CN106999320B

CN106999320B - Pants type absorptive article

Info

Publication number: CN106999320B
Application number: CN201580067070.1A
Authority: CN
Inventors: 恩田蓝子
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2014-12-24
Filing date: 2015-12-11
Publication date: 2018-09-25
Anticipated expiration: 2035-12-11
Also published as: CN106999320A; RU2639969C1; WO2016104184A1; AU2015368909B2; JP5960791B2; AU2015368909A1; AU2015368909B9; JP2016120018A

Abstract

The present invention provides a kind of absorbent commodity (1) including veutro chip part, the pants type of dorsal sheet member and absorbent main body, the first leakage-proof turnup (34) of the position in the both sides of absorbent main body with free end positioned at the lateral margin than absorber (33) in the inner part and the second leakage-proof turnup (37) extended more outward than the lateral margin of absorber (33).Positive dough sheet (31) and the first leakage-proof turnup (34), which have from the skin of absorber (33) to form the sheet material (35) of the first leakage-proof turnup (34) with respect to the return portion (31c) that surface side is turned back to non-skin with respect to surface side and in the non-skin than absorber (33) have with respect to the lateral margin position in the inner part of surface side, to be fixed on the upside fixed part (35u) of positive dough sheet (31) and is fixed on the downside fixed part (35d) of hypopleurite.Length (L1), length (L2), distance (L3) and distance (L4) meet (1) L1≤L2, (2) L2≤L1+L3 and (3) L3≤L4.

Description

Pants type absorptive article

Technical field

The present invention relates to pants type absorptive articles.

Background technology

At present it is known that a kind of pants type absorptive article comprising：Throughout the veutro for being configured at wearer veutro portion, It is configured at the crotch of the crotch part of wearer and is configured at the hourglass-shaped exterior body of the drosal part of the back side of wearer；It is fixed on The absorbent main body of the inner surface side of the exterior body, the both sides of the both sides edge of the exterior body of veutro portion and the exterior body of drosal part Edge engages, and forms a pair of of side seal portion, waist opening portion and a pair of of leg opening part.

In addition, as current pants type absorptive article, it is known that the Pant-type absorbent for the type that exterior body is separated Property article, exterior body be divided into configuration wearer veutro veutro chip part and configuration wearer back side back side piece Component, absorbent main body are fixed on veutro chip part and dorsal sheet member, also, the left and right of veutro chip part in a manner of setting up Both sides edge and the left and right sides edge of dorsal sheet member engaged in a pair of of side seal portion.(for example, referring to patent document 1).

Additionally, it is known that being leaked in order to prevent from the leg opening part of pants type absorptive article, it is arranged to dress in crotch The technology for the leakage-proof turnup that the skin side of person erects, in the both sides of crotch, leakage-proof turnup is arranged (with reference to patent document in bilayer respectively 2、3)。

Existing technical literature

Patent document

Patent document 1:Japanese Unexamined Patent Publication 2014-195631 bulletins

Patent document 2:Japanese Unexamined Patent Publication 2006-341061 bulletins

Patent document 3:Japanese Unexamined Patent Publication 2012-61138 bulletins

Invention content

The present invention provides a kind of pants type absorptive article comprising：Configure the veutro chip part in the veutro of wearer； Configure the dorsal sheet member in the back side of wearer；With the lengthwise for setting up and being fixed on the veutro chip part and the dorsal sheet member Absorbent main body, the veutro chip part and the dorsal sheet member engage, and forms a pair of of side seal portion, waist opening portion and a pair of of leg Portion opening portion.Above-mentioned absorbent main body has the absorber of the positive dough sheet and liquid retainability that form liquid absorption face, in length The both sides in direction are respectively provided with：First leakage-proof turnup of position of the free end positioned at the lateral margin than the absorber in the inner part；With The second leakage-proof turnup extended more outward than the lateral margin of the absorber.Above-mentioned positive dough sheet and above-mentioned first leakage-proof turnup are above-mentioned The outside of the both side edges of absorber, which has from the skin of the absorber, turns back with respect to surface side to the return portion of the opposite surface side of non-skin, Form sheet material the existing from the both sides genesis of the absorber in the opposite surface side of non-skin of the absorber of first leakage-proof turnup The position of interval on the inside of to width direction has the upside fixed part for being fixed on the positive dough sheet and is fixed under hypopleurite Side fixed part.It enabling the length from the above-mentioned return portion of above-mentioned first leakage-proof turnup to free end for L1, enabling above-mentioned second leakproof The length of the return portion from first leakage-proof turnup of flange to the free end of second leakage-proof turnup is L2, enables above-mentioned first to prevent Leak the distance between above-mentioned return portion and above-mentioned downside fixed part of flange be L3, enable the above-mentioned return portion of above-mentioned positive dough sheet with it is upper When the distance between fixed part is L4 on the upside of stating, meet whole relational expressions (1)~(4) below：

(1)L1≤L2

(2)L2≤L1+L3

(3)L3≤L4

(4)L4≤L1+L3。

Description of the drawings

Fig. 1 is the vertical of the use state (wearing effect) for the Breeches type disposable diaper for indicating one embodiment of the present invention Body figure.

Fig. 2 is the partial cutoff vertical view of the expansion for indicating Breeches type disposable diaper shown in FIG. 1 and elongation state.Institute Meaning is unfolded and elongation state refers to following states：The joint portion existing for the both sides of diaper (side seal portion) is torn, pants type is made Absorbent commodity becomes unfolded state, so that the elastomeric element of each section is extended, to make the absorbent commodity of the unfolded state expand It opens up as design size (identical as the size when excluding to be extended to planar in the state of the influence of all elastomeric elements).

Fig. 3 is the III-III line amplification sectional views of Fig. 2.

Fig. 4 is the main portion sectional view in the section along article transverse direction of the position for the straight line Pa for indicating Fig. 2.

Fig. 5 is the vertical view of the absorbent core of the variation for the generation type for indicating the non-long-pending fibre portion in side.

Specific implementation mode

The pants type absorptive article for the exterior body segmentation type that exterior body is partitioned from, the crotch due to absorption liquid Crotch is hung down when weight increases, and is easy tod produce gap between the leg week of wearer and leg opening part, is easy to happen Leakage feels the uneasiness of leakage even if leakage does not occur and will also result in.

In order to not generate gap leg week, consider the width for expanding crotch, but at this time leg from leg opening by appearance Yi Du is reduced, is easy to generate sense of discomfort in crotch.

In patent document 1, a kind of diaper of pants type is recorded, the crotch between anter and rear piece is being set up and be fixed on Portion's piece is provided with body fluid absorbing part and extends and have the leg week aileron of lateral area and inside region along the body fluid absorbing part, In outer side region configured with leg week elastomeric element.In addition, record in addition to the leg week configured with leg week elastomeric element is other than aileron, The content for the leakproof dike that can be erected to the skin of wearer is formed in the inner surface of crotch piece.But in patent document 1, It records so that the body fluid from the distance between free edge the basicosta portion of leakproof dike is no more than from leg week aileron is inhaled The peri position edge of receipts portion side to lateral area distance (with reference to claim 7, Fig. 6), at this point, leg from leg opening part by appearance Easily degree may be good, but the height of leakproof dike cannot substantially ensure, from preventing leakage and do not cause the uneasy sense to leakage It is for aspect and not good enough.

In addition, when the technology of patent document 2,3 to be used in the pants type absorptive article of exterior body segmentation type, Take into account leg from leg opening part by easness, prevent from the leakage in leg week and for the viewpoint of the uneasy sense of leakage not It reaches.

Therefore, the subject of the invention is to provide a kind of pants type absorptive articles, can solve above-mentioned prior art tool The shortcomings that having.

Hereinafter, being described with reference to the accompanying drawings based on its specific embodiment to the pants type absorptive article of the present invention.

The Breeches type disposable diaper 1 (hereinafter also referred to " diaper 1 ") of one embodiment of the present invention, such as Fig. 1 and Fig. 2 institutes Show, including：The veutro chip part 2A of the veutro of wearer is configured at when wearing；It is configured at the back of the body side band part of the back side of wearer Part 2B；With the absorbent main body 3 for the lengthwise for setting up and being fixed on veutro chip part 2A and dorsal sheet member 2B, veutro chip part 2A It is engaged with dorsal sheet member 2B, a pair of of side seal of formation portion 4,4, waist opening portion 5 and a pair of of leg opening part 6,6.

Diaper 1 is as depicted in figs. 1 and 2, has the veutro portion A for the veutro for being configured at wearer when wearing, is configured at and wears The drosal part B of the back side for the person of wearing, between veutro portion A and drosal part B and be configured at wearer crotch part crotch C.

In addition, the side seal portion of diaper 1 is by by the two of both sides edge 2a, 2a of veutro chip part 2A and dorsal sheet member 2B Joint method well known to side edge part 2b, 2b heat sealing etc. is engaged and is formed.

Diaper 1 has article longitudinal direction X and article transverse direction Y.Article longitudinal direction X is in the pants type absorptive article of diaper etc. Direction corresponding with the front-rear direction of wearer, article transverse direction Y be in the pants type absorptive articles such as diaper with corresponding to wearing The orthogonal direction in the direction in the front-back direction of the person of wearing.It is from veutro portion A in article longitudinal direction X such as Fig. 2 shown in X in diaper 1 It through crotch C to the direction of drosal part B, is used in article transverse direction Y such as Fig. 2 shown in Y, is vertical with article in the state of expansion and elongation The direction orthogonal to X.

In the present specification, skin opposite face is absorbent commodity or its component parts, when absorbent commodity is worn Towards the face of the skin side of wearer, non-skin opposite face is absorbent commodity or its component parts, is worn in absorbent commodity Towards the face of the opposite side of skin side (side of wearing the clothes) when.

It about diaper 1, is described in more detail, the party of the length La and side seal portion 4 of the article longitudinal direction X of veutro chip part 2A To length LS it is identical, veutro chip part 2A is in main part 20a of the left and right sides with side seal portion 4,4, on the other hand, no With the extension extended from main part 20a to the sides crotch C.On the other hand, the length Lb of the article longitudinal direction X of dorsal sheet member 2B Than the length LS long of the direction in side seal portion 4, being thus formed in the left and right sides has a main part 20b in side seal portion 4,4, and from master Body portion 20b extends to the sides crotch C, does not have the extension 21b in side seal portion 4,4 in the left and right sides.Hereinafter, by veutro chip part 2A Main part 20a be also referred to as veutro main part 20a, the main part 20b of dorsal sheet member 2B and extension 21b are also referred to as back side Main part 20b and back side extension 21b.

The plan view shape of the veutro chip part 2A and dorsal sheet member 2B of diaper 1 are rectangular shapes shown in Fig. 2, more It is the length of the article transverse direction Y oblong-shaped longer than the length of article longitudinal direction X for body.

As shown in figure 4, the veutro chip part 2A and dorsal sheet member 2B of diaper 1 include：As the outer surface of diaper Outer-skin sheet 22；It is configured at inner layer piece 23 of the skin with respect to surface side of outer-skin sheet 22；And in article longitudinal direction X between two pieces 22,23 More linear elastomeric elements 24 of upper interval configuration, as shown in Fig. 2, veutro chip part 2A have waist pars contractilis G1 and Waist portion pars contractilis G2, dorsal sheet member 2B have waist pars contractilis G1, waist portion pars contractilis G2, extension pars contractilis G3.

Waist pars contractilis G1, waist portion pars contractilis G2, extension pars contractilis G3 by between 2 pieces 22,23 with elongate The contraction of the elastomeric element 24 of state configuration, and embody elastic extension.

Waist pars contractilis G1 veutro chip part 2A and dorsal sheet member 2B respectively in, the ratio absorbability of X in article longitudinal direction The position of the end of the length direction of main body 3 in the outer part is formed.Waist portion pars contractilis G2 is in veutro chip part 2A and back of the body side band part Part 2B respectively in, in article longitudinal direction, the ratio waist pars contractilis G1 of X is formed by the positions of the sides crotch C.Extension pars contractilis G3 is formed In back side extension 21b.It is preferred that waist pars contractilis G1, waist portion pars contractilis G2, extension pars contractilis G3 are respectively in article transverse direction Y At least embody retractility than the both side edges of absorber 33 part in the outer part respectively.

In addition, formed the elastomeric element 24 of waist portion pars contractilis G2 and/or extension pars contractilis G3 with absorber 33 The part of width direction central portion overlapping loses elasticity or cut-out elastomeric element of elastomeric element etc. due to heat treatment etc., by Preferably elastomeric element 24 does not assign retractility to veutro chip part 2A and dorsal sheet member 2B in the portion for this.

It can also be in veutro chip part 2A and the back of the body between 2 pieces 22,23 of composition veutro chip part 2A and dorsal sheet member 2B The respective substantial whole regions of lateral plate component 2B are fixed with bonding agent, can also be such as Japanese Unexamined Patent Publication 2005-80859 bulletins Described in elastic flexible component 2 sheet materials between like that, be formed as scatterplot shape multiple joint portions engage so that elastic portion Part 24 does not pass through.

In the veutro chip part 2A and dorsal sheet member 2B of diaper 1, outer-skin sheet 22 is in the opening week for forming waist opening portion 5 51 inside synusia of waist end, 23 side of acies is turned back, which covers the end of the length direction of absorbent main body 3 Skin with respect to surface side, the sheet material 35 of the part Chong Die with absorbent main body 3 and positive dough sheet 31 and the first leakage-proof turnup formation Skin opposite face engagement.

As shown in figure 3, the absorbent main body 3 of diaper 1 has：Form the positive dough sheet of the liquid permeability in liquid absorption face 30 31；The back sheet 32 of liquid difficulty permeability；And the absorber 33 of the liquid retainability configured between two pieces 31,32, such as Fig. 2 It is shown, there is the longer shape on the X of article longitudinal direction.Absorber 33 includes：The aggregate of the fibers such as paper pulp fiber (can also be Non-woven fabrics) or wherein keep water absorbent polymer particle obtained by absorbent core 330；Coat the packet of the absorbent core 330 Chip 331.Absorber 33 is respectively provided with that there is no absorbabilities in the both sides across the length direction Central Line of absorbent core 330 The non-long-pending fibre portion 33c in the grammes per square metre of the forming material of core or the forming material side fewer than other parts.In addition, in absorbent core There is the central portion of 330 width direction the grammes per square metre there is no the forming material of absorbent core or the forming material to compare other parts The non-long-pending fibre portion 33d in few center.Absorber 33 has the longer shape on the X of article longitudinal direction.

Absorbent main body 3 is respectively provided in the both sides of its length direction：Free end 34a is located at the lateral margin than absorber 33 First leakage-proof turnup 34 of the positions of 33s in the inner part；Than absorber 33 lateral margin 33s more to the width direction of absorbent main body 3 Outside extend the second leakage-proof turnup 37.The length direction of absorbent main body 3 is identical as article length direction, absorbent main body 3 width direction is identical as item width direction, therefore, the length direction of absorbent main body 3 is also known as length direction below X, the width direction of absorbent main body 3 is known as width direction Y.The free end 34a of first leakage-proof turnup 34 is at least shown in Fig. 2 Expansion and elongation state under be located at positions in the inner part lateral margin 33s than absorber 33.In addition, the second leakage-proof turnup 37 It is also that lateral margin 33s under expansion shown in Fig. 2 and elongation state than absorber 33 extends outward.

There is first leakage-proof turnup 34 sheet material 35 of liquid-repellency or water-repellancy to be turned over the first leakproof for being fixed on the sheet material 35 The elastomeric element 36 of side formation.In the diaper 1 of present embodiment, the sheet material 35 for forming the first leakage-proof turnup 34 is that have 1 A piece is in the laminates for the part that the free end 34a of the first leakage-proof turnup 34 is constructed by 2 foldings as 2 layers, the first leakage-proof turnup The elastomeric element 36 of formation is fixed on 2 layers of construction part near the free end 34a of the first leakage-proof turnup 34 via bonding agent Interlayer.The interlayer of 2 layers of construction part can be engaged with bonding agent etc. is region-wide, and the bonding agent etc. that can also be applied with pattern is appointed The method part of meaning engages.

As shown in figure 3, the positive dough sheet 31 of diaper 1 has in the outside of the both side edges 33s of absorber 33 from absorber 33 Skin is with respect to the return portion 31c that surface side is turned back to non-skin with respect to surface side.In more detail, positive dough sheet 31 is and absorbent main body The piece of longer rectangular shape on the 3 identical direction of length direction is located in the centers width direction Y of absorbent main body 3 Centre region is located at the skin of absorber 33 with respect to surface side, and the end regions across the both sides of the middle section are to the non-of absorber 33 Under skin is rolled up with respect to surface side.

In addition, as shown in figure 3, the first leakage-proof turnup 34 also has in the outside of the both side edges 33s of absorber 33 from absorption The skin of body 33 is with respect to the return portion 34c that surface side is turned back to non-skin with respect to surface side.In more detail, according to will with cover absorb The positive dough sheet 31 that the mode of the side of body 33 is turned back further is turned back from the mode of the outer side covering of the positive dough sheet 31.

The return portion 34c of the return portion 31c of positive dough sheet 31 and the first leakage-proof turnup 34 can be bent to as shown in Figure 3 Section arc-shaped and the part formed.

Formed the sheet material 35 of the first leakage-proof turnup 34 absorber 33 non-skin with respect to surface side slave absorber 33 two Lateral margin 33s rises in the position of the inside interval of the width direction Y of absorbent main body 3, has under volume to absorber 33 Positive dough sheet 31 fixed upside fixed part 35u of the non-skin with respect to surface side.In addition, the sheet material 35 for forming the first leakage-proof turnup 34 exists The non-skin of absorber 33 with respect to surface side from the both side edges 33s of absorber 33 in the width direction Y of absorbent main body 3 The position of side interval has the downside fixed part 35d for being fixed on back sheet 32.The width direction of its downside fixed part 35d Outside end become the first leakage-proof turnup 34 base end part 34b.In diaper 1, back sheet 32 is " downside of the invention Piece ".Hypopleurite is to be located at than forming the first leakage-proof turnup 34 on the thickness direction of the pants type absorptive articles such as diaper 1 The non-skin positioned at absorber 33 of sheet material 35 more depends on outer surface side (Fig. 3 of pants type absorptive article with respect to the part of surface side In downside) piece.

In the diaper 1 of present embodiment, back sheet 32 has bowing using the length direction of absorbent main body 3 as long side Depending on rectangular shape, as shown in figure 3, its both sides than the first above-mentioned leakage-proof turnup 34 return portion 34c more to width direction Y's Outside extends.In addition, back sheet 32 more prolongs on the length direction X of absorbent main body 3 than both ends 33a, 33b of absorber 33 Stretching is gone.

As shown in figure 3, the part Chong Die with veutro chip part 2A of absorbent main body 3 is arbitrarily engaged by bonding agent etc. Mode is bonded on veutro chip part 2A, and the end of the second leakage-proof turnup 37 also engages on veutro chip part 2A.With back side piece The part of component 2B overlappings is also the same, is bonded on dorsal sheet member 2B by the arbitrary juncture such as bonding agent, the second leakproof The end of flange 37 also engages on dorsal sheet member 2B.In addition, the end of the length direction in absorbent main body 3, first is anti- Leakage flange 34 is bonded on the skin opposite face positioned at absorber 33 with the state fallen to volt on the inside of the width direction of absorbent main body In the positive dough sheet 31 of side.As the fixing means of absorbent main body 3, the bonding agents such as the bonding agent of heat molten type can be used, also may be used To replace bonding agent, or with bonding agent it is used together other arbitrary joint methods such as heat sealing, ultrasonic sealing function.

In addition, in diaper 1 shown in Fig. 3, the sheet material 35 of the first leakage-proof turnup 34 is formed via bonding agent 9 and positive dough sheet 31 and back sheet 32 engage, as a result, formed upside fixed part 35u and downside fixed part 35d.As the fixing means of sheet material 35, Bonding agent can also be replaced, or other arbitrary joint methods such as heat sealing, ultrasonic sealing function are used together with bonding agent.

There is second leakage-proof turnup 37 sheet material 38 of liquid-repellency or water-repellancy to be turned over the second leakproof for being fixed on the sheet material 38 The elastomeric element 39 of side formation.In the diaper 1 of present embodiment, the sheet material 38 for forming the second leakage-proof turnup 37 is that have 1 A piece is in the laminates for the part that the free end 37a of the second leakage-proof turnup 37 is constructed by 2 foldings as 2 layers, the second leakage-proof turnup The elastomeric element 39 of formation is fixed on 2 layers of construction part near the free end 37a of the second leakage-proof turnup 37 via bonding agent Interlayer.The interlayer of 2 layers of construction part can engage whole region with bonding agent etc., the bonding agent etc. that can also be applied with pattern Arbitrary method part engages.

Second leakage-proof turnup 37 of diaper 1 is as shown in figure 3, forming the sheet material 38 of the second leakage-proof turnup 37 of a side and being formed The sheet material 38 of the second leakage-proof turnup 37 of another party has a continuous piece.Specifically, by the both sides of the piece of rectangular shape Portion turns back to its skin with respect to surface side, forms 2 layers of construction part of the second leakage-proof turnup 37 of pair of right and left.

As shown in Figures 2 and 3, the sheet material 38,38 for forming the second leakage-proof turnup 37 is the piece with the first leakage-proof turnup of composition The different sheet material of material, surface side opposite with the non-skin of back sheet 32 of crotch C of diaper 1 are engaged via bonding agent 9.Form second It the sheet material 38 of leakage-proof turnup 37 and can be engaged, can also be applied with pattern with whole region as between the back sheet 32 of hypopleurite The arbitrary methods such as bonding agent be partially engageable with.Engagement as the sheet material 38 and back sheet 32 for forming the second leakage-proof turnup 37 Method can also replace bonding agent, or be used together other arbitrary sides of engagement such as heat sealing, ultrasonic sealing function with bonding agent Method.In addition, formed the second leakage-proof turnup 37 sheet material 38 can also be to be formed the second leakage-proof turnup 37 of a side sheet material be with The different sheet material of the sheet material of the second leakage-proof turnup 37 of another party is formed, can also may be used with interval between the different sheet material To be overlapped a part.

As shown in figure 3, the diaper 1 of present embodiment is enabling the return portion 34c to free end 34a from the first leakage-proof turnup 34 Length be L1, enable the second leakage-proof turnup 37 the leakage-proof turnups 37 of return portion 34c to second from the first leakage-proof turnup 34 from It is L2 by the length held, the distance between the return portion 34c and downside fixed part 35d that enable the first leakage-proof turnup 34 is L3, enables just The distance between return portion 31c and upside fixed part 35u of dough sheet 31 be L4 when, meet all relational expressions (1) below~ (4)。

(1)L1≤L2

(2)L2≤L1+L3

(3)L3≤L4

(4)L4≤L1+L3

Judge whether to meet under the expansion shown in Fig. 2 of these relational expressions and elongation state.For example, the first leakage-proof turnup 34 The position of return portion 34c state in positive dough sheet 31 is poured on volt and is determined positioned at the as used in Fig. 3 shown in reference numeral 34 ' Part of the skin of the absorber of one leakage-proof turnup 34 with respect to surface side.In addition, above-mentioned L1~L4 and aftermentioned distance L5, overall with L It is the length or distance measured along article transverse direction Y, is measured in the vertical view of expansion and the diaper of elongation state between 2 points Length or distance.As long as in addition, these relational expressions at least the free end 37a of expansion and the second leakage-proof turnup of elongation state that Distance L (Fig. 3 references) around here is that minimum position meets.In addition, the diaper 1 of present embodiment is about absorbent main body 3 length direction Central Line CL is formed as symmetrical, therefore, mainly marks the symbols such as L1~L4 to left side and illustrates, but Being right side also has same structure.

By meeting above-mentioned relation formula (1), the first leakage-proof turnup 34 can be reliably covered with the second leakage-proof turnup, in addition to It can prevent except the leakage from crotch part, additionally it is possible to prevent because from crotch part it can be seen that caused by the first leakage-proof turnup 34 The apparent uneasiness to leakage is felt.Moreover, by making L1≤L2, can eliminate when leg passes through leg opening part, leg quilt The unfavorable condition that first leakage-proof turnup 34 tangles.

Moreover, under positive dough sheet 31 is rolled up to the non-skin of absorber 33 with respect to surface side, in the non-skin opposite face of absorber 33 The position of interval from the lateral margin of absorber 33 of side has the sheet material 35 and positive dough sheet 31 for forming the first leakage-proof turnup 34 Fixed upside fixed part 35u, therefore, side S warpage, easy direction dresses near the fixed part 35u of upside of absorber 33 The skin of person erects, and by meeting above-mentioned relation formula (2), in dress, be particularly due to liquid absorption and crotch C to When lower section is hung down, the first leakage-proof turnup 34 includes partly substantially erecting from its base end part 34b to return portion 34c.By full (2) two side of sufficient above-mentioned relation formula (1) and above-mentioned relation formula, not with the above-mentioned longer situations of length L1 of the first leakage-proof turnup 34 Together, can prevent that the width of the first leakage-proof turnup 34 to each other from narrowing and the case where the width in liquid absorption face 30 narrows, and It can substantially ensure the first leakage-proof turnup height of itself.Therefore, in dress, in the absorption due to liquid, crotch C is downward Whens side hangs down equal, the state of the first leakage-proof turnup 34 and the skin contact of wearer can be steadily maintained, can be prevented and leg Week generates gap and leaks.In addition, can also prevent due to generating gap and to Protector or care-giver, bring in person Uneasiness sense to leakage.

In addition, by meeting above-mentioned relation formula (3), the fitness of the first leakage-proof turnup 34 also improves.That is, passing through absorber End erects, and it includes from its base end part 34b to return portion 34c when partly substantially erecting that can improve the first leakage-proof turnup 34 Erecting, therefore, it is possible to further increase the state for steadily maintaining the first leakage-proof turnup 34 and the skin contact of wearer Effect.In turn, by meeting above-mentioned relation formula (4), absorber can be covered with the first leakage-proof turnup 34.Therefore, it is possible to anti- Only from the front end of the first leakage-proof turnup, the dirt of the leg of wearer is stretched out and caused in the front end for being attached with the absorber of excreta With the dirt of coat.

In addition, in the diaper 1 of present embodiment, the elastomeric element 33e of side standing is fixed on the side of absorber 33 Between edge 33s and the positive dough sheet 31 for coating side edge part 33s, the side S of absorber 33 is easy to erect.Elastomeric element 33e can To be engaged with clad sheet 331, it can be fixed on 31 side of positive dough sheet, can also be engaged with the two.In addition, in the first leakage-proof turnup 34 Free end 34a and base end part 34b between central portion be configured with middle spring component 40.Since there are middle spring components 40, when the first leakage-proof turnup 34 erects, middle section is easy to keep stable standing state, can prevent middle section When unexpected bending, bending outward from the second leakage-proof turnup 34 overflow, inwardly bending when block wearer urination Portion causes to leak out.

As shown in Fig. 2, the diaper 1 of present embodiment is under expansion and elongation state, the second leakage-proof turnup 37 of a side The elastomeric element 39d of the second leakage-proof turnup 37 of elastomeric element 39c and another party is mutually parallel configuration, and respectively in absorbability master Extend configuration on the length direction of body 3.Existing diaper with the structure due to liquid absorption and crotch C be easy to comparing Position on the lower is hung down, still, by using the present invention structure, as described above, can be effectively prevented leakage and for The uneasy sense of leakage.

In addition, in the diaper 1 of present embodiment, the second leakage-proof turnup 37,37 of pair of right and left itself is also mutually parallel Ground is formed, and is extended to form on the length direction X of absorbent main body respectively.In addition, the first leakage-proof turnup 34 of pair of right and left, 34 also form and are extended to form on the length direction X of absorbent main body respectively in parallel to each other.

From the viewpoint of the effect that can more reliably realize above-mentioned 1 or 2 or more, preferably further meet pass below System.

For above-mentioned relation formula (1), above-mentioned L2 (is turned over relative to the ratio of above-mentioned L1 from the first leakproof of the second leakage-proof turnup 37 The length L2/ of the free end of the leakage-proof turnups 37 of return portion 34c to second on side 34 from the return portion 34c of the first leakage-proof turnup 34 to The length L1 of free end 34a) it is preferably 1.0 or more 6.0 hereinafter, more preferably 1.2 or more 4.0 or less.

In addition, for above-mentioned relation formula (2), the combined length of above-mentioned L1 and above-mentioned L3 relative to above-mentioned L2 ratio ((from The return portion 34c of the first leakage-proof turnups of length L1+ 34 of the return portion 34c to free end 34a of one leakage-proof turnup 34 is solid with downside Determine the distance between portion 35d L3)/length from the free end of the leakage-proof turnups 37 of return portion 34c to second of the first leakage-proof turnup 34 Spend L2) it is preferably 1.0 or more 7.0 hereinafter, more preferably 1.2 or more 4.0 or less.

In addition, for above-mentioned relation formula (3), above-mentioned L4 relative to above-mentioned L3 ratio (the return portion 31c of positive dough sheet 31 with it is upper The distance between the return portion 34c and downside fixed part 35d of the first leakage-proof turnups of the distance between side fixed part 35u L4/ 34 L3) Preferably 1.0 or more 6.0 hereinafter, more preferably 1.2 or more 4.0 or less.

In addition, about above-mentioned relation formula (4), the aggregate value of above-mentioned L1 and above-mentioned L3 relative to above-mentioned L4 ratio ((from first The return portion 34c of the first leakage-proof turnups of length L1+ 34 of the return portion 34c to free end 34a of leakage-proof turnup 34 is fixed with downside The distance between portion 35d L3)/positive dough sheet 31 the distance between return portion 31c and upside fixed part 35u L4) be preferably 1.0 with Upper 7.0 hereinafter, more preferably 1.2 or more 4.0 or less.

In addition, the length slave return portion to free end of the first leakage-proof turnup, that is, above-mentioned L1, the second leakage-proof turnup from The return portion of one leakage-proof turnup to length, that is, above-mentioned L2 of the free end of the second leakage-proof turnup, the first leakage-proof turnup return portion with The distance between downside fixed part is on the distance between return portion and upside fixed part of above-mentioned distance L3 and positive dough sheet are Distance L4 is stated, the distance L of the free end 37a relative to the second leakage-proof turnup to each other are (hereinafter also referred to as absorbent main body 3 Overall with L) ratio from the same viewpoint preferably following range.

Above-mentioned L1 is preferably 5% or more relative to the ratio of overall with L, more preferably 8% or more, also preferably 40% with Under, more preferably 35% hereinafter, and preferably 5% or more 40% hereinafter, more preferably 8% or more 35% or less.On in addition, It is preferably 10mm or more to state L1, more preferably 15mm or more, also preferably 100mm hereinafter, more preferably 60mm hereinafter, and excellent 10mm or more 100mm are selected as hereinafter, more preferably 15mm or more 60mm or less.

Above-mentioned L2 is preferably 5% or more relative to the ratio of overall with L, more preferably 8% or more, also preferably 40% with Under, more preferably 35% hereinafter, and preferably 5% or more 40% hereinafter, more preferably 8% or more 35% or less.On in addition, It is preferably 10mm or more to state L2, more preferably 15mm or more, also preferably 100mm hereinafter, more preferably 70mm hereinafter, in addition it is excellent 10mm or more 100mm are selected as hereinafter, more preferably 15mm or more 70mm or less.

Above-mentioned L3 is preferably 3% or more relative to the ratio of overall with L, more preferably 5% or more, also preferably 40% with Under, more preferably 35% hereinafter, and preferably 3% or more 40% hereinafter, more preferably 5% or more 35% or less.On in addition, It is preferably 10mm or more to state L3, more preferably 15mm or more, also preferably 80mm hereinafter, more preferably 60mm hereinafter, and excellent 10mm or more 80mm are selected as hereinafter, more preferably 15mm or more 60mm or less.The combined length (L1+L3) of above-mentioned L1 and L3 for The ratio of overall with L is preferably 10% or more, more preferably 20% or more, also preferably 80% hereinafter, more preferably 60% hereinafter, And preferably 3% or more 80% hereinafter, more preferably 5% or more 60% or less.

Above-mentioned L4 is preferably 3% or more relative to the ratio of overall with L, more preferably 5% or more, also preferably 40% with Under, more preferably 35% hereinafter, and preferably 3% or more 40% hereinafter, more preferably 5% or more 35% or less.On in addition, It is preferably 10mm or more to state L4, more preferably 15mm or more, also preferably 80mm hereinafter, more preferably 60mm hereinafter, and excellent 10mm or more 80mm are selected as hereinafter, more preferably 15mm or more 60mm or less.

In addition, in diaper 1, as shown in Fig. 2, forming 3 length of absorbent main body of the sheet material 38 of the second leakage-proof turnup 37 The length L7 of direction X is shorter than the length L6 of the direction of absorber 33.More specifically, preferably comprising the second leakage-proof turnup 37 Sheet material 38 and absorber 33 are that end 38a, 33a of the sides veutro chip part 2A are located on veutro chip part 2A, in more detail It is on the main part 20a of veutro chip part 2A, the end 38a of the sheet material 38 depends on crotch C in the end 33a than absorber 33 The position of side becomes terminal.

Additionally, it is preferred that the sheet material 38 and absorber 33 of the second leakage-proof turnup 37 of composition are the ends of the sides dorsal sheet member 2B 38b, 33b are located on dorsal sheet member 2B, are the sheet material 38 on the main part 20b of dorsal sheet member 2B in more detail End 38b than absorber 33 end 33b by the sides crotch C position become terminal.

By keeping the length L7 of sheet material 38 shorter than the length L6 of absorber 33, the waist portion D of the tubular of diaper 1 can be improved Aeration.The waist portion D of tubular is annularly linked by veutro chip part 2A and a pair of of side seals of dorsal sheet member 2B portion 4 And the part of the tubular formed.

In the diaper 1 of present embodiment, as shown in Fig. 2, the elastomeric element 36 of the first leakage-proof turnup 34 is along absorbability The length of the length direction X of main body 3 is longer than the elastomeric element 39 of the second leakage-proof turnup 37.Thus improve the first leakage-proof turnup 34 to The stickiness of the skin of wearer.

The length of elastomeric element said here is conducive to the first leakage-proof turnup 34, the second leakproof in elastomeric element Flange 37 assigns the length of the part of retractility, for example, in the first leakage-proof turnup 34 or the length direction X of the second leakage-proof turnup 37 End have relieve elongation state part when, which is not included in the length of elastomeric element.

In the diaper 1 of present embodiment, in the elastomeric element 39 of 37 formation of the second leakage-proof turnup, one end and abdomen The main part 20a overlappings of lateral plate 2A, the other end are Chong Die with the main part 20b of back side piece 2B.In other words, the second leakage-proof turnup 37 Elastomeric element 39 the end of the sides veutro chip part 2A and the end of the sides back side piece 2B be respectively positioned on than side seal portion 4 lower end lean on waist The position of 51 side of portion end.Thus stickiness of second leakage-proof turnup 37 to the skin of wearer is improved.

First leakage-proof turnup, 34 preferred free end 34a is nearby contacted with the root of the huckle of wearer, and the second leakproof is turned over 37 preferred free end 37a of side is contacted with around the huckle of the root interval of huckle.

In addition, as shown in figure 3, the upside fixed part 35u ratios that the first leakage-proof turnup 34 is fixed on positive dough sheet 31 are fixed on the back of the body The downside fixed part 35d of dough sheet 32 (hypopleurite) is more located at the inside of the width direction Y of absorbent main body 3, is located at absorbability The length direction Central Line sides CL of main body 3.To the standing of absorber, there is no limit can be such that the first required leakproof turns over as a result, The erecting on side is maximum.

It is preferred that upside the distance between fixed part 35u and downside fixed part 35d L5 is no more than the return portion 31c of positive dough sheet 31 The distance between upside fixed part 35u is above-mentioned L4.

The distance between upside fixed part 35u and downside fixed part 35d L5 relative to positive dough sheet 31 return portion 31c with it is upper The distance between side fixed part 35u is that the ratio (L5/L4) of above-mentioned L4 is preferably 3% or more, more preferably 5% or more, it is also excellent Be selected as 97% hereinafter, more preferably 95% hereinafter, and preferably 3% or more 97% hereinafter, more preferably 5% or more 95% with Under.In addition, above-mentioned distance L5 is preferably 5mm or more, more preferably 8mm or more, also preferably 80mm are hereinafter, more preferably 60mm Hereinafter, and preferably 10mm or more 80mm hereinafter, more preferably 15mm or more 60mm or less.

In the diaper 1 of present embodiment, as shown in figure 3, the second leakage-proof turnup 37,37 of pair of right and left be respectively provided with it is more Root elastomeric element 39a, 39b are configured at the end 32c of the non-skin of absorber 33 with respect to the width direction of the back sheet 32 of surface side Positioned at the outermost elastomeric element 39a for being configured at the second leakage-proof turnup 37 and it is configured between innermost elastomeric element 39b 39e.By the way that with this structure, diaper 1 is better in the aspect of performance for preventing from just oozing out.That is, innermost elastomer 39b with The huckle of wearer is bonded, and therefore, the whole region of the part of the covering absorber of the second leakage-proof turnup is covered by back sheet, It is reliably prevented from and is just oozed out from the second leakage-proof turnup piece, additionally, there are in more inner than being configured at outermost elastomer 39a The position of side, as a result, the hardness with penetrating property of patch of the elastomer in foot week further increase, mitigate sense of discomfort and being capable of anti-leak-stopping Go out.

Also include back sheet in addition, in the mode of the part 39e between elastomeric element 39a and elastomeric element 39b 32 end 32c is located at the situation on elastomeric element 39a or elastomeric element 39b.

In addition, as described above, the absorbent core 330 of the absorber 33 of the diaper 1 of present embodiment is across absorbability master The both sides of the length direction Central Line CL of body are respectively provided with non-long-pending fibre portion 33c, the 33c in side, form the piece of the first leakage-proof turnup 34 The position of the outboard end of the upside fixed part 35u of the material 35 i.e. position and side of the base end part 34b of the first leakage-proof turnup 34 is non- Product fibre portion 33c overlapping, or lean on positioned at long-pending fibre portion 33c more non-than the side position, that is, absorbent main body 3 of the inside of width direction The length direction Central Line sides CL.

The side S of absorber 33 is easier to erect as a result, and effect of the invention further increases.

The forming material of diaper 1 is illustrated.

As the positive dough sheet 31 of absorbent main body 3, back sheet 32, absorber 33 is constituted, can use respectively currently used for The material etc. of the absorbent commodities such as disposable diaper, sanitary napkin, is not particularly limited.For example, as 31 energy of positive dough sheet The non-woven fabrics etc. for enough using hydrophily and liquid permeability can use liquid impermeability or water-repellancy as back sheet 32 The laminated body etc. of resin film, resin film and non-woven fabrics etc..Back sheet 32 can also have water vapo(u)r transmission.

As absorber 33, can use the aggregate (can also be non-woven fabrics) of the fibers such as paper pulp fiber or wherein Keep absorbent core obtained by the particle of water absorbent polymer use include the thin paper of water penetration, non-woven fabrics the knot that coats of clad sheet Structure etc..

As the sheet material 35,38 for forming the first leakage-proof turnup or the second leakage-proof turnup, the mesh in this article can be used The preceding various sheet materials used, are not particularly limited, however, it is preferred to non-woven fabrics, in addition, can also use resin film and non-woven fabrics Laminated body, with spunbond layer (S) and meltblown layer (M) stacking non-woven fabrics (SM, SMS, SMMS etc.) etc..

As outer-skin sheet 22 and inner layer piece 23, the various sheet materials used at present in this article can be used, without spy Other limitation, however, it is preferred to which non-woven fabrics, especially considers from viewpoints such as flexibilities, preferably include hot-wind nonwoven cloth, hot-rolling nonwoven The stacking non-woven fabrics of the non-woven fabrics of the single layer of cloth, spunlace non-woven cloth, spun-bonded non-woven fabrics, melt spraying non-woven fabrics etc. or 2 layers or more.Separately Outside, these non-woven fabrics and film can also be made integrated.

As elastomeric element 24,36,33e, 39,40, can use for suctions such as disposable diaper and sanitary napkins The various well known elastomeric elements of the property received article.As the elastic material of elastomeric element, can enumerate for example：Styrene-fourth two The synthetic rubber such as alkene, butadiene, isoprene, neoprene, natural rubber, EVA, expandable polyolefin hydrocarbon, polyurethane etc..As The form of elastomeric element, can it is preferable to use the threadiness such as rectangular cross-section, square, circle, polygon (line rubber etc.) or The structure of band-like (flat rubber etc.) or the linear structure etc. of multifilament artificial silk type.

The back sheet 32 of above-mentioned diaper 1 is as shown in Figures 2 and 3, and the both sides of length direction are configured at that form second anti- The skin abutment face side for leaking 2 layers of construction part of the sheet material 38 of flange 37, still, in the diaper of second embodiment of the present invention In (not shown), the both sides of the article length direction X of back sheet 32 are located at 2 layers of structure of the sheet material for forming the second leakage-proof turnup 37 Make the interlayer of part, side and sheet material 38 structure to cover the side in a manner of turned back of second leakage-proof turnup 37 by back sheet 32 At.In this second embodiment, the side of back sheet 32 can not reach (the ginseng of elastomeric element 39 of the second leakage-proof turnup formation According to Fig. 3) position, the position of the elastomeric element 39 of the second leakage-proof turnup formation can also be reached, can be in the non-of the side Flesh abut surface side or non-flesh abut surface side exist the elastomeric element 39 all or part of, be configured at second it is preferred that being located at The outermost elastomeric element 39a of the leakage-proof turnup 37 and position 37a being configured between innermost elastomeric element 39b.Pass through With this structure, diaper 1 prevents the performance just oozed out better.In addition, the flesh bearing surface of the side of covering back sheet 32 The end of the article transverse direction Y center sides of the sheet material 38 of side can reach the position of the downside fixed part 35d of the first leakage-proof turnup 34, It can not also reach.In the case where not reaching, the sheet material 35 for forming the first leakage-proof turnup preferably with is not covered by sheet material 38 Part back sheet 32 engagement and formed downside fixed part 35d be preferably formed as the first leakage-proof turnup in case of arrival Sheet material 35 engages with sheet material 38 and forms downside fixed part 35d.

The diaper of second embodiment due to also meeting above-mentioned relational expression (1)~(4), so as to reach with it is above-mentioned 1 same function and effect of diaper.

In addition, according to the diaper of second embodiment, can prevent the second leakage-proof turnup be bonded in the leg week of wearer When back sheet 32 be in direct contact with skin, improve leg week skin sense of touch.In addition, since back sheet 32 is wrapped by and can be prevented Damage to the back sheet 32 in using.From this point of view, the sheet material turned back in a manner of covering the side of back sheet 32 38 are preferably made of non-woven fabrics, additionally, it is preferred that being engaged with the sheet material 35 for forming the first leakage-proof turnup and forming downside fixed part 35d.It, can be with the urine of above-mentioned embodiment for the point that second embodiment is not particularly illustrated, including preferred structure Cloth 1 is same.

More than, to the present invention is based on its preferred embodiments to be illustrated, still, the present invention is not limited only to above-mentioned Embodiment can carry out change appropriate.

For example, veutro chip part 2A same as dorsal sheet member 2B can also have from the lower end in side seal portion 4 to the sides crotch C The extension of extension, in addition, dorsal sheet member 2B can not also have extension as veutro chip part 2A.

In addition, the elastomeric element 33e and middle spring component 40 of side standing can not also configure either one or both.

In addition, illustrating in figure 2 and figure 3, also there is the non-long-pending fibre portion 33d in center other than the non-long-pending fibre portion 33c in side Absorbent core 330, still, absorber 33 of the invention can also include only have the non-product fibre portion 33c in side without center The absorbent core 330 of non-product fibre portion 33d.In addition, the non-long-pending fibre portion 33c in the side of absorbent core 330 can also be with side shown in fig. 5 Formula is formed.

In addition, the clad sheet of cladding absorbent core can coat the entirety of absorbent core 330 with a piece, can also combine The entirety of 2 or more piece cladding absorbent cores 330.For example, piece and cladding of the skin of cladding absorbent core 330 with respect to surface side Non- skin can also be different piece with respect to the piece of surface side.

Side seal portion 4 can also have in the outside in side seal portion does not engage the narrow of veutro chip part 2A and dorsal sheet member 2B The non-engaging portion of (such as more than 0mm and 20mm or less).

In addition, pants type absorptive article can also be short other than the Breeches type disposable diaper of child or adult The sanitary napkin etc. of pants type.

About above-mentioned embodiment, invention additionally discloses absorbent commodities below.

1 ＞ of ＜

A kind of pants type absorptive article comprising：It is configured at the veutro chip part of the veutro of wearer；It is configured at dress The dorsal sheet member of the back side of person；With the absorbent main body for setting up and being fixed on veutro chip part and the lengthwise of dorsal sheet member, Veutro chip part and dorsal sheet member engagement are formed with a pair of of side seal portion, waist opening portion and a pair of of leg opening part, the shorts In type absorbent commodity,

Above-mentioned absorbent main body has the absorber of the positive dough sheet and liquid retainability that form liquid absorption face, in length side To both sides be respectively provided with：First leakage-proof turnup of position of the free end positioned at the lateral margin than the absorber in the inner part；Than this The second leakage-proof turnup that the lateral margin of absorber extends more outward,

Positive dough sheet and the first leakage-proof turnup have the skin opposite face from the absorber in the outside of the both side edges of absorber The return portion that side is turned back to non-skin with respect to surface side forms the sheet material of the first leakage-proof turnup in the non-skin opposite face from absorber The position of both sides genesis interval on the inside of width direction of the absorber of side has the upside fixed part for being fixed on positive dough sheet With the downside fixed part for being fixed on hypopleurite,

To enable length from the return portion of the first leakage-proof turnup to free end be L1, enable in the second leakage-proof turnup from first The return portion of leakage-proof turnup to the free end of the second leakage-proof turnup length be L2, enable the first leakage-proof turnup return portion and downside When the distance between return portion and the upside fixed part that the distance between fixed part is L3, enables positive dough sheet are L4, meet below Whole relational expression (1)~(4).

(1)L1≤L2

(2)L2≤L1+L3

(3)L3≤L4

(4)L4≤L1+L3。

2 ＞ of ＜

Pants type absorptive article described in 1 ＞ of above-mentioned ＜, wherein the elastic portion of the second leakage-proof turnup of a side The elastomeric element of part and the second leakage-proof turnup of another party configures and in parallel with each other respectively in the length direction of absorbent main body Upper extension configuration.

3 ＞ of ＜

Pants type absorptive article described in 2 ＞ of above-mentioned ＜ 1 ＞ or ＜, wherein in the non-skin phase of absorber Opposite side is configured with the back sheet of liquid difficulty permeability, and the sheet material for forming the second leakage-proof turnup is and constitutes the first leakage-proof turnup The different sheet material of sheet material is configured at the non-skin of the back sheet in the crotch of pants type absorptive article with respect to surface side.

4 ＞ of ＜

Pants type absorptive article described in 2 ＞ of above-mentioned ＜ 1 ＞ or ＜, wherein in the non-skin phase of absorber Opposite side is configured with the back sheet of liquid difficulty permeability, and the second leakage-proof turnup includes the side of the back sheet and to cover the side The non-woven fabrics turned back of mode made of sheet material.

5 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 4 ＞, wherein form the second leakproof The length of the length direction of the absorbent main body of the sheet material of flange is shorter than the length of the direction of absorber.

6 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 4 ＞, wherein the first leakage-proof turnup Elastomeric element the length direction along absorbent main body length it is longer than the elastomeric element of the second leakage-proof turnup.

7 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 6 ＞, wherein the second leakage-proof turnup Elastomeric element the end of sternopleurite component side and the end of dorsal sheet member side be respectively positioned on than side seal portion lower end lean on waist end The position of portion side.

8 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 7 ＞, wherein the first leakage-proof turnup Above-mentioned upside fixed position in than above-mentioned downside fixed part by absorbent main body width direction inside position.

9 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 8 ＞, wherein the second leakage-proof turnup With more elastomeric elements, the back sheet of liquid difficulty permeability, the back sheet are configured in the opposite surface side of the non-skin of absorber Width direction end be located at be configured at second leakage-proof turnup outermost elastomeric element and be configured at innermost bullet Between property component.

10 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 9 ＞, wherein above-mentioned absorber tool There is absorbent core and coat the clad sheet of the absorbent core, the absorbent core is across the length direction Central Line of absorbent main body Both sides be respectively provided with the non-long-pending fibre portion in side, position and the non-long-pending fibre portion in the side of the outboard end of above-mentioned upside fixed part weigh It is folded, or positioned at long-pending fibre portion more non-than the side by the position of the inside of width direction.

11 ＞ of ＜

According to any one of above-mentioned 1 ＞ of ＜~＜, 9 ＞ record pants type absorptive article, wherein above-mentioned L2 relative to Ratio (the freedom of the leakage-proof turnups 37 of return portion 34c to second from the first leakage-proof turnup 34 of the second leakage-proof turnup 37 of above-mentioned L1 Length L1s of the length L2/ at end from the return portion 34c to free end 34a of the first leakage-proof turnup 34) it is 1.0 or more 6.0 hereinafter, excellent It is selected as 1.2 or more 4.0 or less.

12 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 11 ＞, wherein above-mentioned L1 and above-mentioned Ratio ((first leakage-proof turnup 34 length L1+ from return portion 34c to free end 34a of the combined length of L3 relative to above-mentioned L2 The distance between the return portion 34c and downside fixed part 35d of one leakage-proof turnup 34 L3)/first leakage-proof turnup 34 from return portion 34c To the length L2 of the free end of the second leakage-proof turnup 37) it is 1.0 or more 7.0 hereinafter, preferably 1.2 or more 4.0 or less.

13 ＞ of ＜

According to any one of above-mentioned 1 ＞ of ＜~＜, 12 ＞ record pants type absorptive article, wherein above-mentioned L4 relative to Ratio (the folding of the distance between return portion 31c and upside fixed part 35u of positive dough sheet 31 the first leakage-proof turnups of L4/ 34 of above-mentioned L3 Return the distance between portion 34c and downside fixed part 35d L3) it is 1.0 or more 6.0 hereinafter, preferably 1.2 or more 4.0 or less.

14 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 13 ＞, wherein above-mentioned L1 and above-mentioned The aggregate value of L3 relative to above-mentioned L4 ratio ((from the length L1+ of the return portion 34c to free end 34a of the first leakage-proof turnup 34 The distance between the return portion 34c and downside fixed part 35d of one leakage-proof turnup 34 L3)/positive dough sheet 31 return portion 31c and upside The distance between fixed part 35u L4) it is 1.0 or more 7.0 hereinafter, preferably 1.2 or more 4.0 or less.

15 ＞ of ＜

According to any one of above-mentioned 1 ＞ of ＜~＜, 14 ＞ record pants type absorptive article, wherein above-mentioned L1 relative to The ratio of the overall with L of above-mentioned absorbent main body is preferably 5% or more, and more preferably 8% or more, also preferably 40% are hereinafter, more Preferably 35% or less.

16 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 15 ＞, wherein above-mentioned L1 is preferably 10mm or more, more preferably 15mm or more, also preferably 100mm are hereinafter, more preferably 60mm or less.

17 ＞ of ＜

According to any one of above-mentioned 1 ＞ of ＜~＜, 16 ＞ record pants type absorptive article, wherein above-mentioned L2 relative to The ratio of the overall with L of above-mentioned absorbent main body is preferably 5% or more, and more preferably 8% or more, also preferably 40% are hereinafter, more Preferably 35% or less.

18 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 17 ＞, wherein above-mentioned L2 is preferably 10mm or more, more preferably 15mm or more, also preferably 100mm are hereinafter, more preferably 70mm or less.

19 ＞ of ＜

According to any one of above-mentioned 1 ＞ of ＜~＜, 18 ＞ record pants type absorptive article, wherein above-mentioned L3 relative to The ratio of the overall with L of above-mentioned absorbent main body is preferably 3% or more, and more preferably 5% or more, also preferably 40% are hereinafter, more Preferably 35% or less.

20 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 19 ＞, wherein above-mentioned L3 is preferably 10mm or more, more preferably 15mm or more, also preferably 80mm hereinafter, more preferably 60mm hereinafter, and preferably 10mm with Upper 80mm is hereinafter, more preferably 15mm or more 60mm or less.

21 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 20 ＞, wherein above-mentioned L1 and above-mentioned The combined length (L1+L3) of L3 is preferably 10% or more relative to the ratio of the overall with L of above-mentioned absorbent main body, more preferably 20% or more, also preferably 80% are hereinafter, more preferably 60% or less.

22 ＞ of ＜

According to any one of above-mentioned 1 ＞ of ＜~＜, 21 ＞ record pants type absorptive article, wherein above-mentioned L4 relative to The ratio of the overall with L of above-mentioned absorbent main body is preferably 3% or more, and more preferably 5% or more, also preferably 40% are hereinafter, more Preferably 35% or less.

23 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 22 ＞, wherein above-mentioned L3 is preferably 10mm or more, more preferably 15mm or more, also preferably 80mm are hereinafter, more preferably 60mm or less.

24 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 23 ＞, wherein constitute the second leakproof The end of the sternopleurite component side of the sheet material of flange is located on the main part of veutro chip part, and the end of the sheet material is than absorbing By the position of crotch side, there are terminals for the end of body.

25 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 24 ＞, wherein constitute the second leakproof The end of the dorsal sheet member side of the sheet material of flange is located on the main part of dorsal sheet member, and the end of the sheet material is than absorbing By the position of crotch side, there are terminals for the end of body.

26 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 13 ＞, wherein preferably the first leakproof The free end 34a of flange 34 and the root of the huckle of wearer nearby contact, the free end 37a of the second leakage-proof turnup 37 with from It is contacted around the huckle of the root interval of huckle.

27 ＞ of ＜

According to any one of above-mentioned 1 ＞ of ＜~＜, 26 ＞ record pants type absorptive article, wherein upside fixed part with The distance between downside fixed part L5 is no more than the distance between return portion and upside fixed part of positive dough sheet i.e. above-mentioned L4.

28 ＞ of ＜

According to any one of above-mentioned 1 ＞ of ＜~＜, 27 ＞ record pants type absorptive article, wherein upside fixed part with The distance between downside fixed part L5 is relative to the ratio that the distance between the return portion of positive dough sheet and upside fixed part are above-mentioned L4 Example preferably 3% or more, more preferably 5% or more, also preferably 97% or less, more preferably 95% or less.

29 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 28 ＞, wherein dorsal sheet member The length of article longitudinal direction X is longer than the length of the direction in side seal portion, and being thus formed in the left and right sides has the main part in side seal portion, With it is extending from the main part to the sides crotch C, in the left and right sides without the extension in the side seal portion.

30 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 13 ＞, wherein veutro chip part 2A With in main part 20a of the left and right sides with side seal portion 4,4, on the other hand, without prolonging from main part 20a to the sides crotch C The extension stretched.

31 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 30 ＞, wherein veutro chip part has There are waist pars contractilis and waist portion pars contractilis, dorsal sheet member to have waist pars contractilis, waist portion pars contractilis, extension flexible Portion.

32 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 31 ＞, wherein constitute sternopleurite portion It is engaged at the multiple joint portions for being formed as spreading shape between part and 2 pieces of dorsal sheet member so that elastomeric element does not pass through.

33 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 32 ＞, wherein in absorbent core The central portion of width direction has the grammes per square metre there is no the forming material of absorbent core or the forming material fewer than other parts The non-long-pending fibre portion in center.

34 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 33 ＞, wherein form the of a side The sheet material of the sheet material of one leakage-proof turnup and the second leakage-proof turnup of formation another party is made of a continuous piece.

35 ＞ of ＜

According to 12 pants type absorptive articles for recording of any one of ＞ and 4 ＞ of ＜~＜, 34 ＞ of ＞, ＜ of above-mentioned ＜, In, the sheet material for forming the second leakage-proof turnup is different sheet material with the sheet material for constituting the first leakage-proof turnup.

36 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 35 ＞, wherein side standing Elastomeric element is fixed between the side edge part of absorber and the positive dough sheet for coating the side edge part.

37 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 36 ＞, wherein turned in the first leakproof Central portion between the free end and base end part on side is configured with middle spring component.

38 ＞ of ＜

The pants type absorptive article recorded according to any one of above-mentioned 1 ＞ of ＜~＜, 37 ＞, wherein form the first leakproof The sheet material of flange or the second leakage-proof turnup is non-woven fabrics.

Industrial utilizability

Pant-type wearable article according to the present invention can be well maintained easness, the wearing feeling of dress, and can Prevent leakage caused by the gap in leg week and the apparent uneasy sense for leakage.

Claims

1. a kind of pants type absorptive article comprising：Configure the veutro chip part in the veutro of wearer；Configuration is in wearer Back side dorsal sheet member；With the absorbability master for the lengthwise for setting up and being fixed on the veutro chip part and the dorsal sheet member Body, the veutro chip part and the dorsal sheet member engage, and form a pair of of side seal portion, waist opening portion and a pair of of leg opening part, The pants type absorptive article is characterized in that：

The absorbent main body has the absorber of the positive dough sheet and liquid retainability that form liquid absorption face, in length direction Both sides are respectively provided with：First leakage-proof turnup of position of the free end positioned at the lateral margin than the absorber in the inner part；With than the suction The second leakage-proof turnup that the lateral margin of acceptor extends more outward,

The outside of the both side edges of the positive dough sheet and first leakage-proof turnup in the absorber has the flesh from the absorber Skin forms the sheet material of first leakage-proof turnup in the non-of the absorber with respect to the return portion that surface side is turned back to non-skin with respect to surface side Skin, to the position of interval on the inside of width direction, has and is fixed on respect to the both sides genesis from the absorber in surface side The upside fixed part of the positive dough sheet and the downside fixed part for being fixed on hypopleurite,

It enabling the length from the return portion of first leakage-proof turnup to free end for L1, enabling second leakage-proof turnup It is L2, enables first leakage-proof turnup from length of the return portion of first leakage-proof turnup to the free end of second leakage-proof turnup The return portion and the distance between the downside fixed part be L3, enable the return portion of the positive dough sheet and the upside When the distance between fixed part is L4, meet whole relational expressions (1)~(4) below：

(1)L1≤L2

(2)L2≤L1+L3

(3)L3≤L4

(4)L4≤L1+L3。

2. pants type absorptive article according to claim 1, it is characterised in that：

The elastomeric element of the elastomeric element of second leakage-proof turnup of one side and second leakage-proof turnup of another party is each other Parallelly configuration and the extension configuration on the length direction of the absorbent main body respectively.

3. pants type absorptive article according to claim 1, it is characterised in that：

It is configured with the back sheet of liquid difficulty permeability in the opposite surface side of the non-skin of the absorber, second leakproof is formed and turns over The sheet material on side is the sheet material different from the sheet material of the first leakage-proof turnup is constituted, and is configured at the crotch of pants type absorptive article The back sheet non-skin with respect to surface side.

4. pants type absorptive article according to claim 1, it is characterised in that：

It is configured with the back sheet of liquid difficulty permeability, the second leakage-proof turnup packet in the opposite surface side of the non-skin of the absorber Include the side of the back sheet and the non-woven fabrics turned back in a manner of covering the side made of sheet material.

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

Length of the sheet material of second leakage-proof turnup on the length direction of the absorbent main body is formed than the absorber The direction length it is short.

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

The elastomeric element of first leakage-proof turnup is compared with the elastomeric element of second leakage-proof turnup, along the absorbability The length of the length direction of main body is longer.

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

The end of the end and the dorsal sheet member side of the sternopleurite component side of the elastomeric element of second leakage-proof turnup Portion is respectively positioned on the position that waist end side is leaned on than the lower end in the side seal portion.

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

Upside fixed position described in first leakage-proof turnup is in wider by the absorbent main body than the downside fixed part Spend the position of the inside in direction.

9. pants type absorptive article according to claim 1, it is characterised in that：

Second leakage-proof turnup has more elastomeric elements, difficult configured with liquid with respect to surface side in the non-skin of the absorber The back sheet of permeability, the end of the width direction of the back sheet are located at the outermost elasticity for being configured at second leakage-proof turnup It component and is configured between innermost elastomeric element.

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

The absorber has absorbent core and coats the clad sheet of the absorbent core, and the absorbent core is across the absorbability The both sides of the length direction Central Line of main body are respectively provided with the non-long-pending fibre portion in side, the position of the outboard end of the upside fixed part The position of inside Chong Die with the non-long-pending fibre portion in the side or that width direction is leaned on positioned at long-pending fibre portion more non-than the side.

11. pants type absorptive article according to claim 10, it is characterised in that：

There is forming material or the formation material there is no the absorbent core in the central portion of the width direction of the absorbent core The non-long-pending fibre portion in the grammes per square metre of the material center fewer than other parts.

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

The L2 is 1.0 or more 6.0 or less relative to the ratio of the L1.

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

The combined length of the L1 and the L3 are 1.0 or more 7.0 or less relative to the ratio of the L2.

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

The L4 is 1.0 or more 6.0 or less relative to the ratio of the L3.

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

The combined length of the L1 and the L3 are 1.0 or more 7.0 or less relative to the ratio of the L4.

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

The L1 is 5% or more 40% or less relative to the ratio of the overall with of the absorbent main body.

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

The L1 is 10mm or more 100mm or less.

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

The L2 is 5% or more 40% or less relative to the ratio of the overall with of the absorbent main body.

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

The L2 is 10mm or more 100mm or less.

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

The L3 is 3% or more 40% or less relative to the ratio of the overall with of the absorbent main body.

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

The L3 is 10mm or more 80mm or less.

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

The combined length of the L1 and the L3 relative to the overall with of the absorbent main body ratio be 10% or more 80% with Under.

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

The L4 is 3% or more 40% or less relative to the ratio of the overall with of the absorbent main body.

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

The L3 is 10mm or more 80mm or less.

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

The free end of first leakage-proof turnup is nearby contacted with the root of the huckle of wearer, second leakage-proof turnup Free end is contacted with around the huckle of the root interval of huckle.

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

The distance between the upside fixed part and the downside fixed part are no more than the return portion of the positive dough sheet and are somebody's turn to do The distance between upside fixed part.

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

The distance between the upside fixed part and the downside fixed part are relative to the return portion of the positive dough sheet and this The ratio of the distance between upside fixed part is 3% or more 97% or less.

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

The length of the article longitudinal direction of the dorsal sheet member is longer than the length of the direction in the side seal portion, is thus formed in left and right Both sides have the main part in the side seal portion, and extends from the main part to crotch side, in the left and right sides without the side seal portion Extension.

29. pants type absorptive article according to claim 28, it is characterised in that：

The end for constituting the dorsal sheet member side of the sheet material of second leakage-proof turnup is located at the described of the dorsal sheet member On main part, the end of the sheet material becomes terminal in the end than the absorber by the position of crotch side.

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

The veutro chip part is in main part of the left and right sides with the side seal portion, without from the main part to crotch The extension that portion side extends.

31. pants type absorptive article according to claim 30, it is characterised in that：

The end for constituting the sternopleurite component side of the sheet material of second leakage-proof turnup is located at the described of the veutro chip part On main part, the end of the sheet material becomes terminal in the end than the absorber by the position of crotch side.

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

The veutro chip part have waist pars contractilis and waist portion pars contractilis, the dorsal sheet member have waist pars contractilis, Waist portion pars contractilis, extension pars contractilis.

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

It constitutes between the veutro chip part and 2 pieces of the dorsal sheet member in the multiple joint portion quilts for being formed as spreading shape Engagement so that elastomeric element does not pass through.

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

It forms the sheet material of second leakage-proof turnup of a side and forms the sheet material of second leakage-proof turnup of another party by even A continuous piece is constituted.

35. according to the pants type absorptive article described in claim 1,2 and 4, it is characterised in that：

The sheet material for forming second leakage-proof turnup and the sheet material for constituting first leakage-proof turnup are different sheet material.

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

The elastomeric element of side standing be fixed on the side edge part of the absorber with coat the side edge part the positive dough sheet it Between.

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

Central portion between the free end and base end part of first leakage-proof turnup is configured with middle spring component.

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

The sheet material for forming first leakage-proof turnup or second leakage-proof turnup is non-woven fabrics.