JP4160872B2 - Disposable diaper packaging - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a package for disposable diapers.
[0002]
[Prior art]
Japanese Patent Publication No. 11-501275 (Patent Document 1) describes an invention whose name is a bag for disposable diapers. According to this invention, the disposable diaper is packaged in a rectangular parallelepiped bag in two upper and lower stages. Each diaper is folded in two at the crotch area so that the edge edges of the front and back waist area overlap, the lower diapers are lined up with their edge edges upward, the upper diaper is These edge portions are lined up downward. In the lower diaper and the upper diaper, end edges are in close contact with each other in the vertical direction. In this bag, a large opening for taking out the diaper can be formed by breaking the bag along a row of pores formed almost entirely on one side surface. An example of the opening is described in EP A 406928.
[0003]
Japanese Utility Model Registration No. 2591646 (Patent Document 2) describes a device (invention) relating to a package such as a disposable diaper. This package is a rectangular parallelepiped, and the side surface and the side surface adjacent to each other form a corner. An opening perforation is formed on each of the adjacent side surfaces so as to sandwich this corner. The package can be removed from the corner of the package by opening it along its perforation.
[0004]
Japanese Patent Laying-Open No. 2001-261062 (Patent Document 3) also describes an invention relating to a package such as a disposable diaper. In this package, slits are intermittently formed along each of two virtual lines extending in the vertical direction in parallel with each other, and the two virtual lines are separated from each other at the upper and lower ends of the virtual line. Slits are intermittently formed along arcuate imaginary lines that extend larger than the dimensions. The package is unsealed by the sheet material forming it being cut along these slits. The slit extending intermittently along the arcuate imaginary line is used as a part for starting the opening of the package.
[0005]
[Patent Document 1]
Japanese National Patent Publication No. 11-501275 [Patent Document 2]
Utility Model Registration No. 2591646 [Patent Document 3]
Japanese Patent Laid-Open No. 2001-261062
[Problems to be solved by the invention]
In an example of the bag described in Patent Document 1, the edge portions of disposable diapers that are stacked in two stages and are positioned above and below are in contact with each other. Generally, the edge part of a disposable diaper is a part with low rigidity, and many gathers have arisen with shrinkage | contraction of a waist circumference elastic member. In the bag, the disposable diaper is in a compressed state. Therefore, in the diaper stacked up and down in the bag, the edge portions are intertwined. Patent Document 1 describes that a large opening is formed on one of the side surfaces as a means for taking out the diaper from the bag. However, the large opening formed on almost the entire side surface allows the diaper to be removed. Even if it is easy to do, after removing the diaper, many diapers arranged in order before the opening is formed are disturbed, and after that it becomes difficult to remove the diaper, or there is garbage from the large opening. There are times when it is easy to enter and it is difficult to keep the bag in good shape.
[0007]
Therefore, when the perforation implemented in Patent Document 2 is adopted in this bag, an opening having a narrow width for extraction is formed. However, since this opening cannot be closed, it is not sufficient to prevent the entry of garbage that causes the disposable diaper to become dirty.
[0008]
Moreover, when the perforation implemented by patent document 3 is employ | adopted for the bag of patent document 1, a bag will be torn upwards from a bottom part, and the opening for extraction will be formed under the bag. In such a bag, even if it is torn, the broken portion hangs down and closes the opening, so that it is possible to prevent the entry of garbage from the opening. However, since this bag begins to be taken out from the lower disposable diaper, the rows of disposable diapers that are stacked in two rows and are arranged in an orderly manner tend to collapse, and once the row collapses, it takes time to take out the diapers. However, the perforation of Patent Document 3 can be applied to the bag of Patent Document 1 upward from the intermediate portion in the height direction. However, in such a bag, even if an opening for taking out the diaper is formed at the intermediate portion, the edge portions of the upper and lower disposable diapers are intertwined inside the opening so that each diaper is accurately identified. Since it is difficult, when trying to take out one disposable diaper, two disposable diapers may be taken out by mistake.
[0009]
An object of the present invention is to provide a disposable diaper package that can be easily taken out from an individual disposable diaper from an opening formed in the package and that can prevent entry of garbage from the opening. Yes.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is directed to a crotch region having a front-rear direction including a liquid-permeable surface sheet, a liquid-impermeable back sheet, and a liquid-absorbent core interposed between the two sheets. A front waistline area is formed in the front, a rear waistline area is formed in the rear of the crotch area, and a front edge that extends in the width direction of the front waistline area and the back waistline area. A disposable diaper having a rear edge portion is folded in two in the front-rear direction in the crotch region with the back sheet facing outside to form a diaper folded body, and a plurality of the diaper folded bodies are It is a disposable diaper packaging body in which a hexahedron is formed by folding these diapers and the sheet material by being packaged by the sheet material in a state of being stacked in two upper and lower stages.
[0011]
In such a disposable diaper package , the present invention is characterized as follows. The plurality of diaper folding bodies located in each of the two upper and lower tiers are folded so that each height and width are the same, with the crotch region facing downward, and the front and rear end edges being The upper and lower waist regions are arranged in contact with each other toward the top. The crotch region of the folded body located in the upper stage is placed on the front and rear end edges of the folded diaper body located in the lower stage. The hexahedron is parallel to each other and spreads in the horizontal direction, the top surface and the bottom surface, the first and second side surfaces extending in parallel to each other in the vertical direction, and the first and second side surfaces extending in parallel to each other in the vertical direction. Each of the first and second side surfaces and each of the third and fourth side surfaces are orthogonal to each other to form four ridge lines. And the sheet material can be easily broken along the ridgeline formed by the both side surface portions on both side surface portions forming any one of the four ridgelines. A row of slits extending in the vertical direction is formed, and the folding body positioned in the upper stage is formed between the rows of slits formed on the side surface portions and the rows of slits. The slit below the crotch region Rows of slits extending in a direction intersecting with each column is interposed.
[0012]
The present invention has the following preferred embodiments.
(1) The interval between the rows of slits formed on the both side surfaces and extending in the vertical direction is uniform in the vertical direction.
(2) The interval between the rows of slits formed on the both side surfaces and extending in the vertical direction is wider above the row of slits extending in the intersecting direction and narrower below.
(3) Either of the rows of slits extending in the intersecting direction is curved so as to be convex downward in the vertical direction, or is inclined downward so as to draw a V-shape. It is in.
(4) At least one of the upper and lower extension lines of the slit rows formed in the both side surfaces and extending in the vertical direction has a length longer than the interval between the slit rows. A row of slits is formed which is long and extends in the horizontal direction across the extension lines.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The details of the disposable diaper package according to the present invention will be described below with reference to the accompanying drawings.
[0014]
FIG. 1 is a diagram illustrating a procedure when disposable diapers 1 are folded and stacked in two upper and lower stages. FIG. 1A is a partially broken plan view of the diaper 1 before being folded. The diaper 1 includes a liquid-permeable top sheet 2, a liquid-impervious back sheet 3, and a liquid-absorbent core 4 interposed between the two sheets 2 and 3. The two sheets 2 and 3 are overlapped at a portion extending from the peripheral edge of the core 4 and joined to each other by adhesion or welding to form a rectangular diaper body 5 which is long in the front-rear direction which is the vertical direction in the figure. The main body 5 includes a crotch region 8, a front waist region 6 located in front of the crotch region 8, and a rear waist region 7 located behind the crotch region 8. A pair of front wing portions 11a and 11b and a pair of rear wing portions 12a and 12b extend laterally from the side edge portions 5a and 5b. Hook members 13a and 13b of mechanical fasteners are attached to the inner surfaces of the rear wing portions 12a and 12b. The main body 5 is formed by overlapping the front sheet 2 and the back sheet 3 in the front and rear waist areas 6 and 7, and includes a front edge 16 and a rear edge 17 that do not include the core 4. The front and rear end edges 16 and 17 have hot melt adhesives on the inner surfaces of the top sheet 2 and / or the back sheet 3 in a state where the belt-like waist elastic members 18 and 19 are extended in the width direction of the main body 5. (Not shown). The main body 5 also has leg-around elastic members 21 and 22 at both side edges 5a and 5b, and the elastic members 21 and 22 are extended in the front-rear direction on the inner surface of the top sheet 2 and / or the back sheet 3. It joins via a hot-melt-adhesive (not shown). Leak-proof cuffs 23 and 24 are formed on the inner surfaces of the side edges 5a and 5b. These leak-proof cuffs 23, 24 are formed of rectangular sheet pieces that are long in the front-rear direction, and include outer edge portions 26, 27, front end edge portions 28 and 29 (see FIG. 1B), rear end edge portion 31, 32 (see FIG. 1B) is bonded to the surface sheet 2 by adhesion or welding, but the inner edge portions 33 and 34 are not bonded to the surface sheet 2, and cooperate with the surface sheet 2. The pockets 36 and 37 that can be opened toward the inside of the diaper 1 are formed.
[0015]
In FIG. 1 (b), a part of the side edges 5a, 5b of the diaper 1, the front wing parts 11a, 11b, and the rear wing parts 12a, 12b are folded into the top sheet 2 toward the inside of the diaper 1. It is piled up.
[0016]
In FIG. 1 (c), the diaper 1 of (b) divides the front-rear direction dimension of the diaper 1 into two and divides the topsheet 2 along the center line DD crossing the crotch region 8. Thus, the folded body 41 of the diaper 1 is formed. The folding body 41 has a top portion 43 and a bottom portion 44, and the top portion 43 is formed by the front and rear end edges 16 and 17 that do not include the core 4, and is a flexible portion with low rigidity. A target tape 42 is attached to the back surface sheet 3 by adhesion or welding on the outer surface of the portion below the top 43 where the core 4 is interposed between the top sheet 2 and the back sheet 3. The target tape 42 is a loop member of a mechanical fastener to which the hook members 13a and 13b are detachably fixed. The bottom 44 of the folded body 41 is formed by the crotch region 8 of the diaper 1 and is a highly rigid part including the core 4.
[0017]
FIG. 1 (d) shows a packaging sheet material in which a plurality of folded bodies 41 formed by folding each diaper 1 in FIG. 1 (c) so as to have the same height and width are indicated by phantom lines. It is a figure which shows a state when it is wrapped by 46 and becomes the package 51 (refer FIG. 2). The plurality of folding bodies 41 are stacked in two upper and lower stages, and in each of the upper stage 52 and the lower stage 53, the front waist area 6 of the folding body 41 is in contact with the rear waist area 7 of the folding body 41 adjacent thereto. Are arranged in the double-headed arrow A direction. The folded bodies 41 arranged so as to form the lower stage 53 are the bottoms of the folded bodies 41 arranged so as to form the upper stage 52 on the front and rear end edges 16, 17 of the diaper 1 forming the top part 43. 44 is placed.
[0018]
FIG. 2 is a partially broken perspective view of a disposable diaper package 51 according to the present invention. As shown in FIG. 1D, the package 51 includes a plurality of folded bodies 41 that are stacked in two upper and lower stages, and a sheet material 46 that packages these folded bodies 41. . The packaging body 51 forms a hexahedron with the folded body 41 and the sheet material 46 in a substantial sense. The top surface portion 58 and the bottom surface portion 59 spread in parallel to each other in the horizontal direction, and are parallel to each other in the vertical direction. A first side surface portion 61 and a second side surface portion 62 extending in parallel to each other, and a third side surface portion 63 and a fourth side surface portion 64 extending in parallel and perpendicular to each other and perpendicular to the first side surface portion 61 and the second side surface portion 62. Have The first to fourth side portions 61 to 64 are perpendicular to the first ridgeline 71 extending in the vertical direction between the first side surface portion 61 and the third side surface portion 63 and between the third side surface portion 63 and the second side surface portion 62. A second ridgeline 72 extending in the vertical direction, a third ridgeline 73 extending in the vertical direction between the second side surface portion 62 and the fourth side surface portion 64, and a fourth ridgeline 74 extending in the vertical direction between the fourth side surface portion 64 and the first side surface portion 61. Is forming. The top surface portion 58 has a handle portion 76, and the portions 76a and 76b connected to the handle portion 76 form a gentle slope, but can be regarded as a substantially horizontal surface.
[0019]
A first slit extending in the vertical direction along the fourth ridge line 74 is formed in the first side surface portion 61 and the fourth side surface portion 64 forming the fourth ridge line 74 of the first to fourth ridge lines 71 to 74. A row 81 and a second slit row 82 are formed. The first slit row 81 and the second slit row 82 pass through a portion where the folded body 41 of the upper stage 52 and the folded body 41 of the lower stage 53 overlap, and extend in the horizontal direction by dividing the height of the packaging body 51 into approximately two equal parts. A predetermined length extends above the center line M and below the center line M. The interval W between the first slit row 81 and the second slit row 82 is a value obtained as the sum of the horizontal distances from the respective slit rows 81, 82 to the fourth ridge line 74, and in the package 51 of the illustrated example, This interval W is uniform in the vertical direction. A preferable interval W is in a range of 10 to 100 mm. Below the center line M, a third slit row 83 is formed which extends substantially horizontally across the fourth ridge line 74 and extends so as to also intersect the first slit row 81 and the second slit row 82. ing. Stopper slits 86, 87, 88, 89 extending in the horizontal direction are formed at the upper and lower ends of each of the first slit row 81 and the second slit row 82. A fourth slit row 91 and a fifth slit row 92 extending in the horizontal direction are formed above the stopper slits 86 and 88 and below the stopper slits 87 and 89. The fourth slit row 91 and the fifth slit row 92 intersect the extension line of the first slit row 81 and the second slit row 82, and are larger than the interval W between the first slit row 81 and the second slit row 82. It extends to be longer.
[0020]
FIG. 3 is a view similar to FIG. 2, but an opening 101 for taking out the folding bodies 41 one by one is formed in the packaging body 51 of FIG. 3. In the packaging body 51 of FIG. 2, a part 93 located between the first slit row 81 and the second slit row 82 and positioned immediately above the third slit row 83 is to be extracted to the outside of the packaging body 51. Alternatively, when the fingertip is pushed inward of the package 51, the sheet material 46 is broken at the first, second, and third slit rows 81, 82, 83 located in the vicinity of the portion 93. When the torn sheet material 46 is pulled up toward the upper side of the package 51, the sheet material 46 is further broken along the first and second slit rows 81 and 82 to form a band-like portion 98 and the opening 101 is formed. Is done. In the opening 101, the bottom portion 44 of the folding body 41 located inside the fourth ridge line 74 in the upper stage 52 is exposed. If the bottom portion 44 is picked, only one folding body 41 is reliably and quickly removed. be able to. In the opening 101, in addition to the bottom 44 of the folding body 41, the top 43 of the folding body 41 located in the lower stage 53 is also exposed, and gathers are generated in the top 43 due to contraction of the waist elastic members 18 and 19. However, since the highly rigid bottom portion 44 can be easily distinguished from such a top portion 43, there is no fear that the folding body 41 of the lower stage 53 is taken out by mistake in the packaging body 51.
[0021]
The sheet material 46 that tears upward along the first and second slits 81 and 82 reaches the stopper slits 86 and 88 and stops breaking. However, when the belt-like portion 98 of the sheet material 46 that has been torn is further strongly pulled upward, the sheet material 46 is torn until it reaches the fourth slit row 91 and also torn in the fourth slit row 91. Thus, the band-like portion 98 is cut off from the package 51 as a band piece. When the folding body 41 of the lower stage 53 is taken out, the sheet material 46 may be pulled downward by placing a finger on the portion 94 (see FIG. 2) located below the third slit row 83. The sheet material 46 is torn along the first and second slit rows 81 and 82 and reaches the stopper slits 87 and 89 to stop the tearing. When the sheet material 46 is torn, a band-like portion 99 indicated by an imaginary lead line is generated, and when the band-like portion 99 is further strongly pulled downward, the sheet material 46 is torn until it reaches the fifth slit row 92, and Even the fifth slit row 92 is torn and the strip 99 is cut off from the package 51 as a strip.
[0022]
FIG. 4 is a view similar to FIG. 2 showing an example of the embodiment of the present invention. Each of the first slit row 81 and the second slit row 82 of the package 51 of FIG. 4 has an upper slit row 81a and a lower slit row 81b, and an upper slit row 82a and a lower portion, with the third slit row 83 as a boundary line. It is divided into slit rows 82b. Of spacing W between the first slit row 81 and the second slit rows 82, distance _{W 1} between the upper slit rows 81a and 82a is preferably in the range of 10 to 100 mm, the lower slit rows 81b and 82b distance _{W 2} is smaller than _{W 1,} preferably in the 5~20mm range smaller than _{W 1.} 4 formed in this way, upper slit rows 81a and 82a for breaking the sheet material 46 upward, and lower slit rows 81b and 82b for breaking the sheet material 46 downward. Can be easily identified, so that the direction when the sheet material 46 is broken is not mistaken.
[0023]
In the package 51 according to the present invention, the open-type disposable diaper 1 illustrated in FIG. 1 can be replaced with a pants-type diaper. The pants-type diaper is formed by folding both side portions located between the front waist area and the back waist area into the inside of the diaper so that the planar shape is a substantially rectangular shape. Such a package 51 is preferable. As the sheet material 46 used for the package 51, a plastic film, paper, or the like can be used. In the case where the film is uniaxially stretched, the sheet material 46 is easily broken when the direction in which the first and second slit rows 81 and 82 extend is matched with the film stretching direction. The first to fifth slit rows 81 to 83, 91 and 92 can be obtained by, for example, perforating the sheet material 46. The lengths of the individual slits in the slit rows 81 to 83, 91, and 92 and the distance between adjacent slits in the row may be designed to an appropriate value in consideration of the properties of the sheet material 46. In general, however, the length is preferably in the range of 0.5 to 3 mm, and the separation dimension is preferably in the range of 1 to 6 mm.
[0024]
The third slit row 83 extends generally in the horizontal direction, but protrudes downward as shown in FIG. 4 so that the sheet material 46 can be easily broken when the portion 93 is picked or pushed. Or may be inclined linearly so as to draw a V-shape. When the third slit row 83 is located 5 to 40 mm below the center line M, the bottom 44 of the folding body 41 located on the upper stage 52 is picked when the sheet material 46 is broken upward. It is exposed for ease. Any of the fourth and fifth slit rows 91 and 92 and the stopper slits 86, 87, 88 and 89 formed in the package 51 can be omitted.
[0025]
【The invention's effect】
In the disposable diaper package according to the present invention, the diaper folded in two is stacked in two upper and lower stages, and the crotch region of the upper diaper is placed on the edge of the lower diaper. Therefore, even if gathering occurs at the edge part with low rigidity or deformation due to the influence of packaging, the crotch area where the rigidity of the upper diaper that overlaps the edge part is gathered or deformed It will not be deformed under the influence of. In this package, a row of slits extending in the vertical direction is formed on both side edges forming one vertical ridge line orthogonal to each other, and between these slit rows, these slits are formed. A row of slits extending so as to intersect the row of the lower diaper is formed, and the row of slits extending so as to intersect the lower side is lower than a portion where the edge of the lower diaper and the crotch region of the upper diaper overlap. Therefore, if an opening for taking out a diaper is formed by tearing the sheet material of the package toward the upper side of the row of slits extending so as to intersect, the upper diaper is deformed in the opening. No inseam area is exposed. Since this crotch region can be easily identified from the edge of the lower diaper, the upper diaper can reliably and quickly take it out one by one. A band-shaped portion is formed from the sheet material that has been broken upward, and the band-shaped portion hangs down when the hand is released from the sheet material, and can block at least a part of the opening to prevent entry of dust into the package.
[Brief description of the drawings]
FIG. 1 is a view showing a procedure for folding a disposable diaper.
FIG. 2 is a partially broken perspective view of a disposable diaper package.
FIG. 3 is a view similar to FIG. 2 with respect to a package in which an opening is formed.
FIG. 4 is a view similar to FIG. 2 showing an example of the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Disposable diaper 2 Top sheet 3 Back sheet 4 Core 6 Front waist area 7 Rear waist area 8 Inseam area 16 Front edge 17 Rear edge 41 Diaper folding body 51 Packaging body 58 Top surface 59 Bottom surface 61 First side Part 62 Second side face part 63 Third side face part 64 Fourth side face part 71, 72, 73, 74 Edge line 81, 82 Row of slits (first and second slit rows)
83 Slit row (3rd slit row)
91, 92 Slit rows W, W ₁ , W ₂ spacing

Claims (5)

Including a liquid-permeable surface sheet, a liquid-impermeable back sheet, and a liquid-absorbent core interposed between the two sheets, and a front waistline region is formed in front of a crotch region having a front-rear direction, A disposable diaper having a front waistline and a rear waistline extending in the width direction of the front waistline and the back waistline is formed on the back side. In the crotch region, the diaper folded body is formed by being folded in two in the front-rear direction, and a plurality of the diaper folded bodies are packaged by a sheet material in a state of being stacked in two upper and lower stages. According to the disposable diaper packaging body in which a hexahedron is formed by these diaper folded body and sheet material,
The plurality of diaper folding bodies located in each of the two upper and lower tiers are folded so that each height and width are the same, with the crotch region facing downward, and the front and rear end edges being The folded body positioned in the upper stage on the front and rear end edges of the diaper folded body positioned in the lower stage, and arranged in contact with one of the front and rear waist areas. the crotch region has been put in,
The hexahedron is parallel to each other and spreads in the horizontal direction, the top surface and the bottom surface, the first and second side surfaces extending in parallel to each other in the vertical direction, and the first and second side surfaces extending in parallel to each other in the vertical direction. Each of the first and second side surfaces and each of the third and fourth side surfaces are orthogonal to each other to form four ridge lines. And the sheet material can be easily broken along the ridgeline formed by the both side surface portions on both side surface portions forming any one of the four ridgelines. A row of slits extending in the vertical direction is formed, and the folding body positioned in the upper stage is formed between the rows of slits formed on the side surface portions and the rows of slits. The slit below the crotch region The packaging body rows of slits extending in a direction intersecting with each column, characterized in that interposed. Package of claim 1 wherein the uniform spacing of the columns each other of the slits extending in the both side surface portions in formed by vertically in the vertical direction. The packaging according to claim 1 or 2 , wherein the interval between the rows of slits formed on the side surface portions and extending in the vertical direction is wider above the row of slits extending in the intersecting direction and narrower below. body. The rows of slits extending in the intersecting direction are either curved so as to be convex downward in the vertical direction, or inclined downward so as to draw a V-shape. Item 4. The package according to any one of Items 1 to 3 . At least one of the upper and lower extension lines of each of the slit rows extending in the vertical direction formed on the both side surfaces is longer than the interval between the slit rows, and The package according to any one of claims 1 to 4 , wherein a row of slits extending in the horizontal direction intersecting with the extension lines is formed.

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