JP2013042881A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article capable of improving fittability to user's crotch, irrespective of having an absorbent laminate in which a plurality of absorbent bodies having a water-absorbing resin between nonwoven fabric sheets and having no pulp fabric are superimposed.SOLUTION: The absorbent article 1 includes a top sheet 2, a back sheet 3 and an absorbent laminate 10 formed therebetween. The absorbent laminate 10 has an upper absorbent body 11, a first lower absorbent body 21 disposed on one side of a width direction x below the upper absorbent body 11, and a second lower absorbent body 31 disposed on the other side of the width direction x below the upper absorbent body 11. The upper absorbent body 11, the first lower absorbent body 21 and the second lower absorbent body 31 have water-absorbing resins 13, 23, 33 between the nonwoven fabric sheets 12, 22, 32 respectively, and have no pulp fabric.

Description

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

  DESCRIPTION OF RELATED ART Conventionally, the absorbent article which has an absorber (sheet-form absorber) which has a water absorbing resin between nonwoven fabric sheets and does not have a pulp fiber is known. For example, Patent Literature 1 discloses an absorbent article having an absorbent laminate in which a plurality of absorbent bodies each having a water-absorbent resin and having no pulp fiber are stacked between nonwoven fabric sheets.

JP 2004-313580 A

  The absorbent body having a water-absorbing resin between the nonwoven fabric sheets and having no pulp fibers does not have pulp fibers, so that it can be formed thin while securing the absorption capacity, but the flexibility tends to be insufficient. Tend. In particular, an absorbent laminate in which a plurality of absorbent bodies each having a water-absorbent resin and no pulp fibers are stacked between the nonwoven fabric sheets is difficult to bend and has poor fit to the wearer's crotch. There is a case.

  This invention is made | formed in view of the said situation, The objective is to have the absorptive laminated body in which the absorber which has a water absorbing resin between nonwoven fabric sheets and does not have a pulp fiber was piled up. Nevertheless, an object of the present invention is to provide an absorbent article that can improve the fit of the wearer into the crotch.

  The absorbent article of the present invention capable of solving the above problems is an absorbent article having a top sheet, a back sheet, and an absorbent laminate provided between the top sheet, the absorbent laminate, , Having a longitudinal direction and a width direction, an upper absorbent body, a first lower absorbent body disposed on one side of the width direction below the upper absorbent body, and a width direction below the upper absorbent body A second lower absorbent body disposed on the other side, and the upper absorbent body, the first lower absorbent body, and the second lower absorbent body each have a water absorbent resin between the nonwoven fabric sheets and pulp fibers. It has features where it does not have. In the absorbent article of the present invention, the upper absorbent body, the first lower absorbent body, and the second lower absorbent body each have a water absorbent resin between the nonwoven fabric sheets and have no pulp fibers. Since the first lower absorber and the second lower absorber are arranged side by side in the width direction on the lower side, it becomes easy to bend the absorbent laminate in the width direction, and the wearer of the absorbent article The fit to the crotch can be improved.

  The first lower absorber and the second lower absorber are spaced apart from each other in the width direction, and a lower absorber non-existing portion is formed between the first lower absorber and the second lower absorber. The upper absorbent body has a plurality of water-absorbing resin existing regions in which water-absorbing resins are arranged between the nonwoven fabric sheets and a water-absorbing resin non-existing region between adjacent water-absorbing resin existing regions. It is preferable that the nonwoven fabric sheets are joined to each other in the resin absence region, and the water absorbent resin absence region of the upper absorbent body extends in the longitudinal direction so as to overlap the lower absorbent absent portion. Further, the first lower absorber and the second lower absorber are arranged so as to contact each other, and a lower absorber contact portion where the first lower absorber and the second lower absorber are in contact with each other is formed. The absorbent body has a plurality of water-absorbing resin existing regions where water-absorbing resins are arranged between the nonwoven fabric sheets, and a water-absorbing resin non-existing region between adjacent water-absorbing resin existing regions. It is also preferable that the nonwoven fabric sheets are joined to each other in the presence region, and the water absorbent resin non-existence region of the upper absorbent body extends in the longitudinal direction so as to overlap the lower absorbent body contact portion. If the upper absorbent body extends in the longitudinal direction so that the water absorbent resin-free region of the upper absorbent body overlaps with the lower absorbent body non-existing portion or the lower absorbent body contact portion, the absorbent laminate can be easily folded in the width direction. Thus, the fit of the absorbent article to the crotch of the wearer can be enhanced.

  In the upper absorbent body, it is preferable that the nonwoven fabric sheets are heat-sealed in the water-absorbent resin-free region. If the nonwoven fabric sheet is heat-sealed in the region where the upper absorbent body is not present in the water absorbent resin, body fluid such as urine can easily diffuse on the upper absorbent body in the region where the water absorbent resin is absent. To be absorbed efficiently.

  Each of the first lower absorbent body and the second lower absorbent body has a water absorbent resin between a plurality of water absorbent resin existing areas in which a water absorbent resin is arranged and an adjacent water absorbent resin existing area between the nonwoven fabric sheets. The non-existing region, the nonwoven fabric sheets are joined in the water-absorbing resin non-existing region, and the upper absorbent body is a region of the water-absorbing resin non-existing region that overlaps the lower absorbent body non-existing portion or the lower absorbent body contact portion. Water-absorbing resin present area on both sides, and further on both sides thereof, a water-absorbing resin absent area that overlaps with the water-absorbing resin absent area of the first lower absorbent body, and the water absorbent resin absent of the second lower absorbent body It is preferable to have a water-absorptive resin absence region that overlaps the region. If the water absorbent resin absence region of the first lower absorbent body and the second lower absorbent body is provided so as to overlap the water absorbent resin absent region of the upper absorbent body, the water absorbent resin absence of the upper absorbent body The body fluid easily moves through the region to the water-absorbing resin-free region of the first lower absorbent body and the second lower absorbent body, and the body fluid is moved on the first lower absorbent body and the second lower absorbent body. It becomes suitable to diffuse. As a result, body fluid is efficiently absorbed by the first lower absorbent body and the second lower absorbent body.

  Each of the first lower absorbent body and the second lower absorbent body has a water absorbent resin between a plurality of water absorbent resin existing areas in which a water absorbent resin is arranged and an adjacent water absorbent resin existing area between the nonwoven fabric sheets. A non-existing region, the nonwoven fabric sheets are joined in the water-absorbing resin non-existing region, and the first lower absorbent body is folded back in the water-absorbing resin non-existing region extending in the longitudinal direction to form a first fold. The second lower absorbent body is folded back in the longitudinal direction in the absence of the water absorbent resin to form a second fold, and the first lower fold and the second fold are opposed to each other. It is preferable that the side absorber and the second lower absorber are arranged. If the first lower absorbent body and the second lower absorbent body are formed in this way, the absorption capacity of the absorbent laminate can be increased, and between the first lower absorbent body and the second lower absorbent body. Alternatively, a crease is formed at the boundary so that the absorbent laminate can be easily folded in the width direction.

  The first lower absorbent body and the second lower absorbent body are preferably formed by folding the upper absorbent body in the width direction. In this case, a 1st lower side absorber and a 2nd lower side absorber can be easily manufactured from an upper side absorber, and the manufacturing cost of an absorbent article can be restrained low.

  In the first lower absorbent body, the water absorbent resin non-existing regions provided via the water absorbent resin existing regions on both sides of the water absorbent resin non-existing region where the first fold is formed are arranged to overlap each other. (2) The lower absorbent body is arranged such that the water absorbent resin non-existing regions provided on both sides of the water absorbent resin non-existing region where the second fold is formed via the water absorbent resin existing region overlap each other. Is preferred. If the first lower absorbent body and the second lower absorbent body are thus formed, body fluid such as urine is efficiently absorbed by the first lower absorbent body and the second lower absorbent body. Become.

  In the absorbent article of the present invention, the upper absorbent body, the first lower absorbent body, and the second lower absorbent body each have a water absorbent resin between the nonwoven fabric sheets and have no pulp fibers. Since the first lower absorber and the second lower absorber are arranged side by side in the width direction on the lower side, it becomes easy to bend the absorbent laminate in the width direction, and the wearer of the absorbent article The fit to the crotch can be improved.

An example of sectional drawing of an absorptive layered product is expressed. The other example of sectional drawing of an absorptive laminated body is represented. The top view of the urine pad as one embodiment of the absorbent article of this invention is represented. FIG. 4 is a cross-sectional view of the urine pad shown in FIG. 3 taken along the line AA.

  The absorbent article of the present invention includes 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 shape of the absorbent article is not particularly limited. For example, when the absorbent article is a urine pad or a sanitary napkin, the shape of the absorbent article includes 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 disposable diaper may be an open-type disposable diaper that is provided with a pair of fastening members on the left and right sides and formed into a pants shape when worn by the fastening member, and a waist opening And a pair of legged disposable diapers in which a pair of leg openings are formed.

  The top sheet is a sheet positioned on the wearer side when the absorbent article is worn, and is preferably liquid permeable. The back sheet is a sheet located on the side opposite to the wearer, that is, the outer side when the absorbent article is worn, and is preferably liquid-impermeable.

  A top sheet and a back sheet are comprised from the laminated body of a nonwoven fabric, a woven fabric, a knitted fabric, a plastic film, a plastic film, and a nonwoven fabric etc., for example. As a laminated body, what laminated | stacked the nonwoven fabric and the plastic film one layer at a time, and what laminated | stacked the plastic film on the nonwoven fabric are shown, for example. In addition, when using the laminated body containing a plastic film or a plastic film for a top sheet, it is preferable that the hole for allowing a liquid to pass through is formed in the plastic film. The top sheet is preferably composed of a nonwoven fabric. The backsheet is preferably composed of a nonwoven fabric or a plastic film.

  When using a nonwoven fabric as the top sheet and the backsheet, the nonwoven fabric is preferably produced by a spunbond method, an air-through method, a point bond method, a melt blow method, an airlaid method, or a combination of these production methods. Moreover, you may use the nonwoven fabric manufactured by SMS method which combined the spun bond method and the melt blow method.

  When using a nonwoven fabric as the top sheet and the backsheet, the material of the nonwoven fabric can be appropriately selected from synthetic fibers such as polyolefin (eg, polypropylene, polyethylene), polyester (eg, PET), polyamide, and natural fibers such as pulp and silk. . Moreover, you may use a composite fiber as a synthetic fiber. Among these, polypropylene, polyethylene, PET, or a composite fiber combining them is preferable. If such a nonwoven fabric is used, a sheet having high strength and excellent texture can be easily obtained.

  The absorbent laminate is provided between the top sheet and the back sheet and absorbs body fluids such as urine. The absorbent laminate is disposed on the other side in the width direction below the upper absorbent body, the first lower absorbent body disposed on one side in the width direction below the upper absorbent body, and the upper absorbent body. And a second lower absorbent body.

  In the present invention, the “upper side” means the wearer side when wearing the absorbent article, and the “lower side” means the side opposite to the wearer when wearing the absorbent article, that is, the outside. means. The direction extending from the upper side to the lower side is defined as the vertical direction.

  The absorbent laminate has a longitudinal direction and a width direction. The “longitudinal direction” means a direction extending in the front-rear direction between the crotch of the wearer when the wearer wears the absorbent article. The “width direction” means a direction that is on the same plane as the absorbent laminate and is orthogonal to the longitudinal direction. A direction on the surface formed from the longitudinal direction and the width direction is defined as a plane direction.

  The shape (planar shape) of the absorbent laminate is not particularly limited. What is necessary is just to determine the shape of an absorptive laminated body suitably according to a use, for example, a rectangle, an hourglass type, a gourd type, a battledore type etc. are mentioned.

  The upper absorbent body, the first lower absorbent body, and the second lower absorbent body will be described. Hereinafter, the first lower absorbent body and the second lower absorbent body may be collectively referred to as a lower absorbent body.

  The upper absorbent body is disposed closer to the top sheet than the lower absorbent body. That is, the upper absorbent body is disposed on the top sheet side of the lower absorbent body. Therefore, the upper absorbent body receives body fluid such as urine that has passed through the top sheet and has been transferred to the absorbent laminate first before the lower absorbent body.

  The lower absorbent body is disposed closer to the back sheet than the upper absorbent body. That is, the lower absorbent body is disposed on the back sheet side of the upper absorbent body. The lower absorbent body basically receives body fluid such as urine that has passed through the upper absorbent body.

  The absorbent laminate includes a first lower absorbent body disposed on one side in the width direction below the upper absorbent body and a lower absorbent body on the other side in the width direction as the lower absorbent body. A second lower absorbent body. That is, the first lower absorber and the second lower absorber are arranged side by side in the width direction below the upper absorber. The first lower absorbent body and the second lower absorbent body may be disposed so as to be separated from each other in the width direction, or may be disposed so as to contact each other. The first lower absorbent body and the second lower absorbent body are not bonded to each other. Thus, by arrange | positioning a 1st lower side absorber and a 2nd lower side absorber, an absorptive laminated body is between a 1st lower side absorber and a 2nd lower side absorber, or 1st lower side It is easy to bend in the width direction at the portion where the side absorbent body and the second lower absorbent body are in contact.

  When the first lower absorber and the second lower absorber are arranged apart from each other, a lower absorber non-existing portion is formed between the first lower absorber and the second lower absorber. The Rukoto. At this time, the distance between the first lower absorber and the second lower absorber is preferably as short as possible. Specifically, the length in the width direction of the lower absorber non-existing portion is 10 mm or less. Is preferably 5 mm or less, more preferably 3 mm or less, and even more preferably 2 mm or less. By arranging the first lower absorbent body and the second lower absorbent body in this way, the first lower absorbent body and the second lower absorbent body can be provided in a wider area, and body fluid such as urine However, it becomes difficult to pass a large amount of the lower absorber non-existing portion, and leakage to the back sheet side can be suppressed.

  When the first lower absorber and the second lower absorber are arranged so as to be in contact with each other, a lower absorber contact portion where the first lower absorber and the second lower absorber are in contact with each other is formed. It becomes. At this time, it is preferable that the portion where the first lower absorbent body overlaps the second lower absorbent body is as small as possible. Specifically, the length in the width direction of the lower absorbent body contact portion is 5 mm or less. It is preferably 3 mm or less, more preferably 2 mm or less. Thus, by arranging the first lower absorbent body and the second lower absorbent body, it becomes easy to bend the absorbent laminate in the width direction.

  The first lower absorbent body and the second lower absorbent body are preferably bonded to the upper absorbent body with an adhesive or the like. If the first lower absorbent body and the second lower absorbent body are bonded to the upper absorbent body, the first lower absorbent body and the second lower absorbent body are arranged at desired positions with respect to the upper absorbent body. Becomes easier. Adhesion between the first lower absorbent body or the second lower absorbent body and the upper absorbent body is performed by, for example, an adhesive layer formed in a net shape.

  The shape (planar shape) and size of the upper absorbent body, the first lower absorbent body, and the second lower absorbent body are not particularly limited. However, it is preferable that the first lower absorbent body has a substantially line-symmetric shape with respect to the second lower absorbent body, and the first lower absorbent body and the second lower absorbent body are in the width direction of the absorbent laminate. It is preferable that they are arranged substantially symmetrically with respect to the center line (that is, the center line extending in the longitudinal direction). Moreover, it is preferable that the length of the longitudinal direction of a 1st lower side absorber and a 2nd lower side absorber is substantially equal to the length of the longitudinal direction of an upper side absorber. The sum of the length in the width direction of the first lower absorber and the second lower absorber and the length in the width direction of the lower absorber non-existing portion, or the first lower absorber and the second lower absorber The value obtained by subtracting the length in the width direction of the lower absorbent body contact portion from the total length in the width direction is preferably substantially equal to the length in the width direction of the upper absorbent body.

  Each of the upper absorbent body and the lower absorbent body has a water absorbent resin between the nonwoven fabric sheets and does not have pulp fibers. That is, each of the upper absorbent body and the lower absorbent body is configured by providing a water absorbent resin between the nonwoven fabric sheets, but no pulp fiber is provided between the nonwoven fabric sheets. Since an upper side absorber and a lower side absorber do not have a pulp fiber between nonwoven fabric sheets, they can be formed thin while having a high absorption capacity.

  Examples of the water-absorbing resin provided in the upper absorbent body and the lower absorbent body include polyacrylic acid-based water absorbent resins such as sodium polyacrylate; starch-acrylonitrile graft copolymer, starch-acrylic acid graft copolymer, starch -A starch-based water-absorbing resin such as an acrylamide graft copolymer; a polyvinyl alcohol-based water-absorbing resin such as a crosslinked polyvinyl alcohol; 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.

  The nonwoven fabric sheet used for the upper absorbent body and the lower absorbent body is liquid permeable. Examples of the nonwoven fabric sheet include hydrophilic fibers such as cellulose, rayon, and cotton; hydrophobic properties such as polyolefin, polyester, and polyamide. What made the fiber hydrophilic with a surfactant may be used. As will be described later, when non-woven sheets are heat-sealed, a non-woven sheet obtained by hydrophilizing a hydrophobic fiber such as polyolefin or polyester with a surfactant from the viewpoint of easy heat-sealing. It is preferable to use it. The upper absorbent body and the lower absorbent body are formed, for example, by arranging a water absorbent resin between two nonwoven fabric sheets, or by arranging a water absorbent resin inside the folded one nonwoven fabric sheet. The

  As described above, in the absorbent article of the present invention, the upper absorbent body having a water absorbent resin between the nonwoven fabric sheets and having no pulp fibers is the first absorbent body having the water absorbent resin between the nonwoven fabric sheets and having no pulp fibers. It has an absorptive laminate overlaid on the lower absorbent body and the second lower absorbent body. Therefore, the absorbent article of the present invention can be easily formed thin while having a high absorption capacity.

  In the absorbent article of the present invention, the first lower absorbent body and the second lower absorbent body are arranged side by side in the width direction on the lower side of the upper absorbent body. It becomes easy to bend, and the fitting property to the crotch of the wearer of an absorbent article can be improved. That is, when the absorbent article of the present invention is folded in the width direction, the first lower absorbent body and the second lower absorbent body can move independently in the width direction, so the absorbent laminate is folded in the width direction. It becomes easy.

  Furthermore, in the absorbent article of the present invention, the upper absorbent body is not divided into two, but the lower absorbent body is divided into two, that is, the first lower absorbent body and the second absorbent body as the lower absorbent body. By providing the lower absorbent body, body fluid such as urine hardly leaks in the longitudinal direction of the absorbent laminate. For example, when the upper absorbent body is divided into two in the width direction, the body fluid is easily diffused in the longitudinal direction in the grooves formed by dividing the upper absorbent body into two, and the body fluid becomes the absorbent laminate. In the absorbent article of the present invention, the body fluid that has migrated to the absorbent laminate spreads in the width direction and the longitudinal direction on the upper absorbent body, and the body fluid is less likely to overflow from the absorbent laminate. .

  In the absorbent article of the present invention, in order to make it easy to bend the absorbent laminate in the width direction, the upper absorbent body is adjacent to a plurality of water absorbent resin existing regions where the water absorbent resin is arranged between the nonwoven fabric sheets. It is preferable that there is a water absorbent resin non-existing region between the water absorbent resin existing regions, and the nonwoven fabric sheets are joined in the water absorbent resin non-existing region. At this time, it is preferable that the water absorbent resin-free region is formed so as to extend in the longitudinal direction, and as a result, a fold extending in the longitudinal direction is easily formed in the water absorbent resin-free region. That is, it becomes easy to bend the upper absorbent body in the width direction. More preferably, the water absorbent resin non-existing region extends in the longitudinal direction over the entire length of the upper absorbent body.

  The water absorbent resin absence region of the upper absorbent body also acts to increase the absorption capacity of the upper absorbent body and the lower absorbent body. The non-woven fabric sheets are joined to each other in the water-absorbing resin non-existing region to form a sealing portion, and in the sealing portion, body fluid easily diffuses in the planar direction on the upper absorbent body. The body fluid diffused in the plane direction is absorbed by the water absorbent resin disposed in the water absorbent resin existing region, and the body fluid is efficiently absorbed by the upper absorbent body. Further, in the sealing portion, the body fluid easily moves to the lower absorbent body through the water-absorbing resin non-existing region, and as a result, the body fluid is efficiently absorbed even in the lower absorbent body. In other words, the water-absorbing resin disposed in each of the upper absorbent body and the lower absorbent body contributes efficiently to the absorption of body fluid, increasing the absorption capacity as an absorbent laminate and absorbing the body fluid. It is quickly absorbed by the laminate.

  What is necessary is just to form a sealing part by joining nonwoven fabric sheets with an adhesive agent, or heat-sealing (heat-sealing) or ultrasonic bonding. From the viewpoint of increasing the diffusibility of body fluid such as urine in the sealing portion, the sealing portion is preferably formed by heat-sealing the nonwoven fabric sheets. Further, in order to achieve a good balance between the diffusibility and permeability of body fluid such as urine in the sealing portion, the nonwoven fabric sheets may be partially heat-sealed in the water-absorbent resin-free region. In this case, for example, the non-woven sheets may be partially heat-sealed by thermally fusing the non-woven sheets with a predetermined emboss pattern.

  It is preferable that the water absorbent resin non-existing region of the upper absorbent body is provided so as to overlap with the lower absorbent non-existing portion or the lower absorbent body contacting portion. That is, the first lower absorber and the second lower absorber are arranged apart from each other, and a lower absorber non-existing portion is formed between the first lower absorber and the second lower absorber. The upper absorbent body preferably extends in the longitudinal direction so that the water absorbent resin non-existing region of the upper absorbent body overlaps the lower absorbent non-existing portion, and the first lower absorbent body and the second lower absorbent body are When the lower absorbent body contact portion that is arranged so as to be in contact with each other and the first lower absorbent body and the second lower absorbent body are in contact with each other is formed, the water absorbent resin-free region of the upper absorbent body is located on the lower side. It is preferable to extend in the longitudinal direction so as to overlap with the absorber non-existing portion. If the upper absorbent body extends in the longitudinal direction so that the water absorbent resin-free region of the upper absorbent body overlaps with the lower absorbent body non-existing portion or the lower absorbent body contact portion, the absorbent laminate can be easily folded in the width direction. Thus, the fit of the absorbent article to the crotch of the wearer can be enhanced. Moreover, if it is provided so that the water absorbent resin non-existing region of the upper absorbent body overlaps with the lower absorbent non-existing portion or the lower absorbent body contact portion, the non-woven fabric is not used in the water absorbent resin non-existing region of the upper absorbent body. Even if the sheets are thermally fused and cured, it is easy to bend the absorbent laminate.

  The water absorbent resin-free region of the upper absorbent body preferably extends in the longitudinal direction over the entire length of the upper absorbent body so as to overlap the lower absorbent body absent portion or the lower absorbent body contact portion. Thus, if the upper absorbent body is provided with the water absorbent resin non-existing region, the upper absorbent body can be easily bent in the water absorbent resin non-existing region. That is, it becomes easy to bend the absorbent laminate in the width direction.

  In the case where the water absorbent resin absence region of the upper absorbent body is provided so as to overlap the lower absorbent body absent portion, the water absorbent resin absent region of the upper absorbent body overlaps at least a part of the lower absorbent body absent portion. It only has to be. For example, the lower absorber non-existing portion may be formed wider than the water absorbent resin non-existing region of the upper absorber, may be formed narrow, or may be formed with the same width Good.

  On the other hand, when the upper absorbent body is provided so that the water absorbent resin non-existing region overlaps with the lower absorbent body contact portion, the upper absorbent body does not have the same water absorbent resin non-existing region as the lower absorbent body contact portion. It is preferable to form it wider. If the water absorbent resin non-existing region of the upper absorbent body is formed narrower than the lower absorbent body contact portion, the portion where the water absorbent resin non-existing region of the upper absorbent body and the lower absorbent body contact portion overlap This is because the absorbent laminate may be difficult to bend.

  The upper absorbent body may have a water absorbent resin absent region that does not overlap with the lower absorbent body non-existing portion or the lower absorbent body contact portion. In the upper absorbent body, for example, a plurality of water absorbent resin absence regions extending in the longitudinal direction and a plurality of water absorbent resin existing regions extending in the longitudinal direction may be alternately provided in the width direction. Preferably, the upper absorbent body has water absorbent resin existing regions on both sides in the width direction of the water absorbent resin absent region that overlaps with the lower absorber non-existing portion or the lower absorber contact portion, and further on both outer sides thereof. It has a water absorbent resin absence region that overlaps with the first lower absorbent body and a water absorbent resin absent region that overlaps with the second lower absorbent body. Thus, if the upper absorbent body is provided with a water absorbent resin non-existing region that overlaps with the first lower absorbent body and a water absorbent resin non-existing region that overlaps with the second lower absorbent body, these water absorbent resin absent The body fluid easily moves from the upper absorbent body to the lower absorbent body through the region, and the body fluid is efficiently absorbed by the lower absorbent body.

  In the absorbent article of the present invention, the lower absorbent body also has a non-water absorbent resin between the nonwoven fabric sheets and a plurality of water absorbent resin existing regions in which the water absorbent resin is arranged and between adjacent water absorbent resin existing regions. It is preferable that the nonwoven fabric sheets are joined to each other in the region where the water absorbent resin is not present. If the lower absorbent body is formed in this manner, the body fluid can easily diffuse on the lower absorbent body in the sealing portion formed by joining the nonwoven fabric sheets in the water-absorbent resin-free region. As a result, the body fluid is efficiently absorbed by the water absorbent resin disposed in the water absorbent resin existing region of the lower absorbent body.

  It is preferable that the water absorbent resin non-existing region of the lower absorbent body is formed to extend in the longitudinal direction, and as a result, the absorbent laminate can be easily bent in the width direction. More preferably, the water absorbent resin-free region extends in the longitudinal direction over the entire length of the lower absorbent body.

  The description of the sealing part formed in the lower absorbent body is the same as the description of the sealing part of the upper absorbent body. Preferably, the non-woven fabric sheet is heat-sealed at the sealing portion of the lower absorbent body. If the lower absorbent body is a sealing part and the nonwoven fabric sheets are heat-sealed, body fluid such as urine will not easily pass through the lower absorbent body sealing part and move to the lower side of the lower absorbent body. The body fluid can be prevented from leaking to the back sheet side.

  The water absorbent resin absence region of the lower absorbent body is preferably provided so as to overlap the water absorbent resin absent region of the upper absorbent body. That is, the upper absorbent body has a water absorbent resin existing region on both sides of a water absorbent resin absent region that overlaps with the lower absorber non-existing portion or the lower absorber contact portion, and further on both outer sides of the first lower absorbent. It is preferable to have a water absorbent resin absent region that overlaps the water absorbent resin absent region of the body and a water absorbent resin absent region that overlaps the water absorbent resin absent region of the second lower absorbent body. If the water absorbent resin absence region of the lower absorbent body is provided so as to overlap the water absorbent resin absent region of the upper absorbent body, body fluid will be absorbed through the water absorbent resin absent region of the upper absorbent body. When it moves on the body, the body fluid easily moves to the region where the water absorbent resin is not present in the lower absorbent body, and the body fluid is suitably diffused on the lower absorbent body. As a result, body fluid is efficiently absorbed by the lower absorbent body.

  When the sealing part is formed in the water-absorbing resin non-existing region, it is preferable that the sealing part maintains the bonding between the nonwoven fabric sheets even when the upper absorbent body or the lower absorbent body absorbs water. That is, in the upper absorbent body, it is preferable that the upper absorbent body absorbs water and the bonding between the nonwoven fabric sheets of the upper absorbent body is maintained, and in the lower absorbent body, the lower absorbent body absorbs water, It is preferable that the joining of the nonwoven fabric sheets of the side absorbent body is maintained. When the upper absorbent body or the lower absorbent body absorbs water, the water absorbent resin disposed between the nonwoven fabric sheets swells, and the nonwoven fabric sheets in the sealing portion may be unbonded. In this case, it is difficult for body fluid to pass through the water-absorbing resin-free region, or the diffusibility of body fluid in the water-absorbing resin-free region is reduced. Therefore, it is preferable that the non-woven sheets are joined to each other even when the upper absorbent body or the lower absorbent body absorbs the sealing portion.

In order to maintain the bonding between the nonwoven fabric sheets at the sealing portion, it is preferable to set the upper limit of the water absorbent resin content in the water absorbent resin existing region. Therefore, the water-absorbing resin content in the water-absorbent resin presence region is preferably 400 g / m ² or less, more preferably 385 g / m ^2. On the other hand, from the viewpoint of securing the absorption capacity in the water absorbent resin existing region, the water absorbent resin content in the water absorbent resin existing region is preferably 100 g / m ² or more, and more preferably 150 g / m ² or more.

  In order to maintain the bonding between the nonwoven fabric sheets at the sealing portion, it is also preferable to bond the nonwoven fabric sheets with a rubber-based adhesive or a styrene-based elastomer or to heat-seal them as described later.

  The nonwoven fabric sheet of the upper absorbent body or the lower absorbent body is coated with an adhesive and provided with an adhesive layer, and the water absorbent resin in the water absorbent resin existing region is fixed to the nonwoven fabric sheet by the adhesive layer. Is preferred. The adhesive layer may be provided on at least one nonwoven fabric sheet sandwiching the water absorbent resin, but preferably the adhesive layer is provided on both nonwoven fabric sheets sandwiching the water absorbent resin. The water-absorbing resin disposed in the water-absorbing resin-existing region only needs to be at least partially fixed to the adhesive layer. For example, the water-absorbing resin in contact with the adhesive layer may be fixed to the adhesive layer. . If the water absorbent resin is fixed to the nonwoven fabric sheet by the adhesive layer, the water absorbent resin is difficult to move between the nonwoven fabric sheets before water absorption of the water absorbent resin, and the body fluid of the upper absorbent body or the lower absorbent body Absorption capacity is easily secured. Even after water absorption of the water-absorbent resin, the gelled water-absorbent resin is less likely to move between the nonwoven fabric sheets, so that the water-absorbent resin is agglomerated, making it difficult for the wearer to feel uncomfortable.

  When the adhesive layer is provided on the upper absorbent body or the lower absorbent body, it is preferable that the nonwoven fabric sheets are joined to each other in the water-absorbent resin-free region by the adhesive layer. In this case, even when the water absorbent resin disposed in the water absorbent resin existing region absorbs water and swells, the joining of the nonwoven fabric sheets, that is, the sealing portion is easily maintained.

  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 in the water absorbent resin existing region. In this respect, the adhesive layer is preferably formed in a net shape. As a method of forming the adhesive layer in a net shape, a curtain spray method, a spiral coating method, an omega coating method, or the like may be employed.

  Examples of the adhesive used for the adhesive layer include rubber adhesives such as natural rubber, butyl rubber and polyisoprene; styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer. Styrenic elastomers such as (SBS), styrene-ethylene-butadiene-styrene block copolymer (SEBS), styrene-ethylene-propylene-styrene block copolymer (SEPS); ethylene-vinyl acetate copolymer (EVA); polyester; Acrylic type; polyolefin type elastomer etc. can be used. These adhesives may use only 1 type and may use 2 or more types together. The adhesive preferably has an adhesive strength that can prevent the water-absorbing resin from falling off after water absorption, and has an elongation that can follow the swelling of the water-absorbing resin. Moreover, even if a water absorbing resin absorbs water and swells, what has the adhesive force of the grade which the joining of a nonwoven fabric sheet is maintained is preferable. In these respects, it is preferable to use a rubber adhesive or a styrene elastomer.

  A configuration example of the absorbent laminate will be described with reference to the drawings. FIG. 1 shows an example of a cross-sectional view in the width direction of the absorbent laminate. In the drawings of the present application, the arrow x represents the width direction, the arrow y represents the longitudinal direction, and the vertical direction to the surface formed by the arrows x and y represents the up-down direction z. In FIG. 1, the upper side of the figure corresponds to the upper side of the absorbent laminate, and the lower side of the figure corresponds to the lower side of the absorbent laminate.

  The absorbent laminate 10 shown in FIG. 1 includes an upper absorbent body 11, a first lower absorbent body 21 disposed on one side of the width direction x below the upper absorbent body 11, and an upper absorbent body 11. It has the 2nd lower side absorber 31 distribute | arranged to the other side of the width direction x on the lower side. The first lower absorber 21 and the second lower absorber 31 are spaced apart from each other in the width direction x, and the lower absorber non-between the first lower absorber 21 and the second lower absorber 31. Existence portion 41 is formed.

  In the upper absorbent body 11, a water absorbent resin 13 is arranged between the nonwoven fabric sheets 12. Specifically, the upper absorbent body 11 has a plurality of water-absorbing resin existing regions 14 in which the water-absorbing resin 13 is arranged between the nonwoven fabric sheets 12, and no water-absorbing resin exists between the adjacent water-absorbing resin existing regions 14. The nonwoven fabric sheets 12 are joined to each other in the region 15 having no water absorbent resin. An adhesive is applied to the nonwoven fabric sheet 12 to form an adhesive layer 16. In the water absorbent resin presence region 14, the water absorbent resin 13 is fixed to the nonwoven fabric sheet 12 by the adhesive layer 16, and in the water absorbent resin non-existence region 15, the nonwoven fabric sheets 12 are joined by the adhesive layer 16. In the upper absorbent body 11, the water absorbent resin existing region 14 and the water absorbent resin absent region 15 extend in the longitudinal direction, respectively, and the water absorbent resin present region 14 and the water absorbent resin absent region 15 alternately in the width direction x. It is arranged.

  The first lower absorbent body 21 and the second lower absorbent body 31 are also formed in the same manner as the upper absorbent body 11. Therefore, the description regarding the first lower absorbent body 21 is the same as the above description regarding the upper absorbent body 11. However, the “upper absorbent body 11”, “nonwoven fabric sheet 12”, “water absorbent resin 13”, “water absorbent resin existing region 14”, “water absorbent resin non-existing region 15”, “adhesive layer 16”, The terms “first lower absorbent body 21”, “nonwoven fabric sheet 22”, “water absorbent resin 23”, “water absorbent resin presence region 24”, “water absorbent resin non-existence region 25”, and “adhesive layer 26” are read. . The description regarding the second lower absorbent body 31 is also the same as the above description regarding the upper absorbent body 11. However, the “upper absorbent body 11”, “nonwoven fabric sheet 12”, “water absorbent resin 13”, “water absorbent resin existing region 14”, “water absorbent resin non-existing region 15”, “adhesive layer 16”, The terms “second lower absorbent body 31”, “nonwoven fabric sheet 32”, “water absorbent resin 33”, “water absorbent resin presence region 34”, “water absorbent resin non-existence region 35”, and “adhesive layer 36” are read. .

  The upper absorbent body 11 has water absorbent resin present areas 14 on both sides of a water absorbent resin absent area 15A that overlaps with the lower absorbent absent section 41, and water absorbent resin absent areas 15B and 15C on both outer sides thereof. doing. Since the upper absorbent body 11 extends in the longitudinal direction so that the water absorbent resin non-existing region 15A overlaps the lower absorbent body non-existing portion 41, the absorbent laminate 10 is formed with the water absorbent resin non-existing region 15A as a fold. It becomes easy to bend in the width direction x.

  The water absorbent resin absent region 15B of the upper absorbent body 11 overlaps the water absorbent resin absent region 25 of the first lower absorbent body 21, and the water absorbent resin absent region 15C of the upper absorbent body 11 is the second lower side. It overlaps with the water-absorbent resin non-existing region 35 of the absorber 31. That is, the upper absorbent body 11 includes a water absorbent resin absent region 15B that overlaps with the water absorbent resin absent region 25 of the first lower absorbent body 21, and a water absorbent resin absent region 35 of the second lower absorbent body 31. Overlapping water-absorbing resin non-existing region 15C is provided. Therefore, body fluids such as urine received by the absorbent laminate 10 pass through the water absorbent resin non-existing regions 15B and 15C of the upper absorbent body 11 and are respectively in the first lower absorbent body 21 and the second lower absorbent body 31. The body fluid that has shifted in this way is longitudinal in the water absorbent resin non-existing region 25 of the first lower absorbent body 21 and the water absorbent resin non-existing region 35 of the second lower absorbent body 31. It becomes easy to diffuse. As a result, the body fluid is efficiently absorbed by the first lower absorbent body 21 and the second lower absorbent body 31.

  In the absorbent laminate 10 shown in FIG. 1, the first lower absorbent body 21 and the second lower absorbent body 31 are each composed of one layer, but the first lower absorbent body 21 and the second lower absorbent body A plurality of absorbers 31 may be stacked. The upper absorbent body 11 is preferably composed of one layer, which makes it easy to bend the absorbent laminate 10.

  Next, a configuration example of an absorbent laminate different from the absorbent laminate shown in FIG. 1 will be described with reference to FIG. FIG. 2 shows another example of a cross-sectional view in the width direction of the absorbent laminate. The absorbent laminate shown in FIG. 2 is different from the absorbent laminate shown in FIG. 1 in the configuration of the first lower absorbent body and the second lower absorbent body. In addition, below, description which abbreviate | omits the description which overlaps with description of the absorptive laminated body shown in FIG.

  In the absorbent laminate 10 shown in FIG. 2, the first lower absorbent body 21 is folded back at the water absorbent resin non-existing region 25 extending in the longitudinal direction to form the first fold line 27, and the second lower absorbent body. The body 31 is folded back at the water absorbent resin non-existing region 35 extending in the longitudinal direction to form a second fold 37. And the 1st lower side absorber 21 and the 2nd lower side absorber 31 are distribute | arranged so that the 1st crease | fold 27 and the 2nd crease | fold 37 may mutually oppose. If the first lower absorbent body 21 and the second lower absorbent body 31 are formed in this way, the absorption capacity of the absorbent laminate 10 is increased, and the first lower absorbent body 21 and the second lower absorbent body are increased. By forming a crease between or at the boundaries of the absorbent body 31, the absorbent laminate 10 can be easily folded in the width direction x. Furthermore, a bulge is easily formed on the surface of the absorbent laminate 10 on the top sheet side at the portion where the first fold line 27 and the second fold line 37 are located, and this bulge causes the wearer of the absorbent laminate body 10 to wear. Fit to the crotch (especially female urination) is improved.

  When the first lower absorbent body 21 is folded at the first fold line 27, the first lower absorbent body 21 is present on the both sides of the water absorbent resin absence region 25 where the first fold line 27 is formed. It is preferable that the water-absorbing resin non-existing regions 25 provided through the regions 24 are arranged so as to overlap each other. Similarly, when the second lower absorbent body 31 is folded at the second fold line 37, the second lower absorbent body 31 absorbs water on both sides of the water absorbent resin non-existing region 35 where the second fold line 37 is formed. It is preferable that the water absorbent resin non-existing regions 35 provided via the conductive resin existing region 34 are arranged so as to overlap each other. If the first lower absorbent body 21 and the second lower absorbent body 31 are formed in this way, the upper layer and the lower layer of the folded first lower absorbent body 21 at the first lower absorbent body 21. The body fluid such as urine is efficiently absorbed by both of the layers on the side, and the second lower absorbent body 31 has the upper layer and the lower layer of the folded second lower absorbent body 31. In both cases, body fluids such as urine are efficiently absorbed. That is, the body fluid that has passed through the water absorbent resin absence region 25 in the upper layer of the folded first lower absorbent body 21 is likely to diffuse in the longitudinal direction in the water absorbent resin absent region 25 in the lower layer. At the same time, the body fluid that has passed through the water absorbent resin absence region 35 in the upper layer of the folded second lower absorbent body 31 is likely to diffuse in the longitudinal direction in the water absorbent resin absence region 35 in the lower layer. As a result, the body fluid is efficiently absorbed by the first lower absorbent body 21 and the second lower absorbent body 31.

  When the first lower absorbent body 21 is folded at the first fold line 27 and the second lower absorbent body 31 is folded at the second fold line 37, the first lower absorbent body 21 and the second lower absorbent body 31 are folded. Are preferably formed by folding the upper absorbent body 11 in the width direction x. In FIG. 2, the first lower absorbent body 21 and the second lower absorbent body 31 are formed in this way. In this case, the first lower absorbent body 21 and the second lower absorbent body 31 can be manufactured by providing a process of bending the upper absorbent body 11 in the width direction x after the manufacturing process of the upper absorbent body 11. And manufacture of the absorptive layered product 10 becomes easy, and manufacturing cost of an absorptive article can be held down low.

  As mentioned above, although the structural example of the absorptive laminated body was demonstrated referring drawings, the structure of an absorptive laminated body is not limited to the embodiment shown in drawing. For example, an auxiliary absorber may be provided as another absorber below the first lower absorber and the second lower absorber. In this case, the auxiliary absorbent body preferably contains hydrophilic fibers (pulp fibers, cellulose fibers, etc.) and a water absorbent resin. For example, it is possible to use a mixture of hydrophilic fibers mixed with or dispersed in a collection of hydrophilic fibers. Since the absorbent body containing the hydrophilic fiber and the water absorbent resin can be formed relatively flexibly, such an auxiliary absorbent body is further provided below the first lower absorbent body and the second lower absorbent body. Even in this case, the bending of the absorbent laminate in the width direction is hardly inhibited. And body fluids, such as urine which moved to the lower side of the 1st lower side absorber and the 2nd lower side absorber by providing an auxiliary absorber below the 1st lower side absorber and the 2nd lower side absorber Is prevented from leaking through the backsheet.

  The absorbent article is preferably provided with a pair of rising flaps on both sides in the width direction. By providing the rising flap, side leakage of excrement such as urine can be prevented. The rising flap is formed, for example, by joining side sheets extending in the longitudinal 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 an elastic member, the elastic elastic material used for absorbent articles, such as normal disposable diapers, such as a polyurethane thread, a 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, a polyurethane yarn having a fineness of 100 to 2,500 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.

  Next, the absorbent article of the present invention will be described with reference to FIGS. 3 and 4 taking a urine pad as an example. The present invention is not limited to the embodiments shown in the drawings. 3 and 4, an absorbent article provided with the absorbent laminate 10 shown in FIG. 2 is shown. FIG. 3 shows a plan view of a urine pad as an absorbent article as seen from the top sheet side. FIG. 4 is a cross-sectional view taken along the line AA of the absorbent article in FIG. In FIG. 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 absorbent article 1 has a top sheet 2, a back sheet 3, and an absorbent laminate 10 provided therebetween. The top sheet 2 is arranged so as to face the wearer's skin, and transmits body fluid such as urine. The body fluid that has passed through the top sheet 2 is accommodated in the absorbent laminate 10. The back sheet 3 prevents body fluid from leaking to the outside.

  The absorbent laminate 10 includes an upper absorbent body 11, a first lower absorbent body 21 disposed on one side of the width direction x below the upper absorbent body 11, and a width direction below the upper absorbent body 11. a second lower absorber 31 disposed on the other side of x. The detailed description of the upper absorbent body 11, the first lower absorbent body 21, and the second lower absorbent body 31 is as described above. The body fluid that has transferred to the absorbent laminate 10 is first absorbed by the upper absorbent body 11, and the body fluid that has passed through the upper absorbent body 11 is absorbed by the first lower absorbent body 21 and the second lower absorbent body 31. Since the absorbent article 1 has the first lower absorbent body 21 and the second lower absorbent body 31 arranged side by side in the width direction x below the upper absorbent body 11, the absorbent laminate 10 has a width. It becomes easy to bend | fold in the direction x, and the fit property to the crotch of the wearer of the absorbent article 1 can be improved.

  As shown in FIG. 4, an upper mount 4 is provided between the top sheet 2 and the absorbent laminate 10 (upper absorbent body 11), and the back sheet 3 and the absorbent laminate 10 (first lower absorbent article). 21 and the second lower absorbent body 31) are preferably provided with a lower mount 5. The upper mount 4 and the lower mount 5 are provided in order to improve the diffusibility of body fluids such as urine and to prevent the absorbent laminate 10 from being deformed. The upper mount 4 is preferably liquid permeable, and the lower mount 5 may be liquid permeable or liquid impermeable. As the upper mount 4 and the lower mount 5, tissue paper, thin paper, crepe paper, or the like can be used.

  The absorbent article 1 is preferably provided with side sheets 6 extending in the longitudinal direction y on both sides of the top sheet 2 in the width direction x. The side sheet 6 is joined to the top sheet 2 at the joint 7. 3 and 4, the side seats 6 are each provided with three standing elastic members 8 inward in the width direction x. When the absorbent article 1 is used, the inner side of the side sheet 6 rises toward the wearer's skin due to the contraction force of the standing elastic member 8, thereby preventing lateral leakage of excrement such as urine.

1: Absorbent article (urine pad)
2: Top sheet 3: Back sheet 10: Absorbent laminate 11: Upper absorbent body 21: First lower absorbent body 31: Second lower absorbent body 12, 22, 32: Non-woven sheet 13, 23, 33: Water absorption Resin 14, 24, 34: Water-absorbing resin existing region 15, 25, 35: Water-absorbing resin non-existing region 27: First fold 37: Second fold 41: Lower side absorber non-existing portion

Claims (8)

An absorbent article having a top sheet, a back sheet, and an absorbent laminate provided therebetween,
The absorbent laminate has a longitudinal direction and a width direction, an upper absorbent body, a first lower absorbent body disposed on one side of the width direction on the lower side of the upper absorbent body, and the upper side A second lower absorber disposed on the other side of the width direction on the lower side of the absorber,
The upper absorbent body, the first lower absorbent body, and the second lower absorbent body each have a water-absorbing resin between nonwoven fabric sheets and have no pulp fibers. The first lower absorbent body and the second lower absorbent body are spaced apart from each other in the width direction, and the lower absorbent body is not disposed between the first lower absorbent body and the second lower absorbent body. The existence part is formed,
The upper absorbent body has a plurality of water absorbent resin existing regions in which a water absorbent resin is arranged between the nonwoven fabric sheets, and a water absorbent resin non-existing region between adjacent water absorbent resin existing regions. Non-woven fabric sheets are joined in the resin-free region
2. The absorbent article according to claim 1, wherein the water absorbent resin-free region of the upper absorbent body extends in the longitudinal direction so as to overlap the lower absorbent body absent portion. The first lower absorbent body and the second lower absorbent body are arranged so as to contact each other, and a lower absorbent body contact portion where the first lower absorbent body and the second lower absorbent body are in contact with each other is formed. ,
The upper absorbent body has a plurality of water absorbent resin existing regions in which a water absorbent resin is arranged between the nonwoven fabric sheets, and a water absorbent resin non-existing region between adjacent water absorbent resin existing regions. Non-woven fabric sheets are joined together in the resin-free region,
The absorbent article according to claim 1, wherein the water absorbent resin-free region of the upper absorbent body extends in the longitudinal direction so as to overlap with the lower absorbent body contact portion.   The absorbent article according to claim 2 or 3, wherein the upper absorbent body is heat-sealed between nonwoven fabric sheets in a water-absorbent resin-free region. Each of the first lower absorbent body and the second lower absorbent body absorbs water between a plurality of water absorbent resin existing areas in which a water absorbent resin is arranged and an adjacent water absorbent resin existing area between the nonwoven fabric sheets. A non-existent resin non-existing region, the non-woven fabric sheets are joined in the non-existent water-absorbing resin region,
The upper absorbent body has a water absorbent resin present area on both sides of a water absorbent resin absent area that overlaps with the lower absorbent body non-existing part or the lower absorbent body contact part, and further, the first lower The water absorbent resin absent region that overlaps the water absorbent resin absent region of the side absorbent body, and the water absorbent resin absent region that overlaps the water absorbent resin absent region of the second lower absorbent body. The absorbent article as described in any one. Each of the first lower absorbent body and the second lower absorbent body absorbs water between a plurality of water absorbent resin existing areas in which a water absorbent resin is arranged and an adjacent water absorbent resin existing area between the nonwoven fabric sheets. A non-existent resin non-existing region, the non-woven fabric sheets are joined in the non-existent water-absorbing resin region,
The first lower absorbent body is folded back in the water absorbent resin non-existing region extending in the longitudinal direction to form a first fold,
The second lower absorbent body is folded back in the water-absorbing resin non-existing region extending in the longitudinal direction to form a second fold line,
The said 1st lower side absorber and the said 2nd lower side absorber are distribute | arranged so that the said 1st crease | fold and the said 2nd crease | face may mutually oppose. Absorbent articles.   The absorbent article according to claim 6, wherein the first lower absorbent body and the second lower absorbent body are formed by folding the upper absorbent body in the width direction. In the first lower absorbent body, the water absorbent resin non-existing regions provided on both sides of the water absorbent resin non-existing region where the first fold is formed via the water absorbent resin existing region overlap each other. And
In the second lower absorbent body, the water absorbent resin non-existing regions provided via the water absorbent resin existing regions on both sides of the water absorbent resin non-existing region where the second folds are formed overlap each other. The absorbent article according to claim 6 or 7.

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