CN104023687A - Absorptive article - Google Patents
Absorptive article Download PDFInfo
- Publication number
- CN104023687A CN104023687A CN201280064864.9A CN201280064864A CN104023687A CN 104023687 A CN104023687 A CN 104023687A CN 201280064864 A CN201280064864 A CN 201280064864A CN 104023687 A CN104023687 A CN 104023687A
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- China
- Prior art keywords
- sheet material
- absorber
- absorbent commodity
- area
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
- A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
- A61F13/533—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/535—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
- A61F13/536—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes having discontinuous areas of compression
Abstract
This absorptive article (1) has a liquid-permeable front surface sheet (10), a liquid-impermeable outer cover sheet (20), an absorption body (30), and a second sheet (15). The absorptive article (1) also has a first region (R1) in which the skin contact-side surface of the absorption body and the second sheet are in contact with each other, and has a second region (R2) in which the skin contact-side surface of the absorption body and the front surface sheet are in contact with each other. Compressed sections (31) formed by compressing the absorption body in the thickness direction are formed on the absorption body. The front surface sheet and the second sheet are arranged along the skin contact-side surface of the absorption body, and as a result, first recesses (11) and second recesses (12) are formed in the skin contact-side surface of the absorptive article, the first and second recesses (11, 12) following the compressed sections of the absorption body. The depth of the first recesses in the first region is less than the depth of the second recesses in the second region.
Description
Technical field
The present invention relates to dispose the absorbent commodity of the second sheet material between end face sheet material and absorber.
Background technology
Patent documentation 1 has been described a kind of absorbent commodity, its there is the back layer of the top coat of liquid permeability, non-liquid permeability and be configured in top coat and back layer between absorbed layer, wherein, top coat forms (for example,, referring to patent documentation 1) by two hot-wind nonwoven cloths (air-through nonwoven fabric).According in the absorbent commodity of patent documentation 1, top coat and absorbed layer are joined together by thermal weld, and from top coat to absorbed layer, are formed with multiple recesses.
According to the absorbent commodity of structure described above, recess makes top coat and absorbed layer close contact make it easily suck body fluid each other, makes two hot-wind nonwoven cloths that form top coat suck body fluid and can absorb the body fluid being inhaled into by absorbed layer.
[background technology document]
[patent documentation]
Patent documentation 1: TOHKEMY 2003-291234 communique (Fig. 3 etc.)
Summary of the invention
the problem that invention will solve
But the absorbent commodity of describing in patent documentation 1 has following problem.
Two hot-wind nonwoven cloths that form top coat suck the body fluid of discharging from wearer.But in the region that is formed with recess of top coat, top coat is compressed on thickness direction, thereby reduce the capacity of top coat.The risk that this causes the ability that sucks body fluid to reduce.Suck body fluid ability reduce make body fluid easily residue in top coat, thereby the deteriorated risk of the comfort while causing wearing absorbent commodity.
Therefore, make the present invention in view of foregoing problems, the object of this invention is to provide a kind of deteriorated absorbent commodity of comfort improving when sucking the performance of body fluid and preventing from wearing absorbent commodity.
for the scheme of dealing with problems
In order to overcome the above problems, comprising according to absorbent commodity of the present disclosure (absorbent commodity 1): the end face sheet material (end face sheet material 10) of liquid permeability; The outer packaging sheet (outer packaging sheet 20) of non-liquid permeability; Be arranged on the absorber (absorber 30) between described end face sheet material and described outer packaging sheet; And be arranged between described end face sheet material and described absorber and cover the second sheet material (the second sheet material 15) of a part for described absorber, described absorbent commodity comprises: first area (first area R1), in this first area, the contact skin side surface of described absorber and described the second sheet material contact with each other; And second area (second area R2), in this second area, described contact skin side surface and the described end face sheet material of described absorber contact with each other.Described absorber is provided with by the non-contact skin side of the contact skin side direction through-thickness (thickness direction T) from described absorber and compresses multiple compression units that described absorber forms.By configuring described end face sheet material and described the second sheet material along the described contact skin side surface of described absorber, make the contact skin side surface of described absorbent commodity be provided with the multiple recesses (the first recess 11, the second recess 12) along the described compression unit of described absorber.The degree of depth of the described recess in described first area is less than the degree of depth of the described recess in described second area.
the effect of invention
Because the second sheet material is configured to contact with absorber the degree of depth that the degree of depth of the recess in the first area at place is less than the recess in the second area that end face sheet material is configured to contact with absorber place, so the recess in first area can form with relatively little size, to prevent that body fluid from spreading on the contact skin side surface of end face sheet material.In addition, the recess in first area is more shallow than the recess in second area, and its difference is the thickness that is configured in the second sheet material in first area, and due to this second sheet material, can suck body fluid and keep.So, by guaranteeing the ability of the suction body fluid in first area and preventing that body fluid from residuing in end face sheet material, can provide a kind of deteriorated absorbent commodity of comfort can prevent from wearing time.
Brief description of the drawings
Fig. 1 is according to the plane graph of the absorbent commodity of present embodiment.
Fig. 2 is the sectional view intercepting along the line X1-X1 ' of Fig. 1.
Fig. 3 is the sectional view intercepting along the line X2-X2 ' of Fig. 1.
Fig. 4 is the amplification sectional view of absorbent commodity.(a) of Fig. 4 is the amplification sectional view of the A part shown in Fig. 2, and (b) of Fig. 4 is the amplification sectional view of the B part shown in Fig. 3.
Fig. 5 is the figure that the configuration pattern of the compression unit of absorber is shown.
Detailed description of the invention
Hereinafter, with reference to accompanying drawing, the absorbent commodity according to embodiment is described.In this embodiment, absorbent commodity 1 is open type diaper.In this embodiment, open type diaper means following diaper: before using, in deployed condition, instead of be formed as in advance the shape of medicated underpants, and by the predetermined portions of product being fixed to one another with belt etc. with it being through by wearer.Note, diaper can be that pant diaper, adult diaper and child use any in diaper.
In brief description of the drawings below, same or analogous Reference numeral is used for representing same or similar part.Should be appreciated that accompanying drawing is for schematically showing, the ratio of each size etc. are different from reality.So, should consider that explanation below determines concrete size.In addition, in accompanying drawing, mutual size relationship or ratio are naturally different.
Fig. 1 is the plane graph of absorbent commodity 1.Fig. 2 is the sectional view intercepting along the line X1-X1 ' of Fig. 1.Fig. 3 is the sectional view intercepting along the line X2-X2 ' of Fig. 1.Absorbent commodity 1 have the abdominal part side that is configured in wearer Attacking Midfielder's region S1, be configured in wearer's the low back region S2 of back side and corresponding with wearer's crotch and be positioned in the crotch region S3 between Attacking Midfielder's region S1 and low back region S2.
Absorbent commodity 1 has end face sheet material 10, side sheet material 60, second sheet material 15 of liquid permeability, outer packaging sheet 20 and the absorber 30 of non-liquid permeability.Absorbent commodity 1 has the front side of the wearer's body of extending to and the fore-and-aft direction L of rear side, with the orthogonal width W of fore-and-aft direction, towards wearer's interior direction T1 with towards the outer direction T2 of the opposition side (away from wearer's a side) of inward direction.For example, interior direction T1 points to the contact skin side of end face sheet material, and outer direction is pointed to non-contact skin side.
End face sheet material 10 is arranged on the contact skin side with wearer's contact skin.End face sheet material 10 is by forming such as the liquid permeability sheet material of hydrophilic non-woven or fabric, apertured plastic film or porose hydrophobicity non-woven fabrics etc.
The second sheet material 15 is engaged to the non-contact skin side (outer direction side) of end face sheet material 10.The second sheet material 15 is configured between end face sheet material 10 and absorber 30.Be provided with the second sheet material 15, can increase thus the infiltration rate of body fluid and can prevent that the body fluid after absorption from refluxing.For example adopt hot-wind nonwoven cloth or perforated membrane etc. as the material for the second sheet material 15.
The second sheet material 15 is formed at little than absorber 30 of size on width and fore-and-aft direction.The second sheet material 15 is configured to cover a part for absorber 30.
Side sheet material 60 is configured on interior direction T1 with respect to end face sheet material 10 in the mode that covers respectively the both ends, outside on the width of end face sheet material 10.Use sheet material of non-liquid permeability etc. as the material for side sheet material 60.By binding agent etc., side sheet material 60 is bonded to the contact skin side surface of end face sheet material 10.
Turned back to form overlapping side sheet material in the medial end place of each side sheet material 60 on width.Turned back to form the part place at overlapping sheet material place, side at side sheet material, leakproof elastic component 61 is configured to be in the state being stretched on fore-and-aft direction L.Side sheet material 60 and leakproof elastic component 61 are configured for preventing the leakproof wall of body excretions side leakage.The both ends place of leakproof wall on the width of absorber 30 is along the fore-and-aft direction setting of absorbent commodity 1.
Outer packaging sheet 20 has: the back side non-woven fabrics 21 contacting with clothes; With the back side film 22 that is oriented to the non-liquid permeability forming near skin side and for example, by waterproof membrane (polyethylene) than back side non-woven fabrics 21.Back side film 22 is made up of the film of poisture-penetrability or non-poisture-penetrability.
Absorber 30 is arranged between outer packaging sheet 20 and end face sheet material 10 and the second sheet material 15.Absorber 30 absorbs wearer's body fluid.Absorber 30 is by such as pulverizing the absorbent core of pulp (ground pulp) and superabsorbent polymer etc. and forming for the absorbent sheet of such as the napkin (tissue) etc. that covers absorbent core.
In absorber 30, be formed with the compression unit 31 being compressed by through-thickness T.Compression unit 31 is contracted from the direction T2 side pressure outward of interior direction T1 side, and is recessed in direction from inside to outside.On the contact skin side surface of absorbent commodity, be formed with the recess configuring along the compression unit 31 of absorber 30.These recesses configure end face sheet material 10 by the compression unit 31 along absorber 30 and the second sheet material 15 forms.In this embodiment, the contact skin side surface 1A of absorbent commodity is made up of the contact skin side surface of end face sheet material.The cross sectional shape of absorber, end face sheet material and the second sheet material will be explained below.
Side sheet material 60 and the outside of outer packaging sheet 20 on the width of end face sheet material 10 are joined together.At crotch region S3 place, the inner side on width is recessed into the outboard end on width of side sheet material 60 and outer packaging sheet 20.The recess of crotch region S3 region is around exactly the lower limb bore region along wearer's shank configuration.In lower limb bore region, dispose lower limb hole elastic component 35 flexible on fore-and-aft direction.
Each lower limb hole elastic component 35 configures and is made up of three elastic components along fore-and-aft direction L, and these three elastic components have interval between being configured between two on width.Lower limb hole elastic component 35 with the state configuration that is stretched on fore-and-aft direction L between side sheet material 60 and back side film 22.
Attacking Midfielder's region S1 of side sheet material 60 and outer packaging sheet 20 and low back region S2 stretch out from crotch region S3 broad ways, and form anterior flank and rear portion flank.
Be provided with sheet material 60 and the outward extending fixed component 41 of outer packaging sheet 20 broad ways from the side at the rear portion flank of low back region S2.Fixed component 41 is engaged to outer packaging sheet 20.Fixed component 41 stretches out from end face sheet material 10 broad ways.Each fixed component 41 is by treating that the 41A of hook portion engaging with target described later portion (not shown) and the locking plate 41B that the 41A of hook portion is installed form.
The 41A of hook portion is provided with multiple hook (not shown) of catching target portion.Fixed component 41 and target portion form hook and catch ring to realize fixing hook-loop fixed system, and fixed component 41 plays the effect of hook.Target portion is arranged at the back side non-woven fabrics 21 as the outer direction side surface of Attacking Midfielder's region S1.The hook that target cage structure becomes to make it possible to be arranged in the 41A of hook portion of fixed component 41 is caught, and plays the effect of ring portion.
The abdominal part side and the low back region S2 that contact with wearer's crotch at crotch region S3, Attacking Midfielder's region S1 are configured in wearer are configured under wearer's the state of back side, make fixed component 41 catch target portion.This makes wearer's mode that waistline region and low back region were configured to the waistline that covers wearer in the past wear absorbent commodity 1.
Subsequently, explain the cross sectional shape of the absorbent commodity 1 of structure described above based on Fig. 2 and Fig. 3.Fig. 2 is the sectional view intercepting along the line X1-X1 ' of Fig. 1, for the contact with each other cross section of first area R1 at place of the contact skin side surface 30A of absorber 30 and the second sheet material 15 is shown.Fig. 3 is the sectional view intercepting along the line X2-X2 ' of Fig. 1, for the contact with each other cross section of second area R2 at place of the contact skin side surface 30A of absorber 30 and end face sheet material 10 is shown.
First area R1 is the region that has configured the second sheet material 15 in the plane graph shown in Fig. 1.Second area R2 is a part that has configured the region of absorber 30 in the plane graph shown in Fig. 1, and is the region that does not configure the second sheet material 15 on absorber 30.Second area R2 is first area R1 region around, and is configured in two outsides on two outsides and the fore-and-aft direction on the width of first area R1.
In the R1 of first area, end face sheet material 10 and the second sheet material 15 are disposed at absorber 30, and side sheet material 60 is also configured in the part in this region.In second area R2, configure end face sheet material 10, side sheet material 60 is also configured in the part in this region.End face sheet material 10 and the second sheet material 15 are along the contact skin side surface 30A configuration of absorber and along the surface configuration of compression unit 31.This configuration on the compression unit 31 of absorber 30 of end face sheet material 10 and the second sheet material 15 causes on the contact skin side surface 1A of absorbent commodity 1 and is formed with multiple recesses along the compression unit 31 of absorber 30.The shape of recess forms along compression unit 31, and recess is not by compressing end face sheet material and the second sheet material forms on thickness direction, but the thickness that is constructed such that end face sheet material and the second sheet material self and recess do not have difference compared with around.
Note, the medial end on the width of side sheet material 60 separates with end face sheet material 10, and is configured to shrink on fore-and-aft direction L due to the effect of aforementioned leakproof elastic component 61, to rise from end face sheet material 10 on interior direction T1.So side sheet material 60 does not arrange recess.
(a) of Fig. 4 is the amplification sectional view of A in Fig. 2 part, for the sectional view of absorbent commodity 1 of first area R1 is shown.(b) of Fig. 4 is the amplification sectional view of B in Fig. 3 part, for the sectional view of absorbent commodity 1 of second area R2 is shown.Recess comprises the first recess 11 that is formed at first area R1 and the second recess 12 that is formed at second area R2.
The first recess 11 configures end face sheet material 10 by the compression unit 31 along absorber 30 in the R1 of first area and the second sheet material 15 is formed at end face sheet material 10.In the R1 of first area, the second sheet material 15 is configured between end face sheet material 10 and compression unit 31.On the other hand, the second recess 12 configures end face sheet material 10 by the compression unit 31 along absorber 30 in second area R2 and is formed at end face sheet material 10.In second area R2, between end face sheet material 10 and compression unit 31, do not configure the second sheet material 15, and end face sheet material 10 directly contacts compression unit 31.
End face sheet material 10 and the second sheet material 15 are not compressed on thickness direction, and the thickness T b substantially constant of the thickness T a of end face sheet material 10 and the second sheet material 15.For example, if end face sheet material and the second sheet material are compressed, capacity of end face sheet material etc. reduces, thus the risk that causes the performance that sucks body fluid to reduce.But end face sheet material etc. is configured to guarantee its capacity along compression unit, thereby can suppress reducing of inlet capacity.
While comparing between the first recess 11 and the second recess 12, the degree of depth of the first recess 11 is less than the degree of depth of the second recess 12, and its difference is the thickness T b of the second sheet material 15, and the degree of depth Ty11 of the first recess 11 is less than the degree of depth Ty12 of the second recess.Note, the degree of depth of the recess in present embodiment is that the position of inner side of the contact skin side surface of the end face sheet material from being provided with recess is to the length the thickness direction of recess bottom surface.
The object of the second sheet material 15 is to improve the ability that sucks body fluid, and the second sheet material 15 is configured to contact with the scavenge port of discharging body fluid.If the degree of depth Ty11 of the first recess 11 is large in the first area that disposes above-mentioned the second sheet material 15, the body fluid of discharging moves in the mode of scattering along wearer's skin, thus when the viscosity of skin is caused wearing the deteriorated risk of comfort.But, because the degree of depth Ty11 of the first recess is less than the degree of depth Ty12 of the second recess 12 that the second sheet material 15 is not set, so the first recess can form with relatively little size, and can prevent that body fluid from spreading on the contact skin side surface of end face sheet material.
The body fluid that is discharged to first area R1 is being prevented from through-thickness displacement under the state scattering on end face sheet material, thereby is maintained in the second sheet material 15.The second sheet material 15 without processing by compression maintains its capacity to keep a large amount of body fluid, thereby can improve an absorbent properties.As mentioned above, moving at end face sheet material upper reaches by preventing liquid, prevent that liquid from spreading on end face sheet material 10, thereby can reduce contacting between skin and urine.
On the other hand, the degree of depth Ty12 of the second recess 12 is larger compared with the first recess 11, and this makes can be caught such as the solids of feces etc., thereby can improve the wiping ability of second area R2.Solids such as feces etc. is easily connected in the second recess, thereby can prevent from flowing along end face sheet material.In addition the solids of being caught, is easy to be stored in second recess 12 with the relatively large degree of depth.So the second recess 12 is caught feces to prevent that feces from flowing away preventing that feces is attached under the state on skin.
In addition, because having the second recess 12 of the relatively large degree of depth is formed as adjacent with the surrounding of the second sheet material 15, so the liquid of not caught by the second sheet material 15 can be stopped in the edge of the second sheet material 15, thereby prevent that body fluid from diffusing to around end face sheet material 10 from end face sheet material 10, can reduce the contact surface between body fluid and skin thus.
First area R1 on end face sheet material 10 with in second area R2, form recess and cause with the situation of the end face sheet material 10 with even surface and compare the area change that contacts body fluid, thereby can promptly suck body fluid.In addition, in absorber 30, be formed with compression unit 31, and the body fluid that is absorbed body absorption by end face sheet material and the second sheet material is at absorber internal diffusion.So, can in wide region, keep body fluid, thereby increase absorbent properties.
Absorbent commodity is constructed such that thickness that the thickness that is represented as Wx, end face sheet material at the width of the compression unit 31 of absorber is represented as Ta and the second sheet material is represented as and Tb, meets formula 1.
(formula 1) Wx > (Ta) × 2
In the situation that meeting formula 1, under the state that recess configures along compression unit 31 at end face sheet material 10, be formed at the contact skin side surface of end face sheet material 10.On the other hand, in the situation that not meeting formula 1, exist the situation that is formed at whole end face sheet material under the state that end face sheet material 10 is not configured in compression unit 31 and recess does not configure along compression unit 31 at end face sheet material 10.
In addition, absorbent commodity is constructed such that to be represented as and Tb, to meet formula 2 at the thickness of the second sheet material 15.
(formula 2) Wx > (Ta+Tb) × 2
In the situation that meeting formula 2, under the state that recess configures along compression unit 31 at end face sheet material 10 and the second sheet material 15, be formed at the contact skin side surface of end face sheet material 10.This causes being formed with recess in the whole region of first area and second area.On the other hand, in the situation that not meeting formula 2, exist the situation that is formed at whole end face sheet material under the state that end face sheet material 10 and the second sheet material 15 are not configured in compression unit 31 and recess does not configure along compression unit 31 at end face sheet material 10 and the second sheet material 15.
Note, absorbent commodity can be constructed such that the degree of depth of compression unit 31 between first area R1 and second area R2 is identical, or for example makes to be greater than in the degree of depth that disposes the compression unit forming in the first area R1 of end face sheet material and the second sheet material 15 degree of depth of the compression unit in second area.
Absorbent commodity is constructed such that the width that is represented as Ty and recess in the degree of depth of the recess of the width centre of each recess is represented as and Wy, meets formula 3.
(formula 3) Ty >=Wy/2
Note, the absorbent commodity in present embodiment is constructed such that the width that is represented as Ty11 and the first recess in the degree of depth of the width centre of each the first recess is represented as and Wy11, meets formula 3-1.
(formula 3-1) Ty11 >=(Wy11)/2
In addition, the absorbent commodity in present embodiment is constructed such that the width that is represented as Ty12 and the second recess in the degree of depth of the width centre of each the second recess is represented as and Wy12, meets formula 3-2.
(formula 3-2) Ty12 >=(Wy12)/2
In the situation that not meeting formula 3, the end face sheet material that forms recess has mild gradient.So the area contacting with body fluid in single recess is little, and each recess occupies larger area in end face sheet material.As a result, can not fully guarantee the area that contacts with body fluid, thereby cause obtaining the risk of the ability that sucks body fluid.But in the situation that meeting above-mentioned formula 3, the end face sheet material that forms recess has high gradient, and each recess occupies compared with small size in end face sheet material.So, can be by guaranteeing that the area contacting with body fluid guarantees to suck the ability of body fluid.
Note, in the situation that meeting formula 3, as shown in Fig. 4 (b), the groove starting position that is represented as the width both ends place of P, compression unit in the bottom surface of compression unit is expressed as Q and S and straight line PQ and is represented as φ with the angle that straight line PS intersects, formula φ≤90 ° establishment.
Expect, end face sheet material 10 is by by making spun-bonded non-woven fabrics layer and melt spraying non-woven fabrics, the folded duplexer forming, point glue the either party's formation in (point-bond) non-woven fabrics and spun-bonded non-woven fabrics layer by layer.For example, compared with having the hot-wind nonwoven cloth of same basis weight, such non-woven fabrics or duplexer have the bending rigidity lower than hot-wind nonwoven cloth, and more easily configure along the compression unit 31 of absorber 30.So recess can easily be formed at end face sheet material.
Noting, is SMS (spun-bonded/melt-blown/spunbond) non-woven fabrics according to the end face sheet material 10 of present embodiment.SMS non-woven fabrics is by configure the duplexer that meltblown layer forms between two spunbond layers.
In order to make spun-bonded non-woven fabrics layer, make from spinneret (spinning nozzle) resin out cool down and the fiber of directly collecting resin to form non-woven fabrics, wherein fiber is long and has relatively large diameter.On the other hand, in order to make melt-blown nonwoven layer of cloth, utilize hot-air to make trail and collect the fiber of resin from spinneret resin out, wherein fiber is long and has minor diameter.By stacked to form the first nonwoven layer to two spun-bonded non-woven fabrics layers and meltblown layer, thereby can improve durability.
Expect, the second sheet material 15 is made up of hot-wind nonwoven cloth.Compared with bonded non-woven fabrics etc., hot-wind nonwoven cloth has larger capacity, thereby easily sucks and keep body fluid.Form the second sheet material and guaranteed to suck ability and the hold facility of body fluid by hot-wind nonwoven cloth.Due to its low-density, the capacity of hot-wind nonwoven cloth layer and buffer capacity are all higher.Compared with melt-blown nonwoven layer of cloth, hot-wind nonwoven cloth layer has larger capacity, thereby has guaranteed to suck the ability of liquid.
Expect, in the plane graph shown in Fig. 1 the area of the second sheet material 15 be absorber 30 area 20%～40%.For example, in the case of the area of the second sheet material be greater than absorber area 40%, the region that is provided with the second recess diminishes, thereby can not guarantee wiping ability, causes obtaining the risk to the abundant inhibition contacting between feces leakage and skin and feces.On the other hand, in the case of the area of the second sheet material 15 be less than absorber area 20%, the second sheet material 15 can not promptly suck body fluid, thereby causes the diffusion of body fluid on end face sheet material 10 to increase, and causes causing the risk of skin eruption.
What expect is, the second sheet material 15 comprises the scavenge port contact area of body fluid that contact is discharged from wearer, and central authorities on the longitudinally of the second sheet material be arranged on central authorities from the longitudinally of absorbent commodity towards wearer's abdominal part lateral deviation from position.By the second sheet material is configured in to the region of urinating, can promptly suck body fluid and scatter on end face sheet material to prevent liquid.More expect, the second sheet material be configured such that the second sheet material 15 area 55% or be positioned at more greatly the front side of the fore-and-aft direction central authorities of absorbent commodity.
In addition, expectation, the outer end on width of the second sheet material 15 is configured in the width outside of the inner end of side sheet material 60.By making the second sheet material 15 be configured in the width outside of the inner end of side sheet material 60, can be along crotch positioning leak-proof wall, and the second sheet material can be configured to wearer's scavenge port face-to-face.
For example, outer end on the width of the second sheet material 15 is positioned at the inner end of side sheet material 60 in the case of the inner side of width, in the time wearing absorbent commodity, the second sheet material 15 leaves original position, causes the second sheet material 15 not to be configured to and the aspectant situation of scavenge port.If it is face-to-face that the second sheet material 15 is not configured to wearer's scavenge port, exist the risk of the ability reduction that sucks liquid.But by the outer end on the width of the second sheet material 15 being arranged on to the width outside of inner end of side sheet material 60, the second sheet material 15 can be configured to wearer's scavenge port face-to-face, thereby can guarantee to suck the ability of body fluid.
Preferably, in the plane graph of Fig. 1, be 10%～25% as the area of compression unit 31 and the compressing area ratio of the ratio of the area of absorber 30.For example, at compressing area than being 25% or larger in the situation that, not only because the rigidity of compression unit causes for wearer texture deteriorated, and cause the area of even surface to reduce owing to not forming recess, thereby make to be difficult to form recess along compression unit on end face sheet material 10.On the other hand, at compressing area, than be less than 10% in the situation that, the area of the recess forming on end face sheet material 10 reduces, thereby makes to be difficult to show diffusivity and liquid-maintaining capacity.
The configuration pattern of compression unit 31 is restriction especially not.But, preferably, on the throughput direction MD of the configuration pattern of compression unit 31 in the manufacture process of absorbent commodity, be continuous, along with the orthogonal crisscross CD of throughput direction, multiple compression units being set abreast.Particularly, for example, as example, can provide the configuration pattern shown in Fig. 5.
The configuration pattern of the compression unit 311 shown in Fig. 5 (a) has amplitude on crisscross, and has the multiple compression units 311 of concaveconvex shape that extend along throughput direction MD and configure abreast.The concaveconvex shape extending along throughput direction MD balanced configuration at interval on crisscross.The compressing area ratio of compression unit 31 is 14.6%.
The configuration pattern of the compression unit 312 shown in Fig. 5 (b) is configured to clathrate.The compressing area ratio of compression unit 312 is 15.5%.The configuration pattern of the compression unit 313 shown in Fig. 5 (c) is configured to the form of straight lines of extending along throughput direction MD, and compartment of terrain forms multiple compression units 313 on crisscross CD.The compressing area ratio of compression unit 313 is 11.1%.
As shown in Fig. 5 (a) to Fig. 5 (c), the configuration pattern of the compression unit that compression unit configures continuously along throughput direction MD has been realized the structure of being convenient to the absorber that body fluid spreads on throughput direction MD along compression unit.Particularly, body fluid spreads in absorber due to capillarity.This capillarity and density are proportional, and wherein density is higher, are more convenient to liquid diffusion.Compared with there is no the part of compression unit, the part that is provided with compression unit has higher density, thereby is easier to the diffusion of body fluid.So the configuration pattern of the compression unit that compression unit configures continuously along throughput direction MD is convenient to body fluid and is spread along throughput direction MD in absorber.For example, in the case of the compression unit along the discontinuous breakpoint form of throughput direction MD, being diffused on throughput direction of body fluid is discontinuous, thereby causes the risk that can not effectively spread on throughput direction.But, on throughput direction, form continuously compression unit and body fluid can be spread on throughput direction and can not make capillarity weaken.
Compression unit with from interior direction outward the recessed mode of direction form, make to be positioned in the outer direction position of low-density part (not forming the part of compression unit) and the skin surface away from wearer in absorber middle-high density part (being formed with the part of compression unit).Therefore, body fluid can spread along throughput direction in the position away from skin surface.
For example, if body fluid is stayed drippage position and do not spread along throughput direction MD or crisscross CD, exist the risk that while applying body pressure (body pressure), body fluid flows backwards.But, by body fluid is spread on throughput direction, can make body fluid be dispersed to drippage position around from drippage position, thereby the liquid while preventing to apply body pressure flow backwards.In addition, in the absorber with superabsorbent polymer, stay drippage position in the situation that at body fluid, exist the risk that causes the gel blockage (gel-blocking) that the passage of body fluid is plugged due to the expansion of superabsorbent polymer.If generation gel blockage, body fluid can not see through smoothly, thereby causes effectively using the risk of the absorbability of absorber.But, by making diffusion of body fluids, can prevent from, in drippage position, gel blockage occurs, thereby realize effective use of the absorbability of absorber.
For compression unit or the compression unit of lattice shape as shown in Figure 1 of shape on crisscross CD as shown in Fig. 5 (a) with amplitude, these compression units are discontinuous on throughput direction, thereby are formed with multiple jogs along throughput direction.This has improved blocking ability and wiping ability to liquid.
The absorbent commodity of structure can be manufactured by the following method as mentioned above, and for example, method comprises: by the stacked absorbent material step with formation absorber; In absorber, form the step of compression unit 31; With the step that configures the second sheet material and end face sheet material on absorber being provided with compression unit 31.For other steps, can apply traditional manufacture method.
On the absorber for being formed with compression unit 31, configure the step of the second sheet material and end face sheet material, the second sheet material and end face sheet material can be engaged to respectively to absorber, or under the state that can fit each other at the second sheet material and end face sheet material, the two be engaged to absorber.For example, in the situation that respectively end face sheet material and the second sheet material being engaged to absorber, join to the rigidity such as end face sheet material than on end face sheet material and the high absorber of the second sheet material, make easily to pressurize in the time that end face sheet material etc. is engaged to absorber, this allows the easy and compression unit close contacts such as end face sheet material.This makes it possible to easily on end face sheet material etc., form compression unit under end face sheet material etc. is engaged to the state of absorber.
On the other hand, in the case of end face sheet material etc. being engaged to absorber after fitting each other thering is the end face sheet material of relatively low rigidity and the second sheet material, in the time that end face sheet material and the second sheet material are fitted each other, be difficult to pressurization, thereby cause the risk of floating (float) between end face sheet material and the second sheet material.If occur floating between end face sheet material and the second sheet material, end face sheet material is difficult to and compression unit close contact, thereby causes on end face sheet material etc., forming regularly the risk of recess.
For between end face sheet material and the second sheet material engage and the second sheet material and absorber between engage, can utilize such as the binding agent of hotmelt etc. and engage.Coated pattern is not particularly limited.For example, omega (omega) pattern can be provided as the example of the coated pattern of end face sheet material, coating machine (coater) pattern or heavy curtain pattern can be provided as the example of the coated pattern of the second sheet material.
In order to form recess on end face sheet material etc., expectation, the second sheet material and the absorber that make to have relatively large capacity are fitted in intimate contact.Because coating machine coating is a kind of coating method contacting with material, so can be coated with under the state of material being given to large coating width and little dry edge (dry edge).Therefore, the second sheet material can be fitted tightly with absorber with coating machine pattern application the second sheet material, thereby can on whole end face sheet material etc., form recess.Even if adopt heavy curtain pattern, also can be coated with on whole the second sheet material, thereby the second sheet material can be fitted in intimate contact with absorber.On the other hand, in the time that coating is the noncontact type such as spin coating (spiral coating) etc., for binding agent is not reached outside material, must there is large dry edge.So, be easy to a little less than when laminating occurs floating and engages also, thereby cause obtaining the risk of the enough engaging forces to absorber.
So far by above embodiment, the present invention is disclosed.But, should be appreciated that the statement and the accompanying drawing that form a part of this disclosure do not limit the present invention.From the disclosure, to those skilled in the art, multiple substituting embodiment, embodiment and applicable technology are apparent.
For example, the second sheet material of absorbent commodity can be painted by coloring material.The second sheet material that has stood painted processing is convenient to understand the position of the second sheet material in the time wearing absorbent commodity, makes it possible to easily the second sheet material is configured to scavenge port face-to-face.In addition the second sheet material that, has stood painted processing has increased the ability of covering up.Therefore, it is not too obvious that the color of the body fluid of absorbent body becomes, thereby reduced the discomfort of wearer to body fluid color.
[embodiment]
As embodiment, to having carried out depth survey according to the recess in the contact skin side surface of the absorbent commodity of present embodiment and compression unit.Particularly, measured by the following method the degree of depth of the degree of depth, the degree of depth of the second recess and the compression unit of absorber of the first recess.
(depth measurement method)
Use the high-accurate outline shape measure system (comprising high accuracy platform: KS-1100) manufactured by KEYENCE company and high-speed high accuracy CCD laser displacement gauge (comprise controller: LK-G3000V external member, sensor head: LK-G30) as three-dimensional coordinate measurement device.
The ventricumbent state of the table of packaging sheet side is configured in absorbent commodity to be measured on horizontal plane in addition, and under this condition, the profile that is set to this lip-deep rough state in the cross section along crisscross intercepting is made to record.In the case of the width both ends of the part that is provided with each concave shape are set as to summit and the bottom surface of each concave shape (bottom surface of each recess and the bottom surface of each compression unit) are set as the end point of each recess, calculate the degree of depth from the difference between summit and end point.
< measuring condition >
High accuracy platform: KS-1100
Measuring range: 40000 μ m × 40000 μ m
Measure pitch: 50 μ m
Translational speed: 7500 μ m/sec
(gage outfit: LK-G3000V)
Measurement pattern: measure body
Pattern is set: diffuse-reflectance
Filtering: average four times
Sampling period: 200 μ s
(measurement result)
Measurement result is illustrated in table 1.
[table 1]
| ? | Summit | End point | The degree of depth |
| Compression unit | 5865.25 | 2731.87 | 3133.38 |
| The first recess | 7112.17 | 5832.86 | 1279.31 |
| The second recess | 6186.34 | 4153.06 | 2033.28 |
Unit: μ m
While comparing between the degree of depth of the first recess and the degree of depth of the second recess, the first recess is less.Result is, because configured the second sheet material, so the thickness of the first recess is little.
Can the present invention be revised and be changed in the case of not deviating from the main idea of the present invention that is defined by the claims and scope.So this description is intended to illustrate and explanation the present invention, and does not mean that any limitation of the invention.
description of reference numerals
1 ... absorbent commodity, 1A ... the contact skin side surface of absorbent commodity, 10 ... end face sheet material, 11 ... the first recess, 12 ... the second recess, 15 ... the second sheet material, 20 ... outer packaging sheet, 21 ... back side non-woven fabrics, 22 ... back side film, 30 ... absorber, 30A ... contact skin side surface, 31 ... compression unit, 35 ... lower limb hole elastic component, 41 ... fixed component, 41A ... hook portion, 41B ... locking plate, 60 ... side sheet material, 61 ... leakproof elastic component, L ... fore-and-aft direction, W ... width, T1 ... interior direction, T2 ... outer direction, MD ... throughput direction, S1 ... Attacking Midfielder's region, S2 ... low back region, S3 ... crotch region, R1 ... first area, R2 ... second area
Claims (10)
1. an absorbent commodity, it comprises:
The end face sheet material of liquid permeability;
The outer packaging sheet of non-liquid permeability;
Be arranged on the absorber between described end face sheet material and described outer packaging sheet; With
Be arranged between described end face sheet material and described absorber and cover the second sheet material of a part for described absorber, wherein,
Described absorbent commodity comprises:
First area, in this first area, the contact skin side surface of described absorber and described the second sheet material contact with each other; With
Second area, in this second area, described contact skin side surface and the described end face sheet material of described absorber contact with each other;
Described absorber is provided with by the non-contact skin side of the contact skin side direction through-thickness from described absorber and compresses multiple compression units that described absorber forms;
By configuring described end face sheet material and described the second sheet material along the described contact skin side surface of described absorber, the contact skin side surface of described absorbent commodity is provided with along multiple recesses of the described compression unit of described absorber; And
The degree of depth of the described recess in described first area is less than the degree of depth of the described recess in described second area.
2. absorbent commodity according to claim 1, is characterized in that, the thickness that the width that described absorbent commodity is formed at the described compression unit of described absorber is represented as Wx and described end face sheet material is represented as and in the situation of Ta, meets formula 1:
(formula 1) Wx > (Ta) × 2.
3. absorbent commodity according to claim 2, is characterized in that, the thickness that described absorbent commodity is formed at described the second sheet material is represented as and in the situation of Tb, meets formula 2:
(formula 2) Wx > (Ta+Tb) × 2.
4. according to the absorbent commodity described in any one in claims 1 to 3, it is characterized in that, the width that the degree of depth that described absorbent commodity is formed at the described recess of the width centre of recess described in each in described first area is represented as Ty and described recess is represented as and in the situation of Wy, meets formula 3:
(formula 3) Ty >=Wy/2.
5. according to the absorbent commodity described in any one in claim 1 to 4, it is characterized in that,
Described compression unit forms continuously with linearity; And
Compressing area ratio as the ratio of the area of described compression unit and the area of described absorber is 10%～25%.
6. according to the absorbent commodity described in any one in claim 1 to 5, it is characterized in that, described end face sheet material is by by making spun-bonded non-woven fabrics layer and melt spraying non-woven fabrics, the folded duplexer forming, at least one party that puts in bonded non-woven fabrics and spun-bonded non-woven fabrics form layer by layer.
7. according to the absorbent commodity described in any one in claim 1 to 6, it is characterized in that, described the second sheet material is made up of hot-wind nonwoven cloth.
8. according to the absorbent commodity described in any one in claim 1 to 7, it is characterized in that,
Described the second sheet material comprises the scavenge port contact area of contact from the body fluid of wearer's discharge; And
Central authorities on the longitudinally of described the second sheet material be arranged on central authorities from the longitudinally of described absorbent commodity towards wearer's abdominal part lateral deviation from position.
9. according to the absorbent commodity described in any one in claim 1 to 8, it is characterized in that,
In the side near wearer than described end face sheet material, be provided with a pair of side sheet material and retractility member, described a pair of side sheet material covers the both sides on the width of described absorber, and described retractility member is configured in inner end on the described width of described side sheet material and flexible on longitudinally; And
Outer end on the described width of described the second sheet material is arranged on the described width outside of the inner end of described side sheet material.
10. according to the absorbent commodity described in any one in claim 1 to 9, it is characterized in that, described the second sheet material is painted by coloring material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-289357 | 2011-12-28 | ||
| JP2011289357A JP5904790B2 (en) | 2011-12-28 | 2011-12-28 | Absorbent articles |
| PCT/JP2012/079641 WO2013099463A1 (en) | 2011-12-28 | 2012-11-15 | Absorptive article |
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| Publication Number | Publication Date |
|---|---|
| CN104023687A true CN104023687A (en) | 2014-09-03 |
| CN104023687B CN104023687B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280064864.9A Active CN104023687B (en) | 2011-12-28 | 2012-11-15 | Absorbent commodity |
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| Country | Link |
|---|---|
| JP (1) | JP5904790B2 (en) |
| CN (1) | CN104023687B (en) |
| TW (1) | TWI555520B (en) |
| WO (1) | WO2013099463A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106999311A (en) * | 2014-12-10 | 2017-08-01 | 王子控股株式会社 | Absorbent commodity |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6087233B2 (en) * | 2013-07-12 | 2017-03-01 | ユニ・チャーム株式会社 | Disposable diapers |
| JP6087234B2 (en) * | 2013-07-12 | 2017-03-01 | ユニ・チャーム株式会社 | Disposable diapers |
| CA2961190A1 (en) | 2014-09-12 | 2016-03-17 | The Procter & Gamble Company | Absorbent articles with channel configurations |
| MX2017003317A (en) | 2014-09-12 | 2017-11-22 | Procter & Gamble | Method of making nonwoven material having discrete three-dimensional deformations with wide base openings that are tip bonded to additional layer. |
| US10064766B2 (en) | 2014-09-12 | 2018-09-04 | The Procter & Gamble Company | Nonwoven material having discrete three-dimensional deformations that are configured to collapse in a controlled manner |
| CA2959172A1 (en) | 2014-09-12 | 2016-03-17 | The Procter & Gamble Company | Nonwoven material having discrete three-dimensional deformations with wide base openings and specific fiber concentrations |
| JP6485682B2 (en) * | 2014-11-21 | 2019-03-20 | 日本製紙クレシア株式会社 | Absorbent articles |
| MY183474A (en) * | 2014-12-10 | 2021-02-19 | Oji Holdings Corp | Absorbent article |
| JP6387898B2 (en) * | 2015-05-15 | 2018-09-12 | 王子ホールディングス株式会社 | Absorbent articles |
| EP3352718B1 (en) * | 2015-09-22 | 2021-03-03 | The Procter and Gamble Company | Absorbent articles having curved channels |
| EP3216434A1 (en) | 2016-03-08 | 2017-09-13 | The Procter and Gamble Company | Absorbent article comprising a topsheet/acquisition web laminate |
| JP6567713B1 (en) * | 2018-03-05 | 2019-08-28 | 大王製紙株式会社 | Absorbent articles |
| EP3804679A4 (en) * | 2018-06-01 | 2022-03-16 | Kao Corporation | Absorbent article |
| JP6692954B2 (en) * | 2018-06-01 | 2020-05-13 | 花王株式会社 | Absorbent article |
| JP2021016710A (en) * | 2019-07-23 | 2021-02-15 | カミ商事株式会社 | Absorbent article |
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|---|---|---|---|---|
| US5451442A (en) * | 1991-12-17 | 1995-09-19 | Paragon Trade Brands, Inc. | Absorbent panel structure for a disposable garment |
| JP2004208919A (en) * | 2002-12-27 | 2004-07-29 | Uni Charm Corp | Absorbent article equipped with compressed groove and flexible part |
| US20040176734A1 (en) * | 2003-03-04 | 2004-09-09 | Rasmussen Shelley R. | Perimeter embossing in an absorbent article |
| WO2011136364A1 (en) * | 2010-04-30 | 2011-11-03 | ユニ・チャーム株式会社 | Absorbent article |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0781537A1 (en) * | 1995-12-27 | 1997-07-02 | The Procter & Gamble Company | Disposable absorbent article |
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2011
- 2011-12-28 JP JP2011289357A patent/JP5904790B2/en active Active
-
2012
- 2012-11-15 WO PCT/JP2012/079641 patent/WO2013099463A1/en active Application Filing
- 2012-11-15 CN CN201280064864.9A patent/CN104023687B/en active Active
- 2012-12-27 TW TW101150549A patent/TWI555520B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5451442A (en) * | 1991-12-17 | 1995-09-19 | Paragon Trade Brands, Inc. | Absorbent panel structure for a disposable garment |
| JP2004208919A (en) * | 2002-12-27 | 2004-07-29 | Uni Charm Corp | Absorbent article equipped with compressed groove and flexible part |
| US20040176734A1 (en) * | 2003-03-04 | 2004-09-09 | Rasmussen Shelley R. | Perimeter embossing in an absorbent article |
| WO2011136364A1 (en) * | 2010-04-30 | 2011-11-03 | ユニ・チャーム株式会社 | Absorbent article |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106999311A (en) * | 2014-12-10 | 2017-08-01 | 王子控股株式会社 | Absorbent commodity |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013135824A (en) | 2013-07-11 |
| TWI555520B (en) | 2016-11-01 |
| JP5904790B2 (en) | 2016-04-20 |
| TW201343152A (en) | 2013-11-01 |
| CN104023687B (en) | 2015-11-25 |
| WO2013099463A1 (en) | 2013-07-04 |
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