JP2015150056A - absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article that facilitates fine diffusion of urine or the like.SOLUTION: An absorbent article 1 includes a top sheet 2, a back sheet 3, and an absorbent laminate 10 disposed therebetween. The absorbent laminate 10 includes a first absorber 11 and a second absorber 21 in order from the side of the top sheet 2. The first absorber 11 includes a plurality of layers of sheet members and a water-absorbent resin between the sheet members and does not contain pulp fibers, and has an opening 18 extending in the front-rear direction. The second absorber 21 includes a shaped body 22 containing a water-absorbent resin and pulp fibers. The shaped body 22 has a groove 25 facing the opening 18 of the first absorber 11 and extending in the front-rear direction.

Description

  The present invention relates to absorbent articles such as urine pads (including light incontinence pads), sanitary napkins, disposable diapers and the like.

  2. Description of the Related Art Absorbent articles that have been devised in various ways to increase the diffusibility of urine and the like have been known. For example, Patent Document 1 has a top sheet, a back sheet, and an absorbent laminate provided between them, and the absorbent laminate has an upper absorbent layer and a lower absorbent layer as an absorbent core, An absorbent article in which an opening extending in the front-rear direction (corresponding to the front-rear direction of the wearer when the absorbent article is worn) is formed in the absorbent layer is disclosed. Further, Patent Document 2 has a top sheet, a back sheet, and an absorbent core provided therebetween, and an opening is formed in the absorbent core, and the opening extends in the front-rear direction toward the back sheet. An absorbent article provided with a diffuser in which grooves are formed is disclosed.

JP 2007-202575 A JP 2012-050744 A

  In the absorbent articles disclosed in Patent Documents 1 and 2, by providing the absorbent core with an opening or a diffuser extending in the front-rear direction, the diffusibility in the front-rear direction of urine or the like is increased, and urine or the like becomes the absorbent core. It is made to absorb suitably. In this way, in the absorbent article, by increasing the diffusibility of urine and the like in the front-rear direction, it becomes easy to make use of the absorbent core's overall absorption capacity, and side leakage of urine and the like is less likely to occur.

  This invention is made | formed in view of the said situation, The objective is to provide the absorbent article excellent in diffusibility, such as urine.

  The absorbent article of the present invention capable of solving the above problems is an absorbent article having a width direction and a front-rear direction, and having a top sheet, a back sheet, and an absorbent laminate provided therebetween. The absorbent laminate has a first absorbent body and a second absorbent body from the top sheet side; the first absorbent body includes a plurality of layers of sheet members, and has a water absorbent resin between the sheet members. It is configured not to have pulp fibers, and has an opening extending in the front-rear direction; the second absorbent body has a molded body containing a water absorbent resin and pulp fibers, and the molded body is made of the first absorbent body It is characterized by having a groove or an opening extending in the front-rear direction facing the opening.

  In the absorbent article of the present invention, a diffusion path such as urine is formed on the upper surface of the absorbent laminate by the opening of the first absorbent body and the groove or opening of the second absorbent body. As a result, urine or the like easily diffuses in the front-rear direction through the diffusion path, and in particular, the absorption performance in the second absorber is enhanced. In that case, since the 1st absorber is constituted so that it may have a water absorbing resin between sheet members, and it may not have a pulp fiber, if it absorbs urine etc., a water absorbing resin will swell and the 1st absorber Will swell up and down. As a result, the height of the diffusion path formed on the upper surface of the absorbent laminate is increased, and urine and the like are easily diffused in the front-rear direction without overflowing from the diffusion path. Therefore, even when excreted after the second time, urine or the like is easily absorbed by the absorbent laminate.

  The water-absorbing resin disposed in the first absorber preferably has a water absorption rate of 20 seconds or less by the vortex method. If the water absorbent resin having a high water absorption rate is arranged in the first absorbent body in this way, the urine etc. come into contact with the first absorbent body, so that the water absorbent resin of the first absorbent body swells quickly, A high diffusion path is quickly formed on the upper surface of the absorbent laminate. As a result, in the absorbent article, a high diffusion path is easily formed in the absorbent laminate from the first excretion, and urine and the like can be diffused well in the front-rear direction of the absorbent laminate.

  On the other hand, it is preferable that the water absorbing resin disposed in the second absorbent body has a water absorption speed of 40 seconds or more by a vortex method. If the water absorbent resin arranged in the second absorbent body has such a water absorption rate, the diffusibility of urine and the like in the second absorbent body is enhanced, and the absorbent capacity of the second absorbent body is utilized over a wide range. Become so.

  The first absorber is preferably formed narrower than the second absorber. If the first absorbent body is provided in this way, the entire first absorbent body is supported by the second absorbent body. When the first absorbent body absorbs urine or the like, the first absorbent body is more Easily swells high. Moreover, even if urine or the like overflows outward in the width direction of the first absorbent body, it is easily absorbed by the second absorbent body, and the absorbent capacity of the second absorbent body is easily utilized effectively.

  The opening provided in the first absorber is preferably formed wider than the groove or opening provided in the second absorber. If the first absorbent body and the second absorbent body are thus formed, urine etc. excreted from the wearer in the diffusion path formed by the opening of the first absorbent body and the groove or opening of the second absorbent body Can be guided smoothly, and urine and the like can be easily diffused in the front-rear direction of the absorbent laminate.

  The molded body of the second absorbent body has an upper molded body provided on the top sheet side and a lower molded body provided on the back sheet side, and an opening extending in the front-rear direction is provided in the upper molded body. By providing the molded body so as to overlap the opening of the upper molded body, a groove extending in the front-rear direction may be formed in the molded body. By configuring the molded body of the second absorbent body in this way, grooves can be easily formed in the molded body for manufacturing.

  The opening provided in the first absorbent body is preferably formed over the entire length of the first absorbent body in the front-rear direction, and the first absorbent body is preferably divided in the width direction. If the first absorbent body is formed in this way, the diffusibility of urine and the like in the absorbent laminate in the front-rear direction is increased, and in particular, the absorbability at the front-rear direction end of the second absorbent body is easily utilized effectively. Become.

  The absorbent article of the present invention is provided with rising flaps extending in the front-rear direction on both sides in the width direction of the top sheet, and the first absorbent body is provided inward in the width direction with respect to the base portion from which the rising flaps rise. It is preferred that If the first absorber is provided in this way, even if urine or the like is discharged in a large amount and urine or the like overflows from the diffusion path of the absorbent laminate onto the first absorber, It moves to a 2nd absorber through the clearance gap between a 1st absorber and the base of a standup flap, and comes to be suitably absorbed with a 2nd absorber. As a result, side leakage such as urine is less likely to occur.

  Two or more first absorbers may be provided overlapping each other. By providing two or more first absorbent bodies, more parts of the water absorbent resin can absorb urine or the like than when the same amount of the water absorbent resin is disposed on one first absorbent body. As a result, it becomes easier to form a diffusion path having a higher height on the upper surface of the absorbent laminate.

  In the absorbent article according to the present invention, a diffusion path such as urine is formed on the upper surface of the absorbent laminate by the opening of the first absorbent body and the groove or opening of the second absorbent body. Easily spread in the front-rear direction. In that case, since the 1st absorber is formed so that it may have a water-absorbing resin between sheet members, and may not have pulp fiber, if it absorbs urine etc., a water-absorbing resin will swell and the 1st absorber Will swell up and down. As a result, a high diffusion path is formed on the upper surface of the absorbent laminate, and urine or the like easily diffuses in the front-rear direction without overflowing from the diffusion path.

An example of the absorptive layered product provided in the absorptive article of the present invention is expressed, and the top view of an absorptive layered product is expressed. II-II sectional drawing of the absorptive laminated body shown in FIG. 1 is represented. An example of the absorptive layered product provided in the absorptive article of the present invention is expressed, and the top view of an absorptive layered product is expressed. The IV-IV sectional view of the absorptive layered product shown in Drawing 3 is expressed. An example of an absorptive article provided with the absorptive layered product shown in Drawing 3 is expressed, and a top view of an absorptive article is expressed. The VI-VI sectional view of the absorptive article shown in Drawing 5 is expressed.

  The absorbent article of the present invention has a top sheet, a back sheet, and an absorbent laminate provided therebetween. Examples of the absorbent article of the present invention include urine pads (including incontinence pads), disposable diapers, sanitary napkins and the like.

  The absorbent article has a front-rear direction and a width direction. The “front-rear direction” means a direction extending in the front-rear direction of the wearer's crotch when the wearer wears the absorbent article. “Width direction” means a direction that is on the same plane as the absorbent article and is orthogonal to the front-rear direction. In the present invention, the “upper side” means the wearer side when the absorbent article is worn, and the “lower side” is the side opposite to the wearer when the absorbent article is worn, that is, the outer side. Means. A direction extending from the upper side to the lower side is defined as a vertical direction.

  The shape of the absorbent article is not particularly limited. When the absorbent article is a urine pad, examples of the shape of the absorbent article include a substantially rectangular shape, an hourglass shape, a gourd shape, a battledore shape, and the like.

  When the absorbent article is a disposable diaper, the absorbent article includes, for example, a front abdomen, a back part, and a crotch portion provided between them and provided with an absorbent laminate. As a disposable diaper, for example, an absorbent main body in which an absorbent laminate is disposed between a top sheet and a back sheet on the skin side surface of a pants member including a front abdomen, a back part, and a crotch part located between them May be provided. At this time, a substantially rectangular shape or the like is shown as the shape of the absorbent main body. Moreover, as a disposable diaper, the laminated body by which the absorptive laminated body was distribute | arranged between the top sheet | seat and the back sheet | seat may form a front part, a back part, and a crotch part located among these. In addition, a front part corresponds to the part which contacts a wearer's belly side when wearing a disposable diaper, and a back part corresponds to the part which contacts a wearer's back side when wearing a disposable diaper. A crotch part is located between a front part and a back part, and is corresponded to the part which hits a wearer's crotch.

  When the absorbent article is a disposable diaper, the disposable diaper is an open type (tape type) disposable in which a pair of fastening members are provided on the left and right ends of the back portion, and formed into a pants shape when worn by the fastening members. It may be a diaper or a pants-type disposable diaper in which a waist opening and a pair of leg openings are formed.

  The top sheet is a sheet located on the wearer side when the absorbent article is worn, and is preferably liquid permeable. As the top sheet, for example, a nonwoven fabric formed from hydrophilic fibers such as cellulose, rayon, and cotton, and a hydrophobic property such as polyolefin (eg, polypropylene, polyethylene), polyester (eg, PET), polyamide (eg, nylon), etc. A non-woven fabric formed from fibers, in which the surface of hydrophobic fibers is hydrophilized with a surfactant, can be used. Further, as the top sheet, a woven fabric, a knitted fabric, a plastic film in which holes are formed, or the like may be used.

  The back sheet is a sheet located on the side opposite to the wearer when the absorbent article is worn, that is, on the outside, and is preferably liquid-impermeable. As the back sheet, a non-woven fabric formed from hydrophobic fibers such as polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), polyamide (for example, nylon), a plastic film, or the like can be used. Moreover, you may use the laminated body of a nonwoven fabric and a plastic film. In the present invention, the liquid impermeability includes the meaning of water repellency.

  The pant member may be liquid permeable or liquid impermeable, and a sheet material usable for a top sheet or a back sheet can be used. The pant member is preferably formed by laminating the outer sheet on the inner sheet, and more preferably formed by laminating the liquid-impermeable outer sheet on the hydrophilic inner sheet.

  When using a nonwoven fabric as each sheet material demonstrated above, it is preferable to use a spunbond nonwoven fabric, an air through nonwoven fabric, a point bond nonwoven fabric, a melt blown nonwoven fabric, an airlaid nonwoven fabric, an SMS nonwoven fabric, etc. as a nonwoven fabric.

  The absorbent article is preferably provided with rising flaps on both sides in the width direction. By providing the rising flap, side leakage of urine and the like is prevented. The rising flaps are preferably provided on both sides of the top sheet in the width direction, so that urine excreted from the wearer penetrates the top sheet without forming a liquid pool between the rising flaps. It becomes easy to be quickly absorbed by the absorbent laminate.

  The rising flap is formed, for example, by joining side sheets extending in the front-rear direction on both sides in the width direction of the top sheet and providing an elastic member inward in the width direction of the side sheet. By providing the side sheet and the elastic member in this manner, the inner side in the width direction of the side sheet rises toward the wearer's skin due to the contraction force of the elastic member, and a rising flap is formed. The rising flap or the side sheet is preferably composed of a liquid-impermeable plastic film, a liquid-impermeable nonwoven fabric, or the like.

  As the elastic member provided on the rising flap, an elastic stretchable material used for absorbent articles such as ordinary disposable diapers such as polyurethane yarn, polyurethane film, and natural rubber can be used. The elastic member is preferably fixed in a stretched state with a hot melt adhesive. For example, polyurethane yarn having a fineness of 40 to 1,240 dtex is stretched and arranged at a magnification of 1.1 to 5.0 times and fixed. As the joining means, a rubber-based hot melt adhesive is preferably used. The magnification is 1.0 in the non-expanded state.

  The absorbent laminate is disposed between the top sheet and the back sheet, and absorbs and holds urine or the like excreted from the wearer and permeated through the top sheet. An absorptive layered product has the 1st absorber and the 2nd absorber from the top sheet side. That is, in the absorbent laminate, the first absorber is disposed on the upper side of the second absorber. The first absorbent body is preferably disposed on the uppermost side of the absorbent laminate, and the first absorbent body is provided adjacent to the second absorbent body. Note that another absorber (that is, a third absorber) may be provided below the second absorber.

  The first absorbent body includes a plurality of layers of sheet members, and is configured to have a water absorbent resin between the sheet members and have no pulp fibers. On the other hand, a 2nd absorber contains a water absorbing resin and a pulp fiber.

  The first absorbent body is provided with sheet members on the upper side and the lower side of the water-absorbent resin, so to speak, it has an upper sheet member and a lower sheet member. The upper sheet member and the lower sheet member may be composed of separate sheet members, and one sheet member is folded, and the folded one side is used as the upper sheet member and the other side is used as the lower sheet member. Also good.

  The sheet member provided in the first absorbent body is liquid permeable, for example, a nonwoven fabric formed from hydrophilic fibers such as cellulose, rayon, and cotton, polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET). A non-woven fabric formed from hydrophobic fibers such as polyamide (for example, nylon), the surface of the hydrophobic fibers being hydrophilized with a surfactant can be used. Further, a woven fabric, a knitted fabric, a perforated plastic film or the like may be used as the sheet member. Preferably, a non-woven sheet member (non-woven sheet) is used as the sheet member.

  In the first absorbent body, the water absorbent resin is disposed between the upper sheet member and the lower sheet member, but the pulp fiber is not disposed between these sheet members. In addition, in the 1st absorber, presence of the pulp fiber mixed unavoidable on manufacture is accept | permitted. Since a 1st absorber is comprised so that it may have a water absorbing resin between a sheet | seat member, and it may not have a pulp fiber, it can be formed thin, having a high absorption capacity.

  Examples of water-absorbing resins include polyacrylic acid-based water-absorbing resins such as sodium polyacrylate; starch-acrylic graft copolymers, starch-acrylic acid graft copolymers, starch-acrylamide graft copolymers, and other starch-based water-absorbing resins. Water-absorbing resin: Polyvinyl alcohol-based water-absorbing resin such as crosslinked polyvinyl alcohol can be used. As the water-absorbing resin, it is preferable to use a polyacrylic acid-based water-absorbing resin such as sodium polyacrylate because it has a high liquid absorption.

  A 2nd absorber has a molded object containing a water absorbing resin and a pulp fiber. As the water absorbent resin contained in the second absorbent body, the water absorbent resin described above can be used. The water-absorbing resin disposed in the first absorber and the water-absorbing resin disposed in the second absorber may be the same or different, but as described later, the water absorbing resin disposed in the first absorber. It is preferable that the water-soluble resin has a higher water absorption rate than the water-absorbing resin disposed in the second absorbent body. The 2nd absorber contains water absorbing resin, and the holding | maintenance capability, such as urine, is improved. As the pulp fiber contained in the second absorber, defibrated pulp fiber is preferably used, and the defibrated pulp fiber is preferably used as a fiber mass. By containing pulp fibers, the second absorbent achieves rapid absorption of urine and the like, and diffusibility of urine and the like in the second absorbent is enhanced.

  The molded body only needs to include a water absorbent resin and pulp fibers and have a predetermined shape, and the molded body may be covered with a covering sheet such as a paper sheet (for example, tissue paper) or a liquid-permeable nonwoven sheet. Good. In the molded product, the water-absorbent resin and the pulp fiber may be mixed uniformly, or may be mixed non-uniformly, and the water-absorbent resin may be dispersed on the pulp fiber.

  The content of the water absorbent resin in the second absorber is not particularly limited, but is preferably 5% by mass or more, more preferably 10% by mass or more, and preferably 40% by mass or less, more preferably 30% by mass or less. When the content of the water absorbent resin is 5% by mass or more, the retention capacity of the second absorbent body such as urine is increased, and when the content of the water absorbent resin is 40% by mass or less, urine etc. is contained in the second absorbent body. It becomes easy to be absorbed quickly.

The basis weight of the second absorber is preferably 90 g / m ² or more, more preferably 100 g / m ² or more, preferably 150 g / m ² or less, and more preferably 140 g / m ² or less. If the range having a basis weight of 90g / m ² ~150g / m ² of the second absorbent body, not too thick thickness of the second absorber, the second absorber having excellent absorption properties such as urine is likely to give .

  The absorbent laminate has an opening in which the first absorbent body extends in the front-rear direction, and the second absorbent body has a molded body containing a water-absorbent resin and pulp fibers facing the opening of the first absorbent body. It has a groove or opening extending in the direction. In the present invention, the “opening” is provided penetrating in the vertical direction, while the “groove” means a depression formed on the surface and is defined as having a bottom surface. In addition, the molded body of the second absorbent body is provided with a groove or an opening facing the opening of the first absorbent body. The groove or the opening is formed on the upper surface of the molded body (the surface on the side facing the first absorbent body). ) May overlap with the opening of the first absorber. For example, the groove or opening of the molded body may be covered with a covering sheet. The opening provided in the first absorber and the groove or opening provided in the second absorber may be provided in the entire front-rear direction of the absorber, or may be provided in a part of the front-rear direction of the absorber. . For example, when the opening provided in the first absorbent body is provided over the entire length of the first absorbent body, the first absorbent body is divided and provided in the width direction.

  Since the absorbent article of the present invention is composed of the absorbent laminate as described above, the absorbent article has excellent diffusibility in the front-rear direction such as urine and absorbability. That is, in the absorbent laminate, a diffusion path such as urine is formed on the upper surface of the absorbent laminate by the opening of the first absorber and the groove or opening of the second absorber, so that urine etc. (2 absorber) as a whole is easily absorbed. In that case, since the 2nd absorber has a pulp fiber with a water-absorbent resin, the 2nd absorber can absorb and hold urine etc. promptly with a pulp fiber. Therefore, even if urine or the like is temporarily excreted in a large amount, the groove or the opening is provided in the molded body of the second opening so as to face the opening of the first absorber, so that the urine or the like is grooved in the second absorber. Or it diffuses in the front-back direction at the opening, so that urine and the like are quickly absorbed. Moreover, even when the absorbent laminate is pressed by the wearer's buttocks in the sitting position or the supine position, the second absorbent body so that the opening of the first absorbent body overlaps the groove or opening of the second absorbent body. Since the 1st absorber is provided on top, it becomes difficult to crush the slot or opening of the 2nd absorber. Or it becomes easy to maintain the diffusion path formed in the upper surface of an absorptive layered product. Therefore, the absorbent article of the present invention is excellent in diffusibility and absorbability of urine and the like even in a sitting position or a supine position.

  Furthermore, the absorbent article of the present invention absorbs urine and the like on the upper surface of the absorbent laminate even though the absorbent laminate is thin when the absorbent article is not used. A high diffusion path can be formed by the opening of the first absorber and the groove or opening of the second absorber. Since the first absorbent body is configured so as to have a water absorbent resin between the sheet members and not to have pulp fibers, when the first absorbent body absorbs urine or the like, the water absorbent resin swells, 1 It becomes easy to swell 1 absorber in the up-down direction of an absorbent article. As a result, the height of the diffusion path formed on the upper surface of the absorbent laminate is increased, and the absorbent laminate can be easily diffused in the front-rear direction without overflowing urine or the like from the diffusion path. For example, when the absorbent laminate receives urine etc. excreted after the second time, the urine etc. may be diffused in the front-rear direction because the second absorber has already absorbed urine etc. in the vicinity of the urine portion. preferable. In this regard, in the absorbent article of the present invention, the first absorbent body absorbs urine and the like in the vicinity of the urination portion and swells in the vertical direction, so that a higher diffusion path is easily formed on the upper surface of the absorbent laminate. That is, in the absorbent laminate, the opening of the first absorbent body is easily formed at a location where the second absorbent body absorbs urine and the like, and as a result, the urine excreted after the second time is absorbed. It becomes easy to be transferred or diffused to the part away from the vicinity of the urination part through the diffusion path formed on the upper surface of the porous laminate. Therefore, the entire absorbent laminate is likely to contribute to absorption of urine and the like, and urine and the like are easily absorbed into the absorbent laminate.

  It is preferable that the opening provided in the first absorbent body is provided so as to face the vicinity of the wearer's urination portion. If the opening of the first absorbent body is provided so as to face the vicinity of the urination part of the wearer, the urine excreted from the wearer can easily diffuse the absorbent laminate in the front-rear direction, and the urine etc. is absorbed into the absorbent laminate. It is easily absorbed by the body. For example, the opening of the first absorbent body is in a range of at least 30% to 60% (more preferably 25%) when the front end is 0% and the rear end is 100% relative to the longitudinal direction of the first absorbent body. % To 70%). The opening of the first absorber is also preferably provided so as to include the center line in the width direction of the first absorber (that is, the center line extending in the front-rear direction), and is preferably provided at the center in the width direction. Moreover, it is preferable that the first absorber is provided with only one opening.

  Similarly, the groove or opening provided in the second absorbent body is preferably provided so as to face the vicinity of the urination part of the wearer. For example, the groove or opening of the second absorber is at least 30% to 60% (more preferably) when the front end is 0% and the rear end is 100% relative to the longitudinal direction of the second absorber. Is preferably in the range of 25% to 70%. The groove or opening of the second absorber is preferably provided so as to include the center line in the width direction of the second absorber (that is, the center line extending in the front-rear direction), and more preferably provided in the center in the width direction. . Further, it is preferable that the second absorber is provided with only one groove or opening.

  The shape of the opening of the first absorber and the groove or opening of the second absorber is not particularly limited as long as it extends in the front-rear direction. A long shape is preferred. Examples of the shape of the opening or the groove include a rectangle, a rectangle with rounded corners, an ellipse, a polygon, an hourglass, and a dumbbell.

  The opening of the first absorber is preferably formed longer in the front-rear direction than the groove or opening of the second absorber. Specifically, it is preferable that the opening of the first absorber extends outward in the front-rear direction than the groove or opening of the second absorber. If the first absorbent body and the second absorbent body are thus formed, urine and the like are easily guided smoothly to the groove or opening of the second absorbent body, and urine and the like are suitable in the front-rear direction of the absorbent laminate. It becomes easy to diffuse.

  The opening provided in the first absorbent body is preferably formed, for example, over the entire length of the first absorbent body in the front-rear direction, and the first absorbent body is preferably divided in the width direction. In this case, the first absorbent body is composed of a left first absorbent body and a right first absorbent body, the left first absorbent body and the right first absorbent body are spaced apart in the width direction, and the first absorbent body The opening is formed between the left first absorber and the right first absorber. If the first absorbent body is formed in this way, the diffusibility of urine and the like in the absorbent laminate in the front-rear direction is increased, and in particular, the absorbability at the front-rear direction end of the second absorbent body is easily utilized effectively. Become.

  The opening provided in the first absorber may be provided only in a part of the first absorber in the front-rear direction. In this case, it is preferable that both ends of the opening in the front-rear direction are provided so as to be located inward in the front-rear direction from the front end and the rear end of the first absorber. Thus, if the 1st absorber is formed, it will become difficult to leak urine etc. in the front-back direction of an absorptive layered product. In addition, when the opening of the first absorbent body is provided only in a part of the first absorbent body in the front-rear direction, the opening is a sealing portion which will be described later in order to prevent the water absorbent resin from dropping from the first absorbent body. It is preferable to be formed.

  It is preferable that the groove | channel or opening provided in a 2nd absorber is provided only in a part of the front-back direction of a 2nd absorber. Specifically, it is preferably provided only in a part in the front-rear direction of the molded body included in the second absorbent body. In this case, it is preferable that both ends of the groove or the opening in the front-rear direction are provided so as to be located inward in the front-rear direction from the front end and the rear end of the molded body of the second absorbent body. Thus, if a groove | channel or opening is provided in a 2nd absorber, urine etc. will become difficult to leak in the front-back direction of an absorptive laminate. For example, the groove or opening of the second absorber has a front end of 10% when the front end is 0% and the rear end is 100% relative to the longitudinal direction of the molded body of the second absorber. % To 30% (more preferably 15% to 25%) and the rear edge of the groove or opening is 60% to 90% (more preferably 70% to 85%) It is preferable.

  It is preferable that a groove is formed in the second absorbent body. By providing a groove instead of an opening in the molded body of the second absorbent body, leakage from the backsheet side of the absorbent article is less likely to occur. In addition, urine and the like are easily absorbed by the second absorber. Furthermore, urine and the like are easily absorbed by the first absorber through the second absorber, and the first absorber swells in the vertical direction, thereby forming a high diffusion path on the upper surface of the absorbent laminate. It becomes easy to be done.

  When a groove is formed in the molded body of the second absorbent body, the molded body has an upper molded body provided on the top sheet side and a lower molded body provided on the back sheet side, and the upper molded body is front and rear. A groove extending in the front-rear direction may be formed in the molded body by providing an opening extending in the direction and providing the lower molded body overlapping the opening of the upper molded body. In this case, the lower molded body is arranged below the upper molded body so as to completely cover the opening of the upper molded body. By configuring the molded body in this way, it is possible to easily form grooves in the molded body for manufacturing.

  The opening provided in the first absorber is preferably formed wider than the groove or opening provided in the second absorber. If the first absorbent body and the second absorbent body are formed in this way, urine excreted from the wearer in the diffusion path formed by the opening of the first absorbent body and the groove or opening of the second absorbent body, etc. Can be guided smoothly, and urine and the like can be easily diffused in the front-rear direction of the absorbent laminate.

  The width (length in the width direction) of the groove or opening of the second absorber is, for example, preferably 8 mm or more, more preferably 10 mm or more, and preferably 30 mm or less, more preferably 25 mm or less. If the width of the groove or opening of the second absorber is 8 mm or more, the diffusibility of urine or the like in the front-rear direction is enhanced, and if the width of the groove or opening of the second absorber is 30 mm or less, the second absorption is achieved. The body's absorption capacity increases.

  The width (length in the width direction) of the opening of the first absorber is, for example, preferably 2 mm or more, more preferably 4 mm or more, and 20 mm or less wider than the width of the groove or opening of the second absorber. It is preferable that the width is 16 mm or less. If the opening width of the first absorbent body is within such a range, the first absorbent body absorbs urine and the like and swells in the vertical direction, so that a diffusion path is easily formed on the upper surface of the absorbent laminate. Become. When the first absorber is composed of the left first absorber and the right first absorber, the left first absorber and the right first absorber extend in the width direction from the groove or opening provided in the second absorber. It is preferable that they are spaced apart by 1 mm or more, more preferably they are spaced apart by 2 mm or more, preferably are spaced apart by 10 mm or less, and are spaced apart by 8 mm or less. It is more preferable.

  The first absorber is preferably formed narrower than the second absorber. That is, it is preferable that the edge of the 1st absorber in the width direction is located inward of the width direction of the 2nd absorber. As described above, when the first absorber is composed of the left first absorber and the right first absorber, the outer ends in the width direction of the left first absorber and the right first absorber. It is preferable that the edge is located inward in the width direction with respect to the edge in the width direction of the second absorbent body. If the first absorbent body is provided in this way, the entire first absorbent body is supported by the second absorbent body. When the first absorbent body absorbs urine or the like, the first absorbent body is more Easily swells high. Moreover, even if urine or the like overflows outward in the width direction of the first absorber, it is easily absorbed by the second absorber, and the absorption capacity of the second absorber is easily utilized effectively.

  When the rising flap is provided in the absorbent article, the first absorbent body is preferably provided inward in the width direction with respect to the rising flap. That is, it is preferable that rising flaps extending in the front-rear direction are provided on both sides of the top sheet in the width direction, and the first absorbent body is provided inward in the width direction with respect to the base portion from which the rising flaps rise. In this case, the edge of the 1st absorber in the width direction will be located inward in the width direction rather than the base part of the rising flap. If the first absorber is provided in this way, even if a large amount of urine or the like is excreted on the first absorber or the urine or the like overflows from the diffusion path of the absorbent laminate to the first absorber. The urine or the like passes through the gap between the first absorbent body and the base of the rising flap and moves to the second absorbent body, and is suitably absorbed by the second absorbent body. As a result, side leakage such as urine is less likely to occur. In this case, the molded body of the second absorbent body is preferably provided so as to extend outward in the width direction from the base portion of the rising flap.

  The length in the front-rear direction of the first absorber and the second absorber is not particularly limited. The first absorbent body and the second absorbent body may have the same length in the front-rear direction, and the first absorbent body may be formed longer in the front-rear direction than the second absorbent body. May be longer in the front-rear direction than the first absorber. The first absorbent body preferably extends outward in the front-rear direction at least from the groove or opening of the second absorbent body, so that a diffusion path is sufficient in the front-rear direction on the upper surface of the absorbent laminate. It becomes easy to be formed with a long length.

  It is preferable that the 1st absorber and the 2nd absorber are mutually joined by the adhesive bond layer formed between these. The adhesive layer is preferably formed of, for example, a rubber adhesive or a styrene elastomer described later. If the first absorbent body and the second absorbent body are bonded to each other with an adhesive, it is easy to maintain a state where the opening of the first absorbent body and the groove or opening of the second absorbent body overlap.

  The first absorbent body preferably has a sealing portion formed by joining sheet members together in order to swell higher in the vertical direction when absorbing urine or the like. The sealing portion is formed by joining sheet members with an adhesive, heat sealing (thermal fusion), or ultrasonic bonding. A sealing part is prescribed | regulated as a part where sheet members are joined, and presence of the water absorbing resin in a sealing part is accept | permitted.

  The first absorbent body is preferably formed with a non-sealing portion where the sheet members are not joined to both sides of the opening and a sealing portion on both sides of the non-sealing portion. It is preferable that a water absorbing resin is arranged to form an absorption region. In this case, at least two sealing portions extending in the front-rear direction are formed on one side and the other side across the opening of the first absorber, and an absorption region is formed between these sealing portions. Become. Thus, if an absorption region is formed on both sides of the opening of the first absorbent body, the first absorbent body absorbs urine and the like so that the absorbent region expands in the vertical direction, and the upper surface of the absorbent laminate Therefore, the diffusion path is easily formed higher.

  When the first absorber is composed of the left first absorber and the right first absorber, at least sealing portions are provided on both sides in the width direction of the left first absorber and on both sides in the width direction of the right first absorber. Preferably, an absorption region is formed between the sealing portions. By forming the left side first absorber and the right side first absorber in this way, the left side first absorber and the right side first absorber absorb urine and the like, so that the left side first absorber and the right side first absorber. The absorber swells in the vertical direction, and the diffusion path is more easily formed on the upper surface of the absorbent laminate.

  The sealing portion is preferably provided so as to extend over the entire length of the first absorbent body in the front-rear direction. Moreover, it is preferable that an absorption area | region is provided so that it may extend over the full length of the front-back direction of a 1st absorber. Thus, if a sealing part and an absorption region are provided, it will become easy to form a diffusion path over the whole front-back direction of the 1st absorber.

  Three or more sealing portions may be provided side by side in the width direction on one side and the other side across the opening of the first absorber. In this case, the first absorber is provided with a sealing portion so as to divide the absorption region. As a result, urine or the like diffuses on the first absorber in the front-rear direction through the sealing portion. As a result, urine and the like are quickly absorbed by the first absorber. In addition, more of the water-absorbing resin disposed in the first absorbent body can easily contribute to absorption of urine and the like, and the first absorbent body's absorbability can be enhanced.

  It is preferable that the sealing portion maintains the bonding between the sheet members even when the first absorber absorbs water. By forming the sealing portion in this manner, the absorption region swells in the vertical direction when the first absorber absorbs urine and the like, and the diffusion path is more easily formed on the upper surface of the absorbent laminate. . In order to make it easy to maintain the bonding between the sheet members at the sealing portion, the sheet members are made of rubber adhesive (for example, natural rubber, butyl rubber, polyisoprene, etc.) or styrene elastomer (for example, styrene- Isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), styrene-ethylene-butadiene-styrene block copolymer (SEBS), styrene-ethylene-propylene-styrene block copolymer (SEPS) or the like), heat sealing (thermal fusion), or ultrasonic bonding is preferable.

  In the first absorbent body, the water absorbent resin is preferably fixed to the sheet member with an adhesive. That is, it is preferable that an adhesive is applied to the sheet member to provide an adhesive layer, and the water absorbent resin is fixed to the sheet member with the adhesive layer. The adhesive layer may be provided on at least one of the upper sheet member and the lower sheet member, but preferably, the adhesive layer is provided on both the upper sheet member and the lower sheet member. It is sufficient that at least a part of the water absorbent resin is fixed to the adhesive layer. For example, the water absorbent resin in contact with the adhesive layer may be fixed to the adhesive layer. If the water absorbent resin is fixed to the sheet member by the adhesive layer, the water absorbent resin becomes difficult to move between the sheet members, and the first absorbent body absorbs urine or the like, thereby allowing the upper surface of the absorbent laminate to be absorbed. A diffusion path is easily formed.

  It is preferable that the adhesive layer does not inhibit water absorption or swelling by the water absorbent resin while fixing the water absorbent resin. From this point, the adhesive layer is preferably provided in an intermittent pattern. For example, the adhesive layer is preferably formed by applying the adhesive in a net shape, a stripe shape, or a dotted shape. When the adhesive layer is formed in a net shape, the adhesive may be applied by a curtain spray method, a spiral coating method, an omega coating method, or the like.

  As the adhesive that forms the adhesive layer, an adhesive that can be used to form the sealing portion as described above can be used. Moreover, the sealing part may be formed by the adhesive layer. In this case, the sheet members are joined together by the adhesive layer, thereby forming a sealing portion.

  The first absorbent body preferably absorbs urine and the like so that a high diffusion path is quickly formed on the upper surface of the absorbent laminate. In this respect, the water-absorbing resin disposed in the first absorbent body preferably has a water absorption rate by a vortex method of 20 seconds or less, more preferably 15 seconds or less, and even more preferably 10 seconds or less. If the water absorbent resin having a high water absorption rate is arranged in the first absorbent body in this way, the urine etc. come into contact with the first absorbent body, so that the water absorbent resin of the first absorbent body swells quickly, A high diffusion path is quickly formed on the upper surface of the absorbent laminate. As a result, in the absorbent article, a high diffusion path is easily formed in the absorbent laminate from the first excretion, and urine and the like can be diffused well in the front-rear direction of the absorbent laminate. The lower limit of the water absorption rate of the water absorbent resin arranged in the first absorber is not particularly limited, but the water absorption rate by the vortex method of the water absorbent resin arranged in the first absorber may be, for example, 1 second or more. More preferably 2 seconds or more.

  On the other hand, the water absorbent resin disposed on the second absorbent body (specifically, the water absorbent resin disposed on the molded body of the second absorbent body) absorbs more water than the water absorbent resin disposed on the first absorbent body. It is preferable that the speed is low. For example, the water-absorbing resin disposed in the second absorber preferably has a water absorption rate by vortex method of 40 seconds or more, more preferably 60 seconds or more, more preferably 90 seconds or more, and preferably 300 seconds or less, 240 seconds. The following is more preferable. If the water absorbent resin arranged in the second absorbent body has such a water absorption rate, the diffusibility of urine and the like in the second absorbent body is enhanced, and the absorbent capacity of the second absorbent body is utilized over a wide range. Become so.

  The water absorption rate of the water absorbent resin by the vortex method is measured according to JIS K 7224 (1996 edition). Specifically, the water absorption speed is obtained as follows. A 100 mL glass beaker with 50 mL of physiological saline (0.9 wt% sodium chloride water) and a magnetic stirrer chip (center diameter 8 mm, both ends diameter 7 mm, length 30 mm, surface coated with fluororesin ) And the beaker is placed on a magnetic stirrer (HPS-100 manufactured by ASONE). The rotational speed of the magnetic stirrer is adjusted to 600 ± 60 rpm, and the physiological saline is stirred. Add 2.0 g of the water-absorbing resin into the liquid at the center of the vortex of the saline solution being stirred, and start counting when the water-absorbing resin has been introduced into the beaker. Stop the timing at the moment when it breaks (when the vortex disappears and the liquid surface becomes flat), and record the time (in seconds) as the water absorption rate. The measurement is performed 5 times (n = 5), the values at each of the upper and lower points are deleted, and the average value of the remaining three points is taken as the measured value. These measurements are performed at 23 ± 2 ° C. and a relative humidity of 50 ± 5%, and are measured after storing the water absorbent resin in the same environment for 24 hours or more before the measurement.

  The water-absorbing resin is removed from the absorbent article as follows. When taking out water absorbing resin from a 1st absorber, the water absorbing resin distribute | arranged between sheet members is taken out by isolate | separating the sheet member which has arranged water absorbing resin in between. When taking out water absorbing resin from a 2nd absorber, water absorbing resin is taken out by isolate | separating the mixture of water absorbing resin and pulp fiber into water absorbing resin and pulp fiber using a sieve.

  As a water-absorbing resin having a water absorption rate of 20 seconds or less by vortex method, for example, Aqua Keep (registered trademark) 10SH-PF manufactured by Sumitomo Seika Co., Ltd. can be used. As the water-absorbing resin having a water absorption rate of 40 seconds or more by the vortex method, a water-absorbing resin generally used for absorbent articles can be used.

When a water absorbent resin having a water absorption speed of 20 seconds or less by the vortex method is disposed on the first absorbent body, amount, 50 g / ^{m 2} or more preferably, 100 g / ^{m 2} or more, and also preferably from 200 g / ^{m 2} or less, more preferably 180 g / ^{m 2} or less. If the water absorption resin having a water absorption rate of 20 seconds or less by the vortex method is arranged in the absorption region in an amount of 50 g / m ² or more, the first absorbent body absorbs urine and the like, whereby the upper surface of the absorbent laminate Therefore, a high diffusion path is easily formed. On the other hand, even if the amount of water-absorbing resin with a water absorption rate of 20 seconds or less by the vortex method is more than 200 g / m ² , the water-absorbing resin arranged in the absorption region contributes sufficiently to absorption of urine and the like. The effect of increasing the height of the diffusion path is saturated. Therefore, it is preferable that a water-absorbing resin having a water absorption rate of 20 seconds or less by the vortex method is arranged in the absorption region in an amount of 200 g / m ² or less.

  In order for the first absorbent body to absorb urine and the like to form a higher diffusion path, it is preferable that two or more first absorbent bodies are provided overlapping each other. By providing two or more first absorbent bodies, more parts of the water absorbent resin can absorb urine or the like than when the same amount of the water absorbent resin is disposed on one first absorbent body. As a result, it becomes easier to form a diffusion path having a higher height on the upper surface of the absorbent laminate.

  The absorbent laminate may be provided with an absorbent body (third absorbent body) other than the first absorbent body and the second absorbent body. However, in this case, it is preferable that the third absorber is provided below the second absorber. The third absorbent body may be, for example, an absorbent body having a water absorbent resin between sheet members so as not to have pulp fibers, and having a molded body containing a water absorbent resin and pulp fibers. It may be.

  Next, the structural example of the absorbent article of this invention is demonstrated with reference to drawings. First, an absorptive laminated body is demonstrated with reference to FIGS. FIG. 1 shows an example of an absorbent laminate, and shows a plan view of the absorbent laminate as viewed from the top sheet side. FIG. 2 is a cross-sectional view taken along the line II-II of the absorbent laminate shown in FIG. FIG. 3 shows another example of the absorbent laminate, and shows a plan view of the absorbent laminate as seen from the top sheet side. 4 represents a cross-sectional view of the absorbent laminate shown in FIG. 3 taken along the line IV-IV. In the drawings, arrows x, y, and z represent the width direction, the front-rear direction, and the vertical (thickness) direction of the absorbent article, respectively. 1 and 3, the upper side of the figure corresponds to the front side of the absorbent article, and the lower side of the figure corresponds to the rear side of the absorbent article. The present invention is not limited to the embodiments shown in the drawings.

  The absorbent laminate 10 (10A) shown in FIGS. 1 and 2 will be described. The absorptive laminated body 10 has the 1st absorber 11 and the 2nd absorber 21 from the top sheet side. The first absorbent body 11 includes a plurality of sheet members 12, is configured so as to have a water absorbent resin 13 between the sheet members 12 and no pulp fibers, and has an opening 18 extending in the front-rear direction y. The 2nd absorber 21 has the molded object 22 containing a water absorbing resin and a pulp fiber, and the molded object 22 has the groove | channel 25 extended in the front-back direction y facing the opening 18 of the 1st absorber 11. FIG. In the absorbent laminate 10, the groove 25 is formed in the molded body 22 of the second absorbent body 21, but an opening penetrating the molded body 22 in the vertical direction z may be provided instead of the groove.

  In the absorbent laminate 10, a diffusion path such as urine is formed on the upper surface of the absorbent laminate 10 by the opening 18 of the first absorber 11 and the groove 25 of the second absorber. As a result, in the absorbent laminate 10, urine or the like easily diffuses in the front-rear direction y through the diffusion path, and in particular, the absorption capacity of the second absorber 21 is enhanced. In addition, since the first absorbent body 11 is provided on the second absorbent body 21 so that the opening 18 of the first absorbent body 11 overlaps the groove 25 of the second absorbent body 21, the groove of the second absorbent body 21. 25 becomes difficult to be crushed and the diffusion path formed on the upper surface of the absorbent laminate 10 is easily maintained. Further, the absorbent laminate 10 is formed such that the first absorbent body 11 has the water absorbent resin 13 between the sheet members 12 and does not have pulp fibers. It will swell and the 1st absorber 11 will swell in the up-and-down direction z. As a result, a high diffusion path is formed on the upper surface of the absorbent laminate 10, and urine or the like easily diffuses in the front-rear direction y without overflowing from the diffusion path. Therefore, urine or the like is easily absorbed by the absorbent laminate 10 even in the second and subsequent excretion.

  In the first absorbent body 11, an adhesive is applied to the sheet member 12 to form an adhesive layer 14, and the water absorbent resin 13 is fixed to the sheet member 12 by the adhesive layer 14. In the first absorbent body 11, a sealing portion 15 is formed at a portion where the sheet members 12 are joined together, and a non-sealing portion 16 is formed at a portion where the sheet members 12 are not joined together. The sealing portion 15 is formed by joining the sheet members 12 to each other by the adhesive layer 14, and the water-absorbing resin 13 is disposed on the non-sealing portion 16 to form an absorption region 17. The absorption region 17 is provided on both sides of the opening 18 in the width direction x, and the sealing portions 15 are provided on both sides of the absorption region 17 in the width direction x. Thus, if the absorption region 17 and the sealing part 15 are formed in the 1st absorber 11, the 1st absorber 11 will swell in the up-down direction z by absorbing urine etc., and will be on the upper surface of the absorptive layered product 10. The diffusion path is more easily formed.

  As shown in FIG. 1, the absorption region 17 is preferably provided on both sides of the opening 18 substantially over the entire length in the front-rear direction y with respect to the first absorber 11. By providing the absorption region 17 in the first absorber 11 in this manner, urine and the like are suitably diffused in the front-rear direction y, and urine and the like are easily absorbed in a wide range of the second absorber 21. In FIG. 1, sealing portions 15 are formed on both sides of the opening 18 so as to divide the absorption region 17 in the width direction x. By providing the sealing portion 15 in this way, urine and the like easily diffuse in the front-rear direction y through the sealing portion 15 and the urine and the like are absorbed by the first absorber 11 over a wide range. It becomes easy to be done.

  When the first absorber 11 is formed integrally with the opening 18 as in the absorbent laminate 10A shown in FIGS. 1 and 2, the opening 18 is the sealing portion 15 of the first absorber 11. It is preferable to be provided. If the opening 18 is provided in this way, the absorption region 17 is likely to swell high in the vertical direction z when the first absorbent body 11 absorbs urine and the like.

  The opening 18 of the first absorber 11 is preferably formed wider than the groove 25 of the second absorber 21. If the first absorbent body 11 and the second absorbent body 21 are thus formed, the urine excreted from the wearer is easily guided smoothly into the diffusion path formed by the opening 18 and the groove 25, Urine or the like can easily diffuse the absorbent laminate 10 in the front-rear direction y.

  The first absorbent body 11 is preferably formed narrower than the second absorbent body 21. If the first absorbent body 11 is provided in this way, the first absorbent body 11 is easily supported by the second absorbent body 21, and when the first absorbent body 11 absorbs urine or the like, the first absorbent body. 11 is higher and it is easy to swell in the vertical direction z.

  The water absorbent resin 13 disposed in the first absorbent body 11 preferably has a water absorption speed of 20 seconds or less by the vortex method. If the first absorbent body 11 is provided with such a water absorbent resin having a high water absorption rate, the first absorbent body 11 comes into contact with urine or the like, so that the water absorbent resin 13 of the first absorbent body 11 quickly swells. Thus, a high diffusion path is quickly formed on the upper surface of the absorbent laminate 10. On the other hand, the water-absorbing resin disposed in the second absorbent body 21 preferably has a water absorption speed of 40 seconds or more by the vortex method from the viewpoint of improving the diffusibility in the second absorbent body 21.

  Next, the absorbent laminate 10 (10B) shown in FIGS. 3 and 4 will be described. In the description of the absorbent laminate 10B, the description of the portion overlapping with the above-described absorbent laminate 10A is omitted.

  In the absorbent laminate 10B, the opening 18 provided in the first absorbent body 11 is formed over the entire length in the front-rear direction y of the first absorbent body 11, and the first absorbent body 11 is divided in the width direction x. That is, the first absorber 11 is composed of a left first absorber 11A and a right first absorber 11B, and an opening 18 is formed between the left first absorber 11A and the right first absorber 11B. Thus, if the 1st absorber 11 is formed, the diffusibility to the front-back direction y of the urine etc. in the absorptive laminated body 11 will increase, and the absorptivity in the edge part of the front-back direction y of the 2nd absorber 21 will increase. It becomes easy to be effectively used.

  In the left first absorbent body 11A and the right first absorbent body 11B, sealing portions 15 are formed at both ends in the width direction x, and a water absorbent resin 13 is disposed in the non-sealing portion 16 to form an absorption region 17. Has been. By forming the left first absorbent body 11A and the right first absorbent body 11B in this way, when the left first absorbent body 11A and the right first absorbent body 11B absorb urine or the like, the respective absorbent bodies are in the vertical direction. It swells to z, and a diffusion path is more easily formed on the upper surface of the absorbent laminate 10.

  In the absorbent laminate 10B, the molded body 22 of the second absorbent body 21 is composed of an upper molded body 23 and a lower molded body 24, and an opening 26 extending in the front-rear direction y is provided in the upper molded body 23, so that the lower molded body is formed. By providing the body 24 so as to overlap with the opening 26 of the upper molded body 23, a groove 25 extending in the front-rear direction y is formed in the molded body 22. By configuring the molded body 22 in this way, the grooves 25 can be easily formed in the molded body 22.

  As shown in FIGS. 3 and 4, the upper molded body 23 is preferably formed longer in the front-rear direction y and the width direction x than the lower molded body 24. By forming the molded body 22 in this way, the ability to retain urine or the like in the vicinity of the groove 25 of the molded body 22 is increased, and the absorption capacity of the second absorbent body 21 is efficiently exhibited. Further, since the upper molded body 23 is formed longer in the front-rear direction y and the width direction x than the lower molded body 24, the wearer feels a sense of discomfort due to the difference in level between the upper molded body 23 and the lower molded body 24. It becomes difficult to remember and the feeling of wearing the absorbent article is improved.

  The structural example of the absorbent article of this invention is demonstrated with reference to FIG. 5 and FIG. 5 and 6 show an absorbent article provided with the absorbent laminate shown in FIG. FIG. 5: represents the top view which looked at the urine pad as an absorbent article from the top sheet side. 6 represents a VI-VI cross-sectional view of the absorbent article shown in FIG. In FIG. 5, the upper side of the figure corresponds to the front side of the absorbent article, and the lower side of the figure corresponds to the rear side of the absorbent article. The present invention is not limited to the embodiment shown in the drawings.

  The absorbent article 1 has a top sheet 2, a back sheet 3, and an absorbent laminate 10 provided therebetween. The top sheet 2 is disposed so as to face the wearer's skin, and allows excretion such as urine to pass through. The excrement that has passed through the top sheet 2 is accommodated by the absorbent laminate 10. The back sheet 3 prevents excrement from leaking outside.

  The absorptive laminated body 10 has the 1st absorber 11 and the 2nd absorber 21 from the top sheet 2 side. The first absorbent body 11 is provided with an opening 18 extending in the front-rear direction y, and the second absorbent body 21 is provided with a molded body 22 having a groove 25 extending in the front-rear direction y. The opening 18 and the groove 25 overlap each other. Is provided. The description regarding the absorbent laminate 10 is as described above.

  The absorbent article 1 is provided with rising flaps 5 extending in the front-rear direction y on both sides of the top sheet 2 in the width direction x. 5 and 6, the side sheet 4 extending in the front-rear direction y is joined to both sides in the width direction x of the top sheet 2, and the standing elasticity provided at the inner end of the side sheet 4 in the width direction x. The inner end of the side seat 4 rises toward the wearer's skin due to the contraction force of the member 7, thereby forming the rising flap 5. The rising flap 5 prevents lateral leakage of urine or the like in the width direction x. In addition, the rising flap 5 may be joined to the top sheet 2 at the inner surface of the end portion in the front-rear direction y, whereby the rising flap 5 can be easily raised.

  The rising flap 5 has a base portion 6 as a starting point for rising, and the first absorbent body 11 is preferably provided inward in the width direction x from the base portion 6 of the rising flap 5. If the first absorber 11 is provided in this way, even if a large amount of urine or the like is discharged and the urine or the like overflows from the first absorber 11, the urine or the like rises from the first absorber 11. 5 passes through the gap between the base 6 and the second absorbent body 21 and is suitably absorbed by the second absorbent body 21. As a result, side leakage such as urine is less likely to occur.

1: Absorbent article 2: Top sheet 3: Back sheet 5: Standing flap 6: Base 10: Absorbent laminate 11: First absorbent body, 11A: Left first absorbent body, 11B: Right first absorbent body 12: Sheet member 13: Water absorbent resin 18: Opening 21: Second absorber 22: Molded body 25: Groove (or opening)

Claims (9)

An absorbent article having a width direction and a front-rear direction, having a top sheet, a back sheet, and an absorbent laminate provided therebetween,
The absorbent laminate has a first absorbent body and a second absorbent body from the topsheet side,
The first absorbent body includes a plurality of sheet members, is configured to have a water-absorbent resin between the sheet members and no pulp fibers, and has an opening extending in the front-rear direction.
The second absorbent body has a molded body containing a water-absorbing resin and pulp fibers, and the molded body has a groove or an opening extending in the front-rear direction facing the opening of the first absorbent body. Absorbent article.   The absorbent article according to claim 1, wherein the water absorbent resin disposed in the first absorbent body has a water absorption rate of 20 seconds or less by a vortex method.   The absorbent article according to claim 2, wherein the water-absorbent resin disposed in the second absorbent body has a water absorption rate by a vortex method of 40 seconds or more.   The absorptive article according to any one of claims 1 to 3 in which said 1st absorber is formed narrower than said 2nd absorber.   The opening provided in the said 1st absorber is an absorbent article as described in any one of Claims 1-4 currently formed wider than the groove | channel or opening provided in a said 2nd absorber. The molded body has an upper molded body provided on the top sheet side and a lower molded body provided on the back sheet side,
An opening extending in the front-rear direction is provided in the upper molded body, and a groove extending in the front-rear direction is formed in the molded body by providing the lower molded body so as to overlap the opening of the upper molded body. The absorbent article as described in any one of 1-5.   The opening provided in the said 1st absorber is formed over the full length of the front-back direction of the said 1st absorber, and the said 1st absorber is divided | segmented into the width direction. Absorbent articles. On both sides of the top sheet in the width direction, rising flaps extending in the front-rear direction are provided,
The absorptive article according to any one of claims 1 to 7 with which said 1st absorber is provided in the inner part of the width direction rather than the base used as the starting point where said rise flap rises.   The absorbent article according to any one of claims 1 to 8, wherein two or more first absorbent bodies are provided so as to overlap each other.