CN203710246U - Disposable diaper - Google Patents

Abstract

The utility model discloses a disposable diaper (1A) which comprises a lengthwise absorbency main body (2) and a thread gluing belt (4), wherein the lengthwise absorbency main body (2) is provided with front layers (21, 24) which are located at skin opposite face sides, a leakage proof layer (22) which is located the non skin opposite face side and absorbers (23) which are located between the front layers (21) and the leakage proof layer (22); the thread gluing belt (4) is arranged at two side parts (2S) along the Y direction of the absorbency main body (2) in a way of outward extension. Under the state before the diaper (1A) is used, the thread gluing belt (4) is folded to the skin opposite face sides of the absorbency main body (2), and under an overlook state, the top end part (4a) of the thread gluing belt (4) is covered by the side parts (2S) along the Y direction of the absorbency main body (2).

Description

Disposable diaper

Technical field

This utility model relates to a kind of disposable diaper of deploying type.

Background technology

In the past, in the disposable diaper of deploying type, a pair of magic tape extending to width foreign side is installed.Generally before use, the mode that is not exposed to outside according to engaging protrusion is folded for this magic tape.In order to prevent folded like this magic tape, unexpectedly open, for example, a kind of disposable diaper is disclosed in patent documentation 1, it is included in carries out temporary fixed temporary fixed adhesive tape under folding state, a kind of disposable diaper is disclosed in patent documentation 2, configure the peel off nonwoven layer different from fastener (fastener), and folding fastener.

In addition, disclose a kind of disposable diaper in patent documentation 3, it is characterized in that, magic tape has been taken in and has been pulled out parts between top sheet and backsheet, and described magic tape top is outstanding from described side wing flap on the other hand.According to foregoing invention, when launching diaper, as long as catch magic tape top tractive, just can pull out at an easy rate magic tape.

Prior art document

Patent documentation

Patent documentation 1: TOHKEMY 2009-261823 communique

Patent documentation 2:US2008/0097368A1

Patent documentation 3: TOHKEMY 2003-275246 communique

Utility model content

But in the diaper described in patent documentation 1, temporary fixed in temporary fixed adhesive tape is that the pressing mold by embossing forms, so damage, feel declines, and causes usability to be damaged, and engaging power declines.

In addition, in the diaper described in patent documentation 2, because of the position that the layer of non-woven fabrics is peeled off in configuration, engaging power becomes too high, is difficult to open fastener, causes usability to decline.

In addition, in the diaper described in patent documentation 3, its complex structure, it is complicated that manufacturing process becomes, and when reality is used, be difficult to successfully pull out magic tape.Like this, in the disposable diaper described in patent documentation 1 to 3, from improving the viewpoint of dressing, also has further room for improvement.

Therefore, this utility model provides a kind of disposable diaper, and under its state before use, folded magic tape is difficult to unexpectedly throw off and causes top to erect or bending, and during use, dressing improves.

This utility model relates to a kind of disposable diaper, and it comprises: the absorbent main body of lengthwise, its have be disposed at skin opposite face side positive layer, be disposed at the application of anti-leakage layers of non-skin opposite face side and be disposed at this positive layer and this application of anti-leakage layers between absorber; And magic tape, it is arranged at the both sides along principal length direction of this absorbent main body.Described disposable diaper, is adhesively fixed the set portion of described magic tape on the non-skin opposite face of this absorbent main body, thereby is through with it wearer.Under the state of described disposable diaper before using, described magic tape is folded to the skin opposite face side of described absorbent main body, and when overlooking, the top ends of the body width direction of this magic tape is covered by the sidepiece along principal length direction of described absorbent main body.

Accompanying drawing explanation

Fig. 1 means the expansion plane graph of the disposable diaper of conduct the 1st embodiment of the present utility model of seeing from positive dough sheet one side.

Fig. 2 means flank sheet and near the amplification view it on the right side of the disposable diaper shown in Fig. 1.

Fig. 3 is I-I line sectional view of Fig. 1.

Fig. 4 (a) is the body width direction sectional view under the flank sheet elongation state shown in Fig. 3, and Fig. 4 (b) is the body width direction sectional view under the flank sheet contraction state shown in Fig. 3.

Fig. 5 means the flank sheet in left side of the disposable diaper shown in Fig. 1 and near amplification view thereof.

Fig. 6 means the axonometric chart of a routine manufacture method of the flank sheet in the disposable diaper of the 1st embodiment.

Fig. 7 is the body width direction sectional view (figure suitable with Fig. 3) under the flank sheet contraction state that possesses of the disposable diaper as the 2nd embodiment of the present utility model.

Fig. 8 means flank sheet and near the amplification view it (figure suitable with Fig. 5) that the disposable diaper as the 2nd embodiment shown in Fig. 7 possesses.

The specific embodiment

Below, this utility model is described with reference to accompanying drawing according to its preferred the 1st embodiment.

As shown in Figure 1, the disposable diaper 1A(of the 1st embodiment of the present utility model is following also referred to as diaper 1A) comprising: the absorbent main body 2 of lengthwise, its have be disposed at skin opposite face side positive layer, be disposed at the application of anti-leakage layers of non-skin opposite face side and be disposed at this positive layer and this application of anti-leakage layers between absorber 23; With magic tape 4, its both sides 2S, 2S along principal length direction that is arranged at absorbent main body 2 is upper, and above-mentioned disposable diaper 1A is adhesively fixed the set portion 41 of magic tape 4 on the non-skin opposite face of absorbent main body 2 and is through with it wearer.Said " positive layer " refers to one or more sheet that forms the face of relative with wearer's skin (butt) while wearing herein, and " back layer " refers to one or more sheet of the face of the opposition side of the face of formation relative with wearer's skin (butt) while wearing.Particularly, as shown in Figure 1, diaper 1A possesses: as the positive dough sheet 21 of the liquid permeability of positive layer; Lateral plate 24 across positive dough sheet 21 as positive layer; Back sheet 22 as the back layer of difficult liquid permeability; And be disposed at the absorber 23 of the liquid retentivity between positive dough sheet 21 and back sheet 22.

Herein, as shown in Figure 3, back sheet 22 is composite sheet, and it has the leakage prevention sheet 22a of non-liquid permeability or difficult liquid permeability (comprising water-repellancy) and via the bonding outer non-woven fabrics 22b that connects layer 61 and the non-skin opposite face side engagement of leakage prevention sheet 22a of skin.The plan view shape of outer non-woven fabrics 22b is identical with absorbent main body 2, and leakage prevention sheet 22a as shown in Figure 3, except the width of directions X is smaller, has the plan view shape same with outer non-woven fabrics 22b.That is, the positive layer of diaper 1A comprises: the positive dough sheet 21 of liquid permeability; Be disposed at respectively the lateral plate 24 of difficult liquid permeability of the both sides along Y-direction of positive dough sheet 21.In addition, the back layer of diaper 1A comprises: the leakage prevention sheet 22a of non-liquid permeability or difficult liquid permeability (comprising water-repellancy); With the outer bond layer 61 that is disposed at the non-skin opposite face side of leakage prevention sheet 22a.

As shown in Figure 1, the absorbent main body 2 of diaper 1A has the rectangular shape of lengthwise, and be divided into the veutro that is positioned at wearer while wearing the A of veutro portion, be positioned at wearer dorsal part drosal part B and be positioned at the crotch bottom C of crotch part.

The length direction of diaper 1A is the Y-direction spreading all over via crotch bottom C from the A of veutro portion the figure of drosal part B, is the direction identical with the principal length direction of absorbent main body 2.The width of diaper 1A is the directions X in the figure with Y-direction quadrature, is the direction identical with the body width direction of absorbent main body 2.In the following description, also by the direction corresponding with diaper length direction of the component parts of the principal length direction of diaper or this diaper referred to as Y-direction, by the direction corresponding with diaper width of the component parts of the body width direction of diaper or this diaper referred to as directions X.In addition, skin opposite face (inner face) in the component parts of diaper and diaper be when wearing towards the one side of wearer's skin side, the non-skin opposite face (outside) in the component parts of diaper and diaper is towards the one side of the contrary side of the skin with wearer when wearing.

As absorbent main body 2 is set forth in more detail, as shown in figures 1 and 3, absorbent main body 2 has: the positive dough sheet 21 of liquid permeability; The back sheet 22 of non-liquid permeability or difficult liquid permeability (comprising water-repellancy); Be arranged at the absorber 23 of the liquid retainability between these two sheets 21,22.Positive dough sheet 21 and back sheet 22 are as shown in Figure 1, cover respectively the whole surface of skin abutment face and the whole surface of non-skin abutment face of absorber 23, and extend out from the surrounding edge of absorber 23, in the part extending out, by the bonding agents such as hot melt or hot melt, heat bondings such as (seal, sealings) and be fixed.Positive dough sheet 21 is upper in principal length direction (Y-direction), identical with the length of back sheet 22, but upper in body width direction (directions X), as shown in Figure 3, forms shortlyer than back sheet 22.Back sheet 22 forms plan view shape and equates with absorbent main body 2.

In addition, the sidepiece 2S along Y-direction in absorbent main body 2 disposes lateral plate 24 across positive dough sheet 21.As shown in figures 1 and 3, lateral plate 24 is skin abutment face sides of positive dough sheet 21, and by the fixed part 27 extending to principal length direction (Y-direction), spreads all over along the whole region of the sidepiece 2S of Y-direction and is configured to fix.Fixed part 27 is by utilizing various well-known method adhesive-applyings on the inner face (P side in Fig. 3) at positive dough sheet 21, or utilize various well-known methods mutually to implement hot melt processing and form, and being configured to spread all over the total length of absorbent main body 2.For lateral plate 24, the interior side's of directions X (the diaper centre line C L of extending by principal length direction) end is free end, the part of the lateral plate 24 more extending out to the foreign side of directions X (body width direction) than fixed part 27 engages with back sheet 22, at the sidepiece 2S along Y-direction of absorbent main body 2, forms wing flap portion.

As shown in Figure 3, lateral plate 24 at least consists of the sheet of a difficult liquid permeability, and this sheet is just folded and forms double-deck in main body.In other words, both sides 24I, the 24O of the principal length direction along above-mentioned are folded and form double-deck to the non-skin opposite face side of this sheet.This folded position is preferably formed as folding in the form of a ring arc.Particularly, the sidepiece 24I of square side in directions X (CL of the diaper Central Line side of extending to principal length direction) by the non-skin opposite face side (outer face side) (Q side in Fig. 3) to sheet until the position of fixed part 27, near folding top between the folded sheet in the C of crotch bottom, configuration is fixed with the elastomeric element 25 that forms use at many three-dimensional gauffers of the upper elongation state of principal length direction (Y-direction).In addition, the end 24O in the outside of directions X (body width direction) is folding until the position of fixed part 27 by the non-skin opposite face side (exterior side) to sheet (Q side in Fig. 3), near folding top between the folded sheet in the C of crotch bottom, configuration is fixed with the elastomeric element 26 that forms use in many leg creases of the upper elongation state of principal length direction (Y-direction).In addition, for lateral plate 24, in region the region that the elastomeric element 26 of the region configuring at the elastomeric element 25 that forms use except three-dimensional gauffer and leg creases formation use configures, a plurality of heat bonding portions (not shown) that are interrupted configuration between folded sheet engage and formation one.Heat bonding portion (not shown) is such as can adopting the combination etc. of these methods that hot melt, ultrasound wave is melting, high frequency is melting or these are two or more and forming.

For the lateral plate 24 according to forming with upper type, when wearing, in the C of crotch bottom, utilize three-dimensional gauffer to form the contractility of the elastomeric element 25 of use, than the fixed part of lateral plate 24 27, more by a side of side in body width direction, become three-dimensional gauffer.Particularly, in the C of crotch bottom, than the folding top of square side in the more close directions X of the fixed part of lateral plate 24 27, from positive dough sheet 21, form dividually three-dimensional gauffer.Meanwhile, utilize leg creases to form the contractility of the elastomeric element 26 of use, than the outside of the more close directions X of the fixed part of lateral plate 24 27 (body width direction), become leg creases.

As shown in Figure 1, the diaper 1A of the 1st embodiment of the present utility model possesses the flank sheet 3,3 of retractility of both sides 2S, the 2S along Y-direction of absorbent main body of being arranged on 2.Like this, diaper 1A is the disposable diaper of so-called deploying type that is provided with the flank sheet 3,3 of retractility, and flank sheet 3 can be also the flank sheet that there is no retractility.Flank sheet 3,3 is installed as both sides 2S, the 2S of the absorbent main body from drosal part B 2 respectively and gives prominence to the foreign side of directions X (body width direction).

As shown in Figure 3, the flank sheet 3 of diaper 1A has two sheets 31,32 and is fixed on the elastomeric element 33 extending to body width direction (directions X) between two sheets 31,32, and elastomeric element 33 is fixed between two sheets 31,32 under elongation state.That is, flank sheet 3 is to form by the fixing elastomeric element 33 along directions X elongation state between two sheets 31,32.As shown in Figure 2, in the diaper 1A of the 1st embodiment, the magic tape 4 with set portion 41 extends ground setting from the top ends 3a of flank sheet 3 to the foreign side of directions X (body width direction).Below describe particularly.Flank sheet 3, in diaper 1A, as shown in Figure 2, is rectangle under the state that becomes plane expansion.In addition, as Fig. 4 (a) with (b), flank sheet 3 is between two sheets 31,32 of the rectangle manufactured at non-woven fabrics, fixing many elastomeric elements 33 of configuration under the state extending along directions X and forming.The elastomeric element 33 of elongation state is vacated compartment of terrain configuration about equally in the Y direction.Below describe particularly.

Flank sheet 3 in diaper 1A has the bond layer of two sheets 31,32, elastomeric element 33 and secures resilient member 33, is with above-mentioned bond layer, the elastomeric element of elongation state 33 to be fixed between two sheets 31,32 and to form.Particularly, as Fig. 4 (a) with (b), flank sheet 3 has: two sheets 31,32; Elastomeric element 33; By the fixing main body side bond layer 35 of the end side of the absorbent main body of this elastomeric element 33 2 sides; By the fixing tip side bond layer 36 of the end side of the top ends 3a side of the flank sheet 3 of this elastomeric element 33; And be disposed between this main body side bond layer 35 and this tip side bond layer 36 and fix the middle fixed part 37 of two sheets 31,32.Herein, the top ends 3a of flank sheet 3 refers to flank sheet 3 and the end contrary side of absorbent main body 2 sides.As shown in Figure 4 (a), flank sheet 3 is with main body side bond layer 35 and tip side bond layer 36, the elastomeric element of elongation state 33 to be fixed between two sheets 31,32 and to form.Below more specifically describe.

In diaper 1A, middle fixed part 37 is bond layers.Main body side bond layer 35, tip side bond layer 36 and middle fixed part 37 are all formed extended at both sides to Y-direction.The region of middle fixed part 37 between main body side bond layer 35 and tip side bond layer 36 is to be provided with many in zone line 30.The width of middle fixed part 37 is all less than above-mentioned two bond layers 35,36, in zone line 30, on directions X, is formed with discontinuously many.In main body side bond layer 35, tip side bond layer 36 and middle fixed part 37, as shown in Figure 4 (a), many elastomeric elements 33 are by forming the bonding agent of each bond layer 35,36,37, with elongation state, be fixed between two sheets 31,32, and at the position that elastomeric element 33 is not set, two sheets 31,32 directly engage by forming the bonding agent of each bond layer 35,36,37 each other.And, as shown in Figure 4 (a), on the bearing of trend of flank sheet 3, between main body side bond layer 35 and the middle fixed part 37 that is adjacent, the middle fixed part 37 of adjacency is each other and between tip side bond layer 36 and the middle fixed part 37 that is adjacent, is formed with respectively the non-bonding region 38 that does not dispose bonding agent.In the diaper 1A of the 1st embodiment, the bearing of trend of flank sheet 3 is consistent with diaper directions X.

Main body side bond layer 35, tip side bond layer 36 and middle fixed part 37 all intersect with many whole (the more preferably more than 3) elastomeric elements 33 that extend on directions X, spread all over the extending in Y-direction endlong of Y-direction of flank sheet 3.

Non-bonding region 38 intersects with many whole (the more preferably more than 3) elastomeric elements 33 that extend on directions X similarly, spreads all over the extension in the Y direction endlong of the Y-direction of flank sheet 3.

For flank sheet 3, in diaper 1A, as shown in Figure 4 (a), many elastomeric elements 33 under the state extending on directions X, in main body side bond layer 35, tip side bond layer 36 and middle fixed part 37, are fixed between two sheets 31,32 of the rectangle that non-woven fabrics makes and form.

In the flank sheet 3 of the diaper 1A forming in the mode according to above, as shown in Figure 4 (b), under naturalness, utilize the contractility of elastomeric element 33, form the gauffer region GT that a plurality of pleats by the direction extension to intersecting with elastomeric element 33 form.As described particularly, in the flank sheet 3 of the diaper 1A forming in the mode according to above, elastomeric element 33 is fixed in main body side bond layer 35, tip side bond layer 36 and middle fixed part 37 under elongation state, under the naturalness of shrinking at this elastomeric element 33, as shown in Figure 4 (b), on the main body side bond layer 35 of flank sheet 3 and the two sides between tip side bond layer 36, form a plurality of pleats.Each pleat is formed extended at both sides to Y-direction in the mode of intersecting with many elastomeric elements 33.As shown in Figure 4 (b), for the pleat being formed on flank sheet 3, in zone line 30, utilize the contraction of elastomeric element 33, two sheets 31,32 become convex bulging to the direction of separating from elastomeric element 33 in each non-bonding region 38, on the other hand in each zone line 37, towards 33 one-tenth concavities of elastomeric element form, there is concaveconvex shape.This pleat can not disappear completely under the wearing effect of diaper yet.

The top ends 3a of the flank sheet 3 having at diaper 1A as mentioned above, is provided with magic tape 4.As magic tape 4 is explained in detail, magic tape 4 has with substrate sheets 42 and in the skin abutment face side of the directions X with substrate sheets 42 (body width direction), has the set portion 41 of a plurality of engaging protrusion.The magic tape 4 of diaper 1A as shown in Figure 2, is rectangle long on directions X under deployed condition.Magic tape 4 be by the outside forming the directions X with substrate sheets 42 of the shape equating with the plan view shape of magic tape 4 (body width direction) fixedly set portion 41 form.Herein, the top ends 4a of magic tape 4 refers to, is launching the state of magic tape 4 from flank sheet 3, magic tape 4 and the end contrary side of absorbent main body 2 sides.Particularly, in diaper 1A, set portion 41 as shown in Figure 2, is disposed at than the position in more close described later the melting of the top ends 4a of magic tape 4 (seal, sealing) region 60.In addition, at the non-skin opposite face (outer surface) of the A of veutro portion of diaper 1A, be provided with make that the set portion 41 of magic tape 4 is adhesively fixed taking sheet 5.

As being fixedly explained in detail magic tape 4 and flank sheet 3, magic tape 4 is by by a plurality of (seal that melting, sealing) portion 6 forms is melting the sidepiece 2S along principal length direction that absorbent main body 2 is fixed in region 60, and in diaper 1A, as shown in Figure 3, by melting region 60, be fixed on the top ends 3a of flank sheet 3.Particularly, as shown in Figure 3, the interior side of the directions X of magic tape 4 (by the diaper centre line C L of extending along principal length direction) side, is installed on the non-skin opposite face (face of Q side in Fig. 3) of sheet 32 of the non-skin opposite face in the top ends 3a that forms flank sheet 3.If be specifically described melting region 60, in diaper 1A, as shown in Figure 3, melting that portion 6 by hot melt or ultrasound wave is melting and forms.In addition, melting region 60 refers to around a plurality ofly melting the whole region of group that portion 6 forms by what form in the manner described above.

More specifically, as shown in Figure 2, melting portion 6 and be by using hot melt or ultrasound wave is melting, by forming with substrate sheets 42 and sheet 31,32 hot melts that form retractility flank sheet 3 of magic tape 4.The shape that is melting portion 6 has no particular limits, except the ellipse of the such lengthwise of diaper 1A, such as being also the shape arbitrarily such as circle, rhombus, triangle, polygon.Never destroy the viewpoint that wearing feeling improves adhesive strength simultaneously, one melting portion 6 melting the preferred 2mm of pattern area ²above 30mm ²below, more preferably 2mm ²above 20mm ²below.In addition, the viewpoint based on same, the configuration number that is melting portion 6 is 1/cm preferably ²above 16/cm ²below, more preferably 2/cm ²above 10/cm ²below.

In addition,, in diaper 1A, as shown in Figure 3, magic tape 4 utilizes and engages with the top ends 3a of flank sheet 3 with connecting adhesive layer 63.Band connecting adhesive layer 63 is on directions X, unanimous on the whole with the width that is melting region 60, and spreads all over the formation continuously endlong of the Y-direction of magic tape 4.

Below, describe in detail the flank sheet 3 that is provided with magic tape 4 is arranged on to the situation on the sidepiece 2S of absorbent main body 2.

As mentioned above, diaper 1A as shown in Figure 1, in drosal part B, disposes respectively the flank sheet 3,3 of retractility at the both sides of absorbent main body 2 2S, 2S.In addition, the end of flank sheet 3 its absorbent main body 2 sides is fixed between positive layer and application of anti-leakage layers, particularly as shown in Figure 3, by lateral plate 24 and back sheet 22, is clipped and is fixed in absorbent main body 2.In addition, as mentioned above, in diaper 1A, as shown in Figure 1, lateral plate 24, on the inner face (P side in Fig. 3) of the sidepiece of the positive dough sheet 21 of absorbent main body 2, by spreading all over the fixed part 27 of configuration endlong of absorbent main body 2, spread all over being configured endlong of absorbent main body 2.Diaper 1A, in the region that disposes flank sheet 3 in drosal part B, as shown in Figure 3, lateral plate 24 is fixed on the sheet 31 that forms flank sheet 3 by face side bond layer 64, and by fixed part 27, be fixed on positive dough sheet 21, by bonding agent continuous in principal length direction (connecting adhesive layer 62), be fixed on the back sheet 22 extending to the foreign side of directions X (body width direction) from the sidepiece of this positive dough sheet 21.Face side bond layer 64 as shown in Figure 3, be disposed at than by the folding interior square side (the upwardly extending diaper CL of the Central Line side in principal length side) of the more close directions X of lateral part 24S that forms the directions X along Y-direction (body width direction) of double-deck lateral plate 24, be only formed at the part that disposes flank sheet 3.

The disposable diaper of the flank sheet 3 that like this, diaper 1A is the both sides 2S along principal length direction in absorbent main body 2,2S is fixed with retractility.As mentioned above, the flank sheet 3 of diaper 1A is engaged between positive layer and application of anti-leakage layers, but also can be engaged in application of anti-leakage layers non-skin opposite face side, be the non-skin opposite face side of back sheet 3.The former in the situation that have advantages of in skin abutment face side, by a lateral plate 24, formed and difference of height few, have the following advantages in the latter case: because engaging with rear side, even if therefore increasing bonding agent also can prevent from, to face side infiltration, being easy to obtain the stable adhesive strength of flank sheet 3 in absorbent main body 2.

In diaper 1A, in region, crotch bottom C and the A of veutro portion except disposing the region of flank sheet 3 in drosal part B, as shown in Figure 1, lateral plate 24 is fixed on positive dough sheet 21 by fixed part 27, than the region in the outside of the more close directions X of the fixed part of lateral plate 24 27 (body width direction), by bonding agent continuous in principal length direction (connecting adhesive layer 62), is fixedly formed on back sheet 22.Fixed part 27 be connected bond layer 62 and spread all over probably forming endlong of absorbent main body 2.

In addition, diaper 1A, in two ends of the Y-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 3, lateral plate 24 is fixed on positive dough sheet 21 by 65 layers of bonding agents.As shown in Figure 3, bond layer 65 is arranged at than square side in the more close directions X of fixed part 27 (the upwardly extending diaper CL of the Central Line side in principal length side), and is arranged in a part of the A of veutro portion and drosal part B, but is not arranged at crotch bottom C.

Under diaper state before use, the magic tape of disposable diaper of the present utility model is folding by the skin abutment face side to absorbent main body, and when the top ends of magic tape is overlooked, the sidepiece along principal length direction (Y-direction) of absorbability main body covers.Diaper 1A about the 1st embodiment, under diaper 1A state before use, magic tape 4 is if the ratio of Fig. 1 is the magic tape 4 in the more close left side of CL, upwardly extending diaper Central Line, principal length side, skin opposite face side (inner face side) (P side in Fig. 3) to flank sheet 3 is folding, and as shown in Figure 5, the top ends 4a of magic tape 4 is covered by the sidepiece along principal length direction (Y-direction) of positive layer.In use, as Fig. 1 than the magic tape on the more close right side of Central Line CL 4 and Fig. 2, after magic tape 4 is launched, use.More specifically, under diaper 1A state before use, as shown in Figure 3 and Figure 5, magic tape 4 is folded at the broken line FL place of top ends 3a that is positioned at flank sheet 3, and the lateral part 24S that the top ends 4a of magic tape 4 is used as shown in Figure 5 by the directions X along Y-direction (body width direction) of the folding lateral plate 24 that forms double-deck positive layer covers.Double-deck lateral plate being folded has resiliency, and as shown in Figure 5, the top ends 4a of magic tape 4 is covered by the lateral part 24S than the on-fixed state in the outside of the more close directions X of face side bond layer 64 (body width direction) in lateral plate 24.Like this, under diaper 1A state before use, the absorbent main body sidepiece that covers the top ends of magic tape 4 refers to the lateral part 24S of the directions X along Y-direction (body width direction) that forms double-deck lateral plate 24.In addition, as shown in Figure 3 and Figure 5, broken line FL is positioned at the apical position of the top ends 3a of flank sheet 3 in diaper 1A.

As mentioned above, under diaper 1A state before use, as shown in Figure 5, magic tape 4 folds into the skin opposite face side (P side in Fig. 3) of flank sheet 3, as shown in Figure 3, folding magic tape 4 engages at the pleat of at least a portion of set portion 41 and the gauffer region GT of flank sheet 3.

As shown in Figure 3 and Figure 5, from the fixing viewpoint of the stable folding position of magic tape 4, set portion 41 and make the area (S2) of overlapping region T of gauffer region GT under naturalness that flank sheet shrinks and the ratio (S2/S1) of the whole area (S1) of set portion (41) preferably more than 1/2, more preferably more than 2/3.In addition, the whole area (S1) of set portion 41 refers to the area while overlooking set portion 41, and the area (S2) of overlapping region T refers to that the overlapping region T(that overlooks the gauffer region GT under set portion 41 and the naturalness that flank sheet is shunk is with reference to Fig. 3) time area.

Under diaper 1A state before use, for the magic tape 4 that is folded to the skin opposite face side (P side in Fig. 3) of flank sheet 3, as shown in Figure 5, the top ends 4a of the body width direction (directions X) of magic tape 4 by adhesive-applying or hot melt, ultrasound wave is melting, the sidepiece 2S along principal length direction of any one method in pressure welding and absorbent main body 2 is temporary fixed, particularly temporary fixed with the flank sheet 3 of sidepiece 2S.In detail, it is temporary fixed that the magic tape 4 of diaper 1A is formed on the some embossing 43 of set portion 41 as shown in Figure 5.Herein, some embossing 43 is by not heating but apply at normal temperatures embossing processing and form.More specifically, point embossing 43 is, (P in Fig. 3) of the non-skin opposite face side (Q side in Fig. 3) by the lateral part 24S at lateral plate and folding magic tape 4 stresses to implement under folded state embossing processing, and the recess of the embossing simultaneously forming on the lateral part 24S of lateral plate 24 and magic tape 4.The point embossing 43 forming like this, the protuberance of the lateral part 24S of lateral plate 24 and the recess of magic tape 4 are chimeric, become temporary fixed state, can prevent that magic tape 4 from unexpectedly launching, and diaper 1A in use, can from flank sheet 3, launch magic tape 4 no problemly.

Under disposable diaper 1A state before use, above-mentioned magic tape 4 is folded at the broken line FL place of top ends 3a of body width direction that is positioned at flank sheet 3, easily obtains thus to take the stable collapsed shape that main body top is basic point, and is difficult to dislocation.

As shown in Figure 5, some embossing 43 is formed in the region of lap of the top ends 4a of magic tape 4 and the lateral part 24S of lateral plate 24, and be formed at not with by lateral plate 24 and the overlapping position of the bonding face side bond layer 64 of flank sheet 3.The shape of some embossing 43 has no particular limits, except the such circle of diaper 1A, such as being also the shape arbitrarily such as ellipse, rhombus, triangle, polygon.The viewpoint that engages power from raising magic tape 4 with the skin opposite face of flank sheet 3, the preferred 1mm of pattern area of some embossing 43 ²above 25mm ²below, more preferably 1mm ²above 5mm ²below.In addition, the viewpoint based on same, the configuration number of some embossing 43 preferably 1 above below 10, more preferably 2 above below 5, in diaper 1A, be formed with two.

The disposable diaper 1A of the 1st embodiment is being through to wearer with it time, with hands traction point embossing 43 with by the temporary fixed magic tape 4 of some embossing 43, under the state that flank sheet 3 is extended, the set portion 41 of this magic tape 4 is pressed in taking on sheet 5 and adheres and fix.

Constituent material to diaper 1A describes.

As the positive dough sheet 21, back sheet 22, the absorber 23 that form absorbent main body 2, can use over respectively the sheet that uses etc. in the absorbent commodities such as disposable diaper, physiological napkin, not special restriction.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 back sheet 22, its leakage prevention sheet 22a can be used the resin film of non-liquid permeability or difficult liquid permeability (comprising water-repellancy), its outer non-woven fabrics 22b can be used the material for example, consisting of the non-woven fabrics (, hot-wind nonwoven cloth, spun-bonded non-woven fabrics, spun-laced nonwoven fabric, needle punched non-woven fabrics etc.) that adopts the whole bag of tricks to make.In addition, as absorber 23, can use the fiber assemblies (can be also non-woven fabrics) such as the coated paper pulp fiber of clad sheet that thin paper or non-woven fabrics by water penetration form or the materials such as absorbent core that keep therein water-absorbent polymer particles to form.Lateral plate 24 as forming three-dimensional gauffer and leg creases, can be used thin film, non-woven fabrics, fabric or their lamination sheets etc.

As the sheet 31,32 that forms flank sheet 3, can use over various that in the absorbent commodities such as disposable diaper, physiological napkin, use, not special restriction.For example, as sheet 31,32, can use non-woven fabrics, fabric, thin film or their lamination sheets etc.

As elastomeric element 33, three-dimensional gauffer, form the elastomeric element 25 of use, the elastomeric element 26 that leg creases 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.Be disposed at many elastomeric elements 33 on a flank sheet, from viewpoints such as manufacturing cost and simplification manufacturing processes, preferably identical type material is with identical percentage elongation setting.

Form set portion 41 and the band substrate sheets 42 of magic tape 4, conventionally so long as just can use for the material of the absorbent commodities such as disposable diaper, do not limit especially.For example, as set portion 41, can use hook face component in " Magictape(nylon bracelet) (registered trade mark) " (production of KURARAY company), " Quicklon(registered trade mark) " (production of YKK company), " Magicloth(registered trade mark) " (production of Kanebo Bell-Touch company) etc. etc.As band substrate sheets 42, can use sheet that the composite by the synthetic resin such as polyethylene, polypropylene, polyethylene terephthalate and two or more these synthetic resin forms or non-woven fabrics etc.

To form the fixedly outer bond layer 61 of leakage prevention sheet 22a and outer non-woven fabrics 22b, or the fixing sheet 31 that forms flank sheet 3, the bonding agent of 32 main body side bond layer 35 is main, be used for fixing the preferred material of the bonding agent between each parts, can enumerate: 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), the thermoplastic polymers such as styrene-ethylene/propylene-styrene block copolymer (SEPS) and their mixture etc.The preferred heat molten type of bonding agent.

Main body side bond layer 35, tip side bond layer 36, middle fixed part 37, outer bond layer 61, connecting adhesive layer 62, band connecting adhesive layer 63, face side bond layer 64 and bond layer 65, can apply after above-mentioned bonding agent by utilizing on any one or two of various well-known methods in clipping their two sheets, these two sheets are overlapped and 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 rifle 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.

The flank sheet 3 that disposable diaper 1A possesses, lateral plate 24, its manufacture method, can be according to method manufacture arbitrarily without any restriction.

Below, the preferred example of the manufacture method of the flank sheet 3 of the retractility in disposable diaper 1A 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 (endless belt) 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 76, the ground continuously coating that becomes band respectively on the banded sheet 31 ' of the original fabrics as sheet 31 is used for forming the bonding agent 34 of main body side bond layer 35, tip side bond layer 36 and middle fixed part 37.In addition, bonding agent 34 also can be coated on banded sheet 32 ' continuously.

Then, 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.

Can use the continuum (telescopic sheet 3 ') of above-mentioned flank sheet 3, for example, according to mode shown below, manufacture diaper 1A.

Particularly, for example, can use the continuum (telescopic sheet 3 ') of above-mentioned flank sheet 3, according to the step of following (1)～(10), effectively manufacture diaper 1A.(1) by having applied, be used for forming the continuous screen cloth with the bonding agent of connecting adhesive layer 63 on the continuous screen cloth of magic tape 4 with set portion 41, cut into successively the length of each magic tape 4, and be arranged on discontinuously on the telescopic sheet 3 ' obtaining in the manner described above.(2) use folding guide part (folding guide) etc. in the folding part that comprises the set portion 41 in magic tape 4 in position arbitrarily, it is engaged with the gauffer region GT of stretchable sheet 3 ' with set portion 41.(3), after the bonding agent that is used for forming face side bond layer 64 being coated in continuously in the face side of the sidepiece that there is no set portion 41 1 sides in stretchable sheet 3 ', cut into successively the length of each flank sheet 3.(4) in order to obtain lateral plate 24, two sidepieces of folding serialgram in other operation.With bonding agent, elastomeric element 25 is fixed under elongation state to folded a folding top, with bonding agent, elastomeric element 26 is fixed under elongation state to another folding top.Then, by hot melt, the method such as, in the region the region that the region configuring except elastomeric element 25 and elastomeric element 26 configure, heat bonding portion is set and carries out integrated.(5) form positive dough sheet continuum, it is the fixed part 27 forming by utilizing hot melt etc., also partly by bond layer 65, makes in other operation resulting lateral plate 24 integrated and form with positive dough sheet 21.(6) with the lateral part 24S in the outside with lateral plate 24, cover the mode of the top ends 4a of folding magic tape 4, the flank sheet 3 that magic tape 4 is installed is fixed on positive dough sheet continuum by face side bond layer 64.(7), in other operation, by outer bond layer 61, make leakage prevention sheet 22a and outer non-woven fabrics 22b form one and form back sheet 22.(8) (main body the connects use) bonding agent that is used for forming connecting adhesive layer 62 is coated in to the sidepiece in the outside in back sheet 22 continuously.(9) be provided with between the positive dough sheet continuum and back sheet 22 of flank sheet 3, along flowing to, configuring discontinuously absorber 23, by connecting adhesive layer 62, fixing positive dough sheet continuum and back sheet 22 and make it integrated, forming the continuum of diaper 1A.(10) continuum of diaper 1A is cut into a product, manufacture continuously diaper 1A.

The manufacture method of disposable diaper 1A, except using resulting flank sheet 3 in the manner described above, manufactures beyond disposable diaper by the operation of above-mentioned (2) and (6), and all the other all can manufacture disposable diaper according to existing well-known method.

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

Under diaper 1A state before use, as shown in Figure 3 and Figure 5, magic tape 4 is folding by the skin opposite face side to absorbent main body 2, and the sidepiece 2S along principal length direction of the top ends 4a of magic tape 4 absorbability main body 2 when overlooking covers.Therefore, before using, folded magic tape 4 is difficult to unexpectedly throw off and top 4a erects or crooked, and during use, dressing improves.Particularly the magic tape 4 of diaper 1A is folding to the skin opposite face side (inner face side) (P side in Fig. 3) of flank sheet 3, and the lateral part 24S that the top ends 4a of this magic tape 4 is used as the directions X along Y-direction (body width direction) of the lateral plate 24 of positive layer covers.The magic tape 4 of diaper 1A has set portion 41, in the position of the boundary with set portion 41 because poor rigidity magic tape 4 when applying external force is easily crooked, but as mentioned above, the top ends 4a that holds flexible magic tape 4 is covered by the lateral part 24S of lateral plate 24, also can be not crooked even if therefore apply external force.Therefore, when wearing, the top ends 4a of magic tape 4 can encounter wearer's skin hardly, and dressing improves.In addition, in diaper 1A, under state before use, the top ends 4a of magic tape 4 is only covered by the lateral part 24S of the on-fixed state in the outside of the directions X in lateral plate 24 (body width direction), so when wearing, easily launch magic tape 4.

In addition, as shown in Figure 3 and Figure 5, under state before use, the magic tape 4 of diaper 1A is folded at the broken line FL place on top of top ends 3a that is positioned at flank sheet 3, so easily to skin opposite face side (inner face side) (P side in Fig. 3) bending of flank sheet 3.Therefore, the top ends 4a of magic tape 4 is easily covered by the lateral part 24S of lateral plate 24.

In addition, before use, the top ends 4a of the magic tape 4 of diaper 1A is passed lateral part 24S folding and that form the directions X (body width direction) of double-deck lateral plate 24 and covers.Therefore, can be further not crooked even if apply external force yet, dressing further improves.

In addition, the flank sheet 3 of diaper 1A is flank sheets of retractility, if so catch when wearing near the top ends 3a of flank sheet 3 to directions X (body width direction) tractive, the top ends of magic tape 4 is exposed to foreign side naturally from the lateral part 24S of lateral plate 24, has the effect of easy expansion.In addition, folded under the set portion 41 of the magic tape 4 of diaper 1A state before use, engage with the pleat of the gauffer region GT of flank sheet 3.Therefore, before use, the collapsed shape of magic tape 4 is stablized and is difficult to erect and bending, when wearing, if catch the top ends 3a of flank sheet 3 neighbouring to directions X (body width direction) tractive, pleat extends to directions X (body width direction), so the set portion 41 of magic tape 4 easily throws off naturally from pleat, easily launches.

In addition, as shown in Figure 5, before use, the some embossing 43 that the magic tape 4 of diaper 1A is formed on set portion 41 is temporarily fixed on flank sheet 3.Therefore, the top ends 4a of the magic tape 4 being covered by the lateral part 24S of lateral plate 24 is difficult to unexpectedly roll, and dressing further improves.Particularly, the magic tape 4 of diaper 1A is formed at not overlapping with the elastomeric element 33 that forms flank sheet 3 position of an embossing 43.Therefore, having the elastomeric element 33 being difficult to because of offside fin 3 brings damage to cause the effect of contractility decline.The top ends 4a of the magic tape 4 covering from the lateral part 24S by lateral plate 24 is difficult to unexpectedly roll, the viewpoint that dressing further improves, when the top ends 4a of magic tape 4 is covered by the sidepiece of lateral plate, also can be at the inner face of magic tape top ends and lateral plate sidepiece, by adhesive-applying or hot melt, the method such as ultrasound wave is melting, pressure welding (comprising an embossing) carries out temporary fixed.Temporary fixed with above-mentioned content is the identical meaning, refers to when catching with hands and easily peels off, and it is weak fixing that now component parts can damaged degree.

Then, the diaper of the 2nd embodiment of disposable diaper of the present utility model is described.The disposable diaper 1B of the 2nd embodiment, the position of the broken line FL of folding magic tape 4 is different from the diaper 1A of the 1st embodiment.For the diaper 1B of the 2nd embodiment, mainly the difference of the diaper 1A with the 1st embodiment is described, for something in common, also the description thereof will be omitted to mark identical symbol.For not mentioning especially part, the suitably explanation of the diaper 1A of relevant the 1st embodiment of application.

Diaper 1B and diaper 1A are same, and as shown in Figure 7 and Figure 8, magic tape 4 is by melting by a plurality of the top ends 3a that flank sheet 3 is fixed in region 60 that melting that portion 6 forms.In addition, diaper 1B and diaper 1A are same, as shown in Figure 7 and Figure 8, magic tape 4 by with melting consistent the engaging with the top ends 3a of flank sheet 3 with connecting adhesive layer 63 in region 60.

For diaper 1B, under the state before diaper 1B is used, as shown in Figure 7 and Figure 8, to melt the broken line FL place in region 60 folded being positioned at for magic tape 4, and the broken line FL being formed in this region easily stably forms folding line, uses front magic tape 4 to be difficult to unexpectedly erect.The top ends 4a of magic tape 4 is used as by folding the lateral part 24S of the directions X along Y-direction (body width direction) of the lateral plate 24 that forms double-deck positive layer and covers.As shown in Figure 7 and Figure 8, the top ends 4a of magic tape 4 is by more covering to the lateral part 24S of the on-fixed state in the outside of directions X (body width direction) than face side bond layer 64 in lateral plate 24.In addition, being positioned at the broken line FL that is melting region 60 refers to that broken line FL is disposed at and is melting region 60.

In diaper 1B, as shown in Figure 8, the some embossing 43 of the sidepiece 2S of the top ends 4a of temporary fixed magic tape 4 and absorbent main body 2 is formed in the region of set portion 41, and is formed at not overlapping with the elastomeric element 33 that forms flank sheet 3 position.Therefore, before use, the collapsed shape of magic tape 4 is stablized and is difficult to erect or bending, when wearing, if catch the top ends 3a of flank sheet 3 neighbouring to directions X (body width direction) tractive, pleat extends to directions X (body width direction), so some embossing 43 is peeled off, the set portion 41 of magic tape 4 throws off from pleat naturally, the effect that performance easily launches.In addition, now, because an embossing 43 is formed at not overlapping with the elastomeric element 33 that forms flank sheet 3 position, so do not affect the retractility of flank sheet.

Diaper 1B, in the step of described (2) in the manufacture method of above-mentioned diaper 1A, except use folding guide part etc. by the part that comprises the set portion 41 in magic tape 4 melting 60Nei position, region folding, can similarly manufacture with diaper 1A.

Action effect when using above-mentioned diaper 1B describes.

For the effect of diaper 1B, the difference of the effect with diaper 1A is described.Do not specify that part is identical with the effect of diaper 1A, the explanation of suitably applying the effect of diaper 1A.

Under the state of diaper 1B before using, as shown in Figure 7 and Figure 8, to melt the broken line FL place in region 60 folded being positioned at for the magic tape 4 of diaper 1B.Like this, due to folded at the broken line FL place magic tape 4 melting in region 60 that is formed at other positions enhancings of strength ratio by melting, so easily leave folding line on folded magic tape 4, crease is stable.

Disposable diaper of the present utility model is not limited to the diaper 1A～1B of above-mentioned the 1st～2nd embodiment completely, can suitably change.In addition, each structure condition in the diaper 1A～1B of above-mentioned the 1st～2nd embodiment, in not destroying the scope of aim of the present utility model, can appropriately combined rear enforcement.

For example, in the diaper 1A～1B of above-mentioned the 1st～2nd embodiment, under state before use as shown in Figure 3 and Figure 7, the lateral part 24S that the top ends 4a of magic tape 4 is used as by the directions X (body width direction) of the folding lateral plate 24 that forms double-deck positive layer covers, but the sidepiece in outside that also can be used as the directions X (body width direction) of the positive dough sheet 21 of positive layer covers.In the situation that covered by the sidepiece of positive dough sheet 21, positive dough sheet 21 is extended until the position of the lateral part 24S of lateral plate 24, with the top ends 4a of the covering of the sidepiece than the on-fixed state in the outside of the more close directions X of face side bond layer 64 (body width direction) magic tape 4 in positive dough sheet 21 to the foreign side of directions X (body width direction).

In addition, in the diaper 1A～1B of above-mentioned the 1st～2nd embodiment, as shown in Figure 1, in principal length direction, both sides 2S, the 2S of the absorbent main body 2 of long rectangle are equipped with flank sheet 3,3, from the top ends 3a of flank sheet 3, to the foreign side of directions X, extend and be provided with magic tape 4, but can there is no flank sheet 3 yet, and at both sides 2S, the 2S of the drosal part B of the absorbent main body 2 of hourglass shape, magic tape 4,4 is directly installed.While magic tape 4 being installed in the absorbent main body 2 in this shape, both can be fixed between positive layer and application of anti-leakage layers, also can be fixed on the non-skin opposite face side of application of anti-leakage layers.In the situation that being fixed between positive layer and application of anti-leakage layers, under the state of diaper before using, when the top ends 4a of folded magic tape 4 also can overlook, the sidepiece 2S of absorbability main body 2 covers, and particularly by the sidepiece of the lateral plate 24 of the sidepiece of positive dough sheet 21 or bilayer, is covered.In addition, in the situation that be fixed on the non-skin opposite face side as the outer non-woven fabrics 22b of the back sheet 3 of application of anti-leakage layers, under the state of diaper before using, the top ends 4a of folded magic tape 4 also can cover by the sidepiece 2S of absorbability main body 2 when overlooking, and particularly by the sidepiece of positive dough sheet 21, double-deck sidepiece of lateral plate 24 or the sidepiece of back sheet 3, is covered.In addition, in the situation that magic tape 4 is fixed on the outer non-woven fabrics 22b of the back sheet 3 of application of anti-leakage layers, also can be fixed in the skin opposite face side of the outer non-woven fabrics 22b extending than the leakage prevention sheet 22aGeng Xiang directions X foreign side of back sheet 3.

In addition, in the diaper 1A～1B of above-mentioned the 1st～2nd embodiment, as shown in Fig. 3, Fig. 7, flank chip bonding between positive layer and application of anti-leakage layers, but also can be with the non-skin opposite face side of application of anti-leakage layers, be the non-skin opposite face side engagement of back sheet 3.In the situation that flank sheet is fixed on the non-skin opposite face side as the outer non-woven fabrics 22b of the back sheet 3 of application of anti-leakage layers, under the state of diaper before using, the top ends 4a of folded magic tape 4 also can cover by the sidepiece 2S of absorbability main body 2 when overlooking, and particularly by the sidepiece of positive dough sheet 21, double-deck sidepiece of lateral plate 24 or the sidepiece of back sheet 3, is covered.

In addition, in the diaper 1A～1B of above-mentioned the 1st～2nd embodiment, as Fig. 4 (a) with (b), the middle fixed part 37 that forms flank sheet 3 is bond layers, and is formed extended at both sides to Y-direction, but also can adopt hot melt the hot sticky formation that fetches such as.Adopt hot melt etc. hot sticky fetch form in the middle of fixed part 37 in the situation that, the elastomeric element 33 of configuration forms heat bonding portion each other discontinuously in the Y direction, forms the group of many heat bonding portions of extending in the Y direction on directions X.

In addition, in the diaper 1A～1B of above-mentioned the 1st～2nd embodiment, as shown in Figure 5 and Figure 8, under the state before using, magic tape 4 is temporarily fixed on flank sheet 3 by some embossing 43, but also not set-point embossing 43.

In addition, in the diaper 1A～1B of above-mentioned the 1st～2nd embodiment, as shown in Figure 3 and Figure 7, the folded whole formation of lateral plate 24 is double-deck, but integral body also can not form bilayer.For example, the part that only disposes the elastomeric element 25 of three-dimensional gauffer formation use is folded into bilayer, and other part can be also monolayer.

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

< 1 > disposable diaper, it comprises:

The absorbent main body of lengthwise, its have be disposed at skin opposite face side positive layer, be disposed at the application of anti-leakage layers of non-skin opposite face side and be disposed at this positive layer and this application of anti-leakage layers between absorber; And magic tape, it is arranged at the both sides along principal length direction of this absorbent main body,

Wherein, the set portion of described magic tape is adhesively fixed on the non-skin opposite face of this absorbent main body and is through with it wearer,

Under the state of described disposable diaper before using, described magic tape is folded to the skin opposite face side of described absorbent main body, and while overlooking, the top ends of the body width direction of this magic tape is covered by the sidepiece along principal length direction of described absorbent main body.

The disposable diaper of < 2 > as described in aforementioned < 1 >,

Described positive layer comprises the positive dough sheet of liquid permeability and is disposed at respectively the lateral plate of difficult liquid permeability of the both sides along the longitudinal of this positive dough sheet,

Described lateral plate at least comprises the sheet of a difficult liquid permeability, this sheet to side in main body folding and form two-layer,

Under the state of described disposable diaper before using, the sidepiece of described absorbent main body that covers the top ends of described magic tape forms the lateral part along principal length direction of two-layer lateral plate described in being.

The disposable diaper of < 3 > as described in aforementioned < 1 > or < 2 >,

Described magic tape is by the sidepiece along principal length direction that described absorbent main body is fixed in region that melting consisting of a plurality of portions of melting,

Under the state of described disposable diaper before using, described magic tape is to be positioned at described broken line place of melting region folded.

The disposable diaper of < 4 > as described in any one in aforementioned < 1 >～< 3 >,

Under the state of described disposable diaper before using, be folded to the described magic tape of the skin opposite face side of described absorbent main body, the top ends of the body width direction of this magic tape by adhesive-applying or hot melt, ultrasound wave is melting, any one method in pressure welding, is temporarily fixed at the sidepiece along principal length direction of described absorbent main body.

The disposable diaper of < 5 > as described in any one in aforementioned < 1 >～< 4 >,

Described disposable diaper is in the both sides along principal length direction of this absorbent main body, to be fixed with the diaper of the flank sheet of retractility,

Described flank chip bonding between described positive layer and application of anti-leakage layers or the non-skin opposite face side of application of anti-leakage layers, and is extended and is provided with magic tape to foreign side from the top ends of this flank sheet.

The disposable diaper of < 6 > as described in aforementioned < 5 >,

Described flank sheet has two sheets and is fixed on the elastomeric element extending to body width direction between these two sheets, and this elastomeric element is fixed between described two sheets under elongation state.

The disposable diaper of < 7 > as described in aforementioned < 5 > or < 6 >,

Under the state of described disposable diaper before using, described magic tape is folded at the broken line place of top ends of body width direction that is positioned at described flank sheet.

The disposable diaper of < 8 > as described in any one in aforementioned < 5 >～< 7 >,

Described flank sheet has described two sheets, described elastomeric element and fixes the bond layer of this elastomeric element, utilizes described bond layer that the described elastomeric element of elongation state is fixed between described two sheets,

On described flank sheet, under naturalness, utilize the contractility of described elastomeric element, be formed with the gauffer region that a plurality of pleats of extending along the direction of intersecting with this elastomeric element form,

Under the state of described disposable diaper before using, at least a portion to the folding described magic tape of the skin opposite face side of described flank sheet in described set portion engages with the described pleat in described gauffer region.

The disposable diaper of < 9 > as described in any one in aforementioned < 5 >～< 8 >,

Under the state of described disposable diaper before using, the described magic tape that is folded to the skin opposite face side of described flank sheet is temporarily fixed on described flank sheet with the some embossing that is formed at described set portion,

Described some embossing is formed at not overlapping with described elastomeric element position.

The disposable diaper of < 10 > as described in any one in aforementioned < 5 >～< 9 >,

Described flank sheet has: two sheets, elastomeric elements, fix this elastomeric element absorbent main body side end side main body side bond layer, fix this elastomeric element flank sheet top ends side end side tip side bond layer and be disposed at this main body side bond layer and this tip side bond layer between fix the middle fixed part of two sheets, this flank sheet is by this main body side bond layer and this tip side bond layer, this elastomeric element of elongation state to be fixed between two sheets and to be formed.

The disposable diaper of < 11 > as described in aforementioned < 10 >,

In the middle of described, the width of fixed part is all less than any one in described main body side bond layer and described tip side bond layer, in the zone line in the region as between this main body side bond layer and this tip side bond layer, in body width direction (X), be formed with discontinuously many.

The disposable diaper of < 12 > as described in aforementioned < 11 >,

Described main body side bond layer and be adjacent described in the middle of between fixed part, this centre fixed part of adjacency is each other and between described tip side bond layer and this centre fixed part of being adjacent, is formed with respectively the non-bonding region that there is no placement of adhesives.

The disposable diaper of < 13 > as described in any one in aforementioned < 5 >～< 12 >,

Top ends at described flank sheet has the region of melting consisting of a plurality of portions of melting of fixing described magic tape and this flank sheet, this portion of melting adopts hot melt or ultrasound wave is melting and makes forming with substrate sheets and the sheet heat bonding that forms this flank sheet of this magic tape, and this shape that is melting portion is any one shape in ellipse, circle, rhombus, triangle, polygon.

The disposable diaper of < 14 > as described in aforementioned < 13 >,

A described pattern area that melting that is melting portion is 2mm ²above 30mm ²below, preferred 20mm ²below.

The disposable diaper of < 15 > as described in aforementioned < 13 > or < 14 >,

The described described number that is melting portion of configuration melting in region is 1/cm ²above, preferred 2/cm ²above, other 16/cm ²below, preferred 10/cm ²below.

The disposable diaper of < 16 > as described in any one in aforementioned < 8 >～< 15 >,

Set portion and to make the area (S2) of the overlapping region in the described gauffer region under naturalness that flank sheet shrinks be more than 1/2 with the ratio (S2/S1) of the whole area (S1) of described set portion, preferably more than 2/3.

The disposable diaper of < 17 > as described in any one in aforementioned < 5 >～< 16 >,

As the sheet material that forms described flank sheet, use non-woven fabrics, fabric, thin film or their lamination sheets.

The disposable diaper of < 18 > as described in any one in aforementioned < 1 >～< 17 >,

On the non-skin opposite face (outer surface) of the veutro portion of described disposable diaper, be provided with and make the sheet of taking that the set portion of described magic tape is adhesively fixed.

The disposable diaper of < 19 > as described in any one in aforementioned < 1 >～< 18 >,

There is three-dimensional gauffer and leg creases.

The disposable diaper of < 20 > as described in any one in aforementioned < 1 >～< 19 >,

Described magic tape is with engaging with the top ends of described flank sheet with connecting adhesive layer, and this length direction that spreads all over described magic tape with connecting adhesive layer forms endlong continuously.

Industrial utilizability

According to this utility model, the disposable diaper that provides a kind of dressing to be improved.

Claims (20)

1. a disposable diaper, is characterized in that, comprising:

The absorbent main body of lengthwise, its have be disposed at skin opposite face side positive layer, be disposed at the application of anti-leakage layers of non-skin opposite face side and be disposed at this positive layer and this application of anti-leakage layers between absorber; With

Magic tape, it is arranged at the both sides along principal length direction of this absorbent main body,

Wherein, the set portion of described magic tape is adhesively fixed on the non-skin opposite face of this absorbent main body and is through with it wearer,

Under the state of described disposable diaper before using, described magic tape is folded to the skin opposite face side of described absorbent main body, and while overlooking, the top ends of the body width direction of this magic tape is covered by the sidepiece along principal length direction of described absorbent main body.

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

Described positive layer comprises the positive dough sheet of liquid permeability and is disposed at respectively the lateral plate of difficult liquid permeability of the both sides along the longitudinal of this positive dough sheet,

Described lateral plate at least comprises the sheet of a difficult liquid permeability, this sheet to side in main body folding and form two-layer,

Under the state of described disposable diaper before using, the sidepiece of described absorbent main body that covers the top ends of described magic tape forms the lateral part along principal length direction of two-layer lateral plate described in being.

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

Described magic tape is by the sidepiece along principal length direction that described absorbent main body is fixed in region that melting consisting of a plurality of portions of melting,

Under the state of described disposable diaper before using, described magic tape is to be positioned at described broken line place of melting region folded.

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

Under the state of described disposable diaper before using, fold into the described magic tape of the skin opposite face side of described absorbent main body, the top ends of the body width direction of this magic tape by adhesive-applying or hot melt, ultrasound wave is melting, any one method in pressure welding, is temporarily fixed at the sidepiece along principal length direction of described absorbent main body.

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

Described disposable diaper is in the both sides along principal length direction of this absorbent main body, to be fixed with the diaper of the flank sheet of retractility,

Described flank chip bonding between described positive layer and application of anti-leakage layers or the non-skin opposite face side of application of anti-leakage layers, and is extended and is provided with magic tape to foreign side from the top ends of this flank sheet.

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

Described flank sheet has two sheets and is fixed on the elastomeric element extending to body width direction between these two sheets, and this elastomeric element is fixed between described two sheets under elongation state.

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

Under the state of described disposable diaper before using, described magic tape is folded at the broken line place of top ends of body width direction that is positioned at described flank sheet.

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

Described flank sheet has described two sheets, described elastomeric element and fixes the bond layer of this elastomeric element, and described flank sheet is utilize described bond layer that the described elastomeric element of elongation state is fixed between described two sheets and form,

On described flank sheet, under naturalness, utilize the contractility of described elastomeric element, be formed with the gauffer region that a plurality of pleats of extending along the direction of intersecting with this elastomeric element form,

Under the state of described disposable diaper before using, the described magic tape that folds into the skin opposite face side of described flank sheet engages with the described pleat in described gauffer region at least a portion of described set portion.

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

Under the state of described disposable diaper before using, the described magic tape that folds into the skin opposite face side of described flank sheet is temporarily fixed on described flank sheet with the some embossing that is formed at described set portion,

Described some embossing is formed at not overlapping with described elastomeric element position.

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

Described flank sheet has: two sheets, elastomeric elements, fix this elastomeric element absorbent main body side end side main body side bond layer, fix this elastomeric element flank sheet top ends side end side tip side bond layer and be disposed at this main body side bond layer and this tip side bond layer between fix the middle fixed part of two sheets, this flank sheet is by this main body side bond layer and this tip side bond layer, this elastomeric element of elongation state to be fixed between two sheets and to be formed.

11. disposable diapers as claimed in claim 10, is characterized in that:

In the middle of described, the width of fixed part is all less than any one in described main body side bond layer and described tip side bond layer, in the middle of described, fixed part, in the zone line in the region as between this main body side bond layer and this tip side bond layer, is formed with discontinuously many in body width direction (X).

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

Described main body side bond layer and be adjacent described in the middle of between fixed part, this centre fixed part of adjacency is each other and between described tip side bond layer and this centre fixed part of being adjacent, is formed with respectively the non-bonding region that there is no placement of adhesives.

13. disposable diapers as claimed in claim 5, is characterized in that:

Top ends at described flank sheet has the region of melting consisting of a plurality of portions of melting of fixing described magic tape and this flank sheet, this portion of melting adopts hot melt or ultrasound wave is melting and makes forming with substrate sheets and the sheet heat bonding that forms this flank sheet of this magic tape, and this shape that is melting portion is any one shape in ellipse, circle, rhombus, triangle, polygon.

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

A described pattern area that melting that is melting portion is 2mm ²above 30mm ²below.

15. disposable diapers as described in claim 13 or 14, is characterized in that:

The described described number that is melting portion of configuration melting in region is 1/cm ²above, 16/cm ²below.

16. disposable diapers as claimed in claim 8, is characterized in that:

Set portion and to make the area (S2) of the overlapping region in the described gauffer region under naturalness that flank sheet shrinks be more than 1/2 with the ratio (S2/S1) of the whole area (S1) of described set portion.

17. disposable diapers as claimed in claim 5, is characterized in that:

As the sheet material that forms described flank sheet, use non-woven fabrics, fabric, thin film or their lamination sheets.

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

On the non-skin opposite face (outer surface) of the veutro portion of described disposable diaper, be provided with and make the sheet of taking that the set portion of described magic tape is adhesively fixed.

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

There is three-dimensional gauffer and leg creases.

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

Described magic tape is with engaging with the top ends of described flank sheet with connecting adhesive layer, and this length direction that spreads all over described magic tape with connecting adhesive layer forms endlong continuously.