CN100490769C - Pull-on disposable wearing article - Google Patents
Pull-on disposable wearing article Download PDFInfo
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- CN100490769C CN100490769C CNB2006101213886A CN200610121388A CN100490769C CN 100490769 C CN100490769 C CN 100490769C CN B2006101213886 A CNB2006101213886 A CN B2006101213886A CN 200610121388 A CN200610121388 A CN 200610121388A CN 100490769 C CN100490769 C CN 100490769C
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Abstract
The invention provided a pull-on disposable wearing article having an excellent appearance without gathers by contraction formed on the outer surface of front and rear waist regions though the front and rear waist regions are constituted of an elastically contractible material. The pull-on disposable wearing article is provided with a chassis (15) and an absorbent batt structure (16) extending on the inner side. The chassis (15) has the front waist region (12), the rear waist region (13) and a crotch region (14) and is composed of a base sheet (19) which is substantially not elastically contractible in a transverse direction, and first and second outer sheets (20, 21) stretched in the transverse direction and bonded in such a stretched state to outer surfaces of the base sheet (19) in the front and rear waist regions, respectively, and being elastically extendible/contractible in the transverse direction. The absorbent batt structure (16) is laid inside the chassis (15). The base sheet (19) is formed with gathers as the first and second outer sheets contract.
Description
Technical field
The present invention relates to pull-on disposable wearing article, specifically, relate to and being suitable for as the pants type incontinence with diaper, pull-on disposable hippen, disposable child with sport pants etc., particularly the pull-on disposable incontinence is with the dressing articles of diaper.
Background technology
In order to adapt to the requirement of dressing well-formedness, the lumbar region, whole front and back of former pull-on disposable wearing article can be shunk to the waist peripheral direction.For example, in patent documentation 1, the lumbar region is by inside and outside flooring and the pull-on disposable diaper that constitutes between the telescopic resilience material between them before and after disclosing.
In patent documentation 2～4, the disposable absorptive diaper that has absorbent core, the extensible member of broad is set on the root edge of the recessed pars convoluta that is formed at crotch area is disclosed.
In patent documentation 5, the disposable diaper that forms in absorbed layer from least 3 grooves of crotch area lumbar region extension is forwards, backwards disclosed.
No. 3581373 communique of [patent documentation 1] special permission
[patent documentation 2] spy opens clear 62-231005 communique
[patent documentation 3] spy opens clear 62-243806 communique
[patent documentation 4] spy opens clear 62-243807 communique
No. 3616077 communique of [patent documentation 5] special permission
Summary of the invention
According to patent documentation 1, the contraction owing to the telescopic resilience material on the interior outside of pro-rear waist region forms the wrinkle pleat.Before and after the wrinkle pleat of lumbar region outside not only consider it is unfavorable from the outward appearance of diaper, and on colluding other object the time, can influence the wearing state, make the material breakage that forms this lumbar region.
In patent documentation 2～4, the extensible member about the broad installed on the root edge that is formed at the recessed pars convoluta of striding the portion zone does not disclose special technical meaning.Particularly because can not find out, so the not talkative extensible member that uses broad because of its technical meaning about the extensible member of broad and the technical meaning of absorbefacient dependency relation.
According to patent documentation 5, when putting on diaper, smooth absorbed layer portion in the central forms the W tee section by groove and is bent downwardly in both sides.Reclinate both sides are when putting on diaper and the interior side contacts of wearer's two thighs.In general, compare with other constituent material of diaper, absorbed layer is inflexible, so the interior side contacts of the absorbed layer of these inflexible reclinate both sides part and wearer's two thighs is brought discomfort to the wearer.And, to compare with the occasion that only absorbed layer is curved W shape, the quantity of its number of bends, the peak valley that promptly forms becomes many, so by the inboard cramping absorbed layer of wearer's two thighs the time, might not bend to the regulation shape.
The objective of the invention is to: the problem that the dressing articles such as pull-on disposable diaper of solution prior art have.
In order to realize described purpose, the present invention relates to improved pull-on disposable wearing article, comprise: chassis (chassis) and absorbability batt structure body (absorbent battstructure) with the orthogonal longitudinal axis and transverse axis, described chassis has: the front waist region that comprises front waist belt portion, form by the thermoplasticity fabric nonwoven cloth, be elastic extension and be essentially non-resilient retractility to described y direction to described X direction; Comprise the rear waist region of back belt portion, form, be elastic extension and be essentially non-resilient flexibility to described y direction to described X direction by the thermoplasticity fabric nonwoven cloth; At least be essentially the crotch area of non-resilient retractility to described y direction; Both side edges portion in lumbar region, described front and back, make lumbar region, described front and back on the whole expansion plane on the described chassis that this both side edges portion is separated from each other, the both side edges portion of the described crotch area of described X direction formed from the lateral of described crotch area described longitudinal axis side has the shape of the recessed pars convoluta of certain depth, and, described chassis has waist opening and a pair of leg opening, and the inner face on the described chassis of described batt structure body between lumbar region, described front and back extends.
Architectural feature of the present invention is that described chassis comprises: base lamina, have lumbar region, described front and back, described crotch area and described recessed pars convoluta, and be essentially non-resilient retractility to described y direction at least; And dress thin slice outside first and second, under the state that stretches to described X direction, be bonded on the outside separately, lumbar region, described front and back of described base lamina, have elastic extension to X direction, utilize its contractility on described base lamina, to form the wrinkle pleat; A pair of hip side thin slice engages near the root edge separately of the described recessed pars convoluta of described crotch area in the bottom of the both side edges portion of described batt structure body respectively, simultaneously, its both ends are combined on the lumbar region, described front and back, wherein, this hip side thin slice has root edge portion, free edge portion and described both ends, has elastic extension and has liquid-repellency to described y direction at least; Can freely stretch with respect to the described both side edges portion of described batt structure body in the disengaged zone that comprises the described hip side thin slice of described free edge portion, when putting on described article, respectively in the described both side edges portion of described crotch area, each stretches out to the described X direction outside since near the of both sides in the imbibition zone of described batt structure body.
The present invention can comprise preferred embodiment following.
Described imbibition zone is formed by the absorbency core, described core has a pair of first curved guide bar portion, this first curved guide bar portion is left to described X direction near the described both sides of the described core that is positioned at described crotch area mutually, and extends to described y direction.
Described core also has the second curved guide bar portion, and this second curved guide bar portion extends to lumbar region, described front and back from described crotch area between the centre of the described a pair of first curved guide bar portion.
Described core has a pair of ear, and this ear stretches out to the described X direction outside near the described a pair of first curved guide bar portion.
The a pair of partition fin of the liquid-repellency that contracts to described y direction elasticity Shen has root edge portion, free edge portion and subtend end respectively, described edge portion is fixed on respectively between the both side edges portion and described a pair of hip side thin slice of described batt structure body, described partition fin can erect in the mode of leaving upward from described each hip side thin slice respectively under the state that shrinks.
The narrowest position in described disengaged zone that comprises the described hip side thin slice of described free edge portion is stretched out to described X direction and is of a size of 10～50mm.
When observing from the front of described front waist region, described leg opening is general triangular respectively, this triangle is by to the described X direction below ora terminalis of the described front waist region of linearly extension roughly, the lateral margin that is the described crotch area of concave shape extension to described y direction, and below described between ora terminalis and the described lateral margin substantially obliquely roughly the described rear waist region of linearly extension below lateral margin form, the part with described base lamina of described wrinkle pleat is exposed from each leg opening that is general triangular.
Described chassis is processed into, with the lumbar region, described front and back of the area coincidence of described core described first and second outside in the zone of dress thin slice, lose elastic extension in fact along described X direction.
The sizable liquid-repellency that has at least with the described at least imbibition zone of described batt structure body cuts off thin slice, is positioned at the bottom in described imbibition zone.
Described chassis comprises the 3rd outer dress thin slice of non-resilient retractility, and the described the 3rd outer dress thin slice covers the outside of described crotch area between lumbar region, described front and back.
Closing line interrupted or that extend continuously engages with described base lamina described first and second outer thin slice of adorning along described y direction in fact to utilize many.
According to pull-on disposable wearing article of the present invention, because the lumbar region, front and back is by at least to the non-shrinking in fact base lamina of y direction, join to respectively on the lumbar region, front and back of base lamina, to the X direction elastic shrinkage first and second outside the dress thin slice constitute, so, utilize the contraction of the first and second outer dress thin slices, in the lumbar region, front and back that is positioned at inboard base lamina, be formed on the wrinkle pleat that has breathability between itself and the wearers skin, but adorn on the thin slice outside first and second before and after being positioned at outside the lumbar region, except that belt portion, do not form the wrinkle pleat, so not only the outward appearance of article is good, and on being suspended to other article the time, not worrying and influence the wearing state, or make the material breakage of this lumbar region of formation.
Because the lumbar region, front and back is the non-retractility of elasticity to y direction, so when putting on article, can pull on article smoothly in the mode that hip side thin slice also fully adheres in the femoribus internus elastic elongation of wearer crotch, bending downwards.The state of wearing at article, produce the wrinkle pleat on the base lamina of pro-rear waist region inboard, but because the first and second outer dress thin slices of lumbar region, front and back are respectively the thin slices of elastic extension, so pro-rear waist region outside does not produce irregular wrinkle pleat, simultaneously, because hip side thin slice also is the thin slice of elastic extension, do not contact with medial surface of thigh so do not produce irregular wrinkle pleat ground in crotch.The bending downwards of hip side thin slice is because when putting on article, the free edge portion sliding-contact of this hip side thin slice is in wearer's femoribus internus, thereby swings to the below.Therefore, can fully prevent to spill from the excremental of wearer crotch.
And, according to the embodiment of the present invention, when putting on article, when the wearer opens waist opening, can discern the leg opening of fully opening clearly from waist opening, foot can not hung on the leg opening, can easily foot be inserted in the leg opening.Under the state of wearing of article, hip side thin slice forms sidewall because its elastic contractile force pushes the ear of core by the first curved guide bar portion upward from the below that cuts off fin in ear.And, if core by wearer's femoribus internus cramping, then is deformed into the W tee section by the second curved guide bar portion.Continue to keep this W shape by hip side thin slice.Therefore, as long as article are normally worn, the peak portion of this W shape just contacts substantially with wearer's the outside of Excretory organ, prevents that Excreta from transmitting to wearer's skin, can impel simultaneously Excreta to flow into, reduce contacting of Excreta and user skin to the paddy portion of this W shape.
Description of drawings
Fig. 1 is the axonometric chart as the pull-on disposable diaper of an example of pull-on disposable wearing article of the present invention.
Fig. 2 is the expansion plane graph that the lumbar region, front and back of described diaper is separated from each other.
Fig. 3 is the exploded perspective view of described diaper.
Fig. 4 is the amplification sectional view along the 4-4 line of Fig. 2.
Fig. 5 is the amplification view of absorbency core.
Fig. 6 is the amplification sectional view along the 6-6 line of Fig. 2.
Fig. 7 is the sectional view that absorbability batt structure body is out of shape from the state of Fig. 6 by the cylindrical void of both side edges portion.
Fig. 8 is that described batt structure body is further by the sectional view of the cylindrical void between described cylindrical void from the state distortion of Fig. 7.
The specific embodiment
Below, be example with illustrated pull-on disposable diaper, the embodiment of pull-on disposable wearing article of the present invention is described.
In Fig. 1,2, the pants type that the lumbar region connected before and after diaper formed has longitudinal axis Y and transverse axis X, waist opening 10, a pair of leg opening 11, front waist region 12, back lumbar part district 13 and strides portion zone 14.Wherein, expression in length and breadth the line of axle Y, X be also used as line of cut 4,6 among Fig. 2 respectively.Diaper is made of chassis 15, absorbability batt structure body 16 basically.Batt structure body 16 extends to longitudinal axis Y direction between the lumbar region, front and back 12,13 of 15 inboards, chassis.Batt structure body 16 is that the leading section side to chassis 15 is offset slightly with the position relation on chassis 15.
In Fig. 2～5, chassis 15 by to axle Y, X (Fig. 2) direction in length and breadth, at least to the non-resilient flexible base lamina 19 of longitudinal axis Y direction and outside adorn thin slice 37 and constitute.Should outer dress thin slice 37 by the direction to transverse axis X be elastic extension, to the direction of longitudinal axis Y be essentially non-resilient retractility first outer dress thin slice 20, the second outer dress thin slice 21 and to the direction of spool Y, X in length and breadth be non-retractility the 3rd outside adorn thin slice 22 and constitute.Base lamina 19 is that front waist region 112, rear waist region 113, crotch area 114 connect continuously.When observing front waist region 112 regarding the coupling part of itself and crotch area 114 as imaginary line, this front waist region 112 has the long rectangle of transverse axis directions X.When regarding the coupling part of itself and crotch area 114 as imaginary line and observing rear waist region 113, this rear waist region 113 is trapezoidal.The area of rear waist region 113 with this shape is bigger than front waist region 112, with abundant covering wearer's buttocks.The inwardly recessed slightly song of the both side edges of crotch area 114.
As shown in Figure 3, the shape of the first outer dress thin slice 20 and the second outer dress thin slice 21, basic identical with the shape of the front waist region 112 of base lamina 19 and rear waist region 113.But the first outer dress thin slice 20 and the second outer dress thin slice 21 are littler than front and back lumbar region 112,113 in the size of longitudinal axis Y direction.The 3rd outer dress thin slice 22 connects between the first and second outer dress thin slices 20,21 by (not shown) such as hotmelt, welding means, is positioned at the outside of the crotch area 114 of base lamina 19.The first and second outer dress thin slices 20,21 connect by the 3rd outer dress thin slice 22.But, also can be, the 3rd outer dress thin slice 22 and first and second outer dress thin slice 20,21 are not to form dividually, but whole outer dress slice region, be that first, second adorns thin slice 20,21,22 outward by forming with this first and second identical continuous fibre nonwoven cloth of outer dress thin slice with the 3rd, and the retractility in the zone suitable with the 3rd outer dress thin slice is lost owing to heat treatment etc.
(with reference to Fig. 1) as shown in Figure 3, Figure 4, the end of pro-rear waist region 12,13 is provided with front and rear waist portion 29,30.Front and rear waist portion 29,30 is selected from the thermoplastic synthetic fiber non-woven fabrics that for example has non-resilient retractility along longitudinal axis Y direction arbitrarily, this non-woven fabrics is rolled over is two parts, and portion inserts many along the transverse axis directions X and has the elastomeric element 31 of elastic extension and constitute within it.The end on the chassis 15 of lumbar region 12,13 engaged by hotmelt (not shown) before and after front and rear waist portion 29,30 for example clipped.The size of the longitudinal axis Y direction of back belt portion 30 is bigger than the size of front waist belt portion 29, and the quantity of the former elastomeric element 31 is more than the latter's.Front and rear waist portion 29,30 also can replace with the described non-woven fabrics different with the chassis 15 of lumbar region, front and back 12,13, and the end inflection on this chassis is formed.Preferably, the elongation of the elastomeric element 31 of front and rear waist portion 29,30 for example 50～150% o'clock stress be 10N/50mm to the maximum.
This wrinkle pleat 39 portion within it forms passage, and the breathability owing to base lamina 19 self between base lamina 19 and wearers skin has air permeability and good, can see this wrinkle pleat 39 from the leg opening 11 of Fig. 1.In other words, specifically narrate seeing this point, as shown in Figure 1, when observing diaper from the front of front waist region 12, leg opening 11 is triangular in shape basically.This triangle by to the below ora terminalis 340 of the front waist region 12 of the linearly extension of transverse axis directions X, to the lateral margin 250 of the crotch area 14 of the recessed song of longitudinal axis Y one side and between lower end edge 340 and lateral margin 250 obliquely the linearity below lateral margin 240 that extends the rear waist region 13 of (with reference to Fig. 2) forms, a part that forms the base lamina 19 of the pleat 39 that wrinkles is exposed from the leg opening that this is substantially triangular in shape.Leg opening 11 with this shape is fully opened when putting on article, can find out fully from waist opening 10.If this wrinkle pleat 39 is formed on the article surface, be unhandsome in appearance then at article, but because be formed on the article inner face, so the inner face of lumbar region, front and back 12,13 often can provide functions such as advantages of good skin sense of touch and breathability.The person of needs of article need not to open waist opening 10 and observes article inside, just can confirm such function, and this is very easily.Certainly, when putting on article, this wrinkle pleat 39 is hidden in the wearer's who inserts leg opening 11 the lower limb and can not sees.And in the crotch area 14 on the chassis 15 of elastic extension, the first and second outer dress thin slices 20,21 are not set, so do not produce a bit wrinkle pleat.
The height of lumbar region 12,13 reduces on this point before and after making, and the pleat 39 that preferably wrinkles is swung to a side of transverse axis directions X, i.e. left side among Fig. 1 or right side basically.
As shown in Figure 1, 2, can select strand elastic 44 to be installed along the below lateral margin 240 of the rear waist region 13 that forms leg opening 11 parts.This elastomeric element 44 also can be band shape.
In the zone on the chassis 15 in the imbibition zone that is equivalent to batt structure body 16, under making the situation that dress thin slice 20,21 suitably extends along the transverse axis directions X outside first and second, make its forfeiture elastic extension by for example heat treated, under this state, preferably at least except that this two side areas, batt structure body 16 is bonded on the base lamina 19 of the described processing region on chassis 15 and crotch area 14.Thus, batt structure body 16 can prevent in advance because the contraction of the first and second outer dress thin slices 20,21 and undue distortion causes the wearer to feel uncomfortable, or makes problem such as absorbent properties reduction.In order to give this forfeiture effect, can replace described heat treated, hot melt application on the zone of the base lamina 19 that batt structure body 16 engages engages to axle Y, directions X are the suitable thin slices such as thermoplastic synthetic fiber non-woven fabrics of non-resilient retractility in length and breadth.
As shown in Figure 1, the both sides 51 of pro-rear waist region 12,13, chassis 15 can utilize joint method such as welding to engage off and on with peeling in longitudinal axis Y direction, form the pants type (underpants type) with waist opening 10 and leg opening 11.
Shown in Fig. 2,5 (also with reference to Fig. 6～8), batt structure body 16 by with fluff pulp as main material, mix the absorbency core 40 of the polymer particle etc. of super-absorbert therein, from the bottom surface turn back upward liquid permeability crimping thin slice 41 that core 40 is covered and on the central authorities of crimping thin slice 41 on liquid permeability top laminate 42 formations that engage by hotmelt etc.Be fixed at batt structure body 16 under the state on the regulation position on chassis 15 (with reference to Fig. 2), core 40 stretches out a pair of 40a of ear, 40b, 40c (with reference to Fig. 5) respectively in the substantial middle zone of crotch area 14 and the both sides of end, front and back.In core 40, inboard at the 40a of ear, a pair of cylindrical void 45a as curved guide bar portion extends to the direction of longitudinal axis Y, and, between a pair of cylindrical void 45a, up to the lumbar region, front and back 12,13, have cylindrical void 45b, when putting on article, extend to the length that is positioned on wearer's anal cleft at least always as curved guide bar portion.These cylindrical voids also can be replaced by compressor bar groove and the low-density bar portion that partly reduces material.
At two side lower parts of batt structure body 16, liquid-repellency cuts off fin 46 and stretches out to the transverse axis directions X outside from its both side edges portion.Cut off fin 46 and have the root edge 46a of portion, the free edge 46b of portion and both ends 46c, by folding for two-part liquid-repellency sheets of fibres 49, insert the folding part be the free edge 46b of portion be that the elastomeric element 47 of elasticity flexibility and the plastic film chip 48 to longitudinal axis Y direction elastic telescopic that inserts elastomeric element 47 belows constitute along longitudinal axis Y direction.Cut off fin 46 on two side lower parts that the root edge 46a of portion are fixed on batt structure body 16 in,, under the state of longitudinal axis Y one side, both ends 46c is fixed on batt structure body 16 top at the free edge 46b of portion.Because the contraction of elastomeric element 47 and thin film 48, cutting off fin 46 can erect (with reference to Fig. 1,6,7) in the mode of leaving upward from aftermentioned hip side thin slice 50.The elongation stress of preferred partition fin 46 is lower than the elongation stress of front and rear waist portion 29,30.
In Fig. 6～8 (also with reference to Fig. 1～3), in the both sides of the crotch area 14 of base lamina 19, a pair of hip side thin slice 50 to the liquid-repellency of longitudinal axis Y direction elastic telescopic stretches out to the transverse axis directions X outside at least.Specifically, hip side thin slice 50 has the root edge 50a of portion, the free edge 50b of portion and both ends 50c, and this hip side thin slice 50 is in the bottom that cuts off fin 46, along near the root edge of the recessed pars convoluta (with reference to Fig. 2) of crotch area 14 at least under the state of longitudinal axis Y direction elongation, when engaging the root edge 50a of portion, both ends 50c is bonded on the chassis 15 of lumbar region 12,13, front and back.Therefore, can freely stretch with respect to the side edge part of batt structure body 16 in the disengaged zone that comprises the hip side thin slice 50 of the free edge 50b of portion, when putting on article, at the sidepiece of crotch area 14, from stretching out to the transverse axis directions X outside near the sidepiece in the imbibition zone of batt structure body 16.Under this stretched out state, hip side thin slice 50 separated along the vertical direction with the partition fin 46 that erects towards the top, and the free at least edge 50b of portion stretches out to the transverse axis directions X outside from the lateral surface that cuts off fin 46.For hip side thin slice 50, inboard recessed when bent at the free edge 50b of portion to the transverse axis directions X, dig up the roots remaining zone outside the 50a of edge portion, promptly comprise the size of stretching out to the transverse axis directions X outside at the narrowest position in the disengaged zone of the free edge 50b of portion, corresponding with the elongation stress of hip side thin slice 50, the 40a of ear of core 40 is pushed upward from the below, form sidewall effectively at the 40a of ear, simultaneously, make hip side thin slice 50 stably be crimped on wearer's femoribus internus, consider this gravel size decision 10～50mm from this point.Hip side thin slice 50 also can adopt the thin film of elastic extension except can adopting the material that has with same material in chassis 15 and elongation stress, or the laminated product of this thin film and fabric nonwoven cloth etc.
As previously shown, hip side thin slice 50 can not form with chassis 15 dividually, for example can utilize with form before and after lumbar region 12,13 first and second outer dress thin slice 20,21 identical materials with elastic extension and with the successive thin slice of these outer dress thin slices, the crotch area 14 between the thin slice is adorned in formation outside these, other zone except that the both sides of crotch area 14 is heat-treated, make its forfeiture retractility, then these both sides can become the part that is equivalent to hip side thin slice 50.
In addition, as shown in Figure 2, and narration from behind is appreciated that the outside that hip side thin slice 50 is positioned at the 40a of the ear adjacency of core 40 is very important.
Adorn outside between thin slice 37 and the base lamina 19,, particularly in the zone of absorbency core, put into the partition thin slice 38 of liquid-repellency, preferred opaque liquid in batt structure body 16 residing imbibition zones.Wherein, cutting off thin slice 38 also can be between batt structure body 16 and base lamina 19.
About the function of the crotch area 14 of embodiments of the present invention, if special the proposition, shown in Fig. 7,8, when putting on article, hip side thin slice 50 elastic elongations of the broad of crotch area 14, crooked downwards, attached to wearer's femoribus internus.At the state of wearing of article, hip side thin slice 50 is because its elastic contractile force and the 40a of ear of core 40 is pushed by the first cylindrical void 45a upward from the below that cuts off fin 46 is formed on the 40a of ear sidewall.And if core 40 is clamped by wearer's thigh inner face, then being deformed into the cross section by the second cylindrical void 45b is W shape.The central spud of cross section W shape is positioned at wearer's anal cleft position at least.Hip side thin slice 50 continues to keep these W shapes owing to elastic contractile force at crotch area 14.Therefore, crotch area 14 continues the stable contact of maintenance with respect to wearer's thigh inner face.Like this, the 40a of ear of hip side thin slice 50, core 40 and at least the first cylindrical void 45a have dependency relation, so that obtain crotch area 14 with optimal morphology.
Symbol description
10 waist opening 45a, first cylindrical void
11 leg opening 45b, second cylindrical void
12 front waist region 46 are cut off fin
13 rear waist region 46a root edges
14 crotch areas
The free edge of 46b
46c both ends, 15 chassis
16 absorbability batt structure bodies, 50 hip side thin slices
19 base lamina 50a root edge portions
The free edge of 20 first outer dress thin slice 50b portion
21 second outer dress thin slices
The 50c both ends
The front waist region of 22 the 3rd outer dress thin slice 112 base lamina
29, the rear waist region of 30 belt portions, 113 base lamina
The crotch area of 31 elastomeric elements, 114 base lamina
38 cut off the below lateral margin of thin slice 240 rear waist region
39 wrinkle pleats
The lateral margin of 250 crotch areas
The below ora terminalis of 40 cores, 340 front waist region
The Y of the 40a ear longitudinal axis
42 top laminate X transverse axis
Claims (11)
1. pull-on disposable wearing article comprises: have the chassis and the absorbability batt structure body of the orthogonal longitudinal axis and transverse axis,
Described chassis has: comprise the front waist region of front waist belt portion, formed by the thermoplasticity fabric nonwoven cloth, be elastic extension and be non-resilient retractility to the direction of the described longitudinal axis to the direction of described transverse axis; Comprise the rear waist region of back belt portion, form, be elastic extension and be non-resilient retractility to the direction of the described longitudinal axis to the direction of described transverse axis by the thermoplasticity fabric nonwoven cloth; At least the direction to the described longitudinal axis is the crotch area of non-resilient retractility; Both side edges portion in lumbar region, described front and back, make lumbar region, described front and back on the whole expansion plane on the described chassis that this both side edges portion is separated from each other, the both side edges portion of the described crotch area of the direction of described transverse axis formed from a side of the described longitudinal axis in lateral of described crotch area have the shape of recessed pars convoluta, and, described chassis has waist opening and a pair of leg opening
The inner face on the described chassis of described batt structure body between lumbar region, described front and back extends,
It is characterized in that described chassis comprises: base lamina, have lumbar region, described front and back, described crotch area and described recessed pars convoluta, the direction to the described longitudinal axis is non-resilient retractility at least; And dress thin slice outside first and second, under the state that the direction to described transverse axis stretches, be bonded on the outside separately, lumbar region, described front and back of described base lamina, direction to transverse axis has elastic extension, utilizes its contractility to form the wrinkle pleat on described base lamina;
A pair of hip side thin slice engages near the root edge separately of the described recessed pars convoluta of described crotch area in the bottom of the both side edges portion of described batt structure body respectively, simultaneously, its both ends are combined on the lumbar region, described front and back, wherein, this hip side thin slice has root edge portion, free edge portion and described both ends, and the direction to the described longitudinal axis has elastic extension and has liquid-repellency at least; Can freely stretch with respect to the described both side edges portion of described batt structure body in the disengaged zone that comprises the described hip side thin slice of described free edge portion, when putting on described article, in the described both side edges portion of described crotch area, each stretches out since near the direction outside to described transverse axis of the both sides in the imbibition zone of described batt structure body respectively.
2. as the article of claim 1 record, it is characterized in that, described imbibition zone is formed by the absorbency core, described core has a pair of first curved guide bar portion, this first curved guide bar portion is left to the direction of described transverse axis near the described both sides of the described core that is positioned at described crotch area mutually, and extends to the direction of the described longitudinal axis.
3. as the article of claim 2 record, it is characterized in that described core also has the second curved guide bar portion, this second curved guide bar portion extends to lumbar region, described front and back from described crotch area between the centre of the described a pair of first curved guide bar portion.
4. as the article of claim 2 or 3 records, it is characterized in that described core has a pair of ear, this ear stretches out to the direction outside of described transverse axis near the described a pair of first curved guide bar portion.
5. as the article of claim 1 record, it is characterized in that, a pair of partition fin to the liquid-repellency of the direction elastic telescopic of the described longitudinal axis has root edge portion, free edge portion and subtend end respectively, described edge portion is fixed on respectively between the both side edges portion and described a pair of hip side thin slice of described batt structure body, described partition fin can erect in the mode of leaving upward from described each hip side thin slice respectively under the state that shrinks.
6. as the article of claim 5 record, it is characterized in that the narrowest position in described disengaged zone that comprises the described hip side thin slice of described free edge portion is stretched out to the direction of described transverse axis and is of a size of 10～50mm.
7. as the article of claim 1 record, it is characterized in that, when observing from the front of described front waist region, described leg opening is triangular in shape respectively, this triangle is by the below ora terminalis to the described front waist region of the linearly extension of direction of described transverse axis, the lateral margin that is the described crotch area of concave shape extension to the direction of the described longitudinal axis, and below described between ora terminalis and the described lateral margin obliquely the described rear waist region of linearly extension below lateral margin form, the part with described base lamina of described wrinkle pleat is exposed from each leg opening triangular in shape.
8. as the article of claim 2 record, it is characterized in that described chassis is processed into, with the zone of the described first and second outer dress thin slices of the lumbar region, described front and back of the area coincidence of described core in, lose elastic extension along the direction of described transverse axis.
9. as the article of claim 1 record, it is characterized in that the sizable liquid-repellency that has at least with the described at least imbibition zone of described batt structure body cuts off thin slice, is positioned at the bottom in described imbibition zone.
10. as the article of claim 1 record, it is characterized in that described chassis comprises the 3rd outer dress thin slice of non-resilient retractility, the described the 3rd outer dress thin slice covers the outside of described crotch area between lumbar region, described front and back.
11. the article as any one record of claim 1～10 is characterized in that, utilize the many closing lines interrupted or that extend continuously of direction along the described longitudinal axis that described first and second outer thin slice of adorning is engaged with described base lamina.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005146338 | 2005-05-19 | ||
| JP2005146338 | 2005-05-19 | ||
| JP2006117166 | 2006-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1895196A CN1895196A (en) | 2007-01-17 |
| CN100490769C true CN100490769C (en) | 2009-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101213886A Active CN100490769C (en) | 2005-05-19 | 2006-05-19 | Pull-on disposable wearing article |
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| Country | Link |
|---|---|
| CN (1) | CN100490769C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050177A (en) * | 2011-10-11 | 2013-04-17 | 东特涂料股份有限公司 | Electrically insulated wire having multi-layered coating |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5530252B2 (en) * | 2010-05-20 | 2014-06-25 | ユニ・チャーム株式会社 | Disposable wearing items |
| US9226858B2 (en) * | 2012-06-29 | 2016-01-05 | The Procter & Gamble Company | Apparatus and method for making a layered elastic substrate |
| US10376428B2 (en) * | 2015-01-16 | 2019-08-13 | The Procter & Gamble Company | Absorbent pant with advantageously channeled absorbent core structure and bulge-reducing features |
| JP6697011B2 (en) * | 2017-04-21 | 2020-05-20 | ユニ・チャーム株式会社 | Absorbent article manufacturing method |
| JP7089985B2 (en) * | 2018-08-14 | 2022-06-23 | ユニ・チャーム株式会社 | Disposable diapers |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476458A (en) * | 1993-12-22 | 1995-12-19 | Kimberly-Clark Corporation | Liquid-retaining absorbent garment and method of manufacture |
| EP0873738A2 (en) * | 1997-04-21 | 1998-10-28 | Kao Corporation | Disposable absorbent article |
| EP1080708A2 (en) * | 1999-08-30 | 2001-03-07 | Uni-Charm Corporation | Disposable garment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476458A (en) * | 1993-12-22 | 1995-12-19 | Kimberly-Clark Corporation | Liquid-retaining absorbent garment and method of manufacture |
| EP0873738A2 (en) * | 1997-04-21 | 1998-10-28 | Kao Corporation | Disposable absorbent article |
| EP1080708A2 (en) * | 1999-08-30 | 2001-03-07 | Uni-Charm Corporation | Disposable garment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050177A (en) * | 2011-10-11 | 2013-04-17 | 东特涂料股份有限公司 | Electrically insulated wire having multi-layered coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1895196A (en) | 2007-01-17 |
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