CN104619298B - Disposable diaper - Google Patents

Abstract

A kind of disposable diaper (1), it has length direction and the width intersected with described length direction, and described disposable diaper includes: absorber (21), and described absorber absorbs liquid；Side flap (14), described side flap is positioned at the both sides of described width；nullAnd telescoping member (27)，Described telescoping member is stretched along described length direction，End edge portion (14Lg) outside the described width of described side flap (14) has a shape part of crawling of the shape that crawls as follows: the protuberance (143a protruded outside described width、145a、Recess (143b 147a) and caved in outside described width、145b、147b) on described length direction alternately and repeatedly，Described telescoping member (27) is arranged on inner side (L1) or than this inner side (L1) position in the inner part on described width，Described inner side is from described recess (143b、145b、Recess summit (145d) 147b) is spaced apart summit spacing (w1) to inner side，Described summit spacing (w1) is described recess summit (145d) and described protuberance (143a、145a、The distance on described width between protuberance summit (145c) 147a).

Description

Disposable diaper

Technical field

The present invention relates to a kind of disposable diaper.

Background technology

Traditionally, opening (open-type) disposable diaper is widely used.Due to this opening Type disposable diaper can easily put on and take off, and the most this disposable wearing article is used widely In particularly neonate and infant.

Prior art literature

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 11-47189

Summary of the invention

The problem that invention is to be solved

In disposable wearing article, easily wear and take off diaper, but, the lower limb when wearing diaper The sense of touch of peripheral part is likely to become problem.Especially, when disposable diaper is worn on the wearer, In the case of the adaptability of lower limb peripheral part is too tight, may there is the situation that wearer does not feels well.

The present invention makes in view of the above problems, it is an object of the invention to provide one and has good sense of touch Disposable diaper.

For solving the scheme of problem

An aspect of of the present present invention is a kind of disposable diaper, its have length direction and with described length direction The width intersected, described disposable diaper includes:

Absorber, described absorber absorbs liquid；

Side flap, described side flap is positioned at the both sides of described width；And

Telescoping member, described telescoping member is flexible along described length direction,

End edge portion outside the described width of described side flap has the shape that crawls of the shape that crawls as follows Part: the protuberance and the recess caved in outside described width that protrude outside described width exist On described length direction alternately and repeatedly,

Described telescoping member is arranged on inner side or more inner than this inner side on described width The position of side, described inner side from the recess summit of described recess to inner side spaced apart summit spacing, Described summit spacing be between described recess summit and the protuberance summit of described protuberance at described width Distance on direction.

By the record of the specification and drawings, other features of the present invention will be clear from.

The effect of invention

In accordance with the invention it is possible to provide a kind of disposable diaper with good sense of touch.

Accompanying drawing explanation

Fig. 1 is the expansion plane graph of the diaper 1 according to present embodiment.

Fig. 2 A to Fig. 2 C is the decomposition explanatory diagram in each portion of the diaper 1 according to this embodiment.Before Fig. 2 A is The decomposition explanatory diagram in portion 3.Fig. 2 B is the decomposition explanatory diagram of crotch 5.Fig. 2 C is the decomposition explanatory diagram at rear portion 7.

Fig. 3 is to illustrate the front view of the form of diaper 1 when wearing.

Fig. 4 is to illustrate the side view of the form of diaper 1 when wearing.

Fig. 5 is the schematic plan of the structure that side flap 14 and periphery thereof according to this embodiment are described Figure.

Fig. 6 is the regarding of end edge portion 14Lg illustrating the side flap 14 according to this embodiment in an exaggerated way Figure.

Fig. 7 is for the superiority produced owing to the configuration of the rubber thread 27 according to this embodiment is described First explanation schematic diagram.

Fig. 8 is for the superiority produced owing to the configuration of the rubber thread 27 according to this embodiment is described Second explanation schematic diagram.

Fig. 9 is that the schematic of structure that side flap 14 and its periphery according to the second embodiment are described is put down Face figure.

Figure 10 is structure schematic that side flap 14 and its periphery according to the 3rd embodiment are described Plane graph.

Detailed description of the invention

By the record of the specification and drawings, at least problems with will be made to become clear and definite.

A kind of disposable diaper, it has length direction and the width intersected with described length direction, Described disposable diaper includes:

Absorber, described absorber absorbs liquid；

Side flap, described side flap is positioned at the both sides of described width；And

Telescoping member, described telescoping member is flexible along described length direction,

End edge portion outside the described width of described side flap has the shape that crawls of the shape that crawls as follows Part: the protuberance and the recess caved in outside described width that protrude outside described width exist On described length direction alternately and repeatedly,

Described telescoping member is arranged on inner side or more inner than this inner side on described width The position of side, described inner side from the recess summit of described recess to inner side spaced apart summit spacing, Described summit spacing be between described recess summit and the protuberance summit of described protuberance at described width Distance on direction.

According to this disposable diaper, not only there is the mountain portion of protuberance crest line but also also there is recess crest line Mountain portion be capable of sufficiently buffering (cushion) effect, and can provide there is good sense of touch Disposable diaper.

It is rubber thread for this disposable diaper, preferably telescoping member.

According to this disposable diaper, it is possible to the bonding area making telescoping member arrive disposable diaper keeps Little, thus also be able to make the impact on sense of touch keep minimum.Sense of touch more it is satisfied with therefore, it is possible to provide to have Disposable diaper.

For this disposable diaper, preferably:

Described side flap has to be provided with the leakage prevention sheet setting unit of leakage prevention sheet and be positioned at described leakage prevention sheet and sets Put the leakage prevention sheet outside the described width in portion and be not provided with portion,

The border that described leakage prevention sheet setting unit and described leakage prevention sheet are not provided with between portion is positioned at described recess top Inside the described width of point, on the described width between described recess summit and described border Border, summit spacing equals to or more than the twice of described summit spacing,

Described rubber thread be arranged on described width described recess summit and described border in institute State the center on width and between described border.

According to this disposable diaper, it is possible to form the mountain portion with longer recess crest line.Thus, it is possible to Give the buffering effect that skin is more appropriate, and can provide there is the disposable diaper being more satisfied with sense of touch.

Utilize this disposable diaper, preferably:

Described disposable diaper includes the rivel portion, lower limb side forming and having fulcrum along described length direction,

Wherein, described side flap has and is provided with the leakage prevention sheet setting unit of leakage prevention sheet and is positioned at described leakproof Leakage prevention sheet outside the described width of sheet setting unit is not provided with portion,

The border that described leakage prevention sheet setting unit and described leakage prevention sheet are not provided with between portion is positioned at described recess top Inside the described width of point,

Described fulcrum is positioned at inside the described width on described border,

Described rubber thread is arranged between described border and described fulcrum on described width.

According to this disposable diaper, even if Excreta crosses the fulcrum outer sidesway on product width direction Dynamic, before arriving rubber thread, also there is leakage prevention sheet, thus, Excreta No leakage ground arrive rubber thread and And stopped by rubber thread.Thus, it is possible to suitably prevent liquid from leaking.

For this disposable diaper, preferably:

Described disposable diaper includes the rivel portion, lower limb side forming and having fulcrum along described length direction,

Wherein, described rubber thread is arranged on the inner side of described fulcrum on described width.

According to this disposable diaper, it is possible to be suitably visually confirmed to be the appearance in rivel portion, lower limb side from outside. Thus, it is possible under this disposable diaper is in wearing effect and without moving the feelings of wearer inadvertently Excremental inspection is performed under condition.

For this disposable diaper, preferably:

Rivel portion, described lower limb side has the summit, inner side being positioned at inside the described width of described fulcrum,

Rivel portion, described lower limb side from described fulcrum to the described fulcrum of the part on summit, described inner side near Part be made up of the sheet material only with a layer.

According to this disposable diaper, the part near fulcrum is can first to see excremental position, because of And, by only making the part near fulcrum with a layer of sheet material, it is possible to more easily carry out excremental Check.

For this disposable diaper, preferably:

Rivel portion, described lower limb side has the summit, inner side being positioned at inside the described width of described fulcrum,

Fulcrum medial roof dot spacing on described width between described fulcrum and summit, described inner side From than the fulcrum protuberance summit spacing on the described width between described fulcrum and described protuberance summit From greatly.

According to this disposable diaper, it is projected into the outside of the end edge portion in the direction of the width of side flap Part be formed at rivel portion, lower limb side at least some of in, thus this part is can be particularly easy to see row Let out the position of thing.Thus, it is possible to more easily carry out excremental inspection.

For this disposable diaper, preferably:

Described shape part of crawling is that length direction crawls shape part,

Described side flap has when wearing described disposable diaper the front portion of the veutro being positioned at wearer, position In the rear portion of dorsal part of wearer and crotch between described anterior and described rear portion,

Described rear portion is provided with rear portion protuberance, and described rear portion protuberance is towards described width lateral process Go out and there is the rear portion outermost end along described length direction,

Described rear portion protuberance is provided with fixing band,

Described end edge portion has non-length direction and crawls shape part, and described non-length direction shape part of crawling is Crawl shape as follows: in the rear the anterior side of the forefront side on the described length direction of portion's outermost end and Described length direction crawls between shape part, and described protuberance and described recess are relative to described length direction On the direction tilted alternately and repeatedly,

The end of the rear portion side of described rubber thread is positioned at the rear portion of described anterior side on described length direction Side and the toe lateral of described fixing band.

According to this disposable diaper, being arranged at the crawl mountain portion of shape part of non-length direction can be formed as There is the mountain portion of recess crest line, thus, it is possible to skin is applied more appropriate buffering effect, using the teaching of the invention it is possible to provide There is the diaper of more satisfying sense of touch.Furthermore it is possible to prevent from forming too much wrinkle in fixing band (crease), it is possible to prevent the merit loss of energy of fixing band.

For this disposable diaper, preferably:

Described side flap has when wearing described disposable diaper the front portion of the veutro being positioned at wearer, position In the rear portion of dorsal part of wearer and crotch between described anterior and described rear portion,

Described front portion is provided with anterior protuberance, and described anterior protuberance is towards described width lateral process Go out and there is the anterior outermost end along described length direction,

The end of the toe lateral of described rubber thread is positioned at the institute of described anterior outermost end on described length direction State the rear portion side of the rear portion side of rearmost part side on length direction.

According to this disposable diaper, it is possible to prevent from forming too much folding in the engaging zones of fixing band Wrinkle, and it is prevented from the merit loss of energy of fixing band.

===according to the disposable diaper of present embodiment===

The disposable diaper (hereinafter referred to as diaper 1) of present embodiment is that one is mainly directed towards neonate And infant is as the disposable diaper of wearer, and it is preferably used for body weight equal to or less than 3000g Low birthweight infant particularly preferably be less than the low birth weight infant of 2500g for body weight.It should be noted that , low birthweight infant not only includes low birth weight infant (body weight is less than 2500g), also includes extremely low birth Body weight youngster (body weight is less than 1500g) and Extremely low birth weight infant (body weight is less than 1000g).

Fig. 1 is the expansion plane graph of the diaper 1 according to this embodiment.Fig. 2 A to Fig. 2 C is according to this reality Execute the decomposition explanatory diagram in each portion of the diaper 1 of mode.Fig. 2 A is the decomposition explanatory diagram of anterior 3.Fig. 2 B is The decomposition explanatory diagram of crotch 5.Fig. 2 C is the decomposition explanatory diagram at rear portion 7.Fig. 3 is to illustrate diaper 1 when wearing The front view of form.Fig. 4 is to illustrate the side view of the form of diaper 1 when wearing.

The diaper 1 of this embodiment is so-called disposable wearing article, as it is shown in figure 1, diaper has Front portion 3, crotch 5 and rear portion 7.Anterior 3 is the front portion (veutro, health is anterior) that will be located in wearer Part.Additionally, rear portion 7 is the part at the rear portion (dorsal part, health rear portion) that will be located in wearer.Crotch Portion 5 is to will be located in the part between anterior 3 and rear portion 7.

In the following description, as it is shown in figure 1, define all directions.In other words, from anterior 3 towards rear portion The direction of 7 is referred to as " product length direction L ", and the direction vertical with product length direction L is referred to as " producing Product width W ".CL in Fig. 1 is the line at the center on the L of product length direction illustrating diaper 1. Additionally, as in figure 2 it is shown, the direction vertical with product length direction L and product width direction W is referred to as " thickness direction ", the skin side of wearer is referred to as " skin side ", and the opposition side of skin side is referred to as " non- Skin side ".

Diaper 1 has central belt-like zone 12, side flap 14, rivel portion, lower limb side 16 and waist rivel portion 18. Each of which in side flap is provided with fixing band 30 in pairs.

Central authorities' belt-like zone 12 is in the belt-like zone of the central part on the W of product width direction, and it is by front Portion 3, crotch 5 and rear portion 7 constitute (seeing Fig. 1).Central authorities belt-like zone 12 be absorb and keep such as by The part of the liquid of the urine etc. of wearer's excretion.Central authorities' belt-like zone 12 is for including having liquid retainability The elongate shape (along the shape of product length direction L) of absorber 21.Central authorities' belt-like zone 12 is main There is absorber 21, top sheet 22, leakage prevention sheet 23 and back sheet 24 (seeing Fig. 2 A to Fig. 2 C).

Absorber 21 is the excremental liquid-absorbent raw material that can be absorbed such as urine etc. by stacking The component made, absorber 21 is arranged in front portion 3, crotch 5 and rear portion 7.It is shown as shadow part in FIG The region divided illustrates the region occupying absorber 21.During absorber 21 has on the L of product length direction The hourglass shape of the narrowed width in centre portion.But, the shape of absorber 21 is not limited to the shape shown in Fig. 1 Shape, can be simple rectangle.Additionally, absorber 21 can be arranged at least crotch 5.Absorber 21 It is arranged between top sheet 22 and leakage prevention sheet 23.Such as, the liquidabsorbing fibres of such as paper pulp fiber etc. And the liquid-absorbent shot-like particle of such as high-absorbable polymer etc. can serve as constituting absorber 21 Liquid absorptive material.Furthermore, it is possible to include except liquidabsorbing fibres and liquid-absorbent shot-like particle Liquid absorptive material in addition.

Front portion 3 in the crotch 5 of absorber 21 both ends on the W of product width direction has been formed about A pair tuck portion (dart portion) 211f.Similarly, a pair tuck portion 211b is formed at product width Near rear portion 7 in both ends on the W of direction.Tuck portion 211f and 211b be as shown in Figure 1 in substantially The narrow of the breach of dome shape.By this way, absorber 21 can in region, tuck portion easily Bending, and also circular size can be easily deformed to adapt to the health (crotch) of wearer, energy Enough improve the adaptability of diaper 1.It should be noted that, the shape of tuck portion 211f and 211b is not limited to Fig. 1 Shown in shape.

It should be noted that, for diaper 1, with inguinal central part and the center of crotch 5 of wearer The consistent mode in portion sets the position of crotch 5.In at the inguinal central part lower limb root of wearer Position, centre, and be biased into the toe lateral of the center CL on the L of product length direction of diaper 1 Position (sees Fig. 1).Owing to the centre of crotch 5 is in the toe lateral of the center CL of diaper 1, wear His/her lower limb easily can be moved to front side (veutro) by the person of wearing, furthermore it is possible to after making diaper 1 The area in portion 7 is relatively wide so that the buttocks of wearer can be adequately covered.

Top sheet 22 is disposed on the liquid permeability component of the skin side of absorber 21.Leakage prevention sheet 23 is disposed on The liquid-impermeable component of the non-skin side of absorber 21.Back sheet 24 is the non-skin side constituting diaper 1 Outside component (outer plate), and be made up of such as non-woven fabrics.Back sheet 24 is arranged in leakage prevention sheet 23 Non-skin side (seeing Fig. 2 A to Fig. 2 C).

In the crotch 5 of central authorities' belt-like zone 12, Flexible film 25 be arranged in absorber 21 and back sheet 24 it Between.Flexible film 25 is the component that retractility puts on central authorities' belt-like zone 12 of crotch 5.In this enforcement In mode, Flexible film 25 is mounted with the state of stretching on the L of product length direction.By this way, Flexible film 25 shows the contraction along product length direction L of the crotch 5 relative to central authorities' belt-like zone 12 Power.When wearing diaper 1, crotch 5 is shunk along product length direction L, thus at above-mentioned tuck portion 211f With under the effect of 211b, central authorities' belt-like zone 12 is three-dimensionally deformed into round-shaped to adapt to the body of wearer Body.By this way, central authorities' belt-like zone 12 keeps the shape of the crotch around wearer, thus improves The adaptability of diaper 1, it is possible to easily suppression Excreta drains to the outside of diaper 1.

Side flap 14 is in the part of two sidepieces on the W of product width direction of diaper 1, changes speech It, side flap is in the part of the both sides on the W of product width direction of central authorities' belt-like zone 12.Side Fin 14 is formed at front portion 3, crotch 5 and rear portion 7 (seeing Fig. 1).Producing of side flap 14 in crotch 5 Length (width) on the product width W side flap 14 than anterior 3 and in rear portion 7 in product width Length (width) on the W of direction is narrow.Additionally, the rear portion 7 of side flap 14 on product width direction Length wb than length wf on the W of product width direction long (seeing Fig. 1) of the front portion 3 of side flap 14.

Side flap is mainly constituted (seeing Fig. 2 A to Fig. 2 C) by skin lateral plate 26 and back sheet 24.Skin Lateral plate 26 is formed at front portion 3, crotch 5 and the skin side component at rear portion 7, and such as, skin lateral plate 26 is It is made up of non-woven fabrics.Skin lateral plate 26 is the component constituting rivel portion, lower limb side 16 (three-dimensional rivel portion), The part (part in the outside of the junction surface 26A of the thick dashed line in Fig. 1) in the outside of skin lateral plate 26 is constituted Side flap 14.

Being each provided with along leg gather pleat flexible for product length direction L in paired side flap 14 Portion 15 (pars contractilis around lower limb).It is configured with edge between the skin lateral plate 26 and back sheet 24 of side flap 14 The flexible rubber thread 27 of product length direction L, retractility is put on the skin side of crotch 5 by rubber thread 27 Sheet 26 and back sheet 24, so constitute leg gather pleat portion 15.It should be noted that, will be explained in side after a while Fin 14 and rubber thread 27.

Rivel portion, lower limb side 16 is the three-dimensional rivel portion of the clearance leakage preventing liquid around lower limb.In front portion 3, Crotch 5 and rear portion 7 are along product length direction L-shaped lower limb side rivel portion 16 (seeing Fig. 1) in a pair.To cover The mode of the two edges of the central belt-like zone 12 of the inner side of lid side flap 14 forms rivel portion, lower limb side 16.

(the seeing Fig. 2) that rivel portion, lower limb side 16 is mainly made up of the part of the inner side of skin lateral plate 26.Skin Skin lateral plate 26 (rivel portion, lower limb side 16) is bonded on central authorities' belt-like zone 12 and side along product length direction L Junction surface 26A (thick dashed line in Fig. 1) between fin 14.The junction surface 26A's of skin lateral plate 26 is interior The region of side constitutes rivel portion, lower limb side 16 (three-dimensional rivel portion), and (changes using junction surface 26A as fulcrum 16a Yan Zhi, the position of fulcrum 16a on the W of product width direction with central authorities belt-like zone 12 and side flap 14 it Between the position consistency on border).In other words, lower limb side rivel portion 16 (three-dimensional rivel portion) has fulcrum 16a With summit, the inner side 16b of the inner side on the W of product width direction being positioned at fulcrum 16a, fulcrum 16a is to interior Part (skin lateral plate 26) between the 16b of summit, side erects from fulcrum 16a.

Additionally, the skin of part 16c near fulcrum of part between fulcrum 16a to summit, inner side 16b The number of plies of the skin lateral plate 26 of the number of plies of skin lateral plate 26 and part 16d near summit, inner side is the most not With.In other words, part 16d near summit, inner side of skin lateral plate 26 is turned back, thus this number of plies is Two-layer.The telescoping member of such as rubber thread etc. is arranged between aforementioned two-layer.Therefore, the skin of crotch 5 The inner edge of lateral plate 26 has retractility.On the other hand, part 16c near fulcrum is only by one layer of skin side Sheet 26 is made.

Waist rivel portion 18 is the waist circumference pars contractilis in rear portion 7 along product width direction W configuration (seeing Fig. 1).In rear portion 7, waist rivel portion film 28 is arranged between absorber 21 and back sheet 24 (seeing Fig. 2 C).Waist rivel portion film 28 is along banding telescoping member flexible for product width direction W. Retractility is put on such as back sheet 24 by waist rivel portion film 28, so constitutes waist rivel portion 18.Waist The length on the W of product width direction of rivel portion of portion film 28 is longer than absorber 21.Thus, waist rivel Portion 18 is formed as being projected into the outside on the W of product width direction from absorber 21.It should be noted that, It is not necessary to arrange waist rivel portion 18.

Fixing band 30 is installed to the side flap 14 at rear portion 7 and (specifically, is installed to the rear portion after a while by explanation Protuberance 14b) (seeing Fig. 1).By a part for fixing band 30 being clipped in the skin constituting side flap 14 Fixing band 30 (seeing Fig. 2 C) is installed between lateral plate 26 and back sheet 24.

Object tape 29 is arranged on anterior 3 (seeing Fig. 1).Object tape 29 is arranged in the back sheet 24 of anterior 3 Non-skin side (sees Fig. 2 A).Object tape 29 is the component that can engage with fixing band 30, and such as by Non-woven fabrics is formed.Object tape 29 constitutes the target area engaged with fixing band 30.It should be noted that, remove Object tape 29 is configured to the non-skin side of back sheet 24, and target area can also be formed at back sheet 24 Outermost non-woven fabrics on.

Then, as shown in Figure 3 and Figure 4, fixing band 30 is engaged to object tape 29 or other fixing bands 30, Thus put on diaper 1.

The product length on the L of product length direction of the diaper 1 of the low birthweight infant in this embodiment (product size in the longitudinal direction under the extended state not having wrinkle) is at 210mm to 330mm Scope.Such as, the product length of the diaper 1 of the body weight low birth weight infant less than 2500g is 310mm.The product length of the diaper 1 of the body weight very low birth weight infant less than 1500g is 270mm. The product length of the diaper 1 of the body weight Extremely low birth weight infant less than 1000g is 230mm.

Additionally, the waist sizes of the diaper 1 of low birthweight infant in present embodiment is at 160mm extremely The scope of 295mm.It should be noted that, waist sizes be a fixing band 30 end with another Opened up under the state that the end of side flap 14 side in the hook tabs region of fixing band 30 coordinates and at product Size under the state opened and do not have wrinkle.In other words, described size is that product is drawn in the direction of the width Size under the state stretched.Such as, the waist sizes of the diaper 1 of low birth weight infant is 273.5mm, The waist sizes of the diaper 1 of the body weight Extremely low birth weight infant less than 1500g is 220mm.

<according to the structure of the side flap 14 of this embodiment>

Fig. 5 is the schematic plan of the structure that side flap 14 and periphery thereof according to this embodiment are described Figure.As it has been described above, the side flap 14 of this embodiment is the lengthwise portion along product length direction L, And mainly it is made up of skin lateral plate 26 and back sheet 24.

The front portion 3 of side flap 14 is provided with prominent towards the front portion protruding outside on the W of product width direction Go out portion 14f.In the protuberance 14f of this front portion, the outermost end on the W of product width direction is along product Product length direction L.In other words, anterior protuberance 14f has the anterior outermost along product length direction L End 14fa.Similarly, in the rear portion 7 of side flap 14, it is provided with towards on the W of product width direction Rear portion protuberance 14b protruding outside.In the protuberance 14b of this rear portion, on the W of product width direction Outermost end is along product length direction L.In other words, protuberance 14b in rear portion has along product Rear portion outermost end 14ba of length direction L.Fixing band 30 is arranged at rear portion protuberance 14b, utilizes fixing band On the anterior protuberance 14f of 30 section that rear portion protuberance 14b overlap is fixed on wearer.

Between the anterior protuberance 14f and rear portion protuberance 14b of side flap 14 at product width direction W On outboard end region be to be formed by the end edge portion 14Lg in the lower limb circumferential openings portion forming diaper 1.Should End edge portion 14Lg in embodiment is formed at from anterior 3 to rear portion 7 centered by crotch 5, and be as Under crawl shape shape: multiple protuberances that the outside on the W of product width direction is protruded and to product width side Multiple recesses of the outside depression on W are alternately and repeatedly.In Figure 5, multiple protuberance 145a and multiple recessed Portion 145b is formed at the crotch 5 of end edge portion 14Lg.Similarly, the front portion 3 of end edge portion 14Lg is formed multiple Protuberance 143a and multiple recess 143b, the rear portion 7 of end edge portion 14Lg is formed with multiple protuberance 147a and multiple Recess 147b.

Fig. 6 is the end edge portion 14Lg illustrating the side flap 14 according to this embodiment in the way to enlarge Figure.End edge portion 14Lg has five protuberance 145a and five recess 145b in the region of crotch 5.Each convex Portion 145a and recess 145b has the slight curving of predetermined curvature and is so-called R shape, and is formed The curvature of the most about R=6mm-10mm.In this embodiment, five protuberance 145a are respectively formed identical Curvature, five recess 145b are respectively formed identical curvature.In other words, it is formed in the region of crotch 5 Protuberance and recess be all of similar shape.

Additionally, each protuberance 145a and recess 145b configures along product length direction L linearly position relationship. In other words, in the region of the crotch 5 of end edge portion 14Lg, each recess summit 145d of five recess 145b It is respectively positioned on the same position on the W of product width direction, as shown in Figure 6, is located along product length direction L Same straight line on.Similarly, the protuberance summit 145c of five protuberance 145a is respectively positioned in product width side Same position on W, and be located along on the same straight line of product length direction L.By this way, End edge portion 14Lg has (in the longitudinal direction) of the shape that crawls as follows in crotch 5 and crawls shape part: The protuberance 145a that outside on the W of product width direction is protruded and the outside on the W of product width direction Depression recess 145b on the L of product length direction alternately and repeatedly.In figure 6, recess summit 145d and convex The summit spacing on the W of product width direction between the 145c of summit, portion is length w1.The length of w1 The most about 2mm.

It should be noted that, protuberance 145a and the shape of recess 145b, size, configuration quantity etc. are not limited to Example shown in Fig. 5 and Fig. 6, and can according to the different size of target wearer and diaper 1 suitably Change.

In Figure 5, two protuberance 143a and two recess 143b are formed at the district of front portion 3 of end edge portion 14Lg In territory.Protuberance 143a and recess 143b and protuberance 145a and recess 145b is respectively provided with roughly the same structure Make.But, in the region of anterior 3, the shape of crawling being formed with protuberance 143a and recess 143b differs Surely to become along product length direction L-shaped.In other words, the shape of crawling of end edge portion 14Lg is relative to product Length direction L can be to tilt or bending.

Three protuberance 147a and three recess 147b it are formed with in the region at the rear portion 7 of end edge portion 14Lg. In this region, end edge portion 14Lg along with towards the rear portion side on the L of product length direction near and towards Outside on the W of product width direction broadens, and is that the inclination relative to product length direction L is crawled shape Shape.In other words, end edge portion 14Lg has following on non-length direction (incline direction) in rear portion 7 Shape part of crawling: protuberance 147a that outside on the W of product width direction is protruded and to product width side The recess 147b of the outside depression on W hands on the direction tilted relative to product length direction L repeatedly Replace.It is to say, end edge portion 14Lg in aforesaid rear portion outermost end 14ba along the L of product length direction The anterior side 14bb of forefront side and crawling in the longitudinal direction have in non-length between shape part Shape part of crawling on degree direction.It should be noted that, as shown in Figure 6, it is arranged in the region at rear portion 7 Three protuberance 147a and recess 147b be respectively provided with difformity (curvature and size).

Have been described that the structure of the side flap 14 mainly formed, flank by skin lateral plate 26 and back sheet 24 A part for sheet 14 is additionally provided with above-mentioned leakage prevention sheet 23.As it is shown in figure 1, leakage prevention sheet 23 has rectangular shape (length direction of rectangular shape is along the rectangular shape of product length direction L), leakage prevention sheet 23 at product Outboard end on width W arrives the side flap 14 that (reach) extends throughout central authorities' belt-like zone 12. Thus, outermost end centrally located belt-like zone 12 He on the W of product width direction of leakage prevention sheet 23 Border (it is to say, the fulcrum 16a in rivel portion, lower limb side 16) between side flap 14 in product width Outside on the W of direction.

In other words, side flap 14 has and is provided with leakage prevention sheet setting unit 14c of leakage prevention sheet 23 and is positioned at anti- The leakage prevention sheet in the outside on the W of product width direction of dropping fraction setting unit 14c is not provided with portion 14d.Then, Border 14e (in other words, leakage prevention sheet 23 that leakage prevention sheet setting unit 14c and leakage prevention sheet are not provided with between portion 14d The outermost end on the W of product width direction) be positioned at above-mentioned recess summit 145d in product width Inner side on the W of direction, additionally, fulcrum 16a is positioned at the inner side on the W of product width direction of border 14e (in other words, the direction of the inner side on the outside on the W of product width direction to product width direction W On, recess summit 145d, border 14e and fulcrum 16a are arranged with this order).It should be noted that, The summit on the W of product width direction in this embodiment, between recess summit 145d and border 14e Border spacing w2 is equal to or more than the twice of above-mentioned summit spacing w1.

<about the structure of the rubber thread 27 according to this embodiment>

As it has been described above, side flap 14 is provided with rubber thread 27, by rubber thread 27, retractility is put on crotch The skin lateral plate 26 in portion 5 and back sheet 24 constitute leg gather pleat portion.

Here, see Fig. 5 and Fig. 6, further describe rubber thread 27.Rubber thread 27 is when dress urine During cloth 1, retractility is put on the telescoping member in lower limb circumferential openings portion.In other words, rubber thread 27 is to make urine The lower limb periphery of cloth 1 adapts to the lower limb surrounding elastomeric component of the lower limb of wearer.Additionally, rubber thread 27 be along The wire telescoping member that product length direction L is flexible.In other words, rubber thread 27 is arranged to make its length Direction is along product length direction L.Rubber thread 27 is connect under tension along product length direction L Close skin lateral plate 26 etc..Thus, when wearing diaper 1, contractility acts on lower limb circumferential openings portion and receives On the direction of contracting.

Rubber thread 27 is arranged on the inner side on the W of product width direction of the shape part of crawling of crotch 5.Also That is, rubber thread 27 is arranged on the inner side on the W of product width direction of above-mentioned recess summit 145d. Additionally, rubber thread 27 is arranged on inner side (Fig. 6 of recess summit 145d on the W of product width direction Double dot dash line shown in middle reference L1) or the inside of this inner side, this inner side is from recess Summit 145d leaves summit spacing w1 to inner side.

With reference to Fig. 7 explanation, in this way rubber thread 27 will be arranged inner side L1's or inner side L1 The reason of inside.Fig. 7 is excellent for illustrating that the configuration of the rubber thread 27 according to this embodiment produces More the first explanation schematic diagram of property.Fig. 8 is the configuration for the rubber thread 27 according to this embodiment is described Second explanation schematic diagram of the superiority produced.It should be noted that, in the figure 7, the left hand view of Fig. 7 is The right part of flg of Fig. 7 from white arrow figure time seen.Similarly, in fig. 8, the left hand view of Fig. 8 is The right part of flg of Fig. 8 from white arrow figure time seen.Utilize the diaper 1 according to this embodiment, pass through Make end edge portion 14Lg for shape of crawling, it is possible to reduce sense of discomfort when wearing diaper.

That is, in the case of assuming that end edge portion is linearity, formed in the lower limb circumferential openings portion of diaper 1 with The part becoming " edge " of the direct skin contact of wearer, thus, straight edge compresses skin, The shape of edge part easily remains impression.Thus, this becomes and gives wearer the reason of uncomfortable sensation. On the other hand, end edge portion 14Lg is made into shape of crawling, thus the length of marginal portion, act on The power of end edge portion 14Lg is disperseed, and is difficult on the skin of wearer form impression.Thus, it is possible to reduce Wear sense of discomfort during diaper, and comfortable sense of touch can be provided.

Additionally, end edge portion 14Lg is shape of crawling, rubber thread 27 be arranged on shape part of crawling at product width Inner side on degree direction W, thus the contractility of rubber thread 27 acts on end edge portion 14Lg (shape portion of crawling Point).Thus, form wrinkle at end edge portion 14Lg (shape part of crawling) owing to contractility, can be with shape Become the mountain portion using these wrinkle as crest line.Then, this mountain portion contacts skin and gives skin buffering effect, It is capable of comfortable sense of touch.

Such as, as shown in the right part of flg of Fig. 7, it is arranged on recessed on the W of product width direction at rubber thread 27 In the case of the 145d of summit, portion, utilize the contractility of rubber thread 27, formed and extend to from protuberance summit 145c The wrinkle of a length of w1 (length identical with summit spacing) of the inner side on the W of product width direction. Then, as shown in the left hand view of Fig. 7, the mountain portion using wrinkle as crest line can be formed.When mountain portion contacts During skin, the sense of touch that wearer feels comfortably cool.

Here, in the example in figure 7, rubber thread 27 is arranged on recess summit 145d, but when rubber thread 27 From recess summit 145d to the medial septal the W of product width direction leave time, as shown in Figure 8, formed not Same wrinkle, i.e. the wrinkle extended to product width direction from recess summit 145d, and formed with folding Wrinkle as crest line (by this crest line referred to as recess crest line to distinguish with the crest line in Fig. 7, by the rib in Fig. 7 Line is referred to as protuberance crest line) mountain portion.This mountain portion also is able to when contacting skin provide comfortable to wearer Sense of touch.

But, rubber thread 27 from recess summit 145d leave degree less in the case of, wrinkle (crest line) Length the shortest, it is impossible to realize sufficient buffering effect.Then, in this embodiment, recess rib is made The length of line is at least approximately the length (that is, summit spacing w1) of protuberance crest line, convex in order to have The buffering effect in the mountain portion of portion's crest line is supplied to the mountain portion with recess crest line, and rubber thread 27 is arranged on from recessed Summit, portion 145d is the inner side L1 of spaced apart summit spacing w1 to inner side, or inner side L1 Inside.Thus, in this embodiment, not merely with having the mountain portion of protuberance crest line, also utilize tool There is the mountain portion of recess crest line, it is thus achieved that sufficiently buffering effect, and the urine with good sense of touch can be provided Cloth 1.

It should be noted that, there is the crest line (mountain shown in left hand view in Fig. 7 or Fig. 8 in above-mentioned mountain portion The summit in portion) towards the situation of skin side (relative with skin), and there is crest line towards non-skin side Situation (in which way in the face of random occur).So, when crest line is towards skin side, in generation State buffering effect.

Additionally, in this embodiment, as shown in Figure 6, rubber thread 27 sets on the W of product width direction It is placed in leakage prevention sheet setting unit 14c and border 14e and recess summit 145d that leakage prevention sheet is not provided with between portion 14d Between.In other words, rubber thread 27 is arranged on the leakage prevention sheet not having leakage prevention sheet 23 of side flap 14 and is not provided with portion 14d.Thus, rubber thread 27 is clipped between skin lateral plate 26 and back sheet 24.Rubber thread 27 is at product width Be arranged on degree direction W the center on the W of product width direction of recess summit 145d and border 14e with Between the 14e of border.In other words, rubber thread 27 is not at leakage prevention sheet on the W of product width direction and does not sets Put near the recess summit 145d of portion 14d, and be near the 14e of border.Thus, it becomes able to make rubber Collodion silk 27 is further from recess summit 145d, and forms the mountain portion with longer recess crest line.Thus, it is possible to There is provided, for skin, the buffering effect that is more suitable for, and can provide there is the diaper 1 being more satisfied with sense of touch.

Additionally, when considering the rubber thread 27 position on the L of product length direction, as shown in Figure 6, rubber The end 27a of the side, rear portion 7 of silk 27 is positioned at the rear portion side of foregoing front side 14bb on the L of product length direction Toe lateral (in other words, this end is positioned at the scope shown in L2 in Fig. 5) with fixing band 30.In other words, Rubber thread 27 is stretched and is configured to exceed anterior side 14bb.

Rear portion side and the toe lateral of fixing band 30 making end 27a be positioned at anterior side 14bb in this way is described Reason.As it has been described above, end edge portion 14Lg is in anterior side 14bb and shape portion of crawling in the longitudinal direction / there is the shape part of crawling on non-length direction.Thus, it is positioned at anterior side 14bb at end 27a Rear portion side in the case of, in other words, be stretched at rubber thread 27 and be configured to exceed anterior side In the case of 14bb, the recess 147b of the shape part of crawling being arranged on non-length direction also is able to be formed There is the mountain portion of recess crest line, it is thus possible to be supplied to the buffering effect that skin is more suitable for, and can carry For having the diaper 1 being more satisfied with sense of touch.Additionally, by the toe lateral that end 27a is positioned at fixing band 30, It is prevented from forming too much wrinkle at fixing band 30, and is prevented from the damage of the function of fixing band 30 Lose.

Additionally, as shown in Figure 6, the end 27b in anterior 3 sides of rubber thread 27 is positioned at above-mentioned anterior outermost The rear portion side of the rear portion side 14fb of the rearmost part side on the L of product length direction of end 14fa is (in other words, The scope shown in L3 that this end is positioned in Fig. 5).In other words, rubber thread 27 is not stretched beyond rear portion side End 14fb.

Illustrate that end 27b is positioned at the reason of the rear portion side of rear portion side 14fb in this way.As it has been described above, it is front Portion 3 is provided with the object tape 29 engaged with fixing band 30.But, when user uses fixing band 30, Fixing band does not always engage with object tape 29, the toe lateral on the L of product length direction of rear portion side 14fb Region become possible to (for convenience's sake, the most engageable district, region that engages with fixing band 30 Territory).Thus, when the rear portion side holding 27b to be positioned at rear portion side 14fb, it is possible to prevent in engageable region Form too much wrinkle, and be prevented from the merit loss of energy of fixing band 30.

===about the disposable diaper according to the second embodiment===

Then, with reference to Fig. 9, the diaper 1 according to the second embodiment is described.Fig. 9 is the figure corresponding with Fig. 5, And it is the schematic plan of the structure that side flap 14 and its periphery according to the second embodiment are described Figure.

Diaper 1 according to the second embodiment and above-mentioned embodiment (the hereinafter referred to as first embodiment) Diaper 1 between the position on the W of product width direction differing only in rubber thread 27 (should note Meaning, the position on the L of product length direction of rubber thread 27 and its position in the first embodiment Put identical).In this second embodiment, identical with the first embodiment, rubber thread 27 is at product width Degree direction W on be arranged on from recess summit 145d to inner side the inner side of spaced apart summit spacing w1, Or it is arranged on the inside of this inner side.Thus, in this second embodiment, with the first embodiment Identical, not only in the mountain portion with protuberance crest line, and achieve in the mountain portion with recess crest line and fill The buffering effect divided, and the effect of the above-mentioned diaper 1 that can provide and have good sense of touch is provided.

On the one hand, in the first embodiment, rubber thread 27 is arranged on leakproof on the W of product width direction Between border 14e and recess summit 145d that sheet setting unit 14c and leakage prevention sheet are not provided with between portion 14d, but It is that on the other hand in this second embodiment, rubber thread 27 is arranged on border on the W of product width direction Between the fulcrum 16a in 14e and rivel portion, above-mentioned lower limb side 16.In other words, in the first embodiment, rubber Silk 27 is arranged on leakage prevention sheet and is not provided with portion 14d, and in this second embodiment, rubber thread 27 is arranged on anti- Dropping fraction setting unit 14c.

Thus, produce the superiority of following description.As it has been described above, rivel portion, lower limb side 16 has prevents liquid (in other words, the Excreta of the excretion such as urine and feces in diaper 1) gap around lower limb is let out The function of leakage.Thus, when the Excreta outer side shifting on the W of product width direction, rivel portion, lower limb side 16 stop this to move, thus Excreta is not over above-mentioned fulcrum 16a.

Additionally, rubber thread 27 (in other words, leg gather pleat portion 15) has the function as the second barrier structure. In other words, rivel portion, lower limb side 16 stops that Excreta moves to the outside on the W of product width direction, but is This moves and Excreta crosses fulcrum 16a on the W of product width direction to make rivel portion, lower limb side not stop Outer side shifting, rubber thread 27 also is able to stop excremental movement.By this way, dual machine is utilized Structure, it is possible to prevent liquid from clearance leakage (rubber thread 27 is prophylactic function).

Here, in this second embodiment, rubber thread 27 is arranged on border 14e on the W of product width direction And between fulcrum 16a, between rubber thread 27 and fulcrum 16a, on the W of product width direction, there is leakage prevention sheet 23.Thus, even if Excreta crosses the fulcrum 16a (rivel portion, lower limb side 16) as the first barrier structure Outer side shifting on the W of product width direction, until the rubber thread 27 (lower limb as the second barrier structure Rivel portion 15) there is also leakage prevention sheet 23 before, thus Excreta No leakage ground arrives rubber thread 27 and quilt Rubber thread 27 stops.Therefore, according to the second embodiment, it is possible to suitably prevent liquid from leaking.

===about the disposable diaper according to the 3rd embodiment===

Then, with reference to Figure 10, the diaper 1 according to the 3rd embodiment is described.Figure 10 is and Fig. 5 and Fig. 9 pair The figure answered, and be structure schematic that side flap 14 and periphery thereof according to the 3rd embodiment are described Plane graph.

Diaper 1 in diaper 1 according to the 3rd embodiment and the first embodiment and the second embodiment Between differ only in the rubber strip 27 position on the W of product width direction (it should be noted that, rubber The collodion silk 27 position on the L of product length direction with its in the first embodiment and the second embodiment Position is identical).It is in the third embodiment, identical with the first embodiment and the second embodiment, Rubber thread 27 is arranged on from recess summit 145d between spaced apart summit, inner side on the W of product width direction The inner side of distance w1, or it is arranged on the inside of this inner side.Thus, at the 3rd embodiment In, identical with the first embodiment and the second embodiment, not only in the mountain portion with protuberance crest line, And in the mountain portion have recess crest line, achieve sufficient buffering effect, and achieve above-mentioned can The effect of the diaper 1 with good sense of touch is provided.

On the one hand, in this second embodiment, rubber thread 27 is arranged on border on the W of product width direction Between 14e and fulcrum 16a, i.e. be arranged on the outside of fulcrum 16a, but on the other hand, real the 3rd Executing in mode, rubber thread 27 is arranged on the inner side of fulcrum 16a on the W of product width direction.

Thus, produce the superiority of following description.In other words, in the third embodiment, conduct is constituted Around lower limb, the rubber thread 27 in the leg gather pleat portion 15 of pars contractilis is arranged on the interior of the fulcrum 16a in rivel portion, lower limb side 16 Side.Thus, the fulcrum 16a in rivel portion, lower limb side 16 is positioned at composition as the leg gather pleat portion of pars contractilis around lower limb The outside of the rubber thread 27 of 15, by check diaper 1 lower limb circumferential openings portion can from outside suitably mesh Depending on confirming the state in rivel portion, lower limb side 16.Thus, it is possible to be in wearing effect and without not noting at diaper 1 Excremental inspection is carried out in the case of the mobile wearer in meaning ground.

Especially, in the case of wearer equals to or less than the low birthweight infant of 3000g for body weight, dress Person easily produces difficult defecation, carries out defecation induction energetically by such as giving intestinal lavage etc..Additionally, In the case of wearer is low birthweight infant, certainly, the demand minimizing process is higher.Thus, in these feelings Under condition, it is possible to when diaper 1 is worn and without checking excretion in the case of moving wearer inadvertently Thing has bigger meaning.

Additionally, in the third embodiment, as already described (illustrating in the first embodiment), The fulcrum 16a from rivel portion, lower limb side to the part of summit, inner side 16b part 16c near fulcrum by Only there is sheet material (the skin lateral plate 26) formation of one layer.

Part 16c near fulcrum is first to see when feces etc. is discharged (in other words, on summit, inner side Before neighbouring part 16d) excremental part.Thus, part 16c near fulcrum can be only to have There is the sheet material of a layer, it is thus possible to seen the excremental color of such as feces etc. by part 16c, and Can more easily carry out excremental inspection.

Additionally, in the third embodiment, fulcrum 16a and summit, inner side 16b at product width direction W On fulcrum medial roof dot spacing from w3 than fulcrum 16a and protuberance summit 145c at product width direction W On fulcrum protuberance summit spacing w4 big.

Thus, when rivel portion, lower limb side 16 (summit, inner side 16b) using fulcrum 16a as starting point to product width When outside on degree direction W is toppled over, rivel portion, lower limb side 16 is from above-mentioned end edge portion 14Lg (shape part of crawling) Prominent.Thus, when diaper 1 is worn in this form, it is projected into the portion in the outside of end edge portion 14Lg Point rivel portion, lower limb side 16 at least some of in, thus this part is it can be seen that the most easily visible Excremental place (on the contrary, at fulcrum medial roof dot spacing from w3 than fulcrum protuberance summit spacing In the case of w4 is little, there is not the part in the outside being projected into end edge portion 14Lg, due to not this part, Therefore, it is difficult to see Excreta).Thus, it is possible to more easily carry out excremental inspection.

It should be noted that, in the third embodiment, rubber thread 27 be arranged on fulcrum 16a at product Inner side on width W, unlike the second embodiment, rubber thread 27 not when Excreta As the function of the second barrier structure when crossing fulcrum 16a (the first barrier structure).But, as The function of two barrier structures is described above as prophylactic function, it may be considered that omit the selection of this function.

Additionally, in the case of rubber thread 27 is arranged at the inner side of fulcrum 16a, although rubber thread 27 does not has As the second barrier structure, but rubber thread blocks the excremental movement of inner side.Additionally, the 3rd In embodiment, stretching ratio (in other words, the rubber when rubber thread 27 is installed to diaper 1 of rubber thread 27 The amplification that collodion silk 27 has been stretched and has installed) than the stretching ratio of tensile member in rivel portion, lower limb side 16 Greatly (specifically, the former is 2.4 times, and the latter is 2.0 times), thus liquid leakage prevent ability from not reducing Too much.

Other aspects of======

Above-mentioned embodiment readily appreciates the present invention, limits the understanding of the present invention never in any form.Permissible Being changed and improved the present invention without departing from the scope of the invention, there is no need to go into details, The present invention includes its equivalent.

Additionally, in the above-described embodiment, rubber thread 27 is given by the example as telescoping member and says Bright, but telescoping member is not limited to this.Such as, telescoping member can be stretchable sheet.In other words, Ke Yi Arrange from the inner side of recess summit 145d spaced apart summit spacing w1 to inner side on the W of product width direction, Or it is provided as the stretchable sheet of telescoping member in the inside of this inner side (specifically, when stretchable sheet is When product width direction W has the component of width, it is positioned at the outermost part of stretchable sheet).

But, in the case of telescoping member is rubber thread 27, compared with stretchable sheet, the joint of diaper 1 Area can keep less, thus the least on sense of touch impact.In other words, it is stretchable sheet in telescoping member In the case of, produce the sensation of stretchable sheet contact skin significantly, thus there is the sense of discomfort relevant with sense of touch Probability, but in the case of rubber thread 27, this sensation can be retained as Min..Cause And, using the teaching of the invention it is possible to provide there is the diaper 1 being more satisfied with sense of touch.

Reference numerals list

1 diaper

3 is anterior

5 crotches

7 rear portions

12 central authorities' belt-like zones

14 side flap

14Lg end edge portion

14b rear portion protuberance

14ba rear portion outermost end

14bb front portion side

14c leakage prevention sheet setting unit

14d leakage prevention sheet is not provided with portion

14e border

14f front portion protuberance

14fa front portion outermost end

14fb rear portion side

15 leg gather pleat portions

16 rivel portion, lower limb sides

16a fulcrum

Summit inside 16b

Part near 16c fulcrum

Part near summit inside 16d

18 waist rivel portions

21 absorbers

22 top sheet

23 leakage prevention sheets

24 back sheets

25 Flexible films

26 skin lateral plates

26A junction surface

27 rubber threads

27a end

27b end

28 waist rivel portion films

29 object tapes

30 fixing bands

143a protuberance

143b recess

145a protuberance

145b recess

145c protuberance summit

145d recess summit

147a protuberance

147b recess

211b tuck portion

211f tuck portion

L product length direction

W product width direction

CL center

L1 inner side

W1 summit spacing

Border, w2 summit spacing

W3 fulcrum medial roof dot spacing from

W4 fulcrum protuberance summit spacing

Claims (9)

1. a disposable diaper, it has length direction and the width side intersected with described length direction To, described disposable diaper includes:

Absorber, described absorber absorbs liquid；

Side flap, described side flap is positioned at the both sides of described width；And

Telescoping member, described telescoping member is flexible along described length direction,

It is characterized in that, the end edge portion outside the described width of described side flap has and crawls as follows The shape part of crawling of shape: outside described width protrude protuberance and to described width outer concave Fall into recess on described length direction alternately and repeatedly,

Described telescoping member is arranged on inner side or more inner than this inner side on described width The position of side, described inner side from the recess summit of described recess to inner side spaced apart summit spacing, Described summit spacing be between described recess summit and the protuberance summit of described protuberance at described width Distance on direction.

Disposable diaper the most according to claim 1, it is characterised in that described telescoping member is rubber Collodion silk.

Disposable diaper the most according to claim 2, it is characterised in that

Described side flap has to be provided with the leakage prevention sheet setting unit of leakage prevention sheet and be positioned at described leakage prevention sheet and sets Put the leakage prevention sheet outside the described width in portion and be not provided with portion,

The border that described leakage prevention sheet setting unit and described leakage prevention sheet are not provided with between portion is positioned at described recess top Inside the described width of point, on the described width between described recess summit and described border Border, summit spacing equals to or more than the twice of described summit spacing,

Described rubber thread be arranged on described width described recess summit and described border in institute State the center on width and between described border.

Disposable diaper the most according to claim 2, it is characterised in that

Described disposable diaper includes the rivel portion, lower limb side forming and having fulcrum along described length direction,

Wherein, described side flap has and is provided with the leakage prevention sheet setting unit of leakage prevention sheet and is positioned at described leakproof Leakage prevention sheet outside the described width of sheet setting unit is not provided with portion,

The border that described leakage prevention sheet setting unit and described leakage prevention sheet are not provided with between portion is positioned at described recess top Inside the described width of point,

Described fulcrum is positioned at inside the described width on described border,

Described rubber thread is arranged between described border and described fulcrum on described width.

Disposable diaper the most according to claim 2, it is characterised in that

Described disposable diaper includes the rivel portion, lower limb side forming and having fulcrum along described length direction,

Wherein, described rubber thread is arranged on the inner side of described fulcrum on described width.

Disposable diaper the most according to claim 5, it is characterised in that

Rivel portion, described lower limb side has the summit, inner side being positioned at inside the described width of described fulcrum,

Rivel portion, described lower limb side from described fulcrum to the described fulcrum of the part on summit, described inner side near Part be made up of the sheet material only with a layer.

7. according to the disposable diaper described in claim 5 or 6, it is characterised in that

Rivel portion, described lower limb side has the summit, inner side being positioned at inside the described width of described fulcrum,

Fulcrum medial roof dot spacing on described width between described fulcrum and summit, described inner side From than the fulcrum protuberance summit spacing on the described width between described fulcrum and described protuberance summit From greatly.

Disposable diaper the most according to claim 2, it is characterised in that

Described shape part of crawling is that length direction crawls shape part,

Described side flap has when wearing described disposable diaper the front portion of the veutro being positioned at wearer, position In the rear portion of dorsal part of wearer and crotch between described anterior and described rear portion,

Described rear portion is provided with rear portion protuberance, and described rear portion protuberance is towards described width lateral process Go out and there is the rear portion outermost end along described length direction,

Described rear portion protuberance is provided with fixing band,

Described end edge portion has non-length direction and crawls shape part, and described non-length direction shape part of crawling is Crawl shape as follows: in the rear the anterior side of the forefront side on the described length direction of portion's outermost end and Described length direction crawls between shape part, and described protuberance and described recess are relative to described length direction On the direction tilted alternately and repeatedly,

The end of the rear portion side of described rubber thread is positioned at the rear portion of described anterior side on described length direction Side and the toe lateral of described fixing band.

Disposable diaper the most according to claim 2, it is characterised in that

Described side flap has when wearing described disposable diaper the front portion of the veutro being positioned at wearer, position In the rear portion of dorsal part of wearer and crotch between described anterior and described rear portion,

Described front portion is provided with anterior protuberance, and described anterior protuberance is towards described width lateral process Go out and there is the anterior outermost end along described length direction,

The end of the toe lateral of described rubber thread is positioned at the institute of described anterior outermost end on described length direction State the rear portion side of the rear portion side of rearmost part side on length direction.