JP5198090B2 - Sanitary sheet roll packaging - Google Patents

Description

  The present invention relates to a sanitary sheet roll package in which a plurality of sanitary sheet rolls are packaged.

Hygienic sheet rolls made from rolls of sanitary thin paper and non-woven fabric sheets, such as toilet rolls and kitchen rolls, are usually packed together in a film to ensure handling, hygiene, and mass sales. Commercially available.
In such a sanitary sheet roll package, a perforation line for tearing is formed on the film to facilitate the opening operation.
JP 2003-104449 A

However, when a perforation line is formed, so-called cut portions (cut portions) communicate with the inside and outside of the film, so that bacteria, outside air, dust, and the like may be mixed inside the package.
In particular, hygiene and cleanliness are important because sanitary sheet rolls are often used for applications that come into contact with the human body or food.
Therefore, it is not preferable that there is a cut portion that communicates with the inside and outside of the package, such as a perforation line.

Furthermore, the opening part formed by the tearing of the perforation line cannot be sealed again once it is opened.
As described above, since a plurality of sanitary sheet rolls are packaged together and supplied to the market, some rolls take time until they are actually used after being opened. Therefore, if it cannot be resealed, there is a risk that the roll remaining in the dust or the like during this time will be exposed.
Furthermore, since the perforation line cannot be picked up only by forming the perforation line, it may take time for the opening operation.

  Therefore, the main problem of the present invention is to improve the ease of opening, and there is no risk of dust or the like entering the package body before opening, and the sanitary sheet roll that can be sealed again even after opening the seal It is to provide a package.

The present invention that has solved the above problems and the effects thereof are as follows.
<Invention of Claim 1>
A sanitary sheet roll package in which a plurality of sanitary sheet rolls are packaged with a film,
A plurality of sanitary sheet rolls are juxtaposed with the circumferential surfaces adjacent to each other,
The film covers the sanitary sheet roll so that the MD direction is a direction along the axial direction of the sanitary sheet roll,
An adhesive surface on which a tearing hole for opening having a slit-like portion extending along the MD direction is formed in the film, and the tape material can be reattached so as to seal the tearing hole. And a hard protrusion that communicates with the inside and outside of the cleft hole is disposed on the film application surface of the tape material,
A sanitary sheet roll package.

(Function and effect)
In the present invention, a tearing hole for opening is formed in the film, and a tape material is attached so as to seal the tearing hole. Therefore, when this tape material is peeled from the film, the vicinity of the fragile tear hole is taken by the tape material and the tear hole is widened, so that the opening operation can be easily performed. Moreover, since the cleaving hole is sealed, dust and the like are not mixed.

  Furthermore, since the slit-shaped part is along the MD direction of the film, the tearing hole is easy to tear linearly along the MD direction at the time of the tearing work, and the opening work becomes very easy, and the straight beautiful opening Can be obtained.

  And since the tearing hole is along the axial direction of the sanitary sheet roll, the tearing direction of the tearing hole becomes a direction perpendicular to the winding direction of the sanitary sheet roll, and the winding of the sheet roll is peeled off at the time of tearing. No fear.

  In addition, MD direction is a direction along the flow direction at the time of film manufacture. For example, it is a flow direction at the time of manufacturing by extruding a film material from a die or a lip. Usually, a film has the property of being easily torn in the MD direction.

  In addition, since the tape material can be re-adhered, the tape material is pulled to open the tear holes and opened, and the space formed after the sanitary sheet roll contained therein is taken out, that is, the margin of the film is torn. Folding is performed so that the open portion is on the inside, and finally the tape material is reapplied to any portion of the film, thereby sealing the dehiscence portion. Thus, it is possible to prevent dust and the like from entering the package after opening.

In particular, in the present invention, since the tearing hole is easily torn in a straight line, the re-sealing can be performed reliably and without waste by overlapping the edges that have been straightly broken and reapplying the tape material. Can do.
Further, in the present invention, when the tear hole is torn by the hard projection, not only the natural tear of the film caused by pulling the tape, but also the projecting member is moved in the MD direction of the film. The tearing of the tearing hole is assisted and the opening operation is facilitated. In addition, since the protruding portion communicates with the inside and outside of the cleavage hole, an effect of improving the sealing property of the cleavage hole can be obtained.

<Invention of Claim 2>
A plurality of sanitary sheet rolls are juxtaposed with the circumferential surfaces adjacent to each other,
The film has a portion that is cross-linked between the peripheral surfaces of adjacent sanitary sheet rolls and covers the sanitary sheet rolls,
The sanitary sheet roll package according to claim 1, wherein the cleaving hole is formed in a portion to be crosslinked.

(Function and effect)
If the cleaving hole is formed in a portion that is cross-linked between the peripheral surfaces of adjacent sanitary sheet rolls of the film, the cleaving hole does not contact the sheet roll, so that there is no possibility of breaking the sheet roll at the time of opening. Further, since the film is not in contact with the sheet roll at this position, the extension of the film is not easily restrained by the sheet roll. Therefore, when the tape material is pulled, the tearing hole is easily torn and the opening operation is facilitated.

  In addition, if a tear hole is formed at this position, the tearing direction of the tear hole will always be easy to tear through the part without the roll, and an extremely beautiful straight opening that also has the effect of facilitating the opening work is obtained. be able to.

<Invention of Claim 3>
The sanitary sheet roll package according to claim 1 or 2, wherein the tape material has a knob end portion that is non-adhered to the film.

(Function and effect)
Since the knob end is formed on the tape material, it is easy to pick and the opening operation is facilitated.

  According to the present invention described above, the ease of opening is improved, there is no risk of dust and the like entering the package before opening, and the sanitary sheet roll packaging can be sealed again even after opening once The body is provided.

Next, an embodiment of the present invention will be described in detail below with reference to FIGS.
< Basic Structure of Embodiment of the Present Invention >
First, the basic structure of a sanitary sheet roll packaging body according to an embodiment of the present invention will be described with reference to FIGS. The packaging body 10 includes a plurality of sanitary sheet rolls 11, 11.

The sanitary sheet rolls 11, 11... Of the present invention are rolls of strip-like thin paper or nonwoven fabric sheets. To illustrate, they are toilet rolls, kitchen rolls, wipe rolls, and the like. The sanitary sheet roll in the illustrated example is a toilet roll.
The specific physical properties such as the material of the sanitary sheet rolls 11, 11,... And their raw materials, basis weight, density, size, and number of plies are not particularly limited. The manufacturing method and the like are also based on known techniques.

For example, if the toilet roll is a two-ply sheet, a toilet roll having a core diameter of 35 to 48 mm, a winding diameter of 100 to 120 mm, and a winding length of 20 to 50 m is generally used. A roll can be adopted.
In the case of a kitchen roll, in addition to thin paper, a laminate of a nonwoven sheet containing fibers such as rayon, polyethylene terephthalate, polyacryl, polyester, polyethylene, etc., or a laminate obtained by laminating a cotton sheet and a pulp sheet, etc. The thing wound up in the shape can also be illustrated.

  On the other hand, the package body 10 includes a plurality of sanitary sheet rolls 11 included in parallel, with the peripheral surfaces 11C adjacent to each other (the adjacent portion is indicated by 11n in the figure). Since the packaging becomes compact, it is more preferable that the end faces 10S are arranged in a line substantially in a straight line as in the illustrated example.

  For example, as shown in FIG. 1, the package 10 has a total of four sanitary sheet rolls 11 arranged in such a manner that two sanitary sheet rolls 11 are arranged in a direction in contact with the peripheral surface and two in a direction in contact with the end surface. However, as shown in FIG. 2, a total of 12 sanitary sheet rolls may be employed so that four are arranged in the direction contacting the peripheral surface 11C and three are arranged in the direction contacting the end surface 11S. it can.

  In the present packaging body 10, the number of sanitary sheet rolls 11, 11,... Included is not limited, and may be an appropriate number within the range of the present invention.

  On the other hand, in the present package 10, the sanitary sheet rolls 11, 11,... Arranged in this way are covered with the film 12 with an appropriate tensile force and packaged. Therefore, as shown in FIG. 3, the film 12 has a portion 12 x that is bridged between the peripheral surfaces 11 </ b> C and 11 </ b> C of the adjacent sanitary sheet rolls 11, 11, and the peripheral surface 11 </ b> C of the sanitary sheet roll 11 and A space S is formed between the adjacent portion 11n and the film 12x.

  Such a packaging aspect can be achieved by, for example, the caramel packaging shown in FIG. 1 or the gusset packaging shown in FIG. In view of cost and the like, these packaging modes are also suitable in the present invention. These wrapping methods are well-known techniques. To explain, caramel wrapping involves wrapping an object to be wrapped with a film, adhering overlapping edges in the winding direction, and further exceeding the object to be wrapped. In this case, the extending portion is folded from the two opposing edges toward the article to be packaged, and at least the tip edges of the triangular piece or trapezoidal piece formed at that time are bonded to each other. A known apparatus is used as the apparatus for performing the caramel wrapping.

  In the gusset packaging, the articles to be packaged 11, 11... Are inserted into a cylindrical body having openings at both ends, both ends projecting beyond the articles to be packaged are set as surplus allowances 20, and the surplus allowance 20 is bonded to the opening sealed. It is an aspect. In the example shown in FIG. 2, a handle portion 40 is provided on the bonding portion 30 to which the surplus allowance 20 is bonded. A known device is also used as the device for performing such gusset packaging.

As the film 12 for packaging the sanitary sheet rolls 11, 11..., A known film used as a packaging material for this type of sanitary sheet roll 11, 11 can be used.
The film 12 should be transparent so that the sanitary sheet rolls 11 and 11 contained therein can be visually recognized from the outside. Appropriate printing of product names and the like may be provided for commercial use.

  Specific examples of the film 12 include polyethylene films such as HDPE (high density polyethylene) films, LDPE (low density polyethylene) films, LLDPE (linear low density polyethylene) films, polystyrene films, polypropylene films, and the like, or laminated films thereof. It is done. HDPE films, LDPE films, HDPE and LDPE blended films are preferred because they are inexpensive, have appropriate tearability, and can ensure adequate strength.

  The manufacturing method of the film 12 to be used is not limited. What is necessary is just to manufacture with an appropriate film formation method according to the kind of resin used as the raw material of the film 12. FIG. For example, an extrusion method such as a T-die method may be mentioned. In the case of a laminated structure, an extrusion laminating method or the like can be given. Moreover, you may perform the extending | stretching process for making it easy to tear to a predetermined direction.

  The thickness of the film 12 is desirably 10 to 80 μm. If it exceeds 80 μm, the tearability may be insufficient and the opening operation may be difficult. If it is less than 10 μm, the strength is insufficient and the possibility of unintentional tearing increases.

  The tear strength of the film 12 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 unintentional tearing, and if it exceeds 800 cN, the opening operation that is the effect of the present invention becomes difficult.

Furthermore, the elongation of the film 12 is desirably 100 to 700%. The elongation of the film here is the elongation in the MD direction of the film 12 measured at a test piece width of 15 mm, a distance between chucks of 50 mm, and a speed of 300 mm / min in accordance with JIS K7127. When the elongation of the film is less than 100%, it is difficult to obtain sufficient strength, and the handleability is inferior. If the elongation of the film 12 exceeds 700%, the film 12 is stretched at the time of opening, making it difficult to open, or the shape of the package is liable to collapse, and the transportability and handling properties deteriorate.
Here, the MD direction of the film 12 is an extrusion direction at the time of film production, and the film 12 generally has a property of being easily torn in the direction.

  On the other hand, as shown in FIGS. 1 to 3, the package 10 has a tear hole 15 in a portion where the film 12 is bridged between the peripheral surfaces 11 </ b> C and 11 </ b> C of adjacent sanitary sheet rolls 11 and 11. An adhesive tape material 16 is attached so as to seal the cleaved hole 15 formed. The presence of the tape material 16 prevents dust and the like from being mixed into the package from the tear hole 15, and when the tape material 16 is peeled off from the film 12, the film 12 around the tear hole 15 becomes the tape material. 16, the cleaving hole 15 spreads and the package is easily opened.

  As shown in FIGS. 4A to 4D, the cleavage hole 15 is a linear or elongated line-like slit-like portion such as a straight line shape, a cross shape, an elongated triangle shape, a rhombus shape, or the like. It is preferable that the shape has. When there is a slit-like part, when the tape material is peeled off, it can be split so that both ends of the slit-like part spread, and the opening can be performed smoothly.

  In the illustrated packaging body 10 in the illustrated example, the slit-shaped portion is in a direction along the axial direction of the sanitary sheet roll. Therefore, when the slit-shaped portion is split so as to extend, tearing always proceeds through the space portion avoiding the contact portion of the film with the sanitary sheet roll, so that smoother tearing is performed. Further, a linear tearing edge is formed, and the design of the opening is improved.

  Here, the length of the slit-like portion of the cleavage hole is preferably 3 mm to 15 mm, and if it is less than 3 mm, the ease of opening does not improve, and if it exceeds 15 mm, there is a risk of unintentional cleavage. Rise.

  On the other hand, the slit-shaped portion 15 </ b> A of the cleavage hole 15 is formed along the MD direction of the film 12. In addition, MD direction is an extrusion direction at the time of film manufacture as above-mentioned, and generally a film has a property which is easy to tear to the said direction. In particular, polyethylene films such as LDPE film and HDPE film have this property. Therefore, when making a slit-shaped part to follow the axial center direction of a sanitary sheet roll as mentioned above, it is good to package so that MD direction of a film may turn into the direction along the said axial direction. Further, an LDPE film, an HDPE film, or a combination film of LDPE and HDPE is preferably used. If it does in this way, the tearing operation | work will be very easy and the opening opening which is excellent in the linear design property and resealability comes to be formed.

On the other hand, the tape material 16 can be formed of a known adhesive tape in which an adhesive 16c is applied to one surface of a resin tape base 16b.
The peel strength between the tape material 16 and the film 12 is preferably 50 to 500 cN. If it is less than 50 cN, it becomes difficult to cleave the cleft, and if it exceeds 500 cN, the film will be stretched or torn and difficult to open. The peel strength was measured by a test piece width of 15 mm, a peel speed of 200 mm / min, and a T-type peel method.

  On the other hand, it is desirable that the tape material 16 is formed with a non-adhesive double-sided gripping end portion 16A at the end portion as shown in the illustrated example so as to facilitate the peeling operation. The knob end portion 16A can be formed by sticking another sheet material 16a to the end portion of the adhesive surface of the tape material as shown in the illustrated example. Alternatively, the end of the tape material may be folded back with the adhesive surface inside, or the adhesive surface of the end of the tape material may be paste-killed.

Further, the position of the knob end portion 16A is, for example, a position where the knob end portion does not overlap with the both ends extending position of the slit-shaped portion, and when the operation is performed to peel the tape material 16 from the film 12, It is preferable that the peeling direction is a direction orthogonal to the extending direction of the slit-like portion 15A. In this way, when the knob end portion 16A is pulled, the slit-shaped portion 15A breaks the cleavage hole 15 so that the tearing is easily started and the opening is smoothly performed.
Further, the tape material is preferably configured to be re-adherable to the film. This can be achieved by adjusting peel strength and adhesive strength.

If re-adhesion is possible in this way, once the tear holes are opened and opened, some of the hygienic sheet rolls inside are taken out, and then the free surplus portion of the film formed by the removal is opened. It is resealed by folding it so that the mouth is closed and re-adhering the tape material.
Thereby, after opening one end, dust etc. do not enter the inside of the package.

  In particular, as described above, the slit 15 having the slit-shaped portion 15A is formed so that the slit-shaped portion 15A is along the MD direction of the film 12 and the axial direction of the sanitary sheet roll 11, and further HDPE film and LDPE film. In a package in which a linear opening edge is easily formed by using a blended film of LDPE and HDPE, the opening edge is linear and the opening is not unnecessarily large. The opening is easy to re-seal, making it extremely hygienic and convenient.

On the other hand, in the package of the present invention, in particular as in the form shown in FIG. 6, the film sticking face of the tape 16, the rigid protrusion 17 which communicates with the inside and outside of the tearing holes 15 Kubare. By distributing this way the projections 17, the projections 17 when it is peeled to tear holes 15 upon peeling of the tape 16 becomes freely movable, tearing holes 15 the protrusion 17 By pressing against the edge of the, the cleavage of the cleavage hole 15 is assisted. In particular, if the shape is such that a thin piece-like projection having a wedge-shaped cross section protrudes into a cleaving hole having a slit-like portion, the cleaving property is extremely excellent.

  Even if the protrusions 17 are arranged in this way, if the cleavage holes 15 are formed in the bridged portions between the peripheral surfaces 11C and 11C of the adjacent sanitary sheet rolls 11 and 11 as described above, the protrusions 17 does not contact the internal sanitary sheet roll 11, and the sanitary sheet toll 11 can be prevented from being damaged.

Furthermore, in the present invention , as shown in FIG. 7, a cleaving hole 15 is formed in a U shape as a cleaving hole having a slit-like portion, and a knob end portion 16A is positioned on the curved distal end side of the U shape. Thus, the tape material 16 can be attached to the film . In this example, when the tape material 16 is pulled, it is torn and opened so that both ends extend from the U-shaped curved tip.

  As described above, the packaging body 10 of the present invention is extremely easy to open. And there is no possibility that dust etc. will enter the package before opening, and it can be sealed again even if it is opened once.

  The present invention can be used for a package in which tubular products such as toilet rolls and kitchen rolls are packaged.

It is a perspective view of the sanitary sheet roll packaging body of the 1st Embodiment of this invention. It is a perspective view of the sheet roll package for hygiene of another form of the 1st implementation of the present invention. FIG. 3 is a sectional view taken along the line III-III in FIG. 1. FIG. 4 is an enlarged perspective view of a portion IV in FIG. 3. It is a figure which shows the example of a tearing hole. It is a perspective view which shows the tearing hole vicinity of the sanitary sheet roll packaging body of other embodiment of this invention. It is a figure which shows the crevice hole vicinity of the sanitary sheet roll packaging body of another embodiment of this invention.

  DESCRIPTION OF SYMBOLS 10 ... Sanitary sheet roll package, 10S ... End face row, 11 ... Sanitary sheet roll, 11S ... End face, 11C ... Peripheral surface, 11n ... Adjacent part of sanitary sheet roll peripheral surface, 12 ... Film sheet, S ... Space 15 ... tearing hole, 15A ... slit-like part, 16 ... tape material, 16A ... picking end, 16a ... sheet material, 16b ... tape base, 16c ... adhesive, 20 ... surplus, 30 ... adhesion part, 40 ... Toride part.

Claims (3)

A sanitary sheet roll package in which a plurality of sanitary sheet rolls are packaged with a film,
A plurality of sanitary sheet rolls are juxtaposed with the circumferential surfaces adjacent to each other,
The film covers the sanitary sheet roll so that the MD direction is a direction along the axial direction of the sanitary sheet roll,
An adhesive surface on which a tearing hole for opening having a slit-like portion extending along the MD direction is formed in the film, and the tape material can be reattached so as to seal the tearing hole. And a hard protrusion that communicates with the inside and outside of the cleft hole is disposed on the film application surface of the tape material,
A sanitary sheet roll package. A plurality of sanitary sheet rolls are juxtaposed with the circumferential surfaces adjacent to each other,
The film has a portion that is cross-linked between the peripheral surfaces of adjacent sanitary sheet rolls and covers the sanitary sheet rolls,
The sanitary sheet roll package according to claim 1, wherein the cleaving hole is formed in a portion to be crosslinked.   The sanitary sheet roll package according to claim 1 or 2, wherein the tape material has a knob end portion that is non-adhered to the film.

Images