JP2023048759A - absorbent article - Google Patents

Abstract

To provide an absorbent article that has superior fitness regardless of thickness of an absorbent body, and thereby can prevent leakage.SOLUTION: An absorbent article includes an elongated body having a liquid permeable surface sheet, a liquid impermeable back sheet, and an absorbent body provided between the surface sheet and the back sheet. An elastic member being elastic in the width direction of the absorbent article is provided between the absorbent body and the back sheet. The elastic member has a bonding part bonded to the absorbent body and the back sheet at both ends in the width direction while being extended, and a non-bonding part positioned inside in the width direction from the bonding part.SELECTED DRAWING: Figure 1

Description

The present invention relates to absorbent articles.

2. Description of the Related Art Conventionally, as absorbent articles such as sanitary napkins, panty liners, and incontinence pads, there have been known ones in which an absorbent body is provided between a liquid-permeable topsheet and a liquid-impermeable backsheet. In order to prevent leakage in such absorbent articles, it is known to increase the thickness of the absorbent body to improve fit.

For example, in Patent Document 1, a raised portion extending in the longitudinal direction of the absorbent article raised toward the skin contact surface is provided in the central portion of the absorbent portion, and the absorbent portion corresponding to the raised portion is non-skin absorbent. An absorbent article is disclosed that has grooves extending in the longitudinal direction of the absorbent article on the contact surface side. The protuberant part protrudes toward the skin-contacting side by means of the grooves and forms a shape that conforms to the wearer's body.

JP-A-10-328232

However, since the absorbent article described in Patent Document 1 has a large thickness of the absorbent body, when the absorbent article is folded into an individual package, the thickness of the individual package becomes large, resulting in convenience of carrying. There is a point missing. In addition, since the absorbent article described in Patent Document 1 has a large thickness of the absorber, it tends to affect clothing when worn.

In view of the above points, an object of one aspect of the present invention is to provide an absorbent article that has excellent fitting properties and can suppress leakage regardless of the thickness of the absorbent body.

A first embodiment of the present invention provides an elongated main body having a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent body provided between the topsheet and the backsheet. An elastic member that can stretch in the width direction of the absorbent article is provided between the absorbent body and the backsheet, and the elastic member is provided at both ends in the width direction , a joined portion joined to the absorbent body and the backsheet in a stretched state, and a non-joined portion located on the inner side of the joined portion in the width direction.

According to the first aspect, when the elastic member shrinks inward in the width direction, a force directed inward in the width direction is applied to the main body of the absorbent article (absorbent article main body). It can be raised to the side. Since the absorbent article main body protrudes toward the topsheet side, the absorbent article main body can have a shape that conforms to the user's body. Even if it is an absorbent body, it can exhibit excellent fitting properties and suppress leakage.

A second form of the present invention has compressed grooves extending in the longitudinal direction of the absorbent article, which are provided at least on both sides in the width direction of the absorbent body, and the joints are arranged in plan view. , are arranged outside the compression grooves in the width direction.

According to the second aspect, since the vicinity of the compressed grooves is easily deformed, the absorbent article main body can be easily raised toward the topsheet side from the compressed grooves as a starting point. In addition, since the joint portion is arranged on the outer side in the width direction of the compressed groove in a plan view, a force directed inward in the width direction by the elastic member is applied to the region on the inner side of the compressed groove in the width direction, starting from the compressed groove. The absorbent article body can be raised more easily toward the topsheet side. In addition, since the compressed grooves extending in the longitudinal direction of the absorbent article are provided at least on both sides in the width direction of the absorbent article, the absorbent article main body can be raised in an elongated shape, and the absorbent article can be made more absorbent. The body can be shaped to conform to the user's body. Therefore, the absorbent article can exhibit better fitting properties and further suppress leakage.

In a third aspect of the present invention, the backsheet has an anti-slip portion for fixing the absorbent article to the underwear, and the anti-slip portion is more likely than the non-bonded portion in a plan view. It is arranged on the outside in the width direction.

According to the third aspect, the absorbent article is pulled outward in the width direction to adjust the height of the raised portion to a desired height, and in this state the absorbent article is fixed to the underwear, thereby removing the raised portion. It can be worn at any height, and can provide a fit according to the user's body shape and preference. In addition, when the absorbent article main body rises, it is possible to prevent the anti-slip portions from contacting and adhering to each other, thereby improving wearability.

A fourth form of the present invention has a pair of wings extending from both sides in the width direction of the main body, and the anti-slip portion is provided on the surface of the wings on the back sheet side.

According to the fourth aspect, the wings extending from both sides in the width direction of the absorbent article body can be easily gripped, and the wings can be gripped to pull the absorbent article body outward in the width direction. The height of the part can be easily adjusted to the desired height.

ADVANTAGE OF THE INVENTION According to one form of this invention, regardless of the thickness of an absorber, it has the excellent fitting property, and can provide the absorbent article which can suppress a leak.

1 is a plan view of an absorbent article according to one embodiment; FIG. FIG. 2 is a sectional view taken along line II of FIG. 1; FIG. 2 is a schematic diagram of the II-II section of FIG. 1 in a state in which the elastic member is stretched; FIG. 2 is a schematic diagram of the II-II cross section of FIG. 1 in a state in which the elastic member is contracted; FIG. 2 is a schematic view of the II-II cross section of FIG. 1 in a state in which elastic members are contracted, showing a first modified example of an absorbent article according to one embodiment; FIG. 10 is a plan view showing a second modification of the absorbent article according to one embodiment; FIG. 7 is a schematic diagram of the III-III cross section of FIG. 6;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each drawing, unless there is a particular description, the same reference numerals may be attached to the same or corresponding configurations, and the description thereof may be omitted. In this specification, the longitudinal direction of the absorbent article corresponds to the front-rear direction of the wearer, the front indicates the abdomen of the wearer, and the rear indicates the dorsal side of the wearer.

FIG. 1 is a plan view of an absorbent article according to one embodiment, and FIG. 2 is a cross-sectional view taken along line II of FIG. In FIG. 2, absorbent body adhesive layers 12, 12 and backsheet adhesive layers 13, 13, which will be described later, are omitted. 3 is a schematic diagram of the II-II cross section of FIG. 1 with the elastic member stretched, and FIG. 4 is a schematic diagram of the II-II cross section of FIG. 1 with the elastic member contracted. In FIGS. 3 and 4, the side nonwoven fabrics 7 and 7 and the compressed grooves 11, which will be described later, are omitted. As shown in FIGS. 1 and 2, an absorbent article 1 includes a liquid-impermeable backsheet 2, a liquid-permeable topsheet 3, and an absorbent body 4 provided between the two sheets 2 and 3. A main body (absorbent article main body) 10 having The absorbent article body 10 may have a second sheet 9 between the topsheet 3 and the absorbent body 4 . In order to retain the shape of the absorbent body 4, the absorbent body 4 may be wrapped with a wrapping sheet (not shown) made of crepe paper, non-woven fabric, or the like. When using the absorbent article 1, the absorbent article 1 is worn so that the back sheet 2 side of the absorbent article 1 is fixed to the crotch portion of shorts (underwear) or the like, and the top sheet 3 side faces the skin. In the embodiment shown in FIG. 1, the absorbent article 1 has a pair of wings W, W extending from both sides in the width direction D2 of the absorbent article main body 10, but there is a form without wings. can do.

The absorbent article body 10 as a whole has a predetermined length in the longitudinal direction (first direction D1 in the drawing) and a predetermined length in the width direction (second direction D2 in the drawing) orthogonal to the longitudinal direction. It has an elongated shape (elongated shape) with a width. Although the width of the absorbent article main body 10 is substantially constant in the illustrated example, it may vary along the longitudinal direction. The absorbent article main body 10 may have a shape and structure substantially symmetrical with respect to a center line (longitudinal center line) CL extending in the longitudinal direction. Also, it may have an asymmetrical shape and structure as long as the predetermined effects of the embodiment are achieved.

The absorbent article main body 10 also has a region (body fluid discharge port corresponding region) 30 corresponding to a body fluid discharge port such as a blood discharge port and a urination port of the wearer when the absorbent article body 10 is worn. The bodily fluid outlet corresponding region 30 has a center 31 . The center 31 of the region corresponding to the bodily fluid outlet is on the longitudinal center line CL and is located at the center of the length of the region 30 corresponding to the bodily fluid outlet in the longitudinal direction D1. The absorbent article 1 has a central region M including the bodily fluid outlet corresponding region 30 , a front region F in front of the central region M, and a rear region R behind the central region M. The central region M may be a region that roughly corresponds to the crotch region from the urination opening to the anus of the wearer when worn. The rear region R is a region corresponding to the groove of the wearer's buttocks, specifically, a region extending in the front-rear direction including a portion corresponding to the groove of the wearer's buttocks (region corresponding to the buttock groove). The rear region R can be said to be a region covering the entire gluteal cleft, or a region from the rear of the perineum or the vicinity of the anus to the vicinity of the lower end of the tailbone. The front end of the rear region R can be positioned approximately 110 to 170 mm rearward from the front end of the absorbent article 1 and approximately 30 to 60 mm rearward from the body fluid outlet corresponding region 30 .

In FIG. 1, this embodiment is shown such that the length of the front region F and the length of the rear region R are approximately the same, but the length of the rear region R is longer than the length of the front region F. The length of the front region F may be longer than the length of the rear region R.

The total length of the absorbent article 1 is preferably 140-360 mm, more preferably 230-270 mm, and even more preferably 240-260 mm. The longitudinal length of the rear region R can be 70 to 250 mm.

At the front and rear edge portions of the absorbent body 4, the outer edges of the backsheet 2 and the topsheet 3 are joined by an adhesive such as hot melt, heat sealing, or ultrasonic sealing. On the sides of the absorbent body 4, the side nonwoven fabrics 7, 7 provided along the longitudinal direction on both sides of the topsheet 3 side and the backsheet 2 are joined by the above-mentioned adhesive means. Wings W, W as described above may be formed.

As the back sheet 2, a sheet material having at least water impermeability, such as an olefin resin sheet such as polyethylene or polypropylene, can be used. A laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like, or a laminated sheet of a nonwoven fabric in which a waterproof film is interposed to substantially ensure liquid impermeability can be used. Moreover, from the viewpoint of preventing stuffiness, it is more desirable to use a material having moisture permeability. Such water-impervious/moisture-permeable sheet materials are produced by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching the sheet in a uniaxial or biaxial direction. Porous sheets can be used.

The surface sheet 3 is a liquid-permeable sheet that allows bodily fluids such as menstrual blood, vaginal discharge, and urine to quickly pass therethrough. As the surface sheet 3, a perforated or non-perforated nonwoven fabric, a porous plastic sheet, or the like is preferably used. The material fibers that make up the nonwoven fabric include, for example, olefins such as polyethylene and polypropylene, synthetic fibers such as polyester and polyamide, regenerated fibers such as rayon and cupra, blended fibers thereof, and natural fibers such as cotton. It can be used in combination of two or more. Examples of nonwoven fabric processing methods include spunlace, spunbond, thermal bond, meltblown, needle punch, and the like. Among these processing methods, the spunlace method is preferable because it can produce a soft nonwoven fabric, the spunbond method is preferable because it can produce a nonwoven fabric with excellent drapeability, and the thermal bonding method is preferable because it can produce a bulky and soft nonwoven fabric. In addition, composite fibers such as core-sheath type fibers, side-by-side type fibers, split type fibers, etc. can be used in which a fiber having a high melting point is used as a core and a fiber having a low melting point is used as a sheath.

Absorbent body 4 interposed between backsheet 2 and topsheet 3 is not limited as long as it can absorb and retain bodily fluids, but it preferably contains flocculent pulp and a water-absorbing polymer. As the absorbent polymer, superabsorbent polymer (SAP), superabsorbent fiber (SAF) and combinations thereof can be used. The pulp includes chemical pulp obtained from wood, cellulose fibers such as dissolving pulp, and artificial cellulose fibers such as rayon and acetate. Broad-leaved trees, softwoods, and the like are used as raw materials for chemical pulp, and softwoods are preferably used because of their long fiber length.

Synthetic fibers may also be mixed in the absorber 4 . As synthetic fibers, polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon, and copolymers thereof can be used. can also be used. In addition, composite fibers such as core-sheath type fibers, side-by-side type fibers, split type fibers, etc., in which a fiber having a high melting point is used as a core and a fiber having a low melting point is used as a sheath, can also be used. It is also possible to use hydrophobic fibers surface-treated with a hydrophilizing agent to impart affinity to body fluids.

The thickness of the absorbent body 4 can be in the range of 0.5 to 25 mm, preferably in the range of 1.5 to 6.5 mm. Absorber 4 may not have a uniform thickness over the entire surface. Moreover, the absorbent body 4 is preferably manufactured by a stacking or air-laid method.

As the side nonwoven fabric 7, a water-repellent treated nonwoven fabric or a hydrophilic treated nonwoven fabric can be used. For example, in order to improve the effect of preventing permeation of menstrual blood, vaginal discharge, and the like, or to improve the texture, it is preferable to use a water-repellent nonwoven fabric coated with a silicon-based or paraffin-based water repellent agent. In order to increase the absorption of menstrual blood and the like in the wing, it is preferable to use a hydrophilically treated nonwoven fabric as the material of the nonwoven fabric. As the type of nonwoven fabric, an air-through nonwoven fabric that is soft and resistant to creases and wrinkles is preferable.

The second sheet 9 may be any material as long as it is hydrophilic to body fluids. Specifically, recycled fibers such as rayon and cupra, natural fibers such as cotton, etc. are used to make the material itself hydrophilic, or synthetic materials such as olefins such as polyethylene or polypropylene, polyesters, and polyamides are used. A fiber surface-treated with a hydrophilizing agent to impart hydrophilicity can be used, and a porous plastic sheet can also be used. The second sheet 9 is joined by integrally heat-sealing the top sheet 3 and the second sheet 9 while being laminated adjacent to the surface of the top sheet 3 on the side of the back sheet 2 . In addition, although the second seat 9 is provided in this embodiment, the second seat 9 may not be provided.

Elastic members 5a, 5b, 5c, 5d, and 5e that are stretchable in the width direction D2 of the absorbent article 1 are provided between the absorbent body 4 and the backsheet 2, and the elastic members are provided at both ends in the width direction D2. , a joint portion A joined to the absorbent core 4 and the backsheet 2 in a stretched state, and a non-joint portion B located inside the joint portion A in the width direction D2. As shown in FIG. 3, the joint portion A is formed by attaching absorber adhesive layers 12, 12 to the surfaces of the elastic members 5a, 5b, 5c, 5d, and 5e on the absorber 4 side (the topsheet 3 side). The elastic members 5a, 5b, 5c, 5d and 5e have backsheet adhesive layers 13 and 13 on the backsheet 2 side surfaces. In this embodiment, the adhesive layer is used as the joining means, but the joining means is not limited to this, and any joining means such as fusion bonding and pressure bonding can be used. The non-bonded portion B is a portion that is not bonded to at least the absorbent body 4 . The non-bonded portion B may or may not be bonded to the backsheet 2 . As shown in FIG. 4, when the elastic members 5a, 5b, 5c, 5d, and 5e contract inward in the width direction D2, a force F directed inward in the width direction D2 is applied to the absorbent article main body 10. The main body 10 can be raised toward the topsheet side 3 . Since the absorbent article main body 10 protrudes toward the topsheet 3 side, the absorbent article main body 10 can have a shape that conforms to the user's body. , even the absorber 4 having a small thickness exhibits excellent fitting properties and can suppress leakage.

In the longitudinal direction D1, the distance between the elastic members 5a, 5b, 5c, 5d, and 5e and the center 31 of the body fluid outlet is preferably 20 to 80 mm or less. As a result, the absorbent article main body 10 can be easily raised toward the topsheet side 3, and the absorbent article main body 10 can have a shape that conforms to the body of the user. Furthermore, the elastic members 5a, 5b, 5c, 5d, 5e are preferably arranged within a region including the wings W, W in the longitudinal direction D1. Accordingly, by gripping the wings W and pulling the absorbent article main body 10 outward in the width direction, the height of the raised portion 14 can be more easily adjusted to a desired height.

The length of the non-bonded portion B is preferably 10 mm or more, more preferably 40 to 80 mm in a stretched state. As a result, the absorbent article main body 10 can be raised to a sufficient height toward the topsheet side 3, and the absorbent article main body 10 can be well fitted to the user's body. Both ends of the elastic members 5a, 5b, 5c, 5d, and 5e may be arranged within the region of the absorbent article main body 10 and outside both ends of the absorbent core 4 in the width direction D2. That is, both ends of the elastic members 5a, 5b, 5c, 5d, 5e are not arranged on the wings W, W.

The elastic members 5a, 5b, 5c, 5d, and 5e may be thread-like members (for example, thread rubber), and extend across the width direction D2 of the absorbent article 1 and at predetermined intervals along the longitudinal direction D1. placed. Among the five elastic members 5a, 5b, 5c, 5d, and 5e, the central elastic member 5c is positioned at the center 31 of the area corresponding to the body fluid outlet. The elastic members 5a and 5b extend from the center 31 of the area corresponding to the bodily fluid outlet to the front end side of the absorbent article 1, and the elastic members 5d and 5e extend from the center 31 of the area corresponding to the bodily fluid outlet to the absorbent article 1. They are arranged at different positions on the rear end side. The elastic members 5a, 5b, 5c, 5d, and 5e may be arranged at equal intervals or may be arranged at different intervals. For example, the closer the elastic members 5a, 5b, 5c, 5d, and 5e are to the center 31 of the region corresponding to the bodily fluid outlet, the smaller the interval is. The distance may be increased as the distance increases. Moreover, in the present embodiment, the elastic members 5a, 5b, 5c, 5d, and 5e are arranged parallel to each other, but they may be arranged so as to intersect each other. In this embodiment, there are five elastic members 5a, 5b, 5c, 5d, and 5e. You can set any number according to your needs. In this embodiment, the elastic members 5a, 5b, 5c, 5d, and 5e are filamentous, but are not limited to this, and may be sheet-shaped members having stretchability.

The elastic members 5a, 5b, 5c, 5d, and 5e are preferably joined to the absorbent body 4 and the backsheet 2 in a state of being stretched by 125 to 225% with respect to the contracted state (natural length). As a result, the absorbent article main body 10 can be sufficiently raised toward the topsheet side 3, the absorbent article 1 can be pulled outward in the width direction D2, and the height of the raised portion 14 can be adjusted to a desired height. can be adjusted to fit. The ratio of the length of the elastic members 5a, 5b, 5c, 5d, 5e in the stretched state to the length of the stretched state when joined to the absorbent body 4 and the backsheet 2 (hereinafter referred to as "stretch rate") may be the same or different in the plurality of elastic members 5a, 5b, 5c, 5d and 5e. For example, the closer the distance to the center 31 of the region corresponding to the bodily fluid outlet, the greater the expansion rate, and the farther the distance from the center 31 of the region corresponding to the body fluid outlet, the smaller the expansion rate. For example, the closer the distance to the center 31 of the region corresponding to the bodily fluid outlet, the smaller the expansion rate, and the farther the distance from the center 31 of the region corresponding to the body fluid outlet, the larger the expansion rate. Also, the elastic force (tension) of the elastic members 5a, 5b, 5c, 5d, and 5e can be selected to have any magnitude. The elastic forces of the elastic members 5a, 5b, 5c, 5d and 5e may be the same or different in the plurality of elastic members 5a, 5b, 5c, 5d and 5e. For example, the elastic force of the elastic member 5c may be increased, and the elastic forces of the other elastic members 5a, 5b, 5d, and 5e may be decreased.

The absorbent article 1 preferably has compressed grooves 11 extending in the longitudinal direction D1 of the absorbent article 1 and provided on both sides of the absorbent body 4 at least in the width direction D2. The compressed grooves 11 are formed as grooves recessed from the top sheet 3 toward the back sheet 2 side. The compressed grooves 11 may be formed line-symmetrically with respect to the longitudinal center line CL of the absorbent article 1 in plan view. The compressed grooves 11 can be formed by passing a laminate obtained by laminating the surface sheet 3 on the absorbent body 4 between a pair of pressure rolls. For example, a convex roll and a flat roll can be arranged on the surface sheet 3 side and the absorbent body 4 side of the laminate, and pressure can be applied from both rolls.

Although the planar view shape of the compression groove 11 is a loop shape in this embodiment, it is not limited to this, and can be an arbitrary shape. For example, a pair of arcuate compression grooves extending in the longitudinal direction D1 may be provided on both sides of the absorbent body 4 in the width direction D2. Moreover, the number of the pressing grooves 11 may be two or more, and may be an arbitrary number.

The joint portion A is arranged outside the compressed groove 11 in the width direction D2 in plan view. As a result, the vicinity of the compressed grooves 11 is easily deformed, so that the absorbent article main body 10 can be easily raised toward the topsheet 3 side from the compressed grooves 11 as a starting point. Since the joint portion A is arranged outside the compressed grooves 11 in the width direction D2 in a plan view, the elastic members 5a, 5b, 5c, 5d, and 5e are formed in the width direction D2 inside the compressed grooves 11. A D2 inward force F is applied, and the absorbent article body 10 can be more easily raised toward the topsheet 3 with the compressed grooves 11 as starting points. Further, since the compressed grooves 11 extending in the longitudinal direction D1 of the absorbent article 1 are provided at least on both sides in the width direction D2 of the absorbent body 4, the absorbent article 1 can be raised in an elongated shape. , the absorbent article 1 can be formed in a shape that conforms to the body of the user. Therefore, it is possible to exhibit better fit and further suppress leakage.

The compressed grooves 11 have a function of drawing in body fluids and guiding them in the longitudinal direction D1, in addition to functioning as starting points for further raising the absorbent article main body 10 toward the topsheet 3 side. During normal use of the absorbent article 1, body fluids are discharged directly to the central region M including the region 30 corresponding to the body fluid outlet. Part of the bodily fluid received in the central region M is absorbed by the absorbent body 4 through the surface sheet 3 at the position where it is received, but part of the body fluid may diffuse and migrate in the absorbent body 4 in the planar direction. . During diffusion, body fluids can be guided in longitudinal direction D1 along the denser squeeze grooves 11 of the absorbent body 4 . Therefore, the absorbent article 1 of the present embodiment can draw bodily fluids through the compressed grooves 11 and guide them in the longitudinal direction D1.

The compressed groove 11 preferably has a low compressed portion and a high compressed portion formed to have a recess deeper than the low compressed portion. The high compression portion may be formed at the location shown in black in FIG. The presence of the high compression portion is preferable because the function of drawing in and guiding body fluid can be enhanced.

The side of the backsheet 2 facing the underwear (non-skin side) is provided with a non-slip portion 8 for fixing the absorbent article 1 to the crotch portion of shorts (underwear) or the like during wearing. The stop portion 8 is arranged outside the non-joint portion B in the width direction D2 in plan view. The anti-slip portion 8 is preferably made of an adhesive layer. As a result, the absorbent article 1 is pulled outward in the width direction D2, the height of the raised portion 14 (the portion to be raised) is adjusted to a desired height, and the absorbent article 1 is fixed to the underwear in that state. The protuberance 14 can be attached at any height, and fit according to the body shape and taste of the user can be provided. Moreover, when the absorbent article main body 10 rises, it is possible to prevent the anti-slip portions from contacting and adhering to each other, thereby improving the wearability. It is preferable that the anti-slip portions 8 are provided on the surfaces of the wings W, W on the side of the back sheet 2 . As a result, the wings W, W extending from both sides in the width direction D2 of the absorbent article main body 10 can be easily gripped, and the absorbent article main body 10 can be pulled outward in the width direction D2 by gripping the wings W, W. Therefore, the height of the raised portion 14 can be easily adjusted to a desired height. When wings W are not provided, it is preferable to form the anti-slip portion 8 outside the non-bonded portion B. As shown in FIG.

Next, modified examples of the absorbent article 1 will be described. FIG. 5 is a schematic view of the II-II section of FIG. 1 in a state in which the elastic member is contracted, showing a first modification of the absorbent article according to one embodiment. FIG. 6 is a plan view showing a second modification of the absorbent article according to one embodiment, and FIG. 7 is a schematic diagram of the III-III section of FIG. 5 and 7, the side nonwoven fabrics 7, 7 and the compressed grooves 11 are omitted.

The non-bonded portions B of the elastic members 5a, 5b, 5c, 5d, and 5e may include portions bonded to the backsheet 2. In the example shown in FIG. 5, a plurality of backsheet adhesive layers 13 are intermittently provided on the surfaces of the elastic members 5a, 5b, 5c, 5d, and 5e on the backsheet 2 side. As a result, wrinkles on the back sheet 2 are dispersed in the state where the elastic members 5a, 5b, 5c, 5d, and 5e are contracted, so that the wearability can be improved.

In the backsheet 2, the anti-slipping portion 8 may be arranged outside the non-bonded portion B in the width direction D2 in a plan view, and may be arranged at any location. Moreover, the shape, number, and size of the anti-slip portions 8 can be any shape, number, and size. In the example shown in FIGS. 6 and 7, the anti-slip portion 8 extends in the longitudinal direction over the front region F, the central region M, and the rear region R outside the non-joint portion B in the width direction D2 in plan view. One is provided on each side of the center line CL. Further, the anti-slip portion 8 may include a portion that overlaps the joint portion A in a plan view. The anti-slip portion 8 is provided in a region of the backsheet 2 excluding the projection surface of the non-bonded portion B. As shown in FIG. In other words, the anti-slip portion 8 is not provided on the projection surface of the non-bonded portion B of the backsheet 2 . As a result, the absorbent article 1 can be more easily fixed to the undergarment with the protuberances 14 adjusted to the desired height. Further, by combining the example shown in FIG. 1 and the example shown in FIG. It may be provided on both sides of the longitudinal centerline CL across the front region F, the central region M and the rear region R.

As described above, the embodiment has been described, but the above embodiment is presented as an example, and the present invention is not limited by the above embodiment. The above embodiments can be implemented in various other forms, and various combinations, omissions, replacements, changes, etc. can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

1 Absorbent article 2 Back sheet 3 Top sheet 4 Absorbers 5a, 5b, 5c, 5d, 5e Elastic member 7 Side nonwoven fabric 8 Anti-slip part 9 Second sheet 10 Main body (absorbent article main body)
11 Compression groove 12 Absorbent adhesive layer 13 Back sheet adhesive layer 14 Raised portion 30 Bodily fluid outlet corresponding region 31 Body fluid outlet corresponding region center A Joint portion B Non-joined portion CL Longitudinal center line F Front region M Central region R rear region D1 first direction (longitudinal direction)
D2 Second direction (width direction)
W Wing

Claims (4)

An absorbent article comprising an elongated main body having a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent body provided between the topsheet and the backsheet,
An elastic member capable of stretching in the width direction of the absorbent article is provided between the absorbent body and the backsheet,
The elastic member has, at both ends in the width direction, joint portions joined to the absorbent body and the backsheet in a stretched state, and non-joint portions positioned more inwardly than the joint portions in the width direction. Absorbent article. Compression grooves extending in the longitudinal direction of the absorbent article are provided at least on both sides in the width direction of the absorbent body,
2. The absorbent article according to claim 1, wherein said joint portion is arranged outside said compressed groove in said width direction in plan view. a non-slip portion provided on the backsheet for fixing the absorbent article to the underwear;
The absorbent article according to claim 1 or 2, wherein the anti-slip portion is arranged outside the non-bonded portion in the width direction in plan view. Having a pair of wings extending from both sides in the width direction of the main body,
4. The absorbent article according to claim 3, wherein said anti-slip portion is provided on a surface of said wing facing said back sheet.

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