CN104507435B

CN104507435B - Disposable diaper

Info

Publication number: CN104507435B
Application number: CN201480001886.XA
Authority: CN
Inventors: 矶贝友美; 三宅真纪
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2014-07-25
Filing date: 2014-11-12
Publication date: 2016-08-31
Anticipated expiration: 2034-11-12
Also published as: BR112016029569A2; CN104507435A; TW201536262A; WO2015046631A1; TWI517841B; MY157383A; JP5740520B1; KR101560996B1; AU2014280930B1; PH12016502364A1; SG11201408640RA; KR20150063965A; PH12016502364B1; SA115360202B1; JP2016029977A

Abstract

nullA kind of disposable diaper，It is deploying type，And there is length direction intersected with each other and width，And from the side of described length direction, it is configured with the first waist portion、Crotch and the second waist portion，Wherein，This disposable diaper has absorber core and a pair fixing band extended outside the two of described width from described first waist portion，When being alignd in the both ends on the described length direction of described disposable diaper，Position on the described length direction in described second waist portion of the end by described crotch side on described length direction of described fixing band has the abutting end of described fixing band，Described absorber core both ends on described width have at least one pair of notch part，On described length direction，The narrowest position of width in the position being sandwiched between the pair of notch part of described absorber core is positioned at following region: this region is in the region between the product center at the center as described disposable diaper and described abutting end、Region between the center and described abutting end in this region.

Description

Disposable diaper

Technical field

The present invention relates to flat type disposable diaper.

Background technology

Traditionally, flat type disposable diaper has the absorption between liquid-permeable sheet and opaque liquid sheet Body, and by by from covering the waist portion of drosal part of wearer to extended outside width two It is joined to fixing band cover the waist portion in the veutro portion of wearer and be fixed to wearer.Additionally, propose End on the width that flat shape is hourglass shape, i.e. absorber of a kind of absorber is to width In being convexly curved and make the width of absorber inside direction on the length direction of disposable diaper Disposable diaper the narrowest at the heart.(such as seeing patent documentation 1).

Prior art literature

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 2002-253608 publication

Summary of the invention

The problem that invention is to be solved

In above-mentioned patent documentation 1, the absorber of explanation is relatively large and is in extended state readily along lower limb The root of the lower limb of the baby of recumbency.But, baby relatively small during birth takes the posture in parent, That is, the lower limb of baby pull-up in the way of two knees contact with abdominal part forms M shape so that the root position of lower limb In abdominal part.Therefore, on the length direction of disposable diaper as in above-mentioned patent documentation 1 The absorber that center is the narrowest, it is difficult to along the root of the lower limb of the baby that posture is posture in parent Portion.As a result, high rigidity absorber to wearer with constriction, and disposable diaper and wearer it Between generation gap makes Excreta may leakage.

Making the present invention in view of the above problems, it is an object of the invention to provide can be readily along using mother The flat type disposable diaper of the health of the baby of the posture in body.

For solving the scheme of problem

In order to solve problem above, the main aspect of the present invention is a kind of dress for manufacturing disposable diaper Putting, described disposable diaper is deploying type, and has length direction intersected with each other and width, and The first waist portion, crotch and the second waist portion it is configured with from the side of described length direction, wherein, This disposable diaper has absorber core and from described first waist portion outside the two of described width Are being alignd in both ends on the described length direction of described disposable diaper by a pair fixing band extended Time, in the end by described crotch side on described length direction of described fixing band at described second waist The position on described length direction in body portion has the abutting end of described fixing band, described absorber core Both ends on described width have at least one pair of notch part, on described length direction, described The narrowest position of width in the position being sandwiched between the pair of notch part of absorber core be positioned at as Lower region: this region is between the product center at the center as described disposable diaper and described abutting end Region in, region between the center and described abutting end in this region.

According to this specification explanation referring to the drawings, other features of the present invention will be clear from.

The effect of invention

According to the present invention, it is provided that a kind of can be readily along the body of the baby using posture in parent The flat type disposable diaper of body.

Accompanying drawing explanation

Fig. 1 is in the general view of wearer's skin side of the diaper of expansion and elongation state.

Fig. 2 A, Fig. 2 B are the sectional view that the line A-A along Fig. 1 of diaper, line B-B intercept respectively.

Fig. 3 A is the explanatory diagram that body weight is more than the baby of 3000 grams, and Fig. 3 B is the posture of SFD Explanatory diagram, Fig. 3 C is the explanatory diagram of the posture of SFD.

Fig. 4 is the explanatory diagram of the position illustrating the veutro notch part arranging absorber core.

Fig. 5 is the explanatory diagram of the position illustrating the veutro notch part arranging absorber core.

Fig. 6 is the table illustrating the evaluation test result when shifting the position of veutro notch part along its length Lattice.

Fig. 7 A is the approximate three-dimensional map of diaper, and Fig. 7 B is shape and the dorsal part notch part of veutro notch part The explanatory diagram of shape.

Fig. 8 is the general view of the diaper of modified example.

Fig. 9 is the general view of the diaper of modified example.

Detailed description of the invention

According to the explanation of this specification reference schematic figures, following item will be clear from.

The disposable diaper of deploying type is characterised by, has length direction intersected with each other and width side To, and from the side of described length direction, it is configured with the first waist portion, crotch and the second waist portion, This disposable diaper has absorber core and from described first waist portion outside the two of described width A pair fixing band extended, described second waist portion has the abutting end of described fixing band, described abutting end By on the described length direction of described disposable diaper both ends align time, described fixing band The position on the described length direction by the end of described crotch side on described length direction, described absorption Body core both ends on described width have a pair notch part, and described absorber core is at ratio described The position that notch part leans on the described side of described length direction has another to notch part, in described length On direction, the width in the position being sandwiched between the pair of notch part of described absorber core is the narrowest Position is positioned at following region: this region is that the product center at the center as described disposable diaper is with described Region in region between abutting end, between the center and described abutting end in this region, in institute State on length direction, described absorber core be sandwiched in described another to the width in the position between notch part Spend the narrowest position and be positioned at following region: this region is the product at the center being used for described disposable diaper Center is by the region of the opposite side contrary with described side.

According to this disposable diaper, it is possible to by the notch part (narrow of absorber core) of absorber core, That is, the high position of deformation degree of freedom of absorber core arranges the wearer taking the posture in parent The position at lower limb place so that absorber core is readily along the lower limb of wearer.Therefore, absorber core has been relaxed Compressing to wearer so that be difficult to produce gap between disposable diaper and wearer, therefore, it is possible to Control excremental leakage.

Described disposable diaper is characterised by, described second waist portion has for described crotch A pair side flap extended outside the two of described width, on described length direction, described absorption The narrowest position of width in the position being sandwiched between the pair of notch part of body core is positioned at following district Territory: this region is outermost on described width than described product center and described side flap The center by the region between the end of the described side of described length direction in end, by described another The region of side.

According to this disposable diaper, absorber core can being thus lifted near flank readily along wearer The lower limb of the position of sheet.

Described disposable diaper is characterised by, on described length direction, and being pressed from both sides of described absorber core The narrowest position of the width in position between the pair of notch part is positioned at following region: this region is Than the region between the end by described opposite side of described product center and described absorber core center, Region by described opposite side.According to this disposable diaper, absorber core can be readily along wearer's It is thus lifted to the lower limb of the position of the end of the opposite side near absorber core.

Described disposable diaper is characterised by, by described disposable diaper on described length direction Length as the first length, and by from described disposable diaper by described in described length direction another The width in the position being sandwiched between the pair of notch part of described absorber core is played in the end of side The narrowest position by till the end of the described opposite side of described length direction, at described length direction On length as the second length in the case of, described second length is relative to shared by described first length Ratio is more than 22% and less than 26%.

According to this disposable diaper, absorber core can be readily along the dress of the posture taked in parent The lower limb of person.

Described disposable diaper is characterised by, described absorber core is leaning on described than the pair of notch part The position of the described side of length direction has another to notch part.

According to this disposable diaper, it is possible to by the position between two pairs of notch parts of absorber core, i.e. The high position of degree of freedom that deforms of absorber core arranges the crotch of the wearer taking the posture in parent Portion, enabling the crotch being relaxed wearer by the deformation of absorber core strangles power (fastening force). Additionally, each pair of notch part becomes the basic point folding disposable diaper along its length, therefore disposable diaper The 3D shape of the health of wearer can be formed along.

Described disposable diaper is characterised by, described absorber core be sandwiched in described another to notch part Between position in the narrowest position of width be positioned at following region: this region be from described product center to To the described opposite side of the described length direction distance away from this product center be described disposable diaper The region of the extension position of 10% of the length on described length direction.

According to this disposable diaper, another pair gap portions is in the wearer of the posture taked in parent The position of dorsal part of root of lower limb, therefore disposable diaper can be formed along taking in parent The 3D shape of the health of the wearer of posture.

Described disposable diaper is characterised by, the both ends on described width, at least can be provided with Enough from the pair of notch part play described another to till notch part on described length direction In the range of along the flexible retractility component of described length direction, the shape of described notch part is as follows: by described The length on described length direction at the position in the outside of width is longer than by described width The length on described length direction at the position of inner side, and the position on described length direction at top Between the both ends on described length direction in the end in the outside being positioned against described width.

According to this disposable diaper, the gauffer along width is respectively formed between each pair of notch part, Therefore disposable diaper can be more easily formed as the wearer's along the posture taked in parent The 3D shape of health.

Described disposable diaper is characterised by, under the naturalness of described disposable diaper, described Prolong along described width being respectively formed with between notch part with described another between a pair notch part The gauffer stretched.

According to this disposable diaper, disposable diaper can be more easily formed into along posture at parent In the 3D shape of health of wearer of posture, by disposable diaper through with SFD Aid can be by naked eyes confirmation gauffer by disposable diaper through the posture taked in parent With baby.

Described disposable diaper is characterised by, the pair of notch part of described absorber core with described separately The width of the part between a pair notch part and the pair of notch part of ratio of described absorber core are by described The width of the part of the described opposite side of length direction is equal.

According to this disposable diaper, it is possible to make the dress along the posture taked in parent of the absorber core Excremental amount is guaranteed in the case of the lower limb of person.

The general structure of===disposable diaper===

The disposable diaper of present embodiment is applicable to the baby that body weight is 3000 grams or less in particular The flat type disposable diaper of (hereinafter referred to as SFD).Specifically, diaper is applicable to body Be heavily LBWI, the body weight of 2500 grams or less be the extremely low birth weight of 1500 grams or less Baby and the ULBW baby that body weight is 1000 grams or less.

Fig. 1 is in the general plan of wearer's skin side (inner side) of the diaper 1 of expansion and elongation state Figure, Fig. 2 A and Fig. 2 B is the sectional view that line A-A and line B-B respectively along Fig. 1 intercept.Diaper 1 includes Length direction, width and the thickness direction of (being orthogonal in the present embodiment) intersected with each other, the One waist portion 1a, crotch 1b and the second waist portion 1c configure from side at length direction.Usually, diaper 1 so that the drosal part of the first waist portion 1a covering wearer and the second waist portion 1c cover wearer's The mode in veutro portion is worn, but, diaper 1 can be to be worn in the opposite manner.

As shown in Figure 2 A and 2 B, diaper 1 include being positioned at liquid permeable top sheet 2 and opaque liquid back side film 3 it Between absorber 4.Absorber 4 extends to the second waist portion 1c along its length from the first waist portion 1a, inhales Acceptor 4 includes by absorbing and keeping excremental absorbent material (such as, to pulverize pulp and high-absorbable Polymer) (such as, the absorber core 41 that is configured to and the liquid permeability covering absorber core 41 cover material 42 Cotton paper sheets and spun-bonded non-woven fabrics).Additionally, form exterior outer load 5 (such as, the nothing of whole diaper 1 Spin cloth) it is arranged on the non-skin side of back side film 3.Note, although not shown, but, in order to improve waist The comfortableness of body, can arrange the retractility that can stretch on the width of the such as first waist portion 1a Component (such as, telescopic sheet component and wire retractility component).

As it is shown in figure 1, the flat shape of absorber 4 (covering material 42) is rectangle.Meanwhile, absorb Body core 41 has the most contracted position, the both ends on width, and absorber core 41 is shrinking position (i.e. a pair big notch part) includes a pair chevron veutro notch part 43 and a pair chevron dorsal part notch part 44. Veutro notch part 43 and dorsal part notch part 44 are the districts that there is not the absorbent material constituting absorber core 41 Territory.A pair veutro notch part 43 is formed as arranging in the direction of the width at same position in the longitudinal direction Row, a pair dorsal part notch part 44 is positioned at the side (dorsal part) of length direction relative to a pair veutro notch part 43 And be formed as arranging in the direction of the width at same position in the longitudinal direction.In other words, absorber Core 41 has shape symmetrical in the direction of the width.Noting, veutro notch part 43 and dorsal part notch part 44 exist The degree of depth on width is the most roughly the same, but, the two in the direction of the width deep Degree can be different.

First waist portion 1a includes a pair dorsal part flank extended outside two of the width to crotch 1b Sheet 13, the second waist portion 1c also includes a pair veutro side extended outside two of the width to crotch 1b Fin 14 (side flap).Each side flap 13,14 be formed be discussed below overlap in back side film 3 vertical Body rivel sheet 21.A pair fixing band 10 from a pair dorsal part side flap 13 (the first waist portion 1a) to width side To two outside extend.

Fixing band 10 includes base material 11 and hook tabs 12, and hook tabs 12 is arranged on the flesh on the thickness direction of base material 11 Skin side surface.When hook tabs 12 folds into the second 1c side, waist portion, outside hook tabs 12 and the second waist portion 1c Load 5 (non-skin side surface) is relative, thus engages with outer load 5.To this end, hook tabs 12 is (such as, The sheet of public material including face type fixture) it is constructed to be permeable to connect with outer load 5 (such as, non-woven fabrics) Merge and can separate with outer load 5.Noting, structure is not limited to directly hook tabs 12 be bonded to outer load 5, For example, it is possible to by the engageable target patch that can engage for hook tabs 12 (such as, including generatrix type fixture Sheet) arrange to outer load 5, so that hook tabs 12 is joined to target patch.

When diaper 1 is through with wearer, first against wearer's folded diaper 1 along its length it After, by a pair dorsal part side flap 13 to the folded inside of width, then a pair fixing band 10 is engaged Outer load 5 to the second waist portion 1c.Result defines waist peristome and pair of leg encloses peristome.

Additionally, the lower limb that the both ends on the width of diaper 1 are provided with stretching along its length encloses Retractility component 6.Lower limb enclose retractility component 6 be fixed on when extending along its length top flat 2 or Between three-dimensional rivel sheet 21 and back side film 3.Therefore, diaper 1 in the raw has contraction with at lower limb Enclose the circumference of opening to form the lower limb that the lower limb of applicable wearer encloses and enclose the lower limb of rivel and enclose retractility component 6.

Noting, in the present embodiment, lower limb encloses retractility component 6 and uses wire retractility component (such as, Wire polyurethane elastic fibre and wire natural rubber), each end on the width of diaper 1 has Two lower limbs configured in the direction of the width enclose retractility component 6, but lower limb encloses the quantity of retractility component 6 not It is limited to this.Telescopic sheet component can be used (such as, by melted additionally, lower limb encloses retractility component 6 Thermoplastic elastomer resin and make form membrane retractility film or by elastic fibre make flexible Property non-woven fabrics).

Additionally, a pair three-dimensional rivel 20 erected in skin side (wearer side) is arranged on the loose of diaper 1 Both ends on degree direction.Each three-dimensional rivel 20 includes three-dimensional rivel sheet 21 and three-dimensional rivel retractility structure Part 22.As shown in Figure 2 A and 2 B, the outboard end on the width of three-dimensional rivel sheet 21 and outer load 5 Align in portion.But, the end of the inner side being positioned on width of three-dimensional rivel sheet 21 is towards top flat 2 side (non-skin side) folds, thus between the three-dimensional rivel sheet 21 becoming two-layer, three-dimensional rivel is with flexible Property component 22 (in the present embodiment for single wire retractility component) at the shape extended along its length Fixed under state.Although additionally, not shown, but the both ends on the length direction of three-dimensional rivel sheet 21 It is connected to top flat 2 by bonding agent etc..Be positioned on engaged length direction the two of three-dimensional rivel sheet 21 The first end that the position in the outside on the width of end is alongst gone up is to the other end Being joined to top flat 2, junction surface (base end part) becomes owing to three-dimensional rivel retractility component 22 shrinks The basic point of the three-dimensional rivel sheet 21 erected.

Additionally, the diaper 1 of present embodiment is for SFD.It is therefore desirable for when product is in Except the state of elongation in the case of gauffer time, be specifically in diaper 1 for elongation until constituting diaper 1 The size of component (such as, outer load 5) and the consistent size of monomer members or the chi close to monomer members During very little state, product size takes values below or smaller value.Expect to extend along its length when product is in State time, the product length of length direction is 210 to the scopes of 330mm, specifically, for body weight The product length of the product for baby less than 2500 grams is 310mm, for the body weight baby less than 1500 grams It is 270mm with the product length of product, for the product length of the body weight product for baby less than 1000 grams For 230mm.Expect the waist size (girth of the waist opening) scope at 160 to 295mm, specifically Ground is for the waist a size of 273.5mm of the body weight product for baby less than 2500 grams, little for body weight Waist a size of 220mm in the products for baby of 1500 grams.Note, when the width at a fixing band 10 Root side end pair on the width of the hook tabs 12 that the top on degree direction includes with another fixing band 10 When neat state is arranged with waist retractility component, waist size is that product is in elongation in the width direction State under size.

The distinctive problem of===SFD===

Fig. 3 A is the explanatory diagram that body weight is more than the baby of 3000 grams, and Fig. 3 B and 3C is the baby with under-weight The explanatory diagram of the posture of youngster.

Such as, as shown in Figure 3A, the body weight baby more than 3000 grams often takes lower limb (thigh) 7 to be in The posture of extended configuration.Therefore, the central part on the length direction of diaper 1 (hatched example areas in figure) It is clipped between the lower limb 7 (crotch) of baby.It is thus possible, for instance by by the width of absorber core End bends to inside side and highlights, i.e. widens absorber core at the first waist portion 1a and the second waist portion 1c Width and make the width at absorber core center in the longitudinal direction be on the length direction of diaper Central part is the narrowest, then absorber core can be made more than the root of the lower limb 7 of the baby of 3000 grams along body weight.

Meanwhile, such as, for stably breathing etc., as shown in Fig. 3 B and Fig. 3 C, body weight is 3000 grams Or the posture that less SFD is when often taking baby in parent, in other words, take lower limb 7 in Hereinafter, M shape is opened so that two knees all contact the posture (being referred to as positioning posture) of abdominal part.Therefore, The region (hatched example areas in figure) of the veutro of the central part being positioned on the length direction of diaper 1, in other words, The the second waist portion 1c covering abdominal part is sandwiched between lower limb 7.

Due to this situation, it is adaptable to the preceding diaper of the posture of the body weight baby more than 3000 grams (that is, makes The width width of the second waist portion 1c of absorber core and make absorber core center in the longitudinal direction The diaper that width is the narrowest) when being through with the SFD taking to position posture, absorber core may not Root along lower limb 7.The part that the width at the second waist portion 1c of absorber core is wide may be clipped in lower limb 7 Between.Therefore, high rigidity absorber core may oppress the lower limb of wearer, or absorber core may bend, To produce gap between disposable diaper and wearer, Excreta is easily leaked.Additionally, there are The most possible: the part that rigidity is low that causes owing to having notch part of absorber core may arrive wearer The center of crotch, i.e. arrive crotch and strangle the position at the strong position of power so that inhale the most in this case Acceptor core may easily distort.

In this case, the purpose of present embodiment is to provide readily along the under-weight taking to position posture The diaper 1 of the health of baby.

===absorber core===

Fig. 4 and Fig. 5 is the explanatory diagram of the position of the veutro notch part 43 illustrating and being arranged at absorber core 41.Figure 6 is the form illustrating the evaluation test result when the position of veutro notch part 43 shifts along its length. Fig. 7 A is the approximate three-dimensional map of diaper 1, and Fig. 7 B is veutro notch part 43 and the shape of dorsal part notch part 44 Explanatory diagram.

Due to both ends 1A, 1B of being configured with on the length direction of diaper 1 and fixing band 10 abreast to The folded inside of width, so fixing band 10 (hook tabs 12) is usually bonded to the second waist portion 1c's Around the position relative with fixing band 10.Therefore, in the present embodiment, in the length of alignment diaper 1 When spending the both ends 1A on direction and 1B, by the central side of the length direction of fixing band 10 (hook tabs 12) Position (position in Fig. 4) on the length direction at end 10a (12a) of (crotch 1b) It is set as the fixing band 10 abutting end 1c1 in the second waist portion 1c.In other words, when the length from diaper 1 The end 1A of the side in direction to the end 10a of the central side of the length direction of fixing band 10 (hook tabs 12) (12a) when the length on length direction is set as L3, from the end of the opposite side of the length direction of diaper 1 Portion 1B becomes the abutting end of fixing band 10 towards the position that distance is length L3 of the central side of length direction 1c1。

The center of length direction of end 10a and hook tabs 12 of central side when the length direction of fixing band 10 When the end 12a of side is inconsistent, the position of the end 12a of the central side of the length direction of hook tabs 12 is set to Abutting end 1c1.Additionally, the shape of hook tabs 12 (fixing band 10) is not limited to rectangular shape, such as, Can be trapezoidal etc..In this case, the end 12a of the central side of the length direction of hook tabs 12 relative to Width tilts.Therefore, by the length direction of the end 12a of the central side of the length direction of hook tabs 12 The position of outermost part be set to abutting end 1c1.

As shown in Figure 4, at product center (the position b) at the center of the length direction being positioned at as diaper 1 And abutting end 1c1 (the first area A1 between a) of position, the diaper 1 of present embodiment has and is being positioned at Center (position c) and abutting end 1c1 (second between a) of position of the length direction of first area A1 The top 43a of the veutro notch part 43 of region A2.

In other words, a pair veutro notch part 43 the narrowest position of the part clipped of absorber core 41 (hatched example areas in Fig. 7 B) is positioned at second area A2.Note, in the present embodiment, a pair abdomen Align in the longitudinal direction in the position of each top 43a of side notch part 43, but, they can shift. In this case, a pair veutro notch part 43 position clipped of absorber core 41 is absorber core 41 It is positioned at the part in following region: the both ends on this region, the length direction of a veutro notch part 43 The scope on length direction at 43b, 43c (see Fig. 7 B) and the length of another veutro notch part 43 The overlapping ranges on the length direction at both ends 43b, 43c on degree direction.

In the present embodiment the veutro notch part 43 of diaper 1 in the above described manner with product center (position b) Compare the abutting end 1c1 near fixing band 10.Diaper 1 mainly utilizes fixing band 10 (hook tabs 12) to be fixed to Wearer.Therefore the root positioning the lower limb of the wearer of posture is taked to be promoted to the joint near fixing band 10 The position of end 1c1.Therefore, by veutro notch part 43 being arranged the abutting end 1c1 near fixing band 10 Second area A2, veutro notch part 43 can arrange the root of lower limb taking to position the wearer of posture Position.

Absorber core 41 has narrow width around veutro notch part 43, and due to other parts Phase specific rigidity is low, thus the most soft.To this end, take to position appearance by being arranged by veutro notch part 43 The position of the root of the lower limb of the wearer of gesture, absorber core 41 can be readily along the root of the lower limb of wearer Portion.It therefore reduces the compressing that absorber core 41 is to the lower limb of wearer so that wearer easily takes fixed Pose gesture.In other words, the diaper 1 utilizing fixing band 10 to be fixed to wearer can utilize veutro notch part The power that the deformation of 43 relaxes by making great efforts to take the lower limb positioning posture to apply (attempts to push diaper 1 to veutro Power), thus reduce the compressing to wearer.Therefore, it is possible to improve comfortableness when wearing diaper 1, and And the edema of wearer can be suppressed.Additionally, due in the case of the distortion inhibiting diaper 1 diaper 1 And between wearer, be less likely to produce gap, it is possible to suppress excremental leakage.

But, if the top 43a of veutro notch part 43 is arranged on the length of the abutting end 1c1 of fixing band 10 The opposite side (veutro) in direction, then the very possible bonding station at fixing band 10 is due to veutro notch part 43 and produce the difference in height (thickness difference) of absorber core 41.In this case, the engaging force of fixing band 10 May weaken, or fixing band 10 is likely to be due to absorber core 41 in the deformed around of veutro notch part 43 It is easily peeled off.But, the top 43a of veutro notch part 43 is arranged fixing by the diaper 1 of present embodiment The side of the length direction of the abutting end 1c1 with 10 so that can be by the case of not producing difference in height Fixing band 10 is joined to the position that the rigidity of absorber core 41 is high.Therefore, it is possible to be securely engaged fixing band 10, this prevent fixing band 10 and peel off due to the deformation of absorber core 41.

Additionally, diaper 1 is had the portion between veutro side flap 14 and dorsal part side flap 13 when wearing The leg-openings portion that position produces.Therefore, particularly in the second waist portion 1c, it is not bonded to fixing band 10 The position of (hook tabs 12), takes the root positioning the lower limb of the wearer of posture can be readily accessible to veutro The end of the side (central side) of the length direction of the outermost side 14a of the width of side flap 14 ( Hereinafter, referred to veutro flank bit end 141 (position d)), thus it is promoted near veutro flank bit end 141 Position.

Therefore, the diaper 1 of present embodiment by the top 43a of veutro notch part 43 (absorber core 41 by The narrowest position in the position that a pair notch part clips) arrange to the product center (position being positioned at diaper 1 Put b) and the veutro flank bit end 141 (center (length of position e) of the 3rd region A3 between the d) of position The region of the opposite side in degree direction, in other words, arranges to center (the position e) being positioned at the 3rd region A3 With abutting end 1c1 (is close to veutro in the 4th region A4 between a) of position and in second area A2 Region.Therefore, absorber core 41 is readily along being promoted to the position near veutro flank bit end 141 The lower limb of wearer.Additionally, the position energy of the close veutro flank bit end 141 of diaper 1 (absorber core) The deformation enough utilizing veutro notch part 43 relaxes the power applied by the lower limb of wearer and (makes great efforts to make diaper 1 to abdomen The power of side displacement), it is possible to reduce the compressing to wearer.

Additionally, diaper 1 is by the end 41a by the opposite side (veutro) of the length direction of absorber core 41 Touch the abdominal part of wearer and be fixed to wearer.Therefore, not particularly being bonded to of the second waist portion 1c The position of fixing band 10 (hook tabs 12) makes to take the root of the lower limb of the wearer of location posture to rise to and leans on The position of the end 41a of the opposite side of the length direction of nearly absorber core 41.

Therefore, the diaper 1 of present embodiment by the top 43a of veutro notch part 43 (absorber core 41 by The narrowest position in the position that a pair notch part clips) arrange to the product center (position being positioned at diaper 1 Put b) and absorber core 41 length direction opposite side end 41a between the center of the 5th region A5 (region of the opposite side of the length direction of position g) in other words, is arranged to being positioned at the 5th region A5's (position g) and abutting end 1c1 is (in the 6th region A6 between a) of position and at second area at center A2 is close to the region of veutro.Therefore, absorber core 41 is more easily along being thus lifted near absorber core The lower limb of the wearer of the position of the end 41a of the opposite side of the length direction of 41.Additionally, diaper 1 (absorbs Body core) the position of end 41a of opposite side of length direction of close absorber core 41 can pass through abdomen The power that the deformation of side notch part 43 and relaxing is applied by the lower limb of wearer (makes great efforts to make diaper 1 ventralward shift Power), it is possible to reduce compressing to wearer.

Additionally, as it is shown in figure 5, the length (product length) on the length direction of diaper 1 is set to the first length Degree L1, from the end 1B of the opposite side of the length direction of diaper 1 length to the top 43a of veutro notch part 43 Degree is set to the second length L2.As shown in Figure 6, the second length L2 and the first length L1 are changed in every way Ratio (L2/L1 × 100), be evaluated test.In other words, by using the value shown in Fig. 6 as second The diaper 1 of the ratio of length L2 and the first length L1 is actual is through the SFD body taking to position posture On, carry out the test of the comfortableness of diaper 1, and by the comfortableness of visual assessment diaper 1.When comfortable Property good time, such as around the lower limb that absorber core 41 does not apply compressing and wearer to the lower limb of wearer Absorber core 41 when not distorting, or when not producing gap between diaper 1 and wearer, evaluate knot Fruit is set as " O ", and on the contrary when comfortableness is bad, evaluation result is set as "×".

As a result, as shown in Figure 6, when the ratio of the second length L2 and the first length L1 be 22%, 24% and When 26%, evaluation result illustrates good comfortableness.Therefore, in the diaper 1 of present embodiment, abdomen The top 43a of side notch part 43 (the narrowest in the position clipped by a pair notch part of absorber core 41 Position) arrange the ratio of the second length L2 and the first length L1 be more than 22% and less than 26% and In second area A2, relative to product center, (position b) is near the position of the abutting end 1c1 of fixing band 10. Therefore, absorber core 41 is readily along taking to position the lower limb of the wearer of posture, therefore, it is possible to improve diaper The comfortableness of 1.

Additionally, in the diaper 1 of present embodiment, absorber core 41 is except including a pair veutro notch part Outside 43 (a pair notch part), absorber core 41 also includes that (another pair lacks a pair dorsal part notch part 44 Oral area).Therefore, it is possible at absorber core 41 between veutro notch part 43 and dorsal part notch part 44 Position, i.e. can be clipped in, at absorber core 41, the lower limb (crotch) of wearer taking to position posture Between position, increase deformation degree of freedom.Therefore, the deformation of absorber core 41 is utilized, it is possible to relax and adopt Take the grip force of the crotch of the wearer of location posture, therefore, it is possible to reduce the compressing (repulsive force) to wearer To improve comfortableness.

Especially, at the side of length direction of a pair veutro notch part 43 and a pair dorsal part notch part 44 Between the opposite side of length direction, on the width of the absorber core 41 of the diaper 1 of present embodiment Both ends are by prominent in the way of being convexly curved inside width.As a result, absorber core 41 can hold Easily along taking to position the root of the lower limb of the wearer of posture.

The position of the surrounding of a pair veutro notch part 43 of absorber core 41 and a pair back of the body of absorber core 41 The position of the surrounding of side notch part 44 has low rigidity, and becomes the base of folded diaper 1 along its length Point.Therefore, as shown in Figure 7 A, the diaper 1 (absorber core 41) of present embodiment can easy landform Become the 3D shape of the health along wearer.In other words, it is possible to be easily achieved and be positioned at a pair veutro The position of the veutro of notch part 43 erects with the position of the dorsal part being positioned at a pair dorsal part notch part 44 and inhales The position between a pair veutro notch part 43 and a pair dorsal part notch part 44 of acceptor core 41 is the end of as The shape in portion.As it has been described above, by the top 43a of veutro notch part 43 is arranged opposing product center (position b) is near the second area A2 of the abutting end 1c1 of fixing band 10, it is possible to take to position appearance being positioned at The position folded diaper 1 of the front side of the root of the lower limb of the wearer of gesture.

Meanwhile, as shown in Figure 5, it is preferred that the top 44a of dorsal part notch part 44 be (absorber core 41 The narrowest position being clipped in the position between another pair notch part) it is arranged on from product center (position B) with 10% of length L1 on the length direction of diaper 1 distance L4 (=L1x0.1) to length direction Both sides away from SECTOR-SEVEN territory A7 in, in other words, the substantially center on the length direction of diaper 1. Therefore, it is possible to taking the drosal part positioning the root of the lower limb of the wearer of posture (that is, wearing of lying on the back The buttocks contacted with ground of the person of wearing and when taking to position posture lower limb start the portion between the position promoted Position) folded diaper 1.

Therefore, it is possible to dimensionally form diaper 1, thus along taking to position the health of the wearer of posture. It is therefore prevented that diaper 1 is to force tractive to wear diaper 1, therefore, it is possible to subtract in the way of the posture of location The compressing to wearer of the little diaper 1, with improve wear diaper 1 time comfortableness and suppress wearer float Swollen.Additionally, unlikely generation gap between diaper 1 and wearer, enabling control excremental Leakage.But, it being not limited to the above, dorsal part notch part 44 can be arranged from product center with product Distance L4 of the 10% of length L1 to the both sides of length direction away from region, can be not provided with dorsal part lack Only veutro notch part 43 is arranged absorber core 41 in the case of oral area 44.

Additionally, as the diaper 1 of present embodiment, at least from a pair veutro notch part 43 (Fig. 7 B In the end 43b of opposite side of length direction) to a pair dorsal part notch part 44 (side of length direction End 44c) length direction on scope in, when lower limb flexible along its length encloses retractility component, That is, lower limb encloses the two ends that retractility component 6 arranges on width with three-dimensional rivel retractility component 22 During portion, utilizing the contractility of retractility component, diaper 1 bends along its length and skin side surface is become For inner side.Therefore, diaper 1 can become spherical by dimensional topography, thus readily along taking to position posture Wearer.Note, be typically due to the end of retractility component fixing and will not under elongation state Contribute to retractility, so Fig. 1 only illustrates the position contributing to retractility of retractility component.Favourable It is: retractility component contributes to the position of retractility and lacks throughout from a pair veutro notch part 43 to a pair dorsal part Region more than scope on the length direction of oral area 44 and exist.But, it being not limited to this, diaper 1 can To include that lower limb encloses only one side in retractility component 6 and three-dimensional rivel retractility component 22, or diaper 1 The retractility component stretched along its length can not be included.

Additionally, in the diaper 1 of present embodiment, the shape of veutro notch part 43 and dorsal part notch part 44 Be shaped as chevron.In other words, as shown in Figure 7 B, it is shaped as so that in notch part 43,44, width Length on the length direction at the position in the outside in direction is more than the length at the position of the inner side of width Length on direction, the position in the longitudinal direction of top 43a, 44a is positioned at the outside of width In both ends on the length direction of end 431 and 441 (between end 43b and end 43c and end Between portion 44b and end 44c).

Therefore, notch part 43,44 encloses retractility component 6 and three-dimensional rivel retractility component 22 due to lower limb Contraction and shrink in the width direction so that notch part 43,44 is pinched shape (pinched form).As a result, as shown in Figure 7 A, formed along width between a pair veutro notch part 43 Gauffer 45, forms the gauffer 46 along width between a pair dorsal part notch part 44.Specifically, the phase Position on the length direction of top 43a, 44a of prestige notch part 43,44 is arranged on notch part 43,44 Central part (the end 43b at the both ends on the length direction of the end 431,441 in the outside of width And the central part between central part, end 44b and end 44c between the 43c of end).In such manner, it is possible to The mode connecting a pair veutro notch part 43 and a pair dorsal part notch part 44 respectively forms neat (neat) Gauffer 44,45.But, the shape of notch part 43,44 is not limited to the above.

Utilize the diaper 1 being formed with aforementioned gauffer 45,46 in the raw time, enabling with wrinkle Pleat 45,46 is as basic point folded diaper 1, therefore, it is possible to the most dimensionally form diaper 1 with fixed along taking The health of the wearer of pose gesture.Additionally, wear the aid of diaper 1 to SFD can pass through meat Eye confirms gauffer 45,46, thus realizing diaper 1 is the shape readily along location posture, therefore, it is possible to Diaper 1 is put in the way of the posture of applicable location.But, it is not limited to this, diaper 1 in the raw Need not form gauffer 45,46.

Noting, present embodiment supposes that absorber core 41 is not deposited at veutro notch part 43 and dorsal part notch part 44 Fully opening in the case of being configured to any absorbent material of absorber core 41, but, it is not limited to This.Notch part can be set to the weight of the unit are of absorbent material and be in a ratio of relatively low with peripheral region Position (such as, the weight of unit are and peripheral region are in a ratio of the position of 50% or less).Equally In this case, degree of freedom is deformed owing to the rigidity at the surrounding position of notch part is low high, it is possible to make Diaper 1 (absorber core 41) is along taking to position the wearer of posture.

===modified example===

Fig. 8 and Fig. 9 is the general view of the diaper 1 of modified example.In the foregoing embodiment, chevron The dorsal part notch part 44 of veutro notch part 43 and chevron arranges narrow (the big breach of absorber core 41 Portion), but, it is not limited to this.Such as, as shown in Figure 8, absorber core 41 can be provided only with chevron The dorsal part notch part 44 of veutro notch part 43 and chevron.In other words, so that at a pair veutro notch part The width of the absorber core 41 between 43 and a pair dorsal part notch part 44 be positioned at a pair veutro notch part 43 The width of absorber core 41 of opposite side of length direction identical, or with a pair dorsal part notch part 44 The width of the absorber core 41 of the side of length direction is identical.The SFD absorber core of diaper 1 The size of 41 is the least, even if in the position of lower limb according to location posture during difference, and the position that excretion occurs Put and also will not too much change, enabling absorber core veutro notch part 43 and dorsal part notch part 44 it Between do not narrow in the case of guarantee excremental amount, thus control excremental leakage.

Additionally, diaper 1 can also be by the opposite side of the length direction of the abdominal part touching wearer of diaper 1 End 1B be fixed to wearer so that the root of the lower limb of wearer rises to the length side near diaper 1 To the position of end 1B of opposite side.Therefore, the top 43a of veutro notch part 43 can be arranged in place Product center (end 1B (the position h) of the opposite side of the length direction of position b) and diaper 1 in diaper 1 Between the center (opposite side of the length direction of position i), i.e. be arranged in of Section Eight territory A8 Center (position i) and abutting end 1c1 (the 9th region A9 between a) of position of Section Eight territory A8.

Additionally, as shown in Figure 8, the top 43a of veutro notch part 43 can be in the product of relative diaper 1 (position b) arranges abutting end 1c1 institute in the second area A2 of the abutting end 1c1 of fixing band 10 to the heart At position (position a), or arrange to product center position (position b).

It addition, be not limited to the notch part of chevron is arranged absorber core 41, as it is shown in figure 9, can be only A pair notch part 47 (the oblique line portion in figure) with gradual slope extended along its length is set.With Sample is in this case, it is desirable to by having in the position clipped by a pair notch part 47 of absorber core 41 The position of little width W1 arranges opposing product center, and (position b) is near the abutting end 1c1 of fixing band 10 Second area A2.Utilize constructed above, it is possible to make absorber core 41 along the dress taking to position posture The lower limb of person.

It addition, as it is shown in figure 1, diaper can be following scheme 1: for cutting in the first waist portion 1a The line 50 that cuts of the part being fixed with fixing band 10 is formed at the diaper 1 being in deployed condition.Additionally, urine Cloth can be below scheme.

The diaper of scheme 2 is characterised by the basis of the diaper described in scheme 1,

The described line 50 that cuts is respectively formed in width in the way of corresponding with described each fixing band 10 The each position of both sides,

Described cut line 50 be respectively by from the part as waist peristome by than described first waist The described part being fixed with described fixing band 10 of body portion 1a by width inner side position and to work For leg-openings portion part extend path formed.

The diaper of scheme 3 is characterised by the basis of the diaper described in scheme 1 or 2,

The described line 50 that cuts has the multiple through holes run through in a thickness direction, and the plurality of through hole is along institute State and cut the direction arrangement that line 50 is to be extended.

The diaper of scheme 4 is characterised by the basis of the diaper described in scheme 3,

The described line 50 that cuts has: first cuts line part, and it is using from the part as waist peristome The mode extended to the inner side of length direction is formed；And second cut line part, it is positioned at than described All parts that roll off the production line are by the position of the inner sides of length direction and that be positioned on length direction with described fixing band 10 identical positions,

Cut the ratio of unit length on the direction that line 50 is extended described in the length of described through hole is accounted for In the case of rate compares, the described second described ratio cut in line part cuts less than described first Described ratio in line part.

The diaper of scheme 5 is characterised by the basis of the diaper described in scheme 4,

The described line 50 that cuts is cutting line part have by the position of inner side of length direction than described second Along with the progresses inside to length direction gradually to the song of the curved shape of the lateral displacement of width Linear parts, to the length of described through hole relative to the described unit cut on the direction that line 50 is extended In the case of ratio shared by length compares, the described second described ratio cut in line part is less than Described ratio in described curved surface portion.

The diaper of scheme 6 feature on the basis of diaper described in either a program in scheme 1 to 3 exists In,

The described line 50 that cuts has: straight section, and it is edge from the part as described waist peristome Length direction linearly to extend；And the curved surface portion of curved shape, it is positioned at than described straight line Shape part leans on the position of the inner side of length direction and along with the progresses inside to length direction gradually to width The lateral displacement in degree direction.

The diaper of scheme 7 is characterised by the basis of the diaper described in scheme 6,

In the position of the both sides of width, it is provided with for making as described respectively along length direction The lower limb that the part in leg-openings portion is shunk along its length encloses retractility component 6,

Described curved surface portion is being hypothetically divided into the part by described waist peristome side and by described The part of side, leg-openings portion this two-part in the case of, enclose retractility structure at lower limb described in terms of thickness direction During part 6, described lower limb enclose retractility component 6 with in described curved surface portion by described waist peristome side Partial intersection.

The diaper of scheme 8 is characterised by the basis of the diaper described in scheme 6 or 7,

Described diaper has multiple sheets of through-thickness stacking,

The lamination sheets number of described of at least some of place in described curved surface portion is less than described straight line The lamination sheets number of described at shape part.

The diaper of scheme 9 feature on the basis of diaper described in either a program in scheme 6 to 8 exists In,

Described diaper has the resin molding (back side film 3) alongst of bearing of trend during fabrication, Described straight section is formed at described resin molding.

The diaper of scheme 10 feature on the basis of diaper described in either a program in scheme 1 to 9 exists In,

The each position of the both sides of width is respectively equipped with the vertical of the lamellar that alongst arranges Body rivel forming portion 20,

Described three-dimensional rivel forming portion 20 is arranged with in the direction of the width and can not erect in a thickness direction Base end part and the rising portions that can erect to the skin side of thickness direction with described base end part for fulcrum, pass through Make under the effect of described rising portions contractility on the length direction acting on described rising portions along described Length direction shrinks, so that described rising portions erects to the skin side of thickness direction,

The described line 50 that cuts is formed at than described base end part and described rising portions by the outside of width Position.

The diaper of scheme 11 feature on the basis of diaper described in either a program in scheme 1 to 10 exists In,

This diaper has absorber core 41 in the centre of width, and this absorber core 41 is by using Formed in the liquid absorbent material stacking in a thickness direction absorbing liquid,

Described cut linear 50 and become than described absorber core 41 by the positions in the outside of width.

A kind of flat type disposable diaper is in scheme 1 to 11 on the basis of diaper described in either a program It is characterised by,

In the part as waist peristome in described second waist portion 1c, position in the direction of the width In cutting, with described, the position that line 50 is identical, alongst it is formed with line of cut (not shown).

Aforementioned embodiments is intended that and readily appreciates the present invention rather than limit the present invention.The most mediocre polylogia, In the case of without departing from the scope of the present invention, the present invention can be carried out modification and improvement, the present invention etc. Valency thing is also contained by the present invention.

[description of reference numerals]

1 (deploying type is disposable) diaper, 1a the first waist portion, 1b crotch, 1c the second waist portion, 2 top flats, 3 back side film, 4 absorbers, 41 absorber cores, 42 covering material, 43 veutro breach Portion's (a pair notch part), the end in outside of 431 widths, 43a top, 43b, 43c length Both ends on direction, 44 dorsal part notch parts (another pair notch part), the outside of 441 widths End, 44a top, both ends on 44b, 44c length direction, 45 gauffers, 46 gauffers, 47 a pair notch part, 5 outer loads, 6 lower limbs enclose retractility component (retractility component), 7 lower limbs, 10 solid Fixed band, 11 base materials, 12 hook tabs, 13 dorsal part side flap, 14 veutro side flap (side flap), 20 vertical Body rivel, 21 three-dimensional rivel sheets, 22 three-dimensional rivel retractility components (retractility component), b produce Product center, the abutting end of a, 1c1 fixing band, L1 the first length, L2 the second length, 50 cut line

Claims

1. a disposable diaper, it is deploying type, and has length direction intersected with each other and width side To, and from the side of described length direction, it is configured with the first waist portion, crotch and the second waist portion, It is characterized in that,

This disposable diaper has absorber core and from described first waist portion to the two of described width A pair fixing band that outside extends,

Described second waist portion has the abutting end of described fixing band, described abutting end by described disposably On the described length direction of diaper both ends alignment time, at described fixing band on described length direction The described length direction by the end of described crotch side on position,

Described absorber core both ends on described width have a pair notch part,

Described absorber core is in the position of the described side leaning on described length direction than the pair of notch part Having another to notch part, on described length direction, being sandwiched in of described absorber core is the pair of scarce The narrowest position of the width in position between oral area is positioned at following region: this region be as described once In region between product center and the described abutting end at the center of property diaper, to be positioned at this region center And the region between described abutting end,

On described length direction, described absorber core be sandwiched in described another to the portion between notch part The narrowest position of width in Wei is positioned at following region: this region is used in described disposable diaper The product center of the heart is by the region of the opposite side contrary with described side.

Disposable diaper the most according to claim 1, it is characterised in that

Described second waist portion has and prolongs outside the two of described width for described crotch A pair side flap stretched,

On described length direction, the position being sandwiched between the pair of notch part of described absorber core In the narrowest position of width be positioned at following region: this region is than described product center and described side flap The outermost end on described width in the end of the described side by described length direction The center in the region between portion, region by described opposite side.

Disposable diaper the most according to claim 1 and 2, it is characterised in that

On described length direction, the position being sandwiched between the pair of notch part of described absorber core In the narrowest position of width be positioned at following region: this region is than described product center and described absorber The center in the region between the end by described opposite side of core, region by described opposite side.

Disposable diaper the most according to claim 1, it is characterised in that

Using the length on described length direction of described disposable diaper as the first length, and will be from Described absorber core is played in the end by the described opposite side of described length direction of described disposable diaper The position being sandwiched between the pair of notch part in the narrowest position of width by described length side To described opposite side end till, length on described length direction is as the feelings of the second length Under condition,

Described second length is more than 22% and less than 26% relative to the ratio shared by described first length.

Disposable diaper the most according to claim 1, it is characterised in that

Described absorber core be sandwiched in that described another is the narrowest to the width in the position between notch part Position is positioned at following region: this region from described product center to described in described length direction another The side distance away from this product center is the length on described length direction of described disposable diaper The region of the extension position of 10%.

Disposable diaper the most according to claim 1 or 5, it is characterised in that

Both ends on described width, are provided with and at least can play institute from the pair of notch part State another to flexible along described length direction in the scope on described length direction till notch part Retractility component,

The shape of described notch part is as follows: by described width outside position in described length side Length upwards is longer than the length on described length direction at the position of the inner side by described width, And in the end in the outside that is positioned against described width, the position on described length direction at top Between both ends on described length direction.

Disposable diaper the most according to claim 6, it is characterised in that

Under the naturalness of described disposable diaper, between the pair of notch part and described another is right The gauffer extended along described width it is respectively formed with between notch part.

Disposable diaper the most according to claim 1, it is characterised in that

The pair of notch part of described absorber core and another width to the part between notch part described Spend the portion by the described opposite side of described length direction of the pair of notch part of ratio with described absorber core The width divided is equal.