CN1694668A - Absorbent article with liquid acquisition layer - Google Patents
Absorbent article with liquid acquisition layer Download PDFInfo
- Publication number
- CN1694668A CN1694668A CN 200380100814 CN200380100814A CN1694668A CN 1694668 A CN1694668 A CN 1694668A CN 200380100814 CN200380100814 CN 200380100814 CN 200380100814 A CN200380100814 A CN 200380100814A CN 1694668 A CN1694668 A CN 1694668A
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- CN
- China
- Prior art keywords
- liquid
- mentioned
- layer
- recess
- top flat
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 263
- 230000002745 absorbent Effects 0.000 title claims abstract description 32
- 239000002250 absorbent Substances 0.000 title claims abstract description 32
- 238000010521 absorption reaction Methods 0.000 claims description 106
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 230000035699 permeability Effects 0.000 claims description 17
- 239000010410 layer Substances 0.000 description 229
- 230000009102 absorption Effects 0.000 description 102
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- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000012209 synthetic fiber Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000004078 waterproofing Methods 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
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- 210000002700 urine Anatomy 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 210000001217 buttock Anatomy 0.000 description 2
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 229920002955 Art silk Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 206010040007 Sense of oppression Diseases 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
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- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical compound C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
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- 230000014759 maintenance of location Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 210000004999 sex organ Anatomy 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
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Images
Classifications
-
- 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
- A61F13/45—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 shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
- A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
- A61F13/4756—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
-
- 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
- A61F13/537—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F13/53713—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the vertical direction
-
- 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
- A61F13/537—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53743—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers
- A61F13/53747—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers the layer is facing the topsheet
-
- 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
- A61F13/537—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F2013/53765—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry
- A61F2013/53778—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry with grooves
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
An absorbent article with a liquid arresting layer (6) interposed between a topsheet (3) and a bottomsheet (2). The liquid arresting layer (6) is in the form of a water-absorbable sheet (8) three-dimensionally deformed to form longitudinal ribs (6a) raised toward the surface sheet (3) and extending longitudinally of the article in parallel to each other, and transverse ribs (6b) raised toward the surface sheet (3) and extending transversely of the article. The transverse ribs (6b) are disposed at longitudinally spaced intervals and serve to fasten adjacent longitudinal ribs (6a), with a plurality of recesses (6c) surrounded by the longitudinal ribs (6a) and transverse ribs (6b). At least the longitudinal ribs (6a) contact the upper member, and the bottoms (6d) of the recesses (6c) contact the liquid absorbing layer (4).
Description
The application advocates following priority and proposes, and this priority is according to the Japanese patent application of December in 2002 application on the 5th 2002-354186 number.This illustrates that a described part quotes the described content of above-mentioned Japanese patent application.
Technical field
The present invention relates to be suitable for to absorb the absorbent commodity of the menses that excrete from female sexual organ etc., particularly relate to and be set between top flat and the liquid absorption layer, absorb the liquid of discharging to above-mentioned liquid absorption layer behind the liquid and obtain layer.
Background technology
Absorption from the general structure of the absorbent commodity of the excretory menses of female sexual organ is, has the top flat of permeability for liquids, the egative film and the liquid absorption layer of liquid impermeability, and top flat is positioned at its skin-side surface; Egative film is positioned at garment side surface; Liquid absorption layer is between above-mentioned top flat and egative film, and usually, above-mentioned egative film is used with the state on the crotch cloth that is bonded in underwear by the pressure-sensitive adhesive linkage.
This absorbent commodity is, if menses are drained on top flat for the moment in a large number, menses then remain on the top flat for a long time, make between the thigh root moist feeling is arranged, and makes user that uncomfortable sensation be arranged.At this, the following improved article that carried out are arranged, that is, and when a large amount of liquid is drained for the moment, with the diffusion below top flat of this liquid, remain on top flat below.
Open in the flat 6-38998 communique (patent documentation 1) the spy, put down in writing the sanitary napkin that the liquid conveyer belt is set between top flat and egative film.
The aforesaid liquid conveyer belt is to form a plurality of lattices on non-woven fabrics.This lattice is to compress the embossed pattern of the high fibre density of formation portion and compress the embossed pattern that above-mentioned non-woven fabrics forms film unit from the two sides from a non-woven fabrics in the face of specific thickness, and these two kinds of embossed patterns are arranged by vertical (length direction) towards sanitary napkin.This liquid conveyer belt utilize the restriction of above-mentioned film unit permeated top flat menses move, make its above-mentioned high fibre density portion that weaves throngh, make like this menses to longitudinal diffusion, prevent that liquid residue is on top flat.
And, open in the 2000-140015 communique (patent documentation 2) the spy, record and make the disposable diaper of permeability for liquids thin slice between top flat and liquid absorption layer.
The aforesaid liquid osmotic flake is that non-woven fabrics or paper are carried out three-D changeable shape, has a plurality of recesses of the protuberance formation of extending by mesh-shape.This disposable diaper is when a large amount of liquid is drained for the moment, temporarily to keep liquid by the recess that utilizes the aforesaid liquid osmotic flake, prevents that liquid is moving along the surface current of diaper.
Though the liquid conveyer belt of putting down in writing in the above-mentioned patent documentation may be able to make the liquid that sees through the surface to longitudinal diffusion, but because the liquid-maintaining capacity and the liquid infiltration ability of liquid conveyer belt itself are low, when a large amount of menses were drained, the liquid conveyer belt was saturated rapidly, be trapped in easily above.That is, though this liquid conveyer belt is to form embossed pattern on melt spraying non-woven fabrics etc., this melt spraying non-woven fabrics still is more smooth state after carrying out embossing and handling, and therefore, can not keep being drained at partial liquid in a large number.And,, therefore, almost liquid can not be remained in the recess because the volume of the recess of formation embossed pattern is very little on above-mentioned non-woven fabrics.The not only own density height of melt spraying non-woven fabrics still more, and because above-mentioned film unit blocks the infiltration of liquid, therefore, the liquid infiltration ability of melt spraying non-woven fabrics is low.
If the permeability for liquids thin slice of record remains in leg-of-mutton recess with urine in patent documentation 2, suppress planar diffusion.But owing to utilize cancellous protuberance to suppress the diffusion of liquid, therefore urine makes above-mentioned recess saturated rapidly.Therefore, this permeability for liquids thin slice is used under the situation of sanitary napkin, is trapped in easily in this recess than the high menses of urine viscosity.In addition, in patent documentation 2, aforesaid liquid osmotic flake's ideal example is to form with paper, but, when this permeability for liquids thin slice that forms with paper is used for sanitary napkin, owing to pressure from thigh root, recess is out of shape immediately, in addition, when the strength of malposition worked to sanitary napkin, the permeability for liquids thin slice was damaged easily.
The present invention finishes in view of above-mentioned existing problem.Therefore, the purpose of this invention is to provide following absorbent commodity, when promptly a large amount of liquid is drained, can temporarily keep this liquid, and can shift unobstructedly, reduce the delay of liquid on top flat to liquid absorption layer.
Summary of the invention
The invention provides the top flat that has in the permeability for liquids of its skin-side surface, at the egative film of garment side surface and the absorbent commodity of the liquid absorption layer between above-mentioned top flat and egative film, liquid obtain layer be set at the aforesaid liquid absorbed layer on the surface of above-mentioned top flat, aforesaid liquid obtains the state that layer is maintained at three-D changeable shape, it is the parts that the water absorption thin slice is out of shape three-dimensionally that aforesaid liquid obtains layer, have vertical rib and horizontal rib, vertical rib towards above-mentioned top flat be convex and with vertically the extending in parallel to each other of article; Horizontal rib is convex and to the horizontal expansion of article towards above-mentioned top flat, above-mentioned horizontal rib is vertically being left the compartment of terrain setting, and connect between the vertical rib of adjacency, a plurality of recesses that formation is surrounded by above-mentioned vertical rib and horizontal rib, above-mentioned at least vertical rib and top parts join, the bottom and the aforesaid liquid absorbed layer of above-mentioned recess join.
In absorbent commodity of the present invention, though seeing through the menses of top flat is temporarily remained in the recess that is formed on liquid acquisition layer, but make water absorption sheet three-D changeable shape, its thickness is increased because liquid obtains layer, therefore, the situation that forms embossed pattern with the thickness that does not increase thin slice on non-woven fabrics is compared, can strengthen the spatial volume of each recess, many menses temporarily can be remained in the recess.And owing to join by bottom and the liquid absorption layer that makes the water absorption sheet be out of shape the recess that obtains, therefore, the menses in the recess can see through the water absorption sheet and shift to liquid absorption layer rapidly, can prevent that menses from remaining in the recess for a long time.And owing to indulge the longitudinal extension of rib to article, the top parts of this vertical rib and top flat or liquid-permeable layers etc. join, and therefore, the liquid quilt that is maintained at recess is suppressed to horizontal diffusion easily towards longitudinal guide.Therefore, menses do not leak and permeate to liquid absorption layer easily to horizontal generation.
Liquid of the present invention obtains layer and can constitute, and is lower than from the bottom of above-mentioned recess to the height dimension at the top of above-mentioned vertical rib from the bottom of above-mentioned recess to the height dimension at the top of above-mentioned horizontal rib.
According to such formation, even a large amount of menses are excreted in the recess for the moment, these menses can be crossed the recess transfer that low horizontal rib is arranged along the longitudinal, therefore, prevent easily to horizontal diffusion (promptly crossing the diffusion of vertical rib).
For this reason, each above-mentioned recess is preferably vertically than the depth of horizontal length.
In addition, in the present invention, the spatial volume of a recess is 8～80mm preferably
3
If volume in above-mentioned scope, obtains between the layer up to permeation liquid as the menses of high viscosity body fluid, recess can keep the menses of q.s.Even therefore a lot of at short notice menses are drained, these menses also seldom overflow from recess, can prevent that menses from refluxing to top flat, and can prevent that menses are to horizontal diffusion.
In the present invention, the concentrating of the tensile stress by above-mentioned water absorption sheet during by three-D changeable shape, aforesaid liquid obtains layer can become the acquisition layer with low-density part of being expanded at interfibrous interval.
Reduce if obtain last minute fibre density of layer, the menses that temporarily remain in the recess are shifted to liquid absorption layer rapidly at aforesaid liquid.
In addition, in the present invention, can make aforesaid liquid obtain layer and form a par, this par has than the wide width of above-mentioned vertical rib and to vertically extending continuously.
Above-mentioned par is the tensile force when not being subjected to forming three-dimensional shape or the zone of compression stress, and intensity does not reduce.In addition, the fibre density still sheeting with original is the same, and specific density is low mutually with vertical rib etc.Therefore, during the assembling absorbent commodity, can keep this par, liquid is obtained the supply of course assembling procedure.In addition, compare low density par to longitudinal extension owing to have with vertical rib, therefore, this par can be used as the anti-leukorrhagia stopping of diffusion and plays a role, and the anti-leukorrhagia stopping of this diffusion prevents that menses are to horizontal diffusion.Though this par can be set at liquid and obtain on any position of layer, in order to bring into play the effect as the anti-leukorrhagia stopping of above-mentioned diffusion effectively, above-mentioned par is preferably formed in the left and right sides portion that liquid obtains layer.In addition, the par also can be arranged on the end, front and back that liquid obtains layer.
In the present invention, aforesaid liquid acquisition layer also can be overlapping many water absorption sheets, be carried out three-D changeable shape together.Also can be bonding with carrying out part between these water absorption sheets.
Obtain layer if constitute liquid, can improve weight per unit area, improve the absorption hold facility of liquid, and can improve the intensity of vertical rib and horizontal rib with many water absorption sheets.In addition, reduce and crackle though the recess that three-D changeable shape obtains layer at liquid produces density, if this wall portion is a multiple structure, then such density reduces and crackle not only is created in a place, can prevent that the intensity of above-mentioned wall portion from extremely reducing.Therefore, even absorbent commodity becomes moisture state, also can keep the shape of recess always.
In addition, in the present invention, when vertically measuring, the preferably every 25mm width of stretching breaking strength when aforesaid liquid obtains layer dry is more than or equal to 2.5N.Obtain above-mentioned intensity of layer and suitable water absorption in order to pay liquid, the most handy cellulosic fibre of water absorption sheet and synthetic resin form.If have above-mentioned intensity, even be subjected to pressure, also keep three-dimensional shape easily from the user health, can keep the spatial volume of recess for a long time.
Description of drawings
Can understand the present invention in further detail by following detailed description and the accompanying drawing that is suitable for embodiment of the present invention, not limit the present invention, just in order to illustrate and to understand.In the accompanying drawings,
Fig. 1 is the vertical view of sanitary napkin of the embodiment of expression absorbent commodity of the present invention.
Fig. 2 is the cutaway view of II-II line that expression sanitary napkin shown in Figure 1 is placed on the crotch cloth state of underwear.
Fig. 3 is the perforate state of express liquid permeability hole and the expansion cutaway view that liquid obtains the state that is provided with of layer.
Fig. 4 is the axonometric chart that liquid obtains layer.
Fig. 5 A, 5B are the cutaway views of the V-V line of Fig. 4, and Fig. 5 A is that single layer structure, Fig. 5 B are multiple structures.
Fig. 6 is the cutaway view of the VI-VI line of Fig. 4.
Fig. 7 is in order to make liquid obtain the axonometric chart that layer becomes spatial patrix.
Fig. 8 is in order to make liquid obtain the axonometric chart that layer becomes spatial counterdie.
Fig. 9 is the cutaway view of the IX-IX line of Fig. 7.
Figure 10 is that expression obtains the cutaway view that layer carries out the stereo shaping state with upper die and lower die to liquid.
Figure 11 is the vertical view of expression as the sanitary napkin of the depth of the absorbent commodity of second embodiment of the present invention.
Figure 12 A is the vertical view that is used for the acrylic panel of pressurizing absorption test, and Figure 12 B is the cutaway view of the above-mentioned pressurizing absorption test of explanation.
The specific embodiment
Following with reference to accompanying drawing, just the present invention is elaborated in ideal embodiment according to the present invention.In the following description, understand the present invention fully, exemplified some concrete details in order to make the reader.But, skilled in the art will recognize that also can form the present invention even without these details.In addition, the present invention is not described in detail with regard to well-known structure for fear of nonsensical indefinite content.
The menses that absorbent commodity conduct of the present invention excretes from the vagina mouth with absorption are that the sanitary napkin of main purpose uses.In addition, in two surfaces of absorbent commodity, will be towards the surface of the thigh root of user as its skin-side surface, no matter whether its outside is installed with clothes on the surface of opposition side, all is expressed as garment side surface.
As used herein longitudinal centre line one speech be meant with absorbent commodity laterally be divided into two, to the line of longitudinal extension.On the one hand, in the first following embodiment, with absorbent commodity vertically be divided into two to the line of horizontal extension as the lateral fiducial line, still, the lateral fiducial line is not limited only to such centrage.For example, as shown in second embodiment, be the absorbent commodity that is suitable for vertical length that women's h.d. uses, be arranged in the absorbent commodity of the place ahead part in flank section, with pass in the use facing to the center longitudinally on the genitals part, to the line of horizontal extension as the lateral fiducial line.
Fig. 1 is first embodiment as absorbent commodity of the present invention, the vertical view of sanitary napkin that its skin-side surface is represented up, Fig. 2 is that expression is installed in the sanitary napkin of Fig. 1 the state on the crotch cloth of underwear, the cutaway view of II-II line (lateral fiducial line), Fig. 3 is the expansion cutaway view of the middle section of the above-mentioned sanitary napkin of expression, Fig. 4 is the axonometric chart that express liquid obtains layer, Fig. 5 A, 5B are expression is blocked Fig. 4 at the V-V line cutaway views, and Fig. 6 is the cutaway view that Fig. 4 is blocked at the VI-VI line.
That sanitary napkin 1 has is equidistant to horizontal expansion from longitudinal centre line Oy-Oy, to the 1a of right side edge portion and the 1b of left side edge portion of longitudinal extension, the 1c of leading edge portion and the rear edge portion 1d that launch equidistant convex curve shape from lateral fiducial line Ox-Ox forwards, backwards.
Above-mentioned right side edge 1a of portion and the 1b of left side edge portion are outstanding to the left and right sides in comprising the scope of specific length longitudinally of lateral fiducial line Ox-Ox, form flank section 1A, 1A with this ledge.
Shown in the cutaway view of Fig. 2, this sanitary napkin 1 has the egative film 2 and the top flat 3 that is emerging in the permeability for liquids of its skin-side surface of the liquid impermeability of the garment side surface of being emerging in.Liquid absorption layer 4 is between above-mentioned egative film 2 and top flat 3.Below above-mentioned top flat 3, be provided with liquid-permeable layers 5, between liquid-permeable layers 5 and aforesaid liquid absorbed layer 4, be provided with liquid and obtain layer 6.
Sanitary napkin 1 top flat 3 and aforesaid liquid absorbed layer 4 at least is carried out pressurized and heating, forms compression groove 10 in its skin-side surface.That is, this compression groove 10 forms by the embossing processing of using heating and rolling.Under aforesaid liquid absorbed layer 4 and top flat 3 eclipsed states, planar heating rolls contact liq absorbed layer 4, have the surface that contact top flat 3 is rolled in the heating of the protuberance of embossed pattern, pressurizes and heats, forms compression groove 10.
Be staggered to form high-density compressed portions and middle density compression unit on above-mentioned compression groove 10, high-density compressed portions is that aforesaid liquid absorbed layer 4 is bonded roughly film like with top flat 3; Though middle density compression unit is not become film like, liquid absorption layer 4 is than the density height in the zone beyond the compression groove 10.Compression groove 10 with this high-density compressed portions and middle density compression unit forms to the groove of egative film 2 sides depression as its skin-side surface of sanitary napkin 1.
As shown in Figure 1, above-mentioned compression groove 10 is divided into each compression groove shown in the symbol 11 to 16.
Launching the inboard compression groove 11,11 of equidistant position formation with the left side to the right from longitudinal centre line Oy-Oy to longitudinal extension.Above-mentioned inboard compression groove 11,11 forms protruding side by towards the circular curve of longitudinal centre line Oy-Oy, its relative spacing narrows down on the part of lateral fiducial line Ox-Ox.Above-mentioned inboard compression groove 11 and inboard compression groove 11 are connected compression groove 12 by the place ahead and are connected compression groove 13 with the rear and are interconnected.It is protruding side quilt curve shapes towards the 1c of leading edge portion that the place ahead connects compression groove 12, and it is that protruding side is by the curve shape towards rear edge portion 1d that the rear connects compression groove 13.
The place ahead prolongs compression groove 14,14 and further extends towards the 1c of leading edge portion from above-mentioned inboard compression groove 11,11 is connected compression groove 12 with above-mentioned the place ahead intersection.This place ahead prolongs compression groove 14,14 and is provided with equidistantly about longitudinal centre line Oy-Oy relatively.In addition, prolongation compression groove 15,15 in rear further extends towards rear edge portion 1d from inboard compression groove 11 is connected compression groove 13 with the rear intersection.This rear prolongs compression groove 15,15 and is provided with equidistantly about longitudinal centre line Oy-Oy relatively.
Above-mentioned inboard compression groove 11,11, the place ahead connect compression groove 12, the rear connects compression groove 13, the place ahead prolongation compression groove 14,14 and rear prolongation compression groove 15,15 and all formed continuously.In addition, connect compression groove 12 by above-mentioned inboard compression groove 11,11, the place ahead and be connected compression groove 13 with the rear, the prescribed limit of its skin-side surface of sanitary napkin 1 is surrounded, and this scope that is surrounded becomes middle section 20.This middle section 20 relative longitudinal centre line Oy-Oy are left-right symmetric shapes, so and relative lateral fiducial line Ox-Ox front and back symmetric shape.
Two outsides are formed with outside compression groove 16,16 about inboard compression groove 11,11.This outside compression groove 16,16 is the center with above-mentioned lateral fiducial line Ox-Ox, before and after being formed on longitudinally on the scope of specific length.Above-mentioned outside compression groove the 16, the 16th with above-mentioned inboard compression groove 11,11 similar curves shapes, keeps certain intervals ground to form with inboard compression groove 11,11.
As shown in Figure 1, aforesaid liquid permeable formation 5 is to vertical elongated band shape, and the 5a of its both sides of the edge portion, 5a do not repeat with inboard compression groove 11,11, are positioned at the inboard of above-mentioned inboard compression groove 11,11.In addition, liquid-permeable layers 5 is crossed the place ahead and is connected compression groove 12 up to the 1c of leading edge portion, and, cross the rear and connect compression groove 13 up to rear edge portion 1d.Therefore, connect compression groove 12 in above-mentioned the place ahead and be connected with the rear on the compression groove 13, above-mentioned top flat 3, liquid-permeable layers 5 and liquid absorption layer 4 are compressed together.
It is rectangles that aforesaid liquid obtains layer 6, and the 6h of both sides of the edge portion, 6h are positioned at from above-mentioned inboard compression groove 11,11 to position that lateral outer side is left near lateral fiducial line Ox-Ox.In addition, the 6i of leading edge portion and rear edge portion 6j are positioned at and are connected compression groove 12 from above-mentioned the place ahead and are connected compression groove 13 with the rear to position that longitudinal medial leaves.Therefore, on the part of above-mentioned inboard compression groove 11,11, above-mentioned top flat 3, liquid obtain layer 6 and liquid absorption layer 4 is compressed together.
On above-mentioned middle section 20, many liquid infiltration hole 25 is arranged regularly to be provided with.As shown in Figure 3, aforesaid liquid permeability hole 25 is perforation top flats 3, forms up to liquid-permeable layers 5 ground, and aforesaid liquid permeability hole 25 preferably connects liquid-permeable layers 5 ground from top flat 3 and forms.And, on the part of the lateral edge portion 5a that leaves liquid- permeable layers 5,5a, only on above-mentioned top flat 3, form liquid infiltration hole 25.
The perforated area of aforesaid liquid permeability hole 25 is 0.2～8mm
2, under the situation as the circle of present embodiment, the diameter in liquid infiltration hole 25 is 0.5～3.2mm.In the heart distance is 1.5～8mm in the adjacent liquid infiltration hole 25.
Above-mentioned top flat 3 and liquid-permeable layers 5 contain the thermoplasticity fiber that can carry out the fusion gummed.Under the superimposed state of top flat 3 and liquid-permeable layers 5, pin or pin by will heating insert, extract to liquid-permeable layers 5 sides from top flat 3, form liquid infiltration hole 25.This moment, the thermoplasticity fiber that contains in the thermoplasticity fiber that contains in the top flat 3 and the liquid-permeable layers 5 was by mutual heat bonding around the inner face in liquid infiltration hole 25 and its.Like this, can keep the hole shape in liquid infiltration hole 25, and, be reinforced around the perforate in liquid infiltration hole 25 by liquid-permeable layers 5.In addition, because top flat 3 and liquid-permeable layers 5 are melted gummed, therefore, there is no need the situation that bonding agent hinders liquid infiltration not to take place with bonding top flat 3 of bonding agent and liquid-permeable layers 5.
Above-mentioned top flat 3 is formed by hot-wind nonwoven cloth.It is the dimethyl ester (PET) that contains titanium oxide that this hot-wind nonwoven cloth uses core, and sheath portion is the compound synthetic fibers of core-sheath-type of polyethylene (PE), forms this fiber is bonding by hot blast, and weight per unit area is 15～60g/m
2About.In addition, constitute most of coated in the above-mentioned composite synthetic fibre of top flat 3 the hydrophilic interfacial agent is arranged, remaining is coated the water proofing property interfacial agent, the fiber that these are mixed, and it is coated that the composite rate of the fiber of water proofing property interfacial agent is arranged is 10～30 quality %.By making top flat 3 contain coated the have fiber of water proofing property interfacial agent, the composite rate of the above-mentioned scope of formation equably, can suppress to be excreted to menses too diffusion in the surface on surface 3, make the main permeation liquid permeability hole 25 of menses, be excreted to liquid absorption layer 4.
But, above-mentioned top flat 3 also can be in the liquid infiltration hole zone beyond 25 make menses towards liquid-permeable layers 5 infiltrations.In order to pay such liquid infiltration function to surface 3, the density of top flat 3 is preferably smaller or equal to 0.12g/cm
3, be limited to 0.025g/cm under it
3About.
Liquid-permeable layers 5 is to be that polypropylene (PP), sheath portion are that the hot-wind nonwoven cloth that the compound synthetic fibers of core-sheath-type of polyethylene (PE) form forms by core.The hot-wind nonwoven cloth of liquid-permeable layers 5 is that all fibers are all carried out coating by the hydrophilic interfacial agent.Promptly do not contain the fiber that is carried out hydrophilic interfacial agent coating.In embodiment shown in Figure 3, liquid-permeable layers 5 is by overlapping many above-mentioned hot-wind nonwoven cloths, for example, with a hot-wind nonwoven cloth be folded into two-layer, three layers or four layers use.The weight per unit area of a hot-wind nonwoven cloth is 15～50g/m
2About, the weight per unit area of whole liquid permeable formation 5 is 30～150g/m
2About get final product 50～100g/m
2Better.
Weight per unit area by making liquid-permeable layers 5 can be strengthened weight per unit area and low density top flat 3 greater than the weight per unit area of top flat 3, can prevent to produce excessive wrinkle on top flat 3, produce from the part in liquid infiltration hole 25 and break etc.
The fibre density of liquid-permeable layers 5 is lower than the fibre density of top flat 3, is 0.016～0.08g/cm
3For example, top flat 3 is that the fiber of 2.2dtex constitutes by fineness, and liquid-permeable layers 5 is that the fiber of 4.4dtex constitutes by fineness.Because the density of liquid-permeable layers 5 is lower than top flat 3, liquid-permeable layers 5 is formed by the big fiber of fineness, and therefore, liquid-permeable layers 5 can be brought into play resiliency.Therefore, be that this scope can flexibly contact with the health of user on the scope of certain width at center by aforesaid liquid permeable formation 5 being arranged on longitudinal centre line Oy-Oy.
Aforesaid liquid obtains layer 6 by having the water absorption sheet 8 of Liquid Absorption function and infiltration function and shape retention, as illustrated in fig. 4 by solid forming.In the present embodiment, water absorption sheet 8 contains cellulose fiber peacekeeping synthetic resin fiber.And, in the present embodiment, use chemical pulp as cellulose fibre, it is dimethyl ester (PET) that synthetic resin fiber is to use core, sheath portion is the air-laid nonwoven fabrics (air lay paper pulp) of the compound synthetic fibers of core-sheath-type of polyethylene (PE).This air-laid nonwoven fabrics is that above-mentioned fiber is stacked in the space, the formation net, adds the binding agents such as Emulsion of vinyl acetate copolymer, forms the thin slice of binding agent amount 5～20 quality %.
Shift to liquid absorption layer 4 in order to be obtained the menses that layer 6 absorbs unobstructedly, in above-mentioned water absorption sheet 8, preferably contain above-mentioned chemical pulp more than the 20 quality % for the sum of fiber by liquid.In addition, in order also to keep three-dimensional shape shown in Figure 4 containing under the moisture state of menses, be preferably in the above-mentioned water absorption sheet 8 of sum to(for) fiber and also contain above-mentioned synthetic resin fiber more than the 20 quality %.That is, the ideal range of the mass ratio of the chemical pulp of formation water absorption sheet and synthetic resin fiber is 80: 20～20: 80.
Remain on stereoscopic-state shown in Figure 4 for liquid is obtained layer 6, the weight per unit area of water absorption sheet 8 is preferably 20～200g/m
2As the water absorption sheet 8 of weight per unit area in this scope, can use said flow to become the net non-woven fabrics with single layer structure, also can be folded into bilayer, three layers.
It is wide for more than the 2.5N that stretching breaking strength when the liquid that forms the three-dimensional shape of Fig. 4 obtains layer 6 dry is preferably on the twocouese of directions X and Y direction every 25mm.This stretching breaking strength is the peak load of measuring under following state, be about to width and be 25mm, form on directions X and the Y direction test film that elongated liquid obtains layer 6 respectively with the former chuck of 100mm between distance keep, measure when enlarging with 100mm/min between above-mentioned chuck.In addition, aforesaid liquid is obtained measure under the moisture state of artificial menses that layer 6 absorbs following explanation moistening the time the stretching breaking strength more preferably greater than equal above-mentioned stretching breaking strength when dry more than 20%, 30% better.
So long as have the weight per unit area in the above-mentioned scope and the material of stretching breaking strength, then liquid obtains layer 6 and keeps three-dimensional shapes when drying and when moistening easily, can bring into play maintenance is obtained the menses that the recess of layer 6 applies repeatedly by liquid function.So long as have above-mentioned scope interior weight per unit area and stretching breaking strength material, it also can be that said flow becomes net non-woven fabrics material in addition that liquid obtains layer 6.
For example, also can be only with the adherent air-laid nonwoven fabrics of paper pulp with binding agent.Perhaps also can be to utilize water-jet to make the miscellaneous aspunlacednonwovenfa,ric of cellulose fiber peacekeeping synthetic resin fiber.Also can be that aspunlacednonwovenfa,ric and hot-wind nonwoven cloth are carried out incorporate composite sheet by water-jet or heat-seal process, aspunlacednonwovenfa,ric be based at least one side as the paper pulp and the artificial silk of cellulose fibre; Hot-wind nonwoven cloth is based on synthetic resin fiber.Equally, above-mentioned aspunlacednonwovenfa,ric also can be a bonded nonwoven or integrated with a bonded nonwoven.Perhaps, also can above-mentioned aspunlacednonwovenfa,ric and perforated film is bonding.
In addition, form under the situation that liquid obtains layer 6, be higher than towards the material of liquid absorption layer 4 sides, then easily menses are obtained layer 6 from liquid-permeable layers 5 to liquid and suck if use towards the containing ratio of the cellulose fibre of liquid-permeable layers 5 sides with multiple fiber.On the contrary, if at the containing ratio height that on liquid absorption layer 4 sides, makes cellulose fibre, then easily menses are shifted to liquid absorption layer 4.
As shown in Figure 4, liquid obtains layer 6 and forms vertical rib 6a and horizontal rib 6b, and vertical rib 6a is that protruding side direction top flat 3 distortion, and same horizontal rib 6b is that protruding side direction top flat 3 distortion.Vertical rib 6a is at vertical (Y direction) straight-line extension, is positioned at uniformly-spaced, forms in parallel to each other at horizontal (directions X).Horizontal rib 6b connects adjacent vertical rib 6a ground to form.Horizontal rib 6b forms row, is respectively listing, and horizontal rib 6b is vertically separating certain spaced and parallel ground formation.But between adjacent row, adjacent horizontal rib 6b is not located along the same line in the horizontal, and the horizontal rib 6b that is configured to the row that the horizontal rib 6b of string is adjacent is positioned at the position of staggering.
On the part of being surrounded by above-mentioned vertical rib 6a and horizontal rib 6b, liquid obtains layer 6 towards liquid absorption layer 4 depressions, is represented with indulging these recesses 6c that rib 6a and horizontal rib 6b be divided into.This recess 6c is long depth shape in the Y direction ratio at directions X.Like this, many above-mentioned recess 6c is arranged in liquid regularly and obtains on the layer 6.
As shown in Figure 6, below recess 6c, be higher than below recess 6c height h2 to horizontal rib 6b top to the height h1 at vertical rib 6a top.As shown in Figure 3, join, bonding top bonding below by hot-melt adhesive and liquid absorption layer 4 of above-mentioned recess 6c below the top of above-mentioned vertical rib 6a and the aforesaid liquid permeable formation 5 by hot-melt adhesive.That is, the top of each vertical rib 6a is in the same plane, joins with liquid- permeable layers 5, and 6c is in the same plane for each recess, joins with liquid absorption layer 4.And above-mentioned par 6f, the 6f that liquid obtains layer 6 be following bonding by hot-melt adhesive and liquid-permeable layers 5 also.
Above-mentioned hot-melt adhesive irregularly is coated in liquid and is obtained on the top part of following and liquid absorption layer 4 of layer 6, makes from liquid and obtains layer 6 to the menses of liquid-permeable layers 5 infiltrations with obtain layer 6 from liquid and do not hindered to the menses that liquid absorption layer 4 permeates.
As mentioned above, because the top of horizontal rib 6b is lower than the top of vertical rib 6a, therefore, its top of the part of horizontal at least rib 6b is not bonding with liquid-permeable layers 5, the small gap of coordinating between the top of this horizontal rib 6b and the liquid-permeable layers 5.
As described later, aforesaid liquid acquisition layer 6 is to roll by casting mold to clamp smooth water absorption sheet 8 formation three-dimensional shapes.When this three-dimensional shape forms, because tensile stress is concentrated to the 6e of wall portion of recess 6c, on the 6e of wall portion, the power that fiber is separated from each other plays a role, and produces the low low-density part of fibre density than the bottom 6d of the top of the top of vertical rib 6a and horizontal rib 6b and recess 6c on the 6e of this wall portion.In addition, on the above-mentioned wall 6e of portion, might produce because the crackle of the concentrated generation of above-mentioned stress.On the one hand, on the bottom 6d of top of indulging rib 6a and recess 6c, the fiber that forms water absorption sheet 8 is pressurized, and fibre density increases on this part.In addition, because the pressure when being shaped do not act on the 6f of par, therefore, par 6f is lower than the density of the bottom 6d of the top of vertical rib 6a and recess 6c.
In addition, the average density that liquid obtains layer 6 is higher than top flat 3 and liquid-permeable layers 5, is lower than the fibre density of the liquid absorption layer 4 below it.Because obtaining the vertical rib 6a and the liquid-permeable layers 5 of layer 6, liquid joins, bottom 6d and the liquid absorption layer 4 of recess 6c join, and by above-mentioned density gradient, menses obtain layer 6 through liquid-permeable layers 5 to liquid from top flat 3 easily and shift, and, obtain layer 6 from liquid easily and shift to liquid absorption layer 4.In addition, as mentioned above, therefore the low-density part that has fiber separation or crack on the 6e of wall portion owing to the recess 6c that obtains layer 6 at liquid, exists the menses of above-mentioned recess 6c to shift to liquid absorption layer 4 rapidly for the moment.
Shift in order to make menses obtain layer 6 from liquid-permeable layers 5 to liquid rapidly, and be excreted to liquid absorption layer 4 from liquid acquisition layer 6 rapidly, the average density that liquid obtains layer 6 is preferably 0.05～0.25g/cm
3, be positioned at the fibre density that this liquid obtains the liquid absorption layer 4 below the layer 6 and be preferably 0.07～0.25g/cm
3
Width on the height and position of (1/2) h1 of above-mentioned vertical rib 6a is 2～10mm, is preferably 2～6mm, and the width on the height and position of (1/2) h2 of horizontal rib 6b is 2～10mm, is preferably 2～6mm.In addition, the height h1 of liquid acquisition layer 6 is 1.3～5mm.In order fully the menses that permeate top flat 3 to be remained in recess 6c, the aperture area on the height and position of (1/2) h2 of an above-mentioned recess 6c is preferably 5～20g/cm
3, in addition, the spatial volume of recess 6c { above-mentioned area * (thickness of height h1-water absorption sheet) } is preferably 8～80mm
3
In addition, the aspect ratio on the height and position of (1/2) h2 of an above-mentioned recess 6c (that is, the size of Y direction is to the ratio of the size of directions X) is preferably in 1.1～10 scope, and 1.5～7 is better, it would be desirable 2～5.During above-mentioned scope that aspect ratio is not enough, to reduce to the function of longitudinal guide at the menses that liquid obtains to obtain on the layer 6, the danger that generation increases to horizontal diffusion, if but aspect ratio surpasses above-mentioned scope, interval between the then horizontal rib 6b is excessive, when being subjected to from huckle etc. towards horizontal compression stress, can not be to horizontal performance sufficient elasticity restoring force.
Obtain on the layer 6 at this liquid, horizontal rib 6b forms to vertically leaving the compartment of terrain.Therefore, for sanitary napkin 1,1c of leading edge portion and rear edge portion 1d and make its skin-side surface become the crooked masterpiece time spent on approaching direction, and liquid obtains layer 6 bending along with this distortion easily.Particularly, if the aspect ratio of recess 6c in above-mentioned scope, then liquid obtains layer 6 easily to above-mentioned direction bending.Because liquid obtains the flexural deformation servo-actuated of layer 6 and sanitary napkin 1, therefore be not easy to produce liquid and obtain peeling off on the interface of layer 6 and liquid-permeable layers 5.
As shown in Figure 4, because horizontal rib 6b is provided with mutually towards laterally (directions X) with staggering, therefore, liquid obtains layer 6 easily as above-mentionedly to buckling.And because the height h2 of horizontal rib 6b is lower than the height h1 of vertical rib 6a, therefore, the lateral edge portion 6h and the 6h of liquid acquisition layer 6 are approaching mutually, and, also easy towards the face of skin side to the direction distortion that forms convex.
Aforesaid liquid absorbed layer 4 is the materials that contain the absorbing polymeric of the synthetic water absorbent polymer of polyacrylate, polyacrylamide, maleic anhydride etc. or natural class such as starch, cellulose in the polymer of the paper pulp of comminution pulp, soda pulping, crosslinked paper pulp etc., and the hydrophilic thin paper of usefulness such as paper pulp and above-mentioned synthetic water absorbent polymer is encased use.
Above-mentioned egative film 2 is the liquid impermeability and thin slice that be breathability, is polyethylene (PE) thin film or polypropylene (PP) thin film that is formed with trickle air-vent.For example, by mixed C aCO on plastic tab
3, BaSO
4Deng inorganic filler, carry out prolonged treatment, trickle air-vent and on thin film, suitably disperse to form, improved aeration.The thickness of thin film is about 15～50 μ m.
As shown in Figure 2, non-permeable film 30,30 is set in the left and right sides of its skin-side surface.On above-mentioned flank 1A, 1A, above-mentioned non-permeable film 30,30 by hot-melt adhesive be bonded in egative film 2 above.On the equidistant to the left and right position of leaving from longitudinal centre line Oy-Oy, non-permeable film 30,30 is overlapped into two-layer, and the elastomeric element 32 of longitudinal extension is bonded in its inside.By above-mentioned elastomeric element 32, elastic contractile force plays a role between the place ahead of sanitary napkin 1 part and rear part, makes sanitary napkin 1 bending, its result, on the mid portion of the front and back of sanitary napkin 1, non-permeable film 30,30 erects, forms leakproof wall 31,31.
Above-mentioned non-permeable film is formed by the compound nonwoven cloth of spunbond shape non-woven fabrics, melt spraying non-woven fabrics or these non-woven fabrics of lamination.
The weight per unit area of liquid absorption layer 4 is maximum on middle section 20, and the weight per unit area of the part of being clamped by inboard compression groove 11,11 and outside compression groove 16,16 is less than above-mentioned middle section 20.The weight per unit area of the liquid absorption layer 4 of the parts beyond these is identical or slightly little with the part of being clamped by inboard compression groove 11,11 and outside compression groove 16,16.
The ideal weight per unit area of the liquid absorption layer 4 on middle section 20 is 400～1200g/cm
2, 500～1000g/cm preferably
2The ideal weight per unit area of the part of being clamped by inboard compression groove 11,11 and outside compression groove 16,16 is 300～900g/cm
2, 350～600g/cm preferably
2In addition, the ideal weight per unit area of the liquid absorption layer 4 of other parts is 200～700g/cm
2, 300～500g/cm preferably
2
Its result, as shown in Figure 2, thickness maximum on middle section 20, on middle section 20, its skin-side surface becomes towards the health of user and expand into very big shape.
The length of middle section 20, promptly the place ahead connects compression groove 12 and is connected the interval longitudinally of compression groove 13 with the rear more than or equal to 50mm.The width W 1 of the middle section 20 on the lateral fiducial line Ox-Ox shown in Figure 2 is determined according to female sex organs.Because the mean breadth between women's thigh root is about 30mm, therefore above-mentioned width W 1 is preferably in 15～50mm, and the scope of 20～40mm is better.
When this sanitary napkin 1 being installed on the health of user, the inner face that is arranged on the pressure adhesive of outside of egative film 2 and crotch cloth 26 shown in Figure 2 is bonding, with flank 1A, 1A with the both sides of the edge portion of crotch cloth 26 volume live, towards the outside bending of underwear, the pressure adhesive that is arranged on the garment side surface of flank 1A, 1A is bonded in the outside of crotch cloth 26.
As shown in Figure 2, this sanitary napkin 1 is owing to the health of middle section 20 towards user expands, and therefore, this middle section 20 is close to vaginal orifice easily.The top flat 3 that is positioned at its skin-side surface of above-mentioned middle section 20 is low-density hot blast non-woven fabrics, is provided with the liquid-permeable layers 5 of fluffy hot-wind nonwoven cloth in its lower section.Therefore, middle section 20 can flexibly contact with the health of user.
Mainly drained on middle section 20 from the menses that vaginal orifice excretes.Because top flat 3 is low-density non-woven fabrics, therefore, menses can permeate in top flat 3.But owing to contain the fiber that is carried out water proofing property interfacial agent coating on the top flat 3, therefore, the diffusion of the menses on top flat 3 is suppressed.Because the following liquid-permeable layers 5 that is positioned at top flat 3 is hot-wind nonwoven cloths, has the space in inside, therefore, menses, are fallen the liquid that is positioned at below it and are obtained on the layer 6 in the space of liquid-permeable layers 5 by gravity leakage.But the most of menses that are excreted on the middle section 20 pass through rapidly in the liquid infiltration hole 25, directly obtain layer 6 towards liquid and fall.
Obtain layer 6 menses that falls to liquid and be formed water absorption sheet 8 absorptions that liquid obtains layer 6, and, drain on the liquid absorption layer 4 below being positioned at it.Though many menses are drained to top flat 3 for the moment, this menses permeation liquid permeability hole 25 is fallen liquid and is obtained layer 6,, these menses are directly remained in liquid and are obtained in the layer 6.Therefore, even the excretion of menses is many, can not be trapped in for a long time on top flat 3 or the liquid-permeable layers 5 yet.Therefore, its skin-side surface of middle section 20 can keep being bordering on dry status, is not easy to make the thigh root of user that moist feeling or feeling of oppression and heat are arranged.
The menses of the recess 6c that is drained at liquid acquisition layer 6 are imported liquid absorption layer 4 rapidly from bottom 6d and low-density part or the damaged portion from the 6e of wall portion of recess 6c of recess 6c.In addition, menses by with greater than the amount of spatial volume when several recess 6c drain, these menses are crossed lower horizontal rib 6b and are shifted to the recess 6c of vertical adjacency.On the one hand, extend, divide the vertical rib 6a of the both sides of recess 6c on parallel longitudinal ground since its top contact with liquid-permeable layers 5, bonding, therefore, menses are not easy to horizontal diffusion in liquid acquisition layers 6.Therefore, shifted to the recess 6c of vertical arrangement successively by a large amount of excretory menses one sides, one side is absorbed by liquid absorption layer 4.
And the left and right sides portion that aforesaid liquid obtains layer 6 is to the par of longitudinal extension 6f, 6f, and is lower than the fibre density of vertical rib 6a.Therefore, obtain the menses existence of layer 6, also can stop by above-mentioned par 6f, 6f to laterally (Y direction) transfer even have from liquid.Therefore, can reduce uneasiness to horizontal leakage.
If menses obtain the 6h of both sides of the edge portion, the 6h of layer 6 or cross it further to horizontal transfer towards liquid, these menses also can be stoped by inboard compression groove 11,11 or outside compression groove 16,16, therefore, can suppress effectively from sanitary napkin 1 to horizontal leakage.
Contain synthetic resin fiber owing to form the water absorption sheet 8 of liquid acquisition layer 6, therefore, even also can keep three-dimensional shape under the moisture state after absorbing menses.In addition, by when the thigh root of user is removed, can return to original three-dimensional shape shown in Figure 4 to the pressure of middle section 20 effect.Particularly indulge rib 6a and horizontal rib 6b, so the elastic recovery properties of liquid acquisition layer 6 is fine owing to being provided with.
Below, describe with regard to the manufacture method of above-mentioned sanitary napkin 1.
The operation that at first, just makes liquid obtain layer 6 formation three-dimensional shape shown in Figure 4 describes.
Fig. 7 be expression in order to form the axonometric chart that liquid obtains the patrix 40 of layer 6, Fig. 8 is the axonometric chart of expression counterdie 50, Fig. 9 is the cutaway view on the IX-IX line of above-mentioned patrix 40.
072 is being formed with protuberance 41 and the slot part between the adjacent column of raised part 41 42 of lining up row on the patrix shown in Figure 7 40.Protuberance 41 and slot part 42 are all to vertically (Y direction) extension, formation in parallel to each other.Respectively listing of raised part 41, leave the compartment of terrain in vertical (Y direction) and form recess 43.That is, protuberance 41 and recess 43 are vertically staggered.Be set at recess 43 that one of protuberance 41 lists between the recess 43 of the adjacency that lists that is arranged on the protuberance 41 that is adjacent.That is, between the row of the protuberance 42 of adjacency, above-mentioned recess 43 is arranged interlacedly.
As shown in Figure 9, the 41a of opposed end longitudinally of each protuberance 41 is rounded, and the height H 1 from the bottom surface 42a of above-mentioned slot part 42 to the top of raised part 41 is higher than the height H 2 from above-mentioned bottom surface 42a to the top of above-mentioned recess 43.
On counterdie shown in Figure 8 50, be formed with convex strip portions 51 and the slot part 52 between the convex strip portions 51 of adjacency.Convex strip portions 51 and slot part 52 are in parallel to each other to vertically (Y direction) extension.The protuberance 41 of patrix 40 is arrayed at uniform spacing about laterally (directions X) with the slot part 52 of counterdie 50.
Hinged the hinged face with counterdie 50 of above-mentioned patrix 40 is heated under poly low-melting about the 120 ℃ state than the sheath portion of the compound synthetic fibers of core-sheath-type, and as shown in figure 10, water absorption sheet 8 is sandwiched between patrix 40 and the counterdie 50.Patrix 40 and counterdie 50 are combined into that protuberance 41 enters slot part 52, convex strip portions 51 enters slot part 42.But, between the ground of the slot part 52 of the top of the protuberance 41 of patrix 40 and counterdie 50, keep plurality of gaps, under hinged state, patrix 40 is not pressed on the counterdie 5, makes between the bottom surface of slot part 42 of the top of convex strip portions 51 of counterdie 50 and patrix 40 to keep plurality of gaps.
Its result, as shown in figure 10, by the vertical rib 6a of convex strip portions 51 formation of counterdie 50, by the protuberance 41 formation recess 6c of patrix 40.In addition, by the recess 43 of patrix 40, water absorption sheet 8 is pressurizeed lightly, forms above-mentioned horizontal rib 6b by this recess 43.
In addition, form the plane 44,44 of longitudinal extension in the both sides of patrix 40, also form the plane 53,53 of longitudinal extension in the both sides of counterdie 50.Between this plane 44,44 and plane 53,53, water absorption sheet 8 forms above-mentioned par 6f, 6f with original not pressurized state.
Under hinged state, water absorption sheet 8 is sandwiched between patrix 40 and the counterdie 50, and this patrix 40 and counterdie 50 are left with gap to be provided with, and is heated to a shade below the temperature of the fusing point of composite synthetic fibre.Because water absorption sheet 8 by molding like this, therefore, obtains the complete fusion of fiber on the layer 6, solidifies at liquid, does not have the part of the film like that hinders liquid infiltration.In addition, owing to heat, therefore, can keep three-dimensional shape shown in Figure 4 after the molding with the temperature of composite synthetic fibre softening degree.
Because liquid obtains the recess 6c of layer 6 by recess 41 pressurized formation, this recess 41 has the length of regulation, arranges vertically being left the compartment of terrain, therefore, directions X and Y direction both sides' tensile stress concentrates on the part of the 6e of wall portion of the recess 6c that forms absorbability sheet 8.Therefore, on the 6e of wall portion of recess 6c, the interval of fiber is extended, and cracks according to the place.At this moment,, form vertical rib 6a, fibre density is increased, the fibre density of the bottom 6d of recess 6c is increased at the top of vertical rib 6a by pressurizeing at vertical successive convex strip portions 51.And the fibre density at the top of horizontal rib 6b is also than the above-mentioned wall 6e of portion height.
Produce liquid in batches and obtain layer 6 o'clock, patrix 40 shown in Figure 7 is formed on cylinder surface, and the Y direction is that Zhou Fangxiang, directions X are direction of principal axis, and counterdie 50 shown in Figure 8 also is formed on cylinder surface, and the Y direction is that Zhou Fangxiang, directions X are direction of principal axis.Two cylinders have relative with gap.Water absorption sheet 8 is supplied with between cylinder, formed liquid and obtain layer 6.
The manufacturing process of sanitary napkin 1 is that top flat 3 and liquid-permeable layers 5 is overlapping, forms aforesaid liquid permeability hole 25.Then, with hot-melt adhesive with liquid obtain the vertical rib 6a of layer 6 and par 6f, 6f be bonded in liquid-permeable layers 5 below.Then, with hot-melt adhesive liquid is obtained layer 6 recess 6c below be bonded on the liquid absorption layer 4.Obtain to form compression groove 10 under the state of layer 6 and liquid absorption layer 4 at overlapping top flat 3, liquid-permeable layers 5, liquid.Then, with egative film 2 overlap duplexer below carry out bondingly, above-mentioned non-permeable film 30 and duplexer are carried out bondingly making it be exposed at its skin-side surface.
In addition, different with the 6e of wall portion of recess 6c, obtain at liquid not enlarge the liftoff formation of fiber spacing to the par of longitudinal extension 6f, 6f on the both sides of layer, have rigidity to a certain degree, and density is even.Therefore, in the assembling procedure of sanitary napkin 1, for example, above-mentioned par 6f, 6f can be drawn onto on the suction conveyer belt, intactly keep three-dimensional shape to transmit liquid and obtain layer 6.
Aforesaid liquid obtains layer 6 and can form with 1 water absorption sheet 8, also can form by overlapping many water absorption sheets 8.Fig. 5 B is that expression overlapping two water absorption sheet 8A, 8B form the example that liquid obtains layer 6.Two water absorption sheet 8A, 8B use respectively with above-mentioned water absorption sheet 8 identical materials and form.
As mentioned above, when making liquid acquisition layer 6 become three-dimensional shape, tension force works to the 6e of wall portion of recess 6c, and the interval of fiber is extended, according to the difference formation crackle in place.But overlapping many water absorption sheets form liquid and obtain layer 6 o'clock, low-density part on each 6e of wall portion or damaged portion because sheet is different in different parts.Therefore, can prevent that the intensity of the 6e of wall portion of whole recess 6c from too reducing and since the smooth state of the effect that body is pressed destroyed after, return to original three-dimensional shape easily.
Also can be that many water absorption sheets are bonding by part.Many water absorption sheets all contain under the situation of thermoplasticity fiber, can carry out bonding by the gummed between the fiber.Perhaps, also can use the bonding water absorption sheet of bonding agent.To shown in Figure 10, utilize heated mould as Fig. 7, when making liquid acquisition layer 6 become three-dimensional shape, can be by the heat of mould, with the bonding absorbability sheet of pressure that does not become the film like degree.Perhaps, also can make liquid obtain by the adhesive portion of point-like many water absorption sheets to be carried out heat bonding before layer 6 becomes three-dimensional shape.
When engaging many water absorption sheets, its abutment can be any one of bottom 6d of the 6e of wall portion of vertical rib 6a, horizontal rib 6b, recess 6c and recess.Perhaps, the abutment also can at random be formed on above-mentioned all parts.But, at the 6e of wall portion of recess 6c, preferably be engaged between the Liquid Absorption sheet at least.
If on the part of vertical rib 6a and horizontal rib 6b, adhesive portion is set, then can strengthen the supporting structure of vertical rib 6a and horizontal rib 6b.In addition, as mentioned above, though fibre density is extremely low on the 6e of wall portion of recess 6c,, if on the 6e of wall portion, adhesive portion is set, then for keep shape can improve recess 6c rigidity.In addition, be provided with under the situation of adhesive portion at the 6e of wall portion of recess 6c, at bottom 6d density improved, its result makes the menses of drainage on liquid acquisition layer 6 concentrate on the bottom 6d of recess 6c, and becoming can be to liquid absorption layer 4 excretory state.
Figure 11 is the vertical view of expression as the sanitary napkin 100 of second embodiment of absorbent commodity of the present invention.Use identical symbol, detailed with the part of embodiment same structure shown in Figure 1.
This sanitary napkin 100 is the extended types that are applicable to the medium use of going to bed, vertically the total length of (Y direction) is roughly 200～450mm, the 1a of both sides of the edge portion, 1b be from the rear position of flank 1A, 1A along with enlarge the expansible shape in ground gradually towards rear edge portion 1d, form rear wing 1B, the 1B of the buttocks of contact user.
Be formed with inboard compression groove 11,11 in its skin-side surface, have the place ahead part 11A, 11A, bending section 11B, 11B and rear part 11D, 11D.The place ahead part 11A, 11A are the circular curve shape of convex towards longitudinal centre line Oy-Oy.The relative spacing of inboard compression groove 11,11 forms maximum at bending section 11B, 11B.Rear part 11D, 11D are connected compression groove 13A by the rear and connect along with approaching mutually gradually towards rear edge portion 1d.
Being connected compression groove 12 by inboard compression groove 11,11, the place ahead, be connected the part that compression groove 13A surrounds with the rear be middle section 20.Middle section 20 is, the part of being clamped by above-mentioned the place ahead part 11A, 11A is the place ahead middle section 20A of relative vaginal orifice, being bent the part that the 11B of portion, 11B clamp is the middle middle section 20B of relative perineal position, and the part of being clamped by rear part 11D, 11D is the rear middle section 20D of the ditch of relative anus and buttocks.
In addition, on two outsides about the place ahead of inboard compression groove 11,11 part 11A, 11A, form the outside compression groove 16,16 identical with Fig. 1.On the outside about the rear of inboard compression groove 11,11 part 11D, 11D, form the outside, rear compression groove 17,17, interconnected at rear edge portion 1d.
In the present embodiment, liquid-permeable layers 5 is formed setting by the past edge part 1c to rear edge portion 1d bandedly, and in addition, the liquid that above-mentioned middle section 20 is provided with three-dimensional shape same as shown in Figure 4 obtains layer 6.
In the present embodiment, the length of middle section 20, what connect from the place ahead promptly that compression groove 12 connects compression groove 13A to the rear is spaced apart 120～350mm longitudinally, and aforesaid liquid obtains layer 6 and is not set at least on the place ahead middle section 20A as the part of vaginal orifice relatively.In addition, as shown in figure 11, aforesaid liquid obtains layer 6 and also can be set on the middle middle section 20 of the place ahead middle section 20A and relative perineal position.
Embodiment
(a) top flat 3
The dimethyl ester that contains titanium oxide with 1.1% ratio of fiber quality is that core, polyethylene are the hot-wind nonwoven cloth that the core-sheath-type composite synthetic fibre (fibrousness is 2.2dtex, and fiber is long to be 44mm) of sheath portion forms, and the applying unit area weight is 25g/m
2Material.In following mensuration, width is that 130mm, length are that 200mm, weight are 0.637g.
(b) liquid-permeable layers
(weight per unit area is 20g/m for the hot-wind nonwoven cloth of the core-sheath-type composite synthetic fibre of eccentric shape (fibrousness is 4.4dtex, and fiber is long to be 50mm) to use core to be poly section as polypropylene, sheath portion
2, average thickness is that 1.75mm, average density are 0.0175g/m
3).Use is with the overlapping trilaminar material of this cloth and silk.In following mensuration, the width of liquid-permeable layers 5 is that 100mm, length are that 200mm, weight are 0.415g.
(c) the liquid infiltration hole 25
Above-mentioned top flat 3 and liquid-permeable layers 5 is overlapping, use the cylinder of pin and have above-mentioned pin to enter the liquid infiltration hole 25 of 70 ℃ the cylinder formation in hole from top flat 3 perforation liquid-permeable layers 5 with 100 ℃.The opening diameter in liquid infiltration hole 25 is 2mm, and spacing is that Y direction 5.5mm, directions X 3.5mm ground are arranged.
(d) liquid obtains layer 6
With the air-laid nonwoven fabrics that contains following material (air lay paper pulp), the i.e. chemical pulp of 60 quality %, the core of 26 quality % is that dimethyl ester, sheath portion are that (fibrousness is 1.7dtex to poly core-sheath-type composite synthetic fibre, fiber is long to be 13mm) and the polymeric latex bonding agent of ethene-vinyl acetate of 14 quality %, the applying unit area weight is 40g/m
2Material.This cloth and silk is overlapped into two-layer as 8 uses of water absorption sheet.In following mensuration, the width that liquid obtains layer 6 is that 50mm, length are that 100mm, weight are 0.205g.
The comparative example 1 of table 1 is not with above-mentioned water absorption sheet 8 three-D changeable shapes, uses and directly obtain layer 6 as liquid.The average thickness of 5 mensuration of the above-mentioned water absorption sheet 8 of drying regime is 0.928mm.
The average density of the above-mentioned water absorption sheet 8 before the stereo shaping is 0.075g/cm
3Stretching breaking strength when liquid obtains layer 6 and becomes the Y direction measured behind the three-dimensional shape and directions X dry is respectively 3.46N/25mm and 2.83N/25mm.
Above-mentioned water absorption sheet 8 is carried out stereo shaping, obtains liquid acquisition layer 6.Width on the height of the h1/2 of vertical rib 6a is that the width on the height of h2/2 of 3mm, horizontal rib 6b is 2.5mm, and the aperture area of the recess 6c on the height and position of h2/2 is 15/mm
2
But, in the comparative example shown in the table 12, embodiment 1～embodiment 8, the gap of above-mentioned patrix 40 and counterdie 50 is changed, the thickness (h1 among Fig. 6) of the liquid acquisition layer 6 under drying regime is changed.
Comparative example 2 is that because above-mentioned thickness is 1.192mm, therefore, the spatial volume of recess 6c is { 15 * (1.192-0.928) }=3.96mm
3If similarly calculate, among the embodiment 2 of the thickness minimum in embodiment 1～8, spatial volume is 8.61mm
3, in the embodiment 8 of thickness maximum, spatial volume is 32.64mm
3That is the spatial volume 8.61mm of the recess among the embodiment 1～8,
3To 32.64mm
3
(e) liquid absorption layer
Uniform mixing 8g chemical pulp and 0.15g water absorbent polymer, formation width are that 70mm, length are that 200mm, density are 0.069g/cm
3Duplexer, use 15g/m
2Thin paper encase the back as liquid absorption layer 4.
(1) measures thickness
After the pressurization, the UF-60A that makes society's production of the smart device of Daiei science measures thickness when drying and under the moisture state.
(2) dripping property test
The comparative example 2 of table 1, each liquid acquisition layer 6 of embodiment 1～embodiment 8 are fixed on the peristome that volume is the beaker of 50ml.The central part that obtains layer 6 from liquid leaves 5mm upward and utilizes automatic burette that the flow of artificial menses with 3ml/min dripped continuously.And the junior one of measuring artificial menses is dripped from beginning to drop to time of falling at first in the beaker (unit for second).
Use following material at these artificial menses, that is, add glycerol 300g in 4.0 liters ion exchange water, acid methyl cellulose sodium 30g, sodium chloride 40g stir, obtain solution, and this solution is eaten chromatic colorant with redness.
(3) pressurizing absorption test
Shown in Figure 13 B, liquid absorption layer 4, liquid are obtained layer 6, liquid-permeable layers 5 and top flat 3 overlapped on the smooth testing stand 61 by the order of the material of one according to title.With the aluminium sheet of Figure 12 A illustrated dimension make the central authorities of its peristome 62a and duplexer as one man be arranged on duplexer above.And, add the counterweight 63,63 of 900g respectively in the front and back of peristome 62a.The deadweight of aluminium sheet is 115g.
Utilize automatic burette that the flow of above-mentioned artificial menses with 95ml/min splashed in the above-mentioned peristome 62a.Splash into for the first time 3ml, measure from the beginning feed fluid to time (second) that the surface liquid at peristome 62a top piece 3 disappears.After the liquid that splashes into for the first time disappeared 30 seconds from the surface of top flat 3, splash into the artificial menses of 4ml, measure time of penetration equally.After secondary liquid disappeared back 5 minutes from the surface of top flat 3, splash into the artificial menses of 3ml, measure time of penetration equally.
The liquid of Gong Geiing, after 1 minute unloads aluminium sheet 62 and counterweight 63,63 from the surface disappearance of top flat 3 at last, measures the thickness that liquid obtains layer 6.(thickness under the drying regime after the thickness/formation after the pressurizing absorption test) * 100 are calculated as thickness change.
Measurement result as shown in the following Table 1.
Table 1
| Comparative example 1 | Comparative example 2 | Embodiment 1 | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | ||
| Temperature (upper and lower mould) | Do not handle | ????80 | ????120 | ????80 | ????80 | ????80 | ????60 | ????80 | ????100 | ????80 | |
| Thickness after the molding (drying) average (n=5) | ????0.929 | ????1.192 | ????2.548 | ????1.502 | ????1.678 | ????2.018 | ????2.454 | ????2.404 | ????2.580 | ????3.104 | |
| The test of dripping property | (second) | ????33.0 | ????16.7 | ????13.0 | ????14.0 | ????11.7 | ????13.3 | ????14.0 | ????16.7 | ????15.0 | ????19.0 |
| The pressurizing absorption test | 3ml | ????5.57 | ????6.59 | ????4.43 | ????6.07 | ????5.22 | ????4.49 | ????4.64 | ????4.43 | ????4.40 | ????4.27 |
| Place 5 minutes → total ascent time | 4ml | ????12.37 | ????13.36 | ????6.82 | ????10.45 | ????10.17 | ????9.34 | ????10.12 | ????8.14 | ????8.63 | ????8.69 |
| 3ml | ????15.69 | ????15.52 | ????7.04 | ????11.21 | ????12.59 | ????11.86 | ????12.24 | ????10.21 | ????9.65 | ????9.28 | |
| (second) | ????33.63 | ????35.48 | ????18.29 | ????27.72 | ????27.98 | ????25.69 | ????27.00 | ????22.78 | ????22.68 | ????22.24 | |
| Pressurizing absorption test back obtains layer thickness | ????0.80 | ????0.85 | ????2.15 | ????1.20 | ????1.35 | ????1.47 | ????1.38 | ????1.58 | ????1.60 | ????1.54 | |
| Thickness change (%) | ????86.21 | ????71.31 | ????84.38 | ????79.89 | ????80.45 | ????72.84 | ????56.23 | ????65.72 | ????62.02 | ????49.61 | |
Can confirm from table 1, in each embodiment 1～8, the permeability for liquids in dripping property, the pressurizing absorption test is good.
Though illustrate and illustrate with regard to embodiment, above-mentioned and other various changes, omit, append that not exceed spirit of the present invention and scope and constitute the present invention be that those skilled in the art certainly can understand.For example, in the above-described embodiment, obtain between the layer 6 liquid guide layer 5 to be set, also liquid guide layer 5 can be set at top flat 3 and liquid, aforesaid liquid obtain layer 6 directly and top flat 3 join.Therefore, be construed as the present invention and be not limited to certain embodiments described herein, and comprise, the scope that it relates to and in impartial scope, be carried out specific all possible embodiment about the feature described in the claim of adnexa.
According to above-mentioned the present invention, when liquid is drained for the moment in a large number, can absorb liquid absorption layer rapidly with behind the following maintenance liquid of top flat, can prevent that liquid residue is on top flat.
Claims (8)
1. absorbent commodity has: be positioned at the permeability for liquids of its skin-side surface top flat (3), be positioned at the egative film (2) of garment side surface and be positioned at above-mentioned top flat (3) and above-mentioned egative film (2) between liquid absorption layer (4), it is characterized in that,
Liquid obtain layer (6) be set at aforesaid liquid absorbed layer (4) on the surface of above-mentioned top flat (3), aforesaid liquid obtains the state that layer (6) is maintained at three-D changeable shape,
It is parts behind water absorption sheet (8) three-D changeable shape that aforesaid liquid obtains layer (6), has vertical rib (6a) and horizontal rib (6b), this vertical rib (6a) towards above-mentioned top flat (3) be convex and with the vertically extension in parallel to each other of article; This horizontal rib (6b) is convex and to the horizontal expansion of article towards above-mentioned top flat (3), above-mentioned horizontal rib (6b) is vertically leaving the compartment of terrain setting, and connect between the vertical rib (6a) of adjacency, form by a plurality of recesses (6c) of above-mentioned vertical rib (6a) and horizontal rib (6b) encirclement
At least above-mentioned vertical rib (6a) joins with top parts, the bottom (6d) of above-mentioned recess (6c) joins with aforesaid liquid absorbed layer (4).
2. absorbent commodity as claimed in claim 1, it is characterized in that, be lower than from the bottom (6d) of above-mentioned recess (6c) to the height dimension (h1) at the top of above-mentioned vertical rib (6a) from the bottom (6d) of above-mentioned recess (6c) to the height dimension (h2) at the top of above-mentioned horizontal rib (6b).
3. absorbent commodity as claimed in claim 1 is characterized in that, each above-mentioned recess (6c) is vertically than laterally long depth.
4. absorbent commodity as claimed in claim 1 is characterized in that, the spatial volume of a recess (6c) is 8～80mm
3
5. absorbent commodity as claimed in claim 1 is characterized in that, the concentrating of the tensile stress when aforesaid liquid obtains layer (6) and has by above-mentioned water absorption sheet (8) by three-D changeable shape, the low-density part that interfibrous interval is expanded.
6. absorbent commodity as claimed in claim 1 is characterized in that, obtains layer (6) at aforesaid liquid and goes up and form par (6f), and this par (6f) has than the wide width (Wa) of above-mentioned vertical rib (6a) and to vertically extending continuously.
7. absorbent commodity as claimed in claim 1 is characterized in that, aforesaid liquid obtain layer (6) be many water absorption sheets (8A, 8B) superimposed, carried out three-D changeable shape together.
8. absorbent commodity as claimed in claim 1 is characterized in that, when vertically measuring, the stretching breaking strength when aforesaid liquid obtains layer (6) dry is that every 25mm width is more than or equal to 2.5N.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002354186A JP4323787B2 (en) | 2002-12-05 | 2002-12-05 | Absorbent article having a liquid acquisition layer |
| JP354186/2002 | 2002-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1694668A true CN1694668A (en) | 2005-11-09 |
| CN100450465C CN100450465C (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801008142A Expired - Lifetime CN100450465C (en) | 2002-12-05 | 2003-12-02 | Absorbent article with liquid acquisition layer |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP4323787B2 (en) |
| KR (1) | KR101078105B1 (en) |
| CN (1) | CN100450465C (en) |
| AU (1) | AU2003284530A1 (en) |
| MY (1) | MY131925A (en) |
| TW (1) | TWI231202B (en) |
| WO (1) | WO2004049998A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771144A (en) * | 2019-01-10 | 2019-05-21 | 贵州卡布婴童用品有限责任公司 | A kind of multi-convex point type pervious bed and its manufacturing method |
| CN113905698A (en) * | 2019-05-15 | 2022-01-07 | 宝洁公司 | Disposable absorbent article |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4757039B2 (en) * | 2006-01-25 | 2011-08-24 | 花王株式会社 | Absorbent articles |
| JP5054962B2 (en) * | 2006-11-06 | 2012-10-24 | ユニ・チャーム株式会社 | Absorbent articles |
| TWI454250B (en) * | 2007-08-28 | 2014-10-01 | Kao Corp | Shaped sheet and absorbent article using the same |
| JP5210032B2 (en) * | 2008-04-23 | 2013-06-12 | 花王株式会社 | Absorbent articles |
| JP2011120654A (en) * | 2009-12-08 | 2011-06-23 | Kao Corp | Absorbent article |
| JP5132798B2 (en) * | 2011-06-09 | 2013-01-30 | 花王株式会社 | Absorbent articles |
| JP6779251B2 (en) * | 2018-04-20 | 2020-11-04 | ユニ・チャーム株式会社 | Absorbent article |
| JP2020014663A (en) * | 2018-07-25 | 2020-01-30 | 王子ホールディングス株式会社 | Absorbent article |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594251A (en) * | 1978-12-31 | 1980-07-17 | Uni Charm Corp | Article for treating body fluid |
| JP3016978B2 (en) * | 1991-11-11 | 2000-03-06 | ザ、プロクター、エンド、ギャンブル、カンパニー | Absorbent article with rapid liquid transport zone |
| CN1240125A (en) * | 1998-06-03 | 2000-01-05 | 尤妮佳股份有限公司 | Body liquid absorption articles |
| JP3883308B2 (en) * | 1998-11-09 | 2007-02-21 | 花王株式会社 | Absorbent articles |
| JP2002140015A (en) * | 2000-11-01 | 2002-05-17 | Citizen Watch Co Ltd | Liquid crystal display device |
-
2002
- 2002-12-05 JP JP2002354186A patent/JP4323787B2/en not_active Expired - Fee Related
-
2003
- 2003-12-02 KR KR1020057005931A patent/KR101078105B1/en active IP Right Grant
- 2003-12-02 WO PCT/JP2003/015389 patent/WO2004049998A1/en active Application Filing
- 2003-12-02 AU AU2003284530A patent/AU2003284530A1/en not_active Abandoned
- 2003-12-02 CN CNB2003801008142A patent/CN100450465C/en not_active Expired - Lifetime
- 2003-12-04 TW TW92134217A patent/TWI231202B/en not_active IP Right Cessation
- 2003-12-04 MY MYPI20034642 patent/MY131925A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771144A (en) * | 2019-01-10 | 2019-05-21 | 贵州卡布婴童用品有限责任公司 | A kind of multi-convex point type pervious bed and its manufacturing method |
| CN109771144B (en) * | 2019-01-10 | 2021-06-11 | 贵州卡布婴童用品有限责任公司 | Multi-convex-point type water permeable layer and manufacturing method thereof |
| CN113905698A (en) * | 2019-05-15 | 2022-01-07 | 宝洁公司 | Disposable absorbent article |
| CN113905698B (en) * | 2019-05-15 | 2024-05-24 | 宝洁公司 | Disposable absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI231202B (en) | 2005-04-21 |
| TW200423910A (en) | 2004-11-16 |
| AU2003284530A1 (en) | 2004-06-23 |
| CN100450465C (en) | 2009-01-14 |
| JP2004181087A (en) | 2004-07-02 |
| WO2004049998A1 (en) | 2004-06-17 |
| MY131925A (en) | 2007-09-28 |
| JP4323787B2 (en) | 2009-09-02 |
| KR20050084838A (en) | 2005-08-29 |
| KR101078105B1 (en) | 2011-10-28 |
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Granted publication date: 20090114 |