JPH052430Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to the improvement of composite packaging materials used as materials for various packages. To provide a composite packaging material which can be easily cut by using a half-cut cut halfway through the wall thickness, and which can make the cut part look neat.

[Prior Art] Containers made of corrugated cardboard are widely used as outer containers for various products because the corrugated cardboard material has many protective functions such as cushioning properties and robustness that can withstand distribution. In order to easily and quickly unpack and divide containers of this type, it has been known to use cut tape (for example, see Utility Model Publication No. 11002/1983).

In addition, when opening the package, for example, as shown in FIG. 12A, two parallel half cuts (cut lines) 31 are provided on the back liner of the cardboard 30 to form a strip-shaped cutout section 32, or as shown in FIG. It is also known that a cut tape 33 is pasted on the inside of the parallel cutting lines on the opposite side of the half cut 31, and the strip-shaped cut-off piece 32 is pulled up together with the cut tape on the inside so that the cardboard can be cut. There is.

[Problems to be solved by the invention] However, when unpacking or dividing work is carried out using this cutting tape or half-cutting, the fibers of the cut part become hangnails at the cut end of the part torn by the cutting tape or the like. The paper layer peels off, creating a jagged, serrated appearance and exposing the cutting width that corresponds to the width of the cut tape. The drawback was that the aesthetic appearance was impaired. In addition, in recent years, shipping containers are required not only to have a transport function but also to function as advertising information transmission media, but corrugated cardboard containers are generally less suitable for printing than paperboard containers, and as a result, the surface of the container is multi-colored. The current situation is that advanced printing such as precision printing and design printing cannot be performed satisfactorily. Furthermore, due to the recent adoption of barcodes in POS systems, there is a strong demand for improved printing suitability on the surface of mailing and/or sales containers, but the problem is that conventional cardboard containers cannot meet this demand. The dot was hot.

This invention solves all of the problems mentioned above and improves the cosmetic appearance and printability. At the same time, it also provides the convenience that conventional products have, such as unpacking and dividing into smaller pieces by using cut tape. It is an object of the present invention to provide a composite packaging material for packages that can be easily and quickly manufactured.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a decorative sheet made of paperboard, plastic film, etc. with excellent printing effect, and a corrugated cardboard sheet, as shown in the following examples. This is intended to be realized by using a composite packaging material made by bonding together with an adhesive a reinforcing sheet made of strength members such as the following. That is, in a composite packaging material in which a reinforcing sheet is bonded to one side of the decorative sheet and integrated, a band-shaped cut-off piece is provided on the front side of the reinforcing sheet, and at a position overlapping with the cut-off piece, and on the decorative sheet itself. The desired composite packaging material is obtained by providing perforations or continuous score lines.

The band-shaped cut-off piece provided on the reinforcing sheet is
It is formed by cutting two half-cuts from the reinforcing sheet itself from the front side toward the inside to the middle of its thickness, or by pasting cut tape on the front side of the reinforcing sheet. The decorative sheet and the reinforcing sheet are bonded together at a portion that avoids a position overlapping with the strip-shaped cutout portion.

[Example] Next, an example of the present invention will be specifically described based on the accompanying drawings.

1 to 3 show the basic structure of the composite packaging material of the present invention. The composite packaging material 1 shown in the figure is composed of a decorative sheet 2 made of paperboard and a reinforcing sheet 3 made of double-sided or single-sided corrugated cardboard.
The decorative sheet 2 and the reinforcing sheet 3 are attached to each other by an adhesive part 4 which is partially applied in spots or stripes on the facing surfaces of both sheets, avoiding the position where they overlap with the band-shaped cut-off pieces described later, as shown in Fig. 1. It is pasted together. Incidentally, as the adhesive, for example, hot melt, vinyl acetate, etc. are used, but general starch glue may also be used.

Using the composite packaging material 1 having such a structure, a band-shaped cut piece, that is, a cut tape 5 is attached to the front side of the reinforcing sheet (cardboard) 3. This cutting tape is provided at multiple locations when it is necessary to divide and cut the reinforcing sheet at multiple locations. Further, the cut tape is attached according to a predetermined cut shape, and in most cases, it is attached in a straight line in the vertical or horizontal direction, but is not limited to this, and may be in an obliquely curved shape. Note that the reference numeral 5a indicates a knob portion of the cut tape. At the position overlapping the cut tape and on the decorative sheet (paperboard) 2 itself,
Perforations or continuous score lines 6 are neatly carved in advance. A cutout or hole 6a is provided at one or both ends of the perforation or cut line at the edge of the decorative sheet to expose the cut tape knob 5a.

By the way, the strip-shaped cut-out piece provided on the reinforcing sheet 3 of the present invention may be formed by using two parallel half cuts cut halfway through the thickness of the reinforcing sheet instead of the above-mentioned cut tape 5. That is,
In this case, as shown in FIG.
used as Note that, although the score lines are generally continuous in the cutting direction, they may be discontinuous in the form of perforations. Moreover, either double-sided or single-sided corrugated cardboard can be used. Incidentally, in the present invention, the cut tape 5 and the half cut 8 may be used in combination as shown in FIG. 4C, instead of using the cut tape or the half cut described above alone as the band-shaped cut piece portion 5. Note that the decorative sheet 2 and the reinforcing sheet 3 are both illustrated as simple rectangular flat sheets in FIGS. 1 to 3. However, in actual use, it goes without saying that each sheet may be appropriately bent into a channel shape, an angle shape, or a cylindrical shape.

The composite packaging material of the present invention constructed as described above can be used as a lid material for various packages, or as a material for side wall materials, bottom plate materials, etc., as will be described later.

[Operation] Next, the operation of the present invention will be explained with reference to FIGS. 5 to 7. As shown in Figure 6, the decorative sheet 2
When using the packaging material of the present invention in which the reinforcing sheet 3 and the reinforcing sheet 3 are laminated and integrated, and the cut tape 5 attached to the lower side of the reinforcing sheet (cardboard) 3 is pulled as shown by the arrow in FIG. The cut portion of the reinforcing sheet by the cut tape is torn with a cut width corresponding to the tape width. The cut 3a of the reinforcing sheet has a rough appearance as described above, but the upper decorative sheet 2
Since perforations or score lines 6 are formed in advance at the positions where the cut tapes overlap, the decorative sheet is flipped up along the cut lines and neatly divided into two parts. Therefore, the packaging material according to the present invention can be cut easily and quickly, and even if the cutting width of the reinforcing sheet 3 by the tape 5 becomes large, after cutting, the decorative sheet can be cut as shown in FIGS. 8 and 9. Since the decorative sheets are butted together along only one cutting line, the beauty of the cut portion is maintained, and the cosmetic properties of the packaging material are improved.

In addition, since paperboard with a high printing effect is used as the decorative sheet 2 in the above embodiment, it is possible to perform advanced multicolor printing, etc. Furthermore, barcode printing is also possible, so it can be used as an advertising information transmission medium. can fully satisfy the functions of

Note that although paperboard and cardboard are used as the materials for the decorative sheet 2 and the reinforcing sheet 3, respectively, the present invention is not limited thereto. For example, as the decorative sheet 2, plastic film,
Any material may be used as long as it has good printability such as kraft thin paper, and the reinforcing sheet 3 may be paperboard, plain paper, synthetic paper, etc. as long as it satisfies the strength requirements required for the package. It may be a laminate or a suitable combination of these.

What is shown in FIG. 10 is an example in which the composite packaging material according to the present invention is used as a lid for a collective subdivision packaging box. In the figure, numeral 11 is a corrugated box made of a plurality of boxes with an open top, and numeral 12 is a lid that closes the opening of the box and connects the plurality of boxes together. , the lid has connecting flaps 14, 1 around the four circumferences of a decorative sheet (top plate) 13 made of paperboard.
5 are connected. Further, a plurality of cut tapes 5 are attached in parallel to the lower surface of the corrugated reinforcing sheet 3, which is integrally pasted with the decorative sheet, according to the number of boxes 11, and the decorative sheet 13 has edges of flaps 14. Perforations or continuous cutting lines 6 are formed in correspondence with each cart tape 5 so as to reach the edges. Other than that, the configuration is the same as that shown in FIG.

In the case of this embodiment, when the cut tape 5 is pulled and the lid body 12 is cut to divide and subdivide the collective packaging box, the paperboard decorative sheet 13 maintains the abutted state with the cutting line as the border, so this sheet The cut ends are covered after the package is opened, and there is no gap between the cut parts as in the conventional case.
Therefore, the product inside the box cannot be seen through the cut portion, so the appearance of the packaged box after being divided is extremely good.

What is shown in FIG. 11 is an example in which the composite packaging material according to the present invention is used as a blank sheet of a type A packaging box. In the figure, 21 is the box body, 22 is the four side plates,
23 is a lid connected to the upper end of the side plate, and 24 is a bottom plate. The four side plates constituting the box body are made of paperboard, and a reinforcing sheet 3 made of corrugated cardboard is adhered to the entire inner surface of the side plates and integrated therewith.
In addition, a cut tape 5 is attached to the front side of the reinforcing sheet in a circular manner, and corresponding to the tape, perforations or score lines 6 are preliminarily formed on the four side plates 22 made of paperboard that constitute the decorative sheet. is engraved. Furthermore, when the present invention is applied to a packaging box of the Inro type, which is formed by disposing a cylindrical inner frame around the inner periphery of the rectangular box body, it becomes an extremely preferred embodiment.

[Effects of the invention] As described above, according to the invention, it is not only possible to unpack a package or divide the package into smaller pieces using cutting tape or half-cuts, but also to cut the decorative sheet after dividing. The cuts made by the cut tape or half cut are covered with a decorative sheet by abutting the cut parts along the cutting line, and the cosmetic appearance can be improved while the cut parts are abutted.

In addition, the decorative sheet guarantees the cosmetic properties and printability required of packaging as an advertising information transmission medium, and the protective function that withstands logistics is guaranteed by the reinforcing sheet. This is a useful idea in terms of what it can accomplish.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the basic structure of the packaging material according to the present invention, Figs. 2 and 3 are plan views of the decorative sheet and reinforcing sheet, and Fig. 4 A to C are bookmarks using half cut and cut tape. An enlarged sectional view of the device, FIGS. 5 and 6 are sectional views of the main parts before and during cutting with the cutting tape, FIG. 7 is a perspective view of the same as above, and FIG. 8 is a sectional view of the main parts after cutting with the cutting tape. , FIG. 9 is a perspective view of the cut section seen from the back side,
Figure 0 is an explanatory diagram showing an example in which the packaging material according to the present invention is applied to a group subdivision packaging box, Figure 11 is an explanatory diagram showing an example in which the packaging material according to the present invention is applied to a type A packaging box, and Figure 12 is an explanatory diagram showing an example in which the packaging material according to the present invention is applied to a type A packaging box. FIG. 3 is an enlarged cross-sectional view of an example. 1... Composite packaging material, 2... Decorative sheet, 3...
Reinforcement sheet, 4...Adhesive part, 5...Cut tape, 6...Perforation hole (cut line), 11...Liner,
8... Half cut (cut line) 11... Box body, 1
2... Lid material, 13... Decorative sheet (top plate), 14,
15... flap, 21... box body, 22... side plate, 23... lid, 24... bottom plate.

Claims (1)

[Claims for Utility Model Registration] 1. In a composite packaging material in which at least one reinforcing sheet is laminated to one side of a decorative sheet and integrated, a band-shaped cut-off piece is provided on the front side of the reinforcing sheet, and the cut-off piece is 1. A composite packaging material having a simple cut structure, characterized in that perforations or cut lines are provided in the decorative sheet itself at a position overlapping with the decorative sheet. 2. A composite packaging material having a simple cut structure according to claim 1 of the utility model registration, wherein the decorative sheet is paperboard and the reinforcing sheet is cardboard. 3. A composite packaging material having a simple cut structure according to claim 1, wherein the decorative sheet is one type selected from plastic film and kraft tissue paper. 4. A composite packaging material having a simple cut structure according to claim 1, wherein the reinforcing sheet is a laminate of two or more types selected from paperboard, plain paper, and synthetic paper. 5. A composite packaging material having a simple cut structure according to claim 1 of the utility model registration claim, wherein the strip-shaped cut-off piece is a cut tape. 6. A composite packaging material having a simple cut structure according to claim 1, wherein the strip-shaped cut-off piece is formed by two half-cuts cut halfway through the thickness of the reinforcing sheet. 7. A composite packaging material having a simple cut structure according to claim 2 of the utility model registration claim, wherein the band-shaped cut-off piece is formed by continuous or discontinuous cut lines made on one side liner of a corrugated board serving as a reinforcing sheet. 8. A composite packaging material having a simple cut structure according to claim 1 or 2 of the utility model registration claim, in which the decorative sheet and the reinforcing sheet are partially laminated to avoid the position where they overlap with the band-shaped cut-off piece. .