CN203841920U - Disposable diaper - Google Patents

Abstract

The utility model provides a diaper (2). The diaper comprises an absorbent body (23), a front face sheet (21) and an absorbent main body (2) of an outer-layer composite sheet (22); side sheets (24) disposed and fixed by fixing parts (27) are arranged on two sides of the absorbent main body (2). Each of the side sheets (24) is formed by a sheet. The edges (24I) of inner end parts are folded to the fixing parts (27). Elastic parts (25) are fixedly disposed near folded tops (24T1). In addition, edges (24I) of the outer end parts of the side sheets (24) are folded to the fixing parts (27). Elastic parts (26) are fixedly disposed on the folded tops (24T2) at an interval. In addition, folded sheets, passing through areas (24Z) apart areas (25T) where the elastic parts (25) are arranged and the areas (26T) where the elastic parts (26) are arranged, of the side sheets (24) are jointed by welding parts (28) to form a whole.

Description

Disposable diaper

Technical field

This utility model relates to the disposable diaper of deploying type.

Background technology

There are at present the absorbent commodities such as a kind of disposable diaper, its three-dimensional rivel (gathers) of what is called in order to prevent from the side leakage of urine and loose stool, to be provided with in the both sides of absorbent main body utilizing the contractility of elastomeric element and erecting.In general, this solid rivel is used the non-woven fabrics of water-repellancy to form, and requires this solid rivel to have breathability, flexibility and anti-leakage.

As the disposable diaper that is provided with so-called three-dimensional rivel, for example, in patent documentation 1, recorded a kind of disposable diaper, it is folding by non-woven fabrics, at folding interlayer, the elastomeric element of elongation state is set and erects to form and stops flange (so-called three-dimensional rivel) and retractility trouser legs flange.

In addition, as with the similar other technologies of three-dimensional rivel, the applicant has first proposed a kind of absorbent commodity, it comprises by folded sides leakage barriers and forms the offside leakage barriers (with reference to patent documentation 2) that sheet forms.

Prior art document

Patent documentation 1: Japanese kokai publication hei 8-66424 communique

Patent documentation 2: TOHKEMY 2008-55107 communique

Summary of the invention

But, in patent documentation 1, do not record the interlayer that fixes folding non-woven fabrics by a plurality of weld portion of welding.For example, when use hot-melt adhesive etc. fixes the interlayer of folding non-woven fabrics, be difficult to improve breathability or flexibility.

In addition, the side leakage barriers that the absorbent commodity of recording in patent documentation 2 possesses is to form sheet by folded sides leakage barriers, with the fixing folding interlayer of a plurality of weld portion of welding, forms.But the side leakage barriers that the absorbent commodity of recording in patent documentation 2 possesses does not arrange the elastomeric element of elongation state, the three-dimensional rivel erecting from contractility by elastomeric element is different.Therefore, in patent documentation 2, there is no to record the position relationship of a plurality of weld portion that are disposed at the elastomeric element of folding interlayer and folding interlayer is fixed.

Therefore, this utility model relates to a kind of disposable diaper that is provided with the three-dimensional rivel that breathability, flexibility and anti-leakage are high.

This utility model relates to a kind of disposable diaper, it comprises the absorbent main body of lengthwise, this absorbent main body have liquid retentivity absorber, be disposed at this absorber skin abutment face side positive dough sheet and be disposed at the outer composite sheet of the non-skin abutment face side of this absorber, above-mentioned absorbent main body is divided into when dressing in the veutro portion of the veutro of wearer, at the drosal part of dorsal part be disposed at the crotch bottom between this veutro portion and this drosal part.

The described absorbent main body of disposable diaper of the present utility model, both sides at the long side direction of this absorbent main body possess respectively lateral plate, described lateral plate is folding along long side direction by the width both sides of the hydrophobicity sheet of a slice lengthwise respectively, and this hydrophobicity sheet is configured to the skin abutment face that is fixed on described positive dough sheet along the long side direction of absorbent main body by fixed part.

Square side in the width of described lateral plate, with the edge of the interior square end portion of the long side direction along this hydrophobicity sheet, arrive the position of described fixed part or cross the mode of the position of this fixed part, this hydrophobicity sheet is folded into skin abutment face side or non-skin abutment face side along long side direction, form folding top, near this folding top of described crotch bottom, the elastomeric element of many three-dimensional rivel formation use configures and is fixed between described hydrophobicity sheet under the state extending along long side direction.On the other hand, width foreign side side at described lateral plate, with the edge of the foreign side end of the long side direction along described hydrophobicity sheet, arrive the mode of the position of described fixed part or the position of Bi Qigengkao width foreign side side, by this hydrophobicity sheet along long side direction, folding to the side that the folded side of square side hydrophobicity sheet in the described width with among skin abutment face side and non-skin abutment face side is identical, form folding top, from this folding top of described crotch bottom, vacate compartment of terrain, the elastomeric element that many shank rivels is formed to use is configuring and is being fixed between described hydrophobicity sheet under elongation state along long side direction.

Described lateral plate, except dispose described many three-dimensional rivels form use elastomeric element region and dispose described many shank rivels and form between the folding overlapping described hydrophobicity sheet in the region the region of elastomeric element of use, being spaced apart a plurality of weld portion that arrange engages fixing, between this adjacent weld portion described hydrophobicity sheet each other, it is non-engagement state, when dressing, in described crotch bottom, utilize described three-dimensional rivel to form the contractility of the elastomeric element of use, compare square side in width with the described fixed part of described lateral plate and become three-dimensional rivel, and utilize described shank rivel to form the contractility of the elastomeric element of use, compare width foreign side side with the described fixed part of described lateral plate and become shank rivel.

Accompanying drawing explanation

Fig. 1 is the expansion plane graph of the disposable diaper of the conduct embodiment of the present utility model seen from positive dough sheet side.

Fig. 2 means the axonometric chart of the wearing state of the disposable diaper shown in Fig. 1.

Fig. 3 means flank sheet and near the amplification view it of the disposable diaper shown in Fig. 1.

Fig. 4 is I-I line sectional view of Fig. 3.

Fig. 5 means II-II line sectional view of wearing state of the crotch bottom of the disposable diaper shown in Fig. 1.

Fig. 6 means the axonometric chart of an example of manufacture method of flank sheet of the disposable diaper of present embodiment.

The specific embodiment

Below, with reference to accompanying drawing, according to it, this utility model is preferred embodiment described.

The disposable diaper 1(of an embodiment of the present utility model is following also referred to as diaper 1) comprise as shown in Figure 1 absorbent main body 2, this absorbent main body 2 has: the absorber 23 of liquid retentivity; Be disposed at the positive dough sheet 21 of the skin abutment face side of this absorber 23; With the outer composite sheet 22 that is disposed at the non-skin abutment face side of this absorber 23.In addition, absorbent main body 2 has the shape of lengthwise as shown in Figure 1, be divided into when dressing, be positioned at the veutro of wearer the A of veutro portion, be positioned at wearer dorsal part drosal part B and be positioned at hip as the crotch bottom C of portion.

As shown in Figure 1, diaper 1 is in drosal part B, is provided with respectively the disposable diaper of so-called deploying type of the flank sheet 3,3 of retractility in the both sides of the long side direction along absorbent main body 2.Below, be specifically described.

The absorbent main body 2 of diaper 1 as shown in Figure 1, is rectangle under the state that becomes plane expansion.Flank sheet 3,3 is to be installed on respectively the both sides of the absorbent main body 2 drosal part B from the outwards square outstanding mode in edge, both sides of absorbent main body 2.In disposable diaper 1, flank sheet 3,3 is fixing by bond layer and absorbent main body 2 and lateral plate described later 24.

The long side direction of disposable diaper 1 is the Y-direction in figure, is the direction identical with the long side direction of absorbent main body.The width of disposable diaper 1 is the directions X in figure, is the direction identical with the width of absorbent main body 2.In the following description, also by the direction corresponding with diaper long side direction of the component parts of the long side direction of diaper or this diaper referred to as Y-direction, by the direction corresponding with diaper width of the component parts of the width of diaper or this diaper referred to as directions X.In addition, the skin abutment face of diaper and diaper component parts be when dressing towards the face of the skin side of wearer, the non-skin abutment face of diaper and diaper component parts is towards the face of the contrary side of the skin with wearer while dressing.

As shown in Figures 4 and 5, absorbent main body 2 has: the positive dough sheet 21 of liquid permeability; Outer composite sheet 22; And be disposed at the absorber 23 of the liquid retentivity between these two sheets 21,22.Positive dough sheet 21 as shown in Figure 4, except the amplitude of directions X is little, has the plan view shape identical with outer composite sheet 22.Outer composite sheet 22 has: the leakage prevention sheet 22a of the difficult permeability of liquid (comprising water-repellancy); With the outer non-woven fabrics 22b engaging with the non-skin abutment face side (the Q side in Fig. 4) of this leakage prevention sheet 22a by outer bond layer 61.The plan view shape of outer non-woven fabrics 22b is identical with the absorbent main body 2 of the plane deployed condition of one-tenth, and leakage prevention sheet 22a as shown in Figure 4, except the amplitude of directions X is smaller, has the plan view shape identical with outer non-woven fabrics 22b.By the existence of outer non-woven fabrics 22b, the skin sense of touch of diaper outer surface improves.

As shown in Figure 1, diaper 1 symmetrically forms with respect to the CL of Central Line of the long side direction of absorbent main body 2.Therefore, for the structure of flank sheet 3,3,, the juncture of the stacked state of lateral plate 24 and they and absorbent main body 2, mainly take the left side of Fig. 1 to describe as example, also identical except symmetrical about right side.

Flank sheet 3 as shown in Figure 3 and Figure 4, is provided with magic tape 4 at top ends 3a, in diaper 1, has two pieces of sheets 31,32 and is fixed on the elastomeric element 33 between these two pieces of sheets 31,32.As shown in Figure 3, the flank sheet 3 of diaper 1 is rectangle under the state that becomes plane expansion.In addition, as shown in Figure 4, flank sheet 3 has the fabric two pieces of sheets 31,32 of nonwoven and fixing many elastomeric elements 33 under the upper state extending of width (directions X) at diaper between two pieces of sheets 31,32.The magic tape 4 that is arranged at the top ends 3a of flank sheet 3 is used for flank sheet 3 to be fixedly bonded at other positions.Elastomeric element 33 configures along the width (directions X) of diaper 1 respectively.In addition, the many elastomeric elements 33 of each flank sheet 3 separate compartment of terrain configuration about equally on the long side direction (Y-direction) of diaper.

As shown in Figure 1, absorbent main body 2 has by fixed part 27 lateral plate 24,24 that configures respectively the both sides of the long side direction that is fixed on this absorbent main body 2.Lateral plate 24, as shown in Figure 4 and Figure 5, in diaper 1, in the skin abutment face of the sidepiece of the positive dough sheet 21 of absorbent main body 2, in the skin abutment face (P side Fig. 4) of the positive dough sheet 21 extending to width foreign side in the edge, both sides of the long side direction from along absorbability 23 (Y-direction), by utilizing various well-known method adhesive-applyings, or utilize various well-known methods mutually to dissolve processing and the fixed part 27 of formation, spread all over the configuration endlong of absorbent main body 2.This fixed part 27 spreads all over the configuration endlong of lateral plate 24 and absorbent main body 2.

Lateral plate 24, as shown in Figures 4 and 5, width (directions X) both sides of the hydrophobicity sheet of a slice lengthwise (long in Y-direction) are folding along long side direction (Y-direction), and the long side direction (Y-direction) by this hydrophobicity sheet along absorbent main body 2 is configured in the skin abutment face that is fixed on positive dough sheet 21 and is formed by fixed part 27.Lateral plate 24 square side (CL of Central Line side) in its width has folding top 24T1, and this folding top 24T1 is that the position that edge 24I along the interior square end portion of the long side direction (Y-direction) of the hydrophobicity sheet non-skin abutment face side (Q side in Fig. 4) along long side direction (Y-direction) to this sheet is folded to fixed part 27 forms.; square side in the width of lateral plate 24; the mode that arrives the position of fixed part 27 with the edge 24I of the interior square end portion of the long side direction along hydrophobicity sheet (Y-direction), the non-skin abutment face side by hydrophobicity sheet along long side direction (Y-direction) to this sheet is folding.And folding by this, in the width of lateral plate 24, the end of square side is formed with folding top 24T1.

And near the folding top 24T1 of crotch bottom C, the elastomeric element 25 that forms use at the upper many three-dimensional rivels of long side direction (Y-direction) is fixed between hydrophobicity sheet with elongation state configuration.Herein, near the 24T1 of top, being provided with many elastomeric elements 25 refers to, in fact in folding 24T1 top, top is provided with the elastomeric element 25 that many three-dimensional rivels form use, and the interval of vacating regulation from this top is provided with many elastomeric elements 25 discontinuously.The elastomeric element 25 that three-dimensional rivel forms use preferably arrange 1 above below 4, in diaper 1, be provided with 2.In addition, as mentioned above, the lateral plate 24 of diaper 1 square side in its width, the mode of position that hydrophobicity sheet is arrived to fixed part 27 with the edge 24I of the interior square end portion of this hydrophobicity sheet is folding, but that hydrophobicity sheet also can arrive the mode of position of the position of crossing fixed part 27 with the 24I of square end portion in it is folding.

In addition, about the direction of pleated sheet, " the non-skin abutment face side of sheet " is Q side in figure (towards the one side of the contrary side of the skin with wearer), and " the skin abutment face side of sheet " is P side in figure (towards the one side of the skin side of wearer).

In addition, lateral plate 24 as shown in Figure 4 and Figure 5, Qi width foreign side side has folding top 24T2, this folding top 24T2 is that edge 24O along the foreign side end of the long side direction (Y-direction) of hydrophobicity sheet is along long side direction (Y-direction) to the identical side of the folded side of the interior square end 24I of portion with among skin abutment face side and non-skin abutment face side, in concrete diaper 1, to the non-skin abutment face side (Q side in Fig. 4) of sheet, be folded to that the position of fixed part 27 forms.; width foreign side side at lateral plate 24; along the edge 24O of the foreign side end of the long side direction (Y-direction) of hydrophobicity sheet to arrive the mode of the position of fixed part 27; this hydrophobicity sheet is folding along long side direction (Y-direction), and its folding direction is the direction identical non-skin abutment face side folded with square side hydrophobicity sheet in width at lateral plate 24.And, folding according to this, in the end of the width foreign side side of lateral plate 24, be formed with folding top 24T2.

And, from the folding top 24T2 of crotch bottom C, vacate interval S, at the upper elastomeric element 26 by many shank rivels formation use of long side direction (Y-direction), under elongation state, configure and be fixed between hydrophobicity sheet., at interval S, elastomeric element is not set herein, the interval S between folding top 24T2 and the elastomeric element 26 of shank rivel formation use becomes the non-domain of the existence of elastomeric element.Like this, be provided as adjacently the interval S of the non-domain of the existence of elastomeric element with folding top 24T2, and from top 24T2, vacate interval S and be provided with discontinuously many elastomeric elements 25.The elastomeric element 26 that shank rivel forms use preferably arrange 1 above below 4, in diaper 1, be provided with 2.In addition, the lateral plate 24Qi width foreign side side of diaper 1, as mentioned above, the folding edge 24O of the foreign side end of this hydrophobicity sheet that makes of hydrophobicity sheet is arrived to the position of fixed part 27, but the edge 24O that also hydrophobicity sheet can be folded into its foreign side end is folded to than the position of fixed part 27 more by the position of width (directions X) foreign side side.Like this, in the folded mode of scope of not crossing the position of fixed part 27, because the edge 24O of foreign side end does not contact skin, therefore preferably.

The width W 2 of interval S is with respect to the ratio (with reference to Fig. 4) of the length W1 of the width (directions X) by the folding lateral plate 24 forming, from flexibly around pars inguinalis, reduce the viewpoint stay the vestige skin and to prevent side leakage, preferably more than 5%, more preferably more than 8%, in addition preferably below 40%, more preferably below 35%, particularly, preferably more than 10% below 30%, more preferably more than 15% below 25%.Particularly, the same viewpoint of ratio based on aforesaid area, the width W 2 of interval S is preferred more than 4mm, more preferably more than 6mm, preferably below 35mm, more preferably below 30mm, particularly, preferably below the above 25mm of 8mm, more preferably below the above 20mm of 10mm.

Lateral plate 24 is preferred, and in width, the edge 24I of the foreign side end of the folding hydrophobicity sheet of the edge 24IYu width foreign side side of the interior square end portion of the folding hydrophobicity sheet of square side forms one under the state connecting.That is, preferably the edge 24I of the interior square end portion of folding hydrophobicity sheet in one plane aligns with the edge 24O of the foreign side end of folding hydrophobicity sheet, thereby lateral plate 24 forms ring-type.In the situation that the edge of these Nei Fangyu foreign sides situation that tight ground is relative each other and have space, in the preferred 3mm in gap.Like this, by lateral plate 24, form ring-type, integral body becomes duplex, not only improves anti-leakage thus but also end does not overlap each other, and therefore plays to be difficult for originally producing hard part with it at lateral plate, to be difficult to affect the such effect of the fit of health.

In addition, respectively except being provided with the region 25T(of elastomeric element 25 that many three-dimensional rivels form use with reference to Fig. 1) and the region 26T(of elastomeric element 26 that is provided with many shank rivels formation use with reference to Fig. 1) region 24Z in folding and overlapping hydrophobicity sheet between, as shown in Figure 3, a plurality of weld portion 28 that lateral plate 24 is arranged discontinuously engage fixing.As described particularly, lateral plate 24 has in diaper 1 as shown in Figure 3: the elongated area 250T that makes to be provided with the three-dimensional rivel elastomeric element that region 25T that three-dimensional rivel forms the elastomeric element 25 of use extends in the whole region of the long side direction (Y-direction) of absorbent main body 2; With make to be provided with the region 26T(of elastomeric element 26 that shank rivel forms use with reference to Fig. 1) the elongated area 260T of the shank rivel elastomeric element that extends in the whole region of the long side direction (Y-direction) of absorbent main body 2.In the lateral plate 24 of diaper 1, region 24Z after aforementioned removing refers to, the region between the region between the elongated area 250T of three-dimensional rivel elastomeric element and the elongated area 260T of shank rivel elastomeric element and the folding top 24T2 of width foreign side side of lateral plate 24 and the elongated area 260T of shank rivel elastomeric element.And, as shown in Figure 3, engaging by being passed a plurality of weld portion 28 that thermal welding forms between folding and overlapping hydrophobicity sheet in the region between the elongated area 250T of three-dimensional rivel elastomeric element and the elongated area 260T of shank rivel elastomeric element, equally, engaging by being passed a plurality of weld portion 28 that thermal welding forms between folding and overlapping hydrophobicity sheet in the region between the folding top 24T2 of the width foreign side side of lateral plate 24 and the elongated area 260T of shank rivel elastomeric element.Like this, lateral plate 24 is engaged by a plurality of weld portion 28 and forms one.In addition, unfixing between adjacent weld portion 28 hydrophobicity sheet each other, be non-engagement state.Because of in disengaged state, and can not destroy sense of touch and the flexibility of lateral plate.

In the lateral plate 24 of diaper 1, weld portion 28 is set to loose point-like as shown in Figure 3.The not special restriction of the shape of weld portion 28, such as being the shape arbitrarily such as circle, ellipse, rhombus, triangle, polygon.Never destroy the viewpoint of wearing feeling, the melting an of weld portion 28 (seal, sealing) preferred 0.1mm of pattern area ²above, more preferably 0.2mm ²above, in addition, preferred 3mm ²below, more preferably 2mm ²below, more specifically, preferred 0.3mm ²above 1mm ²below, more preferably 0.4mm ²above 0.8mm ²below.Never destroy the viewpoint of wearing feeling, more than the immediate adjacent weld portion 28 preferred 1mm in interval each other, more preferably more than 1.5mm, in addition, preferably below 10mm, more preferably below 8mm, more specifically, preferably below the above 6mm of 2mm, more preferably below the above 4mm of 2mm.By extending interval, can not destroy sense of touch and flexibility that lateral plate has.Said interval refers to that beeline between the edge in opposite directions between two weld portion is as interval herein.In addition, never destroy the viewpoint of wearing feeling, weld portion 28 preferably 1/cm of number is set ²above, more preferably 2/cm ²above, in addition, preferred 20/cm ²below, more preferably 15/cm ²below, more specifically, preferred 3/cm ²above 10/cm ²below, more preferably 4/cm ²above 8/cm ²below.In addition, from guaranteeing the viewpoint of the flexibility of product, the pattern area that always melting of a plurality of weld portion 28 is preferably more than 0.5% with the ratio of the gross area by the folding lateral plate 24 forming, more preferably more than 1%, in addition, preferably below 10%, more preferably below 8%, more specifically, preferably more than 1.5% below 6%, more preferably more than 2% below 4%.

Weld portion 28 such as can adopt hot melt, ultrasound wave is melting, high frequency is melting or these are melting two or more combination etc. and forming.The formation pattern of the weld portion 28 of diaper 1 is the dot pattern that is configured to loose point-like as mentioned above, but is not limited to this, such as being also the linear pattern that forms one or more wire weld portion on the long side direction of diaper 1 etc., clathrate pattern etc.In addition, also can be used together the two or more patterns that melting.

In diaper 1, as shown in Figure 1, under elongation state, being arranged at three-dimensional rivel on lateral plate 24 forms the elastomeric element 25 of use and under elongation state, is arranged at elastomeric element 26 that shank rivel on lateral plate 24 forms use length separately and arrange shortlyer than the length of the absorber of absorbent main body 2 23.In addition, in diaper 1, as shown in Figure 1, under elongation state, be arranged at Length Ratio that three-dimensional rivel on lateral plate 24 forms the elastomeric element 25 of use and under elongation state, be arranged at shank rivel on lateral plate 24 to form the length of elastomeric element 26 of use long.The three-dimensional rivel formation length of long side direction (Y-direction) of elastomeric element 25 of use of elongation state and the ratio of the length of the long side direction (Y-direction) of absorber 23 are preferably more than 60%, more preferably more than 65%, in addition, preferably below 95%, more preferably below 90%, more specifically, preferably more than 70% below 90%, more preferably more than 75% below 85%.The shank rivel formation length of long side direction (Y-direction) of elastomeric element 26 of use of elongation state and the ratio of the length of the long side direction (Y-direction) of absorber 23 are preferably more than 40%, more preferably more than 50%, in addition, preferably below 90%, more preferably below 80%, more specifically, preferably more than 55% below 75%, more preferably more than 60% below 70%.The three-dimensional rivel of elongation state forms the length of the length of elastomeric element 25 of use and the elastomeric element 26 of the shank rivel of elongation state formation use and compares, preferably 1.1 double-lengths, more preferably 1.2 double-lengths.

Under elongation state, being arranged at elastomeric element 26 its percentage elongations that shank rivel on lateral plate 24 forms use, than under elongation state, to be arranged at the percentage elongation of elastomeric element 25 of the three-dimensional rivel formation use on lateral plate 24 large.Particularly, shank rivel forms the elastomeric element 26 of use and the elastomeric element 25 that three-dimensional rivel forms use, and its material is unified, and size is identical, and makes its percentage elongation different.As shank rivel, form the elastomeric element 26 of use and the material that three-dimensional rivel forms the elastomeric element 25 of use, conventionally so long as can use with regard to being not particularly limited for the material of the absorbent commodity of disposable diaper etc.In diaper 1, the stress that stress when the percentage elongation 100% of take extends is the preferred 15gf～60gf of 30gf(scope) shank rivel forms the elastomeric element 26 of use and preferably at percentage elongation, more than 75% in the scope below 250%, with the state configuration of extending, fixes, and more preferably in more than 100% scope below 200%, with the state configuration of extending, fixes.In addition, the elastomeric element 26 that forms use with shank rivel is same, the stress that stress when the percentage elongation 100% of take extends is the preferred 15gf～60gf of 30gf(scope) three-dimensional rivel forms the elastomeric element 25 of use and preferably at percentage elongation, more than 50% in the scope below 200%, with the state configuration of extending, fixes, and more preferably in more than 75% scope below 150%, with the state configuration of extending, fixes.In addition, percentage elongation is to extend the length of the part increasing with respect to the ratio of natural length, and for example, if the elastomer of long 10cm is extended for 20cm, its percentage elongation is 100%.

The lateral plate 24 forming according to above mode as shown in Figure 5, at crotch bottom C, utilizes three-dimensional rivel to form the contractility of the elastomeric element 25 of use when dressing, and in the width of comparing with fixed part 27 of lateral plate 24, square side becomes three-dimensional rivel.Particularly, at crotch bottom C, the folding top 24T1 comparing with fixed part 27 by square side in width of lateral plate 24 separates and forms three-dimensional rivel from positive dough sheet 21.Meanwhile, utilize shank rivel to form the contractility of the elastomeric element 26 of use, the width foreign side side of comparing with fixed part 27 of lateral plate 24 becomes shank rivel.

As mentioned above, diaper 1 as shown in Figure 1, at drosal part B, is provided with respectively the flank sheet 3,3 of retractility in the both sides of absorbent main body 2.In addition, as mentioned above, lateral plate 24 is in diaper 1, as shown in Figure 4 and Figure 5, by spreading all over the fixed part 27 arranging endlong of absorbent main body 2, spread all in the skin abutment face (P side in Fig. 4) of sidepiece of the positive dough sheet 21 that is configured in endlong absorbent main body 2 of absorbent main body 2.In diaper 1, in the region that is provided with flank sheet 3 of drosal part B, as shown in Figure 4, lateral plate 24 is fixed on the sheet 31 that forms flank sheet 3 by face side bond layer 66, and by fixed part 27, be fixed on positive dough sheet 21, by many bonding agents continuous on long side direction (connecting adhesive layer 62), be fixed on from the lateral margin of this positive dough sheet and form to the extended outer composite sheet 22 of width (directions X) foreign side.Face side bond layer 66 is only formed at the part that is provided with flank sheet 3.

In addition, in diaper 1, the region except being provided with the region of flank sheet 3 in drosal part B, in crotch bottom C and the A of veutro portion, lateral plate 24 as shown in Figure 4, by fixed part 27, be fixed on positive dough sheet 21, comparing with fixed part 27 by the region of width foreign side side of lateral plate 24 is fixed in outer composite sheet 22 and formed by many bonding agents continuous on long side direction (connecting adhesive layer 62).Fixed part 27 and Duo Gen connecting adhesive layer 62 spread all over roughly forming endlong of absorbent main body 2.At the upper connecting adhesive layer 62 extending of long side direction (Y-direction), on width (directions X), vacate interval, than fixed part 27, by the leakage prevention sheet 22a of the outer composite sheet 22 of width (directions X) foreign side with than leakage prevention sheet 22a, in the region by the outer non-woven fabrics 22b of width (directions X) foreign side, preferably arrange more than 2 below 10 spreading all over, in diaper 1, be provided with 3.

In addition, in diaper 1, in two ends of the long side direction of absorbent main body 2, be that in a part of drosal part B and a part of the A of veutro portion, as shown in Figure 4, lateral plate 24 is fixed on positive dough sheet 21 by bond layer 67.Bond layer 67 as shown in Figure 4, is arranged at than fixed part 27 and leans on square side (CL of long side direction Central Line side) in width (directions X), is arranged in a part of the A of veutro portion and drosal part B, and does not arrange and crotch bottom C.

Flank sheet 3 in diaper 1 as shown in Figure 4, has the middle bond layer 37 of main body side bond layer 35, tip side bond layer 36 and Duo Gen.These bond layers 35,36,37 are all formed extended at both sides on diaper long side direction (Y-direction).In addition, in these bond layers 35,36,37, many elastomeric elements 33 are fixed between two pieces of sheets 31,32 by forming the bonding agent of each bond layer under elongation state, and at the position that elastomeric element 33 is not set, two pieces of sheets 31,32 are each other across directly engaging by forming the bonding agent of each bond layer.

Main body side bond layer 35 as shown in Figure 4, is arranged at absorbent main body 2 sides of the bearing of trend of flank sheet 3, fixes near the end of absorbent main body 2 sides of each elastomeric element 33 or its.Tip side bond layer 36 is arranged at the top ends 3a side of the bearing of trend of flank sheet 3, fixes near the end of top ends 3a side of flank sheet 3 of each elastomeric element 33 or its.Middle bond layer 37 is provided with many in the main body side bond layer 35 of the bearing of trend as flank sheet 3 and the zone line 30 in the region between tip side bond layer 36.The width of middle bond layer 37 is all less than aforementioned two bond layers 35,36, is interrupted and has formed many middle bond layers 37 in zone line 30.On the bearing of trend of flank sheet 3, main body side bond layer 35 and with between middle the bond layer 37 of its adjacency, the middle bond layer 37 of adjacency each other and tip side bond layer 36 and following between the middle bond layer 37 of its adjacency, be formed with respectively the non-bonding region 38 that bonding agent is not set.In the diaper 1 of present embodiment, the bearing of trend of flank sheet 3 is consistent with the width of diaper.

Main body side bond layer 35, tip side bond layer 36 and middle bond layer 37, as shown in Figure 3, all above extend at diaper long side direction (Y-direction) with many that extend on directions X (more preferably more than 3) elastomeric elements 33 across.Main body side bond layer 35, tip side bond layer 36 and middle bond layer 37 are preferably all gone up extension at diaper long side direction (Y-direction) with all elastomeric elements 33 that extend on directions X across, more preferably spread all over the total length between upper lower limb 3u, the 3d of flank sheet 3.

Non-bonding region 38 too, above extends at diaper long side direction (Y-direction) across with many that extend on directions X (more preferably more than 3) elastomeric elements 33.Non-bonding region 38 also preferably extends diaper long side direction (Y-direction) is upper with all elastomeric elements 33 that extend on directions X across, more preferably spreads all over the total length between upper lower limb 3u, the 3d of flank sheet 3.

As shown in Figure 4, the end 3b(of absorbent main body 2 sides is following also referred to as base end part 3b for flank sheet 3 in diaper 1) with the overlapping reinforcement of a part and body layer bond layer 35, with bond layer 63, strengthen.More specifically, as shown in Figure 4, the sheet 32 of the non-skin abutment face side that is arranged in flank sheet 3 (Fig. 4 Q side) in aforementioned two pieces of sheets 31,32 of formation flank sheet 3, base end part 3b at flank sheet 3 is folding to the non-skin abutment face side (Q side in Fig. 4) of this sheet 32, and this folding part uses bond layer 63 to engage with the non-skin abutment face of this sheet 32 by reinforcement.

The base end part 3b of flank sheet 3 is reinforced by such structure, so rigidity appropriateness strengthens, and has in addition for the traction force of the directions X sufficient intensity of cracky not.

The flank sheet 3 forming is like this positioned at the part of interval S and the outer non-woven fabrics 22b of outer composite sheet 22 that the folding top 24T2 in width (directions X) foreign side side in lateral plate 24 vacates and clips fixing.Particularly, the part of interval S and the outer non-woven fabrics 22b of outer composite sheet 22 that the base end part 3b being reinforced of flank sheet 3 is positioned at lateral plate 24 clip, by face side bond layer 66, be fixed on lateral plate 24, and be fixed in outer composite sheet 22 by many connecting adhesive layers 62.

In addition, in diaper 1, as shown in Figure 4, another piece of sheet 31 of the skin abutment face side that is arranged in flank sheet 3 (Fig. 4 P side) in aforementioned two pieces of sheets 31,32 of formation flank sheet 3, its end 3b is folding or not to skin abutment face side to the non-skin abutment face side of this sheet 31 yet, but can folded reinforcement as sheet 32 yet.

As shown in Figure 4, upper at the width (directions X) of diaper 1, main body side bond layer 35 forms dividually from outer bond layer 61Xiang foreign side.; main body side bond layer 35 is formed to be compared outer side (left side in Fig. 4) and locates with the end 61a of the diaper width foreign side side of outer bond layer 61; main body side bond layer 35 does not have overlapped part with outer bond layer 61, but forms dividually on directions X.

On the other hand, upper at diaper width (directions X), main body side bond layer 35, reinforcement preferably overlap not produce the mode in space (not having the part of bond layer) on diaper width with bond layer 63, connecting adhesive layer 62 and outer bond layer 61.

Main body side bond layer 35, reinforcement bond layer 63, connecting adhesive layer 62 and outer bond layer 61 be (the particularly mode shown in Fig. 4) preferably in a manner mentioned above, the extension endlong that spreads all over the Y-direction of magic tape 4, more preferably the extension endlong that spreads all in the same way, the Y-direction of flank sheet 3.

In addition, as shown in Figure 4, its top ends 3a also strengthens with bond layer 64 with the second overlapping reinforcement of a part and tip side bond layer 36 the flank sheet 3 of diaper 1.More specifically, as shown in Figure 4, the sheet 32 of the non-skin abutment face side that is arranged in flank sheet 3 (Fig. 4 Q side) in aforementioned two pieces of sheets 31,32 of formation flank sheet 3, top ends 3a at flank sheet 3 is folding to the non-skin abutment face side (Q side in Fig. 4) of this sheet 32, and this folding part engages with the non-skin abutment face of this sheet 32 with bond layer 64 by the second reinforcement.

The top ends 3a of flank sheet 3 is reinforced by such structure, so its rigidity appropriateness strengthens, and has in addition for the traction force of the directions X sufficient intensity of cracky not.

And as shown in Figure 4, the top ends 3a being reinforced in the manner described above of flank sheet 3 engages with magic tape 4 by the second connecting adhesive layer 65.

Magic tape 4 comprises and with base material 42 with this, with base material 42, engages the hook face component of the thread gluing of the mechanicalness face that forms set portion 41.And, only being engaged overlappingly with the top ends 3a of flank sheet 3 by the part forming with base material 42 in magic tape 4.In the present embodiment, the top ends 3a of flank sheet 3 engages by the second connecting adhesive layer 65 between base material 42 with band.As the hook face component of the thread gluing of mechanicalness face is fixed on the method on base material 42, the joint method arbitrarily such as bonding that adopts thermal welding or undertaken by bonding agent.

In addition, in the non-skin abutment face of the A of veutro portion of diaper 1, as shown in Figure 1, be provided with magic tape 4, more specifically, be provided with the hasp district 5 of set portion 41 sets that make magic tape 4.

In addition, in diaper 1, as shown in Figure 4, another piece of sheet 31 of the skin abutment face side that is arranged in flank sheet 3 (Fig. 4 P side) in aforementioned two pieces of sheets 31,32 of formation flank sheet 3, its top ends 3a is folding also folding to skin abutment face side to the non-skin abutment face side of this sheet 31, but also can be as sheet 32 folded and strengthen.

As shown in Figure 4, at the width (directions X) of diaper 1, tip side bond layer 36 inwardly forms side dividually from the second connecting adhesive layer 65.; the inner side of end 65b (right side in Fig. 4) of tip side bond layer 36 square side in than the diaper width of the second connecting adhesive layer 65 locates to form; tip side bond layer 36 and the second connecting adhesive layer 65 do not have overlapped part, on directions X, form dividually.

On the other hand, upper at diaper width (directions X), tip side bonding agent 36, second is strengthened overlapping not produce the mode in space (not having the part of bond layer) on diaper width with bond layer 64 and the second connecting adhesive layer 65.

Tip side bond layer 36 and second strengthens using bond layer 64 (the particularly mode shown in Fig. 4) preferably in a manner mentioned above, the extension endlong that spreads all over the Y-direction of magic tape 4, more preferably the extension endlong that spreads all in the same way, the Y-direction of flank sheet 3.The second connecting adhesive layer 65 is (the particularly mode shown in Fig. 4) preferably in a manner mentioned above, spread all over magic tape 4 Y-direction total length more than 50% length extend, more preferably the extension endlong that spreads all in the same way, the Y-direction of magic tape 4.

The disposable diaper of present embodiment 1 is being through to wearer with it time, as shown in Figure 2, with pulling magic tape 4, is making the state of flank sheet 3 for extending, the set portion 41 of this magic tape 4 is pressed and is fixed in hasp district 5.

Below, the action effect when using the diaper 1 of above-mentioned embodiment of the present utility model describes.

As shown in Figure 4 and Figure 5, diaper 1 is when putting on use, the lateral plate 24 that becomes three-dimensional rivel and become shank rivel at crotch bottom C consists of one piece of sheet, in it, the edge 24I of square end portion is folded to the position of fixed part 27 by the non-skin abutment face side to sheet (Q side in Fig. 4), the edge 24I of its foreign side end is folded to the position of fixed part 27 by the non-skin abutment face side to sheet (Q side in Fig. 4), form two-layer.Therefore, the anti-leakage of three-dimensional rivel and shank rivel improves.And, except be provided with three-dimensional rivel form use elastomeric element 25 region 25T and be provided with between the folded sheet of the region 24Z the region 26T of elastomeric element 26 that shank rivel forms use, a plurality of weld portion 28 that arranged discontinuously engage, therefore easily between adjacent weld portion 28 sheet to each other, form air layer, so the breathability of three-dimensional rivel and shank rivel and flexibility improve, and body fluid be difficult to by, the anti-leakage of three-dimensional rivel and shank rivel further improves.In addition, from folding top 24T2, vacate the region that interval S(does not exist elastomeric element), configuration fixed leg rivel forms the elastomeric element 26 of use, and the flexibility of therefore comparing with elastomeric element 26 by the part of width (directions X) foreign side further improves.Particularly in diaper 1, because a plurality of weld portion 28 are set to loose point-like, so breathability, flexibility and anti-leakage further improve.

In addition, diaper 1 has as shown in Figure 3: the elongated area 250T that makes to be provided with the three-dimensional rivel elastomeric element that region 25T that three-dimensional rivel forms the elastomeric element 25 of use extends in the whole region of long side direction (Y-direction); The elongated area 260T of the shank rivel elastomeric element extending in the whole region of long side direction (Y-direction) with the region 26T that makes to be provided with shank rivel and form the elastomeric element 26 of use does not arrange weld portion 28 in the elongated area 260T of the elongated area of three-dimensional rivel elastomeric element 250T and shank rivel elastomeric element.Therefore, breathability and the flexibility of three-dimensional rivel and shank rivel further improve.

In addition, the percentage elongation of the elastomeric element 26 of the shank rivel arranging under elongation state of the lateral plate 24 of diaper 1 formation use is larger than the percentage elongation of the elastomeric element 25 of the three-dimensional rivel formation use arranging under elongation state.Therefore, diaper 1 easily utilizes shank rivel to be fixed on the shank of wearer, and thus, three-dimensional rivel is easily followed the pars inguinalis of wearer.Consequently, the sidepiece of absorbent main body 2 is easily fit, can improve anti-leakage.

In addition, as shown in Figure 1, the length of the elastomeric element 26 of the shank rivel formation use of the Length Ratio elongation state of the elastomeric element 25 of the three-dimensional rivel formation use of elongation state is long for diaper 1.Therefore, can effectively use lateral plate 24, and easily allow the shape of absorber 23 and the shape of three-dimensional rivel and shank rivel be applicable to health, can improve anti-leakage.

In addition, as shown in Figure 4 and Figure 5, from fixed part 27 to width, the part of (directions X) foreign side is fixed on outer composite sheet 22 by many bonding agents (connecting adhesive layer 62) lateral plate 24 of diaper 1.Therefore, the breathability of shank rivel and flexibility improve.

In addition, the flank sheet 3 of diaper 1 as shown in Figure 4, there is not the region of elastomeric element in the interval S(that is positioned at lateral plate 24) part clip fixing with the outer non-woven fabrics 22b of outer composite sheet 22.At the interval of lateral plate 24 S(, there is not the region of elastomeric element) in, easily between adjacent weld portion 28 sheet to each other, produce air layer, therefore can improve the anti-leakage of the standing part of flank sheet 3.

As the flank sheet 3 of diaper 1, for example the base end part 3b of flank sheet 3 is strengthened with bond layer 63 by the folding and reinforcement of sheet 32, when main body side bond layer 35 separates on directions X with outer bond layer 61 on the other hand, in the engaged situation of same position of directions X, compare near the base end part 3b that can prevent at flank sheet 3 and produce part really up to the mark it with all interlayers from sheet 31 to outer non-woven fabrics 22b.

The bond layer separating on directions X is that main body side bond layer 35 is with the meaning of outer bond layer 61, improves the adhesive strength of flank sheet 3 and outer composite sheet 22, and improves outward appearance when bonding.The configuration position of the main body side bond layer 35 of flank sheet 3 easily becomes fold because of the contraction of elastomeric element 33.The in the situation that main body side bond layer 35 not separating with outer bond layer 61 on directions X, outer composite sheet 22 engages with the face with fold of flank sheet 3, and contact area reduces, and bond strength declines.In addition, because joint also there will be the fold of flank sheet 3 at the outer surface of outer composite sheet.But in diaper 1, the bond layer separating on directions X is main body side bond layer 35 and outer bond layer 61, therefore can avoid occurring such situation.

In addition, by use the breathability sheets such as non-woven fabrics in sheet 31,32 etc., also easily near the junction surface of flank sheet 3 and absorbent main body 2, guarantee good breathability.

In addition, as diaper 1, for example, when main body side bond layer 35, reinforcement do not overlap not produce each other the mode in space with bond layer 63, connecting adhesive layer 62 and outer bond layer 61, and bond layer is consecutive hours on directions X in fact, though can flank sheet 3 and absorbent main body 2, from main body side bond layer 35 to the part of outer bond layer 61, guarantee that tractive flank sheet 3 is also difficult to damaged enough intensity.

And, as the flank sheet 3 of diaper 1, for example the top ends 3a of flank sheet 3 is also strengthened strengthening with bond layer 64 by the folding of sheet 32 and second, the top ends 3a being reinforced utilizes the second connecting adhesive layer 65 to engage with magic tape 4, therefore can strengthen the intensity of the fixed position of the magic tape 4 in flank sheet 3.

In addition, as diaper 1, for example, when tip side bond layer 36 separates on directions X with the second connecting adhesive layer 65, compare in the engaged situation of same position of directions X with all interlayers with base material 42 from sheet 31 to magic tape 4, can prevent at the connecting portion of magic tape 4 and flank sheet 3 or near it, produce part really up to the mark.In addition, by use the breathability sheets such as non-woven fabrics in sheet 31,32 etc., also easily near flank sheet 3 and top ends 3a, guarantee good breathability.

In addition, as diaper 1, for example, when tip side bond layer 36, second is strengthened not overlapping not produce each other the mode in space with bond layer 64 and the second connecting adhesive layer 65, and bond layer is consecutive hours on directions X in fact, though can be in magic tape 4 and flank sheet 3 from the second connecting adhesive layer 65 to the part of tip side bond layer 36, guarantee that tractive magic tape 4 is also difficult to damaged enough intensity.

Therefore in the diaper 1 of present embodiment, because thering is above-mentioned structure, even if apply strong traction force on magic tape 4, flank sheet 3, in the whole region from magic tape 4 to absorbent main body 2, be also difficult to occur fracture and break wait breakage.

In addition, zone line 30 at disposable diaper 1, and the bond layer of adjacency between non-bonding region 38 is set and bond layer 37 in the middle of forming, under the naturalness of diaper 1, contraction because of elastomeric element 33, two pieces of sheets 31,32 in non-bonding region 38 are respectively to the direction bulging away from elastomeric element 33, form to ride many pleats (not shown) that the mode of many elastomeric elements 33 is extended on the two sides of flank sheet 3.And this pleat can not disappear completely under the wearing state of diaper yet.Therefore, the part because of bond layer 36～37 hardening in flank sheet 3, is particularly difficult to encounter the skin of wearer because of the part of middle bond layer 37 hardening, do not have sense of discomfort.

For aforesaid face side bond layer 66, main body side bond layer 35, bond layer 63, connecting adhesive layer 62, outer bond layer 61, tip side bond layer 36, the second reinforcement bond layer 64, the second connecting adhesive layer 65 and middle bond layer 37 for reinforcement, can, by after adopting and smearing bonding agent in one or both in clipping respectively two pieces of sheets of above-mentioned each bond layer of various well-known methods, these two pieces of sheets be overlapped and be pressurizeed and form.

In addition, form the application pattern of the bonding agent of each bond layer, as adhesive applicating machine, preferably use spray gun, coating gun etc. to carry out so-called seamless coating, but as adhesive applicating machine, also can use pearl shape spray gun (bead gun), spiral spray gun, Ω word shape spray gun, transfer roll etc., carry out the pattern coating of linearity, helical form, Ω word shape, point-like etc.

Constituent material to diaper 1 describes.

As forming the sheet 31,32 of flank sheet 3, the band base material 42 of magic tape 4, not special restriction can be used various that in the absorbent commodities such as disposable diaper, physiological napkin, used in the past.

For example, as sheet 31,32, band base material 42, can use non-woven fabrics, fabric, thin film or their lamination sheets etc.

As the positive dough sheet 21, outer composite sheet 22, the absorber 23 that form absorbent main body 2, not special restriction, can be used respectively the sheet that uses in the absorbent commodity such as disposable diaper, physiological napkin in the past etc.For example, as positive dough sheet 21, can use the non-woven fabrics of hydrophilic and liquid permeability or three-dimensional perforated film etc.As outer composite sheet 22, its leakage prevention sheet 22a can be used liquid impermeability or liquid to be difficult to the permeability resin film of (comprising water-repellancy), its outer non-woven fabrics 22b can be used the material for example, consisting of the non-woven fabrics of making according to the whole bag of tricks (, hot-wind nonwoven cloth, spun-bonded non-woven fabrics, spun-laced nonwoven fabric, needle punched non-woven fabrics etc.).Outer non-woven fabrics 22b can be also multi-ply construction.In addition, as absorber 23, can use with the thin paper of water penetration or the fiber assemblies (can be also non-woven fabrics) such as the coated paper pulp fiber of clad sheet of non-woven fabrics formation or the materials such as absorbent core that keep therein water-absorbent polymer particles to form.Lateral plate 24 as forming three-dimensional rivel and shank rivel, can be used thin film, non-woven fabrics, fabric or their lamination sheets etc.

As elastomeric element 33, three-dimensional rivel, form the elastomeric element 25 of use, the elastomeric element 26 that shank rivel forms use, can use the wire that formed by polyethylene-alpha olefin copolymers such as natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-poly butadiene copolymer, ethyl acrylate-ethylene etc. or the elastomeric element of rope form.From reducing manufacturing cost and simplifying the viewpoints such as manufacturing process, be arranged at the preferred identical type material of many elastomeric elements 33 on a slice flank sheet with identical percentage elongation setting.

As the bonding agent of secures resilient member 33,25,26, can enumerate: the thermoplastic polymers such as amorphous polyolefin, ethylene-vinyl acetate copolymer (EVA), vinyl-acrylate copolymer (EEA), styrene butadiene styrene block copolymer (SBS) (SBS), styrene isoprene styrene block copolymer (SIS) (SIS), styrene-ethylene/butylene-styrene block copolymer (SEBS), styrene-ethylene/propylene-styrene block copolymer (SEPS) and their mixture etc.The preferred heat molten type of bonding agent.

Disposable diaper of the present utility model and flank sheet 3, lateral plate 24, its manufacture method, can be according to method manufacture arbitrarily without any restriction.

The situation of manufacturing the flank sheet 3 in diaper 1 of take is example, and the preferred example of the manufacture method of the flank sheet in disposable diaper is described.

A preferred routine manufacture method with reference to Fig. 6 offside fin 3 describes, and the manufacturing installation 7 of the telescopic sheet shown in Fig. 6 comprises: a pair of line be arrangeding in parallel at a distance of predetermined distance is carried with long tectosome 71,71; Elastomer winding mechanism 72, carries with the elastomeric element of reeling on long tectosome at a pair of this line, makes the direction of using the long side direction (R direction in figure) of long tectosome to intersect with this line conveying that is oriented of this elastomeric element; With integrated mechanism 73, will be wound onto on this elastomer winding mechanism 72 and by this line, carried this elastomeric element 33 with long tectosome conveying to be clipped between a pair of banded sheet 31 ', 32 ' to form one.As line, carry with long tectosome 71, preferably use endless band, the reverse movable part that this endless band has forward (forward) movable part that moves to R direction and moves to the rightabout of R direction, only forward movable part engages with elastomeric element 33, and this elastomeric element 33 is carried to R direction.Endless band is erected on pulley and gear, rotates this pulley and gear and makes its driving.In addition, as each line, carry with long side direction tectosome 71, also can only use an above-mentioned this endless band, but as shown in Figure 6, as each line, carry with long tectosome 71, preferably use the structure that this endless band is configured to upper and lower two-stage.By speed difference being set being with up and down, can carry and by the direction of overlooking at first the elastomeric element 33 of indentation on long tectosome 71,71, be modified as elastomeric element 33 and in R direction, vacate the state that compartment of terrain is configured to majority one-tenth parallel shapes being wound on a pair of line, and be fixed between a pair of banded sheet 31 ', 32 '.As line, carry with long tectosome 71, also can use helically on side face that the round clava of groove or raised line and the tectosome rotariling actuate around central axis are set.

In the preferred manufacture method of flank sheet 3, as shown in Figure 6, utilize well-known adhesive applicating machine 75, on the banded sheet 32 ' of the original fabrics as sheet 32, the ground continuously coating that becomes band is respectively used for form strengthening with bond layer 63 and the second bonding agent 63 ' and 64 ' of strengthening with bond layer 64, then utilizes folding guide part (sailor) (not shown) etc. the both sides of this band shape sheet 32 ' to be folded to not relative with banded sheet 31 ' one side side with 64 ' mode to cover above-mentioned two bonding agents 63 '.On the other hand, utilize the well-known adhesive applicating machine 76 ground continuously coating that becomes band respectively on the banded sheet 31 ' of the original fabrics as sheet 31 to be used for forming the bonding agent 34 of main body side bond layer 35, tip side bond layer 36 and middle bond layer 37.In addition, also can be on banded sheet 32 ' adhesive-applying 34 continuously.

And, made to apply the banded sheet of after bonding agent two 31 ', the 32 ' mode that clips the elastomeric element 33 of elongation state with between merges, and is used as a pair of nip rolls 74 of integrated mechanism 73, thereby from up and down their pressurizations being formed to one.Then, utilize and be equipped with the cutting mechanisms such as cutting device 77 cuttings of cutter at the elastomeric element 33 of side extension, obtain thus telescopic sheet 3 '.

Then, utilize cutting mechanism arbitrarily resulting telescopic sheet 3 ' to be cut into successively to the length of each flank sheet.Like this, can effectively produce continuously flank sheet 3.

In the manufacture method of disposable diaper, except using above-mentioned flank sheet 3(telescopic sheet 3 '), can manufacture disposable diaper according to existing well-known method.

In preferred manufacture method, for example, use above-mentioned flank sheet 3(telescopic sheet 3 '), according to the step of following (1)～(10), can effectively manufacture diaper.(1) cutting is coated with for forming the continuous screen cloth (web) of magic tape 4 of the bonding agent of the second connecting adhesive layer 65, its compartment of terrain is arranged on the continuous screen cloth of the telescopic sheet 3 ' obtaining according to the method described above.(2) folding magic tape 4 is temporarily fixed on stretchable sheet 3 '.(3) (main body the connects use) bonding agent that is used for forming connecting adhesive layer 62 is coated on stretchable sheet 3 ' continuously.(4) in order to obtain lateral plate 24, the both sides of folding serialgram in other operation.With bonding agent, elastomeric element 25 is fixed under elongation state to a folding top after folding, with bonding agent, elastomeric element 26 is fixed under elongation state to another folding top.Then, by hot melt, the method such as, in being provided with the region 25T of elastomeric element 25 and being provided with the region 24Z the region 26T of elastomeric element 26, weld portion 28 formation one are being set.(5) form top sheet continuum, it is to utilize according to hot melt and wait the fixed part 27 forming, and also utilizes bond layer 67, make the lateral plate 24 that obtains in other operation and just dough sheet 21 form as one and form.(6) in other operation, make leakage prevention sheet 22a and outer non-woven fabrics 22b form one and form outer composite sheet 22.(7) cut discontinuously stretchable sheet 3 ', and be arranged on positive dough sheet 21(lateral plate 24 by face side bond layer 66) upper, by connecting adhesive layer 62, be arranged in outer composite sheet 22.(8) between positive dough sheet 21 and outer composite sheet 22, clipping absorber 22 forms as one.(9) product both sides (flank sheet ledge) is folding to the inside.(10) cut into a product.

The manufacture method of disposable diaper, except using the flank sheet 3 manufacture disposable diapers that obtain according to the method described above, can manufacture disposable diaper according to existing well-known method.

Above, according to this utility model has preferred embodiment been described, but disposable diaper of the present utility model is not limited to the diaper 1 of above-mentioned embodiment completely, can appropriate change.

For example, in the diaper 1 of above-mentioned embodiment, as shown in Figure 4 and Figure 5, lateral plate 24 is by folding formation of non-skin abutment face side (Q side in Fig. 4) to sheet by the edge 24I of the interior square end portion of one piece of sheet, but also can be to the skin abutment face side (P side in Fig. 4) of sheet folding and form.In addition, in diaper 1, lateral plate 24, same with the edge 24I of interior square end portion, by folding formation of non-skin abutment face side (Q side in Fig. 4) to sheet by the edge 24I of the foreign side end of one piece of sheet, but also can to the skin abutment face side (P side in Fig. 4) of sheet, fold and form.That is, the edge 24I of the edge 24IHe foreign side end of interior square end portion is all folding to non-skin abutment face side (Q side in Fig. 4) or skin abutment face side (P side in Fig. 4).

In addition, in the diaper 1 of above-mentioned embodiment, as shown in Figure 3, lateral plate 24 does not form weld portion 28 in the whole region of the elongated area 260T of the elongated area of three-dimensional rivel elastomeric element 250T and shank rivel elastomeric element, but also can be in the 250T of the elongated area of three-dimensional rivel elastomeric element be provided with in the region beyond the region 25T of elastomeric element 25 that three-dimensional rivel forms use, in comparing the region by long side direction (Y-direction) Liang Ge foreign side with this region 25T, form weld portion 28, also can be in the elongated area 260T of shank rivel elastomeric element be provided with in the region beyond the region 26T of elastomeric element 26 that shank rivel forms use, in comparing the region by long side direction (Y-direction) Liang Ge foreign side than this region 26T, form weld portion 28.

In addition, in the diaper 1 of above-mentioned embodiment, lateral plate 24 is fixed on sheet 31 by face side bond layer 66, also can fix by the thermal welding beyond bonding agent.

In addition, in the diaper 1 of above-mentioned embodiment, as shown in Figure 4, the folding sheet 32 that forms flank sheet 3 with strengthen the bond layer 64 for reinforcement with bond layer 63(second) engage, but can not fold yet.In addition, the sheet 32 that forms flank sheet 3 even folding with strengthen the adhesive linkage 64 for reinforcement with bond layer 63(second) engage, also can the end of the sheet 32 of the base end part 3b side of flank sheet 3 or top ends 3a side is folding to skin abutment face side (P side in Fig. 4), can also pleated sheet 31 replace forming the sheet 32 of flank sheet 3.In addition, also can pleated sheet 32 with sheet 31 both.In addition, also can arrange overlappingly that other sheets replace the folding sheet 32 that forms flank sheet 3 and with strengthen the bond layer 64 for reinforcement with bonding agent 63(second) engage.

In addition, in the diaper 1 of above-mentioned embodiment, as shown in Figure 4, represented the example of the skin abutment face side with base material 42 use bonding agents and sheet 32 of magic tape 4 (the not face of sheet 31 sides) side engagement, but also can be with bonding agent by skin abutment face (the not face of the sheet 32 sides) side engagement with sheet 31 with base material 42, or be arranged between sheet 31 and sheet 32, and engage with bonding agent.

For disposable diaper of the present utility model, except the disposable diaper of the deploying type that is provided with retractility flank sheet 3,3 as diaper 1, can be for example also the disposable diaper that the deploying type of flank sheet 3,3 is not set, can also be pull-on disposable diaper.

For above-mentioned embodiment, following disposable diaper is also disclosed.

＜1＞

A disposable diaper,

Above-mentioned disposable diaper comprises the absorbent main body of lengthwise, this absorbent main body have liquid retentivity absorber, be disposed at this absorber skin abutment face side positive dough sheet and be disposed at the outer composite sheet of the non-skin abutment face side of this absorber, when above-mentioned absorbent main body is divided into and dresses in the veutro portion of the veutro of wearer, at the drosal part of dorsal part be disposed at the crotch bottom between this veutro portion and this drosal part

Described absorbent main body possesses lateral plate in the both sides of the long side direction of this absorbent main body,

Described lateral plate is folding along long side direction by the width both sides of the hydrophobicity sheet of a slice lengthwise respectively, along the long side direction of absorbent main body, by fixed part, this hydrophobicity sheet configuration is fixed on to the skin abutment face of described positive dough sheet,

Square side in the width of described lateral plate, with the edge of the interior square end portion of the long side direction along this hydrophobicity sheet, arrive the mode of position or the position that this fixed part is crossed in arrival of described fixed part, this hydrophobicity sheet is folded into skin abutment face side or non-skin abutment face side along long side direction, form folding top, near this folding top of described crotch bottom, the elastomeric element that many three-dimensional rivels is formed to use configures and is fixed between described hydrophobicity sheet under the state extending along long side direction

Width foreign side side at described lateral plate, with the edge of the foreign side end of the long side direction along described hydrophobicity sheet, arrive the mode of the position of described fixed part or the position of Bi Qigengkao width foreign side side, by this hydrophobicity sheet along long side direction, folding to the side that the folded side of square side hydrophobicity sheet in the described width with among skin abutment face side and non-skin abutment face side is identical, form folding top, from this folding top of described crotch bottom, vacate compartment of terrain, the elastomeric element that many shank rivels is formed to use configures and is fixed between described hydrophobicity sheet under the state extending along long side direction,

Described lateral plate, except be provided with described many three-dimensional rivels form use elastomeric element region and be provided with between the folding overlapping described hydrophobicity sheet in the region the region of elastomeric element that described many shank rivels form use, a plurality of weld portion that arranged discontinuously engage fixing, between this adjacent weld portion described hydrophobicity sheet each other, it is non-engagement state

When dressing, in described crotch bottom, utilize described three-dimensional rivel to form the contractility of the elastomeric element of use, compare square side in width with the described fixed part of described lateral plate and become three-dimensional rivel, and utilize described shank rivel to form the contractility of the elastomeric element of use, comparing width foreign side side with the described fixed part of described lateral plate becomes shank rivel.

＜2＞

Disposable diaper as described in aforementioned < 1 >,

Comprise: the elongated area that makes to dispose three-dimensional rivel elastomeric element region that described many three-dimensional rivels form the elastomeric element of use extending to the whole region of the long side direction of described absorbent main body; With the elongated area of the shank rivel elastomeric element that the region that disposes the elastomeric element of described many shank rivels formation use is extended to the whole region of the long side direction of described absorbent main body,

Except dispose described many three-dimensional rivels form use elastomeric element region and dispose described many shank rivels and form the region the region of elastomeric element of use, the region between the elongated area of described three-dimensional rivel elastomeric element and the elongated area of described shank rivel elastomeric element, and the region between the described folding top of the width foreign side side of described lateral plate and the elongated area of described shank rivel elastomeric element.

＜3＞

Disposable diaper as described in aforementioned < 1 > or < 2 >,

Described weld portion is set to loose point-like.

＜4＞

Disposable diaper as described in any one in aforementioned < 1 >～< 3 >,

When dressing, described lateral plate becomes three-dimensional rivel and becomes shank rivel in crotch bottom.

＜5＞

Disposable diaper as described in any one in aforementioned < 1 >～< 4 >,

In described lateral plate, described weld portion is set to loose point-like, and the shape of this weld portion is circle, ellipse, rhombus, triangle, polygonal shape.

＜6＞

Disposable diaper as described in any one in aforementioned < 1 >～< 5 >,

It is 0.1mm that of described weld portion is being melted pattern area ²above 3mm ²below.

＜7＞

Disposable diaper as described in any one in aforementioned < 1 >～< 6 >,

Adjacent described weld portion interval each other be below the above 10mm of 1mm.

＜8＞

Disposable diaper as described in any one in aforementioned < 1 >～< 7 >,

The number that arranges of described weld portion is 1/cm ²above 20/cm ²below.

＜9＞

Disposable diaper as described in any one in aforementioned < 1 >～< 8 >,

It is 0.1mm that of described weld portion is being melted pattern area ²above 3mm ²below, adjacent described weld portion interval each other be below the above 10mm of 1mm, it is 1/cm that number is set ²above 20/cm ²below.

＜10＞

Disposable diaper as described in aforementioned < 1 > or < 2 >,

Described weld portion use hot melt, ultrasound wave is melting, high frequency is melting or the two or more combination of these methods forms,

The formation pattern of described weld portion is the linear pattern that forms one or more wire weld portion in the directions such as long side direction of diaper 1, clathrate pattern or and with the two or more patterns that melting pattern.

＜11＞

Disposable diaper as described in any one in aforementioned < 1 >～< 10 >,

The percentage elongation of the elastomeric element of described shank rivel formation use is larger than the percentage elongation of the elastomeric element of described three-dimensional rivel formation use.

＜12＞

Disposable diaper as described in any one in aforementioned < 1 >～< 11 >,

Described in the elastomeric element that the described three-dimensional rivel configuring under elongation state forms the elastomeric element of use and the described shank rivel that configures under elongation state forms use Length Ratio separately, to put forward length short for absorbability,

The length of the elastomeric element of the described shank rivel formation use that the Length Ratio of the elastomeric element of the described three-dimensional rivel formation use configuring under elongation state configures under elongation state is long.

＜13＞

Disposable diaper as described in any one in aforementioned < 1 >～< 12 >,

In described crotch bottom, the region of fixed part Geng Kao width foreign side side, is fixed in described outer composite sheet by many bonding agents continuous on long side direction described in the ratio of described lateral plate.

＜14＞

Disposable diaper as described in any one in aforementioned < 1 >～< 13 >,

At described drosal part, in the both sides of absorbent main body, dispose respectively the flank sheet of retractility.

＜15＞

Disposable diaper as described in any one in aforementioned < 1 >～< 14 >,

At described drosal part, in the both sides of the long side direction along described absorbent main body, dispose respectively the flank sheet of retractility,

Described outer composite sheet has the leakage prevention sheet of the difficult permeability of liquid and the outer non-woven fabrics engaging with the non-skin abutment face side (outer surface side) of this leakage prevention sheet,

The part at described interval and the described outer non-woven fabrics of described outer composite sheet that the described folding top in width foreign side side that the interior square side of width of described flank sheet is located at lateral plate is vacated clip and are fixed.

＜16＞

Disposable diaper as described in aforementioned < 15 >,

Described flank sheet has the middle bond layer of main body side bond layer, tip side bond layer and Duo Gen,

Described bond layer is all formed extended at both sides on disposable diaper long side direction (Y-direction), in described bond layer, many elastomeric elements are fixed between two pieces of sheets by forming the bonding agent of this bond layer under elongation state, and at the position of this elastomeric element not, two pieces of sheets directly engage by forming this bonding agent of this bond layer each other.

＜17＞

Disposable diaper as described in aforementioned < 16 >,

Width (directions X) at disposable diaper is upper, and described main body side bond layer forms to foreign side dividually from described outer bond layer.

＜18＞

Disposable diaper as described in aforementioned < 16 > or < 17 >,

Described flank sheet is used to be strengthened strengthening with bond layer,

Described lateral plate is fixed on the described outer composite sheet of extending to width (directions X) foreign side from the lateral margin of described positive dough sheet by many connecting adhesive layers continuous on long side direction,

Upper at disposable diaper width (directions X), described main body side bond layer, described reinforcement for bond layer, described connecting adhesive layer and described outer bond layer in the mode in diaper width generation space (not having the part of bond layer) not, overlap.

＜19＞

Disposable diaper as described in any one in aforementioned < 14 >～< 18 >,

Described flank sheet is provided with magic tape in top ends, and above-mentioned flank sheet has two sheets and is fixed on the elastomeric element between these two sheets, and this flank sheet is rectangle under the state that becomes plane expansion.

＜20＞

Disposable diaper as described in any one in aforementioned < 14 >～< 19 >,

Described flank sheet has nonwoven fabric two sheets and many elastomeric elements, and above-mentioned elastomeric element is fixed between two pieces of sheets under the upper state extending of disposable diaper width (directions X),

The magic tape that is arranged at the top ends of described flank sheet is used for this flank sheet to be fixedly bonded on other position,

Described elastomeric element arranges along disposable diaper width (directions X) respectively,

Many described elastomeric elements of described flank sheet are in the upper arranged spaced with about equally of the long side direction (Y-direction) of disposable diaper.

＜21＞

Disposable diaper as described in aforementioned < 19 > or < 20 >,

The sheet that forms the outer surface side that is positioned at this flank sheet in described two sheets of described flank sheet is folding to the outer surface side of this sheet in the top ends of this flank sheet, and this folded part engages with the outer surface of this sheet with bond layer by the second reinforcement.

＜22＞

Disposable diaper as described in any one in aforementioned < 1 >～< 21 >,

Under the state that described lateral plate connects at the edge of the edge of the folded described interior square end portion of described hydrophobicity sheet and folded described foreign side end, form one.

＜23＞

Disposable diaper as described in any one in aforementioned < 1 >～< 22 >,

The elastomeric element that described three-dimensional rivel forms use disposes 1 above below 4.

＜24＞

Disposable diaper as described in any one in aforementioned < 1 >～< 23 >,

The elastomeric element that described shank rivel forms use disposes 1 above below 4.

＜25＞

Disposable diaper as described in any one in aforementioned < 1 >～< 24 >,

The ratio of the length W1 of the width at described interval and the width of described lateral plate (directions X) is more than 5% below 40%.

＜26＞

Disposable diaper as described in any one in aforementioned < 1 >～< 25 >,

Described lateral plate, under the state connecting in folded described interior square end portion (folded hydrophobicity sheet described interior square end portion) and folded described foreign side end (the described foreign side end of folded hydrophobicity sheet), form one, the edge of the interior square end of folded this portion in one plane aligns with the edge of this folded foreign side end, thereby lateral plate forms ring-type.

＜27＞

Disposable diaper as described in any one in aforementioned < 1 >～< 26 >,

Described lateral plate is fixed on by many connecting adhesive layers continuous on long side direction the described outer composite sheet of extending to width (directions X) foreign side from the lateral margin of described positive dough sheet,

Described in described fixed part and Duo Gen, connecting adhesive layer spreads all over roughly forming endlong of described absorbent main body,

Described connecting adhesive layer is vacated interval on width (directions X), spreading all over than described fixed part more by the leakage prevention sheet of the described outer composite sheet of width (directions X) foreign side with than leakage prevention sheet more in the region by the outer non-woven fabrics of width (directions X) foreign side, dispose 2 above below 10.

＜28＞

Disposable diaper as described in aforementioned < 19 >,

Described magic tape has band base material,

As described band base material, use non-woven fabrics, fabric, thin film or their lamination sheets.

＜29＞

Disposable diaper as described in any one in aforementioned < 1 >～< 28 >,

As described positive dough sheet, use non-woven fabrics or the three-dimensional perforated film of hydrophilic and liquid permeability.

＜30＞

Disposable diaper as described in any one in aforementioned < 1 >～< 29 >,

As described outer composite sheet, leakage prevention sheet consists of the resin film of opaque liquid or the difficult permeability of liquid (comprising water-repellancy), and outer non-woven fabrics consists of non-woven fabrics (hot-wind nonwoven cloth, spun-bonded non-woven fabrics, spun-laced nonwoven fabric, needle punched non-woven fabrics).

＜31＞

Disposable diaper as described in any one in aforementioned < 1 >～< 30 >,

The clad sheet that uses thin paper or non-woven fabrics by water penetration to form as described absorber is coated the aggregation of the fibers such as paper pulp fiber or keeps therein the material of the absorbent core that water-absorbent polymer particles forms.

＜32＞

Disposable diaper as described in any one in aforementioned < 1 >～< 31 >,

As the described lateral plate that forms described three-dimensional rivel and described shank rivel, use thin film, non-woven fabrics, fabric or their lamination sheets.

Industrial utilizability

According to this utility model, provide a kind of disposable diaper that is provided with the three-dimensional rivel that breathability, flexibility and anti-leakage are high.

Claims (32)

1. a disposable diaper, is characterized in that:

Described disposable diaper comprises the absorbent main body of lengthwise, described absorbent main body have liquid retentivity absorber, be disposed at this absorber skin abutment face side positive dough sheet and be disposed at the outer composite sheet of the non-skin abutment face side of this absorber, when described absorbent main body is divided into and dresses in the veutro portion of the veutro of wearer, at the drosal part of dorsal part be disposed at the crotch bottom between this veutro portion and this drosal part

Described absorbent main body possesses lateral plate in the both sides of the long side direction of this absorbent main body,

Described lateral plate is folding along long side direction by the width both sides of the hydrophobicity sheet of a slice lengthwise respectively, along the long side direction of absorbent main body, by fixed part, this hydrophobicity sheet configuration is fixed on to the skin abutment face of described positive dough sheet,

Square side in the width of described lateral plate, with the edge of the interior square end portion of the long side direction along this hydrophobicity sheet, arrive the mode of position or the position that this fixed part is crossed in arrival of described fixed part, this hydrophobicity sheet is folded into skin abutment face side or non-skin abutment face side along long side direction, form folding top, near this folding top of described crotch bottom, the elastomeric element that many three-dimensional rivels is formed to use configures and is fixed between described hydrophobicity sheet under the state extending along long side direction

Width foreign side side at described lateral plate, with the edge of the foreign side end of the long side direction along described hydrophobicity sheet, arrive the mode of the position of described fixed part or the position of Bi Qigengkao width foreign side side, by this hydrophobicity sheet along long side direction, folding to the side that the folded side of square side hydrophobicity sheet in the described width with among skin abutment face side and non-skin abutment face side is identical, form folding top, from this folding top of described crotch bottom, vacate compartment of terrain, the elastomeric element that many shank rivels is formed to use configures and is fixed between described hydrophobicity sheet under the state extending along long side direction,

Described lateral plate, except be provided with described many three-dimensional rivels form use elastomeric element region and be provided with between the folding overlapping described hydrophobicity sheet in the region the region of elastomeric element that described many shank rivels form use, a plurality of weld portion that arranged discontinuously engage fixing, between this adjacent weld portion described hydrophobicity sheet each other, it is non-engagement state

When dressing, in described crotch bottom, utilize described three-dimensional rivel to form the contractility of the elastomeric element of use, compare square side in width with the described fixed part of described lateral plate and become three-dimensional rivel, and utilize described shank rivel to form the contractility of the elastomeric element of use, comparing width foreign side side with the described fixed part of described lateral plate becomes shank rivel.

2. disposable diaper as claimed in claim 1, is characterized in that, comprising:

Make to dispose the elongated area of three-dimensional rivel elastomeric element region that described many three-dimensional rivels form the elastomeric element of use extending to the whole region of the long side direction of described absorbent main body; With the elongated area of the shank rivel elastomeric element that the region that disposes the elastomeric element of described many shank rivels formation use is extended to the whole region of the long side direction of described absorbent main body,

Except dispose described many three-dimensional rivels form use elastomeric element region and dispose described many shank rivels and form the region the region of elastomeric element of use, the region between the elongated area of described three-dimensional rivel elastomeric element and the elongated area of described shank rivel elastomeric element, and the region between the described folding top of the width foreign side side of described lateral plate and the elongated area of described shank rivel elastomeric element.

3. disposable diaper as claimed in claim 1 or 2, is characterized in that:

Described weld portion is set to loose point-like.

4. disposable diaper as claimed in claim 1, is characterized in that:

When dressing, described lateral plate becomes three-dimensional rivel and becomes shank rivel in crotch bottom.

5. disposable diaper as claimed in claim 1, is characterized in that:

In described lateral plate, described weld portion is set to loose point-like, and the shape of this weld portion is circle, ellipse, rhombus, triangle or polygonal shape.

6. disposable diaper as claimed in claim 5, is characterized in that:

It is 0.1mm that of described weld portion is being melted pattern area ²above 3mm ²below.

7. disposable diaper as claimed in claim 5, is characterized in that:

Adjacent described weld portion interval each other be below the above 10mm of 1mm.

8. disposable diaper as claimed in claim 5, is characterized in that:

The number that arranges of described weld portion is 1/cm ²above 20/cm ²below.

9. disposable diaper as claimed in claim 5, is characterized in that:

It is 0.1mm that of described weld portion is being melted pattern area ²above 3mm ²below, adjacent described weld portion interval each other be below the above 10mm of 1mm, it is 1/cm that number is set ²above 20/cm ²below.

10. disposable diaper as claimed in claim 5, is characterized in that:

Described weld portion use hot melt, ultrasound wave is melting, high frequency is melting or the two or more combination of these methods forms,

The formation pattern of described weld portion is the linear pattern that forms one or more wire weld portion on diaper, clathrate pattern or and with the two or more patterns that melting pattern.

11. disposable diapers as claimed in claim 1, is characterized in that:

The percentage elongation of the elastomeric element of described shank rivel formation use is larger than the percentage elongation of the elastomeric element of described three-dimensional rivel formation use.

12. disposable diapers as claimed in claim 1, is characterized in that:

Described in the elastomeric element of the elastomeric element of the described three-dimensional rivel formation use configuring under elongation state and the described shank rivel formation use configuring under elongation state Length Ratio separately, the length of absorber is short,

The length of the elastomeric element of the described shank rivel formation use that the Length Ratio of the elastomeric element of the described three-dimensional rivel formation use configuring under elongation state configures under elongation state is long.

13. disposable diapers as claimed in claim 1, is characterized in that:

In described crotch bottom, the region of fixed part Geng Kao width foreign side side, is fixed in described outer composite sheet by many bonding agents continuous on long side direction described in the ratio of described lateral plate.

14. disposable diapers as claimed in claim 1, is characterized in that:

In described drosal part, in the both sides of absorbent main body, dispose respectively the flank sheet of retractility.

15. disposable diapers as claimed in claim 14, is characterized in that:

In described drosal part, in the both sides of the long side direction along described absorbent main body, dispose respectively the flank sheet of retractility,

Described outer composite sheet have the difficult permeability of liquid leakage prevention sheet and with the outer non-woven fabrics of the non-skin abutment face side engagement of this leakage prevention sheet,

The part at described interval and the described outer non-woven fabrics of described outer composite sheet that the described folding top that the interior square side of width of described flank sheet is located at the width foreign side side of lateral plate is vacated clip and are fixed.

16. disposable diapers as claimed in claim 15, is characterized in that:

Described flank sheet has the middle bond layer of main body side bond layer, tip side bond layer and Duo Gen,

Described bond layer is all formed extended at both sides on disposable diaper long side direction (Y-direction), in described bond layer, many elastomeric elements are fixed between two pieces of sheets by forming the bonding agent of this bond layer under elongation state, and at the position of this elastomeric element not, two pieces of sheets directly engage by forming this bonding agent of this bond layer each other.

17. disposable diapers as claimed in claim 16, is characterized in that:

Width (directions X) at disposable diaper is upper, and described main body side bond layer forms to foreign side dividually from described outer bond layer.

18. disposable diapers as described in claim 16 or 17, is characterized in that:

Described flank sheet is used to be strengthened strengthening with bond layer,

Described lateral plate is fixed on the described outer composite sheet of extending to width (directions X) foreign side from the lateral margin of described positive dough sheet by many connecting adhesive layers continuous on long side direction,

On disposable diaper width (directions X), described main body side bond layer, described for reinforcement bond layer, described connecting adhesive layer and described outer bond layer not produce the mode in space on diaper width, overlap, for there is not the part of bond layer in described space.

19. disposable diapers as claimed in claim 14, is characterized in that:

Described flank sheet is provided with magic tape in top ends, and described flank sheet has two pieces of sheets and is fixed on the elastomeric element between these two pieces of sheets, and this flank sheet is rectangle under the state that becomes plane expansion.

20. disposable diapers as claimed in claim 19, is characterized in that:

Described flank sheet has nonwoven fabric two pieces of sheets and many elastomeric elements, and described elastomeric element is fixed between two pieces of sheets under the upper state extending of disposable diaper width (directions X),

The magic tape that is arranged at the top ends of described flank sheet is used for this flank sheet to be fixedly bonded on other position,

Described elastomeric element arranges along the width (directions X) of disposable diaper respectively,

Many described elastomeric elements of described flank sheet are in the upper arranged spaced with about equally of the long side direction (Y-direction) of disposable diaper.

21. disposable diapers as described in claim 19 or 20, is characterized in that:

The sheet that forms the outer surface side that is positioned at this flank sheet in described two pieces of sheets of described flank sheet is folding to the outer surface side of this sheet in the top ends of this flank sheet, and this folded part engages with the outer surface of this sheet with bond layer by the second reinforcement.

22. disposable diapers as claimed in claim 1, is characterized in that:

Under the state that the edge of the described foreign side end of this hydrophobicity sheet that the edge of the described interior square end portion of the described hydrophobicity sheet that described lateral plate square side in width is folded and width foreign side side are folded connects, form one.

23. disposable diapers as claimed in claim 1, is characterized in that:

The elastomeric element that described three-dimensional rivel forms use disposes 1 above below 4.

24. disposable diapers as claimed in claim 1, is characterized in that:

The elastomeric element that described shank rivel forms use disposes 1 above below 4.

25. disposable diapers as claimed in claim 1, is characterized in that:

The ratio of the length of the width at described interval and the width of described lateral plate (directions X) is more than 5% below 40%.

26. disposable diapers as claimed in claim 1, is characterized in that:

Described lateral plate, the described foreign side end of the described interior square end portion of folded hydrophobicity sheet and folded hydrophobicity sheet forms as one under the state connecting, the edge of the interior square end of this of folded hydrophobicity sheet portion in one plane aligns with the edge of this foreign side end of folded hydrophobicity sheet, thereby lateral plate forms ring-type.

27. disposable diapers as claimed in claim 1, is characterized in that:

Described lateral plate is fixed on by many connecting adhesive layers continuous on long side direction the described outer composite sheet of extending to width (directions X) foreign side from the lateral margin of described positive dough sheet,

Described in described fixed part and Duo Gen, connecting adhesive layer spreads all over roughly forming endlong of described absorbent main body,

Described connecting adhesive layer is vacated interval on width (directions X), spreading all over than described fixed part more by the leakage prevention sheet of the described outer composite sheet of width (directions X) foreign side with than leakage prevention sheet more in the region by the outer non-woven fabrics of width (directions X) foreign side, dispose 2 above below 10.

28. disposable diapers as claimed in claim 19, is characterized in that:

Described magic tape has band base material,

As described band base material, use non-woven fabrics, fabric, thin film or their lamination sheets.

29. disposable diapers as claimed in claim 1, is characterized in that:

As described positive dough sheet, use non-woven fabrics or the three-dimensional perforated film of hydrophilic and liquid permeability.

30. disposable diapers as claimed in claim 1, is characterized in that:

As described outer composite sheet, the material that leakage prevention sheet is used the resin film by opaque liquid or the difficult permeability of liquid to form.

31. disposable diapers as claimed in claim 1, is characterized in that:

As described absorber, use with the aggregation of the thin paper of water penetration or the clad sheet covering paper pulp fibres of non-woven fabrics formation or keep therein the material of the absorbent core that water-absorbent polymer particles forms.

32. disposable diapers as claimed in claim 1, is characterized in that:

As the described lateral plate that forms described three-dimensional rivel and described shank rivel, use thin film, non-woven fabrics, fabric or their lamination sheets.