CN103717188B

CN103717188B - Pants type absorptive article

Info

Publication number: CN103717188B
Application number: CN201280038202.4A
Authority: CN
Inventors: 小山贵夫; 松井学
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2011-08-09
Filing date: 2012-08-01
Publication date: 2016-05-18
Anticipated expiration: 2032-08-01
Also published as: JP2013052228A; CN103717188A; RU2014108875A; WO2013021897A1; RU2612923C2; JP6039956B2

Abstract

In the exterior body (11) of the veutro portion (A) of pants type absorptive article of the present invention (1), by waist region (A2) overlapping to outer-skin sheet (12), inner layer piece (13) and supplementary plate (15) quartering on longitudinal direction (Y), be divided into middle section (E) and the lower end area (F) in upper area (D), central two regions, now, at least between the inner layer piece (13) of middle section (E) and supplementary plate (15), dispose inner side elastomeric element (71). In upper area (D) and lower end area (F), supplementary plate (15) is higher compared with middle section (E) with the bonding area rate of inner layer piece (13) or absorbent main body (10), between outer-skin sheet (13) and inner layer piece (12), there is disengaged region (R2) with the overlapping region, region (R1) that arranges of inner side elastomeric element. The lower end of supplementary plate (15) is positioned at from the longitudinal direction end of absorbent main body (10) the scope of 5～80mm on crotch direction, on longitudinal direction, spread all over 5～50mm length engage with absorbent main body (10).

Description

Pants type absorptive article

Technical field

The present invention relates to pants type absorptive article.

Background technology

At present, known in Breeches type disposable diaper have a following technology,, the waist portion elastomeric element that is disposed at waist portion is fixed on to the parts beyond the outermost synusia that forms diaper outer surface, and between this waist elastomeric element and outermost synusia, disengaged region is set, thus, at the interior square one-tenth gauffer of outermost synusia, on the other hand, do not form gauffer (patent documentation 1) at the outer surface of waist portion.

In patent documentation 2,3, also record at outermost synusia and be disposed at the absorbent commodity between its inner layer piece of skin side with two unassembled disengaged regions of sheet.

In patent documentation 4, record the waist configuration waistline retractility elastomeric element at Breeches type disposable diaper, and with the disposable diaper of the overlapping partial configuration waist retractility elastomeric element of absorber.

Prior art document

Patent documentation

Patent documentation 1:(Japan) Unexamined Patent 11-4853 communique

Patent documentation 2:(Japan) JP 2004-305772 communique

Patent documentation 3:(Japan) JP 2007-151597 communique

Patent documentation 4:(Japan) JP 2008-525104 communique

Summary of the invention

The diaper of patent documentation 1 does not form gauffer at the outer surface of waist portion, therefore, presents clean and tidy outward appearance.

But, arrive near the edge of opening of waist peristome owing to being fixed with the sheet of the elastomeric element that forms gauffer the interior side of outermost synusia, by this sheet be disposed at than roughly engaging on whole between this sheet sheet more in the inner part, and between these sheets, fix above-mentioned elastomeric element, therefore, from the viewpoint of diaper flexibility, there is the leeway of improvement.

In patent documentation 2,3, record following technology, that is, elastomeric element and sheet are fixed with bonding agent, on the other hand, form each other the sheet unassembled region each other that clips this elastomeric element at elastomeric element. But, in the technology of patent documentation 2, between sheet, only fixed by the heat molten type bonding agent that is coated on elastomeric element, therefore, for example, in the time that the shorts type diaper that upwards stretches is dressed, between these sheets, may peel off and produce structure destruction. In addition, the article of patent documentation 2 are narrow to the extended part of edge of opening of waist peristome from absorber or absorbent main body, and the flexibility of waist portion etc. is poor.

In addition, in patent documentation 4, disclose absorbent commodity, its outermost synusia and be disposed at its inner side sheet between, be provided with the part being engaged by point-like heat molten type bonding agent and the part being engaged by the heat molten type bonding agent of whole coating, and have gauffer to form the elastomeric element of use at the partial fixing being engaged by point-like heat molten type bonding agent.

But at outermost synusia and be disposed between the sheet of its inner side and do not have at this outermost synusia and produce the not junction surface of floating portion, therefore, the flexibility of diaper outer surface is poor.

The present invention relates to a kind of pants type absorptive article, the stickiness excellence of its skin to wearer, and the inner surface of pants type absorptive article and the equal softness of outer surface and skin contact feel good, and, in the time putting on, be difficult to produce the structure destruction of absorbent commodity.

The invention provides a kind of pants type absorptive article, the absorbent main body of skin face side that it has exterior body and is fixed on this exterior body, and have from veutro portion via crotch until the longitudinal direction of drosal part and the width that intersects with this longitudinal direction. The above-mentioned exterior body of veutro portion has: outer-skin sheet; Be positioned at the inner layer piece of the skin face side of this outer-skin sheet; Be positioned at the skin face side of this inner layer piece and step up the supplementary plate of stating longitudinal direction end upper and lower of absorbent main body and extend. By waist region overlapping to above-mentioned outer-skin sheet, above-mentioned inner layer piece and above-mentioned supplementary plate quartering on above-mentioned longitudinal direction, be divided into: the upper area being formed by Yi Ge region, upper end; By two middle sections that region forms of central authorities; With the lower end area being formed by Yi Ge region, lower end, now, at least, between the above-mentioned inner layer piece and above-mentioned supplementary plate of above-mentioned middle section, dispose inner side elastomeric element along above-mentioned width. Bonding area rate between above-mentioned upper area and lower end area above-mentioned supplementary plate and above-mentioned inner layer piece or above-mentioned absorbent main body is separately higher than this bonding area rate of above-mentioned middle section. Between above-mentioned outer-skin sheet and above-mentioned inner layer piece, there is disengaged region with the region that arranges region overlapping of the above-mentioned inner side elastomeric element of above-mentioned middle section. The lower end of above-mentioned supplementary plate is positioned at from the longitudinal direction end of above-mentioned absorbent main body the scope below the above 80mm of 5mm on crotch direction, and spreads all over length below the above 50mm of 5mm on above-mentioned longitudinal direction and engage with above-mentioned absorbent main body.

Brief description of the drawings

Fig. 1 is the stereogram representing as the Breeches type disposable diaper of an embodiment of pants type absorptive article of the present invention.

Fig. 2 is the expansion plane of the inner surface side under the diaper expansion shown in presentation graphs 1 and elongation state, launch and elongation state is to instigate pants type absorptive article to become deployed condition, and the elastomeric element of the each several part of the absorbent commodity of this deployed condition is extended and expand to become design size (with get rid of under the state of impact of all elastomeric elements, be extended to measure-alike when plane) state.

Fig. 3 is the I-I sectional view of Fig. 2.

Fig. 4 is the II-II sectional view of Fig. 2.

Fig. 5 is the sectional view that represents an example of fixed form between the sheet of the elastomeric element for bonding area rate is suppressed lowlyer.

Fig. 6 (a)～Fig. 6 (c) is the schematic diagram that represents variation of the present invention.

Detailed description of the invention

Below, based on this, preferred embodiment and with reference to accompanying drawing the present invention will be described.

As shown in Figure 2, below the Breeches type disposable diaper 1(of an embodiment of the invention, be called diaper 1) there is exterior body 11 and be fixed on the absorbent main body 10 of the skin face side of this exterior body 11.

Diaper 1 has: the A of veutro portion that is disposed at wearer veutro when wearing; When wearing, be disposed at the drosal part B of wearer dorsal part; And between the A of veutro portion and drosal part B and be disposed at the crotch C of portion between the leg of wearer while wearing.

The longitudinal direction of diaper (pants type absorptive article) is the direction that arrives drosal part B from the A of veutro portion via crotch C, i.e. Y-direction in Fig. 2. In addition, the width of diaper (pants type absorptive article) is the direction of intersecting with above-mentioned longitudinal direction, i.e. directions X in Fig. 2. In the diaper 1 of expansion and elongation state, the width X of diaper 1 and above-mentioned longitudinal direction Y are orthogonal. The longitudinal direction of absorbent main body and width are respectively the directions corresponding with longitudinal direction, the width of pants type absorptive article. In addition, the A of veutro portion and drosal part B separately in, the longitudinal direction of pants type absorptive article be dress time above-below direction, therefore, in the longitudinal direction of the A of veutro portion and drosal part B, all waist edge of opening W side is called to upside, crotch C side is called to downside.

As shown in Figure 2 to 4, exterior body 11 has outer-skin sheet 12, inner layer piece 13 and supplementary plate 15. In addition, forming the sheet material of outer-skin sheet 12 has at waist edge of opening W place to skin face side and turns back and return portion 12a, the 12b of the outer-skin sheet 12 that forms. Outer-skin sheet 12 and inner layer piece 13 respectively across the A of veutro portion, crotch C and drosal part B be connected to form, supplementary plate 15 disposes respectively one at drosal part B and the A of veutro portion.

Outer-skin sheet 12 forms the outer surface of diaper 1, and inner layer piece 13 and outer-skin sheet 12 are disposed at the skin face side of this outer-skin sheet 12 adjacently. Supplementary plate 15 is positioned at the skin face side of inner layer piece 13, and extends across the upper and lower of the longitudinal direction end of absorbent main body 10. Skin face be in the two sides of each in the time dressing pants type absorptive article towards the face of wearer skin side.

As shown in Figure 1, in exterior body 11, the edge, both sides of the A of veutro portion and the edge, both sides of drosal part B are bonded with each other, and utilize this joint, are formed with a pair of side seal S of portion, S, waist peristome 5 and pair of leg peristome 6,6 at diaper 1. Waist edge of opening W is the periphery of waist peristome 5. As shown in Figure 2, exterior body 11 is formed as the hourglass-shaped shape that longitudinal direction central portion shrinks in the diaper 1 of expansion and elongation state.

As shown in Figure 2 to 4, the A of veutro portion of diaper 1 and drosal part B have respectively outer-skin sheet 12, inner layer piece 13 and supplementary plate 15 overlapping waist region A2, B2. Having up and down along territory, lumbar region A1, the B1 of waist edge of opening W and crotch region A3, B3 partially of the A of veutro portion and drosal part B waist region A2, B2 separately.

Below, the stacked state of the sheet of the exterior body 11 to diaper 1 further describes. In addition, in Fig. 3 and Fig. 4, represent the A of the veutro portion side of diaper, but the drosal part B side of the diaper 1 of present embodiment also has same structure. Therefore, below, with reference to Fig. 3 and Fig. 4, the structure of the A of veutro portion and drosal part B is described.

In the diaper 1 of present embodiment, as shown in Figure 3, the A of veutro portion and drosal part B waist region A2, B2 is separately on the longitudinal direction of the A of veutro portion or drosal part B, the region between the position of the upper end 13u of inner layer piece 13 and the position of the lower end 15d of supplementary plate 15. The lower end 15d of supplementary plate 15 is positioned at from the longitudinal direction end 10a of absorbent main body 10 the scope below the above 80mm of 5mm on crotch direction, be preferably placed in the scope below the above 50mm of 5mm, for example, be positioned at the scope of 5～80mm, be preferably placed in the scope of 5～50mm. , the length L 3(of the longitudinal direction Y of the overlapping part of supplementary plate 15 and absorbent main body 10 is with reference to Fig. 3) in this number range. Hinder the viewpoint of wearing feeling from preventing the disengaged region of supplementary plate 15 from rolling in the time wearing off, more than in the region that the position of the lower end 15d of supplementary plate 15 engages with supplementary plate 15 and absorbent main body 10, the separating distance by the position of crotch side is preferably 0mm, and be preferably below 30mm, more preferably below 20mm, for example, be preferably 0～30mm, more preferably 0～20mm. In addition, in the present embodiment, the crotch C side edge of supplementary plate 15 does not engage with absorbent main body 10.

And, as shown in Figure 3 and Figure 4, by waist region A2, B2 4 deciles on longitudinal direction of the A of veutro portion or drosal part B, when the middle section E that is divided into the upper area D that is made up of Yi Ge region, upper end, be made up of two regions of central authorities and the lower end area F being made up of Yi Ge region, lower end, the A of veutro portion and the drosal part B of the diaper 1 of present embodiment have following structure.

, at least, between the inner layer piece 13 and supplementary plate 15 of middle section E, dispose inner side elastomeric element 71 along width X. In other words, preferably, between inner layer piece 13 and supplementary plate 15, dispose inner side elastomeric element 71 along width X, inner side elastomeric element 71 is at least disposed at middle section E. As shown in Figure 3 and Figure 4, compartment of terrain is preferably set in the Y direction in middle section E and disposes multiple inner sides elastomeric element 71.

In the example shown in Fig. 3 and Fig. 4, dispose 3 inner side elastomeric elements 71 at middle section E, also dispose 1 inner side elastomeric element 71 in the boundary of upper area D and middle section E. In addition, the inner side elastomeric element 71 of diaper 1 spreads all over the configuration endlong of the directions X of the A of veutro portion, under elongation state, configures and is fixed between inner layer piece 13 and supplementary plate 15. In addition, the number that is disposed at the inner side elastomeric element 71 of waist region A2, B2 is preferably more than two, more preferably more than 3, and is preferably below 12, more preferably, below 9, for example, is preferably 2～12, more preferably 3～9. In addition, the number that is disposed at the inner side elastomeric element 71 of the middle section E of waist region A2, B2 is preferably more than 1, and more preferably two more than basis, and be preferably below 6, more preferably, below 4, for example, be preferably 1～6, more preferably 2～4.

In addition, in waist region A2, B2, the bonding area rate between upper area D and lower end area F supplementary plate 15 and inner layer piece 13 or absorbent main body 10 is separately higher than this bonding area rate of central territory E. The difference of this bonding area rate is preferably more than 40%, more preferably more than 60%.

More specifically, at upper area D, the junction surface 21 of the Rack engaging via bonding agent between supplementary plate 15 and inner layer piece 13 forms in the mode of extending on directions X. At lower end area F, the junction surface 23 of the Rack engaging via bonding agent between supplementary plate 15 and inner layer piece 13 or absorbent main body 10 also forms in the mode of extending on directions X. In contrast, as shown in Figure 5, in the major part of middle section E, only engage supplementary plate 15 and inner layer piece 13 via the bonding agent 16 that is coated on inner side elastomeric element 7. Be formed with each other unassembled disengaged region M between supplementary plate 15 and inner layer piece 13 at the inner side of adjacency elastomeric element 71.

Upper area D, middle section E and lower end area F bonding area rate (the bonding area rate between supplementary plate and inner layer piece or absorbent main body) is separately measured as described below.

The assay method > of < bonding area rate

Whole area separately of upper area D, middle section E and lower end area F (launch and elongation state overlook area) is made as to region area S1, and the area of the part that supplementary plate 15 in this region area S1 is engaged with inner layer piece 13 or absorbent main body 10 is made as bonding area S2. Then, utilize following formula (1) to try to achieve bonding area rate (%).

Bonding area rate (%)=(bonding area S2/ region area S1) × 100 ... (1)

Bonding area S2 is the area of part that engages with inner layer piece 13 of supplementary plate 15 and the total area of the area of the part that supplementary plate 15 engages with absorbent main body 10.

In addition, in one or both of supplementary plate 15 and inner layer piece 13 or absorbent main body 10 with pattern adhesive-applyings such as spiral, striped, point (dispersed), ripples (swash shape), utilize this bonding agent to engage in the supplementary plate 15 in empennage portion and the situation between inner layer piece 13 or absorbent main body 10, the area of bonding agent coating part is made as to bonding area. But, applying in multiple bonding agents with patterns such as striped, point (dispersed), ripples (swash shape), the part of interval each other in 5mm regarded as between this pattern and is also engaged. In addition, in the case of the coating of the uncoated portion of bonding agent being surrounded by adhesive applicating portion with spiral pattern etc., regard the uncoated portion of bonding agent as and be also engaged.

In the time utilizing the commercially available each area of products measure, can measure by following method.

First, commercially available product is become and launch and elongation state, sprinkle toner. Then, remove toner by blowing. Then observe the adhesive applicating portion after painted by toner.

Then, on this product, place OHP film, the profile of transfer printing adhesive applicating portion. The Japanese ROPER of special-purpose software (Image-ProPlus:(Co., Ltd) society that can measure area to its use manufactures), by engraving on the imagery exploitation scanner typing PC of OHP film, ask for each area.

In addition, between the outer-skin sheet 12 and inner layer piece 13 of waist region A2, B2, there is disengaged region R2 with the overlapping region of region R1 that arranges of the inner side elastomeric element 71 of middle section E.

More specifically, as shown in Figure 3, Figure 4, inner side elastomeric element 71 is not engaged with outer-skin sheet 12, and inner side elastomeric element 71 is fixed between inner layer piece 13 and supplementary plate 15, thus, in waist region A2, B2, between outer-skin sheet 12 and inner layer piece 13, be formed with in the Y direction unassembled disengaged region R2 continuously. The disengaged region R2 of present embodiment at the upside of Y-direction from middle section E until upper area D. At the downside of Y-direction, the end of disengaged region R2 is roughly consistent with the position of the boundary portion of middle section E and lower end area F. In addition, on directions X, the two ends of directions X are positioned near the S of side seal portion or its, and spread all over the roughly whole width of the A of veutro portion.

In addition, as shown in Figure 3 and Figure 4, the inner face that arranges region R1 region R3 closer to the top (skin face) of elastomeric element 71, is fixed with waist elastomeric element 51 inside the ratio in outer-skin sheet 12. And, not the length of the number of waist elastomeric element 51 or longitudinal direction Y over half not overlapping with inner layer piece 13. More specifically, in the diaper 1 of present embodiment, at above-mentioned zone R3, the state configuration that multiple (in illustrative example being 5) waist elastomeric element 51 extends to spread all over the whole width of width of the A of veutro portion. By the contraction of this waist elastomeric element 51, form waist gauffer at the circumference of waist peristome 5, to improve the property next to the skin of waist peristome. But the upper end 13u of inner layer piece 13 is positioned in the Y direction than the waist elastomeric element 51 of lower side position more on the lower, inner layer piece 13 is all not overlapping with arbitrary waist elastomeric element 51. Thus, in the present embodiment, with the number of the overlapping waist elastomeric element 51 of inner layer piece 13 be zero, waist elastomeric element 51 100% not overlapping with inner layer piece 13. In addition, the longitudinal direction length of waist elastomeric element refers to, in the situation that disposing multiple waist elastomeric element, the distance between the lower end of the waist elastomeric element of the upper end of the waist elastomeric element of top side and lower side is as longitudinal direction length. In the case of the waist elastomeric element that disposes a sheet, the distance between its upper end and downside is as the longitudinal direction length of waist elastomeric element. In the present embodiment, 100% of the length of the longitudinal direction Y of waist elastomeric element 51 is not overlapping with inner layer piece 13. Preferably inner layer piece 13 is above not overlapping with the half (=50%) of the number of waist elastomeric element 51 or the length of longitudinal direction Y, from the viewpoint that prevents near the irregular contraction of the generation 13u of the upper end of inner layer piece 13, do not make the outward appearance of floating the G of portion worsen, more preferably inner layer piece 13 is completely not overlapping with waist elastomeric element 51.

In addition, the waist elastomeric element 51 of the diaper 1 of present embodiment is the same with above-mentioned inner side elastomeric element 71, is only engaged between outer-skin sheet 12 and inner layer piece 13 via the bonding agent that is coated on elastomeric element 51. Be formed with each other unassembled disengaged region between outer-skin sheet 12 and inner layer piece 13 at the waist elastomeric element 51 of adjacency. In addition, waist elastomeric element 51 preferably disposes multiple in the Y direction spaced apartly. The number that is disposed at the waist elastomeric element 51 of the A of veutro portion and drosal part B is preferably respectively more than 3, more preferably more than 4, and is preferably below 15, more preferably, below 12, for example, is preferably 3～15, more preferably 4～12.

In addition, the length that the lower end area F side of supplementary plate 15 spreads all over below the above 50mm of 5mm of longitudinal direction Y engages with absorbent main body 10. More specifically, in the diaper 1 of present embodiment, as shown in Figure 3 and Figure 4, be formed with above-mentioned junction surface 23 at lower end area F. Utilize the bonding agent that forms this junction surface 23, the supplementary plate 15 of lower end area F stresses to splice with the skin face of absorbent main body 10 and closes. In the situation that adult uses diaper, make the length L 10 of Y-direction of the part that supplementary plate 15 engages with absorbent main body 10 for more than 5mm, the structure destruction can prevent from putting on reliably thus time. In addition, by being below 50mm, can prevent that the elongated and absorption region of the length overlapping with absorbent main body from reducing, become and be easy to leak from front and back. More than above-mentioned length L 10 is preferably 10mm, more preferably more than 15mm, and be preferably below 45mm, more preferably, below 30mm, for example, be preferably 10～45mm, more preferably 15～30mm. In the situation that child uses diaper, more than being preferably 10mm, more preferably more than 15mm, and be preferably made as below 30mm, more preferably, below 25mm, for example, be preferably made as 10～30mm, more preferably 15～25.

At the inclined to one side crotch region A3 of the A of veutro portion of the diaper 1 of present embodiment, dispose multiple bottom elastomeric elements 91 that extend on directions X in the Y direction spaced apartly.

As shown in Figure 4, bottom elastomeric element 91 engages with the inner surface (skin face) of outer-skin sheet 12. More specifically, bottom elastomeric element 91 is engaged between the outer-skin sheet 12 and inner layer piece 13 of each bottom elastomeric element 91 of clamping via bonding agent.

The state configuration that preferably bottom elastomeric element 91 is cut apart with left and right at the directions X central portion of inclined to one side crotch region A3, B3. , preferably crotch region A3, B3 manifest contractility in the foreign side of absorbent main body 10 both side edges partially. On the other hand, preferably there is with the overlapping directions X central portion of absorbent main body 10 the non-retractility region that bottom elastomeric element 91 does not manifest contractility. Partially the non-retractility region of crotch region A3, B3 also can be unworthy of depositing portion's elastomeric element 91, also can be configured to bottom elastomeric element 91 and do not show the state of retractility. For example, non-retractility region also can be positioned at bottom elastomeric element 91 to produce the cut position of mode of multiple parts of being disengaged of elongation state.

The number that is disposed at the bottom elastomeric element 91 of inclined to one side crotch region A3 is preferably more than 3, more preferably more than 5, and is preferably below 15, more preferably, below 10, for example, is preferably 3～15, more preferably 5～10. At this, as shown in the embodiment, at bottom elastomeric element 91, on directions X in divided situation, the number of bottom elastomeric element 91 is that two of left and right are combined and are counted as 1.

Also dispose leg elastic members 61 at exterior body 11. Leg elastic members 61 is positioned at the mode curved configuration of crotch C in the center side of the A of veutro portion or drosal part B and directions X with the two-end part of directions X. Leg elastic members 61 is disposed between outer-skin sheet 12 and inner layer piece 13 with elongation state, forms along the leg leg gauffer of contraction around in the leg opening portion 6,6 of diaper 1.

Bottom elastomeric element 91 and leg elastic members 61 are engaged at the bonding agent applying on via the sheet at one or both between two sheets of adjacency respectively, the middle position between elastomeric element and elastomeric element, and sheet is also engaged each other.

As shown in Figures 2 and 3, absorbent main body 10 is rectangular shape longer in the direction identical with the longitudinal direction (Y-direction) of diaper, has: the positive dough sheet 2 of liquid permeability; The back sheet 3 of opaque liquid or difficult liquid permeability (water-repellancy etc.) and insertion are disposed at the absorber 4 of the liquid retainability between two sheets 2,3. Absorber 4 has: comprise the absorbent core of the aggregate (can be also nonwoven) of the fibers such as paper pulp fiber, or the absorbent core 40 that keeps therein the particle of water absorbent polymer to form; Clad sheet 46 with coated this absorbent core 40. Absorber 4 is also formed as the rectangular shape of growing in the Y direction. Absorbent core 40 is preferably long-pending fibre (fiberstacking) thing of fluffed pulp (fluffedpulp) or the fine thing of the mixed product of fluffed pulp and water absorbent polymer. In addition, as clad sheet 46, can use various known sheet materials, such thin paper or the nonwoven of water penetration etc. of such as lining paper (tissuepaper) preferably used. Clad sheet 46 can, by skin face side and the non-skin face side of the coated absorbent core 40 of different separately sheets, also can be coated by a sheet skin face side and the non-skin face side of absorbent core 40.

In addition, in this diaper 1, as shown in Figure 2, in the left and right sides of the length direction of absorbent main body 10, be formed with the side pad 8,8 being formed by liquid repellence or water-repellancy and poromeric material. Near the free end of each side pad 8, dispose multiple sides pad elastomeric element 81 with elongation state. Side pad 8 erects to stop the outflow of liquid to side in the time that diaper is dressed.

The diaper 1 of present embodiment is the same with existing Breeches type disposable diaper, and leg is passed through after leg opening portion 6,6, hauls near lifting territory, lumbar region, can easily wear thus.

According to the diaper 1 of present embodiment, as mentioned above, elastomeric element 71 inside at least disposing between the inner layer piece 13 of middle section E and supplementary plate 15. And then the bonding area rate between inner layer piece 13 and the supplementary plate 15 of this middle section E is lower. Therefore, supplementary plate 15 and inner layer piece 13 can hardening, the soft-touch of the inner surface side of diaper 1, and also the stickiness of skin to wearer is also excellent.

And, between outer-skin sheet 12 and inner layer piece 13, there is disengaged region R2. Thus, outer-skin sheet 12 is easily heaved to the foreign side of diaper, and what formation was floated from inner layer piece 13 floats the G of portion. So the skin soft-touch of the outer surface of diaper, is also easy to bring soft impression to people in appearance.

Float the G of portion and play the effect as external force buffer area. That is, even in the time that wearer moves, due to from coat externally applied forces etc., produce in outer-skin sheet 12 that pull shrinks or distortion, owing to floating the existence of the G of portion, cause producing in outer-skin sheet 12 that pull shrinks or the external force of distortion is also difficult to be delivered to inner layer piece 13. Therefore, can suppress, because external force produces the mobile or distortion such as dislocation at diaper, can obtain excellent wearing feeling etc. In addition, float the G of portion by formation, the outward appearance of diaper 1 is endowed soft impression, improves the aesthetic property of diaper 1.

And, in the diaper 1 of present embodiment, float the G of portion exist up and down waist direction shrink waist elastomeric element 51 and bottom elastomeric element 91. The solid figure of therefore, floating the G of the portion excellence that becomes second nature. And it is fixing that the utilization such as the sheet inner side elastomeric element 71 that is positioned at the skin face side of floating the G of portion and skin are close to, and therefore, floats the G of portion and be difficult for all around bias unevenly, the not fragile solid forming that floats the G of portion. When this ， Walk of Yin is capable or when the action of standing up or sitting down etc., all can realize reliably the external force buffering effect that floats the G of portion, can prevent the reduction of wearing feeling etc.

In addition, in the case of the bonding area rate entirety of the inner layer piece 13 of waist region A2, B2 and supplementary plate 15 is reduced, while lifting near hauling territory, lumbar region A1, B1, between sheet, produce and peel off, the structure destruction of diaper easily occurs. But in the diaper 1 of present embodiment, the bonding area rate of lower end area F is relatively high compared with middle section E, and in lower end area F, supplementary plate 15 engages with absorbent main body 10 is overlapping. Therefore,, while lifting, can effectively prevent that supplementary plate 15 from peeling off or because this peels off the structure destruction that causes diaper from inner layer piece 13 near hauling territory, lumbar region A1, B1.

In addition, not inner layer piece 13 and waist elastomeric element 51 over half not overlapping, and also the bonding area rate of upper area D is relatively high compared with middle section E, can cushion thus the convergent force of waist elastomeric element 51. And, can prevent that the inhomogenous power that the contraction of waist elastomeric element 51 produces is delivered to middle section E. Thus, can prevent that the inner layer piece 13 of upper area D from shrinking brokenly and producing irregular wrinkle, or inner layer piece 13 is to inside and outside bending, can further improve reliably flexibility.

From obtaining more reliably the viewpoint of above-mentioned 1 or plural effect, the ratio of the bonding area rate of upper area D and the bonding area rate of middle section E (the former/the latter) be preferably more than 1.5, more preferably more than 2, and be preferably below 20, more preferably below 15, for example, be preferably 1.5～20, more preferably 2～15. The ratio of the bonding area rate of lower end area F and the bonding area rate of middle section E (the former/the latter) is preferably more than 1.2, more preferably more than 1.5, and is preferably below 15, more preferably, below 12, for example, is preferably 1.2～15, and more preferably 2～15.

From the same viewpoint, the length L 1 of the Y-direction of territory, lumbar region A1, B1 is preferably the more than 2% of pants type absorptive article total length L, more preferably more than 4%, and be preferably below 20%, more preferably below 15%, for example, be preferably 2～20%, more preferably 4～15%. From the same viewpoint, the length L 2 of the Y-direction of waist region A2, B2 is preferably the more than 5% of pants type absorptive article total length L, more preferably more than 7%, and be preferably below 17%, more preferably below 15%, for example, be preferably 5～17%, more preferably 7～15%.

In addition, the length of the above-mentioned Y-direction that arranges region R1 is preferably the more than 5% of equidirectional length L 2 of waist region A2, B2, more preferably more than 10%, and be preferably below 80%, more preferably below 60%, for example, be preferably 5～80%, more preferably 10～60%. The length of the Y-direction of above-mentioned disengaged region R2 is preferably the more than 40% of equidirectional length L 2 of waist region A2, B2, more preferably more than 50%, and be preferably below 85%, more preferably below 75%, for example be preferably 40～85%, more preferably 50～75%.

In addition, from the convergent force of buffering waist elastomeric element and bottom elastomeric element, prevent that inhomogeneous power is delivered to the viewpoint of middle section and improves the persistent viewpoint while dressing, the bonding area rate of upper area D and the bonding area rate of lower end area F are preferably respectively more than 15%, more preferably more than 30%, and be preferably below 90%, more preferably below 70%, for example, be preferably 15～90%, more preferably 30～70%. From the same viewpoint, the length (existing only in the length of the part of upper area D) of the Y-direction at the above-mentioned junction surface 21 of upper area D is preferably the more than 25% of length of the Y-direction of upper area D, more preferably more than 40%, and be preferably below 100%, more preferably below 80%, for example, be preferably 25～100%, more preferably 40～80%. The length of directions X is preferably the more than 60% of width W 1 between the side seal portion of the A of veutro portion or drosal part B, more preferably more than 80%, and is preferably below 100%, for example, is preferably 60～100%, and more preferably 80～100%.

In addition, from flexibility, retractility with float the viewpoint of the formative of the G of portion, the bonding area rate of middle section E is preferably more than 1%, more preferably more than 3%, and is preferably below 20%, for example, is preferably 1～20%, and more preferably 3～20%. From the same viewpoint, the length (existing only in the length of the part of lower end area F) of the Y-direction at the above-mentioned junction surface 23 of lower end area F is preferably the more than 20% of length of the Y-direction of lower end area F, more preferably more than 40%, and be preferably below 100%, more preferably below 80%, for example, be preferably 20～100%, more preferably 40～80%. The length of the directions X of lower end area F is preferably the more than 60% of width W 1 between the side seal portion of the A of veutro portion or drosal part B, more preferably more than 80%, and is preferably below 100%, for example, is preferably 60～100%, and more preferably 80～100%.

In addition, from obtain flexibility and high persistent viewpoint simultaneously, preferably the bonding area rate of upper area D is higher than the bonding area rate of lower end area F. In this case, be preferably the more than 20% of length of the Y-direction of lower end area F in the length (existing only in the length of the part of lower end area F) of the Y-direction at the above-mentioned junction surface 23 of lower end area F, more preferably more than 35%, be preferably below 95%, more preferably below 75%. From the same viewpoint, the ratio of the bonding area rate of upper area D and the bonding area rate of lower end area F (the former/the latter) be preferably more than 1.1, more preferably more than 1.3, and be preferably below 5.0, more preferably below 2.5, further more preferably below 2.3, for example, be preferably 1.1～5.0, more preferably 1.1～2.5, further more preferably 1.3～2.3.

In addition, in the diaper 1 of present embodiment, as shown in Figure 4, and the part that does not configure absorbent main body 10 in lower end area F, outer-skin sheet 12, inner layer piece 13 and supplementary plate 15 utilize the bonding agent being present between each integrated on thickness direction. Thus, further improve the persistence while wearing.

The length of outer-skin sheet 12, inner layer piece 13 and supplementary plate 15 Y-direction of integrated region R3 on thickness direction is preferably the more than 30% of length of the Y-direction of lower end area F, more preferably more than 50%, and be preferably below 100%, for example, be preferably 30～100%, more preferably 50～100%.

In addition, as shown in Figure 4, preferably in above-mentioned zone R3, do not configure elastomeric element. By not configuring elastomeric element at this region R3, can keep the flatness of each, and improve adhesive strength, therefore further improve the persistence while wearing.

In addition, in the diaper 1 of present embodiment, as shown in Figure 3, the bonding agent 21a that engages inner layer piece 13 and supplementary plate 15 in upper area D extends to the position more closer to the top than the upper end 13u of inner layer piece 13. Utilize the bonding agent 21a of this extension, outer-skin sheet 12, inner layer piece 13 and supplementary plate 15 near the upper end 13u of this inner layer piece 13 are integrated on thickness direction. By by integrated these 3 sheets, further improve the persistence while wearing.

In addition, in the diaper 1 of present embodiment, absorbent main body 10 possesses: by the coated tow sides of absorbent core 40 of clad sheet 46 and the absorber of two sides 4; Double-edged positive dough sheet 2 and the back sheet 3 of coated this absorber 4. Clad sheet 46 utilizes the bonding agent of pattern coating to engage with the tow sides of absorbent core 40. Meanwhile, in the extended part in the two ends of the length direction from absorbent core 40, clad sheet 46 utilizes bonding agent each other and engages. At the both ends of the length direction of absorbent main body 10, positive dough sheet 2 and back sheet 3 utilize bonding agent or other joint method to engage with above-mentioned clad sheet 46, or are utilizing bonding agent or other joint method to be bonded with each other from the further extended part of clad sheet.

In addition, absorbent core 40 has the notch 44 of V word or U-shaped at the both ends of Y-direction. This notch 44 improves the morphotropism of the end of absorbent core 40, improves the property next to the skin to wearer. Supplementary plate 15 in above-mentioned lower end area F is at the central portion of the directions X of diaper 1, has and the part 15c that exists the part (region overlapping with notch) of notch 44 to engage in the inside of absorbent main body 10. In the both sides of the part 15c of this joint, have respectively and the part 15s, the 15s that in the inside of this absorbent main body 10, exist the part (region overlapping with absorbent core) of absorbent core 40 to engage.

Thus, while stretching upward supplementary plate 15 due to wearing action, the tensile force that puts on supplementary plate 15 is dispersed to the periphery of notch 44, is difficult for the structure destruction of the periphery that produces absorbent cores 40 and absorbent cores 40.

In addition, the part 15s, the 15s that engage with the existing part of absorbent core 40 of absorbent main body 10, overlapping with the part 45,45 of both sides that is positioned at notch 44 in the end of absorbent core 40. In addition, from be difficult to the viewpoint of the structure destruction that produces absorbent commodity in the time putting on, preferred above-mentioned part 15c and above-mentioned part 15s, 15s respectively be present in notch 44 or be positioned at the component parts of the absorbent main body 10 of the part 45,45 of the both sides of notch 44, the joints such as for example positive dough sheet 2 or clad sheet 46.

In addition, the absorbent core 40 shown in Fig. 2 has the middle absorbent core 41 that is positioned at width central authorities and the sidepiece absorbent cores 42 that is positioned at middle absorbent core 41 both sides. But absorbent core 40 also can only be made up of the middle absorbent core 41 without sidepiece absorbent cores 42, can be also the width shrinking of the central portion of Y-direction in middle absorbent core 41 now, also shrinking not.

The formation material of the each several part to above-mentioned diaper 1 describes.

Form with sheets etc. as positive dough sheet 2, back sheet 3, absorber 4 and side pad 8, be not particularly limited, can use various of all the time using in the absorbent commodities such as disposable diaper etc. For example, as positive dough sheet 2, can use nonwoven or the apertured film etc. of single or multiple lift structure. As back sheet 3, can use the laminated body of resin molding or resin molding and nonwoven etc. Back sheet 3 can have poisture-penetrability, also can not have poisture-penetrability.

In addition, as outer-skin sheet 12, inner layer piece 13, supplementary plate 15, be all not particularly limited, can use the various sheet materials that all the time use in the absorbent commodities such as disposable diaper, but preferably use nonwoven. As nonwoven, preferably the single-layer nonwoven of hot-wind nonwoven cloth, hot-rolling nonwoven, spunlace non-woven cloth, spun-bonded non-woven fabrics, melt spraying non-woven fabrics or by two-layer their laminations above and lamination nonwoven etc. In addition, as outer-skin sheet 12, inner layer piece 13, supplementary plate 15, also can use by nonwoven and film integrated and sheet etc.

Outer-skin sheet 12, inner layer piece 13 and supplementary plate 15 are respectively spun-bonded non-woven fabrics, and being particularly preferably weight per unit area is 20g/m²Following spun-bonded non-woven fabrics.

By using the spun-bonded non-woven fabrics of hot strength excellence, can reduce by the weight per unit area of each. By reducing the rigidity of sheet, float the formative of the G of portion, improve for the shape stability that maintains the external force buffering effect that floats the G of portion. In addition, weight per unit area is 20g/m²The flatness of following spun-bonded non-woven fabrics is also excellent, and therefore, the cementability of sheet each other or between the parts of sheet and elastomeric element improves. And, can reduce the use amount of bonding agent, therefore also can realize the raising of the flexibility of floating the G of portion, diaper 1. From improving the viewpoint of hot strength of diaper 1, preferably the weight per unit area of outer-skin sheet 12 is identical or larger than it with the weight per unit area of inner layer piece 13 and supplementary plate 15. According to the diaper 1 of present embodiment, as outer-skin sheet 12, even be the spun-bonded non-woven fabrics of hard nonwoven in the case of using general, float the solid forming of the G of portion, and can give soft impression to outward appearance.

Spun-bonded non-woven fabrics is preferably implemented super-soft processing. As super-soft processing, except the embossing processing to nonwoven coating softening agent, while manufacturing, can also enumerate to material resin kneading softening agent etc.

In addition, preferably as outer-skin sheet 12, inner layer piece 13 and supplementary plate 15, particularly outer-skin sheet 12, use the sheet of non-extensibility. " sheet of non-extensibility " preferably at least the maximum elongation degree of the width (directions X) of diaper (pants type absorptive article) be (length only extends to 1.1 times) below 10%.

The assay method > of < maximum elongation degree

Prepare the sample strip of length 50mm, width 25mm, use omnipotent puller system (Tensilon) device fixed sample sheet between chuck. With the speed of 300mm/min, it is extended, using the elongation in the moment of fracture as maximum elongation degree. The moment of fracture is that tensile load represents peaked point in the relation curve of percentage elongation and load.

As the formation material of elastomeric element 51,61,71,81,91, for example, can enumerate: the synthetic rubber such as styrene-butadiene, butadiene, isoprene, neoprene, natural rubber, EVA, retractility polyolefin, polyurethane etc. As the pattern of elastomeric element, can preferably adopt cross section is rectangle, square, circle, ellipse or polygon-shaped etc. thread (rubber covered wire etc.) or the thread pattern of banded (flat rubber etc.) pattern or various arrangement type etc.

Above, be preferred embodiment illustrated the present invention is based on it, but the invention is not restricted to above-mentioned embodiment, can suitably change.

For example, outer-skin sheet 12, inner layer piece 13 and supplementary plate 15 do not need to form separately respectively, yet 1 sheet can be turned back and are formed.

For example, also can for example as shown in Fig. 6 (a)～Fig. 6 (c), change at the layer-by-layer state of the sheet of the exterior body of the A of veutro portion and/or drosal part B. In Fig. 6 (a)～Fig. 6 (c), represent the layer-by-layer state of the A of veutro portion, but drosal part B can be also the structure same with the A of veutro portion.

In the exterior body 11A shown in Fig. 6 (a), there is not the supplementary plate 15 separating with outer-skin sheet 12. Return portion 12a, the 12b of outer-skin sheet 12 forms the supplementary plate across the upper downward-extension of the longitudinal direction end of absorbent main body.

Exterior body 11B shown in Fig. 6 (b) does not have return portion 12a, the 12b of outer-skin sheet. Supplementary plate 15 with the outer surface side from outer-skin sheet 12 until the mode of the inner surface side of inner layer piece 13 configure.

In the exterior body 11C shown in Fig. 6 (c), supplementary plate 15 is stacked in the skin face side of the return portion 12a of outer-skin sheet 12. Waist elastomeric element 51 engages and is fixed between outer-skin sheet 12 and its return portion 12a, 12b, and between outer-skin sheet 12 and supplementary plate 15.

In addition, in the diaper 1 of above-mentioned embodiment, there is outer-skin sheet, inner layer piece and supplementary plate overlapping waist region A2, B2 the both sides of drosal part B and the A of veutro portion. In addition, there is Fig. 3 and upper area D, middle section E and the lower end area F of structure as shown in Figure 4. But, also can be only there is waist region A2, Fig. 3 and upper area D, middle section E and the lower end area F of structure as shown in Figure 4 at the A of veutro portion. In this case, drosal part B also can only have the structure with reference to any part in the structure of the A of veutro portion of Fig. 3 and Fig. 4 explanation.

In addition, in exterior body, replace outer-skin sheet 12 and inner layer piece 13 respectively across the A of veutro portion, crotch C and the drosal part B structure of setting continuously, also can adopt the structure that is separated from each other the sheet of (mutually different) at the A of veutro portion and drosal part B configuration. Sheet is separately 1 or two sheets that are selected from outer-skin sheet 12 and inner layer piece 13.

In addition, pants type absorptive article, except the Breeches type disposable diaper of child or adult's use, can be also pants type sanitary napkin etc.

Part that in an above-mentioned embodiment, description thereof is omitted and the only part that has in one embodiment, can be applicable to respectively other embodiment. In addition, suitably phase double replacement between embodiment of the part in each embodiment.

About above-mentioned embodiment, the present invention is open following mode further.

< 1 > pants type absorptive article, it has exterior body and is fixed on the absorbent main body of the skin face side of this exterior body, and have from veutro portion via crotch until the longitudinal direction of drosal part and the width that intersects with this longitudinal direction, wherein

The above-mentioned exterior body of veutro portion has: outer-skin sheet; Be positioned at the inner layer piece of the skin face side of this outer-skin sheet; Be positioned at the skin face side of this inner layer piece and step up the supplementary plate of stating longitudinal direction end upper and lower of absorbent main body and extend,

By waist region overlapping to above-mentioned outer-skin sheet, above-mentioned inner layer piece and above-mentioned supplementary plate quartering on above-mentioned longitudinal direction, be divided into: the upper area being formed by Yi Ge region, upper end; By two middle sections that region forms of central authorities; With the lower end area being formed by Yi Ge region, lower end, now,

At least, between the above-mentioned inner layer piece and above-mentioned supplementary plate of above-mentioned middle section, dispose inner side elastomeric element along above-mentioned width,

Bonding area rate between above-mentioned upper area and lower end area above-mentioned supplementary plate and above-mentioned inner layer piece or above-mentioned absorbent main body is separately higher than this bonding area rate of above-mentioned middle section,

Between above-mentioned outer-skin sheet and above-mentioned inner layer piece, there is disengaged region with the region that arranges region overlapping of the above-mentioned inner side elastomeric element of above-mentioned middle section,

The lower end of above-mentioned supplementary plate is positioned at from the longitudinal direction end of above-mentioned absorbent main body the scope below the above 80mm of 5mm on crotch direction, and spreads all over length below the above 50mm of 5mm on above-mentioned longitudinal direction and engage with above-mentioned absorbent main body.

The pants type absorptive article that < 2 > are recorded as above-mentioned < 1 >, wherein, on than the skin face that arranges the above-mentioned outer-skin sheet in region closer to the top, region of above-mentioned inner side elastomeric element, be fixed with waist elastomeric element, the number of this waist elastomeric element or the length of above-mentioned longitudinal direction over half not overlapping with above-mentioned inner layer piece.

The pants type absorptive article that < 3 > are recorded as above-mentioned < 2 >, wherein, above-mentioned waist elastomeric element and above-mentioned inner layer piece do not have overlapping completely.

< 4 > are as pants type absorptive article that in above-mentioned < 1 >～< 3 >, any one is recorded, in above-mentioned exterior body, the edge, both sides of above-mentioned veutro portion and the edge, both sides of above-mentioned drosal part are bonded with each other, form a pair of side seal portion by this joint, wherein

The junction surface of the Rack engaging via bonding agent between the above-mentioned supplementary plate of above-mentioned upper area and above-mentioned inner layer piece is in the upper formation of above-mentioned width (directions X).

The pants type absorptive article that < 5 > are recorded as above-mentioned < 4 >, wherein, the length of the above-mentioned width (directions X) at the junction surface of above-mentioned upper area is the more than 60% of width between above-mentioned a pair of side seal portion, be preferably more than 80%, and be below 100%.

< 6 > are as pants type absorptive article that in above-mentioned < 1 >～< 5 >, any one is recorded, wherein, the more than 25% of above-mentioned longitudinal direction (Y-direction) length that the length of the above-mentioned longitudinal direction (Y-direction) at the junction surface of above-mentioned upper area is above-mentioned upper area, be preferably more than 40%, and be, below 100%, to be preferably below 80%.

< 7 > are as pants type absorptive article that in above-mentioned < 1 >～< 6 >, any one is recorded, the junction surface of the Rack wherein, engaging via bonding agent between the above-mentioned supplementary plate of above-mentioned lower end area and above-mentioned inner layer piece or above-mentioned absorbent main body spreads all over above-mentioned width (directions X) entirety and forms.

The pants type absorptive article that < 8 > are recorded as above-mentioned < 7 >, wherein, the length of the above-mentioned width (directions X) at the junction surface of above-mentioned lower end area is the more than 60% of width between above-mentioned a pair of side seal portion, be preferably more than 80%, and be below 100%.

< 9 > are as pants type absorptive article that in above-mentioned < 1 >～< 8 >, any one is recorded, wherein, the more than 20% of above-mentioned longitudinal direction (Y-direction) length that the length of the above-mentioned longitudinal direction (Y-direction) at the junction surface of above-mentioned lower end area is above-mentioned lower end area, be preferably more than 35%, more preferably more than 40%, and be below 100%, be preferably below 95%, more preferably below 80%, further more preferably below 75%.

< 10 > are as pants type absorptive article that in above-mentioned < 1 >～< 9 >, any one is recorded, wherein, the bonding area rate of above-mentioned upper area and the bonding area rate of above-mentioned lower end area are respectively more than 15%, be preferably more than 30%, and be, below 90%, to be preferably below 70%.

< 11 > are as pants type absorptive article that in above-mentioned < 1 >～< 10 >, any one is recorded, wherein, the bonding area rate of above-mentioned middle section is more than 1%, be preferably more than 3%, and be below 20%.

< 12 > are as pants type absorptive article that in above-mentioned < 1 >～< 11 >, any one is recorded, wherein, above-mentioned supplementary plate in separately of above-mentioned upper area and lower end area and the bonding area rate between above-mentioned inner layer piece or above-mentioned absorbent main body, higher more than 40% than this bonding area rate in above-mentioned middle section, preferably high more than 60%.

< 13 > are as pants type absorptive article that in above-mentioned < 1 >～< 12 >, any one is recorded, wherein, the bonding area rate of above-mentioned upper area is more than 1.5 with the ratio of the bonding area rate of above-mentioned middle section, be preferably more than 2, and be, below 20, to be preferably below 15.

< 14 > are as pants type absorptive article that in above-mentioned < 1 >～< 13 >, any one is recorded, wherein, the bonding area rate of above-mentioned lower end area is more than 1.2 with the ratio of the bonding area rate of above-mentioned middle section, be preferably more than 1.5, and be, below 15, to be preferably below 12.

< 15 > are as pants type absorptive article that in above-mentioned < 1 >～< 14 >, any one is recorded, wherein, the above-mentioned bonding area rate of above-mentioned upper area is higher than the above-mentioned bonding area rate of above-mentioned lower end area.

< 16 > are as pants type absorptive article that in above-mentioned < 1 >～< 15 >, any one is recorded, wherein, the bonding area rate of above-mentioned upper area is more than 1.1 with the ratio of the bonding area rate of above-mentioned lower end area, be preferably more than 1.3, and be below 5.0, be preferably below 2.5, more preferably below 2.3.

< 17 > are as pants type absorptive article that in above-mentioned < 1 >～< 16 >, any one is recorded, wherein, the above-mentioned lower end of above-mentioned supplementary plate is positioned at from the longitudinal direction end of above-mentioned absorbent main body the position below the above 50mm of 5mm on crotch direction.

< 18 > are as pants type absorptive article that in above-mentioned < 1 >～< 17 >, any one is recorded, wherein, in the region that the above-mentioned lower end of above-mentioned supplementary plate engages with above-mentioned supplementary plate and above-mentioned absorbent main body, leaning on the separating distance of the position of crotch side is most more than 0mm and below 30mm, is preferably below 20mm.

< 19 > are as pants type absorptive article that in above-mentioned < 1 >～< 18 >, any one is recorded, wherein, the length of the longitudinal direction that above-mentioned supplementary plate and above-mentioned absorbent main body engage is more than above, the preferred 15mm of 10mm, the length below following, the preferred 30mm of 45mm.

< 20 > are as pants type absorptive article that in above-mentioned < 1 >～< 19 >, any one is recorded, wherein, being unworthy of in above-mentioned lower end area is set up the part of stating absorbent main body, and above-mentioned outer-skin sheet, above-mentioned inner layer piece and above-mentioned supplementary plate are integrated on thickness direction.

The pants type absorptive article that < 21 > are recorded as above-mentioned < 20 >, wherein, the more than 30% of above-mentioned longitudinal direction (Y-direction) length that the length of the above-mentioned longitudinal direction (Y-direction) in above-mentioned integrated region is above-mentioned lower end area, be preferably more than 50%, and be below 100%.

The pants type absorptive article that < 22 > are recorded as above-mentioned < 20 > or < 21 >, wherein, on thickness direction, in integrated region, do not configure elastomeric element at above-mentioned outer-skin sheet, above-mentioned inner layer piece and above-mentioned supplementary plate.

< 23 > are as pants type absorptive article that in above-mentioned < 20 >～< 22 >, any one is recorded, wherein, the bonding agent that engages above-mentioned inner layer piece and above-mentioned supplementary plate in above-mentioned upper area extends to the position more closer to the top than the upper end of this inner layer piece, via this bonding agent, above-mentioned outer-skin sheet, this inner layer piece and above-mentioned supplementary plate near the upper end of this inner layer piece are integrated on thickness direction.

< 24 > are as pants type absorptive article that in above-mentioned < 1 >～< 23 >, any one is recorded, wherein, in the inclined to one side crotch region of above-mentioned veutro portion, above-mentioned longitudinal direction (Y-direction) upper spaced apart dispose multiple at the upper bottom elastomeric elements that extend of above-mentioned width (directions X).

< 25 > are as pants type absorptive article that in above-mentioned < 1 >～< 24 >, any one is recorded, wherein, above-mentioned pants type absorptive article is upper and lower above-mentioned veutro portion and above-mentioned drosal part above-mentioned waist region separately, there is territory, lumbar region and above-mentioned inclined to one side crotch region along waist edge of opening

The length of the above-mentioned longitudinal direction (Y-direction) in territory, above-mentioned lumbar region is the more than 2% of above-mentioned pants type absorptive article total length, is preferably more than 4%, and is, below 20%, to be preferably below 15%.

< 26 > are as pants type absorptive article that in above-mentioned < 1 >～< 25 >, any one is recorded, wherein, the length of the above-mentioned longitudinal direction (Y-direction) in above-mentioned waist region is the more than 5% of above-mentioned pants type absorptive article total length, be preferably more than 7%, and be, below 17%, to be preferably below 15%.

The pants type absorptive article that < 27 > are recorded as above-mentioned < 26 >, wherein, the length of the above-mentioned longitudinal direction (Y-direction) that arranges region of the inner side elastomeric element of above-mentioned middle section is the more than 5% of above-mentioned longitudinal direction (Y-direction) length in above-mentioned waist region, be preferably more than 10%, and be, below 80%, to be preferably below 60%.

The pants type absorptive article that < 28 > are recorded as above-mentioned < 26 > or < 27 >, wherein, the length of the above-mentioned longitudinal direction (Y-direction) in above-mentioned disengaged region is the more than 40% of above-mentioned longitudinal direction (Y-direction) length in above-mentioned waist region, be preferably more than 50%, and be, below 85%, to be preferably below 75%.

< 29 > are as pants type absorptive article that in above-mentioned < 1 >～< 28 >, any one is recorded, wherein, the end that above-mentioned absorbent main body is included in abdomen lateral side has the absorbent core of the notch of V word or U word shape, the above-mentioned supplementary plate of above-mentioned lower end area has at item width direction central portion the part engaging with the region overlapping with this notch in above-mentioned absorbent main body, there is respectively the part engaging with the region overlapping with above-mentioned absorbent core in above-mentioned absorbent main body in its both sides.

< 30 > are as pants type absorptive article that in above-mentioned < 1 >～< 29 >, any one is recorded, wherein, above-mentioned outer-skin sheet, above-mentioned inner layer piece and above-mentioned supplementary plate form by spun-bonded non-woven fabrics.

< 31 > are as pants type absorptive article that in above-mentioned < 1 >～< 30 >, any one is recorded, wherein, above-mentioned pants type absorptive article for child with Breeches type disposable diaper, adult with Breeches type disposable diaper or pants type sanitary napkin.

Utilizability in industry

Pants type absorptive article of the present invention, the stickiness excellence of the skin to wearer, and the inner surface of pants type absorptive article and the equal softness of outer surface and skin sense of touch good, and in the time putting on, be difficult to produce the structure destruction of absorbent commodity.

Claims

1. a pants type absorptive article, the flesh that it has exterior body and is fixed on this exterior bodyThe absorbent main body of skin face side, and have from veutro portion via crotch until the longitudinal direction of drosal partWith the width intersecting with this longitudinal direction, this pants type absorptive article is characterised in that:

The described exterior body of veutro portion has: outer-skin sheet; Be positioned at the skin face side of this outer-skin sheetInner layer piece; Be positioned at the skin face side of this inner layer piece and the longitudinal direction end across described absorbent main bodyPortion upper and lower and the supplementary plate that extends,

By waist region overlapping to described outer-skin sheet, described inner layer piece and described supplementary plate describedThe quartering on longitudinal direction, is divided into: the upper area being made up of Yi Ge region, upper end; By central authoritiesTwo middle sections that region forms; With the lower end area being formed by Yi Ge region, lower end, now,

At least between the described inner layer piece and described supplementary plate of described middle section, along describedWidth disposes inner side elastomeric element,

Described supplementary plate separately of described upper area and lower end area and described inner layer piece or described inBonding area rate between absorbent main body is higher than this bonding area rate of described middle section,

Between described outer-skin sheet and described inner layer piece, with the described medial shell of described middle sectionThe region that arranges region overlapping of property parts has disengaged region,

In described upper area, between described supplementary plate and described inner layer piece, engage via bonding agent,The part that does not configure described absorbent main body in described lower end area, described outer-skin sheet, instituteState inner layer piece and the described supplementary plate utilization bonding agent one on thickness direction between eachChange,

The lower end of described supplementary plate is positioned at from the longitudinal direction end of described absorbent main body in crotchIn scope in direction below the above 80mm of 5mm, and spread all over the 5mm on described longitudinal directionLength ground below above 50mm engages with described absorbent main body.

2. pants type absorptive article as claimed in claim 1, is characterized in that:

Than the described skin in region closer to the top, region that arranges of described inner side elastomeric elementOn the skin face of sheet, be fixed with waist elastomeric element, the number of this waist elastomeric element or described longitudinal directionLength over half not overlapping with described inner layer piece.

3. pants type absorptive article as claimed in claim 1 or 2, is characterized in that:

Described upper area and lower end area described supplementary plate and described inner layer piece or the institute in separatelyState the bonding area rate between absorbent main body, than this bonding area rate in described middle sectionMore than high 40 percentage points.

4. pants type absorptive article as claimed in claim 3, is characterized in that:

Described upper area and lower end area described supplementary plate and described inner layer piece or the institute in separatelyState the bonding area rate between absorbent main body, than this bonding area rate in described middle sectionMore than high 60 percentage points.

5. pants type absorptive article as claimed in claim 2, is characterized in that:

Described waist elastomeric element and described inner layer piece do not have overlapping completely.

6. pants type absorptive article as claimed in claim 1 or 2, is characterized in that:

In described exterior body, the edge, both sides of described veutro portion and the edge, both sides of described drosal partBe bonded with each other, form a pair of side seal portion by this joint,

Between the described supplementary plate of described upper area and described inner layer piece, engage via bonding agentIt is directions X and forming that the junction surface of Rack spreads all over described width.

7. pants type absorptive article as claimed in claim 1 or 2, is characterized in that:

Between the described supplementary plate of described lower end area and described inner layer piece or described absorbent main bodyIt is the whole of directions X that the junction surface of the Rack engaging via bonding agent spreads all over described widthBody and forming.

8. pants type absorptive article as claimed in claim 1 or 2, is characterized in that:

The bonding area rate of described upper area and the bonding area rate of described lower end area are respectivelyMore than 15%.

9. pants type absorptive article as claimed in claim 8, is characterized in that:

The bonding area rate of described upper area and the bonding area rate of described lower end area are respectivelyMore than 30%.

10. pants type absorptive article as claimed in claim 1 or 2, is characterized in that:

The bonding area rate of described upper area and the bonding area rate of described lower end area are respectivelyBelow 90%.

11. pants type absorptive articles as claimed in claim 10, is characterized in that:

The bonding area rate of described upper area and the bonding area rate of described lower end area are respectivelyBelow 70%.

12. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The bonding area rate of described middle section is more than 1%.

13. pants type absorptive articles as claimed in claim 12, is characterized in that:

The bonding area rate of described middle section is more than 3%.

14. pants type absorptive articles as claimed in claim 13, is characterized in that:

The bonding area rate of described middle section is below 20%.

15. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The bonding area rate of described upper area with the ratio of the bonding area rate of described middle section is1.5 more than.

16. pants type absorptive articles as claimed in claim 15, is characterized in that:

The bonding area rate of described upper area with the ratio of the bonding area rate of described middle section isMore than 2.

17. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The bonding area rate of described upper area with the ratio of the bonding area rate of described middle section isBelow 20.

18. pants type absorptive articles as claimed in claim 17, is characterized in that:

The bonding area rate of described upper area with the ratio of the bonding area rate of described middle section isBelow 15.

19. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The bonding area rate of described lower end area with the ratio of the bonding area rate of described middle section is1.2 more than.

20. pants type absorptive articles as claimed in claim 19, is characterized in that:

The bonding area rate of described lower end area with the ratio of the bonding area rate of described middle section is1.5 more than.

21. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The bonding area rate of described lower end area with the ratio of the bonding area rate of described middle section isBelow 15.

22. pants type absorptive articles as claimed in claim 21, is characterized in that:

The bonding area rate of described lower end area with the ratio of the bonding area rate of described middle section isBelow 12.

23. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The described bonding area rate of described upper area is than the described bonding area of described lower end areaRate is high.

24. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The described lower end of described supplementary plate is positioned at from the longitudinal direction end of described absorbent main bodyPosition in crotch direction below the above 50mm of 5mm.

25. pants type absorptive articles as claimed in claim 1, is characterized in that:

The described longitudinal direction in described integrated region is that the length of Y-direction is described lower end areaThe more than 30% of length of described longitudinal direction.

26. pants type absorptive articles as claimed in claim 25, is characterized in that:

The described longitudinal direction in described integrated region is that the length of Y-direction is described lower end areaThe more than 50% of length of described longitudinal direction.

27. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The described longitudinal direction in described integrated region is that the length of Y-direction is described lower end areaBelow 100% of length of described longitudinal direction.

28. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

Integrated on thickness direction at described outer-skin sheet, described inner layer piece and described supplementary plateIn region, do not configure elastomeric element.

29. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The bonding agent that engages described inner layer piece and described supplementary plate in described upper area extends toThe position more closer to the top than the upper end of this inner layer piece, via this bonding agent, the upper end of this inner layer pieceNeighbouring described outer-skin sheet, this inner layer piece and described supplementary plate are integrated on thickness direction.

30. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

The end that described absorbent main body is included in abdomen lateral side has cutting of V word or U word shapeThe absorbent core of oral area, the described supplementary plate of described lower end area is at item width direction central portionThere is the part engaging with the region overlapping with this notch in described absorbent main body, at itBoth sides have respectively with the region overlapping with described absorbent core in described absorbent main body and engagePart.

31. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

Described outer-skin sheet, described inner layer piece and described supplementary plate form by spun-bonded non-woven fabrics.

32. pants type absorptive articles as claimed in claim 1 or 2, is characterized in that:

Described pants type absorptive article is for child is with Breeches type disposable diaper, adult's pantsType disposable diaper or pants type sanitary napkin.