WO2020235042A1 - Absorbent article - Google Patents

Abstract

An absorbent article according to one aspect of the present invention is provided with a front surface sheet, a back surface sheet, an absorbent body, and a displacement preventing material. The absorbent article has a longitudinal direction corresponding to the front-back direction of a wearer and a transverse direction perpendicular to the longitudinal direction. The absorbent body is disposed between the front surface sheet and the back surface sheet. The displacement preventing material is disposed on the back surface sheet and is positioned to overlap the absorbent body in a plan view. The absorbent body has a compressed region in at least one of a front end section or a back end section in the longitudinal direction which is formed by compressing the absorbent body in the thickness direction and which extends in the transverse direction. The displacement preventing material at least partially overlaps the compressed region in the transverse direction in a plan view.

Description

Absorbent article

The present invention relates to an absorbent article such as a sanitary napkin.

The napkin described in Patent Document 1 has a configuration in which an absorber is arranged between the top sheet and the back sheet. The back sheet is provided with a slip stopper for fixing the absorbent article to the wearer's shorts. A squeezed portion is provided on the entire surface of the absorber.

Japanese Unexamined Patent Publication No. 2018-102826

The absorbent article according to one embodiment of the present invention includes a front surface sheet, a back surface sheet, an absorber, and a slip stopper.
The absorbent article has a vertical direction corresponding to the front-back direction of the wearer and a horizontal direction orthogonal to the vertical direction.
The absorber is arranged between the front surface sheet and the back surface sheet.
The slip stopper is arranged on the back surface sheet and is positioned so as to overlap the absorber in a plan view.
The absorber has a squeezed region extending in the lateral direction formed by compressing the absorber in the thickness direction at at least one of the front end portion and the rear end portion in the vertical direction, and the slip stopper material. In plan view, at least a part of the compressed region overlaps with the lateral direction.

It is a top view of the absorbent article of embodiment of this invention seen from the side surface side of the skin. It is a top view of the absorbent article seen from the non-skin side surface side, and is the figure for demonstrating the positional relationship between the slip stopper and the squeezing area. It is sectional drawing of the intermediate region of the absorbent article cut along line III-III of FIG. It is sectional drawing of the part where the squeezing area exists in the front part of the absorbent article cut by line IV-IV of FIG. 1, and corresponds to the part where the lateral groove part of an absorbent core does not exist, and the vertical groove part is shown in the figure. Is omitted. It is a top view of the absorber provided by the absorbent article. It is a top view which shows the absorbable core which the absorber has. It is a partial cross-sectional view of the front region of the absorbent article cut along the line VII-VII of FIG. It is a partially enlarged plan view of the front end portion of the absorber. It is a top view of the absorbent article for demonstrating the position of the fragrance arrangement area in the absorbent article. It is the schematic which shows the manufacturing process of the said absorber. It is a top view which shows the package body of the said absorbent article, and is the figure which shows the structure before folding and after opening. It is a top view which shows the structure which folded the said package body. It is sectional drawing of the package of the absorbent article cut by the XIII-XIII line of FIG. FIG. 5 is a partially enlarged cross-sectional view of a front region of an absorbent article provided with a modified absorber. It is a top view of the absorbent article of another modification seen from the non-skin side surface side, and is the figure for demonstrating the positional relationship between the slip stopper and the squeezing area. It is a partial schematic plan view of the absorber for demonstrating the positional relationship between the squeezed region and the leakage-proof groove in the absorber of another modified example. It is a top view of the absorbent article of still another modification.

Detailed description of the invention

In the absorbent article, the absorbent article is likely to be turned over or twisted near the front and rear ends where the absorbent core does not exist, and the usability may be impaired. In particular, at the front and rear ends of the absorbent article, there is often no slip stopper for fixing the absorbent article to the wearer's shorts, and in the case of such a structure, at the front and rear ends of the absorbent article. Turns and twists are more likely to occur. When an external force is applied to the absorbent article for a long time, the front and rear ends are turned over and twisted to peel off the anti-slip material from the shorts, and the anti-slip material once separated from the shorts adheres to the shorts again. In the case of the absorbent article, the absorber may be deformed unfavorably in the intermediate region facing the excretory part of the wearer, which not only impairs the wearing feeling but also lowers the body fluid absorption performance than the design value. There is a possibility of becoming.

An object of the present invention relates to an absorbent article capable of sufficiently exhibiting absorption performance in a region facing the excretory part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<Napkin composition>
[Overall composition of napkin]
As shown in FIG. 1, the absorbent article 1 of the present embodiment includes a main body M and a pair of wing portions W. The absorbent article 1 is configured as a sanitary napkin and is hereinafter referred to as a napkin 1. The napkin 1 is configured to be able to be fixed to an outerwear (hereinafter, simply referred to as shorts) such as shorts of the wearer by an adhesive portion described later.
The napkin 1 has a vertical direction X corresponding to the front-rear direction of the wearer and a horizontal direction Y corresponding to the left-right direction of the wearer and orthogonal to the vertical direction X. Further, the napkin 1 has a thickness direction Z orthogonal to both the vertical direction X and the horizontal direction Y.

As shown in FIG. 1, the napkin 1 has a front region F, an intermediate region C, and a rear region R, which are sequentially located in the vertical direction. The intermediate region C is a region in the vertical direction X including a region facing the excretion portion mainly facing the excretion portion of the wearer when worn. In sanitary napkins, the excretory part is the vaginal opening. The anterior region F is an region in front of the intermediate region C and located ventral to the excretory portion of the wearer when worn. The posterior region R is an region behind the intermediate region C and located on the dorsal side of the wearer's excretory portion when worn.

The main body M extends along the vertical direction X and is fixed to the inner surface of the wearer's shorts when worn. The main body M has an absorber 11 described later, and has a function of absorbing liquid excrement such as menstrual blood of the wearer (hereinafter, may be referred to as a body fluid).
The pair of wing portions W are configured to face each other in the width direction with the main body M interposed therebetween in the intermediate region C so as to greatly project outward in the width direction.
The wing portion W is bent so as to face the main body M with the shorts sandwiched at the time of wearing, and is fixed to the outer surface of the wearer's shorts. The wing portion W prevents the napkin 1 from being displaced during wearing, and prevents the body fluid from leaking to the outside of the napkin 1. In a sanitary napkin provided with a wing portion W, it is desirable that the region in the vertical direction X sandwiched between the front and rear base portions of the wing portion W is the intermediate region C.

The napkin 1 includes an absorber 11, which has a leak-proof groove 19, a front squeezing region 2 and a rear squeezing region 4.
The leak-proof groove 19 is a pressing groove formed on the surface sheet 12 side of the main body M, which will be described later. The front squeezing region 2 and the rear squeezing region 4 are arranged at the lateral Y center portions of the front end portion 11a and the rear end portion 11b in the longitudinal direction X of the absorber 11, respectively, and the lateral ends of the absorber 11 in the lateral direction Y. It is arranged inside Y in the lateral direction from the edge. The configuration of the leak-proof groove 19, the front compression region 2 and the rear compression region 4 will be described later.

As shown in FIG. 3, the napkin 1 includes an absorber 11, a front surface sheet 12, a back surface sheet 13, a pair of side sheets 14, a main body slip stopper 151, and a wing slip stopper 18. In the main body M, the napkin 1 has a structure in which the back surface sheet 13, the absorber 11, and the front surface sheet 12 are laminated in the thickness direction Z. These configurations are appropriately joined and integrated by, for example, joining with an adhesive, heat seal, or the like, pressing with a leak-proof groove 19.
Further, the napkin 1 is provided with a fragrance arrangement region described later.

As shown in FIGS. 3 and 4, the absorber 11 extends along the vertical direction X and is arranged between the front surface sheet 12 and the back surface sheet 13. The absorber 11 absorbs the body fluid from the surface on the surface sheet 12 side and diffuses it inside to hold the body fluid. The absorber 11 has a skin side surface 11c located on the skin side of the wearer when worn, and a non-skin side surface 11d facing the skin side surface 11c and located on the shorts side. The configuration of the absorber 11 will be described later.

The surface sheet 12 is configured as a liquid-permeable sheet material, and is arranged above the thickness direction Z of the absorber 11.
The surface sheet 12 has, for example, a plurality of convex portions 12a projecting upward. The convex portion 12a may have a solid structure in which fibers are also distributed inside, or a hollow structure in which fibers are hardly present inside. The convex portion 12a can reduce the contact area between the wearer's skin and the surface sheet 12 when worn, enhance breathability, and reduce discomfort.

The back sheet 13 is arranged below the thickness direction Z of the absorber 11. The back surface sheet 13 is joined to the front surface sheet 12 and the side sheet 14 by, for example, an adhesive, a heat seal, or the like at the peripheral edge portion. The plane outer shape of the back sheet 13 constitutes the plane outer shape of the napkin 1. In FIGS. 1 and 2, the peripheral edge portion of the back surface sheet 13, that is, the region joined along the peripheral edge portion of the entire napkin 1 is referred to as a peripheral edge sealing portion 17, and is indicated by dots. As shown in FIG. 1, the peripheral edge sealing portion 17 is formed so as to extend in the lateral direction Y at each of the front end portion 1a and the rear end portion 1b of the napkin 1. The back sheet 13 may be bonded to the absorber 11 with an adhesive or the like.
The back surface sheet 13 is formed of, for example, a sheet material having functions such as poor liquid permeability, water vapor permeability, and water repellency. As the sheet material, for example, a film made of a thermoplastic resin, a laminate of the film and a non-woven fabric, or the like can be used.

As shown in FIG. 1, the pair of side sheets 14 are arranged on the peripheral surface of the napkin 1 in the lateral direction Y, and face each other in the lateral direction Y with the surface sheet 12 interposed therebetween. The side sheet 14 is joined to the surface sheet 12 in the lateral direction Y by an adhesive or the like. The material of the side sheet 14 is preferably a sheet material having a lower hydrophilicity than the surface sheet 12, specifically, a non-woven fabric having a lower hydrophilicity than the surface sheet, a film material, and a sheet having a laminated structure of the non-woven fabric and the film material. Can be mentioned.

(Composition of slip prevention material)
The slip stopper 151 for the main body and the slip stopper 18 for the wing are provided on the outer surface of the back sheet 13, and have a function of fixing the napkin 1 to the shorts.
Each slip stopper is formed, for example, by applying an adhesive to the back surface sheet 13 in a predetermined pattern. As the pressure-sensitive adhesive used for the pressure-sensitive adhesive portion, a rubber-based, olefin-based, ethylene-vinyl acetate (EVA) -based hot melt pressure-sensitive adhesive is preferably used.

As shown in FIG. 2, the two slip stoppers 151 and 151 for the main body are provided on the back sheet 13 of the main body M. The main body slip stopper group 15 is composed of the two main body slip stoppers 151 and 151. The two main body slip stoppers 151 and 151 extend in the vertical direction X, respectively, and are arranged apart from each other in the horizontal direction Y. Neither of the two main body slip stoppers 151 and 151 is located on the center line 33 extending in the vertical direction X that bisects the absorber 11 in the horizontal direction Y, and sandwiches the center line 33 in between. They are arranged so as to face each other in the lateral direction Y. When worn, the main body M is fixed to the skin side surface of the shorts by the slip stoppers 151 and 151 for the main body. A slip stopper non-arrangement region 152 is located between the pair of slip stoppers 15 for the main body.

As shown in FIG. 2, the wing slip stopper 18 is provided on the back sheet 13 of the wing portion W. When the napkin 1 is worn, the wing portion W located in the intermediate region C is bent and fixed to the outer surface of the shorts by the wing slip stopper 18.

(Construction of leak-proof groove)
The absorber 11 and the surface sheet 12 are provided with a leak-proof groove 19 formed by pressing from the surface sheet 12 side in the thickness direction Z. As shown in FIG. 3, the leak-proof groove 19 has a configuration in which the front surface sheet 12 and the absorbent core 20 are integrally recessed toward the back surface sheet 13. The leak-proof groove 19 is formed on the central side of the absorber 11 with respect to both side edges in the lateral direction Y. As shown in FIGS. 1 and 5, the leak-proof groove 19 is a squeeze groove formed on the peripheral edge of the main body M, and is arranged so as to surround the lateral Y central portion 31 of the absorber 11. The leak-proof groove 19 exists from the front region F to the rear region R, and as shown in FIG. 2, at least a part thereof overlaps with the slip stopper 151 for the main body in a plan view.

As shown in FIG. 1, the leak-proof groove 19 is a pair of leak-proof vertical portions extending in the vertical direction X extending to the front region F and the rear region R through a linear portion located in the intermediate region C in the vertical direction. It has grooves 19a, 19a and a pair of leak-proof lateral grooves 19b, 19b extending in the lateral direction Y. The leak-proof vertical groove 19a and the leak-proof horizontal groove 19b are connected to form one substantially oval shape. The leak-proof groove 19 is located along the peripheral edge of the absorber 11 so as to surround the high basis weight portion 24 described later.

The leak-proof flute 19a linearly extending in the vertical direction X is located over a part of the front region F, an intermediate region C which is a region facing the excretion portion, and a part of the rear region R.
In the leak-proof vertical groove 19a, "linearly extending in the vertical direction X" is not limited to a mode parallel to the vertical direction X. For example, as shown in FIG. 1, in a plan view, a portion extending in the vertical direction X as a whole can be expressed as "linearly extending in the vertical direction X" toward the center line 33 in the horizontal direction Y. When a pair of left and right line segments of an extending leak-proof groove converge at one point, the line segment can be distinguished as a leak-proof groove "extending in the lateral direction Y" described later.
The leak-proof flute 19a may be linear, curved, or meandering. Further, the leak-proof flute 19a may be continuous or interrupted, and may extend from the front to the rear as a whole.
As shown in FIG. 2, the leak-proof flute 19a overlaps with the slip stopper 151 for the main body in a plan view.

In the leak-proof lateral groove 19b, "extending in the lateral direction Y" is not limited to the aspect parallel to the lateral direction Y, but broadly includes the aspect extending from one side to the other side in the lateral direction Y. Therefore, the leak-proof lateral groove 19b may be linear, curved, or meandering in the absorber 11. The leak-proof lateral groove 19b is located on the central side of the lateral Y side edges of the front region F and the rear region R, respectively.
As shown in FIG. 2, a part of the leak-proof lateral groove 19b overlaps with the slip stopper 151 for the main body in a plan view.

The leak-proof groove 19 can be formed according to a conventional method by pressing with or without heat, or by embossing such as ultrasonic embossing. In the leak-proof groove 19, the surface sheet 12 and the absorber 11 are integrated by heat fusion or the like.
That is, the leak-proof groove 19 is consolidated as compared with the surrounding area. As a result, the leak-proof groove 19 draws the body fluid between the fibers compacted by the capillary phenomenon and diffuses the liquid in the longitudinal direction X, which is the extending direction, thereby preventing the liquid in the lateral direction Y from leaking. Has an action. By providing the leak-proof groove 19 in this way, it is possible to secure a dry feeling in the vicinity of the excretory portion of the wearer while ensuring leak-proof property.
Further, by providing the pair of leak-proof vertical grooves 19a and 19a, the absorber is provided with the pair of leak-proof vertical grooves 19a and 19a as the base points when an external force is applied from both legs of the wearer toward the inside in the lateral direction. 11 is easily deformed. As a result, it is easy to secure the region sandwiched by the pair of leakage- proof flutes 19a, 19a as an absorption surface for absorbing body fluid.

(Composition of fragrance placement area)
As shown in FIG. 9, the napkin 1 has a fragrance arrangement region K. The fragrance arrangement region K is arranged on the skin side surface 11c or the non-skin side surface 11d of the absorber 11, or between the surface sheet 12 and the absorber 11. The fragrance arrangement region K extends from the front end portion 11a of the absorber 11 to the rear end portion 11b along the vertical direction X and is arranged at the central portion in the horizontal direction Y, for example. In the example shown in FIG. 9, the fragrance arrangement region K is formed in a linear shape extending in the vertical direction X on the center line 33.
"The fragrance arrangement area K extends along the vertical direction X" is not limited to the mode in which the fragrance is continuously arranged along the vertical direction X, and the fragrance is arranged intermittently along the vertical direction X. Also includes aspects that have been used.
The central portion of the absorber 11 in the lateral direction Y is defined as three regions in the center of the lateral direction Y when the absorber 11 is divided into five equal parts in the lateral direction Y.

By using a fragrance, the odor derived from the liquid excreted is masked by the fragrance and released to the outside, making it difficult to recognize the odor derived from the liquid and reducing discomfort. The positional relationship between the fragrance arrangement area and the squeezing area will be described later.

[Construction of absorber]
As shown in FIG. 1, the absorber 11 has a front end portion 11a and a rear end portion 11b, and extends in the longitudinal direction X from the front end portion 11a toward the rear end portion 11b. The front end portion 11a is located in the front region F, and the rear end portion 11b is located in the rear region R.
As shown in FIGS. 3 and 4, the absorber 11 is arranged between the front surface sheet 12 and the back surface sheet 13. The absorber 11 is adhered to the surface sheet 12 on the skin side surface 11c with an adhesive (not shown) such as a hot melt adhesive.
The absorber 11 has an absorbent core 20 and a core wrap sheet 7.

(Structure of absorbent core)
The absorbent core 20 is a fiber aggregate obtained by stacking fiber materials such as pulp, and can be manufactured by using a fiber stacking device. Hydrophilic fibers are mainly used as the fiber material constituting the absorbent core 20. Examples of the hydrophilic fiber include those obtained by hydrophilizing an essentially hydrophobic fiber represented by a chemical fiber and an essentially hydrophilic fiber represented by wood pulp. The seeds can be used alone or in combination of two or more.
Further, the absorbent core 20 may further contain a water-absorbing polymer in addition to the fiber material. Thereby, the liquid holding power of the absorbent core 20 can be enhanced. The water-absorbent polymer may be generally spherical, lumpy, bale-shaped or amorphous. As the water-absorbent polymer, those that can be used in this kind of absorbent article can be used without particular limitation, and for example, a polymer or copolymer of acrylic acid or an alkali metal acrylate metal salt can be used.

As shown in FIGS. 3 and 4, the absorbent core 20 has a skin side surface 29a located on the skin surface side of the wearer and a non-skin side surface 29b located on the shorts side of the wearer.
As shown in FIG. 6, the absorbent core 20 has a front edge 20a and a trailing edge 20b in the longitudinal direction X, and extends in the longitudinal direction X from the front edge 20a toward the trailing edge 20b. The front edge 20a is located in the front region F and the rear edge 20b is located in the rear region R.
The front end edge 20a of the absorbent core 20 refers to an edge extending from one lateral Y-side edge toward the other lateral Y-side edge at the front end of the absorbent core 20 in the longitudinal direction X. Similarly, the trailing edge 20b of the absorbent core 20 has an edge extending from one lateral Y-side edge to the other lateral Y-side edge at the trailing edge of the vertical X of the absorbent core 20. Say. These edges are curved so as to bulge outward in the vertical direction X, for example, in the central portion of the horizontal direction Y.

As shown in FIG. 6, the absorbent core 20 has a front core portion 21, an intermediate core portion 22, and a rear core portion 23. The front core portion 21, the intermediate core portion 22, and the rear core portion 23 are arranged along the vertical direction X. The intermediate core portion 22 is a region mainly facing the excretion portion of the wearer, and the front core portion 21 and the rear core portion 23 are located in front of and behind the intermediate core portion 22, respectively. The intermediate core portion 22 substantially corresponds to the intermediate region C. The absorbent core 20 has a planar shape that is symmetrical in the lateral direction Y.

The absorbent core 20 has a plurality of flutes 25 extending along the longitudinal direction X and a plurality of lateral grooves 26 extending along the lateral direction Y. The absorbent core 20 is divided into a plurality of block portions 27 by a plurality of vertical groove portions 25 and a plurality of horizontal groove portions 26.
The vertical groove portion 25 and the horizontal groove portion 26 have a basis weight lower than that of the block portion 27, and are composed of grooves formed from the upper surface of the block portion 27 toward the lower side in the thickness direction Z. That is, the vertical groove portion 25 and the horizontal groove portion 26 are regions having lower rigidity than the block portion 27. As a result, when an external force is applied to the napkin 1, the absorbent core 20 is easily deformed in the vertical groove portion 25 and the horizontal groove portion 26, and is flexible against external forces in both the vertical direction X and the horizontal direction Y. It is composed of.

The block portion 27 has a high basis weight block portion 27A and a low basis weight block portion 27B. The high basis weight block portion 27A is a block portion having a higher basis weight than the low basis weight block portion 27B. The high basis weight block portion 27A is thicker in the thickness direction Z than the low basis weight block portion 27B. In FIG. 6, the high basis weight block portion 27A is indicated by dots, and the low basis weight block portion 27B is indicated by a solid color.

The area where the vertical groove portion 25 and the horizontal groove portion 26 located between the plurality of high basis weight block portions 27A and the adjacent high basis weight block portions 27A is referred to as the high basis weight portion 24. The high basis weight portion 24 is located at the lateral Y central portion 31 of the intermediate core portion 22. The high basis weight portion 24 extends in the vertical direction X, and for example, the front and rear end edges are formed in a curved shape that is convex toward the vertical direction X.

The region where the plurality of low basis weight block portions 27B and the vertical groove portion 25 and the horizontal groove portion 26 located around each low basis weight block portion 27B are formed is referred to as a low basis weight portion 28. The low basis weight portion 28 is located on both side portions 32, the front core portion 21, and the rear core portion 23 in the lateral direction Y of the intermediate core portion 22.

In the present embodiment, as shown in FIG. 3, the high basis weight portion 24 projects toward the surface sheet 12 side from the low basis weight portion 28. The high basis weight portion 24 may be configured to protrude toward the back surface sheet 13.
By providing the high basis weight portion 24 in the lateral Y central portion 31 of the intermediate core portion 22 of the absorbent core 20, it is possible to improve the fit of the intermediate core portion 22 to the excretory portion and the absorbability of body fluid.

In the napkin 1 of the present embodiment, the pair of wing portions W are arranged so as to face each other in the lateral direction Y with the intermediate core portion 22 interposed therebetween.
When the napkin 1 is worn, when the wing portion W located in the intermediate region C is fixed to the outer surface of the bent shorts, the high basis weight portion 24 is worn by the wearer due to the difference in rigidity between the high basis weight portion 24 and the low basis weight portion 28. It becomes easier to stand up to the excretion part side of. As a result, the intermediate core portion 22 can be easily fitted to the vicinity of the excretion portion of the wearer, the gap between the napkin 1 and the skin can be reduced, and liquid leakage can be suppressed.

In the absorber 11, the core wrap sheet 7 and the absorbent core 20 are squeezed and integrated in the front squeezing region 2, the rear squeezing region 4, and the leak-proof groove 19, but are squeezed in other regions. As shown in FIG. 3, the core wrap sheet 7 has a shape that does not follow the vertical groove portion 25 and the horizontal groove portion 26.
As a result, the body fluid that is absorbed by the absorbent core 20 via the surface sheet 12 and the core wrap sheet 7 and spreads in the vertical and horizontal directions along the vertical groove 25 and the horizontal groove 26 is a surface located on the skin side of the wearer. It becomes difficult to return to the sheet 12, and discomfort can be reduced.

(Composition of core wrap sheet)
The core wrap sheet 7 covers the absorbent core 20. The core wrap sheet 7 may be positioned so as to cover at least the skin side surface 29a of the absorbent core 20. In the present embodiment, one core wrap sheet 7 covers the entire absorbent core 20, and the core wrap sheet 7 covers both the skin side surface 29a and the non-skin side surface 29b.

For example, the core wrap sheet 7 has a substantially rectangular shape before coating, and as shown in FIGS. 3 and 4, the skin side surface 29a, the non-skin side surface 29b, and both side edges in the lateral direction Y of the absorbent core 20 are formed. When the absorbent core 20 is covered so as to cover it, the pair of opposing ends overlap each other and are arranged so as to be located on the non-skin side surface 29b side. The multilayer core wrap sheet region 37 on which two core wrap sheets 7 overlap on the non-skin side surface 29b side extends in the vertical direction X and is located at the central portion 31 of the absorber 11 in the horizontal direction Y.
Although the portion where the two core wrap sheets 7 are overlapped is located on the skin side surface 29a side, it may be located on the non-skin side surface 29b side.

In the napkin 1, the skin side surface 29a of the absorbent core 20 and the core wrap sheet 7 are not adhered to each other. However, both may be adhered by a plurality of adhesives extending in the vertical direction X and intermittently arranged in the horizontal direction Y between the two. This adhesive allows the water-absorbent polymer to be located on the skin side surface 29a side of the absorbent core 20. That is, during the production of the napkin 1, the water-absorbent polymer dispersed in the absorbent core 20 that is located on the skin side surface 29a side can be prevented from falling off to the back surface sheet 13 side by the adhesive. it can. Therefore, when the napkin 1 is used, even if the absorbent core 20 repeatedly absorbs the body fluid, the body fluid is efficiently absorbed by the water-absorbent polymer held so as to be located on the skin side surface 29a side by the adhesive, and the skin side surface 29a The liquid is less likely to stay on the side, and a dry feeling can be maintained for a long time.

As shown in FIG. 5, in the absorber 11, the core wrap sheet 7 has a front edge 7a and a trailing edge 7b in the longitudinal direction X, and extends in the longitudinal direction X from the front edge 7a toward the trailing edge 7b. .. The front edge 7a is located in the front region F and the rear edge 7b is located in the rear region R.
In the state of the absorber 11, the core wrap sheet 7 is formed in a curved shape in which the front end edge 7a and the rear end edge 7b are convex in the vertical direction X.

(Outline of the positional relationship between the absorbent core and the core wrap sheet)
In FIG. 5, the region where the absorbent core 20 is located is indicated by dots.
As shown in FIG. 5, in the absorber 11, in a plan view from the thickness direction Z, the front edge 7a and the trailing edge 7b of the core wrap sheet 7 are the front edge 20a and the trailing edge 20b of the absorbent core 20, respectively. It extends from each. The outer shape of the absorber 11 in a plan view matches the outer shape of the core wrap sheet 7.
In the front end portion 11a of the absorber 11, there is a region in which only the core wrap sheet 7 exists in a plan view and a region in which the core wrap sheet 7 and the absorbent core 20 are laminated. Similarly, in the rear end portion 11b of the absorber 11, there is a region in which only the core wrap sheet 7 exists in a plan view and a region in which the core wrap sheet 7 and the absorbent core 20 are laminated.
In the front end portion 11a (rear end portion 11b) of the absorber 11, the core wrap sheet 7 protrudes in the vertical direction X from the absorbent core 20 and extends, and the portion where only the core wrap sheet 7 exists is the front extending portion. It is referred to as 71 (rear extending portion 72). In FIG. 6, the plain area not filled with dots corresponds to the front extending portion 71 and the rear extending portion 72.
The front extending portion 71 and the rear extending portion 72 have a shape in which the length in the vertical direction X is long in the lateral Y central portion 31 and decreases from the lateral Y central portion 31 toward the lateral Y outward. have.

As shown in FIGS. 3 and 4, in the absorber 11, three core wrap sheets 7 are present in the multilayer core wrap sheet region 37. Two core wrap sheets 7 are present on the side portions located on both sides in the lateral direction Y with the multilayer core wrap sheet region 37 in between.

As shown in FIG. 7, at the front end portion 1a of the napkin 1, the front surface sheet 12 and the back surface sheet 13 extend in the vertical direction X from the absorber 11. Further, at the front end portion of the absorber 11, the core wrap sheet 7 extends beyond the absorbent core 20. The same applies to the rear end of the napkin 1.

(Composition of squeezed area)
As shown in FIG. 5, the absorber 11 has a front squeezing region 2 and a rear squeezing region 4 formed at the front end portion 11a and the rear end portion 11b, respectively. The front squeezing region 2 and the rear squeezing region 4 are arranged in the lateral Y central portion 31 of the absorber 11, and are arranged inside the lateral Y side edge of the absorber 11 in the lateral direction Y. Further, the anterior compression region 2 and the posterior compression region 4 exist only in the anterior region F and the posterior region R, respectively.
Since the squeezed region of the absorber 11 is partially provided in a plan view, the absorber 11 has a highly rigid region at the lateral Y central portion 31 of the front end portion 11a and the rear end portion 11b, and the absorber 11 has a high rigidity region. The entire 11 has flexibility, and the absorber 11 is easily deformed along the wearer's skin.
Further, since the anterior compression region 2 and the posterior compression region 4 are formed in the lateral Y central portion 31 of the absorber 11 and not in the bilateral portions 32, the front end portion 11a and the rear end portion of the absorber 11 are formed. Both side portions 32 of 11b have flexibility, and the absorber 11 is easily deformed along the wearer's skin.

As shown in FIG. 5, the anterior compression region 2 is formed up to the edge of the front end 11a of the absorber 11. The front squeezing region 2 is formed at the front end portion 11a so as to straddle both the front extending portion 71, which is a region of only the core wrap sheet 7, and the region where the core wrap sheet 7 and the absorbent core 20 overlap. ..
The posterior squeezed region 4 is formed up to the edge of the posterior end 11b of the absorber 11. The rear squeezing region 4 is formed at the rear end portion 11b so as to straddle both the rear extending portion 72 which is the region of only the core wrap sheet 7 and the region where the core wrap sheet 7 and the absorbent core 20 overlap. To.

As shown in FIG. 4, the anterior compression region 2 overlaps with the multilayer core wrap sheet region 37 in which three core wrap sheets are present in a plan view. Similarly, in the rear squeezing region 4, the rear squeezing region 4 overlaps with the multilayer core wrap sheet region 37 in which three core wrap sheets are present in a plan view.

Both the front squeezing region 2 and the rear squeezing region 4 are formed by squeezing the entire absorber 11 in which the absorbent core 20 is covered with the core wrap sheet 7 in the thickness direction Z.
In the front pressing region 2 and the rear pressing region 4, in the region where the core wrap sheet 7 and the absorbent core 20 overlap, the absorbent core 20 and the core wrap sheet 7 are integrated by the pressing process.
On the other hand, in the front extending portion 71 and the rear extending portion 72, which are regions of only the core wrap sheet 7, a plurality of core wrap sheets 7 are integrated by squeezing in the front pressing region 2 and the rear pressing region 4. .. A part of the anterior squeezing region 2 and a part of the posterior squeezing region 4 are formed in the lateral Y central portion 31 of the anterior extending portion 71 and the posterior extending portion 72, respectively, and are formed in both side portions 32. Absent. In the front extending portion 71 and the rear extending portion 72, three core wrap sheets 7 are squeezed in the multilayer core wrap sheet region 37, and two core wrap sheets 7 are squeezed in the other regions. The squeezed area is more rigid than the unsqueezed area.

The front squeezing region 2 is composed of a plurality of squeezing grooves 3 extending linearly in the vertical direction X and arranged apart from each other in the horizontal direction Y. The rear squeezing region 4 is composed of a plurality of squeezing grooves 5 extending linearly in the vertical direction X and arranged apart from each other in the horizontal direction Y. In the squeezing grooves 3 and 5, only the absorbent core 20 and the core wrap sheet 7 of the absorber 11 are integrally recessed, and the surface sheet 12 is not compressed. As shown in FIG. 4, the squeezing grooves 3 and 5 are compressed from the side surface of the skin downward in the Z-axis direction, and also from the non-skin side surface and upward in the Z-axis direction.
By forming the squeezed region by intermittently arranging the linear squeezed grooves in this way, it is possible to maintain the softness while making the squeezed region highly rigid.

The squeezing grooves 3 and 5 are linear grooves extending in the vertical direction X, respectively, extending from the side edge of the absorber 11 in the vertical direction X toward the intermediate region C.
The "linear" in the squeezing grooves 3 and 5 is not limited to a linear aspect in a plan view, and includes a curved aspect. Each line in the squeezing grooves 3 and 5 may be a continuous line or a broken line. For example, the squeezing grooves 3 and 5 may be formed by forming a large number of discontinuous recesses (for example, point embossing) in a row.
Further, in the present embodiment, the pressing groove is a linear groove extending in the vertical direction X, but the shape of the pressing groove is not limited to this. It may be a linear groove extending in the lateral direction Y. Further, the point-shaped pressing grooves may be arranged in a matrix to form a pressing region.

As shown in FIG. 5, the length b of the front compression region 2 in the longitudinal direction X is preferably longer than the length d of the rear compression region 4 in the longitudinal direction X.
In general, the rear region R of the napkin 1 is required to follow the wearer's skin more than the front region F because the buttocks are deformed when the wearer takes a sitting posture, for example. In the present embodiment, the length of the rear region 4 in the longitudinal direction X is made shorter than the length of the front region 2, so that the area of the highly rigid compression region in the rear region R is reduced, and the flexibility of the rear region R is reduced. Can be secured and easily deformed along the wearer's skin.

In the present embodiment, at the front and rear ends 11a and 11b of the absorber 11, there is a region where the core wrap sheet 7 and the absorbent core 20 are laminated, and a region only for the core wrap sheet 7. Since the absorbent core 20 does not exist in the region of only the core wrap sheet 7, the pulp density of the absorbent core 20 in the region of only the core wrap sheet 7 is 0. Therefore, in the absorber 11, the region of only the core wrap sheet 7 has a lower pulp density than the region in which the core wrap sheet 7 and the absorbent core 20 are laminated.
In the present embodiment, the pulp density is gradually lowered in the order of the leak-proof flute 19a, the region where the core wrap sheet 7 and the absorbent core 20 are laminated, and the region where only the core wrap sheet 7 is laminated. That is, the absorber 11 is configured such that the pulp density gradually decreases from the inside of the napkin 1 toward the front-rear-outside in the lateral Y-side portions 32 of the front region F and the rear region R, respectively. ing.
It is preferable that the material constituting the absorbent core 20 does not exist at all in the region of only the core wrap sheet 7, but it is inevitably present because the end portion of the absorbent core 20 in the vertical direction X is damaged. It does not preclude doing. In that case, for example, the material having the above composition may be present in an amount of 1% by mass or less, preferably 0.5% by mass or less, based on the total basis weight of the absorbent core 20.

As shown in FIG. 5, in the absorber 11, a front squeezing region 2 (rear squeezing region 4) is provided in the lateral Y central portion 31 of the anterior extending portion 71 (rear extending portion 72), and the lateral Y No squeezing area is provided on both sides 32. In the absorber 11, the length of the front extending portion 71 and the rear extending portion 72 in the vertical direction X is long in the lateral Y central portion 31 and from the lateral Y central portion 31 toward the lateral Y outward. It has a shortened shape.

[Positional relationship between the pressed area and the slip stopper for the main body]
As shown in FIG. 2, in the front region F and the rear region R of the absorber 11, the absorber 11 has a non-overlapping portion 40 that does not overlap with the slip stopper group 15 for the main body in the vertical direction X in a plan view. There is.
As shown in FIG. 2, the anterior compression region 2 and the posterior compression region 4 are located at the non-overlapping portion 40. The front pressing region 2 and the rear pressing region 4 do not overlap with the slip stopper group 15 for the main body, and are located apart from each other in the vertical direction X. The slip stopper 151 for the main body partially overlaps the front pressing region 2 and the rear pressing region 4 in the lateral direction Y in a plan view. In the present embodiment, the outermost portion of the main body slip stopper group 15 in the lateral direction Y is located outside the lateral Y of the front pressing region 2 and the rear pressing region 4 in the lateral direction Y. That is, when a pair of virtual lines 41, 41 extending parallel to the vertical direction X passing through each of the end portions in the horizontal direction Y of the main body slip prevention material group 15 is drawn, between the pair of virtual lines 41, 41. The anterior compression area 2 and the posterior compression area 4 are located inside. In the absorber 11, the front pressing region 2, the main body slip stopper group 15, and the rear pressing region 4 are sequentially located along the vertical direction X.

As shown in FIG. 2, the slip stopper 151 for the main body extends along the vertical direction X to a part of the front region F, an intermediate region C which is a region facing the excretion portion, and a part of the rear region R. It is present and is not located at the ends of the anterior-posterior regions F and R of the absorber 11.
In the napkin 1, the area where the main body slip stopper 151 is arranged is fixed to the shorts by the main body slip stopper 151 when worn, and the shape of the napkin 1 is not easily deformed. Since the anti-slip material is not arranged on the front portion and the rear portion of the napkin 1 including the non-overlapping portion 40 to which the anti-slip material 151 for the main body is not arranged, it is easy to perform the alignment operation when the napkin 1 is attached. Therefore, it is easy to peel off with a weak force during the attachment / detachment operation. On the other hand, due to the presence of the non-overlapping portion 40, twisting or curling at the front and rear ends of the napkin 1 is likely to occur due to the movement of the wearer, and when this becomes severe, the main body slip prevention material 151 is peeled off or peeled off from the shorts. When the body slip stopper 151 is reattached to the shorts, the intermediate region C of the napkin 1 may be twisted.

In the present invention, the non-overlapping portion 40 is provided with the front pressing region 2 and the rear pressing region 4, and further, the pair of slip stoppers 151 and 151 for the main body are provided with the front pressing region 2 and the rear pressing region 4 in the lateral direction Y. At least part of it overlaps.
As a result, in the absorber 11, the front end portion 11a and the rear end portion 11b become highly rigid due to the presence of the front pressing region 2 and the rear pressing region 4, and their shapes are easily maintained. In addition, since the pair of slip stoppers 151 and 151 for the main body partially overlap the front pressing region 2 and the rear pressing region 4 in the lateral direction, even if an external force is applied to the front and rear ends of the napkin 1, the front The movement of the squeezed region 2 and the posterior squeezed region 4 is suppressed. Therefore, in the napkin 1, it is easy to maintain the shapes of the front and rear end portions 11a and 11b, the occurrence of twisting and curling at the front and rear end portions 11a and 11b of the absorber 11 is suppressed, and by extension, in the intermediate region C of the napkin 1. The occurrence of undesired deformation such as twisting is suppressed.

In addition, since the front part and the rear part of the napkin are prevented from being twisted or rolled up, the slip stopper 151 for the main body is temporarily separated from the shorts, and then adheres to an unintended part of the shorts. It is unlikely to occur, a stable feeling of use is maintained from immediately after wearing the napkin to disposal, and the napkin 1 fixed to the shorts is easily peeled off, which is excellent in usability.

Further, by suppressing the occurrence of twisting and curling of the front and rear end portions 1a and 1b of the napkin 1, the front and rear end portions 1a and 1b of the napkin 1 are rolled up and absorbed by the napkin 1 by the front and rear end portions 1a and 1b. It is unlikely that excrement such as menstrual blood adheres and the front and rear ends 1a and 1b become dirty. As a result, when the wearer picks the end of the napkin 1 fixed to the shorts, peels it off, and disposes of it after use, the dirt on the end of the napkin 1 that serves as the picking part may stain the hand. Hateful.
As described above, the napkin 1 of the present embodiment can maintain the cleanliness of the front end portion 1a and the rear end portion 1b of the napkin 1 which is a picking portion at the time of disposal, and is easy to dispose of.

Further, in the napkin 1, only the absorber 11 is squeezed in the front squeezing region 2 and the rear squeezing region 4, and more specifically, the absorber 11 and the surface sheet 12 are not integrated by the squeezing step. It has become.
As a result, the force applied to the napkin 1 during wearing is buffered by the surface sheet 12 interposed between the wearer's skin and the front compression region 2 and the rear compression region 4, and the front end portion 11a and the rear end portion of the absorber 11 are buffered. It becomes difficult to transmit to 11b, and deformation of the front end portion 11a and the rear end portion 11b of the absorber 11 is further suppressed. Therefore, the deformation generated at the front end portion 11a (rear end portion 11b) of the absorber 11 propagates to the intermediate region C, and the deformation of the excretion portion facing region that absorbs a large amount of body fluid is suppressed. Therefore, the liquid absorbing area in the region facing the excretory portion can be maintained, and the napkin 1 having stable liquid absorbing property can be obtained.
Further, in the front squeezing region 2 and the rear squeezing region 4, since the surface sheet 12 is not squeezed, the front end portion 1a and the rear end portion 1b of the napkin 1 are more flexible than when the surface sheet is also squeezed. It can be made to have sex, the napkin 1 can be easily attached to the shorts, and the fit to the body is excellent.

Further, in the present embodiment, as shown in FIG. 2, the front pressing region 2 and the rear pressing region 4 are a pair parallel to the vertical direction X passing through the end end portion in the lateral direction Y of the main body slip prevention material group 15. It is located within the virtual lines 41 and 41 of. That is, in the front end portion 11a and the rear end portion 11b of the absorber 11, the lateral Y side side portions 32 are regions in which the front pressing region 2 and the rear pressing region 4 are not provided, and are regions having low rigidity. ..
The external force applied to the napkin 1 in the vertical direction X at the time of wearing is buffered by the lateral Y side portions 32 of the front end portion 11a and the rear end portion 11b of the absorber 11. This buffered external force extends from the lateral Y side portions 32 of each of the front end portion 11a and the rear end portion 11b to the excretion portion facing region due to the presence of the slip stopper 151 for the main body located inward in the vertical direction X. It's getting harder. Therefore, deformation of the region facing the excretory portion is suppressed, and a napkin 1 having more stable liquid absorption can be obtained.

Further, in the present embodiment, since the slip stopper 151 for the main body is not located on the center line 33, it is possible to further suppress the deformation of the lateral Y central portion 31 of the intermediate region C which is the region facing the excretion portion. it can.
That is, in the area facing the excretion part of the absorber 11, the external force from both legs of the wearer toward the inside of the lateral Y is buffered in the area 152 where the anti-slip material is not arranged, and the occurrence of twisting in the area facing the excretion part is suppressed.

Further, in the absorber 11, the front pressing region 2 and the rear pressing region 4 each overlap with the multilayer core wrap sheet region 37 in which three core wrap sheets are present in a plan view. In the front extending portion 71 and the rear extending portion 72, the multilayer core wrap sheet region 37 located at the lateral Y central portion 31 is larger in the thickness direction than the lateral Y both sides of the multilayer core wrap sheet region 37. Since the core wrap sheet 7 is present, the rigidity is high. The multi-layer core wrap sheet region 37 is further increased in rigidity by the pressing process in the front pressing region 2 and the rear pressing region 4.
As a result, the occurrence of breakage of the core wrap sheet 7 at the front end portion 11a and the rear end portion 11b of the absorber 11 is suppressed, and the occurrence of leakage of body fluid along the break line caused by the breakage of the core wrap sheet 7 is suppressed. ..
Further, when an external force is applied from both lateral Y side portions of the front end portion 11a and the rear end portion 11b of the absorber 11, the both side portions bend inward in the lateral direction Y, while the front pressing region 2 and the rear pressing region 2 and the rear pressing. Since the region 4 suppresses deformation due to an external force, the shape tends to be such that both side portions are upright with the lateral central portion 31 as the bottom. The shape makes it difficult for body fluids to leak from both sides of the front core portion 21 and the rear core portion 23. Further, as described above, when the anterior extending portion 71 is in the lateral Y center 31 and has a longer longitudinal length than both side portions as shown in FIG. 5, a relatively large amount of body fluid is temporarily held. The body fluid easily returns from the core wrap sheet 7 to the absorbent core 20 along the anteriorly compressed region 2, and the leakage of the body fluid can be further suppressed. This effect is the same at the rear end portion 11b.

[Positional relationship between squeezed area, leak-proof groove, slip stopper and high basis weight part]
As shown in FIG. 5, the leak-proof groove 19 is located so as to surround the high basis weight portion 24, and the two do not overlap in a plan view. In the absorber 11, the front squeezed region 2, the rear squeezed region 4, and the leak-proof groove 19 are portions having higher rigidity and less deformation than other unsqueezed regions.
As shown in FIG. 2, a part of the leak-proof groove 19 overlaps with the slip stopper 151 for the main body in a plan view, and the front pressing region 2 and the rear pressing region 4 are separated from the leak-proof groove 19. To position.

The region where the leak-proof groove 19 and the slip stopper 151 for the main body overlap has high rigidity, and by further providing the front pressing region 2 and the rear pressing region 4, the napkin 1 extends from the front to the rear. A region of high rigidity is located in the vertical direction X.
In the napkin 1, the shape of the napkin 1 can be easily maintained because the region having high rigidity is located in the vertical direction X from the front to the rear. Therefore, the absorption surface of the excretion facing region that absorbs the body fluid can be secured more stably. Further, since the shape of the excretion facing region is easily maintained, the unfavorable deformation of the napkin 1 is unlikely to occur, the generation of a gap between the napkin 1 and the wearer's skin due to the unfavorable deformation is suppressed, and the napkin 1 having excellent fit. Can be.
Further, even if the slip stopper may come off from the shorts due to the extremely violent movement of the wearer while wearing the napkin 1, the napkin 1 is caused by the high-rigidity region located in the vertical direction X described above. Since it is hard to be deformed and can be reattached to the shorts in a state where the deformation is suppressed, it is possible to suppress the occurrence of leakage of body fluid due to the reattachment in the deformed state.

Further, the front squeezing region 2 and the rear squeezing region 4 are respectively located apart from the leakage proof groove 19 in the vertical direction X, and in the absorber 11, the highly rigid front squeezing region, the leakage proof groove 19, and the leakage proof groove 19, respectively. The posterior squeezed region is not continuous in the longitudinal direction X and is located discontinuously.
As a result, the external force applied to the front end portion 11a (rear end portion 11b) of the absorber 11 is buffered in the low-rigidity non-squeezed region between the front compression region 2 (rear compression region 4) and the leak-proof groove 19. Therefore, it becomes difficult to transmit to the area surrounded by the leak-proof groove 19. Since the region surrounded by the leak-proof groove 19 substantially corresponds to the excretion portion facing region, undesired deformation of the excretion portion facing region is suppressed, and liquid leakage is suppressed.
Further, since the leak-proof lateral groove 19b located in the front (the leak-proof lateral groove 19b located in the rear) and the front compression region 2 (rear compression region 4) are separated from each other and are not continuously located, the absorber 11 The liquid excrement that is absorbed in the central portion 31 of the intermediate region C and spreads forward (rearly) through the leak-proof groove 19 is unlikely to spread to the front compression region 2 (rear compression region 4). Further, since the front squeezing region 2 (rear squeezing region 4) is a region that is not integrated with the surface sheet 12, the liquid that is squeezed and spreads along the leak-proof lateral groove 19b in which the surface sheet 12 is integrated is surfaced. It is difficult to spread to the front pressing region 2 and the rear pressing region 4 through the sheet 12, and liquid leakage in the front (rear) is suppressed.

Further, as shown in FIG. 8, in the front end portion 11a of the absorber 11, the lateral Y central portion rather than the distance D3 in the lateral Y lateral portion in the longitudinal direction X between the leak-proof lateral groove 19b and the front squeezing region 2. It is configured so that the interval D2 at is shorter. The same applies to the rear end portion 11b.
As a result, at the front end portion 11a of the absorber 11, the rigidity of the lateral Y central portion is higher than that of the lateral Y lateral portion, so that the occurrence of twisting at the lateral Y central portion 31 is further suppressed. Further, in the front end portion 11a of the absorber 11, the distance D3 between the squeezing region 2 and the leak-proof lateral groove 19b is wider in the lateral Y lateral portion 32 than in the central portion 31, so that the lateral Y lateral portion The generated twist is less likely to propagate to the area facing the excretion part, and the occurrence of undesired deformation in the area facing the excretion part is suppressed.

Further, in the present embodiment, since the high basis weight portion 24 and the low basis weight portion 28 are provided in the intermediate region C, the external force from both legs of the wearer toward the inside in the lateral direction Y is further reduced, and the area facing the excretion portion is further reduced. Deformation of the high basis weight portion 24, which occupies the main part of the above, is suppressed.
That is, in the intermediate region C, when the wearer's legs receive an external force toward the inside in the lateral direction Y, the low basis weight portion 28 having a lower rigidity than the high basis weight portion 24 is deformed first, and the central portion 31 The lateral external force received by the high basis weight portion 24 located in is reduced, and the deformation of the region facing the excretion portion is suppressed. Further, due to the deformation of the low basis weight portion 28, the high basis weight portion 24 moves so as to be in close contact with the excretion portion side. As a result, the high basis weight portion 24 can easily maintain a shape protruding to the excretion portion, its deformation is suppressed, and a region that absorbs a large amount of body fluid can be secured.

In FIG. 5, the length of the widest portion where the distance between the pair of side edge portions 24a in the lateral direction Y of the high basis weight portion 24 is the widest is defined as D1. A pair of virtual lines 66, 66 extending in parallel with the vertical direction X through the pair of side edge portions 24a defining the widest portion are drawn.
As shown in FIG. 5, the front squeezing region 2 (rear squeezing region 4) is located at the lateral Y central portion 31 of the front end portion 11a (rear end portion 11b) and is located between the pair of virtual lines 66, 66. doing.

By configuring the napkin 11 so that the anterior compression region 2, the posterior compression region 4 and the pair of side edge portions 24a are in a positional relationship as described above, the region where the wearer's excretory portion mainly faces when worn. The central portion 31 of the intermediate region C that absorbs a large amount of body fluid in the lateral direction Y is less likely to be deformed such as twisted even if an external force is applied to the napkin 11.

That is, the pair of side edge portions 24a extending in the linear vertical direction X of the high basis weight portion 24 are located in the intermediate region C which is the region facing the excretion portion. In the absorber 11, when the intermediate region C is worn, when an external force is applied from both legs of the wearer toward the inside in the lateral direction Y, the low basis weight portion 28 having a lower rigidity than the high basis weight portion 24 is deformed first. The lateral external force received by the high basis weight portion 24 located in the central portion 31 is reduced. Further, due to the deformation of the low basis weight portion 28, the high basis weight portion 24 moves so as to be in close contact with the excretion portion side. As a result, the high basis weight portion 24 can easily maintain a shape protruding to the excretion portion, and its deformation is suppressed. In this way, the pair of side edge portions 24a of the high basis weight portion 24 have a function of suppressing deformation of the central portion 31 of the absorber 11 in the lateral direction Y in the intermediate region C and securing a region that absorbs a large amount of body fluid. Have.
At this time, since the central portion 31 of the intermediate region C projects toward the excretion portion, the front region F and the rear region R of the absorber 11 are also deformed so as to protrude toward the skin side of the wearer. In the present embodiment, by providing a highly rigid front squeezing region 2 (rear squeezing region 4) in the lateral Y central portion 31 of the front end portion 11a (rear end portion 11b) of the absorber 11, both end portions 11a and 11b thereof are provided. Since the deformation of the absorber 11 is suppressed, the protruding shape in the central portion 31 of the intermediate region C of the absorber 11 can be easily maintained. Further, due to the presence of the anterior compression region 2 (rear compression region 4), even if an external force is applied to the front end 11a (rear end 11b) of the absorber 11 by the wearer's movement, the anterior compression region 2 (rear compression region 4) ) Is highly rigid and difficult to deform. As a result, the deformation generated at the front end portion 11a (rear end portion 11b) of the absorber 11 is transmitted to the intermediate region C, and the deformation of the lateral Y central portion 31 of the intermediate region C is suppressed.
Therefore, by providing the pair of side edge portions 24a, the front squeezing region 2 and the rear squeezing region 4, they are sandwiched between the pair of side edge portions 24a in a plan view and are sandwiched between the front squeezing region 2 and the rear squeezing region 4. Deformation of the lateral Y central portion 31 of the intermediate region C in which a large amount of body fluid is retained is suppressed. As a result, a region for absorbing the body fluid of the absorber 11 can be secured in a wide area, and liquid leakage is suppressed.

Further, as described above, by providing the high basis weight portion 24, when the wing portion W is fixed to the outer surface of the bent shorts, the high basis weight portion 24 can easily stand up toward the excretion portion side of the wearer. In the present embodiment, by providing the front compression region 2 and the rear compression region 4, the front portion and the rear portion of the absorber 11 are less likely to be deformed due to the high rigidity of these compression regions. Therefore, the napkin 11 is attached to the shorts. At this time, it is suppressed that the wing portion W is bent more than necessary and attached to the shorts. As a result, it is possible to secure a large area facing the excretion part that absorbs the body fluid.

Further, in the present embodiment, a pair of leak-proof vertical grooves 19a and 19a are provided outside the high basis weight portion 24 in the lateral direction Y with the high basis weight portion 24 in between, whereby the high basis weight portion is further increased. Deformation of the portion 24 is further suppressed.
That is, in the intermediate core portion 22 of the absorber 11, a region having a lower rigidity than the leak-proof vertical groove 19a exists between the side edge portion in the lateral direction Y and the leak-proof vertical groove 19a. In addition, between the leak-proof vertical groove 19a and the high basis weight portion 24, there is a region having a lower rigidity than the leak-proof vertical groove 19a and the high basis weight portion 24. Therefore, the external force toward the inside in the lateral direction Y is gradually reduced in these low-rigidity regions, and the deformation of the high basis weight portion 24 is further suppressed.

Further, in the present embodiment, in the absorber 11, a leak-proof lateral groove 19b is located between the front compression region 2 (rear compression region 4) and the high basis weight portion 24, and the front compression region 2 (rear compression region 4) is located. ) And the leak-proof lateral groove 19b do not overlap in a plan view.
As a result, there is a region between the front compression region 2 (rear compression region 4) and the leak-proof lateral groove 19b, which is less rigid than the front compression region 2 (rear compression region 4) and the leakage-proof lateral groove 19b. .. In addition, between the leak-proof lateral groove 19b and the high basis weight portion 24, there is a region having a lower rigidity than the leak-proof lateral groove 19b and the high basis weight portion 24. Therefore, the external force toward the inside of the vertical direction X is gradually reduced in these low-rigidity regions, and the deformation of the high basis weight portion 24 is further suppressed.

With reference to FIG. 5, the length a in the lateral direction Y of the front pressing region 2 and the length c in the lateral direction Y of the rear pressing region 4 are the lengths of the widest portion of the high basis weight portion 24 in the lateral direction Y. It is preferably D1 or more.
By setting the length of the squeezed region in the lateral direction Y to D1 or more, the squeezed region is formed in the front end portion 11a and the rear end portion 11b of the absorber 11 over the entire lateral direction Y between the pair of virtual lines 66 and 66. It exists, and the deformation of the lateral Y central portion 31 of the intermediate region C of the absorber 11 located between the pair of virtual lines 66 and 66 is more reliably suppressed.
Further, by setting the length of the squeezed region in the lateral direction Y to D1 or more, when the napkin 1 having the wing portion W is attached to the shorts, the wing portion W is bent more than necessary and attached to the shorts. It is more suppressed, and the deformation of the central portion 31 of the intermediate region C of the absorber 11 is further suppressed.

Further, it is more preferable that the lengths a and c of the front compression region 2 and the rear compression region 4 in the lateral direction Y be equal to or less than the length of the widest portion of the pair of leak-proof vertical grooves 19a and 19a in the lateral direction Y. .. As a result, when an external force is applied from both legs of the wearer toward the inside in the lateral direction, the absorber 11 is easily deformed with the pair of leak-proof vertical grooves 19a and 19a as base points, and is located at the central portion 31. The lateral external force received by the high basis weight portion 24 is reduced more efficiently.
Further, by setting the lengths a and c of the front compression region 2 and the rear compression region 4 in the lateral direction Y to be equal to or less than the length of the widest portion of the pair of leak-proof vertical grooves 19a in the lateral direction Y, the absorber 11 is provided. At the front end portion 11a and the rear end portion 11b, there are low-rigidity regions in which the squeezed region is not formed on both sides in the lateral direction Y, and the region is easily deformed along the shape of the wearer's body when worn. , Liquid leakage is suppressed.

[Positional relationship between the absorbent core and core wrap sheet at the front and rear ends of the absorber and the pressed area]
As described above, as shown in FIG. 5, the front squeezing region 2 (rear squeezing region 4) is the anterior extending portion 71 (the region of only the core wrap sheet 7) in the front end portion 11a (rear end portion 11b). It is formed so as to straddle both the rear extending portion 72) and the region where the core wrap sheet 7 and the absorbent core 20 overlap.
As described above, in the lateral Y central portion 31 of the anterior extending portion 71 and the posterior extending portion 72 of the absorber 11, a plurality of laminated core wrap sheets 7 are squeezed by the anterior squeezing region 2 and the posterior squeezing region 4. Since it is lightly integrated by processing, curling and twisting of the core wrap sheet 7 are suppressed.
Further, since the front compression region 2 and the rear compression region 4 are also provided in the region where the core wrap sheet 7 and the absorbent core 20 overlap, the front end portion 11a and the rear end portion 11b of the absorber 11 are partially covered. It can be made highly rigid by the squeezed area. As a result, the occurrence of curling and twisting of the front and rear ends of the absorber 11 is suppressed.

Further, as shown in FIG. 5, the front extending portion 71 and the rear extending portion 72, which are regions of only the core wrap sheet 7, are present over the entire width of the absorber 11 in the lateral direction Y.
As a result, at the front end portion 11a and the rear end portion 11b of the absorber 11, the external force applied to the lateral Y of the absorber 1 is buffered by the front extending portion 71 and the rear extending portion 72, so that the absorbing core 20 has. The propagating external force can be reduced. In addition to this, the front extending portion 71 and the rear extending portion 72 are provided with the front pressing region 2 and the rear pressing region 4 in the lateral Y central portion, so that twisting is less likely to occur even when an external force is applied. ing.

Further, as described above, in the absorber 11, the pulp density of the absorber 11 gradually decreases from the inside of the napkin 1 toward the front-rear-outside in the lateral Y side portions 32 of the front region F and the rear region R, respectively. It is configured to go.

By providing the leak-proof flute 19a as described above, the body fluid absorbed in the intermediate region C, which is the facing region of the wearer's excretion portion, is diffused in the front-rear direction, which is the extending direction of the leak-proof flute 19a. To. A core wrap sheet and an absorbent core located in the vicinity of the leak-proof vertical groove 19a and outside the region surrounded by the leak-proof groove 19 in the lateral Y side portions 32 of the front region F and the rear region R, respectively. Since the pulp density of the region where is laminated is much lower than that of the leak-proof flute 19a, the region where the core wrap sheet and the absorbent core located in the vicinity of the leak-proof flute 19a to the leak-proof flute 19a are laminated. Body fluid is difficult to induce.
However, in the portion where the distance between the pair of leak- proof flutes 19a and 19a begins to narrow from the widest portion, the body fluid diffused from the intermediate region C, which is the opposite region of the excretory portion, is diffused as it is in the vertical direction X. It's easier. In that case, there is an increased risk that the body fluid diffused in the plane direction leaks from the edge of the absorber. In response to such a problem, in the present embodiment, further, by providing a region of only the core wrap sheet 7 having a lower pulp density in the lateral Y side portions 32 of the front and rear end portions 11a and 11b of the absorber 11. It is difficult for body fluid to be guided from the region where the core wrap sheet 7 and the absorbent core 20 located in the vicinity of the leak-proof flute 19a are laminated to the region of only the core wrap sheet 7.
As described above, in the napkin 1, the pulp density of the absorber 11 decreases from the inside of the napkin 1 toward the front, rear, and outside in the lateral Y side portions 32 of the front region F and the rear region R of the absorber 11. Since it is configured to move, the movement of body fluid from low density to high density is suppressed. Therefore, the body fluid diffused forward and backward by the leak-proof groove 19 is less likely to be diffused to the front- rear end portions 1a and 1b of the napkin 1, and the liquid leakage from the front- rear end portions 1a and 1b of the napkin 1 is suppressed.

[Positional relationship between the pressed area and the peripheral seal]
As shown in FIG. 1, at the front end portion 1a (rear end portion 1b) of the napkin 1 in the vertical direction X, the peripheral edge seal portion 17 and the front pressing region 2 (rear pressing region 4) are separated from each other in a plan view.
The peripheral edge seal portion 17 is a region having high rigidity, and the presence of the peripheral edge seal portion 17 suppresses twisting of the front and rear end portions 1a and 1b of the napkin 1. Further, in the front end portion 1a (rear end portion 1b) of the napkin 1, when an excessive external force is applied to the napkin 1 and the entire peripheral edge seal portion 17 moves inward in the vertical direction X, the front pressing region 2 (rear pressing). By arranging the region 4) and the peripheral seal portion 17 apart from each other, the region between the front compression region 2 (rear compression region 4) and the peripheral seal portion 17 serves as a buffer region to reduce the external force and excrete portion. It becomes difficult to propagate to the opposite region. As a result, undesired deformation of the region facing the excretory portion can be suppressed.

[Positional relationship between the pressed area and the fragrance placement area]
As shown in FIG. 9, the fragrance arrangement region K, the front pressing region 2, and the rear pressing region 4 are arranged so that at least a part thereof overlaps in a plan view seen from the thickness direction Z. In the example shown in FIG. 9, the front end portion of the fragrance arrangement region K overlaps with the front pressing region 2 in a plan view, and the rear end portion of the fragrance arrangement region K overlaps with the rear pressing region 4 in a plan view.

The fragrance is applied to, for example, the core wrap sheet 7. As a result, the fragrance is easily released to the outside through the front pressing region 2 and the rear pressing region 4. The fragrance may be applied to the skin side surface 11c of the core wrap sheet 7 or may be applied to the non-skin side surface 11d.

The fragrance arrangement region K may overlap a part of at least one squeezing groove 3 or 5 in each of the front squeezing region 2 and the rear squeezing region 4. That is, the fragrance arrangement region K may extend so as to overlap with at least a part of the pressing grooves 3 and 5 in the vertical direction X, and may extend at least a part of the groove width of at least one pressing groove in the horizontal direction Y. It suffices if they overlap.

Here, the absorber 11 evaporates and emits vapor when the liquid excrement held by the absorber 11 is warmed by the wearer's body temperature or the like during wearing. In the napkin 1, this vapor is diffused forward or backward through the concave front squeezing region 2 and the rear squeezing region 4 without being completely blocked by the front surface sheet 12 and the back surface sheet 13. Further, the anterior compression region 2 and the posterior compression region 4 extend to at least one of the front end edge 20a and the rear end edge 20b of the absorbent core 20 having a relatively large basis weight. As a result, the steam passage is opened to the outside at at least one of the front end edge 20a and the rear end edge 20b, and the steam diffused in the front pressing region 2 and the rear pressing region 4 is easily released to the outside. Therefore, the air permeability is improved and the stuffiness caused by the body fluid is reduced.
Further, the perfume arranged in the perfume arrangement region K, together with the excrement-derived vapor held in the absorber 11, passes through the anterior compression region 2 and the posterior compression region 4 and at least one of the front edge 20a or the trailing edge 20b. Is released to the outside of the napkin 1. Therefore, the odor derived from the excreted excrement is sufficiently masked by the fragrance and released to the outside, the odor derived from the excrement becomes difficult to be recognized, and the discomfort during wearing can be reduced.

Further, since the absorber 11 is formed by compressing the absorber 11 in the thickness direction Z, the front compression region 2 and the rear compression region 4 are not easily crushed by an external force from the thickness direction Z. As a result, even when worn, which is easily affected by an external force from the thickness direction Z due to sitting pressure or the like, the air permeability of the front pressing region 2 and the rear pressing region 4 can be easily ensured.
Further, it is preferable that there is a gap in which no adhesive is present between the fragrance arrangement region K arranged in the absorber 11 and the surface sheet 12. As a result, the fragrance is easily diffused through the gap between the surface sheet 12 and the absorber 10, reaches the front pressing region 2 and the rear pressing region 4 formed in the absorber 11, and is easily released to the outside. Become.

<Manufacturing method of absorber>
Next, a method for producing the absorber 11 will be described.
The above-mentioned absorbent core 20 which is divided into blocks by a plurality of grooves and has an uneven structure can be manufactured, for example, by using a fiber stacking device provided with a fiber stacking drum having a recess for accumulation on the outer peripheral surface. In the fiber stacking device, the core material is deposited in the accumulation recess by supplying the core material such as pulp fiber to the outer peripheral surface of the fiber stacking drum. An absorbent core can be obtained by releasing the deposited fiber from the accumulation recess.

As shown in FIG. 10, a plurality of absorbent cores 20 manufactured by using a fiber stacking device are separated from each other to form an absorber continuum 35 covered with one core wrap sheet 7. In the absorber continuum 35, there is a region in which only the core wrap sheet 7 exists between the absorbent cores 20 arranged adjacent to each other. The absorber 11 is manufactured by cutting and removing the core wrap sheet 7 located between the adjacent absorbent cores 20 of the absorber continuum 35 into a predetermined shape with a cutter (not shown). The absorber continuum 35 is cut by inserting a cutter along the thickness direction Z thereof.

In the absorber 11 produced by cutting only the core wrap sheet 7 of the absorber continuum 35 in this way, as shown in FIG. 5, the front end edge 7a (rear end edge 7b) of the core wrap sheet 7 is absorbent. It has a shape that protrudes forward (rear) from the front end edge 20a (rear end edge 20b) of the core 20 and extends.
Further, since only the core wrap sheet 7 of the absorber continuous body 35 is cut to manufacture the absorber 11, no force in the thickness direction due to the insertion of the cutter is applied to the absorbent core 20 at the time of cutting. Therefore, as shown in FIG. 7, in the absorber 11, the front end edge 20a of the absorbent core 20 is not consolidated and the front end edge is not hardened. The same applies to the trailing edge 20b of the absorbent core 20.

As in the absorber 11 shown in FIG. 14, only the core wrap sheet 7 is cut so that the front edge 20a of the absorbent core 20 and the front edge 7a of the core wrap sheet 7 are substantially flush with each other. The continuum 35 may be divided. By cutting only the core wrap sheet 7, the front and rear edge of the absorbent core 20 is not compacted and the front edge is not hardened. The same applies to the trailing edge 20b of the absorbent core 20. The napkin 1 having the form shown in FIG. 14 is a napkin in which the absorbent core and the core wrap sheet have the same shape in a plan view.

As described above, the absorbent core 20 is configured so that the front-rear edge of the absorber is not compacted and the front-rear edge is not hardened by the cutting step of the absorber continuum. The edge portion has the same thickness and the same pulp density as the low basis weight block portion 27B located inside the absorbent core 20, and has the same pulp voids. Therefore, the front and rear edge edges of the absorbent core 20 of the present embodiment have more pulp voids as compared with the compacted configuration, can hold more body fluid, and suppress liquid leakage. To.
Note that the same thickness includes an error range of ± 1.5 mm. The same pulp density includes an error range of ± 0.03 g / cm ³ .

<Structure of packaging>
Next, the package in which the above-mentioned napkin 1 is folded will be described.
[Package composition]
In the packaging body 10 shown in FIGS. 11, 12 and 13, the above-mentioned napkin 1 is folded in the vertical direction X together with the exterior material 16 along two folding lines L1 and L2 (see FIG. 1) extending in the horizontal direction Y, and individually. It is packaged in. Note that FIG. 11 shows a package 10 in which the napkin 1 is stretched on an XY plane before folding and after opening.

As shown in FIGS. 12 and 13, in the package 10, the napkin 1 is in a folded state, and the front end portion and the rear end portion in the vertical direction X overlap each other.
In the following description of the package, when the napkin 1 is arranged on a flat surface with this overlapping portion as the upper side, the squeezed region arranged at the end of the napkin 1 located below is referred to as a first squeezed region and is located above. The squeezed area arranged at the end of the napkin 1 is referred to as a second squeezed area.
In the present embodiment, the end of the napkin 1 on the side where the front squeezing region 2 is arranged is located above, so that the front squeezing region 2 is referred to as the second squeezing region 2 in the description of the package 10. May be explained. Further, since the end portion of the napkin 1 on the side where the rear squeezing region 4 is arranged is located below, in the description of the package 10, the rear squeezing region 4 may be referred to as the first squeezing region 4. There is.
Even if the package 10 is configured so that the end on the side where the front pressing region 2 of the napkin 1 is arranged is located below and the end on the side where the rear pressing region 4 is arranged is located above. Good.

The exterior material 16 is a sheet material that forms the outer surface of the package 10. In the example shown in FIG. 11, a rectangular shape that is larger than the area of the napkin 1 and long in the vertical direction X in a plan view seen from the thickness direction Z. It is composed of.
As the exterior material 16, various materials conventionally used as the exterior material of the absorbent article can be used without particular limitation, and for example, a resin film, a non-woven fabric, paper, or the like can be used. Such an exterior material 16 is generally less rigid than the absorber 11, and can be easily bent into a shape along the napkin 1.
Hereinafter, the process of folding the napkin 1 together with the exterior material 16 as shown in FIGS. 12 and 13 will be described.

First, as shown in FIG. 11, the napkin 1 is removably arranged in the substantially center of the exterior material 16 via a slip stopper. As a result, a laminated body of the napkin 1 and the exterior material 16 is obtained. At this time, it is preferable that the pair of wing portions W of the napkin 1 are bent toward the surface sheet 12 side (skin side surface side) along both side portions along the vertical direction X of the main body M. Further, when the anti-slip material is formed on the wing portion W, it is preferable that the anti-slip material of the bent wing portion W is covered with the release sheet.

As shown in FIG. 11, in the laminated body of the napkin 1 and the exterior material 16, the first fold line L1 arranged on the rear side of the napkin 1 and the second fold line L2 arranged on the front side of the napkin 1 And are placed. More specifically, the first folding line L1 is arranged behind the wing portion W (on the back side of the wearer). The second fold line L2 is arranged in front of the wing portion W (ventral side of the wearer). The first fold line L1 and the second fold line L2 are virtual lines that serve as folding axes when the package 10 is folded.

The package 10 is divided by a first fold line L1 and includes a first fold region R1 including the rear end portion 11b of the absorber 11, and a second fold region R1 is partitioned by a second fold line L2 and includes a front end portion 11a of the absorber 11. It includes a region R2 and a third fold region R3 located between the first fold region R1 and the second fold region R2. In the present embodiment, the rear end portion 11b is also the "vertical direction X one end portion", and the front end portion 11a is also the "vertical direction X other end portion".
The first folding region R1 is an region of the napkin 1 including a rear region located on the dorsal side of the wearer's excretory portion when worn. The second folded region R2 is an region of the napkin 1 including an anterior region located ventral to the wearer's excretory portion when worn. The third folding region R3 is an region of the napkin 1 including an excretion portion facing region facing the wearer's excretion portion when worn.

The outermost end of the first folding region R1 in the vertical direction X is referred to as the first vertical end E11. The first vertical end portion E11 is composed of the exterior material 16 in the example of FIG. 11, but when the napkin 1 protrudes from the exterior material 16, it may be composed of the rear end portion of the napkin 1.
Similarly, the outermost end of the second folding region R2 in the vertical direction X is referred to as the second vertical end E21. The second longitudinal end E21 is typically composed of an exterior material 16.

From the state shown in FIG. 11, the first folding area R1 is folded on the third folding area R3 with the first folding line L1 as the folding axis. Specifically, the surface sheet 12 of the first folding region R1 is superposed on the surface sheet 12 of the third folding region R3.

Next, the second folding area R2 is folded so as to be further folded on the first folding area R1 folded on the third folding area R3 with the second folding line L2 as the folding axis. Specifically, the surface sheet 12 of the second folding region R2 is superposed on the exterior material 16 of the first folding region R1. As a result, the napkin 1 is folded in three in the vertical direction X to form the package 10 shown in FIGS. 12 and 13.

As shown in FIG. 13, the package 10 has a configuration in which the third folding region R3, the first folding region R1 and the second folding region R2 are laminated in this order. The outer surface of the package 10 is covered with the exterior material 16. The upper surface of the package 10 is composed of an exterior material 16 of the second folding region R2 and an exterior material 16 of the first folding region R1 exposed from the second folding region R2. The lower surface of the package 10 is composed of the exterior material 16 of the third folding region R3.

As shown in FIGS. 12 and 13, the end portion of the package 10 bent by the first folding line L1 between the first folding region R1 and the third folding region R3 in the vertical direction X is the first folding end portion. It is called RE1. The end portion of the package 10 folded by the second folding line L2 between the second folding region R2 and the third folding region R3 in the vertical direction X is referred to as a second folding end portion RE2.
The "upper" in the package 10 means the side on which the second folding region R2 is arranged in the thickness direction Z, and the "lower" in the packaging 10 means the side in which the third folding region R3 is arranged in the thickness direction Z. Refers to the side to be done.

Further, the package 10 has a tab tape T and a side sealing portion S as a configuration for maintaining the folded shape.
As shown in FIG. 12, the side sealing portion S is formed on the side edge of the exterior material 16 extending outward from the napkin 1 in the lateral direction Y, and is joined by a known joining method such as heat embossing. Will be done.
The tab tape T seals the second vertical end portion E21 of the second folding region R2 and the exterior material 16 of the first folding region R1.

As shown in FIG. 12, the tab tape T has a fixing portion T1 and a protruding portion T2.
The fixing portion T1 is fixed to the exterior material 16 of the second folding region R2. The fixing portion T1 is fixed to the second longitudinal end portion E21 with, for example, a hot melt adhesive.
The protruding portion T2 projects outward from the fixed portion T1 to the second folding region R2, and is detachably adhered to the exterior material 16 of the first folding region R1. The protruding portion T2 includes an adhesive region T3 including an adhesive surface and a non-adhesive region T4 having no adhesiveness. An adhesive is applied to the adhesive surface of the adhesive region T3. The non-adhesive region T4 constitutes a free end portion of the protruding portion T2, and for example, the adhesive surfaces are folded over and have no adhesive surface on the outer surface. In the package 10, the non-adhesive region T4 stays inside the first folding region R1 in the vertical direction X with respect to the boundary side end with the third folding region R3, and the tab tape T is rolled up during storage. Problems such as opening the package without permission are suppressed.

When the package 10 is opened, the tab tape T is lifted upward by the user of the napkin 1 having the protruding portion T2 picked. Along with this, the second vertical end portion E21 to which the tab tape T is fixed is also rolled up. As a result, when tension is applied to the exterior material 16 from the fixed portion T1 of the lifted tab tape T toward the side sealing portion S, the sealing of the side sealing portion S cannot be maintained. The side sealing portion S on the second vertical end portion E21 side is opened. Then, by opening the second folding region R2 in the vertical direction X with the second folding line L2 as the axis, the side sealing portion S sequentially moves from the second vertical end portion E21 side toward the second folding end portion RE2. It is opened and the second folding area R2 side is opened.
After that, the first vertical end portion E11 is lifted upward by the user, and the first folding region R1 is opened in the vertical direction X with the first folding line L1 as the axis, whereby the entire package 10 is opened. It becomes the aspect shown in 11.

In the package 10, the positional relationship between the tab tape T and the first squeezing area 4 and the second squeezing area 2 is defined as follows, so that the user can more easily pick the tab tape T at the time of opening, which is convenient at the time of opening. The sex can be improved.

[Positional relationship between the first and second squeezed areas and the tab tape]
As shown in FIGS. 12 and 13, at least one of the first squeezed region 4 and the second squeezed region 2 is the opening auxiliary squeezed region P, and the fixed portion T1 is viewed from the thickness direction Z of the package 10. It overlaps with or is located near.
In the examples shown in FIGS. 12 and 13, the first squeezing region 4 is located in the vicinity of the fixing portion T1 as the opening auxiliary squeezing region P in a plan view seen from the thickness direction Z of the package 10. The opening auxiliary pressing region P may be both the first pressing region 4 and the second pressing region 2.

"The opening auxiliary pressing region P overlaps with the fixed portion T1 in the plan view from the thickness direction Z of the package 10" means that the opening auxiliary pressing region P and the fixed portion T1 overlap at least a part in the plan view. To say that you are.
Further, "the opening auxiliary pressing area P is located in the vicinity of the fixed portion T1 in the plan view" means that the distance between the fixed portion T1 and the opening auxiliary pressing area P in the plan view is 25 mm. It means to be located within. As a result, when the user presses the fixed portion T1 with the thumb, the thumb can be arranged at a position overlapping the opening auxiliary pressing region P in the plan view, so that the effect described below can be exhibited. ..
In the embodiment in which the opening auxiliary pressing region P overlaps with or is located in the vicinity of the fixed portion T1 in the plan view, the opening auxiliary pressing region P overlaps with the absorber 11 sandwiched in the thickness direction Z. Is not included.

Since the first squeezed region 4 and the second squeezed region 2 have a compressed and recessed structure, a step is formed at the boundary portion with the surroundings. In the above configuration, when the protruding portion T2 is picked up, the user presses the vicinity of the fixed portion T1 with a finger or the like, and the pressed exterior material 16 sinks downward due to the step formed by the opening auxiliary pressing region P. Include. As a result, the protruding portion T2 of the tab tape T floats upward, the user can easily pick the protruding portion T2, and the package 10 can be easily opened. Further, since the opening auxiliary squeezing region P has a higher rigidity than the surroundings, the user can easily push in the vicinity thereof due to the difference in feel from the surroundings, and the protrusion T2 is promoted to float.
Therefore, with the above configuration, the protruding portion T2 of the tab tape T can be easily grasped, and the package 10 of the napkin 1 can be easily opened.

The above-mentioned action and effect will be explained more specifically. Since the package 10 folds the absorber 11 having some elasticity, a force in the direction of opening upward in the thickness direction Z always acts on the second folding region R2 and the first folding region R1. That is, in the package 10, each folded region is sealed by the side sealing portion S and the tab tape T against this force to maintain the tri-fold shape. For this reason, the package 10 does not have a dense laminated structure, but leaves a gap inside due to a step in each configuration. As a result, in the inside of the package 10, a gap in the thickness direction Z due to the step is formed in the upper and lower sides of the first squeezing region 4 and the lower region of the second squeezing region 2. This gap contributes to the sinking when the vicinity of the fixed portion T1 is pressed, and the protruding portion T2 of the tab tape T is easily lifted upward.

[Arrangement of opening auxiliary pressing area and tab tape]
As shown in FIG. 12, both the opening auxiliary pressing region P and the tab tape T are located at the central portion 64 in the lateral direction Y of the package 10.
The "central portion 64 in the lateral direction Y of the package 10" is a central region when the package 10 is divided into three equal parts in the lateral direction Y.

With this configuration, even when the tab tape T is picked and opened from an oblique direction with respect to the vertical direction X or from the horizontal direction Y, the influence of the tension acting on the exterior material 16 by the picked tab tape T affects the exterior. It becomes easy to extend to both sides of the material 16 in the lateral direction Y. As a result, the second folding region R2 can be easily peeled off from the first folding region R1, and the package 10 can be opened more easily.

The above-mentioned action and effect will be explained more specifically. By arranging the tab tape T and the opening auxiliary pressing area P in the central portion 64, when the tab tape T is grasped and lifted upward, the left and right side portions are sealed from the fixing portion T1 of the tab tape T via the exterior material 16. Tension is more likely to act on the portion S more evenly. Therefore, even when the tab tape T is gripped from a direction other than the vertical direction X, such as an oblique direction with respect to the vertical direction X or the horizontal direction Y as described above, the left and right side sealing portions S are opened. It becomes easier to open, and the convenience of opening can be improved.

[Detailed configuration of opening auxiliary squeezing area]
As shown in FIGS. 11 and 12, the opening auxiliary squeezing region P, which is at least one of the first squeezing region 4 and the second squeezing region 2, extends in the vertical direction X, and a plurality of linear lines arranged apart from each other. Includes the squeeze groove 3 of. In the package 10, both the first squeezing region 4 and the second squeezing region 2 include a plurality of squeezing grooves 5 and squeezing grooves 3 having the above configurations, respectively.

The squeezing groove 3 is a highly rigid portion in which the absorbent core 20 and the core wrap sheet 7 of the absorber 11 are compressed and compacted in the thickness direction Z. On the other hand, the region between the adjacent squeezing grooves 3 is somewhat compacted due to the influence of the squeezing grooves 3, but the rigidity is smaller than that of the squeezing grooves 3. Therefore, when the fixing portion T1 is pressed, the region between the pressing grooves 3 of the opening auxiliary pressing region P is easily compressed in the thickness direction Z, and the fixing portion T1 is easily pushed downward. Therefore, the protruding portion T2 of the tab tape T tends to float upward, and the package 10 can be opened more easily.

Further, in the napkin 1 of the present embodiment, at least a part of the fragrance arrangement region K, the first squeezing region 4, and the second squeezing region 2 are arranged so as to overlap in a plan view seen from the thickness direction Z. As a result, in the work of peeling off the tab tape T, the wearer pushes the fixed portion T1 downward to push the first squeezed region 4 or a region in the vicinity thereof, and the fragrance in the fragrance arrangement region K is released to the outside by the pump effect. It becomes easier to recognize the odor derived from excrement, and the discomfort during wearing can be reduced.

[Positional relationship between tab tape and first squeezed area]
As shown in FIG. 12, the protruding portion T2 of the tab tape T includes an adhesive region T3 and a non-adhesive region T4. The first squeezed region 4 is configured so as not to overlap the non-adhesive region T4 in a plan view of the package 10 when viewed from the thickness direction Z. That is, the first squeezed region 4 is not located below the non-adhesive region T4.

As a result, the non-adhesive region T4 is configured so as not to sink downward due to the step caused by the first squeezed region 4. Therefore, the non-adhesive region T4 is arranged on a substantially flat surface, and when the fixed portion T1 is pressed, the non-adhesive region T4 is easily lifted, and the package 10 is more easily opened.

[Positional relationship between the vertical peripheral edge of the folded area and the pressed area]
As shown in FIGS. 11, 12 and 13, the first folding region R1 includes the first longitudinal peripheral edge portion E1 in which the absorber 11 is absent. Similarly, the second folding region R2 includes a second longitudinal peripheral edge E2 in which the absorber 11 is absent.

As shown in FIG. 11, the first longitudinal peripheral portion E1 is a region of the first folding region R1 located further behind the rear end portion 11b of the absorber 11. The first longitudinal peripheral edge E1 includes a region in which the napkin 1 is present and a region in which the napkin 1 is not present. The region where the napkin 1 exists is composed of, for example, a laminated body of the rear end portion of the napkin 1 composed of the front surface sheet 12 and the back surface sheet 13 and the exterior material 16. The area where the napkin 1 does not exist consists of only the exterior material 16.
Similarly, the second longitudinal peripheral portion E2 is also a region of the second folding region R2 that is located further in front of the front end portion 11a of the absorber 11. The second longitudinal peripheral edge E2 includes a region in which the napkin 1 is present and a region in which the napkin 1 is not present. The region where the napkin 1 exists is composed of, for example, a laminated body of the front end portion of the napkin 1 composed of the front surface sheet 12 and the back surface sheet 13 and the exterior material 16. The area where the napkin 1 does not exist consists of only the exterior material 16.
As described above, the first longitudinal peripheral edge E1 and the second longitudinal peripheral edge E2 are located in the first folding region R1 and the second folding region R2 from the regions where the first squeezing region 4 and the second squeezing region 2 exist. Is an even thinner area.

As shown in FIGS. 12 and 13, when the package 10 is folded, the first longitudinal peripheral edge portion E1 extends toward the second folded end portion RE2. The end portion of the first vertical peripheral portion E1 is the above-mentioned first vertical end portion E11, and is located in the vicinity of the second folded end portion RE2.
On the other hand, the second longitudinal peripheral edge portion E2 extends toward the first folded end portion RE1. The end of the second vertical peripheral edge E2 is the above-mentioned second vertical end E21 on which the tab tape T is arranged.

As shown in FIGS. 12 and 13, the second squeezed region 2 is an end portion (first) of the first longitudinal peripheral portion E1 than the first squeezed region 4 in a plan view seen from the thickness direction Z of the package 10. Vertical end) Located on the E11 side.
Between the first squeezed region 4 and the second squeezed region 2, at least a part of the first longitudinal peripheral edge E1 and the second longitudinal peripheral edge E2 is located in a plan view of the package 10 when viewed from the thickness direction Z. Located on top of each other. That is, among the first fold region R1 and the second fold region R2, the first squeeze region 4 and the second squeeze region 2 exist between the first squeeze region 4 and the second squeeze region 2 in the plan view. A portion thinner than the region is arranged.

As described above, the package 10 does not have a dense laminated structure, but has a gap inside due to a step in each configuration. Therefore, there are gaps in the upper and lower sides of the first longitudinal peripheral edge E1 inside the package 10 and the lower regions of the second longitudinal peripheral edge E2 due to the thin thickness of these peripheral edges. Is formed. This gap is located between the first squeezing region 4 and the second squeezing region 2 in the plan view, that is, in the vicinity of the opening auxiliary squeezing region P. Therefore, a part of the finger pressing the fixed portion T1 is located above this gap, and the finger enters this gap due to the pressing and tends to sink further downward. Therefore, the protruding portion T2 of the tab tape T becomes easier to float, and the package 10 can be opened more easily.

[Positional relationship between high basis weight and pressed area in the package]
As shown in FIGS. 11 and 13, in the package 10, the high basis weight portion 24 is located in the third folding region R3. The low basis weight portions 28 are located on both sides of the high basis weight portion 24 in the lateral direction Y.
In the package 10 in which the napkin 1 after opening is stretched on an XY plane, the high basis weight portion 24 is the thickest region in the thickness direction Z. The length of the first squeezed region 4 and the second squeezed region 2 in the lateral direction Y is equal to or more than the maximum length D1 in the lateral direction Y of the high basis weight portion 24, and is the same length as the maximum length D1 in the present embodiment. ing. Therefore, in the folded package 10, the first squeezed region 4 and the second squeezed region 2 and the high basis weight portion 24 overlap in a plan view.
In the package 10 in the folded state, the presence of the high basis weight portion 24 having a large thickness and cushioning property makes the first squeezing region 4 or a region in the vicinity thereof having cushioning property. As a result, at the time of opening, the pushing depth when the fixing portion T1 of the tab tape T is pressed becomes large, and the fixing portion T1 easily sinks downward. Therefore, the protruding portion T2 of the tab tape T becomes easier to float, and the package 10 can be opened more easily.

<Example of dimensions of each configuration>
Hereinafter, dimensional examples of each configuration will be described, but these numerical values are merely examples and are not limited thereto.
In the present embodiment, the length of the napkin 1 in the vertical direction X is 250 mm, and the length of the main body M in the horizontal direction Y is 73 mm.
The length a of the forward pressing region 2 in the lateral direction Y is 35 mm, and the length b in the vertical direction X is 12.5 mm. The length c of the rear compression region 4 in the lateral direction Y is 35 mm, and the length d in the longitudinal direction X is 5 mm.
The maximum length D1 of the high basis weight portion 24 in the lateral direction Y is 35 mm.
Here, the length a of the front compression region 2 in the lateral direction Y and the length c of the rear compression region 4 in the lateral direction Y are the same as the length D1. It is preferable that the length a of the anterior compression region 2 in the lateral direction Y and the length c of the posterior compression region 4 in the lateral direction Y are D1 or more.

The maximum length D1 of the high basis weight portion 24 in the lateral direction Y is preferably 25 mm or more, more preferably 30 mm or more, and preferably 50 mm or less from the viewpoint of ensuring a surface that efficiently absorbs excrement from the excretion part. , More preferably 45 mm or less.
The maximum length in the lateral direction Y between the pair of leak- proof flutes 19a, 19a is preferably 30 mm or more, more preferably 35 mm or more, and preferably 70 mm or less, more preferably 65 mm or less.

The length of each of the front squeezing region (second squeezing region) 2 and the rear squeezing region (first squeezing region) 4 in the lateral direction Y is appropriately set according to the length D1 of the high basis weight portion 24 in the lateral direction Y. To.
For example, the length a of the anterior compression region 2 in the lateral direction Y is preferably 15 mm or more, more preferably 20 mm or more, and preferably 55 mm or less, more preferably 50 mm or less.
The length c of the rear compression region 4 in the lateral direction Y is preferably 15 mm or more, more preferably 20 mm or more, and preferably 55 mm or less, more preferably 50 mm or less.
The length a (length c) in the lateral direction Y of the anterior compression region 2 (rear compression region 4) is a pair of compression grooves 3 located most laterally in the lateral direction Y of the anterior compression region 2 (rear compression region 4). The distance between the outer edges of (a pair of squeezing grooves 5).
By setting the lower limit values of the length a and the length c in this way, the front squeezing region 2 and the rear squeezing region 4 are likely to be overlapped with or in the vicinity of the tab tape T in the package 10. Further, by setting the upper limit values of the length a and the length c in this way, a gap due to the front pressing region 2 and the rear pressing region 4 is surely formed inside the package 10, and the fixing portion T1 is formed. The effect of pressing the tab tape T to make it easier to grasp is easily exhibited.

Here, in the napkin 1, the pair of leak- proof flutes 19a and 19a and the pair of side edge portions 24a of the high basis weight portion 24 are elastically likely to be deformed favorably when the napkin 1 receives an external force from the lateral direction Y. It functions as the base point of deformation. In the napkin 1, the pair of side edge portions 24a of the high basis weight portion 24 is a portion that is located closest to the center line 33 and is the starting point of elastic deformation. The region sandwiched by the pair of side edge portions 24a, that is, the high basis weight portion 24 is a region in which a large amount of excrement from the wearer is absorbed.
As described above, in the napkin 1, the length a in the lateral direction Y of the front compression region 2 and the length c in the lateral direction Y of the rear compression region 4 are the pair closest to the center line 33 which is the starting point of the elastic deformation. The length of the widest portion of the side edge portion 24a in the lateral direction Y is preferably D1 or more. Further, it is more preferable that the length of the front pressing region 2 and the rear pressing region 4 in the lateral direction Y is equal to or less than the length of the widest portion of the pair of leak-proof vertical grooves 19a and 19a in the lateral direction Y.

The length of each of the front squeezing area (second squeezing area) 2 and the rear squeezing area (first squeezing area) 4 in the vertical direction X is appropriately determined according to the length of the napkin in the vertical direction X, the position of the leak-proof groove, and the like. Set.

The length b of the anterior compression region (second compression region) 2 in the longitudinal direction X is preferably 5 mm or more, more preferably 7 mm or more, and preferably 25 mm or less, more preferably 20 mm or less.
By setting the lower limit value of the length b of the front compression region (second compression region) 2 in the longitudinal direction X in this way, the front compression region (second compression region) 2 overlaps with the tab tape T in the package 10. Or, when it is located in the vicinity, the protruding portion T2 can be more reliably floated by pressing the fixed portion T1. Further, by setting the upper limit value of the length b of the front pressing region 2 in the vertical direction X in this way, a gap due to the front pressing region 2 is surely formed inside the package 10, and the fixed portion T1 is pressed. As a result, the effect of making the tab tape T easier to grasp is easily exerted.
The length X in the vertical direction of each of the squeezing grooves 3 in the front squeezing region 2 may be different, and the length b in this case is the length of the longest squeezing groove 3 in the front squeezing region 2.

The length d of the posterior squeezing region (first squeezing region) 4 in the longitudinal direction X is preferably 2 mm or more, more preferably 5 mm or more, and preferably 20 mm or less, more preferably 15 mm or less.
By setting the lower limit of the length of the rear compression region (first compression region) 4 in the vertical direction X in this way, the rear compression region (first compression region) 4 overlaps with the tab tape T in the package 10. Alternatively, when it is located in the vicinity, the protruding portion T2 can be more reliably floated by pressing the fixed portion T1. Further, by setting the upper limit value of the length c of the rear compression region (first compression region) 4 in this way, the gap caused by the rear compression region (first compression region) 4 is surely inside the package 10. The effect of pressing the fixed portion T1 to make it easier to grasp the tab tape T is easily exerted.
The length X of each squeezing groove 5 in the rear squeezing region (first squeezing region) 4 may be different, and the length d in this case is the rear squeezing region (first squeezing region) 4. The length of the longest pressing groove 5 is assumed.

In the package 10, the depth of the squeezing groove 3 and the squeezing groove 5 in the thickness direction Z is sufficiently stepped and rigid at the boundary between the front squeezing region (second squeezing region) 2 and the rear squeezing region (first squeezing region) 4. From the viewpoint of forming a difference, it is preferably 0.3 mm or more, more preferably 0.5 mm or more, and preferably 3.0 mm or less, more preferably 2.0 mm or less.
The groove widths of the squeezing groove 3 and the squeezing groove 5 are preferably 0.5 mm or more, more preferably 1.0 mm or more, and preferably 3.0 mm or less, more preferably 2.0 mm or less.
The distance between the adjacent pressing grooves 3 and the pressing grooves 5 along the lateral direction Y is preferably 0.5 mm or more, more preferably 1.0 mm or more, from the viewpoint of sufficiently securing a region having a lower rigidity than the pressing groove 3. And preferably 3.0 mm or less, more preferably 2.0 mm or less.
In the napkin 1 and the package 10, the number of the squeezing grooves 3 and the squeezing grooves 5 in each of the front squeezing region (second squeezing region) 2 and the rear squeezing region (first squeezing region) 4 is not limited to the illustrated example. It is preferably 2 or more, more preferably 5 or more, and preferably 25 or less, more preferably 20 or less.

With reference to FIG. 12, the width m of the tab tape T in the lateral direction Y is preferably 5 mm or more, more preferably 8 mm or more, preferably 35 mm or less, and more preferably 20 mm or less. By setting the lower limit of the width m of the tab tape T in this way, the tab tape T can be easily grasped by a finger, and the openability can be improved. By setting the upper limit value of the width m of the tab tape T in this way, the width m is set to the length c or less in the lateral direction Y of the opening auxiliary pressing region P, and the protruding portion T2 easily floats when the fixed portion T1 is pressed. To do.

With reference to FIG. 12, the length e of the fixing portion T1 of the tab tape T in the vertical direction X is from the viewpoint of securely fixing the tab tape T to the exterior material 16 and clearly indicating the position of pressing with a finger to the user. It is preferably 5 mm or more, more preferably 10 mm or more, and preferably 25 mm or less, more preferably 20 mm or less.
The length f of the protruding portion T2 of the tab tape T in the vertical direction X is preferably 5 mm or more, more preferably 10 mm or more, and preferably 10 mm or more, from the viewpoint of making it easy to grasp the tab tape T and opening the package 10. Is 25 mm or less, more preferably 20 mm or less.
The length g of the adhesive region T3 of the tab tape T in the vertical direction X is preferably 5 mm or more, more preferably 5 mm or more, from the viewpoint of reliably adhering the tab tape T to the first folding region R1 and facilitating the opening of the package 10. It is 8 mm or more, and preferably 18 mm or less, more preferably 16 mm or less.
The length h of the non-adhesive region T4 of the tab tape T in the vertical direction is preferably 2 mm or more, more preferably 4 mm or more, from the viewpoint of making it easy to grip the non-adhesive region T4 and appropriately securing the adhesive region T3. , And preferably 9 mm or less, more preferably 7 mm or less.
The distance j in the vertical direction X from the end of the non-adhesive region T4 of the tab tape T to the end of the package 10 formed by the first folding line L1 in the plan view from the thickness direction Z of the package 10 is It is preferably 4 mm or more, more preferably 6 mm or more, and preferably 30 mm or less, more preferably 25 mm or less.

With reference to FIG. 12, when the first squeezing region 4 is configured as the opening auxiliary squeezing region P, the distance k between the fixing portion T1 and the first squeezing region 4 in the vertical direction X is preferably 3 mm or less. As a result, the first squeezed region 4 is arranged near or overlapped with the fixed portion T1, and the protruding portion T2 can be satisfactorily raised when the fixed portion T1 is pressed by the action of the step of the first squeezed region 4. ..
The distance k between the fixed portion T1 and the first squeezed region 4 in the vertical direction X is the vertical direction X on the second folded end portion RE2 side of the fixed portion T1 in the plan view seen from the thickness direction Z of the package 10. It is the distance in the vertical direction X from the end portion to the portion of the first squeezed region 4 closest to the first folded end portion RE1.

<Other configuration examples>
The core wrap sheet 7 is typically a sheet-like material such as a non-woven fabric or paper mainly composed of hydrophilic fibers. The hydrophilic fibers contained in the core wrap sheet 7 include wood pulps such as coniferous pulp and broadleaf pulp, natural fibers such as non-wood pulp such as cotton pulp and hemp pulp; and modified pulp such as cationized pulp and marcelled pulp; Regenerated fibers such as cupra and rayon; Semi-synthetic fibers such as acetate; Hydrophilic synthetic fibers such as polyvinyl alcohol fiber and polyacrylonitrile fiber; Hydrophilization treatment of synthetic fibers such as polyethylene terephthalate fiber, polyethylene fiber, polypropylene fiber and polyester fiber Examples thereof include applied fibers, and one of these can be used alone or in combination of two or more. Typical of the hydrophilic fibers in the core wrap sheet 7 are natural fibers, cellulosic regenerated fibers or semi-synthetic fibers. The core wrap sheet 7 may further contain synthetic fibers (hydrophobic fibers), for example, thermoplastic fibers, in addition to the hydrophilic fibers. As the thermoplastic fiber, for example, a single fiber formed by using a single synthetic resin such as polyethylene, polypropylene, polyester, polyurethane, or a synthetic resin such as a composite of two or more kinds thereof was formed. Composite fibers such as core-sheath type and side-by-side type formed by using two or more kinds of synthetic resins can also be used.

The absorber 11 may contain a functional agent. The functional agent is contained in at least one of the absorbent core 20 and the core wrap sheet 7. The functional agent may be arranged on the entire surface of the core wrap sheet 7, or may be contained in a part of the core wrap sheet 7. Further, the functional agent may be contained only in the core wrap sheet 7, may be contained only in the absorbent core 20, or may be contained in both the core wrap sheet 7 and the absorbent core 20. Is also good. Here, an example in which the core wrap sheet 7 contains a functional agent will be given.
Functional agents include fragrances, antibacterial agents, deodorants, cooling agents and the like. One or more functional agents selected from these various functional agents can be contained in the core wrap sheet 7.

Highly volatile fragrance components used as fragrances include, for example, anisole, benzaldehyde, benzyl acetate, benzyl alcohol, benzyl formate, isobornyl acetate, citronellal, citronellol, citronellyl acetate, paracimen, decanal, dihydrolinalool, dihydromilsenol, dimethylphenyl. Carbinol, Eucalyptor, 1-Carbon, Geranyl, Geraniol, Geranyl Acetate, Geranyl nitrile, Neryl Acetate, Nonyl Acetate, Linalool, Ethyllinalol, Linalool Acetate, Phenylethyl Alcohol, α-Pinene, β-Pinene, γ-Pinene , Α-Yonone, β-Yonone, γ-Yonone, α-terpineol, β-terpineol, terpinyl acetate, tentalome and the like, and one of these can be used alone or in combination of two or more.

Medium volatile fragrance components used as fragrances include, for example, amycinnamaldehyde, methyl dihydrojasmonate, isoamyl salicylate, β-cariophyllene, sedrene, sedrill methyl ether, cinnamon alcohol, coumarin, dimethylbenzyl carvinyl acetate, isooigenol, etc. Examples thereof include γ-methylyonone, heliotropin, hexyl salicylate, cis-3-hexenyl salicylate, phenylhexanol, pentalide and the like, and one of these can be used alone or in combination of two or more.

As a fragrance, a fragrance composition containing, in addition to the above-mentioned highly volatile and medium volatile fragrance components, or in addition to these fragrance components, fragrances having rose fragrance, lavender fragrance, jasmine fragrance, and Iran-Iran fragrance. You can also use things. Examples of such a fragrance composition include nerol, lavandulol, jasmar, cyclopidene and the like, and one of these can be used alone or in combination of two or more. The fragrance includes the above-mentioned fragrance material alone, and a combination of fragrance materials composed of a plurality of fragrances (fragrance composition), such as natural essential oils and compounding bases, diluted and adjusted with a solvent. "Is included. For example, as the fragrance, a fragrance composition containing a fragrance having a rose, lavender, jasminum, or Iran-Iran-like fragrance can be used.

By containing the antibacterial agent in the core wrap sheet 7, it is possible to effectively prevent the growth of bacteria inside the absorbent core 20, which is the main cause of the offensive odor. The antibacterial agent is preferably contained in the absorber 11 in the central portion of the lateral direction Y in at least the intermediate region C of the napkin 1, and is effective in the growth of bacteria inside the absorbent core 20 which is the main cause of the foul odor. Can be prevented.
Known antibacterial agents can be used. As the antibacterial agent, it is preferable to use an organic antibacterial agent. When the odor-generating substance in the excrement is organic, the organic antibacterial agent can have high antibacterial and deodorant properties due to its good affinity with the odor-generating substance. From the viewpoint of affinity with organic odor-causing substances and bacteria, organic cationic antibacterial agents are particularly preferable. Cationic antibacterial agents can suppress the generation of strong putrid odors as a control of malodor production.
Cationic antibacterial agents are organic compound-based antibacterial agents that elute more into excrement such as urine than metal ion-based agents such as silver, zinc, and copper, and have a wide range of antibacterial effects. In particular, quaternary ammonium salts such as didecyldimethylammonium salt, alkylpyridinium salt, benzethonium salt, benzalconium salt, monoalkyltrimethylammonium salt and dialkyldimethylammonium salt are mentioned, and at least one selected from the group consisting of these. It preferably contains seeds. One of these cationic antibacterial agents may be used alone, or two or more thereof may be combined.

For example, the antibacterial agent can be contained in the core wrap sheet 7 in a substantially uniform content in the plane. In such a configuration, in the absorber 11, the multi-layer core wrap sheet region 37 in which three core wrap sheets 7 are present in the thickness direction has a unit area of the antibacterial agent more than the region in which two other core wrap sheets 7 are present. It is a region with a high hit content and a high antibacterial effect. Since the lateral Y central portion 31 of the absorber 11 is a region where a large amount of body fluid from the wearer is absorbed, a multilayer core wrap sheet region 37 having a high content of antibacterial agent is located in the central portion 31 of the absorber 11. Therefore, the antibacterial action can be effectively exhibited.
When a core wrap sheet having a region having a locally high content of antibacterial agent is used as a napkin, the region having a locally high content of antibacterial agent is located in the lateral Y central portion 31. May form an absorber.

The deodorant is a substance that can directly act on the odor, that is, adsorb, neutralize, decompose, etc., to exert a deodorizing effect, and is also widely used in the technical field for deodorizing applications. However, porous deodorant granules are preferable because they have a wide deodorizing spectrum for odors. Examples of the porous deodorant granules include inorganic deodorant granules and organic deodorant granules. The inorganic deodorant granules are deodorant granules mainly composed of an inorganic compound, that is, deodorant granules in which the compound serving as the skeleton of the deodorant granules is an inorganic compound. The organic deodorant granules are deodorant granules mainly composed of organic compounds, that is, deodorant granules in which the compound forming the skeleton of the deodorant granules is an organic compound.
As described above, by using a deodorant in addition to the antibacterial agent, the generation of bad odor can be further suppressed.

Preferred inorganic deodorant granules include kanclinite-like minerals, zeolites, montmorillonite, activated carbon and the like. Among these, porous deodorant granules having polarity are preferable because they are suitable for deodorizing water-soluble odor-causing substances, and further, kanclinite-like minerals and zeolites have a wide deodorizing spectrum. preferable. Since activated carbon belongs to non-polarity, it is effective in deodorizing organic odorous components, and examples thereof include coconut shell coal, charcoal, bituminous coal, peat, and lignite. However, it is preferable that activated carbon is not contained from the viewpoint of preventing the organic fragrance component from being adsorbed and deteriorating the odor.
Preferred organic deodorant particles include particles obtained by copolymerizing a monomer component containing a crosslinkable vinyl monomer and a vinyl monomer having a heteroaromatic ring.

A cooling sensation agent is an agent that stimulates the temperature receptors on the surface of the skin or mucous membrane of the wearer to make the wearer feel cold and refreshing without changing the temperature on the surface of the skin or mucous membrane. Is.
Mentil lactate, menthol, or the like can be used as a cooling sensation agent.

<Modification example>
It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made. Hereinafter, the same configurations as those in the above-described embodiment will be designated by the same reference numerals, and the description thereof will be omitted.

For example, in the above-described embodiment, both the front compression region 2 and the rear compression region 4 are provided, but either one may be provided, and the front end portion of the napkin or the front end portion of the napkin may be provided by providing the compression region. The occurrence of twisting and curling at the rear end is suppressed.
Further, in the above-described embodiment, the napkin provided with the wing portion has been described as an example, but the napkin may be applied to the napkin having no wing portion.
Further, in the above-described embodiment, the napkin having an absorbent core having a high basis weight portion is given as an example, but it may be applied to a napkin having an absorbent core having no high basis weight portion.

Further, in the above-described embodiment, the anterior-compressed region 2 and the posterior-compressed region 4 are formed so as to extend to the front-rear edge of the core wrap sheet 7, but the front-rear edge 7a of the core wrap sheet 7 It does not have to extend to 7b, as long as it extends to the front edge 20a and the trailing edge 20b of the absorbent core 20, respectively.

Further, in the above-described embodiment, the configuration in which the slip stopper 15 for the main body and the front pressing region 2 and the rear pressing region 4 do not overlap in a plan view has been described as an example, but is shown in FIG. 15 (A). Like the napkin 51, the front squeezing region 2 and the rear squeezing region 4 and the main body slip stopper 551 may be formed so that at least a part thereof overlaps in a plan view.

As shown in FIG. 15A, the back sheet 13 of the napkin 51 is provided with a main body slip stopper group 55 composed of two main body slip stoppers 551 and 551. The two main body slip stoppers 551 and 551 extend in the vertical direction X and are arranged apart from each other along the horizontal direction Y. The slip stopper 551 for the main body is not located on the center line 33.
A part of each of the front pressing region 2 and the rear pressing region 4 is located in the non-overlapping portion 40 which does not overlap with the slip stopper 551 for the main body in the front portion and the rear portion of the absorber 11, and the other portion is the main body. It is located so as to overlap with the slip stopper 551. The outermost portion of the main body slip stopper group 55 in the lateral direction Y is located outside the laterally Y of the front pressing region 2 and the rear pressing region 4 in the lateral direction Y. That is, when a pair of virtual lines 41, 41 extending parallel to the vertical direction X passing through the innermost end in the lateral direction Y of the main body slip stopper group 55 composed of the pair of main body slip stoppers 551 is drawn. , The front compression region 2 and the rear compression region 4 are located between the pair of virtual lines 41, 41.

In the example shown in FIG. 15A, since the front pressing region 2 and the rear pressing region 4 overlap with the slip stopper 551 for the main body in a plan view, in the absorber 11, the front end edge to the rear end edge of the absorber 11 The high-rigidity region is continuously located along the vertical direction X.
As a result, the synergistic effect of the front squeezing region 2 and the rear squeezing region 4 and the plurality of slip stoppers 551 for the main body suppresses the occurrence of twisting and curling of the front end portion 11a and the rear end portion 11b of the absorber 11. , The shape of the absorber 11 is easily maintained.

Further, another modification of the slip stopper for the main body will be described with reference to FIG. 15 (B).
The main body slip stopper group 56 formed on the napkin 52 shown in FIG. 15B has a plurality of main body slip stoppers 561 extending in the lateral direction Y and arranged apart from each other in the vertical direction X. When a pair of virtual lines 41, 41 extending parallel to the vertical direction X passing through the outermost end in the lateral direction Y of the slip stopper group 56 for the main body is drawn, forward pressing is performed between the pair of virtual lines 41, 41. Region 2 and posterior compression region 4 are located.
A slip stopper for the main body having such a shape may be used, and similarly to the other examples described above, the absorber 11 is produced by the synergistic effect of the front compression region 2 and the rear compression region 4 and the plurality of slip stoppers 561 for the main body. The occurrence of twisting and curling of the front end portion 11a and the rear end portion 11b is suppressed.
Further, the intermittent portion 562 between the adjacent slip stoppers 561 for the main body has lower rigidity than the region where the slip stoppers are arranged. The plurality of intermittent portions 562 extending in the lateral direction cushion the influence of external force from the front and rear ends of the napkin 52, and suppress the occurrence of twisting in the region facing the excretory portion.

Further, in the above-described embodiment, the planar shapes of the front pressing region 2 and the rear pressing region 4 are substantially rectangular, but the shape is not limited to this. A modification will be described with reference to FIG.
The absorber 53 shown in FIG. 16 has a leak-proof groove 58, a front squeezing region 62, and a rear squeezing region (not shown). The leak-proof groove 58 has a leak-proof vertical groove 58a extending in the vertical direction X and a leak-proof horizontal groove 58b extending in the horizontal direction Y. As shown in FIG. 16, in the front end portion 53a of the absorber 53, the leak-proof lateral groove 58b and the front squeezing region 62 are arranged so as to be separated from each other, and the distance between the two in the longitudinal direction X is lateral to the lateral direction Y. The distance D2 at the center of the lateral Y is shorter than the distance D3 at the portion.
The anterior compression region 62 comprises a plurality of compression grooves 63 extending in the longitudinal direction X. Each squeezing groove 63 is formed so that the length in the vertical direction X gradually increases from both sides in the horizontal direction Y toward the center, and the entire squeezing region becomes convex inward in the vertical direction X. There is.
In this way, the squeezed area and the leak-proof groove can take various shapes.
Further, as shown in FIG. 16, in the vertical X distance between the squeezed region and the leak-proof groove, the distance in the horizontal Y central portion is relatively shorter than the distance in the horizontal Y lateral portion. It is preferable that the structure is as follows. As a result, the occurrence of twist in the lateral Y center portion at the end portion in the front-rear direction of the absorber 53 is suppressed, and the twist in the lateral Y lateral portion is less likely to propagate to the excretion portion facing region.

Further, in the above-described embodiment, the leak-proof vertical groove 19a and the leak-proof horizontal groove 19b are connected to form one substantially oval shape, but as in the napkin 54 shown in FIG. The leakage groove 59 may be composed of a pair of leakage-proof vertical grooves 59a and 59a and a pair of leakage-proof horizontal grooves 59b and 59b that are not continuous with each other.

In the packaging body 10, FIGS. 11 to 13 have described an example in which the packaging body 10 is folded in the vertical direction X by two folding lines and the first squeezing region 4 functions as the opening auxiliary squeezing region P. Not limited.

For example, the package may be folded in the vertical direction X by three folding lines extending in the horizontal direction Y. In this case, it is assumed that the first fold line, the third fold line, and the second fold line are arranged on the package from the side closer to the first squeeze area.
The area including the first squeezed area defined by the first fold line is referred to as the first fold area. The area including the second squeezed area, which is partitioned by the second fold line, is referred to as the second fold area. The area partitioned by the third fold line and the second fold line, which is located between the first fold area and the second fold area, is referred to as a third fold area. The area partitioned by the third fold line and the first fold line is referred to as the fourth fold area.
For example, the first fold area and the fourth fold area are areas of the napkin including a posterior area located on the dorsal side of the wearer's excretory part when worn. The second folded region is an region of the napkin that includes an anterior region located ventral to the wearer's excretory portion when worn. The third fold area is an area of the napkin including an area facing the excretion part of the wearer when worn.

To fold this package, first, the laminate of the napkin and the exterior material is folded with the first fold line as the fold axis and the first fold area on the fourth fold area. Next, the folded first fold area and the fourth fold area are further folded on the third fold area with the third fold line as the fold axis. Next, the second folding area is folded over the folded first, third, and fourth folding areas with the second folding line as the folding axis. Then, the tab tape fixed to the second folding region is detachably adhered to the exterior material of the fourth folding region.

In this package, an absorber of the fourth folding region exists between the first pressing region located in the first folding region and the tab tape. Therefore, the first squeezed region is not included in the above-mentioned "opening auxiliary squeezed region overlaps with or is located near the fixed portion in a plan view from the thickness direction of the package".
On the other hand, when the second squeezed region is located in the vicinity of the fixed portion in the plan view, the second squeezed region functions as an opening auxiliary squeezed region. Therefore, even in such a four-fold package, if the second squeezed region is located near the fixed portion in the plan view, the protruding portion floats upward when the fixed portion is pressed, and the package 10 is opened. Can be easily performed.

Further, in the above-described embodiment, an example is shown in which the planar shapes of the first squeezed region 4 and the second squeezed region 2 are substantially rectangular, but the shape is not limited to this, and at least one of the tab tapes T is used in the package. It suffices if it overlaps with or is located in the vicinity of the fixed portion T1 in the plan view.
Further, the package body 10 is not limited to the above-mentioned configuration, and may include, for example, a release sheet between the exterior material 16 and the napkin 1.

As described above, according to the present invention, the absorption performance of the absorbent article in the region facing the excretion portion can be sufficiently exhibited.

Claims (19)

1. It includes a front surface sheet, a back surface sheet, an absorber arranged between the front surface sheet and the back surface sheet, and a slip stopper arranged on the back surface sheet and positioned so as to overlap the absorber in a plan view. However, it is an absorbent article having a vertical direction corresponding to the front-back direction of the wearer and a horizontal direction orthogonal to the vertical direction.
   The absorber has a laterally extending squeezed region formed by compressing the absorber in the thickness direction at at least one of the front end portion and the rear end portion in the longitudinal direction.
   The slip stopper is an absorbent article in which at least a part thereof overlaps with the pressed region in the lateral direction in a plan view.
2. The absorbent article has a leak-proof groove formed by integrally compressing the surface sheet and the absorber in the thickness direction.
   The leak-proof groove is arranged so as to surround the lateral central portion of the absorber, exists from the front region in front of the intermediate region in the vertical direction to the rear region behind, and is present in a plan view. The absorbent article according to claim 1, wherein at least a part thereof overlaps with the slip stopper.
3. The absorbent article according to claim 2, wherein the squeezed region is located vertically separated from the leak-proof groove in a plan view.
4. The leak-proof groove includes a pair of leak-proof flutes extending in the vertical direction from the front region to the rear region via a center line extending in the vertical direction that divides the absorbent article into two in the horizontal direction. Each of the front region and the rear region has a pair of leak-proof lateral grooves located so as to extend in the lateral direction across the center line.
   The absorbent article according to claim 2 or 3, wherein the distance between the leak-proof lateral groove and the squeezed region in the vertical direction is shorter in the lateral central portion than in the lateral lateral portion.
5. The absorbent article according to any one of claims 1 to 4, wherein the squeezed region includes a plurality of linear squeezing grooves extending in the vertical direction and arranged apart from each other in the horizontal direction.
6. The absorber has the squeezed region at each of the front end and the rear end.
   The absorbent article according to any one of claims 1 to 5, wherein the squeezed region located at the front end portion has a longer length in the vertical direction than the squeezed region located at the rear end portion.
7. The absorber has a non-overlapping portion that does not overlap with the slip stopper in a plan view at least one of the front portion and the rear portion.
   The absorbent article according to any one of claims 1 to 6, wherein at least a part of the pressed region is arranged in the non-overlapping portion.
8. The absorbent article according to claim 7, wherein a part of the pressed region is arranged so as to overlap the slip stopper in a plan view.
9. The absorbent article according to any one of claims 1 to 8, wherein the absorbent article includes a plurality of the slip stoppers extending in the vertical direction and arranged apart from each other in the horizontal direction. ..
10. The absorbent article according to claim 9, wherein the slip stopper is not located on the center line extending in the vertical direction, which divides the absorbent body into two in the horizontal direction.
11. The absorbent article according to any one of claims 1 to 8, wherein the absorbent article comprises a plurality of the slip stoppers extending in the lateral direction and arranged apart from each other in the vertical direction. ..
12. The 9th to 11th claims, wherein the lateralmost end portion of the slip stopper group composed of the plurality of slip stoppers is located laterally outward from the lateralmost end portion of the compression region in the lateral direction. The absorbent article according to any one item.
13. The absorbent article has, at least one of the front end portion and the rear end portion in the vertical direction, a peripheral edge sealing portion extending in the lateral direction to which the front surface sheet and the back surface sheet are fixed.
    The absorbent article according to any one of claims 1 to 12, wherein the peripheral seal portion and the squeezed region are separated from each other in a plan view.
14. The absorber has an absorbent core and a core wrap sheet that covers at least a portion of the absorbent core.
    The core wrap sheet is located in a plan view extending from at least one of the front edge and the trailing edge of the absorbent core in the longitudinal direction.
    The one according to any one of claims 1 to 13, wherein the squeezed region is located across a region in which the absorber core and the core wrap sheet are laminated and a region in which only the core wrap sheet exists. Absorbent article.
15. The core wrap sheet is located so as to extend from the front end edge and the rear end edge of the absorbent core in the vertical direction in a plan view.
    The absorbent article according to claim 1 to 14, wherein in the front end portion and the rear end portion of the absorber, the region of only the core wrap sheet is located over the entire width in the lateral direction of the absorber.
16. A package in which the absorbent article according to any one of claims 1 to 15 is vertically folded together with an exterior material along at least two fold lines extending in the lateral direction and individually packaged. hand,
    The package is partitioned by one of the fold lines and a first fold region including the longitudinal end of the absorber and by the other one of the fold lines of the absorber. A second fold area including the other end in the vertical direction and a third fold area located between the first fold area and the second fold area are provided, and the second fold area is the third fold. Folded over the first folded area, folded over the first folded area,
    The absorber has the squeezed region located in each of the first folded region and the second folded region.
    The package includes a fixing portion fixed to the exterior material in the second folding region, a protruding portion protruding outward from the fixing portion to the outside of the second folding region, and a protruding portion detachably adhered to the exterior material. Also equipped with tab tape with
    At least one of the squeezed region located in each of the first fold region and the second fold region overlaps with the fixed portion or overlaps with the fixed portion in a plan view seen from the thickness direction of the package as an opening auxiliary squeezed region. A package located in the vicinity.
17. The protrusion of the tab tape has an adhesive region and a non-adhesive region.
    The package according to claim 16, wherein the squeezed area located in the second folded area does not overlap with the non-adhesive area of the tab tape in a plan view from the thickness direction of the package.
18. The absorbent article has a skin side surface of the absorber located on the skin side of the wearer, or a fragrance arrangement region in which the fragrance is arranged in the vertical direction between the surface sheet and the absorber. And
    The package according to claim 16 or 17, wherein the pressed region and the fragrance arrangement region overlap in a plan view.
19. The absorber has a high basis weight portion located in the third folding region and a low basis weight portion having a lower basis weight than the high basis weight portion located on both sides in the lateral direction via the high basis weight portion. Have and
    The package according to any one of claims 16 to 18, wherein the length of the squeezed region in the lateral direction is equal to or greater than the maximum length of the high basis weight portion in the lateral direction.

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