CN107106350A

CN107106350A - Absorbent commodity

Info

Publication number: CN107106350A
Application number: CN201580070873.2A
Authority: CN
Inventors: 西谷和也; 木下英之
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2014-12-24
Filing date: 2015-07-17
Publication date: 2017-08-29
Anticipated expiration: 2035-07-17
Also published as: KR20170099972A; WO2016103773A1; JP2016119988A; KR102508046B1; CN107106350B; TW201634019A; JP6456137B2; TWI702943B

Abstract

A kind of absorbent commodity that absorbent cores can be made to be fitted with the buttocks of wearer, suppress leakage is provided.Absorbent commodity (1) has：Discharge port contact area (S1), it is relative with the discharge port of wearer；Posterior region (S2), it is located at the position than discharge port contact area (S1) rearward；Absorbent cores (31), it is configured at discharge port contact area (S1) and posterior region (S2).It is provided with posterior region (S2) absorbent cores (31)：Front and rear slit (42), it is configured at the center of the width (W) of absorbent cores (31), extends along the fore-and-aft direction (L) of absorbent commodity (1)；Slit (43) is aided in, it is connected with front and rear slit (42), and extended from front and rear slit (42) to the outside of width (W).The lateral border (43E) of auxiliary slit (43) is located at position of the lateral border (31E) by the inner side of width (W) of the absorbent cores (31) than posterior region (S2).

Description

Absorbent commodity

Technical field

The present invention relates to the absorbent commodities such as sanitary napkin.

Background technology

There is a kind of absorbent commodity disclosed in patent document 1, the absorbent commodity has：Middle high portion, it connects to skin Swell contacting surface side；Leakage-proof socket, it is arranged at two outsides of the width in middle high portion, and is that surface patch and absorber compression are formed 's.The discharge port contact area of absorbent commodity is clipped in the state of dress is good by the leg of wearer, is applied towards width side To inner side power.If putting on the absorbent commodity of patent document 1 towards the power of the inner side of width, leakage-proof socket is to wearing High portion's protuberance in the in-leg skin lateral bending folding for the person of wearing, with this absorber that accompanies (with reference to the paragraph 0016 of patent document 1).

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2012-239722 publications

The content of the invention

But, above-mentioned absorbent commodity the problem of that has following point.

The cross sectional shape of the body along width near the buttocks of wearer be left and right buttocks heave, the buttocks Between the shape that is recessed.High portion rearward extends from discharge port contact area in patent document 1, therefore, if discharge port contact zone The absorber protuberance in domain, then the absorber of posterior region also swells.High portion's grammes per square metre is significantly in the posterior region of patent document 1 Constitute, therefore, be bulged to the thickness swelled when wearer side thickening, it is difficult to along the concave configuration of the buttocks of body.It is tied Really, gap is produced between the buttocks and absorbent commodity of wearer, leakage is produced sometimes.

In addition, along the cross sectional shape of the body of the fore-and-aft direction of wearer being carried from discharge port contact area to rear The shape of circularity.If the absorbent cores of posterior region are not configured along the circularity of body, leaked after producing sometimes.

The present invention be in view of above-mentioned problem and make, its object is to provide one kind to make absorbent cores and wearer Buttocks laminating, suppress leakage absorbent commodity.

In order to solve above-mentioned problem, the absorbent commodity (absorbent commodity 1) of the disclosure has：Discharge port contact area (discharge port contact area S1), it is relative with the discharge port of wearer；Posterior region (posterior region S2), it is located at than the row The position of drain port contact area side rearward；Absorbent cores (absorbent cores 31), after it is configured at the discharge port contact area and is described Side region, the purport of the absorbent commodity is that the absorbent cores of side region are provided with the rear：Front and rear slit (front and rear slit 42), the center of its width for being configured at the absorbent cores, extends along the fore-and-aft direction of the absorbent commodity；Auxiliary Slit (auxiliary slit 43), it is connected and the outside extension from the front and rear slit along width with the front and rear slit, The lateral border (lateral border 43E) of the auxiliary slit is located at the lateral border (lateral border 31E) of the absorbent cores than the posterior region By the position of the inner side of width.

In addition, the absorbent commodity (absorbent commodity 1) of the disclosure has：Discharge port contact area (discharge port contact zone Domain S1), it is relative with the discharge port of wearer；Posterior region (posterior region S2), it is located at than the discharge port contact area The position of side rearward；Absorbent cores (absorbent cores 31), it is configured at the discharge port contact area and the posterior region, the absorption The purport of property article is that the absorbent cores of side region are provided with the rear：1st pars convoluta (front and rear slit 42), is consisted of, institute The center for stating the width of the absorbent cores of posterior region can be to wearer's lateral bend into convex；2nd pars convoluta (auxiliary slit 43) the deformation basic point that, its absorbent cores for constituting the posterior region is bent along thickness direction, and extend along width, The lateral border (lateral border 43E) of 2nd pars convoluta is located at the lateral border (lateral border 31E) than the absorbent cores by width The position of inner side.

Brief description of the drawings

Fig. 1 is the top view of the absorbent commodity of embodiment.

Fig. 2 is the rearview of the absorbent commodity shown in Fig. 1.

Fig. 3 is the schematic sectional view of the Section A-A shown in Fig. 1.

Fig. 4 (a) and Fig. 4 (b) are the section views of the state being clothed on wearer of the absorbent commodity 1 shown in Fig. 1 Figure.

Fig. 5 is the sectional view of the state being clothed on wearer of the absorbent commodity 1 shown in Fig. 1.

Embodiment

(1) overall structure of absorbent commodity

1~Fig. 3 of reference picture is illustrated to the overall structure of the absorbent commodity 1 of embodiment.In addition, following attached In the record of figure, same or similar reference is marked to same or similar part.But, accompanying drawing is schematical, is answered It is different from the ratio of reality that this notices ratio of each size etc..Thus, specific size etc. should be sentenced with reference to the following description It is disconnected.In addition, accompanying drawing each other also can the different part of relation, ratio including mutual size.

Fig. 1 is the top view of absorbent commodity, and Fig. 2 is the rearview of absorbent commodity.Fig. 3 is the A-A section views shown in Fig. 1 Figure.The absorbent commodity 1 of present embodiment is the sanitary napkin of ight.

Absorbent commodity 1 have to the front side (veutro) of wearer and rear side (dorsal part) extension fore-and-aft direction L, with it is front and rear The width W of direction L-orthogonal, the thickness direction of the relative surface side T1 of skin and non-skin with respect to surface side T2 extensions in wearer T。

Absorbent commodity has the discharge port contact area S1 for the discharge port contact area for being configured at wearer, positioned at excretion The posterior region S2 and the front area S3 positioned at discharge port contact area S1 front side of mouth contact area S1 rear side.Rear side The length on fore-and-aft direction L of the length than discharge port contact area S1 on region S2 fore-and-aft direction L is long.Discharge port contact zone Domain S1 is the region for the lower crotch that underwear is worn in the state of underwear is clothed to.In discharge port contact area S1 be configured with The flap discussed afterwards.Border between discharge port contact area S1 and posterior region S2 is the width slit 41 then discussed.It is wide The front-end edge of degree slit 41 is discharge port contact area S1 end edge, before the end edge posterior region S2 of width slit 41 Ora terminalis.In addition, posterior region S2 end edge is the end edge of absorbent commodity 1.Discharge port contact area S1 and front area Border between S3 is the front-end edge of flap 3.The front-end edge of flap 3 is the root of flap 3, be flap 3 farthest to Part in the part of the inner side depression of width, positioned at front side.The root of the front side of flap 3 is discharge port contact area S1 front-end edge and be front area S3 end edge.In addition, front area S3 front-end edge is the front end of absorbent commodity 1 Edge.In figure 3 it is shown that the scope of discharge port contact area S1, posterior region S2 and front area S3 fore-and-aft direction.

Absorbent commodity 1 possesses absorber 30, the skin face positioned at the position than absorber 30 by skin with respect to surface side T1 Piece 10 and the non-skin dough sheet 20 positioned at the position than absorber 30 by non-skin with respect to surface side T2.Skin dough sheet 10 has： The surface patch 11 of liquid permeability, it covers at least width center of absorber 30；Lateral plate 12, it covers the outside of surface patch 11 Edge (outboard end of width), extends to the outside of width.Non- skin dough sheet 20 is the piece of opaque liquid.

Surface patch 11 is the piece of the liquid permeable liquid permeability such as body fluid.Surface patch 11 covers the table of at least absorber 30 Face.As long as the non-woven fabrics of surface patch 11, weave cotton cloth, the material of the sheet of liquid permeable construction such as apertured plastic piece, net slice, Just it is not particularly limited.As weaving cotton cloth, the raw material of non-woven fabrics, any one in natural fiber, chemical fibre can be used.

Lateral plate 12 can be selected from the material same with the material of surface patch 11.But, in order to prevent menses from crossing lateral plate 12 and to absorbent commodity 1 foreign side flow, lateral plate 12 preferably have hydrophobicity or hydrophobicity.Lateral plate 12 is configured at absorber 30 Lateral border, flap 3 and buttocks fin 4.

Non- skin dough sheet 20 has the length with the same length of skin dough sheet 10.Non- skin dough sheet 20 can be used With polythene strip, based on the laminated nonwoven fabric of polypropylene etc., the resin film of gas permeability, spun-bonded non-woven fabrics or spun lacing without Spin and be bonded to sheet material of resin film of gas permeability etc. on the non-woven fabrics such as cloth.

Absorber 30 has the core covering 32 of the absorbent cores 31 for being laminated absorbing material and covering absorbent cores 31.Absorb Material can for example illustrate hydrophilic fibre, paper pulp and SAP.In addition, the absorbent cores 31 of the absorber 30 of present embodiment End edge and the end edge of core covering 32 are substantially aligned.

Absorbent cores 31 are configured at discharge port contact area S1 and posterior region S2.In addition, absorbent cores 31 both can be with segmentation The state opened is respectively arranged at discharge port contact area S1 and posterior region S2, can also across discharge port contact area S1 and rear side Configure region S2.In addition, absorbent cores 31 are configured at least discharge port contact area S1 and posterior region S2, it can also match somebody with somebody It is placed in discharge port contact area S1, posterior region S2 and front area S3.

Absorbent cores 31, which have, is located at the lateral border 31E than absorbent cores 31 by high portion in the position of the inner side of width 33.Middle high portion 33 is located in the contact area S1 of discharge port, positioned at the lateral border 31E of the absorbent cores 31 than discharge port contact area S1 By the position of the inner side of width.The lateral border of absorbent cores 31 at the thickness ratio discharge port contact area S1 in middle high portion 33 31E thickness is thick.Lateral border 31E of the grammes per square metre of the absorbing material in middle high portion 33 than the absorbent cores 31 at the contact area S1 of discharge port Absorbing material grammes per square metre it is high.Middle high portion 33 is located at the rear side in the contact area S1 of discharge port, adjacent with width slit 41.At this The lateral border in high portion 33 is provided with absorber 30 in embodiment and skin dough sheet 10 compressed along thickness direction Compression unit 80.

Absorbent cores 31 have width slit 41, front and rear slit 42 and auxiliary slit 43.The width slit 41 of absorbent cores 31, Front and rear slit 42 and auxiliary slit 43 are configured to, and absorbent cores 31 can be bent along thickness direction T.

The grammes per square metre of the absorbing material of width slit 41, front and rear slit 42 and auxiliary slit 43 is than the absorbent cores 31 of surrounding The grammes per square metre of absorbing material is low.The absorbent cores 31 of surrounding are the absorbent cores in the region adjacent with width slit etc., are, for example, in excretion Adjacent with width slit 41 mouthful contact area S1 absorbent cores and in absorbent cores adjacent with width slit 41 posterior region S2. In addition, width slit 41, front and rear slit 42 and auxiliary slit 43 are gram of the grammes per square metre than the absorbent cores 31 of surrounding of absorbing material Low region, both can be that grammes per square metre is 0 but be configured with from surrounding for the grammes per square metre in 0 region or design again The region for the absorbing material that absorbent cores 31 are mixed into.

The width slit 41 of present embodiment, front and rear slit 42 and the grammes per square metre in the design of slit 43 is aided in be 0.Cause And, in the thickness directiont the region overlapping with width slit 41, the region overlapping with front and rear slit 42 and with auxiliary slit 43 Overlapping region, absorbing material is configured without between skin dough sheet 10 and non-skin dough sheet 20.In addition, in the thickness directiont Region, with front and rear slit 42 overlapping region and with the auxiliary slit 43 overlapping region overlapping with width slit 41, skin Dough sheet 10 and non-skin dough sheet 20 are not engaged.

In addition, in the region overlapping with width slit 41, the region overlapping with front and rear slit 42 and with aiding in slit 43 Overlapping region, positioned at core covering 32 and core positioned at the non-skin surface side of absorbent cores 31 of the skin with respect to surface side of absorbent cores 31 Covering 32 can both be engaged, and can not also be engaged.For example, utilizing core covering 32 He of the skin with respect to surface side positioned at absorbent cores 31 Non- skin positioned at absorbent cores 31 can suppress losing shape for absorbent cores 31 with respect to the structure that the core covering 32 of surface side is engaged.In addition, In the region overlapping with width slit 41, the region overlapping with front and rear slit 42 and the region overlapping with auxiliary slit 43, table Dough sheet 11 and core covering 32 can both be engaged, and can not also be engaged.In addition, the region overlapping with width slit 41, with it is front and rear The overlapping region of slit 42 and the region overlapping with auxiliary slit 43, non-skin dough sheet 20 and core covering 32 can both be engaged, It can not also engage.

Width slit 41, front and rear slit 42 and auxiliary slit 43 turn into the border of variation in rigidity.Specifically, for example than The rigidity in the region of the forward side of width slit 41 is rigid different from than the region of side rearward of width slit 41.More specifically, Grammes per square metre than absorbing material of the grammes per square metre than width slit 41 of the absorbing material in the region of the forward side of width slit 41 is high.In addition, Grammes per square metre than absorbing material of the grammes per square metre than width slit 41 of the absorbing material in the region of side rearward of width slit 41 is high.

Width slit 41 extends between discharge port contact area S1 and posterior region S2 along width W.Width is narrow Seam 41 extends along at least width, both can be parallel with width linear or not with width Direction it is parallel and relative to width is inclined linear or curve-like.The width slit of present embodiment is width slit 41 The center of width be projected into the curve character at rear.More specifically, the centre bit of the width of width slit 41 In the position of the lateral border than width slit 41 rearward.The center of the width of width slit 41 is directed towards the convex of rear Shape.In addition, the length on the fore-and-aft direction of width slit be able to can also both be changed with constant.In addition, the front and back of width slit Upward length is more than 10mm and below 50mm, more preferably the length on the fore-and-aft direction of width slit be more than 10mm and Below 30mm.

For example, in the case that the length on the fore-and-aft direction of width slit 41 is less than 10mm, can not fully obtain sometimes Obtain moving into row buffering or the effect separated to the rear side of the motion of the front side of width slit 41 and width slit 41.Separately Outside, in the case that the length on the fore-and-aft direction of width slit 41 is more than 50mm, motion to the front side of width slit 41 and Moving into row buffering or the effect separated for the rear side of width slit 41 becomes big, but feeling at ease as absorbent commodity sometimes Sense reduction.

Additionally, it is preferred that the length on the width of width slit 41 is more than 25mm.In general, the physiology of ight is used Length (length on the width of the higher part of grammes per square metre) in sanitary napkin on the width in high portion 33 is mostly More than 25mm and below 30mm.If high portion 33 is continuously formed in discharge port contact area S1 and posterior region S2 in for example, Due to high portion in this, discharge port contact area S1 motion links with posterior region S2 sometimes.But, the width of width slit 41 Length on direction is more than 25mm, is separated in the longitudinal direction so as to high portion 33 in suppressing, discharge port contact area S1 motion links with posterior region S2.

Width slit 41 can both be formed at the whole region of the width of absorbent cores 31, can also be formed at absorbent cores Width a part region.The width slit 41 of present embodiment is formed at the whole area of width of absorbent cores 31 Domain.The lateral border 41E of width slit 41 is located at the lateral border 31E of absorbent cores 31.Thus, discharge port contact area S1 absorbent cores 31 and posterior region S2 absorbent cores 31 are separated by width slit 41 along fore-and-aft direction.In addition, for present embodiment For absorber 30, the lateral border of the lateral border and absorber 30 of absorbent cores 31 is substantially aligned.Thus, on accompanying drawing, width is shown The lateral border 41E of degree slit 41 aligns with the lateral border of absorber 30.

Front and rear slit 42 extends in posterior region S2 along fore-and-aft direction L.Front and rear slit 42 prolongs at least along fore-and-aft direction Stretch, both can be parallel with fore-and-aft direction linear or not parallel with fore-and-aft direction and relative to front and back To the linear or curve-like tilted.Front and rear slit 42 can both be formed at the fore-and-aft direction of posterior region S2 absorbent cores 31 Whole region on L, the region for the part that can also be formed on the fore-and-aft direction of posterior region S2 absorbent cores 31.This reality The front and rear slit 42 for applying mode is formed at whole region on the fore-and-aft direction L of posterior region S2 absorbent cores.Thus, side area Domain S2 absorbent cores 31 are separated by front and rear slit 42 along width.

It is further preferred, that the front-end edge of front and rear slit 42 be located at than the fore-and-aft direction away from flap 3 center 3LC away from From the position position rearward at the rear for 30mm.It is further preferred, that the end edge of front and rear slit 42 is located at than away from flap The center 3LC of 3 fore-and-aft direction distance is the position of the position at 200mm rear rearward.The front and back of front and rear slit 42 Upward length is preferably more than 150mm.In the section along the fore-and-aft direction of the body of wearer, the groove between buttocks is present To the scope of coccyx in around more than perineum.Using such front and rear slit 42, using front and rear slit as summit The deformation of convex is easily configurable the groove between buttocks.

In addition, the length on the width of front and rear slit 42 is more than 1mm and below 15mm.In for example front and rear slit 42 Width on length be less than 1mm in the case of, when convex is deformed into front and rear slit 42 for summit, Ge Zhekuan The absorbent cores 31 of degree slit configuration are interfered with each other, it is difficult to be stably deformed into convex.In addition, in the width of front and rear slit 42 On length more than 15mm in the case of, between being configured to front and rear slit 42 for the crushed element of the convex on summit between buttocks When gap, not there are absorbent cores in the crushed element of convex, therefore, the absorption of body fluid sometimes just becomes insufficient.

Posterior region S2 absorbent cores 31 have the 1st region 311 and are located at the width in the 1st region 311 respectively 2nd region 312 in outside and the 3rd region 313.The width in the 1st region 311, the 2nd region 312 and the 3rd region 313 is shown in Fig. 1 The scope in direction.1st region 311, the 2nd region 312 and the 3rd region 313 are in the direction of the width by posterior region S2 absorption The region of the trisection of core 31.1st region 311 is the region for being located at width center in the region of trisection.2nd region 312 be the region of the sidepiece positioned at width in the region of trisection.During 3rd region 313 is the region of trisection Region positioned at the other side of width.In addition, becoming for the length on the width of posterior region S2 absorbent cores The structure of change, is set to the region of the trisection of the absorbent cores 31 adjacent with width slit 41 in the direction of the width.

Front and rear slit 42 is arranged at the 1st region 311.Front and rear slit 42 can also be configured at the width side of absorbent commodity 1 To W center.Front and rear slit 42 is configured to, and posterior region S2 absorbent cores 31 can be bent along thickness direction T, in more detail and Speech, is configured to, posterior region S2 absorbent cores 31 can swell to wearer side.Front and rear slit 42 constitutes the 1st pars convoluta.

Width slit 41 is connected with front and rear slit 42.Thus, under vertical view, discharge port contact area S1 absorbent cores 31, Absorbent cores 31 (for example, absorbent cores positioned at the left side of wearer), the posterior region of posterior region S2 width W side The absorbent cores 31 (for example, absorbent cores positioned at the right side of wearer) of S2 width W opposite side are partitioned from.In addition, Width slit 41 and front and rear slit 42 can also be separated.

Auxiliary slit 43 is connected with front and rear slit 42 and extended from front and rear slit 42 to width W outside.Auxiliary is narrow Seam 43 extends along at least width, both can be parallel with width linear or not with width Direction it is parallel and relative to width is inclined linear or curve-like.The width of slit 42 after aiding in slit 43 respectively forwardly Spend the both sides extension in direction.Auxiliary slit 43 is provided with multiple at spaced intervals along fore-and-aft direction L.Aid in the outside of slit 43 Edge 43E is located at positions of the lateral border 31E by width W inner side of the absorbent cores 31 than posterior region S2.That is, it is narrow in auxiliary Absorbing material is configured with the outside of the width of seam 43.In addition, auxiliary slit 43 can also extend to posterior region S2 suction Receive the lateral border 31E of core 31.Slit 43 is aided in as the inner side (the front and rear side of slit 42) of W in the width direction is towards width W Outside go and extend to front side.

Auxiliary slit 43 is configured to, and constitutes the deformation basic point that posterior region S2 absorbent cores 31 are bent along thickness direction. Slit 43 is aided in constitute the 2nd pars convoluta.In addition, the 1st pars convoluta and the 2nd pars convoluta can be not only made up of front and rear slit, but also can be with It is made up of other structures.For example, the 1st pars convoluta and the 2nd pars convoluta both can be by making the pressure that at least absorbent cores are compressed along thickness direction Contracting portion composition, can also be different from the grammes per square metre of surrounding by the grammes per square metre due to absorbent cores and the different region of rigidity is constituted, can also It is made up of the cotton ginning by recess and the occlusion shaping of convex portion.

Absorbent commodity is provided with the compression unit 80 that at least absorbent cores are compressed along thickness direction.Compression unit 80 has There are front side compression unit 81, rear side compression unit 82 and buttocks fin compression unit 83.Front side compression unit 81 is configured at discharge port contact Region S1 and front area S3, is that absorber 30 and surface patch 11 compress along thickness direction.Front side compression unit 81 exists Prolong by the position in two outsides of width along fore-and-aft direction at the center of width relative to discharge port contact area S1 Stretch.The front-end edge of front side compression unit 81 is directed towards the tapered tapered shape in front side.

Rear side compression unit 82 is respectively arranged at posterior region S2 the 2nd region 312 and the 3rd region 313, is the He of absorber 30 Surface patch 11 compresses along thickness direction.Rear side compression unit 82 is arranged in the region for being configured with absorbent cores.Rear side pressure Contracting portion 82 extends in the position relative to auxiliary slit 43 by two outsides of width along fore-and-aft direction L.Rear side compression unit 82 extend along at least fore-and-aft direction, both can be parallel with fore-and-aft direction linear or not with front and back To it is parallel and relative to the inclined curve-like of fore-and-aft direction.Rear side compression unit 82 is located at than auxiliary slit 43 by the outer of width Side and than absorbent cores lateral border by width inner side position.Rear side compression unit 82 in a thickness direction not with auxiliary Slit 43 is overlapping.In addition, front side compression unit 81 and at least absorbent cores of rear side compression unit 82 are by compression.Rear side compression unit 82 is Compressed and shape with respect to surface side T2 towards non-skin with respect to surface side T1 from skin by absorbent cores 31 and skin dough sheet (surface patch 11) Into.

Buttocks fin compression unit 83 is configured at posterior region S2, is lateral plate 12 and non-skin dough sheet 20 along thickness direction pressure Contracting.Buttocks fin compression unit 83 is arranged at buttocks fin.Buttocks fin compression unit 83 extends along fore-and-aft direction.Buttocks Fin compression unit 83 is directed towards width W convex form protruding outside.

Absorbent commodity 1 has flap 3 and buttocks fin 4.Flap 3 and buttocks fin 4 are relative to discharge port contact area The lateral border 31E of S1 absorbent cores 31 extends to the outside of width.

Flap 3 has lateral plate 12 and non-skin dough sheet 20.The center 3LC of the fore-and-aft direction of flap 3 and the excretion of wearer Mouth is arranged as opposed to.Flap 3 is configured to turn back to the non-side of skin dough sheet 20, when in use to underwear crotch non-skin Turned back with respect to surface side.Buttocks fin 4 is located at the rear side of flap 3, is arranged at posterior region S2.Buttocks fin 4 is configured to, and is using The non-skin of Shi Buxiang underwears turns back with respect to surface side and is configured at the skin of underwear with respect to surface side.In addition it is also possible in the He of flap 3 Buttocks fin 4 is configured with absorbing material.

As shown in Fig. 2 the non-skin opposite face in non-skin dough sheet 20 is provided with and is coated with consolidating in by absorbent commodity Due to the adhesion area 60 of underwear S adhesive.Adhesion area 60 has：The non-skin of absorbent cores 31 is configured at respect to surface side 1st main body adhesion area 61 and the 2nd main body adhesion area 62；It is configured at the flap adhesion area 63 of flap 3；It is configured at the buttocks wing The buttocks fin adhesion area 64 of piece 4.

1st main body adhesion area 61 is separated along fore-and-aft direction with the 2nd main body adhesion area 62, is configured at than the 2nd main body The position of adhesion area 62 on the front.1st main body adhesion area 61 connects in the position than the forward side of width slit 41 across discharge port Configure with touching region S1 and front area S3.2nd main body adhesion area 62 is configured in the position than the side rearward of width slit 41 Posterior region S2.

Width slit 41 and front and rear slit 42 be not overlapping with adhesion area 60 in the thickness directiont.In other words, in vertical view When be configured with width slit 41 and the region of front and rear slit is not provided with adhesion area 60.In addition, in flap 3 and buttocks fin 4 It is provided with adhesion area 60.

Adhesion area 60 before use in the state of covered by stripping film 65.Stripping film 65 prevents bonding agent using preceding bad Change.Stripping film 65 is peeled off by wearer when in use.In addition, in the absorbent commodity without stripping film, can also constitute To prevent bonding agent using preceding deterioration using the package panel individually packed to absorbent commodity.

The measure of " thickness of absorber " in this specification is carried out by following assay method.

In the case where absorbent commodity 1 encloses packaging bag etc., following sample is used：Absorbent commodity is taken out from packaging bag 1, in this condition, it placed 12 hours under 20 DEG C ± 2 DEG C, 60% ± 5%RH of relative humidity atmosphere.

Locate and be set to the width central portion of absorber.When measure, absorbent commodity contraction is not set to State be measured and be set to make the retractility component of absorbent commodity extend after state be measured.In addition, will remove The part in addition to absorber such as skin dough sheet and non-skin dough sheet beyond absorber is removed.It is rugged using Co., Ltd.'s tail Made amesdial PEACOCK is made, gauge head uses diameter 10mm gauge head, prepare the sample that size is 30mm × 30mm, survey The thickness of the fixed sample.Analyzer presses to 3g/cm with the measure to sample²Mode be adjusted.Here, to 10 samples Above-mentioned measure is carried out with each state, value is averaged and is set to length.

In addition, the measure of " grammes per square metre and density of absorber " in this specification is carried out by following assay method.

In the packaged absorbent commodity of package body, package body is broken a seal, by the absorbent commodity exhibition folded up Open and the thickness and area of grammes per square metre to be determined and the part of density are measured.Next, grammes per square metre and density will be determined Part is cut out from absorbent commodity, and the weight of the part to cutting out is measured.Next, from the part cut out by surface The part in addition to absorber such as piece and back sheet is got rid of, and the weight to absorber is measured.Weight based on absorber Amount and to determine the area of part of grammes per square metre and density and calculate grammes per square metre.Density is calculated based on grammes per square metre and thickness.

In addition, the measure of " length " in this specification is carried out by following assay method.

Next, using affine tape measure (the tape portion for determining Co. Ltd. system of Japan：Using glass fibre as base material, with poly- Vinyl chloride is coating) and along measure object position, the length to the state at measure object position is measured.Here, Above-mentioned measure is carried out with each state for 10 samples, value is averaged and is set to length.

(2) action effect

The central front and rear slit 42 of the width for being arranged at posterior region S2 of the absorbent commodity 1 of present embodiment Swelled as the 1st pars convoluta to wearer side., can be behind the rear positioned at discharge port contact area S1 using front and rear slit 42 Side region S2 makes the gap that absorbent cores 31 are fitted between the buttocks of wearer.In addition, the profit of absorbent commodity 1 of present embodiment The auxiliary slit 43 for being used as the 2nd pars convoluta forms the deformation basic point extended along width.Posterior region S2 absorbent cores 31 Can with aid in slit 43 be basic point deform, it is easy to the circularity along the body in the section on the fore-and-aft direction L of body is matched somebody with somebody Put.

Fig. 4 is the sectional view for the state that absorbent commodity 1 is worn on wearer.Fig. 4 (a) is discharge port contact area S1 The sectional view along width, Fig. 4 (b) is the posterior region S2 sectional view along width.Fig. 4 (a) with On the basis of Fig. 1 section B-B, Fig. 4 (b) is on the basis of Fig. 1 C-C sections.In Fig. 4, the line of the body of wearer is represented Represented with double dot dash line.When absorbent commodity 1 of the dress as sanitary napkin, absorbent commodity is fixed on underwear S, the underwear is pulled up and worn.Being sized to than dress on the width of the absorbent cores of general sanitary napkin Size on the width of the hip crotch of person is wide.Therefore, the discharge port contact area S1 of the absorbent commodity 1 of wearing effect is worn Two legs of wearer are clipped, by outside in the width direction towards the inner side of width power.

Along the width W of absorbent cores 31 wearer body cross sectional shape near the in-leg and near buttocks not Together.Specifically, the moon of the in-leg of wearer splits the body along width of (around the introitus of menses outflow) nearby Cross sectional shape be labia majora relative to thigh root protrude, the convex form prominent to absorbent commodity side.Absorbent commodity Discharge port contact area S1 and wearer lower crotch region be arranged as opposed to.Absorbent commodity 1 be worn on underwear S and It is dressed in the state of wearer, is deformed into discharge port contact area S1 absorbent cores by the prominent pressure of labia majora and to non-flesh Skin swells with respect to surface side.At the in-leg of wearer, discharge port contact area S1 absorbent cores are configured along body, can be suppressed Leakage at in-leg.

In addition, anus, anal cleft are located at the position than perineum rearward, the perineum part is leaned in the labia majora than wearer The position at rear.Cross sectional shape than the body along width near the position of the perineum rearward is width Central concave shape.The posterior region S2 and the wearer of absorbent commodity buttocks are arranged as opposed to.For example, ight Sanitary napkin is used with back floating position mostly.What is leaked so produces mostly, i.e. disposably arranged in a large amount of menses Go out and the absorption of menses at the underface of introitus have little time situation, positioned at the underface of introitus absorber not with In the case of body fit, menses flow into the part being recessed from buttocks, and the menses are leaked along body.If body buttocks with Gap is produced between absorbent commodity, then particularly in the sanitary napkin of ight, menses along body to dorsal part after Side's transmission flowing, it is possible to just leaked behind absorbent commodity.

The sidepiece of the absorbent commodity of present embodiment absorbent cores 31 in posterior region S2 is by the buttocks pressure of left and right.Cause And, compared with the central power for putting on the width of absorbent cores 31 of posterior region, bigger power puts on posterior region Absorbent cores width sidepiece.If the sidepiece of absorbent cores is by the buttocks pressure of left and right, the absorber of posterior region Swelled by summit of front and rear slit to wearer side in the center of width.Thus, the width of posterior region S2 absorbent cores 31 The center in direction is easily configurable the depression between buttocks, more can configure absorbent cores 31 along the buttocks of wearer.As a result, It can prevent the body fluid such as menses from transmitting flowing to dorsal part rear along body and being leaked behind absorbent commodity.

In addition, being formed with the center of the width of posterior region S2 absorbent cores 31 along before thickness direction insertion Slit 42 afterwards, essentially without configuration absorbing material.Thus, the part of protuberance, particularly summit thickness it is thinning.If in addition, Absorbing material is configured with front and rear slit 42, then due to the rigidity of the absorbing material, absorbent cores 31 are easy to maintain flat state, Sometimes absorbent cores 31 are difficult to bend for basic point with front and rear slit 42.But, material is absorbed essentially without configuration in front and rear slit 42 Material, therefore, absorbent cores 31 are easy to maintain the state after bending for basic point with the front and rear slit 42.Thus, it is possible to by absorbability thing Product 1 are more snugly configured at the gap between the buttocks of wearer, can suppress the leakage at buttocks.

Fig. 5 is the sectional view for the state that absorbent commodity 1 is worn on wearer.Fig. 5 is with the Section A-A shown in Fig. 1 On the basis of, the sectional view of fore-and-aft direction L along body.In Figure 5, represent the line of body of wearer with double dot dash line table Show.In absorbent commodity 1, the deformation basic point for aiding in slit 43 to be formed along width extending is utilized.Posterior region S2's Absorbent cores 31 can with aid in slit 43 be basic point deform, it is easy to the body along in the section on the fore-and-aft direction L of body Circularity configuration.In addition, posterior region S2 absorbent cores 31 along body fore-and-aft direction laminating when, by making auxiliary narrow The width of seam 43 suitably changes, and change is produced along the distance between adjacent absorbent cores 31 of fore-and-aft direction across auxiliary slit 43 Change.It is therefore easy to configure absorbent cores 31 along the circularity of the body in the section on the fore-and-aft direction of body.

If posterior region S2 absorbent cores 31 are swelled with front and rear slit 42 for summit, the front and rear of next absorbent cores 31 is swelled Flexural rigidity increase on the L of direction.Thus, absorbent cores 31 are difficult to the fore-and-aft direction L configurations along body sometimes.But, set There is auxiliary slit 43, therefore, the rigidity for making absorbent cores 31 using the auxiliary slit 43 is reduced, and can promote the circularity along buttocks Absorbent cores 31 deformation.

If in addition, the lateral border 43E of auxiliary slit 43 reaches the lateral border 31E of absorbent cores 31, from equivalent to buttocks Gap center position into the region of the lateral border of absorbent cores 31, absorbent cores 31 flatly extend, absorbent cores 31 it is outer Lateral margin 31E can not cover sometimes the width of buttocks sidepiece (than buttocks summit by width outside part). But, the lateral border 43E of auxiliary slit 43 leans on the position of the inner side of width positioned at the lateral border 31E than absorbent cores 31, because This, absorbent cores 31 are separated not along fore-and-aft direction L.In addition, with aid in slit 43 for basic point deformation when, be configured to than auxiliary Slit 43 is helped to turn into fulcrum by the absorbent cores 31 of the position in the outside of width.Thus, absorbent cores 31 are along fore-and-aft direction L On body roundness deformation when, can be to be deformed along the continuous states of fore-and-aft direction L.Thus, posterior region S2 suction The cup-shaped that core 31 is easily made into the sidepiece for wrapping into buttocks is received, can effectively suppress the leakage from buttocks.

In addition, making posterior region S2 absorbent cores 31 or so individually deform using front and rear slit 42, in addition, after can making Side region S2 absorbent cores 31 or so individually follow the motion of body.For example, when wearer's walking, left and right leg is alternately transported It is dynamic.With the motion of the leg, buttocks also left and right alternating movement.If the width of such as posterior region S2 absorbent cores 31 is whole Regional integration it is mobile, then due to the alternating movement of leg, posterior region S2 absorbent cores 31 are overall to be moved left and right, sometimes buttocks The laminating sense at place is unstable.But, by making posterior region S2 absorbent cores 31 be separated by front and rear slit 42 along left and right, by In the alternating movement of leg, moved across each unilateral absorbent cores 31 of front and rear slit 42.Thus, it is possible to make across front and rear slit 42 Unilateral absorbent cores 31 follow body motion it is mobile, make opposite side absorbent cores 31 continue and body fit.Moreover, logical Crossing makes posterior region S2 absorbent cores sustainedly and stably be fitted with buttocks, and the buttocks and absorbent commodity that can suppress wearer rub Wipe, suppress by the deterioration of the caused wearing feeling of dawdling of skin.

Absorbent cores 31 can also be provided with along width W between discharge port contact area S1 and posterior region S2 prolongs The width slit 41 stretched.Width slit 41 is provided between discharge port contact area S1 and posterior region S2, therefore, it is possible to profit The deformation for suppressing absorbent cores 31 with width slit 41 is propagated to the fore-and-aft direction whole region of absorbent cores 31, contacts discharge port Region S1 absorbent cores 31 and posterior region S2 absorbent cores 31 are with different model deformations.

As described above, along the width W of absorbent cores 31 wearer body cross sectional shape near in-leg and Buttocks is different nearby.Discharge port contact area S1 absorbent cores 31 are depressed by the prominent of the labia majora of wearer, with to non-skin The mode swelled with respect to surface side is deformed.The deformation of discharge port contact area S1 absorbent cores 31 is rearward traveled to until width Region untill slit 41.But, the deformation of discharge port contact area S1 absorbent cores is separated by width slit 41, it is difficult to Posterior region S2 absorbent cores 31 are propagated.Posterior region S2 absorbent cores 31 are swelled to wearer side, are configured at the buttocks of left and right Between gap.Thus, in the buttocks of wearer, posterior region S2 absorbent cores 31 are configured along body, can suppress buttocks The leakage at place.

Auxiliary slit 43 can also at spaced intervals be provided with multiple along fore-and-aft direction L.The body of wearer it is front and rear The cross sectional shape in direction is the shape with circularity.By being formed with multiple auxiliary slits in posterior region S2 absorbent cores 31 43, posterior region S2 absorbent cores 31 are easy to deform for basic point along multiple auxiliary slits 43 separated fore-and-aft direction L.Cause And, circularity along body of posterior region S2 absorbent cores 31 and snugly configured with the gap of buttocks.

In addition, as shown in figure 3, in the absorbent cores 31 of present embodiment, front is provided with the 1st auxiliary slit 431, the The 2 auxiliary auxiliary auxiliary slits 434 of slit 433 and the 4th of slit the 432, the 3rd.2nd auxiliary slit 432 when lying on the back by buttocks by Press and be easy to maintain flat state.2nd auxiliary slit 432 separates the power pressed by buttocks, can make than the 2nd auxiliary slit Configuration is heaved between root of the 1st auxiliary slit 431 of 432 forward sides along buttocks and leg side.In addition, the 3rd auxiliary slit 433 are configured under the state (for example, standing posture) beyond prone position curve shape during equivalent to from the side of body The significantly position of the buttocks of inflection.Absorbent cores 31 are easy to deform for basic point with the 3rd auxiliary slit 433, can make absorbent cores 31 Along the partly configuration equivalent to the curve character significantly buttocks of inflection.

In addition, the 1st auxiliary auxiliary slit 434 of slit 431 and the 4th be configured at equivalent to by absorbent commodity with along width Spend the position of the folding line when the folding line in direction folds for basic point.Auxiliary slit 43 is configured with the position equivalent to folding line, because This, due to auxiliary slit 43, rigidity is relatively low, can stably bend absorbent commodity.In addition, being expanded by absorbent commodity When (use), it is difficult to the marking is bent caused by folding line, thus, it is easy to make absorbent commodity become with desired state Shape.Specifically, it is easy to the configuration with gap for making absorbent commodity fit between buttocks.Moreover, for example in absorbability The folding line of article is not provided with aiding in the structure of the slits such as slit, exists in the absorbent cores of posterior region and extends along width The stronger bending marking.Therefore, absorbent commodity is difficult to flexibly fit from the veutro of body towards dorsal part, due to body Gap between absorbent commodity, it is easy to produce leakage.On the other hand, by being provided with auxiliary in the folding line of absorbent commodity Slit 43, the bending marking is difficult to remain, and can make absorbent commodity and body fit at the position of auxiliary slit 43.

Auxiliary slit 43 can also extend with going on the outside of from front and rear slit 42 towards width to front side.For For posterior region S2 absorbent cores 31, the part than front side side rearward is pressed by buttocks, and therefore, power is applied from rear side towards front side Plus.Auxiliary slit 43 extends forwards with going on the outside of from front and rear slit 42 towards width, therefore, from rear direction The power of front side, which is utilized, aids in slit 43 to discharge and discharged to front side to the outside of width.Auxiliary slit 43 makes from rear court Discharge and be easy to along the force deformation to the power of front side, absorbent cores 31 is configured along buttocks.

In being overlapped in a thickness direction between the skin dough sheet 10 in region of front and rear slit 42 and non-skin dough sheet 20 Absorbing material can be configured without.Absorbing material is configured without in the region overlapping with front and rear slit 42, therefore, because front and rear narrow The thickness on the summit stitched 42 and swelled becomes thinner.Thus, it is possible to make absorbent commodity more fit in wearer buttocks it Between configuration with gap, the leakage at buttocks can be suppressed.

Front and rear slit 42 can also be not overlapping with adhesion area 60 in the thickness directiont.By making front and rear slit 42 in thickness Not overlapping with adhesion area on degree direction, the deformation of slit 42 is excessively hindered by underwear before and after suppressing, before absorbent cores 31 are easy to Slit 42 deforms for basic point afterwards.

Can also be that posterior region S2 is provided with the lateral border of the absorbent cores 31 relative to discharge port contact area S1 The buttocks fin 4 that 31E extends to the outside of width.By being provided with buttocks fin 4 in posterior region S2, when wearing not The sidepiece (the 2nd region and the 3rd region) of only absorbent cores 31 is depressed, and buttocks fin 4 is also depressed.Thus, absorbent cores 31 It is easy to further swell for summit with front and rear slit 42.Thus, it is easier to obtain along wearer buttocks configure absorbent cores 31, Suppress the effect of the leakage at buttocks.

The buttocks fin compression of the convex form protruding outside towards width W can also be provided with buttocks fin 4 Portion 83.By being provided with buttocks fin compression unit 83, buttocks fin 4 is easy to the roundness deformation along buttocks, can be to cover stern The mode of the circularity in portion configures buttocks fin 4.Thus, it is possible to further suppress the leakage at buttocks.

Discharge port contact area S1, which can also have, is located at the lateral border 31E than absorbent cores 31 by the inner side of width High portion 33 in position.High portion 33 in by being provided with discharge port contact area S1, in discharge port contact area S1 width Direction center (than absorbent cores 31 lateral border 31E by width inner side position), it is easy to make absorbent cores and wearer It is closely sealed.Thus, shown in the sectional view as shown in Fig. 4 (a), it is possible to increase discharge port contact area S1 adaptation.As a result, The stickiness of the stickiness of posterior region S2 absorbent commodity and discharge port contact area S1 absorbent commodity can be realized.

(3) other embodiment

The absorbent commodity of present embodiment is the sanitary napkin for the ight for being worn on underwear, but is used as other implementations Mode or it is worn on the absorption pads such as the diaper of diaper.

In addition, the grammes per square metre in the design of the width slit 41 of present embodiment, front and rear slit 42 and auxiliary slit 43 is 0, but width slit 41, front and rear slit 42 and auxiliary slit 43 can also be low lower than the grammes per square metre of the absorbent cores of surrounding of grammes per square metre Grammes per square metre region.In addition, auxiliary slit 43 extends along at least width, it both can be curve-like, can also overlook When be rhombus shape, can also be the upside-down triangle shape shape of the summit of rear side (have towards) when overlooking.

More than, the present invention is described in detail by using above-mentioned embodiment, but show to those skilled in the art And be clear to, the present invention is not limited to the embodiment being illustrated in this manual.The present invention is not departed from by weighing The spirit and scope of the invention that the record of sharp claim is determined can just be embodied as correcting and changing form.Thus, this explanation The record of book for illustrative purposes, does not have the meaning of any limitation to the present invention.

In addition, the full content for the Japanese Patent application the 2014-260773rd filed an application on December 24th, 2014 leads to Reference is crossed to be incorporated into this specification.

Industrial applicability

In accordance with the invention it is possible to provide a kind of absorbent commodity as follows：Paste the buttocks of absorbent cores and wearer Close, leakage can be suppressed.

Description of reference numerals

1st, absorbent commodity；3rd, flap；4th, buttocks fin；10th, skin dough sheet；11st, surface patch；12nd, lateral plate；20th, non-flesh Skin dough sheet；30th, absorber；31st, absorbent cores；31E, absorbent cores lateral border；311st, the 1st region；312nd, the 2nd region；313rd, the 3rd Region；32nd, core covering；41st, width slit；42nd, front and rear slit (the 1st pars convoluta)；43rd, auxiliary slit (the 2nd pars convoluta)；60th, bond Region；61st, the 1st main body adhesion area；62nd, the 2nd main body adhesion area；63rd, flap adhesion area；64th, buttocks fin bonding zone Domain；80th, compression unit；81st, discharge port compression unit；82nd, rear side compression unit；83rd, buttocks fin compression unit；L, fore-and-aft direction；T, thickness Spend direction；T1, skin are with respect to surface side；T2, non-skin are with respect to surface side；W, width；S1, discharge port contact area；S2, rear side Region；S3, front area.

Claims

1. a kind of absorbent commodity, it has：

Discharge port contact area, it is relative with the discharge port of wearer；

Posterior region, it is located at the position than the discharge port contact area rearward；

Absorbent cores, it is configured at the discharge port contact area and the posterior region, wherein,

The absorbent cores of side region are provided with the rear：Front and rear slit, it is configured at the center of the width of the absorbent cores, Extend along the fore-and-aft direction of the absorbent commodity；Slit is aided in, it is connected with the front and rear slit, and from described front and rear narrow The outside extension to width is stitched,

The lateral border of the auxiliary slit is located at the lateral border of the absorbent cores than the posterior region by width The position of side.

2. absorbent commodity according to claim 1, wherein,

The absorbent cores are provided between the discharge port contact area and the posterior region along the absorbent commodity Width extension width slit.

3. absorbent commodity according to claim 1 or 2, wherein,

The auxiliary slit is provided with multiple at spaced intervals along fore-and-aft direction.

4. according to absorbent commodity according to any one of claims 1 to 3, wherein,

The auxiliary slit extends with from the front and rear slit towards the outside of width to front side.

5. according to absorbent commodity according to any one of claims 1 to 4, wherein,

The absorbent commodity has：

Skin dough sheet, it is located at than the absorbent cores position with respect to surface side by skin；

Non- skin dough sheet, it is located at than the absorbent cores position with respect to surface side by non-skin,

It is configured without absorbing between the skin dough sheet and the non-skin dough sheet in the region overlapping with the front and rear slit Material.

6. according to absorbent commodity according to any one of claims 1 to 4, wherein,

The absorbent commodity possesses positioned at the non-skin dough sheet than the absorbent cores by non-skin with respect to the position of surface side,

It is provided with and is coated with the absorbent commodity is fixed on into underwear in the non-skin opposite face of the non-skin dough sheet Adhesive adhesion area,

Slit is not overlapping with the adhesion area in a thickness direction before and after described.

7. according to absorbent commodity according to any one of claims 1 to 6, wherein,

Side region is provided with lateral border relative to the absorbent cores of the discharge port contact area to width side in the rear To outside extension buttocks fin.

8. absorbent commodity according to claim 7, wherein,

The buttocks fin is provided with the buttocks fin compression unit of the convex form protruding outside towards width.

9. according to absorbent commodity according to any one of claims 1 to 8, wherein,

The discharge port contact area, which has, is located at the lateral border than the absorbent cores by the position of the inner side of width High portion,

The thickness of the lateral border of the absorbent cores described in the thickness ratio in the middle high portion at the contact area of discharge port is thick.

10. a kind of absorbent commodity, it has：

The absorbent cores of side region are provided with the rear：1st pars convoluta, is consisted of, the width of the absorbent cores of the posterior region The center in direction can be to wearer's lateral bend into convex；2nd pars convoluta, it constitutes the absorbent cores of the posterior region along thickness The deformation basic point of direction bending, and extend along width,

The lateral border of 2nd pars convoluta is located at inner side of the lateral border by width of the absorbent cores than the posterior region Position.