JP5270318B2 - Deployable wearing articles - Google Patents

Description

  The present invention relates to a deployment-type wearing article, and more particularly, to a deployment-type wearing article of a type in which a front side and a back side are fastened with a fastening tape at the time of wearing.

  The unfoldable disposable diaper usually has a rear part along the back side, a front part along the abdomen side, and an intermediate part located in the crotch between the rear part and the front part. When this intermediate portion is worn along the crotch of an infant or the like, the back side flap is kept on the wearer's abdomen and is fixed to the outer surface of the front portion of the diaper by a fixing member. Accordingly, the diaper can be appropriately tightened around the waist and fixed so as not to slip off. As the fixing member, a fastening tape that enables mechanical joining that can be repeatedly fixed and peeled is widely used.

  The fastening tape generally has a planar mechanical fastener, and has, for example, a structure in which the fastener is attached to a flap portion of a diaper together with a base sheet. Examples of the mechanical fastener include minute hook-shaped protrusions that can be engaged with fibers and the like, and planar fasteners (male materials) having a large number of mushroom-like ones. On the other hand, the portion that receives the planar fastener at the front side of the ventral side may be a normal non-woven fabric, but for example, a landing having a loop-like or fluffy surface fiber structure so as to realize an effective hooking of the hook-like projection A tape (female material) or the like is used.

  For example, there is a fastening tape in which one end in the longitudinal direction of a planar mechanical fastener and a base sheet are fixed to the inner surface of the end edge portion of the main body sheet. Patent Document 1). The mechanical fastener is provided with a large number of mushroom-shaped micro hooks, and is a long rectangular planar fastener disposed in a direction extending from the main body sheet as a whole. Thereby, sufficient attachment strength of the fastening tape is realized, and the manufacturing cost can be reduced. In addition, as a similar Y-bond type, there is disclosed one in which a side edge portion of a diaper body is sandwiched between a flat-plate fastener having many T-shaped hooks and a backing material (see Patent Document 2). .

As another example, a fastening tape for fixing to a side flap is formed by bending at a predetermined angle obliquely downward from a side edge of the side flap, and the fixing portion to the side flap is formed in parallel to the diaper width direction. Is disclosed (Patent Document 3).
Furthermore, in Patent Document 4, the closure system creates a main tension line that fits into the wearer's low-motion zone, enhances dynamic fit, and effectively extends the side panel (side flap). I try not to slip down.

JP 2001-137280 A Japanese National Patent Publication No. 10-500326 JP 2002-209937 A Japanese National Patent Publication No. 8-510941

  In a deployable diaper having this type of fastening tape, the fastening tape is attached at right angles to the diaper side with respect to the longitudinal direction of the diaper, and is fastened in parallel to the width direction of the front body of the diaper. It is common to pull the tape and fix it. In this case, it may be difficult to achieve a good wearing state at the time of wearing, or a gap may be generated around the stomach due to the movement of the wearer or fluctuation of the waist circumference after wearing. This is because the body of an infant or the like is not a mere cylindrical shape, but seems to be monotonous and actually has a three-dimensionally extremely complicated shape. Specifically, there is a large tummy bulge on the front side of the infant's body, and it enters into the crotch part sandwiched between both thighs, while the back side is gently wrapped around the waist and then crotch There are cracks in the bottom of the butt, and there is a bulge of the butt that protrudes into two on both sides. In addition, when worn, the circumference of the abdomen varies greatly relative to the circumference of the leg, and the shape of the abdomen tends to collapse.

  For this reason, in actual fastening work, there are many cases where the fastening tape is attached obliquely downward by the mother's device. When wearing in this way, even if the upper part of the diaper is fixed without any gap along the body, a gap is formed on the lower side, that is, around the leg, and the diaper is displaced at the time of wearing, and the wearing is repeated. This is often seen.

  In the diaper disclosed in Patent Document 3, the tip knob portion (tape tab) of the fastening tape is bent and attached obliquely downward, but the force applied to the fixing portion of the tape with respect to the diaper main body is eventually the diaper. Acts parallel to the width direction. Accordingly, the tightening around the stomach is substantially the same as the conventional one in which the tip knob portion of the fastening tape is perpendicular to the side edge of the diaper body.

  In the diaper disclosed in Patent Document 4, when fixing the fastening portion of the fastening tape, that is, the tape tab, to the front body, taking into account the curve of the front body, there is a wide allowable range in which the tab can be fixed obliquely downward. Absent. Moreover, the elastic panel material which comprises a flap part (overhang | projection part) becomes a structure from which the up-and-down extension direction differs, and a structure is complicated. When the tape tab is pulled, if the extension direction of the upper and lower portions of the flap portion is simply different, the tape tab is extended and fixed in the parallel direction by the resultant force.

  In view of the above-mentioned points, the present invention provides a natural fastening tape without any special adjustments when a sheet-like fastening tape attached to a wearing article such as a deployable diaper is fastened and the article is worn. An object of the present invention is to provide an unfoldable wearing article that is inclined downward and acts in the direction of tightening the stomach, thereby realizing an ideal fit that matches the body shape of the wearer.

  The object of the present invention is a deployment-type wearing article having a ventral front part, a dorsal rear part, and a crotch intermediate part interposed between the two parts, A planar fastening tape composed of a planar fastener and a tape base material is attached to both side edges in the width direction of the back side rear part, and the planar fastener is located away from the side edge part. The tape base material intermediate part between the planar fastener and the side edge part is stretchable in the longitudinal direction outer part in the worn article unfolded state. This is achieved by an unfoldable wearing article that is made larger than the stretchability of the inner part in the longitudinal direction.

  The deployable wearing article of the present invention stretches and fastens the fastening tape attached thereto and wears the article, so that the fastening tape is naturally inclined downward without any special adjustment, Can be pulled in the direction to be tightened moderately, and a gap at that portion is less likely to occur. In addition, the leg circumference does not receive excessive tightening, and it fits the wearer's body shape and can be ideally worn.

Hereinafter, the unfoldable wearing article of the present invention will be described with reference to the drawings based on the unfoldable disposable diaper for infants as a preferred embodiment.
FIG. 1 is a perspective view showing a developed disposable diaper (Embodiment 1) provided with a planar fastening tape according to a preferred embodiment of the present invention in a form when it is generally worn. FIG. 2 is an enlarged partial front view of the region II shown in FIG. 1, showing a state in which the fastening tape of the disposable diaper is attached to the side flap as viewed from the engagement surface side of the surface fastener (see FIG. 3). This corresponds to the enlarged view of the region II shown, except that the members are not cut out in FIG. FIG. 2 shows the state before the surface fastener is unwound and the tape base material is bent and deformed.

  The planar fastening tape 1 in the unfolded diaper 10 according to the first embodiment is a pair of left and right two, and a non-stretchable sheet material (surface sheet 4) at the diaper rear portion R disposed on the back side of the wearer of the diaper 10. The rear sheet 3 and the side sheet 8) (refer to FIG. 3) are respectively disposed on side projecting portions (hereinafter referred to as side flaps) Sr. When the baby is to be worn by an infant or the like, the rear portion R is arranged on the back side of the wearer, and the diaper crotch center portion C is passed along the crotch, and the front portion F is applied to the lower abdomen of the wearer. At this time, the side flap Sr of the diaper rear portion R is passed from the back to the ventral side, and the side flap Sf of the ventral front portion F is covered with the dorsal side flap Sr. Then, the fastening tape 1 is pressed against the landing tape (fastener receiving portion) 6, and is mechanically joined to the surface of the landing tape 6 by the planar fastener 12 provided on the fastening tape 1. In this way, the wearer's waist is passed through the waist opening Wo of the diaper and the thigh is worn through the pair of leg openings Lo.

  After using the diaper, the fastening tape 1 can be peeled off from the landing tape 6 and the diaper can be unfolded from the rear side flap Sr to be removed from the infant or the like. In addition, the said side flap may be integrally comprised as a part of the said ventral front part F or the said back side rear part R like this embodiment, and is good also as another member.

  FIG. 3 is a plan view of the unfolded disposable diaper according to Embodiment 1 in the unfolded state. As shown in the figure, the deployable disposable diaper 10 according to the first embodiment includes a liquid permeable top sheet 4, a liquid impermeable back sheet 3, and a liquid retaining property interposed between both sheets 4 and 3. The absorber 5 is provided. Here, the surface sheet 4 side is the side that contacts the wearer's skin, and the back sheet 3 side is the outer surface side when worn. As the developed shape of the entire diaper, a substantially vertically long hourglass shape as shown in FIG. 3, that is, both longitudinal ends (abdominal side front portion F, back side rear portion R) are widened, and intermediate portion C It is a shape that can be wrapped.

  In the first embodiment, the front sheet 4 and the back sheet 3, the absorber 5 interposed between both sheets 4, 3, and the side sheets 8 are arranged on both sides of the skin contact surface side in the width direction above the top sheet 4. In addition, the unfoldable wearable article main body (diaper main body) 2 is constructed by assembling together with the elastic members 15, 16 and the like. And the fastening tape 1 is attached to the part (side edge part) of the side edge Se of a pair of back side flap Sr of this diaper main body 2 so that it may protrude partially from the said side edge Se in planar view, and it is a diaper for infants 10 is formed.

As shown in FIG. 3, the disposable diaper 10 has a string-like or string-like shape that forms a pair of upright leakage-proof cuffs extending in the longitudinal direction (Y direction) along both sides in the width direction of the absorbent body 5. A side sheet 8 made of a nonwoven fabric provided with an elastic member 15 is disposed on the surface (skin surface side) of the top sheet 4. Each side sheet 8 is fixed on the top sheet 4 over the longitudinal direction of the diaper between a position corresponding to the vicinity of the side edge of the absorbent body 5 and a thread-like or string-like elastic member 16 for forming leg gathers. . And the part which makes a standing-proof leak-proof cuff is not adhering to the surface sheet 4, and stands up in the free end (inner end) side of this leak-proof cuff substantially parallel to the diaper longitudinal direction in the diaper deployment state. Has been. The leak-proof cuff, which is a three-dimensional gather, stands up and abuts firmly on the skin, blocking the excretion to the outside and effectively preventing side leakage. Incidentally, k ₂ the free end position of the leak-barrier cuffs in FIG 3, k ₁ represents the proximal position, the side sheets 8 in the outer side of the position k ₁ is secured to the topsheet 4.

  In the first embodiment, as described above, the two left and right planar fastening tapes 1 are disposed on the dorsal overhang portion (side flap) Sr made of a non-stretchable sheet. The surface fastening tape 1 includes a front end knob portion 13 provided on the front end side thereof, a planar mechanical fastener (surface fastener) 12 provided on the inner side thereof, and the surface fastener 12 and side flaps. The tape base 11 is disposed between the Sr and the fixed portion is fixed to the side flap Sr. If the specific assembly structure example is demonstrated in the cross-sectional form illustrated in FIG. 4, the inner end part of the tape base material 11 will adhere to the back surface (opposite side to the skin side) of the back side flap Sr (fixing part). K) The tip knob portion 13 is bonded so as to overlap the tip portion of the tape base material 11 and partially protrude from the tape base material 11 toward the tip side. Furthermore, the planar fastener 12 is stuck so that it may overlap on the front-end | tip knob part 13. FIG. The tape base 11 may be fixed by being sandwiched between the surface side of the back side flap Sr or between the surface sheet 3 and the side sheet 8. The planar fastener 12 is attached to face the wearer's skin in a state where the diaper is attached to the wearer. Moreover, the tape base material 11 is attached so as to extend at right angles to the side edge of the side flap Sr in a natural shape.

  As another attachment form, the tape base material 11 may extend to the tip side from the planar fastener 12, and a portion extending to the tip side may be used as the tip knob portion 13. In this case, the tape base material 11 is formed of a non-stretchable member, and, as will be described later, in the tape base material intermediate portion t between the fastener 12 and the side flap Sr, a portion that is outside as viewed in the longitudinal direction of the diaper is formed. It is preferable to perform stretchability treatment so as to have stretchability or low stress stretchability. The tip knob portion 13 may be made of a nonwoven fabric. Furthermore, although the side flap Sr is non-stretchable, it may be made of a stretchable material or may incorporate an elastic band depending on circumstances.

  The bonding method of these members is not particularly limited, and the members can be bonded by an adhesive used for a normal sheet material of this type. As described above, the planar fastening tape 1 of the first embodiment has a simple structure and high attachment strength, and the tape base material extends straight with respect to the side flaps in a natural shape, so that the manufacturing process is complicated. In addition, excellent handling and high mounting strength can be realized without using extra members or special materials.

  The inner surface 12i of the surface fastener 12 is provided with a large number of minute protrusions that form hook-shaped or mushroom-shaped hooks over the entire surface. The fastener inner surface 12i provided with the hook becomes an adhesive surface of the planar fastening tape so that it can be exposed when not adhered. The surface fastener 12 is applied to the landing tape 6 disposed on the back surface of the diaper front F in the diaper unfolded state, and the surface fastener 12 is looped or crimped on the surface of the nonwoven fabric surface with fluff. The individual hooks are firmly fixed and engaged. In the first embodiment, the bondable surface is constituted by a hook of a mechanical fastener. However, the bondable surface formed by an adhesive or the like may be used. The same applies to the embodiments described later.

  In the first embodiment, the planar fastener 12 is rectangular, and its longitudinal direction (Y direction) is oriented in the longitudinal direction (Y direction) of the diaper so that it is along the side edge Se of the side flap. It is widely arranged over almost the entire width W in the Y direction (FIGS. 2 and 3). By doing in this way, the wide surface of the fastener 12 is firmly fixed to the landing tape 6, and a stable mounting state is realized.

  In the first embodiment, the tape base material 11 is viewed in the diaper longitudinal direction in the diaper unfolded state, and the tape outer direction of the base material outer portion 11a (hereinafter sometimes simply referred to as “outer portion”) (diaper width direction). ) Is similarly higher than the tape stretchability (Eb) of the base material inner portion 11b (hereinafter sometimes simply referred to as “inner portion”) viewed in the diaper longitudinal direction in the diaper unfolded state. (Ea> Eb). The substrate outer portion 11a in the longitudinal direction corresponds to the upper side of the diaper when the diaper is attached. In this sense, the substrate outer portion in the longitudinal direction is the “upper side portion” of the tape substrate 11, and the longitudinal direction. It can also be said that the base material inner part 11 b of the tape base material 11 is a “lower side part”. The magnitude of the stretchability refers to the magnitude of strain at the same load in a tensile test, and it can be said that the greater the strain, the greater the stretchability. Further, the above load conditions are selected within a range in which the strain is almost restored when the load is removed. The term “non-stretchable” typically means that the strain does not return when the load is removed according to the above definition.

  Specifically, in the first embodiment, the upper portion 11a in the tape base intermediate portion t between the fixing portion K of the tape base 11 and the surface fastener is formed of a stretchable member, and the lower portion. 11b is formed of a non-stretchable member, whereby the stretchability (Ea) of the outer portion 11a is higher than the stretchability (Eb) of the inner portion 11b. Further, the size (area) of the upper portion 11a of the tape base material 11, in particular, the width D of the outer portion 11a of the tape base material 11 in the up-and-down direction of the diaper is larger than that of the inner portion 11b. Alternatively, at least the widths 11a and 11b are equal in width. And in this embodiment, it is preferable that the length of the tape base-material intermediate part t shall be 10 mm or more and 50 mm or less (refer FIG. 2). Further, the width (WD) of the inner portion 11b of the tape base 11 is preferably 5 mm or more and not more than the length obtained by dividing the tape width W into two, more preferably 10 mm or more.

In this way, by providing a difference in stretchability between the outer portion 11a and the inner portion 11b of the tape base material 11, the tip knob portion 13 of the planar fastening tape 1 is pinched by hand so that it is directly beside (in the diaper width direction). When stretched (tensile force direction Pf: see FIG. 1), the planar fastening tape 1 naturally moves obliquely downward (tensile deformation direction Pd: see FIG. 1). That is, when stretched in the direction of tightening the abdominal girth and fastened to the landing tape 6, the tension force f ₁ (FIG. 1) is moderately strong against the stomach circumference, taking into account the balance with the tension force f ₂ around the legs. Will act. In addition, as shown in FIG. 1, the tape base material is curved because the rectangular tape base material 11 as shown in FIGS. 2 and 3 extends in the longitudinal direction outer portion 11a larger than the inner portion 11b. This is because it is fixed and curved by.

In this way, in the present embodiment, the tightening force around the waist portion increases compared to the conventional one around the leg side of the wearer, and the occurrence of a gap at the waist portion is suppressed. At the same time, the tensile force f ₂ (FIG. 1) on the inner end side of the back side flap Sr acts moderately, and the leg portion that tends to become excessive or too loose due to mother's own adjustment. The tightening force is made suitable, and for example, the trace of the base of the baby's thigh and the excessive opening of the gap are less likely to occur. The balance between the tightening force around the waist and the tightening force around the legs in the non-increasing direction depends on, for example, the stretchability (Ea) on the outer side and inner side of the tape base material depending on the age of the infant and the type of the diaper. , Eb) or the tape width ratio (D / W) and thickness u can be appropriately adjusted.

  In Embodiment 1, although the example which comprised the outer part 11a of the tape base material 11 of the planar fastening tape 1 by the elastic member and the inner part 11b by the non-elastic member was shown, Embodiment 2 is an upper side and a lower side. Both portions 11a and 11b are made of a stretchable member, the outer portion 11a is made of a low stress stretchable member, and the inner portion 11b is made of a high stress stretchable member. Specifically, the stress in the diaper longitudinal direction of the tape base material is preferably 50 gf or more and 700 gf or less, more preferably 150 gf or more and 700 gf or less, when the strain is 10 mm. The inner part is preferably higher than the outer part by 100 gf or more, and more preferably formed by a member having a stress of 150 gf or more. As in the second embodiment, by changing the extension stress on the upper side and the lower side of the tape base material 11, when the tip knob portion 13 is pulled to the tightening side, the tape base material 11 naturally extends diagonally downward, and the abdominal circumference The tightness of the will strengthen, fit around the stomach and no gaps. Normal tightening is maintained around the legs. Even if there is a change in abdominal circumference when the body moves or drinks milk, the elasticity of the tape base 11 works and follows the body shape as a whole diaper. And comfort are improved.

  FIG. 5 is a plan view of a planar fastening tape according to Embodiment 3 of the present invention. In this Embodiment 3, the tape base material 11 is formed of a non-stretchable single material or a single material of high stress stretchability. A stress stretchability imparting process is performed so that the stretchability of the outer portion 11a is higher than that of the inner portion 11b. As the stretch imparting process or the low stress stretch imparting process, for example, by processing a number of groove-like pores 14 extending vertically in the outer portion 11a, the tape base 11 is stretchable or low in the pulling direction. Stress stretchability is ensured. In addition to the above-mentioned form, for example, a large number of pointed pores may be processed, or a known shrinking process or the like may be performed as the processing for imparting stretchability or low stress stretchability.

  In Embodiment 3 described above, both the upper side and the lower side of the tape base material 11 are formed of a single material that is integrally connected. However, in the structure of Embodiment 4, the outer side portion 11 a and the inner side are used as the tape base material 11. The portion 11b is separated in the vertical direction (diaper longitudinal direction). In this case, the outer portion 11a is a stretchable member and the inner portion 11b is made of a non-stretchable member, or the outer portion is made of a low stress stretchable member and the inner portion is made of a high stress stretchable member. In addition, as a modified example of the fourth embodiment, it may not be completely separated but may be partially separated. By using separate members separated from each other in this way, it is easy to manufacture each tape base material 11 and the degree of freedom in material selection is improved. By pulling the tip knob portion 13 of the surface fastening tape 1 in the lateral direction, the tape base 11 extends obliquely downward, the abdominal circumference is tightened well, and there is no gap between the diaper and the abdominal circumference at the time of wearing. The feeling is improved as in the first to third embodiments.

  FIG. 6 is a plan view of a planar fastening tape according to the fifth embodiment of the present invention, and FIG. 7 is a plan view showing a modification of the fifth embodiment. The planar fastener 12 is provided on the knob portion adjacent to the tip knob portion 13, and the tape substrate 11 is disposed between the fastener 12 and the main body side flap Sr as in the first to fourth embodiments. In the fifth embodiment, however, the upper and lower corners of the tip knob portion 13 are greatly rounded and depressed to form a curved shape. By doing in this way, even if the tip nail | claw part 13 is formed with a hard material, the danger that a corner | angular part hits an infant's arm, a hand, etc., can be excluded. Further, as in the modification of FIG. 7, the tip knob portion 13 is formed so as to approach the upper side so as to face the outer portion 11 a of the tape substrate 11, and when this portion is gripped and pulled, the fastening tape 1 The stretching force is strongly applied to the outer portion 11a of the body, and the abdominal circumference is tightened more effectively, and the generation of a gap in the abdominal circumference is suppressed. In this modification as well, it is preferable to form the outer shape of the tip knob portion 13 moved upward in a curved shape so as to be easily grasped.

As described above, in a diaper in which a simple base tape base material is fixed at right angles to the side projection of the diaper body with the conventional rectangular surface fastening tape, even if it is on the side projection of the body (side flap) Even if stretchability is provided, the tension balance when the fastening tape is pulled may not be achieved, and it may not be possible to fit the waist of the infant skillfully. For example, it may not fit tightly on the infant's stomach and the back of the back, creating gaps. Therefore, urine and loose stool may leak from this gap when laying down. In order to improve this, the guardian tries to stop by pulling the fastening tape downward slightly toward the legs. This can be done by pulling at just the right angle and strength, but is difficult for those who are not used to it. For example, the leg circumference is tightened too much and the base of the thigh is congested, or the leg circumference is loosened as much as the abdominal circumference is tightly tightened, and urine leaks from the crotch.
On the other hand, according to the wearing article of each of the above embodiments, by simply pulling the surface fastening tape in the lateral direction as described above, the fastening tape is naturally pulled obliquely downward, which is an almost ideal leg circumference. It is possible to balance both the tightness of the body and the tightness of the waistline in a balanced manner. In addition, since the downward angle of the fastening tape is not fixed, the inclination is suitable for each body shape, and good wearability and fit are achieved.

  As the top sheet 4, the back sheet 3, and the absorbent body 5, various materials used in ordinary absorbent articles and the like can be used. As the tape base material 11 of the fastening tape 1, various tape materials such as a nonwoven fabric or a synthetic resin film used in a normal disposable diaper with a fastening tape can be used. From this point, it is preferable to use a nonwoven fabric. The material for forming the landing tape 6 is preferably a nonwoven fabric used as a female material for mechanical fasteners used in disposable diapers or the like, or a synthetic resin film joined with a nonwoven fabric or a knitted fabric. Nonwoven fabrics that are female materials are preferred. As a material for forming a planar mechanical fastener (planar fastener), for example, a material usually used for this type of article can be suitably used.

The fastening tape in the deployable wearing article according to the present invention is not limited to the above-described embodiment, and can be appropriately changed. For example, the mechanical fastener (plane fastener) may be a female material. In that case, for example, a male material of a pair of mechanical fasteners is provided as a landing tape on the non-skin contact surface side of the abdominal side of the disposable diaper. Moreover, the fastening tape may be distribute | arranged to the both overhang | projection part of the stomach side part of a disposable diaper. In each of the above embodiments, the landing tape is affixed to the outer surface of the diaper at the front side of the stomach side, that is, the surface on the non-skin contact surface side. It almost coincides with the longitudinal direction. The landing tape can be attached to the disposable diaper by fastening the surface fastening tape, but the non-skin contact surface of the disposable diaper is fastened to the male mechanical fastener. Landing tape is not always necessary if it is formed from a possible sheet. Moreover, the deployment | wearing type wearing article which concerns on this invention is not limited to the said embodiment, According to the performance and form requested | required, it can select suitably using the advantage of each embodiment.
Further, in the unfoldable wearing article according to the present invention, almost the entire tape base intermediate portion t may be constituted by an elastic sheet such as an elastomer different from the knob 13, and at this time, the edge on the inner side in the longitudinal direction of the article Alternatively, the non-stretchable member may be provided only on the outer side of the article in the longitudinal direction and the inner side in the longitudinal direction of the article. Examples of the non-stretchable member include a non-stretchable member such as a sewing thread. Furthermore, the longitudinal direction outer portion may be constituted by an elastic gather member in which an elastic member is fixed between two nonwoven fabric sheets, and the longitudinal direction inner portion may be constituted by a non-stretchable nonwoven fabric. Furthermore, it is only necessary to distinguish the outer portion in the longitudinal direction and the inner portion in the longitudinal direction as regions, and the number and arrangement of members constituting these two portions are not limited thereto. For example, three or more members having different stretchability may be applied to make a difference in area stretchability between the two parts, or a member or structure whose stretchability changes in an inclined manner may be applied in the longitudinal direction. The stretchability may gradually increase from the inner portion toward the outer portion in the longitudinal direction.

  The deployable wearing article of the present invention is not limited to the disposable diaper for infants as in the above embodiment, but may be a diaper for adults. Moreover, the expansion | deployment type diaper cover used in combination with absorption pads, such as a urine pad, may be sufficient, and the absorber arrange | positioned in the absorption pad also in this case uses the absorption body of each embodiment which concerns on the said expansion | deployment type diaper. It can be seen as 5. Specifically, the absorbent pad and the diaper cover are mounted in combination so that the absorbent body of the absorbent pad is disposed from the ventral front part F to the back rear part R of the diaper cover via the crotch intermediate part C. At this time, the fastening tape attached to the side flap of the diaper cover performs the same function as that shown in each of the above embodiments, and an ideal fit that matches the body shape of the wearer can be realized.

The advantages of the present invention in each of the embodiments described above can be summarized as follows.
(1) When fastening the fastening tape, even if it is simply pulled in the horizontal direction, it will naturally be held obliquely downward, improving the fit of the stomach circumference (especially from the side to the back) and eliminating the gap in the waist circumference .
(2) Since the inclination angle of the fastening tape is not determined in advance, a tightening degree appropriately corresponding to each body shape can be obtained.
(3) Since it follows the swelling of the wearer's stomach, the fit and comfort are improved.
(4) The fit around the legs is maintained as before, and no excessive tightening or the like occurs.
(5) Since the fastening tape is attached in parallel to the width direction of the diaper, there is no significant increase in manufacturing process or design change.

It is the perspective view which showed the expansion | deployment type disposable diaper (Embodiment 1) provided with the planar fastening tape which is preferable embodiment of this invention in the state at the time of mounting | wearing. It is the expanded sectional view which looked at the part of II of FIG. 1 from the engaging surface side in the state before engaging a fastening tape. It is the partially notched top view which showed the expansion | deployment type disposable diaper which concerns on Embodiment 1 in the expansion | deployment state. It is an expanded sectional view along the IV-IV line of FIG. 2, Comprising: It is sectional drawing which showed the assembly form of the fastening tape and main body side flap which concern on Embodiment 1 of this invention. It is an enlarged plan view of the planar fastening tape concerning Embodiment 3 of the present invention. It is an enlarged plan view of the planar fastening tape concerning Embodiment 5 of the present invention. FIG. 10 is an enlarged plan view of a planar fastening tape according to a modification of the fifth embodiment.

Explanation of symbols

1 Sheet-shaped fastening tape 2 Diaper body Sr, Sf Side flap (side projection)
DESCRIPTION OF SYMBOLS 3 Back sheet 4 Top sheet 5 Absorber 6 Landing tape 8 Side sheet 10 Unfoldable diaper 11 Tape base material 11a Outer part of tape base material in longitudinal direction of diaper 11b Inner part of tape base material in longitudinal direction of diaper 12 Planar fastener 13 Tip knob 14 Groove-shaped pore

Claims (3)

A deployment-type wearing article having an abdomen front part, a dorsal rear part, and a crotch intermediate part interposed between the two parts, and both widthwise sides of the abdomen front part or the dorsal rear part of the wearing article A planar fastening tape composed of a planar fastener and a tape base material is attached to the edge, and the planar fastener is located at a position away from the side edge and to the side edge via the tape base. Arranged to connect,
Tape substrate intermediate portion between the side edge and the planar fastener, the longitudinal outer portions and the article longitudinally inner portion of the wearing article expanded state is formed by a single material of high stress stretch, and said longitudinal low stress stretchability imparting processing to the outer part is decorated, the longitudinal stretch of the outer part are made larger than the elasticity of the longitudinal inner portion of the article longitudinally outer portion The area is larger than the area of the inner part in the longitudinal direction of the article,
The planar fastening tape has a tip knob portion extending outward of the planar fastener, and is formed such that the area of the article longitudinal direction outer portion of the tip knob portion is larger than the area of the article longitudinal inner portion. expansion-type wearing article being. The stress at the time of 10 mm strain is 50 gf or more and 700 gf or less at the outer side in the article longitudinal direction of the intermediate part of the tape base material, and the stress at the time of 10 mm strain at the inner part in the article longitudinal direction is 100 gf or more higher than that at the outer part in the article longitudinal direction. 1 Symbol placement of the expansion type wearing article. The expandable wearing article according to claim 1 or 2 , wherein the article longitudinal direction outer side part and the article longitudinal direction inner side part of the tape base material intermediate part are separated from each other entirely or partially.

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