CN103764087A

CN103764087A - Disposable diaper

Info

Publication number: CN103764087A
Application number: CN201280042933.6A
Authority: CN
Inventors: 佐藤信也
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2011-10-07
Filing date: 2012-09-10
Publication date: 2014-04-30
Anticipated expiration: 2032-09-10
Also published as: WO2013051370A1; JP2013081599A; CN103764087B; JP5912390B2

Abstract

A disposable diaper (1) is provided with a front surface sheet (10), a rear surface sheet (20), and an absorption body (30). The diaper (1) has a crotch section (C) and has a belly-side section (A) and a back-side section (B) which extend from the front and rear of the crotch section (C). The diaper (1) comprises: fastening tapes (40) for fastening purpose, the fastening tapes (40) being provided in the left and right side regions of the back-side section (B); and a target tape (50) to which the fastening tapes (40) are fastened, the target tape (50) being provided on the outer surface of the belly-side section (A). The absorption body (30) has a recess (31) in the region thereof which overlaps the target tape (50), and the recess (31) is formed along the width direction of the absorption body (30). The presence of the recess (31) can be recognized by tactile sensation from the rear surface-side outer surface of the diaper. The recess (31) as a whole is formed so that the recess (31) is line symmetrical about the longitudinal centerline (Lv) of the target tape (50) and non-symmetrical about the horizontal centerline (LH) of the target tape (50).

Description

Disposable diaper

Technical field

The present invention relates to magic tape to anchor on object tape and the disposable diaper of the type of being installed.

Background technology

By the magic tape of left and right that the drosal part of diaper is arranged, be bonded on the object tape arranging at the outer surface of veutro and the disposable diaper of the type of being installed,, in the so-called diaper with fixed type, the balance of left and right during set magic tape can be destroyed, therefore easily produces liquid and leak phenomenon.At this, so that being object, the set position balance of the magic tape of left and right carried out various motions: be for example implemented in the demonstration of the benchmark (sign of location) of set position on object tape, visually confirm the technology of set position.For example, in patent documentation 1, record, object tape is engaged by thermal welding at the outer surface of diaper, the mark of the set position using the joint pattern based on thermal welding as magic tape.

But, be only designed with the method for visually identifying set position, in the case of night etc. dark place more changing babies' napkin or tool people visually impaired more changing babies' napkin, can produce unfavorable situation.

At this, different from above-mentioned technology, in patent documentation 2 to 4, recorded having by embossing processing sets up on the face of foreign side's one side of the absorber of diaper concavo-convexly, or by form thin portion in absorber, concavo-convex content is set.Whether but this is concavo-convex is comfortableness and the absorbability in order to improve absorber, and from outside, is confirmed whether Excreta and has the object of being diffused as to arrange, be not the benchmark (sign of location) of the set position of magic tape.

Prior art document

Patent documentation

Patent documentation 1: JP 2007-307210 communique

Patent documentation 2: Unexamined Patent 10-146359 communique

Patent documentation 3: JP 2005-152241 communique

Patent documentation 4: JP 2011-115245 communique

Summary of the invention

The invention provides a kind of disposable diaper, possess: the positive dough sheet that is positioned at the skin opposite face side of wearer; Be positioned at the back sheet of non-skin opposite face side; And be arranged at the absorber between two, have: under wearing state, be positioned at the crotch under the crotch of wearer; The veutro portion and the drosal part that extend with front and back from this crotch, have in the lateral region of the left and right of drosal part the magic tape that set is used, and has the object tape of this magic tape of set at the outer surface of veutro portion.Above-mentioned absorber, with the overlapping region of above-mentioned object tape in more than 1 or 2 recess of having on the width at this absorber continuously or forming discontinuously.The existence of above-mentioned recess can the outer surface perception from the back sheet side of diaper by sense of touch.Above-mentioned recess, it is formed as being line symmetric shape with respect to the vertical centrage of above-mentioned object tape as a whole, and is asymmetrical shape with respect to the horizontal centrage of this object tape.

The invention provides the suitable manufacture method of above-mentioned disposable diaper.In this manufacture method, utilize sheet parcel long-pending slim and manufacture absorber.Then, from the skin opposite face side of absorber, carry out the extruding based on embossing processing, on the surface of the skin opposite face side of this absorber, form above-mentioned recess, and also form above-mentioned recess on the surface of non-skin opposite face side.

Accompanying drawing explanation

Fig. 1 (a) is for seeing the plane graph of an embodiment of disposable diaper of the present invention from positive dough sheet side, Fig. 1 (b) cuts off the back sheet part of the diaper shown in Fig. 1 (a), sees the plane graph of this diaper from back sheet side.

Fig. 2 (a) and (b) for representing other the schematic diagram of major part of embodiment of disposable diaper of the present invention.

Fig. 3 is other the schematic diagram of major part of embodiment that represents disposable diaper of the present invention.

Fig. 4 (a) is the schematic diagram for the major part of other embodiments of expression disposable diaper of the present invention to (c).

Fig. 5 is the schematic diagram that represents the major part of other embodiments of disposable diaper of the present invention.

Fig. 6 is the schematic diagram that represents the major part of other embodiments of disposable diaper of the present invention.

Fig. 7 is the schematic diagram that represents the major part of other embodiments of disposable diaper of the present invention.

Fig. 8 is the schematic diagram that represents the major part of other embodiments of disposable diaper of the present invention.

Fig. 9 (a) and (b) for representing the schematic diagram of major part of other embodiments of disposable diaper of the present invention.

Figure 10 is the schematic diagram that represents the major part of other embodiments of disposable diaper of the present invention.

The specific embodiment

Below, based on preferred embodiment with reference to the accompanying drawings of the present invention.Fig. 1 (a) and (b) be the plane graph that represents an embodiment of disposable diaper of the present invention.Fig. 1 (a) is the state of seeing diaper 1 from positive dough sheet side, and Fig. 1 (b) cuts off a part of back sheet, sees the state of diaper 1 from back sheet side.

Fig. 1 (a) and (b) shown in diaper 1 be the so-called diaper with fixed type.Diaper 1 is the diaper with the shape of the lengthwise of length direction X and width Y, has the positive dough sheet 10 and the back sheet 20 that is positioned at non-skin opposite face side of the skin opposite face side that is positioned at wearer.Between positive dough sheet 10 and back sheet 20, dispose the absorber 30 of liquid retainability.Positive dough sheet 10 and back sheet 20 extend to foreign side from the periphery of absorber 30.

As positive dough sheet 10, back sheet 20 and absorber 30, this kind of diaper can be used the same material using with existing diaper.As positive dough sheet 10, for example, can use the liquid permeability sheet material of non-woven fabrics or membrana perforata etc.As back sheet, can use plastic film etc., spin the sheet material of the hydrophobicity of SMS-spun-bonded non-woven fabrics (SMS non-woven fabrics) etc.Plastic film consists of micro-porous film, can give water vapo(u)r transmission.In addition, at the outer surface lamination of micro-porous film, having the composite sheet of the aeration sheet of non-woven fabrics etc. also to can be used as back sheet uses.As absorber 30, can use the long-pending slim of long-pending slim, this fibrous material of fibrous material of liquid retainability and the mixture of superabsorbent polymer.This is long-pending slim, and its entirety is by various parcels of the liquid permeability sheet of thin paper etc. etc.

The left and right sides portion of the positive dough sheet side in diaper 1, disposes the lateral plate 11 extending on long side direction X.Lateral plate 11 consists of the sheet material with hydrophobicity of non-woven fabrics etc.Lateral plate 11 is configured on this positive dough sheet 10 in the mode of the part that covers positive dough sheet 10.In the lateral margin of each lateral plate 11, the lateral margin of foreign side's side of width Y is fixed on back sheet 20.On the other hand, in the lateral margin of each lateral plate 11, the lateral margin of interior side's side of width Y is free end.At the reach the standard grade elastomeric element 12 of rubber etc. of this free end, with elongation state, be fixed.Thus, lateral plate 11 erects, and forms leakproof pad (cuff).

Diaper 1, in its wearing state, the A of veutro portion and the drosal part B that there is the crotch C under the crotch that is positioned at wearer and extend from the front and back of crotch C.At crotch C, be provided with from the Yuan Xiang side, the left and right sides of absorber 30 and extend, and the shank pad 13 of the retractility of extending on long side direction X.Shank pad 13, between lateral plate 11 and back sheet 20, is fixed and forms with elongation state by the elastomeric element 14 of line rubber etc.

At the drosal part B of diaper 1, be provided with the extended side wing flap 15 in Yuan Xiang side, the left and right sides from absorber 30.Side wing flap 15 forms by engaging lateral plate 11 and back sheet 20.Between lateral plate 11 and back sheet 20, with elongation state, dispose elastomeric element (not shown).Side wing flap 15 can stretch on width Y.Or, replace and form side wing flap by lateral plate 11 and back sheet 20, and make the side wing flap of retractility with other sheet, be arranged on the drosal part B of diaper 1.

In side wing flap 15, magic tape 40 is installed in the lateral margin of foreign side's side of width Y.Magic tape 40 have substrate sheets 41, this substrate sheets 41 towards with the face of positive dough sheet 10 same side on be provided with set portion 42.As set portion 42, in this kind of diaper, use the material identical with existing diaper.For example, the hook part of use surface fastener (fastener), binding agent etc.

At the A of veutro portion of diaper 1, at the outer surface of diaper 1, object tape 50 is installed.The rectangle of object tape 50 for growing crosswise, has: equidirectional longitudinal and equidirectional laterally with the width Y of diaper 1 with the long side direction X of diaper 1.Object tape 50, corresponding to the material of the set portion 42 of above-mentioned magic tape 40, can select suitable material.Set portion 42 is for example in the situation of hook part of surface fastener, as object tape 50, uses the fibre plate that can engage with this hook part, such as fabric or non-woven fabrics etc.In the situation of the set portion 42 of magic tape 40 for binding agent formation, as object tape 50, use plastic level and smooth film etc.

Diaper of the present invention, absorber has a feature, and specifically, when overlooking diaper, absorber, in the region overlapping with object tape, has one or 2 above recesses.This recess, it exists from the outer surface of the back sheet side of diaper can pass through tactilely-perceptible.That is, form this recess, make to touch the region that forms recess by hands at the outer surface from diaper, can perceive this recess and be formed on this region.Recess, conventionally on the surface of the non-skin opposite face side of absorber, forms with the surface of back sheet opposite side.In order to realize such perception, for example, the formation degree of depth of recess is set as 2～10mm left and right.Therefore, form the recess of such degree of depth, for example, can implement embossing processing by comprising with sheet on the long-pending slim absorber forming of liquid retainability fibrous material, this absorber is partly compressed.Or, also can, when to the long-pending fine manufacture absorber of the fibrous material of liquid retainability, the part that becomes recess be formed as thinner.

From the viewpoint of perception concave-convex sense more significantly, absorber is carried out to embossing, and to be processed to form recess more favourable.By embossing, be processed to form in the situation of recess, from the surface of the non-skin opposite face side of absorber, push, also can push from the surface of skin opposite face side.In the case of from the surface of the skin opposite face side of absorber is pushed, the not only position of extruding, also forms recess corresponding to the surface of the non-skin opposite face side at the position of extruding.

Particularly, face side a side of absorber configures positive dough sheet, in the opposing party's face side, configure under the state of back sheet, from positive dough sheet side, through this positive dough sheet, utilize embossing processing to push, surface in the skin opposite face side of absorber forms recess, and the surface in non-skin opposite face side also forms recess, and easier perception is formed with this recess at this, therefore preferred.From back sheet side, through this back sheet, utilize embossing processing to push absorber also passable, but in this case, note not producing on sheet overleaf the defect of pin-and-hole etc.

Absorber only has in the situation of 1 recess, and with the transversely extension at object tape, continuous mode forms this recess.Absorber has in the situation of multiple recesses, multiple these recesses with object tape transversely but discontinuous mode form.That is, while considering the imaginary line that connects multiple these recesses, so that this imaginary line configures each recess in the mode of transversely extending of object tape.

No matter absorber only has 1 recess still to have multiple recesses, this recess, as a whole, is formed as line symmetric shape with respect to the vertical centrage of object tape.On this basis, this recess, as its entirety, is formed as asymmetry with respect to the horizontal centrage of object tape.Specifically, as follows.Absorber only has in the situation of 1 recess, and 1 this recess is formed as line symmetric shape with respect to the vertical centrage of object tape, and is formed as asymmetrical shape with respect to the horizontal centrage of object tape.Absorber has in the situation of multiple recesses, be conceived to the shape of each recess and the recess arrangement of the configuration pattern formation that multiple this recess entirety forms, this recess arrangement is formed as line symmetric shape with respect to the vertical centrage of object tape, and is formed as asymmetrical shape with respect to the horizontal centrage of object tape." as a whole ", absorber only has in the situation of 1 recess, refers to that the shape of this recess is all.Absorber has in the situation of multiple recesses, refers to the recess arrangement that configuration pattern that the shape of each recess and the entirety of multiple these recesses forms forms.

On the surface of the non-skin opposite face side of absorber, recess that can perception by sense of touch from outer surface is formed as to above-mentioned shape, have advantages of and can not rely on vision and magic tape is symmetrically anchored on object tape.Specifically, because recess is formed as line symmetric shape with respect to the vertical centrage of object tape, therefore, by the finger that uses two handss, from the lateral margin of the left and right of object tape, to vertical centrage, draw recess, with finger, be easy to the position of the vertical centrage of groping object tape.In addition, because recess is formed as asymmetrical shape with respect to the horizontal centrage of object tape, therefore, from the position with the vertical centrage of pointing the object tape of groping, to the finger of two handss of lateral margin of the left and right of object tape, can draw recess, therefore, easily with finger, find with respect to the symmetrical position of vertical centrage.Take this position as target, magic tape is anchored on object tape, can make thus symmetrically set of magic tape.So, according to the present invention, replacing or the people visually impaired that can in the dark easily carry out diaper also easily carry out the exchange of diaper.

In order to make object tape be positioned to be exactly formed with in absorber the position of recess, for example, adopt following method.When the formation of recess, use embossing processing.The recess being processed to form by embossing, due to extruding cause compacted, higher than the light transmission rate at other positions.Utilize this light transmission rate to position.For this object, sheet forms telltale mark overleaf.Telltale mark for example forms by printing.When a side's of absorber the overlapping back sheet of face, the light transmission rate of this absorber is perceived by known optical means so that the high position of the light transmission rate mode consistent with sheet forms overleaf telltale mark overlapping both.Then the telltale mark, forming take sheet overleaf overlaps magic tape the outer surface of this back sheet as benchmark.Adopt such method, magic tape can be positioned to the position that is formed with recess in absorber reliably.

In the diaper 1 of the embodiment shown in Fig. 1, on the surface of the non-skin abutment face side of absorber 30, be formed with 4

recess

31a, 31b, 31c, 31d.Recess 31a, 31d have identical size and identical shape.Recess 31b, 31c have the identical size different from

recess

31a, 31d and identical shape.Any of 4 recesses is ellipse, and its major axis is consistent with the long side direction X of diaper 1.Recess 31a, 31d and

recess

31b, 31c are similar shape.Consider the imaginary line I that connects 4 recesses _lsituation under, this imaginary line I _ldraw the curve for the arcuate in shape of transversely extending at object tape 50.The imaginary line I being formed by the curve of this arch _lfor, the top of arch is towards the ora terminalis side of the A of veutro portion of diaper 1.During recess arrangement that the configuration pattern that is conceived to consist of the shape of each recess and 4 recess entirety forms, this recess arrangement is with respect to the vertical centre line L of object tape 50 _vbe line symmetric shape.And with respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.Recess 31a, 31d are positioned at respect to vertical centre line L _vfor the position of line symmetry.Equally, recess 31b, 31c are positioned at respect to vertical centre line L _vfor the position of line symmetry.

While dressing the diaper 1 of present embodiment, use the finger of two handss, from the lateral margin of the left and right of object tape 50 to vertical centre line L _valong imaginary line I _ldraw successively recess, easily with finger, find vertical centre line L _vposition.Then, the vertical centre line L from finding with finger _vposition to the lateral margin of the left and right of object tape 50 along imaginary line I _l, with the finger of two handss, describe recess, easily with finger, find with respect to vertical centre line L thus _vsymmetrical position.

Particularly, in the present embodiment, recess 31a, 31d and

recess

31b, 31c vary in size, and therefore, more easily find with respect to vertical centre line L _vsymmetrical position.From more easily finding the viewpoint of symmetric position, make the degree of depth of recess, along with from vertical centre line L _vto the left and right side and symmetrically change.For example, make near vertical centre line L _vrecess 31b, the 31c of position be formed as relatively shallowly, and be formed as relatively dark at recess 31a, the 31d of near the position near the edge of the left and right sides.Or on the contrary,

recess

31b, 31c are formed as relatively dark,

recess

31a, 31d are formed as relatively shallow.

In Fig. 2～Figure 10, represent the diaper of the configuration pattern that formed by the shape of recess and the entirety of the multiple recesses embodiment different from Fig. 1.Embodiment shown in these figure, the item identical with the embodiment of previous narration, is suitable for the previously explanation of the embodiment of narration.Therefore, omit the explanation of the item common with the embodiment of previously narration.Fig. 2 (a) and embodiment (b) are also same with the embodiment shown in Fig. 1 has multiple recesses.In Fig. 2 (a), at oval-shaped 6 the recess 31a～31f that are transversely formed with discontinuously mutually same shape of object tape 50.By be formed as oval-shaped each recess 31a～31f central smoothing the imaginary line (not shown) that is connected to form draw as the mild arch of transversely extending at object tape 50.In addition, each recess 31a～31f, the inclination difference of its major axis, and it tilts with respect to vertical centre line L _vbe line symmetry.Consequently, during recess arrangement that the configuration pattern that is conceived to consist of the shape of each recess 31a～31f and 6 recess 31a～31f entirety forms, this recess arrangement, with respect to the vertical centre line L of object tape 50 _vbe line symmetric shape.With respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.

In Fig. 2 (b), at oval-shaped 7 the recess 31a～31g that are transversely formed with discontinuously mutually same shape of object tape 50.By be formed as oval-shaped each recess 31a～31g central smoothing the imaginary line (not shown) that is connected to form draw the curve into the arch shape transversely extending at object tape 50.Each recess 31a～31g, its long axis direction is consistent with the long side direction of diaper 1.In 5 recess 31a～31g, be positioned at central recess 31d and be positioned at vertical centre line L with its major axis _von mode configure.And each recess 31a～31g is with respect to vertical centre line L _vbe configured to line symmetry.Consequently, during recess arrangement that the configuration pattern that is conceived to consist of 7 recess 31a～31g entirety forms, this recess arrangement is with respect to the vertical centre line L of object tape 50 _vbe line symmetric shape.And with respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.

In embodiment as shown in Figure 3, be formed with the recess 31a～31c that is roughly formed as criss-cross same size similar shape.Each recess 31a～31c, consistent and the roughly consistent mode of width of criss-cross X direction and diaper is configured with the long side direction of criss-cross y direction roughly and diaper.In 3 recess 31a～31c, the recess 31b of central authorities, the intersection point of its longitudinal axis and transverse axis is than the horizontal centre line L of object tape _hbias is in the leading section side of diaper.And, recess 31b, its longitudinal axis is positioned at the vertical centre line L of object tape _von.The recess 31a, the 31c that clip the left and right of recess 31b, the intersection point of its longitudinal axis and transverse axis is than horizontal centre line L _hbias is in the crotch side of diaper.The imaginary line (not shown) longitudinal axis in each recess 31a～31c being connected smoothly with the intersection point of transverse axis and form, draws the curve into the mild arch of transversely extending at object tape 50.And each recess 31a～31c is with respect to vertical centre line L _vthe mode that is line symmetry configures.Consequently, during recess arrangement that the configuration pattern that is conceived to consist of the entirety of 3 recess 31a～31c forms, this recess arrangement is with respect to the vertical centre line L of object tape 50 _vbe line symmetric shape.And with respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.

The recess of the embodiment shown in Fig. 4 (a) to (c) is the single recess constituting by the curvilinear portion of multiple arches.Embodiment as shown in Figure 4 (a), the end of 3 curvilinear portion 31a～31c is engaged with each other, and forms 1 recess 31 of the curve shape of the waveform transversely extending that is formed on object tape 50.And recess 31 is with respect to the vertical centre line L of object tape 50 _vbe formed as the shape of line symmetry.Any of each curvilinear portion 31a～31c of formation arch, configures in longitudinal equidirectional mode with top of head for target band 50.Specifically, the mode that has a top with the end side of the veutro portion towards diaper configures.In 3 curvilinear portion 31a～31c, be positioned at the horizontal centre line L of central curvilinear portion 31b than object tape 50 _hbias is in the leading section side of diaper.Clip curvilinear portion 31a, the 31c of the left and right of curvilinear portion 31b, than horizontal centre line L _hbias is in the crotch side of diaper.

In embodiment shown in Fig. 4 (b), a side's of 2

curvilinear portion

31a, 31b end is engaged with each other, and forms 1 recess 31 of the curve shape of the waveform transversely extending that is formed on object tape 50.The junction surface of 2

curvilinear portion

31a, 31b, is positioned at the vertical centre line L of object tape 50 _vupper, and than horizontal centre line L _hbias is in the end side of the veutro portion of diaper.Each end of recess 31 is positioned at than horizontal centre line L _hbias is in the position of the crotch side of diaper.And recess 31, with respect to the vertical centre line L of object tape 50 _vbe formed as the shape of line symmetry.Any of each

curvilinear portion

31a, 31b, all configures in the mode that the end side of the veutro portion towards diaper has a top.

Embodiment shown in Fig. 4 (c), identical with the embodiment shown in Fig. 4 (b), a side's of 2

curvilinear portion

31a, 31b end is engaged with each other, and forms 1 recess 31 of the curve shape of the waveform transversely extending that is formed on object tape 50.But different from the embodiment of Fig. 4 (b), any of each

curvilinear portion

31a, 31b, all configures in the mode that the crotch side towards diaper has a top.In addition, identical with the embodiment shown in Fig. 4 (b).

So, Fig. 4 (a) in the embodiment shown in (c), the vertical centre line L at 1 recess 31 transversely extending of object tape 50 with respect to object tape 50 _vbe line symmetry.And with respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.Particularly, in the embodiment shown in Fig. 4 (a), be positioned at central curvilinear portion 31b and be positioned at the curvilinear portion 31 of its left and right, the abutment of 31c, the bending direction of curve changes hastily, therefore, easily finds the position at this abutment with finger.Therefore, can more easily carry out symmetrically set of magic tape.

The recess of the embodiment shown in Fig. 5, same to the embodiment shown in (c) with Fig. 4 (a), the end of multiple curvilinear portion 31a～31c of arch is engaged with each other, and forms 1 recess 31 of the curve shape of the waveform transversely extending that is formed on object tape 50.But the point that present embodiment is different from the embodiment shown in Fig. 4 (a) to (c) is, the direction at the top of each curvilinear portion 31a～31c.Specifically, so that in the curvilinear portion 31a～31c of 3 arches, the top of the curvilinear portion 31b of the arch of central authorities towards direction and curvilinear portion 31a, the 31c of the arch of left and right top towards direction differ 180 degree and contrary mode, configure the curvilinear portion of each arch shape.The top of the curvilinear portion 31b of central authorities is towards the end side of the veutro portion of diaper.The top of curvilinear portion 31a, the 31c of left and right is towards the crotch side of diaper.And the top of the curvilinear portion 31b of central authorities is than the horizontal centre line L of object tape 50 _hbias is in the front of diaper.The junction surface of the end of curvilinear portion 31b of central authorities and the end of the curvilinear portion 31a of left and right, 31c, than horizontal centre line L _hbias is in the crotch side of diaper.Equally, each end of recess 31, than horizontal centre line L _hbias is in the crotch side of diaper.There is the recess 31 of such shape, with respect to the vertical centre line L of score 50 _vbe formed as line symmetric shape.With respect to the horizontal centre line L of object tape 50 _hfor asymmetrical shape.In present embodiment, the position on this summit towards changing, therefore, is easily found at boundary curve in the curvilinear portion 31 about being positioned at, the top of 31c with finger.Therefore, more easy set magic tape symmetrically.

In embodiment shown in Fig. 6, clipping the vertical centre line L of object tape 50 _vbe the position of line symmetry, be formed with the

recess

31,31 of a pair of wavy curve shape.Each recess 31 is in the transversely extension of object tape 50.Each recess 31, all forms for the end of the curvilinear portion 31a～31c of the arch by 3 same sizes and same shape is engaged with each other.These curvilinear portion 31a～31c engages and the recess 31 of formation, is positioned at by vertical centre line L in its end of 2 _vthe end of position is indexed to the crotch side of diaper, and is positioned at the end side in the veutro portion of diaper by the end bias of the lateral margin of object tape 50.Its result, each recess 31 becomes the vertical centre line L from object tape 50 _vto lateral margin, roll oblique state.Therefore,, during recess arrangement that the configuration pattern that is conceived to consist of the shape of each recess 31 and the entirety of 2 recesses 31 forms, this recess arrangement is the vertical centre line L with respect to object tape 50 _vbe line symmetric shape.And with respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.

Embodiment shown in Fig. 7, identical to the embodiment shown in Fig. 6 with Fig. 4, formation has the recess 31 of the curvilinear portion of arch.But it is different that present embodiment and Fig. 4 also have to the embodiment shown in Fig. 6, each curvilinear portion end each other does not engage, and each curvilinear portion is independent.Its result is formed with 3 recesses 31 on absorber 30.Each recess 31 is in the transversely extension of object tape 50.Each recess 31 is configured to towards having top with the longitudinal identical direction of object tape 50.Specifically, be configured to there is top towards the end side of the veutro portion of diaper.In 3 recesses 31, be positioned at central recess 31 and be positioned at the horizontal centre line L than object tape 50 _hbias is in the position of the end side of the veutro portion of diaper.The recess 31 that clips the left and right that is positioned at central recess 31 is positioned at across horizontal centre line L _hposition.Its result, during recess arrangement that the configuration pattern that is conceived to consist of the shape of each recess 31 and the entirety of 3 recesses 31 forms, this recess arrangement is with respect to the vertical centre line L of object tape 50 _vbe line symmetric shape.And with respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.

In embodiment shown in Fig. 8, in the roughly whole region of the width of absorber 30, be formed with the recess 31a of the arch of extending on this width.The recess 31a of this arch, its top is towards the end side of the veutro portion of diaper.Top is positioned at the horizontal centre line L than object tape 50 _hbias is in the position of the end side of the veutro portion of diaper.2 ends are positioned at than horizontal centre line L _hbias is in the position of the crotch side of diaper.And in present embodiment, on the basis of the recess 31a of arch, be also formed with 3 oval-shaped little recess 31b.Oval-shaped little recess 31b, the mode consistent with the long side direction of diaper with its major axis arranges.The position at each little recess 31b center is positioned at same position on the width of diaper.In 3 little recess 31b, be positioned at the little recess 31b at center, its major axis is positioned at the vertical centre line L of object tape 50 _von.The a pair of little recess 31b that is positioned at left and right with the end of the recess 31a of arch near the overlapping mode in position configure.Be positioned at the little recess 31b at center and the recess 31a of arch is not overlapping.During recess arrangement that the configuration pattern that is conceived to consist of the shape of

recess

31a, 31b and the entirety of

recess

31a, 31b forms, this recess arrangement is with respect to the vertical centre line L of object tape 50 _vbe line symmetric shape.And with respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.

Above, at Fig. 4 in the embodiment shown in Fig. 8, be at least formed with one object tape 50 transversely extend and towards the recess of the arch longitudinally with top of this object tape 50.On the other hand, Fig. 9 (a) and (b) shown in embodiment in, different from the embodiment described above, recess is linearity.In embodiment shown in Fig. 9 (a), in the vertical centre line L of object tape 50 _vnear, form with respect to vertical centre line L _vthe first recess 31a of the pair of straight wire of line symmetry.The horizontal centre line L of the first recess 31a and object tape 50 _hextend abreast.In addition, the first recess 31a is than horizontal centre line L _hposition a little bias to the crotch side of diaper.In addition, in the present embodiment, in the lateral region of the left and right of absorber 30, with respect to vertical centre line L _vline is formed with the second recess 31b of three pairs of linearities symmetrically.The horizontal centre line L of each the second recess 31b and object tape 50 _hextend abreast.In addition, each the second recess 31b is than horizontal centre line L _hposition bias in the crotch side of diaper.And in present embodiment, between the first recess 31a and the second recess 31b, be formed with the 3rd recess 31c in the vertical upwardly extending pair of straight wire of object tape 50.The 3rd recess 31c in longitudinal roughly whole region of object tape 50 with the horizontal centre line L of crosscut _hmode form.

In embodiment shown in Fig. 9 (b), in absorber and the roughly entirety overlapping region of object tape 50, be formed with roughly the first recess 31a of X word shape.Roughly the intersection point of the first recess 31a of X word shape, with the vertical centre line L of object tape 50 _vwith horizontal centre line L _hthe position of intersection point almost consistent.The first recess 31a is by than horizontal centre line L _hbe positioned at a pair of bottom straight line position 311a, the 312a of crotch side; With than horizontal centre line L _hthe a pair of top straight line position 313a, the 314a that are positioned at the end side of the veutro portion of diaper form.Straight line position,

bottom

311a, 312a are longer than straight line position, top 313a, 314a.Its result, the first recess 31 is with respect to horizontal centre line L _hfor asymmetrical shape.In the present embodiment, between top straight line position 313a and straight line position, bottom 311a, and between top straight line position 314a and straight line position, bottom 312a, be formed with the second recess 31b and the 3rd recess 31c of linearity.The second recess 31b forms along straight line position, top 313a, 314a.On the other hand, the 3rd recess 31c forms along straight line position, bottom 311a, 312a.The second recess 31b is positioned at the horizontal centre line L than object tape 50 _hbias is in the position of the end side of the veutro portion of diaper.On the other hand, the 3rd recess 31c is positioned at the horizontal centre line L than object tape 50 _hbias is in the position of crotch side.In addition, the 3rd recess 31c is longer than the second recess 31b.And the 3rd recess 31c is positioned at the position of more leaning on the horizontal foreign side of object tape 50 than the second recess 31b.

As mentioned above, Fig. 9 (a) and (b) shown in embodiment in, same with the embodiment of above-mentioned explanation, during recess arrangement that the configuration pattern that is conceived to consist of the shape of each recess and the entirety of multiple these recesses forms, this recess arrangement is with respect to the vertical centre line L of object tape 50 _vbe line symmetric shape.And with respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.

In embodiment shown in Figure 10, along the vertical centre line L of object tape 50 _v, be formed with the first recess 31a at the vertical upwardly extending Rack of this object tape 50.The first recess 31a consists of the aggregation of multiple little recesses.The first recess 31a forms in longitudinal roughly whole region of object tape 50.In addition, in the present embodiment, in the lateral region of the left and right of object tape 50, be formed with a pair of the second recess 31b at the vertical upwardly extending Rack of this object tape 50.The second recess 31b is same with the first recess 31a, the aggregation of multiple little recesses, consists of.The second recess 31b, in the horizontal centre line L of object tape 50 _hposition one end is set, the other end is positioned at the lower ora terminalis of object tape 50.And, in the present embodiment, between the first recess 31a and the second recess 31b, be provided with the 3rd recess 31c of a pair of linearity transversely extending at object tape 50.The 3rd recess 31c is positioned at the horizontal centre line L of object tape 50 _hon.So, in present embodiment, during recess arrangement that the configuration pattern that is conceived to consist of the shape of each recess 31a～31c and the entirety of multiple this recess 31a～31c forms, this recess arrangement is with respect to the vertical centre line L of object tape 50 _vbe line symmetric shape.And with respect to the horizontal centre line L of object tape 50 _hbe asymmetrical shape.

Above, based on the present invention has preferred embodiment been described, but the invention is not restricted to above-mentioned embodiment.For example, the shape of each embodiment center dant and allocation position can suitable mutual combinations.

In addition, in the above-described embodiment, only absorber 30 with the overlapping region of object tape 50 in be formed with recess, but, for the object different from the suitable installation of magic tape, can, forming recess with the nonoverlapping position of object tape 50, not hinder the present invention yet.

According to above-mentioned embodiment, the invention also discloses following disposable diaper and manufacture method thereof.

<1> disposable diaper, possesses: the positive dough sheet that is positioned at the skin opposite face side of wearer; Be positioned at the back sheet of non-skin opposite face side; And be arranged at the absorber between two, have: under wearing state, be positioned at the crotch under the crotch of wearer; The veutro portion and the drosal part that extend with front and back from this crotch, have in the lateral region of the left and right of drosal part the magic tape that set is used, and has the object tape of this magic tape of set at the outer surface of veutro portion, and this disposable diaper is characterised in that:

Above-mentioned absorber, with the overlapping region of above-mentioned object tape in more than 1 or 2 recess of having on the width at this absorber continuously or forming discontinuously, the existence of this recess can the outer surface perception from the back sheet side of diaper by sense of touch,

Above-mentioned recess, it is formed as the vertical centrage with respect to above-mentioned object tape is as a whole line symmetric shape, and is asymmetrical shape with respect to the horizontal centrage of this object tape

The disposable diaper that <2> records as above-mentioned <1>, above-mentioned recess, forms by the embossing processing of implementing from the non-skin opposite face side of above-mentioned absorber.

The disposable diaper that <3> records as above-mentioned <1>, above-mentioned recess, while manufacturing above-mentioned absorber the fibrous material of liquid retainability being amassed to fibre, the part that will be formed as this recess forms thinlyyer.

<4> is as the disposable diaper of any record of above-mentioned <1>～<3>, and above-mentioned recess consists of the aggregation of multiple little recesses.

<5> is as the disposable diaper of any record of above-mentioned <1>～<3>, above-mentioned absorber has multiple above-mentioned recesses, and multiple these recesses transversely form discontinuously above-mentioned object tape.

The disposable diaper that <6> records as above-mentioned <5>, 2 above above-mentioned recesses, transversely forming discontinuously of object tape.

<7> is as the disposable diaper of above-mentioned <5> or <6> record, above-mentioned absorber has 4 above-mentioned recesses, 4 these recesses are ellipse, and its major axis is consistent with the long side direction of diaper.

The disposable diaper that <8> records as above-mentioned <7>, the imaginary line that connects 4 above-mentioned recesses is depicted the curve in the arch of transversely extending of above-mentioned object tape, the imaginary line consisting of the curve of this arch, the top of arch is towards the ora terminalis side of the veutro portion of diaper.

<9> is as the disposable diaper of above-mentioned <5> or <6> record, above-mentioned recess is formed as roughly cross, this recess arrangement one-tenth makes this, and roughly criss-cross y direction is consistent with the long side direction of diaper, and roughly criss-cross X direction is consistent with the width of diaper to make this.

<10> is as the disposable diaper of any record of above-mentioned <1>～<3>, above-mentioned absorber has 1 above-mentioned recess, and this recess forms continuously in the mode of transversely extending at above-mentioned object tape.

The disposable diaper that <11> records as above-mentioned <10>,

Above-mentioned recess is to make the arch of top towards the end side of the veutro portion of diaper,

Above-mentioned top is positioned at the position of bias in the end side of the veutro portion of diaper than the horizontal centrage of object tape,

At above-mentioned absorber, be also formed with 3 oval-shaped little recesses,

Above-mentioned little recess arrangement becomes its major axis consistent with the long side direction of diaper,

The position at the center of each little recess is positioned at same position on the width of diaper,

The major axis of little recess in 3 above-mentioned little recesses, that be positioned at center is positioned on the vertical centrage of above-mentioned object tape, and a pair of above-mentioned little recess arrangement one-tenth about being positioned at is overlapping with near the position end of the above-mentioned recess of arch.

<12> is as the disposable diaper of any record of above-mentioned <1>～<3>, be formed with at least one above-mentioned object tape transversely extend and towards the recess of the arch longitudinally with top of this object tape.

The disposable diaper that <13> records as above-mentioned <12>, the recess of above-mentioned arch is formed with more than 2, the recess of each arch is in the transversely configuration of above-mentioned object tape, and is configured to have top towards this object tape longitudinal equidirectional.

The disposable diaper that <14> records as above-mentioned <12>, above-mentioned recess consists of single recess, and this single recess is constituted by the curvilinear portion of multiple arches.

The disposable diaper that <15> records as above-mentioned <14>, one side's of 2 above-mentioned curvilinear portion end is engaged with each other, form 1 described recess, described recess is formed as the curve shape at the waveform transversely extending of described object tape

The junction surface of 2 above-mentioned curvilinear portion is located at the position in the end side of the veutro portion of diaper on the vertical centrage of above-mentioned object tape and than horizontal centrage bias,

Each end of above-mentioned recess is positioned at the position in the crotch side of diaper than horizontal centrage bias.

The disposable diaper that <16> records as above-mentioned <12>, the position that is line symmetry at the vertical centrage that clips above-mentioned object tape is formed with the recess of a pair of wavy curve shape,

Each recess is in the transversely extension of above-mentioned object tape,

Each recess, all forms for the end of the above-mentioned curvilinear portion of the arch by 3 same sizes and same shape is engaged with each other,

These curvilinear portion engage and the above-mentioned recess of formation, in its 2 ends, be positioned at the crotch side to diaper by the end displacement of vertical position of center line, and be positioned at the end bias of the lateral margin position of leaning on above-mentioned object tape in the end side of the veutro portion of diaper, consequently, each recess becomes from the vertical centrage of above-mentioned object tape and rolls oblique state to lateral margin.

The disposable diaper that <17> records as above-mentioned <12>, the recess of above-mentioned arch is formed with 3, the recess of each arch is in the transversely configuration of above-mentioned object tape, and according to make arches in the recess of 3 arches, central authorities recess top towards direction and the top of the recess of the arch of left and right towards direction in the reverse mode of 180 degree, configure the recess of each arch.

The disposable diaper that <18> records as above-mentioned <12>, the end of the recess of above-mentioned arch is engaged with each other, and is formed on the recess of the curve shape transversely extending of above-mentioned object tape.

The disposable diaper that <19> records as above-mentioned <18>, the end of the above-mentioned recess of 3 arches is engaged with each other, form 1 recess, this recess is formed as the curve shape at the waveform transversely extending of described object tape

The top of the above-mentioned recess of the arch of central authorities is towards the end side of the veutro portion of diaper, and the top of the above-mentioned recess of the arch of left and right is towards the crotch side of diaper,

The top of the above-mentioned recess of the arch of central authorities is the front at diaper than the horizontal centrage bias of above-mentioned object tape,

The junction surface of the end of above-mentioned recess of arch of central authorities and the end of the above-mentioned recess of the arch of left and right, the crotch side than horizontal centrage bias at diaper,

Each end of above-mentioned 1 recess is the crotch side at diaper than horizontal centrage bias.

<20>, as the disposable diaper that above-mentioned <12> records, is formed with 3 above-mentioned recesses of the curvilinear portion with arch,

Each curvilinear portion end each other does not engage, and each curvilinear portion is independent,

Each recess is in the transversely extension of above-mentioned object tape,

Each recess 31 is configured to have top towards the end side of the veutro portion of diaper,

In 3 above-mentioned recesses, be positioned at central recess and be positioned at the position of bias in the end side of the veutro portion of diaper than the horizontal centrage of above-mentioned object tape, the recess that clips the left and right that is positioned at central recess is positioned at the position across horizontal centrage.

<21> is as the disposable diaper of any record of above-mentioned <1>～<20>, above-mentioned recess, along with the vertical centrage from above-mentioned object tape goes side to the left and right, the degree of depth of recess symmetrically changes.

<22> is as the disposable diaper of any record of above-mentioned <1>～<3>, near the vertical centrage of above-mentioned object tape, with respect to vertical centrage, be line and be formed with symmetrically the first recess of pair of straight wire

The horizontal centrage of the first recess and above-mentioned object tape extends abreast,

The first recess is the crotch side at diaper than the position bias of horizontal centrage,

In the lateral region of the left and right of above-mentioned absorber, with respect to vertical centrage, be line and be formed with symmetrically the second recess of three pairs of linearities,

The horizontal centrage of each the second recess and above-mentioned object tape extends abreast,

Each the second recess is the crotch side at diaper than the position bias of horizontal centrage,

Between the first recess and the second recess, be formed with the 3rd recess in the vertical upwardly extending pair of straight wire of above-mentioned object tape,

The 3rd recess, in longitudinal roughly whole region of above-mentioned object tape, forms in the mode of the horizontal centrage of crosscut.

<23> is as the disposable diaper of any record of above-mentioned <1>～<3>, in above-mentioned absorber, be formed with roughly the first recess of X word shape with the roughly entirety in the overlapping region of above-mentioned object tape

The roughly intersection point in the first recess of X word shape, roughly consistent with the position of the vertical centrage of above-mentioned object tape and the intersection point of horizontal centrage,

The first recess consists of the straight line position, a pair of top that is positioned at the straight line position, a pair of bottom of crotch side than horizontal centrage and is positioned at the end side of the veutro portion of diaper than horizontal centrage,

Straight line position, bottom is longer than straight line position, top, and consequently, the first recess is asymmetrical shape with respect to horizontal centrage,

Between straight line position, top and straight line position, bottom, be formed with respectively the second recess and the 3rd recess of linearity,

The second recess forms along straight line position, top,

The 3rd recess forms along straight line position, bottom,

The second recess is positioned at the end side of the veutro portion of diaper than the horizontal centrage of above-mentioned object tape,

The 3rd recess is positioned at crotch side than the horizontal centrage of above-mentioned object tape,

The 3rd recess is longer than the second recess,

The 3rd recess is positioned at the horizontal foreign side of more leaning on above-mentioned object tape than the second recess.

<24> is as the disposable diaper of any record of above-mentioned <1>～<3>, along the vertical centrage of above-mentioned object tape, be formed with the first recess at the vertical upwardly extending Rack of this object tape

The first recess consists of the aggregation of multiple little recesses,

The first recess forms in longitudinal roughly whole region of above-mentioned object tape,

In the lateral region of the left and right of above-mentioned object tape, be formed with a pair of the second recess at the vertical upwardly extending Rack of this object tape,

The second recess consists of the aggregation of multiple little recesses,

The second recess, arranges one end in the position of the horizontal centrage of above-mentioned object tape, and the other end is positioned at the lower ora terminalis of above-mentioned object tape,

Between the first recess and the second recess, be provided with the 3rd recess of a pair of linearity transversely extending at above-mentioned object tape,

The 3rd recess is positioned on the horizontal centrage of object tape.

<25> is as the disposable diaper of any record of above-mentioned <1>～<24>, and it is for by anchoring at above-mentioned magic tape the disposable diaper with fixed pattern that above-mentioned object tape is dressed.

<26> is as the disposable diaper of any record of above-mentioned <1>～<25>, above-mentioned magic tape there is substrate sheets and be arranged on this substrate sheets towards with the face of above-mentioned positive dough sheet same side on set portion

As above-mentioned set portion, use hook part or the binding agent of surface fastener.

<27> is as the disposable diaper of any record of above-mentioned <1>～<26>, above-mentioned object tape is the rectangle of growing crosswise, and has with the long side direction of diaper equidirectional longitudinal and equidirectional laterally with the width of diaper.

The manufacture method of the disposable diaper that the above-mentioned <1> of <28> records,

In the one side side of above-mentioned absorber, dispose above-mentioned positive dough sheet, in another side side, dispose under the state of above-mentioned back sheet, from this positive dough sheet side, across this positive dough sheet, carry out the extruding based on embossing processing, surface in the skin opposite face side of this absorber forms above-mentioned recess, and also forms above-mentioned recess on the surface of non-skin opposite face side.

The manufacture method of the disposable urine portion that the above-mentioned <1> of <29> records,

With sheet parcel is long-pending slim, formation absorber carries out the extruding based on embossing processing from the skin opposite face side of this absorber, forms above-mentioned recess, and also form above-mentioned recess on the surface of non-skin opposite face side on the surface of the skin opposite face side of this absorber.

Industrial applicibility

According to absorbent commodity of the present invention, by contacting with the object tape being positioned on absorber, can easily identify the symmetrically position of set magic tape.Therefore, can not pass through vision, just can symmetrical set magic tape, so, in the dark carry out the exchange of diaper or tool people visually impaired and carry out diaper exchange and become easy.

Claims

1. a disposable diaper, possesses: the positive dough sheet that is positioned at the skin opposite face side of wearer; Be positioned at the back sheet of non-skin opposite face side; And be arranged at the absorber between two, have: under wearing state, be positioned at the crotch under the crotch of wearer; The veutro portion and the drosal part that extend with front and back from this crotch, have in the lateral region of the left and right of drosal part the magic tape that set is used, and has the object tape of this magic tape of set at the outer surface of veutro portion, and this disposable diaper is characterised in that:

Described absorber, with the overlapping region of described object tape in more than 1 or 2 recess of having on the width at this absorber continuously or forming discontinuously, the existence of this recess can the outer surface perception from the back sheet side of diaper by sense of touch,

Described recess, it is formed as the vertical centrage with respect to described object tape is as a whole line symmetric shape, and is asymmetrical shape with respect to the horizontal centrage of this object tape.

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

Described recess, forms by the embossing processing of implementing from the non-skin opposite face side of described absorber.

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

Described recess, while manufacturing described absorber the fibrous material of liquid retainability being amassed to fibre, the part that will be formed as this recess forms thinlyyer.

4. the disposable diaper as described in any one in claim 1～3, is characterized in that:

Described recess consists of the aggregation of multiple little recesses.

5. the disposable diaper as described in any one in claim 1～4, is characterized in that:

2 above described recesses, transversely forming discontinuously of object tape.

6. the disposable diaper as described in any one in claim 1～5, is characterized in that:

Be formed with at least one described object tape transversely extend and towards the recess of the arch longitudinally with top of this object tape.

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

The recess of described arch is formed with more than 2, and the recess of each arch is in the transversely configuration of described object tape, and is configured to have top towards this object tape longitudinal equidirectional.

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

The recess of described arch is formed with 3, the recess of each arch is in the transversely configuration of described object tape, and so that the top of the recess of arches in the recess of 3 arches, central authorities towards direction and the recess of the arch of left and right top towards direction differ 180 degree and contrary mode configures the recess of each arch.

9. disposable diaper as claimed in claim 7 or 8, is characterized in that:

The end of the recess of described arch is engaged with each other, and is formed on the recess of the curve shape transversely extending of described object tape.

10. the disposable diaper as described in any one in claim 1～9, is characterized in that:

Described recess, along with the vertical centrage from described object tape goes side to the left and right, the degree of depth of recess symmetrically changes.

The manufacture method of 11. 1 kinds of disposable diapers, its manufacture method that is disposable diaper claimed in claim 1, the method is characterized in that:

With sheet parcel is long-pending slim, manufacture absorber carries out the extruding based on embossing processing from the skin opposite face side of this absorber, forms described recess, and also form described recess on the surface of non-skin opposite face side on the surface of the skin opposite face side of this absorber.