CN1197538C - Absorbent article - Google Patents
Absorbent article Download PDFInfo
- Publication number
- CN1197538C CN1197538C CNB01139322XA CN01139322A CN1197538C CN 1197538 C CN1197538 C CN 1197538C CN B01139322X A CNB01139322X A CN B01139322XA CN 01139322 A CN01139322 A CN 01139322A CN 1197538 C CN1197538 C CN 1197538C
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- Prior art keywords
- mentioned
- surface layer
- absorbent commodity
- liquid
- protrusion
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- Expired - Lifetime
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
-
- 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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
- A61F13/5126—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations characterised by the planar distribution of the apertures, e.g. in a predefined pattern
-
- 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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
- A61F2013/5127—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations characterized by the dimension of apertures
-
- 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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
- A61F2013/51338—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability having improved touch or feeling, e.g. smooth film
Abstract
In the absorptive article, rhombic protruded parts(16) are formed on a surface layer(10) obtained by piling a surface sheet(11) on a lining sheet(12), channel parts(17) are formed so as to enclose the rhombic protruded parts(16) and hole parts(13) are opened to the channel parts(17). Consequently, a liquid supplied from the protruded parts(16) to the channel parts(17) is rapidly absorbed from the hole parts(13). Hence the absorptive article which has soft touch to the skin since the parts individually and independently exhibit cushioning properties and elasticity. So to solve a problem that a perforated film used as a surface sheet for a sanitary napkin, etc. has a sticky feeling to the skin, the surface sheet made of a nonwoven fabric having a ridge channel has irritation to the skin and poor liquid permeability.
Description
Technical field
The present invention relates to absorbent commodities such as sanitary napkin and disposable diaper, urine absorbent pad, short underpants lining, particularly relating to liquid permeability can be good, and can produce the absorbent commodity of resiliency to wearer's skin.
Background technology
The liquid side surface material that is subjected to as absorbent commodities such as sanitary napkin and disposable diapers often uses perforated film.
The manufacture method of this perforated film is as follows: the his-and-hers watches mask is permitted to supply with on the porous screen roller olefine kind resin thin film, and then make the remollescent suction pressure that utilizes screen roller inside simultaneously of resin on above-mentioned resin film, form the hole of corresponding above-mentioned holes of drum with hot blast, make side-prominent and form catheter to thin film of thin film around the perforate simultaneously.
If utilize perforated film as being subjected to liquid side surface material, the liquid that flows on the film surface is absorbed by liquid-adsorption layer by perforate.By in advance above-mentioned perforated film being made white, can reach the effect of covering the liquid colors such as menses that absorbed by liquid-adsorption layer.
Utilize the bigger gas of bulkiness to wear conduct such as type non-woven fabrics and be subjected to liquid side surface material, utilize the raised line that the shape that is in line that is staggered to form extends and the structure of groove, and use above-mentioned raised line and groove structure towards vertical configuration of absorbent commodity.This surface patch has resiliency to wearer's skin, and has and the softish advantage of contacting of skin.
Yet the surfacing that adopts perforated film can not make all liquid import liquid-adsorption layer fast from perforate when volume liquid flows on this surface, may residual liquid on film surface.In case liquid residue is arranged on film surface, this liquid will flow to the vertical and horizontal of absorbent commodity along film surface, and makes wearer's skin that moist feeling is arranged easily, and have take place liquid from the surface of absorbent commodity to the danger that laterally spills.
In addition, as above-mentioned perforated film, though on the edge part of perforate, be formed with catheter, because such catheter disperses as the bigger part of hardness ratio thereby this perforated film can make wearer's skin that rigidity sense (strong tactility) is arranged towards liquid-adsorption layer.
In addition, forming under the situation of above-mentioned surfacing with the non-woven fabrics with raised line and groove, liquid easily along in the groove to vertically the flowing of absorbent commodity, thereby make the wearer moist feeling be arranged on a large scale easily.Because of raised line forms these raised lines of rectilinear form after being overwhelmed by wearer's skin pressure, adjacent raised line is overlapping, and easier with contact skin the time have a rigidity sense.
Summary of the invention
Task of the present invention is to solve the aforementioned problems in the prior, and purpose provides and a kind ofly can see through liquid rapidly, and has the absorbent commodity with the soft surfacing that contacts of wearer's skin.
Absorbent commodity of the present invention have the surface layer of nexine, transflective liquid and be clipped in above-mentioned the inside layer and above-mentioned surface layer between liquid-adsorption layer, it is characterized in that:
Above-mentioned surface layer is formed by non-woven fabrics, above-mentioned surface layer have to face side bulge into convex the regulation area protrusion and to surround above-mentioned each protrusion and to separate the groove that the state of each protrusion forms continuously, section forms concavo-convex, is formed with the hole of permeate body and function in above-mentioned groove.
In this case, the inboard that is preferably in above-mentioned protrusion forms the space, and preferably makes the fibre density height of the fibre density of above-mentioned concave part than the fiber protrusion of above-mentioned protrusion.
For this absorbent commodity, because the protrusion of the regulation area of the surface layer that is formed by non-woven fabrics has the resiliency with contact skin, so can flexibly contact with skin.And make liquid on the protrusion flow into concave part around it rapidly, the liquid that reaches in the concave part flows to all directions in length and breadth of absorbent commodity along concave part, and from the orifice flow that is positioned at groove to liquid-adsorption layer.Therefore can see through liquid rapidly.
Absorbent commodity of the present invention has the surface layer of the inside sheet, liquid permeability, and is clipped in the liquid-adsorption layer between above-mentioned the inside sheet and the above-mentioned surface layer, it is characterized in that:
Above-mentioned surface layer is formed by the non-woven fabrics of energy liquid permeability, above-mentioned surface layer has towards the portion of subsideing of above-mentioned liquid absorption layer depression regulation area with to surround above-mentioned depressed part and to separate the convex strip portions of the continuous formation of state of each depressed part, section forms concaveconvex shape, forms liquid drain hole in above-mentioned convex strip portions.
In this case, preferably make the fibre density height of the fibre density of above-mentioned convex strip portions than above-mentioned depressed part.
For the absorbent commodity of the invention described above,, and they can not be moved on surface layer because goo in the Excreta and cell etc. are trapped in the depressed part of regulation area.And, if the fibre density of convex strip portions than higher, then liquid can be absorbed by convex strip portions fast, goes into liquid-adsorption layer from the orifice flow that is formed on the convex strip portions rapidly then.In addition, form, thereby compare with the raised line of the linearity in past easily, thereby make skin that good buffering sense be arranged to two directions distortion in length and breadth because of convex strip portions surrounds depressed part.
For example in above-mentioned concave part or above-mentioned convex strip portions, make above-mentioned hole portion surround above-mentioned protrusion or above-mentioned depressed part alignment arrangements, the shape of the alignment arrangements line of above-mentioned hole portion is assumed diamond in shape, above-mentioned rhombohedral acute angle is vertical towards absorbent commodity, and the interior angle of above-mentioned acute angle is the 20-70 degree.
In this case, preferably making the rhombohedral every edge lengths that is formed by above-mentioned arranging line is 3～20mm.
And in above-mentioned concave part or above-mentioned convex strip portions, above-mentioned hole portion is arranged in the mode of surrounding above-mentioned protrusion or above-mentioned depressed part, comprising the above-mentioned protrusion that surrounded by above-mentioned hole portion or the region area of above-mentioned depressed part is 9～400mm
2
In addition, the thickness that preferably makes above-mentioned surface layer is 0.5～5mm, and on KES fabric feeling testing machine, the compression ratio when being added with the pressure of 4.9Kpa on above-mentioned surface layer is 30～80%.
In addition, in the above-mentioned surface layer at least section form concavo-convex part and overlap to form by two synusia non-woven fabrics at least, if above-mentioned two-layer nonwoven is respectively concavo-convex, then surfacing will have more resiliency.At this moment, preferably make the hydrophilic of non-woven fabrics of nexine than the hydrophilic height of the non-woven fabrics on top layer.
Description of drawings
Fig. 1 is the cutaway view of absorbent commodity of the present invention.
Fig. 2 is the profile perspective that the II-II line along Fig. 1 of the surface layer of expression first embodiment dissects.
Fig. 3 is along above-mentioned II-II line side cross sectional view.
Fig. 4 is the partial plan layout of the convex-concave pattern of the above-mentioned surface layer of expression.
Fig. 5 is the partial plan layout of convex-concave pattern of the surface layer of expression second embodiment of the present invention.
Fig. 6 is the partial sectional view of the absorbent commodity of expression second embodiment of the present invention.
The specific embodiment
Fig. 1 be as an example of absorbent commodity of the present invention with cutting off the cutaway view that line cuts off sanitary napkin vertically being divided into binary center, Fig. 2 is the perspective view that comprises along the section of the II-II cutting line among Fig. 1.Fig. 3 is along II-II line side cross sectional view, and Fig. 4 is the plane graph of the convex-concave pattern of presentation surface layer, and Fig. 5 is the plane graph of convex-concave pattern of the surface layer of another embodiment of expression.Fig. 6 is the profile of the absorbent commodity of expression another embodiment of the present invention.
On above-mentioned leakproof wall 6,6, engage the elastic component 7 that has longitudinally (Y direction) to extend respectively.Contractility by means of this elastic component 7 makes sanitary napkin 1 towards vertical formation curved shape.The result can make leakproof wall 6 erect from the liquid side surface that is subjected to of sanitary napkin 1.
Above-mentioned surface layer 10 is formed by non-woven fabrics.As shown in Figures 2 and 3, above-mentioned surface layer 10 is overlapped to form by surface patch 11 and lining sheet 12, and surface patch 11 and lining sheet 12 are at least in local engagement.
On this surface layer 10, form a plurality of delivery holes 13 that connect surface patch 11 and lining sheet 12.In Fig. 2 and absorbent commodity shown in Figure 4, above-mentioned hole 13 shape that is arranged in a straight line is represented the arranging line in above-mentioned hole 13 with L1, L2 in Fig. 4.Be meant the imaginary line of the centrage in the hole 13 by the shape that is arranged in a straight line at this arranging line L1, L2.And 13 are not configured to string in the hole, but when being arranged in most row or random alignment in the banded scope of defined width, L1, L2 are meant the imaginary line at the width center of the above-mentioned banded scope of arranging by hole 13.
According to Fig. 2 and embodiment shown in Figure 4, above-mentioned arranging line L1 and L2 form angularly with vertical (Y direction) respectively and extend, the marker space 15 that is arranged line L1 and arranging line L2 encirclement is rhombuses, but the invention is not restricted to rhombus, also can be parallelogram, rectangle, square, or even pentagon and hexagon etc.
As shown in Figure 4, the acute angle of above-mentioned rhombohedral marker space 15 is towards vertical (Y direction).So, in above-mentioned marker space 15, be formed with the protrusion 16 that above-mentioned surface patch 11 and the inside sheet 12 swell towards isolating surface direction on wick 3 together.The shape that above-mentioned protrusion 16 is seen as planar graph is and the rhombus similar shapes of above-mentioned marker space 15, specifically has circular-arc shape in rhombohedral bight.
Surrounded by concave part 17 around the above-mentioned protrusion 16, each protrusion 16 is divided independently of each other by above-mentioned concave part 17.According to Fig. 2 and embodiment shown in Figure 4, above-mentioned concave part 17 has the width W a of regulation and forms rectilinear form, and above-mentioned hole 13 and above-mentioned arranging line L1 and L2 are positioned at the center of above-mentioned groove 17 widths, and is positioned at the bottom of groove 17.
As shown in Figure 3, top (surface) 16a of the above-mentioned protrusion 16 of surface layer 10 almost is smooth surface, forms mild curved surface from the bottom of groove 17 to above-mentioned upper surface 16a.As shown in Figure 3, also form space 18 in the inside of above-mentioned protrusion 16 sheet one side.
The sectional drawing that is formed with above-mentioned protrusion 16 and above-mentioned concave part 17 on the surface layer 10 is concavo-convex, but above-mentioned concaveconvex shape as shown in Figure 1, is formed by the zone that covers wick 3 (in the width W and the zone in the longitudinal length L scope).But above-mentioned concaveconvex shape promptly can be only in the zone that covers above-mentioned wick 3 and only on than the central part narrow, form by above-mentioned width W and longitudinal length L area surrounded, above-mentioned jog also can form on the vast zone in the profile outside that expands to above-mentioned wick 3, also can form above-mentioned jog on the whole zone of above-mentioned surface layer 10.
As shown in Figures 2 and 3, above-mentioned back boxing sheet 12 mainly only is configured in the zone that is formed with above-mentioned concaveconvex shape, and is only forming surface layer on above-mentioned surface patch 11 on other the zone.
In addition, preferred embodiment under surface patch 11 and back boxing sheet 12 eclipsed states above-mentioned concaveconvex shape is heated pressurization according to one, the result makes the fibre density height of the fibre density of concave part 17 bottoms than protrusion 16 upper surface 16a.
Adopt the physiological napkin of this surface layer 10, though also can make the liquid of falling on this surface layer 10 see through surface layer 11 and back boxing synusia 12, aforesaid liquid upper surface 16a from protrusion 16 in the zone 15 of above-mentioned graduation imports around the concave part 17 around it.Particularly when the fibre density of concave part 17 is higher than the fibre density of protrusion 16, capillarity by concave part 17 makes the liquid that drops on the protrusion 16 flow into concave part 17 rapidly, particularly because of each protrusion 16 all by concave part 17 around, so that fall liquid on the protrusion 16 and very rapidly import in concave part 17 around it.
Though the liquid that imports above-mentioned concave part 17 in can transmit in concave part 17, because of these concave part 17 relative vertical and horizontal form sideling, and liquid above-mentioned concave part 17 transmission tailing edge in length and breadth two directions scatter.Porose 13 because of increasing in above-mentioned concave part 17, institute is so that will directly be absorbed by wick 3 through hole 13 at the liquid that concave part 17 transmits.Because liquid transmits concave part 17 in, concave part 17 interior liquid are not easy saturated, thereby the further delay of limiting holes 13 and liquid on every side thereof can make liquid promptly from hole portion 13 supply wick 3.
And because of above-mentioned concave part 17 forms around each protrusion 16, and that the liquid channeling direction in the concave part 17 can not feed through to is multi-direction, and make liquid be not easy to occur in vertical and horizontal on a large scale in the phenomenon that enlarges.
In addition,, form space 18, and make each protrusion 16 be subjected to soft to be out of shape behind the pressure of skin in its inside side because of protrusion 16 has regulation area and independently of one another.Therefore be rich in loftiness, be not easy to cause constriction wearers skin.In addition because of each protrusion 16 distinguished by concave part 17 discrete mutually, so the distortion of protrusion 16 can not send other protrusion 16 to.Thereby the concaveconvex shape that can make surface layer 10 follow the tracks of wearers skin is out of shape, and the pressure of the thickness direction of Track Table surface layer 10 flexibly not only, also flexibly follows the tracks of vertical and horizontal pressure, so have good wearing feeling.In addition, different mutually with the Y direction along directions X because of each protrusion 16, and when the pressure of wearers skin damaged protrusion 16 or overwhelm by pressure, adjacent protrusion also was not easy to overlap each other, thereby was not easy skin is produced Pressure stimulation.
Above-mentioned surface patch 11 and back boxing sheet 12 can use the fleece that is shaped by combing method is bonded into flaky air non-woven fabrics with heat embossing and hot blast, successive long fibre is made the spun-bonded non-woven fabrics of the indirect answer print of fiber after stacked, make between the fibroreticulate fiber that combing method forms by the interlacing spunbond net non-woven fabrics of current etc.These non-woven fabrics hang down at the gas of thickness direction high resilience restoring force with bulk and fibre density wears the formula non-woven fabrics for most preferably, and this ventilative non-woven fabrics is the fleece that will form by combing method, sucks to make to be joined together between fiber with hot blast to form.
Core sheath structure, the compound rigid fiber of core shift core sheath structure or the heatmeltable fiber of composite synthetic fibre above-mentioned resin combination and interposed structure that the fusing point that the fiber that is used in nonwoven cloth material can use the epitheca part constitutes than PE (polyethylene)/PP (polypropylene), PE/PET, EVOH (polyethylene glycol copolymer)/PET, PP/PP, resin that PET (poly terephthalic acid, glycol ester)/core segment melting points such as PET are low.
Preferably make in order to become white as required and contain for example inorganic fillers such as titanium dioxide of 0.1～10% weight proportion in the above-mentioned fiber, can make surface patch 11 and back boxing sheet 12 become white owing to contain above-mentioned inorganic filler, thereby can visually hide the color of the liquid such as menses that absorbed by wick 3.
The non-woven fabrics of above-mentioned surface patch 11 and back boxing sheet 12 is made by above-mentioned hydrophobic synthetic fibre, also can sneak into hydrophilic fibres such as regenerated celulose fibres such as viscose rayon yarn, acetate silk and native cellulose fibre in above-mentioned hydrophobic synthetic fibre.
Perhaps, the above-mentioned surface patch 11 that is positioned at wearers skin one side can be the hydrophobicity non-woven fabrics that main body ground constitutes for hydrophobic fiber, also can form above-mentioned back boxing sheet 12 with above-mentioned hydrophobic fibre and the blended non-woven fabric plate of above-mentioned hydrophilic fibre.Perhaps, also can apply hydrophilic oil preparation etc. to the hydrophobic synthetic fibre that constitutes back boxing sheet 12 and carry out hydrophilic treated.So, because of making hydrophilicity specific surface sheet 11 height of back boxing sheet 12, and set hydrophilic rate gradient, and that part of of hole 13 that do not see through in the liquid of falling on the surface patch 11 is attracted in the back boxing sheet 12, thereby can make it see through surface patch 11, can reduce the surface wettability degree of surface layer 10 thus.
In addition,, in hydrophobic synthetic fibre, mix under the situation of hydrophilic fibers, adopt the weight proportion of 2-30% for the elasticity of not damaging non-woven fabrics when keeping moisture pick-up properties preferably makes above-mentioned hydrophilic fibers as surface patch 11 and back boxing sheet 12.
It is important keeping bulkiness and elasticity as the characteristic of the nonwoven cloth material of surface patch 11, therefore the thickness of surface patch 11 is preferably in the scope of 0.3～2.0mm, be preferably in the scope of 0.3～1.0mm, for do not produce texture inhomogeneous and preferably use fiber number in 1.1～4.4 Denier scopes and fabric surface density at 20～150g/m
2Non-woven fabrics.Preferably making the non-woven fabrics of the state before protrusion 16 forms hole 13 in addition is one inch, chuck spacing 100mm in order to obtain bulkiness and elasticity at width, the stretch breaking strength of vertical (Y direction) when stretching under the condition that draw speed 100mm/ divides is preferably more than 6.8N, the scope of 11.7～24.5N more preferably, and laterally the stretch breaking strength of (directions X) preferably more than 0.9N more preferably in the scope of 1.4～2.5N.
As shown in Figures 2 and 3, in the scope that covers wick 3,, then can further improve bulkiness and elastic restoration ratio if surface layer 10 is made of the double structure that engages above-mentioned back boxing sheet 12 on above-mentioned surface patch 11.
In addition, the maximum gauge of measuring each hole 13 is averaged the average largest diameter that obtains to them then, from seeing through liquid and preventing that liquid from considering preferably scope at 0.3～2.0mm to face side these directions that flow backwards, and when the fabric feeling of considering non-woven fabrics and durability, the area ratio/occupancy ratio in hole preferably 5～40%, preferred 7～15%.
Above-mentioned hole 13 can be separated the fiber formation of fine non-woven fabric plate by the acupuncture that utilizes heating.In addition, all diameters in hole 13 can be identical, also can be by the hole assembled arrangement that varies in size.Forming with above-mentioned acupuncture under the situation in hole 13, the pin of heating is connected from back boxing sheet 12 1 lateral surface sheets 11 1 sides, extract towards the inside direction then, make above-mentioned hole 13 fiber on every side outstanding whereby to the inside direction (direction of wick 3), like this, by making the side-prominent to wick 3 of hole 13 on every side, be easy to make the liquid in the concave part 17 to import the wick 3 from above-mentioned hole 13.
As other method that is used to form hole 13, can or form non-woven fabrics before the protrusion 16 the non-woven fabric plate that is formed with protrusion 16 and supply between roller that the surface is formed with many pins and the smooth roller, the peripheral speed of above-mentioned two rollers is provided with difference and makes their rotations.Make above-mentioned pin scratch brokenly non-woven fabric plate whereby, so that can on non-woven fabrics, form slot 13.The peripheral speed of at this moment establishing a roller is V1, and the peripheral speed of another roller is V2, then uses peripheral speed that (V2-V1)/V1 represents than the scope that is preferably in 10～60%.
According to Fig. 2 and embodiment shown in Figure 4, the above-mentioned zone 15 that surrounds with arranging line L1 and L2 is rhombuses, and its acute angle direction is towards vertical (Y direction).Therefore the concave part that forms along arranging line L1 and L2 17 not only extended longitudinally but also along horizontal expansion promptly along oblique extension.Move along concave part 17 even therefore be about to see through hole 13 preceding liquid, liquid also can directly not flow to vertical and horizontal, thereby can prevent that liquid is to the diffusion of big zone.And because of the protrusion 16 that forms in the marker space 15 of rhomboid also is a lengthwise, so each protrusion 16 relative wearer's skin and sanitary napkin 1 relatively moving and be easy to generate horizontal soft the distortion along laterally (directions X).
In addition in order effectively to prevent the diffusion of liquid towards vertical and horizontal, and can follow the tracks of wearer's skin easily in horizontal action, and preferably make above-mentioned rhombohedral acute angle interior angle θ in 20～70 scopes of spending, in addition, during rhombus that the such angle of adapted forms, can also be in outward appearance, visually make marketing quality good by making surface layer.
In addition, in order to make the contact area appropriateness of each protrusion and skin, each protrusion 16 has bulkiness, and can be towards horizontal soft distortion, and preferably make the scope of intersection point distance (a rhombohedral length of side) La of arranging line L1 and L2 at 3～20mm, more preferably in 3～15mm scope, most preferably in the scope of 5～12mm.In addition, the area of separated region 15 is preferably 9～400mm
2, preferred at 20～200mm
2Scope, and the ratio of the area of the upper surface 16a of protrusion 16 and the area of above-mentioned marker space 15 is preferably in more than 60%.
In addition, the width W a of concave part 17 preferably in the scope of 2～8mm, more preferably at 2～5mm, by width being chosen as above-mentioned scope, just can effectively finishing liquid easily and carry the road function.The quantity that preferably makes the hole 13 in an above-mentioned edge lengths La in addition is more than two, below five.Setting two when above, can effectively the liquid that flows to groove 17 be guided to wick 3 from protrusion 16, and, can avoid the intensity decreases of concave part 17 below five.
And a sheet be surface patch 11 with back boxing sheet 12 in one in, preferably make from the sheet the inside of concave part 17 scope of the height of the upper surface 16a of protrusion 16, more preferably in the scope of 0.5～2mm at 0.5～5mm.If surpass above-mentioned scope, will the elastic strength of protrusion 16 be descended, the nerve variation during distortion if do not reach above-mentioned scope, then can not form the space in inside, and the resiliency of protrusion 16 is descended.
Conduct is formed with each characteristic of 1 of the surface patch 11 and the back boxing sheet 12 of protrusion 16 in addition, it is 30～80% scope that the KES fabric feeling testing machine that utilizes カ ト-テ Star Network commercial firm to make makes the compression ratio of pressure during for 4.9Kpa that is added in thickness direction, by preferably making compression ratio in 30～60% scopes, can obtain good fabric feeling.If not enough above-mentioned scope then makes the shape retention properties of protrusion 16 descend easily and becomes smoothly,, then can produce the rigidity sense if surpass above-mentioned scope.
In the above-described embodiments, if the surface patch 11 that forms has above-mentioned size and above-mentioned characteristic, can not obtain enough resiliencies even then do not dispose back boxing sheet 12 yet
Fig. 5 is the partial plan layout of figure of surface layer 20 of the absorbent commodity of expression second embodiment of the invention.
Surface layer 20 shown in Fig. 5 is also overlapping or only formed by surface patch 11 by surface patch 11 and back boxing sheet 12.According to this embodiment, each protrusion 26 is circular (or oval, Long Circles).Concave part 27 is formed around above-mentioned protrusion, each protrusion 26 is separated independently by this concave part 27.And on the bottom of concave part 27, form hole 23.
According to present embodiment, the interior zone by the circle (oval or oval) of the minimum diameter of the edge portion of protrusion 26 sides in the hole 23 of the most close protrusion 26 1 sides in each hole 23 that forms in around the groove 27 of protrusion 26 becomes marker space 25.The preferable range of the diameter D of above-mentioned zone 25 is 3～20mm, and preferred scope is 3～15mm, and most preferred scope is in the scope of 5～12mm, and the area of marker space 25 is preferably 7～314mm
2, be preferably in 20～200mm
2Scope.The upper surface area of protrusion 26 is preferably in more than 60% with the ratio of the area of above-mentioned marker space 25 in addition.
Also can make protrusion 26 have shock-absorbing capacity and make the liquid fallen on the groove 27 23 penetrate into wick 3 rapidly according to this embodiment from the hole.
Fig. 6 is the partial sectional view of the absorbent commodity (sanitary napkin) of expression third embodiment of the invention.
According to present embodiment, Fig. 2 and Fig. 3, surface layer 20 shown in Figure 4 are configured on the wick 3 by table, the opposite mode in lining, forms concavo-convex on subinverse towards surface layer 30.Promptly surface patch 11 as shown in Figures 2 and 3 becomes the back boxing sheet, and Fig. 2 and back boxing sheet 12 shown in Figure 3 become surface patch.
The part that is formed with protrusion 16 in Fig. 2 and Fig. 3 is roughly rhombohedral depressed part 31, and the part that is formed with above-mentioned groove 17 constitutes raised line 32.Yet on the top of raised line 32, form along the hole 13 of above-mentioned arranging line L1 and L2 arrangement.
In the present embodiment, the angle of arranging line L1, L2, each geometric element such as the size of marker space 15 is identical to first embodiment shown in Figure 4 with Fig. 2.
At this moment being positioned at the sheet 12 of a surperficial side and the sheet 11 of the inside one side can all be the hydrophobicity non-woven fabrics also, perhaps only make sheet 12 contain hydrophilic fibre and have hydrophilic rate gradient, also can make sheet 11 and 12 in addition both all contain hydrophilic fibre, or with the hydrophobic fiber after the hydrophilic treated form sheet 11 and 12 both.
By embodiment shown in Figure 6, in case liquid flows to depressed part 31, the imbibition ability that utilization is positioned at the wick 3 under it can make liquid see through sheet 11 and 12 back inflow wick 3.If make the fibre density height of the fibre density of raised line 32 than depressed part 31 in addition, the liquid that then flows to depressed part 31 is absorbed by convex strip portions 32, and the inside from raised line 32 imports wick 3 then.And the liquid that flows to raised line 32 sees through the inside that 13 backs, hole import raised line 32.When goo and cell etc. arrived depressed part 31, these materials were trapped in the depressed part 31, thereby can prevent that them from moving towards two directions in length and breadth.
In addition, because of convex strip portions 32 with lozenge diagram or circular pattern protuberance and skin even contact, and raised line 32 has the space in inside, thus be imbued with bulkiness and elastic return, even and convex strip portions 32 also have elastic recovery properties when swinging to width.Therefore with the softness that contacts of skin, little to the stimulation of skin.Even liquid residue is in depressed part 31 inside, because of the existence of raised line 32 makes liquid away from skin, and this liquid absorbs by convex strip portions 32 because of fibre density is different, thereby can reduce moistening and vexed wet sense.
As above-mentioned surface layer 10,20,30 manufacture method, to form the roller of protuberance of above-mentioned protrusion (depressed part) figure and the roller of the recess figure that is formed with identical figure and be preheating to 90～150 ℃, between two rollers, supply with non-woven fabrics (synusia 11 or two synusia eclipsed 11,12), apply the pressure of 49～294N to roller, on non-woven fabric plate, form protrusion (depressed part).At this moment be preferably between protuberance and the recess sheet is pressurizeed, make sheet locate compression, so that the fibre density of this part increases at groove (raised line).
Then dispose with the pin roll of the identical figure of above-mentioned convex-concave pattern and the roller that has an even surface between supply with above-mentioned and form the hole.
Also can be by being wound on the roller that disposes above-mentioned pin and forming the hole being formed with concavo-convex.
Both can form jog in addition, also can carry out concavo-convex shaping and perforate simultaneously forming by pin after the hole.
Above-mentioned in addition liquid thin film is not limited to sanitary napkin, the surface patch that can also be used as disposable diaper, urine absorbent pad and be used as the short underpants lining.
As mentioned above, according to absorbent commodity of the present invention, because surface patch is formed by non-woven fabrics and has bulkiness and with contact skin soft feeling is arranged, and because liquid is directed to concave part and convex strip portions, thereby can send wick from the hole rapidly to.
Claims (17)
1. absorbent commodity, have the surface layer of the inside sheet, transflective liquid and be clipped in above-mentioned the inside sheet and above-mentioned surface layer between liquid-adsorption layer, it is characterized in that:
Above-mentioned surface layer is formed by non-woven fabrics, and it is 9～400mm that above-mentioned surface layer has the area that bulges into convex to face side
2Protrusion and to surround above-mentioned each protrusion and to separate the groove that the state of each protrusion forms continuously, the section of surface layer forms concavo-convex, is formed with the hole of permeate body and function in above-mentioned groove;
Form the space in the inside of above-mentioned protrusion sheet one side;
The fibre density of above-mentioned concave part is than the fibre density height of above-mentioned protrusion.
2. absorbent commodity as claimed in claim 1, it is characterized in that: in above-mentioned concave part, arrange above-mentioned bore portion with the state that surrounds above-mentioned protrusion, the shape of the arranging line of above-mentioned bore portion is a rhombus, above-mentioned rhombohedral acute angle is vertical towards absorbent commodity, and the interior angle of above-mentioned acute angle is 20～70 degree.
3. absorbent commodity as claimed in claim 2 is characterized in that: a rhombohedral edge lengths that is formed by above-mentioned arranging line is 3～20mm.
4. as each described absorbent commodity among the claim 1-3, it is characterized in that: the thickness of above-mentioned surface layer is 0.5～5mm.
5. as each described absorbent commodity in the claim 1～3, it is characterized in that: in KES fabric feeling testing machine, the compression ratio when adding the pressure of 4.9Kpa on above-mentioned surface layer is 30～80%.
6. as each described absorbent commodity in the claim 1～3, it is characterized in that: in the above-mentioned surface layer at least section form concavo-convex part and overlap to form by two layers of non-woven fabrics at least, above-mentioned non-woven fabrics is above-mentioned concaveconvex shape respectively.
7. absorbent commodity as claimed in claim 6 is characterized in that: the non-woven fabrics hydrophilic height of the hydrophilicity specific surface layer of the non-woven fabrics of nexine.
8. an absorbent commodity has the inside sheet, sees through the surface layer of liquid, and is clipped in the liquid-adsorption layer between above-mentioned the inside sheet and the above-mentioned surface layer, it is characterized in that:
Above-mentioned surface layer is formed by the non-woven fabrics that sees through liquid, and it is 9～400mm that above-mentioned surface layer has towards the area of above-mentioned liquid absorption layer depression
2Depressed part and to surround above-mentioned depressed part and to separate the convex strip portions that the state of each depressed part forms continuously, the section of surface layer forms concaveconvex shape, and forms liquid drain hole in above-mentioned convex strip portions.
9. absorbent commodity as claimed in claim 8 is characterized in that: the fibre density of above-mentioned convex strip portions is than the fibre density height of above-mentioned depressed part.
10. absorbent commodity as claimed in claim 8, it is characterized in that: in above-mentioned convex strip portions, arrange above-mentioned bore portion with the state that surrounds above-mentioned depressed part, the shape of the arranging line of above-mentioned bore portion is a rhombus, above-mentioned rhombohedral acute angle is vertical towards absorbent commodity, and the interior angle of above-mentioned acute angle is 20～70 degree.
11. absorbent commodity as claimed in claim 9, it is characterized in that: in above-mentioned convex strip portions, arrange above-mentioned bore portion with the state that surrounds above-mentioned depressed part, the shape of the arranging line of above-mentioned bore portion is a rhombus, above-mentioned rhombohedral acute angle is vertical towards absorbent commodity, and the interior angle of above-mentioned acute angle is 20～70 degree.
12. absorbent commodity as claimed in claim 10 is characterized in that: a rhombohedral edge lengths that is formed by above-mentioned arranging line is 3～20mm.
13. absorbent commodity as claimed in claim 11 is characterized in that: a rhombohedral edge lengths that is formed by above-mentioned arranging line is 3～20mm.
14. as each described absorbent commodity in the claim 8～13, it is characterized in that: the thickness of above-mentioned surface layer is 0.5～5mm.
15. as each described absorbent commodity in the claim 8～13, it is characterized in that: in KES fabric feeling testing machine, the compression ratio when adding the pressure of 4.9Kpa on above-mentioned surface layer is 30～80%.
16., it is characterized in that as each described absorbent commodity in the claim 8～13: in the above-mentioned surface layer at least section form concavo-convex part and overlap to form by two layers of non-woven fabrics at least, above-mentioned non-woven fabrics is above-mentioned concaveconvex shape respectively.
17. absorbent commodity as claimed in claim 16 is characterized in that: the non-woven fabrics hydrophilic height of the hydrophilicity specific surface layer of the non-woven fabrics of nexine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP294043/2000 | 2000-09-27 | ||
| JP2000294043A JP3748763B2 (en) | 2000-09-27 | 2000-09-27 | Absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1349789A CN1349789A (en) | 2002-05-22 |
| CN1197538C true CN1197538C (en) | 2005-04-20 |
Family
ID=18776725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01139322XA Expired - Lifetime CN1197538C (en) | 2000-09-27 | 2001-09-27 | Absorbent article |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3748763B2 (en) |
| KR (1) | KR100789789B1 (en) |
| CN (1) | CN1197538C (en) |
| TW (1) | TW522833U (en) |
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| US10195092B2 (en) | 2014-03-06 | 2019-02-05 | The Procter & Gamble Company | Multi-component topsheets |
| US10206826B2 (en) | 2014-03-06 | 2019-02-19 | The Procter & Gamble Company | Three-dimensional substrates |
| US10285874B2 (en) | 2014-03-06 | 2019-05-14 | The Procter & Gamble Company | Multi-component topsheets |
| US10603229B2 (en) | 2017-02-13 | 2020-03-31 | The Procter & Gamble Company | Methods and tooling for making three-dimensional substrates for absorbent articles |
| US10918532B2 (en) | 2017-12-19 | 2021-02-16 | The Procter & Gamble Company | Methods of making elastic belts for absorbent articles |
| US11273083B2 (en) | 2017-11-06 | 2022-03-15 | The Procter & Gamble Company | Structure having nodes and struts |
| US11376169B2 (en) | 2017-05-03 | 2022-07-05 | The Procter & Gamble Company | Absorbent article having multiple zones |
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|---|---|---|---|---|
| JP4280019B2 (en) * | 2002-03-28 | 2009-06-17 | 大王製紙株式会社 | Absorbent articles |
| US7468114B2 (en) | 2002-11-13 | 2008-12-23 | Kao Corporation | Composite sheet and process and apparatus for producing the same |
| JP4559782B2 (en) * | 2004-06-30 | 2010-10-13 | 大王製紙株式会社 | Body fluid absorbent article |
| WO2007043474A1 (en) * | 2005-10-07 | 2007-04-19 | Daio Paper Corporation | Absorbent article and process for producing the same |
| JP5328089B2 (en) | 2006-06-23 | 2013-10-30 | ユニ・チャーム株式会社 | Multilayer nonwoven fabric and method for producing multilayer nonwoven fabric |
| EP2431169B1 (en) | 2006-07-07 | 2017-01-11 | Unicharm Corporation | Sheet Member, High-Density Region-Containing Sheet Manufacturing Method and Disposable Diaper Using Sheet Member |
| JP5133639B2 (en) * | 2007-09-21 | 2013-01-30 | 大王製紙株式会社 | Absorbent articles |
| CN101411657B (en) * | 2007-10-16 | 2012-08-29 | 黄振正 | Thin layer article capable of controlling flow direction and toilet articles having the same |
| JP4944743B2 (en) | 2007-11-26 | 2012-06-06 | 花王株式会社 | Composite sheet |
| JP5078602B2 (en) * | 2007-12-27 | 2012-11-21 | 花王株式会社 | Absorbent articles |
| JP5074977B2 (en) * | 2008-03-27 | 2012-11-14 | 大王製紙株式会社 | Absorbent articles |
| JP5075909B2 (en) * | 2009-12-25 | 2012-11-21 | 花王株式会社 | Absorbent articles |
| CN101914838A (en) * | 2010-06-28 | 2010-12-15 | 北京大源非织造有限公司 | Novel nonwoven fabric |
| JP2015112340A (en) * | 2013-12-12 | 2015-06-22 | 花王株式会社 | Top sheet of absorbent article and absorbent article |
| CN203841923U (en) * | 2014-03-26 | 2014-09-24 | 厦门延江工贸有限公司 | Three-dimensional non-woven fabric with open pore structures |
| JP6437877B2 (en) * | 2015-04-30 | 2018-12-12 | 日本製紙クレシア株式会社 | Absorbent articles |
| JP6329983B2 (en) * | 2016-03-24 | 2018-05-23 | 大王製紙株式会社 | Absorbent articles |
| WO2018161288A1 (en) | 2017-03-09 | 2018-09-13 | The Procter & Gamble Company | Three-dimensional materials having apertures and voids |
| JP6379248B1 (en) * | 2017-03-21 | 2018-08-22 | 大王製紙株式会社 | Absorber |
| JP7075740B2 (en) * | 2017-10-25 | 2022-05-26 | 花王株式会社 | Absorbent article |
| JP6568182B2 (en) * | 2017-11-24 | 2019-08-28 | 大王製紙株式会社 | Absorbent articles |
| KR101940215B1 (en) * | 2018-04-05 | 2019-01-18 | (주)왕보 | Hygienic goods using hydrophobic surface sheet and the manufacturing apparatus thereof |
| KR102210755B1 (en) * | 2020-03-24 | 2021-02-02 | 주식회사 업드림코리아 | Hybrid eco-friendly sanitary pad |
| DE102020119727A1 (en) * | 2020-07-27 | 2021-04-01 | Carl Freudenberg Kg | Use of an absorber material to absorb and / or distribute liquids in an actively and / or passively cooled current-carrying system |
| CN113633455A (en) * | 2021-09-09 | 2021-11-12 | 陆震海 | The new generation sanitary towel with independent blood receiving and storing functions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5223319A (en) * | 1990-08-10 | 1993-06-29 | Kimberly-Clark Corporation | Nonwoven wiper having high oil capacity |
| JP3611666B2 (en) * | 1996-05-13 | 2005-01-19 | 花王株式会社 | Absorbent articles |
| JP3408078B2 (en) * | 1996-09-20 | 2003-05-19 | 花王株式会社 | Absorbent articles |
-
2000
- 2000-09-27 JP JP2000294043A patent/JP3748763B2/en not_active Expired - Fee Related
-
2001
- 2001-09-25 TW TW090216333U patent/TW522833U/en not_active IP Right Cessation
- 2001-09-27 KR KR1020010059905A patent/KR100789789B1/en not_active IP Right Cessation
- 2001-09-27 CN CNB01139322XA patent/CN1197538C/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10195092B2 (en) | 2014-03-06 | 2019-02-05 | The Procter & Gamble Company | Multi-component topsheets |
| US10206826B2 (en) | 2014-03-06 | 2019-02-19 | The Procter & Gamble Company | Three-dimensional substrates |
| US10285874B2 (en) | 2014-03-06 | 2019-05-14 | The Procter & Gamble Company | Multi-component topsheets |
| US10603229B2 (en) | 2017-02-13 | 2020-03-31 | The Procter & Gamble Company | Methods and tooling for making three-dimensional substrates for absorbent articles |
| US10966880B2 (en) | 2017-02-13 | 2021-04-06 | The Procter & Gamble Company | Methods and tooling for making three-dimensional substrates for absorbent articles |
| US11076998B2 (en) | 2017-02-13 | 2021-08-03 | The Procter & Gamble Company | Laminates for absorbent articles |
| US11083639B2 (en) | 2017-02-13 | 2021-08-10 | The Procter & Gamble Company | Methods of making laminates for absorbent articles |
| US11246768B2 (en) | 2017-02-13 | 2022-02-15 | The Procter & Gamble Company | Laminates for absorbent articles and methods of making the same |
| US11844670B2 (en) | 2017-02-13 | 2023-12-19 | The Procter And Gamble Company | Methods of making laminates for absorbent articles |
| US11376169B2 (en) | 2017-05-03 | 2022-07-05 | The Procter & Gamble Company | Absorbent article having multiple zones |
| US11273083B2 (en) | 2017-11-06 | 2022-03-15 | The Procter & Gamble Company | Structure having nodes and struts |
| US10918532B2 (en) | 2017-12-19 | 2021-02-16 | The Procter & Gamble Company | Methods of making elastic belts for absorbent articles |
Also Published As
| Publication number | Publication date |
|---|---|
| TW522833U (en) | 2003-03-01 |
| JP2002105835A (en) | 2002-04-10 |
| KR100789789B1 (en) | 2008-01-02 |
| CN1349789A (en) | 2002-05-22 |
| KR20020025045A (en) | 2002-04-03 |
| JP3748763B2 (en) | 2006-02-22 |
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