JP2023094796A - absorbent article - Google Patents

Abstract

The present invention relates to a layered absorbent article and an absorbent article that are easy to handle. A layered absorbent article is formed by laminating a first absorbent article having a first absorbent body and a second absorbent article positioned on the skin side of the first absorbent article. The second absorbent article is secured to the first absorbent article so as to be peelable from the first absorbent article. The second absorbent article has, in plan view, at least one of the front end portion and the rear end portion in the longitudinal direction a recess that is concave inward in the longitudinal direction, and a first projecting portion and a second protruding portion that are located on both lateral sides of the recess and protrude outward in the longitudinal direction. At least one of the first projecting portion and the second projecting portion has, in a plan view, a non-fixed area on the peripheral edge thereof to which the first absorbent article and the second absorbent article are not fixed. [Selection drawing] Fig. 1

Description

The present invention relates to absorbent articles such as sanitary napkins.

When replacing absorbent articles such as sanitary napkins, replacement work is difficult due to unfamiliarity, replacement work is troublesome, it is difficult to secure sufficient replacement time, and replacement absorbent articles are sent to action bases such as schools and workplaces other than home. There is a problem that it is difficult to secure an appropriate place for storage.
For example, Patent Literature 1 discloses a sanitary napkin set in which an auxiliary napkin is attached to the skin side of the sanitary napkin in order to reduce the frequency of replacement of the sanitary napkin itself.

JP 2021-97843 A

Like the napkin set described above, laminated absorbent articles in which two napkins (absorbent articles) are laminated are required to be easy to handle.

TECHNICAL FIELD The present invention relates to a layered absorbent article and an absorbent article that are easy to handle.

A layered absorbent article according to one aspect of the present invention has a longitudinal direction corresponding to the front-rear direction of a wearer and a lateral direction orthogonal to the longitudinal direction.
The layered absorbent article is formed by laminating a first absorbent article having a first absorbent body and a second absorbent article positioned on the skin side of the first absorbent article. .
The second absorbent article is fixed to the first absorbent article so as to be peelable from the first absorbent article.
In a plan view, the second absorbent article has, in at least one of a front end portion and a rear end portion in the longitudinal direction thereof, concave portions facing inward in the longitudinal direction, and laterally opposite sides of the concave portions. , a first protrusion and a second protrusion that are convex outward in the longitudinal direction.
At least one of the first projecting portion and the second projecting portion has a non-fixed area on the peripheral edge thereof in plan view, where the first absorbent article and the second absorbent article are not fixed. have.

An absorbent article according to one aspect of the present invention has a non-skin side.
The absorbent article can be layered by arranging the non-skin side facing the skin side of another absorbent article and releasably fixing it to the other absorbent article.
The absorbent article has a longitudinal direction corresponding to the wearer's front-rear direction and a lateral direction orthogonal to the longitudinal direction.
In a plan view, the absorbent article has a concave portion that is concave inward in the longitudinal direction on at least one of a front end portion and a rear end portion in the longitudinal direction, and is positioned on both lateral sides of the concave portion in the longitudinal direction. It has a first protrusion and a second protrusion that protrude outward.
At least one of the first projecting portion and the second projecting portion has a non-fixing area on its periphery where the fixing portion for fixing to the other absorbent article is not positioned.

According to the present invention, it is possible to provide a layered absorbent article and an absorbent article that are easy to handle.

1 is a plan view schematically showing a layered absorbent article according to an embodiment of the present invention; FIG. FIG. 2 is a diagram schematically showing a cross section of the layered absorbent article cut along line II-II in FIG. 1 (a line corresponding to the horizontal center line CL2 of the second napkin). FIG. 4 is a plan view of a second absorbent article that constitutes a part of the layered absorbent article, viewed from the side of the second backsheet.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Overall structure of laminated napkin]
As shown in FIGS. 1 and 2, the layered absorbent article 1 of this embodiment includes a first napkin 10 as a first absorbent article and a second napkin 20 as a second absorbent article. configured as The layered absorbent article 1 is configured as a sanitary napkin and is hereinafter referred to as layered napkin 1 .
The laminated napkin 1 has a longitudinal direction X corresponding to the front-rear direction of the wearer and a lateral direction Y corresponding to the left-right direction of the wearer and perpendicular to the longitudinal direction X. As shown in FIG. Furthermore, the laminated napkin 1 has a thickness direction Z orthogonal to both the longitudinal direction X and the lateral direction Y. As shown in FIG. In this specification, regarding the thickness direction Z, the side close to the wearer's skin when worn is sometimes expressed as the top or skin side, and the side close to the clothing is sometimes expressed as the bottom or non-skin side.
In this specification, the term “lateral direction Y inner side” means the side closer to the longitudinal center line CL1 that bisects the laminated napkin 1 in the lateral direction Y, and the term “lateral direction Y outer side” refers to the longitudinal center line. It means the side away from CL1. The vertical center line CL1 coincides with the vertical center line that bisects each of the first napkin 10 and the second napkin 20 that constitute the laminated napkin 1 in the horizontal direction Y, and the vertical center line of the first napkin 10 CL1 is sometimes referred to as the longitudinal centerline CL1 of the second napkin 20 .
In this specification, a line that bisects the second napkin 20 forming a part of the laminated napkin 1 in the longitudinal direction X is referred to as a horizontal center line CL2 of the second napkin 20. As shown in FIG. In the present specification, "vertical direction X inner side" means the side closer to the horizontal center line CL2, and "longitudinal direction X outer side" means the side away from the horizontal center line CL2.
As used herein, "longitudinal direction X forward" or "forward" means forward in the longitudinal direction X, that is, toward the abdomen of the wearer. Similarly, "longitudinal X rearward" or "rearward" means backward in the longitudinal direction X, ie, toward the back of the wearer.
In this specification, "planar view" means plan view seen from the thickness direction Z. As shown in FIG.

As shown in FIGS. 1 and 2, in the laminated napkin 1, the second napkin 20 is positioned on the skin side 10a side of the first napkin 10. As shown in FIGS. The first napkin 10 and the second napkin 20 are detachably fixed by a first fixing part 3 and a second fixing part 2, which will be described later.

By using the laminated napkin 1, the wearer first uses the second napkin 20 located above to absorb the wearer's excretory fluid (hereinafter also referred to as "liquid") such as menstrual blood. Next, the second napkin 20 that has absorbed the liquid is peeled off from the first napkin 10 without replacing the napkin with a new one, and the first napkin 10 that has not absorbed the liquid located below is used. be able to.
In this way, it is possible to easily replace the first napkin 10 that has not absorbed the liquid only by peeling off the second napkin 20 . As a result, even in situations where it is difficult to secure a sufficient place to store a replacement absorbent article, it is difficult to secure sufficient replacement time, and it is difficult to secure a suitable place to store the replacement absorbent article. , the replacement work can be simplified, the replacement time can be shortened, and the number of times of carrying replacement napkins can be reduced, so that the laminated napkin 1 is highly convenient.
In addition, the laminated napkin 1 of the present invention has a configuration (details of which will be described later) that facilitates the peeling operation of the second napkin 20, making it easier to handle. In addition, in this embodiment, the outer shape of the second napkin 20 is a shape imitating an animal, and the motivation to actively perform the replacement work from the second napkin 20 to the first napkin 10 It's becoming
A detailed description will be given below.

[Overall configuration of the first napkin]
As shown in FIGS. 1 and 2, the first napkin 10 forming the lower layer of the laminated napkin 1 includes a main body M1 and a pair of wings W1.

The main body M1 of the first napkin 10 is divided along the longitudinal direction X into a front region F1, an excretory part facing region C1, and a rear region R1.
The excretion part facing region C1 includes a region facing the wearer's excretion part when worn. The excretory part is the vaginal opening when the absorbent article is a napkin. In FIG. 1, the excretory part facing area C1 is an area where the wing part W1 is provided.
The front region F1 is a region arranged in front of the excretory part facing region C1 (wearer's ventral side), and faces the wearer's excretory part in front when worn.
The rear region R1 is a region behind the excretory part facing region C1 (the wearer's back side), and faces the wearer's excretory part rearward when worn.
The term "wearing" as used herein means a state in which a normal proper wearing position (the assumed wearing position of the layered napkin 1) is maintained, and the layered napkin 1 is in a state deviated from the wearing position. does not include

The main body M1 extends along the longitudinal direction X and is fixed to the inner surface of the wearer's clothing when worn by an adhesive portion (not shown) disposed on the non-skin side of the first backsheet 13, which will be described later. The main body M1 has a first absorbent body 14, which will be described later, and has a function of absorbing excrement.

The wing portion W1 is configured to protrude greatly outward in the lateral direction Y in the excretory portion facing region C1. The wing portion W1 is configured by overlapping a first side sheet 15 and a first back sheet 13, which will be described later.
The excretory portion facing region C1 is a region between the base ends Wb of the pair of wing portions W1 in the main body M1. The distance between the base end portions Wb of the wing portions W1 of the first napkin 10 is defined as the length of the first napkin 10 in the lateral direction Y in the excretory portion facing region C1.

As shown in FIG. 2, the first napkin 10 includes a first absorbent body 14, a first topsheet 12, a first backsheet 13, and a pair of first sidesheets 15. . In the main body M1, the first napkin 10 has a configuration in which a first backsheet 13, a first absorbent body 14 and a first topsheet 12 are laminated in the thickness direction Z. As shown in FIG. These structures are appropriately joined and integrated by, for example, embossing with compressed grooves 16, joining by adhesive agent, heat sealing, or the like.
In FIG. 1, dense dots indicate areas of the heat-sealed portions provided on the peripheral edges of the first napkin 10 and the second napkin 20, respectively.

The first absorbent body 14 extends along the longitudinal direction X and is arranged between the first topsheet 12 and the first backsheet 13 . The first absorbent body 14 absorbs the liquid from the side of the skin and diffuses it inside to retain the liquid.
The first absorbent body 14 has, for example, an absorbent core 7 and a core wrap sheet 8 .
The absorbent core 7 may be formed, for example, of a fiber assembly composed of hydrophilic fibers such as pulp fibers, or may have a structure in which the fiber assembly holds a water-absorbing polymer. .
The core wrap sheet 8 covers the absorbent core 7 and has a function of retaining the shape of the absorbent core 7, for example. The core wrap sheet 8 is formed of, for example, tissue paper-like thin and soft paper, liquid-permeable nonwoven fabric, or the like.
In terms of liquid absorbency, the first absorbent body 14 includes a region in which the excretion portion facing region C1 is thicker than the front region and the rear region, has a higher basis weight, and has a thickness within the plane. The basis weight may be non-uniform.

The first surface sheet 12 is configured as a liquid-permeable sheet material and arranged above the first absorbent body 14 in the thickness direction Z. As shown in FIG. In the main body M1, the skin side surface of the first surface sheet 12 and the skin side surface of the first side sheet 15 constitute the skin side surface 10a of the first napkin 10. As shown in FIG.
The first surface sheet 12 is typically composed of nonwoven fabric.
Between the first surface sheet 12 and the first absorbent body 14, improvement in liquid permeability from the first surface sheet 12 to the first absorbent body 14, and A sublayer sheet may be provided from the viewpoint of preventing the absorbed liquid from returning to the first surface sheet 12 .

The first backsheet 13 is arranged below the first absorbent body 14 in the thickness direction Z. As shown in FIG. The first backsheet 13 constitutes the non-skin side 10 b of the first napkin 10 and the non-skin side of the laminated napkin 1 .
The first backsheet 13 is formed of a sheet material having functions such as liquid impermeability, water vapor permeability, and water repellency, for example. As the sheet material, for example, a thermoplastic resin film, a laminate of the film and a nonwoven fabric, a nonwoven fabric, or the like can be used.
The non-skin side 10b of the first napkin 10, which is formed by the non-skin side of the first backsheet 13, is provided with an adhesive portion (not shown) for fixing the main body M1 and the wing portions W1 and the like to clothing. . The wing portion W1 is bent near the base end portion Wb and fixed to the crotch part of the garment when worn by the wing adhesive portion provided on the non-skin side of the wing portion W1.
A colored sheet may be placed between the first backsheet 13 and the first absorbent body 14 from the viewpoint of improving the liquid hiding property when the first napkin 10 is discarded.

A pair of first side sheets 15 are arranged outside the first surface sheet 12 in the lateral direction Y. As shown in FIG. As the material of the first side sheet 15, a sheet material having lower hydrophilicity than the first topsheet 12 is preferable. and a sheet having a laminate structure of a nonwoven fabric and a film material. The first side sheet 15 is joined to the first surface sheet 12 by, for example, an adhesive (not shown).

As shown in FIG. 2, a compression groove 16 is provided on the first surface sheet 12 side of the main body M1 of the first napkin 10 . As shown in FIG. 1, when the laminated napkin 1 is viewed from the side of the skin, the compressed grooves 16 are hidden behind the second napkin 20 and cannot be seen. The compressed groove 16 is typically formed in a substantially oval annular shape having its longitudinal direction in the longitudinal direction X. As shown in FIG.
The pressed grooves 16 are formed by pressing in the thickness direction Z from the first surface sheet 12 side of the main body M1. The compressed groove 16 has a configuration in which the first top sheet 12 and the first absorbent body 14 are integrally recessed toward the first back sheet 13 side. Pressed grooves 16 may be formed according to conventional pressing processes such as embossing with or without heat, or ultrasonic sealing.
A pair of left and right compressed grooves 26, a rear independent compressed groove 27, and a front independent compressed groove 29 provided on the second napkin 20 described below are also formed by compression in the same manner as the compressed grooves 16.

[Overall configuration of the second napkin]
As shown in FIGS. 1 and 2, the second napkin 20 forming the top of the laminated napkin 1 does not have a pair of wings W1.

The second napkin 20 is divided along the longitudinal direction X into a front region F2, an excretory part facing region C2, and a rear region R2.
The boundary between the front region F1 and the excretory part-facing region C1 on the first napkin 10 coincides with the boundary between the front region F2 and the excretory part-facing region C2 on the second napkin 20 .
The boundary between the excretory part-facing region C1 and the rear region R1 on the first napkin 10 coincides with the boundary between the excretory part-facing region C2 and the rear region R2 on the second napkin 20 .
The excretion part facing region C2 includes a region facing the wearer's excretion part when worn. The excretory part is the vaginal opening when the absorbent article is a napkin.
The front area F2 is an area arranged in front of the excretory part facing area C2 (wearer's ventral side), and faces the wearer's excretory part in front when worn.
The rear region R2 is a region located behind the excretory part facing region C2 (the wearer's back side), and faces the wearer's excretion part rearward when worn.

The second napkin 20 has a non-skin side 20b, and the skin side 10a of the first napkin 10, which is another absorbent article, is arranged opposite to the non-skin side 20b and laminated on the first napkin 10. . The non-skin side 10 b of the second napkin 20 is fixed to the skin side 10 a of the first napkin 10 by the first fixing portion 3 and the second fixing portion 2 .
The second napkin 20 has a second absorbent body 24, which will be described later, and has a function of absorbing excrement.

As shown in FIG. 1, the second napkin 20 includes a lateral Y central region (hereinafter referred to as a lateral central region) 30 and lateral regions located on both sides of the lateral central region 30. 31. The lateral central region 30 corresponds to the central portion when the length in the lateral direction Y of the excretory part facing region C2 of the second napkin 20 is divided into three equal parts in the lateral direction Y. As shown in FIG.
In the example of the laminated napkin 1 shown in FIG. 1, the second napkin 20 having no wing portions has a length in the horizontal direction Y that is not equal in width along the vertical direction X. As shown in FIG.
The second napkin 20 has two portions where the length in the lateral direction Y changes from decreasing to increasing when viewed from the front to the rear along the longitudinal direction X. - 特許庁This portion is called a constricted portion, and the two constricted portions are called a front constricted portion and a rear constricted portion, respectively.
In the example shown in FIG. 1, the front constricted portion is located in the front region F2, the rear constricted portion is located in the rear region R2, and the region between the two constricted portions of the second napkin 20 is substantially the excretory portion. Located in the facing area C2.
In the example shown in FIG. 1, the portion corresponding to the excretory portion facing region C2 in the region between the two constricted portions has the same width along the longitudinal direction X in the lateral direction Y. As shown in FIG. In the second napkin 20, the length D2 (see FIG. 3) in the lateral direction Y in the excretory portion facing region C2 is the maximum width portion where the length in the lateral direction Y of the region in front of the front constricted portion is maximum. It is shorter than the length D1 in the horizontal direction Y (see FIG. 3) and the length D3 in the horizontal direction Y of the maximum width portion of the region behind the rear constricted portion (see FIG. 3). In the second napkin 20, the maximum width portion of the region forward of the front constricted portion is, in other words, the maximum width portion of the front region F2, and the maximum width portion of the region behind the rear constricted portion is, in other words, the rear This is the maximum width portion of the region R2.

The second napkin 20 has side flaps SF2 formed by laminating a second side sheet 25 and a second back sheet 23 over the entire length in the vertical direction X. As shown in FIG. In the second napkin 20, the side flaps SF2 are portions extending in the lateral direction Y from the second absorbent body 24 in plan view.

As shown in FIG. 1, the second napkin 20 includes a longitudinal direction X central region (hereinafter referred to as a longitudinal central region) 32, and front regions 33 positioned on the front and rear sides of the longitudinal central region 32, respectively. a posterior region 34; The longitudinal central region 32 corresponds to the central portion when the longitudinal X total length of the second napkin 20 is divided in the longitudinal direction X into three equal parts.

As shown in FIG. 2, the second napkin 20 comprises a second absorbent body 24, a second topsheet 22, a second backsheet 23, and a pair of second sidesheets 25. . The second napkin 20 has a configuration in which a second backsheet 23, a second absorbent body 24 and a second topsheet 22 are laminated in the thickness direction Z. As shown in FIG. These structures are appropriately joined and integrated by, for example, embossing with the compressed grooves 26, the rear independent compressed grooves 27, and the front independent compressed grooves 29, or by bonding with an adhesive, heat sealing, or the like.

The second absorbent body 24 extends along the longitudinal direction X and is arranged between the second topsheet 22 and the second backsheet 23 . The second absorbent body 24 absorbs the liquid from the side of the skin and diffuses it inside to retain the liquid. In the example shown in FIGS. 1 and 2, the lateral Y length of the second absorbent body 24 is substantially the same as the lateral Y length of the first absorbent body 14 of the first napkin 10 .
The second absorbent body 24 has, for example, an absorbent core 5 and a core wrap sheet 6 .
The structures of the absorbent core 5 and core wrap sheet 6 are the same as those of the absorbent core 7 and core wrap sheet 8 described above.

The second surface sheet 22 is configured as a liquid-permeable sheet material and arranged above the second absorbent body 24 in the thickness direction Z. As shown in FIG. In the main body M1, the skin side surface of the second top sheet 22 and the skin side surface of the second side sheet 25 constitute the skin side surface 20a of the second napkin 20. As shown in FIG.
The second topsheet 22 is typically composed of nonwoven fabric.
A sublayer sheet may be provided between the second topsheet 22 and the second absorbent body 24 .

The second backsheet 23 is arranged below the second absorber 24 in the thickness direction Z. As shown in FIG. The second backsheet 23 constitutes the non-skin side 20b of the second napkin 20 . In the laminated napkin 1, the second napkin 20 is arranged such that the second backsheet 23 and the skin side surface 10a of the first napkin are positioned facing each other.
The second backsheet 23 may be formed of a sheet material having functions such as liquid impermeability, water vapor permeability and water repellency, or may be formed of a sheet material having a liquid permeability function. good. As the sheet material, for example, a thermoplastic resin film, a laminate of the film and a nonwoven fabric, a nonwoven fabric, or the like can be used. Since the second napkin 20 is placed on top of the first napkin 10, which is another napkin, even if the liquid permeates the second napkin 20 downward in the Z direction, the first napkin 10 Since the liquid can be absorbed by the second backsheet 23, the second backsheet 23 may be liquid-permeable, and the laminated napkin 1 with good air permeability that does not get stuffy can be obtained.
A colored sheet may be placed between the second backsheet 23 and the second absorbent body 24 from the viewpoint of improving liquid concealability when the second napkin 20 is discarded.

A pair of second side sheets 25 are arranged outside the second top sheet 22 in the lateral direction Y. As shown in FIG. As the material of the second side sheet 25, a sheet material having lower hydrophilicity than the second topsheet 22 is preferable. and a sheet having a laminate structure of a nonwoven fabric and a film material. The second side sheet 25 is joined to the second top sheet 22 by, for example, an adhesive (not shown).
The napkin may have a structure in which the second absorbent body 24 is arranged between the second top sheet 22 and the second back sheet 23 without providing the second side sheet 25 .

As shown in FIGS. 1 and 2 , the second napkin 20 is provided with a compression groove 26 , a rear independent compression groove 27 and a front independent compression groove 29 on the side of the second topsheet 22 . In the second napkin 20, the compressed grooves 26 are formed in a pair of linear shapes extending longitudinally in the longitudinal direction X from part of the front region F2 through the excretory part facing region C2 to part of the rear region R2. be done. The rear independent compressed grooves 27 are located behind the pair of compressed grooves 26, extend in the lateral direction Y, and are formed in a curved shape convex rearward.
More detailed structures of the rear independent compressed grooves 27 and the front independent compressed grooves 29 will be described later.

(External shape of the second napkin)
As shown in FIG. 1, the second napkin 20 has a front recess (recess) 40 that is recessed toward the inside in the longitudinal direction X at a front end portion 20f in the longitudinal direction X, and a lateral It has a front first protrusion (first protrusion) 41 and a front second protrusion (second protrusion) 42 located on both sides in the Y direction and convex outward in the vertical direction X. In other words, the front recess 40 is positioned between the front first protrusion 41 and the front second protrusion 42 in plan view.
The second napkin 20 has a rear recess (recess) 50 that is recessed toward the inside in the longitudinal direction X at the rear end 20r in the longitudinal direction X, and is positioned on both sides in the lateral direction Y across the rear recess 50. , a rear first protrusion (first protrusion) 51 and a rear second protrusion (second protrusion) 52 which are convex outward in the longitudinal direction X. In other words, the rear recess 50 is positioned between the rear first protrusion 51 and the rear second protrusion 52 in plan view.
Hereinafter, when there is no need to distinguish between front recesses and rear recesses, they may simply be referred to as "recesses." When there is no need to distinguish between the first front protrusion and the first rear protrusion, they may simply be referred to as the "first protrusion." Similarly, when there is no need to distinguish between the second front protrusion and the second rear protrusion, the term "second protrusion" may be used. Moreover, when there is no need to distinguish between the first front protrusion, the second front protrusion, the first rear protrusion, and the second rear protrusion, they may simply be referred to as the "protrusion".

In the layered napkin 1, the areas where the recesses 40 and 50 are located are areas where the second napkin 20 does not exist and only the first napkin 10 exists in plan view.

In this specification, the range of the front first projecting portion 41 and the front second projecting portion 42 is assumed to be parallel to the lateral direction Y passing through the innermost portion in the longitudinal direction X of the front recessed portion 40 in the second napkin 20. It is defined as a portion outside the imaginary line L1 in the longitudinal direction X when the line L1 is drawn.
An imaginary line L2 parallel to the horizontal direction Y passing through the innermost portion in the longitudinal direction X of the rear recessed portion 50 in the second napkin 20 is drawn in the range of the rear first projecting portion 51 and the rear second projecting portion 52. It is defined as a portion outside the virtual line L2 in the vertical direction X at the time.

The front first projecting portion 41 and the front second projecting portion 42 have non-fixed regions 41b and 42b on their peripheral edge portions where the first napkin 10 and the second napkin 20 are not fixed in plan view.
In this specification, the "peripheral edge" of the first front protrusion 41 (second front protrusion 42) refers to the peripheral edge 41a (42a) that forms the outline of the first front protrusion 41 (second front protrusion 42). ), and the distance from the peripheral edge 41a (42a) is within 5 mm. In other words, "having a non-fixed region on the peripheral edge" means that there is a region on the peripheral edge where the fixed portion is not located, and the front first projecting portion 41 and the front second projecting portion 42 have the entire peripheral edge is not fixed by the fixed part.
By having the non-fixed region 41b (42b), the first front protrusion 41 (second front protrusion 42) is provided between the first napkin 10 and the second napkin 20 that are not fixed to each other. can be put in and the front 1st protrusion part 41 (front 2nd protrusion part 42) can be easily pinched.

Similarly, the rear first projecting portion 51 and the rear second projecting portion 52 have non-fixed regions 51b and 52b, to which the first napkin 10 and the second napkin 20 are not fixed, on the peripheral edge portions in plan view. have
In this specification, the “peripheral edge” of the first rear protrusion 51 (second rear protrusion 52) refers to the peripheral edge 51a (52a) that forms the outline of the first rear protrusion 51 (second rear protrusion 52). ), and the distance from the peripheral edge 51a (52a) is within 5 mm. In other words, in the rear first projecting portion 51 and the rear second projecting portion 52, the entire peripheral edge portion is not fixed by the fixing portion.
By having the non-fixed regions 51b and 52b, a finger can be inserted between the first napkin 10 and the second napkin 20 that are not fixed to each other in the first rear projection 51 and the second rear projection 52. , the rear first projecting portion 51 and the rear second projecting portion 52 can be easily picked up.

The first front protrusion 41 , the second front protrusion 42 , the first rear protrusion 51 , and the second rear protrusion 52 function as grips when peeling off the second napkin 20 . The grip portion serves as a starting point for peeling off the second napkin 20 .

Since the second napkin 20 has the front recess 40 (rear recess 50), when the second napkin 20 is peeled off from the first napkin 10, it corresponds to the front recess 40 (rear recess 50) in plan view. It becomes easy to press the part of the first napkin 10 positioned at the bottom with the fingers of one hand.
By pressing the portion of the first napkin 10 corresponding to the front recess 40 (rear recess 50) with a finger, the front first protrusions 41 (rear first protrusions 51) on the left and right of the recess and the front The non-fixed regions 41b and 42b (51b and 52b) of the second projecting portion 42 (rear second projecting portion 52) that are not fixed to the first napkin 10 are easily lifted from the first napkin 10, and the projecting portion The second napkin 20 can be easily picked up and peeled off from the first napkin 10.例文帳に追加Moreover, by pressing the first napkin 10 with a finger, it is possible to prevent the first napkin 10 from being peeled off from the shorts when the second napkin 20 is peeled off.
From the viewpoint of making it easier to hold down the first napkin 10 positioned corresponding to the recess, the shape of the recess in plan view is, as shown in FIG. is preferably

In the laminated napkin 1, the second napkin 20 has a plurality of protrusions that serve as a grip, so that the wearer can see the diffusion of liquid such as menstrual blood on the second napkin 20, which protrusion It is possible to select whether to peel off the second napkin 20 by pinching the part. That is, the peeling operation can be performed by selecting the projecting portion that is less soiled with menstrual blood or the like.

In the laminated napkin 1 , the front first protrusion 41 and the front second protrusion 42 are discontinuous in the lateral direction Y due to the presence of the front recess 40 . As a result, in the front region F2, the liquid that has diffused to one protrusion diffuses in the lateral direction Y and is less likely to diffuse to the other protrusion, thereby further reducing the probability of pinching a dirty protrusion with a finger. can be done. Similarly, in the rear region R2, the rear first protrusion 51 and the rear second protrusion 52 are discontinuous in the lateral direction Y due to the existence of the rear recess 50, and thus the dirty protrusion is formed. It is possible to further reduce the probability of pinching the part with fingers.

The size of the concave portion (corresponding to the area between the first protrusion and the second protrusion), the first protrusion, and the second protrusion in plan view is the length of the second napkin 20 in the lateral direction Y. It is appropriately set depending on the length of the sheath in the vertical direction X and the like.
Referring to FIG. 3, when peeling off the second napkin 20, the fingers of one hand can easily press the first napkin 10 corresponding to the recesses, and the first and second protrusions 41 and 42 ( 51 and 52) to facilitate the peeling operation, the area of the front recess 40 (rear recess 50) is preferably 30 mm ² or more, more preferably 60 mm ² or more. Here, as shown in FIG. 3, the front recess 40 (rear recess 50) is defined by an imaginary line connecting the frontmost (rear) portions of the first and second protrusions 41 and 42 (51 and 52). When L3 (L4) is drawn, it is a region surrounded by the virtual line L3 (L4) and the front end portion 20f (rear end portion 20r) of the second napkin 20, and the area of the recess is the area of the region. refers to area. In FIG. 3, the area is indicated by diagonal lines slanting downward to the right.
When peeling the second napkin 20, the first napkin 10 is easy to hold with a finger, and the protrusion is easy to pick up to facilitate the peeling work, and the liquid absorption area of the second napkin 20 is improved. From the viewpoint of securing and from the viewpoint of suppressing a foreign object feeling due to unexpected curling during mounting of the protrusion, the length of the recess 40 (50) in the vertical direction X, in other words, the first and second protrusions 41 and 42 The length a(b) in the vertical direction X of (51 and 52) is preferably 5 mm or more and 20 mm or less, more preferably 8 mm or more and 15 mm or less.
When peeling off the second napkin 20, the area of the projection is preferably 50 mm ² or more, more preferably 100 mm ² or more, from the viewpoint of facilitating the peeling work by facilitating the pinching of the projection.

In the present embodiment, the concave portion, the first projecting portion, and the second projecting portion are provided on both the front end portion 20f and the rear end portion 20r, but only one of them may be provided.
By providing both the front end portion 20f and the rear end portion 20r, for example, even when the front region F2 of the second napkin 20 is soiled with menstrual blood, the peeling operation can be performed from the rear region R2. When the napkin 20 is peeled off, it is possible to expand the options of the grip portion, and the workability is further improved.

As described above, in the laminated napkin 1, at least one of the front end portion 20f and the rear end portion 20r of the second napkin 20 located in the upper layer has a recess, and the recess is located in the lateral direction Y across the recess. By providing the first projecting portion and the second projecting portion, peeling workability can be improved and handling can be facilitated.

(size of second napkin)
In the laminated napkin 1, the dimension in the longitudinal direction X of the second napkin 20 may be the same as the dimension in the longitudinal direction X of the first napkin 10, may be smaller, or may be larger. The second napkin 20 may be positioned so as to overlap at least the excretory part facing region C1 of the first napkin 10 in the longitudinal direction X.

The liquid is mainly absorbed around the excretory part facing region. In the laminated napkin 1, from the viewpoint of preventing the liquid from diffusing to the first napkin 10, the second napkin 20 extends in the longitudinal direction X from at least a part of the front region F1 of the first napkin 10 to the excretory part. It preferably extends to at least a portion of the rear region R1 through the facing region C2.
From the viewpoint of making the peeling operation of the second napkin 20 easier, as shown in FIG. The longitudinal X front end of the second napkin 20 is preferably positioned rearward from the longitudinal X front end of the first napkin 10 , and the longitudinal X rear end of the second napkin 20 is positioned longitudinally X rearward of the first napkin 10 . It is preferably located forward from the edge.
With such a configuration, it is easy to grasp the position of the front end portion or the rear end portion of the second napkin 20 in plan view, and the first protrusion portion that serves as a grip portion when peeling the second napkin 20 And the second projecting portion can be easily found, it becomes easier to pick up with fingers, the peeling work is easier, and the handling of the laminated napkin 1 is easier. In addition, since it is possible to visually grasp the presence of both the first napkin 10 and the second napkin 20 in the laminated napkin 1 in plan view, two napkins are laminated to the wearer. It can give a sense of security against leakage due to being exposed.
The length of the first napkin 10 in the longitudinal direction X is preferably 18 cm or more and 40 cm or less, more preferably 20 cm or more and 35 cm or less. The length of the second napkin 20 in the longitudinal direction X is preferably 13 cm or more and 28 cm or less, more preferably 15 cm or more and 26 cm or less.

In the laminated napkin 1, the length in the lateral direction Y of the second napkin 20 may be the same as the length in the lateral direction Y of the first napkin 10, may be smaller, or may be larger. .
In the excretory part facing regions C1 and C2, when the length of the second napkin 20 in the lateral direction Y is shorter than the length of the first napkin 10 in the lateral direction Y, the laminated napkin 1 is stretched from the outside in the lateral direction Y to the inside. When an external force directed toward the second napkin 20 is applied, the external force is less likely to act on the second napkin 20, and curling and twisting are less likely to occur.
On the other hand, when the laminated napkin 1 is worn before the second napkin 20 is peeled off, the liquid reaches the side portion of the excretion part-facing region C1 of the first napkin 10 in the excretion part-facing region C2 where liquid is mainly absorbed. From the viewpoint of preventing diffusion of the second napkin 20 , it is preferable that the length in the lateral direction Y of the second napkin 20 is the same as or longer than that of the first napkin 10 .
When the length in the lateral direction Y of the second napkin 20 is greater than the length in the lateral direction Y of the first napkin 10, from the viewpoint of reducing the wearing discomfort in the side portion of the layered napkin 1, the first It is preferable that the second absorbent body 24 is not positioned at a portion of the second napkin 20 that protrudes from the excretory part facing region C1 of the napkin 10 of FIG.

In the example shown in FIG. 1, in the second napkin 20, the length D2 in the lateral direction Y of the excretory part-facing region C2 of the first napkin 10 corresponds to the length D2 in the lateral direction Y in the excretory part-facing region C2 of the first napkin 10 (a pair of distance between base ends Wb).
On the other hand, in the second napkin 20, the length in the horizontal direction Y of the region near the front (rear) of the front constricted portion (rear constricted portion) in the front region F2 (rear region R2) is the first napkin 10 , and in this region, the side edges of the first napkin 10 and the side edges of the second napkin 20 substantially overlap in plan view. Here, "about the same" means that when a virtual line parallel to the horizontal direction Y is drawn on the laminated napkin 1, the length of the first napkin 10 in the horizontal direction Y and the length of the second napkin 20 on the virtual line is less than 2 mm in length in the transverse direction Y.
In the example shown in FIG. 1, the length D1 of the maximum width portion of the front region F2 of the second napkin 20 is approximately the same as the length of the front region F1 of the first napkin 10 in the lateral direction Y, and the second The length D3 of the maximum width portion of the rear region R2 of the napkin 20 is approximately the same as the length of the rear region R1 of the first napkin 10 in the lateral direction Y. As shown in FIG.
While suppressing liquid contamination near the side part of the first napkin 10 as much as possible, it suppresses folding of the side part of the second napkin 20 due to folding of the wing part W1 in the state of the package of the laminated napkin 1. - 特許庁Since it is possible, the above configuration is preferable.
That is, from the viewpoint of suppressing liquid contamination near the side portions of the first napkin 10, as shown in FIG. It is preferably about the same as the length of the napkin 10 in the horizontal direction Y.
From the viewpoint of suppressing the folding of the side portion of the second napkin 20 due to the folding of the wing portion W1 in the state of the laminated napkin 1 package, the second napkin 20 is provided as shown in FIG. The length D2 in the lateral direction Y of the excretory part facing region C2 is preferably the same as or shorter than the lateral direction Y length of the first napkin 10 . By suppressing the folding of the side of the second napkin 20 in the state of the package, the feeling of foreign matter during wearing due to the folding of the side of the second napkin 20 and liquid leakage due to unfavorable deformation, etc. can be suppressed. In the area C2 facing the excretory part, while suppressing folding of the side part of the second napkin 20 in the state of the package, from the viewpoint of suppressing liquid staining near the side part of the first napkin 10 when worn , The value obtained by subtracting the length D2 of the second napkin 20 in the lateral direction Y from the length of the lateral direction Y of the first napkin 10 (the distance between the pair of base ends Wb) is preferably 0 mm or more and 6 mm or less. More preferably, the length of the second napkin 20 in the horizontal direction Y may be set to be 1 mm or more and 4 mm or less.

(Position of recess in second napkin)
In the second napkin 20, the front recess 40 or the rear recess 50 may be positioned in the lateral central region 30 as shown in FIG. preferable.
With such a configuration, the front first protrusion 41 and the front second protrusion 42 (or the rear first protrusion 51 and the rear The sizes of the second protrusions 52) can be made substantially equal, and the peeling operation can be stably performed regardless of which protrusion is selected. Therefore, according to the condition of menstrual blood contamination when the second napkin 20 is peeled off, the options for the projecting portion to be the start point of the peeling work are widened, and the selection is facilitated.

Further, as shown in FIG. 1, in the laminated napkin 1, in a plan view, regions corresponding to the recessed portions 40 (or 50), that is, the first projecting portion 41 (or 51) and the second projecting portion 42 (or 52) ), the first absorbent body 14 is preferably located in the area where the second napkin 20 does not exist.
Since the first absorbent body 14 having high rigidity is positioned between the first protrusion and the second protrusion in this way, the protrusion is pinched and the second napkin 20 located above is peeled off. When doing so, deformation and tearing of the first napkin 10 are less likely to occur, and handling of the laminated napkin 1 becomes easier.
From the viewpoint of ease of peeling of the second napkin 20, the first absorbent body 14 located in the recess 40 (or 50) in plan view, or the recess 40 (or 50) and the recess 40 (or 50) It is preferable that the length in the vertical direction X of the first absorbent body 14 protruding forward (rearward) is 3 mm or more.
In the example shown in FIG. 1, in the front regions F1 and F2, the length of the portion where the length in the longitudinal direction X of the first absorbent core 14 located in the front recess 40 is maximum in plan view is the front first It is shorter than the length a in the vertical direction X of the first projecting portion 41 and the second front projecting portion 42 .
In the rear regions R1 and R2, in plan view, the first napkin 10 is located in the entire area of the rear recess 50, and extends further rearward than the rear first projecting portion 51 and the rear second projecting portion 52. and located.

(Shape of concave portion, first and second protrusions)
As shown in FIG. 1, the recess, the first protrusion and the second protrusion may be shaped to resemble an animal.
In the example shown in FIG. 1 , in the front region F2 of the second napkin 20, the front first protrusion 41 and the front second protrusion 42 located on both left and right sides of the front recess 40 recall the ears of an animal (for example, a bear). and the shape of the front region F2 is reminiscent of an animal's head.
In addition, in the rear area R2 of the second napkin 20, the rear first protrusion 51 and the rear second protrusion 52 located on both left and right sides of the rear recess 50 are reminiscent of animal legs.
As a result, when the laminated napkin 1 is viewed from the skin side 10a, the outer shape of the second napkin 20 reminds us of an animal, thereby relieving melancholy during menstruation.

(Front independent compression groove and rear independent compression groove)
As shown in FIG. 1, in the front region F2 of the second napkin 20, a front independent compression groove 29 may be provided in the lateral central region 30 near the longitudinal direction X region of the front recess 40. As shown in FIG. In addition, in the second napkin 20 of the present embodiment, an example in which the front independent compressed groove 29 is composed of a plurality of independent compressed groove elements 29a is given, but even if it is an independent compressed groove consisting of one independent compressed groove element good.
Here, the term “neighborhood” refers to a range in which the distance from the virtual line L1 is 40% or less of the total length in the longitudinal direction X of the second napkin 20 .
In addition, the term "independent compressed grooves" indicates compressed grooves that are separated from the pair of linear compressed grooves 26 and that the distance from the compressed grooves 26 is 3 mm or more.
The front independent compressed grooves 29 are located near the front of the pair of linear compressed grooves 26 in plan view.
Since the compressed grooves 26 and the front independent compressed grooves 29 have a higher density of fibers than the surrounding area, they can absorb and retain the liquid excreted by capillary action.
In the second napkin 20, the liquid absorbed in the excretory part facing region C2 and moved forward in the longitudinal direction X is absorbed and held by the independent compressed grooves 29 and further by the compressed grooves 26, so that the second It becomes difficult to transfer to the front end portion 20f of the napkin 20, and the liquid transfer to the region outside the second napkin 20 is easily controlled. As a result, after peeling off the second napkin 20, the first napkin 10 can be used in a clean state without absorbing liquid.

Further, as shown in FIG. 1, the front independent squeeze grooves 29 may be shaped and arranged to evoke the face of an animal.
In the example shown in FIG. 1, the front independent compression grooves 29 are composed of three small circular independent compression groove elements 29a imitating the eyes and nose of an animal, and two circular arc-shaped elements 29a imitating the mouth of an animal. and two linear independent squeeze groove elements 29a.
By adopting such a configuration, it becomes easier to recall the shape of an animal as well as the recesses and protrusions that remind us of the shape of an animal, and the melancholy feeling during menstruation is further alleviated.

Furthermore, in the 2nd napkin 20 of this embodiment, the independent compression groove (rear independent compression groove 27) is provided also in rear area|region R2. The front independent compressed grooves 29 of the front region F2 and the rear independent compressed grooves 27 of the rear region R2 may have the same or different shape or arrangement. In the second napkin 20 shown in FIG. 1, the rear independent compressed grooves 27 in the rear region R2 are different in shape and arrangement from the front independent compressed grooves 29 in the front region F2. When the functions (deodorant, antibacterial performance, fragrance, etc.) and absorption performance (absorption capacity, absorption speed, etc.) are different, it is easy to distinguish between before and after. On the other hand, if both the regions F2 and R2 have the same shape and arrangement, the design is further improved, which is preferable from the point of alleviating melancholy during menstruation.

(Second back sheet)
From the viewpoint of making the peeling operation of the second napkin 20 easier, as shown in FIG. Preferably the color is visible.
In FIG. 1, coarse dots indicate the color of the second backsheet 23 that is visible when the laminated napkin 1 is viewed from the skin side 10a. In the second napkin 20, the areas indicated by coarse dots and the heat-sealed areas indicated by dense dots correspond to non-absorbent areas 37 where the second absorbent 24 is not present. The second absorbent body 24 does not exist in the horizontal direction Y side parts and the vertical direction X front and rear end parts in plan view, and the surrounding area surrounding the second absorbent body 24 becomes the absorbent body absent area 37 . ing.
The second topsheet 22 and the second sidesheet 25 are light transmissive, and when the laminated napkin 1 is viewed from the skin side 10a, the color of the second backsheet 23 is the color of the second backsheet 23 in the absorber absent region 37. is transparent and visible. In the second napkin 20, the area where the second absorbent body 24 exists in a plan view, due to the presence of the second absorbent body 24, the color of the second backsheet 23 is changed from the second topsheet 22 side to Not visible.

In the second napkin 20, the second topsheet 22 and the second sidesheet 25 are typically white. In this embodiment, the second backsheet 23 is colored in its entirety, for example pink. It should be noted that the second backsheet 23 need not be entirely colored. For example, the second backsheet 23 may be partially colored, or may have a colored pattern, provided that the coloring is visible in the region corresponding to the absorber-absent region. good.

With the above configuration, when the laminated napkin 1 is viewed from the skin side 20a of the second napkin 20, the outer contour of the second napkin 20 is easily visible, and the second napkin 20 can be peeled off. It is possible to easily find the first protrusion and the second protrusion that will serve as the filling part. This makes the peeling work easier and the handling of the laminated napkin 1 easier.
In addition, when the second napkin 20 is rolled into a roll and discarded, the second backsheet 23 is typically positioned on the outer side of the roll, so the second backsheet 23 is colored. As a result, menstrual blood becomes less visible from the second backsheet 23 side, and discomfort when discarding the second napkin 20 is reduced.

As used herein, “colored” means excluding colorless and transparent and excluding colors (white) having an L ^* value of 95 or higher in the CIE-L ^* a ^* b ^* color system. "White" means a color with an L ^* value of 95 or greater.
The L ^* value in the CIE-L ^* a ^* b ^* color system can be measured with a color difference meter. For example, it can be obtained by measuring reflected light from the sheet using a handheld spectrophotometer NF333 (trade name) manufactured by Nippon Denshoku Industries Co., Ltd. under the measurement conditions of light source C and viewing angle of 2°. At this time, it is preferable to use a white plate having an L ^* value of 95 or more as the background plate for the measurement.

In this specification, in the laminated napkin 1, "visible" the color of the second backsheet 23 from the side of the second topsheet 22 means illuminance (brightness of light received by the surface illuminated by the light source). ) is 100 to 2000 lx, when the skin side of the laminated napkin 1 is exposed to light from a white light source, the observer sees the second from the second topsheet 22 side of the laminated napkin 1. It means that the color of the back sheet 23 can be visually recognized. Here, the reason why the illuminance is set in the above range is to make the illuminance equivalent to the general indoor illuminance conditions in daily life, which is illuminated by indoor lighting using fluorescent lamps, LEDs (Light Emitting Diodes), and the like. be.

As shown in FIG. 3, the second napkin 20 may be provided with a design that evokes the rear view of an animal on its non-skin side 20b (the non-skin side of the second backsheet 23). In the example shown in FIG. 3, the non-skin side 20b is provided with a design 60 of an animal's tail.
When the second napkin 20 is peeled off from the first napkin 10, the pattern 60 of the animal's tail is visible, thereby further reducing the depressive feeling during menstruation. In addition, since the pattern 60 becomes visible only after the second napkin 20 is peeled off, the pattern provided on the non-skin side 20b of the second napkin 20 performs the peeling operation of the second napkin 20. Be motivated.

Moreover, the skin side surface 10a of the first napkin 10 may be formed with a compressed groove having a shape reminiscent of an animal. As a result, when the first napkin 10 is peeled off the second napkin 20, the pressed grooves having a shape reminiscent of an animal can be visually recognized, and the depressed feeling during menstruation can be further alleviated.

In this way, the pattern reminiscent of animals provided on the non-skin side 20b of the second napkin 20 and the skin of the first napkin 10, which were not visible in the form of the laminated napkin 1 before the second napkin 20 was peeled off. By configuring the compressed grooves in the shape reminiscent of an animal provided on the side surface 10a to be visible when the second napkin 20 is peeled off, it is possible to motivate the operator to peel off the napkin.

(Positional relationship between the wing portion of the first napkin and the second napkin)
In the laminated napkin 1 of this embodiment, the first napkin 10 located below has the wing portion W1, and the second napkin 20 located above has no wing portion. is not limited to
For example, both the first napkin and the second napkin may have wings, or neither may have wings.
Also, the first napkin located below may not have the wing portion, and the second napkin located above may have the wing portion. In the case of such a laminated napkin, when worn, the lateral side edges of the region facing the excretory portion of the first napkin are covered with the wing portions of the second napkin, and the excretory portion of the first napkin is covered. It is easy to suppress contamination of both lateral side edges of the opposing region.

When the first napkin 10 has the wing portion W1, the second napkin 20 does not have a region overlapping the wing portion W1 in plan view, or the region overlapping the wing portion W1 has an area smaller than that of the wing portion W1. Side flaps SF2 are preferably provided.
With such a configuration, the rigidity of the wing portions W1 of the laminated napkin 1 can be kept low. As a result, the wing portions W1 can be easily folded back when worn on clothes, making the folding work easier, and the wing portions W1 are less likely to return to the original shape before being folded back, preventing the wing portions W1 from peeling off from the clothes while being worn. become difficult. In addition, since the second napkin 20 can be easily peeled off after use, it is possible to prevent the first napkin 10 from being unintentionally peeled off from the shorts.
In the example shown in FIG. 1, the second napkin 20 does not have a wing portion, and the width of the second napkin 20 is slightly smaller than the width of the first napkin 10. The napkin 20 does not have a region that overlaps the wing portion W1 of the first napkin 10 in plan view.
Here, the area of the wing portion W1 of the first napkin 10 refers to the area of the wing portion W1 defined by the base end portion Wb. The area of the side flap SF2 of the second napkin 20 refers to the area of the region where the side flap SF2 overlaps the wing portion W1 of the first napkin 10 in plan view.

[Structure of first fixing part and second fixing part]
In FIG. 1, the outlines of the first fixing portion 3 and the second fixing portion 2 are indicated by dashed lines and the insides thereof are indicated by oblique lines.
In the laminated napkin 1, the first fixing part 3 and the second fixing part 2 fix the first napkin 10 and the second napkin 20 in a detachable manner.

(First fixed part)
The first fixing portion 3 is provided in at least one of the lateral direction Y side regions 31 of at least one of the front region F2 and the rear region R2.
By positioning the first fixing portion 3 in at least one of the front region F2 and the rear region R2, the first napkin 10 is attached to the first napkin 10 together with the second fixing portion 2 that is shifted in the vertical direction X from the first fixing portion 3. 2 napkins 20 can be fixed and displacement in the lateral direction Y of the second napkin 20 can be suppressed.
From the viewpoint of further suppressing the displacement of the second napkin 20 in the lateral direction Y and suppressing the curling and folding of each protrusion (described later) located at the front and rear ends of the second napkin 20, the front region F2 and the rear region It is preferable that the pair of first fixing portions 3 be positioned on both sides of R2, in other words, the first fixing portions 3 be positioned at the four corners of the second napkin 20 .
In the example shown in FIG. 1, the first fixing parts 3 are positioned at the four corners of the second napkin 20, respectively, and four in total are provided. In this example, the four first fixing portions 3 are provided symmetrically about the longitudinal center line CL1.

When the laminated napkin 1 is worn, twisting forces are likely to be applied to the front regions F1 and F2 and the rear regions R1 and R2. As in the present embodiment, in the front region F2 and the rear region R2, the first napkin 10 and the second napkin 20 are fixed by a pair of first fixing portions 3 spaced apart in the lateral direction Y. Thus, when a twisting force is applied, the force is buffered between the pair of first fixing portions 3 to which the napkins 10 and 20 are not fixed, and the force applied to the first fixing portions 3 is reduced. This effectively suppresses peeling of the second napkin 20 from the first napkin 10 when worn.

The first fixing portion 3 may have a perfect circular shape in a plan view as shown in FIG. 1, or may have another shape such as an elliptical shape or a polygonal shape.

The first fixing portion 3 may be made of a hook member provided on the non-skin side 20b of the second napkin 20 and made up of a plurality of locking projections. By hooking the engaging projections of the hook material to the non-woven fabric fibers of the sheet (the first top sheet 12 and the first side sheet 15) located on the skin side 10a of the first napkin 10 and binding them together, the second The non-skin side 20b of the first napkin 20 is fixed to the skin side 10a of the first napkin 10. As shown in FIG. Then, in the first fixing part 3, the second napkin 20 is peeled off so that the first napkin 10 and the second napkin 20 are separated from each other, and the hook material is caught by the non-woven fabric fibers. By releasing the bond, the second napkin 20 can be easily peeled off from the first napkin 10 .
Also, the first fixing portion 3 may be made of an adhesive such as a hot-melt adhesive provided on the non-skin side 20b of the second napkin 20 .
Further, the first fixing portion 3 may be fixed by pressing by pressing. Pressing includes embossing with or without heat, ultrasonic sealing, and the like. For example, the first fixing part 3 arranges the second napkin 20 on the first napkin 10, and heats or accompanies heat in the thickness direction Z from the second napkin 20 side toward the first napkin 10. It may be formed by not embossing.
In either configuration, the first fixing portion 3 is a region with higher rigidity than the surrounding region.

From the viewpoint of ease of handling when the second napkin 20 is discarded, it is preferable that the first fixing portion 3 is composed of a compression fixing or a hook material. In particular, when the first fixing portion 3 is subjected to compression processing, it is possible to realize fixability at the time of attachment and releasability after attachment with a small area, which is preferable from the viewpoint of good texture and cost advantage. In the present embodiment, an example is given in which the first fixing portion 3 is configured by pressing and fixing by embossing accompanied by heat.

When peeling the second napkin 20, the first napkin and the second napkin are not fixed to the peripheral edge of the protrusion from the viewpoint of making it easier to pick up the protrusion and facilitate the peeling work. A region is provided. The length of the non-fixed region in the lateral direction Y is preferably 5 mm or more, more preferably 8 mm or more.

In the example shown in FIG. 1, in a plan view, in the front region F2 of the second napkin 20, the first fixing portion 3 passes through the virtual line L1 in the vertical direction X and extends outside the virtual line L1 in the vertical direction X. and the region of the front first projecting portion 41 and the second front projecting portion 42 located at , and the region located inside in the longitudinal direction X.
In the rear region R2 of the second napkin 20, the first fixing portion 3 passes through the imaginary line L2 in the longitudinal direction X, and the rear first projecting portion 51 and the rear first projecting portion 51 located outside the imaginary line L2 in the longitudinal direction X It is located across both the area of the second projecting portion 52 and the area located inside in the longitudinal direction X. As shown in FIG.
Each first fixing part 3 is located near both side edges of the second napkin 20 .
From the viewpoint of effectively suppressing curling and folding in the front region F2 of the second napkin 20, in the laminated napkin 1, at least a part of the first fixing portion 3 is more than the virtual line L1 in plan view. It is preferably located in the front area (the front first projecting portion 41 and the front second projecting portion 42), and from the viewpoint of maintaining the ease of picking up when the second napkin 20 is discarded, the first fixing portion 3 is located on the virtual line L1. It is preferable that it overlaps with this in plan view.
From the viewpoint of effectively suppressing curling and folding in the rear region R2 of the second napkin 20, in the laminated napkin 1, at least a part of the first fixing portion 3 is more than the virtual line L2 in plan view. It is preferably located in the rear area (the first rear protrusion 51 and the second rear protrusion 52), and from the viewpoint of maintaining the ease of picking up the second napkin 20 when discarding, the first fixing part 3 is located on the virtual line L2. It is preferable that it overlaps with this in plan view.
From the viewpoint of improving the fixation of the first napkin 10 and the second napkin 20 and facilitating the peeling of the second napkin 20 from the first napkin 10, the area of each first fixing part 3 is It is preferably 0.2 mm ² or more and 100 mm ² or less, more preferably 0.5 mm ² or more and 50 mm ² or less. In the example shown in FIG. 3, the first fixing portion 3 has a circular shape, but the shape is not limited to this.

(Second fixed part)
The second fixing part 2 is located in each of the lateral direction Y side areas 31 in the excretory part facing area C2 of the second napkin 20 . The second fixing portion 2 has a linear shape extending in the vertical direction X in plan view. In the example shown in FIG. 1, the second fixing portion 2 has a rectangular shape with the longitudinal direction X being the longitudinal direction. The second fixing part 2 has a shape that is continuous in the longitudinal direction X. For example, the second fixing part 2 is formed by an assembly in which a plurality of fixing part elements are closely arranged intermittently along the longitudinal direction X to form a row, The shape as a whole may be regarded as a linear shape extending in the vertical direction.
In the example shown in FIG. 1 , the pair of second fixing portions 2 are provided symmetrically about the vertical center line CL1 and the horizontal center line CL2 of the second napkin 20 . It should be noted that the pair of second fixing portions 2 may not have a shape symmetrical about the vertical center line CL1 or the horizontal center line CL2 of the second napkin 20 .

In the present specification, the phrase "vertically extending" in the second fixing portion 2 means extending in a direction including a vector component parallel to the longitudinal direction X as a whole. In addition, the “linear shape” of the second fixing portion 2 is not limited to a straight shape in a plan view, and includes a curved shape and a straight and curved shape.

The second fixing part 2 may be made up of a hook material that is provided on the non-skin side 20b of the second napkin 20 and is made up of a plurality of locking projections. By hooking the engaging projections of the hook material to the non-woven fabric fibers of the sheet (the first top sheet 12 and the first side sheet 15) located on the skin side 10a of the first napkin 10 and binding them together, the second The non-skin side 20b of the first napkin 20 is fixed to the skin side 10a of the first napkin 10. As shown in FIG. Then, in the second fixing portion 2, the second napkin 20 is peeled off so that the first napkin 10 and the second napkin 20 are separated from each other, and the hook material is caught by the non-woven fabric fibers. By releasing the bond, the second napkin 20 can be easily peeled off from the first napkin 10 .
Also, the second fixing portion 2 may be made of an adhesive such as a hot-melt adhesive provided on the non-skin side of the second napkin 20 . The non-skin side 20b of the second napkin 20 is fixed to the skin side 10a of the first napkin 10 by the adhesive.
Further, the second fixing portion 2 may be fixed by pressing by pressing. Pressing includes embossing with or without heat, ultrasonic sealing, and the like. For example, the second fixing part 2 arranges the second napkin 20 on the first napkin 10, and heats or accompanies heat in the thickness direction Z from the second napkin 20 side toward the first napkin 10. It may be formed by not embossing.
In either configuration, the second fixing portion 2 is a region with higher rigidity than the surrounding region.

In the laminated napkin 1, the second fixing part 2 having a higher rigidity than the surroundings is provided so as to extend in the vertical direction X in the excretory part facing region C2 where liquid is mainly absorbed. , the deformation of the excretory part facing region C2 due to an external force applied from the wearer's legs toward the inner side in the lateral direction Y can be suppressed, and the displacement of the second napkin 20 with respect to the first napkin 10 can be preferably suppressed.

From the viewpoint of ease of handling when discarding the second napkin 20, it is more preferable that the second fixing portion 2 is a hook material of a mechanical fastener. give an example.

Here, typically, after the second napkin 20 is peeled from the first napkin 10, the second napkin 20 is peeled from one end to the other end in the longitudinal direction with the skin side 10a inside. It is rolled into a compact roll and discarded.
When the second fixing part 2 is a hook material, the non-woven fabric fibers constituting the skin side surface 20a of the front region 33 (or the rear region 34) located on the outermost side in the wound body are attached with hooks, which are the second fixing part 2. By hooking and connecting the locking projections of the material, the skin side surface 20a of the front region 33 (or the rear region 34) and the non-skin side surface 20b of the longitudinal central region 32 can be fixed by the second fixing part 2. , the shape of the wound body can be maintained.
When the second fixing portion 2 is an adhesive, in the wound body, the skin side surface 20a of the outermost front region 33 (or the rear region 34) and the non-skin side surface 20b of the longitudinal central region 32 are secondly fixed. It can be fixed by the portion 2, and the shape of the wound body can be maintained.

In the laminated napkin 1, since the second fixing part 2 is provided in the longitudinal central region 32 of the second napkin 20, even if the second napkin 20 is rolled from either the front end or the rear end, The non-skin side surface 20b and the skin side surface 20a of the winding end portion of the wound body are fixed by the second fixing portion 2, so that the shape of the wound body can be easily maintained.
Furthermore, by providing the second fixing portion 2 in the longitudinal central region 32 of the second napkin 20, the second fixing portion 2 is covered with the second napkin 20 at the winding end portion of the wound body. The structure is such that the second fixing portion 2 is less likely to be exposed on the surface of the body. Therefore, in the wound body, when the second fixing portion 2 is made of the hook material, for example, it is possible to suppress rough hands caused by contact with the hook material, and the second fixing portion 2 is made of the adhesive. In this case, the adhesive is prevented from sticking to hands or garbage cans, and the laminated napkin 1 is gentle on the skin and easy to operate. In addition, since the wound body has a structure in which the second fixing portion 2 is difficult to be exposed on the surface, the second napkin 20 can be rolled up to form a wound body, such as an individual packaging sheet or toilet paper. The handling of the laminated napkin 1 is facilitated without the need to rewrap it.

From the viewpoint of ease of handling, it is more preferable to configure the second fixing portion 2 with a hook material. Since the second napkin 20 cannot be neatly rolled up due to sticking of the adhesive, the hook material can be used to form a neat wound body, which facilitates handling.

Moreover, in the example shown in FIG. 1, the second side sheet 25 and the second top sheet 22 overlap with the second fixing portion 2 in plan view. When the second fixing part 2 is made of a hook material, the sheets overlapping the second fixing part 2 in plan view (the second side sheet 25 and the second top sheet 22 in FIG. 1) are made of nonwoven fabric. is preferred. With such a configuration, when the second napkin 20 is rolled into a roll, the hooking projections of the hook material are hooked on the nonwoven fabric fibers of the second side sheet 25 and the second top sheet 22. It becomes easy to join, and the fixed area by the 2nd fixing|fixed part 2 of the non-skin side 20b and the skin side 20a of the 2nd napkin 20 can be ensured widely, and the shape maintenance of a winding body becomes easy.

[others]
Although the above-mentioned embodiment demonstrated the laminated napkin in which the napkin of 2 sheets was laminated|stacked, the above-mentioned 2nd napkin may be comprised so that it may distribute|circulate by itself.
The wearer places a second napkin 20 as an absorbent article on the skin side of another absorbent article such as a pad type or pants type that the wearer already has, and attaches the second napkin 20 with the second fixing part 2 and the first fixing part 3. It can be fixed and used, and the wearer can choose how to use the napkin according to his/her lifestyle.
In this case, the non-skin side 20b of the second napkin 20 is provided with the first fixing portion 3 and the second fixing portion 2 made of adhesive or hook material.
In addition, when positioning the second napkin 20 to another absorbent article and fixing it, the second napkin 20 can be fixed in an appropriate position, and the second Two napkins 20 may be configured. For example, by configuring the second napkin 20 so that the excretion part facing region of the second napkin 20 is positioned between two adjacent folded parts of the second napkin 20, the wearer can use the area between the two folded parts for excretion. It can be conscious to attach it to another absorbent article so as to face the part.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

For example, in the above embodiments, sanitary napkins are used as absorbent articles, but the present invention is not limited to this. The absorbent article of the present invention may be, for example, a urine absorbing pad, a vaginal discharge sheet, a disposable diaper, or the like.

In the above-described embodiment, the second napkin 20 has a shape in which the front end portion 20f and the rear end portion 20r each have two protrusions. good.

In the above-described embodiment, in the second napkin, the recesses, protrusions, and independent compressed grooves have a shape reminiscent of a bear, but the shape is reminiscent of other animals such as cats and dogs. good too.
In addition, generally, a plurality of laminated napkins or a plurality of second napkins are housed in one package and distributed, but the second napkin having a shape reminiscent of a different kind of animal is included in this one package. and may be motivating replacement of the laminated napkin itself or replacement of a second napkin. In addition, a plurality of patterns may be prepared on the second backsheet of the second napkin housed in one package, and the second napkin of the laminated napkin is peeled off to the first napkin. It can be a motivation to replace.

1 ... Laminated napkin (laminated absorbent article)
10... First napkin (first absorbent article)
14... First absorbent body 20... Second napkin (second absorbent article)
24... Second absorber 40... Front recess (recess)
41 ... Front first projecting portion (first projecting portion)
41b... Non-fixed area 42... Front second projecting portion (second projecting portion)
42b... non-fixing area 50... rear recess (recess)
51... Rear first projecting portion (first projecting portion)
51b... Non-fixing area 52... Rear second projecting portion (second projecting portion)
52b... Non-fixed area X... Vertical direction Y... Horizontal direction

Claims (13)

A first absorbent article having a longitudinal direction corresponding to the front-rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and having a first absorbent body; and a skin side of the first absorbent article. A laminated absorbent article formed by laminating a second absorbent article located in
The second absorbent article is fixed to the first absorbent article so as to be peelable from the first absorbent article,
In a plan view, the second absorbent article has recesses that are recessed inward in the longitudinal direction on at least one of the front end and the rear end in the longitudinal direction, and is positioned on both lateral sides of the recess on both sides of the recess. and having a first projecting portion and a second projecting portion that are convex toward the outer side in the longitudinal direction,
At least one of the first projecting portion and the second projecting portion has a non-fixed area on the peripheral edge thereof in plan view, where the first absorbent article and the second absorbent article are not fixed. A layered absorbent article. The first absorbent article is divided longitudinally from the front to the rear into a front region, an excretory part-facing region, and a rear region,
The second absorbent article is provided extending from the front region of the first absorbent article to the rear region through the excretory part-facing region in a plan view. The layered absorbent article according to claim 1, wherein the longitudinal length is shorter than the article. The second absorbent article comprises a second topsheet, a second backsheet, and the second absorbent body disposed between the second topsheet and the second backsheet. has
The second absorbent article is arranged such that the skin side of the first absorbent article and the second backsheet are positioned to face each other,
The layered absorbent article according to claim 1 or 2, wherein the color of the second backsheet is visible when the second absorbent article is viewed from the side of the second topsheet. The layered absorbent article according to any one of claims 1 to 3, wherein the recess is arranged in the lateral central region of the second napkin. 5. Any one of claims 1 to 4, wherein the second absorbent article has the recess, the first projection and the second projection at each of the longitudinal front end and the rear end of the second absorbent article in plan view. 3. The layered absorbent article according to . The layered absorbent article according to any one of Claims 1 to 5, wherein the recess, the first projection and the second projection have shapes reminiscent of animals. 7. Any one of claims 1 to 6, wherein the skin side of the second absorbent article has independent compressed grooves in the vicinity of the longitudinal regions of the recesses and in the transverse central region in plan view. 10. The layered absorbent article according to the above item. The layered absorbent article according to claim 7, wherein the independent compressed grooves have a shape and arrangement reminiscent of an animal's face. 9. The layered absorbent article according to any one of claims 6 to 8, wherein the second absorbent article has, on its non-skin side, a pattern reminiscent of the back of an animal. The first absorbent article is
a first topsheet, a first backsheet, and the first absorbent body interposed between the first topsheet and the first backsheet; a main body divided into a section-facing region and a rear region;
a pair of wing portions protruding laterally outward from the region facing the excretion portion of the main body;
10. The second absorbent article according to claim 1, wherein the second absorbent article does not have a region that overlaps with the wing portion in plan view, or has a side flap that is smaller in area than the wing portion in a region that overlaps with the wing portion. The layered absorbent article according to any one of claims 1 to 3. 11. Any one of claims 1 to 10, wherein the first absorbent body is positioned in a region where the second absorbent article does not exist between the first projecting portion and the second projecting portion in plan view. 10. The layered absorbent article according to the above item. 12. Any one of claims 1 to 11, wherein fixing portions for fixing the first absorbent article and the second absorbent article are positioned on the first projecting portion and the second projecting portion in plan view. 10. The layered absorbent article according to the above item. It has a non-skin side, and can be stacked by arranging the non-skin side to face the skin side of another absorbent article and releasably fixing it to the other absorbent article, and corresponds to the front-back direction of the wearer. An absorbent article having a longitudinal direction and a lateral direction orthogonal to the longitudinal direction,
In a plan view, at least one of the front end portion and the rear end portion in the longitudinal direction has a concave portion that is concave inward in the longitudinal direction, and a concave portion that is located on both lateral sides of the concave portion and that is convex in the longitudinal direction outward. It has a first projecting portion and a second projecting portion that are
At least one of the first projecting portion and the second projecting portion has a non-fixing area in its peripheral edge portion where the fixing portion for fixing to the other absorbent article is not positioned.

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