CN106456400A

CN106456400A - Absorbent article

Info

Publication number: CN106456400A
Application number: CN201680001500.4A
Authority: CN
Inventors: 野本贵志; 川上光
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2015-12-29
Filing date: 2016-10-13
Publication date: 2017-02-22
Anticipated expiration: 2036-10-13
Also published as: CN106456400B

Abstract

The present invention provides an absorbent article having excellent wearing feeling and high absorbency. The long main body portion (2) having the longitudinal direction and the width direction of the absorbent article (1) of the present invention is characterized in that a first region (A1), a second region (A2), a third region (A3), and a fourth region (A4), and the fourth region (A4) are arranged between the front end edge portion (5) in the longitudinal direction of the absorbent article (1) and the rear side edge portion (6); the fourth region (A4) includes an elongated region (E4) capable of extending in at least a length direction; and the second region (A2) includes a low elongation region (N2) or a non-elongated low elongation region (N2) having an elongation lower than the elongation of the elongated region (E4), and the low elongation region (N2) includes, in plan view, a plurality of bottom linear recesses (P, P ') portion extending along the longitudinal direction of the main body portion (2) to both sides of the central axis (CL) in the at least width direction and having a density higher than that of the other portions.

Description

Absorbent commodity

Technical field

The present invention relates to the absorbent commodity such as sanitary napkin, protective pad, incontinence pad.

Background technology

The absorbent commodities such as sanitary napkin, protective pad, incontinence pad are worn while the crotch part with wearer is contacted , therefore, in order to not enable a wearer to that indisposed sense, sense of discomfort is produced, have studied and be easy to the body shape for copying wearer and deform (i.e., stickiness is excellent) absorbent commodity.

As such absorbent commodity, for example, a kind of absorbent commodity is proposed in patent documentation 1, the absorbability Article has absorbed layer, and wherein, the absorbed layer has the extensibility region for being formed using the elongation of multiple slits or local.Root According to the absorbent commodity disclosed in the patent documentation 1, it is believed to improve the physical aptitude of absorbent commodity and wearer (i.e., stickiness).

Prior art literature

Patent documentation

Patent documentation 1：Japanese Unexamined Patent Application Publication 2007-523665 publication

Content of the invention

Problems to be solved by the invention

The absorbent commodity disclosed in patent documentation 1 not according to wearer action form configuring extensibility region, Arrange to rear side region of the extensibility region from the front side region of the length direction of absorbent commodity to length direction.So And, for the absorbent commodity for being dressed in wearer, if wearer carries out the actions such as walking, buttocks of wearer or so is alternately Ground motion, therefore in the rear side region of the length direction corresponding with the buttocks of wearer, power is along with absorbent commodity The direction reversed for axis of length direction apply, therefore, if the absorbent commodity for being dressed in wearer is special described above Sharp document 1 is configured with extensibility region like that, then the power of the torsional direction in the rear side region is transferred into and wearer Discharge port corresponding (or contact) region, thus, the region corresponding with the discharge port is possible to deform and make dress Person produces foreign body sensation, indisposed sense etc., damages wearing feeling.

If in addition, absorber is configured to by absorbent commodity like that using slit etc. as disclosed in Patent Document 1 Elongation, then as a rule, the absorbent properties of the absorber (especially, are configured to the suction of the part of elongation using slit etc. Receive performance) reduce.However, in the absorbent commodity disclosed in patent documentation 1, not concrete to the absorbent properties of absorber Account for, therefore, it is possible to due to wearer action form, wear time etc. and cannot fully play absorber Absorbent properties, produce the leakage of the discharged liquid for ejecting from wearer, return liquid (rewetting) etc..

Therefore, it is an object of the invention to provide the absorbability of a kind of wearing feeling of combined with superior and higher absorbent properties Article.

For solution to problem

The absorbent commodity of one form (form 1) of the present invention includes：The main part of lengthwise, which has length direction and width Degree direction；A pair of tab portion, which extends to the both sides of the length direction of the main part；The bonding of a pair worn the clothes thing fixation Portion, which is respectively arranged at a pair of tab portion, alongst extends, and wherein, the main part has：Before length direction Square side edge, which is located at the front side of wearer when absorbent commodity is worn；The rear side end edge portion of length direction, its The rear side of wearer is located at when wearing absorbent commodity；1st region, when overlooking, which is in the 1st imaginary line and the front Extend between side edge, the 1st imaginary line includes being located in the both ends on the length direction of the pair of bonding part A pair the 1st ends of nearer proximal side for the front side end edge portion；2nd region, its 2nd imaginary line with Extend between 1st imaginary line, the 2nd imaginary line includes the respective length direction central part of the pair of bonding part； 3rd region, which extends between the 3rd imaginary line and the 2nd imaginary line, and the 3rd imaginary line includes the pair of viscous A pair that is located relative to nearer proximal side for the rear side end edge portion in both ends on the length direction in conjunction portion 2nd end；And the 4th region, which extends between the 3rd imaginary line and the rear side end edge portion, the 4th region Including can be along the elongated region of at least elongated lengthwise, the 2nd region includes low elongated region, the low elongated region Extend the width central axial line for extending across the length direction along the main part when overlooking, and the low elongation zone It is non-elongate that domain has the percentage elongation lower than the percentage elongation of the elongated region or the low elongated region, and, described low Elongated region include overlook when the both sides of at least described width central axial line along the main part length direction Extension and multiple wire recesses of the high bottom of the density with density ratio other parts.

The absorbent commodity of the form 1 is configured to include as the 4th region in the region corresponding with the buttocks of wearer Elongated region, therefore, even if due to when wearer carries out the actions such as walking buttocks of wearer or so alternately move, power (below, sometimes referred to simply as " reversed along absorbent commodity with the direction reversed as axis by the length direction of absorbent commodity Direction ".) put on the rear side region of absorbent commodity, the elongated region also with the motion of wearer correspondingly not only edge The length direction deformation that can extend, also along the Direction distortion for being reversed as axis with the length direction, so as to Enough states for maintaining the skin face including the 4th region including the elongated region and wearer to be close to (i.e., are obtained in that excellent Wearing feeling), and the power of above-mentioned torsional direction is buffered using the deformation of the elongated region, it is difficult to wearer Corresponding (or contact) region (at least the 2nd region) transmission in discharge port.

And, the absorbent commodity of this form 1 is configured to as corresponding with the discharge port of wearer (or contact ) the 2nd region in region includes low elongated region (i.e., being difficult to the region for deforming), therefore, the action etc. in wearer is caused In fewer the 2nd region of impact, it is easy to which (i.e., the shape of the main part is difficult to become to maintain the shape of the main part Shape), the discharged liquid for ejecting from wearer can be absorbed steadily in the long term.

In addition, the described low elongated region of the absorbent commodity of form 1 is included at least described width central axial line Both sides extend along the length direction of the main part and the high bottom of density with density ratio other parts multiple lines Shape recess, therefore, even if the power in the direction that is reversed in the absorbent commodity of the action due to wearer puts on absorbability The rear side region of article or due to the groin of wearer power apply along the width of the main part such In the case of, the region corresponding with the discharge port of wearer the region especially as core (i.e., by the wire The region that recess is clipped) in, it is also possible to it is easier to maintain the shape of the main part using the rigidity of the harder wire recess of hardness Shape, absorbs more stably and more securely the discharged liquid for ejecting from wearer.And, in the area for being clipped by the wire recess In domain, the absorbent material in the main part is demarcated by the wire recess, it is difficult to moved from the region, therefore, it is possible to Absorbent properties that are good and playing consistently the main part (the especially region corresponding with the discharge port of wearer).

Above result, the absorbent commodity of this form 1 can take into account excellent wearing feeling and higher absorbent properties.

In addition, in another form (form 2) of the present invention, according to the absorbent commodity of the form 1, wherein, described 3rd region has：Low elongated region, which extends from the described low elongated region in the 2nd region；And elongated region, its phase Positioned at the both sides of the length direction of the main part, and the elongation from the 4th region for the low elongated region Region extends, and, the described low elongated region in the 3rd region has the flatness respectively from the 2nd region Multiple wire recesses that the plurality of wire recess in long region extends.

The described low elongated region of the absorbent commodity of the form 2 is present from the 2nd region across the 3rd region, The region for being difficult to deform of the main part can larger be guaranteed, therefore, it is possible to further stably and reliably absorb from The discharged liquid that wearer ejects.In addition, the main part is for the described low elongated region in the 3rd region The main part length direction both sides have from the 4th region extend the elongated region, therefore, even The actions such as the walking due to wearer and the power of above-mentioned torsional direction pass over from the rear side region of absorbent commodity or Person is in that case of due to the groin of wearer, power applies along the width of the main part, it is also possible to using institute State the deformation of the elongated region in the 3rd region to buffer these power.Thus, the master of the absorbent commodity of this form 2 (i.e., low elongated region is (especially by the plurality of wire for width middle body in 2nd region in body portion and the 3rd region The low elongated region that recess is clipped)) shape be easier to maintain, therefore, it is possible to absorb stably and reliably from wearing further The discharged liquid that the person of wearing ejects.

And, in another form (form 3) of the present invention, according to the absorbent commodity of the form 1 or 2, wherein, institute The low elongated region that the 1st region includes to extend is stated from the described low elongated region in the 2nd region.

The described low elongated region of the absorbent commodity of the form 3 is present from the 2nd region across the 1st region, Can guarantee that the shape of the main part is easy to (i.e., the being difficult to deform) region for maintaining further on a large scale, especially, The area of the front side of the length direction of the fewer, main part of impact that the action of wearer, elongation of underwear etc. are caused In domain, it is readily able to the shape of the main part is maintained, absorbs for a long time and more stably, more reliably and eject from wearer Discharged liquid.

And, in another form (form 4) of the present invention, according to the absorbability thing of any one of the form 1～3 Product, wherein, the 4th region includes the described low elongation zone between the rear side end edge portion and the elongated region Domain.

In the absorbent commodity of the form 4, in the 4th region, stretch with described positioned at the rear side end edge portion Region between long region is the fewer part of impact that elongation of the action of wearer, underwear etc. is caused, if such Region is configured with low elongated region, then be able to ensure that excellent intensity and absorbent properties as absorbent commodity.

And, in another form (form 5) of the present invention, according to the absorbability thing of any one of the form 1～4 Product, wherein, the main part includes：The surface patch of liquid permeability, which is located at the skin surface side of thickness direction；The liquid-impermeable back side Piece, which is located at the non-skin surface side of thickness direction；And absorber, which is located between the surface patch and the back sheet, and from institute State the 1st region and the 4th region is extended to, the absorber has the width in the elongated region along the main part Multiple slit portions that direction extends.

The absorber for constituting the main part of the absorbent commodity of the form 5 has along institute in the elongated region State multiple slit portions that the width of main part extends, therefore, when wearer carries out the actions such as walking, the elongation zone The motion (especially the left and right of buttocks is alternately moved) of domain and wearer, elongation of underwear etc. correspondingly, be not only easy to along The length direction deformation that can extend, is also easy to deform along above-mentioned torsional direction, can make to include that the elongated region exists Interior region more precision is more reliably close to well and with the skin face of wearer.

And, the most absorber for occupying the thickness of the main part of absorbent commodity has multiple slit portions, so as to Absorber can give excellent flexibility (especially, the softness on thickness direction and width to the main part certainly Property), excellent physical aptitude (i.e., stickiness) can be obtained further accordingly, as absorbent commodity.

And, in another form (form 6) of the present invention, according to the absorbent commodity of the form 5, wherein, described Multiple slit portions are configured to adjacent on the length direction of main part slit portion when overlooking from the point of view of the length direction Partially overlap each other.

In the main body when multiple slit portions in the elongated region of the absorbent commodity of the form 6 are configured to overlook On the length direction in portion, adjacent slit portion partially overlaps each other (in other words, the elongated region from the point of view of the length direction In multiple slit portions when being configured to overlook slit portion adjacent on the length direction of the main part from the length direction From the point of view of not exclusively overlap each other), therefore, the elongated region due to the action etc. of wearer along the length direction, When above-mentioned torsional direction deformation, the absorber be difficult to cause tear at slit portion and the absorber along length side To broken such situation.

In addition, in the absorber, the part that there is no the slit portion can play predetermined absorbent properties, because This, if multiple slit portions are configured in the elongated region as described above, can play the part of predetermined absorbent properties Be uniformly distributed in the elongated region, predetermined absorbent properties can be also played in the elongated region.

Thus, the absorbent commodity of this form 6 more reliably can play by the elongated region played above-mentioned Action effect, and can also play consistently the absorbent properties of the elongated region.

And, in another form (form 7) of the present invention, according to the absorbent commodity of the form 5 or 6, wherein, institute State absorber and there is no with the slit portion domain of the existence that there is the plurality of slit portion and slit portion in the elongated region The non-domain of the existence of slit portion, and, the non-domain of the existence of the slit portion has when overlooking：1st non-domain of the existence, which is from institute One end of width of absorber is stated towards other end side extension forwards；And the 2nd non-domain of the existence, which is with the described 1st Non- domain of the existence intersects, and extends from one end of the width of the absorber rearward towards the other end, the slit Portion's domain of the existence is present in the region for being surrounded by the 1st non-domain of the existence and the 2nd non-domain of the existence.

The absorbent commodity of the form 7 is by with absorber along above-mentioned specific two sides in the elongated region To the non-domain of the existence of slit portion for extending, fully guarantee intensity and the absorbent properties as absorber, at the same by have by The slit portion domain of the existence that the non-domain of the existence of the slit portion is surrounded, can make the elongation range of absorber longer, therefore, even In that case of action of wearer etc. is larger, it is also possible to maintain good absorbent properties and make the main part reliably with The skin face of wearer is close to.

And, in another form (form 8) of the present invention, according to the absorbability thing of any one of the form 5～7 Product, wherein, the surface patch is with the sag and swell that can extend in the elongated region, and the sag and swell is by along described A plurality of linear convex strip portions and be located at adjacent that width extends and arranged along the length direction at a predetermined interval Convex strip portions between and along the width extend a plurality of linear concave part formed.

The surface patch of the absorbent commodity of the form 8 is with the above-mentioned concavo-convex structure that can extend in the elongated region Make, therefore, the elongated region of the main part correspondingly can more easily be deformed with the motion of wearer, more reliably realize The state being close to including the skin face of the region including the elongated region and wearer (i.e., can improve absorption further The wearing feeling of property article), also, put on the power of the above-mentioned torsional direction of the rear side region of absorbent commodity be more difficult to Corresponding with the discharge port of wearer (or contact) region (at least the 2nd region) transmission.

And, in another form (form 9) of the present invention, according to the absorbability thing of any one of the form 5～8 Product, wherein, the fluxion structure that the back sheet extends with the length direction along the main part in the elongated region.

The liquid-impermeable back sheet of the absorbent commodity of the form 9 with fluxion structure in the elongated region, because This, can be guaranteed the anti-leakage of the discharged liquid for wearer and be utilized energy using liquid-impermeable such characteristic of back sheet The fluxion structure of enough elongations more reliably obtains the extensibility on the length direction of the elongated region.

If additionally, as described above, being formed with multiple slit portions in absorber, the discharged liquid for ejecting from wearer is easy to The back sheet is reached via the slit portion, but the absorbent commodity of this form 9 can make to reach the row of the back sheet Drainage is spread on the width along the groove portion for extending in the direction of the width of fluxion structure.Thus, even if from dress The discharged liquid that person ejects reaches back sheet via the slit portion, it is also possible to make the discharged liquid in the back sheet along Width spreads, while the large-scale site absorption discharged liquid from the non-skin surface side surface of the absorber.

And, if the back sheet has above-mentioned fluxion structure, can assign on the thickness direction of absorbent commodity Flexibility, resiliency etc. is given, therefore, it is possible to improve the wearing feeling of absorbent commodity further.

In addition, if back sheet is with fluxion structure in the elongated region, it is to extend to be easily recognized the region Part, therefore, it may have be easy to enable a wearer to, the absorbent commodity of identification this form 9 such as the person of needs is extensibility, flexibility Deng the such advantage of especially excellent product.

And, in another form (form 10) of the present invention, according to the absorbability thing of any one of the form 5～9 Product, wherein, construction of the back sheet at least described 2nd region with general planar.

The back sheet of the absorbent commodity of the form 10 has in the described low elongated region at least described 2nd region There are the construction (i.e., not having can be used as the key element of the construction of bending starting point) of general planar, therefore, the master in the 2nd region The shape in body portion can be easier to maintain, and more stably absorb the discharged liquid for ejecting from wearer.

The effect of invention

In accordance with the invention it is possible to provide the absorbent commodity of a kind of wearing feeling of combined with superior and higher absorbent properties.

Description of the drawings

Fig. 1 be in the state of the sanitary napkin 1 by one embodiment of the present invention is expanded from surface patch side edge Top view obtained from thickness direction observation.

Fig. 2 be in the state of the sanitary napkin 1 by one embodiment of the present invention is expanded from back sheet side edge Top view obtained from thickness direction observation.

Fig. 3 is the sanitary napkin 1 of one embodiment of the present invention along the width for extending on the length direction of Fig. 1 Degree direction central axial line C_LSection profile.

Fig. 4 is the section view in the section of the IV-IV line along Fig. 1 of the sanitary napkin 1 of one embodiment of the present invention Figure.

Fig. 5 is the state not extended of the absorber 22 used by the sanitary napkin 1 of one embodiment of the present invention The top view of (naturalness).

Fig. 6 is bowing for the elongation state of the absorber 22 used by the sanitary napkin 1 of one embodiment of the present invention View.

Fig. 7 be under the elongation state of the sanitary napkin 1 of one embodiment of the present invention along in the length side of Fig. 1 Upwardly extending width central axial line C_LSection profile.

Specific embodiment

Hereinafter, the absorbent commodity of the present invention is described in detail with reference to accompanying drawings preferred embodiment.Additionally, in this theory In bright book, unless otherwise specified, " will observe to expand from the upper side of vertical direction along the thickness direction of object The situation of object (for example, absorbent commodity, main part, absorber etc.) that is positioned on horizontal plane of state " be referred to as " bowing Depending on ".

For various directions for being used in this manual etc., unless otherwise specified, as described below.

In this manual, " width W " refers to that " direction that the length of the object of lengthwise during vertical view is shorter is (short Edge direction) ", " length direction L " refers to " the longer direction of the length of the object of lengthwise during vertical view ", and " thickness direction T " is Refer to " direction vertical with the object that the state to expand is positioned on horizontal plane ", these widths W, length direction L There is the orthogonal relation of difference with thickness direction T.

In addition, in this manual, " in wearer, absorbability thing will have been worn on the length direction L of absorbent commodity Become the side of relatively nearer proximal side when product for the abdominal part of wearer " it is referred to as " before absorbent commodity Square side ", by " with respect to wearer's when wearer has worn absorbent commodity on the length direction L of absorbent commodity Become the another of the amphi position side relatively far away from proximal side of relative close (i.e., for the back of wearer) for abdominal part Side " is referred to as " rear side of absorbent commodity ".

And, in this manual, will " the object (such as absorbent commodity, main part, absorber etc.) in lengthwise The width central axial line C for extending with respect to alongst L on width W_LFor relative close proximal side " claim For " inward side on width ", will be " with respect in the width on the width W of the object of the lengthwise Centre axis C_LFor amphi position side relatively far away from " be referred to as " outward side on width ".

Also, in this manual, unless otherwise specified, on the thickness direction T of absorbent commodity, " will wear When absorbent commodity for the skin face of wearer relative close proximal side " be referred to as " skin surface side ", " will wear Amphi position side when absorbent commodity for the skin face of wearer relatively far away from " is referred to as " non-skin surface side ".

Fig. 1 be in the state of the sanitary napkin 1 by one embodiment of the present invention is expanded from surface patch side edge Thickness direction T observation obtained from top view, Fig. 2 be in the state of expanding the sanitary napkin 1 from the back side Top view obtained from piece side along thickness direction T observation.Additionally, in fig. 1 and 2, the upper side of accompanying drawing is equivalent to absorption The front side of property article, the lower side of accompanying drawing is equivalent to the rear side of absorbent commodity.

In addition, Fig. 3 be the sanitary napkin 1, along on the length direction L of Fig. 1 extend width in Centre axis C_LSection profile, Fig. 4 be the sanitary napkin 1, along Fig. 1 IV-IV line section section view Figure.

As depicted in figs. 1 and 2, the sanitary napkin 1 of present embodiment has the outer shape edge overall when overlooking The shape of the longer lengthwise of length direction L, and, the outer rim tool of the side on the front of the middle body on the length direction L There is the shape that the outward side towards width W is projected in generally trapezoidal shape.Specifically, sanitary napkin 1 is when overlooking Including：The main part 2 of lengthwise, which has length direction and width, longer in the length directionl；A pair generally trapezoidal shape Tab portion 3,3 ', the position of the side on the front of its middle body on the length direction L of the main part 2 is to the main part The both sides of 2 length direction L extend；And the bonding part 4,4 ' of a pair worn the clothes thing fixation, which is respectively arranged at this pair Tab portion 3,3 ', alongst L extension.

As shown in Figure 3 and Figure 4, the main part 2 includes in the thickness directiont：The surface patch 21 of liquid permeability, which is located at flesh Skin surface side；Liquid-impermeable back sheet 23, which is located at non-skin surface side；Absorber 22, which is located at the surface patch 21 and the back side Between piece 23, and with the multiple slit portion S for extending along width W；And the worn the clothes thing of main part 2 is fixed to use and is glued Conjunction portion (not shown), its striated on the surface of the non-skin surface side of the back sheet 23 to extend along width W Configure etc. arbitrary form, and alongst L extends, the main part 2 is configured to absorb and keeps from wearer The discharged liquid for ejecting.On the other hand, as shown in Figure 1, Figure 2 and Figure 4, the tab portion 3,3 ' includes in the thickness directiont：Table Dough sheet 21, which is located at skin surface side, and extends out from the main part 2 along width W；Back sheet 23, which is located at non- Skin surface side, and extend out from the main part 2 along width W；And the bonding part 4,4 ' that worn the clothes thing is fixed, Which is configured at the surface of the non-skin surface side of the back sheet 23, and alongst L extends.

Additionally, for sanitary napkin 1, when dress, being configured at the non-of the main part 2 main part 2 is utilized Worn the clothes thing fixation bonding part (not shown) on the surface of skin surface side is fixed on the skin surface side of the worn the clothes thing of wearer Surface after, by a pair of tab portion 3,3 ' respectively to the non-skin surface side of the worn the clothes thing turn back and using being configured at each wing The bonding part 4,4 ' on the surface of the non-skin surface side in piece portion 3,3 ' is fixed on the surface of the non-skin surface side of the worn the clothes thing to be come Use, therefore, the surface of the non-skin surface side of the pair of tab portion 3,3 ' becomes when sanitary napkin 1 is worn and dress The relative face in the skin face of person.

As shown in figure 1, the main part 2 has when overlooking：The front side end edge portion 5 of length direction L, which is in dress life Manage with the front side (abdominal part side) for being located at wearer during sanitary towel 1；The rear side end edge portion 6 of length direction L, which is wearing physiology With the rear side (back side) for being located at wearer during sanitary towel 1；1st region A₁, which is in the 1st imaginary line L₁With the front side Extend between end edge portion 5, the 1st imaginary line L₁Length direction including each bonding part 4,4 ' of the pair of tab portion 3,3 ' A pair the 1st that are located relative to nearer proximal side for the front side end edge portion 5 in both ends 7,8,7 ', 8 ' on L End 7,7 '；2nd region A₂, which is in the 2nd imaginary line L₂With the 1st imaginary line L₁Between extend, the 2nd imaginary line L₂Including the pair of bonding part 4,4 ' respective length direction central parts；3rd region A₃, which is in the 3rd imaginary line L₃With described 2nd imaginary line L₂Between extend, the 3rd imaginary line L₃Including the two ends on the length direction L of the pair of bonding part 4,4 ' A pair the 2nd ends 8,8 ' for being located relative to nearer proximal side for the rear side end edge portion 6 in portion 7,8,7 ', 8 '； And the 4th region A₄, which is in the 3rd imaginary line L₃Extend between the rear side end edge portion 6.

Additionally, in the sanitary napkin 1 of present embodiment, as shown in figure 1, the front side ora terminalis of main part 2 Portion 5 and the rear side end edge portion 6 are respectively provided with the plan view shape of substantially arc-shaped, above-mentioned each region A₁～A₄Before described It is in that banding or rectangular shape extend between square side edge 5 and the rear side end edge portion 6.

Also, as shown in figure 1, the 4th region A₄Including elongated region E that can extend along at least length direction L₄, The 2nd region A₂It is configured to include low elongated region N₂, low elongated region N₂When overlooking across along the main part 2 The width central axial line C that length direction L extends_LGround extends, and low elongated region N₂Have than elongated region E₄ The low percentage elongation of percentage elongation or low elongated region N₂It is non-elongate.

And, as shown in Figure 1, Figure 2 and Figure 4, the 2nd region A₂Low elongated region N₂Include described when overlooking Width central axial line C_LBoth sides along the main part 2 length direction L extend and with density ratio other parts Two lines shape recess P, P of the high bottom of density '.

Additionally, in the present embodiment, as shown in FIG. 1 to 3, absorber 22 is configured to from the 1st region A₁Extend To the 4th region A₄.

Here, in this manual, " elongation " means according to Japanese JIS L 1913：2010 " 6.3 tensile strength and Method described in percentage elongation " along contrary predetermined both direction carried out stretching to object with the power of 5.0N when not More than 3% is extended (i.e., with elongation with respect to the length (100%) of naturalness (state before i.e., extending) on the premise of fracture Length afterwards becomes more than 103% mode and extends).

And, in this manual, " can extend " is referred to according to Japanese JIS L 1913：2010 " 6.3 tensile strength And percentage elongation " described in method along contrary predetermined both direction carried out stretching to object with the power of 5.0N when 3% can be extended with respect to the length (100%) of the object of naturalness (state before i.e., extending) on the premise of unbroken (i.e., extend in the way of the length after stretching becomes more than 103%) above.Thus, in this manual, (can be along extremely Few elongated lengthwise) " elongated region " mean according to Japanese JIS L 1913：2010 " 6.3 tensile strength and elongation When method described in rate " contrary both direction alongst has carried out stretching with the power of 5.0N to subject area More than 3% is extended with respect to the length (100%) in the region of naturalness (state before i.e., extending) on the premise of unbroken Region (i.e., becomes, by the length in the region after elongation, the region for extending in the way of in the of more than 103%).

In addition, in this manual, " percentage elongation " means according to Japanese JIS L 1913：2010 " 6.3 tensile strength And percentage elongation " described in method along contrary predetermined both direction stretching has been carried out to object with the power of 5.0N when, The length (length after i.e., extending) of the object after elongation is with respect to the length of naturalness (state before i.e., extending) Increment rate (%), specifically, can be obtained by following formula.

Percentage elongation (%)=[(length (mm) after the elongation of object)-(length of the naturalness of object (mm))]/(length (mm) of the naturalness of object) × 100

Also, in this manual, " non-elongate " means according to Japanese JIS L 1913：2010 " 6.3 tensile strength And percentage elongation " described in method along contrary predetermined both direction carried out stretching to object with the power of 5.0N when The length of the object on the premise of unbroken with respect to naturalness does not extend more than 3%.Thus, " non-elongate " is except including More than 3% not being extended just outside the situation of fracture with respect to the length of the object of naturalness, includes with respect to natural shape yet Situation (length i.e., extend after " minimum stretching less than 103% of length (100%) elongation of the object of state less than 3% Long ").

Additionally, in this manual, " low elongated region " refers to that percentage elongation is relative with respect to the percentage elongation of " elongated region " Relatively low region, the low elongated region includes non-elongate region in addition to the elongated region relatively low containing percentage elongation, also.

The sanitary napkin 1 of present embodiment is configured to, when wearing as the area corresponding with the buttocks of wearer The 4th region A in domain₄Including elongated region E₄, therefore, even if the buttockss due to wearer when wearer carries out the actions such as walking Portion or so alternately moves, length direction L of the power along sanitary napkin 1 with sanitary napkin 1 is reversed as axis Direction put in the rear side region of sanitary napkin 1, elongated region E₄Also with the motion of wearer correspondingly Not only along the length direction L deformation that can extend, also along the Direction distortion for being reversed as axis with length direction L, So as to maintain including elongated region E₄In the 4th interior region A₄The state being close to the skin face of wearer is (i.e., It is obtained in that excellent wearing feeling), also, the power of above-mentioned torsional direction utilizes elongated region E₄Deformation and delayed Punching, it is difficult to corresponding with the discharge port of wearer (or contact) region (at least the 2nd region A₂) transmission.

And, the sanitary napkin 1 of present embodiment is configured to, as corresponding with the discharge port of wearer (or Person's contact) the 2nd region A in region₂Including low elongated region N₂, therefore, the impact that the action etc. in wearer is caused is fewer The 2nd region A₂In, it is readily able to maintain the shape (i.e., the shape of the main part 2 is difficult to deform) of the main part 2, long Phase stably absorbs the discharged liquid such as the menses that eject from wearer.

In the absorbent commodity of the present invention, on the preferably length direction L of the above-mentioned elongated region of the main part Percentage elongation is more than 10%.

If the percentage elongation is state of more than 10%, the above-mentioned elongated region in being more easily deformed, therefore, it is possible to more Action effect that is good and more reliably playing above-mentioned elongated region, i.e., following action effect：Walking is carried out in wearer When action, the motion (especially the left and right of buttocks is alternately moved) of above-mentioned elongated region and wearer, the stretching of underwear Length etc. deforms also along above-mentioned torsional direction such that it is able to make correspondingly not only along the length direction L deformation that can extend It is close to the skin face of wearer including the 4th region more precision including the elongated region well.

If additionally, above-mentioned percentage elongation is higher, and for pasting the underwear (especially medicated underpants) of sanitary napkin Difference between percentage elongation diminishes, therefore, it may have can be easier to make motion and the underwear of sanitary napkin and wearer Motion linkage, i.e., the excellent such advantage of wearing feeling can be made.Especially, in the installation easness to medicated underpants, to medicated underpants Adapt to easness this respect, according to Japanese JIS L 1913：Method described in 2010 " 6.3 tensile strength and percentage elongation " Along contrary predetermined both direction stretching has been carried out to object with the power of 0.5N when, be preferably able to extend more than 3%.

In addition, the 2nd region A of the sanitary napkin 1 of present embodiment₂Low elongated region N₂Including described Width central axial line C_LBoth sides along the main part 2 length direction L extend and with density ratio other parts Two lines shape recess P, P of the high bottom of density ', therefore, even if carry out in the sanitary napkin of the action due to wearer 1 The power in the direction of torsion put on the rear side region of sanitary napkin 1 or due to the groin of wearer and power along In that case of the width W of the main part 2 applies, in the spy as the region corresponding with the discharge port of wearer Be not core region (i.e., by described two lines shape recess P, P ' clip region) in, it is also possible to harder using hardness Wire recess P, P ' rigidity be easier to maintain the shape of the main part 2, absorb more stably and more securely from dress The discharged liquid such as the menses that person ejects.And, by described two lines shape recess P, P ' in the region that clips, the main part 2 Interior absorbent material described later is by described two lines shape recess P, P ' demarcate, it is difficult to from the region movement, therefore, it is possible to good Absorbent properties that are good and playing consistently the main part 2 (the especially region corresponding with the discharge port of wearer).

In the present embodiment, described wire recess P, P ' can be appointed by using heating or the embossing of non-heated processing etc. The compression means of meaning are from the surface of the skin surface side of the surface patch 21 along thickness direction T to constituting the main part 2 The duplexer that surface patch 21, absorber 22 and back sheet 23 are overlapped successively is compressed and is formed.

In the present invention, the plan view shape of the wire recess is not particularly limited, except adopting above-mentioned enforcement Outside the shape of curve combination as mode, additionally it is possible to using linear, dotted line shape, zigzag, geometry shape, in advance The arbitrary shape such as fixed design shape.

In addition, in the above-described embodiment, described two lines shape recess P, P ' when overlooking in the width Centre axis C_LBoth sides along the length direction L of the main part 2 from the 1st region A₁Across the 4th region A₄Ground left and right is right Claim ground configuration, but in the present invention, as long as the shape of low elongated region for being clipped by above-mentioned wire recess, its configuration can be kept Form is just not particularly limited, and for example, the wire recess both can be in the width central axial line C_LBoth sides configuration There are total more than 3, it is also possible to along the length direction L of the main part 2 from the 1st region A₁Across the 4th region A₄Ground Configuration, or can also be only across the 2nd region A₂With the 3rd region A₃Ground configuration.If being configured with a plurality of such raising to lead The wire recess of the rigidity in body portion, then the shape of the main part more easily maintain.

Additionally, maintain for the shape of low elongated region and elongated region extensibility the viewpoint consideration such as guarantee, preferably The wire recess arrangement in along thickness direction T not the position Chong Die with the slit portion of absorber described later (i.e., not with elongation The position that region overlaps).

Hereinafter, the elongated region of the sanitary napkin 1 of present embodiment and low elongated region are described in further detail.

As shown in figure 1, the sanitary napkin 1 of present embodiment is configured to, the 3rd region A₃Have：From the described 2nd Region A₂Described low elongated region N₂To low elongated region N that the rear side of length direction L extends₃；And with respect to the flatness Long region N₃For positioned at the main part 2 length direction L both sides and from the 4th region A₄Elongated region E₄ To elongated region E that the front side of length direction L extends₃, and, the 3rd region A₃In described low elongated region N₃Have Respectively from the 2nd region A₂In described low elongated region N₂Wire recess P, the P ' prolong to the rear side of length direction L The multiple wire recesses that stretches.

Although this composition in the absorbent commodity of the present invention it is not necessary to composition, if low elongated region so from The 2nd region A₂Across the 3rd region A₃Ground exist, then can guarantee on a large scale further the main part 2 be difficult to become The region of shape, therefore, it is possible to absorb more stably and more reliably the discharged liquid such as the menses for ejecting from wearer.In addition, institute Main part 2 is stated with respect to the 3rd region A₃Low elongated region N₃For the main part 2 length direction L both sides Have from the 4th region A₄To elongated region E that the front side of length direction L extends₃, therefore, even if due to wearer's The actions such as walking and the power of above-mentioned torsional direction are passed over or due to wearing from the rear side region of sanitary napkin 1 In that case of the groin of the person of wearing and power apply along the width W of the main part 2, it is also possible to using the described 3rd Region A₃Elongated region E₃These power of deformation buffer.Thus, the sanitary napkin 1 with this composition is easy to tie up further Hold the 2nd region A of the main part 2₂With the 3rd region A₃In width middle body (i.e., low elongated region N₂、N₃(outstanding It is by described two lines shape recess P, P ' the low elongated region that clips)) shape, therefore, it is possible to more stably and reliably The discharged liquid such as the menses that absorption is ejected from wearer.

In addition, as shown in figure 1, the sanitary napkin 1 of present embodiment is configured to the 1st region A₁Including from described 2nd region A₂Described low elongated region N₂To low elongated region N that the front side of length direction L extends₁.

Although this composition in the absorbent commodity of the present invention it is not necessary to composition, if low elongated region so from The 2nd region A₂Across the 1st region A₁Ground is present, then can guarantee that the shape of the main part 2 is easy further on a large scale In the region for maintaining (i.e., being difficult to deform), therefore, especially, the impact ratio that action in wearer, elongation of underwear etc. are caused In the region of the front side of the length direction L of the less, main part 2, it is readily able to maintain the shape of the main part 2, Absorb for a long time and more stably, more reliably the discharged liquid such as the menses that eject from wearer.

And, the sanitary napkin 1 of present embodiment is configured to, the 4th region A₄Including positioned at the rear side End edge portion 6 and elongated region E₄Between low elongated region N₄.

Although the composition that this composition is nor is it necessary that in the absorbent commodity of the present invention, the 4th region A₄Interior, Positioned at the rear side end edge portion 6 and elongated region E₄Between region be that elongation of the action of wearer, underwear etc. is made Become affects fewer part, if being configured with low elongated region N in such region₄, then can be used as sanitary napkin (absorbent commodity) guarantees excellent intensity and absorbent properties.

In the present embodiment, shown as shown in Figure 1, Figure 3 and Figure 4, the 3rd region A₃With the 4th region A₄Each elongation Region E₃、E₄It is to be formed in the following way：Thickness in the various components as the composition main part 2 is most thick The presumptive area of the absorber 22 of component is arranged described in multiple slit portion S, the plurality of slit portion S along thickness direction T insertion inhales Acceptor 22 and along width W in substantially linear extend.Additionally, in the absorbent commodity of the present invention, as long as described stretch Long region is configured to extend along at least length direction L, is just not limited to such form, for example, it is also possible to be to constitute The presumptive area of the various components (such as absorber etc.) of the main part is formed by the material that can extend.

If as in the present embodiment, constituting the absorber 22 of main part 2 in the 3rd region A₃With the 4th region A₄ Each elongated region E₃、E₄In with along the main part 2 width W extend multiple slit portion S, then in wearer When carrying out the actions such as walking, the 3rd region A₃With the 4th region A₄Each elongated region E₃、E₄Motion with wearer (especially the left and right of buttocks is alternately moved), the elongation of underwear etc. correspondingly, become not only along the length direction L that can extend Shape, deforms also along above-mentioned torsional direction, can make to include elongated region E₃、E₄In interior region (in present embodiment In, it is the 3rd region A₃With the 4th region A₄) more precision is more reliably close to well and with the skin face of wearer.

And, the most absorber 22 of the thickness of the main part 2 by occupying sanitary napkin 1 is with such Multiple slit portion S, absorber 22 main part 2 can be given certainly excellent flexibility (especially, thickness direction T and Flexibility on width W), excellent physical aptitude can be obtained further as sanitary napkin and (i.e., fit Property).

Hereinafter, explanation is provided with the absorber 22 of above-mentioned multiple slit portion S in further detail referring to the drawings.

Fig. 5 is state (the natural shape not extended of the absorber 22 used by the sanitary napkin 1 of present embodiment State) top view, Fig. 6 is the top view of the elongation state of the absorber 22 used by sanitary napkin 1.In addition, Fig. 7 is this The width central authorities along extension on the length direction of Fig. 1 under the elongation state of the sanitary napkin 1 of embodiment Axis C_LSection profile.

In the present embodiment, absorber 22 is not especially limited in addition to being formed with above-mentioned multiple slit portion S System, can use known arbitrary absorber in the technical field of absorbent commodity.As such absorber, can enumerate Go out the absorbent material containing hygroscopicity fibre and/or superabsorbent polymer such as such as paper pulp by least transparent liquid such as 1 cotton paper The covering piece of property is (sometimes referred to as " core covering piece ".) around absorber etc..

Additionally, in the absorbent commodity of the present invention, the thickness of absorber is not particularly limited, can adopt and have contemplated that The species of absorbent commodity, purposes, wear the arbitrary thickness of the species of object etc..As such thickness, can enumerate The thickness for going out in the range of such as 0.1mm～10mm, but for viewpoints such as the slimming of absorbent commodity, flexibility, stickiness Consideration, the thickness in the range of preferably 0.3mm～3mm.

As shown in figure 5, the plurality of slit portion S of the absorber 22 in present embodiment is configured to, when overlooking, in institute State adjacent slit portion S on the length direction L of main part 2 partially overlap each other from the point of view of the length direction L (in other words, many Individual slit portion S is configured to, and during vertical view, adjacent slit portion S on the length direction L of the main part 2 is from the length direction L From the point of view of not exclusively overlap each other).If in elongated region E₃、E₄In multiple slit portion S so configured, then in physiology health Elongated region E in towel 1₃、E₄Action due to wearer etc. and alongst L, above-mentioned torsional direction are carried out When deformation, the absorber 22 be difficult to cause tear at slit portion S and the absorber 22 alongst L crushes this The situation of sample.In addition, in the absorber 22, the part that there is no the slit portion S can play predetermined absorbent properties, Therefore, if multiple slit portion S are in elongated region E₃、E₄In configure as described above, then can play predetermined absorbent properties Part in elongated region E₃、E₄In be uniformly distributed, in elongated region E₃、E₄In can also play predetermined absorbability Energy.

Thus, the sanitary napkin 1 with this composition more reliably can be played by elongated region E₃、E₄Risen The above-mentioned action effect for arriving, and, it is also possible to play consistently elongated region E₃、E₄Absorbent properties.

In addition, as shown in figure 5, the multiple slit portion S in the absorber 22 are configured to, in elongated region E₃、E₄In There are multiple slit portion domain of the existence A of the slit portion S that there is predetermined quantity_SAnd the slit portion that there is no slit portion S non-is deposited In region A_N, and, the non-domain of the existence A of the slit portion_NWhen overlooking by the 1st non-domain of the existence A_N1With the 2nd non-domain of the existence A_N2Formed, the 1st non-domain of the existence A_N1One end (one end in the left side Fig. 5) court from the width W of the absorber 22 To the other end (one end on the right side in Fig. 5), side (upper side in Fig. 5) extends forwards, the 2nd non-domain of the existence A_N2With institute State the 1st non-domain of the existence A_N1Intersect, and one end (one end in the left side Fig. 5) court of the width W from the absorber 22 To the other end (one end on the right side in Fig. 5), (lower side in Fig. 5) extends rearward, the slit portion domain of the existence A_SDeposit It is by the described 1st non-domain of the existence A_N1Domain of the existence A non-with the described 2nd_N2The region that surrounds or by the 1st non-presence Region A_N1, the 2nd non-domain of the existence A_N2And the width ora terminalis that the alongst L of the absorber 22 extends e₁、e₂The region for surrounding.

In elongated region E₃、E₄In, absorber 22 is by having the slit for extending along above-mentioned specific both direction The non-domain of the existence A in portion_N, in elongated region E₃、E₄In also fully can guarantee as absorber intensity and absorbent properties, While also by with by the non-domain of the existence A of the slit portion_NThe slit portion domain of the existence A for surrounding_S, as shown in Figure 6 and Figure 7, can Make absorber 22 impartial on the whole and alongst L extends with longer elongation range, therefore, even wearer In that case of action etc. is larger, it is also possible to maintain good absorbent properties, while making the non-elongate region of the main part 2 N₁～N₃Reliably it is close to the skin face of wearer further.

In the absorbent commodity of the present invention, as long as the elongation zone of the configuration of the plurality of slit portion main part Domain alongst can be formed to L elongation, and just be not limited to the form of above-mentioned embodiment, for example, to the plurality of For slit portion, the slit portion domain of the existence that there is the slit portion of predetermined quantity can be both respectively arranged at by being set as chessboard of go The region that surrounds of the non-domain of the existence of grid-like slit portion, it is also possible to be respectively arranged at alongst L or width W It is provided with the region non-domain of the existence of slit portion, being sandwiched between the non-domain of the existence of each slit portion of a plurality of striated.

And, the plurality of slit portion can also be configured in a predetermined pattern in the entirely elongated region, adopting this In the case of the configuration of sample, preferably multiple slit portions are configured in the total length of the width W of the absorber not It is arranged on straight line.Configure multiple slit portions if so, be then prevented from arranging multiple slit portions point-blank Work as the cutting line of pinprick line and the such situation of absorber rupture.

In addition, in the sanitary napkin 1 of present embodiment, as shown in fig. 5 or the like, slit portion S is formed as when overlooking The through hole of the substantially linear for extending along width W, but be not limited to so in the absorbent commodity of the present invention Form, slit portion can also be with arbitrary plan view shape in the range of the effect for not damaging the present invention.As such The plan view shape of slit portion, can include the such as shape such as arc-shaped, V-shaped, waveform, zigzag.

In the sanitary napkin 1 of present embodiment, along the slit portion S of the width W extension of the main part 2 Length (i.e., the width length of slit portion) as long as the elongated region of the main part 2 can be made along at least length side Extend to L, be just not particularly limited, but in the range of preferably 3mm～50mm, more preferably the scope of 5mm～15mm Interior.If the length of slit portion S is more than 3mm, can to make elongated region E of the main part 2₃、E₄Substantially along length side Extend to L, further, it is possible to make elongated region E of the main part 2₃、E₄It is easier to along being turned round with length direction L as axis The Direction distortion for turning, and then, the flexibility of appropriateness can be given to absorber 22 or even main part 2.If in addition, slit portion S Length is below 50mm, then when the absorber 22 in the width direction stress such as outward side of W, it is difficult to cause slit portion S to be open And such situation is ruptured, good durability can be guaranteed as absorbent commodity.

In the present invention, the means for forming multiple slit portions in absorber are not particularly limited, can be using arbitrary Cut-out means.For example, the absorber with multiple slit portions can be manufactured in the following way：Will be by arbitrary manufacture method The precursor of the absorber being manufactured into is utilized and is conveyed with transfer units such as conveyers while the cut-out roller of rotation will be arranged on Multiple amputation knife on side face are pressed against the upper surface of the precursor and make precursor described in the plurality of amputation knife insertion.Additionally, logical The configuration for crossing the amputation knife to cutting off roller is suitably adjusted, and with predetermined configuration, multiple slit portions can be formed at suction Acceptor.

Then, in the sanitary napkin 1 of present embodiment, the length to the main part 2 is described in further detail The both sides of degree direction L the extend, tab portion 3,3 ' of a pair generally trapezoidal shape.

As described above, the pair of tab portion 3,3 ' includes to extend out from the main part 2 along width W Surface patch 21 and the back sheet 23 for extending out along width W from the main part 2, as shown in Figure 1, Figure 2 and Figure 4, The surface (the i.e., surface of the non-skin surface side of back sheet 23) of the non-skin surface side of each tab portion 3,3 ' is provided with along length side The bonding part 4,4 ' that the worn the clothes thing of the rectangular shape for extending to L is fixed.

Also, in the sanitary napkin 1 of present embodiment, the 1st imaginary line L₁Comprising a pair of bonding part 4,4 ' Length direction L on both ends 7,8,7 ', 8 ' in, be located relative to the front side end edge portion 5 for nearer peri position A pair the 7,7 ', the 3rd imaginary line L of the 1st end of side₃Nearer near for the rear side end edge portion 6 comprising being located relative to A pair the 2nd ends 8,8 ' of position side, in the 1st imaginary line L₁With the 3rd imaginary line L₃Between extend the 2nd region A₂With the 3rd region A₃It is configured to the region of corresponding with the discharge port of wearer (or contact).

Thus, in the absorbent commodity of the present invention, a pair of bonding part in the tab portion is to consider absorbability thing The species, purposes of product, wear the species of object, each wing be configured to the arbitrary size shape of the stationarity etc. of worn the clothes thing The surface of the non-skin surface side in piece portion.In the case of the sanitary napkin 1 of above-mentioned embodiment, the tab portion 3,3 ' In a pair of bonding part 4,4 ' with there is such as length direction L length as 10mm～150mm in the range of, width W Length is the non-flesh that the form of the plan view shape of the rectangular shape in the range of 5mm～50mm is configured at each tab portion 3,3 ' The surface of skin surface side.

Additionally, in the absorbent commodity of the present invention, the binding agent for forming the bonding part that worn the clothes thing is fixed does not have Especially limit, the such as arbitrary binding agent containing styrenic etc. can be used.

In addition, in the sanitary napkin 1 of present embodiment, as shown in Figure 1 and Figure 4, the pair of tab portion 3,3 ' Having when overlooking includes the surface patch 21 for extending out from the main part 2 along width W and from the main part 2 Along back sheet 23, a pair generally trapezoidal shape the plan view shape that width W extends out, but the absorbability in the present invention In article, the form of the pair of tab portion is not limited to such form, and the pair of tab portion both can be for example to bow Depending on the shape (for example, rectangular shape, semiellipse shape, the predetermined design shape that are shaped as in addition to above-mentioned generally trapezoidal shape Deng) formed, alternatively, it is also possible to (i.e. and constitute surface patch and the back side of main part by the flat member different from the main part The different flat member of piece) formed.

Hereinafter, in the sanitary napkin 1 of present embodiment, explanation in further detail constitutes 2 He of main part The surface patch 21 of the pair of tab portion 3,3 ' and back sheet 23.

In the sanitary napkin 1 of present embodiment, shown as shown in Figure 1, Figure 3 and Figure 4, surface patch 21 is in physiology health The skin surface side of the thickness direction T of towel 1 is configured at the width central authorities of the length direction L extension along sanitary napkin 1 Axis C_LOn, by can be formed with the sheet element of the liquid permeability of the skin face directly contact of wearer.Constitute such surface patch 21 The sheet element of liquid permeability be not particularly limited, can rightly using for example using cellulose fibre, implement hydrophiling Arbitrary non-woven fabrics such as hot-wind nonwoven cloth that the thermoplastic resin fibre of process waits and formed etc..

Wherein, the sheet element of the surface patch of the absorbent commodity as the present invention is preferably used and is configured to and the main part The corresponding region of elongated region can be along the non-woven fabrics of at least length direction L elongation.As such non-woven fabrics, can arrange Enumerate non-woven fabrics that for example corresponding with the elongated region of main part region formed by the elastic fiber that can extend and Non-woven fabrics that the corresponding region of the elongated region of the main part is formed by the sag and swell that can extend described later etc..

By such non-woven fabrics are used for surface patch, the fortune of the elongated region of the main part more easily with wearer Move and correspondingly deform, therefore, it is possible to more reliably realize including the region including the elongated region (being in the present embodiment 3rd region A₃With the 4th region A₄) state be close to the skin face of wearer, also, put on the rear of absorbent commodity The power of the above-mentioned torsional direction of side region is more difficult to corresponding with the discharge port of wearer (or contact) that region is (extremely Few 2nd region) transmission.

In addition, in the absorbent commodity of the present invention, it is preferred that compared with back sheet described later, surface patch has more High extensibility (i.e., compared with back sheet, can extend which with less power).If surface patch has higher than back sheet Extensibility, then during contraction after elongation strain, surface patch is easier to shrink than back sheet, and therefore, absorbent commodity is easy to become Form the construction (construction of so-called cup-shaped) of the surface indentation of surface patch side, it is easy to the body shape of wearer, interior The shape of clothing (especially medicated underpants) is similar.

Additionally, in the absorbent commodity of the present invention, as long as the size shape of surface patch can be coated is configured in the table The entire surface on the skin surface side surface of the absorber of the non-skin surface side of dough sheet, is just not particularly limited, can be according to absorbability The size for wearing object, sex, purposes of article etc. adopt arbitrary size shape.And, for the thickness of surface patch, and It is not particularly limited, the thickness in the range of such as 0.001mm～5.0mm can be adopted, but for liquid permeability, resiliency, flesh The viewpoints such as skin sense of touch consider, in the range of preferably 0.01mm～3.0mm, the more preferably scope of 0.1mm～1.0mm Interior.

In the absorbent commodity of the present invention, the construction of surface patch is not particularly limited, for example, skin surface side and non-flesh The two sides of skin surface side all can be with general planar construction, the preferred elongated region phase with the main part of the surface patch Corresponding region has the sag and swell that can extend.As such sag and swell that can extend, can include and for example exist Include during vertical view the width W along surface patch extend and alongst L arrange at a predetermined interval a plurality of linear Convex strip portions and between adjacent convex strip portions and along surface patch width W extend a plurality of linear groove Portion, alongst the cross sectional shape of L become (i.e., the inside of convex strip portions becomes cavity) concavo-convex structure of substantially waveform shape Make.Here, the surface of skin surface side of the convex strip portions on the thickness direction T of the surface patch with the surface patch to The construction that skin surface side projects, flesh of the concave part on the thickness direction T of the surface patch with the surface patch The construction that the surface of skin surface side is recessed to non-skin surface side.

If by the non-woven fabrics with such sag and swell that can extend for absorbent commodity surface patch, described The elongated region of main part is more easily correspondingly deformed with the motion of wearer, therefore, it is possible to more reliably realize including institute It (is the 3rd region A in present embodiment elongated region to be stated in interior region₃With the 4th region A₄) be close to the skin face of wearer State (wearing feeling of absorbent commodity i.e., can be improved further), also, put on the rear side region of absorbent commodity The power of above-mentioned torsional direction be more difficult to corresponding with the discharge port of wearer (or contact) region the (at least the 2nd Region) transmission.

In addition, in the above-mentioned sag and swell that can extend, the height of convex strip portions (i.e., includes the top of convex strip portions Horizontal plane and the distance between the horizontal plane of bottom comprising concave part) be not particularly limited, can adopt such as 0.1mm～ Height in the range of 1.2mm, but consider for viewpoints such as extensibility, skin sense of touch, resiliencies, preferably 0.2mm～1.0mm In the range of, in the range of more preferably 0.4mm～0.8mm.

Additionally, the height of convex strip portions can use laser displacement gauge, and (for example Keyemce Co. Ltd. system high accuracy 2 ties up laser Displacement meter LJ-G series (model：LJ-G030 determine)) and in a non contact fashion as described below.To be cut into 100mm × The sample of the surface patch of the size of 100mm is placed on horizontal measure platform, for 5 different convex strip portions, using laser position Displacement of the meter measure from platform is determined is moved, the meansigma methodss of 5 measured values are set to the thickness (mm) of convex strip portions.Similarly, for 5 Individual different concave part, determines the displacement from platform is determined using laser displacement gauge, the meansigma methodss of 5 measured values is set to groove The thickness (mm) in portion.Thickness (mm) according to the convex strip portions calculates convex strip portions with the difference of the thickness (mm) of the concave part Highly (mm).

And, spacing (the i.e., top center (rib of two adjacent convex strip portions of the above-mentioned sag and swell that can extend Line) interval (mm) each other) it is not also specifically limited, the spacing in the range of such as 0.5mm～5.0mm can be adopted, for The viewpoints such as extensibility, skin sense of touch consider, in the range of preferably 1.0mm～4.0mm.

Additionally, the spacing of the sag and swell can be based on the top view photograph of the surface patch under no pressurized state or overhead view image It is determined as the top center (crest line) of adjacent two convex strip portions interval (mm) each other.

In the absorbent commodity of the present invention, the sag and swell that can extend that can be adopted as the construction of surface patch is not limited Due to above-mentioned form, the convex strip portions of sag and swell as escribed above can be set to and concave part is locally along removing when overlooking Direction beyond the width W of absorbent commodity (has for example inclined predetermined angle with respect to the width W of absorbent commodity Direction of degree etc.) extend form, at least partially make direction change (for example wavy, zigzag etc.) while the shape that extends Form that state, the width W discontinuous (i.e., intermittently) at least partially along absorbent commodity extend, at least local Make interval inconstant form, Japanese Patent Publication No. No. 5829349 publications, Japanese Patent Publication No. of adjacent two convex strip portions Such form for being formed by the groove portion with multiple convex portions (convex strip portions) and multiple recesses disclosed in No. 5829326 publications, Or by form of plural form combination in any in these forms etc..

By the direction of the so appropriate extension for setting convex strip portions and concave part, form, the main part can be stretched Form of the deformation in long region etc. is arbitrarily adjusted, and can realize the product corresponding with wearer various action model Product are designed.

The method for the sag and swell that can extend as described above being formed in surface patch is not particularly limited, and can adopt For example to fiber knit piece continuously blow gas (typically air) and Formation cross-section be shaped as the sag and swell of waveform method, Using vacuum-formed method, the method using gear extension, the thermal stretching using thermally extensible fiber and/or heat-shrinkable fibre The arbitrary method such as method of the thermal contraction of dimension.

In the sanitary napkin 1 of present embodiment, as shown in Figure 1 to 4, back sheet 23 is in sanitary napkin 1 Thickness direction T non-skin surface side be configured at along sanitary napkin 1 length direction L extend the width axis of centres Line C_LOn, formed by the liquid-impermeable sheet element of the leakage of the discharged liquid such as the menses for preventing from ejecting from wearer.Constitute this The liquid-impermeable sheet element of the back sheet 23 of sample is not particularly limited, can be rightly using for example with the poly- of breathability The resin films such as ethylene, polypropylene, resin film bonding non-woven fabrics duplexer etc..

Wherein, the sheet element of the back sheet of the absorbent commodity as the present invention is preferably used and is configured to and the main part The corresponding region of elongated region can be along the liquid-impermeable sheet element of at least length direction L elongation.As such Sheet element, can include for example corresponding with the elongated region of at least described main part region by the elastomeric material that can extend The sheet element of the formation region corresponding with the elongated region of the main part is formed by the fluxion structure that can extend described later Sheet element etc..

By such sheet element is used for back sheet, guarantees to be directed to using liquid-impermeable such characteristic of sheet element and wear The anti-leakage of the discharged liquid of the person of wearing, and stretching for the main part is made using the above-mentioned composition (fluxion structure etc.) that can extend Long region is more easily correspondingly deformed with the motion of wearer, therefore, it is possible to more reliably realize including the elongated region (it is the 3rd region A in present embodiment in interior region₃With the 4th region A₄) state be close to the skin face of wearer is (i.e., The wearing feeling of absorbent commodity is improved further can), and put on the above-mentioned torsion of the rear side region of absorbent commodity The power for turning direction is more difficult to corresponding with the discharge port of wearer (or contact) region (at least the 2nd region) transmission.

Additionally, in the absorbent commodity of the present invention, as long as the size shape of back sheet is prevented from discharging from wearer The leakage of the discharged liquid that comes, is just not particularly limited, can be according to the size for wearing object of absorbent commodity, sex, use Way etc. adopts arbitrary size shape.And, the thickness for back sheet is it is not also specifically limited, can be using for example Thickness in the range of 0.001mm～5.0mm, but consider for viewpoints such as liquid-impermeable, flexibility, breathability, preferably In the range of 0.003mm～3.0mm, in the range of more preferably 0.01mm～1.0mm.

In addition, in the absorbent commodity of the present invention, the construction of back sheet is not particularly limited, and for example, skin surface side Construction that all can be with general planar with the two sides of non-skin surface side, but it is preferred that the back sheet such as Fig. 2 and Fig. 3 institute The back sheet 23 of the sanitary napkin 1 of the present embodiment that shows has along institute like that in the elongated region of the main part State the fluxion structure that the length direction L of main part extends.

In the sanitary napkin 1 of present embodiment, as shown in Figures 2 and 3, the ripple of the back sheet 23 is formed at Construction B includes that when overlooking the width W along the back sheet 23 extends and alongst L is arranged at a predetermined interval A plurality of linear convex portion B₁And positioned at adjacent convex portion B₁Between and along back sheet 23 width W extend many Linear groove portion B of bar₂, alongst the cross sectional shape of L become substantially jagged shape.Here, the convex portion B₁? The surface of the skin surface side on the thickness direction T of the back sheet 23 with the back sheet 23 is prominent to skin surface side Construction, groove portion B₂The surface of the skin surface side on the thickness direction T of the back sheet 23 with the back sheet 23 to The construction of non-skin surface side depression.

If liquid-impermeable back sheet 23, can so with fluxion structure B in the elongated region of the main part 2 Guarantee the anti-leakage of discharged liquid for wearer while utilization can be stretched using liquid-impermeable such characteristic of back sheet 23 Extensibility on the length direction of the elongated region that long fluxion structure B more reliably obtains the main part 2, therefore, it is possible to It (is the 3rd region A in the present embodiment more reliably to realize including the region including the elongated region₃With the 4th region A₄) with The state (i.e., can reliably improve the wearing feeling of absorbent commodity further) that the skin face of wearer is close to, and apply The power for being added on the above-mentioned torsional direction of the rear side region of absorbent commodity is more difficult to corresponding with the discharge port of wearer (or contact) region (at least the 2nd region) transmission.

Additionally, as described above, in absorber 22 be formed with multiple slit portion S as the present embodiment in the case of, The discharged liquid such as the menses for generally ejecting from wearer are easy to reach back sheet 23 via slit portion S, if but overleaf 23 shape of piece Becoming to have fluxion structure B as described above, then can make the discharged liquid of the back sheet 23 to be reached along the fluxion structure B's Groove portion B for extending on width W₂Spread along width W.Thus, even if the discharged liquid warp for ejecting from wearer Back sheet 23 is reached by the slit portion S, it is also possible to so that the discharged liquid is expanded along width W on the back sheet 23 Dissipate, while the large-scale site absorption discharged liquid from the non-skin surface side surface of the absorber 22.

If in addition, the back sheet of absorbent commodity has fluxion structure as described above, can be in absorbent commodity Flexibility, resiliency etc. are given on thickness direction T, therefore, it is possible to improve the wearing feeling of the absorbent commodity further.

And, if back sheet is with fluxion structure in the elongated region of the main part, being easily recognized the region is The part that can extend, therefore, it may have be easy to enable a wearer to, the absorbent commodity of the identification present invention such as the person of needs is elongation The such advantage of the especially excellent product of property, stickiness, flexibility etc..

In above-mentioned fluxion structure, height (i.e., the horizontal plane at the top comprising convex portion and the bottom comprising groove portion of convex portion The distance between the horizontal plane in portion (most deep)) it is not particularly limited, can adopt in the range of such as 0.1mm～1.2mm Highly, but consider for viewpoints such as extensibility, resiliency, the diffusibilitys of liquid, in the range of preferably 0.2mm～1.0mm, enter One step is preferably in the range of 0.4mm～0.8mm.

Additionally, the height of the convex portion can be with the convex strip portions of the sag and swell that can extend in above-mentioned surface patch Height is similarly determined.

And, (i.e., the top center (crest line) of two adjacent convex portions is each other for spacing for above-mentioned fluxion structure Interval (mm)) it is not also specifically limited, can adopt such as 0.5mm～5.0mm in the range of spacing, but for extensibility, The viewpoints such as resiliency, the diffusibility of liquid consider, in the range of preferably 1.0mm～4.0mm.

Additionally, the spacing of the fluxion structure can be based on the top view photograph of the back sheet under no pressurized state or overhead view image It is determined as the top center (crest line) of adjacent two convex portion interval (mm) each other.

In the absorbent commodity of the present invention, can be adopted as the construction of back sheet fluxion structure be not limited to above-mentioned Form, can be set to the convex portion of fluxion structure as escribed above and groove portion when overlooking at least partially along except absorbability thing Direction beyond the width W of product (has for example inclined the direction of predetermined angular with respect to the width W of absorbent commodity Deng) form that extends, direction change (for example, wavy, zigzag etc.) is at least partially made while the form, at least that extends Be locally along form that the width W discontinuous (i.e., intermittently) of absorbent commodity extends, at least partially make adjacent The interval of two convex portions and inconstant form or the plural form in these form is arbitrarily combined and Form for becoming etc..

So suitably set by the direction of the extension to convex portion and groove portion, form, can be to stretching in the main part Form of the deformation in long region etc. is arbitrarily adjusted, and can realize the product corresponding with wearer various action model Product are designed.

Overleaf piece forms the method for fluxion structure as described above and is not particularly limited, and can adopt for example using true The arbitrary methods such as the method for empty shaping, the method for being extended using gear.

In addition, in the absorbent commodity of the present invention, the construction in the low elongated region of the back sheet is not especially Limit, but it is preferred that the back sheet 23 of the sanitary napkin 1 of back sheet present embodiment as shown in Figures 2 and 3 The construction of the equal general planar in two sides like that with skin surface side and non-skin surface side in the low elongated region of the main part.

If back sheet is in low elongated region (especially, the low elongation zone at least in the 2nd region of the main part Domain) in construction with general planar (i.e., not having can be used as the key element of the construction of bending starting point), then in the low elongated region Main part shape be further susceptible to maintain, therefore, it is possible to more stably absorb the discharged liquid for ejecting from wearer.

Additionally, in the sanitary napkin 1 of present embodiment, above-mentioned surface patch 21 and back sheet 23 are with by absorber 22 states being clipped in the middle are using bonding agent, heat-sealing, the arbitrarily engagement means such as ultrasonic bonding by the periphery end edge portion of each It is bonded to each other.

In the present invention, the composition of absorbent commodity is not limited to above-mentioned embodiment, for example, it is also possible on surface It is provided between piece and absorber and/or between absorber and back sheet making auxiliary piece of discharged liquid diffusion etc..

So, the absorbent commodity of the present invention is not restricted to above-mentioned embodiment, without departing from the purpose of the present invention, In the range of purport, can appropriately combined, change etc..

In addition, the present invention is in addition to being applied to the sanitary napkin of above-mentioned embodiment, additionally it is possible to suitable for example Such as various absorbent commodities such as protective pad, (light) incontinence pad.Additionally, in this manual, the ordinal number such as " the 1st ", " the 2nd " is used for distinguishing The item of the ordinal number is labeled with, is not meant to the order of each item, relative importance value, importance degree etc..

Description of reference numerals

1st, sanitary napkin (absorbent commodity)；2nd, main part；21st, surface patch；22nd, absorber；23rd, back sheet；3、 3 ', tab portion；4th, 4 ', bonding part；5th, front side end edge portion；6th, rear side end edge portion.

Claims

1. a kind of absorbent commodity, which includes：The main part of lengthwise, which has length direction and width；A pair of tab portion, Which extends to the both sides of the length direction of the main part；The bonding part that a pair worn the clothes thing is fixed, its be respectively arranged at this one To tab portion, alongst extend, wherein,

The main part has：

The front side end edge portion of length direction, which is located at the front side of wearer when absorbent commodity is worn；

The rear side end edge portion of length direction, which is located at the rear side of wearer when absorbent commodity is worn；

1st region, when overlooking, which extends between the 1st imaginary line and the front side end edge portion, the 1st imaginary line Nearer for the front side end edge portion including being located relative in the both ends on the length direction of the pair of bonding part Proximal side a pair the 1st ends；

2nd region, which extends between the 2nd imaginary line and the 1st imaginary line, and the 2nd imaginary line includes described one To the respective length direction central part of bonding part；

3rd region, which extends between the 3rd imaginary line and the 2nd imaginary line, and the 3rd imaginary line includes described one To in the both ends on the length direction of bonding part be located relative to the rear side end edge portion for nearer proximal side A pair the 2nd ends；And

4th region, which extends between the 3rd imaginary line and the rear side end edge portion,

4th region include can along the elongated region of at least elongated lengthwise,

2nd region includes low elongated region, and the low elongated region is when overlooking across the length direction along the main part The width central axial line ground of extension extends, and the low elongated region has lower than the percentage elongation of the elongated region stretching Long rate or the low elongated region are non-elongate,

And, the low elongated region is included when overlooking in the both sides of at least described width central axial line along the master The length direction extension in body portion and multiple wire recesses of the high bottom of the density with density ratio other parts.

2. absorbent commodity according to claim 1, wherein,

3rd region has：Low elongated region, which extends from the described low elongated region in the 2nd region；And elongation zone Domain, which is positioned at the both sides of the length direction of the main part, and the institute from the 4th region for the low elongated region Elongated region extension is stated,

And, the described low elongated region in the 3rd region has described low elongated region respectively from the 2nd region The plurality of wire recess extend multiple wire recesses.

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

1st region includes the low elongated region for extending from the described low elongated region in the 2nd region.

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

4th region includes the described low elongated region between the rear side end edge portion and the elongated region.

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

The main part includes：The surface patch of liquid permeability, which is located at the skin surface side of thickness direction；Liquid-impermeable back sheet, Which is located at the non-skin surface side of thickness direction；And absorber, which is located between the surface patch and the back sheet, and from described 1 region extends to the 4th region, and the absorber has the width in the elongated region along the main part The multiple slit portions for extending.

6. absorbent commodity according to claim 5, wherein,

The plurality of slit portion is configured to adjacent on the length direction of main part slit portion when overlooking from the length Partially overlap each other from the point of view of direction.

7. the absorbent commodity according to claim 5 or 6, wherein,

The absorber with the slit portion domain of the existence that there is the plurality of slit portion and is not present in the elongated region The non-domain of the existence of the slit portion of slit portion, and, the non-domain of the existence of the slit portion has when overlooking：1st non-domain of the existence, From one end of the width of the absorber, towards the other end, side extends forwards for which；And the 2nd non-domain of the existence, itself and institute State the 1st non-domain of the existence to intersect, and extend towards the other end rearward from one end of the width of the absorber, described Slit portion domain of the existence is present in the region for being surrounded by the 1st non-domain of the existence and the 2nd non-domain of the existence.

8. the absorbent commodity according to any one of claim 5～7, wherein,

The surface patch is with the sag and swell that can extend in the elongated region, and the sag and swell is by along the width Direction extends and a plurality of linear convex strip portions that arranged along the length direction at a predetermined interval and positioned at adjacent convex The a plurality of linear concave part for extending between bar portion and along the width is formed.

9. the absorbent commodity according to any one of claim 5～8, wherein,

The fluxion structure that the back sheet extends with the length direction along the main part in the elongated region.

10. the absorbent commodity according to any one of claim 5～9, wherein,

Construction of the back sheet at least described 2nd region with general planar.