JP2018050912A5 - - Google Patents

Description

Disposable swimsuit

  The present invention relates to a disposable swimsuit suitable for underwater use such as water play and swimming.

  In recent years, disposable swimsuits (also called swimming pants) that are intended for use in infant pools have been put on the market, and in terms of preventing the excretion of urine and feces from spreading into the water, It is different from a swimsuit (see, for example, Patent Documents 1 and 2).

  Such a disposable swimsuit has as its basic elements an absorber that absorbs urine and a liquid-permeable front and back layers that cover the front and back sides, respectively.

  To these basic elements, a three-dimensional gather that rises on the skin side on both sides of the inner surface of the product, an elastic member that imparts stretchability around the trunk, and the like are added as appropriate.

  As the absorbent body, a piled body of pulp fibers is generally used. Since the disposable swimsuit is used underwater, the water that has entered inside is also absorbed by the absorber. Therefore, unlike ordinary disposable swimsuits, it is considered that it is preferable not to contain the superabsorbent polymer in the absorbent body or to contain only a small amount so that the absorbent body does not swell even if contained.

JP 2005-296372 A JP-A-2005-537

  However, conventional disposable swimsuits contain little or no superabsorbent polymer, so if there is urination before entering the water or when it is not decided whether to enter the water just by playing in the water, the absorbed amount will be There was a risk of leakage due to little or no leakage.

  Then, the subject of this invention is preventing the leak before entering water, preventing the expansion | swelling of the absorber after entering water.

A typical aspect of the present invention that solves the above problems is as follows.
<First aspect>
A superabsorbent comprising a superabsorbent polymer provided in a region covering the crotch;
A liquid-permeable front side layer covering the front side of the superabsorbent, and
A back side layer covering the back side of the superabsorbent, and
An outlet for taking out the super absorbent body out of the disposable swimsuit;
It is possible to remove all of the superabsorbent,
Disposable swimsuit characterized by that.

(Function and effect)
Although the present invention is a disposable swimsuit, it is assumed that there was urination before entering the water or when it was not decided whether to enter the water just by playing at the waterside by providing a high absorbent body containing a superabsorbent polymer. However, since it has a take-out port for taking out the super absorbent body out of the disposable swimsuit, it can be removed when entering the water. It is also possible to prevent the absorbent body from expanding after entering the water in the same manner as a conventional disposable swimsuit.

<Second aspect>
Each comprising a low absorbent body composed of a fiber assembly that does not contain a superabsorbent polymer, arranged adjacent to both front and back sides of the high absorbent body,
The high absorber can be extracted from between the low absorbers,
The outlet is provided around the high absorber and the low absorber,
The end on the outlet side of the high absorbent body protrudes outside the periphery of the low absorbent body.
The disposable swimsuit according to the first aspect.

(Function and effect)
In this aspect, when the high-absorber is grasped through the take-out port, only the high-absorber can be easily grasped and taken out from the take-out port, so that there is an advantage that the high-absorber can be easily removed. In addition, even if all of the superabsorbent is removed when entering the water, the absorption function of the low-absorbent can be maintained, and the low-absorbent does not contain a superabsorbent polymer, so it is the same as a conventional disposable swimsuit It is also possible to prevent the absorbent from expanding after entering water.

<Third Aspect>
Each comprising a low absorbent body composed of a fiber assembly that does not contain a superabsorbent polymer, arranged adjacent to both front and back sides of the high absorbent body,
The high absorber can be extracted from between the low absorbers,
The outlet is provided around the high absorber and the low absorber,
In at least one of the surface facing the low absorber in the high absorber and the surface facing the high absorber in the low absorber, a through portion or a recess penetrating in the thickness direction is opened.
The disposable swimsuit according to the first or second aspect.

(Function and effect)
In this aspect, the contact area between the high-absorber and the low-absorber is reduced by the penetrating portion or the recess, and the resistance when the high-absorber is extracted from between the low-absorbers is reduced. There is an advantage of becoming. In addition, even if all of the superabsorbent is removed when entering the water, the absorption function of the low-absorbent can be maintained, and the low-absorbent does not contain a superabsorbent polymer, so it is the same as a conventional disposable swimsuit It is also possible to prevent the absorbent from expanding after entering water.

<Fourth aspect>
The high absorbent body is surrounded by a first sheet located on the front side, a second sheet disposed on the back side thereof, and a joint between the first sheet and the second sheet, and the first sheet and the second sheet. Has a large number of cells that are not joined to each other, and a granular material containing superabsorbent polymer particles contained in this cell.
The disposable swimsuit according to any one of the first to third aspects.

(Function and effect)
Since the superabsorbent body of this aspect can be made thin, light and flexible, there is an advantage that it is easy to remove, and even before removal, the wearing feeling of the disposable swimsuit is hardly impaired.

<Fifth aspect>
A front exterior body that forms the front body and a rear exterior body that forms the back body, which are separated in the front-rear direction;
An interior body extending in the front-rear direction from the front exterior body to the rear exterior body and joined to the front exterior body and the rear exterior body,
Side seal portions in which both side portions of the exterior body in the front body and both side portions of the exterior body in the back body are joined,
A disposable swimsuit with a waist opening and a pair of left and right leg openings,
The interior body includes the superabsorbent body, and the front side layer and the back side layer covering the front side and the back side, respectively.
The superabsorbent can be extracted from between the front side layer and the back side layer,
At least one of the front portion and the rear portion of the interior body is a non-joint portion in which the front side layer and the back side layer are not joined from the waist side edge of the interior body to the waist side edge of the high absorbent body. And
Among the front exterior body and the rear exterior body, at least one exterior body that overlaps with the non-joined portion is a laminate of a plurality of sheet layers,
An outer cover in which a portion of the interior body having a non-joined portion is covered with an inner cover portion made of a sheet layer of the exterior body and a portion of the interior body having a non-joined portion is made of a sheet layer of the exterior body Covered by a part, the inner cover part is joined to an interior body, and the outer cover part is detachably joined to the interior body or is unjoined,
The disposable swimsuit according to any one of the first to fourth aspects.

(Function and effect)
In this aspect, the outer cover part is peeled off from the interior body from the outer side of the disposable swimsuit in the mounted state, and the part having the non-joined portion of the interior body is exposed on the surface, and the end of the superabsorbent body is handed through this non-joined part. Can be pulled out by grabbing the super absorbent. Therefore, it becomes easier to remove the superabsorbent in the mounted state.

<Sixth aspect>
An exterior body that individually or integrally configures the front body and the back body, and an interior body including an absorbent body joined to the exterior body so as to extend from the front body to the back body,
Side seal portions in which both side portions of the exterior body in the front body and both side portions of the exterior body in the back body are joined,
A disposable swimsuit with a waist opening and a pair of left and right leg openings,
The interior body includes the superabsorbent body, and the front side layer and the back side layer covering the front side and the back side, respectively.
The outlet is provided on the side of the interior body,
The disposable swimsuit according to any one of the first to fourth aspects.

(Function and effect)
In this aspect, a hand can be put out from the leg opening of the disposable swimsuit in the attached state to the outlet of the side of the interior body, and the superabsorbent can be grasped and extracted. Therefore, the high absorbent body can be easily removed from the outside of the disposable swimsuit in the mounted state.

  As described above, according to the present invention, there are advantages such as prevention of leakage before entering water while preventing expansion of the absorbent body after entering water.

It is an expanded state top view which shows the inner surface of a disposable disposable swimsuit. It is an expanded state top view which shows the outer surface of a disposable disposable swimsuit. It is 2-2 sectional drawing of FIG. FIG. 3 is a 3-3 cross-sectional view of FIG. 1. (A) 4-4 sectional drawing of FIG. 1 and (b) 5-5 sectional drawing of FIG. It is a perspective view of a disposable swimsuit. It is an expanded state top view which shows the outer surface of a disposable swimsuit. (A) 4-4 sectional drawing of FIG. 7 and (b) 5-5 sectional drawing of FIG. It is sectional drawing which expands and shows the principal part of 4-4 cross section of FIG. 1 at the time of taking out a high absorber. (A) 4-4 sectional drawing of FIG. 1 and (b) 5-5 sectional drawing of FIG. It is sectional drawing which expands and shows the principal part of 4-4 cross section of FIG. 1 at the time of taking out a high absorber. It is an expanded state top view which shows the inner surface of a disposable disposable swimsuit. (A) 4-4 sectional drawing of FIG. 12 and (b) 5-5 sectional drawing of FIG. It is 2-2 sectional drawing of FIG. It is 2-2 sectional drawing of FIG. 1 at the time of taking out a high absorber. It is a top view of a high absorber. It is a top view of a high absorber. (A) The principal part fracture | rupture top view of a high absorber, (b) It is the 1-1 sectional drawing.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dotted pattern in the cross-sectional view shows an adhesive as a joining means for joining the constituent members located on the front side and the back side, and is a solid, bead, curtain, summit or spiral coating of hot melt adhesive, or pattern coating (Transfer of hot melt adhesive in a relief printing system) or the like, or the fixed portion of the elastic stretchable member is formed by application to the outer peripheral surface of an elastic stretchable member such as a comb gun or a shroud coating instead of or together with this Is. Examples of hot melt adhesives include EVA, adhesive rubber (elastomer), olefin, and polyester / polyamide types, which can be used without any particular limitation. As a joining means for joining the constituent members, means by material welding such as heat sealing or ultrasonic sealing can be used.

<Example of disposable swimsuit>
1-6 has shown the disposable swimsuit generally called a pants type. This disposable swimsuit has a front exterior body 12F constituting the front body F and a rear exterior body 12B constituting the rear body B, and an exterior so as to extend from the front exterior body 12F to the rear exterior body 12B through the crotch part. An interior body 200 attached to the bodies 12F and 12B, and both side portions of the front exterior body 12F and both side portions of the rear exterior body 12B are joined to form a side seal portion 12A. The openings formed by the front and rear end portions of the bodies 12F and 12B become waist openings WO through which the wearer's torso passes, and the lower edges of the exterior bodies 12F and 12B and the side edges of the interior body 200 on both sides in the width direction WD of the interior body 200 The part surrounded by each becomes a leg opening LO through which the leg passes. The interior body 200 is a portion that absorbs and holds excrement such as urine, and the exterior bodies 12F and 12B are portions that support the interior body 200 with respect to the wearer's body. Moreover, the code | symbol Y has shown the full length (length of the front-back direction LD from the edge of the waist opening WO of the front body F to the edge of the waist opening WO of the back body B) in the expansion | deployment state, and the code | symbol X is an expansion | deployment state. Shows the full width of the diaper.

  Further, the disposable swimsuit of the present embodiment includes a waist region T defined as a front-rear direction range (a front-rear direction range extending from the waist opening WO to the upper end of the leg opening LO) having the side seal portion 12A, and a portion that forms the leg opening LO. An intermediate region L defined as a front-rear direction range (between a front-rear direction region having the side seal portion 12A of the front body F and a front-rear direction region having the side seal portion 12A of the rear body B). The waistline region T can be divided into a “waist portion” W that conceptually forms the edge of the waist opening and a “waist lower portion” U that is a lower portion than this. Usually, in the case where there is a boundary in the waistline region T in which the width direction expansion / contraction stress changes (for example, the thickness or elongation rate of the elastic expansion / contraction member changes), the waist opening WO side is closer to the waist opening than the boundary on the waist opening WO side. When there is no such boundary, the waist opening WO side becomes the waist portion W with respect to the absorbent element 50 or the interior body 200. These lengths in the front-rear direction vary depending on the size of the product and can be determined as appropriate. For example, the waist portion W may be 15 to 40 mm and the waist lower portion U may be 65 to 120 mm. On the other hand, both side edges of the intermediate region L are narrower (bundled) than the front and rear sides, and this is a part into which the wearer's leg is placed. As a result, the deployed disposable swimsuit has a generally hourglass shape as a whole.

(Interior body)
The interior body 200 can take any shape, but is rectangular in the illustrated form. As shown in FIGS. 3 to 5, the interior body 200 includes a top sheet 30 on the body side, a liquid-impermeable sheet 11, and an absorbent element 50 interposed therebetween. Yes, it is the main body that takes up the absorption function. Reference numeral 40 denotes an intermediate sheet (second sheet) provided between the top sheet 30 and the absorbent element 50 in order to quickly transfer the liquid that has passed through the top sheet 30 to the absorbent element 50. Shows a three-dimensional gather 60 that stands on the skin side and is provided on both sides of the interior body 200 in order to prevent excrement from leaking to both sides of the interior body 200.

  The interior body 200 can be fixed to the exterior bodies 12F and 12B by a joining means by material welding such as heat sealing or ultrasonic sealing, or a hot melt adhesive. In the illustrated embodiment, the inner surface of the exterior body 12F, 12B is fixed by the hot melt adhesive applied to the back surface of the interior body 200, that is, the back surface of the liquid-impermeable sheet 11 and the mounting portion 65 of the three-dimensional gather 60 in this case. Has been. The inner and outer fixing portions 201 for fixing the inner body 200 and the outer bodies 12F and 12B can be provided in almost the entire overlapping area, and are usually provided in a portion excluding both ends in the width direction of the inner body 200. Is preferred.

(Top sheet)
The top sheet 30 has a property of allowing liquid to pass through, and examples thereof include a porous or non-porous nonwoven fabric, a porous plastic sheet, and the like. Of these, the nonwoven fabric is not particularly limited as to what the raw fiber is. For example, synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers using two or more of them. Etc. can be illustrated. Furthermore, the nonwoven fabric may be manufactured by any processing. Examples of the processing method include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method. For example, if flexibility and drapeability are required, the spunbond method and spunlace method are preferable. If bulkiness and softness are required, the air-through method, point bond method, and thermal bond method are preferable processing methods. .

  The top sheet 30 may be composed of a single sheet or a laminated sheet obtained by bonding two or more sheets. Similarly, the top sheet 30 may be composed of one sheet or two or more sheets in the planar direction.

  In the case of providing the three-dimensional gather 60, both sides of the top sheet 30 pass between the liquid-impermeable sheet 11 and the three-dimensional gather 60 to reach the back side of the absorbent element 50, in order to prevent liquid penetration. It is preferable to join to the permeable sheet 11 and the three-dimensional gather 60.

  For the purpose of preventing displacement of the top sheet 30 with respect to the back side member, the top sheet 30 is preferably fixed to a member adjacent to the back side by a joining means by material welding such as heat sealing or ultrasonic sealing, or a hot melt adhesive. . In the illustrated embodiment, the top sheet 30 is fixed to the surface of the intermediate sheet 40 and the surface of the absorbent element 50 by a hot melt adhesive applied to the back surface thereof.

(Intermediate sheet)
An intermediate sheet (also referred to as “second sheet”) 40 having a higher liquid permeation rate than the top sheet 30 can be provided in order to quickly transfer the liquid that has permeated through the top sheet 30 to the absorber. This intermediate sheet 40 not only improves the absorption performance by the absorbent by quickly transferring the liquid to the absorbent body, but also prevents the “reversed” phenomenon of the absorbed liquid from the absorbent body, so that the top sheet 30 is always dried. It can be made into the state which carried out. The intermediate sheet 40 can be omitted.

Examples of the intermediate sheet 40 include the same materials as the top sheet 30, spunlace, spunbond, SMS, pulp nonwoven fabric, mixed sheet of pulp and rayon, point bond, or crepe paper. In particular, an air-through nonwoven fabric is preferable because it is bulky. It is preferable to use a core-sheath composite fiber for the air-through nonwoven fabric. In this case, the resin used for the core may be polypropylene (PP), but polyester (PET) having high rigidity is preferable. Basis weight is preferably ^{20~80g / m 2, 25~60g / m} 2 is more preferable. The thickness of the raw fiber of the nonwoven fabric is preferably 2.0 to 10 dtex. In order to make the nonwoven fabric bulky, it is also preferable to use an eccentric fiber, a hollow fiber, or an eccentric and hollow fiber that does not have a core at the center as the mixed fiber of all or part of the raw fiber.

  The intermediate sheet 40 in the illustrated form is arranged in the center shorter than the width of the absorbent element 50, but may be provided over the entire width. The length in the longitudinal direction of the intermediate sheet 40 may be the same as the length of the absorbent element 50 or may be within a short length range centered on the region that receives the liquid.

  The intermediate sheet 40 is preferably fixed to a member adjacent to the back side by a joining means by material welding such as heat sealing or ultrasonic sealing, or a hot melt adhesive for the purpose of preventing positional displacement with respect to the back side member. . In the illustrated form, the intermediate sheet 40 is fixed to the surface of the absorbent element 50 by a hot melt adhesive applied to the back surface thereof.

(Liquid impervious sheet)
The material of the liquid-impermeable sheet 11 is not particularly limited. For example, a plastic film made of an olefin resin such as polyethylene or polypropylene, a laminated nonwoven fabric provided with a plastic film on the surface of the nonwoven fabric, or a plastic film For example, a laminated sheet in which a nonwoven fabric or the like is laminated and bonded to each other can be exemplified. The liquid-impermeable sheet 11 is preferably made of a liquid-impermeable and moisture -permeable material that is preferably used from the viewpoint of preventing stuffiness. As a plastic film having moisture permeability, a microporous plastic film obtained by kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, forming a sheet, and then stretching in a uniaxial or biaxial direction. Is widely used. In addition, non-woven fabric using microdenier fibers, leakproof reinforcement by reducing the voids of the fibers by applying heat or pressure, and methods such as coating with a superabsorbent resin or hydrophobic resin or water repellent Thus, a sheet that is liquid-impermeable without using a plastic film can also be used as the liquid-impermeable sheet 11.

  The liquid-impermeable sheet 11 has a width that can be accommodated on the back side of the absorbent element 50 as shown in the drawing, and in order to improve leakage prevention, the liquid-impermeable sheet 11 wraps around both sides of the absorbent element 50 to form the side surface of the top sheet 30 of the absorbent element 50. It can also extend to both sides. The width of this extended portion is suitably about 5 to 20 mm on each of the left and right sides.

  Moreover, the excretion indicator from which a color changes with absorption of a liquid component can be provided in the inner side of the liquid-impermeable sheet | seat 11, especially the side surface of the absorption element 50. FIG.

(Three-dimensional gather)
The three-dimensional gather 60 is a belt-like member that extends over the entire front-rear direction along both side portions of the interior body 200, blocks excrement that travels in the lateral direction along the top sheet 30, and prevents side leakage. Is provided. The three-dimensional gather 60 of the present embodiment is provided so as to stand up from the side portion of the interior body 200, the base side portion rises obliquely toward the center in the width direction, and the tip side portion from the intermediate portion has a width. It stands up diagonally outward in the direction.

  More specifically, the three-dimensional gather 60 folds the belt-shaped gather sheet 62 having a length equal to the length in the front-rear direction of the interior body 200 in the width direction and folds it into two. In addition, a plurality of elongated gather elastic elastic members 63 are fixed along the longitudinal direction at intervals in the width direction. A base end portion (an end portion on the side opposite to the sheet folding portion in the width direction) located on the opposite side to the front end portion of the three-dimensional gather 60 is an attachment portion 65 fixed to the back surface of the side edge portion of the interior body 200. A portion other than the attachment portion 65 is a protruding portion 66 (a portion on the folded portion side) protruding from the attachment portion 65. The projecting portion 66 includes a base side portion that extends toward the center in the width direction, and a tip side portion that is folded back outward in the width direction from the tip of the base side portion. This form is a surface contact type three-dimensional gather, but a line contact type three-dimensional gather (not shown) that is not folded outward in the width direction can also be employed. And while the front-and-rear direction both ends of the protrusion part 66 are set as the fallen part 67 fixed with respect to the side part surface of the top sheet 30 in the lying state, the front-rear direction intermediate part located between these is not fixed. The gather elastic elastic member 63 along the front-rear direction is fixed to the free portion 68 in an extended state.

  In the free portion 68 of the three-dimensional gather 60, hot melt adhesives and heat seals and super seals by various coating methods are used to bond the inner layer and the outer layer of the gather sheet 62 and to fix the gather elastic elastic member 63 sandwiched therebetween. At least one of fixing means by material welding such as a sonic seal can be used. Since the flexibility is lost when the entire inner layer and outer layer of the gather sheet 62 are bonded together, it is preferable that the portions other than the bonding portion of the gather elastic elastic member 63 are not bonded or weakly bonded. In the illustrated embodiment, a hot melt adhesive is applied only to the outer peripheral surface of the gather elastic stretchable member 63 by an application means such as a comb gun or a sure wrap nozzle, and is sandwiched between the inner layer and the outer layer of the gather sheet 62, thereby collecting the gather elastic stretch. A structure in which the elongated elastic elastic member is fixed to the inner layer and the outer layer of the gather sheet 62 and the inner layer and the outer layer of the gather sheet 62 are fixed only by the hot melt adhesive applied to the outer peripheral surface of the member 63. It has become.

  Further, for fixing the waterproof film 64 incorporated in the three-dimensional gather 60 and the gather sheet 62 and fixing the lying portion 67 to the side surface of the interior body 200, a hot melt adhesive by various application methods, heat sealing, At least one of means by material welding such as an ultrasonic seal can be used. In the illustrated embodiment, slot application of hot melt adhesive is used for fixing the waterproof film 64. In addition, the fixed portion 67 in the illustrated form is combined with a hot melt adhesive and a material welding means, but these can be fixed only with one of the means.

The gather sheet 62 is made of a spunbond nonwoven fabric (SS, SSS, etc.), an SMS nonwoven fabric (SMS, SSMMS, etc.), a melt-blown nonwoven fabric with excellent uniformity and concealment, and water repellent with silicone if necessary. A treated product can be suitably used, and the fiber basis weight is preferably about 10 to 30 g / m ² . As the elongated elastic elastic member 63, rubber thread or the like can be used. When spandex thread rubber is used, the thickness is preferably 470 to 1240 dtex, more preferably 620 to 940 dtex. The elongation rate at the time of fixation is preferably 150 to 350%, more preferably 200 to 300%. The term “elongation rate” means a value when the natural length is 100%. Further, as shown in the drawing, a waterproof film 64 can be interposed between the gather sheets folded in two.

  2-6 are preferable and, as for the number of the elongate elastic expansion-contraction members 63 provided in the free part of the three-dimensional gather 60, 3-5 are more preferable. The arrangement interval 60d is suitably 3 to 10 mm. If comprised in this way, in the range which has arrange | positioned the elongate elastic expansion-contraction member 63, it will become easy to contact | abut with respect to skin. The elongated elastic elastic member 63 may be disposed not only at the distal end side but also at the base side.

  The fixing target of the attachment portion 65 of the three-dimensional gather 60 can be an appropriate member such as the top sheet 30, the liquid-impermeable sheet 11, the absorbent element 50 in the interior body 200.

  In the three-dimensional gather 60 thus configured, the contraction force of the elongated elastic elastic member 63 acts so that both ends in the front-rear direction are brought close to each other, but the both ends in the front-rear direction of the protruding portion 66 are fixed so as not to stand up. On the other hand, since they are non-fixed free portions, only the free portions stand so as to abut on the body side as indicated by arrows in FIG. In particular, when the attachment portion 65 is positioned on the back side of the interior body 200, the three-dimensional gather 60 stands up so as to open outward in the width direction in the crotch portion and the vicinity thereof. As a result, the fit is improved.

  The dimensions of the three-dimensional gather 60 can be determined as appropriate, but in the case of an infant paper diaper, for example, as shown in FIG. 3, the standing height of the three-dimensional gather 60 (the length in the width direction of the protruding portion 66 in the unfolded state) W6 is It is preferably 15 to 60 mm, particularly 20 to 40 mm. In addition, the distance W3 between the folds located on the innermost side in a state where the three-dimensional gather 60 is folded flat so as to be parallel to the surface of the top sheet 30 is preferably 60 to 190 mm, particularly preferably 70 to 140 mm.

  Note that, unlike the illustrated embodiment, the three-dimensional gathers can be provided in double (two rows) on the left and right sides of the interior body 200.

(Absorption element)
The absorbent element 50 includes a superabsorbent body 56 containing a superabsorbent polymer and a low absorbent body 57 made of a fiber assembly not containing a superabsorbent polymer, arranged adjacent to both the front and back sides. ing. Therefore, in this interior body 200, the members that cover the front side of the high absorbent body 56 (in this embodiment, the top sheet 30, the intermediate sheet 40, the upper low absorbent body 57, etc.) serve as the front side layer 210 of the present invention. A member that covers the back side (in this embodiment, the lower low-absorber 57, the liquid-impermeable sheet 11, the crotch cover sheet 12M, and the like) is the back-side layer 220 of the present invention. As long as the superabsorbent body 56 can be extracted from between the front side layer 210 and the back side layer 220, it may be partially or totally weakly joined to the front side layer 210 and the back side layer 220, but not entirely joined. It is desirable.

(High absorber)
The superabsorbent 56 includes a superabsorbent polymer, and the structure thereof is not particularly limited as long as it can be pulled out without being broken from a take-out port described later. For example, a highly assembled fiber assembly such as a nonwoven fabric. A superabsorbent polymer in the form of particles or a superabsorbent polymer adhered to the surface of the fiber, or a superabsorbent nonwoven fabric made of a fibrous superabsorbent polymer. It can be used suitably.

  As shown in FIGS. 17 and 18, the superabsorbent 56 using the superabsorbent polymer particles includes a first sheet 71 located on the front side, a second sheet 72 disposed on the back side, A large number of cells 77 surrounded by the joining portion 74 of the first sheet 71 and the second sheet 72 and not joined to the first sheet 71 and the second sheet 72, and a high absorption contained in the cell 77 What has the granular material containing the conductive polymer particle 73 can be used suitably. Since the sheet-like superabsorbent body 56 can be made thin, light, and flexible, there is an advantage that it is easy to remove and that the wearing feeling of the disposable swimsuit is not easily impaired even before the removal. In this sheet-like superabsorbent body 56, the portion constituting each cell 77 in the front side sheet 71 in order to facilitate the arrangement of the superabsorbent polymer particles 73 during production and to secure the volume after absorption and expansion. Is preferably formed with a recess 71c that is recessed from the back side to the front side, but may not be formed. Further, the joint 74 of the sheet-like superabsorbent body 56 includes a strong joint that does not peel due to the expansion force of the superabsorbent polymer particles in the cell adjacent to the joint, and a cell in the cell adjacent to the joint. You may have the weak junction part which can peel according to the expansion | swelling force of a superabsorbent polymer particle. For example, as shown in FIG. 17, the planar region of the superabsorbent body 56 surrounds the plurality of cells 77 by the strong joint portions 74 a that do not peel off due to the expansion force of the superabsorbent polymer particles 73 in the adjacent cells 77. It is one preferable mode that the joint portion 74 that is divided into the most magnified sections 77G and is located inside each of the most magnified sections 77G is a weak joint portion 74b. In this case, all the weak junctions 74b in the largest expansion section 77G are peeled off by the absorption expansion pressure of the superabsorbent polymer particles 73 in the cell 77, and one cell 77 covering the entire largest expansion section 77G is formed. After that, since the strong joint 74a surrounding the most enlarged section 77G does not peel due to the absorption expansion pressure of the superabsorbent polymer particles 73 in the most enlarged section 77G, the gelled product of the absorbed and expanded superabsorbent polymer particles 73 is formed. It is difficult to move and gather at low places such as the crotch area and deteriorate the feeling of wearing.

  Superabsorbent polymer particles include “powder” in addition to “particles”. As the superabsorbent polymer particles 54, those used for this kind of disposable swimsuit can be used as they are, for example, sieved with a standard sieve (JIS Z8801-1: 2006) of 500 μm (shaking for 5 minutes). The proportion of particles remaining on the top is preferably 30% by weight or less, and the proportion of particles remaining on the screen by sieving (shaking for 5 minutes) using a 180 μm standard sieve (JIS Z8801-1: 2006) 60% by weight or more is desirable.

  The material of the superabsorbent polymer can be used without any particular limitation, but those having a water absorption of 40 g / g or more are suitable. Examples of superabsorbent polymers include starch, cellulose, and synthetic polymers. Starch-acrylic acid (salt) graft copolymer, starch-acrylonitrile copolymer saponified product, sodium carboxymethylcellulose cross-linked product And acrylic acid (salt) polymers can be used.

  As the superabsorbent polymer, a polymer having a water absorption rate of 70 seconds or less, particularly 40 seconds or less is preferably used. If the water absorption speed is too slow, the liquid supplied into the high absorbent 56 is liable to cause a so-called reverse return that returns to the outside of the high absorbent 56.

  As the superabsorbent polymer, a polymer having a gel strength of 1000 Pa or more is preferably used. Thereby, even if it is a case where it is set as the bulky high absorber 56, the stickiness after liquid absorption can be suppressed effectively.

The basis weight of the superabsorbent polymer can be appropriately determined according to the amount of absorption required for the use of the superabsorbent body 56. Therefore, although it cannot be said unconditionally, it can be set to 50 to 350 g / m ² . If the amount of polymer is less than 50 g / m ^2, it is difficult to secure the absorption amount. When it exceeds 350 g / m ² , the effect is saturated.

  The superabsorbent body 56 has a rectangular shape as shown in the figure, and has a front end portion, a rear end portion, and a constricted portion having a narrower width than the front end portion and the rear end portion. You can also.

  Moreover, although the dimension of the superabsorbent body 56 can be appropriately determined as long as it extends to the front, rear, left and right of the urination port position, it preferably extends to the peripheral portion of the interior body 200 or the vicinity thereof in the front-rear direction and the width direction.

  The superabsorber 56 may be provided as a single layer as shown in the figure, or a plurality of layers may be provided.

(Low absorber)
As long as the low-absorbent body 57 is a fiber aggregate that does not contain a superabsorbent polymer, the fiber aggregate is not particularly limited, and various hydrophilic nonwoven fabrics, pulp piles, synthetic fiber tows (such as cellulose acetate) If necessary, a filament aggregate obtained by opening the fiber bundle) can be appropriately selected and used. In order to maintain high water absorption after removing the high absorbent 56, a pulp air laid nonwoven fabric is suitable. When using pulp, the basis weight of the low-absorbent body 57 can usually be about 50 to 200 g / m ² .

  The shape and size of the low absorbent body 57 may be the same as or different from the high absorbent body 56. For example, a part or all of the edge of the high absorber 56 protrudes from the periphery of the low absorber 57, or conversely, a part or all of the edge of the low absorber 57 protrudes from the periphery of the high absorber 56. You can also.

  Although not shown, the low absorbent body 57 may be omitted, and a disposable swimsuit having only the high absorbent body 56 may be provided. However, if the low absorber 57 is provided, even if the high absorber 56 is completely removed when entering the water, the absorption function of the low absorber 57 can be maintained, and the low absorber 57 is highly absorbent. Since it does not contain an ionic polymer, it is possible to prevent the absorbent body from expanding after entering water as in the case of conventional disposable swimsuits. The low absorber 57 can be provided on both the front and back sides of the high absorber 56 as shown in the figure, or can be provided only on either the front or back side.

(Exterior body)
The exterior bodies 12F and 12B include a front exterior body 12F that is a part constituting the front body F and a rear exterior body 12B that is a part constituting the rear body B. The front exterior body 12F and the rear exterior body 12B Are not continuous on the crotch side and are separated in the front-rear direction. This separation distance 12d can be about 150 to 250 mm. A part of the exposed portion of the back surface of the interior body 200 in the separated portion (for example, the entire portion in the front-rear direction of the portion exposed between the front exterior body 12F and the rear exterior body 12B, but does not extend to the front and rear ends of the interior body 200. In addition, it is desirable that the crotch portion cover sheet 12M made of a nonwoven fabric or the like is attached so as to cover the entire side of the interior body 200 so that both side edges in the width direction do not reach the both side edges of the interior body 200, but may be omitted. Moreover, as shown in FIG.7 and FIG.8, the exterior body 12 can also be made into the integrated body which continues between crotches from the front body F to the back body B. That is, the exterior bodies 12F and 12B that individually configure the front body F and the back body B correspond to the former form, and the exterior body 12 that integrally configures the front body F and the back body B corresponds to the latter form. .

  The exterior bodies 12 </ b> F and 12 </ b> B have a waistline portion that is a front-rear direction range corresponding to the waistline region T. In this embodiment, the front exterior body 12F does not have a portion corresponding to the intermediate region L, but the rear exterior body 12B has a collar cover portion 14 that extends from the waist region T to the intermediate region L side. is doing. Although not shown, the front exterior body 12F is also provided with a collar cover portion that extends from the waistline region T toward the intermediate region L, a configuration that does not provide a collar cover portion while providing a groin cover portion, and the front exterior body 12F and It is not necessary to provide a portion corresponding to the intermediate region L in both of the rear exterior bodies 12B. Further, in the illustrated embodiment, the lower edge of the buttock cover portion 14 is formed in a straight line shape along the width direction, similarly to the lower edge of the front exterior body 12F, but is positioned on the waist opening side toward the outer side in the width direction. It can also be a curve that becomes

  As shown in FIGS. 4, 5, 8, and 13, the exterior bodies 12 </ b> F and 12 </ b> B are obtained by joining the outer sheet layer 12 </ b> S and the inner sheet layer 12 </ b> H by a joining means such as hot melt adhesive or welding. is there. The sheet material for forming the outer sheet layer 12S and the sheet material for forming the inner sheet layer 12H are individual sheet materials as shown in FIGS. 5 and 8, and are common as shown in FIG. A single sheet material can also be used. That is, in the latter case, the inner sheet layer 12H and the outer sheet layer 12S are respectively formed by the inner part and the outer part of one sheet material folded at the edge of the waist opening WO (may be the crotch edge). Is done. In the former form, there is an advantage that the inner sheet layer 12H and the outer sheet layer 12S are not easily displaced, and the latter form has an advantage that the number of sheet materials is small. As shown in FIGS. 5, 8, and 10, the sheet material forming any one of the sheet layers (the outer sheet layer 12 </ b> S is illustrated) is folded inward at the edge of the waist opening WO. However, if the inner cover portion 12i is provided to cover the inner sides of the front and rear end portions of the interior body 200, the edges of the material at the front and rear end portions of the interior body 200 do not come into direct contact with the skin, and the touch is improved. As shown in FIG. 13, the inner cover portion 12i may not be provided.

The sheet material used for the outer sheet layer 12S and the inner sheet layer 12H can be used without any particular limitation, but is preferably a non-woven fabric. For example, synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, Nonwoven fabrics composed of mixed fibers, composite fibers or the like in which more than one species are used can be used. Furthermore, the nonwoven fabric may be manufactured by any processing. Examples of the processing method include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method. When using a nonwoven fabric, the basis weight is preferably about 10 to 30 g / m ² .

Moreover, it is preferable that the total fabric weight of the nonwoven fabric which comprises the exterior bodies 12F and 12B is about 20-60 g / m < ² >.

(Extensible / non-extensible area)
The exterior bodies 12F and 12B are provided with elongated elastic elastic members 15 to 19 such as rubber thread between the outer sheet layer 12S and the inner sheet layer 12H in order to improve the fit of the wearer around the torso. An expansion / contraction region is formed that elastically expands and contracts in the width direction as the member expands and contracts. In this stretchable region, in the natural length state, the outer sheet layer 12S and the inner sheet layer 12H are shrunk with the shrinkage of the elastic stretchable member to form wrinkles or wrinkles, and when stretched in the longitudinal direction of the elastic stretchable member, The outer sheet layer 12 </ b> S and the inner sheet layer 12 </ b> H can be stretched to a predetermined stretch rate that can be fully stretched. As the elongated elastic elastic members 15 to 19, synthetic rubber or natural rubber may be used.

  For bonding the outer sheet layer 12S and the inner sheet layer 12H in the exterior bodies 12F and 12B and fixing the elongated elastic members 15 to 19 sandwiched between them, hot melt adhesives and heat seals by various coating methods are used. At least one of fixing means by material welding such as an ultrasonic seal can be used. Since the flexibility is lost when the entire exterior bodies 12F and 12B are firmly fixed, it is preferable that the portions other than the adhesive portions of the elongated elastic elastic members 15 to 19 are not adhered or weakly adhered. In the illustrated embodiment, a hot melt adhesive is applied only to the outer peripheral surfaces of the elongated elastic elastic members 15 to 19 by an application means such as a comb gun or a sure wrap nozzle, and sandwiched between both sheet layers 12S and 12H, thereby forming the elongated shape. With only the hot melt adhesive applied to the outer peripheral surfaces of the elastic elastic members 15 to 19, fixing the elongated elastic elastic members 15 to 19 to both the sheet layers 12S and 12H and fixing between the two sheet layers 12S and 12H It has a structure to do. The elastic elastic members 15 to 19 can be fixed to the outer sheet layer 12S and the inner sheet layer 12H only at both ends in the expansion / contraction direction in the expansion / contraction region.

More specifically, between the outer sheet layer 12S and the inner sheet layer 12H in the waist part W of the exterior bodies 12F and 12B, a plurality of waist elastic elastic members 17 are vertically spaced so as to be continuous over the entire width direction. It is installed with a gap. Moreover, about the 1 or several arrange | positioned by the area | region adjacent to the waist lower part U among the waist part elastic elastic members 17, you may overlap with the interior body 200 or the width direction which overlaps with the interior body 200 You may each provide in the width direction both sides except a center part. As the waist resilient and elastic members 17, the thickness 155～1880Dtex, particularly about 470～1240Dtex (the case of synthetic rubber. Cross-sectional area in the case of natural rubber 0.05 to 1.5 mm ^2, in particular 0.1 to 1 the rubber thread .0mm about ²⁾ is preferably provided about 3 to 22 present at intervals of 4 to 12 mm, which according to the width direction of elongation of the waist portion W 150 to 400%, especially at about 220 to 320 percent Preferably there is. Further, the waist portion W does not need to use the waist elastic elastic member 17 having the same thickness in all of the front and rear directions or have the same elongation rate. For example, the elastic elastic member 17 at the upper portion and the lower portion of the waist portion W. You may make it differ in the thickness and elongation rate of.

  In addition, a plurality of waist lower elastic elastic members 15 and 19 made of an elongated elastic elastic member are vertically spaced between the outer sheet layer 12S and the inner sheet layer 12H in the waist lower part U of the exterior bodies 12F and 12B. It is installed with a gap.

The waist lower elastic elastic members 15 and 19 have a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber. In the case of natural rubber, the cross-sectional area is 0.05 to 1.5 mm ² , particularly 0.1. the rubber thread ~1.0mm about ^2), 1 to 15 mm, particularly preferably to dispose 5-30 present at intervals of 3 to 8 mm, which width direction of elongation of the waist lower portion U by the 200 to 350% In particular, it is preferably about 240 to 300%.

  Further, a plurality of cover elastic elastic members 16 made of an elongated elastic elastic member are vertically spaced between the outer sheet layer 12S and the inner sheet layer 12H in the buttock cover part 14 of the rear exterior body 12B. It is attached.

The cover elastic elastic member 16 has a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber. In the case of natural rubber, the cross-sectional area is 0.05 to 1.5 mm ² , particularly 0.1 to 1. the rubber thread 0mm about ^2), 5 to 40 mm, particularly preferably to dispose about 2 to 10 present at intervals of 5 to 20 mm, which width direction of elongation of the cover portion by 150 to 300%, in particular 180 to 260 % Is preferred.

  In the case where an inguinal cover is provided on the front exterior body 12F, a cover elastic member can be provided in the same manner.

  When the elastic elastic members 15, 16, and 19 are provided in the front-rear direction range having the absorbent body 56, such as the waist lower part U and the buttock cover part 14 in the illustrated form, the width of the absorbent body 56 in part or all thereof. In order to prevent shrinkage in the direction, the middle in the width direction (preferably including the entire inner / outer fixing portion 201) including part or all of the portion overlapping the absorbent body 56 in the width direction is defined as the non-stretchable region A1, and its width The both sides in the direction are the stretchable area A2. Although it is preferable that the waist part W is made into the expansion-contraction area | region A2 over the whole width direction, you may provide the non-expansion-contraction area | region A1 in the width direction middle similarly to the waist lower part U.

  The stretchable region A2 and the non-stretchable region A1 include elastic stretchable members 15 to 17 and 19 between the inner sheet layer 12H and the outer sheet layer 12S in which the printing sheet 25 is fixed to the inner surface with hot melt adhesives H1 and H2. And elastic elastic members 15, 16 and 19 are fixed at least at both ends in the expansion / contraction direction in the expansion / contraction region A2 via a hot-melt adhesive, and not fixed in the region to be the non-expansion region A1, In such a region, the elastic elastic members 15, 16, 19 are cut by pressing and heating at one place in the middle of the width direction, or almost the entire elastic elastic members 15, 16, 19 are cut finely by pressing and heating. However, the non-stretchable region A1 can be constructed by killing the stretchability while leaving the stretchability in the stretchable region A2. In the former case, as shown in FIG. 4, the non-stretchable region A1 is a state in which the uncut elastic stretch members 15, 16, and 19 in the stretchable region A2 are continuously cut from the elastic stretch members 15, 16, and 19 to the natural length alone as the unnecessary elastic stretch members 18 In the latter case, although not shown, the remaining cutting portion continuous from the elastic elastic members 15, 16, and 19 in the elastic region A2, and both of the elastic regions A2 are left. A cut piece of the elastic elastic member that is not continuous with the elastic elastic members 15, 16, and 19 remains between the outer sheet layer 12S and the inner sheet layer 12H in a state where the cut piece of the elastic elastic member is contracted to the natural length alone as an unnecessary elastic elastic member.

(Outlet)
The present disposable swimsuit is provided with an outlet 80 for taking out the high absorbent 56 from the disposable swimsuit, so that the entire super absorbent 56 can be removed. Therefore, even if it is a disposable swimsuit, even if urination occurs before entering the water or when it is not decided whether to enter the water just by playing at the waterside, it is absorbed firmly with the high absorbent body 56 like a normal disposable swimsuit In addition, all of the high absorbent body 56 can be removed when entering the water, and the expansion of the absorbent element 50 after entering the water can be prevented as in the conventional disposable swimsuit.

  As long as the high-absorbent body 56 can be taken out of the disposable swimsuit, the formation method of the take-out port 80 is not particularly limited, but the absorbent element 50 is built in the interior body 200 and the interior body 200 is attached to the exterior body 12. In the case of the above structure, the take-out port 80 can be formed by the following structure. That is, a non-joined part in which the front side layer 210 and the back side layer 220 are not joined is continuously formed from the waist side edge of the interior body 200 to the waist side edge of the high absorbent body 56 in the front part of the interior body 200. By doing so, the space 80 between the front side layer 210 and the back side layer 220 in this non-joined portion can be used as the outlet 80 of the high absorbent body 56 from the interior body 200. In the illustrated form, the take-out port 80 by the non-joining portion is provided only at the front portion of the interior body 200, but the take-out port 80 by the non-joining portion can be provided at the rear portion of the interior body 200 together with or instead of this. . Further, in the illustrated form, in the region from the waist side edge of the interior body 200 to the waist side edge of the superabsorbent body 56, the facing surfaces of the interior body front side layer 210 and the back side layer are respectively the top sheet 30 and the liquid impermeability. Since the top sheet 30 and the liquid-impermeable sheet 11 are not joined because they are formed by the sheet 11, the other material is not joined when the facing surface is another material. Needless to say.

  Here, as shown in FIG. 12 and FIG. 13, when the surface of the portion having the non-joined portion of the interior body 200 is not covered by the inner cover portion 12 i of the exterior body 12, the hand is put inside the disposable swimsuit. Then, the user can put his / her hand up to the end of the superabsorbent body 56 through the take-out port 80 formed by the non-joined portion, and can grab the superabsorbent body 56 as shown by an arrow in FIG. That is, this non-joining portion forms the take-out port 80.

  On the other hand, as shown in FIGS. 5 and 8, the inside of the part having the take-out port 80 of the interior body 200 is covered by the inner cover part 12 i made of the sheet layer of the exterior body 12, and the take-out port of the interior body 200 When the outer side of the portion having 80 is covered with the outer cover portion 12x made of the sheet layer of the exterior body 12, the outer cover portion 12x is joined to the interior body 200 and the inner cover portion 12i is attached to the surface of the interior body 200. On the other hand, it is one preferable form to be detachably joined (may be non-joined). In the illustrated embodiment, a hook material (male material) 81 of a mechanical fastener (surface fastener) is provided on the inner cover portion 12i, and a loop material (female material) 82 of a mechanical fastener is provided on the opposing portion. If the hook material 81 is detachable, such as a non-woven fabric, the loop material 82 can be omitted. In this case, as shown in FIG. 9, the inner cover portion 12 i is peeled off from the interior body 200 to expose the take-out port 80 of the interior body 200 on the surface, and a hand is placed inside the disposable swimsuit. A hand can be put to the edge part of the absorber 56, the high absorber 56 can be grasped and extracted. In other words, this form is a form in which the take-out port 80 is opened and closed by the inner cover portion 12i.

  The above form is a form in which the super absorbent body 56 is taken out by putting a hand inside the disposable swimsuit, but on the contrary, as shown in FIG. 10, the inner cover part 12i is joined to the exterior body 12 and the outer cover part. It is also preferable that the superabsorbent body 56 be taken out from the outside of the disposable swimsuit by detachably joining 12x to the facing surface of the interior body 200 (may be non-joined). That is, as shown in FIG. 11, the outer cover portion 12 x is peeled off from the inner body 200 to expose the outlet 80 of the inner body 200 on the surface, and the superabsorbent body 56 is exposed through the outlet 80. The hand can be pulled out to the end of the high-absorbent body 56 and can be pulled out. In other words, this form is a form in which the take-out port 80 is opened and closed by the outer cover part 12x, and the removal of the superabsorbent body 56 in the mounted state becomes easier.

  Moreover, as shown in FIG.14 and FIG.15, the taking-out port 80 can also be provided in the side part of the interior body 200. FIG. In the illustrated form, the side portion of the top sheet 30 is folded back to the back side of the absorbent element 50 at the side edge of the absorbent element 50, and this folded portion is the opposing surface (in the illustrated form, the back surface of the low absorbent body 57. The surface of the back side layer 220 may be detachably bonded. In the illustrated form, a hook material (male material) 81 of a mechanical fastener (surface fastener) is provided at the folded portion of the top sheet 30, and a loop material (female material) 82 of the mechanical fastener is provided at the opposed portion. If the hook material 81 is detachable, such as a non-woven material, the loop material 82 can be omitted. In this case, by inserting a hand between the top sheet 30 and the three-dimensional gather 60 at the side of the interior body 200 and peeling off the folded portion of the top sheet 30 from the facing surface, 80 can be formed, and a hand can be put to the side of the superabsorbent body 56 through the take-out port 80, and the superabsorbent body 56 can be grasped and extracted. In other words, this form is a form in which the take-out port 80 is opened and closed by opening and closing the side part of the top sheet 30 in the side part of the interior body 200. The longer the LD length in the front-rear direction of the take-out port 80, the better the take-out of the superabsorbent body 56, so it is desirable that the length is about 50 to 100% of the interval between the lying portions 67 before and after the three-dimensional gather 60.

(Other)
In the case where the low absorbers 57 are provided adjacent to both the front and back sides of the high absorber 56, as shown in FIG. 10, an outlet 80 is provided around the high absorber 56 and the low absorber 57, and When the end of the absorbent body 56 on the side of the take-out port 80 protrudes outside the peripheral edge of the low-absorber body 57, when the high-absorber body 56 is grasped through the take-out port 80, only the high-absorber body 56 is easily grasped. Since it can be extracted from 80, there is an advantage that removal of the superabsorbent 56 becomes easy.

  Further, when the low absorbent body 57 is provided adjacent to both the front and back sides of the high absorbent body 56 and the takeout port 80 is provided around the high absorbent body 56 and the low absorbent body 57, the high absorbent body 56 is embossed. The concave portion 91 (see FIGS. 14 and 15) or the through portion 92 (see FIG. 16) penetrating in the thickness direction on the surface of the high absorbent 56 facing the low absorbent 57 by providing a slit or the like. Is open, the contact area between the high absorber 56 and the low absorber 57 is reduced, and the resistance when the high absorber 56 is extracted from between the low absorbers 57 is reduced. There is an advantage that removal of 56 becomes easy. Although not shown, the contact area can be reduced by opening a recess or a penetrating portion penetrating in the thickness direction on the surface of the low absorber 57 facing the high absorber 56 instead of or together with this. These recesses 91 or penetrating portions 92 are preferably elongated shapes extending in the take-out direction XD (see FIG. 16), but can be formed in an appropriate shape such as a dot shape. Further, in the embodiment in which the through portion 92 is provided as in the embodiment shown in FIG. 16, it is preferable to ensure the strength without providing the through portion at the end on the take-out port side to be grasped by hand.

<Explanation of terms in the specification>
The following terms in the specification have the following meanings unless otherwise specified in the specification.

  The “front / rear (vertical) direction” means a direction connecting the ventral side (front side) and the back side (rear side), and the “width direction” means a direction (left / right direction) orthogonal to the front / rear direction. “Front side” means a side closer to the wearer's skin when the absorbent article is worn, and “back side” means a side far from the wearer's skin when the absorbent article is worn. “Surface” means the surface of the member that is closer to the wearer's skin when the absorbent article is worn, and “Back” is the one that is far from the wearer's skin when the absorbent article is worn. Means a face.

  “Elongation rate” means a value when the natural length is 100%.

  -"Gel strength" is measured as follows. Artificial urine (urea: 2 wt%, sodium chloride: 0.8 wt%, calcium chloride dihydrate: 0.03 wt%, magnesium sulfate heptahydrate: 0.08 wt%, and ion-exchanged water: 97.09 wt% 1.0 g of a superabsorbent polymer is added to 49.0 g of the mixture) and stirred with a stirrer. The produced gel is left in a constant temperature and humidity chamber of 40 ° C. × 60% RH for 3 hours and then returned to room temperature, and the gel strength is measured with a card meter (Curdmeter-MAX ME-500, manufactured by I.techno Engineering).

  ・ "Weight" is measured as follows. After the sample or test piece has been pre-dried, it is left in a test room or apparatus in a standard state (test location is temperature 20 ± 5 ° C., relative humidity 65% or less) to obtain a constant weight. Pre-drying refers to making a sample or test piece constant in an environment where the relative humidity is 10 to 25% and the temperature does not exceed 50 ° C. In addition, it is not necessary to perform preliminary drying about the fiber whose official moisture content is 0.0%. A sample with a size of 200 mm × 250 mm (± 2 mm) is cut out from the test piece in a constant weight using a rice-basis plate (200 mm × 250 mm, ± 2 mm). Measure the weight of the sample, calculate the weight per square meter, and use it as the basis weight.

-"Thickness" is automatically measured using an automatic thickness measuring instrument (KES-G5 handy compression measurement program) under the conditions of load: 0.098 N / cm ² and pressure area: 2 cm ² .

  -The amount of water absorption is measured according to JIS K7223-1996 "Test method for water absorption of superabsorbent resin".

  ・ The water absorption rate is the “time to end point” when JIS K7224-1996 “Test method for water absorption rate of superabsorbent resin” is performed using 2 g of superabsorbent polymer and 50 g of physiological saline. .

  ・ If there is no description about the environmental conditions in the test and measurement, the test and measurement shall be performed in a test room or equipment in the standard condition (test location is temperature 20 ± 5 ℃, relative humidity 65% or less). .

  The above example is an application example for a pants-type disposable swimsuit, but can be applied to other types as long as it is a disposable swimsuit.

  A1 ... non-stretchable region, A2 ... stretchable region, L ... intermediate region, LO ... leg opening, T ... waist circumference region, U ... waist lower portion, W ... waist portion, WO ... waist opening, WD ... width direction, LD DESCRIPTION OF SYMBOLS: Front-back direction, 11 ... Liquid impervious sheet, 12 ... Exterior body, 12A ... Side seal part, 12B ... Rear side exterior body, 12F ... Front side exterior body, 12H ... Inner sheet layer, 12S ... Outer sheet layer, 12i ... Inner cover part, 12x ... outer cover part, 14 ... saddle cover part, 18 ... unnecessary elastic elastic member, 201 ... inner / outer fixing part, 30 ... top sheet, 40 ... intermediate sheet, 50 ... absorbing element, 56 ... high absorber, 57 ... Low absorber, 60 ... Solid gather, 62 ... Gather sheet, 80 ... Extraction port, 200 ... Interior body, 210 ... Front side layer, 220 ... Back side layer.