JP5782263B2 - Sanitary napkin - Google Patents

Description

  The present invention relates to a sanitary napkin.

  Disposable absorbent articles such as sanitary napkins, panty liners, cage sheets, and incontinence pads have an absorber interposed between a liquid-permeable top sheet disposed on the front side and a back sheet disposed on the back side. Structures are common. In this type of absorbent article, for the purpose of preventing diffusion on the surface of bodily fluids, preventing stiffness by giving the absorbent body stiffness, raising the central part of the absorbent body and improving adhesion to the body, etc. A technique for arranging a pressing groove (embossed groove) on the skin contact surface of the top sheet is known.

  For example, in the absorbent article disclosed in Patent Document 1, the pressing groove is provided so as to extend in the longitudinal direction on both sides in the width direction of the excretory opening contact portion, and from the width direction outer side to the width direction center. The force is absorbed by the deeper squeezing of the squeezing groove with respect to the force, so that the excretion opening contact portion is not twisted or deformed.

JP 2008-295713 A

In the sanitary napkin, in particular, in the daytime sanitary napkin, the wearer usually moves such as walking while wearing the sanitary napkin. During walking, the force generated by the movement of the legs is generated not only in the direction from the outside in the width direction toward the center, but also from diagonally forward to diagonally backward and from diagonally backward to diagonally forward when the legs cross. At that time, the force applied in the oblique direction may cause a twist or deformation in the excretory opening contact portion, and there is a risk that the excretion of the excretion liquid from the portion where the twist or the like has occurred.
An object of the present invention is to provide a sanitary napkin that is configured such that the excretion opening abutment portion is not deformed even when walking or the like, and that the misregistration is prevented.

Next, means for solving the above problems and their effects will be described.
[Invention of Claim 1]
A sanitary napkin in which an absorbent body is interposed between a liquid-permeable top sheet disposed on the front surface side and a liquid-impermeable back sheet disposed on the back surface side,
A compressed groove is provided from the skin contact surface of the liquid-permeable top sheet to the absorbent body,
The pressing groove has a first front pressing portion and a first rear pressing portion, which are symmetrical with respect to the center line in the width direction, at the front and rear of the excretory opening contact portion,
The first front squeezed portion forms a corner of 35 to 60 degrees with respect to a line parallel to the longitudinal direction passing through the center in the width direction, and a linear portion extending diagonally leftward from the width direction center side; One linear portion extending from the center side in the width direction diagonally backward to the right,
The first rear pressing portion forms a corner of 35 to 60 degrees with respect to a line parallel to the longitudinal direction passing through the center in the width direction, and a linear portion extending in the left front direction from the width direction center side; One linear portion extending from the center side in the width direction diagonally right forward, one by one,
The squeezing groove extends in the width direction symmetrically with respect to the center line in the width direction in front of the first front squeezing part, and has an inward recess in the middle of each side in the width direction of the width direction center line. And including an integrated curved squeezing portion that protrudes forward, and extends behind the first rear squeezing portion in the width direction symmetrically with respect to the width direction center line and the width of the width direction center line In the middle of each direction, it has an inwardly recessed concave portion that includes an inwardly recessed portion,
A sanitary napkin characterized by that.

(Function and effect)
During walking, it is assumed that force is applied from diagonally forward to diagonally backward and from diagonally backward to diagonally forward of the absorbent article due to the movement of both legs crossing. By providing squeezing grooves at the front and rear of the excretory opening contact part so as to intersect with the direction of such force, the force is absorbed by bending the squeezing groove deeper, and the shape of the excretion opening contact part Can be maintained without being deformed.
The compressed groove here does not necessarily need to be given as a continuous line by hot embossing, etc., but it is dented in a linear form from other parts even if hot embossing etc. is given in the form of a broken line or dot As long as it is maintained.

[Invention of Claim 2]
2. The sanitary napkin according to claim 1, wherein the first front pressing portion and the first rear pressing portion are integrally provided without being separated from each other at the center in the width direction.

(Function and effect)
Although a 1st front pressing part and a 1st back pressing part are each arrange | positioned diagonally with respect to the longitudinal direction in the left-right symmetry, by providing these left and right pressing parts integrally without separating, In the vicinity of the center in the width direction, the flow of excretion liquid from the excretory opening contact portion in the front-rear direction is blocked, and it is possible to reduce and prevent the transfer leakage in the front-rear direction.

[Invention of Claim 3]
The sanitary napkin according to claim 1, wherein the first front pressing part and the first rear pressing part are spaced apart from each other at the center in the width direction, and the separation distance is 0.1 to 4.0 mm.

(Function and effect)
Even if each of the left and right first front pressing parts and the first rear pressing part is separated from each other, the effect of the pressing part that absorbs a force applied in an oblique direction if the separation distance is 0.1 to 4.0 mm. It is possible to play.

[Invention of Claim 4]
The length from the front end of the first front pressing portion to the rear end of the first rear pressing portion is 80 to 120 mm,
The separation distance between the front end of the first front pressing portion and the front end of the pressing portion including the recessed portion in front of the first front pressing portion is 40 to 60 mm,
The separation distance between the rear end of the first rear pressing portion and the rear end of the pressing portion including the recessed portion behind the first rear pressing portion is 40 to 60 mm.
The sanitary napkin according to any one of claims 1 to 3.

(Function and effect)
In particular, as the excretory opening contact portion and its vicinity, it is preferable to prevent twisting and deformation due to the movement of the legs during walking in the range of 80 to 120 mm in the longitudinal direction.

[Invention of Claim 5]
The sanitary napkin of any one of Claims 1-4 whose length of the width direction of a said 1st front pressing part and a said 1st back pressing part is 35-75 mm, respectively.

(Function and effect)
As the excretory opening contact portion and its vicinity, it is preferable to prevent twisting and deformation due to the movement of the legs during walking in the range of 35 to 70 mm in the width direction.

[Invention of Claim 6]
The pressing groove has a second front pressing portion and a third front pressing portion in this order in front of the first front pressing portion, and a second rear pressing portion and a third rear pressing portion behind the first rear pressing portion. Parts in this order,
The second front pressing part is an integral curved pressing part that extends in the width direction symmetrically with respect to the center line in the width direction and is convex forward.
The second rear pressing part is an integral curved pressing part that extends in the width direction symmetrically with respect to the center line in the width direction and is convex rearward.
The third front pressing part is a pressing part including the hollow part in front of the first front pressing part ,
The sanitary napkin according to any one of claims 1 to 5, wherein the third rear pressing portion is a pressing portion including the indentation portion behind the first rear pressing portion .

(Function and effect)
At least two pressing grooves extending in the width direction are provided in front of the first front pressing portion. Since the excretion liquid diffuses along the squeezing groove, the excretion fluid that flows forward from the excretion opening contact portion is blocked in the squeezing portion and is less likely to flow forward from the squeezing portion. In addition, by providing a plurality of compressed grooves, it is possible to give stiffness to the front side of the absorbent body, thereby reducing the front twist. In addition, it is preferable that the length of the width direction of the said at least 2 pressing groove is made into the length comparable as a 1st front pressing part.
At least two pressing parts extending in the width direction are provided behind the first rear pressing part. The excretion fluid that flows backward from the excretion opening contact portion is blocked in the pressing portion, and is less likely to flow backward from the pressing portion. In addition, by providing a plurality of compressed grooves, it is possible to give stiffness to the rear of the absorbent body, thereby reducing the back twist. The length in the width direction of the at least two pressing grooves is preferably the same length as the first rear pressing portion.

[Invention of Claim 7]
The pressing groove has an integral curved fourth front pressing portion that extends in the width direction symmetrically with respect to the center line in the width direction and is convex forward in front of the third front pressing portion. The back part of the said 3rd back pressing part has the 4th back pressing part of the integral curved shape extended in the width direction symmetrically with respect to the width direction centerline, and convex backward. Sanitary napkin.

[Invention of Claim 8]
The third front pressing part includes a part that can draw a tangent line parallel to the linear part of the first front pressing part on each side in the width direction of the center line in the width direction. The sanitary napkin according to claim 6 or 7, comprising a portion capable of drawing a tangent line parallel to the linear portion of the first rear compressed portion on each side in the width direction of the center line in the width direction.

[Invention of Claim 9]
The said pressing groove has a lateral pressing part which extends in the longitudinal direction on both side parts on the outer side in the width direction of the excretion opening contact part and curves toward the center in the width direction with the vicinity of the center in the longitudinal direction as a vertex. The sanitary napkin according to any one of 1 to 8.

(Function and effect)
By having the squeezing groove on the outer side in the width direction of the excretory opening contact part, the leg pressure applied from the outer side in the width direction toward the center can be absorbed, and the excretion and deformation of the excretion opening contact part can be prevented.

[Invention of Claim 10]
The sanitary napkin according to claim 9, wherein the first front pressing part, the first rear pressing part and the side pressing part are integrally formed.

(Function and effect)
By providing the squeezing groove so as to surround the excretory opening contact part, it is possible to block the excretion fluid flowing in all directions from the excretion opening contact part. In addition, by enclosing the excretion opening contact portion with the squeezing groove, it is possible to form a middle-high portion where the portion rises from the surroundings and fit the excretion opening.

  As described above, according to the present invention, the slant or deformation of the absorbent body of the excretory opening contact portion does not occur due to the force in the oblique direction caused by the movement of the leg of the wearer, and the occurrence of leakage. A difficult sanitary napkin can be provided.

It is a top view which shows 1st Embodiment of the sanitary napkin which concerns on this invention. It is the II arrow directional view of FIG. It is an enlarged view of the II part of FIG. It is an enlarged view of the III part of FIG. It is a top view which shows 2nd Embodiment. It is a top view which shows 3rd Embodiment. It is a top view which shows other embodiment. It is a schematic diagram of the shape of a wearer's inseam seen from the front.

  Next, embodiments of the present invention will be described with reference to the accompanying drawings. In the present invention, “front” refers to the front side when the wearer wears, and “rear” refers to the opposite side. “Longitudinal direction” refers to the front-rear direction, and “width direction” refers to the direction perpendicular to the front-rear direction. Further, “upper”, “upper layer”, and “front surface” indicate the skin contact surface side, and “lower”, “lower layer”, and “back surface” indicate the opposite side.

[First Embodiment]
FIG. 1 is a development view showing an example of an embodiment of a sanitary napkin as a sanitary napkin according to this embodiment. 2 is a view taken along line I-I in FIG. 1, FIG. 3 is an enlarged view of a portion II in FIG. 1, and FIG. 4 is an enlarged view of a portion III in FIG. The basic structure of the sanitary napkin 10 is that a liquid-permeable top sheet 1 made of a nonwoven fabric, an absorbent body 3 and a back sheet 2 made of a liquid-impervious sheet such as a polyethylene sheet are laminated in this order, and further, a side nonwoven fabric is formed on the side. 5 and 5 are arranged.

  As the back sheet 2, a sheet material having at least water shielding properties such as polyethylene is used, but in recent years, a material having moisture permeability tends to be used from the viewpoint of preventing stuffiness. The water- and moisture-permeable sheet material is a microporous material obtained by melting and kneading an inorganic filler in an olefin-based resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. A sheet is preferably used. As the back sheet 2, a polylaminated nonwoven fabric in which a plastic film and a nonwoven fabric are laminated may be used.

  As the liquid-permeable top sheet 1, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. As the material fibers constituting the nonwoven fabric, in addition to olefins such as polyethylene or polypropylene, polyesters, polyamides, and other synthetic fibers, regenerated fibers such as rayon and cupra, and natural fibers such as cotton can be used. A nonwoven fabric obtained by an appropriate processing method such as a method, a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is excellent in terms of being bulky and soft. When a large number of through holes are formed in the liquid permeable top sheet 1, the excrement is quickly absorbed and the dry touch property is excellent.

  The top sheet 1 and the back sheet 2 extend at the front rear side and both sides of the absorber 3. In the extended portion, the top sheet 1 and the back sheet 2 are joined by an adhesive such as hot melt, heat sealing, or the like. The extension of the top sheet 1 and the back sheet 2 is long in the width direction in the central part in the front-rear direction, and is a so-called wing-shaped flap that is folded and fixed to the back side (outer surface side) of the undergarment at this long part. W is configured.

As the side nonwoven fabric 5, a nonwoven fabric material subjected to appropriate water-repellent treatment or hydrophilic treatment can be used depending on the purpose of preventing menstrual blood or vaginal discharge from penetrating or enhancing touch feeling. . The side nonwoven fabric 5 can be made of natural fibers, synthetic fibers, regenerated fibers or the like and formed by an appropriate processing method. Preferably, the side nonwoven fabric 5 eliminates the feeling of stickiness and prevents stuffiness. For this reason, it is preferable to use a non-woven fabric with reduced basis weight and air permeability. Specifically, it is desirable to use a nonwoven fabric prepared with a basis weight of 18 to 23 g / m ² , and in order to prevent permeation of body fluids reliably, a silicone-based or paraffin-based water repellent is coated. The water-repellent treated non-woven fabric is preferably used.

  A second sheet made of a non-woven cloth or the like may be laminated between the top sheet 1 and the absorbent body 3 to improve body fluid diffusibility. Furthermore, you may provide the standing gather which has a horizontal-moisture prevention function of a bodily fluid on both sides.

  As shown in FIG. 1 and FIG. 2, the side nonwoven fabric 5 is a range from the inner side position of the absorbent body 3 to the outer edge of the liquid-impermeable back sheet 2 slightly beyond the inner edge of the absorbent body 3 from the widthwise intermediate portion. It is bonded by an adhesive such as hot melt. The side nonwoven fabric 5 may be provided with upright gathers having a function of preventing body fluid from being laterally leaked.

  On the back side of the back sheet 2, a fastening portion S1 for underwear such as shorts is usually provided. The wing flap W is also provided with a fastening portion S2. The fastening portions S1 and S2 can be formed by, for example, applying a pressure-sensitive adhesive made of a styrene / butadiene copolymer, a styrene / olefin copolymer, or the like in a strip shape in the front-rear direction. This fastening part is for fastening the sanitary napkin 10 to the underwear at the time of wearing, but in the stage of providing the sanitary napkin 10 to the consumer, a release sheet for individual packaging or the like is provided. It can also be fastened. The release sheet is made of a polyethylene sheet, a polypropylene sheet, a polyethylene terephthalate sheet, a laminated paper, or the like, and can be peeled from the fastening portion.

  As a material of the absorbent body constituting the absorbent body 3, any material can be used as long as it can absorb and retain body fluids. In addition to natural fibers such as pulp, synthetic fibers can also be used, or the amount of absorbed body fluids In order to increase this, a water-absorbing polymer can be used, or these can be used together as appropriate. As synthetic fibers, for example, polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon, and copolymers thereof can be used. It may be what you did. In addition, a composite fiber such as a core-sheath fiber, a side-by-side fiber, or a split fiber having a fiber having a high melting point as a core and a fiber having a low melting point as a sheath can also be used. As the synthetic fiber mixed in the absorbent body, it is desirable to use a hydrophobic fiber that has been surface-treated with a hydrophilizing agent so as to have affinity for body fluids. In general, fluffed pulp mixed with water-absorbing polymer powder is preferably used from the viewpoint of absorption function and price.

  The absorbent body 3 is desirably surrounded by the packaging sheet 4 in order to maintain its shape. The material of the packaging sheet 4 is not particularly limited as long as it has liquid permeability, but a water-decomposable sheet such as crepe paper can be suitably used. The absorber 3 is bonded to the back sheet 2 by an adhesive such as hot melt or an adhesive means such as heat seal. In the sanitary napkin 1 according to this embodiment, when the absorbent body 3 is surrounded by the packaging sheet 4, the absorbent body 3 and the back sheet 2 are indirectly joined via the packaging sheet 4. .

  On the surface side of the sanitary napkin 10 of the present embodiment, a plurality of pressing grooves for integrating the top sheet 1 and the absorbent body 3 are arranged. The 1st front pressing part 11, the 1st back pressing part 12, and the two side pressing parts 13 are provided so that the part which touches an excretion port may be surrounded. In the example of illustration, the pressing parts 11, 12, and 13 are attached | subjected as integral. A part surrounded by the compressed parts 11, 12 and 13 is defined as a central part CL.

  The enlarged view of the 1st front pressing part 11 is shown in FIG. 3, and the enlarged view of the 1st back pressing part 12 is shown in FIG. The first front squeezing part 11 and the first rear squeezing part 12 have a symmetrical shape with respect to the center line in the width direction of the sanitary napkin 10, and at least part of the width is increased from the outside in the longitudinal direction toward the center side. It has a linear portion extending from the center in the direction to the outside in the width direction, and exhibits a so-called “f” shape or “c” shape. Angles θ1 and θ2 formed by the straight portion with respect to the center line L in the width direction are set to 35 to 60 degrees. 45 to 60 degrees is particularly preferable.

  The first front squeezing part 11 and the first rear squeezing part 12 may not be separated from each other in the width direction center line, but may be integrated in the left and right directions (so-called “h” shape), or may be separated in the left and right directions (so-called "C" shape). When separating the left and right, the separation distance is preferably set to about 0.1 to 4.0 mm in order to ensure a certain length of the compressed portions 11 and 12.

  Although the side pressing part 13 may take any form of a linear form or a curvilinear form, if it is a gentle curve (height 0.5-4.0 mm is suitable) convex toward the center of the width direction, the width direction Since the force which goes to the center from the outside is efficiently absorbed in the pressing part, it is preferable.

  The length of the central portion CL in the longitudinal direction is preferably 80 to 120 mm, particularly preferably 80 to 100 mm. The length in the width direction of the central portion CL is preferably 35 to 70 mm, particularly 45 to 60 m. When the central portion CL is surrounded by the compressed groove, the absorbent body in this portion may have a two-layer structure.

  The pressing groove is also provided outside the central portion CL. A curved second forward pressing portion 14 that protrudes forward toward the outer front side of the first forward pressing portion 11, and a curved third forward pressing portion 15 that similarly protrudes forward toward the front side. Is arranged. In the example of illustration, although the 1st front pressing part 11 and the 2nd front pressing part 14 are formed as integral, you may make it space apart. Moreover, although the 3rd front pressing part 15 is spaced apart from the 1st front pressing part 11 and the 2nd front pressing part 14, it is formed integrally with the 1st front pressing part 11 and / or the 2nd front pressing part 14. May be.

  It is preferable that the length of the 2nd front pressing part and the 3rd front pressing part of the width direction is 35-70 mm, especially 45-60 mm. FIG. 8 shows a schematic view of the structure of the wearer's inseam as seen from the front. When there is no squeezing groove in front of the excretory opening contact part, or when only the squeezing groove having a small length in the width direction is arranged, as shown in FIG. 8 (A), the sanitary napkin is viewed from the front. In this case, a large gap is likely to be formed between the wearer's body on both sides in the width direction. This void tends to cause the leakage of excretory fluid. On the other hand, when the pressing groove having a long width in the width direction is arranged in front of the excretory opening contact portion, the position of the pressing groove does not follow the shape of the body, and therefore, it tends to be an inverted V shape (FIG. 8). (B)). When the front squeezing groove is 35 to 70 mm, the front side part of the sanitary napkin is easy to bend at the side end part of the squeezing groove along the shape of the body, as shown in FIG. It becomes a U-shape having an opening in. In this case, the gap between the sanitary napkin and the body is small, and the risk of leakage can be reduced. In particular, when the pressing groove is provided so that the absorbent body can be folded with the same width from the front to the excretory opening contact portion, the sanitary napkin can be more easily fitted to the shape of the body, which is preferable.

  The distance between the front ends of the first front pressing unit, the second front pressing unit, the second front pressing unit, and the third front pressing unit is preferably 20 to 30 mm, particularly preferably 20 to 25 mm. It is preferable that the second and third front pressing parts have a shape that follows the roundness of the pubic bone.

  On the outer rear side of the first rear pressing portion 12, a curved second rear pressing portion 16 that is convex rearward is disposed. Further, a curved third rear pressing portion 17 that is convex rearward is disposed on the rear side. In the example of illustration, the 3rd back pressing part is provided as one with the pressing groove extended in the longitudinal direction forward from the both ends, and is provided so that the three sides of the 2nd back pressing part 16 may be surrounded. In the example of illustration, although all the 1st back pressing parts, the 2nd back pressing parts, and the 3rd back pressing parts are separated, you may give any two or all three as one.

  It is preferable that the length of the 2nd back pressing part and the 3rd back pressing part of the width direction is 35-70 mm, especially 45-60 mm.

  The separation distance between the rear ends of the first rear pressing unit, the second rear pressing unit, the second rear pressing unit, and the third rear pressing unit is preferably 20 to 30 mm, particularly preferably 20 to 25 mm. It is preferable that the 2nd, 3rd back pressing part is made into the shape which is easy to deform | transform according to a motion of a collar part.

  In the example of illustration, the shape of a 2nd, 3rd front pressing part and the 2nd, 3rd back pressing part is provided with a different shape. Thereby, it has the advantage that a wearer can perform the visual recognition back and forth easily at the time of mounting | wearing.

[Second Embodiment]
The structure of the sanitary napkin 20 of the second embodiment is shown in FIG.
The sanitary napkin according to the second embodiment has a fourth front pressing unit 18 further in front of the third front pressing unit 15 and a fourth rear pressing unit 19 further rearward of the third rear pressing unit 17. Both the 4th front pressing part 18 and the 4th back pressing part 19 are symmetrical compression grooves which are symmetrical with respect to the longitudinal center line and are convex forward and backward, respectively.

  In this way, by providing further compression grooves in the front and rear, the effect of preventing the surface diffusion of excretory liquid can be enhanced, and the shape retention can be enhanced by giving the absorbent body stiffness. On the other hand, there is a problem that by providing more compressed grooves, the absorbent body becomes hard and the feeling of wearing is impaired. Therefore, it is preferable that the number of the front pressing part and the rear pressing part is three or four, respectively.

  In the illustrated example, four compression grooves are provided in front and rear of the excretory opening contact portion, respectively, but there are three in the front and four in the rear, or four in the front and three in the rear. It may be arranged as follows.

[Third Embodiment]
The structure of the sanitary napkin 30 of the third embodiment is shown in FIG.
In the third embodiment, the second and third front pressing parts 14 and 15 and the second and third rear pressing parts 16 and 17 have the same shape. In particular, there are types of sanitary napkins for daytime that have exactly the same shape before and after, and in such types of sanitary napkins, there is no difference in the shape of the squeezing groove before and after, whichever is worn It is good also as a form which can be performed.

[Other Embodiments]
As shown to FIG. 7 (A), you may provide about 3.0-8.0 mm gap | interval between the pressing parts 11, 12, and 13 which form the center part CL, respectively.

[Other reference forms]
As shown to FIG. 7 (B), it is good also as a structure which spaced apart the 2nd, 3rd front pressing part, the 2nd, 3rd back pressing part from each other pressing part.

  In FIGS. 1 to 9, sanitary napkins with wings having substantially the same front and rear shapes are shown as examples in the drawings. It can be carried out by providing a similar compressed groove. Moreover, it is applicable not only to the type with a wing.

  The present invention can be used as a sanitary napkin.

DESCRIPTION OF SYMBOLS 10,20,30 ... Sanitary napkin, 1 ... Liquid-permeable top sheet, 2 ... Back sheet, 3 ... Absorber, 4 ... Liquid-permeable sheet, 5 ... Side nonwoven fabric.

Claims (10)

A sanitary napkin in which an absorbent body is interposed between a liquid-permeable top sheet disposed on the front surface side and a liquid-impermeable back sheet disposed on the back surface side,
A compressed groove is provided from the skin contact surface of the liquid-permeable top sheet to the absorbent body,
The pressing groove has a first front pressing portion and a first rear pressing portion, which are symmetrical with respect to the center line in the width direction, at the front and rear of the excretion opening contact portion, respectively.
The first front squeezed portion forms a corner of 35 to 60 degrees with respect to a line parallel to the longitudinal direction passing through the center in the width direction, and a linear portion extending diagonally leftward from the width direction center side; One linear portion extending from the center side in the width direction diagonally backward to the right,
The first rear pressing portion forms a corner of 35 to 60 degrees with respect to a line parallel to the longitudinal direction passing through the center in the width direction, and a linear portion extending in the left front direction from the width direction center side; One linear portion extending from the center side in the width direction diagonally right forward, one by one,
The squeezing groove extends in the width direction symmetrically with respect to the center line in the width direction in front of the first front squeezing part, and has an inward recess in the middle of each side in the width direction of the width direction center line. And including an integrated curved squeezing portion that protrudes forward, and extends behind the first rear squeezing portion in the width direction symmetrically with respect to the width direction center line and the width of the width direction center line In the middle of each direction, it has an inwardly recessed concave portion that includes an inwardly recessed portion,
A sanitary napkin characterized by that.   2. The sanitary napkin according to claim 1, wherein the first front pressing portion and the first rear pressing portion are integrally provided without being separated from each other at the center in the width direction.   The sanitary napkin according to claim 1, wherein the first front pressing part and the first rear pressing part are spaced apart from each other at the center in the width direction, and the separation distance is 0.1 to 4.0 mm. The length from the front end of the first front pressing portion to the rear end of the first rear pressing portion is 80 to 120 mm,
The separation distance between the front end of the first front pressing portion and the front end of the pressing portion including the recessed portion in front of the first front pressing portion is 40 to 60 mm,
The separation distance between the rear end of the first rear pressing portion and the rear end of the pressing portion including the recessed portion behind the first rear pressing portion is 40 to 60 mm.
The sanitary napkin according to any one of claims 1 to 3.   The sanitary napkin of any one of Claims 1-4 whose length of the width direction of a said 1st front pressing part and a said 1st back pressing part is 35-75 mm, respectively. The pressing groove has a second front pressing portion and a third front pressing portion in this order in front of the first front pressing portion, and a second rear pressing portion and a third rear pressing portion behind the first rear pressing portion. Parts in this order,
The second front pressing part is an integral curved pressing part that extends in the width direction symmetrically with respect to the center line in the width direction and is convex forward.
The second rear pressing part is an integral curved pressing part that extends in the width direction symmetrically with respect to the center line in the width direction and is convex rearward.
The third front pressing part is a pressing part including the hollow part in front of the first front pressing part ,
The sanitary napkin according to any one of claims 1 to 5, wherein the third rear pressing portion is a pressing portion including the indentation portion behind the first rear pressing portion .   The pressing groove has an integral curved fourth front pressing portion that extends in the width direction symmetrically with respect to the center line in the width direction and is convex forward in front of the third front pressing portion. The back part of the said 3rd back pressing part has the 4th back pressing part of the integral curved shape extended in the width direction symmetrically with respect to the width direction centerline, and convex backward. Sanitary napkin.   The third front pressing part includes a part that can draw a tangent line parallel to the linear part of the first front pressing part on each side in the width direction of the center line in the width direction. The sanitary napkin according to claim 6 or 7, comprising a portion capable of drawing a tangent line parallel to the linear portion of the first rear compressed portion on each side in the width direction of the center line in the width direction.   The said pressing groove has a lateral pressing part which extends in the longitudinal direction on both side parts on the outer side in the width direction of the excretion opening contact part and curves toward the center in the width direction with the vicinity of the center in the longitudinal direction as a vertex. The sanitary napkin according to any one of 1 to 8.   The sanitary napkin according to claim 9, wherein the first front pressing part, the first rear pressing part and the side pressing part are integrally formed.