CN110167498A

CN110167498A - Absorbent commodity

Info

Publication number: CN110167498A
Application number: CN201780081051.3A
Authority: CN
Inventors: 工藤淳; 谷口健太; 前谷望
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2016-12-28
Filing date: 2017-11-14
Publication date: 2019-08-23
Anticipated expiration: 2037-11-14
Also published as: JP6346262B1; KR102522817B1; CN110167498B; TW201827025A; JP2018102827A; WO2018123305A1; KR20190101423A

Abstract

A kind of absorbent commodity that can preferably cooperate with the discharge port of wearer is provided.A kind of absorbent commodity (1), with orthogonal longitudinal direction, width and thickness direction.The absorbent commodity includes absorber (10) comprising liquidabsorbing fibres；With non-skin lateral plate (30), the non-skin side of the absorber (10) is arranged on the thickness direction.Longitudinally-oriented recess (15) is formed in non-skin side in the lateral center region of absorber (10).Recess portion (15) has in the side wall portion 15L of cross side and in another sidewall portion 15R of the other side.Recess portion (15) is formed so that: when the transverse central area of absorber (10) is bent so that non-skin side surface 50 degree of angles of formation of absorbent commodity (1), side wall portion and another sidewall portion do not apply pressing force to each other.

Description

Absorbent commodity

Technical field

The present invention relates to a kind of absorbent commodities.

Background technique

Sanitary napkin is known as absorbing the absorbent commodity of the draining off fluid such as menstrual blood.As this physiology With an example of sanitary napkin, patent document 1 discloses the sanitary napkin 10 including shaped wire 20, and the shaped wire has Central vertical line in absorbent core 12 is set, and when absorbent core 12 when being influenced by transverse compression along shaped wire 20 are bent upwards, to improve the cooperation with the body of wearer.

List of documents

Patent document

Patent document 1: Japan is in careful patent application publication number 2002-538849

Summary of the invention

Technical problem

However, sanitary napkin 1 in the patent document 1 is put on and absorbent core 12 is by a lateral direction When the influence of compression, lower face side (non-skin-surface side) substantially forms 50 degree of angle.At this point, if absorbent core 12 Lower face side (non-skin-surface side) contacts with one another, then being bent upwards for absorbent core 12 is hindered, and exists The risk deteriorated during use with the cooperation of the body of wearer.

The present invention is realized in view of general issues such as such as above problems, and aspect of the invention is to provide one kind and can be realized The absorbent commodity more favorably cooperated in the excretion source relative to wearer.

Issue-resolution

Main aspect for realizing above-mentioned aspect of the invention is a kind of with orthogonal longitudinal direction, width side To the absorbent commodity with thickness direction, the absorbent commodity includes: absorber, with liquidabsorbing fibres；With it is non- Skin side sheet material is arranged in the non-skin side of the absorber on the thickness direction, and the absorber is in the absorption There is recess portion, the recess portion is formed in non-skin side and extends in the longitudinal direction, described in the lateral center region of body Recess portion has the side wall portion of side in the width direction and another side wall of the other side in the width direction Portion, the recess configuration is at making: when the lateral center region bends of the absorber are so that the absorbent commodity The part of non-skin side surface when forming 50 degree of angle, the side wall portion and another sidewall portion do not apply to each other Pressing force.

The description of this specification is read by reference to attached drawing, the feature of the invention in addition to above will be apparent.

Advantageous effects of the invention

According to the present invention, recess configuration is at making: when in lateral center region bends so that the non-skin of absorbent commodity When normally putting on absorbent commodity in the state of the angle of substantially 50 degree of part formation of skin side surface, side wall portion and the other side Wall portion is prevented from applying pressing force to each other.This recess portion to be likely to inhibit to be used at recess portion to skin absorber Side deformation outstanding generates the risk hindered, and absorber is allowed more advantageously to cooperate relative to the excretion source of wearer.

Detailed description of the invention

Fig. 1 is the plan view such as the sanitary napkin 1 seen in the skin side in a thickness direction.

Fig. 2 is the plan view such as the sanitary napkin 1 seen in the non-skin side in a thickness direction.

Fig. 3 is along schematic cross sectional views seen in the arrow A-A in Fig. 1.

Fig. 4 is the plan view such as the absorber 10 of the sanitary napkin 1 seen in the non-skin side in a thickness direction.

Fig. 5 A is the schematic cross sectional views of a part as indicated by the arrow B-B of Fig. 1, wherein the dotted compression unit of absorber ED10 has been formed in uncompressed absorber 10.Fig. 5 B is schematic cross sectional views, and center dant 15 has been formed on the suction in Fig. 5 A In acceptor 10.Fig. 5 C is schematic cross sectional views, and wherein top-sheet 20 has covered on absorber 10 in figure 5B.Fig. 5 D is to show Meaning property cross-sectional view, wherein the dotted compression unit ED20 of main body has been formed in the sanitary napkin 1 in Fig. 5 C.

Fig. 6 is the schematic enlarged view of a pair of of roller portion 50.

Fig. 7 is the figure for illustrating the use aspect of sanitary napkin 1.

Fig. 8 shows the schematic cross sectional views of the recess portion 15 in Fig. 5 D.Fig. 8 A is schematically cuing open for the recess portion 15 in Fig. 5 D View.Fig. 8 B is the enlarged view of the part Z in Fig. 8 A.

Fig. 9 is to illustrate the figure of the recess portion 15 of sanitary napkin 1 before the use.

Figure 10 is the figure for illustrating the recess portion 15 of sanitary napkin 1 in the state of the shape extension along jig 70.

Figure 11 shows the variation example of a pair of of roller portion 50.

Specific embodiment

Description and attached drawing by this specification, at least following item will be apparent.

A kind of absorbent commodity with orthogonal longitudinal direction, width and thickness direction,

The absorbent commodity includes:

Absorber, with liquidabsorbing fibres；With

Non-skin lateral plate material is arranged in the non-skin side of the absorber on the thickness direction,

The absorber has recess portion in the lateral center region of the absorber,

The recess portion is formed in non-skin side and extends in the longitudinal direction,

The side wall portion and in the width direction another that the recess portion has side in the width direction Another sidewall portion of side,

The recess configuration is at making: when the lateral center region bends of the absorber are so that the absorbability When the part of the non-skin side surface of article forms 50 degree of angle, the side wall portion and another sidewall portion are not to each other Apply pressing force.

For this absorbent commodity, recess configuration is at making: when in lateral center region bends so that absorbability object When normally putting on absorbent commodity in the state of the angle of substantially 50 degree of part formation of the non-skin side surface of product, side wall portion It is prevented from applying pressing force to each other with another sidewall portion.This recess portion to be likely to inhibit to absorber in recess portion Place generates the risk hindered to skin side deformation outstanding, and absorber is allowed more advantageously to match relative to the excretion source of wearer It closes.

In this absorbent commodity, it is preferred that

About most deep deepest part in the recess portion, and in the width direction on the outside with the recess portion phase Adjacent exterior portion,

At the position Chong Die with the deepest part in the width direction of the absorber in the thickness side Upward center relative at the position Chong Die with the exterior portion in the width direction of the absorber in institute The center stated on thickness direction is located at skin side.

According to this absorbent commodity, absorber is easier bending during use to swell to skin side, it is easier to real Now relative to the good fit of excretion source, and excreta is likely to faster be absorbed.

In this absorbent commodity, it is preferred that

Most deep deepest part extends along the width direction in the recess portion, and

The lateral length of the deepest part is greater than the depth of the deepest part.

According to this absorbent commodity, the absorbability object of the depth of deepest part is less than with the lateral length of wherein deepest part The case where product, is compared, when absorbent commodity is bent so that the angle of 50 degree of part formation of non-skin side surface, it is likely that It is easier to prevent side wall portion and another sidewall portion from applying pressing force to each other.

In this absorbent commodity, it is preferred that

When the absorber the lateral center region bends so that the non-skin side surface the part shape When at 50 degree of angle,

The lateral shortest distance between the side wall portion and another sidewall portion is less than the transverse direction of the deepest part Length.

According to this absorbent commodity, the lateral shortest distance between side wall portion and another sidewall portion is less than absorbent commodity In deepest part lateral length.In this case, even if when absorbent commodity is bent so that the non-of absorbent commodity When the part of skin-side surface forms 50 degree of angle, be also likely to inhibition side wall portion and another sidewall portion apply to each other by The risk of pressure.

In this absorbent commodity, it is preferred that

It is described transverse direction the shortest distance be the side wall portion side closest approach and another sidewall portion the other side most The distance between near point, and

From the deepest part to the distance of the side closest approach and in the thickness direction on the thickness direction On be less than the transverse direction of the deepest part to any of the distance of the other side closest approach from the deepest part Length.

According to this absorbent commodity, and wherein in a thickness direction at a distance from from deepest part to side closest approach or in thickness The case where being less than the lateral length of deepest part to the distance of other side closest approach from deepest part on degree direction is compared, it is likely that It further suppresses side wall portion and another sidewall portion applies the risk of pressing force to each other.

In this absorbent commodity, it is preferred that

The lateral length of the deepest part is greater than the thickness in outer side section of the absorber, the exterior portion It is adjacent with the recess portion on the outside in the width direction.

According to this absorbent commodity, the thickness in outer side section of absorber is less than with the lateral length of wherein deepest part The case where spending is compared, it is likely that further suppresses side wall portion and another sidewall portion applies the risk of pressing force to each other.

In this absorbent commodity, it is preferred that

The lateral length of the deepest part is less than twice of the thickness in the exterior portion of the absorber.

According to this absorbent commodity, the lateral length of deepest part is bigger, easier inhibition side wall portion and another side wall Portion applies the risk of pressing force to each other.But the lateral length of deepest part is bigger, recess portion is had compared with exterior portion Absorption and store excreta ability reduce risk will be higher.In consideration of it, the lateral length of deepest part is set smaller than Twice of the thickness in outer side section of absorber, thus maintain can absorbed excreta amount, while also inhibit side Wall portion and another sidewall portion apply the risk of pressing force to each other.

In this absorbent commodity, it is preferred that

About on the thickness direction in the skin side portion that skin side is adjacent with the recess portion,

In the fibre density of the liquidabsorbing fibres of the lateral position for the deepest part that the recess portion is arranged

It is higher than

Including the lateral position adjacent portion in the skin side portion and with the setting deepest part Fibre density.

According to this absorbent commodity, when the skin of skin side portion and wearer on deepest part contacts, no Correspond only to the part with the more deepest part of high microsteping density, and the adjacent part with lower fibre density can with wear The skin of wearer contacts.This makes the surface texturisation for being likely to be modified to wearer.

In this absorbent commodity, it is preferred that

The skin surface side of the absorber is arranged in a pair of of the skin side pocket extended in the longitudinal direction,

The pair of skin side pocket is separately positioned on the outside of deepest part, the most deep in the width direction It is point most deep in the recess portion, and

The deepest part is deeper than the skin side pocket.

According to this absorbent commodity, due to the recess portion being formed in non-skin contact side surface, when absorber deform so as to When swelling to skin side, the region between skin side pocket is likely to contact with the skin of wearer.At this point, and wearer The region that is contacted of skin than more flat in the case where being not provided with the pair of skin side pocket.This to be likely to Improve surface texturisation.

In this absorbent commodity, it is preferred that

The absorbent commodity further comprises skin side sheet material, and the skin side sheet material is arranged on the thickness direction In the skin side of the absorber,

The absorber and the skin side sheet material are bonded to each other using adhesive, and

The deepest part of the skin side pocket is not bonded to each other with the skin side sheet material.

According to this absorbent commodity, a pair of of skin side pocket is provided, so that being likely to inhibit the resistance of skin side sheet material Hinder the risk for being used to form the deformation of the deepest part extended along width direction.This makes it easier to be formed in the direction of the width The deepest part of extension, and to be likely to improve quality.

In this absorbent commodity, it is preferred that

The absorber and the non-skin lateral plate material are bonded by the use of adhesive,

Described adhesive is not coated by most deep deepest part in the recess portion,

The non-skin lateral plate material is adhered to the lateral ends of the recess portion, and

Described adhesive is coated to the described positioned at the recess portion in the width direction of the non-skin lateral plate material A part of tip inside.

According to this absorbent commodity, non-skin lateral plate material does not adhere to deepest part, so that being likely to inhibit skin Risk of the protuberance of side surface by the obstruction of non-skin lateral plate material.Moreover, recess portion is located at before using absorbent commodity Part on the inside of lateral ends does not adhere to non-skin lateral plate material.But when using absorbent commodity, absorbent main body along Recess portion is swelled to skin side, and non-skin lateral plate material is also similarly swelled to skin side.Which increase recess portions and non-skin side The size in the region that sheet material is contacted.Due to being coated to the adhesive of non-skin lateral plate material, being located at for non-skin lateral plate material is recessed Part on the inside of the lateral ends in portion becomes recently to be adhered to recess portion so that be easier by absorbent commodity maintain to The shape of skin side protuberance.

In this absorbent commodity, it is preferred that

The non-skin lateral plate material is adhered to a part of the recess portion being located on the inside of the lateral ends, and

The non-skin lateral plate material adheres to the deepest part.

According to this absorbent commodity, wherein absorber lateral center region bends so that absorbent commodity non-skin The part of skin side surface is formed in the state of 50 degree of angle, the portion on the inside of the lateral ends of recess portion of non-skin side surface Divide becomes recently to be adhered to recess portion by being coated to the adhesive of non-skin lateral plate material, so that being easier absorbability object Product maintain the shape swelled to skin side.

===first embodiment===

Sanitary napkin 1 (hereinafter referred to as " sanitary napkin 1 ") is described below as the absorption according to the present embodiment The example of property article.It should be noted that although sanitary napkin be described as being described below in absorbent commodity example, this The absorbent commodity of embodiment also covers so-called panty liner etc., and is not limited to sanitary napkin.

Fig. 1 is the plan view such as the sanitary napkin 1 seen in the skin side in a thickness direction.Fig. 2 is such as in thickness Spend the plan view of the sanitary napkin 1 seen in the non-skin side on direction.Fig. 3 is along schematic seen in the arrow A-A in Fig. 1 Cross-sectional view.Moreover, in the following description, " longitudinal direction " is the side along the longitudinally of the sanitary napkin 1 in Product Status To, " width direction " is direction orthogonal with longitudinal direction and along the extension of the transverse direction of the sanitary napkin 1 in Product Status, And " thickness direction " is the direction orthogonal with longitudinal direction and width direction.Longitudinal direction has to be distinguished when using sanitary napkin 1 In " front side " and " rear side " of the back side of the veutro and wearer of wearer.Thickness direction have when using sanitary napkin 1 with wear " skin side " (also referred to as " upside ") for the side that the skin (upside in Fig. 3) of wearer is contacted, and in opposite side (Fig. 3 In downside) on " non-skin side " (also referred to as " downside ").Moreover, the X-X line in figure is center in the direction of the width Line.

Sanitary napkin 1 is the sheet component in plan view with vertical elongated shape.Sanitary napkin 1 includes that liquid can seep Saturating top-sheet (skin side sheet material) 20, the absorber 10 of fluid permeable and impermeable back sheet material (the non-skin of liquid Skin lateral plate material) 30, they are covered each other with this order on thickness direction (referring to Fig. 3) from skin side to non-skin side.This A little components 20,10 and 30 are respectively joined to component adjacent thereto in a thickness direction by using adhesive HMA, described viscous Mixture is hot-melt adhesive etc..It should be noted that adhesive HMA is coated in the skin table of absorber 10 with desired coating pattern Above the whole region of surface side and non-skin-surface side, and coats pattern and can be selected from such as Ω pattern, spiral pattern and bar graph Case etc. coats pattern.

Top-sheet 20 and back sheet material 30 have same level shape, and its plane sizes is greater than the plane of absorber 10 Size.As illustrated in fig. 1 and 2, the peripheral edge portion 20e and 30e of two sheets 20 and 30 is engaged with each other by bonding or welding, And therefore absorber 10 is maintained between two sheets 20 and 30.Moreover, top-sheet 20 and back sheet material 30 are approximately longitudinally Central portion extends outwardly in the direction of the width, therefore is formed when sanitary napkin 1 needs to be placed on underwear (not shown) and is fixed to interior The alar part 20w and 30w of fixed part used when clothing.

Absorber 10 has absorbent core 11, upper sheet 12 and lower sheet 13.Absorbent core 11 is to absorb and keep Such as the component of the liquid such as menstrual blood (draining off fluid).There is absorbent core 11 cellulose base as liquidabsorbing fibres to inhale The property received fiber and thermoplastic resin fibre.These fibers are mixed with each other and form vertical elongated shape in plan view, such as scheme Shown in dotted line in 1.For example, paper pulp fiber etc. be used as liquidabsorbing fibres, and thermoplastic resin fibre be have it is so-called The composite fibre of sheath-core structure, the sheath-core structure include polyethylene (PE) sheath and polyethylene terephthalate (PET) core.It should be noted that rayon fiber can be used as liquidabsorbing fibres, and polypropylene (PP) individual fibers or PE are individually fine Dimension can be used as thermoplastic resin fibre.Moreover, the liquid absorbent particulates object such as super absorbent polymer (so-called SAP) can It is added into liquidabsorbing fibres.

Upper sheet 12 is the sheet element with shape roughly the same with the flat shape of absorbent core 11, and by making It is engaged with it with adhesive HMA to cover the skin-side surface of absorbent core 11 (referring to Fig. 3).Upper sheet 12 is that have Zhuo The more soft sheet material of the attribute of fluid permeable and by such as supatex fabric (for example, ventilative supatex fabric) or tissue paper system At.Lower sheet 13 is the sheet element with shape roughly the same with the flat shape of absorbent core 11, and by using viscous Mixture HMA is engaged with it to cover the non-skin side surface of absorbent core 11 (referring to Fig. 3).Lower sheet 13 is by for example non- Softness sheet material made of Woven fabric (for example, SMS (spun-bonded/melt-blown/spunbond) supatex fabric) or tissue paper.

Fig. 4 is the plan view such as the absorber 10 of the sanitary napkin 1 seen in the non-skin side in a thickness direction.In Fig. 4 In, make the outer shape for being shown in broken lines sanitary napkin 1 for convenience's sake.Absorber 10 is provided with the dotted compression of multiple absorbers Portion ED10 is to increase the rigidity of absorber 10 and to improve liquid absorption and dispersion.The dotted compression unit ED10 of absorber has substantially Circular planar form and it is arranged to interlaced arrangement pattern, but is not limited in this respect anyway.Moreover, the thickness of absorber 10 It is 3mm or smaller, and in accordance with desirably 2mm or smaller, and the fibre density of absorber 10 is 1.0 × 10⁵To 4.0 × 10⁵ (g/m³), and it is substantially uniform.However, the quality of the per unit area of absorber 10 is in a longitudinal direction in front, central portion It is different between rear portion.In the present embodiment, the quality (weight) of the per unit area of liquidabsorbing fibres is in front 175(g/m²), it is 250 (g/m in central portion²), and be 175 (g/m in rear portion²), that is to say, that the liquid in central portion The quality highest of absorbency fiber, and thickness (t10) of the absorber 10 in central portion is higher than absorber 10 in front and rear In thickness (tb10) (t10 > tb10).

The thickness of liquidabsorbing fibres of the known method measurement in the front of absorber 10, central portion and rear portion can be used Degree, the fiber quality of per unit area and density (also referred to as " fibre density ").For example, for thickness, it is likely that make With dial thickness gauge ID-C1012C or its equivalent from three rich limited liability companies, the area of contactor is set At 20cm²And contact pressure is set to 3gf/cm², press and measure target part, and be then visually compared or make It is compared with the image in the section of the sanitary napkin 1 intercepted in a longitudinal direction.Moreover, with regard to per unit area fiber quality and Speech, it is likely that for example cut out target part as target sample, using direct reading balance (for example, from Seiko is ground from sanitary napkin 1 The electronic balance HF-300 of industry limited liability company) measurement target sample quality, measure the area of target sample, and then count Calculate the quality of per unit area.For fibre density, it is likely that for example cut out target part as target sample from sanitary napkin 1 Product use the quality (g/m of the per unit area of above-mentioned measurement method measurement target sample²), it is measured using above-mentioned measurement method The thickness (m) of target sample, and then with the quality of the per unit area of target sample divided by the thickness of target sample to calculate Fibre density (g/m³)。

In addition, threadiness recess portion 15 extended in longitudinal direction is formed in the transverse direction of non-skin side surface of absorber 10 It entreats in region.Recess portion 15 is shaped generally as straight line, and is arranged on the entire longitudinal length of absorber 10, including when use is defended The crotch portion being located at least in when raw towel in crotch.It is located at it should be noted that " crotch portion " refers to when wearer is using sanitary napkin 1 Region at crotch, and specifically refer to the region that alar part bonding part 40w is formed on the longitudinal direction of sanitary napkin 1.Recess portion 15 lures Lead sanitary napkin during use in a thickness direction to skin side it is prominent and bending.The details of recess portion 15 will be described later.

Top-sheet 20 is the component contacted when using sanitary napkin 1 with the skin of wearer, and for allowing example Such as menstrual blood liquid penetrates into non-skin side from skin side in a thickness direction and is moved to absorber 10.Top-sheet 20 is The soft sheet material of the fluid permeable made of the supatex fabric of the appropriate types such as example ventilative supatex fabric.

As shown in Figure 1, multiple compression units (linear compression unit EL and the dotted compression unit ED20 of main body) are formed in from skin side In the skin-side surface of top-sheet 20, and in this manner, top-sheet 20 and absorber 10 are compressed in a thickness direction To be engaged with each other and integrally.Linear compression unit EL is continuous and extends along the peripheral edge portion of absorber 10, and whole Body substantially forms the loop extended in a longitudinal direction.On the other hand, the dotted compression unit ED20 of main body is generally circular and discrete Ground is formed in the substantially closed region demarcated in top-sheet 20 by linear compression unit EL.

Back sheet material 30 inhibits following situations: having passed through top-sheet 20 during the use of sanitary napkin 1 and has permeated and by inhaling The liquid that acceptor 10 absorbs is leaked out and (is leaked towards non-skin side) towards the undergarment such as underwear.Back sheet material 30 is by poly- second The impermeable soft sheet material of liquid made of the resin film of appropriate type made of alkene (PE) etc..

As shown in Fig. 2, for sanitary napkin 1 to be attached to the bonding part of underwear etc. during the use of sanitary napkin 1, (alar part is viscous Conjunction portion 40w and main body bonding part 40c) the non-skin-surface side of back sheet material 30 is set.Alar part bonding part 40w is formed in the wing The substantially rectangular bonding part of a pair of the non-skin-surface side of portion 30w.Main body bonding part 40c is formed in the following manner: described The edge in part that back sheet material 30 and absorber 10 of a pair of of alar part bonding part 40w in the part between width direction are overlapped Longitudinal direction extend multiple strip regions in coat appropriate adhesive HMA.When using sanitary napkin 1, by the way that main body is glued Conjunction portion 30c is attached to the inside of the crotch portion of the underwear of wearer and sanitary napkin 1 is attached to the underwear of wearer, therefore anti- Only the position of absorber 10 becomes to shift relative to the body of wearer.Similarly, alar part bonding part 40w shape in the following manner At: appropriate adhesive HMA is coated in the substantially rectangular region in alar part 30w.When using sanitary napkin 1, alar part 30w (20w) It is folded to non-skin side, and alar part bonding part 40w is attached to the outside of the crotch portion of the underwear of wearer, therefore is using Period fixed sanitary napkin 1 and inhibition displacement etc..

Next, the formation that dotted compression unit ED10 and ED20 and recess portion 15 will be described.The dotted compression unit of absorber The ED10 and dotted compression unit ED20 of main body is arranged and executing compression from skin side or non-skin side in a thickness direction, so that At least skin side and non-skin side becomes to be recessed.Recess portion 15 is the linear compression unit extended in a longitudinal direction, and setting is including In the middle section of the cross central line X-X of absorber 10 (sanitary napkin 1), and there is the rectangular shape containing predetermined area. Moreover, recess portion 15 is that non-skin-side surface is recessed into linear recess portion therein, and passes through in a thickness direction from absorber 10 Non-skin-surface side executes compression and is arranged.

Fig. 5 A to 5D is the figure for illustrating the formation of dotted compression unit ED10 and ED20 and recess portion 15.Fig. 5 A is by Fig. 1 The schematic cross sectional views of a part indicated by arrow B-B, wherein the dotted compression unit ED10 of absorber has been formed on uncompressed suction In acceptor 10.Fig. 5 B is schematic cross sectional views, and center dant 15 has been formed in the absorber 10 in Fig. 5 A.Fig. 5 C is schematic Cross-sectional view, wherein top-sheet 20 has covered on absorber 10 in figure 5B.Fig. 5 D is schematic cross sectional views, wherein main body point Shape compression unit ED20 has been formed in the sanitary napkin 1 in Fig. 5 C.It should be noted that Fig. 5 A is shown as indicated by the arrow B-B in Fig. 1 Absorber 10 in part, and such aspect is shown, wherein the dotted compression unit ED10 of absorber is forming dotted compression unit ED10 and ED20 and recess portion 15 have been formed in uncompressed absorber 10 in the state of before.Fig. 5 B is shown in Fig. 5 A In absorber 10 in formed recess portion 15 processing during state.Fig. 5 D is shown forms dotted compression unit in absorber 10 In the state of after ED10 and ED20 and recess portion 15 through handling absorber 10.Moreover, the line y-y in Fig. 5 A, 5B and 5C is The center line of absorber 10 in a thickness direction, and the line Y-Y in Fig. 5 D is the center line of sanitary napkin 1 in a thickness direction.It answers It note that center line Y-Y is the center line on the thickness direction of sanitary napkin 1, and is also outer in being described later on for absorber 10 Center line on the thickness direction of side section L.

Firstly, forming the dotted compression unit ED10 of absorber.Uncompressed absorber 10 has thickness in its whole region T10 has surface of the skin-side surface 10t as the skin side of absorber 10, and has non-skin side surface 10b as non-skin The surface of skin side.Uncompressed absorber 10 passes through the protrusion roller (not shown) with protrusion and the anvil roller with smooth surface Roll gap between (not shown), and absorber 10 is from non-skin side compression, therefore forms the dotted compression unit ED10 of absorber.

As shown in Figure 5A, wherein the part for forming the dotted compression unit ED10 of absorber is from both skin side and non-skin side Recess, and on the thickness direction of absorber 10 in approximately centrally located portion.Moreover, because this is compressed, the dotted pressure of absorber The thickness of absorber 10 in contracting portion ED10 is less than thickness t10, and fiber is crushed, so that fibre density ratio is with thickness It is higher in the part of t10.

Next, forming recess portion 15.Recess portion 15 executes compression processing and shape by the lateral center region to absorber 10 At (Fig. 5 B).Specifically, it is formed and uses upper roll 51u and lower rollers 51d including being actuated to rotate in the conveying direction A pair of of roller portion 50 executes.

Fig. 6 is the schematic enlarged view of the pair of roller portion 50.Absorber 10 its longitudinal direction in the conveying direction It is transported in the state of extension.Marking " direction CD " is the direction orthogonal with transporting direction, and the width direction of absorber 10 is substantially Meet the direction CD.

Upper roll 51u is provided with flank 51r, and the flank is continuously prolonged in whole circumference in a rotational direction with annular It stretches.Cross sectional shape of the flank 51r in the section orthogonal with direction of rotation is substantially isosceles trapezoid, and wherein rib width is along top The reduction while direction of the rotating radius of roller 51u extends outwardly, and its front end has the top surface 51rt parallel with the direction CD.Institute In the recess portion 15 of formation, with the deepest part 15m at least partly becoming to be described later on of top surface 51rt a part contacted.? Length on the direction CD (width direction) of top surface 51rt is preferably 0.5mm to 3.0mm, and is in the present embodiment 1.0mm. Moreover, flank 51rt can be inserted into groove portion 51m therein be arranged in lower rollers 51d towards the flank 51r in external peripheral surface Position at.Groove portion 51m is shaped as the ring continuously extended in whole circumference in a rotational direction.Groove portion 51m with rotation Turning the cross sectional shape in the orthogonal section in direction is substantially isosceles trapezoid, and wherein groove width is in the radius of turn along lower rollers 51d Reduction while direction extends internally, and its bottom end has the bottom surface 51mb parallel with the direction CD.

Recess portion 15 is formed by compression processing, and wherein flank 51r is pressed against in groove portion 51m so that absorber 10 The thickness in part contacted with top surface 51rt becomes most thin.Specifically, so that the non-skin side surface 10b of absorber 10 is pair Should be in the side of upper roll 51u, and make the skin-side surface 10t of absorber 10 for the side corresponding to lower rollers 51d, work as absorber 10 between upper roll 51u and lower rollers 51d when moving in the conveying direction, as shown in fig. 6, flank 51r is pressed against groove portion In 51m, until being located at a part of the skin side of the skin-side surface 10t of uncompressed absorber 10.Moreover, the skin being described later on Side pocket p-shaped is contacted at the boundary part between the external peripheral surface of lower rollers 51d and groove portion 51m in absorber 10 Part P₀In.

At this point, fibre density contacting and in absorber 10 with top surface 51rt with the portion of minimum thickness in recess portion 15 Increase in point.Different from the use of the dotted compression unit ED10 and ED20 that anvil roller is formed, recess portion 15 is by the rib that is pressed into groove portion 51m Portion 51r is formed, and is therefore compacted to more compared with dotted compression unit ED10 and ED20.

Next, as shown in Figure 5 C, top-sheet 20 (adhesive HMA can be coated to the top-sheet in advance) covering Absorber 10 skin side and be adhered to the skin side.

The dotted compression unit ED20 of main body is formed after top-sheet 20 has been covered on absorber 10.20 He of top-sheet Absorber 10 is compressed together above top-sheet 20 in a thickness direction, therefore forms the dotted compression unit ED of main body.It is similar It is formed in the following manner in the dotted compression unit ED10 of absorber, the dotted compression unit ED20 of main body: top-sheet 20 is placed in suction On acceptor 10 and by making absorber 10 pass through the protrusion roller (not shown) with protrusion and there is the anvil roller of smooth surface Roll gap between (not shown) executes compression processing (Fig. 5 D) from skin side.

After having formed the dotted compression unit ED20 of main body, it is subsequently formed linear compression unit EL.Linear compression unit EL passes through Following manner is formed: by passing through absorber 10 with the protrusion in the arrangement pattern for corresponding to linear compression unit EL Roll gap between prominent roller (not shown) and anvil roller (not shown) with smooth surface executes compression processing from skin side.

Then, back sheet material 30 is covered on the non-skin side of absorber 10 and is attached to the non-skin side.At this point, bonding Agent HMA is coated in the substantially whole surface of back sheet material 30 in advance with predetermined coating pattern, and then back sheet material 30 exists The non-skin-surface side of absorber 10 is covered on while applying certain pressure.

It should be noted that in the present embodiment, formation, the formation of recess portion 15, top-sheet of the dotted compression unit ED10 of absorber 20 arrangement, the formation of the dotted compression unit ED20 of main body and the formation of linear compression unit EL do not have this with the execution of this order It is restricted.Construction is possible below: recess portion 15 is formed before the formation of the dotted compression unit ED10 of absorber.Moreover, following Construction is possible: top-sheet 20 is covered on absorber 10 before the formation of recess portion 15.

Sanitary napkin 1 during use is described below.Fig. 7 is the figure for illustrating the use aspect of sanitary napkin 1.When wearer will When using sanitary napkin 1, firstly, sanitary napkin 1 is placed in the crotch portion under flat condition and being fixed to underwear, such as the shape in Fig. 7 Shown in state A.At this point, the lateral length of absorber 10 is 70mm, and when alar part 30w (20w) is folded to non-skin side and alar part When bonding part 40w is attached to the outside of the crotch portion of underwear to fix sanitary napkin 1, the lateral length of sanitary napkin 1 become with The lateral length of absorber 10 is roughly the same.Generally, the crotch gap substantially 30mm of wearer, and therefore sanitary napkin 1 (is inhaled Acceptor 10) lateral length at this state A is longer than crotch gap.Normally, the lateral length of absorber 10 is longer, can quilt The amount of the excreta of absorption is bigger, but if the lateral length of absorber 10 is too long, then its crotch that will become larger than wearer Portion gap, and there is the risk for making wearer not feel good, and the excretion due to caused by the bending in unexpected part The risk of object leakage.For this reason, it is contemplated that allow the deformation of the body along wearer, the substantially length of 70mm is suitble to inhale Acceptor 10, as later described.

Next, wearer executes the operation for pulling up its underwear towards its groin 201K.At this point, such as the state B in Fig. 7 Shown, the bending of sanitary napkin 1 is so as to prominent in skin side along the recess portion 15 of absorber 10.When sanitary napkin 1 is disposed in wearer Groin 201K at when, as shown in the state C in Fig. 7, due to being induced by recess portion 15 in skin side part outstanding (Fig. 8 A In skin side portion H etc.) be highly likely to enter the gap including the excretion such as such as introitus source 201He.State C in Fig. 7 Under, the lateral center region of sanitary napkin 1 is normally bent so that the part of non-skin side surface forms the angle of substantially 50 degree, because This realizes the more advantageous cooperation with the body of wearer.Therefore, wearer is likely to feel good fit, and such as menstrual blood It is leaked Deng may more likely be absorbed the absorption of body 10 through draining off fluid.Moreover, because along the body of wearer The size (it is more wider than the crotch gap of wearer) of shape distortion, absorber 10 (sanitary napkin 1) is reduced to suitable wearer's The size of body, and sanitary napkin 1 may cooperate the body of wearer, while also assure that sufficient excreta absorbs.

Fig. 8 A is the schematic cross sectional views of the recess portion 15 in Fig. 5 D.Fig. 9 is to illustrate the recess portion 15 of sanitary napkin 1 before the use Figure.Figure 10 is the figure for illustrating the recess portion 15 of sanitary napkin 1 in the state of the shape extension along jig 70.It is described below In, known method can be used to measure in the length and depth of various parts.For example, the health intercepted along width direction can be used The captured images in the section of towel 1 execute measurement.

Jig 70 includes upper surface, bottom surface and side surface.Upper and lower surfaces are parallel to each other, and side surface is in width It is inclined outwardly 25 degree of mode on degree direction and extends to bottom surface from upper surface.And extend along the side surface for being located at side The angle, θ 70 of virtual line and 50 degree of the virtual line formation extended along the side surface for being located at the other side.Jig 70 is by such as Metal or plastic or other material are made, and be configured so that when sanitary napkin 1 along jig 70 side surface be bent when, jig 70 it is upper Surface is located at the lower section of skin side portion H.

Normally, when wearer puts on sanitary napkin 1 (the state C in Fig. 7), lateral center region bends are so that health The part of the non-skin side surface of towel 1 forms the angle of substantially 50 degree.Therefore, such state is described below, wherein in transverse direction Region bends are entreated so that the part of the non-skin side surface of sanitary napkin 1 forms 50 degree of angle.Specifically, it is such shape State, wherein sanitary napkin 1 is bent, until the part of non-skin side is contacted with the side surface of jig 70, and meanwhile it is shown in Fig. 9 The transverse center of sanitary napkin 1 before the use is directed at (Figure 10) with the transverse center of jig 70.It should be noted that in Figure 10, in Heart line X-X is the transverse center of sanitary napkin 1, and the still transverse center of jig 70.

Recess portion 15 is the groove formed by compression and before the use in sanitary napkin 1.Recess portion 15 is absorber 10 Non-skin side surface 10b in the direction of the width from the starting point of the curvature relative to skin side of side to the other side relative to The part of the terminal of the curvature of skin side.Length 15w in the width direction of recess portion 15 is preferably 1.5mm to 3.5mm, and Length 15w substantially 2.4mm in the present embodiment.Length 15w is longer, and absorber 10 is more easily bent.This makes it possible to press down The side wall portion 15L being described later on and another sidewall portion 15R of absorber 10 processed will apply the risk of pressing force to each other.But It is to be formed in view of recess portion 15 by compression, therefore there are the risks that fiber is hardened when being crushed, and length 15w is longer, such as The volume for the liquid that excreta etc. can be kept is smaller.For this reason, it is contemplated that be readily bent in order to be bent with to skin Side is prominent, and furthermore in view of ensuring that the liquid absorbing region of absorber 10 is used to absorb excreta, preferably in recess portion 15 Width direction on length 15w be 2.0mm to 3.0mm.

Recess portion 15 has the side wall portion 15L positioned at side (left side in Fig. 9 etc.) in the direction of the width, and is located at another Another sidewall portion 15R of side (right side in Fig. 9 etc.).Specifically, side wall portion 15L and another sidewall portion 15R is recess portion 15 Non-skin side surface 10b in the direction of the width be located at deepest part 15m on the outside of part.

Absorber 10 will be referred to as skin side portion H in the skin side part adjacent with recess portion 15 in a thickness direction, And this is region Chong Die with recess portion 15 in the direction of the width (intensive speckle regions in fig. 8 a).Moreover, in the direction of the width On the outside the part adjacent with skin side portion H will be referred to as exterior portion L, be do not formed wherein dotted compression unit ED10 and The region of ED20 and recess portion 15, and its thickness is the thickness t10 of absorber 10.Skin-side surface 10t in outer side section L It is located at substantially phase with the non-skin side surface 10b and skin-side surface 10t and non-skin side surface 10b in untreated absorber 10 Same position.In the present embodiment, thickness t10 substantially 1.3mm.

At this point, the fibre density in skin side portion H is higher than the fibre density in exterior portion L, it is known that generally, fiber Density is higher, and liquid is absorbed faster due to capillarity.For this reason, when lateral center region bends are so that defend When the part of the non-skin side surface of raw towel 1 forms the angle of substantially 50 degree, increase the skin side contacted with excretion source The fibre density in H is divided to be likely to quickly absorb excreta." high-density region DH " refers in skin side and in recess portion Deepest part 15m with the deepest depth adjacent and Chong Die with deepest part 15m in the direction of the width skin side portion H in 15 Region.It (is in fig. 8 a W) (for example, substantially 0.8mm), and high that deepest part 15m has predetermined length in the direction of the width Density area DH has the flat site extended on longitudinal direction and width direction.

Moreover, center Hc on the thickness direction of high-density region DH relative to absorber 10 in the direction of the width Center Lc in a thickness direction at the position Chong Die with exterior portion L is located at skin side.In the present embodiment, center Lc In position roughly the same with the center y-y on the thickness direction of untreated absorber 10.Therefore, during use, though The power acted in width direction by wearer thigh (leg) apply, but be folded so as to skin side protrusion can via deformation be lured It leads so as to prominent to non-skin side.This to be likely to absorb excreta at the position closer to the excretion source of wearer.

The depth of deepest part 15m is (that is in a thickness direction from an exterior portion L (untreated absorber 10) Non-skin side surface 10b to deepest part 15m length L2) ratio is in a thickness direction from deepest part 15m to skin side Divide the length L1 longer (L2 > L1) of the skin-side surface 10t of H (high-density region DH).In the present embodiment, deepest part 15m Length L2 be substantially 0.8mm, in a thickness direction from the skin-side surface 10t's in deepest part 15m to skin side portion H Length L1 is substantially 0.5mm, and the fibre density in high-density region DH is increased by compression processing.

As shown in Figure 10, when the middle section of sanitary napkin 1 is bent so that the part shape of the non-skin side surface of sanitary napkin 1 When at 50 degree of angle, the side wall portion 15L and another sidewall portion 15R of absorber 10 are in the shape for not applying pressing force to each other State.Here, the state of pressing force " to each other apply " refers to following state: due to side wall portion 15L and another sidewall portion 15R it Between contact and the bending angle of sanitary napkin 1 attempt to be increased beyond 50 degree of state；Or back sheet material 30 is present in one side wall Between portion 15L and another sidewall portion 15R and since back sheet material 30 is positioned at the non-skin being adhered in the region of side wall portion 15L Skin side surface and back sheet material 30 are located at the contact being adhered between the non-skin side surface in the region of another sidewall portion 15R And the bending angle in the lateral center region of sanitary napkin 1 cannot be set as 50 degree of state；Or back sheet material 30 is present in one Between sidewall portion 15L and another sidewall portion 15R and the bending angle of sanitary napkin 1 attempts to be increased beyond 50 degree of state.

The side wall portion 15L and another sidewall portion 15R of sanitary napkin 1 are not contacted each other, and being located at for back sheet material 30 bonds It is not adhered to another sidewall portion 15R's with being located at for back sheet material 30 to the non-skin side surface in the region of side wall portion 15L Non-skin side surface contact in region.Therefore, side wall portion 15L and another sidewall portion 15R is not at applies pressing to each other The state of power.For this reason, at state of putting on (the state C in Fig. 7), even if the lateral center region bends of absorber 10 So that the part of the non-skin side surface of sanitary napkin 1 forms the angle of substantially 50 degree, the bending of absorber 10 can also be inhibited The risk of obstruction by side wall portion 15L and another sidewall portion 15R, sanitary napkin 1 can be deformed more easily to its non-skin The part of skin side surface forms the angle of substantially 50 degree, and absorber 10 can advantageously match relative to the excretion source of wearer It closes.

Moreover, for the ease of preventing side wall portion 15 and another sidewall portion 15R from applying pressing force, deepest part to each other The lateral length W of 15m is set greater than the depth (L2) (W > L2) of the deepest part 15m of recess portion 15.Therefore, with wherein most deep The case where dividing the lateral length W of 15m to be less than depth (L2) of deepest part 15m is compared, when sanitary napkin 1 is bent so that non-skin When the part of side surface forms 50 degree of angle, more likely prevent side wall portion 15L and another sidewall portion 15R from applying to each other Pressing force.Absorber 10 can be deformed more easily, so that the body with wearer advantageously cooperates.

In addition, the lateral length W of deepest part 15m is greater than the thickness t10 (thickness of absorber 10) of exterior portion L, and Less than twice (t10 < W < t10 × 2) of the thickness of absorber 10.It is less than absorber with the lateral length W of wherein deepest part 15m The case where 10 thickness t10 (t10 > W) in outer side section, is compared, and is greater than in the lateral length W of wherein deepest part 15m outer In the case where the thickness t10 of side section L, when sanitary napkin 1 is bent so that the part of non-skin side surface forms 50 degree of angle When, side wall portion 15L and another sidewall portion 15R can be spaced more according to the longer lateral length W of deepest part 15m Far.For this reason, the thickness t10 in outer side section of absorber 10 is less than with the lateral length W of wherein deepest part 15m The case where (t10 > W), is compared, and is greater than the thickness of the exterior portion L in sanitary napkin 1 in the lateral length W of wherein deepest part 15m In the case where t10 (t10 < W), it is likely that further suppress side wall portion 15L and another sidewall portion 15R applies pressing to each other Power.

Normally, the lateral length W of deepest part 15m is bigger, the easier side wall portion 15L for inhibiting absorber 10 and another Side wall portion 15R applies the risk of pressing force to each other.But the lateral length W of deepest part 15m is longer, in absorber 10 Lateral center region in the gap area that is formed it is bigger.This makes the region for absorbing excreta become smaller.Moreover, it is contemplated that logical Overcompression processing forms recess portion 15, and the size of the high-density region DH with high microsteping density increases, and there are quality deteriorations Risk.For this reason, the lateral length W of deepest part 15m be set as less than absorber 10 thickness twice (W < t10 × 2), to be likely to the risk for inhibiting side wall portion 15L and another sidewall portion 15R to apply pressing force to each other, absorber is kept The amount of 10 absorbable excretas, and inhibit the deterioration of the quality as caused by the excessive high-density region DH with high microsteping density Risk.

In addition, the lateral shortest distance L4 between side wall portion 15L and another sidewall portion 15R is less than most in sanitary napkin 1 The lateral length W (L4 < W) of 15m is divided in deep.In Figure 10, shortest distance L4 be side wall portion 15L side closest approach 15Lp with The distance between other side closest approach 15Rp of another sidewall portion 15R.Wall portion 15L in side shown in Fig. 10 and another sidewall portion 15R is prevented from applying pressing force to each other, and therefore shortest distance L4 is greater than 0 (L4 > 0).At this point, when sanitary napkin 1 be bent so that When must be 50 degree by the angle that the part of non-skin side surface is formed, even if shortest distance L4 be less than the transverse direction of deepest part 15m Length W (L4 < W) is also likely to inhibit the phenomenon that side wall portion 15L and another sidewall portion 12R apply pressing force to each other.It should infuse Meaning, the shortest distance L4 between side wall portion 15L and another sidewall portion 15R change according to the shape of recess portion 15.In sanitary napkin 1 In, shortest distance L4 is located at skin side relative to the part of the back sheet material 30 farthest away from skin side positioning.

In a thickness direction from deepest part 15m to the distance of side closest approach 15Lp and in a thickness direction from most deep Divide the distance of 15m to other side closest approach 15Rp to be equal to each other, and is distance A.Distance A is shorter than the transverse direction of deepest part 15m Length W (A<W), and it is therefore more likely that one compared with the case where wherein distance A is greater than lateral length W (A>W) of deepest part 15m Sidewall portion 15L and another sidewall portion 15R is less likely to apply pressing force to each other.In this way, even if as side wall portion 15L and another Sidewall portion 15R each other closest to (shortest distance L4) when, by selecting construction appropriate for recess portion 15, be also likely to prevent side Wall portion 15L and another sidewall portion 15R apply pressing force to each other, and are likely to the risk for inhibiting to hinder deformation, according to the change It is protruded to skin side in the lateral center region of shape, absorber 10.

Although the construction of recess portion 15 is described above, the present invention is not limited to this constructions.It is sufficient that: recess portion 15 prevent side wall portion 15L and another sidewall portion 15R from applying pressing force to each other.The constituent element of recess portion 15 for example, recessed The lateral length W in portion 15；The depth L2 and lateral length W of deepest part 15m；And in a thickness direction from deepest part 15m To the distance L1 of the skin-side surface 10t of high-density region DH.One or more of these constituent elements can be optimised, with Just prevent the side wall portion 15L and another sidewall portion 15R of recess portion 15 from applying pressing force to each other.

Moreover, in the direction of the width, in the part adjacent with two of the high-density region DH farthest away from skin side outsides In be provided on the inside of skin side pocket P compared with high-density region DH with lower fibre density skin side portion H (figure 10).For this reason, under state of putting on, other than high-density region DH, the skin side portion adjacent with high-density region DH H is also contacted with the skin of wearer, so that being likely to improve quality.

Moreover, deepest part 15m and back sheet material 30 are separated from each other, and deepest part 15m and back as shown in Fig. 8 A etc. Sheet material 30 is not bonded to each other using adhesive HMA.This to be likely to reduce following risk: when absorber 10 is deformed so that The rigidity of back sheet material 30 will hinder absorber 10 when the specifically deepest part 15m of recess portion 15 swells to skin side and is prominent Deformation.Moreover, pressing force is applied in a thickness direction when back sheet material 30 is covered on absorber 10.Therefore, as schemed Shown in 8A and 9, the lateral ends 15e of the recess portion 15 of sanitary napkin 1 is adhered to back sheet material 30 before the use.That is, back A part of portion's sheet material 30 is pulled towards recess portion 15, and therefore, and the end 15e of recess portion 15 is adhered to back sheet material 30, and bonds Agent HMA inwardly exists relative to end 15e in the direction of the width, but deepest part 15m and back sheet material 30 are not bonded to each other. Moreover, when sanitary napkin 1 is bent so that the part of non-skin side surface forms 50 degree of angle, recess portion 15 is bent so as to skin Skin side is prominent (Figure 10).At this point, not only a part of absorber 10 but also back sheet material 30 is also to skin when sanitary napkin 1 is bent Skin side protuberance.For this reason, between back sheet material 30 and absorber 10 exist bigger contact area, and from end 15e to Interior inboard portion 15i (it is previous and does not adhere to backsheet material 30) becomes recently to bond, so that being likely to make Curved shape is more easily maintained with period.

In addition, the pair of skin side pocket P is arranged in high-density region DH's in the longitudinally central portion of absorber 10 Outside in width direction.Skin side pocket P extends in the skin-side surface of absorber 10 in a longitudinal direction.Fig. 8 B is shown Following state: wherein absorber 10 contacts at two points with virtual line V, and the virtual line becomes to lean on along width direction The section of nearly sanitary napkin 1 (absorber 10).Skin side pocket P is the groove formed by compression.It is being in using preceding state In sanitary napkin 1, one in two contact points at the skin-side surface 10t of absorber 10 of virtual line and absorber 10 It is depression starting point, and another contact point is depression terminal.The lateral length Wp of each skin side pocket P is less than the transverse direction of recess portion 15 Length 15w.Specifically, length Wp is preferably 0.3mm to 1.2mm, and length Wp substantially 0.8mm in the present embodiment.Cause This, absorber 10 is induced with to skin lateral bend due to longer recess portion 15 in the direction of the width.And absorber 10 can be by It is induced in skin side pocket P shorter in the direction of the width with to non-skin lateral bend.

The depth of skin side pocket P refers to the length L3 (Fig. 8 B) between virtual line V and skin side deepest part Pm.Such as Shown in Fig. 8 A etc., the skin side deepest part Pm of each skin side pocket P is separated with top-sheet 20, and skin side deepest part Pm and top-sheet 20 are not bonded to each other using adhesive HMA.This can reduce skin side pocket P due to the higher top of rigidity Sheet material 20 and become fixed risk so that be likely to maintain skin side pocket P as the part being easily deformed.Moreover, Absorber 10 can be easy at skin side pocket P to fold to non-skin side, and the deepest part 15m between skin side pocket P is (high Density area DH) it can be easy to maintain even shape, so that being likely to be modified to the surface texturisation of wearer.

===other embodiments===

Although embodiment of the disclosure has been described above, the above embodiments of the disclosure only help to understand this It discloses and should not be construed in any way to limit the disclosure.The disclosure can without departing from its main purpose in the case of carry out it is a variety of Change or changes and cover its equivalent.For example, the modification being described below is possible.

Although recess portion 15 is formed on the entire longitudinal length of absorber 10 in the above-described embodiments, there is no limits for comparison System.If recess portion 15 is arranged in at least crotch portion corresponding to the crotch of wearer during use, in sanitary napkin 1 Lateral center region in crotch portion it is more likely prominent to skin side so that absorber 10 (sanitary napkin 1) very may be used Can favorably it cooperate relative to the excretion source of wearer.It is noted that if recess portion 15 is as being formed in absorber 10 in sanitary napkin 1 In whole length, then absorber 10 can be easier it is prominent to skin side.

Moreover, no setting is required on the entire longitudinal length of absorber 10 by skin side pocket P.If skin side pocket P is set It sets in at least crotch portion of crotch for corresponding to wearer during use, then between the pair of skin side pocket P Region can maintain even more close to flat condition.This to be likely to improve the cooperation relative to excretion source, while still improving Surface texturisation.It should be noted that in the rear side of sanitary napkin 1, when it is desirable that wherein the shape of absorber 10 is according to the seat area of wearer Shape gradually change when putting on state, the region for being provided with recess portion 15 and skin side pocket P can put on shape according to this State suitably changes.

Moreover, in the above-described embodiments, as shown in fig. 6, the thinnest part of absorber 10 passes through the flank of upper roll 51u 51r, which is pressed against, to be contacted top surface 51rt with absorber 10 in the groove portion 51m of lower rollers 51d and is formed, but is not had to this It is restricted.Figure 11 shows the variation example of a pair of of roller portion 50.As shown in figure 11, such construction is possible, wherein upper roll 51u Flank 51r and lower rollers 51d groove portion 51m between gap be varied so that the thinnest part of absorber 10 is to be interposed in Region between the inclined surface of flank 51r and the inclined surface of groove portion 51m, rather than the part contacted with top surface 51rt.Therefore, This, which to be likely to reduce the part contacted with the skin of wearer during use, is excessively compressed securely and is hardened Risk so that be likely to improve quality.

In addition, adhesive HMA will not be applied to the deepest part 15m of the recess portion 15 of sanitary napkin 1, and deepest part 15m It is not bonded to each other, but is not limited in this respect with back sheet material 30.Adhesive HMA can be applied to deepest part 15m, and most deep Divide 15m and back sheet material 30 that can be bonded to each other.Therefore, it is more likely that reducing to skin side risk excessively outstanding, and adjusts and wear The quality for the part that the excretion source of wearer is contacted.

Similarly, adhesive HMA will not be applied to the deepest part Pm of the skin side pocket P of sanitary napkin 1, and most deep Divide Pm and top-sheet 30 not to be bonded to each other, but is not limited in this respect.Adhesive HMA can be applied to deepest part Pm, and most Deep divides Pm and top-sheet 20 that can be bonded to each other.

Reference signs list

1 sanitary napkin (sanitary napkin), 10 absorbers, 10t skin-side surface, 10b non-skin side surface, 11 absorbabilities Core, 12 upper sheets, 13 lower sheets, 15 recess portions, the deepest part 15m, the end 15e, the inboard portion 15i, the side 15L wall portion, The side 15Lp closest approach, another sidewall portion of 15R, the other side 15Rp closest approach, 20 top-sheets (skin side sheet material), the periphery 20e Edge part, 20w alar part, 30 back sheet materials (non-skin lateral plate material), 30e peripheral edge portion, 30w alar part, 40c main body bonding part, 40w alar part bonding part, 50 a pair of of roller portions, 51u upper roll, 51d lower rollers, 51r flank, 51m groove portion, the top surface 51rt, the bottom 51mb Face, 70 jigs, 201K crotch, 201He excretion source, DH high-density region, the dotted compression unit of ED10 absorber, ED20 main body are dotted Compression unit, EL threadiness compression unit, H skin side portion, L exterior portion, HMA adhesive, P skin side pocket, Pm skin side are most deep Part.

Claims

1. a kind of absorbent commodity with orthogonal longitudinal direction, width and thickness direction,

The absorbent commodity includes:

Absorber, with liquidabsorbing fibres；With

The absorber has recess portion in the lateral center region of the absorber,

The side wall portion and the other side in the width direction that the recess portion has side in the width direction Another sidewall portion,

The recess configuration is at making: when the lateral center region bends of the absorber are so that the absorbent commodity The part of non-skin side surface when forming 50 degree of angle, the side wall portion and another sidewall portion do not apply to each other Pressing force.

2. absorbent commodity according to claim 1, in which:

It is adjacent with the recess portion on the outside about most deep deepest part in the recess portion, and in the width direction Exterior portion,

At the position Chong Die with the deepest part in the width direction of the absorber on the thickness direction Center relative at the position Chong Die with the exterior portion in the width direction of the absorber in the thickness Center on degree direction is located at skin side.

3. absorbent commodity according to claim 1 or 2, in which:

4. according to claim 1 to absorbent commodity described in any one of 3, in which:

When the absorber the lateral center region bends so that the non-skin side surface partially formed 50 When the angle of degree,

The lateral shortest distance between the side wall portion and another sidewall portion is less than the lateral length of the deepest part.

5. absorbent commodity according to claim 4, in which:

The transverse direction shortest distance is the side closest approach of the side wall portion and the other side closest approach of another sidewall portion The distance between, and

On the thickness direction from the deepest part to the distance of the side closest approach and on the thickness direction from The deepest part is less than the lateral length of the deepest part to any of the distance of the other side closest approach.

6. according to claim 1 to absorbent commodity described in any one of 5, in which:

The lateral length of the deepest part is greater than the thickness in outer side section of the absorber, and the exterior portion is in institute It states adjacent with the recess portion on the outside in width direction.

7. according to claim 1 to absorbent commodity described in any one of 6, in which:

8. according to claim 1 to absorbent commodity described in any one of 7, in which:

It is higher than

Including the fibre in the skin side portion and with the lateral position adjacent portion that the deepest part is arranged Tie up density.

9. according to claim 1 to absorbent commodity described in any one of 8, in which:

The pair of skin side pocket is separately positioned on the outside of deepest part in the width direction, and the deepest part exists It is most deep in the recess portion, and

The deepest part is deeper than the skin side pocket.

10. according to claim 1 to absorbent commodity described in any one of 9, in which:

The absorbent commodity further comprises skin side sheet material, and the skin side sheet material is arranged in institute on the thickness direction The skin side of absorber is stated,

11. according to claim 1 to absorbent commodity described in any one of 10, in which:

Described adhesive is coated to the end for being located at the recess portion in the width direction of the non-skin lateral plate material A part of inside.

12. absorbent commodity according to claim 11, in which:

The non-skin lateral plate material adheres to the deepest part.