 33, the projections 12 are provided on the front and back like the projections 12 provided on the first base paper 17. However, the support portion 16 is not provided in these projections 12 group.

The configuration of the corner cushioning material 22 in the unfolded state is as described above, but as can be easily imagined from the previous embodiment, the projections 12 group of each base paper are only on one side according to the application. It is also planned to provide the protrusion 12 and omit the support portion 16.

Therefore, an assembling procedure of the corner cushioning member 22 in the unfolded state shown in FIG. 11 will be described with reference to FIGS. 12 to 15.

The first base paper 17 located on both sides of the slit 15 is bent inward as shown by the arrow, with the fold 19 at the boundary with the second base paper 21 as the boundary. On the other hand, the fourth base paper 33 is bent inward as shown by the arrow with the fold 31 provided at the boundary with the third base paper 27 as a boundary. Thus, the corner cushioning member 22 in the unfolded state shown in FIG. 12 assumes the state shown in FIG.

12 and 13 are schematic views, respectively, while FIG. 14 is a detailed perspective view of FIG. 13. It will be understood that the groups of protrusions 12 face each other by folding the first base paper 17 and the fourth base paper 33 inward, respectively.

Next, referring to FIG. 14, the superposed third base paper 27 and fourth base paper 33 are raised inward at right angles toward the inside through the folds 31. On the other hand, the polymerized first base paper 17 and second base paper 21 on the side not connected to the fourth base paper 33 are erected inward at right angles with the fold line 23 as a boundary, and then, , One of the third base papers 27 is bent so as to follow the back surface of the other third base paper 27 that has been raised first. Thus, the assembly of the corner cushioning material 22 is completed. Of course, the third base paper 27 on the other hand can be restored as it is, but it may be temporarily fixed by using a tape or the like. When it is used by press fitting, it is not necessary to consider the restoration.

Further, another cushioning material 35 will be described with reference to FIGS. 16 and 17. FIG. 16 is a plan view, in which a fold 37 is provided in the center so that it can be folded in two, and a large number of projections 12 are provided on both side surfaces thereof. Of course, as is clear from the previous example, it is free to provide the projection 12 group on only one side.

FIG. 17 is a schematic representation of an example of protecting the corners of the item to be packaged, which will be understood without much explanation. It is bent into an L shape with the fold line 37 as a boundary, and is directly brought into contact with the corner of the packaged item.

[0058]

[Effect of device]

 As described above, the present invention has the above-mentioned configuration and therefore has the following advantages. (1) Since a large number of processed protrusions are formed on at least one side surface of the paper body, the packaging material according to this idea can protect the article to be packaged to absorb impacts from inside and outside the article. In particular, since the air layer is formed inside the processed protrusion, the buffer effect is synergistically achieved by waiting for the air layer. (2) Since it is flammable, it is easy to dispose of and contributes to recycling, so resource depletion can be suppressed and it can contribute to environmental conservation.

[Brief description of drawings]

FIG. 1 is a plan view according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional perspective view taken along the line AA of FIG.

FIG. 3 is a plan perspective view showing a usage state of the present invention.

FIG. 4 is a schematic plan view of a fold groove according to a second embodiment of the present invention.

FIG. 5 is a schematic plan view of a folding groove according to a third embodiment of the present invention.

FIG. 6 is a schematic plan view of a folding groove according to a fourth embodiment of the present invention.

FIG. 7 is a plan perspective view according to a second embodiment of the present invention.

FIG. 8 is a schematic enlarged sectional view according to a third embodiment of the present invention.

FIG. 9 is a schematic enlarged sectional view according to a fourth embodiment of the present invention.

FIG. 10 is a schematic enlarged sectional view according to a fifth embodiment of the present invention.

FIG. 11 is a developed plan view according to a sixth embodiment of the present invention.

FIG. 12 is a schematic perspective view of a sixth embodiment of the present invention.

FIG. 13 is a schematic perspective view showing an assembling procedure according to a sixth embodiment of the present invention.

FIG. 14 is an enlarged perspective view of FIG.

15 is a perspective view at the time of assembly of FIG.

FIG. 15 is a schematic perspective view showing an assembling procedure according to a sixth embodiment of the present invention.

FIG. 16 is a developed plan view of the seventh embodiment of the present invention.

FIG. 17 is a perspective view showing a usage state of the present invention.

[Explanation of symbols]

 10 Sheet-shaped paper packaging material body 12 Processing protrusion

Claims (2)

[Scope of utility model registration request] 1. A paper packaging material comprising a sheet-shaped paper packaging material main body 10 on which a large number of convex processing projections 12 are formed. 2. A paper packaging material in which upper and lower two sheet-shaped paper packaging material main bodies 10 are provided with respective processing projections 12 facing each other.