JP2010202275A - Package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a package for disposable paper product which can be opened by easily and securely breaking a packaging film along a position where an opening tape is placed while effectively preventing the packaging film from being stretched along with the opening tape when the opening tape is pulled. <P>SOLUTION: The package 1A includes the disposable paper product 2A, the packaging film 4A which wraps the disposable paper product 2A, the opening tape 30A which is bonded together with the packaging film 4A, and a pressing member 32A which is fixed on the packaging film 4A with a smaller elongation rate than the packaging film 4A. The pressing member 32A is positioned along at least one side edge of the opening tape 30A. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a package in which a plurality of disposable paper products are integrally packaged by a packaging film. More specifically, the present invention relates to a package for disposable paper products provided with an opening tape for opening a packaging film.

  Disposable paper products such as roll-like sanitary paper (toilet paper, kitchen paper, towel paper, cooking sheets, etc.), sanitary paper with cartons (tissue paper, etc.), sanitary napkins, disposable diapers, etc. are integrated with multiple disposable paper products. It is commercially available in the state of a package packaged in the box.

  Usually, such a package is encapsulated by a packaging film in a state where a plurality of disposable paper products are laminated in multiple stages. And the packaging body which formed the perforation for opening in a packaging film is known in order to make opening of a packaging body and taking out of disposable paper products easy (refer patent documents 1-3).

  However, the perforations of these packages may be broken due to impact during production or transportation, and the packages may be opened unintentionally. In such a case, there is a problem that the packaging film is no longer used as a packaging material and the package becomes defective.

  Therefore, a package in which a separate opening tape is joined to the packaging film instead of the perforation has been proposed. For example, a packaging body in which an opening tape having a higher strength than the packaging film is attached to the inner surface of the packaging film is disclosed (see Patent Document 4). Moreover, the package body by which an opening tape is adhere | attached on the outer surface of a packaging film is also disclosed (refer patent document 5).

JP-A-8-104356 JP-A-8-244829 JP 2004-1802 A JP 2003-341724 A JP 2008-239222 A

  The package described in Patent Document 4 or 5 does not have a fragile portion that is easily broken such as a perforation, and is configured such that the packaging film is torn and broken only when the opening tape is pulled. . Therefore, it can be expected to effectively prevent a situation where the package is unintentionally opened.

  However, these packaging bodies are caused by the fact that the packaging film stretches following the opening tape when the opening tape is pulled, 1) the packaging film cannot be broken well, or 2) There was a problem that the packaging film could not be broken in the intended direction.

  The present invention has been made to solve the above-described problems of the prior art, and effectively prevents the packaging film from stretching following the opening tape when the opening tape is pulled. Disclosed is a disposable paper product packaging body capable of easily and reliably breaking a packaging film along the position of a tape and opening the packaging body.

  As a result of diligent investigations to solve the problems of the prior art as described above, the present inventor has more than the packaging film so as to be adjacent to the position of the opening tape in order to reinforce the packaging film that is flexible and easily stretched. The present invention has been completed by conceiving that the above problem can be solved by arranging a pressing member having a low expansion rate. Specifically, the following package is provided by the present invention.

[1] A disposable paper product, a packaging film enclosing the disposable paper product, an opening tape joined to the packaging film, and a pressing member fixed to the packaging film and having a lower expansion rate than the packaging film A package body in which the pressing member is disposed along at least one side edge of the opening tape.

[2] The package according to [1], wherein the pressing member is disposed along both side edges of the opening tape.

[3] The package according to [2], wherein the pressing member is formed in a frame shape.

  The package of the present invention effectively prevents the packaging film from stretching following the opening tape when the opening tape is pulled, and breaks the packaging film easily and reliably along the position of the opening tape. It is possible to open the package.

It is a schematic perspective view which shows typically one Embodiment of the package of this invention. It is a schematic sectional drawing which shows typically a part of A-A 'cross section of the package shown to FIG. 1A. It is a schematic sectional drawing which shows typically a part of B-B 'cross section of the package shown to FIG. 1A. It is a schematic perspective view which shows typically another embodiment of the package body of this invention. It is a schematic plan view which shows typically one form of the pressing member used for the package body of this invention. It is a schematic plan view which shows typically another form of the pressing member used for the package body of this invention. It is a schematic plan view which shows typically another form of the pressing member used for the package body of this invention. It is a schematic plan view which shows typically another form of the pressing member used for the package body of this invention typically.

  Hereinafter, the form for implementing the package of this invention is demonstrated concretely, referring drawings. However, the present invention broadly encompasses packages having the invention-specific matters, and is not limited to the following embodiments. For convenience of drawing, in FIG. 1B and FIG. 1C, the joint between the opening tape 30A and the packaging film 4A is discarded.

[1] Configuration of the package of the present invention:
The packaging body of the present invention is, for example, a disposable paper product 2A, a packaging film 4A enclosing the disposable paper product 2A, and an unsealed jointed to the packaging film 4A, as in the packaging body 1A shown in FIGS. 1A to 1C. A tape 30A and a pressing member 32A fixed to the packaging film 4A and having a lower expansion rate than the packaging film 4A are provided, and the pressing member 32A is disposed along at least one side edge of the opening tape 30A. Is.

  In the packaging body of the present invention, a part of the packaging film 4A is reinforced by a pressing member 32A having a lower expansion rate than the packaging film 4A, as in the packaging body 1A shown in FIGS. 1A to 1C. Therefore, even if the packaging film 4A is made of a material that is flexible and easily stretched, the stretching of the packaging film 4A located in the vicinity of the pressing member 32A is suppressed. Further, since the pressing member 32A is arranged along the opening tape 30A, it functions as a guide member when the opening tape 30A is pulled. Therefore, the packaging film 4A can be reliably broken in the intended direction.

[1-1] Holding member:
As shown in FIGS. 1A to 1C, the package of the present invention includes a pressing member 32A having a lower expansion rate than the packaging film 4A.

  The pressing member only needs to have a lower elongation rate than the packaging film 4A, and the constituent material is not particularly limited as long as the condition is satisfied. However, considering the ease of molding and fixing to packaging films, films (thickness less than 0.2 mm) and sheets (thickness) made of thermoplastic resin such as polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), etc. The thickness is preferably 0.2 mm or more.

  In addition, the specific value of an elongation rate is not specifically limited, What is necessary is just to use a relatively low elongation rate with respect to the packaging film to be used. For example, as a packaging film for roll-shaped toilet paper packaging, a polyethylene or polypropylene film having a thickness of 50 to 110 μm is often used. In this case, as the pressing member, a film made of the same material as the packaging film and having a thickness of 150 to 330 μm, which is three times the thickness of the packaging film, can be used. Similarly, a polyethylene or polypropylene film having a thickness of 10 to 35 μm is often used as a packaging film for tissue paper containing carton. In this case, as the pressing member, a film having the same material as the packaging film and a thickness of 30 to 105 μm, which is twice the thickness of the packaging film, can be used.

  As shown in FIG. 1A, the pressing member 32A needs to be disposed along at least one side edge of the opening tape 30A. Usually, since the opening tape is formed in a long shape, the pressing member is also formed in a long shape corresponding thereto. That is, “along at least one side edge of the opening tape” means to be disposed along the longitudinal direction of the opening tape. At this time, the pressing member is not necessarily formed to the same length as the opening tape. However, in order to ensure the effect of the pressing member, it is preferable that the opening tape has a length that covers at least a portion from the joining start end to the joining end with the packaging film.

  The specific shape of the pressing member is not particularly limited as long as it is disposed along at least one side edge of the opening tape. For example, as the simplest shape, an I-shaped (long strip shape) like a pressing member 32D shown in FIG. 3A can be exemplified. In this example, an I-shaped pressing member 32D is arranged along the right side edge of the opening tape 30 in the drawing.

  Further, as a modified example of the I-shaped pressing member 32D as shown in FIG. 3A, a U-shaped (U-shaped) member such as the pressing member 32E shown in FIG. In addition to the portion along the side edge of the opening tape 30, this shape is a shape in which the pressing member 32E protrudes so as to be orthogonal to the extension line of the opening tape 30. The holding member of this shape surrounds the joining start end E1 of the opening tape 30 and the packaging film 4 from the direction orthogonal to the extension line of the opening tape 30 as compared with the I-shaped holding member 32D as shown in FIG. 3A. You can hold it. Therefore, when the opening tape 30 is pulled, the pulling force is reliably transmitted to the joining start end E1, and the packaging film 4 can be easily broken. Further, since the extension of the cut of the packaging film 4 is stopped by the pressing member 32E also on the joining end E2 side, the packaging film 4 is not broken more than necessary.

  In addition, “joining start end” means one end of a joining portion that joins the opening tape and the packaging film, and means an end portion on the side where the breaking of the packaging film by the opening tape is started. “Terminal” means the other end of the joint, and the end on the side where the breaking of the packaging film by the opening tape ends. For example, in the example shown in FIGS. 3A to 3D, since the opening (breaking) of the packaging film 4 by the opening tape 30 is started by pulling the tab 34, the joining end closer to the tab 34 becomes the joining start end E <b> 1. . In the example shown in FIGS. 3B and 3D, the joining end E2 is located on the back side of the pressing members 32E and 32H.

  In the package of the present invention, as shown in FIG. 3C, the pressing members 32 </ b> F and 32 </ b> G are preferably disposed along both side edges of the opening tape 30. In this embodiment, the holding members 32F and 32G arranged on both side edges of the opening tape 30 can cause the tensile force acting on the opening tape 30 to be concentrated on the region between the holding members 32F and 32G, and the packaging film It is possible to effectively prevent 4 from being broken in an unintended direction. That is, the effect of breaking the packaging film 4 along the arrangement position of the opening tape 30 is further excellent as compared with the embodiment shown in FIGS. 3A and 3B. 3C shows an example in which I-shaped holding members 32F and 32G similar to those in FIG. 3A are arranged on the left and right sides of the opening tape 30, respectively.

  In the package of the present invention, as shown in FIG. 3D, the pressing member 32H is preferably formed in a frame shape. The packaging body 1A shown in FIGS. 1A to 1C and the packaging body 1B shown in FIG. 2 also adopt this form, and include pressing members 32A and 32B formed in a frame shape. In this form, as shown in FIG. 3B, the pressing member 32E is formed in a U-shape (U-shape), and as shown in FIG. 3C, the pressing members 32F and 32G are arranged along both side edges of the opening tape 30. It can also be said to be a form combining the form to be arranged, and has the effects of both forms. That is, the tensile force can be reliably transmitted on the joining start end E1 side of the opening tape 30, and the discontinuity of the packaging film 4 does not extend more than necessary on the joining end E2 side, and the arrangement position of the opening tape 30 The effect of breaking the packaging film 4 along the line is further excellent.

  The pressing member is fixed to the packaging film so as not to be easily peeled off by means such as adhesion by an adhesive, fusion by heating (heat sealing), fusion by ultrasonic waves, or the like. 1B and 1C, the entire surface of the pressing member 32A is joined and fixed to the packaging film 4A by a joining portion indicated by “x” in the drawings.

[1-2] Opening tape:
The packaging body of the present invention includes an opening tape 30A joined to the packaging film 4A as in the packaging body 1A shown in FIGS. 1A to 1C.

  An opening tape is a tape-shaped member used in order to open a packaging film. By pulling the opening tape joined to the packaging film, the packaging film joined to the packaging tape is also pulled, so that the packaging film is torn and broken. With such a structure, the packaging film will not be broken unless a pulling force is applied to the opening tape, and it is possible to effectively prevent the packaging film from being unintentionally broken like a perforation. it can.

  The constituent material of the opening tape is not particularly limited. However, it is preferable that the material has a strength that is not easily broken when pulled. For example, a tape made of a resin material similar to the packaging film, more specifically, a tape made of a resin material such as low density polyethylene, unstretched polypropylene, high density polyethylene, or stretched polypropylene can be given. Among these, in terms of stretchability and strength, a tape made of high-density polyethylene or stretched polypropylene is preferable. In addition, the opening tape may be comprised from the same material as a packaging film, and may be comprised from a different material.

  The opening tape is joined to the packaging film. More specifically, it is joined to the inner surface (the surface that comes into contact with the disposable paper product) or the outer surface (the surface that faces away from the inner surface) of the packaging film. Especially, as shown to FIG. 1A-FIG. 1C, it is preferable that the opening tape 30A is joined to the outer surface of 4 A of packaging films. In such a form, like the form in which the opening tape is joined to the inner surface of the packaging film, the opening tape is penetrated from the inner surface side to the outer surface side of the packaging film, and the end of the opening tape is attached to the outer surface of the packaging film. No processing such as exposing to the side is required. Therefore, the structure of the package becomes simple and the manufacture of the package becomes easy.

  The opening tape is bonded to the packaging film so as not to be easily peeled off by means such as adhesion by an adhesive, fusion by heating (heat sealing), fusion by ultrasonic waves, or the like. At this time, it is preferable to join the opening tape to the packaging film so that the peel strength of the opening tape is higher than the breaking strength of the packaging film. By doing so, when the opening tape is pulled, only the opening tape is peeled off from the packaging film, and it is difficult to cause a problem that the packaging film cannot be broken. In addition to the type of adhesive and the strength of fusion, the bonding force can be adjusted by intermittently forming a bonding portion with the packaging film and increasing or decreasing the bonding area or bonding pitch.

  As shown in FIG. 1A, the opening tape is preferably disposed along the boundary of a plurality of disposable paper products 2A stacked in multiple stages or multiple rows in the packaging film 4A. In such a form, since the packaging film 4A is broken along the boundary of the disposable paper product 2A, it becomes easy to take out the disposable paper product 2A individually.

  For example, in the package 1A shown in FIG. 1A, the opening tape 30A is arranged along a boundary that divides a plurality of disposable paper products 2A (rolled toilet paper 12) into rows (that is, left and right). The disposable paper product 2A can be easily taken out from either the left or right column.

  In a package with roll-like sanitary paper as an article to be packaged, the opening tape can be easily pulled only by arranging the opening tape along the boundary that divides a plurality of disposable paper products into rows (ie, left and right). In some cases, the packaging film cannot be successfully broken. This is because 1) the packaging film is not in contact with the roll-like sanitary paper and floats in the vicinity of the boundary where the opening tape is arranged, and 2) the packaging film is made of a material that is flexible and easily stretched. This is because it is difficult to press down the area near the opening tape of the packaging film.

  However, the packaging body of the present invention is flexible and easily stretched because the pressing member 32A having a lower elongation rate than the packaging film 4A is disposed along the opening tape 30A as in the packaging body 1A shown in FIG. 1A. The opening tape 30A can be pulled while pressing the film 4A with the pressing member 32A. Accordingly, even when the opening tape 30A is arranged along a boundary that divides a plurality of roll-like sanitary sheets (rolled toilet paper 12 in the illustrated example) for each row (that is, left and right), the opening tape 30A is easily pulled. And the packaging film 4A can be successfully broken.

  The package 1A shown in FIG. 1A is an example in which the opening tape 30A is arranged along a boundary that divides a plurality of disposable paper products 2A into columns (that is, left and right). A form in which the opening tape is arranged along a boundary that is divided into two parts (that is, vertically) is also a preferable form. For example, in a package that wraps the same carton-containing tissue paper as in FIG. 2, an opening tape may be disposed along the boundary of each carton-containing tissue paper.

  In the packaging body of the present invention, as in the packaging body 1A shown in FIGS. 1A and 1B, the lowermost disposable paper product 2A is taken from the portion of the packaging film 4A that encloses the uppermost disposable paper product 2A. It is preferable that the opening tape 30 </ b> A is arranged up to the part to be encapsulated.

  For example, in the package 1A shown in FIG. 1A and FIG. 1B, from the portion of the packaging film 4A that encloses the disposable paper product 2A at the uppermost level (first level from the top), the lowermost level (third level from the top). The opening tape 30A is arranged up to the portion enclosing the disposable paper product 2A. On the other hand, in the package 1B shown in FIG. 2, from the portion of the packaging film 4B that encloses the uppermost (first from the top) disposable paper product 2B, the lowermost (fifth from the top) disposable paper. An opening tape 30B is arranged up to the part enclosing the product 2A. It is preferable that the opening of the opening tapes 30A, 30B, and 30C is on the upper side of the packaging bodies 1A and 1B as in the packaging body 1A and the packaging body 1B because the opening of the packaging films 4A and 4B is facilitated.

  The thickness and material of the opening tape may be appropriately set in consideration of the strength of the packaging film. For example, when a carton-containing tissue paper is to be packaged, a polyethylene or polypropylene film having a thickness of 10 to 35 μm is used as the packaging film. In this case, as the opening tape, for example, a polyethylene or polypropylene film made of the same material as the packaging film and having a thickness of 30 to 105 μm, which is three times the thickness of the packaging film, can be used. Similarly, when roll-like sanitary paper such as toilet paper is used as a package, a film made of polyethylene or polypropylene having a thickness of 50 to 110 μm is used as the packaging film. In this case, as the opening tape, for example, a film made of the same material as the packaging film and having a thickness of 150 to 330 μm, which is three times the thickness of the packaging film, can be used. The width of the opening tape is preferably 0.5 to 5 mm, more preferably 1 to 3 mm.

  It is also preferable that the opening tape is provided with a tab as a trigger for pulling the opening tape at the end of the joining start end. The shape of the tab is not particularly limited, and it may be formed in a size and shape that can be easily picked with a finger. In the package 1A shown in FIG. 1A and the package 1B shown in FIG. 2, pentagonal tabs 34A, 34B, and 34C are attached to the ends of the opening tapes 30A, 30B, and 30C on the joining start end E1 side. .

[2] Configuration of other parts of the present invention:
Hereinafter, the other part of the package of the present invention will be described. The package of the present invention includes a disposable paper product and a packaging film that encapsulates the disposable paper product.

[2-1] Disposable paper products:
The “disposable paper product” is to be packaged in the package of the present invention. There are no particular restrictions on the type of “disposable paper product”. For example, roll-like sanitary paper (roll-like toilet paper, roll-like kitchen paper, roll-like towel paper, roll-like cooking sheet, etc.), sanitary paper with cartons (such as tissue paper with cartons), sanitary napkins, disposable diapers, etc. be able to.

  The package of the present invention is packaged in a state where a plurality of articles to be packaged are laminated in multiple stages. As a form of lamination, disposable paper products 2A may be laminated in multiple rows and stages as in packaging body 1A shown in FIG. 1A, or disposable paper as in packaging body 1B shown in FIG. The products 2B may be stacked in one row and multiple stages. A package 1A shown in FIG. 1A is an example of a package in which rolled toilet paper 12 is packaged as a disposable paper product 2A. In this package 1A, twelve roll-shaped toilet papers 12 are packaged in a state of being stacked in four rows and three tiers. On the other hand, the package 1B shown in FIG. 2 is an example of a package in which the tissue paper 14 containing a carton is packaged as the disposable paper product 2A. In the package 1B, five cartons of tissue paper 14 are packaged in a state of being stacked in one row × 5 steps.

[2-2] Packaging film:
There is no restriction | limiting in particular also about the material of a packaging film, Usually, resin, such as the low density polyethylene used for a packaging bag, unstretched polypropylene, high density polyethylene, a stretched polypropylene, can be used. Among these, high-density polyethylene and stretched polypropylene are preferable in that they have stretchability, strength, and heat shrinkability. A packaging film made of these materials can be thermally shrunk by heating. Accordingly, there is an advantage that a tight packaging conforming to the shape of the package can be obtained by simply heating the disposable paper product to be packaged after roughly packaging (shrink packaging).

  Although the thickness of the film varies depending on the type and weight of the package, the thickness of the film is preferably 10 to 35 μm when the tissue paper containing cartons is used as the package. Further, gusset tubes are often used for packaging roll-like sanitary paper such as toilet paper. In this case, the thickness of the film is preferably 50 to 110 μm, and more preferably 65 to 90 μm.

  A handle for transportation may be attached to the package. Usually, a handle is arrange | positioned on the upper surface side of a package for the convenience at the time of carrying. For example, the package 1A shown in FIG. 1A includes a sheet-like handle 8A attached so as to protrude from the top of the package 1A. Two holes 10 for inserting fingers are formed in the handle 8A. On the other hand, in the package 1B shown in FIG. 2, a band-shaped handle 8B is attached so as to be laminated on the package 1B. The handle 8B has both longitudinal ends joined to the packaging film 4B, and a finger can be inserted between the longitudinal center of the handle 8B and the region located on the top surface of the packaging body 1B of the packaging film 4B. It is configured as follows. The handle may be formed integrally with the packaging film or may be provided with a member other than the packaging film.

[1] Example 1:
As a package of Example 1, a package 1A shown in FIGS. 1A to 1C was manufactured. Roll-like toilet paper 12 was used as the disposable paper product 2A. This roll-shaped toilet paper 12 had a paper width of 114 mm and a roll outer diameter of 110 mmφ. And 12 roll-shaped toilet paper 12 was packaged in the state laminated | stacked on 4 rows x 3 steps | paragraphs. As the packaging film 4A, a gusset tube made of high-density polyethylene and having a thickness of 80 μm was used.

  As the opening tape 30A, a tape made of low-density polyethylene and having a width of 2 mm, a length of 370 mm, and a thickness of 240 μm was used. And the opening tape 30A was joined to the surface of the packaging film 4A along the boundary which divides 12 roll-shaped toilet paper 12 laminated | stacked on 4 rows x 3 steps | paragraphs among packaging films 4A for every row (namely, right and left). . The opening tape 30A was preliminarily coated with an adhesive, joined to the surface of the packaging film 4A with the adhesive, and the package was configured such that this surface was the outer surface of the packaging film.

  Further, the opening tape 30A encloses the disposable paper product 2A at the bottom (third from the top) from the portion of the packaging film 4A that encloses the disposable paper product 2A at the top (first from the top). Arranged up to the part to be.

A tab 34A is attached to the end of the opening tape 30A on the joining start end E1 side. The tab 34A was constituted by a polyethylene sheet having a thickness of 0.5 mm. The shape of the tab 34A was a pentagonal shape, and the area was 75 mm ² .

  As the pressing member 32A, a film made of high-density polyethylene made of the same material as the packaging film 4A and having a thickness of 240 μm was used. That is, a film having a lower elongation rate than the packaging film 4A was used as the pressing member 32A.

  The pressing member 32A was formed in a frame shape. The outer shape is a substantially rectangular shape having a size of 10 mm × 360 mm, and a substantially rectangular through portion having a size of 5 mm × 350 is formed at the center thereof. The pressing member 32A was bonded to the surface of the packaging film 4A using an adhesive.

  And as a result of pulling the opening tape 30A while holding the tab 34A and holding the pressing member 32A, the packaging film 4A could be easily and surely broken along the arrangement position of the opening tape 30A to open the package. .

  The package of the present invention is, for example, a disposable paper product such as a roll-like sanitary paper (toilet paper, kitchen paper, towel paper, cooking sheet, etc.), a sanitary paper with cartons (tissue paper, etc.), a sanitary napkin, or a disposable diaper. It can be suitably used as a package to be packaged.

1A, 1B: Packaging, 2A, 2B: Disposable paper products, 4, 4A, 4B: Packaging film, 8A, 8B: Handle, 10: Hole, 12: Rolled toilet paper, 14: Tissue paper, 30, 30A, 30B, 30C: opening tape, 32A, 32B, 32C, 32D, 32E, 32F, 32G, 32H: pressing member, 34, 34A, 34B, 34C: tab, E1: joining start end, E2: joining end.

Claims (3)

A disposable paper product, a packaging film enclosing the disposable paper product, an opening tape joined to the packaging film, and a pressing member fixed to the packaging film and having a lower elongation than the packaging film. Prepared,
The package body in which the pressing member is disposed along at least one side edge of the opening tape.   The package according to claim 1, wherein the pressing member is disposed along both side edges of the opening tape.   The package according to claim 2, wherein the pressing member is formed in a frame shape.

Images