JP5497362B2 - Pants-type disposable diaper - Google Patents

Description

  The present invention relates to a pants-type disposable diaper.

  There are three main types of disposable diapers for infants: tape type, pants type (see, for example, Patent Documents 1 to 3), and pad type. Generally, tape type is easy to use before starting high and high, and then Pants type is easy to use. The pad type is used for training purposes and auxiliary purposes such as increasing absorption. One of the reasons for such selection is the ease of changing diapers. For example, in the case of a pants type, the procedure is generally to tear both sides of the used diaper while wearing it, remove it from the body or pull it down from the leg and then pull it up to the crotch through the leg to a new diaper, This is suitable for exchanging in a high-motion child after high-high.

  However, the conventional pants-type disposable diaper is easier to replace than other types, but when putting on a new diaper, put the leg of the wearer who cannot move dexterously through the leg opening of the diaper. This is not easy, and in this respect, difficulty remains in the replacement work.

  In order to solve this problem, as described in Japanese Patent Application Laid-Open No. 2008-104874 (Patent Document 4), only one side of the joints (side seals) on both sides of the diaper width direction is a tape type. It has also been proposed to be fixed. With this configuration, it is not necessary to pass both feet when wearing, and only one leg is passed, so it is possible to pass the leg quickly and easily. Connection is required, but since this is only one, it can be done quickly and easily. Moreover, although it is one side, since it connects using a fastening means, fitting property can be improved now by adjusting the tightening degree of a trunk periphery according to a body shape.

  However, in this preceding example, the front and back bodies only overlap the body surface at the side of the fastening side, so the front body and back body are not integrated, and one body is the other There is a problem that the body is easily displaced and the good fit (follow-up) of the pants type is impaired in this respect. In the preceding example, it is necessary to grasp and match both the front body and the back body at the time of wearing, and it cannot be said that the fine adjustment work of tightening is easy.

JP-A-9-262250 Japanese Patent Laid-Open No. 11-299829 JP 2000-102560 A JP 2008-104874 A JP 2001-46427 A JP 2002-518095 gazette Special table 2003-532432 gazette

  Then, the main subject of this invention is providing the underpants type disposable diaper which is easy to let a leg pass and is easy to wear, although it is excellent in fitting property.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
Pants that have a front body and a back body that are continuous in the crotch, and that the front body and the back body are connected at both sides in the width direction, thereby forming a waist opening and a pair of left and right leg openings. In type disposable diapers,
At least on the side part of the front body and the side part of the back body in one side in the width direction, a connecting band that is fastened to the outer surface of the opposite body is provided, respectively.
These connection bands are fixed to the outer surface of the opposing body provided on the base end portion fixed to the side portion of the body, the extension portion extending from the base end portion, and the extension portion. A plurality of string-like portions connecting the distal end side and the proximal end side, which are provided in an intermediate portion between the fastening portion and the proximal end portion, which are possible, are arranged in parallel in the vertical direction; Each has an intersection with
The crossing part in one connecting band and the crossing part in the other connecting band are crossed so that one string-like part and the other string-like part are staggered in the vertical direction. The connection between the back and the back is composed,
In the connecting band of each body, the fastening portion is provided in a portion that protrudes outside the connecting band of the opposing body.
A pants-type disposable diaper characterized by that.

(Function and effect)
If the connection of the diaper side is constituted by the intersection of such connecting bands, the crossing position of both connecting bands can be slid, and the movement of the crossing position allows the length of the string-like portion to be changed. The length of the waist can be changed in length while maintaining the continuity of the portion. Thus, for example, when putting on a diaper, the leg opening diameter can be increased by moving the crossing position of the connecting band to the distal end side of the connecting band and lengthening the circumference of the trunk, thereby making it easier to pass the leg. After that, after the diaper is pulled up to the torso, the crossing position of the connecting band is moved to the base end side of the connecting band to shorten the size of the torso, and the fastening part of each connecting band is placed on the outer surface of the opposite body. By fastening, it can be fitted to fit around the wearer's torso. Moreover, since the plurality of string-like portions are alternately crossed in the vertical direction between the connection bands, the integrity of the connection portions by both connection bands is very high, and both sides are joined in general. A close fit (follow-up property) can be obtained with a disposable pants-type disposable diaper. Furthermore, since the crossing position of the connection bands can be moved by pulling or returning only the other connection band in a state in which one connection band is fixed, the fine adjustment operation of tightening is also easy.

<Invention of Claim 2>
Pants that have a front body and a back body that are continuous in the crotch, and that the front body and the back body are connected at both sides in the width direction, thereby forming a waist opening and a pair of left and right leg openings. In type disposable diapers,
Of the front body and the back body at one least the width direction, on the side of one of the body, together with the connecting bands are fastened to the outer surface of said one body is provided, on the side of the other body, Ba A thread insertion section,
The connection band includes a base end portion fixed to a side portion of the one body, an extension portion extending from the base end portion, and an outer surface of the one body provided in the extension portion. A plurality of fastening portions that can be fastened and a plurality of string-like portions that are provided in an intermediate portion between the fastening portion and the base end portion and connect the front end side and the base end side in the vertical direction. And an intersecting portion that is
The band insertion portion includes a base end portion fixed to the side portion of the other body, an extension portion extending from the base end portion, and a distal end side and a proximal end side provided in the extension portion A string-like portion connecting the two and a plurality of crossed portions arranged in parallel in the vertical direction,
The crossing portion in the connecting band and the crossing portion in the band insertion portion are crossed so that the string-like portion of the connection band and the string-like portion of the band insertion portion are staggered in the vertical direction. Connection of the front body and the back body is configured by the intersection of the parts,
The fastening portion is provided in a portion that protrudes outside the band insertion portion in the connection band,
A pants-type disposable diaper characterized by that.

(Function and effect)
By constructing the diaper side connection by crossing the connecting band and the band insertion part, the size of the waistline can be changed in length while maintaining the continuity of the waistline part by the sliding movement of the crossing position. Etc. are the same as the combination of the above-mentioned connecting bands, and basically have the same advantages. The difference is that the connecting band with the fastening part is only one of the front and back, the tightening adjustment (shifting the crossing position) can be done just by pulling or returning only one of the connecting bands, and it can be operated with one hand. The band is folded at the band insertion part and is fastened to the body having the connecting band, and if the connecting band is provided on the front body, the wearer can tighten and wear it by himself.

<Invention of Claim 3>
The underpants type disposable diaper of Claim 1 or 2 with which the auxiliary | assistant fastening part which can be fastened to a diaper outer surface is provided in the surface on the same side as the said fastening part in the string-shaped part of the said connection band.

(Function and effect)
As described above, when the auxiliary fastening portion is provided in the string-like portion, the connecting portion is difficult to be displaced, and the integrity of the connecting portion is further increased. In particular, in the case of a symmetrical structure, even if a misalignment occurs in the connecting portion, the right and left are shifted so as to balance each other, and it is difficult to cause a sense of incongruity, whereas in the asymmetrical structure, one side is joined so as not to be displaced. Since only the other side portion is displaced, if this occurs, the mounting balance is lost, which causes a significant sense of incongruity. Therefore, the auxiliary fastening portion is suitable for such a non-target structure.

<Invention of Claim 4>
The pants-type disposable diaper according to any one of claims 1 to 3, wherein the string-like portion is formed of a stretchable nonwoven fabric.

(Function and effect)
When the string-like portion is made of a stretchable nonwoven fabric that elastically expands and contracts in this way, the fit is further improved with a simple structure.

<Invention of Claim 5>
The said fastening part is formed with the male material of a hook_and_loop | surface fastener, The site | part to which the said fastening part is fastened in the outer surface of the said diaper is formed with the nonwoven fabric which the said hook material engages. The pants type disposable diaper of any one of -4.

(Function and effect)
Fastening with the connecting band is preferable because the form formed by the male material of the hook-and-loop fastener and the nonwoven fabric constituting the outer surface of the diaper is simple and inexpensive.

  As described above, according to the present invention, there are advantages such as a pant-type disposable diaper that is easy to pass through and easy to wear while having excellent fit.

It is a top view in the state where a diaper was developed showing an inner surface of a pants type disposable diaper in a state where a connection band has not been connected. It is a top view in the state where a diaper was developed showing an outer surface of a pants type disposable diaper in a state where a connection band is unconnected. FIG. 3 is a 3-3 cross-sectional view of FIG. 1. FIG. 4 is a sectional view taken along the line 4-4 in FIG. 1. FIG. 5 is a sectional view taken along line 5-5 in FIG. 1. It is an exploded view of a connecting band. It is sectional drawing which shows only the principal part of a pants type disposable diaper. It is a schematic perspective view of the underpants type disposable diaper of the state which loosened the connection band. It is a schematic perspective view of the underpants type disposable diaper of the state which fastened and fastened the connecting band. It is a disassembled assembly drawing of the connection band of another form, and a band insertion part. It is a schematic perspective view of the state which loosened the connection band of other forms. It is a schematic perspective view of the state which fastened and fastened the connection band of other forms. Furthermore, it is sectional drawing of the connection band of another form.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
<First form>
1 to 9 show an example 100 of a pants-type disposable diaper. The pants-type disposable diaper 100 includes an exterior sheet 12 that forms the outer surface (back surface) of the product, and an interior body 200 that is attached to the inner surface of the exterior sheet. The interior body 200 is a part that absorbs and holds excrement such as urine, and the exterior sheet 12 is a part that is worn by the wearer. In addition, the dot pattern part in sectional drawing has shown the junction part which joins each structural member, and is formed by solid, beads, curtains, summits, spiral application, etc., such as a hot-melt-adhesive. The “front / rear (vertical) direction” means the direction connecting the ventral side (front side) and the back side (rear side), and the “width direction” means the direction (left / right direction) orthogonal to the front / rear direction, “Up and down direction” means a state in which the diaper 100 is worn, that is, a direction orthogonal to the waistline direction when the diaper 100 is folded in two at the crotch so that both sides of the front body and the back of the diaper 100 overlap each other. In other words, it means the direction connecting the waist opening WO side and the crotch side.

(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 surface sheet 30 on the body side, a liquid-impermeable back sheet 11, and an absorbent element 50 interposed therebetween. 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 barrier cuffs 60 that stand on the body side and are provided on both sides of the interior body 200 in order to prevent excrement from leaking to both sides of the interior body 200.

(Surface sheet)
The top sheet 30 has a property of transmitting liquid, 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. .

  Further, the top sheet 30 may be composed of one sheet or may be composed of 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.

  When the barrier cuff 60 is provided, both sides of the top sheet 30 pass between the liquid-impervious back sheet 11 and the barrier cuff 60 to the back side of the absorbent element 50 to prevent the penetration of the liquid. It is preferable to adhere to the liquid-impermeable back sheet 11 and the barrier cuff 60 with a hot melt adhesive or the like.

(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 to quickly transfer the liquid that has passed through the top sheet 30 to the absorber. This intermediate sheet 40 not only improves the absorption performance of 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 material 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 2.2 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 disposed in the center shorter than the width of the absorber 56, but may be provided over the entire width. The length of the intermediate sheet 40 in the longitudinal direction may be the same as the length of the absorbent body 56 or may be within a short length range centered on the region that receives the liquid.

(Impermeable liquid back sheet)
The material of the liquid-impermeable back 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 in which a plastic film is provided on the surface of the nonwoven fabric, or plastic Examples thereof include a laminated sheet in which a nonwoven fabric or the like is laminated on a film and joined. For the liquid-impermeable back sheet 11, it is preferable to use a liquid-impervious and moisture-permeable material that has been preferred in recent years 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 micro-denier fibers, leakproof reinforcement by reducing the voids of the fibers by applying heat or pressure, and methods such as applying a superabsorbent resin or hydrophobic resin or water repellent Accordingly, a sheet that is liquid-impermeable without using a plastic film can also be used as the liquid-impermeable back sheet 11.

  The liquid-impermeable back sheet 11 can extend to both sides of the side surface 30 of the absorbent element 50 by wrapping around both sides of the absorbent element 50 in order to improve leakage resistance. 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 by absorption of a liquid part can be provided in the inner side of the liquid-impermeable back sheet 11, especially the absorber 56 side surface.

(Barrier cuffs)
The barrier cuff 60 is a belt-like member that extends over the entire front and rear direction along both side portions of the interior body 200, blocks urine and soft stool that move laterally along the top sheet 30, and prevents side leakage. It is provided for this purpose. The barrier cuff 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 stands up 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 barrier cuff 60 is formed by folding a belt-like barrier sheet 62 having a length equal to the length in the front-rear direction of the interior body 200 and folding it in the width direction. In addition, a plurality of elongated elastic elastic members 63 are fixed along the longitudinal direction at intervals in the width direction. An end of the barrier cuff 60 opposite to the folded portion in the width direction is an attachment portion 65 fixed to the back surface of the side edge of the interior body 200, and portions other than the attachment portion 65 protrude from the attachment portion 65. It is set as the protrusion part 66 (part by the side of a folding | turning part). Further, both end portions in the front-rear direction of the protruding portion 66 extend from the mounting portion 65 to the side surface of the topsheet 30 through the side portion of the interior body 200 and are hot-melted to the side surface of the topsheet 30. The base side portion is fixed to the front and rear fixing portion 67 by an adhesive or heat seal, and the tip side portion is folded back outward in the width direction from the tip of the base side portion and fixed to the base side portion. An intermediate part in the front-rear direction of the protruding part is an unfixed free part (inner free part), and an elongated elastic member 63 extending in the front-rear direction is fixed to the free part in an extended state.

The barrier 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 silicon as 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%. Further, as shown in the drawing, a waterproof film can be interposed between the barrier sheets folded in two.

  The number of the elongated elastic stretch members 63 provided in the free part of the barrier cuff 60 is preferably 2-6, and more preferably 3-5. 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 barrier cuff 60 can be an appropriate member such as the top sheet 30, the liquid-impermeable back sheet 11, the absorbent element 50 in the interior body 200.

  In the barrier cuff 60 thus configured, the contraction force of the elongated elastic elastic member 63 acts to bring the both ends in the front-rear direction close to each other, but the both ends of the projecting portion 66 are fixed so that they do not stand up. On the other hand, since they are non-fixed free portions, only the free portions stand up against the body side as shown in FIG. In particular, when the attachment portion 65 is located on the back surface side of the interior body 200, the barrier cuff 60 stands up so that the barrier cuff 60 opens outward in the width direction at and around the crotch portion. It comes in contact, and the fit is improved.

  The dimensions of the barrier cuff 60 can be appropriately determined. In the case of an infant paper diaper, for example, as shown in FIG. 7, the standing height of the barrier cuff 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, when the barrier cuff 60 is flatly folded so that the barrier cuff 60 is parallel to the surface of the top sheet 30, the distance W3 between the innermost folds is preferably 60 to 190 mm, particularly preferably 70 to 140 mm.

  Unlike the illustrated embodiment, double (two rows) of barrier cuffs can be provided on the left and right sides of the interior body 200.

(Absorption element)
The absorbent element 50 includes an absorbent body 56 and a packaging sheet 58 that wraps the entire absorbent body 56. The packaging sheet 58 can be omitted.

(Absorber)
The absorber 56 can be formed of an aggregate of fibers. As this fiber assembly, a filament assembly obtained by opening as necessary a synthetic fiber tow (fiber bundle) such as cellulose acetate, in addition to those obtained by stacking short fibers such as cotton-like pulp and synthetic fibers Can also be used. The fiber basis weight can be set to, for example, about 100 to 300 g / m ² when cotton-like pulp or short fibers are stacked, and in the case of a filament aggregate, for example, about 30 to 120 g / m ^2. Can do. The fineness in the case of a synthetic fiber is 1-16 dtex, for example, Preferably it is 1-10 dtex, More preferably, it is 1-5 dtex. In the case of a filament aggregate, the filament may be a non-crimped fiber, but is preferably a crimped fiber. The crimped degree of the crimped fiber can be, for example, 5 to 75, preferably 10 to 50, and more preferably about 15 to 50 per inch. Further, a crimped fiber that is uniformly crimped is often used. It is preferable to disperse and hold superabsorbent polymer particles in the absorber 56.

  Although the absorbent body 56 may be rectangular, as shown in FIG. 6, as shown in FIG. 6, the hourglass has a front end portion, a rear end portion, and a narrow portion narrower than the front end portion and the rear end portion. The shape is preferable because the fit of the absorbent body 56 and the barrier cuff 60 around the legs is improved.

  Moreover, although the dimension of an absorber can be determined suitably, it is preferable to extend to the peripheral part of the interior body, or its vicinity in the front-back direction and the width direction.

(Superabsorbent polymer particles)
The absorber 56 can contain superabsorbent polymer particles in a part or all thereof. Superabsorbent polymer particles include “powder” in addition to “particles”. As the particle diameter of the superabsorbent polymer particles, those used in this type of absorbent article can be used as they are, and those having a particle size of 1000 μm or less, particularly 150 to 400 μm are desirable. The material of the superabsorbent polymer particles can be used without any particular limitation, but those having a water absorption of 40 g / g or more are suitable. High-absorbent polymer particles include starch-based, cellulose-based, and synthetic polymer-based starch-acrylic acid (salt) graft copolymers, saponified starch-acrylonitrile copolymers, and sodium carboxymethylcellulose crosslinks. Or an acrylic acid (salt) polymer can be used. As the shape of the superabsorbent polymer particles, a commonly used granular material is suitable, but other shapes can also be used.

  As the superabsorbent polymer particles, those having a water absorption rate of 40 seconds or less are preferably used. When the water absorption speed exceeds 40 seconds, so-called reversion in which the liquid supplied into the absorber 56 returns to the outside of the absorber 56 is likely to occur.

  Further, as the superabsorbent polymer particles, those having a gel strength of 1000 Pa or more are preferably used. Thereby, even if it is a case where it is set as the bulky absorber 56, the sticky feeling after liquid absorption can be suppressed effectively.

The basis weight of the superabsorbent polymer particles can be appropriately determined according to the amount of absorption required for the use of the absorber 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.

  If necessary, the superabsorbent polymer particles can adjust the spraying density or spraying amount in the plane direction of the absorber 56. For example, it is possible to increase the application amount of the liquid excretion site as compared to other sites. When gender differences are taken into account, men can increase the front spray density (amount), while women can increase the center spray density (amount). In addition, a portion where no polymer exists locally (for example, in a spot shape) in the planar direction of the absorber 56 can also be provided.

(Packaging sheet)
When the packaging sheet 58 is used, as the material, tissue paper, particularly crepe paper, non-woven fabric, polylaminated non-woven fabric, a sheet with small holes, or the like can be used. However, it is desirable that the superabsorbent polymer particles be a sheet that does not escape. When a nonwoven fabric is used in place of the crepe paper, a hydrophilic SMS nonwoven fabric (SMS, SSMMS, etc.) is particularly suitable, and the material can be polypropylene, polyethylene / polypropylene composite material, or the like. The basis weight is preferably 5 to 40 g / m ² , particularly 10 to 30 g / m ² .

  The packaging form of the packaging sheet 58 can be determined as appropriate, but from the viewpoint of ease of manufacture and prevention of leakage of the superabsorbent polymer particles from the front and rear end edges, the cylinder is formed so as to surround the front and back surfaces and both side surfaces of the absorbent body 56. It is preferable that the front and rear edges of the absorbent body 56 are protruded from the front and back of the absorbent body 56, and the protruding portions are crushed in the front and back directions and joined by a joining means such as a hot melt adhesive.

(Exterior sheet)
The exterior sheet 12 has a portion that forms a front body F extending from the crotch portion to the ventral side, and a portion that forms a back body B extending from the crotch portion to the back side. As shown in FIG. 8, a body opening WO for passing the wearer's torso and a pair of left and right leg openings LO for passing the legs are formed. Characteristically, the side parts of the front body F and the back body B are joined to each other in the width direction to form a joined part 12A (hereinafter, this part is also referred to as a side seal). The sides of the back F and the back B are connected by the connecting band 80 of the present invention. In addition, the crotch portion means the front-rear direction center from the waist edge of the front body to the waist edge of the back body in the unfolded state, and the front part and the back part thereof are the front body F and the back body. B means each.

  The exterior sheet 12 includes a trunk periphery T that is defined as a longitudinal range extending from the trunk opening WO to the upper end of the leg opening LO, and an intermediate portion L that is defined as a longitudinal range of a portion that forms the leg opening LO. The waistline portion T can be conceptually divided into a “waist side end” W and a “waistline lower portion” U. 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 side end 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 portion L are bundled along the circumference of the wearer's leg, and this is a portion into which the wearer's leg is put. As a result, the exterior sheet 12 has a substantially hourglass shape as a whole. The degree of tightness of the exterior sheet 12 can be determined as appropriate, and, as shown in FIGS. 1 to 8, the narrowest part may be narrower than the width of the interior body 200 in order to obtain a clean appearance. Although it is preferable, the narrowest part may be determined so as to be equal to or larger than the width of the interior body 200.

  As shown in FIGS. 3 to 5, the exterior sheet 12 is formed by bonding two sheet base materials 12 </ b> S and 12 </ b> H with an adhesive such as a hot melt adhesive, and is located on the inner side. Although the base material 12H extends only to the edge of the waist opening WO, the outer sheet base material 12S wraps around the waist side edge of the inner sheet base material 12H and is folded back to the inside. 12r is extended so that it may coat | cover up to the waist side edge part of the interior body 200. FIG.

The sheet base materials 12S and 12H can be used without particular limitation as long as they are sheet base materials, but are preferably non-woven fabrics. 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. When using a nonwoven fabric, it is preferable that the basic weight shall be about 10-30 g / m < ² >.

Moreover, it is preferable that the total basis weight of the exterior sheet 12 is about 20 to 60 g / m ² so that the design of the printing sheet 25 to be described later can be satisfactorily viewed from the outer surface of the product through the exterior sheet 12. The total light transmittance specified in 7105 is preferably 40% or more, particularly 50% or more.

  The exterior sheet 12 is provided with elongate elastic members 15 to 19 such as thread rubber between the sheet base materials 12S and 12H at a predetermined elongation rate in order to improve the fit to the waistline. As the elongated elastic elastic members 15 to 19, synthetic rubber or natural rubber may be used. For bonding the sheet bases 12S and 12H of the exterior sheet 12 and fixing the elongated elastic members 15 to 19 sandwiched therebetween, hot melt bonding or heat sealing or ultrasonic bonding by various coating methods is used. Can do. If the entire exterior sheet 12 is firmly fixed, the texture of the sheet is impaired, which is not preferable. By combining these, it is preferable that the elongated elastic elastic members 15 to 19 are firmly bonded, and other portions are not bonded or bonded weakly.

More specifically, the width between the inner surface of the inner sheet base 12H and the outer surface of the folded portion 12r of the outer sheet base 12S at the waist end (upper end) W of the rear body B and the front body F is a width. The plurality of waist elastic elastic members 17 and 18 are fixed in a state of being stretched along the width direction at a predetermined stretch rate at intervals in the vertical direction so as to be continuous over the entire direction. In addition, one or more of the waist elastic elastic members 17 and 18 disposed in a region adjacent to the waistline lower portion U may overlap with the interior body 200 or overlap with the interior body 200. You may each provide in the width direction both sides except the width direction center part. As the waist resilient and elastic members 17 and 18, 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 the rubber thread of 1.0mm about ^2), 3 to 22 present approximately at intervals of 4 to 12 mm, an extension ratio 150% to 400%, preferably fixed in particular about 220-320%. The waist elastic elastic members 17 and 18 need not all have the same thickness and expansion rate. For example, the elastic elastic members have different thicknesses and expansion rates at the upper and lower portions of the waist end W. Also good.

  Further, between the outer side surface of the inner sheet base material 12H and the inner side surface of the outer sheet base material 12S in the lower waist portion U of the front body F and the back body B, except for the central portion in the width direction that overlaps the interior body 200. A plurality of elongated elastic elastic members 15 and 19 are vertically spaced along the width direction at a predetermined stretch rate so as to be continuous over the entire width direction at each of the upper side and both sides in the width direction. It is fixed in a stretched state.

The elongated elastic elastic members 15 and 19 of the lower waist part U 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 , the rubber thread 0.1~1.0mm about ^2), 1 to 15 mm, particularly 5 to 30 present approximately at intervals of 3 to 8 mm, to secure in extension ratio 200 to 350%, particularly about 240 to 300% Is preferred.

  Moreover, between the outer side surface of the inner sheet base material 12H and the inner side surface of the outer sheet base material 12S in the intermediate part L of the front body F and the back body B, except for the center part in the width direction overlapping the interior body 200, A state in which a plurality of elongated elastic elastic members 16 are stretched along the width direction at a predetermined stretch rate at intervals in the vertical direction so as to be continuous over the entire width direction at each part on both sides in the width direction. It is fixed with.

The elongated elastic elastic members 16 and 18 of the intermediate portion L have a thickness of 155 to 1880 dtex, particularly about 470 to 1240 dtex (in the case of synthetic rubber. In the case of natural rubber, a cross-sectional area of 0.05 to 1.5 mm ² , The thread rubber of about 0.1 to 1.0 mm ² ) is fixed at 5 to 40 mm, particularly about 2 to 10 at intervals of 5 to 20 mm, respectively, with an elongation of 150 to 300%, particularly 180 to 260%. preferable.

  In addition, as shown in the drawing, the elongated elastic elastic members 15, 19, 16, and 18 of the lower waist portion U and the intermediate portion L are provided on both sides in the width direction except for the central portion in the width direction that overlaps the interior body 200. It is preferable that the interior body 200 does not shrink more than necessary in the width direction, and it does not look bad and does not deteriorate absorbability. In this form, in addition to the form in which the elastic stretchable member exists only on both sides in the width direction, the elastic stretchable member exists from one side of the width direction to the other side across the interior body 200, but overlaps the interior body 200. A configuration is also included in which the elastic stretchable member is cut at the center in the width direction so that the stretchable force does not act (substantially equivalent to not providing the elastic stretchable member). Of course, the arrangement of the elongated elastic members 15, 19, 16, 18 is not limited to the above example, and the elongated elastic expansion / contraction of the lower waistline U so that the elastic force acts on the entire widthwise direction of the lower waistline U. Part or all of the members 15, 19, 16, and 18 can be provided from one side in the width direction to the other side across the interior body 200.

  In addition, when the elongated elastic elastic members 15 to 19 cross a printing sheet 25 described later, when a rubber containing titanium oxide is used as the elongated elastic elastic members 15 to 19, the content of titanium oxide is low ( It is preferable to use those not containing titanium oxide (for example, 2% or less).

(Post-processing tape)
A post-processing tape 70 (fixing means) can be provided at the center in the width direction on the outer surface of the rear body B of the exterior sheet 12. The post-processing tape 70 is for fixing the diaper 100 in a state where the diaper 100 is rolled or folded so that the topsheet 30 is on the inside and the front body F is on the inside. As shown in FIG. 5, in the general post-processing tape 70, a base end portion 71 is fixed to the outer surface of the exterior sheet 12 with an adhesive or the like, and a portion on the front end side of the base end portion 71 is tri-folded. (Folded in a Z-shaped cross section) or folded in half, and the portion between the folded portions is fixed (temporarily fixed) by the temporary fixing adhesive 72 so as to be peelable. Moreover, while having the knob | pick part 73 colored in opaque colors, such as white, in the front-end | tip part, the part except this knob | pick part 73 is transparent or semi-transparent, Through the transparent or semi-transparent part in this post-processing tape 70, A design to be described later is visible from the outer surface side of the post-processing tape 70. Although a specific structure can be appropriately configured, in the illustrated embodiment, the whole is formed by connecting a plurality of transparent or semi-transparent substrates in the longitudinal direction, and a colored tape 74 is bonded to the knob 73. Is adopted.

  At the time of disposal, the diaper 100 is rolled or folded so that the topsheet 30 is on the inside and the front body F is on the inside, and then the folded portion of the post-processing tape 70 is peeled off and spread, and the diaper 100 is rolled or folded. The diaper 100 is fixed with an adhesive so as to be wound from the rear body B of the diaper 100 to the outer surface on the opposite side over the waist opening WO. The post-processing tape 70 is particularly preferably a tri-fold shape that can be folded compactly when not in use and can be expanded into a long shape when in use.

  Fixing means such as the post-processing tape 70 may be provided on the front body F or on both the back body B and the front body F.

(Print sheet)
Between the liquid-impermeable back sheet 11 and the exterior sheet 12 (including the interlayer of the exterior sheet 12), a print sheet 25 that is designed by printing is provided. The exterior sheet 12 may be omitted, and the print sheet 25 may be exposed on the outer surface. The printed sheet 25 in the illustrated example has a smaller area than the body on which the printed sheet 25 is disposed, and is provided separately for the front body F and the back body B, but passes through the crotch from the front body F. It can also be provided so as to continue to the back body B integrally.

  Although the size and shape of the printing sheet 25 are not particularly limited, it is preferable to sufficiently increase the area in order to make the function sufficient. For example, the width of the printing sheet 25 is 50 to 120 of the width of the absorber 56. The length of the printing sheet 25 is preferably about 15 to 30% of the total length Y of the article on at least one side of the stomach side and the back side. Further, the shape of the print sheet 25 is preferably a rectangle as shown in the figure in that trim loss does not occur. However, the print sheet 25 has a geometric shape such as a circle, an ellipse, a triangle, a hexagon, or a shape along the periphery of the design. You may cut it.

As the sheet base material of the printing sheet 25, a plastic film, non-woven fabric, paper, or the like can be used, but a bulky material having high air permeability is preferable. When using a plastic film, it is desirable to have moisture permeability in order to prevent stuffiness. Nonwoven fabrics and paper are preferable because they have moisture permeability, and when performing design printing, it is preferable to use nonwoven fabrics that are smooth and easy to print, and papers that are high in strength and difficult to bleed ink. Particularly preferred are basis weight 15 to 35 g / m ² approximately, crepe paper having a thickness of about 0.1 to 0.3 mm (thin paper) and a basis weight 10 to 25 g / m ² approximately, a thickness of about 0.1 to 0.3 mm Non-woven fabrics (especially spunbond nonwoven fabrics and SMS nonwoven fabrics having a spunbond portion having a fineness of about 1.0 to 3.0 dtex). When crepe paper is used, the crepe rate is preferably about 5 to 20%, particularly about 5 to 15%. If the crepe rate is 20% or more, the amount of ink fixed increases, but blurring occurs and is not suitable for design printing. If the crepe rate is 5% or less, the amount of fixing is small because the ink hardly penetrates.

(Exterior sheet split structure)
In the above-described example, the front body F to the back body B are continuously covered with the integral exterior sheet 12, but the exterior sheet covers the stomach side of the wearer's waist and the back side The front end portion of the interior body is connected to the inner surface of the center portion in the width direction of the abdominal side exterior sheet with a hot melt adhesive or the like, and the center portion in the width direction of the back side exterior sheet. The rear end of the interior body is connected to the inner surface by a hot melt adhesive or the like, and the form in which the abdominal exterior sheet and the back exterior sheet are not continuous on the crotch side and are separated from each other may be adopted. it can. This separation distance can be about 150 to 250 mm. In this case, on the back surface of the liquid-impermeable back sheet in the interior body, so as to cover the entire back surface of the interior body, or so as to cover the entire portion exposed between the abdominal exterior sheet and the back exterior sheet, The crotch outer sheet can also be fixed. As the crotch outer sheet, the same material as that used for the outer sheet described above can be used. The crotch outer sheet also corresponds to the outer sheet of the present invention.

(Linked band)
Characteristically, a connecting band 80 is provided on the side of the front body F and the side of the back body B on one side in the width direction, and is fastened to the outer surface of the opposing body. The connection band 80 includes a base end portion 81 fixed to the side portion of the body and an extension portion 82 extending from the base end portion 81. The extension portion 82 has a body portion facing the tip portion. A fastening portion 83 that can be fastened is provided on the outer surface, and a string-like portion 84 that connects the distal end side and the proximal end side is vertically formed in an intermediate portion between the fastening portion 83 and the proximal end portion 81. A plurality of intersecting portions 85 are provided that are arranged in parallel at intervals in the direction. A portion extending to the distal end side of the fastening portion 83 is a knob portion 89.

  The longitudinal dimension of the connecting band 80 is preferably about the same as that of the side seal 12A, specifically about 20 to 30% of the total length Y of the diaper. The lateral length of the connecting band 80 is preferably about 20 to 40% of the width of the exterior sheet 12, and the length of the string-like portion 84 is preferably about 15 to 30% of the width of the exterior sheet 12. . Furthermore, the number of the string-like portions 84 is preferably about 3 to 6.

  The detailed structure of the connecting band 80 is shown in FIG. One of the connection bands 80 (in the illustrated example, (a) is the back body B) is mainly composed of a main body sheet 86 on the base end side and a fastening portion sheet 87 joined to the front end side thereof. Has been. The fixing between the members can be performed by an adhesive such as a hot melt adhesive, or by welding means such as heat sealing or ultrasonic sealing (the same applies to other joining, fixing, and bonding portions below).

  The main body sheet 86 and the fastening part sheet 87 can be made of an appropriate material, and a plastic sheet made of a polyolefin resin or the like, a non-woven fabric similar to the exterior sheet, or the like can be suitably used. In the illustrated example, the main body sheet 86 is formed with one or more rectangular slits 88 along the longitudinal direction of the band in the longitudinal direction, and portions on both sides in the longitudinal direction of the slits 88 form string-like portions 84. . Further, the fastening portion sheet 87 is provided with a fastening portion 83 on the inner surface on the tip side of the slit 88 over the entire length. The fastening portion 83 can be formed by a coating layer of an adhesive, but can also be formed by a male material (hook material) of a surface fastener (mechanical fastener). The fastening portion sheet 87 can be omitted. In this case, the fastening portion 83 may be provided directly at the distal end portion of the main body sheet 86, and the knob portion 89 can be formed by leaving the distal end edge.

  The other connecting band 80 ((b) is the front body F in the illustrated example) has a slit 88 formed on the main body sheet in order to allow cross-engagement of the following string-like portion 84 with respect to the one connecting band 80. The connection band 80 is the same as the connection band 80 except that an opening extends through one end of the opening 86 and the string-like portion 84 of the connection band 80 can be passed through the slit 88 from the opening. In this case, since the strength of the fixing portion at the opening side end of the slit 88 is weakened, the opening side end of the slit 88 is sandwiched between the sheet to be joined (in the illustrated example, the exterior sheet 12). It is preferable to attach the reinforcing sheet 81S to each other. In the illustrated example, the main body sheet 86 is open on the base end portion 81 side, but the front end portion side may be open. In this case, it is only necessary to sandwich the fixing portion at the opening side end of the slit 88 between the reinforcing sheet 81S and the fastening part sheet 87, but the fastening part 83 made of a sheet material is used as the reinforcing sheet 81S. preferable. If the reinforcing sheet 81S is provided in this way, the fixing strength of the end portion on the opening side of the slit 88 becomes sufficient, and both sides of the main body sheet 86 may be opened. Then, the string-like portion 84 can be formed simply by arranging a plurality of string-like members in parallel at intervals, and the members can be stacked in an appropriate order without passing the string-like portion 84 through the slit 88. In this case, it is possible to obtain the above-mentioned intersecting structure, so that the manufacturing is easy.

  And as shown in FIG. 8, the crossing part 85 in one connection band 80 and the crossing part 85 in the other connection band 80 are such that one string-like part 84 and the other string-like part 84 are staggered in the vertical direction. The connection between the front body F and the back body B is formed by the intersection of the connection bands 80, and the connection bands 80 of each body have come out of the connection bands 80 of the opposite bodies. The aforementioned fastening part 83 is provided in the part. In other words, each string-like portion 84 of the intersecting portion 85 in the connecting band 80 of each body is passed between the corresponding string-like portions 84 (slits 88) of the intersecting portion 85 in the connecting band 80 of the opposite body. Thus, the intersecting portion 85 of the linking band 80 of the garment and the intersecting portion 85 of the linking band 80 of the garment facing each other intersect in an engaged state. It is integrated at the part that protrudes to the outside of the connecting band 80 of the opposite body.

  If the connection of the diaper side is constituted by the intersection of such connection bands 80, the intersection position of both connection bands 80 can be slid, and the movement of the intersection position is equivalent to the length of the string-like portion 84. The waist circumference can be changed in length while maintaining the continuity of the waist circumference. Therefore, as shown in FIG. 8, when putting on a diaper, the diameter of the leg opening LO is increased by moving the crossing position of the connecting band 80 toward the distal end side of the connecting band 80 and lengthening the waist circumference. Therefore, the leg can be easily passed. Further, after the leg is passed through the leg opening LO of the diaper and the diaper is pulled up to the trunk, the crossing position of the coupling band 80 is moved to the base end side of the coupling band 80 as shown in FIG. By shortening the dimensions and fastening the fastening part 83 of each connecting band 80 to the outer surface of the opposite body, it is possible to fit and fit around the wearer's torso. Here, since the plurality of string-like portions 84 are alternately crossed in the vertical direction between the connection bands 80, the integration of the connection portions by both connection bands 80 is very high, and both side portions are joined. A close fit (follow-up property) can be obtained with a general pants-type disposable diaper. Furthermore, since the crossing position of the connection band 80 can be moved by simply pulling or returning only the other connection band 80 in a state where the one connection band 80 is fixed, the fine adjustment operation of tightening is also easy.

<Second form>
In the first form, both the front body F and the back body B are connecting bands 80, and it is necessary to fasten to the outer surfaces of the opposing body parts. Slightly complicated. Therefore, a second embodiment shown in FIGS. 10 to 12 is also proposed. That is, the second form is the outer surface of the one body part on the side part of either one of the front body F and the back body B on the one side in the width direction ((b) is the front body F in the illustrated example). And a band insertion portion 90 for inserting the connection band 80 is provided on the side of the other body ((a) is the back body B in the illustrated example). Is.

  The longitudinal dimension of the connecting band 80 is preferably about the same as that of the side seal 12A, specifically about 20 to 30% of the total length Y of the diaper. The lateral length of the connecting band 80 is preferably about 20 to 50% of the width of the exterior sheet 12, and the length of the string-like portion 84 is preferably about 15 to 40% of the width of the exterior sheet 12. . Furthermore, the number of the string-like portions 84 is preferably about 3 to 6.

  The lateral length of the band insertion portion 90 is preferably about 20 to 50 mm, and the length of the string-like portion 94 of the band insertion portion 90 is preferably about 5 to 20 mm. Furthermore, the number of the string-like portions 94 of the band insertion part 90 is one or more than the number of the string-like portions 84 of the connecting band 80.

  The connection band 80 is the same as the first embodiment except that the fastening portion 83 is formed on the outer surface. As will be described later, this difference is caused by being folded back by the band insertion portion 90 and fastened to the outer surface of the body having the connection band 80. On the other hand, the band insertion part 90 has a structure in which the fastening part 83 and the knob part are omitted from the connection band 80, and the base end part 91 fixed to the side part of the other body and the base end part 91 are extended. And an intersecting portion 95 formed by arranging a plurality of string-like portions 94 provided in the extending portion 92 to connect the distal end side and the proximal end side in the vertical direction. . Therefore, the main body sheet 96 having the same structure as the main body sheet 86 in the connection band 80 of the first embodiment can be formed.

  And as shown in FIG. 11, the crossing part 85 in the connection band 80 and the crossing part 95 in the band insertion part 90 are the string-like part 84 of the connection band 80 and the string-like part 94 of the band insertion part 90 in the vertical direction. The front body F and the back body B are connected by the intersection of the connection band 80 and the band insertion part 90, and the fastening part 83 of the connection band 80 is connected to the band insertion part 90. It is provided in the part which has come out to the outside. In other words, the string-like portions 84 of the intersecting portion 85 in the connecting band 80 are respectively passed between the corresponding string-like portions 94 (slits 98) of the intersecting portion 95 in the band insertion portion 90, whereby the connecting band 80. The crossing portion 85 and the crossing portion 95 of the band insertion portion 90 intersect with each other in an engaged state, and each string-like portion 84 of the connecting band 80 is integrated at a portion that has come out of the band insertion portion 90, Each string-like portion 94 of the band insertion portion 90 is integrated at a portion that protrudes to the outside of the connection band 80.

  When the connection of the diaper side is constituted by the intersection of such a connection band 80 and the band insertion part 90, as can be seen from the loosened state of the band in FIG. 11 and the state in which the band of FIG. The fact that the waist circumference dimension can be changed in length while maintaining the continuity of the waist circumference portion by sliding movement at the intersection position is the same as the first embodiment, and basically has the same advantages. The difference is that the connecting band 80 having the fastening portion 83 is only one of the front and rear, and the tightening adjustment (shifting the crossing position) can be performed simply by pulling or returning only one of the connecting bands 80, and can be operated with one hand. The connecting band 80 is folded back by the band insertion part 90 and is fastened to the body having the connecting band 80, and if the connecting band 80 is provided on the front body F, the wearer can tighten and wear it by himself. is there.

In the illustrated embodiment, the connection band 80 is provided on the front body F so that the non-wearer can tighten the connection band 80 by himself. However, in the case of an infant, it may be difficult to remove the connection band 80 without permission. Therefore, conversely, the connecting band 80 is provided on the back body B, the band insertion portion 90 is provided on the front body F, and the connecting band 80 is folded back to the back body B so as to be fixed to the outer surface of the back body B. You can also.
Others are the same as the first embodiment.

<Other forms>
(A) As shown in FIG. 13A, a modification of the first embodiment, and FIG. 13B, a modification of the second embodiment, the fastening portion 83 in the string-like portion 84 of the connecting band 80. If the auxiliary fastening portion 100 that can be fastened to the outer surface of the diaper is provided on the same side surface as that of the diaper, the connecting portion is difficult to be displaced, and the integrity of the connecting portion is further enhanced. In particular, in the left-right symmetric structure, even if a misalignment occurs in the connecting portion, the left and right are shifted so that a sense of incongruity is unlikely to occur, whereas in the asymmetric structure as in the first and second embodiments, The side parts on the side are joined so as not to be displaced, and only the side part on the other side is displaced, so that when this occurs, the mounting balance is disrupted, resulting in significant discomfort. Therefore, the auxiliary fastening part 100 is suitable for the case of the non-target structure as in the first and second embodiments.
The auxiliary fastening portion 100 can be formed of a male material such as a hook-and-loop fastener similarly to the fastening portion 83 described above, and adopts the same means as the fastening portion 83 described above, and is different from the fastening material 83 described above. Means can also be employed. It is also possible to employ means such as providing an elastomer resin or the like instead of the auxiliary fastening portion 100 and preventing the deviation by increasing the frictional resistance of the surface of the string-like portion 84 on the same side as the fastening portion 83. it can.
(B) The string-like portions 84 and 94 in the above example may be formed of a material that does not have stretchability, but it is simple when formed of at least a member having stretchability in the longitudinal direction, particularly a stretchable nonwoven fabric. It is preferable because the fit is further improved with a simple structure.
(C) In the above example, the cross connection structure of the present invention is adopted only on one side in the width direction, but the cross connection structure of the present invention can also be adopted on both sides in the width direction.

  The present invention can be used for a pants-type disposable diaper as in the above example.

  DESCRIPTION OF SYMBOLS 11 ... Liquid impervious back sheet, 12 ... Exterior sheet, 12r ... Folded part, 25 ... Print sheet, 200 ... Interior body, 30 ... Top sheet, 40 ... Intermediate sheet, 50 ... Absorbing element, 56 ... Absorber, 58 ... Packaging sheet, 60 ... Side barrier cuff, 62 ... Barrier sheet, 80 ... Connection band, 90 ... Band insertion part.

Claims (5)

Pants that have a front body and a back body that are continuous in the crotch, and that the front body and the back body are connected at both sides in the width direction, thereby forming a waist opening and a pair of left and right leg openings. In type disposable diapers,
At least on the side part of the front body and the side part of the back body in one side in the width direction, a connecting band that is fastened to the outer surface of the opposite body is provided, respectively.
These connection bands are fixed to the outer surface of the opposing body provided on the base end portion fixed to the side portion of the body, the extension portion extending from the base end portion, and the extension portion. A plurality of string-like portions connecting the distal end side and the proximal end side, which are provided in an intermediate portion between the fastening portion and the proximal end portion, which are possible, are arranged in parallel in the vertical direction; Each has an intersection with
The crossing part in one connecting band and the crossing part in the other connecting band are crossed so that one string-like part and the other string-like part are staggered in the vertical direction. The connection between the back and the back is composed,
In the connecting band of each body, the fastening portion is provided in a portion that protrudes outside the connecting band of the opposing body.
A pants-type disposable diaper characterized by that. Pants that have a front body and a back body that are continuous in the crotch, and that the front body and the back body are connected at both sides in the width direction, thereby forming a waist opening and a pair of left and right leg openings. In type disposable diapers,
Of the front body and the back body at one least the width direction, on the side of one of the body, together with the connecting bands are fastened to the outer surface of said one body is provided, on the side of the other body, Ba A thread insertion section,
The connection band includes a base end portion fixed to a side portion of the one body, an extension portion extending from the base end portion, and an outer surface of the one body provided in the extension portion. A plurality of fastening portions that can be fastened and a plurality of string-like portions that are provided in an intermediate portion between the fastening portion and the base end portion and connect the front end side and the base end side in the vertical direction. And an intersecting portion that is
The band insertion portion includes a base end portion fixed to the side portion of the other body, an extension portion extending from the base end portion, and a distal end side and a proximal end side provided in the extension portion A string-like portion connecting the two and a plurality of crossed portions arranged in parallel in the vertical direction,
The crossing portion in the connecting band and the crossing portion in the band insertion portion are crossed so that the string-like portion of the connection band and the string-like portion of the band insertion portion are staggered in the vertical direction. Connection of the front body and the back body is configured by the intersection of the parts,
The fastening portion is provided in a portion that protrudes outside the band insertion portion in the connection band,
A pants-type disposable diaper characterized by that.   The underpants type disposable diaper of Claim 1 or 2 with which the auxiliary | assistant fastening part which can be fastened to a diaper outer surface is provided in the surface on the same side as the said fastening part in the string-shaped part of the said connection band.   The pants-type disposable diaper according to any one of claims 1 to 3, wherein the string-like portion is formed of a stretchable nonwoven fabric.   The said fastening part is formed with the male material of a hook_and_loop | surface fastener, The site | part to which the said fastening part is fastened in the outer surface of the said diaper is formed with the nonwoven fabric which the said hook material engages. The pants type disposable diaper of any one of -4.

Images