JP2011120809A - Underpants type absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an underpants type absorbent article, where its side seal part is so readily torn off that the absorbent article is easily taken off from the body. <P>SOLUTION: The diaper 1A includes a pair of side seal parts 4, 4. At each side seal part 4, the diaper 1A has a knob 5 extending outward from the side seal part 4 in a lateral direction (an X direction). The knob 5 includes a belly-side knob 5a extending from the side end 2a of a belly-side sheet 2A, and a back-side knob 5b extending from the side end 2b of a back side sheet 2B. The belly-side knob 5a and the back-side knob 5b are doubled and include a space 5c for the insertion of a finger tip at least at a position on the circumferential fringe of the doubled belly-side knob 5a and back-side knob 5b. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a pants-type absorbent article such as a disposable diaper.

  As a conventional pants-type absorbent article, a pants-type absorbent article having a pair of side seal portions obtained by joining the left and right side edges of the abdominal sheet and the left and right side edges of the back sheet is known. For example, a pant-type disposable diaper, which is a pant-type absorbent article, is removed by tearing the side seal part after use, and therefore, a pant-type disposable diaper that is easy to tear the side seal part is known. For example, Patent Document 1 has a pair of side connection portions at both lateral edges of the front main body panel and the rear main body panel, and each side connection portion has fixing means that can be re-fixed. The pant diaper is listed.

  Such a pant diaper described in Patent Document 1 has a concave portion that functions as a finger grip when opening each side connection portion in each side connection portion. Can be separated and removed. However, since the side connection part of the pant diaper described in Patent Document 1 is connected in a state where the lateral side edges of the front body panel and the lateral side edges of the rear body panel are in close contact with each other, It cannot be removed easily.

Special table 2009-519806

  Accordingly, an object of the present invention is to provide a pants-type absorbent article having a pair of side seal portions in which the left and right side edges of the ventral sheet and the left and right side edges of the back side sheet are joined. An object of the present invention is to provide a pant-type absorbent article that can be easily removed.

  The present invention includes an exterior body and an absorbent main body fixed to the inside of the exterior body, and the exterior body is disposed on the stomach side of the wearer when worn, and worn when worn A pants-type absorbent article having a back side portion disposed on the back side of a person and having a pair of side seal portions formed by joining both side edges of the abdominal side portion and the back side portion. The side seal portion has a grip portion extending outward in the width direction from the side seal portion, and the grip portion extends from a side edge portion of the belly side portion of the exterior body. A side grip portion and a back side grip portion extending from a side edge portion of the back side portion of the exterior body, and is formed by overlapping the ventral side grip portion and the back side grip portion, A pants-type absorbent material having a space for inserting a fingertip into at least a part of the peripheral edge where the ventral gripping part and the dorsal gripping part are overlapped. It is intended to provide.

  According to the pants-type absorbent article of the present invention, the side seal portion is easy to tear and can be easily removed.

FIG. 1 is a perspective view of a pants-type disposable diaper according to the first embodiment of the present invention. FIG. 2 is a plan view of the pants-type disposable diaper shown in FIG. 1 as viewed from the top sheet side in an expanded state. FIG. 3 is an enlarged perspective view of a grip portion of the pants-type disposable diaper according to the first embodiment. 4 is a cross-sectional view taken along line X1-X1 of FIG. FIG. 5 is an enlarged perspective view of a grip portion of a pants-type disposable diaper according to the second embodiment. 6 is a cross-sectional view taken along line X2-X2 of FIG. FIG. 7 is an enlarged perspective view of a grip portion of a pants-type disposable diaper according to the third embodiment. 8 is a cross-sectional view taken along line X3-X3 in FIG. FIG. 9 is an enlarged perspective view of a grip portion of a pants-type disposable diaper according to the fourth embodiment. 10 is a cross-sectional view taken along line X4-X4 of FIG. FIG. 11 is a top view showing another fixed state of the grip portion.

  Hereinafter, the underpants type absorbent article of the present invention will be described based on the preferred first embodiment with reference to FIGS.

The pants-type disposable diaper 1A of the first embodiment (hereinafter, also referred to as “diaper 1A”), as shown in FIG. A back side sheet 2B disposed on the back side of the person, an abdominal side sheet 2A, and an absorbent main body 3 fixed inside over the back side sheet 2B, both side edges 2a of the abdominal side sheet 2A, A pair of side seal portions 4, 4 is formed by joining 2a and both side edges 2b, 2b of the back seat 2B.
The diaper 1A is formed symmetrically with respect to the center line CL as shown in FIGS. Accordingly, in the following description, the right side of the symmetrical part will be mainly described.

  The diaper 1A according to the first embodiment will be described in detail. The diaper 1A in the extended state (see FIG. 2) has a longitudinal direction (hereinafter referred to as “Y direction”. Y direction: a direction parallel to the center line CL. ) At the time of wearing, located between the abdominal side A disposed on the wearer's ventral side, the back side B disposed on the wearer's back side, and the abdominal side A and back side B And it has the crotch part C distribute | arranged to a wearer's crotch part. The width direction of the diaper 1A is a direction orthogonal to the longitudinal direction (Y direction) (hereinafter referred to as “X direction”).

  As shown in FIG. 1, the diaper 1 </ b> A has a grip portion 5 that extends outward from the side seal portion 4 in the width direction (X direction) on each side seal portion 4 of the diaper 1 </ b> A. In the diaper 1A of the first embodiment, as shown in FIG. 2, the grip portion 5 includes a ventral grip portion 5a extending from the side edge portion 2a of the ventral seat 2A and a side edge portion of the back seat 2B. 2b extending from 2b, formed by overlapping the abdominal gripping part 5a and the dorsal gripping part 5b, and overlapping the abdominal gripping part 5a and the dorsal gripping part 5b. There is a space 5c in which a fingertip is inserted in at least a part of the periphery. This will be specifically described below.

  In the diaper 1A of the first embodiment, as shown in FIG. 2, the ventral sheet 2A is a belly that extends downward along the ventral sheet main body 20A and the lower edge 200 of the ventral sheet main body 20A when worn. A side extending portion 21A is provided. Here, “downward” means a direction toward the center CT (see FIG. 2) of the diaper 1A in the longitudinal direction (Y direction) of the diaper 1A. Specifically, the abdominal sheet body 20A has a substantially rectangular shape that is long in the diaper width direction (X direction) in the extended state of the diaper 1A (see FIG. 2), and is along the diaper longitudinal direction (Y direction). It has a pair of left and right side edges 20a, 20a, and has a ventral gripping part 5a extending continuously outward in the width direction (X direction) from each of the pair of left and right side edges 20a, 20a. Yes. The ventral extension portion 21A extends downward from the ventral sheet main body 20A along the lower edge 200 of the ventral sheet main body 20A. In the extended state of the diaper 1 (see FIG. 2), the diaper width direction (X It has a long rectangular shape in the direction), and has a pair of left and right side edges 21a, 21a along the diaper longitudinal direction (Y direction).

  In the diaper 1A of the first embodiment, as shown in FIG. 2, the back sheet 2B is a back side that extends downward along the lower edge 200 of the back sheet body 20B and the back sheet body 20B when worn. An extending portion 21B is provided. Here, “downward” means a direction toward the center CT (see FIG. 2) of the diaper 1A in the longitudinal direction (Y direction) of the diaper 1A, like the ventral sheet 2A. Specifically, the back side seat body 20B has a substantially rectangular shape that is long in the diaper width direction (X direction) in the extended state of the diaper 1A (see FIG. 2), and extends along the diaper longitudinal direction (Y direction). It has a pair of left and right side edges 20b, 20b, and has a dorsal gripping part 5b extending continuously outward in the width direction (X direction) from each of the pair of left and right side edges 20b, 20b. Yes. The back-side extending portion 21B extends downward from the back-side seat body 20B along the lower edge 200 of the back-side seat body 20B. In the extended state of the diaper 1 (see FIG. 2), the diaper width direction (X It has a long rectangular shape in the direction) and has a pair of left and right side edges 21b, 21b along the diaper longitudinal direction (Y direction).

In the diaper 1A of the first embodiment, a part of both side edges 2a, 2a of the ventral sheet 2A and a part of both side edges 2b, 2b of the back sheet 2B are joined together to form a pair of side seal parts 4. , 4 are formed. Specifically, as shown in FIG. 2, the side edge portions 20a, 20a of the abdominal seat body 20A and the side edge portions 20b, 20b of the back side seat body 20B are joined over the entire region, and a pair of the pair shown in FIG. Side seal portions 4 and 4 are formed, and the side edge portions 21a and 21a of the ventral side extension portion 21A and the side edge portions 21b and 21b of the back side seat body 20B are not joined. Further, in the diaper 1A of the first embodiment, as shown in FIG. 2, the abdomen gripping part 5a extending from both side edges 20a, 20a of the abdomen seat body 20A and the both sides of the back sheet body 20B. At least a part of the periphery where the abdominal gripping part 5a and the dorsal gripping part 5b are overlapped as shown in FIGS. 3 and 4, with the dorsal gripping part 5b extending from each of the edges 20b, 20b being overlapped. The grip portion 5 is formed so as to have a space 5c for inserting a fingertip into the.
In this way, the side edges 20a, 20a of the ventral seat body 20A and the side edges 20b, 20b of the back seat body 20B are joined, and the diaper 1A has a pair of side walls as shown in FIG. The seal portions 4 and 4 are formed, and the waist opening WO and the pair of leg openings LO and LO are formed. For this joining, for example, a heat seal, a high frequency seal, an ultrasonic seal, an adhesive, or the like is used.

  In the diaper 1A of the first embodiment, as shown in FIGS. 3 and 4, the abdominal gripping portion 5a and the dorsal gripping portion 5b are provided with elastic members 24 arranged in an expanded state in the width direction (X direction). And a gather is formed by contraction of the elastic member 24, and the space 5c of the grip portion 5 is formed by the formation of the gather. In the diaper 1A, as shown in FIGS. 3 and 4, each of the abdomen gripping part 5a and the dorsal gripping part 5b has an elastic member 24 to form a gather. Only one of the part 5a and the back side grip part 5b may have the elastic member 24 and form a gather.

  In the diaper 1A of the first embodiment, as the abdominal side sheet 2A and the back side sheet 2B, one that forms a gather by contraction of the elastic member 24 arranged in an extended state between the sheets and expresses elasticity is used. As shown in FIG. 2, an outer layer sheet 22 forming the outer surface of the diaper, an inner layer sheet 23 disposed on the inner surface side of the outer layer sheet 22, and a plurality of sheets disposed in an extended state between the two sheets 22 and 23. , And a waist elastic part G1, a waist elastic part G2, and an extended part elastic part G3, respectively. Further, as shown in FIGS. 3 and 4, the ventral side grip portion 5 a of the ventral side sheet 2 </ b> A and the back side gripping portion 5 b of the back side seat 2 </ b> B have the outer layer sheet 22 continuously outward in the width direction (X direction). A grip portion forming extension portion 52 formed by extending the grip portion forming extension portion 52 and the inner layer sheet 23 disposed on the inner surface side of the outer layer sheet 22 continuously outward in the width direction (X direction). 53 and a plurality of thread-like elastic members 24 in a stretched state in which the thread-like elastic member 24 continuously extends outward in the width direction (X direction) between the gripping part forming extension parts 52 and 53. In addition, gathers Ga and Gb are formed in the abdomen gripping part 5a and the dorsal gripping part 5b, respectively. As shown in FIGS. 3 and 4, the ventral gripping portion 5 a of the ventral sheet 2 </ b> A forms a gather Ga, and the dorsal gripping portion 5 b of the dorsal seat 2 </ b> B forms a gather Gb. A grip 5 having a space 5c for inserting a fingertip is formed on the periphery of the overlapping portion 5a and the back grip 5b. That is, in the gripping part 5, even if the abdominal gripping part 5a and the dorsal gripping part 5b are overlapped, the overlapped peripheral edges are gathered by the gather Ga of the ventral gripping part 5a and the gather Gb of the dorsal gripping part 5b. Are not joined, and a space 5c for inserting a fingertip is formed on the entire circumference of the overlapped peripheral edges.

  The thread-like elastic member 24 disposed on the abdominal gripping part 5a and the thread-like elastic member 24 disposed on the dorsal gripping part 5b can be adjusted in thickness and expansion magnification, and the stretching stress at the time of stretching can be adjusted. In the diaper 1A of the first embodiment, the expansion rate of the elastic member 24 included in the ventral gripping portion 5a is different from the expansion rate of the elastic member 24 included in the back gripping portion 5b. Specifically, in the abdominal gripping portion 5a, the elastic member 24 having a stress of 10 gf (preferably a stress in the range of 5 gf to 40 gf) when stretched to a stretch rate of 100% is stretched to a stretch rate of 200% ( 10% to 350% is preferable), and the gathered Ga is formed because it is arranged and fixed between the gripping portion forming extension portions 52 and 53 in a state of being extended in the X direction. Further, in the back side gripping part 5b, the elastic member 24 having a stress of 10 gf (preferably a stress in the range of 5 gf to 40 gf) when stretched to a stretch rate of 100% is used. 350%), the gather Gb is formed because it is arranged and fixed between the gripping portion forming extension portions 52 and 53 in a state of being extended in the X direction. Here, the stretch rate is the ratio of the length of the stretched portion with respect to the natural length. For example, when a stretch of 10 cm in length is stretched to 20 cm, the stretch rate is 100%. In the diaper 1A of the first embodiment, the stretch rate of the elastic member 24 included in the ventral gripping portion 5a is different from the stretch rate of the elastic member 24 included in the dorsal gripping portion 5b. The elastic member 24 of 5a and the elastic member 24 of the back-side grip 5b may have the same stress when stretched to a stretch rate of 100%, and the same stretch rate may be used.

  The length in the longitudinal direction (Y direction) of the side seal portion 4 shown in FIG. 1 is the length L1 in the longitudinal direction (Y direction) of the ventral seat body 20A and the back seat body 20B as shown in FIG. The length is the same as the length La in the longitudinal direction (Y direction) of the ventral sheet 2A and the length Lb in the longitudinal direction (Y direction) of the back side sheet 2B. As shown in FIG. 2, the ventral sheet 2 </ b> A is formed with a ventral-side extending portion 21 </ b> A having a length L <b> 2 in the longitudinal direction (Y direction) that extends downward from the side seal portion 4. The seat 2B is formed with a back-side extending portion 21B having a length L3 in the longitudinal direction (Y direction) that extends downward from the side seal portion 4.

  From the viewpoint of sufficiently covering the wearer's buttocks on the back side of the wearer during wearing, the abdomen extending portion 21A and the dorsal extending portion 21B in the diaper 1A have the extension start positions of the diaper 1A. A position corresponding to the groin portion of the wearer at the time of wearing is preferable. Specifically, the length L2 of the ventral extension portion 21A is preferably 5 to 150% of the length L1 of the side seal portion 4 (abdominal seat body 20A), and preferably 25 to 70%. Is more preferable. Furthermore, the length L2 of the ventral side extending portion 21A is preferably 5 to 60% of the length La of the ventral sheet 2A, and more preferably 20 to 40%. The length L3 of the back extension portion 21B is preferably 5 to 150% of the length L1 of the side seal portion 4 (back side seat body 20B), and more preferably 25 to 70%. Furthermore, the length L3 of the back side extension portion 21B is preferably 5 to 60% of the length Lb of the back side seat 2B, and more preferably 20 to 40%. In addition, it is preferable that extension length L2, L3 of each of the abdominal extension part 21A and the back extension part 21B is 10 mm or more, and it is more preferable that it is 20 mm or more.

  As shown in FIG. 2, the length L4 in the longitudinal direction (Y direction) of the ventral gripping portion 5a of the ventral seat 2A is the length of the side seal portion 4 (the ventral seat main body 20A) from the viewpoint of ease of picking. It is preferably 9 to 100% of the thickness L1, and more preferably 18 to 45%. The length L5 in the longitudinal direction (Y direction) of the back side grip portion 5b of the back side seat 2B is 9 to 100% of the length L1 of the side seal portion 4 (back side seat body 20B) from the viewpoint of ease of picking. It is preferable that it is, and it is more preferable that it is 18 to 45%. The length L4 of the ventral gripping portion 5a is preferably 10 mm or more and 110 mm or less, and more preferably 20 mm or more and 50 mm or less. The length L5 of the back-side grip 5b is preferably 10 mm or more and 110 mm or less, and more preferably 20 mm or more and 50 mm or less.

  Further, as shown in FIG. 2, the length (width) W1 in the width direction (X direction) of the abdominal gripping portion 5a is between the side edges 20a, 20a of the abdominal seat body 20A from the viewpoint of ease of picking. The distance Wa is preferably 3 to 17%, more preferably 6 to 14%. The length (width) W2 in the width direction (X direction) of the back-side grip portion 5b is 3 to 17% of the distance Wb between the side edges 20b and 20b of the back-side seat body 20B from the viewpoint of easy picking. It is preferable that it is 6 to 14%. The width W1 of the ventral gripping portion 5a is preferably 10 mm or more and 60 mm or less, and more preferably 20 mm or more and 50 mm or less. The width W2 of the back-side grip 5b is preferably 10 mm or more and 60 mm or less, and more preferably 20 mm or more and 50 mm or less.

  In the diaper 1 </ b> A, as shown in FIG. 2, the waist stretchable part G <b> 1 is formed outward from both ends 3 a and 3 a in the longitudinal direction (Y direction) of the absorbent main body 3, and the extended part stretchable part G3 is formed in the abdominal side extension part 21A of the abdominal side sheet 2A and the back side extension part 21B of the back side sheet 2B, respectively, and the waistline elastic part G2 is respectively provided in the abdominal side sheet 2A and the back side sheet 2B. Are formed between the waist stretchable part G1 and the extended part stretchable part G3.

  As shown in FIG. 2, the absorbent main body 3 has a substantially vertically long rectangular shape, a liquid-permeable top sheet 31, a liquid-impermeable (hard liquid-permeable) back sheet 32, both sheets 31, The absorber 33 interposed between 32 is provided. As shown in FIG. 2, side cuffs 35, 35 made of a liquid-resistant or water-repellent and breathable material are provided on both side portions 3b, 3b in the longitudinal direction (Y direction) of the absorbent main body 3. Is provided. In the vicinity of the free end of each side cuff 35, an elastic member 34 is arranged in a state of extending in the longitudinal direction (Y direction). As for the side cuff 35, the free end side stands up at the time of wearing of a diaper, and the outflow of the liquid to the width direction of the absorptive main body 3 is prevented. As shown in FIG. 2, the absorbent main body 3 is fixed over the abdominal sheet 2A and the back sheet 2B. As shown in FIG. 2, the length in the width direction (X direction) of the abdominal sheet 2 </ b> A and the back sheet 2 </ b> B is longer than the length in the width direction (X direction) of the absorbent main body 3. .

The forming material of the pants-type disposable diaper 1A of the first embodiment will be described.
As the outer layer sheet 22 (including the grip part forming extension part 52) and the inner layer sheet 23 (including the grip part forming extension part 53) constituting the ventral sheet 2A and the back sheet 2B, a disposable diaper or the like is usually used. If it is used for an absorbent article, it can be used without particular limitation. For example, as the outer layer sheet 22 and the inner layer sheet 23, a water-repellent nonwoven fabric or the like can be used.

  As the sheets forming the top sheet 31, the back sheet 32, the absorber 33 and the side cuffs 35 constituting the absorbent main body 3, respectively, as long as they are usually used for absorbent articles such as disposable diapers, in particular, Can be used without limitation. For example, a hydrophilic and liquid-permeable nonwoven fabric can be used as the top sheet 31, and a liquid-impermeable or water-repellent resin film or a laminate of a resin film and a nonwoven fabric is used as the back sheet 32. be able to. As the absorbent body 33, an absorbent core made of absorbent polymer particles and a fiber material and covered with tissue paper can be used. As the sheet for forming the side cuffs 35, a stretchable film, a nonwoven fabric, a woven fabric, or a laminated sheet thereof can be used.

  The elastic member 24 and the side cuffs 35 that form the waist elastic part G1, the waist elastic part G2, the extended part elastic part G3, the gather Ga of the abdominal gripping part 5a and the gather Gb of the back gripping part 5b are arranged. As the elastic member 34, a thread-like stretchable material made of natural rubber, polyurethane, polystyrene-polyisoprene copolymer, polystyrene-polybutadiene copolymer, polyethylene-α olefin copolymer such as ethyl acrylate-ethylene, or the like is used. be able to

  For joining the side seal portion 4, for example, heat seal, high frequency seal, ultrasonic seal, adhesive, or the like is used. For fixing the elastic member 24 disposed between the gripping portion forming extension portions 52 and 53 in the ventral gripping portion 5a and the dorsal gripping portion 5b, an adhesive used for absorbent articles such as disposable diapers is usually used. Fusing means such as heat embossing, ultrasonic embossing and high frequency embossing are used. The fixing means of the fixing portion 4 between the absorbent main body 3 and the ventral sheet 2A and the back sheet 2B is usually an adhesive used for absorbent articles such as disposable diapers, heat embossing, ultrasonic embossing, high frequency embossing. A fusing means such as is used. Similarly, for fixing the top sheet 31, the back sheet 32, and the side cuffs 35, an adhesive used for an absorbent article such as a disposable diaper, or a fusion means such as heat embossing, ultrasonic embossing, high frequency embossing, or the like is used. .

The effect at the time of using the underpants type disposable diaper 1A of 1st Embodiment of this invention mentioned above is demonstrated.
The diaper 1A of 1st Embodiment has the holding part 5 in the side seal part 4 as shown in FIG.1, FIG.3, FIG.4, and the holding part 5 is the abdominal side holding part 5a and the back side holding | grip. There is a space 5c in which a fingertip is inserted into at least a part of the peripheral edge where the portions 5b are overlapped. Therefore, since the fingertip can be put into the space 5c and the abdomen gripping part 5a of the gripping part 5 or the back gripping part 5b of the gripping part 5 can be picked, the side seal part 4 can be easily torn from that point. The diaper 1A after use can be easily removed. In the diaper 1 </ b> A of the first embodiment, as shown in FIG. 1, the pair of side seal portions 4, 4 each have a grip portion 5. The seal part 4 can be torn.

  In the diaper 1A of the first embodiment, as shown in FIGS. 3 and 4, both the abdominal gripping portion 5a and the back gripping portion 5b have an elastic member 24, and the ventral gripping portion 5a A gather Ga is formed, and a gather Gb is formed on the back gripping portion 5b. Therefore, even if the abdominal gripping part 5a and the dorsal gripping part 5b are overlapped, the overlapped peripheral edges are joined by the gather Ga of the abdominal gripping part 5a and the gather Gb of the dorsal gripping part 5b. There is no space and a space 5c into which the fingertip is inserted is easily formed at the overlapped peripheral edge. In particular, in the diaper 1A of the first embodiment, the stretch rate of the elastic member 24 included in the ventral gripping portion 5a is different from the stretch rate of the elastic member 24 included in the dorsal gripping portion 5b. Since the shape of the gather Ga of 5a is different from the shape of the gather Gb of the back gripping portion 5b, the overlapped peripheral edges are not further joined to each other. Is more easily formed.

Next, the underpants type disposable diaper of 2nd Embodiment of this invention is demonstrated based on FIGS.
About the underpants type disposable diaper 1B of 2nd Embodiment (henceforth "diaper 1B"), a different point from the underpants type disposable diaper 1A of 1st Embodiment is demonstrated. The point which is not demonstrated in particular is the same as that of the pants-type disposable diaper 1A of the first embodiment, and the description of the pants-type disposable diaper 1A of the first embodiment is applied as appropriate.

  In the diaper 1B of 2nd Embodiment, as shown in FIG. 5, FIG. 6, the gather Gb is not formed in the back side grip part 5b, but the gather Ga is formed only in the ventral side grip part 5a. However, it is different from the diaper 1A in which the gathers Ga and Gb are formed. This will be specifically described below.

  In the diaper 1B of the second embodiment, as shown in FIGS. 5 and 6, the abdominal gripping part 5a and the dorsal gripping part 5b each have an elastic member 24, and the elastic member of the dorsal gripping part 5b. 24 is divided into a plurality of pieces. That is, as shown in FIGS. 5 and 6, the elastic member 24 of the back-side grip 5 b is cut by a cutter that cuts in the Y direction, and is divided into a plurality of pieces in the X direction. On the other hand, in the diaper 1 </ b> A, as shown in FIGS. 5 and 6, the abdomen gripping portion 5 a has an elastic member 24 arranged in an expanded state in the width direction (X direction). The gather Ga is formed, and the space 5c of the grip part 5 is formed by the gather formation. In the diaper 1B, the elastic member 24 of the back side gripping part 5b is divided into a plurality of pieces, no gathers are formed on the back side gripping part 5b, and gathers Ga are formed on the ventral side gripping part 5a. However, conversely, the elastic member 24 of the abdominal gripping part 5a is divided into a plurality of pieces, no gather is formed on the flag gripping part 5a, and a gather Gb is formed on the dorsal gripping part 5b. It may be.

  In the diaper 1B, the ventral side gripping portion 5a of the ventral side sheet 2A is formed with a gripping portion in which the outer layer sheet 22 continuously extends outward in the width direction (X direction) as shown in FIGS. An extension part 52, a grip part forming extension part 53 in which the inner layer sheet 23 arranged on the inner surface side of the outer layer sheet 22 extends continuously outward in the width direction (X direction), and both grip part formation extensions A plurality of thread-like elastic members 24 in a stretched state in which the thread-like elastic member 24 continuously extends outward in the width direction (X direction) is provided between the protruding parts 52 and 53, and the ventral gripping part 5a includes Gather Ga is formed. On the other hand, as shown in FIGS. 5 and 6, the back-side grip portion 5 b of the back-side sheet 2 </ b> B is a grip-portion-extending portion in which the outer layer sheet 22 extends continuously outward in the width direction (X direction). 52, a grip portion forming extension portion 53 in which an inner layer sheet 23 disposed on the inner surface side of the outer layer sheet 22 extends continuously outward in the width direction (X direction), and both grip portion forming extension portions 52. , 53, and a plurality of thread-like elastic members 24 in an extended state in which the thread-like elastic members 24 continuously extend outward in the width direction (X direction). As shown in FIG. 6, since it is cut by a cutter that cuts in the Y direction and is divided into a plurality of pieces in the X direction, no gathers are formed on the dorsal grip portion 5b. As shown in FIG. 5 and FIG. 6, the ventral side grip portion 5 a of the ventral side sheet 2 </ b> A forms a gather Ga, so that the fingertip is placed on the periphery where the ventral side grip portion 5 a and the back side gripping portion 5 b are overlapped. A holding part 5 having a space 5c for inserting the is formed. That is, in the gripping part 5, even if the abdominal gripping part 5a and the dorsal gripping part 5b not forming the gather are overlapped, the overlapped peripheral edges are joined by the gather Ga of the ventral gripping part 5a. The space 5c into which the fingertip is inserted is formed all around the overlapped peripheral edge.

  The formation material of the pants-type disposable diaper 1B of 2nd Embodiment is demonstrated. About the diaper 1B of 2nd Embodiment, a different point from the formation material of the underpants type disposable diaper 1A of 1st Embodiment is demonstrated. The point which is not demonstrated especially is the same as that of the formation material of 1 A of diapers of 1st Embodiment, and the description of 1 A of pants-type disposable diapers of 1st Embodiment is applied suitably.

  As a cutter for cutting the elastic member 24 of the back side gripping part 5b, a combination of cutting teeth and receiving teeth such as a rotary die cut, a shear cutter, a pinch cutter, a heat seal cut, an ultrasonic seal cut, a pressure cut, a water jet cutter It can carry out using the cutting means used for absorbent articles, such as a disposable diaper. The cutting is preferably performed corresponding to the elastic member 24 of the dorsal gripping part 5b before the side seal part 4 is formed. When cutting after the formation of the side seal portion 4, the position of the elastic member 24 of the ventral gripping portion 5a in the Y direction is different from the position of the elastic member 24 of the dorsal gripping portion 5b in the Y direction. It is preferable to carry out corresponding to the elastic member 24 of the back-side grip 5b.

The effect at the time of using the underpants type disposable diaper 1B of 2nd Embodiment of this invention mentioned above is demonstrated.
About the effect of the diaper 1B of 2nd Embodiment, a different point from the effect of the diaper 1A of 1st Embodiment is demonstrated. The point which is not demonstrated in particular is the same as the effect of the diaper 1A of the first embodiment, and the description of the effect of the pants-type disposable diaper 1A of the first embodiment is applied as appropriate.

  In the diaper 1B of the second embodiment, as shown in FIGS. 5 and 6, the elastic member 24 of the back side gripping part 5b is divided into a plurality of pieces, and a gather is not formed on the back side gripping part 5b. Instead, gathers Ga are formed in the ventral gripping portion 5a. Therefore, the abdomen gripping part 5a naturally contracts in the width direction (X direction) in the product state, but the back gripping part 5b does not naturally expand and contract, so that a space 5c for inserting a fingertip is easily formed, and separation is easier. can do.

Next, a pants-type disposable diaper according to a third embodiment of the present invention will be described with reference to FIGS.
About the underpants type disposable diaper 1C of 3rd Embodiment (henceforth "diaper 1C"), a different point from the underpants type disposable diaper 1A of 1st Embodiment is demonstrated. The point which is not demonstrated in particular is the same as that of the pants-type disposable diaper 1A of the first embodiment, and the description of the pants-type disposable diaper 1A of the first embodiment is applied as appropriate.

  In the diaper 1C of the third embodiment, the gathers Ga and Gb are formed by the fact that no gathers are formed in any of the abdominal gripping part 5a and the dorsal gripping part 5b, and the uneven shape is formed by embossing. Different from the diaper 1A. This will be specifically described below.

  In the diaper 1C of the third embodiment, as shown in FIGS. 7 and 8, the abdomen gripping part 5a and the dorsal gripping part 5b have an uneven shape by embossing, and the space 5c of the gripping part 5 by the uneven shape. Is formed. In the diaper 1C, as shown in FIGS. 7 and 8, both of the abdominal gripping portion 5a and the dorsal gripping portion 5b have an uneven shape by embossing. Only one of the back-side grips 5b may have an uneven shape by embossing.

  In the diaper 1C of the third embodiment, the ventral side grip portion 5a of the ventral side sheet 2A and the back side gripping portion 5b of the back side seat 2B are arranged on the inner surface side of the outer layer sheet 22, as shown in FIG. The inner layer sheet 23 includes a grip portion forming extension portion 53 that is continuously extended outward in the width direction (X direction), and by embossing the grip portion formation extension portion 53, the ventral side grip portion 5a and An uneven shape is formed on each of the back-side grips 5b. As shown in FIGS. 7 and 8, the ventral side grip 2 a of the ventral sheet 2 </ b> A has an uneven shape, and the dorsal side sheet 2 </ b> B has an uneven shape. A gripping part 5 having a space 5c for inserting a fingertip is formed on the periphery of the overlapping part 5b. That is, in the gripping part 5, even if the abdominal gripping part 5a and the dorsal gripping part 5b are overlapped, the overlapping peripheries of the abdomen gripping part 5a and the dorsal gripping part 5b are overlapped. Are not joined, and a space 5c for inserting a fingertip is formed on the entire circumference of the overlapped peripheral edges.

  In the diaper 1C of the third embodiment, as shown in FIG. 8, the inner layer sheet 23 is arranged in the width direction (X in the ventral gripping part 5a of the ventral sheet 2A and the dorsal gripping part 5b of the dorsal seat 2B. Direction) The concave / convex shape formed by embossing is formed on the grip portion forming extension portion 53 continuously extending outward, but the outer layer sheet 22 extends continuously outward in the width direction (X direction). An uneven shape by embossing may be formed on the grip portion forming extension portion 52, and from the viewpoint of strength, the grip portion formation in which the outer layer sheet 22 continuously extends outward in the width direction (X direction). The extending portion 52 and the gripping portion forming extending portion 53 formed by continuously extending the inner layer sheet 23 outward in the width direction (X direction) are bonded together, and the uneven shape formed by embossing is applied to the bonded extending portion. May be formed.

  The forming material of the pants-type disposable diaper 1C of the third embodiment will be described. About the diaper 1C of 3rd Embodiment, a different point from the formation material of 1 A of underpants type disposable diaper of 1st Embodiment is demonstrated. The point which is not demonstrated especially is the same as that of the formation material of 1 A of diapers of 1st Embodiment, and the description of 1 A of pants-type disposable diapers of 1st Embodiment is applied suitably.

  The embossing that forms the concavo-convex shape can be performed using embossing means used for absorbent articles such as disposable diapers.

The effect at the time of using the underpants type disposable diaper 1C of 3rd Embodiment of this invention mentioned above is demonstrated.
About the effect of 1 C of diapers of 3rd Embodiment, a different point from the effect of 1 A of diapers of 1st Embodiment is demonstrated. The point which is not demonstrated in particular is the same as the effect of the diaper 1A of the first embodiment, and the description of the effect of the pants-type disposable diaper 1A of the first embodiment is applied as appropriate.

  In the diaper 1C of the third embodiment, as shown in FIGS. 7 and 8, the ventral gripping portion 5a has an uneven shape by embossing, and the back gripping portion 5b has an uneven shape by embossing. In particular, by having the concavo-convex shapes opposite to each other at the abdominal gripping portion 5a and the dorsal gripping portion 5b, a space 5c into which the fingertip is inserted is easily formed and can be separated more easily.

Next, the underpants type disposable diaper of 4th Embodiment of this invention is demonstrated based on FIG. 9, FIG.
About the underpants type disposable diaper 1D of 4th Embodiment (henceforth "diaper 1D"), a different point from the underpants type disposable diaper 1A of 1st Embodiment is demonstrated. The point which is not demonstrated in particular is the same as that of the pants-type disposable diaper 1A of the first embodiment, and the description of the pants-type disposable diaper 1A of the first embodiment is applied as appropriate.

  In the diaper 1D of the fourth embodiment, both the abdominal gripping portion 5a and the back gripping portion 5b are separate from the exterior body (the ventral seat 2A and the back seat 2B), and the width of the ventral gripping portion 5a. The point where the outer end in the direction (X direction) is folded inward is that the ventral side gripping part 5a and the back side gripping part 5b are outward in the width direction (X direction) of the ventral side seat 2A and the back side seat 2B, respectively. The diaper 1 </ b> A differs from the diaper 1 </ b> A in which the gather Ga is formed in the ventral gripping portion 5 a and the gather Gb is formed in the dorsal gripping portion 5 b. This will be specifically described below.

  In the diaper 1D of the fourth embodiment, as shown in FIGS. 9 and 10, the abdomen gripping portion 5a is formed of a sheet material 54 that is separate from the abdomen sheet 2A, and the width of the abdomen sheet 2A. One end of the side seal portion 4 near the center line CL in the width direction (X direction) of the sheet material 54 is on the outer layer sheet 22 of the ventral sheet 2A so as to extend outward in the direction (X direction). It is fixed. Further, as shown in FIGS. 9 and 10, the dorsal side grip portion 5b is formed of a sheet material 55 separate from the dorsal side seat 2B, like the ventral side grip portion 5a. In the side seal portion 4, one end portion near the center line CL in the width direction (X direction) of the sheet material 55 is on the outer layer sheet 22 of the back seat 2 </ b> B so as to extend outward in the width direction (X direction). It is fixed to.

  In the diaper 1D of the fourth embodiment, as shown in FIGS. 9 and 10, the other end portion in the width direction (X direction) of the ventral gripping portion 5a is folded inward, and the other end portion is folded. As a result, a space 5c of the grip portion 5 is formed. Specifically, in the diaper 1D of the fourth embodiment, as shown in FIGS. 9 and 10, the other end portion in the width direction (X direction) of the sheet material 54 that forms the ventral gripping portion 5a is the inner side. The other end of the sheet material 54 in the width direction (X direction) is fixed to the inner surface of the sheet material 54, and a loop 56 is formed at the other end of the ventral gripping portion 5a. As shown in FIGS. 9 and 10, since the loop 56 is formed at the other end of the ventral gripping portion 5a of the ventral sheet 2A, the peripheral edge where the ventral gripping portion 5a and the dorsal gripping portion 5b are overlapped. Among these, in the Y direction, a grip portion 5 having a space 5c for inserting a fingertip is formed. That is, in the gripping part 5, even if the abdominal gripping part 5a and the dorsal gripping part 5b are overlapped, the overlapped peripheral edges are not joined by the loop 56 of the ventral gripping part 5a. A space 5c for inserting a fingertip is formed in at least the Y direction of the combined peripheral edges.

  In the diaper 1D of the fourth embodiment, as shown in FIG. 10, the other end of the abdomen gripping part 5a disposed on the abdomen seat 2A is folded inward, but the back sheet 2B The other end of the rear-side grip portion 5b may be folded inward, and the other side of the ventral-side grip portion 5a disposed on the ventral seat 2A and the back side disposed on the back-side seat 2B Each of the other end portions of the grip portion 5b may be folded inward.

  The forming material of the pants-type disposable diaper 1D of the fourth embodiment will be described. About the diaper 1D of 4th Embodiment, a different point from the formation material of the underpants type disposable diaper 1A of 1st Embodiment is demonstrated. The point which is not demonstrated especially is the same as that of the formation material of 1 A of diapers of 1st Embodiment, and the description of 1 A of pants-type disposable diapers of 1st Embodiment is applied suitably.

  As the sheet material 54 for forming the abdomen gripping part 5a and the sheet material 55 for forming the dorsal gripping part 5b, which are separate from the exterior body (the abdomen sheet 2A and the back sheet 2B), the abdomen sheet 2A and the back The same material as the outer layer sheet 22 and the inner layer sheet 23 constituting the sheet 2B can be used.

  For fixing the exterior body (the ventral sheet 2A and the dorsal sheet 2B) to the sheet material 54 for forming the ventral gripping part 5a and the sheet material 55 for forming the dorsal gripping part 5b, a disposable diaper or the like is usually used. Adhesives used for absorbent articles, fusing means such as heat embossing, ultrasonic embossing, and high-frequency embossing are used.

The effect at the time of using the underpants type disposable diaper 1D of 4th Embodiment of this invention mentioned above is demonstrated.
About the effect of the diaper 1D of 4th Embodiment, a different point from the effect of the diaper 1A of 1st Embodiment is demonstrated. The point which is not demonstrated in particular is the same as the effect of the diaper 1A of the first embodiment, and the description of the effect of the pants-type disposable diaper 1A of the first embodiment is applied as appropriate.

  In the diaper 1D of the fourth embodiment, as shown in FIGS. 7 and 8, the other end portion in the width direction (X direction) of the abdominal gripping portion 5a is folded inward, and the other end portion is folded. As a result, the space 5c of the grip portion 5 is formed, so that the end portion can be easily gripped. Moreover, even if the grip part 5 is pulled, it is difficult to extend and the side seal part 4 is easily torn.

  The pants-type disposable diaper which is the pants-type absorbent article of the present invention is not limited to the pants-type disposable diapers of the first, second, third and fourth embodiments described above, and can be changed as appropriate. . Moreover, each component in the underpants type disposable diaper of above-mentioned 1st, 2nd, 3rd, 4th embodiment can be implemented in combination suitably, in the range which does not impair the meaning of this invention.

  For example, in the pants-type disposable diapers 1A, 1B, 1C, and 1D of the first, second, third, and fourth embodiments described above, as shown in FIG. 2, the abdominal sheet member 2A and the back sheet member 2B. A pants-type disposable diaper in which the exterior body is divided into two, but a pants-type disposable diaper that is not divided may also be used.

  In the pants-type disposable diapers 1A, 1B, 1C, and 1D of the first, second, third, and fourth embodiments described above, as shown in FIGS. 1 and 2, a pair of side seal portions 4, 4 is used. Each has a gripping portion 5 extending outward in the width direction (X direction) from the side seal portion 4, but the gripping portion 5 may be formed only on one side seal portion 4.

  In the pants-type disposable diapers 1A, 1B, 1C, and 1D of the first, second, third, and fourth embodiments described above, as shown in FIGS. The gripping part 5a and the dorsal gripping part 5b extend outward in the width direction (X direction). For example, the ventral gripping part 5a and the dorsal gripping part 5b are arranged on the ventral part A side or the dorsal part B side. You may be defeated. Specifically, in the pants-type disposable diaper 1D of the fourth embodiment, as shown in FIG. 11, the dorsal gripping portion 5b is placed on the ventral portion A side so as to cover the ventral gripping portion 5a having the loop 56. The other end portion of the sheet material 55 for forming the back side gripping portion 5b may be fixed on the outer layer sheet 22 of the abdominal side sheet 2A.

  In the pants-type disposable diapers 1A, 1B, 1C, and 1D of the first, second, third, and fourth embodiments described above, as shown in FIGS. Although the shape of the holding part 5a and the back side holding part 5b is substantially the same, it does not need to be the same. For example, a notch having a convex shape from the outer end in the width direction (X direction) toward the center line CL may be formed in the ventral gripping part 5a or the dorsal gripping part 5b.

  The pant-type absorbent article may be a pants-type sanitary napkin or the like in addition to a pants-type disposable diaper for infants or adults.

1A, 1B, 1C, 1D Pants-type disposable diaper 2A Ventral sheet 20A Ventral sheet body 200 Lower edge 20 of abdominal sheet body Side edge part 21A of abdominal sheet body 21A Ventral extension part 201 Ventral extension part 201 Lower edge 21a Side edge portion 2B of the ventral side extension portion Back side seat 20B Back side seat body 200 Lower edge of the back side seat body 20b Side edge portion of the back side seat body 21B Back side extension portion 201 Back side extension portion Lower edge 21b Side edge portion of back extension portion 22 Outer layer sheet 23 Inner layer sheet 24 Elastic member 3 Absorbent body 3a End portion of absorbent body in longitudinal direction (Y direction) 3b Longitudinal direction of absorbent body (Y direction) ) Side surface 31 surface sheet 32 back sheet 33 absorber 34 elastic member 35 side cuff 4 side seal part 5 grip part 5a ventral side grip part 5b back side grip part 5c space 52, 53 grip part Formed extension 54,55 Sheet material 56 Loop A Abdominal side, B Dorsal side, C Crotch CL Center line extending in the longitudinal direction of the diaper, CT Diaper center

Claims (7)

An exterior body, and an absorbent main body fixed to the inside of the exterior body, wherein the exterior body is disposed on the stomach side of the wearer when worn, and on the back side of the wearer when worn A pants-type absorbent article having a pair of side seal portions formed by joining both side edges of the abdominal side and the back side.
The side seal part has a grip part extending outward in the width direction from the side seal part,
The grip portion includes a ventral side grip portion extending from a side edge portion of the abdominal side portion of the exterior body and a back side grip portion extending from a side edge portion of the back side portion of the exterior body. The ventral gripping part and the dorsal gripping part are overlapped, and there is a space for inserting a fingertip into at least a part of the periphery of the abdominal gripping part and the dorsal gripping part overlapped. Pants-type absorbent article.   The abdominal gripping part and / or the back gripping part has an elastic member arranged in an expanded state in the width direction of the pant-type absorbent article, and forms a gather by contraction of the elastic member, The pants-type absorbent article according to claim 1, wherein the space of the grip portion is formed by forming the gathers.   Each of the ventral gripping portion and the dorsal gripping portion has the elastic member, and the stretch rate of the elastic member of the ventral gripping portion is different from the stretch rate of the elastic member of the dorsal gripping portion. The underpants type absorbent article according to claim 2.   Each of the ventral gripping portion and the dorsal gripping portion has the elastic member, and the elastic member of the ventral gripping portion or the elastic member of the dorsal gripping portion is divided into a plurality of parts. Item 3. A pants-type absorbent article according to Item 2.   2. The pant-type absorbent article according to claim 1, wherein the ventral grip portion and / or the back grip portion has an uneven shape by embossing, and the space of the grip portion is formed by the uneven shape.   The outer end in the width direction of the abdominal gripping part and / or the outer end in the width direction of the dorsal gripping part are folded inward, and the gripping is achieved by folding the outer end. The underpants type absorbent article according to claim 1, wherein the space of the part is formed.   The pant-type absorbent article according to any one of claims 1 to 6, wherein the abdomen gripping part and the dorsal grip part are separate from the exterior body.

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