JP6128599B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article such as a sanitary napkin, a panty liner (cage sheet), and an incontinence pad.

  In general, a sanitary napkin includes a top sheet, a back sheet, and an absorber disposed between both sheets, and is disposed on a non-skin facing surface of the back sheet in a crotch portion of clothing such as shorts. It is used by being fixed with an adhesive or the like (for example, Patent Documents 1 and 2). When removing a sanitary napkin used in this way from clothing, it is normal to hold the tip of the sanitary napkin, but it depends on the type of clothing such as shorts and external factors such as the climate. It may be difficult to peel off.

JP 2010-115558 A JP 2013-27598 A

  The sanitary napkin described in Patent Document 1 is formed in a wave shape in which the tip of the sanitary napkin is alternately arranged with convex curves and concave curves. There is no description about the shape or position of an adhesive or the like that is easily peeled off when the sanitary napkin is peeled from the clothing.

  Further, the sanitary napkin described in Patent Document 2 is similar to the sanitary napkin described in Patent Document 1, and the sanitary napkin has a wave-shaped tip, and a central convex curve portion located in the center. And a concave curved part on both sides of the central convex curved part, a convex curved part on the outside of each concave curved part, and a plurality of misalignment-adhering adhesive layers that are long in the longitudinal direction. And in the sanitary napkin of patent document 2, the said slip prevention adhesive layer is distribute | arranged corresponding to each position of the said center convex curve part and each said convex curve part, This center convex The curved portion and each convex curved portion are difficult to droop. However, since the anti-displacement pressure-sensitive adhesive layer is arranged in this manner, it is difficult to remove the sanitary napkin from the clothing.

  Therefore, this invention is providing the absorbent article which can eliminate the fault which the prior art mentioned above has.

  The present invention is a vertically long absorbent article comprising a top sheet, a back sheet, and an absorbent body disposed between the two sheets, and a fixing member that is fixed to clothing on the non-skin facing surface of the back sheet. The front edge of the longitudinal direction has a central portion projecting outward in the longitudinal direction at the center in the lateral direction, and a knob portion projecting outward at both lateral sides of the central portion. The outer periphery of the central portion and the outer periphery of each of the knob portions are connected to form a V-shaped depression by intersecting a straight curve or a convex curve outward, and the absorbent article. In plan view from the back sheet side, the fixing member is formed in a rectangular shape that is long in the longitudinal direction of the absorbent article as a whole, and bisectors at both corners on the longitudinal front side of the rectangular shape. An absorbent article is provided in which each of the knobs is arranged on the extension line.

  According to the present invention, when the absorbent article is peeled off from the garment, it is easy to peel off and the appearance is good.

FIG. 1 is a plan view of a sanitary napkin according to an embodiment of the present invention as viewed from the surface sheet side. FIG. 2 is a plan view of the sanitary napkin shown in FIG. 1 as viewed from the back sheet side. 3 is a cross-sectional view taken along the line II of FIG.

The present invention will be described below based on preferred embodiments with reference to the drawings.
The absorbent article of the present embodiment is a sanitary napkin, and the sanitary napkin 1 (hereinafter also referred to as “napkin 1”) of the present embodiment is a top sheet 2, as shown in FIGS. The back sheet 3 and the absorbent body 4 arranged between the two sheets 2 and 3 are provided, and the back sheet 3 is provided with a fixing member 5 that is fixed to clothing on the back surface of the back sheet 3.
As shown in FIG. 1, the napkin 1 is formed symmetrically with respect to a center line CL extending in the longitudinal direction of the napkin 1.
In the present specification, the “skin facing surface” is a surface that is disposed on the skin side of the wearer when wearing, among the front and back surfaces of each member such as the surface sheet 2 constituting the napkin 1, The “surface” refers to a surface of the front and back surfaces of each member such as the surface sheet 2 constituting the napkin 1 that is directed to the side opposite to the wearer's skin when worn.
Further, the “Y direction” shown in each figure is a direction parallel to the center line CL, and is also the same direction as the vertical direction of the napkin 1. The “X direction” shown in each figure is a direction orthogonal to the center line CL, and is also the same direction as the lateral direction of the napkin 1.

As shown in FIGS. 1 to 3, the napkin 1 of the present embodiment includes a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and an absorbent body 4 disposed between the two and 3. And a pair of wings 6, 6 extending outward from both side portions 10 s along the longitudinal direction (Y direction) of the absorbent body 10.
As shown in FIG. 1 and FIG. 2, the absorbent main body 10 has an excretory part region A that contacts the body fluid excretion part (such as the vaginal opening) when the napkin 1 is worn. It is divided into a front region B disposed on the stomach side of the wearer from the excretion region A and a rear region C disposed on the back side of the wearer from the excretion region A when the napkin 1 is worn. The pair of wing portions 6, 6 are formed in the excretion facing region A of the absorbent main body 10.

  As shown in FIGS. 1 and 2, the absorbent body 4 of the absorbent main body 10 extends from the front region B to the rear region C, and in the plan view, the front and rear ends in the longitudinal direction (Y direction). The portion has a substantially rectangular shape that is rounded convexly outward.

  As shown in FIGS. 1 and 3, the topsheet 2 of the absorbent main body 10 covers the entire skin facing surface of the absorbent body 4. The front and rear end portions of the topsheet 2 in the vertical direction (Y direction) extend outward from the front and rear end portions of the absorber 2 in the vertical direction (Y direction). Both side portions along the vertical direction (Y direction) of the topsheet 2 are formed linearly along the vertical direction (Y direction). Both side portions along the vertical direction (Y direction) of the top sheet 2 slightly extend outward from the both side portions of the absorbent body 4 in the horizontal direction (X direction), but are longer than the side portions of the back sheet 3. It is arranged near the center line CL extending to the center. That is, the side part of the top sheet 2 is arranged between the side part of the absorber 4 and the side part of the back sheet 3.

  As shown in FIGS. 2 and 3, the back sheet 3 of the absorbent main body 10 covers the entire surface of the non-skin facing surface of the absorbent body 4. The front and rear end portions in the longitudinal direction (Y direction) of the back sheet 3 extend outward from the front and rear end portions of the absorber 2 in the longitudinal direction (Y direction). Both sides along the longitudinal direction (Y direction) of the back sheet 3 have contours that coincide with the contours of the absorbent main body 10 in the front region B and the rear region C, and the excretory region of the absorbent main body 10. In A, it extends laterally (X direction) outward from the positions of both sides of the absorbent main body 10 in the front region B and the rear region C. The extended portion of the back sheet 3 is a material for forming the wing portion 6.

  Moreover, in the napkin 1, the absorptive main body 10 is provided with a pair of side sheets 7 and 7, in addition to the top sheet 2, the back sheet 3, and the absorber 4, as shown in FIGS. Each of the pair of side sheets 7, 7 is disposed on and fixed to the skin facing surface side of the top sheet 2 and over the entire side portion along the longitudinal direction (Y direction) of the top sheet 2. In the front region B and the rear region C, the side seat 7 of the absorbent main body 10 slightly extends outward in the lateral direction (X direction) from the side portion along the longitudinal direction (Y direction) of the topsheet 2. In the excretion part area | region A, it has extended in the horizontal direction (X direction) outward rather than the position of the front area | region B and the back area | region C. FIG. The extending portion of the side sheet 7 and the extending portion of the back sheet 3 described above are fixed by adhesion, fusion, or the like, and the wing portion 6 is formed. The napkin 1 thus formed has an absorbent main body 10 and a pair of wing portions 6 and 6. In addition, each side seat | sheet 7 arrange | positions and fixes the elastic member extended in the vertical direction (Y direction), for example in the vicinity of the edge part of the horizontal direction (X direction) inner side (centerline CLy side). At the time of wearing, a three-dimensional gather in which a portion having a predetermined width from the end portion is separated from the topsheet 2 by the contraction force of the elastic member may be formed.

  As shown in FIGS. 1 and 2, the napkin 1 has a shape that protrudes outward in the longitudinal direction (Y direction) in the center in the lateral direction (X direction) at the end edge in the longitudinal direction (Y direction) front side. Center part 11 and laterally (X direction) both sides of the central part 11 are formed with knobs 12 and 12 having a shape protruding outward, and the outer periphery of the central part 11 and each knob part 12 The outer periphery is connected to form a V-shaped depression 13 by intersecting straight or outward convex curves. More specifically, the absorbent main body 10 formed from the top sheet 2, the back sheet 3, the absorber 4 and the pair of side sheets 7 and 7 as described above is more outward in the Y direction than the front edge of the absorber 4. At the center line CL at the position of the center line CL and projecting outward in the longitudinal direction (Y direction) and projecting outward at the respective positions on both sides of the central part 11 And a pair of knobs 12 and 12 which are curved and protruded. This knob 12 serves as a part to be picked when the napkin 1 is peeled off from the clothing. Note that, in the napkin 1, not only the front edge portion in the vertical direction (Y direction) but also the end edge portion in the vertical direction (Y direction) rear side, the central portion 11 and the pair of knobs 12, 12 is formed. The “curved outwardly convex” in the knob 12 may be a shape curved convexly in either the longitudinal direction (Y direction) outward or the lateral direction (X direction) outward, and may be obliquely outward. The shape may be curved in a convex manner. The napkin 1 in FIG. 1 has a shape that is convexly curved outward in an oblique direction.

  As described above, in the napkin 1, as shown in FIGS. 1 and 2, the central portion 11 is formed in a shape that protrudes by being curved outward and projecting in the vertical direction (Y direction). Since the knobs 12 and 12 are formed to protrude outwardly convexly, the outer periphery of the central part 11 and the outer periphery of each knob 12 intersect with the outwardly convex curves. The V-shaped depressions 13 are connected to each other. Thus, the V-shaped depression 13 is formed in a shape that does not have an arc that curves inwardly. That is, the contour on the front side in the longitudinal direction (Y direction) of the napkin 1 is not a so-called corrugated shape in which the outwardly convex shape and the inwardly convex shape are continuous, as shown in FIGS. As shown, the outwardly convex curves are continuous.

  The napkin 1 has a length in the vertical direction (Y direction) of about 170 mm to 350 mm, and a length in the horizontal direction (X direction) in the front region B (length at the widest portion) is 70 mm to 100 mm. Degree.

In the napkin 1, the central portion 11 that is curved outwardly in the longitudinal direction (Y direction) preferably functions as a knob when worn on clothing, and therefore preferably has a certain size that is easy to pick, Further, it is preferable that the knob portion 12 curved outwardly has a certain size that allows easy picking in consideration of ease of peeling operation.
Specifically, the width of the central portion 11 is preferably 18% or more and 64% or less, and 20% or more and 64% or less of the length in the lateral direction (X direction) in the front region B. Is more preferable.
Further, the width of each knob 12 is preferably 18% or more and 41% or less, and more preferably 20% or more and 41% or less of the length in the lateral direction (X direction) in the front region B. preferable.
More specifically, the radius of curvature of the central portion 11 that is convexly convex outward is preferably 10 mm or more and 120 mm or less, and is preferably 5 mm or more and a curvature radius or less, and is preferably 10 mm or more and 70 mm or less and a height of 8 mm or more. More preferably, it is less than the radius. The radius of curvature of each knob 12 that is convexly curved outward is preferably 10 mm or more and 45 mm or less, and preferably 5 mm or more and a curvature radius or less, and is 10 mm or more and 32 mm or less and a height of 8 mm or more and a curvature radius or less. More preferably.

  In addition, in the napkin 1 shown to FIG. 1 and 2, the curvature radius in the center part 11 and each knob | pick part 12 is substantially the same, However, It is not limited to this. For example, the central portion 11 has a radius of curvature that makes it easy to carry out the wearing operation at the time of wearing, or a point that the constricted part does not give a sense of incongruity during wearing. From the viewpoint of facilitating pulling in a predetermined direction, it can be made larger than the radius of curvature of each knob portion 12 curved outwardly and convexly. In this case, the radius of curvature of each knob 12 is more preferably 1.2 times or more, and particularly preferably 1.5 times or more.

  The fixing member 5 for fixing the napkin 1 to clothing is an adhesive layer formed by applying an adhesive to the non-skin facing surface of the back sheet 3 in the napkin 1. As shown in FIG. 2, the fixing member 5 is formed in a rectangular shape that is long in the longitudinal direction (Y direction) of the napkin 1 as a whole when the napkin 1 is viewed from the back sheet 3 side. . Specifically, in the napkin 1, each fixing member 5 is formed extending in parallel in the horizontal direction (X direction), and a plurality of fixing members 5 are spaced apart in the vertical direction (Y direction). It is arranged. A plurality of fixing members 5, 5, 5... Are gathered in this way, and the fixing member 5 as a whole is formed in a rectangular shape that is long in the vertical direction (Y direction).

  In the napkin 1, as shown in FIG. 2, on the extended lines of the bisectors ILb, ILb of the two corners 50b, 50b on the front side of the rectangular longitudinal direction (Y direction) which is the overall shape of the fixing member 5, Each knob 12 is arranged. In the napkin 1, not only the pair of knobs 12 and 12 on the front side in the vertical direction (Y direction) but also the pair of knobs 12 and 12 on the rear side in the vertical direction (Y direction) are also fixed members. 5 is arranged on an extension line of the bisectors ILc and ILc of the two corners 50c and 50c on the rear side in the longitudinal direction (Y direction) of the rectangular shape which is the overall shape of No. 5.

  The rectangular longitudinal direction (Y direction) front side corners 50b and 50b, which are the overall shape of the fixing member 5, have an rigidity of the absorbent body 4 measured by a handle ohm method according to JIS L1096 from 50 g / 75 mm. When it is large, it is arranged outside the outer periphery of the absorber 4. In addition, the two corners 50b and 50b are formed on the outer periphery of the absorber 4 or on the inner side of the outer periphery when the stiffness of the absorber measured by a handle ohm method according to JIS L1096 is 50 g / 75 mm or less. It is arranged in. In the napkin 1, the stiffness of the absorber 4 corresponds to the former, and both front corners 50b and 50b are arranged outward from the outer periphery of the absorber 4 as shown in FIG. The bending resistance value of the absorber 4 is obtained by using a product number HOM-3 manufactured by Daiei Chemical Seiki Seisakusho as a measuring device, and the slitter width is 10 mm. Measurement is performed using a 75 mm × 75 mm absorber taken out from the sanitary napkin. And it measures twice about CD direction (X direction) of this measurement sample, and calculates | requires those average values as a value of the bending resistance of the absorber.

  1 to 3, the napkin 1 includes a compressed groove 8 formed by compressing the top sheet 2 and the absorbent body 4, and the compressed groove 8 extends over the entire circumference of the absorbent body 4. Is formed. As shown in FIG. 2, the shape on the bisector ILb of the rectangular corner 50b, which is the overall shape of the fixing member 5, in the compressed groove 8 of the napkin 1 is an inwardly convex curved shape. More specifically, in the excretion region A, the compressed groove 8 of the napkin 1 is formed in the lateral direction (X direction) inward along the longitudinal direction (Y direction) on the both side portions 10s, 10s of the absorbent main body 10 (center). Side grooves 8a and 8a are formed in a convex curved shape (on the line CL side), and the front region B and the rear region C have a front groove 8b and a rear groove 8c that protrude outward. The compressed groove 8 of the napkin 1 has inwardly curved front concave grooves 8ab and 8ab that connect the longitudinal direction (Y direction) front ends of the side grooves 8a and 8a and both ends of the front grooves 8b. In addition, the inwardly convex curved rear side concave grooves 8ac and 8ac are provided to connect the longitudinal direction (Y direction) rear ends of the side grooves 8a and 8a and both ends of the rear groove 8c. That is, the compressed groove 8 of the napkin 1 is formed by connecting the front groove 8b, the pair of front concave grooves 8ab and 8ab, the pair of side grooves 8a and 8a, the pair of rear concave grooves 8ac and 8ac, and the rear groove 8c. 4 is an annular circumferential groove extending over the entire circumference. The forward concave grooves 8ab and 8ab in the compressed groove 8 having such a shape are arranged on the bisector ILb of the corner 50b on the front side in the rectangular vertical direction (Y direction) which is the overall shape of the fixing member 5. Has been. In the napkin 1, not only the pair of front side concave grooves 8ab and 8ab on the front side in the vertical direction (Y direction) but also the pair of rear side concave grooves 8ac and 8ac on the rear side in the vertical direction (Y direction) are the same. Further, they are arranged on bisectors ILc and ILc of both corners 50c and 50c on the rear side of the rectangular longitudinal direction (Y direction) which is the overall shape of the fixing member 5. The compressed groove 8 of the napkin 1 is formed by, for example, hot embossing or ultrasonic sealing.

  Moreover, the napkin 1 has the peripheral seal part 9 formed by joining over the entire periphery as shown in FIG. Specifically, as described above, the top sheet 2 covers the skin facing surface of the absorber 4, the back sheet 3 covers the non-skin facing surface of the absorber 4, and the pair of side sheets 7 and 7 are the top surfaces. Covering the entire side of the sheet 2 along the longitudinal direction (Y direction), the extending portions of the sheets 2, 3 and 7 extending from the outer peripheral edge of the absorbent body 4 are heat embossed, The peripheral seal portion 9 is formed by bonding with an adhesive such as sonic seal processing or hot melt. The peripheral seal portion 9 is formed over the entire periphery of the outer periphery, following the contour of the outer periphery of the napkin 1.

Moreover, in the napkin 1, between the absorber 4 and the back sheet 3 which form the absorptive main body 10, between the absorber 4 and the top sheet 2, and between the side sheet 7 and the back sheet 3, for example, Bonded by an adhesive for pattern coating such as a spiral pattern.
Moreover, as shown in FIGS. 1 and 3, the top sheet 2 and the side sheet 7 are fixed by a seal portion 81 that is fused by hot embossing or ultrasonic sealing. A pair of seal portions 81 are formed on both side portions 10s, 10s of the absorbent main body 10 so as to extend along the vertical direction (Y direction). Each seal portion 81 is formed in a convex curve shape in the lateral direction (X direction) outward (on the side opposite to the center line CL) in the excretion portion region A, and in the front region B and the rear region C, A corrugated shape in which a convex curve in the lateral direction (X direction) outward (on the side opposite to the center line CL) and a convex curve in the lateral direction (X direction) inward (on the center line CL side) are alternately connected. It is formed into a shape.

The material for forming the napkin 1 of the present embodiment will be described.
As the top sheet 2, the back sheet 3, the absorbent body 4, and the side sheet 7, various materials conventionally used in absorbent articles such as sanitary napkins can be used without particular limitation.
For example, as the surface sheet 2, a single layer or multilayer nonwoven fabric, an apertured film, or the like can be used. As the back sheet 3, a liquid hardly permeable or water repellent resin film, a laminate of a resin film and a nonwoven fabric, or the like can be used. As the absorbent body 4, an aggregate of fibers such as pulp fibers (which may be a nonwoven fabric) or an absorbent core in which water-absorbing polymer particles are held therein is used as a core wrap made of water-permeable thin paper or nonwoven fabric. Those coated with a sheet, various known polymer sheets, and the like can be used. As the side sheet 7, a stretchable film, a nonwoven fabric, a woven fabric, or a laminated sheet thereof can be used.

  As the adhesive forming the fixing member 5, any adhesive that can be used for absorbent articles such as sanitary napkins can be used without particular limitation. For example, a hot melt adhesive can be used. Examples of the hot melt adhesive include blocks such as styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), and styrene-ethylene-butylene-styrene copolymer (SEBS). Copolymer-based hot melt adhesives may be mentioned.

The effect at the time of using the napkin 1 of embodiment of this invention mentioned above is demonstrated.
As shown in FIGS. 1 and 2, the napkin 1 has a central portion 11 having a shape projecting outward in the center in the horizontal direction (X direction), and an end edge on the front side in the vertical direction (Y direction). Knob portions 12 and 12 having a shape protruding outward are formed on both sides of the portion 11. Therefore, it looks good. In addition, when the napkin 1 fixed to the crotch part of the clothing such as shorts is peeled off after use, if the napkin 12 in the front region B of the napkin 1 is picked and peeled off, the nail is removed. Since the portion 12 is arranged on the extended line of the bisectors ILb and ILb of the two corners 50b and 50b on the front side of the rectangular longitudinal direction (Y direction) which is the overall shape of the fixing member 5, the V-shaped Starting from the bottom of the recess 13, the peeling force is easily concentrated on the corner 50b, the fixing member 5 is easily peeled off, and the napkin 1 is easily peeled off from the clothing.

  In addition, as shown in FIGS. 1 and 2, the napkin 1 has a central portion 11 and a pair of knobs 12 and 12 at the front edge portion in the longitudinal direction (Y direction) curved outwardly and convexly. It is formed in a protruding shape. Therefore, the appearance of the napkin 1 is further improved, and it is difficult to be caught on clothes such as shorts or the skin of the wearer, and the usability is improved.

  1 and 2, the napkin 1 has a shape on the bisector ILb of the rectangular corner 50b that is the overall shape of the fixing member 5 in the compressed groove 8 of the napkin 1 (front side). The concave groove 8ab) has an inwardly convex curved shape. Therefore, when the napkin 1 is peeled off, the fixing member 5 is easily peeled off from the clothing, and the napkin 1 is further easily peeled off from the clothing.

  Further, in the napkin 1, the stiffness of the absorbent body 4 is higher than a predetermined value, and both front corners 50 b and 50 b are arranged outward from the outer periphery of the absorbent body 4 as shown in FIG. 2. . Thus, when the stiffness of the absorber 4 is higher than a predetermined value and is hard, the peeling force reaches the corner 50b of the overall shape of the fixing member 5 before reaching the hard absorber 4. The fixing member 5 is easily peeled off from the corner 50b without being affected by the absorber 4.

  In the napkin 1 of the present embodiment, the peripheral seal 9 does not reach the product peripheral edge on the front and rear end sides, and there is no peripheral seal near the recess 13. For this reason, when the peeling operation is performed with the knob portion 12, the peeling force is temporarily eased without being transmitted toward the center of the product at once, so that the force concentrates on the recess portion 13 and the napkin is torn. Can be prevented. Further, in the napkin 1, since the peripheral seal absence portion wider than the side portion side is provided on the central portion 11 side of the pick portion, it is possible to avoid the peeling force from being concentrated on the vertical component. Therefore, it is easy to apply force to the fixing member 5 from an oblique direction, and the napkin 1 is easily peeled off from the underwear.

  Further, it is preferable that the knobs 12 and 12 are curved outwardly in the oblique direction as shown in FIG. 1 because a force is easily exerted toward the corner of the fixing member 5 during the peeling operation. Note that “convexly outward in the oblique direction” means a shape having a convexly curved portion in both the vertical direction (Y direction) outward and the lateral direction (X direction) outward.

The present invention is not limited to the embodiment described above, and can be modified as appropriate.
For example, each V-shaped depression 13 of the napkin 1 described above has a shape in which the central portion 11 and the pair of knobs 12 and 12 protrude and protrude outwardly as shown in FIG. Since it is formed, outwardly convex curves intersect with each other, but at least one of the central portion 11 and the pair of knobs 12 and 12 does not curve outwardly convexly. It is formed so as to project in a polygonal shape, and a straight line and an outwardly protruding curve may intersect with each other, or straight lines may intersect with each other.

  Further, in the napkin 1, as shown in FIG. 1, not only the edge of the front region B in the longitudinal direction (Y direction) but also the edge of the rear region C in the longitudinal direction (Y direction). Similarly, the central part 11 and the pair of knobs 12 and 12 are formed, but the central part 11 and the pair of knobs 12 and 12 are provided only at the front edge in the longitudinal direction (Y direction). It only has to be formed. Further, in the napkin 1, as shown in FIG. 2, not only the pair of knobs 12 and 12 in the front region B but also the pair of knobs 12 and 12 in the rear region C is the same as the whole fixing member 5. It is arranged on the extended line of the bisectors ILc and ILc of the two corners 50c and 50c on the rear side in the longitudinal direction (Y direction) of the rectangular shape, but only the pair of knobs 12 and 12 in the front region B are provided. The rectangular shape, which is the overall shape of the fixing member 5, may be arranged on the extended lines of the bisectors ILb and ILb of the two corners 50b and 50b on the front side in the longitudinal direction (Y direction).

  Moreover, in the napkin 1, as shown in FIG. 1, the fixing member 5 that fixes the napkin 1 to clothing is an adhesive layer, but it may be a layer made of other locking means. Further, in the napkin 1, each fixing member 5 is formed extending in parallel in the horizontal direction (X direction), and a plurality of fixing members 5 are arranged at intervals in the vertical direction (Y direction). Although it is formed in a rectangular shape that is long in the vertical direction (Y direction) as a whole, it may be formed by applying a solid adhesive in a rectangular shape that is long in the vertical direction (Y direction). The members 5 are formed to extend in parallel to the vertical direction (Y direction), and a plurality of fixing members 5 are arranged at intervals in the horizontal direction (X direction) so as to be long in the vertical direction (Y direction) as a whole. It may be formed in a rectangular shape.

  Moreover, although the napkin 1 is equipped with the pressing groove 8 formed by compressing the surface sheet 2 and the absorber 4, as shown in FIGS. 1-3, the pressing groove 8 is not provided. Also good. Further, the overall shape of the compressed groove 8 may be another shape, and the front side concave grooves 8ab and 8ab in the compressed groove 8 are in the rectangular longitudinal direction (Y direction) front which is the overall shape of the fixing member 5. It does not have to be arranged on the bisector ILb of the side corner 50b.

  In addition to sanitary napkins, the absorbent article of the present invention can be suitably used for, for example, incontinence pads and panty liners.

1 Sanitary napkin (absorbent article)
DESCRIPTION OF SYMBOLS 10 Absorbent main body 10s Side part 2 Top sheet 3 Back sheet 4 Absorber 5 Fixing member 50b, 50c The rectangular corner which is the whole shape of the fixing member 6 Wing part 7 Side sheet 8 Squeeze groove 81 Seal part 9 Perimeter seal Part 11 Central part 12 Knob part 13 V-shaped depression A Excretion part area B Front area C Rear area CL Center line extending in the vertical direction

Claims (5)

A longitudinal absorbent article comprising a top sheet, a back sheet and an absorbent body arranged between both sheets, and comprising a fixing member for fixing to clothing on the non-skin facing surface of the back sheet,
At the edge part on the front side in the vertical direction, a central part that protrudes outward in the center in the horizontal direction and a knob part that protrudes outward on both sides of the central part are formed,
The outer periphery of the central portion and the outer periphery of each of the knob portions are connected to form a V-shaped depression by intersecting a straight line or a convex curve outward,
When the absorbent article is viewed in plan from the back sheet side, the fixing member is formed in a rectangular shape that is long in the longitudinal direction of the absorbent article as a whole, An absorbent article in which each of the knobs is arranged on an extension line of a bisector. The central portion and each of the knobs are formed in a shape that protrudes by being curved outward and convex,
2. The absorbent article according to claim 1, wherein the outer periphery of the central portion and the outer periphery of each of the knob portions are connected to each other as outwardly convex curves intersecting to form a V-shaped depression. The absorbent article includes a compressed groove formed by compressing the top sheet and the absorbent body, and the compressed groove is formed over the entire circumference of the absorbent body,
The absorptivity according to claim 1 or 2, wherein a shape on the bisector of the rectangular shape that is the entire shape of the fixing member in the squeezing groove is a linear shape or a curved shape that protrudes inward. Goods.   When the stiffness of the absorbent body measured by the handle ohm method according to JIS L1096 is larger than 50 g / 75 mm, both corners on the front side of the rectangular longitudinal direction which is the overall shape of the fixing member are The absorptive article given in any 1 paragraph of Claims 1-3 arranged outside rather than the perimeter of a body. When the bending resistance of the absorber measured by the handle ohm method according to JIS L1096 is 50 g / 75 mm or less, both corners on the front side of the rectangular vertical direction, which is the overall shape of the fixing member, are absorbed. The absorbent article according to any one of claims 1 to 3, wherein the absorbent article is disposed on the outer periphery of the body or inward of the outer periphery.

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