JP5970996B2 - Sheet roll packaging - Google Patents

Description

  The present invention relates to a sheet roll package. More specifically, the package of the present invention includes a film for packaging a plurality of sheet rolls, and a perforation line that is opened when the sheet roll is taken out is formed on the film.

  Conventionally, sheet rolls in which sanitary paper such as kitchen paper and toilet paper are rolled are widely known. In general, a plurality of such sheet rolls are packaged and wrapped in a film, and the sanitary state is maintained so that dust and dirt do not adhere. A package in which a plurality of sheet rolls are packaged with a film is, for example, conveyed by a vehicle and then displayed and sold at a store.

  In addition, it is known that a film for packaging a plurality of sheet rolls is provided with a cut line such as a perforation for opening. Thus, by providing a cut line in the film, the film can be torn along the cut line when the package is opened, and the sheet roll can be taken out from the package.

As a technique regarding the score line provided in the film of the package, for example, those disclosed in Patent Document 1 and Patent Document 2 are known.
In Patent Document 1, a roll of kitchen paper is covered with a film in a state where the end surfaces thereof are lined up and down, and a perforation line for opening is provided on the film along the vertical direction of the kitchen paper. A package of kitchen paper is disclosed.
Patent Document 2 covers a sanitary sheet roll so that the MD (Machine Direction) direction of the film is along the axial direction of the sanitary sheet roll, and along the MD direction of the film. , A package for a sanitary sheet roll provided with a tear opening for opening is disclosed.

  In all of the packages disclosed in these documents, an opening line for opening is provided in a portion of a film stretched between adjacent sheet rolls. That is, since the sheet roll is cylindrical or columnar, when a plurality of sheet rolls are arranged and packaged with a film, the film is stretched between adjacent sheet rolls and does not directly contact the sheet roll. (Non-contact area) is made. The packaging body disclosed in the above document is provided with a cut line for opening in a non-contact area of the film.

JP 2003-104449 A JP 2009-202931 A

  However, as in the invention disclosed in the above document, when a perforation line for opening is provided in a film area (non-contact area) that is stretched between adjacent sheet rolls and does not directly contact the sheet roll, When a pressing force is applied to the non-contact area, the opening perforation line is unintentionally broken. That is, in this non-contact area, a constant tension is applied to the film, and there is a space between the surface of the sheet roll, so that the perforation line provided in this non-contact area is slightly Even if it is an impact or a pressing force, it is easy to break.

  For this reason, when a packaging body in which a plurality of sheet rolls are wrapped with a film is transported by a vehicle or displayed in a store, for example, the opening perforation line is likely to break unintentionally. . If the film is inadvertently torn in an unintended situation, unnecessary gaps and crevices are created in the film, making it impossible to completely cover other unused sheet rolls. Then, if dust or dirt adheres to the sheet roll from gaps or tears generated in such a film, the sheet roll cannot be maintained in a sanitary state. In particular, sheet rolls wrapped with film are often sanitary paper such as kitchen paper and toilet paper, and if unused sheet rolls cannot be maintained in a sanitary state, the quality of the sheet roll itself is impaired. Problem arises. Therefore, the package in which the opening perforation line is partially broken has a problem in that it has no value as a product and is treated as a defective product.

  Therefore, at present, there is a demand for a sheet roll package that can prevent the opening perforation line from being inadvertently broken in situations such as when a product is being conveyed or displayed.

In view of this, the present inventor has intensively studied to solve the above-described problems of the prior art, and as a result, in a state where a plurality of sheet rolls are packaged with a film, the film region (abutment with the peripheral surface of the sheet roll). It was found that by providing an opening perforation line in the area, it is possible to effectively prevent the opening perforation line from unintentionally breaking. The inventor has conceived that the problems of the prior art can be solved based on the above knowledge, and has completed the present invention.
More specifically, the present invention has the following configuration.

The first aspect of the present invention relates to a package in which a plurality of sheet rolls 10 are packaged with a film 20. That is, the film 20 wraps a plurality of sheet rolls 10 arranged in parallel so that the peripheral surfaces are in contact with each other.
The film 20 covers the peripheral side surface 21 covering the peripheral surface of the sheet roll, the top surface 22 covering the upper end surface of the sheet roll continuously with the peripheral side surface, and the lower end surface of the sheet roll continuously with the peripheral side surface. A bottom surface 23 is provided.
The peripheral side surface 21 of this film is stretched between the contact region 21a that contacts the peripheral surface of the sheet roll and the adjacent sheet roll in a state where the peripheral surface of the sheet roll is covered. It is divided into a non-contact area 21b that does not contact.
In the present invention, an opening perforation line 24 extending in the axial direction of the sheet roll is formed in at least one of the contact areas 21a. The opening perforation line 24 may extend so as to coincide with the axial direction of the sheet roll, or may be inclined at a predetermined angle with respect to the axial direction. Any of a shape, a zigzag line shape, etc. may be sufficient.

  As described above, in the package of the present invention, the opening perforation line 24 is formed in the contact area 21a that directly contacts the peripheral surface of the sheet roll, of the peripheral surface of the film. Since the contact area 21a is in contact with the peripheral surface of the sheet roll, the opening perforation line 24 is provided in the contact area 21a, so that a pressing force is applied to the opening perforation line 24. However, the opening perforation line 24 is not easily broken. Therefore, by forming the opening perforation line 24 in the contact area 21a, it is possible to prevent the opening perforation line from being carelessly broken in situations such as when a product is being conveyed or displayed.

  In the package of the present invention, the opening perforation line 24 is preferably formed in a straight line extending along the axial direction of the sheet roll.

  Generally, when a sheet roll is packaged with a film, the MD (Machine Direction) direction of the film is made to coincide with the axial direction of the sheet roll. The MD direction of the film is a flow direction (extrusion direction) at the time of film production, and a general film has a property that it is easy to tear in the MD direction. For this reason, as in the above configuration, the opening perforation line 24 is formed in a straight line extending along the axial direction of the sheet roll, so that when the consumer takes out the sheet roll, the opening perforation line 24 is formed. It becomes easy to break.

  In the package of the present invention, it is preferable that the opening perforation line 24 is not formed in the non-contact area 21b.

  As described above, the opening perforation line 24 provided in the non-contact area 21b of the film may be accidentally broken. In the present invention, since the opening perforation line 24 is provided in the contact area 21a of the film, it is not necessary to provide the opening perforation line 24 in the non-contact area 21b.

  In the package of the present invention, a first auxiliary perforation line 26 extending in the circumferential direction perpendicular to the axial direction of the sheet roll may be further formed in the film contact area 21a. In this case, the first auxiliary perforation line 26 preferably intersects with the opening perforation line 24.

  In the present invention, as described above, the opening perforation line 24 is made difficult to break by forming the opening perforation line 24 in the contact area 21a of the film. This prevents the opening perforation line 24 from being inadvertently broken and prevents the occurrence of defective products, but makes it difficult for consumers to break the opening perforation line 24 when using the sheet roll. There is a fear. Therefore, by providing the first auxiliary perforation line 26 in the direction orthogonal to the opening perforation line 24 as described above, when the consumer uses the sheet roll, the first auxiliary perforation line 26 is opened together with the first auxiliary perforation line 26. The perforation line 24 is easily broken. As a result, the opening perforation line 24 is easily broken when necessary, while preventing the opening perforation line 24 from being inadvertently broken. Can meet the requirements at the same time.

  In the packaging body of the present invention, one or a plurality of second auxiliary perforations 27 may be further formed in the film contact area 21a. In this case, the second auxiliary perforation line 27 intersects with the opening perforation line 24 and the first auxiliary perforation line 26, and is inclined at a predetermined angle with respect to the opening perforation line 24 and the first auxiliary perforation line 26. It is preferable to be provided.

  As described above, by providing the second auxiliary perforation line 27 in the film contact area 21a, for example, the film contact area 21a has vertical, horizontal and oblique perforations. Will be provided. Thus, by providing three or more perforations, the opening perforation line 24 can be easily broken together with the first auxiliary perforation line 26 and the second auxiliary perforation line 27 when the consumer uses the sheet roll. Become. Therefore, the consumer can take out the sheet roll wrapped in the film without stress.

The second aspect of the present invention relates to a film for wrapping a plurality of sheet rolls 10 arranged in parallel so that peripheral surfaces are in contact with each other.
The film of the present invention includes a peripheral side surface 21 covering the peripheral surface of the sheet roll, a top surface 22 covering the upper end surface of the sheet roll continuously with the peripheral side surface, and a lower end surface of the sheet roll continuously with the peripheral side surface. It has a bottom surface 23 to cover.
The peripheral side surface 21 of this film is stretched between the contact region 21a that contacts the peripheral surface of the sheet roll and the adjacent sheet roll in a state where the peripheral surface of the sheet roll is covered. It is divided into a non-contact area 21b that does not contact.
In the present invention, an opening perforation line 24 extending in the axial direction of the sheet roll is formed in at least one of the contact areas 21a.

  According to the film of the second aspect of the present invention, a plurality of sheet rolls can be provided while preventing the opening perforation line from being inadvertently broken in situations such as when goods are being conveyed or displayed. Can be packaged.

  In the present invention, an opening perforation line 24 is provided in the contact area 21a that directly contacts the peripheral surface of the sheet roll in the peripheral surface of the film. Since the contact area 21a is in contact with the peripheral surface of the sheet roll, a pressing force is applied to the opening perforation line 24 by providing the opening perforation line 24 in the contact area 21a. Even so, the opening perforation line 24 is less likely to break. Therefore, by forming the opening perforation line 24 in the contact area 21a, it is possible to prevent the opening perforation line from being carelessly broken in situations such as when a product is being conveyed or displayed.

FIG. 1 is a perspective view showing a package according to the first embodiment. FIG. 2 is a development view of the film constituting the package. 3 is a cross-sectional view taken along line X1-X1 in FIG. FIG. 4 is a perspective view showing a package according to the second embodiment. FIG. 5 is a sectional view taken along line X2-X2 in FIG. FIG. 6 is a perspective view showing a package according to the third embodiment. FIG. 7 is a development view of the film constituting the package. FIG. 8 is a perspective view showing a package according to the fourth embodiment. FIG. 9 is a development view of the film constituting the package.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below, but includes those appropriately modified by those skilled in the art from the following embodiments.
In the present specification, the axial direction of the sheet roll is a direction perpendicular to the end face, in other words, the vertical direction of the sheet roll when the end face is placed on a horizontal ground. Further, the circumferential direction of the sheet roll means a direction around the center axis of the sheet roll.
In the present specification, “A to B” means “A or more and B or less” unless otherwise specified.

(1. First embodiment)
FIG. 1 is a perspective view showing a package 100 according to the first embodiment of the present invention. FIG. 2 is a development view showing the package 100 according to the first embodiment of the present invention. In FIG. 2, the film 20 is unfolded and flattened, and a state in which a plurality of sheet rolls arranged in parallel with the unfolded film 20 is placed is schematically shown. In FIG. 2, the plurality of sheet rolls are conceptually indicated by dotted lines. 3 is a cross-sectional view taken along line X1-X1 shown in FIG.

  As shown in FIG. 1, a plurality of parallel sheet rolls 10 are covered with a film 20. FIG. 1 shows an example in which two sheet rolls 10 are packaged with a film 20 in a state where they are arranged side by side. In the example shown in FIG. 1, the peripheral surfaces 11 of the two sheet rolls 10 are adjacent to each other. Thus, in the example of FIG. 1, the two sheet rolls 10 are arranged in two horizontal rows. However, the number of the sheet rolls 10 arranged in parallel and the parallel mode of the plurality of sheet rolls 10 are not limited to this. That is, the number of sheet rolls 10 arranged in parallel may be two, three, or four or more. Further, the plurality of sheet rolls 10 may be arranged in two or more layers.

  The kind of the sheet roll 10 packaged by the film 20 is not particularly limited, and various types can be adopted as long as it is a columnar or cylindrical object. As a kind of sheet roll, for example, a sheet-like sanitary paper is wound into a roll shape to form a cylindrical shape, or an adhesive tape is wound into a roll shape to form a cylindrical shape. Examples of sanitary paper are tissue paper, moisturizing tissue paper, dust paper, paper towels, kitchen towels, kitchen sheets, cooking sheets, or toilet paper. Examples of the adhesive tape are cellophane tape, kraft adhesive tape (paper gum tape), cloth adhesive tape (cloth gum tape), stretched polypropylene adhesive tape (transparent gum tape), aluminum tape, or soft polyvinyl chloride tape.

  As shown in FIG. 1, a plurality of sheet rolls 10 are packaged by a film 20. The film 20 has a peripheral side surface 21, a top surface 22, and a bottom surface 23 according to the position where the sheet roll 10 is covered. The peripheral side surface 21 of the film 20 is a portion that covers the peripheral surface 11 side of the plurality of sheet rolls 10. The peripheral side surface 21 of the film 20 covers the peripheral surface 11 of the sheet roll 10 so that the MD direction of the film coincides with the axial direction of the sheet roll. Further, the circumferential side surface 21 of the film 20 is such that the CD direction of the film coincides with the circumferential direction of the sheet roll. The top surface 22 of the film 20 is continuous with the peripheral side surface 21 and is a portion that covers the upper end surface 12 side of the plurality of sheet rolls 10. The bottom surface 23 of the film 20 is continuous with the peripheral side surface 21 and is a portion that covers the lower end surface 13 side of the plurality of sheet rolls 10.

  The packaging mode by the film 20 can be achieved by, for example, a known method as shown in FIG. The packaging mode shown in FIG. 1 is also called caramel packaging among those skilled in the art. In caramel packaging, first, a sheet roll placed on a flat film is wrapped so as to be wrapped, and the overlapping portions in the winding direction are bonded. Next, the excess portion beyond the end surface position of the sheet roll is folded to the end surface side of the sheet roll. And the tip edge part of the triangular piece or trapezoid piece formed at the time of folding is adhere | attached, and a sheet roll is coat | covered from the up-and-down end surface side. As a device for carrying out such caramel packaging, a known device can be used.

That is, when packaging a plurality of sheet rolls 10, the films 20 are first arranged in parallel so that the MD direction thereof coincides with the axial direction of the sheet roll 10 and the CD direction thereof coincides with the circumferential direction of the sheet roll 10. The peripheral surface 11 of the sheet roll 10 is covered.
The “MD direction of the film” is an extrusion direction at the time of film production, and the general film 20 has a property of being easily split in the MD direction. On the other hand, the CD direction of the film is a direction orthogonal to the MD direction described above, and a general film has a property that it is difficult to tear in the CD direction. In the development view shown in FIG. 2, the axial center direction of the sheet roll 10 is the vertical direction of FIG. For this reason, the film 20 covers the peripheral surfaces 11 of the plurality of sheet rolls 10 arranged in parallel so that the MD direction of the film coincides with the vertical direction of FIG. As shown in FIG. 2, the portion covering the peripheral surface 11 of the plurality of sheet rolls 10 arranged in parallel is the peripheral side surface 21 of the film 20.

  As shown in FIG. 2, after winding the peripheral side surface 21 of the film 20 around the peripheral surface 11 of the plurality of sheet rolls 10, the surplus portions are overlapped around the peripheral surface 11 of the plurality of sheet rolls 10, The overlapping portion 25 is bonded. The overlapping portion 25 may be bonded by a bonding method using a hot-melt adhesive or other fluid adhesive, or may be bonded by heat welding such as heat sealing or ultrasonic welding.

  After the peripheral surface 11 of the sheet roll 10 is covered with the peripheral side surface 21 of the film 20, the leading edge portions 22 a and 23 a of the film 20 surpassing the upper end surface 12 and the lower end surface 13 of the sheet roll 10 are removed. The roll 10 is folded so as to be in contact with the upper end surface 12 and the lower end surface 13. At this time, the leading edge portions 22a and 23a of the film 20 may be folded into a trapezoid as shown in FIGS. 1 and 2, or may be folded into another triangle or the like. And the location where the front-end edge parts 22a and 23a of the folded film 20 overlap is adhere | attached, and the adhesion part 22b as shown in FIG. 1 is formed. As a bonding method in the bonding part 22b, as described above, a bonding method using a hot melt adhesive or heat seal can be employed. Thus, a top surface 22 that is connected to the peripheral side surface 21 and covers the upper end surface 12 of the sheet roll and a bottom surface 23 that is connected to the peripheral side surface 21 and covers the lower end surface 13 of the sheet roll are formed on the film 20.

  Thus, the film 20 is packaged by covering a plurality of sheet rolls 10 arranged in parallel with appropriate tension. Accordingly, as shown in FIGS. 1 to 3, the peripheral side surface 21 of the film 20 is in contact with the peripheral surface 11 of the sheet roll 10 in a state of covering the peripheral surface of the sheet roll 10. And a non-contact area 21b which is stretched between adjacent sheet rolls and does not contact the peripheral surface of the sheet roll. That is, a space is formed between the non-contact area 21b of the film and the peripheral surface 11 of the sheet roll. As shown in FIG. 1 and FIG. 3, in the present embodiment in which two sheet rolls 10 are arranged side by side, the contact area 21a and the non-contact area 21b are alternately formed at two locations. Yes.

  More specifically, as shown in the cross-sectional view of FIG. 3, in the present embodiment in which two sheet rolls 10 are arranged in a plane, the length in the circumferential direction of one contact region 21a is: This corresponds to about half of the circumference of each sheet roll 10. In addition, the height (length in the axial direction) of the contact area 21 a of the film 20 matches the height of the sheet roll 10. For this reason, the area of one contact region 21a is 2πrh / a (π is the circumference ratio, r is the radius of the sheet roll, h is the height of the sheet roll (in the case where the sheet roll has a plurality of upper and lower stages) The overall height of the plurality of stages) and a can be obtained from the number of sheet rolls arranged in a plane.

  As described above, the plurality of sheet rolls 10 arranged in parallel can be covered with the film 20. However, the packaging form of the sheet roll 10 described above is an example, and is not limited to the above-described form, and various known forms can be employed.

  Next, a structure for opening the package 100 when the sheet roll is taken out will be described. As shown in FIGS. 1 and 2, an opening perforation line 24 that is cleaved when the sheet roll 10 is taken out is formed on the peripheral side surface 21 of the film 20. In the present invention, the opening perforation line 24 is provided in the contact area 21 a that directly contacts the peripheral surface 11 of the sheet roll 10, among the peripheral side surfaces 21 of the film 20. An opening perforation line 24 provided in the contact area 21a extends in the axial direction of the sheet roll 10 to be packaged. Further, in the present invention, the opening perforation line 24 is stretched between adjacent sheet rolls on the peripheral side surface 21 of the film 20 and does not directly contact the peripheral surface 11 of the sheet roll 10. The area 21b is not provided.

  As described above, in the package of the present invention, the opening perforation line 24 is formed only in the contact region 21 a that directly contacts the peripheral surface 11 of the sheet roll 10, of the peripheral surface 21 of the film 20. . Since the contact area 21a is in contact with the peripheral surface of the sheet roll, when the opening perforation line 24 is provided in the contact area 21a, a pressing force is applied to the opening perforation line 24. Even if it exists, the perforation line 24 for opening becomes difficult to fracture | rupture. Therefore, by forming the opening perforation line 24 in the contact area 21a, it is possible to prevent the opening perforation line from being carelessly broken in situations such as when a product is being conveyed or displayed.

  Further, consider a situation in which the opening perforation line 24 is broken to take out one sheet roll from the film 20 and the other sheet roll is packaged and stored in the film 20. In such a situation, compared to the case where the perforation line 24 for opening is provided in the non-contact area 21b that does not contact the peripheral surface 11 of the sheet roll 10 in the peripheral side surface 21 of the film 20 as in the conventional technique, When the opening perforation line 24 is provided in the contact area 21a of the sheet roll 10 as in the invention, the distance between the broken opening perforation line 24 and the stored film 20 is increased. As in the present invention, by separating the broken opening perforation line 24 and the stored film 20 as much as possible, dust or dust has entered from the broken opening perforation line 24. However, there is an increased possibility that these dusts can be prevented from adhering to the stored sheet roll. Therefore, the opening perforation line 24 in the contact area 21a of the film 20 as in the present invention is more hygienic than the opening perforation line 24 in the non-contact area 21b of the film as in the prior art. It can be said that.

  As shown in FIGS. 1 and 2, the opening perforation line 24 formed in the contact area 21 a of the film 20 is formed linearly along the MD direction of the film 20. It is preferable. Since the opening perforation line 24 is formed in a straight line that matches the MD direction of the film 20, the opening perforation line 24 is easily broken at the time of opening. The sheet roll 10 can be easily taken out.

  Further, as shown in FIG. 2, the opening perforation line 24 is preferably formed over substantially the entire peripheral side surface 21 of the film 20 in the MD direction of the film 20. For example, the length of the opening perforation line 24 may be 80% to 100% or 90 to 100% with respect to the length of the peripheral side surface 21 of the film 20 in the MD direction. Thereby, it becomes easy to take out each sheet roll 10 wrapped by the film 20 by breaking the perforation line 24 for opening. However, the length of the opening perforation line 24 may be about 40% to 80%, or about 50% to 70% with respect to the length of the peripheral side surface 21 of the film 20 in the MD direction.

  In addition, as shown in FIGS. 2 and 3, in the present embodiment in which two sheet rolls 10 are arranged in parallel, the contact area 21 a of the film 20 corresponds to each of the sheet rolls 10. It is formed one by one (two places in total). In such a case, it is preferable to provide the opening perforation line 24 in both of the two contact areas 21a. Thereby, a consumer can take out a favorite one out of the two sheet rolls 10 wrapped by the film 20 and can use it first. For example, when each sheet roll has individuality, such as when the colors of the two sheet rolls 10 wrapped by the film 20 are different from each other, the opening perforation lines 24 may be provided in each of the plurality of contact areas 21a. . However, the opening perforation line 24 may be provided in at least one of the plurality of contact areas 21a when the contact areas 21a are formed at a plurality of locations.

  Further, as shown in FIG. 3, when the cross section of the package 100 is viewed, the opening perforation line 24 is formed at a position including the apex (circumferential apex) of the arc formed by the contact area 21a. Is preferred. The apex (circumferential apex) of the arc formed by the contact region 21a is the portion where the consumer is most likely to apply force in the direction in which the opening perforation line 24 is broken. For this reason, by providing the opening perforation line 24 at a position including the peripheral top, it is easy to break the opening perforation line 24 when necessary while preventing the opening perforation line 24 from being inadvertently broken. Become.

  However, the form of the opening perforation line 24 shown in FIGS. 1 to 3 is an example, and the present invention is not limited to this example. For example, the opening perforation line 24 may be inclined at a predetermined angle with respect to the MD direction of the film 20. Examples of the predetermined angle include 10 degrees to 45 degrees. Further, the shape of the opening perforation line 24 is not limited to a straight line, and may be, for example, a wavy line or a zigzag line.

  Next, the film 20 for packaging a plurality of sheet rolls 10 will be described. Examples of the film 20 employed in the present invention include polyethylene films such as HDPE (high density polyethylene) film, LDPE (low density polyethylene) film, LLDPE (linear low density polyethylene) film, polystyrene film, polypropylene film, and the like. Or these laminated | multilayer films are mentioned. Moreover, the method of manufacturing the film 20 is not particularly limited, and an appropriate known manufacturing method may be adopted depending on the type of resin used as the raw material of the film 20. For example, as a method for manufacturing the film 20, an extrusion method such as a T-die method can be cited. When the film 20 has a laminated structure, for example, an extrusion laminating method may be employed.

  The thickness of the film 20 is preferably 10 to 80 μm, for example. If the thickness of the film 20 exceeds 80 μm, the tearability becomes insufficient and the opening operation may be difficult. Moreover, when the thickness of the film 20 is less than 10 μm, the strength of the film is not sufficient, and the risk of inadvertent breakage increases.

  The tear strength of the film 20 is preferably 100 to 800 cN. The tear strength here is the strength when tearing in the MD direction when measured at 200 mm / min according to JIS K 7128 (trouser tear method). If the tear strength is less than 100 cN, there is a risk of inadvertent tearing, and if it exceeds 800 cN, it is difficult to open the package.

  Furthermore, it is desirable that the elongation rate of the film 20 is 100 to 700%. Here, the elongation ratio of the film is an elongation ratio in the MD direction of the film 20 measured according to JIS K 7127 at a test piece width of 15 mm, a distance between chucks of 50 mm, and a speed of 300 mm / min. If the elongation rate of the film 20 is less than 100%, sufficient strength is difficult to obtain, and the handleability is inferior. If the elongation of the film 20 exceeds 700%, the film 20 is stretched at the time of opening, making it difficult to open, or the shape of the package tends to collapse, and the transportability and handling properties deteriorate.

(2. Second form)
Next, a second embodiment of the present invention will be described with reference to FIGS. Here, the package according to the second embodiment will be described focusing on differences from the first embodiment described above. 4 and 5, the same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 4 shows an example in which four sheet rolls 10 are arranged in parallel and wrapped with a film 20. In the example shown in FIG. 4, the four sheet rolls 10 are arranged in parallel in two columns and two rows so that the peripheral side surfaces of the four sheet rolls 10 are adjacent to each other. Thus, the number of sheet rolls 10 to be packaged by the film 20 can be appropriately selected according to the type and application of the sheet roll 10.

FIG. 5 shows a cross-sectional view taken along line X2-X2 shown in FIG.
The film 20 is packaged by covering four sheet rolls 10 arranged side by side with appropriate tension. Therefore, as shown in FIG. 5, the peripheral side surface 21 of the film 20 has a contact area 21 a that directly contacts the peripheral surface 11 of the sheet roll 10 in a state where the peripheral surface of the sheet roll is covered, It is divided into a non-contact area 21b that is stretched between adjacent sheet rolls and does not contact the peripheral surface of the sheet roll. As shown in FIG. 5, in the present embodiment in which four sheet rolls 10 are arranged side by side, the contact areas 21a and the non-contact areas 21b are alternately formed at four locations. Further, in the present embodiment in which the four sheet rolls 10 are arranged side by side, the length of one contact region 21a in the circumferential direction is about ¼ of the circumferential length of each sheet roll 10. It corresponds.

In any one or more of the four contact regions 21a formed on the peripheral side surface 21 of the film 20,
An opening perforation line 24 is provided. That is, as shown in FIG. 5, the opening perforation line 24 may be provided in all of the four contact areas 21a. For example, only the two contact areas 21a located diagonally may be provided with the opening perforation line. 24 may be provided. Further, the number of contact areas 21a where the opening perforation line 24 is provided may be one or three. In addition, the shape and position of the opening perforation line 24 can be the same as those in the first embodiment described above.

(3. Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. Here, the packaging body according to the third embodiment will be described with a focus on differences from the first embodiment described above. FIG. 6 is a perspective view showing the packaging body 100 of the third embodiment, and FIG. 7 is a development view of the film 20 of the packaging body.

  As shown in FIG. 6, in the third embodiment, the end surfaces of the two sheet rolls 10 are in contact with each other to form a two-tiered stack, and the circumferential surfaces of the two-tiered sheet rolls 10 are adjacent to each other. ing. That is, in the example of FIG. 6, the four sheet rolls 10 are packaged by the film 20 in a state of two rows and two rows. In this way, the sheet rolls 10 arranged in a plane can be wrapped with the film 20 in a state where a plurality of the sheet rolls 10 are stacked. In addition, although illustration is abbreviate | omitted, a sheet | seat roll may be stacked by three or more steps up and down.

  Also in the present embodiment, in the same manner as in the first embodiment described above, the MD direction of the film (the sheet roll) is formed in the contact area 21a of the peripheral surface 21 of the film 20 that contacts the peripheral surface 11 of the sheet roll 10. An opening perforation line 24 extending in the axial direction is formed. In the present embodiment, the first auxiliary perforation line 26 extending in the CD direction of the film (the circumferential direction of the sheet roll) is formed in the contact area 21a of the film 20.

  As shown in the developed view of FIG. 7, the first auxiliary perforation line 26 is a perforation line extending in the CD direction of the film 20. Specifically, the first auxiliary perforation line 26 is linear and extends in a direction orthogonal to the opening perforation line 24 by 90 degrees. Further, the length of the first auxiliary perforation line 26 is such that the length falls within the contact area 21a. That is, the length of the first auxiliary perforation line 26 is about 5% to 100%, 10 to 90%, 30% to 70%, or 40% to 60% with respect to the width of the contact area 21a in the CD direction. Become.

  The first auxiliary perforation line 26 is formed at a position intersecting with the opening perforation line 24. In particular, as in the present embodiment, when the two sheet roll 10 end faces are in contact with each other and are stacked in a plurality of stages, the first auxiliary perforation line 26 and the opening perforation line 24 are formed between the end faces of the sheet roll 10. It is preferable to cross at a position that coincides with the boundary 10a.

  The first auxiliary perforation line 26 is a perforation line that is broken together with the opening perforation line 24 when the film 20 is opened, so that the sheet roll 10 packaged in the film 20 can be easily taken out. In the present invention, as described above, the opening perforation line 24 is made difficult to break by forming the opening perforation line 24 in the contact area 21a of the film. This prevents the opening perforation line 24 from being inadvertently broken and prevents the occurrence of defective products, but makes it difficult for consumers to break the opening perforation line 24 when using the sheet roll. There is a fear. Therefore, as described above, the first auxiliary perforation line 26 is provided so as to intersect perpendicularly with the opening perforation line 24, so that when the consumer uses the sheet roll, the first auxiliary perforation line 26 is provided. At the same time, the opening perforation line 24 can be easily broken. This prevents the opening perforation line 24 from being inadvertently broken, and makes it easier for the opening perforation line 24 to break when necessary. Therefore, there is a demand for products to be sold and a demand for products to be consumed. Can be charged at the same time.

  In particular, when a plurality of sheet rolls 10 are stacked in a plurality of layers vertically, the first auxiliary perforation line 26 and the opening perforation line 24 intersect at a position that coincides with the boundary 10a between the end faces of the sheet roll 10. By doing so, the first auxiliary perforation line 26 is more easily broken. That is, when the consumer grips the sheet rolls 10 that overlap each other and applies a twisting force to shift the end faces of the respective sheet rolls, first, the consumer is provided at a position that coincides with the boundary 10a between the end faces. A part of the first auxiliary perforation line 26 is broken. Then, if the broken portion of the first auxiliary perforation line 26 is used as a trigger, then the consumer can easily break the opening perforation line 24 extending in the vertical direction. With such a simple procedure, the opening perforation line 24 can be broken and the sheet roll 10 in the film 20 can be taken out, so the first auxiliary perforation line 26 and the opening perforation line 24 are It is preferable to intersect at a position that coincides with the boundary 10a between the roll 10 end faces.

(4. Fourth embodiment)
Subsequently, a fourth embodiment of the present invention will be described with reference to FIGS. The fourth embodiment is a further improvement of the third embodiment described above. FIG. 8 is a perspective view showing the package 100 according to the fourth embodiment, and FIG. 9 is a development view of the film of the package 100.

  As shown in FIGS. 8 and 9, also in the fourth embodiment, in the same manner as in the third embodiment, the first auxiliary line orthogonal to the opening perforation line 24 is formed in the contact area 21a of the film 20. A perforation line 26 is provided. In the fourth embodiment, two second perforation lines 27 intersecting with the opening perforation line 24 and the first auxiliary perforation line 26 are further formed in the contact area 21 a of the film 20. Yes.

  As shown in the development view of FIG. 9, the two second auxiliary perforation lines 27 do not overlap with the opening perforation line 24 and the first auxiliary perforation line 26, respectively. It is inclined at a predetermined angle. The angle formed between each second auxiliary perforation line 27 and the opening perforation line 24 may be, for example, 10 degrees to 80 degrees, or 30 degrees to 60 degrees, and particularly about 45 degrees (± 2 degrees). Is preferred. In the example shown in FIG. 9, the two second auxiliary perforation lines 27 intersect each other in an X shape, and each is inclined by about 45 degrees with respect to the opening perforation line 24.

  Each of the two second auxiliary perforation lines 27 has a length that can be accommodated in the contact area 21a. That is, the length of each second auxiliary perforation line 26 extending in the CD direction is 5% to 100%, 10 to 90%, 30% to 70%, or 40% with respect to the width of the contact region 21a in the CD direction. It is preferable to be about ˜60%.

  Further, as shown in FIG. 9, the opening perforation line 24, the first auxiliary perforation line 26, and the two second auxiliary perforation lines 27 intersect at one point. And when several sheet rolls 10 are piled up and stacked in multiple steps like this embodiment, the intersection of these perforation lines (24, 26, 27) is between sheet roll 10 end surfaces. It is preferable to be at a position that coincides with the boundary 10a.

  As in the fourth embodiment, in addition to the opening perforation line 24 and the first auxiliary perforation line 26, a second auxiliary perforation line 27 is provided in the film abutment area 21a. Perforated lines in the vertical direction, the horizontal direction, and the oblique direction are provided in the region 21a. In this way, by providing three or more perforations in the film contact area 21a, at least when the consumer pulls the film contact area 21a when taking out the sheet roll, at least One or more perforations will break. If even one perforation line provided in the film contact area 21a breaks, the consumer can easily break the opening perforation line 24 using the broken perforation line as a trigger. In this way, the consumer can take out the sheet roll wrapped in the film from the broken opening perforation line 24 without stress.

  In particular, in the case where a plurality of sheet rolls 10 are vertically stacked and packaged in a plurality of stages, the intersection of the opening perforation line 24, the first auxiliary perforation line 26, and the second auxiliary perforation line 27 is defined as the end surface of the sheet roll 10. By providing at a position that coincides with the boundary 10a between the consumers, the consumer can grasp the sheet rolls 10 that overlap each other and apply a twisting force so as to shift the end faces of the sheet rolls. Any one of 24, 26, and 27 can be easily broken. Accordingly, the consumer can take out the sheet roll 10 in the film 20 by breaking the opening perforation line 24 by a simple procedure.

  In the description of the fourth embodiment, an example in which two second auxiliary perforation lines 27 are provided has been described. However, the second auxiliary perforation line 27 may be one, or 3 More than this may be provided.

  The present invention has been described with reference to preferred embodiments. However, the present invention is not limited to the above-described embodiments, and those skilled in the art can make appropriate modifications and alterations within the obvious range based on the above-described embodiments.

For example, the present invention can be applied not only to the above-described packaging mode called caramel packaging but also to a so-called gusset packaging. The gusset packaging is, for example, a known packaging mode as shown in Patent Document 1 (Japanese Patent Laid-Open No. 2003-104449) and Patent Document 2 (Japanese Patent Laid-Open No. 2009-202931). That is, the gusset packaging is a packaging mode in which a plurality of sheet rolls are inserted into a cylindrical body having openings at both ends, both ends of the film protruding beyond the sheet roll are made into surplus margins, and the openings to which the surplus margins are bonded are sealed. It is.
Further, according to the present invention, a handle can be attached to a film in which a sheet roll is packaged by a known method. The handle may be formed, for example, by joining both ends of a strip-shaped handle film to the top, bottom, or peripheral side of the package.

  The present invention relates to a package in which a sheet roll is packaged with a film. For this reason, this invention can be utilized suitably in the manufacture industry of a package or a sheet roll.

DESCRIPTION OF SYMBOLS 10 Sheet roll 11 Peripheral surface 12 Upper end surface 13 Lower end surface 20 Film 21 Peripheral side surface 21a Contact area 21b Non-contact area 22 Top surface 22a Tip edge part 22b Adhesive part 23 Bottom face 23a Tip edge part 24 Unsealing perforation line 25 26 First auxiliary perforation line 27 Second auxiliary perforation line 100 Packaging

Claims (6)

A package (100) in which a plurality of sheet rolls (10) arranged in parallel so that the peripheral surfaces are in contact with each other is wrapped with a film (20),
The film (20)
A peripheral side surface (21) covering the peripheral surface of the sheet roll;
A top surface (22) that is continuous with the peripheral side surface and covers the upper end surface of the sheet roll;
A bottom surface (23) that is continuous with the peripheral side surface and covers the lower end surface of the sheet roll;
In the state where the peripheral side surface (21) of the film covers the peripheral surface of the sheet roll,
A contact region (21a) that contacts the peripheral surface of the sheet roll;
It is stretched between adjacent sheet rolls, and is divided into non-contact areas (21b) that do not contact the peripheral surface of the sheet rolls,
An opening perforation line (24) extending in the axial direction of the sheet roll is formed in at least one of the contact areas (21a) ,
The opening perforation line (24) is formed only on the peripheral side surface (21) over the entire peripheral side surface (21) in the axial direction of the sheet roll . The packaging body according to claim 1, wherein the opening perforation line (24) is formed in a straight line extending along the axial direction of the sheet roll. The package according to claim 1 or claim 2, wherein the opening perforation line (24) is not formed in the non-contact area (21b). The contact area (21a) is further formed with a first auxiliary perforation line (26) extending in a circumferential direction orthogonal to the axial direction of the sheet roll,
The package according to any one of claims 1 to 3, wherein the first auxiliary perforation line (26) intersects with the opening perforation line (24). A package (100) in which a plurality of sheet rolls (10) arranged in parallel so that the peripheral surfaces are in contact with each other is wrapped with a film (20),
The film (20)
A peripheral side surface (21) covering the peripheral surface of the sheet roll;
A top surface (22) that is continuous with the peripheral side surface and covers the upper end surface of the sheet roll;
A bottom surface (23) that is continuous with the peripheral side surface and covers the lower end surface of the sheet roll;
In the state where the peripheral side surface (21) of the film covers the peripheral surface of the sheet roll,
A contact region (21a) that contacts the peripheral surface of the sheet roll;
It is stretched between adjacent sheet rolls, and is divided into non-contact areas (21b) that do not contact the peripheral surface of the sheet rolls,
An opening perforation line (24) extending in the axial direction of the sheet roll is formed in at least one of the contact areas (21a),
The contact area (21a) includes a first auxiliary perforation line (26) extending in a circumferential direction perpendicular to the axial direction of the sheet roll and intersecting the opening perforation line (24), and one or a plurality of second perforations . An auxiliary perforation line (27) is further formed;
The second auxiliary perforation line (27) is:
Intersects the opening perforation line (24) and the first auxiliary perforation line (26), and
A package provided to be inclined at a predetermined angle with respect to the opening perforation line (24) and the first auxiliary perforation line (26). A film (20) for wrapping a plurality of sheet rolls (10) arranged in parallel so that the peripheral surfaces are in contact with each other,
A peripheral side surface (21) covering the peripheral surface of the sheet roll;
A top surface (22) that is continuous with the peripheral side surface and covers the upper end surface of the sheet roll;
A bottom surface (23) connected to the peripheral side surface and covering the lower end surface of the sheet roll;
In the state where the peripheral side surface (21) of the film covers the peripheral surface of the sheet roll,
A contact region (21a) that contacts the peripheral surface of the sheet roll;
It is stretched between adjacent sheet rolls, and is divided into non-contact areas (21b) that do not contact the peripheral surface of the sheet rolls,
An opening perforation line (24) extending in the axial direction of the sheet roll is formed in at least one of the contact areas (21a) ,
The opening perforation line (24) is a film formed only on the peripheral side surface (21) over the entire peripheral side surface (21) in the axial direction of the sheet roll .

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