JP2023091116A - absorbent article - Google Patents

Abstract

To provide a laminate type absorbent article and an absorbent article which are easy to handle.SOLUTION: A laminate type absorbent article is configured by laminating a second absorbent article on a first absorbent article. The first absorbent article has a first absorber, and the second absorbent article has a second absorber. The second absorbent article has a shorter length in a longitudinal direction than the first absorbent article. The second absorbent article is disposed extending from a front area of the first absorbent article to a rear area through an excretion part-facing area in plan view. The laminate type absorbent article has a first fixing part for peelably fixing the first absorbent article and the second absorbent article, and a second fixing part having a smaller area than the first fixing part. The first fixing part extends in a longitudinal direction in plan view, and is positioned in each of lateral direction both side areas of an excretion part-facing area of the second absorbent article. The second fixing part is positioned in each of lateral direction both side areas at least in one of the front area and the rear area of the second absorbent article in plan view.SELECTED DRAWING: Figure 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 second absorbent article has a longitudinal length shorter than that of the first absorbent article.
The laminated absorbent article is formed by laminating a first absorbent article and a second absorbent article located on the skin side of the first absorbent article.
The first absorbent article has a first absorbent body and the second absorbent article has a second absorbent body.
The first absorbent article and the second absorbent article are divided longitudinally into a front area, an excretory part-facing area, and a rear area.
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 plan view.
The layered absorbent article includes a first fixing portion that detachably fixes the first absorbent article and the second absorbent article, and a second fixing portion having a smaller area than the first fixing portion. and
The first fixing portions extend in the vertical direction in a plan view, and are positioned on both lateral side regions of the excretory portion facing region of the second absorbent article.
In plan view, the second fixing portions are located in both lateral side regions of at least one of the front region and the rear region of the second absorbent article.

An absorbent article according to one aspect of the present invention has a non-skin side, and can be laminated by placing the non-skin side facing the skin side of another absorbent article and fixing it to the other absorbent article. be.
The absorbent article has a longitudinal direction corresponding to the front-rear direction of the wearer and a lateral direction orthogonal to the longitudinal direction, and is divided into a front region, an excretory part-facing region, and a rear region along the longitudinal direction. .
The absorbent article includes, on the non-skin side surface, a first fixing portion for fixing the absorbent article and the other absorbent article so that the absorbent article can be peeled off from the other absorbent article; It has a second fixing portion having an area smaller than that of the first fixing portion.
The first fixing portions extend in the vertical direction in a plan view, and are positioned on both lateral side regions of the excretion portion-facing region.
In plan view, the second fixing portions are located on both lateral side regions of at least one of the front region and the rear region.

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 perspective view showing a process of discarding after peeling a second absorbent article forming part of the layered absorbent article. Fig. 2 is a plan view of the layered absorbent article, omitting illustration of side sheets.

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 perpendicular 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 center line 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, "plan view" means a plan view seen from the thickness direction Z.

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 2 and a second fixing part 3, which will be described later.

By using the laminated napkin 1, the wearer first uses the second napkin 20 positioned above to absorb excrement fluid such as blood (hereinafter also referred to as "liquid"). 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. can be done.
In this way, the first napkin 10 that has not absorbed liquid can be replaced 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, in the laminated napkin 1 of the present invention, the first fixing part 2 and the second fixing part 3 for fixing the first napkin 10 and the second napkin 20 are configured as described below, so that handling has become easier.
A detailed description will be given below with reference to the drawings.

[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 the wearer's excretions.

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.

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 .

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-absorbent 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 . In addition, in FIG. 1, the compressed groove 16 is hidden by the second napkin 20 and is not visible in plan view. 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.
The compressed grooves 16 have higher rigidity than other regions and are difficult to deform. Therefore, when the first napkin 10 receives an external force, the compressed groove 16 can function as a deformation starting point that promotes deformation of the surrounding low-rigidity region, or as a portion that exerts a resistance against the external force. In addition, since the compressed grooves 16 have a higher fiber density than the surrounding area, they can absorb and retain the excreted liquid by capillary action.
The compressed grooves 26 provided in the second napkin 20 to be described below are the same as the compressed grooves 16 .

[Overall configuration of the second napkin]
As shown in FIGS. 1 and 2, the second napkin 20 constituting the upper layer of the laminated napkin 1 of this embodiment does not have a pair of wings.

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 surface 10 b of the second napkin 20 is fixed to the skin side surface 10 a of the first napkin 10 by the first fixing portion 2 and the second fixing portion 3 .
The second napkin 20 has a second absorbent body 24, which will be described later, and has a function of absorbing the wearer's excrement.

As shown in FIG. 1, the second napkin 20 has a lateral central region 30 and lateral lateral regions 31 positioned on each side of the lateral central region 30 therebetween. The lateral central region 30 corresponds to the central portion of the minimum width portion of the second napkin 20 facing the excretory portion C2, which has the smallest length in the lateral direction Y, and is trisected 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. In the second napkin 20, the length in the horizontal direction Y of the excretory portion facing region C2 is shorter than the maximum width portions of the front region F2 and the rear region R2, and the overall shape is narrow in the longitudinal center. there is In the second napkin 20, the maximum width portions having the maximum length in the horizontal direction Y are located in the front region F2 and the rear region R2. In the second napkin 20, the excretion portion facing region C2 has a shape in which the length in the horizontal direction Y is shorter than the maximum width portion over the entire length in the vertical direction X. As shown in FIG. A portion of the second napkin 20 where the length in the horizontal direction Y of the excretory portion facing region C2 is the smallest is defined as the minimum width portion of the second napkin 20 .

As shown in FIG. 1, the second napkin 20 has a longitudinal central region 32, and front and rear regions 33 and 34 located on the front and rear sides of the longitudinal central region 32 respectively. The longitudinal center region 32 is the center of the vertical direction X total length of the second napkin 20 (length in the vertical direction X of the portion where the length in the vertical direction X is the maximum) divided into three equal parts in the vertical direction X. corresponding to the part.

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 compressed grooves 26 and joining by adhesive or heat sealing.

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.
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 .
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.
In the laminated napkin 1, the second napkin 20 is placed on top of the first napkin 10, which is another napkin, and used. Therefore, even if liquid permeates downward in the Z direction through the second napkin 20, the liquid can be absorbed by the first napkin 10, so the second backsheet 23 may be liquid permeable. A layered napkin 1 with good air permeability that is hard to 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 compression grooves 26 on the side of the second topsheet 22 . In the second napkin 20, the compressed groove 26 extends from a part of the front region F2 through the excretory part facing region C2 to a part of the rear region R2 in a substantially oval annular shape having a longitudinal direction in the longitudinal direction X. It is formed.

[Relationship between the size of the first napkin and the second napkin]
From the viewpoint of facilitating the peeling operation of the second napkin 20, as shown in FIG.
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 part that becomes the starting point of peeling when peeling the second napkin 20 can be easily determined. In addition, it becomes easier to pick up with fingers, the peeling operation becomes easier, and the handling of the laminated napkin 1 becomes easier. In addition, in plan view, the presence of both the first napkin 10 and the second napkin 20 in the laminated napkin 1 can be visually grasped, and two napkins are laminated for the wearer. It is possible to give a sense of security against leakage due to

[Structure of first fixing part and second fixing part]
In FIG. 1, the outlines of the first fixing portion 2 and the second fixing portion 3 are indicated by dashed lines, and the inside thereof is indicated by oblique lines.
In the laminated napkin 1, the first napkin 10 and the second napkin 20 are fixed by the first fixing part 2 and the second fixing part 3 so as to be peelable. In the laminated napkin 1, the first napkin 10 and the second napkin 20 are not fixed along the entire area of the second napkin 20 or its entire peripheral edge in plan view.
In the example shown in FIG. 1, the second napkin 20 is fixed to the first napkin 10 only at the lateral lateral areas 31, the first fixing part 2 and the second fixing part 3 both being planar Visually, it is not located in the lateral central region 30 of the second napkin.

(First fixed part)
The first fixing part 2 is located in each lateral side area 31 of the excretory part facing area C<b>2 of the second napkin 20 . The first fixing portion 2 has a linear shape extending in the vertical direction X in plan view. In the example shown in FIG. 1, the first fixing portion 2 has a rectangular shape with the longitudinal direction X being the longitudinal direction. The first fixing part 2 has a shape that is continuous in the longitudinal direction X. For example, a plurality of fixing part elements are arranged intermittently in the longitudinal direction X in close proximity in the longitudinal direction X to form a row. It may also be formed by an aggregate formed by forming a linear shape extending in the vertical direction as a whole.
In the example shown in FIG. 1 , the pair of first 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 first fixing portions 2 may not have a shape symmetrical with respect to the vertical center line CL1 or the horizontal center line CL2 of the second napkin 20 .

In the present specification, the first fixing portion 2 "extends in the vertical direction" means extending in a direction including a vector component parallel to the vertical direction X as a whole. In addition, the “linear shape” of the first 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 first fixing part 2 extends in the vertical direction X in the vertical direction X within the excretion part facing regions C1 and C2 in a plan view, and extends to the front regions F1 and F2 and the rear regions R1 and R2. not. In addition, the first fixing portion 2 is not located in the lateral central region 30 of the second napkin 20 in the lateral direction Y in a plan view, but is positioned in the lateral lateral region 31, and is laminated. In the type napkin 1, it is located inside the side edges of the napkin. More specifically, in the laminated napkin 1, the first fixing portion 2 is arranged so as to overlap the second absorbent body 24 of the second napkin 20 in plan view. Also, the first fixing part 2 is located only in the longitudinal central region 32 of the second napkin 20 and is not located in the front region 33 and the rear region 34 .

The first fixing portion 2 may be composed of a hook member of a mechanical fastener composed of a plurality of engaging projections provided on the non-skin side 20b of the second napkin 20. As shown in FIG.
A sheet ( The non-skin side 20b of the second napkin 20 is fixed to the skin side 10a of the first napkin 10 by hooking and binding the nonwoven fabric fibers of the first top sheet 12 and the first side sheet 15).
Then, in the first fixing part 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 first fixing portion 2 may be composed 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 first fixing portion 2 may be fixed by pressing by pressing. By pressing and fixing, the non-skin side 20b of the second napkin 20 is fixed to the skin side 10a of the first napkin 10. As shown in FIG. Pressing includes embossing with or without heat, ultrasonic sealing, and the like. For example, the first 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 pressing without pressing.

In either configuration, the first fixing portion 2 is a region with higher rigidity than the surrounding region.
From the viewpoint of discarding the second napkin 20 after being rolled up, the first fixing part 2 is preferably a re-adherable means, and is preferably composed of, for example, a hook material or an adhesive.
Here, "re-adherable" means that the first napkin 10 and the second napkin 20 are separated from the state in which the first napkin 10 and the second napkin 20 are adhesively fixed, and both are fixed. is released, the second backsheet 23 and other components (for example, the skin side of the second napkin 20 It means that the second surface sheet 22 and the second side sheet 25) constituting the 20a can be adhesively fixed.
Furthermore, from the viewpoint of ease of handling when discarding the second napkin 20, it is more preferable that the first fixing part 2 is a hook material, and in the present embodiment, the first fixing part 2 is made of a hook material. I'll give you an example. Details will be described later.

(Second fixed part)
The second fixing part 3 is located in each lateral direction side region 31 of each of the front region F2 and the rear region R2 of the second napkin 20 . Specifically, the second fixing portion 3 is provided in a region of 5% or more and 30% or less of the length of the longitudinal direction X total length of the second napkin 20 from the front end portion of the second napkin 20. Preferably, it is provided in a region of 5% or more and 40% or less of the total length of the second napkin 20 in the longitudinal direction X from the rear end of the second napkin 20 .
In the example shown in FIG. 1, an example in which the planar shape of the second fixing portion 3 is a perfect circle is given, but the shape is not limited to this, and may be other shapes such as an elliptical shape and a polygonal shape.

The second fixing part 3 may be composed of a mechanical fastener hook material composed of a plurality of locking projections provided on the non-skin side 20 b of the second napkin 20 .
A sheet (the first top sheet 12 or the first side sheet 15) positioned on the skin side 10a of the first napkin 10 (the first top sheet 12 or the first side sheet 15) is attached to the hook material engaging projections provided on the non-skin side 20b 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 hooking and bonding to the nonwoven fabric fibers of ).
Then, in the second 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 second 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 second 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 second 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 is formed by not embossing.

In either configuration, the second 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 more preferable that the second fixing portion 3 is composed of compression fixing or hook material. In particular, when the second fixing portion 3 is press-fixed, it is possible to realize fixability at the time of attachment and peelability after attachment with a small area, which is preferable from the viewpoint of good texture and cost advantage.
In this embodiment, an example is given in which the second fixing portion 3 is configured by pressing and fixing by embossing accompanied by heat. Details will be described later.

In addition, the 2nd fixing|fixed part 3 should just be provided in each of the horizontal direction both side areas 31 of at least one of the front area|region F2 and the rear area|region R2. However, it is preferable that the second fixing portion 3 is provided in both the front region F2 and the rear region R2.
By positioning the second fixing portion 3 in at least one of the front region F2 and the rear region R2, the second napkin 20 is fixed to the first napkin 10 together with the first fixing portion 2 that is shifted in the vertical direction X. , and the displacement of the second napkin 20 in the lateral direction Y can be suppressed.
From the viewpoint of further suppressing the displacement of the second napkin 20 in the lateral direction Y and suppressing curling and folding near the front and rear ends of the second napkin 20, the front region F2 and the rear region R2 are arranged as in the present embodiment. It is more preferable that the pair of second fixing portions 3 be positioned on both sides of the .
In the example shown in FIG. 1, the second fixing parts 3 are positioned at the four corners of the second napkin 20, respectively, and a total of four are provided. In this example, the four second fixing portions 3 are provided symmetrically about the longitudinal center line CL1.

The pair of second fixing portions 3 provided in the front region F2 are not located in the lateral central region 30 of the front end region 35 of the second napkin 20 . The front end region 35 is a region within 5% of the total length of the second napkin 20 in the longitudinal direction X from the front end of the second napkin 20 to the inner side in the longitudinal direction X.
The pair of second fixing portions 3 provided in the rear region R<b>2 are not located in the lateral central region 30 of the rear end region 36 of the second napkin 20 . The rear end region 36 is a region within 5% of the total length of the second napkin 20 in the longitudinal direction X, from the rear end portion of the second napkin 20 to the inner side in the longitudinal direction X.
As shown in FIG. 1, the second napkin 20 is formed such that the width (the length in the lateral direction Y) narrows forward and rearward in the front end region 35 and the rear end region 36, respectively. And the shape of the rear end portion has a substantially arc shape in a plan view.
The second fixing portion 3 is provided in the vicinity of the side edge of the changing portion where the width of the second napkin 20 changes so as to narrow forward in the front region F2.

(Actions and Effects of First Fixing Part and Second Fixing Part)
As described above, in the laminated napkin 1, the first fixing portion 2 for fixing the first napkin 10 and the second napkin 20 is arranged in the vertical direction X in each of the horizontal side regions 31 of the excretory part facing region C2. Extending and positioned, the second fixing portion 3 is positioned in each of the lateral direction side regions 31 of at least one of the front region F2 and the rear region R2.

That is, in the laminated napkin 1, the first napkin 10 and the second napkin 20 are, in plan view, by the first fixing portion 2 and the second fixing portion 3 locally positioned with respect to the second napkin 20. The second napkin 20 may be fixed or loose along its entire perimeter.
With such a configuration, the second napkin 20 can be easily peeled off from the first napkin 10, and the laminated napkin 1 can be easily handled, and the rigidity of the second napkin 20 as a whole. can be made the laminated napkin 1 excellent in wearing feeling with little feeling of foreign matter by lowering the .

In addition, in the laminated napkin 1, the first fixing portion 2 having a higher rigidity than the surroundings is provided to extend in the vertical direction X in the excretion portion facing region C2 where liquid is mainly absorbed, When worn, the deformation of the excretory part facing region C2 due to the external force applied from both legs of the wearer toward the inside in the lateral direction Y is suppressed, and good liquid absorption performance is maintained, and the first napkin of the second napkin 20 10 is effectively suppressed.
Furthermore, in the laminated napkin 1, the second fixing part 3 is provided in each of the front region F2 and the rear region R2 of the second napkin 20, which is likely to be subjected to twisting force due to the wearer's movement when worn. As a result, the second napkin 20 is less likely to be displaced from the first napkin 10 and less likely to be peeled off. In addition, the pair of second fixing portions 3 positioned in the front region F2 and the rear region R2 are separated from each other in the lateral direction Y in plan view, and the first napkin 10 is provided between the pair of second fixing portions 3. and the second napkin 20 are not fixed, the torsional force acting on the front region F2 and the rear region R2 of the second napkin 20 is buffered by the presence of the non-fixed region. , the force applied to the second fixing portion 3 is easily reduced, and the peeling of the second napkin 20 from the first napkin 10 during wearing is more effectively suppressed.
In this way, the laminated napkin 1 is easy to handle, and even when worn, the second napkin 20 is less likely to come off unexpectedly, and is excellent in liquid absorbency and wearability.

Here, in a general single-layer napkin that is not a laminated type, when replacing the napkin, the packaging sheet of the new replacement napkin may be used as a sheet to wrap the used napkin.
On the other hand, with laminated napkins, when the upper layer napkin is peeled off and the lower layer napkin is used, it is not necessary to open a new napkin, so it is difficult to obtain a sheet for wrapping the used napkin.
On the other hand, in the laminated napkin 1 of the present embodiment, the shape of the used second napkin 20 wound body can be maintained by the first fixing part 2, and the wound body is first fixed. Since the portion 2 has a structure in which it is difficult to be exposed on the surface, a sheet for wrapping the used napkin is not necessarily required, making it easy to handle.

From the viewpoint of discarding the second napkin 20 by rolling it, it is preferable that the first fixing portion 2 is composed of a hook material or an adhesive, which is a reattachable means.
A typical process of discarding the second napkin 20 will be described with reference to FIG. FIG. 3 shows an example in which the second napkin 20 is rolled up from the rear end toward the front end to form a compact roll and discarded.
At the time of discarding the second napkin 20 shown in FIG. 3A, first, as shown in FIG. is rounded to
Further, when the second napkin 20 is rolled up, as shown in FIG. ) is positioned at the first fixing portion 2 .
Further, when the second napkin 20 is rolled up, the front area 33 is positioned so as to cover the first fixing portion 2 on the surface of the wound body, and the wound body is formed as shown in FIG. 3(D). be done.

When the first fixing portion 2 is a hook material, the nonwoven fabric fibers constituting the skin side surface 20a of the front region 33 located on the outermost side of the wound body are provided with hooking projections of the hook material, which is the first fixing portion 2. By hooking and joining the skin side 20a of the front region 33 and the non-skin side 20b of the longitudinal central region 32 can be fixed by the first fixing part 2, and the shape of the wound body can be maintained. can.
When the first fixing portion 2 is an adhesive, the first fixing portion 2 fixes the skin side surface 20a of the outermost front region 33 and the non-skin side surface 20b of the longitudinal central region 32 in the wound body. and the shape of the wound body can be maintained.

Although FIG. 3 shows an example in which the second napkin 20 is rolled from the rear end to the front end, it may be rolled from the front end to the rear end to form a wound body.
In the laminated napkin 1, since the first fixing portion 2 is provided in the longitudinal central region 32 of the second napkin 20, the winding of the wound body can be performed regardless of whether the front end or the rear end is rolled. At the end portion, the non-skin side 20b and the skin side 20a are fixed by the first fixing portion 2, so that the shape of the wound body can be easily maintained. In particular, as shown in FIG. 1, when the first fixing portion 2 is provided in the longitudinal central region 32 of the second napkin 20 so as to be symmetrical with respect to the horizontal center line CL2, the discarding operation is easier.

In addition, since both sides of the wound body are fixed by providing the first fixing portion 2 in the lateral side region 31 of the second napkin 20, the surface sheet after use is less likely to be exposed, resulting in discomfort. It has a configuration that makes it difficult to generate

Furthermore, by providing the first fixing portion 2 in the longitudinal central region 32 of the second napkin 20, the first 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 first fixing portion 2 is less likely to be exposed on the surface of the rotating body.
Therefore, in the wound body, since the first fixing portion 2 is less likely to be exposed on the surface, for example, when the first fixing portion 2 is made of a hook material, rough hands due to contact with the hook material are suppressed. be. When the first fixing part 2 is made of an adhesive, the adhesive is prevented from sticking to hands or garbage cans. There is no need to re-wrap the laminated napkin 1, and the handling of the laminated napkin 1 is facilitated. Thus, the laminated napkin 1 is gentle on the skin and easy to operate.

From the viewpoint of ease of handling when discarding the second napkin 20, it is more preferable that the first fixing portion 2 is a hook material.
When the first fixing portion 2 is composed of an adhesive, the adhesion strength of the adhesive itself weakens due to the fact that it is adhesively fixed to the first surface sheet 12, and the second surface sheet 22 becomes wet after use. When the second napkin 20 is rolled up, it is difficult to adhere, and the adhesive sticks to each other and the second napkin 20 cannot be neatly rolled up. On the other hand, by configuring the first fixing part 2 with the hook material, the above-mentioned problems do not occur, and when the second napkin 20 is discarded, a clean wound body can be formed, and it is easy to handle. becomes even easier.

When the first fixing portion 2 is made of a hook material or adhesive, fluffing may occur on the skin side surface 10a of the first napkin 10 at the portion fixed by the hook material or adhesive. From the viewpoint of effectively suppressing liquid absorption inhibition due to fluffing, the first fixing portion 2 is provided so as to be further away in the lateral direction Y from the lateral central region 30 where liquid is more likely to be absorbed in the excretion portion facing region C2. is preferable, and it is preferable that the first fixing portion 2 is positioned near both side edges in the horizontal direction Y of the excretory portion facing region C2.
In the example shown in FIG. 1, the first fixing portion 2 overlaps the inner side edge 15a of the first side sheet 15 in plan view in order to reduce the area of the first fixing portion 2 that overlaps with the first surface sheet 12, which tends to absorb liquid. It is provided so as to overlap both the first side sheet 15 and the first top sheet 12 .
Further, when the first fixing part 2 is made of hook material, the sheet overlapping the first fixing part 2 in plan view (the second side sheet 25 and the second top sheet 22 in FIG. 1) is made of nonwoven fabric. preferably. 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 1st 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.

From the viewpoint of ease of handling when the second napkin 20 is discarded, it is more preferable that the second fixing portion 3 is composed of compression fixing or hook material. Furthermore, from the viewpoint of being gentle on the skin, it is more preferable that the second fixing portion 3 is pressed and fixed.
Here, when the used second napkin 20 is rolled into a wound body, the second fixing portion 3 is exposed on the surface of the wound body. Therefore, when the second napkin 20 is discarded, the second fixing portion 3 made of the adhesive exposed on the surface of the wound body can be used to hold the fingers by pressing the second fixing portion 3 or by forming the second fixing portion 3 with a hook material. The used second napkin 20 can be easily discarded without sticking the wound body to the trash can. Furthermore, by configuring the second fixing portion 3 by compressing and fixing, when the second napkin 20 is discarded, the second fixing portion 3 made of the hook material exposed on the surface of the wound body is contacted. The skin does not become rough and can be made gentle to the skin.

Although the fixing portion may be located locally in the lateral central region 30 of the second napkin 20, from the viewpoint of facilitating the peeling operation of the second napkin 20, as shown in FIG. The napkin 20 is preferably free from the first napkin 10 over the entire lateral central region 30 of the front and rear end regions 35 , 36 .
With such a configuration, it is easy to insert a finger between the first napkin 10 and the second napkin 20 in the front end region 35 and the rear end region 36, and the second napkin 20 can be easily pinched and peeled off. The layered napkin 1 can be easily handled. In addition, the area occupied by the fixing portion can be reduced in plan view, and the laminated napkin can be flexible and excellent in wearability.

Also, the second backsheet 23 may be colored.
When the second napkin 20 is discarded, the second backsheet 23 of the roll of the second napkin 20 is positioned on the outside. Therefore, by coloring the second backsheet 23, menstrual blood can be made difficult to see from the second backsheet 23 side. This reduces discomfort when discarding the second napkin 20 .
Further, by coloring the second back sheet 23 and making the second side sheet 25 a light-transmitting sheet, when the second napkin 20 is viewed from the skin side 20a in plan, the second absorbent body 24 The color of the second backsheet 23 becomes visible in the absorber nonexistent region where there is no . Typically, a napkin surrounds an absorbent body and has an absorbent body-absent region located therearound in a plan view. Therefore, by visually recognizing the color of the second backsheet 23, the contour of the second napkin 20 can be grasped, and the peeling work becomes easy.

(Relationship between the size of the first fixing part and the second fixing part)
As shown in FIG. 1, in the laminated napkin 1, the area of the second fixing portion 3 is preferably smaller than that of the first fixing portion 2 from the viewpoints of wearability, liquid absorption, and disposal.
That is, the first napkin 10 and the second napkin 20 are securely fixed in the excretory part facing regions C1 and C2 where the liquid is mainly absorbed and the external force from both legs of the wearer is applied to the second napkin. 20 and from the viewpoint of maintaining the shape of the wound body when discarding the second napkin 20, the first fixing portion 2 has a shape extending in the longitudinal direction X in the excretory portion facing regions C1 and C2. have. On the other hand, a pair of the second fixing portions 3 may be provided along the lateral direction Y for each of the front region F2 and the rear region R2 from the viewpoint of suppressing positional deviation in the lateral direction Y of the regions. The area can be designed to be smaller than that of the portion 2 . In the laminated napkin 1, since the fixed part has higher rigidity than the unfixed area, by making the area of the second fixed part 3 smaller than the area of the first fixed part 2, the rigidity of the entire napkin can be reduced, and the absorption It gives a soft and excellent wearing feeling without deteriorating the liquidity and disposability.

(Positional relationship between the first fixing part and the second fixing part)
The first fixing part 2 and the second fixing part 3 may be provided so as to overlap each other in the vertical direction X, but as shown in FIG. preferably.
Here, typically, the laminated napkin 1 is individually packaged after being vertically folded in two, three, or four with folding portions (for example, L1 and L2 described later) as folding axes. Since the laminated napkin 1 is formed by laminating two napkins, it is thick as a whole and easily wrinkled when folded.
On the other hand, since the first fixing part 2 and the second fixing part 3 are separated in the vertical direction X, the non-fixing area between the first fixing part 2 and the second fixing part 3 in the vertical direction X The above wrinkles can be buffered, and folding wrinkles can be made difficult to occur.
Further, since the first fixing part 2 and the second fixing part 3 are separated in the vertical direction X, when a twisting force is applied to the laminated napkin 1, the first fixing part 2 and the second fixing part 2 are separated from each other. The non-fixed area between the fixed part 3 buffers the force, and the force applied to the first fixed part 2 and the second fixed part 3 is reduced. As a result, peeling of the second napkin 20 from the first napkin 10 during wearing is more effectively suppressed.

As shown in FIG. 1, the first fixing part 2 is preferably separated from the second fixing part 3 in the lateral direction Y. As shown in FIG.
With such a configuration, in the laminated napkin 1, it is possible to secure a wide range of fixing by the fixing part in the lateral direction Y between the first napkin 10 and the second napkin 20, and the second napkin when worn. The second napkin 20 is less likely to be displaced from the first napkin 10 in the lateral direction Y, and liquid leakage or the like is less likely to occur.

(Positional relationship between the first fixing part and the second absorbent body)
As shown in FIG. 1, in the laminated napkin 1, the second backsheet 23 of the second napkin 20 extends outward in the lateral direction Y from the lateral side edges 24a of the second absorbent body 24 in plan view. , the first fixing part 2 is preferably positioned so as to overlap the second absorbent body 24 .
Both sides (side portions) of the excretory portion facing region C2 where the first fixing portion 2 is located are likely to come into contact with both legs of the wearer, and discomfort such as rubbing is likely to occur. It is possible to reduce the uncomfortable feeling of wearing on both side portions (side portions) of the excretory portion facing region when the laminated napkin 1 is worn. The second napkin 20 has side flaps SF2 formed by laminating a second side sheet 25 extending from the second absorbent body 24 in plan view and a second back sheet 23 on both side edges thereof. The side flaps SF2 are parts that are easily touched by the wearer's legs. In the excretory part facing region C2, the second absorbent core 24 and the first fixing part 2 overlap in plan view, and the second absorbent core 24 and the first fixing part 2 having high rigidity are not positioned on the side flaps SF2. Thus, the side flap SF2 can be made flexible. As a result, the wearer's feeling of discomfort is reduced in the side portions where the wearer's legs are in contact with the wearer's legs, and the wearing comfort is improved.

(Positional relationship between the second fixing part and the second absorbent body)
As shown in FIG. 1, in the laminated napkin 1, it is preferable that the second fixing part 3 does not overlap the second absorbent body 24 in plan view from the viewpoint of liquid absorption. In plan view, the second fixing portion 3 is located on the side flap SF2.
When the liquid adheres to the second fixing part 3, the liquid may move to the first napkin 10 side and stain the first napkin 10. It is preferable that it does not overlap with the second absorbent body 24 . This phenomenon is remarkable when the second fixing portion 3 is configured by compression fixing by embossing. In addition, unlike the excretory part facing region C2, the front region F2 and the rear region R2 where the second fixing part 3 is located are less likely to come into contact with the wearer's legs. Since the area of the second fixing part 3 is smaller than that of the first fixing part 2, even if the second fixing part 3 is provided on the side flap SF2, the wearing feeling is not extremely impaired. Therefore, by positioning the second fixing portion 3 on the side flap SF2, it is possible to improve the liquid absorbency without deteriorating the wearing feeling.

(Positional relationship between fixed part and folding part)
Typically, a plurality of laminated napkins 1 are contained in one pack and distributed in the state of individual packaging folded together with a packaging sheet.
In the package, the laminated napkin 1 is folded in the vertical direction X with two linear folding portions L1 and L2 extending in the horizontal direction Y shown in FIG. 1 as base points. The layered napkin 1 has a first folded portion L1 and a second folded portion L2 in order from the front to the rear of the layered napkin 1 . These folding parts serve as folding axes for folding.
In the example shown in FIG. 1, the first folded portion L1 is located in the front region F1 (F2). The second folded portion L2 is positioned at the boundary between the excretory portion facing region C1 (C2) and the rear region R1 (R2).

A process in which the laminated napkin 1 is folded together with the packaging sheet will be described.
Laminated napkin 1 is disposed substantially in the center of a rectangular packaging sheet (not shown) via an adhesive portion (non-slip material) arranged on the non-skin side of first napkin 10 so that it can be peeled off. . Thus, a laminate of the laminated napkin 1 and the packaging sheet is obtained.
Next, the laminate of the laminated napkin 1 and the packaging sheet is placed with the skin side facing inward, with the first folded portion L1 as the folding axis, and the area in front of the first folded portion L1 is the first folded portion L1. Fold over the area between the second fold L2.
Next, the rear region R1 (R2) is folded over the folded region with the second folding portion L2 as the folding axis. Then, the folded shape is maintained by a tab tape (not shown) to produce a package.

As shown in FIG. 1, it is preferable that the second fixing portion 3 is located outside the folded portions L1 and L2 in the longitudinal direction X. As shown in FIG.
When the package is opened and the layered napkin 1 is taken out and unfolded, the layered napkin 1 is folded between the first folded portion L1 and the second folded portion due to creases formed along the folded portions L1 and L2. The portion behind L2 is easily bent toward the side of the skin side 20a.
On the other hand, in the present embodiment, by adopting the above configuration, the portion of the second napkin 20 in front of the first folded portion L1 and the portion behind the second folded portion L2 of the second napkin 20 are secured by the second fixing portion 3. Since it is fixed to the skin side 10a of the first napkin 10, it is less likely to fold inward toward the skin side 20a, and the second napkin 20 can be suppressed from curling.

As shown in FIG. 1, it is preferable that the first fixing portion 2 does not overlap the folded portions L1 and L2 in plan view.
With such a configuration, creases are reduced, and when the second napkin 20 is discarded, the hands are less likely to touch the first fixing portion 2, and rough hands are effectively suppressed. be done.

[Supplementary explanation of this embodiment]
(Dimension example)
Examples of dimensions of each configuration will be described below with reference to FIG. 4, but the dimensions are not limited to these numerical values. 4, illustration of the first side seat 15 and the second side seat 25 is omitted in order to make the drawing easier to see.

In the example of the laminated napkin 1 shown in FIG. 4, the length of the maximum width portion where the length of the lateral direction Y of the second napkin 20 is maximum is e, and the length of the lateral direction Y in the excretory part facing region C2 is Let e' be the length of the minimum width portion at which is the minimum. The distance between the base end portions Wb of the wing portions W1 of the first napkin 10 is defined as the length b in the horizontal direction Y in the excretory portion facing region C1 of the first napkin 10 .
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, or may be smaller or larger. .
In the excretory part facing regions C1 and C2, when the length in the lateral direction Y of the minimum width portion of the second napkin 20 is shorter than the length b in the lateral direction Y of the first napkin 10, When an external force directed from the outside to the inside in the direction Y 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 side portion of the excretion part-facing region C1 of the first napkin 10 is covered with liquid in the excretion part-facing region C2 where liquid is mainly absorbed. 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 from the viewpoint of avoiding soiling.
When the length of the second napkin 20 in the lateral direction Y in the excretory part facing region C2 is larger than the length of the lateral direction Y of the first napkin 10, the viewpoint of reducing discomfort in wearing at the side portion of the laminated napkin 1. Therefore, it is preferable that the second absorbent body 24 is not positioned at a portion of the second napkin 20 that protrudes from the excretion portion-facing region C1 of the first napkin 10 in plan view.

In the example shown in FIG. 4 , in the second napkin 20 , the length in the lateral direction Y of the excretory part facing region C2 is slightly shorter than the length b in the lateral direction Y of the first napkin 10 .
On the other hand, in the second napkin 20, the length of the region in the lateral direction Y near the excretory part facing region C2 of each of the front region F2 and the rear region R2 is approximately the same as that of the first napkin 10, and the region The side edge of the first napkin 10 and the side edge 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 b of the first napkin 10 in the horizontal direction Y and the second It means that the length difference in the transverse direction Y of the napkin 20 is less than 2 mm.
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 in the lateral direction Y in the excretory part facing region C2 is preferably the same as or shorter than the length b in the lateral direction Y 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 excretory part facing region C2, 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 b in the lateral direction Y of the first napkin 10 from the length b in the lateral direction Y of the second napkin 20 is preferably 0 mm or more and 6 mm or less, more preferably 1 mm or more and 4 mm or less. The length of the second napkin 20 in the horizontal direction Y may be set so as to be

In the laminated napkin 1 , the length d in the longitudinal direction X of the second napkin 20 is preferably smaller than the length a in the longitudinal direction X of the first napkin 10 .
From the viewpoint of preventing the first napkin 10 from being soiled with liquid when using the laminated napkin 1 before peeling the second napkin 20, the second napkin 20 is the first napkin 10 in the longitudinal direction X. It preferably extends from at least a portion of the front region F1 to at least a portion of the rear region R1 through the excretory portion-facing region C2.
As described above, from the viewpoint of making it easier to pick up the second napkin 20 with fingers when peeling the second napkin 20, or making it easier to visually confirm the pinched part, the vertical direction X of the second napkin 20 The length d is preferably smaller than the length a in the longitudinal direction X of the first napkin 10 .

The length a 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 b in the lateral direction Y of the first napkin 10 is preferably 7 cm or more and 12 cm or less, more preferably 8 cm or more and 11 cm or less.
The length s of the first absorbent body 14 in the longitudinal direction X is preferably 15 cm or more and 37 cm or less, more preferably 17 cm or more and 32 cm or less. The length c of the first absorbent body 14 in the lateral direction Y is preferably 4.5 cm or more and 9.5 cm or less, more preferably 5.5 cm or more and 8.5 cm or less.
The length d 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. The length e in the horizontal direction Y of the maximum width portion of the second napkin 20 and the length e′ in the horizontal direction Y of the minimum width portion are preferably 7 cm or more and 12 cm or less, more preferably 8 cm or more and 11 cm or less. .
The length t of the second absorbent body 24 in the longitudinal direction X is preferably 10 cm or more and 25 cm or less, more preferably 12 cm or more and 23 cm or less. The length f of the second absorbent body 24 in the horizontal direction Y is preferably 4.5 cm or more and 9.5 cm or less, more preferably 5.5 cm or more and 8.5 cm or less.
In the longitudinal direction X, the distance u between the front end of the first napkin 10 and the front end of the second napkin 20 is preferably 3 mm or more, more preferably 6 mm or more. In the laminated napkin 1 , the front end of the second napkin 20 is shifted rearward from the front end of the first napkin 10 .
In the longitudinal direction X, the distance v between the rear end of the first napkin 10 and the rear end of the second napkin 20 is preferably 3 mm or more, more preferably 6 mm or more. In the laminated napkin 1 , the rear end of the second napkin 20 is shifted forward from the rear end of the first napkin 10 .

The length g in the vertical direction X of the first fixing portion 2 is appropriately set according to the lengths in the vertical direction X of the excretion portion facing regions C1 and C2 and the positions of the folded portions L1 and L2.
From the viewpoints of wearability, liquid absorbency, and discardability, the length g of the first fixing portion 2 in the vertical direction X is preferably 30 mm or more and 100 mm or less, more preferably 40 mm or more and 90 mm or less.
From the viewpoint of effectively suppressing the deformation of the excretory part facing region C2 when worn and the displacement of the second napkin 20 with respect to the first napkin 10, and reducing the discomfort of wearing the side part, the first fixing part 2 is The length h in the lateral direction Y is preferably 3 mm or more and 15 mm or less, more preferably 5 mm or more and 10 mm or less.
From the viewpoint of effectively suppressing the positional deviation of the second napkin 20 in the lateral direction Y when worn, in the lateral direction Y, the side edge of the first fixing part 2 on the outer side in the lateral direction Y and the lateral side of the second fixing part 3 The distance p to the inner end in the direction Y is preferably 2 mm or more, and preferably 20 mm or less.

The distance q between the front end of the first fixing portion 2 and the first folded portion L1 in the longitudinal direction X, and the distance r between the rear end of the first fixing portion 2 and the second folded portion L2 suppress wrinkles. 1 mm or more, and more preferably 2 mm or more.

The second fixing part 3 is preferably provided at a position that does not overlap the second absorbent body 24 in a plan view. The diameter is preferably 0.5 mm or more and 10 mm or less, more preferably 1 mm or more and 8 mm or less, from the viewpoint of suppressing curling of the second napkin and from giving a hard impression to the wearer.
From the viewpoint of making it easier to pick up the second napkin 20 when peeling the second napkin 20, the distance w in the lateral direction Y between the pair of second fixing parts 3 (unfixed area) is preferably 25 mm or more. , 45 mm or more.

The distance k between the first fixing part 2 and the second fixing part 3 positioned in front in the front region F2 and the distance n between the first fixing part 2 and the second fixing part 3 positioned in the rear in the rear region R2 are It is preferably 10 mm or more, more preferably 15 mm or more, from the viewpoint of buffering the torsional force applied by the wearer's motion. When the wearer is sitting, a force is often applied to the shorts and the laminated napkin 1 in a forward direction due to a shift in the sitting position. A longer distance between the first fixing part 2 and the second fixing part 3 is preferable.

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 2 is , 90 mm ² or more and 600 mm ² or less, and more preferably 200 mm ² or more and 500 mm ² or less.
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 second 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.

[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 attaches a second napkin 20 as an absorbent article to the skin side of another absorbent article such as a pad type or pants type that the wearer already possesses, and attaches the second napkin 20 with the first fixing part 2 and the second fixing part 3. It can be fixed and used, and it is possible to select a usage method that suits the lifestyle of the wearer.
In this case, the non-skin side 20b of the second napkin 20 is provided with the first fixing portion 2 and the second fixing portion 3 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. You can be conscious of wearing it facing 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 laminated napkin 1 of the above 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, both lateral side portions (side portions) of the area facing the excretion portion of the first napkin are covered by the wing portions of the second napkin, and the first It is easy to suppress contamination by liquid on the side part of the napkin.

1 ... Laminated napkin (laminated absorbent article)
2... First fixing part 3... Second fixing part 10... First napkin (first absorbent article)
14... First absorbent body 20... Second napkin (second absorbent article, absorbent article)
24 Second absorbent body 31 Lateral side area of the second napkin F1 Front area of the first napkin F2 Front area of the second napkin C1 Excretion part facing area C2 of the first napkin Region facing the excretory portion of the second napkin R1 Rear region of the first napkin R2 Rear region of the second napkin X Vertical direction Y Horizontal direction

Claims (11)

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 layered absorbent article obtained by laminating a second absorbent article having a second absorbent body located at
the second absorbent article has a shorter longitudinal length than the first absorbent article,
The first absorbent article and the second absorbent article are divided longitudinally 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 through the excretory part-facing region to the rear region in a plan view,
A first fixing part for releasably fixing the first absorbent article and the second absorbent article, and a second fixing part having a smaller area than the first fixing part,
The first fixing portions extend in the vertical direction in a plan view and are positioned on both lateral sides of the excretion portion-facing region of the second absorbent article,
A layered absorbent article, wherein the second fixing portions are located in both lateral side areas of at least one of the front area and the rear area of the second absorbent article in a plan view. The layered absorbent article according to claim 1, wherein the first fixing part is a reattachable fixing means. The layered absorbent article according to claim 1 or 2, wherein the second fixing portion is configured by pressing and fixing the first absorbent article and the second absorbent article. The layered absorbent article according to any one of Claims 1 to 3, wherein the second absorbent article is not fixed to the first absorbent article at the longitudinal front end region and the lateral center region of the rear end region. sexual goods. The layered absorbent article according to any one of claims 1 to 4, wherein the first fixing portion is longitudinally separated from the second fixing portion. The layered absorbent article according to any one of claims 1 to 5, wherein the first fixing portion is laterally separated from the second fixing portion. having a laterally extending folding portion serving as a starting point for folding the layered absorbent article,
The layered absorbent article according to any one of claims 1 to 6, wherein the second fixing portion is positioned longitudinally outside the folding portion. having a laterally extending folding portion serving as a starting point for folding the laminated absorbent article,
The layered absorbent article according to any one of claims 1 to 7, wherein the first fixing portion does not overlap the folding portion in plan view. 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. , and
In the second absorbent article, in plan view, the second backsheet extends laterally outward from both lateral side edges of the second absorbent body, and the first fixing portion extends laterally outward from the second absorbent body. 9. The layered absorbent article according to any one of claims 1 to 8, wherein the absorbent body is positioned so as to overlap with the absorbent body. 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. , and
The layered absorbent article according to any one of claims 1 to 9, wherein the second fixing portion does not overlap the second absorbent body in plan view. It has a non-skin side and can be laminated by fixing it to the other absorbent article with the non-skin side facing the skin side of another absorbent article, and in the longitudinal direction corresponding to the front-back direction of the wearer. and a lateral direction orthogonal to the longitudinal direction, and is divided into a front region, an excretion part-facing region, and a rear region along the longitudinal direction,
a first fixing part for fixing the absorbent article to the other absorbent article so that the absorbent article can be peeled off from the other absorbent article, the first fixing part having an area larger than that of the first fixing part with a small second fixing part,
The first fixing portions extend in the vertical direction in a plan view and are positioned on both lateral sides of the excretion portion-facing region,
Said 2nd fixing|fixed part is each located in the horizontal direction both side area|regions in at least one of the said front area|region and the said rear area|region by planar view.

Images