JP2015195814A - absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article which increases fitness in a region extending from a crotch to an abdominal side of a wearer while suppressing worsening of a wearing feeling such as stuffy feeling, discomfort, or the like and can suppress front leakage.SOLUTION: In an absorbent article, a length in a front-back direction of a central region S3 where wings are placed is longer than a length in the front-back direction of a front region S1 located on the front side of the wings. A compression part of an article body 2 includes: a first protruding part 81 protruding outside in a width direction; a second protruding part 82 protruding inside in the width direction on the front side of the first protruding part; a third protruding part 83 protruding outside in the width direction on the front side of the second protruding part; and a fourth protruding part 84 protruding inside in the width direction on the front side of the third protruding part. A vertex 82T of the second protruding part, a vertex 83T of the third protruding part, and a vertex 84T of the fourth protruding part are located on the front side of a center of the central region in the front-back direction.

Description

  The present invention relates to an absorbent article comprising an article main body having an absorbent body and a wing extending in the width direction from the article main body.

  DESCRIPTION OF RELATED ART Conventionally, the absorbent article which has the article main body which has an absorber, and the wing extended in the width direction rather than an article main body is known. In such an absorbent article, in order to suppress the pre-leakage of menstrual blood, the length in the front-rear direction of the front region located in front of the central region in which the wings are arranged is greater than the length in the front-rear direction of the central region. In addition, there is provided an absorbent article that is longer than the center region and longer than the length of the rear region in the front-rear direction (see FIG. 5 of Patent Document 1). Since the length of the front region in the front-rear direction is relatively long, the absorbent article disclosed in Patent Document 1 can cover a region extending from the wearer's crotch to the abdomen with a wide area, and suppresses front leakage.

Japanese Patent No. 3816924

  However, the above-described absorbent article has the following problems.

  The absorbent article of Patent Literature 1 covers a region extending from the crotch of the wearer to the abdomen with a relatively large area, and if the absorbent article does not fit the wearer's body, the absorbent article and the wearer There is a risk of leakage from the gap. Further, since the length of the front region in the front-rear direction is relatively long, if the absorbent article does not fit the wearer's body, the absorbent article depends on the region extending from the wearer's crotch to the ventral side. , There is a risk of discomfort when worn. In addition, since the area covering the region extending from the wearer's crotch to the stomach side is large, it tends to cause stuffiness.

  Moreover, the lifestyle of the wearer who uses an absorbent article changes with religions and cultures. As a result of investigating use modes of wearers having various lifestyles, the present applicant has found that there are wearers having a habit of shaving pubic hair, for example. It has been found that a wearer who has a habit of shaving pubic hair tends to generate a gap between the absorbent article and a region extending from the crotch to the front side, and particularly, a front leak tends to occur.

  Therefore, the present invention has been made in view of the above-described problems, and improves the fit of a region extending from the wearer's crotch to the ventral side while suppressing deterioration of wearing feeling such as stuffiness and uncomfortable feeling. It aims at providing the absorptive article which can control.

  An absorbent article according to the present disclosure includes a front-rear direction (front-rear direction L), a width direction orthogonal to the front-rear direction (width direction W), a skin-facing surface, a non-skin-facing surface located on the opposite side, and an absorber. A central region in which the wing is disposed (center 41), and an article body (article body 2) in which the top sheet and the back sheet overlap, and a wing (wing 41) extending outward in the width direction from the article body. Absorption having a region S3), a front region located in front of the front edge of the wing (front region S1), and a rear region located in the rear side of the rear edge of the wing (rear region S2). The length of the central region in the front-rear direction is longer than the length of the front region in the front-rear direction, and the center of the absorbent body is formed at a middle height toward the skin facing surface side. The article body includes the absorber and the surface sheet. A pair of pressing parts (squeezing part 80) is formed in which the thickness is compressed in the thickness direction, and the pair of pressing parts are symmetrical with respect to the center line in the width direction extending in the front-rear direction of the absorber. The compressed portion includes a first protruding portion (first protruding portion 81) protruding outward in the width direction and a second protruding portion (second protruding) protruding inward in the width direction on the front side of the first protruding portion. Part 82), a third projecting part (third projecting part 83) projecting outward in the width direction in front of the second projecting part, and projecting inward in the lateral direction in front of the third projecting part. A fourth protrusion (fourth protrusion 84), a vertex (vertex 82T) of the second protrusion, a vertex (vertex 83T) of the third protrusion, and the fourth protrusion The vertex (vertex 84T) is located in front of the center in the front-rear direction of the central region. The gist.

  It is possible to provide an absorbent article that can improve the fit of a region extending from the wearer's crotch to the abdomen while suppressing deterioration of wearing feeling such as stuffiness and discomfort, and can suppress front leakage.

It is a top view of an absorptive article concerning an embodiment. It is AA sectional drawing shown in FIG. It is an enlarged view of the pressing part in the top view shown in FIG. It is a figure which shows typically the absorbent article of a wearing condition.

  With reference to FIGS. 1-4, the absorbent article which concerns on embodiment is demonstrated. FIG. 1 is a plan view of the absorbent article. FIG. 2 is a cross-sectional view taken along the line AA of the absorbent article shown in FIG. The absorbent article 1 according to the present embodiment is, for example, a sanitary napkin.

  In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones. Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

(1) Whole structure of absorbent article The absorbent article 1 has the front-back direction L extended to a wearer's body front side and the body rear side, the width direction W orthogonal to the front-back direction, and the thickness direction T. The thickness direction T has a skin facing surface side T1 and a non-skin facing surface side T2 located on the opposite side.

  The shape of the absorbent article 1 in a plan view can be exemplified by a vertically long rectangle, an ellipse, and a saddle shape in the front-rear direction, and is not particularly limited as long as it is a shape that matches the shape of a female body and underwear.

  The absorbent article 1 includes an article main body 2 in which the top sheet, the absorbent body, and the back sheet overlap, and a pair of wings 41 extending outward in the width direction from the article main body 2.

  The absorbent article 1 includes a central region S3 in which the wing 41 is disposed, a front region S1 positioned on the front side of the front end edge 41F of the wing 41, and a rear region S2 positioned on the rear side of the rear end edge 41R of the wing. And having. The front region S1 is a region from the front end edge 1F of the absorbent article 1 to the front end edge 41F of the wing. The rear region S2 is a region from the rear end edge 1R of the absorbent article 1 to the rear end edge 41R of the wing. The length of the central region S3 in the front-rear direction is longer than the length of the front region S1 in the front-rear direction. The length of the front region S1 in the front-rear direction is shorter than the length of the rear region S2 in the front-rear direction. Note that the length of the front region S1 in the front-rear direction is 60 mm or more.

  The front edge and the rear edge of the wing can be defined as follows. In the absorbent article that extends inward in the width direction as the outer edge of the front region (or the rear region) moves toward the wing, the most constricted portion on the inner side in the width direction becomes the front edge (or the rear edge) of the wing. In the linear absorbent article in which the outer edge of the front region (or rear region) is along the front-rear direction, the inflection point between the line along the front-rear direction and the line extending outward in the width direction in the wing, It becomes the front edge (or rear edge) of the wing.

  Further, in the absorbent article that extends outward in the width direction as the outer edge of the front region (or the rear region) goes toward the wing, the line extends outward in the width direction toward the wing, and extends outward in the width direction in the wing. The inflection point of the line. The line extending outward in the width direction toward the wing is a line having an angle of 30 degrees or less with the line along the front-rear direction. The line extending outward in the width direction in the wing is a line having an angle of 30 degrees or less with the line along the width direction.

  The article body 2 includes a top sheet 10, a back sheet 20, and an absorber 30 positioned between the top sheet 10 and the back sheet. The top sheet 10 has liquid permeability and is located on the skin facing surface side facing the wearer's skin. The back sheet 20 has liquid impermeability and is located on the non-skin facing surface side opposite to the skin facing surface. The absorber 30 is disposed between the top sheet 10 and the back sheet 20. Therefore, the absorber 30 is shown with a broken line in FIG. Further, the absorbent article 1 includes a side sheet 15 provided on the outer side in the width direction of the absorbent body 30 in the width direction W.

  The wing 41 extends outward in the width direction from the article body 2. The wing includes a side sheet 15 and a back sheet 20.

  The top sheet 10 is a liquid-permeable sheet that transmits liquid such as body fluid. The top sheet 10 covers at least the surface of the absorber 30. The topsheet 10 of the present embodiment is made of an air-through nonwoven fabric. In addition, a plurality of dot-like compressed portions are formed on the top sheet 10 at intervals. The said dotted | punctate pressing part can be formed by hot embossing, for example.

  The surface sheet 10 is not particularly limited as long as it is a sheet-like material having a structure that transmits liquid, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, and a mesh sheet. Either natural fibers or chemical fibers can be used as the woven or non-woven material.

  Moreover, the surface sheet 10 which concerns on this Embodiment can be formed from one or more materials. For example, a woven fabric, a nonwoven fabric, a polymer film, a film nonwoven fabric laminate, etc., and combinations thereof can be included.

The back sheet 20 has substantially the same length as that of the top sheet 10. The back sheet 20 includes a film mainly composed of polyethylene, polypropylene, etc., a breathable resin film, a sheet in which a breathable resin film is bonded to a nonwoven fabric such as spunbond or spunlace, and a plurality of SMS nonwoven fabrics (spunbond nonwoven fabrics). Layered sheets and the like can be suitably used. For the back sheet 20, it is preferable to use a film obtained from a range of 15 to 30 g / m ² based on, for example, a low density polyethylene (LDPE) resin considering flexibility that does not impair the wearing feeling.

  The absorber 30 includes hydrophilic fibers and pulp. The center of the absorbent body 30 (the center in the width direction and the center in the front-rear direction) is formed at a middle height toward the skin facing surface. The absorber 30 includes a lower layer absorber 31 and an upper layer absorber 32 stacked on the lower layer absorber 31. The upper layer absorber 32 is smaller in the front-rear direction L and the width direction W than the lower layer absorber 31. The lower layer absorber 31 and the upper layer absorber 32 may be configured separately or may be integrated. The lower layer absorber 31 and the upper layer absorber 32 of the present embodiment are integrated. Moreover, the lower layer absorber 31 and the upper layer absorber 32 are bonded together by a hot melt adhesive. A portion where the lower layer absorber 31 and the upper layer absorber 32 are laminated constitutes a middle and high portion of the absorber. In FIG. 1, the middle and high portions of the absorber are shown with diagonal lines.

  The absorber 30 is formed of a material that can absorb body fluid such as menstrual blood. Suitable materials for the absorbent body 30 include, for example, cellulose, wood pulp fluff, rayon, cotton, and meltblown polymers such as polyester, polypropylene or coform. The absorbent body is only required to be able to absorb and hold liquid (menstrual blood), and is preferably bulky, hardly deformed, and has little chemical irritation.

  The side sheet 15 can be selected from the same material as the top sheet 10. However, the side sheet 15 preferably has hydrophobicity or water repellency in order to prevent leakage of menstrual blood to the outside in the width direction of the absorbent article 1. Specifically, a spunbond nonwoven fabric, an SMS nonwoven fabric, etc. are mentioned. The side sheet constitutes a contact surface with the skin. For this reason, it is preferable to use an air-through non-woven fabric in order to reduce rubbing irritation to the skin.

  The side sheets 15 are disposed on both sides of the top sheet 10. The side sheet 15 covers a part of the outer edge of the absorber 30 and the wing 41. In the absorbent article 1, the periphery of the surface sheet 10, the side sheet 15, and the back sheet 20 is joined, and the absorber 30 is enclosed. As a method for joining the top sheet 10 and the back sheet 20, any one or a combination of heat embossing, ultrasonic waves, or hot melt adhesive can be used.

  In the back surface sheet 20, the adhesive 50 is apply | coated to the surface which contacts underwear (refer FIG. 2). The pressure-sensitive adhesive 50 is formed by applying a pressure-sensitive adhesive on the non-skin contact surface of the back sheet 20 or by applying a pressure-sensitive adhesive to the release sheet 51 and then transferring it onto the non-skin contact surface of the back sheet 20. Is done. A plurality of adhesives 50 are arranged in a stripe shape extending in the front-rear direction L at the center in the width direction of the absorbent article. The adhesive 50 is also provided on the non-skin facing surface of the wing 41 (the surface in contact with the underwear).

  In a state before use, the adhesive 50 is covered with a release sheet 51. The release sheet 51 prevents the adhesive from deteriorating before use. And an adhesive is exposed by peeling a peeling sheet by a wearer at the time of use. In the form in which the absorbent article is individually packaged by the packaging sheet, the release sheet may not be provided, and the adhesive may be covered by the packaging sheet.

  As the adhesive, for example, a styrene block polymer is used as a thermoplastic polymer, a natural resin or a synthetic resin is used as a tackifier resin, and paraffin oil is used as a plastic material. Examples of the styrenic block polymer include styrene-ethylene-butadiene-styrene block copolymer (SEBS), styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), and styrene. -Ethylene-propylene-styrene copolymer (SEPS) etc. are mentioned.

Examples of the plastic material include a paraffin oil system that lowers viscosity, a naphthenic oil that increases tackiness, and an aroma oil that lowers cohesion and imparts color and odor. The application basis weight of the pressure-sensitive adhesive is 10 to 100 g / m ² , preferably 20 to 50 g / m ² . When the application basis weight is lower than 10 g / m ² , sufficient adhesive strength cannot be obtained, and the absorbent article may fall from the underwear or may be displaced with respect to the underwear. On the other hand, when the application basis weight is higher than 100 g / m ² , the adhesive strength is too high, and the absorbent article may be broken when the absorbent article is peeled off from the underwear.

  The absorbent article may be individually packaged by a packaging sheet. The material of the packaging sheet is not particularly limited. For example, a plastic film such as polyethylene, polypropylene, or polyester, various films such as nylon film, a breathable film stretched with a filler such as barium sulfate, or a non-woven fabric is used. For example, a laminated film may be used. Furthermore, in the form in which the pressure-sensitive adhesive is protected by the packaging sheet, the surface of the packaging sheet is treated so as to be peelable without reducing the pressure-sensitive adhesive force.

  It is preferable that the top sheet, the absorber, and the back sheet are bonded to each other to prevent interlayer separation. Moreover, it is preferable that the top sheet and the back sheet are joined and the absorbent body is enclosed in the periphery of the absorbent body. These joints can be used alone or in combination with heat embossing, ultrasonic waves, hot melt adhesives, and the like.

  The article main body 2 is formed with a squeezed portion 80 in which the absorber 30 and the topsheet 10 are squeezed in the thickness direction. The pressing unit 80 is recessed from the skin facing surface of the top sheet to the non-skin facing surface side, and is recessed from the non-skin facing surface of the absorber to the skin facing surface side. Processing of the pressing part on the skin contact surface side is performed on the skin facing surface of the top sheet. The pressing part on the skin contact surface side is formed one step lower than the surface of the absorbent article. The processing of the pressing part on the non-skin facing surface side is performed on the non-skin facing surface of the absorbent body. The pressing part on the non-skin facing surface side is formed in two stages from the surface of the absorbent article, and the low pressing part and the high pressing part are provided alternately.

  The pressing part 80 is provided in the area | region where an absorber is arrange | positioned, The shape is a polygon enclosed by the closed line like a square or an ellipse, and a circle. The shape of the pressing part may be a straight line or a curve extending along the longitudinal direction or the width direction of the absorbent article.

  The depth obtained by adding the compressed portion on the skin contact surface side and the compressed portion on the non-skin facing surface side is preferably 0.1 mm or more and 20 mm or less, but may be smaller than the thickness of the absorbent article. The depth of the pressing part on the skin contact surface side may be 20 to 80% with respect to the thickness of the absorbent article, but 30 to 60% in consideration of the fluidity of the liquid and the deformability with the pressing part as the folding point. Is preferred. Moreover, the high pressing part and low pressing part by the side of a non-skin opposing surface should just be 5 to 20% made into the thickness of an absorbent article, respectively. The depth of the low pressing portion is smaller than the depth of the high pressing portion. For example, when the depth of the pressing part on the non-skin facing surface side is smaller than 5%, the deformability and flexibility of the pressing part are deteriorated. Moreover, when the depth of the pressing part by the side of a non-skin opposing surface is larger than 20%, the pressing part itself becomes deep and it becomes weak. Specifically, in an absorbent article having a thickness of 7 mm, the pressing part on the skin facing surface side is 4 mm, the low pressing part on the non-skin facing surface side is 0.2 mm, and the high pressing part is 0.8 mm. preferable.

Examples of the shape of the compressed portion on the non-skin-facing surface include a dot shape, a lattice shape, and an oval shape, but when the low pressure expression portion and the high pressure expression portion are arranged alternately, the processing is Is easy. The area of the pressing part is preferably 0.5 mm ² to 100 mm ² . The pitch of the pressing parts is preferably 0.5 mm to 3 mm.

  Examples of the processing method for the pressing part include the following methods. An absorptive article is passed between embossing rolls facing up and down, and a pressing part can be processed. When the upper embossing roll is crimped to the skin contact surface side of the absorbent article, the embossing roll is provided with a substantially elliptical squeezed portion having one continuous depth. When the lower embossing roll is on the non-skin facing surface side, the embossing roll is subjected to pressing part processing having two levels of depth on the entire surface of the roll. The processing method of a pressing part is not restricted to this, You may reverse the upper and lower sides of a roll, change the pattern shape of two steps of depth, or adjust the temperature which is embossing conditions, and the distance between rolls suitably.

(2) Shape of pressing part Next, the shape of the pressing part in plan view will be described in detail based on FIG. The pressing part 80 has a symmetrical shape with respect to the center line 1CL in the width direction passing through the center in the width direction of the absorber 30 and extending in the front-rear direction L. The pressing part 80 has an annular annular pressing part C80, a width direction pressing part W80 provided in the annular pressing part, and a rear pressing part R80 located behind the annular pressing part.

  The annular squeezed portion C80 has a first protrusion 81 protruding outward in the width direction, a second protrusion 82 protruding inward in the width direction on the front side of the first protrusion 81, and a width on the front side of the second protrusion. A third projecting portion 83 projecting outward and a fourth projecting portion 84 projecting inward in the width direction on the front side of the third projecting portion 83 are provided. The 1st protrusion part 81, the 2nd protrusion part 82, the 3rd protrusion part 83, and the 4th protrusion part 84 are provided continuously in the front-back direction.

  The apex 81T of the first protrusion 81 is located behind the center S3CL in the front-rear direction of the central region S3. The vertex 82T of the second protrusion 82, the vertex 83T of the third protrusion 83, and the vertex 84T of the fourth protrusion 84 are located on the front side of the center S3CL in the front-rear direction of the central region S3. The vertex 81T of the first protrusion 81, the vertex 82T of the second protrusion 82, the vertex 83T of the third protrusion 83, and the vertex 84T of the fourth protrusion 84 are located in the central region S3.

  The center in the front-rear direction of the central region S3 is the center in the front-rear direction between the front end edge 41F of the wing 41 and the rear end edge 41R of the wing 41. The apex of the protrusion is the side edge in the width direction of the protrusion. Specifically, for example, the vertex 81T of the first protrusion 81 is an outer edge of the first protrusion, and the vertex 82T of the second protrusion 82 is an inner edge of the second protrusion. Further, the front-rear direction center S3CL of the central region S3 is the front-rear direction center of the wing.

  The 1st protrusion part 81 and the 3rd protrusion part 83 are circular arc shapes which have the center of a curvature radius inside the width direction rather than the said protrusion part. The 2nd protrusion part 82 and the 4th protrusion part 84 are circular arc shapes which have the center of a curvature radius in the width direction outer side from the said protrusion part.

  Moreover, the front-end part of a cyclic | annular pressing part has the shape where the center of the width direction protrudes toward the front side. The front end part of the annular squeezing part is a part of a certain range including the front end edge of the annular squeezing part and extending in the width direction from the front end edge. The rear end portion of the annular pressing portion has a shape in which the center in the width direction protrudes toward the rear side. The rear end portion of the annular compressed portion includes a rear end edge of the annular compressed portion, and is a part of a certain range extending in the width direction from the rear end edge.

  The curvature radius of the second protrusion is smaller than the curvature radius of the first protrusion and smaller than the curvature radius of the third protrusion. The radius of curvature of the third protrusion is smaller than the radius of curvature of the first protrusion. That is, when the radius of curvature of the first protrusion is 81R, the radius of curvature of the second protrusion is 82R, and the radius of curvature of the third protrusion is 83R, it is configured to satisfy the relationship of 82R <83R <81R. Yes.

  The length of the second protrusion in the front-rear direction is shorter than the length of the first protrusion in the front-rear direction, and is shorter than the length of the third protrusion in the front-rear direction. The length of the third protrusion in the front-rear direction is shorter than the length of the first protrusion in the front-rear direction. That is, assuming that the length of the first protrusion in the front-rear direction is 81L, the curvature radius of the second protrusion is 82L, and the curvature radius of the third protrusion is 83L, the relationship of 82L <83L <81L is satisfied. It is configured.

  The boundary C12 between the first protruding portion and the second protruding portion, the boundary C23 between the second protruding portion and the third protruding portion, and the boundary C34 between the third protruding portion and the fourth protruding portion have a width from a convex curve outward in the width direction. It is an inflection point that turns into a convex curve inward.

  The method of measuring the radius of curvature can be measured as follows, for example. The arc of the protrusion to be measured is specified, and the distance between both ends of the arc is measured. Let W be the distance between the ends of the arc. A line connecting both ends of the arc and an orthogonal line orthogonal to the line connecting both ends of the arc are set. Then, the distance between the intersection of the orthogonal line and the arc and the line connecting both ends of the arc is measured, and the distance is taken as X.

  If the radius of curvature is Y, Y satisfies the equation shown in Equation 1.

数１に示す式を変形し、曲率半径Ｙは、数２に示す式によって求めることができる。

The equation shown in Equation 1 is modified, and the radius of curvature Y can be obtained by the equation shown in Equation 2.

なお、防漏カフを有する吸収性物品等、弾性体を有する吸収性物品においては、吸収性物品を伸長させた状態で曲率半径を測定する。

In the case of an absorbent article having an elastic body, such as an absorbent article having a leak-proof cuff, the radius of curvature is measured with the absorbent article extended.

The width direction pressing part W80 is formed in front of the middle and high parts of the absorber 30 and in front of the central region S3. The width direction pressing part 85 has a shape in which the center in the width direction protrudes toward the front side. The width direction pressing part W80 is formed in the annular pressing part C80. The width direction pressing part W80 and the annular pressing part C80 are separated. The annular squeezing part C80 is provided outside the middle and high part of the absorber 30, and the rear squeezing part R80 that is separated from the middle and high part is located behind the annular squeezing part C80. The rear pressing part R80 has a shape in which the center in the width direction protrudes toward the rear side. The front end edge of the rear pressing part is located on the front side of the rear end edge of the annular pressing part C80. The rear end edge of the rear pressing part is located on the rear side of the rear end edge of the annular pressing part C80. The rear pressing part R80 and the annular pressing part C80 are separated from each other.

(3) Action / Effect FIG. 4 is a diagram schematically showing the absorbent article in a worn state. The article main body is joined to the skin facing surface of the crotch region of the underwear P, and the wing 41 is folded and joined to the non-skin contact surface of the crotch region. When the absorbent article is sandwiched between the legs of the wearer when worn or when the wearer moves the legs during wearing, a force is applied to the squeezed part of the absorbent article and the squeezed part is deformed from the base. At this time, a force is applied to the first protrusion and the third protrusion that are located relatively outside in the width direction, and the force is concentrated on the second protrusion that is located on the inner side in the width direction than the first protrusion and the third protrusion. . Therefore, the absorber is lifted to the wearer side with the left and right second projecting portions as base points, and is deformed into a convex shape on the skin facing surface side. Therefore, the fit of the absorbent article is improved.

  Since the second protrusion serving as a base point for deformation of the absorber is located in front of the center in the front-rear direction of the central region, the base point for deformation of the absorber is located in front of the center in the front-rear direction of the wing, and the front-back direction of the wing The gap between the body and the absorbent article can be reduced in front of the center. Lifting the absorber on the front side of the center of the wing in the front-rear direction can improve fit and reduce front leakage.

  The length of the front region in the front-rear direction is shorter than the length of the central region in the front-rear direction. Therefore, it is possible to suppress the stuffiness caused by the large area covering the region extending from the wearer's crotch to the stomach side. As described above, since the front leakage can be prevented without making the length of the front region in the front-rear direction longer than the length in the front-rear direction of the central region, the front leakage is suppressed while suppressing deterioration of wearing feeling such as stuffiness and discomfort. Can be suppressed.

  Further, the length of the wing in the front-rear direction is longer than the length of the front region in the front-rear direction, specifically, 60 mm or more. Since the length of the wing in the front-rear direction is relatively long, the absorbent article can be stably fixed to the underwear by the wing, the absorbent article is less likely to slip, and the fit between the wearer's body and the absorbent article can be maintained. . Therefore, even a wearer who has a habit of shaving pubic hair can suppress pre-leakage.

  Furthermore, a wearer who has a habit of shaving pubic hair may feel uncomfortable when the pubic hair begins to grow, causing the pubic hair to get caught on the surface of the absorbent article, or a tingling discomfort, resulting in a worse wearing feeling. There are things to do. However, the absorbent article according to the present embodiment fits the absorbent article in front of the front labial portion, and thus can suppress the uncomfortable feeling caused by the pubic hair that has begun to grow.

  In the absorbent article of the present embodiment, the length of the front region in the front-rear direction is 60 mm or more, and the length of the central region in the front-rear direction is longer than the length of the front region in the front-rear direction. Therefore, the length from the front-rear direction center of the wing to the front edge of the absorbent article is 90 mm or more. The center of the wing in the front-rear direction is a position that serves as a guide for the center of the mounting position when the wing is mounted, and is mounted at a position that contacts the vaginal opening of the wearer. Generally, the average length from the front labia commissure to the vaginal opening is about 70 mm. When the length from the center in the front-rear direction of the wing to the front end edge of the absorbent article is 90 mm or more, the front labia can be covered with the absorbent article, and front leakage can be suppressed.

  Moreover, since the center of the absorber 30 is formed in middle-high toward the skin opposing surface side, fit property improves. Furthermore, the center of the absorber 30 is a portion where a relatively large amount of body fluid is discharged. Since the center of the absorber 30 is medium-high, the absorption capacity of the part becomes high and leakage can be suppressed.

  The curvature radius of the second protrusion is smaller than the curvature radius of the first protrusion and smaller than the curvature radius of the third protrusion. Since the radius of curvature of the second protrusion is smaller than the radius of curvature of the adjacent protrusion, a force can be locally applied to the apex of the second protrusion. The deformation starting point of the absorber becomes clear, and the deformation state can be stably maintained.

  Since the radius of curvature of the third protrusion located on the front side of the second protrusion is larger than the radius of curvature of the first protrusion located on the rear side of the second protrusion, the deformation on the front side of the central region is centered. More stable than deformation on the back side of the region.

  Moreover, since the length of the 1st protrusion part located in the back side rather than the 2nd protrusion part is longer than the length of the 3rd protrusion part located in the front side rather than the 2nd protrusion part, it is 1st located in the back side. The arc curve of the projecting portion is made gentler than the arc curve of the third projecting portion, making it easier for the absorbent body to follow the collar portion and reducing leakage.

  A width direction squeezing portion extending in the width direction is formed in front of the middle and high portions of the absorbent body and in front of the central region. When the absorbent body is pressed from the outer side in the width direction to the inner side in the width direction, the deformation of the absorbent body can be suppressed by the width direction pressing portion, and the width of the absorbent body can be secured. Therefore, it can suppress that the front end edge of an absorber depends and can reduce a front leak. Moreover, since the width direction pressing part is located in the front side rather than the middle-high part and has a shape in which the center in the width direction protrudes toward the front side, the absorbent body can be absorbed without inhibiting the body fluid absorption performance in the middle-high part. It can be deformed along the front-rear direction.

  A surface sheet consists of an air through nonwoven fabric. The air-through nonwoven fabric is less likely to fuzz in the nonwoven fabric, but has high flexibility. Since the surface sheet is constituted by the air-through nonwoven fabric, even when the pubic hair is rubbed or stabbed, it is possible to give the wearer a soft touch that is difficult to fluff. Furthermore, since the dotted | punctate pressing part is formed in the surface sheet, it becomes difficult to produce fluff. Moreover, since the dotted | punctate pressing part is formed in the surface sheet, the contact area of a surface sheet and skin decreases, and a discomfort can be reduced.

(4) Other Embodiments As described above, the contents of the present invention have been disclosed through the embodiments of the present invention. However, it is understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. Should not. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, the absorbent article may not be provided with a side sheet, and the top sheet may be configured to extend to the outer edge of the wing. The wing of the absorbent article includes a top sheet, a back sheet, and an auxiliary sheet. Further, the wing does not have to include an auxiliary sheet. The wing is constituted by a top sheet and a back sheet, or a side sheet and a back sheet.

  Moreover, the absorbent article may have an elastic member that extends in the front-rear direction at the inner edge of the side sheet, and may include a leak-proof cuff disposed on the skin-facing surface side of the side edge portion of the absorbent body.

  The shape of the pressing part of an absorbent article is not limited to the shape of embodiment. For example, it becomes easy to follow a wearer's crotch shape because a pressing part is the shape which copied the wearer's crotch shape.

  Moreover, the absorbent article which concerns on a modification may be comprised so that the curvature radius of a 2nd protrusion part is larger than the curvature radius of a 1st protrusion part, and larger than the curvature radius of a 3rd protrusion part.

  The absorbent article which concerns on a modification may be comprised so that the curvature radius of a 3rd protrusion part may be larger than the curvature radius of a 1st protrusion part.

  As for the absorbent article which concerns on a modification, the width direction pressing part may not be formed, the width direction pressing part may be formed in the center area | region, and the width direction pressing part has overlapped with the middle-high part. It may be formed.

  The surface sheet may not have the dot-like compressed portions formed at intervals.

1: Absorbent article 1CL: Center in the width direction 1F: Front edge 1R: Rear edge 2: Article body 10: Top sheet 15: Side sheet 20: Back sheet 30: Absorber 31: Lower layer absorber 32: Upper layer absorber 41 : Wing 41F: Front end edge 41R: Rear end edge 50: Adhesive 51: Release sheet 80: Pressing part C80: Annular pressing part R80: Rear pressing part W80: Width pressing part 81: First protrusion 81T: First protrusion Vertex 82: second projection 82T: second projection 83: third projection 84: fourth projection 85: width direction compressed portion C12: boundary C23: boundary C34: boundary L: direction S1: front Region S2: Rear region S3: Center region T: Thickness direction T1: Skin facing surface side T2: Non-skin facing surface side W: Width direction

Claims (5)

The width direction perpendicular to the front-rear direction and the front-rear direction, the skin facing surface and the non-skin facing surface located on the opposite side,
An article body in which the top sheet, the absorber, and the back sheet overlap;
A pair of wings extending outward in the width direction from the article main body,
An absorbent article having a central region in which a wing is disposed, a front region located in front of a front edge of the wing, and a rear region located in rear of the rear edge of the wing,
The length in the front-rear direction of the central region is longer than the length in the front-rear direction of the front region,
The center of the absorbent body is formed at a middle height toward the skin facing surface side,
The article main body is formed with a squeezed portion in which the absorber and the topsheet are squeezed in the thickness direction,
The compressed portion has a symmetrical shape with respect to a center line in the width direction that passes through the center in the width direction of the absorber and extends in the front-rear direction.
The pressing portion includes a first protrusion protruding outward in the width direction, a second protrusion protruding inward in the width direction on the front side of the first protrusion, and the front side of the second protrusion. A third projecting portion projecting outward in the width direction, and a fourth projecting portion projecting inward in the width direction on the front side of the third projecting portion,
The apex of the second projecting portion, the apex of the third projecting portion, and the apex of the fourth projecting portion are absorbent articles located on the front side of the center in the front-rear direction of the central region.   2. The absorbent article according to claim 1, wherein a radius of curvature of the second protrusion is smaller than a radius of curvature of the first protrusion and smaller than a radius of curvature of the third protrusion.   The absorbent article according to claim 1 or 2, wherein a radius of curvature of the third protrusion is smaller than a radius of curvature of the first protrusion. On the front side of the middle and high parts of the absorbent body, and on the front side of the central region, a width direction pressing portion extending in the width direction is formed,
The said width direction pressing part is an absorbent article in any one of Claims 1-3 which has the shape where the said width direction center protrudes toward the front side. The surface sheet is made of an air-through nonwoven fabric,
The absorptive article according to any one of claims 1 to 4 in which a plurality of dotted compression parts are formed in said surface sheet at intervals.

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