CN109414355A

CN109414355A - Pants type absorptive article

Info

Publication number: CN109414355A
Application number: CN201780038029.0A
Authority: CN
Inventors: 荒井麻央; 南冈政宏
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2016-07-28
Filing date: 2017-05-09
Publication date: 2019-03-01
Anticipated expiration: 2037-05-09
Also published as: JP2018015345A; JP6224782B1; WO2018020771A1; TWI732872B; CN109414355B; TW201803534A

Abstract

Pants type absorptive article (1) of the invention has longitudinal and orthogonal with longitudinal direction transverse direction corresponding with the front-rear direction of wearer, with including absorber, in exterior component (11) of the non-skin that longitudinal both sides have the absorbent main body (10) of three-dimensional corrugation and configured in absorbent main body with respect to surface side, the both sides for the veutro portion configured in wearer's veutro are engaged with configuration in the both sides of the drosal part of wearer's back side, form a pair of of side seal portion (S, S), waist opening portion (5) and a pair of of leg opening part (6, 6), in natural flat condition, by the first imaginary line (L1) that the lower end (Sd) in side seal portion and the front end (8a) of three-dimensional corrugation link and the second imaginary line (L2) angulation (θ for passing through the front end (8a) of three-dimensional corrugation and extending on transverse direction (Y) ) it is 40 ° or more and 60 ° hereinafter, the front end (8a) of three-dimensional corrugation (8) leans on the lateral center side of pants type absorptive article than erecting cardinal extremity (8b).

Description

Pants type absorptive article

Technical field

The present invention relates to the pants type absorptive articles such as disposable diaper.

Background technique

As pants type absorptive article, it is known to following Breeches type disposable diaper comprising the suction with absorber The exterior component of the absorbent main body is fixed in the property received main body and configuration in the non-skin of the absorbent main body with respect to surface side, is being worn When configuration connect in the both sides of the drosal part of the back side of wearer in the both sides of the veutro portion of the veutro of wearer with configuring It closes, and forms a pair of of side seal portion, waist opening portion and a pair of of leg opening part.

The training diaper etc. of diaper is detached from about the adult diaper in the Breeches type disposable diaper or for child, For just promoting quality of life (QOL, Quality of life) viewpoint in adult diaper, in child's diaper when just It is easy for excessive extremely common underpants etc. viewpoints, is preferably able to be lifted after bipod passes through leg opening part, keeps station On the spot worn by oneself.

However, existing pants type absorptive article is needed to keep making foot pass through leg opening part with standing by body Body significantly tilts or foot can hook the entrance of leg opening part, therefore is not easy to wear.

In patent document 1, as the diaper for being able to maintain ground oneself dress of standing, recording can be in the abdomen of wearer The structure that the waist portion for the waist configured in wearer and crotch are removably connected by any one of side and back side.

Existing technical literature

Patent document

Patent document 1: Japanese Patent Laid-Open 2008-036019 bulletin

Summary of the invention

The present invention provides a kind of pants type absorptive article, have it is corresponding with the front-rear direction of wearer longitudinal and with Longitudinal orthogonal transverse direction, and there is absorbent main body and exterior component, which includes absorber, described longitudinal Both sides have three-dimensional corrugation, and the non-skin which configured in the absorbent main body is with respect to surface side, the pant type absorbent Article has the veutro portion for the veutro configured when wearing in wearer, configuration in the drosal part of the back side of wearer and positioned at it Between crotch, by the way that the both sides of the both sides of veutro portion and drosal part are engaged, formed a pair of of side seal portion, waist opening portion and A pair of of leg opening part.The three-dimensional corrugation has respectively along the front end longitudinally extended of the absorbent main body and standing Cardinal extremity, it is false by the first of the lower end in the side seal portion and the connection of the front end of the three-dimensional corrugation under natural flat condition Think straight line with the front end for passing through the three-dimensional corrugation and in horizontal second vacation upwardly extended of pants type absorptive article Think that straight line angulation θ is 40 ° or more and 60 ° or less.And the front end of the three-dimensional corrugation is located at than the three-dimensional corrugation The standing cardinal extremity by pants type absorptive article the lateral center side position.

Detailed description of the invention

Fig. 1 is the dress for indicating the Breeches type disposable diaper of an embodiment of pants type absorptive article of the invention The perspective view of state.

Fig. 2 is the expansion for indicating diaper shown in FIG. 1 and the expansion top view of elongation state.

Fig. 3 is the schematic section of the III-III line along Fig. 2.

Fig. 4 is the figure for indicating the natural flat condition of diaper shown in FIG. 1.

Fig. 5 is the figure for indicating the state for stretching the waist opening portion of diaper shown in FIG. 1.

Specific embodiment

Diaper documented by patent document 1 needs the operation for connecting in waist portion with crotch, and the operation of dress can expend labor Power and time.

The present invention relates to the pants type absorptive articles that can eliminate disadvantage possessed by the above-mentioned prior art.

Hereinafter, being based on its preferred embodiment, referring to attached drawing, the present invention will be described.

As shown in Figure 1, the Breeches type disposable diaper 1 (hereinafter also referred to as diaper 1) of one embodiment of the present invention is into The Breeches type disposable diaper of people.

Diaper 1 have longitudinal direction X corresponding with the front-rear direction of the wearer and lateral Y orthogonal with longitudinal direction X, as Fig. 2 with Shown in Fig. 3, comprising: absorbent main body 10, it includes absorbers 4, have three-dimensional corrugation 8 in the both sides of longitudinal X；And exterior component 11, it is located at the non-skin of the absorbent main body 10 with respect to surface side, fixes the absorbent main body 10.

As shown in Fig. 2, diaper 1 has the veutro portion A for the veutro configured when wearing in wearer, configures the back in back side Side B and positioned at the crotch C between them.

The outer surface of the formation diaper 1 of exterior component 11 has longitudinal direction in the state (referring to Fig. 2) of its expansion and elongation The shape that central portion attenuates.Exterior component 11 passes through both sides B1, B1 of both sides A1, A1 of veutro portion A and drosal part B is mutual Engagement, and a pair of of side seal portion S, S, waist opening portion 5 and a pair of of leg opening part 6,6 are formed in diaper 1.In shorts such as diapers 1 In type absorbent commodity, it via crotch C to the direction of drosal part B, lateral Y is orthogonal with longitudinal X that longitudinal X, which is from veutro portion A, Direction.

The absorbent main body 10 and absorber 4 of diaper 1 are respectively provided with longer on direction identical with longitudinal X of diaper 1 Longitudinal shape.

In addition, diaper 1 has about the longitudinally central symmetrical shape of line CL extended on longitudinal X.Therefore, to a left side The explanation of right symmetrical part is illustrated by taking right side as an example sometimes, but left side is also same.

There is absorbent main body 10 positive dough sheet 2 of liquid permeability, the back sheet 3 of liquid difficulty permeability and insertion configuration to exist The absorber 4 of liquid retainability between two pieces 2,3.Liquid difficulty permeability also includes water-repellancy, liquid impermeability.As just Dough sheet 2, back sheet 3 and absorber 4, the various materials that can be used all the time using this kind of article with no particular limitation respectively Material.For example, being able to use various non-woven fabrics, perforated film etc. as positive dough sheet 2, as back sheet 3, it is thin to be able to use resin The laminate etc. of film or resin film and non-woven fabrics etc..Back sheet 3 can have penetrability, can also not have penetrability.Make For absorber 4, it is able to use the absorbent core of the aggregate of absorbency fibers such as including paper pulp fiber or keeps high suction wherein Construction obtained by the clad sheets such as the non-woven fabrics of water penetration, cotton paper cladding of absorbent core made of the property received polymer etc..

Absorbent main body 10 has three-dimensional corrugation 8, and absorbent main body 10 is fixed in a side edge part side of the three-dimensional corrugation 8 Component parts, and can be to erect cardinal extremity 8b and erected using another side edge part side as front end 8a with the fixing end.Such as Fig. 2 and figure Shown in 3, three-dimensional corrugation 8 in longitudinal both sides of absorbent main body 10, respectively along longitudinal direction X-shaped at.Three-dimensional corrugation 8 has solid Gauffer formation piece 81 and the elastomeric element 82 that the piece 81 is fixed under elongation state.Three-dimensional corrugation formation is with piece 81 in crotch C has the fixed area 81b for being fixed on the component parts of absorbent main bodies 10 such as positive dough sheet 2, back sheet 3, also has without solid Due to the free space 81a of the component parts of the absorbent main body 10, in free space 81a and free space 81a to stretch The fixed elastomeric element 82 of long status forms three-dimensional corrugation 8.Three-dimensional corrugation 8 has front end 8a and erects cardinal extremity 8b, front end 8a Extend respectively along the longitudinal direction of absorbent main body 10 with standing cardinal extremity 8b.Three-dimensional corrugation is formed in piece 81, fixed area 81b with The interface of free space 81a becomes the standing cardinal extremity 8b of three-dimensional corrugation 8, in the transverse direction of three-dimensional corrugation 8 with the standing cardinal extremity 8b is that the end of opposite side becomes the front end 8a of three-dimensional corrugation 8, so that free space 81a can be erected.

The three-dimensional corrugation of present embodiment is formed in piece 81, erects cardinal extremity 8b by the outside of transverse direction Y than three-dimensional corrugation 8 Part from the skin opposite face side of absorber 4 to non-skin with respect to surface side volume under.Three-dimensional corrugation formation piece 81, which has, to be inhaled The non-skin of acceptor 4 is with respect to the part that surface side is engaged at least one of back sheet 3 and exterior component 11, and the flesh in absorber 4 Skin is fixed on the part in positive dough sheet 2 with respect to surface side, in crotch C and veutro portion A and a part of drosal part B each, is formed Above-mentioned free space 81a leaves from positive dough sheet 2 part and the three-dimensional corrugation 8 that erects.On the other hand, be located at veutro portion A and Longitudinal both ends of the absorbent main body 10 of drosal part B, three-dimensional corrugation, which is formed, to be used in piece 81, with standing positioned at three-dimensional corrugation 8 The 8e that the part on the extended line of cardinal extremity 8b is compared by the lateral center side of absorbent main body 10 is played partially also to lodge in positive dough sheet 2 Above and it is bonded in positive dough sheet 2.

Veutro portion A and the exterior component 11 of drosal part B each there is outer-skin sheet 12A, 12B and inner layer piece 13A, 13B stacking and At construction, which includes telescopic sheet, the inner layer piece 13A, 13B compared with outer-skin sheet 12A, 12B lean on skin Opposite surface side, and including non-elongate piece.On the other hand, the exterior component 11 of crotch C has outer-skin sheet 12C and inner layer piece 13C layers It is constructed made of folded, outer-skin sheet 12C includes non-elongate piece, and inner layer piece 13C leans on skin opposite face compared with outer-skin sheet 12C Side, and including non-elongate piece.Outer-skin sheet 12A, outer-skin sheet 12C and outer-skin sheet 12B include different pieces, but in diaper 1 Longitudinally adjacent outer-skin sheet 12A and outer-skin sheet 12C, outer-skin sheet 12B and outer-skin sheet 12C, is overlapped each other with the end of longitudinal X State engagement.On the other hand, inner layer piece 13A, inner layer piece 13C and inner layer piece 13B include a continuous piece.Form outer-skin sheet The telescopic sheet of 12A, 12B have retractility at least on the lateral Y of diaper 1, with the state and outer-skin sheet extended in the lateral direction y 12C, inner layer piece 13A and inner layer piece 13B engagement.On the inner layer piece 13A of veutro portion A and on the inner layer piece 13B of drosal part B, end Portion is fixed to be configured in a manner of the longitudinal both ends for covering absorbent main body 10 with piece 14A, 14B.End fixation piece 14A, The whole region and opposite face bonding for spreading the lateral Y of diaper 1 in 14B for the end of opposite side with the side crotch C, in addition, covering The part face bonding opposite with the skin of absorbent main body 10 of longitudinal end of lid absorbent main body 10.It prevents from wearing as a result, Diaper 1 when foot etc. hook the both ends of absorbent main body 10.

Herein, so-called telescopic sheet refers to following: the maximum elongation rate in direction at least identical with lateral Y is 100% More than, and elongation recovery rate (100% elongation of the elongation to after elongation 100%, when contraction on direction identical with lateral Y When elongation recovery rate) be at least 70% or more.In addition, so-called non-elongate piece refers to direction at least identical with lateral Y Maximum elongation rate is 10% below (length only extends to 1.1 times of piece).Maximum elongation rate and elongation recovery rate are with as follows Mode measures.

The measuring method > of < elongation recovery rate

From the short strip shape sample strip of the piece cut-out length 50mm of measure object, width 25mm, commercially available pull test is used Machine (for example, TENSILON RTG-1310 of ORIENTEC company manufacture), by distance D between initial chuck₀It is set as 40mm, with The tensile speed of 300mm/min extends the sample strip to length D when 100% elongation₂(D₂=D₀× 2), later with stretching The identical speed of speed starts to restore, and the length of sample strip when tension load to be become to 0 for the first time is set as the length after elongation restores Spend D1.Elongation recovery rate when 100% elongation is calculated according to the following formula.

Elongation recovery rate (%)=[(D when 100% elongation₂﹣ D₁)/(D₂﹣ D₀)]×100

When elongation recovery rate or maximum elongation rate in the direction identical with lateral Y to diaper are measured, urine is used The sample that the length in the corresponding direction cloth and lateral Y is 50mm and the length in the direction corresponding with longitudinal X of diaper is 25mm Piece, when elongation recovery rate or maximum elongation rate in the direction identical with longitudinal X to diaper are measured, using diaper with The sample strip that the length in the corresponding direction longitudinal X is 50mm and the length in the direction corresponding with lateral Y of diaper is 25mm.

The measuring method > of < maximum elongation rate

Make size sample strip identical with sample strip used in the measuring method of above-mentioned elongation recovery rate, identical Under the conditions of extend, elongation at the time of fracture is set as maximum elongation rate.

As telescopic sheet, various well known structures are able to use, it is, for example, possible to use Japanese Patent Laid-Open 2008- Stretchable sheet documented by No. 179128 bulletins, passes through telescopic sheet documented by Japanese Patent Laid-Open 2007-22066 bulletin The retractility that the manufacturing method of flexible nonwoven fabrics documented by Japanese Patent Laid-Open 2007-22066 bulletin manufactures without No. 3054930 woven fabric, patent bulletins etc..

As shown in figure 4, under natural flat condition, the lower end Sd of side seal portion S and solid are wrinkled for the diaper 1 of present embodiment Pleat 8 front end 8a connection the first imaginary line L1, with pass through the three-dimensional corrugation 8 front end 8a and in pants type absorptive article The the second imaginary line L2 angulation θ extended on 1 lateral Y is 40 ° or more and 60 ° hereinafter, and before the three-dimensional corrugation 8 Hold lateral center side (the longitudinally central line CL that erects cardinal extremity 8b by pants type absorptive article 1 of the 8a than the three-dimensional corrugation 8 Side).When in side seal portion, S has certain length (width) in the lateral direction y, the first imaginary line L1 is will be in the transverse direction of diaper 1 The line that the front end 8a of lower end Sd (close to the corner of 10 side of absorbent main body) and three-dimensional corrugation 8 near centre link.

The diaper 1 of present embodiment by making 40 ° of above-mentioned angulation θ or more, can only by by foot under just Side, which is put down, just makes foot easily pass through leg opening part 6, can prevent foot from hooking the lower end of side seal portion S.

In addition, by making 60 ° of above-mentioned angulation θ hereinafter, foot holds when wearer keeps oneself wearing with standing Leg opening part 6 is easily passed through, so that body the inadequate posture such as is significantly tilted without taking to wear.In addition, three-dimensional wrinkle The front end 8a of pleat 8 is located at than erecting cardinal extremity 8b by the position of the lateral center side of diaper 1, and three-dimensional corrugation 8 is to the lateral center side Inclination, three-dimensional corrugation 8 is not easy to be present in foot on the conducting wire of leg opening part 6 as a result, be able to suppress foot or toe hook it is vertical Body gauffer 8 and cause to be difficult to the case where wearing.

When wearer keeps oneself wearing with standing, for the viewpoint for being more easier that foot is made to pass through leg opening part 6, Above-mentioned angulation θ is more preferably 44 ° or more, and then preferably 46 ° or more, furthermore it is preferred that being 58 ° hereinafter, in turn preferably For 56 ° hereinafter, in addition, more preferably 44 ° or more and 58 ° hereinafter, in turn be preferably 46 ° or more and 56 ° or less.

So-called nature flat condition refer to pants type absorptive article with the side drosal part B downward, the side veutro portion A upward Mode lays flat in the horizontal plane and makes the state of pants type absorptive article natural shrinking, above-mentioned angulation θ, three-dimensional corrugation Front end and erect cardinal extremity positional relationship etc. proceed as follows investigation.

That is, by the side drosal part B downward, the side veutro portion A pant type absorbent in the horizontal plane is laid flat in a manner of upward On article, acrylic resin board is loaded, loads counterweight in a manner of the load for applying 4.5kPa on it, and it is small to place 12 When.After placing 12 hours, the pants type absorptive article for the state that shooting is flattened from surface, and to the pants type of the state The lower end Sd in the side seal portion in absorbent commodity, the front end 8a of three-dimensional corrugation 8, three-dimensional corrugation 8 standing cardinal extremity 8b position into Row research, their position is recorded on the image.Then, according to the image, to straight line L1 and straight line L2 angulation θ into Row measurement, straight line L1 link the lower end Sd in side seal portion and the front end 8a of three-dimensional corrugation 8, and straight line L2 passes through three-dimensional corrugation 8 Front end 8a and extend on the lateral Y of pants type absorptive article 1, in addition, to the front end 8a of three-dimensional corrugation and erecting cardinal extremity The positional relationship of 8b is studied.

In addition, the position of the front end 8a of three-dimensional corrugation, is the longitudinal natural flat condition of the front end 8a of three-dimensional corrugation 8 Pants type absorptive article up and down direction [up and down direction of Fig. 4] on be located at lower side part position, in general, mostly Inflection position when assembling pants type absorptive article from unfolded state is equivalent in number situation (that is, pants type absorptive article Longitudinal X on middle position).The position of standing cardinal extremity 8b about three-dimensional corrugation, becomes pants type absorptive article When expansion and elongation state, the position of longitudinal X is the standing base of three-dimensional corrugation identical with the position of front end 8a of three-dimensional corrugation Hold the position of 8b.In addition, proceeding as follows adjustment in advance before loading acrylic resin board: with hand gently by side seal After portion stretches to the left and right, hand is decontroled, the drosal part of the state of overlapping and veutro portion is made to become flat.

In the pants type absorptive article of natural flat condition, the front end 8a of three-dimensional corrugation is away from the standing of three-dimensional corrugation 8 The distance L3 (referring to Fig. 4) of cardinal extremity 8b is preferably 10% or more of the lower end width L4 of crotch C, more preferably 12% or more and 30% or less.In addition, above-mentioned lower end width L4 is preferably 80mm or more, more preferably 100mm or more, furthermore it is preferred that being 250mm Hereinafter, more preferably 210mm or less.

In addition, three-dimensional corrugation 8 is preferably from the range (free zone of three-dimensional corrugation formation piece for erecting cardinal extremity 8b to front end 8a Domain 81c) continuously gone to the lateral center side of pants type absorptive article.

In addition, in the pants type absorptive article of natural flat condition, the lower end Sd in side seal portion and the front end of three-dimensional corrugation The distance between 8a L5 (referring to Fig. 4) is preferably 50% or more and 250% of the lower end width L4 of crotch C hereinafter, more preferably 100% or more and 200% or less.In addition, above-mentioned distance L5 is preferably 80mm or more, more preferably 100mm or more, in addition, excellent 200mm is selected as hereinafter, more preferably 180mm or less.

Maximum elongation length L6 (reference in the diaper 1 of present embodiment, between a pair of of side seal portion S, the S in waist opening portion 5 It is Fig. 5) 3 times or more of the lower end width L4 of the crotch under nature flat condition.If maximum elongation length L6 is set as crotch 3 times or more of lower end width L4 then can very significantly expand waist relative to the lower end width L4 of crotch when wearing diaper 1 Portion opening portion 5 is easy to make foot pass through leg opening part 6 while visually confirming leg opening part 6, and wearer is easier certainly Oneself wears diaper 1.For more reliably playing the viewpoint of the effect, maximum elongation length L6 is preferably that the lower end of crotch is wide 3 times or more, more preferably 3 times or more and 5 times of L4 are spent hereinafter, being in turn preferably 3.3 times or more and 4.5 times or less.

Maximum elongation length L6 is measured by following methods.

[measuring method of maximum elongation length]

By away from left and right side seal portion each upper end 2cm range sandwich tensile testing machine (Orientech company manufacture, Trade name " RTA-100 ") chuck, tension load becomes when distance between side seal portion will be made to expand with 300mm/ seconds speed The distance between side seal portion at the time of 0.1N/cm is set as above-mentioned maximum elongation length L6.

In addition, the diaper 1 of present embodiment is under natural flat condition, the lower end Sd in side seal portion and the side end Cs of crotch Between the distance L7 (referring to Fig. 4) of lateral Y of pants type absorptive article be 0.2 times or more of lower end width L4 of crotch. If above-mentioned distance L7 to be set as to 0.2 times or more of the lower end width L4 of crotch, increase the leg opening part 6 when wearing diaper 1 Width is then easy to make foot pass through leg opening part 6 while visually confirming leg opening part 6, in addition, opening across leg When oral area 6, foot or toe are not easy to hook around leg opening part 6.For the viewpoint, above-mentioned distance L7 is preferably crotch 0.2 times or more of above-mentioned lower end width L4, more preferably 0.3 times or more and 2 times hereinafter, be preferably 0.5 times or more and 1.5 in turn Times or less.

Above-mentioned distance L7 is measured as follows, that is, in the image when being measured to above-mentioned angulation θ, is removed Other than the position of the lower end Sd in side seal portion, the position of the side end Cs of crotch C is also written, to the cross along pants type absorptive article To direction on the distance between Sd and Cs be measured (referring to Fig. 4).

The exterior component 11 of the diaper 1 of present embodiment have waist elastic members 51, the waist elastic members 51 for pair The opening peripheral part in waist opening portion 5 assigns retractility.Waist elastic members 51 are fixed on the outer of veutro portion A under elongation state Between synusia 12A and inner layer piece 13A and between the outer-skin sheet 12B and inner layer piece 13B of drosal part B.

The exterior component 11 of the diaper 1 of present embodiment has leg elastic members 61, is used for opening to leg opening part 6 Mouth peripheral part assigns retractility.More specifically, as leg elastic members 61, have from veutro portion A and configure to the of crotch C One leg elastic members 61a, and configure from drosal part B to the second leg elastic members 61b of crotch C.First leg elastic portion Part 61a and the second leg elastic members 61b are respectively provided with: outboard end, are located at side seal portion S；Middle part, along leg opening The peripheral part in portion 6 configures；And medial extension, the peripheral part of leg opening part 6 is left, into the transverse direction of absorbent main body 10 Side (side longitudinally central line CL) is entreated to extend.

The first leg elastic members 61a and the second leg elastic members 61b throughout crotch C lateral whole region and It is spaced from each other.It is spaced from each other by the first leg elastic members 61a and the second leg elastic members 61b, in leg opening part 6 Peripheral part ensures retractility and can prevent leg opening part 6 from significantly shrinking, and is more easier to make to wear when wearing diaper 1 Cross leg opening part 6.For taking into account the viewpoint for ensuring the easness passed through to the conjunction property of the good note around leg with promotion foot, the The shortest distance L8 (referring to Fig. 2) of diaper longitudinal direction between one leg elastic members 61a and the second leg elastic members 61b is preferably For diaper 1 longitudinal overall length L (referring to Fig. 2) 15% or more and 50% hereinafter, more preferably 20% or more and 45% or less.

Furthermore as shown in Fig. 2, in the diaper 1 of present embodiment, in region C1, except configuration is in the elastomeric element of three-dimensional corrugation Other than 82, the elastomeric element extended on longitudinal X is not configured, region C1, which is located at, is configured with the first leg elastic members 61a The first leg elastic members 61a configuring area be configured with the second leg elastic members 61b the second leg elastic members Between the configuring area of 61b.

That is, not configuring the elastomeric element extended on longitudinal X in exterior component 11, and then upper in above-mentioned zone C1 It states in the C1 of region, other than the absorbent main body 10 also elastomeric element 82 in addition to configuration in three-dimensional corrugation, does not configure in longitudinal X The elastomeric element of upper extension.

It can prevent leg opening part 6 from significantly shrinking, be more easier that foot is made to pass through leg opening when wearing diaper 1 For the viewpoint in portion 6, preferably the elastomeric element extended on longitudinal X is not configured in the exterior component 11 of above-mentioned zone C1, in the area In the C1 of domain, in the entirety that preferably comprises the pants type absorptive article of exterior component 11 and absorbent main body 10, except configuration is in solid Other than the elastomeric element 82 of gauffer, the elastomeric element extended on longitudinal X is not configured.

As waist elastic members 51 and leg elastic members 61a, 61b, can use in disposable diaper respectively always Since used various elastomeric elements, for example, styrene-butadiene, butadiene, isoprene, neoprene can be enumerated Equal synthetic rubber, natural rubber, EVA, expandable polyolefin hydrocarbon, polyurethanes etc..As the form of elastomeric element, Neng Gouyou Selection of land uses the filiform (rubber covered wire etc.) or rope form (rubber that section is rectangle, square, circle, ellipse or multilateral shape etc. Adhesive tape etc.) form or the filamentous form of multifilament type etc..

More than, based on its preferred embodiment, the present invention is described, but the present invention is not limited to above-mentioned realities Mode is applied, is able to carry out and suitably changes.

For example, it includes throughout veutro portion A, crotch C and drosal part B continuous one that exterior component 11, which is also possible to outer-skin sheet, Piece.In addition, the outer-skin sheet 12C of crotch C can also be made of telescopic sheet.In addition, exterior component 11 can also only non-be stretched by one Long property piece is constituted.It is further possible to instead of the end fixed piece seperated with outer-skin sheet 12A, 12B and inner layer piece 13A, 13B 14A, 14B make the week from the continuous piece of one of outer-skin sheet 12A, 12B and inner layer piece 13A, 13B or both in waist opening portion The part of the inflection is used as the fixed piece in end by acies inflection.In addition it is also possible to fix without end with piece 14A, 14B One or both.

In addition, exterior component 11 is also possible to outer-skin sheet and the entirety of inner layer piece is only made of non-elongate piece, it is also possible to Outer-skin sheet and the entirety of inner layer piece are only made of telescopic sheet.

In addition, pants type absorptive article of the invention also can replace adult Breeches type disposable diaper, and it is The Breeches type disposable diaper for being detached from diaper training of child, or the menstrual hygiene towel of pants type.

About the embodiment (form) of aforementioned present invention, pants type absorptive article below is further disclosed.

1 > of <

A kind of pants type absorptive article has corresponding with the front-rear direction of wearer longitudinal and longitudinal orthogonal with this Transverse direction, and there is absorbent main body and exterior component, the absorbent main body includes absorber, is had in the longitudinal both sides There is three-dimensional corrugation, the exterior component configuration is in the opposite surface side of non-skin of the absorbent main body, the pants type absorptive article Veutro portion, configuration with the veutro configured when wearing in wearer are in the drosal part of back side of wearer and therebetween Crotch forms a pair of of side seal portion, waist opening portion and a pair by engaging the both sides of the both sides of veutro portion and drosal part Leg opening part, in the pants type absorptive article, the three-dimensional corrugation has respectively along the described vertical of the absorbent main body Front end and standing cardinal extremity to extension, under natural flat condition, by the institute of the lower end in the side seal portion and the three-dimensional corrugation The first imaginary line of front end connection is stated with the front end for passing through the three-dimensional corrugation and described in the pants type absorptive article Horizontal the second imaginary line angulation θ upwardly extended be 40 ° or more and 60 ° hereinafter, and the three-dimensional corrugation it is described before End is positioned at the standing cardinal extremity than the three-dimensional corrugation by the position of the lateral center side of pants type absorptive article.

2 > of <

The pants type absorptive article as documented by above-mentioned 1 > of <, wherein

Maximum elongation length L6 between a pair of of side seal portion in the waist opening portion is the institute under the natural flat condition 3 times or more for stating the lower end width L4 of crotch.

3 > of <

The pants type absorptive article as documented by above-mentioned 2 > of <, wherein

The maximum elongation length L6 is 3 times or more and 5 times of the lower end width L4 of crotch hereinafter, more preferably 3.3 times Above and 4.5 times or less.

4 > of <

The pants type absorptive article as documented by any one of above-mentioned 3 > of < 1 > to <, wherein

Under the natural flat condition, the pants type between the lower end in the side seal portion and the side end of the crotch is inhaled The lateral distance L7 of the property received article is 0.2 times or more of the lower end width L4 of the crotch.

5 > of <

The pants type absorptive article as documented by above-mentioned 4 > of <, wherein

Under the natural flat condition, the pants type between the lower end in the side seal portion and the side end of the crotch is inhaled The lateral distance L7 of the property received article is 0.3 times or more and 2 times of the lower end width L4 of the crotch hereinafter, more preferably 0.5 times or more and 1.5 times or less.

6 > of <

The pants type absorptive article as documented by any one of above-mentioned 5 > of < 1 > to <, wherein

The leg elastic members that retractility is assigned as the opening peripheral part to the leg opening part, have from the abdomen Side configures to the first leg elastic members of the crotch and configures from the drosal part to the second leg bullet of the crotch Property component, the first leg elastic members and the second leg elastic members the crotch the lateral whole region each other every The standard width of a room in an old-style house every.

7 > of <

The pants type absorptive article as documented by above-mentioned 6 > of <, wherein

Diaper (pants type absorptive article) between first leg elastic members and the second leg elastic members it is described Longitudinal shortest distance L8 be 15% or more and the 50% of longitudinal overall length L of diaper (pants type absorptive article) with Under, more preferably 20% or more and 45% or less.

8 > of <

The pants type absorptive article as documented by above-mentioned 6 > of < or 7 > of <, wherein

Configuring area and the second leg in longitudinal first leg elastic members of pants type absorptive article Region between the configuring area of elastomeric element does not configure other than configuring in the elastomeric element of the three-dimensional corrugation The longitudinally extending elastomeric element.

9 > of <

Configuring area and the second leg in longitudinal first leg elastic members of pants type absorptive article Region between the configuring area of elastomeric element is not configured in the exterior component in the longitudinally extending elastomeric element.

10 > of <

The pants type absorptive article as documented by any one of above-mentioned 9 > of < 1 > to <, wherein

The leg elastic members that retractility is assigned as the opening peripheral part to the leg opening part, have from the abdomen Side configures to the first leg elastic members of the crotch and configures from the drosal part to the second leg bullet of the crotch Property component, the first leg elastic members and the second leg elastic members are respectively provided with: the outboard end positioned at side seal portion；Along leg The middle part of the peripheral part configuration of opening portion；With the peripheral part of leaving leg opening part and to the lateral center side of absorbent main body The medial extension that (side longitudinally central line CL) extends.

11 > of <

The pants type absorptive article as documented by any one of above-mentioned 10 > of < 1 > to <, wherein

The angulation θ is preferably 44 ° or more, and then preferably 46 ° or more, furthermore it is preferred that be 58 ° hereinafter, into And preferably 56 ° hereinafter, in addition, more preferably 44 ° or more and 58 ° hereinafter, in turn be preferably 46 ° or more and 56 ° or less.

12 > of <

The pants type absorptive article as documented by any one of above-mentioned 11 > of < 1 > to <, wherein

In the pants type absorptive article of natural flat condition, the front end of the three-dimensional corrugation is away from the three-dimensional wrinkle The distance L3 of the standing cardinal extremity of pleat be preferably 10% or more, more preferably 12% or more of the lower end width of the crotch and 30% or less.

13 > of <

The pants type absorptive article as documented by any one of above-mentioned 12 > of < 1 > to <, wherein

In the pants type absorptive article of natural flat condition, the front end of the three-dimensional corrugation is away from the three-dimensional wrinkle The distance L3 of the standing cardinal extremity of pleat is 250mm hereinafter, preferably 210mm or less.

14 > of <

The pants type absorptive article as documented by any one of above-mentioned 13 > of < 1 > to <, wherein

In the pants type absorptive article of natural flat condition, the lower end in the side seal portion and the institute of the three-dimensional corrugation 50% or more and 250% of the lower end width L4 that the distance between front end L5 is preferably the crotch is stated hereinafter, more preferably 100% or more and 200% or less.

15 > of <

The pants type absorptive article as documented by any one of above-mentioned 14 > of < 1 > to <, wherein

In the pants type absorptive article of natural flat condition, the lower end in the side seal portion and the institute of the three-dimensional corrugation Stating the distance between front end L5 is preferably 80mm or more, more preferably 100mm or more, furthermore it is preferred that being 200mm hereinafter, more excellent It is selected as 180mm or less.

16 > of <

The pants type absorptive article as documented by any one of above-mentioned 15 > of < 1 > to <, wherein

The absorbent main body has the positive dough sheet of liquid permeability, the back sheet of liquid difficulty permeability and between two piece Between liquid retainability the absorber.

17 > of <

The pants type absorptive article as documented by any one of above-mentioned 16 > of < 1 > to <, wherein

The three-dimensional corrugation is had three-dimensional corrugation formation piece and is fixed on the elastomeric element of the piece with elongation state.

18 > of <

The pants type absorptive article as documented by above-mentioned 17 > of <, wherein

The three-dimensional corrugation formation piece has consolidating for the component parts for being fixed on the absorbent main body in the crotch Determine region, also there is the free space for the component parts for being not fixed to the absorbent main body, the free space with elongate The elastomeric element that state is fixed on the free space forms the three-dimensional corrugation.

19 > of <

The pants type absorptive article as documented by any one of above-mentioned 17 > of < or 18 > of <, wherein

The three-dimensional corrugation is formed in piece, positioned at the standing cardinal extremity than the three-dimensional corrugation by described lateral outer The part of the position of side, with respect under the volume of surface side, has in the absorber from the skin opposite face side of the absorber to non-skin Non- skin it is opposite with respect to the part that surface side is engaged at least one of back sheet and exterior component, and in the skin of the absorber Surface side is fixed on the part in positive dough sheet.

20 > of <

The pants type absorptive article as documented by any one of above-mentioned 19 > of < 1 > to <, wherein

The three-dimensional corrugation is in the crotch or in a part of the crotch and the veutro portion and the drosal part each In, it is formed in a manner of leaving and erecting from the positive dough sheet of skin opposite face for forming the absorbent main body.

21 > of <

The pants type absorptive article as documented by any one of above-mentioned 20 > of < 1 > to <, wherein

The structure that there is the exterior component of the veutro portion and the drosal part each outer-skin sheet and inner layer piece to be laminated It makes, which includes telescopic sheet, which is located at the position than outer-skin sheet by skin with respect to surface side, and including non-elongate Property piece.

22 > of <

The pants type absorptive article as documented by any one of above-mentioned 21 > of < 1 > to < is adult shorts Type absorbent commodity.

23 > of <

The pants type absorptive article as documented by any one of above-mentioned 22 > of < 1 > to <, wherein

The first imaginary line L1 is by the lateral center by the pants type absorptive article in the side seal portion The straight line that lower end (close to the corner of absorbent main body side) is connect with the front end of the three-dimensional corrugation.

[embodiment]

Hereinafter, the present invention is described in more detail by embodiment.However, the scope of the present invention is not appointed by the embodiment What is limited.

[Examples 1 and 2]

It is shown in table 1 that making, which has the size of structure, Fig. 2, Fig. 4 and each section shown in fig. 5 shown in FIG. 1 to FIG. 3, The adult Breeches type disposable diaper of size.

[the Comparative Examples 1 to 5]

Prepare the Breeches type disposable diaper of commercially available adult.To their own Fig. 2, Fig. 4 and each portion shown in fig. 5 The size divided is measured and is shown in table 1.In addition, the position of the front end about three-dimensional corrugation, by the front end position of three-dimensional corrugation It is set as "+" by the case where position of the lateral center side of Breeches type disposable diaper in the standing cardinal extremity than three-dimensional corrugation, it will "-" is set as positioned at the case where position in lateral outside.In addition, the Breeches type disposable diaper of comparative example 5 does not have three-dimensional wrinkle Pleat.

[evaluation]

It is shaken by following methods using center of gravity for the Breeches type disposable diaper of Examples 1 and 2 and the Comparative Examples 1 to 5 Dynamic meter waves rail to the center of gravity for keeping subject when making foot pass through Breeches type disposable diaper and carry out pull lift action with standing Mark length is measured, and to the easiness (easness and lift extremely that foot passes through for keeping dress when oneself wearing with standing The easness of knee) it is evaluated.

The evaluation method > of the easiness of < dress

Make 15 each subjects are following to the progress of each diaper on center of gravity is shaken and counted to wear movement, in dress movement The center of gravity shake of subject is measured, and calculates the center of gravity wobble path length in dress movement.Implement dress movement by The person of testing is the elderly 15 of more than 60 years old~more than 70 years old of health.Wear diaper sequence be it is random, each subject does not know simultaneously Which kind of diaper road can wear.

[dress movement]

(1) in standing in the state that center of gravity shakes meter above, hand takes the both sides of diaper, and diaper is unfolded.Then, by foot by A pair of of leg opening part of the diaper of a state being put into after expansion (foot passes through).The sequence of the left and right of foot.

(2) after bipod being put into diaper, the state hand stood is kept to take the both sides of diaper, by the position of diaper to knee (carrying out pull lift action).

(3) by behind the position of diaper to knee, hand is decontroled, to face positive posture static 10 seconds to attention.

The average value of the center of gravity wobble path length of 15 subjects of each diaper is indicated in table 1.Center of gravity shakes meter The vertical that foot force is detected with converter checks balance as the shake at change in electric output foot press center The foot press detection device of function.Specifically, use system Gravicorder G-5500 (Anima limited liability company) as Center of gravity shakes meter.

Center of gravity wobble path length becomes the easiness (easness and lift to knee that foot passes through for indicating diaper dress Easness) quality index.That is, center of gravity wobble path length is shorter, indicate that the center of gravity of body is more stable, it is easier to make to wear It crosses diaper and lifts to knee.In addition, center of gravity wobble path length is longer, indicate that the center of gravity of body is more unstable, is more difficult to carry out So that foot is passed through diaper and lifts to the movement of knee.

θ, L, L3~L8 in table 1 is as described below.

θ: the first imaginary line L1 and the second imaginary line L2 angulation

L: longitudinal overall length of diaper 1

L3: the distance of the standing cardinal extremity 8b away from three-dimensional corrugation 8

L4: the lower end width of crotch C

L5: the distance between the lower end Sd and the front end 8a of three-dimensional corrugation in side seal portion

L6: the maximum elongation length L6 of the distance between side seal portion

L7: the pant type absorbent object under natural flat condition, between the lower end Sd in side seal portion and the side end Cs of crotch The distance of the lateral Y of product

The shortest distance of diaper longitudinal direction between L8: the first leg elastic members 61a and the second leg elastic members 61b

As shown in table 1, it is known that: the center of gravity wobble path length of the diaper of the embodiment of the present invention 1 and 2 be 130cm hereinafter, Compared with the diaper (center of gravity wobble path length is more than 130cm) of the Comparative Examples 1 to 5, center of gravity wobble path length is short, therefore is easy Keep ground oneself dress of standing.Center of gravity wobble path length is preferably 130cm hereinafter, more preferably 125cm or less.

[industrial availability]

Pants type absorptive article of the invention is easy oneself to wear with keeping standing.

Claims

1. a kind of pants type absorptive article has corresponding with the front-rear direction of wearer longitudinal and longitudinal orthogonal with this Laterally, and there is absorbent main body and exterior component, the absorbent main body includes absorber, is had in longitudinal both sides Three-dimensional corrugation, the exterior component configuration is in the opposite surface side of non-skin of the absorbent main body, the pants type absorptive article tool The drosal part and therebetween crotch of the veutro portion, the back side configured in wearer that have the veutro configured when wearing in wearer Portion forms a pair of of side seal portion, waist opening portion and a pair of of leg by engaging the both sides of the both sides of veutro portion and drosal part Portion opening portion, the pants type absorptive article are characterized in that:

The three-dimensional corrugation have respectively along the front end longitudinally extended of the absorbent main body and erect cardinal extremity,

Under natural flat condition, by the first imagination of the lower end in the side seal portion and the connection of the front end of the three-dimensional corrugation Straight line is with the front end for passing through the three-dimensional corrugation and in horizontal second imagination upwardly extended of pants type absorptive article Straight line angulation θ be 40 ° or more and 60 ° hereinafter, and the three-dimensional corrugation the front end positioned at than the three-dimensional corrugation The position for erecting cardinal extremity and leaning on the lateral center side of pants type absorptive article.

2. pants type absorptive article as described in claim 1, it is characterised in that:

Maximum elongation length L6 between a pair of of side seal portion in the waist opening portion is the crotch under the natural flat condition 3 times or more of the lower end width L4 in portion.

3. pants type absorptive article as claimed in claim 2, it is characterised in that:

The maximum elongation length L6 is 3 times or more and 5 times or less of the lower end width L4 of crotch.

4. pants type absorptive article according to any one of claims 1 to 3, it is characterised in that:

Pant type absorbent under the natural flat condition, between the lower end in the side seal portion and the side end of the crotch The lateral distance L7 of article is 0.2 times or more of the lower end width L4 of the crotch.

5. pants type absorptive article as claimed in claim 4, it is characterised in that:

Pant type absorbent under the natural flat condition, between the lower end in the side seal portion and the side end of the crotch The lateral distance L7 of article is 0.3 times or more and 2 times or less of the lower end width L4 of the crotch.

6. such as pants type absorptive article according to any one of claims 1 to 5, it is characterised in that:

The leg elastic members that retractility is assigned as the opening peripheral part to the leg opening part, have from the veutro portion Configuration is configured to the first leg elastic members of the crotch and from the drosal part to the second leg elastic portion of the crotch Part, the first leg elastic members and the second leg elastic members are between the lateral whole region of the crotch is separated from each other Every.

7. pants type absorptive article as claimed in claim 6, it is characterised in that:

Pants type absorptive article between first leg elastic members and the second leg elastic members it is described longitudinal most short Distance L8 is 15% or more and 50% or less of longitudinal overall length L of pants type absorptive article.

8. pants type absorptive article as claimed in claims 6 or 7, it is characterised in that:

In the configuring area and the second leg elastic of longitudinal first leg elastic members of pants type absorptive article Region between the configuring area of component does not configure other than configuring in the elastomeric element of the three-dimensional corrugation described Longitudinally extending elastomeric element.

9. pants type absorptive article as claimed in claims 6 or 7, it is characterised in that:

In the configuring area and the second leg elastic of longitudinal first leg elastic members of pants type absorptive article Region between the configuring area of component is not configured in the exterior component in the longitudinally extending elastomeric element.

10. such as pants type absorptive article according to any one of claims 1 to 9, it is characterised in that:

The leg elastic members that retractility is assigned as the opening peripheral part to the leg opening part, have from the veutro portion Configuration is configured to the first leg elastic members of the crotch and from the drosal part to the second leg elastic portion of the crotch Part, the first leg elastic members and the second leg elastic members are respectively provided with: the outboard end positioned at side seal portion；Along leg opening The middle part of the peripheral part configuration in portion；With the peripheral part of leaving leg opening part and extend to the lateral center side of absorbent main body Medial extension.

11. such as pants type absorptive article according to any one of claims 1 to 10, it is characterised in that:

The angle, θ is 44 ° or more and 58 ° or less.

12. the pants type absorptive article as described in any one of claim 1~11, it is characterised in that:

In the pants type absorptive article of natural flat condition, the front end of the three-dimensional corrugation is away from the three-dimensional corrugation The distance L3 for erecting cardinal extremity is 10% or more of the lower end width of the crotch.

13. the pants type absorptive article as described in any one of claim 1~12, it is characterised in that:

In the pants type absorptive article of natural flat condition, the front end of the three-dimensional corrugation is away from the three-dimensional corrugation The distance L3 for erecting cardinal extremity is 250mm or less.

14. the pants type absorptive article as described in any one of claim 1~13, it is characterised in that:

In the pants type absorptive article of natural flat condition, before the lower end in the side seal portion and the described of the three-dimensional corrugation The distance between end L5 is 50% or more and 250% or less of the lower end width L4 of the crotch.

15. the pants type absorptive article as described in any one of claim 1~14, it is characterised in that:

In the pants type absorptive article of natural flat condition, before the lower end in the side seal portion and the described of the three-dimensional corrugation The distance between end L5 is 80mm or more and 200mm or less.

16. the pants type absorptive article as described in any one of claim 1~15, it is characterised in that:

There is the absorbent main body positive dough sheet of liquid permeability, the back sheet of liquid difficulty permeability and insertion to be configured at two The absorber of liquid retainability between piece.

17. the pants type absorptive article as described in any one of claim 1~16, it is characterised in that:

18. pants type absorptive article as claimed in claim 17, it is characterised in that:

The three-dimensional corrugation formation piece has the fixed area for the component parts for being fixed on the absorbent main body in the crotch Domain, also has the free space for the component parts for being not fixed to the absorbent main body, which consolidates with elongation state The elastomeric element due to the free space forms the three-dimensional corrugation.

19. the pants type absorptive article as described in claim 17 or 18, it is characterised in that:

The three-dimensional corrugation is formed in piece, leans on the lateral outside positioned at the standing cardinal extremity than the three-dimensional corrugation The part of position, with respect under the volume of surface side, has in the non-of the absorber from the skin opposite face side of the absorber to non-skin Skin with respect to the part that surface side is engaged at least one of back sheet and exterior component, and the absorber skin with respect to surface side It is fixed on the part in positive dough sheet.

20. the pants type absorptive article as described in any one of claim 1~19, it is characterised in that:

The three-dimensional corrugation in the crotch or in a part of the crotch and the veutro portion and the drosal part each, It is formed in a manner of leaving and erecting from the positive dough sheet of skin opposite face for forming the absorbent main body.

21. the pants type absorptive article as described in any one of claim 1~20, it is characterised in that:

The construction that there is the exterior component of the veutro portion and the drosal part each outer-skin sheet and inner layer piece to be laminated, should Outer-skin sheet includes telescopic sheet, which is located at the position than outer-skin sheet by skin with respect to surface side, and including non-elongate piece.

22. the pants type absorptive article as described in any one of claim 1~21, it is characterised in that:

It is adult pants type absorptive article.

23. the pants type absorptive article as described in any one of claim 1~22, it is characterised in that:

The first imaginary line L1 is by the lower end of the lateral center by the pants type absorptive article in the side seal portion Or the straight line being connect close to the corner of the absorbent main body side with the front end of the three-dimensional corrugation.