JP4084009B2 - Absorbent article and its packaging structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention, sanitary napkin, panty liner, textile sheets, relates to a packaging structure of the absorbent product articles which absorb receiving a body fluid such as incontinence pads.
[0002]
[Prior art]
For example, in a sanitary napkin, it is known to prevent misalignment by using an adhesive layer provided in advance on the back surface of the napkin body (the surface opposite to the use surface) to fasten it to the inner surface of the undergarment. ing.
[0003]
On the other hand, forming an adhesive layer on the use surface instead of the back surface of the napkin body is known from Japanese translations of PCT publication Nos. 2000-505597 and 505698 (hereinafter referred to as “prior art”). However, there is no teaching in the prior art specifically on which part of the use surface the pressure-sensitive adhesive layer is provided.
[0004]
[Problems to be solved by the invention]
However, the prior art has a great advantage in that the sanitary napkin can be simply attached to the skin. On the other hand, when the adhesive on the use side is applied to, for example, a menstrual drainage site, It was found that the absorbability of blood is inhibited and the adhesiveness of the adhesive is not sufficient for a portion having many pubic hairs.
[0005]
Therefore, the main problem of the present invention is to provide an absorbent article that eliminates the obstruction of menstrual blood absorbability and exhibits sufficient adhesiveness to the skin to prevent displacement. It is in.
[0006]
Another object is to provide a packaging structure capable of suitably packaging the absorbent article.
[0007]
Another problem can be estimated by the following explanation.
[0008]
[Means for Solving the Problems]
The present invention that has solved the above problems is as follows.
[0009]
[0010]
[0011]
[0012]
[0013]
(Function and effect)
[0014]
<Invention of Claim 1 >
It has a body fluid permeable top sheet that forms a use surface that touches the skin, a body fluid impervious back sheet, and an absorbent element interposed therebetween, and adheres to the skin of the wearing human body at the front and rear ends of the use surface. It is a packaging structure of an absorbent article each having an adhesive part,
A peel / exterior sheet that is wider than the width of the absorbent article and longer than the length in the front-rear direction is disposed opposite the back surface opposite to the use surface, and the front and rear ends of the peel / exterior sheet are disposed on the absorbent article. The adhesive part is covered with the front and rear end parts of the peel-and-use exterior sheet that has reached the use surface side while covering the front and rear end parts of the use surface by going around the front and rear end edges , and
In this covered state, the whole is folded in the front-rear direction so that the use surface side is inside, and the absorbent article is wrapped by overlapping the front and rear of the release / exterior sheet, and one end of the release / exterior sheet in the folded state Part and other parts are temporarily fixed, and both sides in the width direction of the peel-and-use exterior sheet are sealed,
A packaging structure for absorbent articles.
[0015]
(Function and effect)
Since the adhesive portion is on the use surface of the front and rear end portions, displacement can be prevented. Moreover, since the adhesive portion is only on the use surface of the front and rear end portions, the menstrual blood absorbability at the central portion is not hindered. Furthermore, the front and rear end portions have few pubic hairs, and even if there are pubic hairs on the front side, most of them are in a sleeping state, so that adhesiveness with a sufficient adhesive is exerted on the skin, and displacement can be prevented.
In addition, the entire absorbent article is hygienic because the entire absorbent article is folded in the front-rear direction in a state where the absorbent article is covered with the release / exterior sheet, and the release / exterior sheet overlaps and wraps the absorbent article. In addition to being packaged, the whole can be folded in the front-rear direction to achieve compactness.
Further, the made to face the peeling combined outer sheet on the back side, by the front and rear ends of the release combined outer sheet extended to the use surface side so Wrapping front and rear ends of the absorbent article, coating each adhesive portion Each adhesive part can be protected.
In addition, the “absorbent article” in the present invention means a sanitary napkin, a panty liner, a cage sheet, or an incontinence pad.
[0016]
<Invention of Claim 2 >
In each of the front and rear end portions on the use surface, the adhesive portions are formed in a row along the width direction, or a plurality of adhesive portions along the front-rear direction are formed at intervals in the width direction, or the width direction The packaging structure of the absorbent article according to claim 1, wherein a plurality of adhesive portions along the front and rear are formed at intervals in the front-rear direction .
[0017]
[0018]
<Invention of Claim 3 >
In the middle of the absorbent article in the longitudinal direction, a pressure-sensitive adhesive is provided on a surface facing the back surface of the release / exterior packaging sheet, and at least the back surface facing the pressure-sensitive adhesive is subjected to a release treatment, and the release / exterior packaging The packaging structure of an absorbent article according to claim 1 or 2, wherein an intermediate part of the sheet is fixed to the back surface by the adhesive .
[0019]
(Function and effect)
Since the intermediate part of the peel-and-use exterior sheet is fixed to the back surface of the absorbent article by the adhesive, it is possible to prevent the peel-and-use exterior sheet from being lifted from the absorbent article during packaging, for example, front and rear tri-fold packaging, Stable production operation and logistics can be performed.
[0020]
<Invention of Claim 4 >
The absorptivity according to any one of claims 1 to 3, wherein the release / exterior exterior sheet is formed by integrating a release sheet subjected to a release treatment on an opposing surface of the adhesive portion of the exterior sheet. Packaging structure of goods.
[0021]
[0022]
[0023]
[0024]
<Invention of Claim 5 >
It has a body fluid-permeable top sheet that forms a use surface that touches the skin, a body fluid-impermeable back sheet, and an absorbent element interposed therebetween, and is adhered to the skin of the wearing human body on both sides of the use surface. a packaging structure for an absorbent article having that adhesive portion, respectively,
A release / exterior sheet that is wider than the width of the absorbent article and longer than the length in the front-rear direction is disposed opposite the back surface opposite to the use surface, and both side portions of the release / exterior sheet are on the side of the absorbent article. Each of the adhesive portions is covered with both sides of the peel-and-use exterior sheet that has reached the use surface side , and covers both sides of the use surface by going around the edge , and
In this covered state, the whole is folded in the front-rear direction so that the use surface side is inside, and the absorbent article is wrapped by overlapping the front and rear of the release / exterior sheet, and one end of the release / exterior sheet in the folded state Part and other parts are temporarily fixed,
A packaging structure for absorbent articles.
[0025]
(Function and effect)
Since the adhesive portion is on the use surface of both side portions, it is possible to prevent the lateral displacement in particular.
Further, the made to face the peeling combined outer sheet on the back side, by the both side portions of the release combined outer sheet extended to the use surface side so Wrapping side edges of the absorbent article, coating each adhesive portion, each The adhesive part can be protected.
Moreover, compactization can be achieved by folding the whole in the front-rear direction. Furthermore, in this state, it is folded in the front-rear direction, and the front and rear of the release / exterior sheet overlap and wrap the absorbent article, so that it is hygienic without performing the sealing of the side edge of the release / exterior sheet It becomes.
[0026]
<Invention of Claim 6 >
The packaging structure for absorbent articles according to claim 5, wherein the adhesive portions are formed in a line along the front-rear direction in each of both side portions on the use surface .
[0027]
<Invention of Claim 7 >
The packaging structure of an absorbent article according to claim 5 or 6, wherein the release / exterior sheet is formed by integrating a release sheet that has been subjected to a release treatment on an opposing surface of the adhesive portion of the exterior sheet .
[0028]
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter , embodiments of the present invention will be described in more detail with reference to the drawings.
"First comparative form (a form not included in the present invention )"
In the first comparative form shown in FIGS. 1 to 5, the absorbent article X <b> 1 whose representative example is a sanitary napkin is substantially oval in the unfolded state. In the absorbent article X1, an absorbent element is interposed between the body fluid-permeable top sheet 1 and the body fluid-impermeable back sheet 2 on the use surface side as a surface that contacts the skin. Absorption This element has toward the back side from the use surface side, the first sheet 3, the second sheet 4, the third sheet 5, a fourth sheet 6. The first sheet 3 and the second sheet 4 are made of a liquid-permeable material. The 3rd sheet | seat 5 exhibits the high absorptivity including a polymer absorption resin, and the 2nd sheet | seat 4 is wound up as shown in FIG. The fourth sheet 6 is made of, for example, a thick plastic sheet that is impermeable to body fluids. A top sheet 1 and a back sheet 2 enclose this type of absorbent element, and their peripheral portions are sealed by, for example, heat sealing. As shown in FIG. 1, the top sheet 1 and the first sheet 3 are partially integrated by embossing e from the surface side to enhance absorbability.
[0030]
Now, the working surfaces of the front and rear end portions of the intake Osamusei article X1, the adhesive portion 10 is formed to expose. The use-side pressure-sensitive adhesive part (or pressure-sensitive adhesive part 10 or pressure-sensitive adhesive part 20 described later) is made of a hot-melt adhesive, a pressure-sensitive adhesive, etc., and has adhesiveness to the human skin. Means all things.
[0031]
Adhesive portion 10 of this is formed by a layer state. The position of the adhesive portion 10 is preferably a position where the absorbing element is present rather than the flap portion.
[0032]
Now, a covering material is prepared for packaging of the absorbent article X1. This dressing is peeled combined outer sheet 31 made of thin plastic sheet one side having releasability, with wider than the width of the absorbent article X1 opposite to the working surfaces, preferably as shown The length of the absorbent article X1 is longer than the length of the absorbent article X1, and the peeling / exterior sheet 31 covers the adhesive portions 10 and 10. Further, a fixing tape 60 having an adhesive layer 60a at the free end is fixed to the non-releasable surface of the base in the longitudinal direction end of the release / exterior sheet 31 and fixed to the free end. The leading end of the fastening tape 60 is folded back to form a knob.
[0033]
As shown in FIG. 3, the absorbent article X <b> 1 is applied to the releasable surface of the release / exterior sheet 31, and the adhesive portions 10 and 10 are covered with the release / exterior sheet 31. Next, as shown in FIG. 4, on the side opposite to the attachment side of the fastening tape 60, the release / exterior exterior sheet 31 and the absorbent article X <b> 1 are folded to the back side, and then the attachment side of the fastening tape 60 is folded. Then, it is overlapped on the outer surface of the previously folded surface, and is adhered via the adhesive layer 60a with the fastening tape 60 as shown in FIG. Both side portions of the peeling / exterior packaging sheet 31 are sealed with a heat seal 61 or the like.
[0034]
Here, the embodiments described later are also the same, but instead of the fastening tape 60, the surface opposite to the inner surface of the folded edge portion of the peeling / exterior sheet 31 is sealed by heat sealing 61. You can also.
[0035]
"First Embodiment (related to the first aspect of the invention)"
In the first embodiment shown in FIGS. 6 to 8, the peeling / exterior sheet 31 that is wider than the width of the absorbent article X <b> 1 and longer than the length in the front-rear direction is used, and the releasable surface is the back sheet of the absorbent article X <b> 1. In a state where it is arranged so as to face 2, packaging is performed by the peel-and-use exterior sheet 31.
[0036]
At the time of packaging, from the state of FIG. 6, the front and rear end portions of the peel-and-use exterior sheet 31 wrap around the front and rear end edges of the absorbent article X1 and bring them to the use surface side (this state is also illustrated in FIG. 8). Each adhesive part 10 and 10 is covered. After that, as in the first comparative embodiment, it is folded in three along the valley fold line in FIG. 7, and the same packaging form as in FIG. 5 is taken.
[0037]
" Second comparative form (a form not included in the present invention )"
In the first comparative form, the adhesive part has at the front and rear end portions, whereas in the second comparative form shown in FIGS. 9 and 10, the adhesive parts 20 and 20 are provided on both sides of the absorbent article X2. . This adhesive portion 20 is formed in a layer state. The position of the adhesive portion 20 is preferably a position where the absorbing element is present rather than the flap portion.
[0038]
At the time of packaging, as in the first comparative embodiment, as shown in FIG. 10, the absorbent article X2 is applied to the releasable surface of the release / exterior exterior sheet 31, and each adhesive portion 20, 20 It is covered with a peeling / exterior sheet 31. Next, as in the first comparative embodiment, tri-folding and sealing are achieved.
[0039]
"Second Embodiment (related to the invention of claim 5, wherein)"
In the second embodiment, when packaging the absorbent article X2 having the adhesive portions 20 and 20 on both sides according to the second comparative embodiment, as in the first embodiment, as shown in FIG. the peeling combined outer sheet 31, Ru Monodea packaging on which is disposed to face its releasing property surface on the back side of the absorbent article X2. At the time of packaging, as shown in FIG. 12, both end portions of the release / exterior sheet 31 wrap around the side edges of the absorbent article X <b> 2 and bring them to the use surface side to cover the adhesive portions 20 and 20. After that, like the first comparative embodiment, it is folded in three along the valley fold line in FIG. 12, and the packaging form similar to that in FIG. 5 is taken.
[0040]
"Other forms"
In the above example, as the form of forming the adhesive part 10 as shown in FIG. 1, the form shown in FIG. 13 and the like can be adopted in addition to the form of forming a line along the width direction before and after the absorbent article X1. . That is, (A) of FIG. 13 is an example in which 10, 10... Are formed in the adhesive part 10 along the front-rear direction with an interval in the width direction, and the adhesive part 10 group is an edge of the absorbent article X1. The arc shape is almost parallel to. FIG. 13B is an example in which the adhesive portions 10, 10... Are formed at the triangular corners along the width direction, and FIG. 13C is along the width direction with an interval in the front-rear direction. .. Is an example in which the adhesive portions 10, 10... Having a longer width toward the center in the front-rear direction are formed. FIG. 13D illustrates the adhesive portions 10 along the front-rear direction at intervals in the width direction. This is an example in which the length in the front-rear direction toward the center in the width direction is increased and the positions of the end portions on the center side in the width direction are aligned. In addition, the shape of the single adhesive part itself and the arrangement form can be selected as appropriate. As shown in FIG. 13, in the case of forming a plurality of adhesive portions on one end side, when the absorbent article X1 is peeled from the skin after use, in the aspects (B) and (C), Although it is easy to feel pain due to a continuous peeling sensation, the modes (A) and (D) are desirable because they provide a continuous peeling sensation and less pain.
[0041]
Furthermore, although the adhesion part 10 and the adhesion part 20 are formed in the said example substantially linearly, an adhesion part can also be formed in dot shape (dot shape) etc. Moreover, although the adhesive part 10 and the adhesive part 20 are directly formed on the use surface, if necessary, a base material sheet is fixed to the use surface at the formation site, and the adhesive sheet is adhered on the base material sheet. The part 10 and the adhesive part 20 can also be formed. In addition, although the adhesion part 10 and the adhesion part 20 of the said example are formed as a layer, as long as the site | part shows adhesiveness with respect to skin, it is not limited to forming in a layer form. Moreover, the absorbent article which has the adhesion parts 10 and 10 in the front and back of a use surface, and the adhesion parts 20 and 20 on both sides can also be provided.
[0042]
On the other hand, in the above example, the pressure-sensitive adhesive portion 10 was covered with a covering and covering sheet 31 made of a release / exterior sheet 31, for example, a release-treated plastic sheet such as a silicon treatment or a paper subjected to sealing treatment. As described above, when covering with this covering material, there are cases from the use surface side and from the back surface side. The previous example of FIG. 9 is a coating example from the back side. In comparison with the illustrated example of FIG. 9 , a covering example from the use surface side will be described again. FIG. 14 shows an example of covering from the use surface side by the peeling / exterior sheet 31 (a comparative example not included in the present invention). ) . FIG. 15 shows that the release sheet 32 on which the opposite surface of the pressure-sensitive adhesive portion 10 is subjected to release treatment such as silicon treatment is integrated with the exterior sheet 34 by the hot melt adhesive 33, or the peel strength of the hot melt adhesive 33 with respect to the release sheet 32 is shown. The adhesive sheet 10 is substantially integrated by making it larger than the peel strength of the adhesive part 10 with respect to the release sheet 32, and when the outer sheet 34 is peeled off, the release sheets 32, 32 are integrated into the adhesive part 10, 10 is a comparative example not included in the present invention . In this embodiment, since it is not necessary to release the exterior sheet 34, there is an advantage that a non-woven fabric excellent in touch in addition to the plastic sheet can be used at a relatively low cost. As shown in FIG. 16, the release sheet 32 may be a single sheet without being divided into front and rear (a comparative example not included in the present invention) . In this case, the intermediate can be fixed by the hot melt adhesive 33 in order to prevent the intermediate lift.
[0043]
FIG. 17 shows another example of the coating from the back side. Similar to the embodiment of FIG. 15, the hot-melt adhesive is used to release the release sheet 32 in which the opposite surface of the pressure-sensitive adhesive portion 10 is subjected to release treatment such as silicon treatment. 33 is integrated into the exterior sheet 34 or substantially integrated by making the peel strength of the hot melt adhesive 33 with respect to the release sheet 32 greater than the peel strength of the adhesive portion 10 with respect to the release sheet 32. When the sheet 34 is peeled off, the release sheets 32 and 32 are integrally peeled off from the adhesive portions 10 and 10. FIG. 18 also shows an example of coating from the back side. In the middle in the longitudinal direction, an adhesive 35 is provided on the exterior sheet 34, and at least the back side of the back sheet 2 opposite to the adhesive 35 is preliminarily released from the mold. It is something to keep. In this example, when the outer sheet 34 is held and peeled off, the release sheets 32 and 32 are integrally peeled off from the adhesive portions 10 and 10, and the adhesive 35 is peeled off from the back surface of the back sheet 2. Further, in the packaged state, unlike the form of FIG. 17, the intermediate part of the exterior sheet 34 is fixed to the back surface of the back sheet 2 by the adhesive 35. 34 can be prevented from floating from the absorbent article X1, and stable production operation and physical distribution can be performed.
[0044]
As for the position of the adhesive 35, it is desirable to provide a plurality of, preferably on the front and rear and both sides in the longitudinal direction of the back surface of the back sheet 2. In the form of FIG. 18, the opening property of the exterior sheet 34 is higher when the peel strength of the adhesive 35 with respect to the release treatment surface of the back sheet 2 is larger than the peel strength of the adhesive portion 10 with respect to the release treatment surface of the release sheet 32. Desirable to improve.
[0045]
FIG. 19 shows an example in which the absorbent article X2 is covered with the release / exterior sheet 31 as shown in FIG. 12 using the exterior sheet 24 and the release sheet 32. It is. That is, the release sheet 32 on which the opposing surface of the adhesive portion 20 is subjected to release treatment such as silicon treatment is integrated with the exterior sheet 34 by the hot melt adhesive 33, or the peel strength of the hot melt adhesive 33 with respect to the release sheet 32 is peeled off. It is substantially integrated by making it larger than the peel strength of the adhesive portion 20 with respect to the sheet 32, and when the outer sheet 34 is held and peeled off, the release sheets 32, 32 are united and the adhesive portions 20, 20 are integrated. It is made to peel off from. Also in the example of FIG. 12 including this example, in the example in which the absorbent article X2 is rolled up from the back side, the side part of the absorbent article X2 is covered in the trifold form in which the use surface side is folded in the longitudinal direction. Since it is covered with the material, it is possible to omit sealing the side portion with the heat seal 61 or the like.
[0046]
[0047]
[0048]
[0049]
[0050]
[0051]
[0052]
【The invention's effect】
As described above, according to the present invention, it is possible to obtain an absorbent article that eliminates the obstruction of menstrual blood absorbability and exhibits sufficient adhesiveness to the skin to prevent displacement. Can do. Furthermore, the said absorbent article can be packaged suitably.
[Brief description of the drawings]
FIG. 1 is a partially broken development view of an absorbent article X1 according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view thereof.
FIG. 3 is a view from the back side of the unpacked and unfolded state.
FIG. 4 is a schematic perspective view of a packaging process.
FIG. 5 is a schematic perspective view of a packaged state.
FIG. 6 is a view from the use surface side in a state where the packaging is unpacked and developed according to the second embodiment.
FIG. 7 is a view from the use surface side for explaining a packaging form according to the second embodiment.
FIG. 8 is a side view thereof.
FIG. 9 is a development view of an absorbent article X2 according to a third embodiment of the present invention.
FIG. 10 is a view from the back side in a state where the packaging is unpacked and unfolded according to the third embodiment.
FIG. 11 is a view from the use side in a state where the packaging is unpacked and unfolded according to the third embodiment.
FIG. 12 is a schematic view of a packaging process according to the third embodiment.
FIG. 13 is an explanatory diagram of various arrangement forms of an adhesive portion.
FIG. 14 is a developed state schematic diagram showing another packaging form.
FIG. 15 is a developed state schematic diagram showing another packaging form.
FIG. 16 is a developed state schematic diagram showing another packaging form.
FIG. 17 is a developed state schematic diagram showing another packaging form.
FIG. 18 is a developed state schematic diagram showing another packaging form.
FIG. 19 is a developed state schematic diagram showing another packaging form.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Top sheet, 2 ... Back sheet, 3 ... 1st sheet, 4 ... 2nd sheet, 5 ... 3rd sheet, 6 ... 4th sheet, 10, 20 ... Adhesive part, 31 ... Peeling and exterior sheet, 32 ... Release sheet, 33 ... hot melt adhesive, 34 ... exterior sheet, 35 ... adhesive part, 60 ... fastening tape, 60a ... adhesive layer, 61 ... heat seal, X1, X2 ... absorbent article, e ... emboss.

Claims (7)

It has a body fluid permeable top sheet that forms a use surface that touches the skin, a body fluid impervious back sheet, and an absorbent element interposed therebetween, and adheres to the skin of the wearing human body at the front and rear ends of the use surface. It is a packaging structure of an absorbent article each having an adhesive part,
A peel / exterior sheet that is wider than the width of the absorbent article and longer than the length in the front-rear direction is disposed opposite the back surface opposite to the use surface, and the front and rear ends of the peel / exterior sheet are disposed on the absorbent article. The adhesive part is covered with the front and rear end parts of the peel-and-use exterior sheet that has reached the use surface side while covering the front and rear end parts of the use surface by going around the front and rear end edges , and
In this covered state, the whole is folded in the front-rear direction so that the use surface side is inside, and the absorbent article is wrapped by overlapping the front and rear of the release / exterior sheet, and one end of the release / exterior sheet in the folded state Part and other parts are temporarily fixed, and both sides in the width direction of the peel-and-use exterior sheet are sealed,
A packaging structure for absorbent articles. In each of the front and rear end portions on the use surface, the adhesive portions are formed in a row along the width direction, or a plurality of adhesive portions along the front-rear direction are formed at intervals in the width direction, or the width direction The packaging structure of the absorbent article according to claim 1, wherein a plurality of adhesive portions along the front and rear are formed at intervals in the front-rear direction . In the middle of the absorbent article in the longitudinal direction, a pressure-sensitive adhesive is provided on a surface facing the back surface of the release / exterior packaging sheet, and at least the back surface facing the pressure-sensitive adhesive is subjected to a release treatment, and the release / exterior packaging The packaging structure of an absorbent article according to claim 1 or 2, wherein an intermediate part of the sheet is fixed to the back surface by the adhesive . The absorptivity according to any one of claims 1 to 3, wherein the release / exterior exterior sheet is formed by integrating a release sheet subjected to a release treatment on an opposing surface of the adhesive portion of the exterior sheet. Packaging structure of goods. It has a body fluid-permeable top sheet that forms a use surface that touches the skin, a body fluid-impermeable back sheet, and an absorbent element interposed therebetween, and is adhered to the skin of the wearing human body on both sides of the use surface. a packaging structure for an absorbent article having that adhesive portion, respectively,
A release / exterior sheet that is wider than the width of the absorbent article and longer than the length in the front-rear direction is disposed opposite the back surface opposite to the use surface, and both side portions of the release / exterior sheet are on the side of the absorbent article. Each of the adhesive portions is covered with both sides of the peel-and-use exterior sheet that has reached the use surface side , and covers both sides of the use surface by going around the edge , and
In this covered state, the whole is folded in the front-rear direction so that the use surface side is inside, and the absorbent article is wrapped by overlapping the front and rear of the release / exterior sheet, and one end of the release / exterior sheet in the folded state Part and other parts are temporarily fixed,
A packaging structure for absorbent articles. The packaging structure for absorbent articles according to claim 5, wherein the adhesive portions are formed in a line along the front-rear direction in each of both side portions on the use surface . The packaging structure of an absorbent article according to claim 5 or 6, wherein the release / exterior sheet is formed by integrating a release sheet that has been subjected to a release treatment on an opposing surface of the adhesive portion of the exterior sheet .

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