CN214511526U

CN214511526U - Package for absorbent article

Info

Publication number: CN214511526U
Application number: CN201990000767.0U
Authority: CN
Inventors: 小森菜绪子; 北川雅史; 谷尾俊幸
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2018-06-05
Filing date: 2019-05-29
Publication date: 2021-10-29
Anticipated expiration: 2029-05-29
Also published as: WO2019235326A1; TWI837135B; KR20210000386U; TW202011914A

Abstract

The utility model provides a can be easily with the absorbent article's of main part peel off piece from main part bonding portion packing body that peels off when expanding the packing body. In a first folded state in which a fin section (3) is folded onto a skin-facing surface side (T1) of a main body section (3), a rear end edge (110R) of the package is folded toward the inside of the package with a first fold line (FL1) extending in the width direction as a base point, and is folded toward the inside of the package with a second fold line (FL2) located on the front end edge side as a base point. The main body peeling sheet (75) is joined to the packaging sheet (100) via the main body fixing section (91). In a third folded state after being folded with the second fold line as a base point, a flap fixing portion (92) for joining the packaging sheet and the flap release sheet is provided in a region where the packaging sheet and the flap release sheet face each other. In the third folded state, the body fixing portion and the flap fixing portion are overlapped in the thickness direction.

Description

Package for absorbent article

Technical Field

The present invention relates to an absorbent article package in which absorbent articles are individually packaged by a packaging sheet.

Background

Patent document 1 discloses an absorbent article package in which absorbent articles are individually packaged by a package sheet. The absorbent article of patent document 1 includes a main body and a flap portion extending outward in the width direction of the main body. The package of the absorbent article comprises: a flap release sheet covering the flap adhesive portion in a state where the flap portion is folded to the skin-facing surface side of the main body portion; a body release sheet covering the body adhesive section; and a packaging sheet that is positioned on the non-skin-facing surface side of the main body release sheet and that encloses the absorbent article.

The absorbent article package of patent document 1 is folded with a first fold line extending in the width direction as a base point in a state where the flap portion is folded on the skin-facing surface side of the main body portion, and is folded with a second fold line extending in the width direction and located on the front side of the first fold line as a base point in a state where the flap portion is folded with the first fold line as a base point. The packaging sheet and the flap-peeled piece are joined to each other in a region where the packaging sheet and the flap-peeled piece face each other in a state folded with the second fold line as a base point.

The absorbent article package is folded with a third fold line extending in the width direction and located on the front side of the second fold line as a reference point, in a state where the absorbent article package is folded with the second fold line as a reference point. The front end edge of the packaging sheet is fixed to the non-skin-facing surface side of the region between the first fold line and the second fold line of the packaging sheet by the label tape in a state folded with the third fold line as a base point.

When the absorbent article package of patent document 1 is developed, the front portion of the absorbent article is developed by grasping the vicinity of the front end portion of the package such as the label tape, and then the front portion of the absorbent article is grasped and pulled in the development direction, whereby the body adhesive portion is peeled off from the body release sheet and the flap release sheet is peeled off from the flap adhesive portion (paragraph 0046 of patent document 1).

Prior art documents

Patent document

Patent document 1: japanese patent laid-open publication No. 2011-45608

SUMMERY OF THE UTILITY MODEL

In the package of the absorbent article, a body release sheet and a package sheet are disposed on the non-skin-facing surface side of the absorbent article. When the body adhesive section is peeled off from the body release sheet during the unfolding of the absorbent article package, the vicinity of the distal end portion of the package sheet such as the label tape is grasped, and the package sheet is pulled in the unfolding direction with respect to the absorbent article. However, the main body adhesive portion of the absorbent article is not in contact with the package sheet but in contact with the main body release sheet. Therefore, it is sometimes difficult to peel the flap release sheet from the flap adhesive portion.

Therefore, in the package of the absorbent article in which the absorbent article is individually packaged by the package sheet, there is a demand for a package of the absorbent article in which the main body release sheet can be easily released from the main body adhesive part when the package is unfolded.

Means for solving the problems

In one form of the absorbent article package, the absorbent articles are individually packaged by the packaging sheet. The absorbent article has: a main body portion; a fin portion that protrudes outward in the width direction of the main body portion; a main body adhesive section which is disposed on a non-skin-facing surface side of the main body section and has an adhesive agent for fixing the main body section to underwear; a flap adhesive section disposed on a non-skin-facing surface side of the flap section and having an adhesive for fixing the flap section to underwear; a body release sheet covering the body adhesive portion and joined to the packaging sheet via a body fixing portion; and a flap release sheet that covers the flap adhesive portion in a state in which the flap portion is folded to the skin-facing surface side of the main body portion. The flap portion is folded to a first folded state on a skin facing surface side of the main body portion, and the first end edge of the outer end edge of the front-back direction of the package is folded with a first fold line extending in the width direction as a base point to the inside of the package, and the second end edge of the outer end edge of the front-back direction of the package is folded with a second fold line extending in the width direction and located on a second end edge side opposite to the first end edge as a base point to the inside of the package in a second folded state in which the first fold line is folded with the base point. At least a part of the flap adhesive portion and the flap release sheet is disposed on the second end edge side of the second fold. In a third folded state after being folded with the second fold line as a base point, a flap fixing portion for joining the packaging sheet and the flap peeling sheet is provided in a region where the packaging sheet and the flap peeling sheet face each other. In the third folded state, the body fixing portion and the flap fixing portion overlap in a thickness direction.

Another embodiment of the absorbent article package is an absorbent article package in which the absorbent articles are individually packaged by the packaging sheet. The absorbent article has: a main body portion having an absorbent core; a pair of wing pieces extending outward in the width direction of the main body; a main body adhesive section which is disposed on a non-skin-facing surface side of the main body section and has an adhesive agent for fixing the main body section to underwear; a pair of flap adhesion parts disposed on the non-skin-facing surface side of each of the flap parts and having an adhesive for fixing the main body part to underwear; and a flap release sheet that covers the pair of flap adhesive portions in a state in which the flap portion is folded to the skin-facing surface side of the main body portion. The packaging body will the flap portion is folded to under the first folding state of the skin opposition side of main part, as the first terminal edge of the outer terminal edge of the fore-and-aft direction of packaging body uses the first crease that extends along the width direction as the base point to the inboard of packaging body is folded, and, under the second folding state that uses first crease to fold as the base point, with the edge the second crease that extends in the width direction and be located in with the second terminal edge side of the opposite side of first terminal edge is the base point to the inboard of packaging body is folded. At least a part of the flap adhesive portion and the flap release sheet is disposed on the second end edge side of the second fold. In a third folded state after being folded with the second fold line as a base point, a flap fixing portion for joining the packaging sheet and the flap peeling sheet is provided in a region where the packaging sheet and the flap peeling sheet face each other. The absorbent core has a low weight per unit area portion where the weight per unit area of the absorbent core is lower than that of the surroundings. The low basis weight portion has a second side low basis weight region extending in the front-rear direction at a position closer to the second end edge than the second fold.

In addition, another embodiment of the absorbent article package is an absorbent article package in which the absorbent articles are individually packaged by the package sheet. The absorbent article has: a main body portion; a pair of wing pieces extending outward in the width direction of the main body; a pair of flap adhesive parts which are respectively arranged on the non-skin-facing sides of the flap parts and have an adhesive for fixing the flap parts to underwear; and a flap release sheet that covers the flap adhesive portion in a state in which the flap portion is folded to the skin-facing surface side of the main body portion. The packaging body will the flap portion is folded to under the first folding state of the skin opposition side of main part, as the first terminal edge of the outer terminal edge of the fore-and-aft direction of packaging body uses the first crease that extends along the width direction as the base point to the inboard of packaging body is folded, and, under the second folding state that uses first crease to fold as the base point, with the edge the second crease that extends in the width direction and be located in with the second terminal edge side of the opposite side of first terminal edge is the base point to the inboard of packaging body is folded. At least a part of the flap adhesive part and the flap release sheet is disposed on the second end edge side of the absorbent article with respect to the second fold. In a third folded state after being folded with the second fold line as a base point, a flap fixing portion for joining the packaging sheet and the flap peeling sheet is provided in a region where the packaging sheet and the flap peeling sheet face each other. The main body portion has: an absorbent core; a top sheet located on the skin-facing surface side of the absorbent core; and a standing leak-proof hem located on the skin-facing surface side of the top sheet. The leakage-proof ruffle has: a contracted portion that rises by contraction of the leakage-preventing elastic member; and a base point portion serving as a base point from which the constricted portion rises. The base point portion has a first base point portion located on the outer side in the width direction than the constricted portion. The constricted portion has: a protruding portion that extends inward in the width direction from the first base point portion; and a folded portion folded to the outside in the width direction with an inner edge of the extension portion as a base point. The folded portion has the leakage preventing elastic member and is configured to be capable of standing up with respect to the protruding portion in a flap region extending in the width direction from the flap portion. The outer edge of the folded portion is disposed further outward in the width direction than the absorbent core.

Drawings

Fig. 1 is a plan view of the package in an unfolded state as viewed from the skin-facing surface side.

Fig. 2 is a plan view of the package in an unfolded state as viewed from the non-skin-facing side.

Fig. 3 is a plan view of the package body viewed from the skin-facing surface side in a first folded state in which the flap portions are folded to the skin-facing surface side of the main body portion.

Fig. 4 is a plan view of the package body in the first folded state, as viewed from the non-skin-facing surface side.

Fig. 5 is a sectional view taken along line 1A-1A shown in fig. 1.

Figure 6 is a top view of an absorbent core.

Fig. 7 is a cross-sectional view of the absorbent article in an unfolded state, taken along the line 1B-1B shown in fig. 1.

Fig. 8 is a cross-sectional view of the absorbent article taken along the line 1B-1B shown in fig. 1 in a standing state.

Fig. 9 is a cross-sectional view of the absorbent article in an unfolded state, taken along the line 1C-1C shown in fig. 1.

Fig. 10 is a cross-sectional view of the absorbent article taken along the line 1C-1C shown in fig. 1 in an erected state.

Fig. 11 is a perspective view of the package in a packaged state.

Fig. 12 is a sectional view taken along line 11A-11A shown in fig. 11.

Fig. 13 shows the package in the

unfolding steps

2 and 3.

Fig. 14 shows the package in the unfolding step 4.

Fig. 15 shows the package in the unfolding step 5.

Fig. 16 shows the package in the unfolding steps 6 and 7.

Fig. 17 shows the package in the unfolding step 7.

Fig. 18 is a perspective view schematically showing the package 110 in the unfolding process 4.

Fig. 19 is a cross-sectional view taken along line 13A-13A of fig. 13.

Fig. 20 is a view showing the package in the unfolding step 4 in a cross section taken along line 13A-13A shown in fig. 13.

Fig. 21 is a view showing the package in the unfolding step 4 in a cross section taken along line 13A-13A shown in fig. 13.

Fig. 22 is a view showing the package in the unfolding step 4 in a cross section taken along line 13A-13A shown in fig. 13.

Fig. 23 is a diagram for explaining a deformed form of the absorbent core.

Fig. 24 is a perspective view schematically showing the package 110 in the unfolding process 4.

Detailed Description

(1) Brief description of the embodiments

At least the following matters will be made clear from the description of the present specification and the drawings.

In one form of the absorbent article package, the absorbent articles are individually packaged by the packaging sheet. The absorbent article has: a main body portion; a fin portion that protrudes outward in the width direction of the main body portion; a main body adhesive section which is disposed on a non-skin-facing surface side of the main body section and has an adhesive agent for fixing the main body section to underwear; a flap adhesive section disposed on a non-skin-facing surface side of the flap section and having an adhesive for fixing the flap section to underwear; a body release sheet covering the body adhesive portion and joined to the packaging sheet via a body fixing portion; and a flap release sheet that covers the flap adhesive portion in a state in which the flap portion is folded to the skin-facing surface side of the main body portion. In the package, a first end edge, which is an outer end edge in a front-rear direction of the package, is folded inward of the package with a first fold line extending in a width direction as a base point, and in a state where the package is folded with the first fold line as the base point, the package is folded inward of the package with a second fold line extending in the width direction and located on a second end edge side opposite to the first end edge as a base point. At least a part of the flap adhesive portion and the flap release sheet is disposed on the second end edge side of the second fold. In a third folded state after being folded with the second fold line as a base point, a flap fixing portion for joining the packaging sheet and the flap peeling sheet is provided in a region where the packaging sheet and the flap peeling sheet face each other. In the third folded state, the body fixing portion and the flap fixing portion overlap in a thickness direction.

In a conventional package of an absorbent article, a main body release sheet and a package sheet are disposed on a non-skin-facing surface side of the absorbent article. When the body adhesive section is peeled off from the body release sheet during the unfolding of the absorbent article package, the vicinity of the distal end portion of the package sheet such as the label tape is grasped, and the package sheet is pulled in the unfolding direction with respect to the absorbent article. However, the main body adhesive portion of the absorbent article is not in contact with the package sheet but in contact with the main body release sheet. Therefore, even if the package sheet is pulled in the unfolding direction with respect to the absorbent article during unfolding of the package, a force in the unfolding direction is not appropriately applied to the main body release sheet, and it is sometimes difficult to peel the main body release sheet from the main body bonding portion or to peel the flap release sheet from the flap bonding portion. Therefore, the package of the present embodiment is configured such that the body release sheet can be easily peeled from the body adhesive portion and the flap release sheet can be easily peeled from the flap adhesive portion when the package is unfolded.

According to this aspect, when the package is unfolded from the third folded state to the second folded state, since the body fixing portion and the flap fixing portion are overlapped in the thickness direction, a force is transmitted from the package sheet to the body release sheet and the absorbent article via the body fixing portion, the package can be unfolded with the second fold line as a reference point, and the flap release sheet can be pulled in a direction away from the flap adhesive portion via the flap fixing portion. Therefore, the body release sheet can be easily peeled off from the body adhesive section, and the flap release sheet can be easily peeled off from the flap adhesive section.

According to a preferred aspect, the body fixing portion and the flap fixing portion may be disposed on the first fold line side with respect to the center in the front-rear direction of the second fold line and the first fold line in a state where the package is folded with the first fold line and the second fold line as the base point.

According to this aspect, when the package is unfolded with the second fold line as a reference point, the body fixing portion and the flap fixing portion are separated from the second fold line serving as the rotation axis, and therefore, the first fold line side can be easily moved in the rotation direction about the second fold line side by pulling the package sheet.

According to a preferred aspect, the pair of flap portions may be provided on both sides of the body portion in the width direction, the flap adhesive portions may be provided on the pair of flap portions, respectively, the flap portions may be separated from each other in a state of being folded to the skin-facing surface side of the body portion, the flap release sheet may cover the pair of flap adhesive portions, and the flap fixing portion may overlap with a region between the pair of flap adhesive portions in the thickness direction.

When the user pulls the packaging sheet while the package is being unfolded with the second fold line as a base point, the flap release sheet moves away from the flap adhesive portion. At this time, since the flap adhesive portion and the flap fixing portion do not overlap, the region of the flap release sheet contacting the flap fixing portion moves first, and the region of the flap release sheet contacting the flap adhesive portion moves following. The tip end of each fin portion stands up from the root portion of each fin, and is disposed so as to surround a substantially triangular space by the pair of fin portions and the main body portion.

In a state where the flap portions and the absorbent article are arranged so as to form a triangle, the center in the width direction of the flap release sheet (the portion overlapping the flap fixing portion) is pulled toward the wrapping sheet side, and the flap release sheet is bent. At this time, the tab releasing sheet is pulled together with the packaging sheet to maintain a flat state. As a result, the outer edge of the flap adhesive portion in a state where the flap portion is folded to the main body portion starts to peel off from the flap release sheet. The flap release sheet gradually separates from the flap adhesive portion, and the flap release sheet can be easily peeled off from the flap adhesive portion.

According to a preferred aspect, the length of the flap fixing portion in the width direction may be longer than the length of the body fixing portion in the width direction.

According to this aspect, when the package is unfolded with the second fold line as a base point, the flap release sheet can be pulled in the peeling direction over a wide range in the width direction via the flap fixing portion. Therefore, the flap release sheet can be easily peeled off from the flap adhesive portion.

According to a preferred aspect, the length of the flap fixing portion in the width direction may be shorter than the length of the body fixing portion in the width direction.

According to this aspect, when the tip end of each fin is deformed so as to rise with respect to the root portion of each fin, the tip end of each fin is pulled further toward the center side in the width direction of the main body, and the rising angle of the fin can be increased. Therefore, the flap release sheet can be more easily released from the flap adhesive portion.

According to a preferred aspect, the flap fixing portion may be disposed apart from the flap adhesion portion in the width direction in a region between the pair of flap adhesion portions.

According to this aspect, the rising angle of the flap can be further increased, and the flap release sheet can be easily released from the flap adhesive portion.

According to a preferred aspect, the flap adhesive portion may include a first flap adhesive portion and a second flap adhesive portion, the second flap adhesive portion may be located more inward in the width direction than the first flap adhesive portion in an unfolded state of the absorbent article, and an edge of the first flap adhesive portion on the second end edge side may be disposed on the second end edge side than an edge of the second flap adhesive portion on the second end edge side.

According to this aspect, the edge on the second end edge side of the flap adhesive portion is the side that is away from the second fold line serving as the development start point when the package is developed with the second fold line serving as the start point. The second flap bonding portion located on the root side of the flap portion extends to a side farther from the deployment origin than the first flap bonding portion located on the tip side of the flap portion. Therefore, when the tip end of each fin is deformed so as to rise with respect to the root portion of each fin, the tip end side of the fin tends to rise earlier than the root portion side of the fin portion. The rising angle of the flap part can be increased, and the outer edge of the flap adhesive part and the flap release sheet can be gradually peeled off, so that the flap release sheet can be more easily peeled off from the flap adhesive part.

According to a preferred aspect, the body fixing portion may include a first body fixing portion disposed in a first region closer to the first end edge than the first fold.

According to this aspect, since the package sheet and the body release sheet are joined to each other at the first body fixing portion in the first region on the first end edge side with respect to the first fold line, the absorbent article can be more easily unfolded via the package sheet and the body release sheet when the package sheet is pulled so as to be unfolded with the second fold line as a base point.

According to a preferred aspect, the body fixing portion may include the first body fixing portion and a second body fixing portion, and the second body fixing portion may be disposed in a second region between the first fold and the second fold in the unfolded state of the package.

According to this aspect, the package sheet and the main body release sheet are joined by the main body fixing portion in both the first region and the second region. When a force is applied to the first fold side through the packaging sheet so as to unfold the second fold with the second fold as a base point, the force can be applied to both sides sandwiching the first fold, and the absorbent article can be unfolded more easily through the packaging sheet and the main body release sheet.

According to a preferred aspect, the first body fixing portion and the second body fixing portion may be overlapped in the thickness direction in the third folded state.

According to this aspect, when a force is applied to both sides sandwiching the first fold by the first body fixing portion and the second body fixing portion, the force is easily transmitted, and the absorbent article can be more easily unfolded via the package sheet and the body release sheet.

In a conventional package of an absorbent article, a wrapping sheet is pulled in an unfolding direction via the vicinity of a leading end portion of the package such as a label tape, and a flap-separating sheet is pulled together with the wrapping sheet while the absorbent article is unfolded. However, since the flap release sheet is in contact with the flap adhesive portion, the flap portion is easily deformed so as to follow the flap release sheet via the flap adhesive portion. When the fin portion follows the fin detached piece, the tip end of the fin portion rises with respect to the root portion of the fin portion. If the flap release sheet is pulled together with the package sheet in this state, shear stress is generated by the flap adhesive portion when the flap release sheet slides in the width direction with respect to the flap portion. Therefore, it is sometimes difficult to peel the flap release sheet from the flap adhesive portion. Therefore, the package of the present embodiment is configured such that the flap release sheet can be easily peeled off from the flap adhesive portion.

According to this aspect, when a force is applied to the first fold line via the packaging sheet when the package is unfolded with the second fold line as a base point, the region of the package on the first fold line side relative to the second fold line moves in the rotational direction relative to the region on the second end edge side relative to the second fold line about the second fold line, and the flap separation sheet moves in the rotational direction together with the packaging sheet along with this movement. In this case, the region closer to the second end edge than the second fold line is easily bent in the width direction by the deformation base point extending in the front-rear direction by the second side low-basis-weight region. Therefore, when the flap portion is pulled via the flap release sheet and the flap adhesive portion, the base portion of the flap portion moves inward in the width direction. The flap peeling sheet is pulled in the unfolding direction together with the packaging sheet to maintain a flat state. On the other hand, as the base portion of the flap portion moves inward in the width direction, the angle at which the flap portion rises from the skin-facing surface side of the absorbent article increases. Therefore, the flap release sheet can be easily separated from the flap portion in the unfolding direction, and the outer edge of the flap adhesive portion can be easily peeled off from the flap release sheet, so that the flap release sheet can be easily peeled off from the flap adhesive portion.

According to a preferred aspect, the low basis weight portion may have front and rear low basis weight regions parallel to the front and rear direction, and the front and rear low basis weight regions may not be provided in a region closer to the first end edge than the first fold in the expanded state.

According to this aspect, when the sheet is spread with the second fold line as a base point, the region on the first fold line side with respect to the second fold line is moved in the rotational direction with respect to the region on the second end edge side with respect to the second fold line. In this case, the region between the first fold and the flap fixing portion is less likely to deform inward in the width direction, and the region closer to the second edge than the second fold is relatively more likely to deform inward in the width direction. Therefore, when the flap portion is pulled via the flap release sheet and the flap adhesive portion, the base portion of the flap portion moves inward in the width direction, and the rising angle of the flap portion is likely to increase.

According to a preferred aspect, the front and rear low basis weight regions may not be provided in a region between the first fold and the second fold in the expanded state.

According to this aspect, when the sheet is developed with the second fold line as the base point, the region closer to the first edge than the second fold line is less likely to be deformed, and the region closer to the second edge than the second fold line is relatively likely to be deformed inward in the width direction. Therefore, when the flap portion is pulled via the flap release sheet and the flap adhesive portion, the base portion of the flap portion moves inward in the width direction, and the rising angle of the flap portion is likely to increase.

According to a preferred aspect, the second side low basis weight region and the flap fixing portion may be disposed on the first fold line side with respect to the center in the front-rear direction of the second fold line and the first fold line in the third folded state.

According to this aspect, since the flap fixing portion is separated from the second fold line which becomes the rotation axis when the cover sheet is unfolded from the second fold line as the base point, the flap releasing sheet can be easily moved in the unfolding direction by pulling the cover sheet at the time of the unfolding. In this case, since the deformation origin point generated in the second side low basis weight region is provided on the first fold line side, the rising angle of the flap portion can be further increased on the first fold line side.

According to a preferred aspect, the low basis weight portion may have a first side low basis weight region disposed on the first end edge side than the first fold line in the expanded state, and a region between the first fold line and the flap fixing portion in the expanded state of the first side low basis weight region may extend outward in the width direction toward the first fold line side.

According to this aspect, a deformation base point extending outward in the width direction toward the first fold side is formed in the region between the first fold and the tab fixing portion. When viewed in a cross section in the thickness direction, the absorbent core on the side of the flap release sheet relative to the flap fixing portion forms a deformation origin extending outward in the width direction from the flap fixing portion toward the first fold line by the deformation origin generated in the first low basis weight region. Therefore, when the flap release sheet is pulled by the wrapping sheet, the flap release sheet also forms a deformation base point extending outward in the width direction from the flap fixing portion toward the first fold line. The flap release sheet is deformed so as to be separated from the flap adhesive portion, and the flap release sheet can be easily peeled off from the flap adhesive portion.

According to a preferred aspect, the package of the absorbent article may include a body release sheet that covers the body adhesive portion and is joined to the package sheet via a body fixing portion, the body fixing portion being disposed in a region closer to the first end edge than the first fold line in the expanded state, the low-basis-weight portion may include an intermediate low-basis-weight region, and the intermediate low-basis-weight region may be located in a region between the first fold line and the second fold line in the expanded state.

According to this aspect, the force applied to the package sheet is transmitted to the body peeling sheet via the body fixing portion. The main body release sheet is in contact with the main body adhesive portion of the absorbent article, and easily transmits force to the absorbent article. Therefore, in the third folded state, when the user applies a force to the first fold via the package sheet, the force is transmitted to the main body release sheet via the main body fixing portion, and the first fold side of the main body portion is easily moved in the rotational direction about the second fold. When the first fold side of the main body is moved in the rotational direction about the second fold from the third folded state, the absorbent core in the region between the first fold and the second fold deforms from the intermediate low basis weight region. The flap release sheet can be easily peeled off from the flap adhesive portion by deforming the absorbent core in the region between the first fold and the second fold so as to be separated from the flap adhesive portion.

According to a preferred aspect, a region of the second side low-basis-weight region on the second edge side of the flap fixing portion in the deployed state may extend in the width direction.

According to this aspect, the second side low-area-weight region extends in the width direction in a region closer to the second edge than the blade fixing portion, whereby the second side low-area-weight region can absorb the twist. Even when the wrapping sheet cannot be pulled substantially perpendicularly with respect to the second end edge of the absorbent article, the second-side low-basis-weight region can absorb the twist, and the flap release sheet can be pulled substantially perpendicularly with respect to the flap bonded portion. Therefore, the flap release sheet can be easily peeled off from the flap adhesive portion.

According to a preferred aspect, a region between the flap fixing portion and the first fold in the unfolded state of the second side low basis weight region may extend in the width direction.

According to this aspect, the region between the flap fixing portion and the first fold is more likely to apply a force in the unfolding direction in the fourth unfolding process. By providing the second side low basis weight region in the region between the flap fixing portion and the first fold in the deployed state, the effect of absorbing the twist of the main body portion can be more easily obtained.

According to a preferred aspect, the second side low basis weight region may reach the outer edge of the absorbent core.

According to this aspect, the region on the second edge side of the absorbent article and the region overlapping the flap fixing portions can be divided by the second-side low basis weight region, and the effect of absorbing twisting of the main body portion can be more easily obtained.

When a conventional absorbent article package is unfolded, the package sheet is pulled in the unfolding direction by holding the vicinity of the leading end of the package such as a label tape, and the flap separation sheet is pulled together with the package sheet while the absorbent article is unfolded. However, since the flap release sheet is in contact with the flap adhesive portion, the flap portion is easily deformed so as to follow the flap release sheet via the flap adhesive portion. If the flap portion follows the flap release sheet, the flap portion is twisted, the flap adhesive portion is inadvertently adhered, and the flap adhesive portion may not be properly used when the absorbent article is used. Therefore, the package of the present embodiment is configured such that: in the package of the absorbent article in which the flap release sheet is pulled together with the package sheet and the flap release sheet is released from the flap adhesive section, the problem that the flap adhesive section is inadvertently bonded can be suppressed. More specifically, the present invention is configured to: the body release sheet can be easily peeled off from the body adhesive part, and thus the problem of inadvertent adhesion of the flap adhesive part can be suppressed.

According to this aspect, since the outer edge which becomes the rising apex of the folded-over portion is positioned further outward in the width direction than the absorbent core, when the flap portion is to be moved inward in the width direction during the unfolding from the third folded state, the rising apex of the folded-over portion easily comes into contact with the inner surface of the flap portion in the state in which the flap portion is folded. The wearer can be pressed outward in the width direction by the rising apex of the folded portion. Therefore, even if the flap portion is pulled together with the flap release sheet, the movement of the flap portion to the inside in the width direction can be restricted. It is possible to suppress twisting of the flap parts and to suppress the problem of the flap adhesion portions sticking to each other or the flap adhesion portions sticking to unintended areas.

According to a preferred aspect, the inner edge of the first base point portion may be disposed on the outer side in the width direction than the absorbent core in the flap region.

According to this aspect, since the inner edge of the first origin point portion serving as the fulcrum of the entire contracted portion is located on the outer side in the width direction than the absorbent core, when the flap portion is moved to the inner side in the width direction, the contracted portion easily contacts the inner surface of the flap portion in the first folded state, and the flap portion can be pressed outward in the width direction.

According to a preferred aspect, the base point portion may have a second base point portion located more outward in the front-rear direction than the contracted portion, and an inner edge of the second base point portion may be disposed in a region overlapping the absorbent core.

According to this aspect, the second base point portion is overlapped with the absorbent core having relatively high rigidity, whereby the contracted portion is more easily raised.

According to a preferred aspect, the flap adhesive portion may be separated in the width direction from a flap fold that folds the flap portion toward the skin-facing surface side of the main body portion.

Wrinkles and distortion are likely to occur in the vicinity of the flap fold due to bending of the flap portion. According to this aspect, it is possible to suppress the fin adhesive portion from being inadvertently bonded due to wrinkles or the like caused by bending of the fin portion.

According to a preferred aspect, the flap fixing portion may overlap with a region between the pair of flap adhesive portions in the thickness direction and be separated from the flap adhesive portions.

According to this aspect, in the third folded state, when the user pulls the package sheet, the flap release sheet moves in the thickness direction in the unfolding direction away from the flap adhesive portion. In this case, since the flap adhesion portion is separated from the flap fixing portion in the width direction, it is difficult to move in the unfolding direction together with the flap fixing portion, and the flat state is easily maintained. Therefore, the flap release sheet is easily peeled off from the flap adhesive part, and the problem that the flap adhesive parts stick to each other or the flap adhesive part sticks to an unintended area can be suppressed.

According to a preferred aspect, the base point portion may have a second base point portion located on the outer side in the front-rear direction than the constricted portion, and a leakage-proof joint portion that joins the folded portion and the projecting portion may be provided in a region of the leakage-proof hem that overlaps the second base point portion, the leakage-proof joint portion being located on the outer side in the width direction than the leakage-proof joint portion, and the folded portion may overlap the projecting portion without joining the folded portion and the projecting portion, and the leakage-proof non-joint portion reaching an outer edge of the folded portion.

According to this aspect, the outer edge of the folded portion does not engage with the protruding portion, but stands up with respect to the protruding portion. The flap portion is more easily raised outward in the width direction and toward the wearer side, and can press the flap portion outward in the width direction and restrict movement of the flap portion inward in the width direction.

According to a preferred aspect, the outer edge of the leakage preventing joint may be disposed further outward in the width direction than the outer edge of the absorbent core.

The rising fulcrum of the folded portion in the region overlapping the second base point portion in the thickness direction serves as an outer edge of the leak-proof joint portion. Since the rising fulcrum of the folded portion is located on the outer side in the width direction than the absorbent core, when the flap portion is moved to the inner side in the width direction, the contraction portion easily touches the inner surface in the width direction of the flap portion, and the flap portion can be pressed toward the outer side in the width direction.

According to a preferred aspect, the leakage preventing elastic member may be disposed further outward in the width direction than the flap release sheet in the first folded state.

The region on the outer side in the width direction of the flap release sheet is not covered with the flap release sheet, and is low in rigidity and easily deformed. By providing the leak-proof elastic member of the folded portion in this region, the movement of the flap portion inward in the width direction in the region with relatively low rigidity can be suppressed.

According to a preferred aspect, in the unfolded state of the package, the area of the flap adhesive portion in a region inside the width direction center of the flap portion may be larger than the area of the flap adhesive portion in a region outside the width direction center of the flap portion.

The region inside the width direction center of the flap portion is closer to the flap fold, and wrinkles and twists are likely to occur due to the folding of the flap portion. By increasing the area of the flap adhesion portion in the region inside the width direction center of the flap portion, wrinkles and twists in the vicinity of the flap fold can be suppressed, and wrinkles and the like can be suppressed from occurring in the flap adhesion portion.

According to a preferred aspect, the absorbent core may be provided with a low basis weight portion having a lower basis weight of the absorbent material than that of the surrounding portion in the flap region.

According to this aspect, the absorbent core in the flap region is easily bent from the low basis weight portion. Therefore, when the flap separation sheet is pulled so as to be separated from the flap adhesive portion, the flap separation sheet is moved in the unfolding direction while the base portion of the flap section is moved inward in the width direction. In this case, the tab portion is pressed outward in the width direction by the contraction portion, and the tab bonded portion is easily maintained in a flat state. The occurrence of wrinkles and the like in the flap adhesion portion can be suppressed.

According to a preferred aspect, the low basis weight portion may overlap with a region between the pair of flap adhesion portions in the thickness direction.

The absorbent core in the tab region is easily bent between the pair of tab bonded portions with the low basis weight portion as a base point. Therefore, when the flap adhesive portion is pulled via the flap release sheet, the flap portion is more easily raised. In this case, the tab portion is pressed outward in the width direction by the contraction portion, and the tab bonded portion is easily maintained in a flat state. Therefore, the flap adhesive portion can be peeled off from the flap release sheet by moving the flap release sheet in the unfolding direction while suppressing the occurrence of wrinkles and the like in the flap adhesive portion.

According to a preferred aspect, the absorbent article may include a main body adhesive part disposed on a non-skin-facing surface side of the main body part and having an adhesive for fixing the main body part to underwear, and the low basis weight part may be provided in a region not overlapping with the main body adhesive part and the flap adhesive part in an unfolded state of the package.

According to this aspect, the region not overlapping the main body bonded portion and the flap bonded portion is a region that is not joined to underwear and is easily deformed when worn. By providing the low basis weight portion in this region, the absorbent core is more easily deformed from the low basis weight portion, and the flap portion is more easily raised. The flap bonding portion can be easily separated from the flap release sheet in the unfolding direction, and the flap bonding portion can be separated from the flap release sheet while suppressing twisting of the flap portion.

(2) Absorbent article of embodiment

Hereinafter, an absorbent article according to a first embodiment will be described with reference to the drawings. The absorbent article may be an absorbent article such as a sanitary napkin, panty liner, incontinence pad, faecal pad or the like. The absorbent article may be used by being placed inside a wearing article such as underwear. The absorbent article 1 of the present embodiment is a sanitary napkin for night use, and the length of the absorbent article 1 in the front-rear direction is 285mm or more.

In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the ratio of the respective dimensions and the like sometimes differ from the actual case. Therefore, specific dimensions and the like should be determined with reference to the following description. In addition, the drawings may include portions having different dimensional relationships and ratios from each other.

Fig. 1 is a plan view of the package in an unfolded state as viewed from the skin-facing surface side. Fig. 2 is a plan view of the package in an unfolded state as viewed from the non-skin-facing side. The plan views shown in fig. 1 and 2 are plan views in the expanded state. The unfolded state is a state in which the absorbent article and the wrapping sheet are not folded, and the absorbent article is stretched to a state in which no wrinkle due to a leakage-proof hem or the like is formed. Here, the "skin-facing surface side" corresponds to a side facing the skin of the wearer during use. The "non-skin-facing surface side" corresponds to a side facing in a direction opposite to the skin of the wearer during use.

The absorbent article package 110 (hereinafter referred to as a package) includes an absorbent article 1 and a package sheet 100 that individually packages the absorbent article. The package body 110 has a first end edge and a second end edge which are outer end edges in the front-rear direction of the package body 110. The first end edge is an end edge located inside the package in a packaged state in which the package is individually packaged as shown in fig. 11 and the like, and the second end edge is an end edge located outside the package in the packaged state. The inside of the package means the inside in the thickness direction of the packaged package 110 in a packaged state. The first edge of the present embodiment is the rear edge 110R, and the second edge is the front edge 110F. In other embodiments, the first edge may be the rear edge 110R and the second edge may be the front edge 110F. The front end edge 110F of the package body 110 may be constituted by the front end edge 100F of the package sheet 100, or may be constituted by the front end edge 1F of the absorbent article 1. Similarly, the rear end edge 110R of the package body 110 may be constituted by the rear end edge 100R of the package sheet 100 or may be constituted by the rear end edge 1R of the absorbent article 1. The front end edge 110F of the package body 110 of the present embodiment is constituted by the front end edge 100F of the package sheet 100, and the rear end edge 110R of the package body 110 is constituted by the rear end edge 1R of the absorbent article 1.

The absorbent article 1 has a front-back direction L and a width direction W. The front-back direction L is a direction extending from the front side (abdomen side) to the back side (back side) of the wearer or a direction extending from the back side to the front side of the wearer. The width direction W is a direction orthogonal to the front-rear direction L. The absorbent article has a thickness direction T extending toward the skin facing surface side T1 and the non-skin facing surface side T2.

The absorbent article 1 has a central region S3, a front region S1, and a back region S2. The central region S3 is a region having an excretory opening abutment portion that abuts against an excretory opening (e.g., vaginal opening) of the wearer. When the absorbent article is worn on underwear, the central region S3 is located in the crotch portion of the underwear. That is, the central region is a region disposed in the crotch of the wearer, i.e., between the legs of the wearer. The central region S3 may be on the front side of the absorbent article. More specifically, the center of the central region S3 in the front-rear direction L may be located forward of the center of the absorbent article 1 in the front-rear direction L.

The front region S1 is located more forward than the center region S3. The front end edge of the front side region S1 defines the front end edge of the absorbent article 1. The rear region S2 is located more rearward than the central region S3. The rear end edge of the rear region S2 defines the rear end edge of the absorbent article 1. The length in the front-rear direction L of the rear region S2 may be longer than the length in the front-rear direction L of the central region S3.

The absorbent article 1 has a main body 2 and a flap portion 5. The main body 2 has at least an absorbent core 31, a front sheet 10, and a back sheet 20, and is vertically long. The fin portion 5 protrudes outward in the width direction of the main body 2. The flap 5 may extend outward in the width direction W from the outer edge of the absorbent core 31 in the central region S3. In the present embodiment, the outer edge is an outer edge in the width direction, and the inner edge is an inner edge in the width direction. The fin portion 5 may be constituted by the fin portion 3 and the hip fin 4. In the present embodiment, the fin 3 may be provided in the central region S3, and the hip flap 4 may be provided in the rear region S2. The flap portion 5 of the present invention is located on the front side of the second fold FL2 described later, and is configured to be able to be unfolded when the package body 110 is unfolded using the second fold FL2 as a base point. The fin portion 5 of the present embodiment is constituted by the fin portion 3. In another embodiment, when the hip flap 4 is positioned on the front side of the second fold FL2, the hip flap 4 may constitute the flap portion of the present invention.

The fin portions 3 are provided in a pair on both sides in the width direction of the main body portion 2, and the hip flaps 4 are also provided in a pair on both sides in the width direction of the main body portion 2. The fin 3 and the hip panel 4 may be formed by laminating a side sheet 15 and a back sheet 20, which will be described later. The fin 3 is configured to be foldable toward the back sheet 20. The fin 3 is folded back to the non-skin-facing surface side of the crotch of the underwear when in use.

The hip flap 4 is located on the rear side of the wing 3 and is provided in the rear region S2. The hip flaps 4 are not folded in use and are disposed between the underwear and the hips of the wearer. In the present embodiment, no absorbent material is provided on the hip flaps 4. Instead of this, an absorbent material may be provided on the hip flaps 4.

The leading edge of the fin portion 3 is defined by the root of the fin portion 3 and corresponds to the portion located on the front side of the two portions recessed most inward in the width direction W. The front edge of the wing 3 may define the boundary between the central region S3 and the front region S1. The rear end edge of the fin portion 3 is defined by the root of the fin portion 3 and corresponds to a portion located on the rear side of the two portions recessed most inward in the width direction W. The rear end edge of the fin portion 3 may be located between the central region S3 and the rear region S2. Here, a region between the front end edge of the fin portion 3 and the rear end edge of the fin portion 3 in the front-rear direction L is referred to as a "fin region". Since the flap region of the present embodiment coincides with the central region, the central region S3 will be described below.

The absorbent article 1 is configured to be individually packaged by the packaging sheet 100. In the package body 110, the flap portion 5 is folded to the skin-facing surface side T1 of the main body portion 2 with the flap fold FL5 as a base point in an unfolded state in which the absorbent article 1 is placed on the package sheet 100. Fig. 3 is a plan view of the package 110 viewed from the skin-facing surface side in a first folded state in which the flap portion 5 is folded to the skin-facing surface side of the main body. Fig. 4 is a plan view of the package 110 in the first folded state, as viewed from the non-skin-facing surface side. The boundary between the body 2 and the fin portion 5 may be the fin fold FL5 or the root of the fin portion 5 (root base of the fin portion). The flap fold FL5 extends in the front-rear direction L, and may be parallel to the front-rear direction L.

The package 110 is folded inward of the package 110 with the first fold FL1 extending in the width direction W as a base point in a first folded state in which the fin portion 3 is folded toward the skin-facing surface side T1 of the main body portion 2. The package 110 is folded inward of the package with the second fold FL2 as a base point in a second folded state in which the package is folded by the first fold FL 1. The second fold FL2 is located on the front end edge 110F side as the second end edge than the first fold FL 1.

In the third folded state after being folded by the second fold FL2, the package 110 of the present embodiment is folded inward of the package with the third fold FL3 extending in the width direction W as a base point. The third fold FL3 is located on the front end edge 110F side as the second end edge than the second fold FL 2. In a fourth folded state after being folded by the third fold FL3, the front end edge 100F of the packaging sheet 100 is fixed to the outer surface of the packaging sheet 100 by the label tape 102. In this way, the absorbent article 1 is individually packaged in the packaging sheet 100 (see fig. 11). The inner surface 100T of the packaging sheet 100 is a surface located on the absorbent article 1 side in the unfolded state, and the outer surface 100B of the packaging sheet 100 is a surface located on the opposite side of the absorbent article 1 in the unfolded state. As shown in fig. 1, the absorbent article 1 of the present embodiment has, in the unfolded state, a first region R11 between the first fold FL1 and the rear end edge 1R of the absorbent article 1, a second region R12 between the first fold FL1 and the second fold FL2, a third region between the second fold FL2 and the third fold FL3, and a fourth region R14 between the third fold FL3 and the front end edge 1F of the absorbent article 1. In another embodiment, the package body 110 may not be folded with the third fold FL3 as a base point.

Fig. 5 is a sectional view taken along line 1A-1A shown in fig. 1. The absorbent article 1 includes: a surface sheet 10, the surface sheet 10 facing the skin of the wearer; a back sheet 20, the back sheet 20 facing a side opposite to the wearer's skin; and an absorbent core 31, wherein the absorbent core 31 is disposed between the front sheet 10 and the back sheet 20. The topsheet 10 faces the skin of the wearer during use. The back sheet 20 faces the side opposite to the wearer's skin during use. The absorbent core 31 includes an absorbent material that absorbs body fluid, and extends in the front-rear direction L of the absorbent article.

The topsheet 10 is made of any sheet-like material having a structure permeable to liquid, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, or a mesh sheet. As a material of the woven fabric or the nonwoven fabric, any of natural fibers and chemical fibers can be used.

The back sheet 20 is a liquid impermeable sheet. As the back sheet 20, a laminated nonwoven fabric mainly composed of a polyethylene sheet, polypropylene, or the like, a breathable resin film, a sheet in which a breathable resin film is bonded to a nonwoven fabric such as spunbond or spunlace, or the like can be used.

Figure 6 is a top view of an absorbent core. The absorbent core 31 is disposed at least in the central region S3 and the rear region S2. In addition, the absorbent core may extend from the central region S3 to the front region S1. The absorbent core 31 may be composed of a liquid-absorbent material. The absorbent core 31 may be wrapped by a core wrap (not shown). The core wrap may cover the absorbent core 31 at least at a position closer to the skin-facing surface side than the absorbent core 31. As a specific example, the core wrap layer may have a sheet disposed on the skin-facing surface side with respect to the absorbent core 31 and a sheet disposed on the non-skin-facing surface side with respect to the absorbent core 31.

The absorbent material constituting the absorbent core 31 can be formed of, for example, hydrophilic fibers, pulp, and Super Absorbent Polymer (SAP). The core wrap layer can be formed of, for example, nonwoven fabric or a tissue sheet. The sheet on the skin-facing surface side and the sheet on the non-skin-facing surface side constituting the core wrap may be formed of the same sheet. As a modification, the absorbent core 31 may not be covered with the core-clad layer. In this case, the absorbent core 31 may be covered with the front sheet 10 and the back sheet 20.

The absorbent core 31 may have a plurality of regions differing in weight per unit area. Fig. 6 is a plan view of the skin-facing surface side T1 of the absorbent core 31. The absorbent core 31 may have at least a high basis weight portion 33, a low basis weight portion 34, and a medium basis weight portion 35. The absorbent material (pulp) in the high basis weight portion 33 has a higher basis weight than the absorbent material in the medium basis weight portion 35, and the absorbent material (pulp) in the medium basis weight portion 35 has a higher basis weight than the absorbent material (pulp) in the low basis weight portion 34. The high basis weight portion 33 is thicker than the surrounding absorbent core 31 and constitutes a middle high portion 36. The high unit area weight portion 33 includes a first high unit area weight portion 331 and a second high unit area weight portion 332 disposed at a distance in the front-rear direction. The second high unit area weight portion 332 is located on the rear side of the first high unit area weight portion 331. The first low basis weight portion 341 may be disposed between the first high basis weight portion 331 and the second high basis weight portion 332 in the front-rear direction L.

The high basis weight portion 33 may be disposed at the center of the absorbent core 31 in the width direction W. The outer edge of the high basis weight portion 33 may be positioned inward in the width direction W from the outer edge 31E of the absorbent core 31. At least a part of the high basis weight portions (the first high basis weight portion 331 and the second high basis weight portion 332)33 may be disposed in the central region S3. The high basis weight portion 33 may extend in the front-rear direction L beyond the central region S3. The center of the high basis weight portion 33 in the front-rear direction L may be located forward of the center of the absorbent article 1 in the front-rear direction L, or may be located forward of the center of the central region S3 in the front-rear direction L. The center of the high basis weight portion 33 in the front-rear direction L is the center of the front end edge of the first high basis weight portion 331 and the rear end edge of the second high basis weight portion 332 in the front-rear direction.

As shown in fig. 5, a plurality of through holes 38 may be formed in the high basis weight portion 33 to penetrate in the thickness direction T from the skin-facing surface of the absorbent article 1 to the non-skin-facing surface of the absorbent core 31. The through-hole 38 may be formed in plural at intervals in a plan view. By forming the through holes 38 in the high basis weight portion 33, even when a large amount of body fluid such as menstrual blood or urine is excreted at a time, the body fluid can be introduced into the absorbent core 31 and hardly spills out. The absorbent article can maintain the dryness of the skin-facing surface of the absorbent article and effectively maintain good fit feeling and wearing feeling.

The through-hole 38 may be provided at a position rearward of the high basis weight portion 33, and may be provided in the second low basis weight portion 342 of the rear region S2. It is easier to introduce the body fluid flowing along the skin according to the direction of gravity in the lying position to the absorbent body side.

Intermediate basis weight portions 35 having a lower basis weight than the high basis weight portion 33 and a higher basis weight than the low basis weight portion 34 are disposed between the outer edge 33E of the high basis weight portion 33 and the outer edge 31E of the absorbent core 31 and between the front edge of the high basis weight portion 33 and the front edge of the absorbent core 31. The unit area weight portion 35 is a region disposed at the outer edge and the front end edge of the absorbent core 31 among regions having different unit area weights. In addition, the configuration in which the regions having different weights per unit area are provided at the outer edge 31E of the absorbent core 31 is the region having the highest ratio occupied at the outer edge 31E, and the configuration in which the regions having different weights per unit area are provided at the front edge of the absorbent core 31 is the region having the highest ratio occupied at the front edge. In the present embodiment, the basis weight of the unit area weight part 35 is 300g/m²The portions other than the low basis weight portion 34 and the high basis weight portion 33 are disposed over the entire region of the outer edge 31E of the absorbent core 31 in the front-rear direction L and over the entire region of the front edge of the absorbent core 31 in the width direction.

The low area weight portion 34 may have at least: a first low basis weight portion 341; a pair of second low-area-unit-weight portions 342, the pair of second low-area-unit-weight portions 342 being located on the rear side of the first low-area-unit-weight portions 341; a pair of third low-basis-weight sections 343, the pair of third low-basis-weight sections 343 being located on the rear side of the second low-basis-weight section; and front and rear low basis weight portions 345. The low basis weight portion 34 has a lower basis weight than the medium basis weight portion 35, and has a lower rigidity. Therefore, the low basis weight portion is most easily deformed when a force is applied to the absorbent core 31. Therefore, the low basis weight portion 34 deforms to absorb the force, or the low basis weight portion 34 serves as a deformation base point of the absorbent core 31.

The low basis weight portion 34 may have a basis weight of 150g/m²Hereinafter, the weight per unit area of the low weight part of the present embodiment is 100g/m². The low basis weight portion 34 may be less than 50%, more preferably less than 35% of the basis weight of the absorbent core 31 adjacent to the low basis weight portion 34. By increasing the difference in the weight per unit area between the low weight portion 34 and the periphery thereof, when a force is applied to the absorbent core 31, the force can be locally concentrated in the low weight portion 34. As a result, the low basis weight portion deforms as described later, and the absorbent core 31 can be further fitted to the body.

The low basis weight portion 34, the medium basis weight portion 35, and the high basis weight portion 33 can be defined as follows. The area having the highest proportion occupied by the outer edge 31E of the absorbent core 31 is defined as the basis weight 35. In a cross section, a portion that is 20% or more thick relative to the thickness of the unit area weight portion 35 and extends in the planar direction is defined as the high unit area weight portion 33. The boundary between the high unit area weight portion 33 and the unit area weight portion 35 defines the center in the thickness direction T of the portion of the unit area weight portion 35 extending in the planar direction and the portion of the high unit area weight portion 33 extending in the planar direction, a portion thicker than the center in the thickness direction T is defined as the high unit area weight portion 33, and a portion thinner than the center in the thickness direction T is defined as the unit area weight portion 35. Similarly, in a cross section, a portion that is 20% or more thinner in thickness than the thickness of the weight-per-unit-area portion 35 and extends in the planar direction is defined as the low weight-per-unit-area portion 34. The boundary between the low basis weight portion 34 and the medium basis weight portion 35 defines the center in the thickness direction of the portion of the medium basis weight portion 35 extending in the planar direction and the portion of the low basis weight portion 34 extending in the planar direction, a portion thicker than the center in the thickness direction T is defined as the medium basis weight portion 35, and a portion thinner than the center in the thickness direction T is defined as the low basis weight portion 34.

The second low basis weight portion 342 is provided on the rear side of the first low basis weight portion 341 apart from the first low basis weight portion 341 in the front-rear direction L. The second low area weight portion 342 may be located more rearward than the central region S3, or may be located more rearward than the rear end edge of the fin portion 3. The second low area weight portion 342 may extend from the outer edge 31E of the absorbent core 31 toward the inside in the width direction W and obliquely with respect to the width direction W.

The third low basis weight portion 343 is provided on the rear side of the second low basis weight portion 342 apart from the second low basis weight portion 342 in the front-rear direction L. The third low basis weight portion 343 may be disposed in the rear region S2. The second low area weight portion 342 may extend from the outer edge 31E of the absorbent core 31 toward the inside in the width direction W and obliquely with respect to the width direction W.

The front and rear low basis weight parts 345 are provided in the rear region S2. The front and rear low basis weight parts 345 may cross the center of the absorbent core 31 in the width direction W. The front-rear low basis weight portion 345 is provided along the front-rear direction at the center of the absorbent core 31 in the width direction W. The front-rear low basis weight part 345 is disposed rearward of the second high basis weight part 332 and rearward of the central region S3. The front and rear low basis weight portions 345 may extend rearward from the rear end edge of the second high basis weight portion 332.

The low basis weight portion 34 has a plurality of low basis weight regions. The low basis weight portion 34 has a second side low basis weight region R41 extending in the front-rear direction at a position closer to the leading edge than the second fold FL 2. The second side low unit area weight region R41 may be disposed in at least one of the third region R13 and the fourth region R14, and is composed of the first low unit area weight parts 341, a part of the second low unit area weight parts 342, and a part of the front and rear low unit area weight parts 345. The second low basis weight portion 342 spans the second fold FL2, and the region overlapping the second fold FL2 and the region closer to the trailing edge than the second fold FL2 do not constitute the second side low basis weight region R41. Similarly, the front and rear low basis weight portions 345 straddle the second fold FL2, and the region overlapping the second fold FL2 and the region closer to the rear edge than the second fold FL2 do not constitute the second side low basis weight region R41. In fig. 6, the second side low area weight regions R41 in the second low area weight parts 342 and the second side low area weight regions R41 based on the front and rear low area weight parts 345 are indicated by hatching. The second side low area weight region R41 may extend slightly in the front-rear direction L, but may not be parallel to the width direction W. Therefore, the entirety of the first low basis weight portion 341 constitutes the second side low basis weight region R41.

At least a part of the second side low area weight region R41 overlaps the tab fixing portion 92 in the third folded state. In the present embodiment, the second side low area weight region R41 of the first low area weight portion 341 overlaps the tab fixing portion 92 in the third folded state. As shown in fig. 12, the second side low area weight region R41 is disposed on the first fold line FL1 side with respect to the center CL12 in the front-rear direction of the second fold line FL2 and the first fold line FL1 in the third folded state. The second side low area weight region R41 extends in the width direction W in a region closer to the leading edge than the blade fixing portion 92 in the deployed state. Specifically, a part of the first low basis weight portion 341 is disposed on the leading edge side of the flap fixing portion 92 and in a region between the flap fixing portion 92 and the first fold FL1 in the packaged state. The second side low area weight region R41 may extend slightly in the width direction, and may not be parallel to the front-rear direction. The second side low area weight region R41 may reach the outer edge of the absorbent core 31. Specifically, the first low area weight portion 341 may reach the outer edge of the absorbent core 31.

The low basis weight portion 34 has a front-rear low basis weight region R42 parallel to the front-rear direction L. The front and rear low basis weight regions R42 are formed by the front and rear low basis weight portions 345. The front and rear low basis weight regions R42 are disposed across the second fold FL 2. The front and rear low basis weight regions R42 are disposed in the second region R12 and the third region R13, and are not disposed in the first region (region on the first end edge side of the first fold line) R11 and the fourth region R14.

The low basis weight portion 34 has a first side low basis weight region R43, which is disposed at the trailing edge side of the first fold FL1 in the expanded state, at the first side low basis weight region R43. The first side low area weight region R43 may be located in the first region R11, and is formed by a part of the third low area weight portion 343. In fig. 6, the first side low basis weight region R43 in the third low basis weight portion 343 is indicated by hatching. The first side low area weight region R43 extends outward in the width direction W from the first fold line FL1 side in the region between the first fold line FL1 and the flap fixing portion 92 in the unfolded state shown in fig. 6. In the present embodiment, the positions of the flap fixing portion 92 and the body fixing portion 91 in the unfolded state correspond to the positions of the flap fixing portion 92 and the body fixing portion 91 in the packaged state when they are unfolded. Fig. 1 and 2 show the positions of the flap fixing portion 92 and the body fixing portion 91 when they are unfolded.

The low basis weight portion 34 has an intermediate low basis weight region R44, which is an intermediate low basis weight region R44 disposed in a region between the first fold FL1 and the second fold FL2 in the deployed state. The intermediate low basis weight region R44 may be located in the second region R12, and is composed of a part of the third low basis weight sections 343, a part of the second low basis weight sections 342, and a part of the front and rear low basis weight sections 345. In fig. 6, the intermediate low area weight region R44 is indicated by diagonal lines.

Next, the pressing portion will be described based on fig. 1. The first pressing portion 81 overlaps at least a part of the first low basis weight portion 341 and extends along the first low basis weight portion 341. The form in which the first squeezing portion 81 extends along the first low basis weight portion 341 includes not only a structure in which the direction in which the first low basis weight portion 341 extends coincides with the direction in which the first squeezing portion 81 extends, but also a structure in which the angle formed by the two directions is less than 5 degrees. In addition, the direction in which the first low basis weight portion 341 extends and the direction in which the first pressing portion 81 extends are lines connecting the width centers of the respective portions in a structure in which the respective portions have a constant width. The first pressing portion 81 may overlap with at least a portion of the first low unit area weight portion 341 and be disposed along the first low unit area weight portion 341. The outer edge of the first compressed portion 81 may be located inward of the outer edge 31E of the absorbent core 31, and the inner edge of the first compressed portion 81 may terminate within the first low basis weight portion 341. The first pressing portion 81 may be located inward in the width direction W than an outer edge 33E (see fig. 6) of the weight unit 33. In the structure having the plurality of high basis weight parts, the outer edge of the high basis weight part located outermost in the width direction is formed.

In addition, the second squeezing portion 82 overlaps at least a portion of the second low basis weight portion 342 and extends along the second low basis weight portion 342. The outer edge of the second compressed portion 82 may be located inward of the outer edge of the absorbent core 31, and the inner edge of the second compressed portion 82 may be located outward of the inner edge of the second low basis weight portion 342 in the width direction W. The third pressing portion 83 overlaps at least a part of the third low basis weight portion 343 and extends along the third low basis weight portion 343. The outer edge 83E of the third compressed portion 83 may be located inward of the outer edge 31E of the absorbent core 31, and the inner edge of the third compressed portion 83 may be located outward of the inner edge of the third low basis weight portion 343 in the width direction W.

A pair of the first pressing portion 81, the second pressing portion 82, and the third pressing portion 83 is provided with a gap in the width direction W. The first squeezing portion 81, the second squeezing portion 82, and the third squeezing portion 83 are line-symmetric with respect to a center line that passes through the center of the absorbent article in the width direction W and extends in the front-rear direction L.

The absorbent article 1 may have a second sheet (not shown) disposed between the topsheet 10 and the absorbent core 31. The second sheet may be a liquid-permeable sheet that is permeable to a liquid such as a body fluid. Preferably, the second sheet has a higher degree of hydrophilicity than the surface sheet 10. The second sheet can be composed of the same material as the surface sheet 10.

The absorbent article 1 may have a side sheet 15 covering the outer edge of the surface sheet 10. The side sheet 15 covers the outer edge of the front sheet 10 in the width direction W and extends outward in the width direction W from the front sheet 10. In the present embodiment, the absorbent article 1 has the side sheet 15, but the absorbent article 1 may not have the side sheet 15. In this case, the topsheet 10 may cover the entire absorbent core. In addition, the outer edge in the present invention is an outer end in the width direction, and the inner edge is an inner end in the width direction.

The side sheet 15 can be composed of the same material as the surface sheet 10. However, in order to prevent the body fluid adhering to the top sheet 10 from passing over the side sheet 15 and leaking out to the outside of the absorbent article 1 in the width direction W, the side sheet 15 is preferably hydrophobic or water-repellent. The side sheets 15 may be disposed at the outer edge of the absorbent core, the wings 3, and the hip flaps 4 in the width direction W.

The absorbent article 1 may have standing leakage-preventing hems 60. The leakage preventive hem 60 is positioned on the skin facing surface side T1 of the top sheet 10, and is configured to be able to stand up toward the skin facing surface side T1 when worn, compared to the top sheet 10. Fig. 7 is a cross-sectional view of the absorbent article 1 in an unfolded state taken along the line 1B-1B shown in fig. 1. Fig. 8 is a cross-sectional view taken along the line 1B-1B in fig. 1 in an erected state of the leakage preventing ruffles 60. Fig. 9 is a sectional view taken along line 1C-1C shown in fig. 1 in an unfolded state. Fig. 10 is a cross-sectional view taken along line 1C-1C shown in fig. 1 in an erected state.

The leakage-preventing ruffles 60 are composed of the side sheets 15 and the leakage-preventing elastic members 61. The leakage preventive hem 60 has: a contracted portion 62, the contracted portion 62 rising by contraction of the leakage-preventing elastic member 61; a first base point portion 63 located on the outer side in the width direction W of the constricted portion 62, the first base point portion 63 serving as a base point from which the constricted portion rises; and a second base point portion 64, the second base point portion 64 being located on the outer side in the front-rear direction L than the constricted portion 62 and serving as a base point from which the constricted portion rises. As shown in fig. 1, the inner edge 64I of the second base point portion 64 is located more inward in the width direction W than the inner edge 63I of the first base point portion 63. The inner edge 63I of the first base point portion 63 is disposed at a position outward of the absorbent core 31 in the width direction W in a region inward of the second base point portion 64 in the front-rear direction L. Further, the region further to the front-rear direction L inner side than the second base point portion 64 includes a central region S3. The inner edge 64I of the second base point portion 64 is arranged in a region overlapping the absorbent core 31. The outer edge 63E of the first base point portion 63 coincides with the outer edge 64E of the second base point portion 64. In another embodiment, the outer edge 63E of the first base point portion 63 may be located outward in the width direction W from the outer edge 64E of the second base point portion 64. In the second base point portion 64, the side sheet 15 and the top sheet 10 are formed by two rows of bonded regions arranged at intervals in the width direction. In this manner, the inner edge of the base point portion constituted by the plurality of rows of bonding regions is the inner edge of the bonding region of the row located innermost in the width direction. The outer edge of the base point portion constituted by the plurality of rows of adhesive regions is the outer edge of the adhesive region of the row located outermost in the width direction.

The side sheets 15 are folded outward in the width direction W at the distal end of the contracted portion 62 and laminated in two layers, and the leakproof elastic member 61 is disposed between the two layers of the side sheets 15. The contraction portion 62 includes a protruding portion 621 extending from the first base point portion 63 to the inside in the width direction W, and a folded portion 622 folded to the outside in the width direction with the inside edge of the protruding portion 621 as a base point. The folded portion 622 has the leakage preventing elastic member 61, and the protruding portion 621 does not have the leakage preventing elastic member 61. The folded portion 622 is configured to be able to rise with respect to the protruding portion 621 in a central area S3 that is a flap area extending in the width direction W from the flap portion 5. The folded portion 622 may be configured to be able to rise at least in the central region S3, and in the present embodiment, may be configured to rise in a region inside the second base point portion 64 in the front-rear direction. The folded portion 622 is disposed on the skin facing surface side T1 of the protruding portion 621. The extension 621 and the folded portion 622 each have two layers of side sheets 15. The rising apex of the leakage preventing hem 60 becomes the outer edge (top end) of the folded portion 622. The inner edge of the flap 622 coincides with the inner edge of the protrusion 621. The outer edge of the flap 622 may also coincide with the outer edge of the protrusion 621. The outer edge of the folded portion 622 is disposed outward in the width direction W from the outer edge of the absorbent core 31 in the unfolded state shown in fig. 7.

As shown in fig. 7 and 8, the folded portion 622 is not joined to the projecting portion 621 in the region located inside the second base point portion 64 in the front-rear direction L. Therefore, in the region located further to the front-rear direction L than the second base point portion 64, the contracted portion 62 rises toward the wearer side from the inner end edge of the first base point portion 63. The rising apex of the leakage preventing hem 60 becomes the outer edge (top end) of the fold over portion.

As shown in fig. 9 and 10, the region overlapping the second base point portion 64 includes a leakage-preventing joint portion 65 and a leakage-preventing non-joint portion 66, the leakage-preventing joint portion 65 joins the folded portion 622 to the projecting portion 621, the leakage-preventing non-joint portion 66 is located on the outer side in the width direction W than the leakage-preventing joint portion 65, and the folded portion 622 and the projecting portion 621 overlap each other without joining the folded portion 622 to the projecting portion 621. The leak-proof joint portion 65 and the leak-proof non-joint portion 66 are provided on the surface of the folded portion 622 facing the projecting portion 621. The leakage-preventing joint portion 65 extends outward in the width direction W from the inner edge of the surface of the folded portion 622 facing the projecting portion 621. The outer edge 65E of the leakage preventing joint 65 is disposed outward in the width direction W from the outer edge 31E of the absorbent core 31. The leakage-proof non-joint portion 66 is provided between the outer edge of the leakage-proof joint portion 65 and the outer edge 622E of the folded portion 622. That is, the leakage-preventing non-joint portion 66 reaches the outer edge 622E of the folded portion 622. Therefore, in the region overlapping the second base point portion 64, the folded portion 622 of the contraction portion 62 rises toward the wearer side from the outer edge of the leakproof joining portion 65.

As shown in fig. 2 and the like, the absorbent article 1 has an adhesive portion 70 provided on the non-skin-facing surface side T2 of the back sheet 20. The adhesive section 70 is a region provided with an adhesive for fixing the absorbent article 1 to a wearing article such as underwear.

The adhesive portion 70 may have a body adhesive portion 71, a fin adhesive portion 72, and a hip flap adhesive portion 73. The fin adhesion portion 72 constitutes a fin adhesion portion of the present invention. The main body adhesive part 71 is disposed on the non-skin-facing surface side T2 of the main body part 2, and has an adhesive agent for fixing the main body part 2 to underwear. The main body bonding portion 71 is provided in a region overlapping the absorbent core 31 in the thickness direction T of the absorbent article 1. Preferably, the main body bonded portion 71 extends continuously or intermittently from at least the central region S3 toward the rear of the absorbent article 1. The main body bonding portion 71 extends in the front-rear direction L, and is provided in plurality at intervals in the width direction W. The body bonding portions 71 of the present embodiment are arranged in four rows with the center of the body 2 in the width direction interposed therebetween.

The main body adhesion portion 71 is covered with a main body release sheet 75. The main body release sheet 75 is disposed between the package sheet 100 and the absorbent article 1. The body release sheet 75 is joined to the inner surface of the packaging sheet 100 via the body fixing portion 91. The body adhesive portion 71 and the body release sheet 75 are disposed so as to straddle the first fold FL1, the second fold FL2, and the third fold FL 3. As shown in fig. 2, the body fixing portions 91 are disposed at intervals in the front-rear direction L. The body fixing portion 91 includes a first body fixing portion 911 disposed in the first region R11, a second body fixing portion 912 disposed in the second region R12, a third body fixing portion 913 disposed in the third region, and a fourth body fixing portion 914 disposed in the fourth region R14. The body fixing portion 91 may have at least the first body fixing portion 911.

The fin adhesive portion 72 is disposed on the non-skin facing surface side T2 of the fin portion 3, and has an adhesive agent for fixing the fin portion 3 to underwear. As shown in fig. 2, the fin adhesion part 72 has a first fin adhesion part 721 and a second fin adhesion part 722. The first fin adhesive portion 721 constitutes a first fin adhesive portion, and the second fin adhesive portion 722 constitutes a second fin adhesive portion. The second fin adhesion portion 722 is located further inward in the width direction (on the root side of the fin) than the first fin adhesion portion 721 in the developed state of the absorbent article 1. The hip flap adhesive part 73 is disposed on the non-skin facing surface side T2 of the hip flap 4, and has an adhesive for fixing the hip flap 4 to underwear. The leading edge of the first fin adhesion portion 721 may be arranged on the rear side of the leading edge of the second fin adhesion portion 722. The rear end edge of the first fin adhesive part 721 may coincide with the rear end edge of the second fin adhesive part 722 in the front-rear direction.

The front-rear direction length of the first fin adhesion part 721 may be longer than the front-rear direction length of the second fin adhesion part 722. In addition, the area of the first fin adhesion part 721 may be larger than that of the second fin adhesion part 722. In the unfolded state of the package, the area of the fin adhesion portion 72 in the region inside the center of the fin portion 3 in the width direction W may be larger than the area of the fin adhesion portion 72 in the region outside the center of the fin portion in the width direction W. The region inside the center of the fin portion 3 in the width direction W is close to the fin fold FL5, and wrinkles and twists are likely to occur due to the bending of the fin portion 3. By increasing the area of the fin adhesion portion 72 in the region inside the center of the fin portion 3 in the width direction W, wrinkles and twists in the vicinity of the fin fold FL5 can be suppressed, and wrinkles and the like can be suppressed from occurring in the fin adhesion portion 72. In addition, it is possible to suppress twisting of the fin portion 3, and suppress the problem that the fin adhesion portions 72 stick to each other or the fin adhesion portions 72 stick to unintended areas.

The fin adhesive portion 72 and the hip flap adhesive portion 73 may be separated from the flap fold FL5 in the width direction W. Wrinkles and twists are likely to occur in the vicinity of the flap fold FL5 due to bending of the wing portion 3 and hip flap 4. By separating the fin adhesion portion 72 and the hip flap adhesion portion 73 from the flap fold FL5 in the width direction W, the fin adhesion portion 72 and the hip flap adhesion portion 73 can be prevented from being inadvertently bonded due to the wrinkle or the like. In addition, it is possible to suppress twisting of the fin portions 3 and the like, and to suppress the problems of sticking of the fin adhesion portions 72 to each other, sticking of the hip flap adhesion portions 73 to each other, or sticking of the fin adhesion portions 72 and the like to unintended areas.

The rigidity of the region of the fin portion 3 where the fin adhesion portion 72 is not provided is lower than the rigidity of the region where the fin adhesion portion 72 is provided. Similarly, the rigidity of the hip flap 4 in the region where the hip flap adhesive part 73 is not provided is lower than the rigidity of the region where the hip flap adhesive part 73 is provided. By providing the regions with relatively low rigidity between the fin adhesion portion 72 and the fin fold FL5 and between the hip fin adhesion portion 73 and the fin fold FL5, it is possible to absorb deformation caused by bending of the fin 3 and the like in the regions, and to suppress the occurrence of wrinkles and the like in the fin adhesion portion 72 and the hip fin adhesion portion 73. In addition, it is possible to suppress twisting of the fin portions 3 and the like, and to suppress the problems of sticking of the fin adhesion portions 72 to each other, sticking of the hip flap adhesion portions 73 to each other, or sticking of the fin adhesion portions 72 and the like to unintended areas.

As shown in fig. 3, the fin adhesive part 72 and the hip flap adhesive part 73 are disposed on the front side (the side opposite to the side facing the package sheet 100) of the absorbent article 1 in a state where the fin part 3 and the hip flap 4 are folded back to the skin-facing surface side T1 of the main body part 2, and are covered with the flap release sheet 76. The pair of fin adhesion portions 72 are separated from each other in a state where the fin portions 3 are folded back to the skin-facing surface side T1 of the main body 2. Similarly, the pair of hip flap adhesion portions 73 are separated from each other in a state where the hip flaps 4 are folded back to the skin-facing surface side T1 of the main body 2.

The tab release sheet 76 covers the pair of fin adhesion parts 72. The flap release sheet 76 is disposed so as to straddle the second fold FL2 and covers both the fin adhesive portion 72 and the hip flap adhesive portion 73. In another embodiment, the fin peeling sheet 76 may be disposed so as to cover only the fin adhesion portion 72. The fin adhesive portion 72 and at least a part of the tab release sheet 76 may be disposed on the front end edge 110F side of the package with respect to the second fold FL 2.

The packaging sheet 100 is projected toward the rear end edge side with respect to the first fold FL1, and in the third folded state, the flap release sheet 76 faces the outer surface 100B of the packaging sheet 100. The flap releasing sheet 76 is joined to the outer surface 100B of the packaging sheet 100 via the flap fixing portion 92 in the third folded state. The flap fixing portion 92 is disposed on the front end edge 110F side of the package body 110 with respect to the second fold FL2, and is disposed in a region where the package sheet 100 and the flap release sheet 76 face each other in the third folded state.

As shown in fig. 12, in the packaged state, the outer surface 100B of the package sheet 100 is joined to the flap release sheet 76 via the flap fixing portion 92, and the inner surface 100T of the package sheet 100 is joined to the body release sheet 75 via the body fixing portion 91. The body fixing portion 91 and the fin fixing portion 92 overlap in the thickness direction T. At least a part of the body fixing portion 91 and at least a part of the tab fixing portion 92 may overlap.

Further, the fin peeling sheet 76 of the present embodiment is disposed across the pair of fin adhesion portions 72, but in another form, the fin peeling sheet 76 may be disposed so as to cover the fin adhesion portions 72 while being separated in the width direction. In the structure in which the fin peeling sheets 76 cover the fin adhesion portions 72, the fin fixing portions 92 may be provided to the fin peeling sheets 76.

The bonding strength between the package sheet 100 and the body release sheet 75 by the body fixing portion 91 is higher than the bonding strength between the body release sheet 75 and the absorbent article by the body adhesive portion 71. Therefore, in use, when the body release sheet 75 is pulled through the wrapping sheet, the body release sheet 75 is separated from the absorbent article 1 and the body bonding section 71 without peeling the wrapping sheet 100 from the body release sheet 75.

Similarly, the bonding strength between the package sheet 100 and the flap release sheet 76 in the flap fixing portion 92 is higher than the bonding strength between the flap release sheet 76 and the absorbent article 1 in the fin adhesive portion 72. Therefore, in use, when the flap release sheet 76 is pulled through the wrapping sheet, the flap release sheet 76 is separated from the absorbent article and main body bonded portion 71 without peeling the wrapping sheet 100 from the flap release sheet 76.

Further, the strength of bonding of label tape 102 to package sheet 100 may be higher than the strength of body fixing portion 91 that bonds package sheet 100 to body release sheet 75. Therefore, the package body 110 can be unfolded with the label tape 102 held without damaging the body fixing portion 91 that joins the package sheet 100 and the body release sheet 75.

The bonding strength of label tape 102 to packaging sheet 100 can be higher than the bonding strength of body release sheet 75 to body adhesive part 71. In addition, the bonding strength of the label tape 102 to the packaging sheet 100 may be higher than the bonding strength of the fin peeling sheet 76 to the fin adhesive part 72. As will be described later, according to the package of the present embodiment, the user can hold the package 110 near the label tape 102 and the vicinity of the front end edge of the absorbent article 1 to start unfolding, and can separate the package sheet 100 from the absorbent article without changing hands until the unfolding is completed. At this time, by making the bonding strength between label tape 102 and package sheet 100 higher than the bonding strength between body release sheet 75 and body adhesive section 71, body adhesive section 71 and body release sheet 75 can be peeled off via package sheet 100 while maintaining the bonding between label tape 102 and package sheet 100. Similarly, by making the bonding strength between label tape 102 and package sheet 100 higher than the bonding strength between fin peeling sheet 76 and fin adhesive section 72, it is possible to peel fin adhesive section 72 and fin peeling sheet 76 via package sheet 100 while maintaining the bonding between label tape 102 and package sheet 100.

Next, the unfolded state of the package in use will be described with reference to fig. 11 to 20. Fig. 11 is a perspective view of a packaged state in which the absorbent article 1 is individually packaged by the packaging sheet 100. Fig. 12 is a sectional view taken along line 11A-11A shown in fig. 11. Fig. 13 to 17 are views for explaining the development process at the cross section based on the line 11A-11A shown in fig. 11. Fig. 13 shows the package 110 in the unfolding

steps

2 and 3. Fig. 14 shows the package 110 in the unfolding step 4. Fig. 15 shows the package 110 in the unfolding step 5. Fig. 16 shows the package 110 in the unfolding steps 6 and 7. Fig. 17 shows the package 110 in the unfolding step 7. Fig. 18 is a diagram showing the package 110 in the unfolding step 4. Fig. 19 is a cross-sectional view taken along line 13A-13A of fig. 13. FIGS. 20 to 22 are views showing the package in the unfolding step 4 in a cross section taken along line 13A-13A shown in FIG. 13. For convenience of explanation, the leakage preventing hem is omitted in fig. 19 and 20, and the leakage preventing hem 60 is shown in fig. 21 and 22. The following expansion mode is an example, and the expansion mode may be different depending on the user.

First, in order to unfold the package 110 from the packaged state shown in fig. 11 and 12, the user grips the label tape 102 and unfolds the absorbent article 1 and the package sheet 100 with the third fold FL3 as a base point (unfolding step 1). Fig. 13 shows the package 110 in the third folded state in which the package is folded with the first fold line FL1 and the second fold line FL2 as base points and is not folded with the third fold line FL 3.

Next, the user peels the packaging sheet 100 from the main body adhesive portion 71 (unfolding step 2). More specifically, as shown in fig. 13, the front end edge 100F of the wrapping sheet 100 is moved in the rotation direction X131 around the second fold FL2, and the wrapping sheet 100 is moved so as to be separated from the main body bonding portion 71. At this time, the body peeling sheet 75 is joined to the packaging sheet 100 by the body fixing portion 91, and therefore moves together with the packaging sheet 100. In fig. 13, the package sheet 100 and the main body peeling sheet 75 in the development step 2 are shown by a one-dot chain line.

After the user peels the package sheet 100 from the main body adhesive part 71 to the vicinity of the second fold FL2, the user moves the package sheet 100 in the rotation direction X132 about the first fold FL1 and moves the package sheet 100 away from the main body adhesive part 71 (unfolding step 3). In fig. 13, the package sheet 100 and the main body release sheet 75 in the development step 3 are shown by solid lines.

As shown in fig. 14, the user then unfolds the packaging sheet 100 and the absorbent article 1 with the second fold FL2 as a base point (unfolding step 4). In the unfolding step 4, the package 110 is unfolded from the third folded state to the second folded state. In a third folded state after being folded with the second fold FL2 as a base point, the package sheet 100 and the flap release sheet 76 are joined together via the flap fixing portion 92. Therefore, when the package 110 is unfolded from the third folded state to the second folded state, the tab releasing sheet 76 is pulled in a direction away from the fin adhesion part 72 via the package sheet 100. More specifically, the user moves the packaging sheet 100 in the rotation direction X14 about the second fold FL 2. As a result, as shown in fig. 14, the package sheet 100, the main body 2, and the tab release sheet 76 move in the rotation direction X14, and the tab release sheet 76 moves away from the fin adhesive part 72. Fig. 14 shows a state in which the tab release sheet moves in the rotational direction together with the wrapping sheet and the tab release sheet is separated from the fin adhesion part 72.

Further, the user further pulls the package sheet 100 and puts the package sheet 100 and the absorbent article 1 into a state of being unfolded without folding them with the second fold FL2 as a base point (unfolding step 5). In the state shown in fig. 15, there is a first folded state in which only the flap release sheet 76 is folded at the second fold FL2 and the other members are not folded at the second fold FL 2. In this state, the flap release sheet 76 is in contact with the hip flap adhesive part 73 located in the second region R12. In the cross section shown in fig. 15, although the hip flap adhesive portion 73 is not shown, the position corresponding to the hip flap adhesive portion 73 is shown in phantom.

Next, as shown in fig. 16, the user moves the packaging sheet 100 in the rotation direction X161 with the first fold FL1 as a base point (unfolding step 6). At this time, the main body release sheet 75 and the flap release sheet 76, which are disposed so as to sandwich the packaging sheet 100, move in the rotational direction X161 from the first fold FL 1. In the first region R11, the body release sheet 75 is peeled from the body adhesive portion 71. At this time, the flap release sheet 76 located on the rear end edge side of the second fold FL2 is in contact with the hip flap adhesive part 73 of the second region R12. Therefore, when the user further pulls the package sheet 100, the package body 110 moves in the rotational direction X162 (fig. 16) and the rotational direction X17 (fig. 17) with the first fold FL1 as a base point (unfolding step 7). Fig. 17 shows a state in which the region closer to the rear edge than the first fold FL1 of the package sheet 100 and the absorbent article 1 moves in the rotational direction X17 with the first fold FL1 as a base point. The user can peel the body release sheet 75 and the flap release sheet 76 together with the packaging sheet 100 to expose the body adhesive portion 71, the fin adhesive portion 72, and the hip flap adhesive portion 73. According to such a spreading method, the user can start spreading the package 110 near the label tape 102 and near the front end edge of the absorbent article 1, and can separate the package sheet 100 from the absorbent article without changing hands until the spreading is completed.

In the unfolding step 4, the user can hold the package sheet 100 and the absorbent article 1 near the first fold FL1, and move the package near the first fold FL1 in the rotational direction with the second fold FL2 as a base point. When the package sheet 100 is unfolded in this manner, the force for unfolding the package sheet 100 is easily transmitted to the tab fixing portion 92, and the tab releasing sheet 76 can be easily peeled off from the fin adhesive portion 72.

However, depending on the user, as in the above-described unfolding step 4, the package sheet 100 is held on the front end edge 100F side of the package sheet 100 after the previous unfolding step 3, and is pulled and unfolded. Specifically, for example, the front end edge 1F of the absorbent article 1 is gripped with one hand, the front end edge 100F of the package sheet 100 is gripped with the other hand, the package sheet 100 is peeled from the body bonding section 71 in the region between the first fold FL1 and the front end edge 1F of the absorbent article 1 (unfolding step 3), the package sheet 100 and the absorbent article 1 are directly gripped, and the package body 110 is unfolded by applying a force to the first fold FL1 via the package sheet 100 (unfolding step 4). As described above, the package 110 of the absorbent article according to the present embodiment is configured such that when the package 110 is unfolded while holding the package sheet 100 in the unfolding step 4, the body release sheet 75 can be easily peeled off from the body adhesive section 71 and the fin release sheet 76 can be easily peeled off from the fin adhesive section 72.

As described above, in the unfolding step 4, when a force is applied to the first fold FL1 via the package sheet 100, the first fold FL1 side of the package body 110 moves in the rotation direction X14 (fig. 14) about the second fold FL2, and the tab peeling sheet 76 moves in the rotation direction X14 together with the package sheet 100 along with the movement, and the tab peeling sheet 76 is separated from the tab bonding portion 72 in the third region R13.

When the first fold FL1 side is moved in the rotation direction X14 around the second fold FL2 side, the package sheet 100 needs to be moved not only in the rotation direction but also in the rotation direction of the entire absorbent article 1. Even if only a force is applied to the wrapping sheet 100, if the absorbent article 1 does not move in the rotation direction X14, a force is applied that moves only the wrapping sheet 100 in the front-rear direction L, and the flap releasing sheet 76 cannot be pulled in a direction away from the fin adhesive section 72 via the flap fixing section 92. As a result, shear stress is generated by the fin adhesive portion 72 in contact with the fin release sheet 76, and the fin release sheet 76 may be difficult to separate from the fin adhesive portion 72 in the third region R13.

In the package 110 of the present embodiment, the force applied to the package sheet 100 is transmitted to the body peeling sheet 75 via the body fixing portion 91. The main body release sheet 75 is in contact with the main body adhesive section 71 in order to easily transmit force to the absorbent article 1. When the user applies a force to the first fold FL1 side in the rotational direction X14 via the wrapping sheet 100, the force is transmitted to the body release sheet 75 via the body fixing portion 91, and the first fold FL1 side of the absorbent article 1 easily moves in the rotational direction X14.

The body fixing portion 91 and the fin fixing portion 92 overlap in the thickness direction T. Therefore, when force is transmitted from the package sheet 100 to the main body release sheet 75 and the absorbent article 1 via the body fixing portion 91 and the package sheet 100 and the main body release sheet 75 are moved in the rotation direction X14, the flap release sheet 76 is also easily moved in the rotation direction X14, and the flap release sheet 76 can be easily released from the flap adhesive portion 72. Therefore, the body release sheet 75 can be easily peeled off from the body adhering portion 71, and the tab release sheet 76 can be easily peeled off from the fin adhering portion 72.

In the third folded state in which the package 110 is folded with the first fold FL1 and the second fold FL2 as the base points, the body fixing portion 91 and the flap fixing portion 92 may be arranged closer to the first fold FL1 side than the center in the front-rear direction L of the second fold FL2 and the first fold FL 1. The center in the front-rear direction L of the second fold FL2 and the first fold FL1 becomes the center in the front-rear direction of the third region R13. By separating the body fixing portion 91 and the flap fixing portion 92 from the second fold FL2, which becomes the rotation axis in the unfolding process 4, the first fold FL1 side can be easily moved in the rotation direction around the second fold FL2 in the unfolding process 4. At least a part of the body fixing portion 91 and at least a part of the flap fixing portion 92 may be disposed on the first fold FL1 side with respect to the center in the front-rear direction L of the second fold FL2 and the first fold FL 1. More preferably, the body fixing portion 91 and the flap fixing portion 92 are preferably offset to the first fold FL1 side from the center in the front-rear direction L of the second fold FL2 and the first fold FL 1.

In the third folded state in which the package 110 is folded with the first fold FL1 and the second fold FL2 as base points, the tab fixing portion 92 may overlap with a region between the pair of fin adhesive portions 72 in the thickness direction T. In the unfolding step 4, when the fin peeling sheet 76 moves so as to be separated from the fin adhesion portion 72, the region of the fin peeling sheet 76 that contacts the fin fixing portion 92 moves first, and the region of the fin peeling sheet 76 that contacts the fin adhesion portion 72 moves to follow. This is because the fin adhesive portion 72 does not overlap the tab securing portion 92. As shown in fig. 18 and 20, the tip of each fin 3 moves in the rotation direction X18 with the root of each fin as a base point, and rises from the skin-facing surface side T1 of the absorbent article 1. The pair of fins 3 and the main body 2 are arranged so as to surround a substantially triangular space.

In a state where the fin portion 3 and the body portion 2 are arranged to form a triangle, the center in the width direction W of the flap peeling piece 76 (the portion overlapping the flap fixing portion 92) is pulled toward the package sheet 100, and the flap peeling piece 76 is bent. However, the flap release sheet 76 is pulled together with the packaging sheet 100, and thereby the flat state is intended to be maintained. Therefore, in the unfolding step 4, the tab peeling pieces 76 are moved in a state where the distal ends of the fins 3 are deformed so as to rise from the root portions of the fins, and thereby the outer edges of the fin adhesion parts 72 in the first folded state start to be peeled from the tab peeling pieces 76. The tab releasing sheet 76 is gradually separated from the fin adhesion part 72, and the tab releasing sheet 76 can be easily released from the fin adhesion part 72.

The length of the flap fixing portion 92 in the width direction W may be shorter than the length of the body fixing portion 91 in the width direction W. In the expanding step 4, when the tip end of each fin 3 is deformed so as to rise with respect to the root of the fin 3, the tip end of each fin is pulled further toward the center side in the width direction W of the body 2, and the rising angle of the fin 3 can be increased. Therefore, the tab peeling sheet 76 can be peeled off from the fin adhesion part 72 more easily.

In another embodiment, the length of the flap fixing portion 92 in the width direction W may be longer than the length of the body fixing portion 91 in the width direction W. In the unfolding step 4, the flap separation sheet 76 can be pulled in the unfolding direction over a wide range in the width direction via the flap fixing portion 92. Therefore, the tab releasing sheet 76 can be released from the fin adhesion part 72.

The tab fixing portion 92 may be disposed apart from the fin adhesion portion 72 in the width direction in a region between the pair of fin adhesion portions 72. In the unfolding step 4, when the tip of each fin 3 is deformed so as to rise with respect to the root of the fin 3, the rising angle of the fin 3 can be further increased. Therefore, the tab peeling sheet 76 can be peeled off from the fin adhesion part 72 more easily.

The leading edge of the first fin adhesion portion 721 may be arranged on the rear side of the leading edge of the second fin adhesion portion 722. The leading edge, which is the edge on the second end edge side of the fin adhesion portion 72, is the side distant from the second fold FL2 that becomes the development base point in the development step 4. The second fin adhesion part 722 located on the root side of the fin part 3 extends to the side farther from the second fold FL2 than the first fin adhesion part 721 located on the tip side of the fin part 3. In the first folded state in which the fin portion 3 is folded to the skin-facing surface side of the main body portion 2, the fin adhesive portion positioned on the inner side in the width direction has a short length in the front-rear direction. Therefore, when the tip of each fin 3 is deformed so as to rise with respect to the root of each fin 3, the tip side of the fin 3 tends to rise earlier than the root side of the fin 3. The rising angle of the fin portion 3 can be increased, and the outer edge of the fin adhesion portion 72 and the tab release sheet 76 can be gradually released, so that the tab release sheet 76 can be more easily released from the fin adhesion portion 72.

The second side low area weight region R41 of the low area weight portion 34 may extend in the front-rear direction L at a position closer to the leading edge than the second fold FL 2. The absorbent core 31 in the region closer to the leading edge than the second fold FL2 forms a deformation origin extending in the front-rear direction L by the second side low basis weight region R41, and is easily bent in the width direction W. Therefore, in the unfolding step 4, when the fin portion 3 is pulled via the tab releasing sheet 76 and the fin adhesive portion 72, the center in the width direction W of the region on the leading edge side of the second fold FL2 is deformed so as to be apart from the tab releasing sheet 76. The absorbent core 31 in the region closer to the leading edge than the second fold FL2 is deformed into a curved shape. As a result, as shown in fig. 18, the root of the fin portion 3 located on the leading edge side of the second fold FL2 moves inward in the width direction W, and the rising angle of the fin portion 3 increases. Therefore, the tip of each fin portion rises from the root of each fin portion as a base point, and is arranged so as to surround a substantially triangular space by the pair of fin portions 3 and the main body portion 2. As described above, the outer edge of the fin adhesive part 72 in the first folded state starts peeling off from the tab peel sheet 76. The tab releasing sheet 76 is gradually separated from the fin adhesion part 72, and the tab releasing sheet 76 can be easily released from the fin adhesion part 72.

The front and rear low basis weight regions R42 of the low basis weight portion 34 may not be provided in the first region R11 on the rear edge side of the first fold FL1 in the expanded state. In the development step 4, when developing with the second fold FL2 as a base point, the region closer to the first fold FL1 than the second fold FL2 is moved in the rotational direction with respect to the region closer to the leading edge than the second fold FL 2. At this time, the region between the first fold FL1 and the tab fixing portion 92 is made less likely to deform inward in the width direction, and the region on the leading edge side of the second fold FL2 is made relatively likely to deform inward in the width direction. Therefore, when the fin 3 is pulled via the tab separation piece 76 and the fin adhesion portion 72, the root of the fin moves inward in the width direction W, and the rising angle of the fin 3 is likely to increase. Therefore, the tab releasing sheet 76 can be easily released from the fin adhesion part 72.

In another embodiment, the front and rear low basis weight regions R42 may not be provided in the second region R12. That is, it may be that the front and rear low area weight regions R42 are not provided in the region between the first fold FL1 and the second fold FL2 in the expanded state. By not providing the front and rear low basis weight regions R42 in both the first region R11 and the second region R12, the region on the first edge side of the second fold FL2 is less likely to be deformed and the region on the front edge side of the second fold FL2 is more likely to be deformed inward in the width direction W in the developing step 4. Therefore, when the fin 3 is pulled via the tab separation sheet 76 and the fin adhesion portion 72, the base of the fin 3 moves inward in the width direction, and the rising angle of the fin 3 is likely to increase. Therefore, the rising angle of the fin portion 3 is further increased, and the tab peeling pieces 76 can be easily peeled off from the fin adhesion portion 72.

In the third folded state in which the package 110 is folded with the first fold line FL1 and the second fold line FL2 as base points, the second side low area weight region R41 and the flap fixing portion 92 may be arranged closer to the first fold line FL1 side than the center in the front-rear direction L of the second fold line FL2 and the first fold line FL 1. Since the flap fixing portion 92 is separated from the second fold FL2 which is a rotation axis when the cover sheet is unfolded from the second fold FL2, the flap separation sheet 76 is easily moved in the unfolding direction by pulling the cover sheet 100 at the time of the unfolding. At this time, since the deformation origin point generated by the second side low area weight region R41 is provided on the first fold line FL1 side, the rising angle of the fin portion 3 can be further increased on the first fold line FL1 side.

The region between the first fold FL1 and the flap fixing portion 92 in the deployed state of the first side low area weight region R43 of the low area weight portion 34 may extend outward in the width direction W toward the first fold FL1 side. In a region between the first fold FL1 and the tab fixing portion 92, a deformation base point extending outward in the width direction W toward the first fold FL1 side is formed. In a cross section in the thickness direction, the absorbent core 31 on the side of the flap release sheet relative to the flap fixing portion 92 forms a deformation origin extending outward in the width direction W from the flap fixing portion 92 toward the first fold FL1 by the deformation origin generated by the first side low basis weight region R43. Therefore, in the unfolding step 4, even when the flap separation sheet 76 is pulled through the packaging sheet 100, a deformation base point extending outward in the width direction W from the flap fixing portion 92 toward the first fold FL1 is formed in the flap separation sheet 76. The tab releasing sheet 76 is deformed so as to be separated from the fin adhesion portion 72, and the tab releasing sheet 76 can be easily released from the fin adhesion portion 72.

The package of the present embodiment is configured to be able to suppress the problem that the fin adhesion portion 72 as the fin adhesion portion is inadvertently adhered in the fourth developed state. Specifically, the outer edge 622E of the folded portion 622 may be disposed on the outer side in the width direction of the absorbent core 31. The folded portion 622 of the contraction portion 62 has the leakage preventing elastic member 61, and stands up toward the outside in the width direction and the wearer side from the inner edge of the extension portion 621 as a base point in the central region S3.

As shown in fig. 21, in a state where the fin portion 3 is folded back with the tab fold FL5 as a base point, the leakage preventing hem 60 is disposed between the fin portion 3 and the main body portion 2 disposed with the tab fold FL5 interposed therebetween. Therefore, the inner surface (skin facing surface side in the unfolded state) of the wing 3 in this folded state is disposed so as to face the outer edge 622E of the folded portion 622. As shown in fig. 22, in the unfolding step 4, when the fin portion 3 is pulled together with the tab peeling sheet 76 and moved to the inside (X221) in the width direction W, the outer edge 622E of the folded portion 622 contacts the inner surface of the fin portion 3, and the movement of the fin portion 3 to the inside in the width direction can be restricted. Fig. 22 shows a state where the outer edge 622E of the folded portion 622 hits the inner surface of the fin portion 3. The outer edge 622E of the folded portion 622 is positioned further outward in the width direction than the absorbent core 31, and the fin 3 is pressed toward the wearer side and outward in the width direction in the vicinity of the outer edge 31E of the absorbent core 31 (X222). Therefore, the twisting of the fin 3 in the spreading step 4 can be suppressed, and the problem that the fin adhesion portions 72 stick to each other or the fin adhesion portions 72 stick to unintended areas can be suppressed.

The inner edge 63I of the first base point portion 63 may be arranged outside the absorbent core 31 in the width direction W in the central region S3. The rising fulcrum of the entire constricted portion 62 of the central region S3 serves as the first base point portion 63. Since the inner edge of the first origin point portion 63 is positioned further outward in the width direction W than the absorbent core 31, the contraction portion 62 easily contacts the inner surface of the fin portion 3 in the first folded state when the fin portion 3 is moved inward in the width direction. Therefore, the fin portion can be pressed outward in the width direction, and the wing portion can be prevented from twisting in the unfolding step 4.

Further, the inner edge 64I of the second base point portion 64 may be disposed in a region overlapping the absorbent core 31. The second base point portions 64 are provided in a pair at intervals in the front-rear direction, and the region between the second base point portions 64 in the front-rear direction L is raised with the second base point portions 64 as base points. By overlapping the second base point portions 64 with the relatively rigid absorbent core 31, the raising support points by the second base point portions 64 are stabilized, and the contracted portion 62 is more easily raised in the region between the second base point portions 64 in the front-rear direction L.

The tab fixing portion 92 may overlap with an area between the pair of fin adhesion portions 72 and be separated from the fin adhesion portions 72 in the thickness direction T. In the unfolding step 4, when the user pulls the package sheet 100, the flap separation sheet 76 moves in the unfolding direction away from the fin adhesive part 72 in the thickness direction T (X162 in fig. 16, X17 in fig. 17). At this time, the fin adhesion portion 72 is separated from the fin fixing portion 92 in the width direction W, and therefore, is difficult to move in the extending direction together with the fin fixing portion 92, and the flat state is easily maintained. Therefore, in the unfolding step 4, the tab peeling sheet 76 is easily peeled off from the fin adhesion parts 72, and the problem that the fin adhesion parts stick to each other or the fin adhesion parts 72 stick to unintended areas can be suppressed.

The leakage-proof non-joined portion 66 of the leakage-proof ruffle 60 may reach the outer side edge 622E of the flap portion 922 in the unfolded state. The outer edge of the folded portion 622 rises relative to the protruding portion 621 without engaging with the protruding portion 621. The folded portion 622 is more likely to stand up to the outside in the width direction W and the wearer side, and can press the fin portion 3 to the outside in the width direction and restrict the movement of the fin portion 3 to the inside in the width direction W.

The outer edge 65E of the leakage preventing joint 65 may be arranged outside the outer edge 31E of the absorbent core 31 in the width direction W. The rising fulcrum of the folded portion 622 in the region overlapping the second base point portion 64 becomes the outer edge 65E of the leakage-preventing joint portion 65. Since the rising support point of the folded-back portion 622 is located outside the absorbent core 31 in the width direction W, the contraction portion 62 easily touches the inner surface of the fin portion when the fin portion 3 in the folded-back state is moved to the inside in the width direction W. The fin 3 can be pressed outward in the width direction, and the movement of the fin 3 inward in the width direction can be restricted.

The leakage preventing elastic member 61 may be disposed further outward in the width direction W than the flap release sheet 76 in the first folded state. The region on the outer side in the width direction W than the flap release sheet 76 in the first folded state is not covered with the flap release sheet 76, and is low in rigidity and easily deformed. By providing the leak-proof elastic member 61 of the folded portion 622 in this region, the fin 3 in the region with relatively low rigidity can be suppressed from moving inward in the width direction.

The low area weight portion 34 may be provided in the central region S3. Specifically, at least the first low basis weight portion 341 extending in the front-rear direction is provided in the central region S3. The low basis weight portion 34 has a curved shape in which the center in the width direction protrudes toward the front side, and extends in the front-rear direction L. The absorbent core 31 of the central region S3 is easily bent with the first low basis weight portion 341 as a base point. More specifically, as shown in fig. 22, when the fin 3 is pulled via the fin peeling sheet 76 and the fin adhesive section 72, the center of the absorbent core 31 in the width direction W is deformed into a curved shape so as to be apart from the fin peeling sheet 76. As a result, as shown in fig. 18 and 22, the root of the fin portion 3 located on the leading edge side of the second fold FL2 moves inward in the width direction W.

Therefore, in the unfolding step 4, the fin peeling pieces 76 are moved in the unfolding direction while the root portions of the fins 3 are moved inward in the width direction W (X162 in fig. 16, X17 in fig. 17). At this time, the fin portion 3 is pressed outward in the width direction by the contraction portion 62, and the fin adhesion portion 72 is easily maintained in a flat state. The occurrence of wrinkles and the like in the fin adhesion portion 72 can be suppressed.

The low area weight portion 34 may overlap with a region between the pair of fin adhesion portions 72 in the thickness direction T. The absorbent core 31 of the central region S3 is easily bent between the pair of fin adhesion portions 72 with the low basis weight portion 34 as a base point. Therefore, when the fin adhesive section 72 is pulled via the tab releasing piece 76, the fin 3 is more easily raised. At this time, the fin portion 3 is pressed outward in the width direction W by the contraction portion 62, and the fin adhesion portion 72 is easily maintained in a flat state. Therefore, the fin peeling sheet 76 can be peeled from the fin adhesion portion 72 by moving the fin peeling sheet 76 in the developing direction while suppressing the occurrence of wrinkles or the like in the fin adhesion portion 72.

The low basis weight portion 34 may be provided in a region not overlapping the main body adhesive portion 71 and the fin adhesive portion 72 in the unfolded state of the package 110. The region not overlapping the main body bonding portion 71 and the fin bonding portion 72 is a region that is not joined to underwear or the like and is easily deformed when worn. By providing the low basis weight portion 34 in this region, the absorbent core 31 is more easily deformed from the low basis weight portion 34, and the fin portion 3 is more easily raised. The fin peeling sheet 76 is easily separated from the fin portion 3 in the extending direction, and the fin peeling sheet 76 can be peeled from the fin adhesion portion 72 while suppressing twisting of the fin portion 3.

The package of the present embodiment is configured to be able to absorb twisting of the absorbent article in the fourth unfolded state. Specifically, the second side low area weight region R41 may extend in the width direction W in a region closer to the leading edge than the blade fixing portion 92 in the deployed state. When the package sheet is unfolded from the second fold FL2 as a base point, depending on the user, it may be difficult to pull the package sheet 100 substantially perpendicularly to the front end edge 1F of the absorbent article 1. When the wrapping sheet 100 is pulled with one hand while holding the leading edge 1F of the absorbent article 1, the flap fixing portions 92 to which a force is applied via the wrapping sheet 100 are pulled obliquely, and twisting occurs in the main body portion 2 in the region between the flap fixing portions 92 and the leading edge 1F of the absorbent article 1. When the body 2 in the region between the flap fixing portion 92 and the leading edge 1F of the absorbent article 1 twists, the flap release sheet 76 and the fin adhesive portion 72 are less likely to move in the direction of mutual release. Shear stress due to the fin adhesion portion 72 is generated, and the fin peeling sheet 76 may not be smoothly peeled from the fin adhesion portion 72.

The second side low area weight region R41 extends in the width direction W in a region closer to the leading end edge (second end edge) 1F side than the blade fixing portion 92, whereby the second side low area weight region R41 can absorb the torsion of the body portion 2. Specifically, as shown in fig. 23, the second side low area weight region R41 based on the first low area weight portion 341 deforms, and can absorb torsion in the front-rear direction L and the width direction W. Fig. 23 is a view showing a deformed state of the absorbent core 31 in a plan view of the absorbent article. Fig. 23(a) shows a state before deformation, and fig. 23(b) shows a state after deformation. For example, when the fin portion 3 is pulled to the left and upper side of fig. 21 with respect to the leading edge 1F of the absorbent article via the tab fixing portion 92 and the wrapping sheet 100, a force is applied to the left and upper side of the body portion 2 sandwiched by the fin portion 3. As shown in fig. 23(b), when a force is applied to the body 2 toward the left and upward, the first low area weight portion 341 deforms. More specifically, a force denoted by reference numeral X211 is applied to the left region of the main body 2, and a force denoted by reference numeral X211 is applied to the right region of the main body. As a result, the first low basis weight portion 341 deforms, the vane fastening portion 92 and the body fastening portion 91 tilt toward the left and upward, and the torsion between the vane fastening portion 92 and the fin adhesion portion 72 can be absorbed. Fig. 24 is a perspective view of the package 110 in the unfolding step 4, schematically showing a state in which the twist of the region on the leading edge side of the tab fixing portion 92 is absorbed in the fourth unfolding step. Reference numeral 22WCL in fig. 24 denotes the center of the main body 2 in the width direction W. Even when the wrapping sheet cannot be pulled substantially perpendicularly with respect to the leading end edge of the absorbent article, the second side low-basis-weight region R41 can absorb the twist, and the flap release sheet 76 can be pulled substantially perpendicularly with respect to the fin adhesive section 72. Therefore, the tab releasing sheet 76 can be easily released from the fin adhesion part 72.

A region between the flap fixing portion 92 and the first fold FL1 of the second side low area weight region R41 in the unfolded state may extend in the width direction W. The region between the flap fixing portion 92 and the first fold FL1 more easily exerts a force in the unfolding direction in the fourth unfolding process. By providing the second side low area weight region R41 in the region between the flap fixing portion and the first fold FL1, the effect of absorbing the twist of the main body portion 2 can be more easily obtained.

It may be that the second side low area weight region R41 reaches the outer edge of the absorbent core 31. The second side low basis weight region R41 can divide the region on the leading edge 1F side of the absorbent article 1 and the region overlapping the flap fixing portions 92, and the effect of absorbing twisting of the main body portion 2 can be more easily obtained.

The body fixing portion 91 may have a first body fixing portion 911. The first body fixing portion 911 is provided in the first region R11 and is disposed on the first end edge side with respect to the first fold FL 1. Since the wrapping sheet 100 and the body release sheet 75 are joined to the first body fixing portion 911 at a position closer to the rear end edge than the first fold line, the absorbent article can be more easily unfolded via the wrapping sheet 100 and the body release sheet 75 when the wrapping sheet 100 is pulled so as to be unfolded with the second fold line FL2 as a base point in the unfolding step 4. When the package 110 is moved in the rotation direction X14 of fig. 14, the first body fixing portion 911 is located outside the moving region (region on the rear side of the second fold line) in the moving direction. Therefore, a force is easily applied to the entire moving region, and the package 110 can be more smoothly moved in the rotation direction X14, and the package 110 can be unfolded from the second fold line as a base point.

The body fixing portion 91 may have the first body fixing portion 911, and the low basis weight portion 34 may have the intermediate low basis weight region R44 located in the second region R12 (the region between the first fold and the second fold). The force applied to the packaging sheet 100 is transmitted to the body peeling sheet 75 via the body fixing portion 91. The main body release sheet 75 is in contact with the main body pressure-sensitive adhesive portion 71, and easily transmits force to the absorbent article 1. Therefore, in the third folded state, when the user applies a force to the first fold FL1 through the packaging sheet 100, the force is transmitted to the body separating sheet 75 through the body fixing portion 91, and the first fold side of the body 2 easily moves in the rotational directions X162 and X17 (fig. 16 and 17) around the second fold FL 2. When the first fold side of the main body portion 2 is moved in the rotational direction about the second fold FL2 from the third folded state, the absorbent core 31 of the second region R12 is deformed with the intermediate low basis weight region R44 as a base point. By deforming the absorbent core 31 in the second region R12, the flap release sheet 76 is deformed so as to follow the absorbent core 31 in the second region R12, and the flap release sheet 76 is deformed so as to be separated from the fin adhesive part 72. Therefore, the tab releasing sheet 76 can be easily released from the fin adhesion part 72. The intermediate low basis weight region R44 may be configured such that the absorbent core 31 of the second region R12 is easily deformed, and may extend in the width direction or in the front-back direction. More preferably, as in the present embodiment, the intermediate low area weight region R44 may extend in the width direction and also in the front-rear direction. That is, the intermediate low unit area weight region R44 may be inclined with respect to the width direction and also inclined with respect to the front-rear direction. With such a configuration, the absorbent core in the second region R12 is easily bent in both the front-rear direction and the width direction, and the flap release sheet 76 is more easily deformed so as to be separated from the fin adhesive portion 72.

The body fixing portion 91 may have a first body fixing portion 911 and a second body fixing portion 912. The second body fixing portion 912 is disposed in the second region R12 between the first fold line FL1 and the second fold line FL2 in the unfolded state of the package. The package sheet 100 and the body release sheet 75 are joined to each other by the body fixing portion 91 in both the first region R11 and the second region R12. When the wrapping sheet 100 is pulled so as to be unfolded with the second fold FL2 as a base point, a force can be applied to both sides across the first fold FL1, and the absorbent article can be more easily unfolded via the wrapping sheet 100 and the body release sheet 75.

The first body fixing portion 911 and the second body fixing portion 912 may be overlapped in the thickness direction T in the third folded state. As long as at least a portion of the first body fixing part 911 overlaps at least a portion of the second body fixing part 912. In the unfolding step 4, when a force is applied to both sides sandwiching the first fold by the first body fixing portion 911 and the second body fixing portion 912, the force is easily transmitted, and the absorbent article can be more easily unfolded via the package sheet and the body release sheet.

The boundary between the high basis weight portion 33 and the middle basis weight portion 35 may extend in the width direction W at a position closer to the front end edge 1F of the absorbent article 1 than the third fold FL 3. The boundary between the high basis weight portion 33 and the middle basis weight portion 35 is provided at the outer edge in the width direction of the high basis weight portion 33 and the end edge in the front-rear direction L of the high basis weight portion 33. The boundary between the high basis weight portion 33 and the middle basis weight portion 35 positioned on the front side may extend in the width direction W at a position on the front side of the third fold FL 3. The boundary between the high basis weight portion 33 and the medium basis weight portion 35 is easily deformed due to a difference in rigidity caused by a difference in basis weight of the absorbent material. The twist of the main body 2 in the unfolding step 4 can be absorbed by the boundary between the high basis weight portion 33 and the medium basis weight portion 35. A portion of the package such as label tape 102 closer to the package than the front side region of third fold FL3 is held with one hand. Therefore, the twist of the body 2 can be absorbed in the region near the portion where the package 110 is gripped. Even when the wrapping sheet 100 cannot be pulled substantially perpendicularly to the front end edge of the absorbent article, the boundary between the high basis weight portion 33 and the middle basis weight portion 35 can absorb the twist, and the flap release sheet 76 can be pulled substantially perpendicularly to the fin adhesive portion 72. Therefore, the tab releasing sheet 76 can be easily released from the fin adhesion part 72.

In order to further obtain the effect of absorbing the distortion generated at the boundary between the high basis weight portion 33 and the medium basis weight portion 35, a low basis weight portion 34 extending in the width direction W may be provided at a position forward of the boundary between the high basis weight portion 33 and the medium basis weight portion 35. The torsion of the body 2 can be absorbed by the difference in rigidity at the boundary between the high basis weight portion 33 and the medium basis weight portion 35 and the deformation of the low basis weight portion.

In order to further obtain the effect of absorbing the distortion generated at the boundary between the high basis weight portion 33 and the medium basis weight portion 35, a non-adhesive portion not provided with the adhesive portion 70 may be provided so as to extend in the width direction at a position forward of the boundary between the high basis weight portion 33 and the medium basis weight portion 35. The non-adhesive portion is a region that is not joined to underwear or the like and is easily deformed when worn. By providing the non-adhesive portion extending in the width direction W, the region overlapping the non-adhesive portion of the main body 2 is deformed, and the torsion of the main body 2 can be absorbed. In a form in which the bonded portions extending in the width direction are arranged at intervals in the front-rear direction, the non-bonded portions extending in the width direction may be regions between the bonded portions in the front-rear direction.

The boundary between the high basis weight portion 33 and the medium basis weight portion 35, and the low basis weight portion 34 and the non-adhesive portion extending in the width direction may be provided at least either one of them, or may be provided in combination of them. The boundary between the high basis weight portion 33 and the medium basis weight portion 35, and the low basis weight portion 34 and the non-bonded portion extending in the width direction may reach the outer edge of the absorbent core 31 or may not reach the outer edge of the absorbent core 31.

In addition, the first pressing portion 81 overlaps the first low area weight portion 431 constituting the second side low area weight region R41. The first squeezing portions 81 can suppress the deformation of the first low basis weight portion 431 due to the deformation, and can continue the deformation of the absorbent core 31. In addition, the region where the second side low-basis weight region R41 overlaps the first compressed part 81 is more likely to have a difference in rigidity with respect to the surrounding absorbent core 31, and is more likely to serve as a deformation origin. Therefore, the absorbent core 31 is deformed when the package is unfolded, and the flap release sheet 76 can be more smoothly released from the fin adhesion part 72.

Similarly, the second pressed portion 82 overlaps the second low basis weight portions 432 constituting the second side low basis weight region R41 and the middle low basis weight region R44. The second squeezing portions 82 can suppress the second low basis weight portions 432 from being deformed, and can continue the deformation of the absorbent core 31. Further, the region where the intermediate low basis weight region R44 overlaps with the second compressed portion 82 is likely to have a difference in rigidity with respect to the surrounding absorbent core 31, and is more likely to serve as a deformation base point. Therefore, the absorbent core 31 is deformed when the package is unfolded, and the flap release sheet 76 can be more smoothly released from the fin adhesion part 72.

Similarly, the third squeezing portion 83 overlaps the third low unit area weight portion 433 constituting the intermediate low unit area weight region R44. The third squeezing portions 83 can suppress the deformation of the third low basis weight portion 433 caused by the deformation, and the deformation of the absorbent core 31 can be continued. Further, the region where the intermediate low basis weight region R44 overlaps with the third squeezing portion 83 is likely to have a difference in rigidity with respect to the surrounding absorbent core 31, and is more likely to serve as a deformation base point. Therefore, the absorbent core 31 is deformed when the package is unfolded, and the flap release sheet 76 can be more smoothly released from the fin adhesion part 72.

While the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and variations without departing from the spirit and scope of the present invention defined by the claims. Therefore, the description of the present specification is for illustrative purposes and does not have any restrictive meaning to the present invention.

Further, the entire contents of japanese patent application No. 2018-108170, which was filed on day 5/6/2018, japanese patent application No. 2018-108171, which was filed on day 5/6/2018, and japanese patent application No. 2018-108172, which was filed on day 5/6/2018, are incorporated in the present specification by reference.

Industrial applicability

According to the present invention, it is possible to provide a package of an absorbent article in which the main body release sheet can be easily peeled off from the main body adhesive part when the package is unfolded.

Description of reference numerals

110: packaging body

1: absorbent article

2: main body part

3: wing fin part (wing fin part)

4: hip wing part

10: surface sheet

15: side panel

20: back sheet

31: absorbent core

34: low weight per unit area

341: first low weight per unit area part

342: second low weight per unit area part

343: third low weight per unit area part

345: front and rear low basis weight parts

60: leak-proof ruffle

61: leakage-proof elastic member

62: constriction

621: extension part

622: turnover part

63: first base point

64: second base point part

65: leak-proof joint

66: leak-proof non-joint

70: adhesive part

71: body bonding part

72: wing bonding part (wing bonding part)

721: first fin part bonding part

722: second fin adhesive part

73: hip flap bond

75: main body peeling sheet

76: flap release sheet

91: main body fixing part

911: first body fixing part

912: second body fixing part

913: third body fixing part

914: fourth body fixing part

92: wing fixing part

100: packaging sheet

102: label tape

110: packaging body

FL 1: first fold

FL 2: second fold

FL 3: third fold mark

FL 5: flap creases

L: front-back direction

R11: first region

R12: second region

R13: a third region

R14: fourth region

R41: second side low basis weight region

R42: front and rear low basis weight regions

R43: first side low basis weight region

R44: middle low area weight region

T: thickness direction

T1: skin-facing surface side

T2: non-skin-facing surface side

W: width direction of the sheet

Claims

1. A package for an absorbent article, in which the absorbent article is individually packaged by a packaging sheet,

the absorbent article has:

a main body portion;

a fin portion that protrudes outward in the width direction of the main body portion;

a main body adhesive section which is disposed on a non-skin-facing surface side of the main body section and has an adhesive agent for fixing the main body section to underwear;

a flap adhesive section disposed on a non-skin-facing surface side of the flap section and having an adhesive for fixing the flap section to underwear;

a body release sheet covering the body adhesive portion and joined to the packaging sheet via a body fixing portion; and

a flap release sheet covering the flap adhesive portion in a state in which the flap release sheet is folded to the skin-facing surface side of the main body portion,

the packaging body is folded to the inner side of the packaging body with a first fold line extending in the width direction as a base point at a first end edge of the outer end edge of the packaging body in the front-rear direction in a first folded state in which the flap portion is folded to the skin-facing surface side of the main body portion, and is folded to the inner side of the packaging body with a second fold line extending in the width direction and located on a second end edge side opposite to the first end edge as a base point at a second folded state in which the flap portion is folded to the base point at the first fold line,

at least a part of the flap adhesive portion and the flap release sheet is disposed on the second end edge side with respect to the second fold,

a flap fixing portion for joining the packaging sheet and the flap release sheet to each other in a region where the packaging sheet and the flap release sheet face each other in a third folded state after being folded with the second fold line as a base point,

in the third folded state, the body fixing portion and the flap fixing portion overlap in a thickness direction.

2. The package of absorbent articles according to claim 1,

the main part fixed part reaches the fin fixed part is in the packing body with under the state that the first crease reaches the second crease is folded as the basic point, with the second crease with the central authorities on the fore-and-aft direction of first crease compare the configuration and be in first crease side.

3. The package of absorbent articles according to claim 1 or claim 2,

a pair of the wing pieces are provided on both sides of the body in the width direction,

the flap adhesive portions are provided on the pair of flap portions, respectively, and are separated from each other in a state where the flap portions are folded to the skin-facing surface side of the main body portion,

the flap release sheet covers the pair of flap adhesive portions,

the tab fixing portion overlaps with a region between the pair of tab bonding portions in the thickness direction.

4. The package of absorbent articles according to claim 3,

the length of the fin fixing portion in the width direction is longer than the length of the body fixing portion in the width direction.

5. The package of absorbent articles according to claim 3,

the length of the fin fixing portion in the width direction is shorter than the length of the body fixing portion in the width direction.

6. The package of absorbent articles according to claim 3,

the flap fixing portion is disposed apart from the flap bonding portion in the width direction in a region between the pair of flap bonding portions.

7. The package of absorbent articles according to claim 3,

the flap adhesive portion has a first flap adhesive portion and a second flap adhesive portion that is located more inward in the width direction than the first flap adhesive portion in an unfolded state of the absorbent article,

an edge of the second end edge side of the first flap adhesive is disposed on the second end edge side compared to an edge of the second end edge side of the second flap adhesive.

8. The package of absorbent articles according to claim 3,

the body fixing portion has a first body fixing portion disposed in a first region closer to the first end edge than the first fold.

9. The package of absorbent articles according to claim 8,

the body fixing portion has the first body fixing portion and a second body fixing portion, and the second body fixing portion is disposed in a second region between the first fold and the second fold in an unfolded state of the package.

10. The package of absorbent articles according to claim 9,

the first body fixing portion and the second body fixing portion are overlapped in the thickness direction in the third folded state.

11. A package for an absorbent article, in which the absorbent article is individually packaged by a packaging sheet,

the absorbent article has:

a main body portion having an absorbent core;

a pair of wing pieces extending outward in the width direction of the main body;

a pair of flap adhesion parts disposed on the non-skin-facing surface side of each of the flap parts and having an adhesive for fixing the main body part to underwear; and

a flap release sheet covering the pair of flap adhesive portions in a state in which the flap portion is folded to the skin-facing surface side of the main body portion,

the absorbent core has a low weight per unit area part of the absorbent core having a lower weight per unit area than the surroundings,

the low basis weight portion has a second side low basis weight region extending in the front-rear direction at a position closer to the second end edge than the second fold.

12. The package of absorbent articles according to claim 11,

the low basis weight portion has front and rear low basis weight regions parallel to the front and rear directions,

the front and rear low area weight regions are not provided in a region closer to the first end edge than the first fold in the expanded state.

13. The package of absorbent articles according to claim 12,

the front and rear low basis weight regions are not provided in a region between the first fold and the second fold in the expanded state.

14. The package of absorbent articles according to any one of claims 11 to 13,

the second side low basis weight region and the flap fixing portion are disposed on the first fold line side with respect to the center in the front-rear direction of the second fold line and the first fold line in the third folded state.

15. The package of absorbent articles according to any one of claims 11 to 13,

the low basis weight portion has a first side low basis weight region disposed on the first end edge side of the first fold in the developed state,

the region between the first fold and the flap fixing portion in the expanded state of the first side low basis weight region extends toward the outside in the width direction from the first fold side.

16. The package of absorbent articles according to any one of claims 11 to 13,

the package of the absorbent article has a main body release sheet that covers the main body adhesive section and is joined to the package sheet via a main body fixing section,

the body fixing portion is disposed in a region closer to the first end edge than the first fold in the expanded state,

the low basis weight portion has an intermediate low basis weight region located in a region between the first fold and the second fold in the expanded state.

17. The package of absorbent articles according to any one of claims 11 to 13,

the second side low-basis-weight region extends in the width direction in a region closer to the second edge than the flap fixing portion in the deployed state.

18. The package of absorbent articles according to claim 17,

a region between the flap fixing portion and the first fold in the unfolded state of the second side low area weight region extends in the width direction.

19. The package of absorbent articles according to claim 17,

the second side low area weight region reaches the outer edge of the absorbent core.

20. A package for an absorbent article, in which the absorbent article is individually packaged by a packaging sheet,

the absorbent article has:

a main body portion;

a pair of flap adhesive parts which are respectively arranged on the non-skin-facing sides of the flap parts and have an adhesive for fixing the flap parts to underwear; and

at least a part of the flap adhesive part and the flap release sheet is disposed on the second end edge side of the absorbent article with respect to the second fold,

the main body portion has: an absorbent core; a top sheet located on the skin-facing surface side of the absorbent core; and a standing leak-proof hem located on the skin-facing surface side of the top sheet,

the leakage-proof ruffle has: a contracted portion that rises by contraction of the leakage-preventing elastic member; and a base point portion serving as a base point from which the constricted portion rises,

the base point portion has a first base point portion located on the outer side in the width direction than the constricted portion,

the constricted portion has: a protruding portion that extends inward in the width direction from the first base point portion; and a folded portion folded to the outside in the width direction with an inner edge of the extension portion as a base point,

the folded-over portion has the leakage preventing elastic member and is configured to be capable of standing up with respect to the protruding portion in a flap region extending in the width direction from the flap portion,

the outer edge of the folded portion is disposed further outward in the width direction than the absorbent core.

21. The package of absorbent articles according to claim 20,

the inner edge of the first base point portion is disposed on the outer side in the width direction than the absorbent core in the flap region.

22. The package of absorbent articles according to claim 20 or claim 21,

the base point portion has a second base point portion located on the outer side in the front-rear direction than the constricted portion,

the inner edge of the second base point portion is arranged in a region overlapping with the absorbent core.

23. The package of absorbent articles according to claim 20,

the flap adhesive portion is separated in the width direction from a flap fold that folds the flap portion toward the skin-facing surface side of the main body portion.

24. The package of absorbent articles according to claim 20,

the tab fixing portion overlaps with an area between the pair of tab bonding portions in the thickness direction and is separated from the tab bonding portions.

25. The package of absorbent articles according to claim 20,

a leakage-proof joint portion that joins the folded portion and the projecting portion and a leakage-proof non-joint portion that is located on the outer side in the width direction than the leakage-proof joint portion and that overlaps the folded portion and the projecting portion without joining the folded portion and the projecting portion are provided in a region of the leakage-proof hem that overlaps the second base point portion,

the leakage-proof non-joint portion reaches the outer side edge of the fold-over portion.

26. The package of absorbent articles according to claim 25,

the outer edge of the leakage preventing joint is disposed further outward in the width direction than the outer edge of the absorbent core.

27. The package of absorbent articles according to claim 20,

the leakage preventing elastic member is disposed further outward in the width direction than the flap release sheet in the first folded state.

28. The package of absorbent articles according to claim 20,

in the unfolded state of the package, an area of the flap adhesive portion in a region inside of the width direction center of the flap portion is larger than an area of the flap adhesive portion in a region outside of the width direction center of the flap portion.

29. The package of absorbent articles according to claim 20,

in the absorbent core, a low basis weight portion having a lower basis weight of the absorbent material than that of the surrounding is provided in the flap region.

30. The package of absorbent articles according to claim 29, wherein,

the low basis weight portion overlaps with a region between the pair of flap adhesive portions in the thickness direction.

31. The package of absorbent articles according to claim 29 or claim 30,

the absorbent article has a main body adhesive section which is disposed on the non-skin-facing surface side of the main body section and has an adhesive for fixing the main body section to underwear,

the low basis weight portion is provided in a region not overlapping with the body bonding portion and the flap bonding portion in an unfolded state of the package.