CN2757779Y - Physiological sanitary napkins - Google Patents
Physiological sanitary napkins Download PDFInfo
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- CN2757779Y CN2757779Y CN 200420122270 CN200420122270U CN2757779Y CN 2757779 Y CN2757779 Y CN 2757779Y CN 200420122270 CN200420122270 CN 200420122270 CN 200420122270 U CN200420122270 U CN 200420122270U CN 2757779 Y CN2757779 Y CN 2757779Y
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Abstract
The utility model relates to a physiological sanitary napkin which can quickly absorb a good deal of menstrual blood flowing in the sanitary napkin within a short time, can prevent menstrual blood from inversely leaking out of a liquid absorption layer and has a powerful function of covering the color of menstrual blood. A surface structure body (20) positioned on the surface of the liquid absorption body is composed of a base layer (21) with a good liquid-permeating function and a surface layer (22) which is positioned on the surface and has a low liquid-permeating function. A plurality of protrusions (23) are formed on the surface layer (22), and side openings (35a), (35b), (37a), (37b) are arranged on the side of the protrusions (23). Menstrual blood (45) flows into the protrusions (23) from the side openings, and further permeates a liquid-permeating pore (21a) of the base layer (21) so as to be quickly absorbed by the liquid absorption layer. The protrusions (23) can prevent liquid from diffusing and prevent liquid from adhering to the skin, and can cover the color of menstrual blood.
Description
Technical field
This utility model relates to the sanitary napkin that a kind of menses are difficult to be detained the surface, can import absorbed layer rapidly.
Background technology
Sanitary napkin has liquid absorption layer and covers the permeance surface layer of the skin side surface of this liquid absorption layer.Above-mentioned surface layer is normally formed by resin film that has a plurality of liquid drain hole or liquid permeability non-woven fabrics.
The viscosity of menses of skin side surface that flows to sanitary napkin is higher, and because of the wearer with health status is different, can exist and have a large amount of menses to flow to the situation of the surface layer of sanitary napkin in the short time.
For example, under surface layer is served as reasons the situation that resin film with liquid drain hole forms,, thereby can make a large amount of menses influent absorbed layers at short notice by aperture area that enlarges each liquid drain hole and the aperture area rate that improves liquid drain hole.But, if the aperture area of liquid drain hole is opened too much and the aperture area rate is too high, because the pressure of sanitary napkin and Body contact then is seeped into the skin side surface of surface layer easily and is attached to skin by the menses that liquid absorption layer absorbed.And, see through above-mentioned liquid drain hole by menses that liquid absorption layer absorbed, be easy in sightly, give the wearer with antihygienic sensation.
Otherwise, if the aperture area of each liquid drain hole is little and the aperture area rate is low, though prevent liquid oozing easily to the surface of surface layer, and cover the color of the menses that absorb by liquid absorption layer easily, but but reduced the saturating liquid speed of surface layer, when flowing into the higher menses of a large amount of viscosity in the short time, menses remain in surface layer the skin side surface, contact with skin, easily to the wearer with uncomfortable sensation.
Like this, as the surperficial tectosome of sanitary napkin, people had both required the liquid permeability function, required to prevent the concealed function of oozing and require the menses color of liquid again.
Requirement that should be such as the surperficial tectosome of the skin side surface that is exposed to sanitary napkin, has proposed existing all sanitary towels.
The surfacing of the sanitary napkin that following patent documentation 1 is put down in writing is formed by hydrophobic film, is formed with a plurality of recesses of depression on this hydrophobic film, towards the liquid absorption layer side.Part at the rake of this recess is formed with liquid drain hole.By using this surfacing, can make menses influent absorbed layer freely, reduce from oozing also of liquid absorption layer, and cover the menses that absorb by liquid absorption layer easily.
The sanitary napkin that following patent documentation 2 to patent documentation 4 is put down in writing is as described below.The surface layer of liquid permeability is located at the skin side surface of liquid absorption layer, the continuous long strand devices spaced apart ground that extends longitudinally is fixed in the skin side surface of surface layer, is formed a plurality of ring portions of swelling in the skin side by the above-mentioned continuous long strand between this fixed part and fixed part.By a plurality of cyclic protrusion that is formed by above-mentioned continuous filament yarn is set, can make sanitary towel and wearer's the tactility of health good, even menses are seeped into the surface of surface layer from liquid absorption layer, owing to have continuous filament yarn on this surface, so menses are difficult to directly contact with skin.
The sanitary napkin that above-mentioned patent documentation 1 is put down in writing is: be formed with a plurality of recesses on the surfacing that is formed by hydrophobic film, by menses are imported in the above-mentioned recess, thereby make menses influent absorbed layer in this recess easily.But the rake of recess only is located in the perforate of surfacing, and the top of recess is not for having the flat condition of perforate.Therefore, when flowing into the higher menses of a large amount of viscosity at short notice on this surfacing, the menses in the above-mentioned recess reach capacity, and menses flow to the flat at above-mentioned top and diffusion towards periphery easily.So menses remain in the skin side surface of surfacing easily and contact with skin.
[patent documentation 1] Japanese kokai publication hei 1-34365 communique
[patent documentation 2] TOHKEMY 2002-65736 communique
[patent documentation 3] TOHKEMY 2002-65737 communique
[patent documentation 4] TOHKEMY 2002-69781 communique
The utility model content
This utility model provides a kind of sanitary napkin for solving above-mentioned existing issue.Even when flowing into a large amount of menses, also can make these menses influent absorbed layer promptly, and prevent the respond well of liquid effect of oozing and the color that covers the menses that absorbed by liquid absorption layer, and also good with the tactility of skin.
Sanitary napkin of the present utility model, surperficial tectosome with skin side surface of liquid absorption layer and covering aforesaid liquid absorbed layer, wherein: above-mentioned surperficial tectosome has the base layers and the surface layer that is positioned at the skin side surface of above-mentioned base layers of the liquid permeability of the skin side surface that covers the aforesaid liquid absorbed layer, and the side surface of skin at least of above-mentioned surface layer is formed by resin film; Form a plurality of protrusions by above-mentioned surface layer, this protrusion to skin side protuberance, is formed with the side peristome that lead to above-mentioned base layers at the sidepiece of above-mentioned protrusion from the skin side surface of above-mentioned base layers.
The surperficial tectosome of sanitary napkin of the present utility model has: cover liquid absorbent material and have the base layers of liquid function, cover the surface of this base layers, the surface layer that formed by resin film of skin side surface at least.Have the side peristome on the protrusion that is formed by surface layer, revealing under protrusion simultaneously has above-mentioned base layers.Thus, when stream has the higher menses of a large amount of viscosity at short notice, above-mentioned menses flow through above-mentioned protrusion the side peristome, flow into base layers, and see through this base layers and absorbed by liquid absorption layer.
In addition, by the formed protrusion of surface layer, can be out of shape to base layers by the deadweight of menses, thereby menses enter the side peristome with adjacent other protrusions in the side of the protrusion that is out of shape, and then flow into base layers.Thus, when stream had a large amount of menses, these menses are the influent absorbed layer promptly, can prevent its spreading at the skin side surface of sanitary napkin on a large scale.
In addition, form protrusion surface layer, the skin side is formed by resin film at least, so even menses see through base layers and ooze from liquid absorption layer, also be difficult to directly be attached to skin owing to these menses cover by surface layer.And, because the skin side surface of surface layer is formed by resin film, so can cover the color of the menses that absorbed by liquid absorption layer by surface layer, during the skin side surface of the sanitary napkin in seeing use, also can give the sensation of health.
Structure of the present utility model is: horizontal longitudinal direction devices spaced apart ground is formed with a plurality of joint-cuttings in above-mentioned surface layer upper edge, and this joint-cutting extends longitudinally being spaced laterally apart the compartment of terrain; By forming above-mentioned protrusion at the laterally adjacent above-mentioned joint-cutting and the part of the above-mentioned surface layer between the joint-cutting; Part beyond above-mentioned protrusion, above-mentioned surface layer engages with above-mentioned base layers.
In addition, structure of the present utility model is: the lateral separation of above-mentioned joint-cutting is according to the position and different, swelled by the wide width part of above-mentioned joint-cutting clamping and to form above-mentioned protrusion in the skin side, width dimensions is less than the position that is positioned at by narrow width part above-mentioned joint-cutting clamping, above-mentioned wide width part than the surface of the more close base layers in top of above-mentioned protrusion.
As mentioned above, by adding joint-cutting, can easily form above-mentioned protrusion and side peristome at surface layer.Particularly as mentioned above, be formed with wide width part and the narrow width part of dividing by joint-cutting at surface layer, in the structure of the protrusion that forms by wide width part, the part beyond protrusion, base layers is covered by above-mentioned narrow width part, or forms low protrusion from narrow width part.Thus,, can cover the whole zone of base layers simultaneously, prevent oozing of menses people liquid absorption layer easily, also cover the color of the menses that absorb by liquid absorption layer in addition easily by surface layer by surface layer with the soft-touch of the skin on surface.
In above-mentioned this utility model, above-mentioned wide width part and above-mentioned narrow width part are laterally alternately forming.
For example, this utility model can make part by the above-mentioned joint-cutting clamping of above-mentioned surface layer to the distortion of skin side by pressurization operation or pressurized, heated operation, thereby forms above-mentioned protrusion.
Perhaps, can be under the state that above-mentioned surface layer along lateral magnification, longitudinally shrinks, by above-mentioned surface layer being engaged in a plurality of positions of above-mentioned base layers, swelling and form above-mentioned protrusion towards the skin side thereby make by the part of joint-cutting and joint-cutting clamping.
Structure of the present utility model in addition is: above-mentioned surface layer be separated from each other, at a plurality of stratum zonales that vertically continuously extend, each stratum zonale engages with above-mentioned base layers at the junction surface of devices spaced apart longitudinally, and the part of the above-mentioned stratum zonale between simultaneously adjacent junction surface forms above-mentioned protrusion from base layers to skin side protuberance.
In this case, preferably adopt following structure: above-mentioned stratum zonale between adjacent stratum zonale, is provided with the covering resin thin film on the surface that covers above-mentioned base layers along being spaced laterally apart the compartment of terrain configuration.
Above-mentioned covering resin thin film can be the thin film with liquid drain hole, or also can be the thin film with liquid drain hole.But the saturating liquid function of this covering resin thin film preferably will be lower than the saturating liquid function of base layers.In above-mentioned utility model, in the part that does not have protrusion, because base layers is covered by the covering resin thin film, so can prevent menses from the oozing of Liquid Absorption course base layers surface, and cover the color of the menses that absorbed by liquid absorption layer easily by surface layer and covering resin thin film.
In above-mentioned this utility model, can above-mentioned stratum zonale be out of shape to the skin side by pressurization operation or pressurized, heated operation and form above-mentioned protrusion.
Perhaps, also can longitudinally shrink, make the interval at junction surface of surface layer and base layers longitudinally approaching mutually, thereby above-mentioned surface layer form above-mentioned protrusion from the base layers protuberance by making base layers.
This utility model also can, make sanitary napkin distortion so that during above-mentioned skin side surface depression, above-mentioned surface layer forms above-mentioned protrusion from the base layers protuberance.
Promptly, when sanitary napkin and body shape are out of shape with matching, or under the situation that the leakproof wall of longitudinally bringing into play elastic contractile force is set on the sanitary napkin, when producing depression making the flexural deformation of skin side surface by this elastic contractile force, above-mentioned surface layer erects and forms above-mentioned protrusion, is perhaps increased the bump height of protrusion by above-mentioned distortion.
In addition, structure of the present utility model can be, and is formed with perforate on the above-mentioned resin film that forms above-mentioned surface layer, expands above-mentioned perforate or the resin film that ruptures around above-mentioned perforate, thereby forms above-mentioned side peristome.
In this structure, have the surface layer of perforate by use, even particularly do not form joint-cutting, also can form above-mentioned side peristome.
In addition, in this utility model, best above-mentioned base layers is to be formed by the liquid permeable layer that saturating liquid function is higher than above-mentioned surface layer.
Because the liquid permeability of base layers is good, the influent the absorbed layer promptly thereby menses by above-mentioned side peristome can pass through base layers.In addition, because the saturating liquid function of surface layer will be lower than base layers, thereby can easily prevent menses adhering to by surface layer to skin.
In addition, this utility model, the side surface of skin at least of best above-mentioned base layers is formed by the resin film with a plurality of liquid drain hole.
By being formed base layers by resin film and form the big and high liquid drain hole of open area ratio of perforated area, thereby the menses that flow into this base layers can promptly see through liquid drain hole and be absorbed by liquid absorption layer.
In this case can, on the above-mentioned resin film of the skin side surface that is exposed to above-mentioned surface layer, be formed with liquid drain hole, the aperture area rate of the liquid drain hole of surface layer will be lower than the aperture area rate of the liquid drain hole of above-mentioned base layers.
But, also can be structure with a plurality of liquid drain hole by the formed above-mentioned protrusion of above-mentioned surface layer.
In this utility model, by the base layers of liquid permeability and at least the skin side surface be to constitute surperficial tectosome by the surface layer that resin film forms, owing to form protrusion at above-mentioned surface layer, thereby menses flow into base layers by the side peristome of protrusion, and are absorbed by liquid absorption layer easily through base layers.In addition, owing to have formed or comprise the surface layer of resin film by resin film, thereby be difficult to contact from the menses that liquid absorption layer oozes, and cover the color of the menses that absorbed by liquid absorption layer easily by above-mentioned surface layer with wearer's skin.And, owing to have a plurality of above-mentioned protrusions, thus become soft with contacting of skin.
Description of drawings
Fig. 1 represents the axonometric chart that the side surface of wearing the clothes with the sanitary napkin of the 1st embodiment of the present utility model illustrates up.
Fig. 2 represents half sectional drawing of the II-II line of sanitary napkin shown in Figure 1.
Fig. 3 represents the schematic partial sectional view of the modified example of above-mentioned sanitary napkin.
The exploded perspective view of the surperficial tectosome of the sanitary napkin of above-mentioned the 1st embodiment of Fig. 4 (A) expression, (B) sketch map of the shape of the side peristome of expression instruction card surface construction body and bottom peristome.
The exploded perspective view of the modified example of the surperficial tectosome of the sanitary napkin of Fig. 5 (A) expression the 1st embodiment, (B) section amplification figure of the B-B line of expression above-mentioned (A).
The axonometric chart of an example of the manufacture method of the surperficial tectosome of Fig. 6 (A), (B) expression the 1st embodiment of the present utility model.
Fig. 7 (A), (B) expression are used to illustrate the surperficial tectosome of the 2nd embodiment of the present utility model and the axonometric chart of manufacturing process thereof.
The axonometric chart of the manufacturing process of the surperficial tectosome of Fig. 8 (A), (B) expression the 3rd embodiment of the present utility model.
The surperficial tectosome of Fig. 9 (A), (B) expression the 4th embodiment of the present utility model and the axonometric chart of manufacturing process thereof.
Figure 10 (A), (B), the surperficial tectosome of (C) expression the 5th embodiment of the present utility model and the partial perspective view of modified example thereof.
Figure 11 represents the axonometric chart of the surperficial tectosome of the 6th embodiment of the present utility model.
Figure 12 (A), (B), (C) expression become the axonometric chart of surperficial tectosome of the modified example of each embodiment.
The specific embodiment
Fig. 1 represents the axonometric chart that the skin side surface with the sanitary napkin of the 1st embodiment of the present utility model illustrates up.Fig. 2 represents amplification half sectional drawing of the II-II line of sanitary napkin shown in Figure 1.Fig. 3 represents amplification half sectional drawing of modified example.The amplification exploded perspective view of the structure of Fig. 4 (A) presentation surface tectosome, the sketch map of the shape of the peristome of Fig. 4 (B) expression explanation protrusion.
As shown in Figure 1, the sanitary napkin 1 of embodiment of the present utility model is, vertically the length dimension of (Y direction) is greater than the horizontal elongate shape of (directions X) width dimensions, and is the left-right symmetric shape with respect to longitudinal centre line O-O.
The face shaping of sanitary napkin 1 is: be the convex curve shape towards the exterior region 1a of wearer's abdominal part with towards the hinder marginal part 1b of buttocks.Sanitary napkin 1 has the flank section 2,2 of extending along left and right sides side, the place ahead of flank section 2,2 form towards about the place ahead side edge part 1c, the 1c of convex curve shape in the outside, form towards rear side edge part 1d, the 1d of the convex curve shape of the left and right sides at the rear of flank section 2,2.
Shown in the sectional drawing of Fig. 2, the structure of sanitary napkin 1 comprises: the surperficial tectosome 20 of the skin side surface of the inside layer 3 of the liquid barrier property of the side surface of wearing the clothes of covering liquid absorption layer 4 and covering liquid absorption layer 4.This surface tectosome 20 is to be made of the base layers 21 of the skin side surface that covers aforesaid liquid absorbed layer 4 and the surface layer 22 that is positioned at the skin side surface of this base layers 21.The circumference of liquid absorption layer 4 is shown in the dotted line of Fig. 1, and liquid absorption layer 4 is except that the zone of above-mentioned flank section 2, be present in the most of regional of sanitary napkin 1.
Be provided with the side layer 5,5 of liquid barrier property in the left and right sides of sanitary napkin 1, under the state of the left and right sides of above-mentioned base layers 21 by above-mentioned the inside layer 3 and side layers 5 clampings, the inside layer 3, base layers 21 and side layer 5 bond mutually.The subtend edge 5a of portion of each side layer 5 be positioned at liquid absorption layer 4 left and right sides portion above, become Liquid Absorption zone 6 by the part of above-mentioned subtend edge 5a of portion and the subtend edge 5a of portion clamping.
Above-mentioned flank section the 2, the 2nd forms by stacked above-mentioned the inside layer 3 and side layer 5,5 and bonding.Opposition side in aforesaid liquid absorption region 6, inside layer 3 surface is formed with pressure sensitive adhesives layer 7,7, also is provided with pressure sensitive adhesives layer 8 at the skin side surface of each flank section 2.
Above-mentioned the inside layer 3 is by the resin film of polyvinyl resin of liquid barrier property etc. and form.Aforesaid liquid absorbed layer 4 is the mixtures by comminution pulp and superabsorbent polymer (SAP), or air lay paper pulp etc. form, this air lay paper pulp is will fixedly to be formed by the paper pulp of air lay method lamination by binding agent.Above-mentioned side layer 5 has the liquid barrier property, be to be formed by for example melt spraying non-woven fabrics, spun bond nonwoven fabric, the stacked lamination non-woven fabrics that forms of spun bond nonwoven fabric/melt spraying non-woven fabrics/spun bond nonwoven fabric etc., this non-woven fabrics is formed by polyethylene (PE) resin fibre, polypropylene (PP) resin fibre, polyethylene terephthalate (PET) resin fibre etc.
As shown in Figure 1, be formed with in aforesaid liquid absorption region 6 by aforesaid liquid absorbed layer 4 and base layers 21 and surface layer 22 and compress the compression groove that forms together.This compression groove is made of a pair of vertical compression groove 11,11 and the horizontal compression groove 13 of horizontal compression groove 12 in the place ahead and rear.Should extend longitudinally by vertical compression groove; The horizontal compression groove in this place ahead connects two vertical compression grooves 11,11, and forwards forms the convex pattern; The horizontal compression groove in this rear connects two vertical compression grooves 11,11, and rearward forms the convex pattern.
Middle absorbent zone 14 being surrounded by above-mentioned vertical compression groove 11,11 and the horizontal compression groove 13 of horizontal compression groove 12 in the place ahead and rear forms a plurality of protrusions 23 by above-mentioned surface layer 22.
Fig. 4 (A) amplifies the structure represented the above-mentioned surperficial tectosome 20 that is made of surface layer 22 that forms above-mentioned protrusion 23 and base layers 21.
In the sanitary napkin 1 of the 1st embodiment, base layers 21 and surface layer 22 are all formed by resin film.
The resin film that forms base layers 21 is sneaked into the inorganic filler of titanium oxide, barium sulfide, calcium carbonate etc., and is made its whitening for for example PE resin film, PP resin film etc.On above-mentioned base layers 21, arrange a plurality of liquid drain hole 21a regularly, thereby improving the liquid function.The perforated area of each liquid drain hole 21a (actual aperture area) is 0.2～30mm
2, be preferably 1～30mm
2In addition, the open area ratio of liquid drain hole 21a is about 5～40% in above-mentioned middle absorbent zone 14.
In addition, base layers 21 is preferably in the surface applied surfactant or rubs into surfactant etc. in thin film inside carries out hydrophilicity-imparting treatment, so that menses are introduced its surface, made it become easy by above-mentioned liquid drain hole 21a and then influent absorbed layer 4.
Above-mentioned surface layer 22 is low density polyethylene (LDPE) (LDPE) resin film, straight chain shape low density polyethylene (LDPE) (LLDPE) resin film, high density polyethylene (HDPE) (HDPE) resin film, PP resin film or with the resin film of above-mentioned mixed with resin; In the time of raw-material before protrusion 23 forms, use does not have liquid drain hole, almost can not bring into play the liquid materials with function.
In the embodiment in figure 1, because the part beyond the middle absorbent zone 14 that is surrounded by above-mentioned vertical compression groove 11,11 and the horizontal compression groove 13 of horizontal compression groove 12 in the place ahead and rear does not form protrusion 23, so, in the zone that does not form this protrusion 23, be preferably on the surface layer 22 and form liquid drain hole.But this liquid drain hole is littler and the aperture area rate is low than the aperture area of the liquid drain hole 21a of base layers 21.
Shown in Fig. 4 (A), the thickness of resin film is preferably 10～150 μ m, as is that 15～80 μ m are then better, so that protrusion 23 is by the deadweight distortion freely easily of menses.
In the resin film that forms surface layer 22, sneak into above-mentioned inorganic filler and make its whitening.In addition, promptly flow, preferably water-proofing treatment is carried out on the surface of surface layer 22 towards base layers 21 for making menses, and, flow into base layers 21 this purpose in order to realize menses, also can carry out hydrophilic treated on the contrary.
The protrusion 23 of surface layer 22 can be formed by the operation shown in for example Fig. 6 (A), (B).
As mentioned above, in the 1st embodiment, do not have the liquid function though become the resin film of surface layer 22, the joint-cutting 24 of linear array and the equally longitudinally joint-cutting 25 of devices spaced apart ground linear array with shown in Fig. 6 (A), being formed with longitudinally (Y direction) devices spaced apart.Each joint-cutting 24 and joint-cutting 25 are equal length in the vertical and are parallel to each other.In addition, forming with identical pitch on the same phase longitudinally.Horizontal (directions X) of joint-cutting 24 and joint-cutting 25 be spaced apart W1.
Joint-cutting 26 and joint-cutting 27 are identical at the length dimension of vertical (Y direction) with above-mentioned joint-cutting 24 and joint-cutting 25 respectively.Joint-cutting 26 and joint-cutting 27 are parallel to each other, on same phase longitudinally with identical pitch linear array.The interval of the directions X of joint-cutting 26 and joint-cutting 27 and the above-mentioned W1 that is similarly.But joint-cutting 26 and joint-cutting 27 are with respect to above-mentioned joint-cutting 24 and joint-cutting 25, in the vertical configuration phase of (Y direction) half period that staggers.
The interval of horizontal (directions X) of joint-cutting 25 and joint-cutting 26, and the interval of horizontal (directions X) of joint-cutting 27 and joint-cutting 24 is W2, W2 is more much smaller than above-mentioned interval W1 at interval.
Shown in Fig. 6 (A), a pair of joint-cutting group 24,25 and another are alternately arranged towards horizontal (directions X) joint-cutting group 26,27.And, part by joint-cutting 24 and joint-cutting 25 clampings is the 1st wide width part 31 of width dimensions W1, part by joint-cutting 26 and joint-cutting 27 clampings is the 2nd wide width part 32 of width dimensions W1, part by joint-cutting 25 and joint-cutting 26 clampings is the 1st narrow width part 33 of width dimensions W2, is the 2nd narrow width part 34 of width dimensions W2 by the part of joint-cutting 27 and joint-cutting 24 clampings.
Fig. 6 (B) expression makes the aforesaid finishing die 40 that is formed with surface layer 22 molding of a plurality of joint-cuttings.Finishing die 40 with accept mould 41 with by pressing mold 43 relative to and be provided with.Be formed with a plurality of shaping protuberances 42 on the mould 41 accepting.Each protuberance 42 of being shaped is for unidimensional with shape, above 42a to the bending of Y direction, two sides 42b, 42b are vertical plane.
Each protuberance 42 that is shaped is arranged for the 1st wide width part 31 and the 2nd wide width part 32 mutual subtend ground that make above-mentioned surface layer 22.In addition, between directions X adjacent shaping protuberance 42 and shaping protuberance 42, above-mentioned the 1st narrow width part 33 and the 2nd narrow width part 34 mutual subtends.
Pressing on the pressing mold 43, be provided with and be embedded in longitudinally the above-mentioned shaping protuberance 42 arranged and the press section 44 among the minimum clearance between the shaping protuberance 42.
The above-mentioned surface layer 22 that will be formed with a plurality of joint-cuttings is held on accepts mould 41 and by between the pressing mold 43, at normal temperatures, by accepting mould 41 and pressurizeing by 43 pairs of surface layers of pressing mold 22, or by under the state of the temperature below the softening point that is heated to the resin film that constitutes surface layer 22, to accepting mould 41 and pressurizeing by pressing mold 43, thereby shown in Fig. 4 (A), be formed with a plurality of protrusions 23 at surface layer 22.
In this embodiment, though the shape of all protrusions 23 is all identical with size, but represent to be pushed by above-mentioned shaping protuberance 42 and the protrusion that is shaped with symbol 23A, represent to be pushed by above-mentioned shaping protuberance 42 and the protrusion that forms by the 2nd wide width part 32 of joint-cutting 26 and joint-cutting 27 clampings with symbol 23B by the 1st wide width part 31 of above-mentioned joint-cutting 24 and joint-cutting 25 clampings.
Owing to above-mentioned joint-cutting group 24,25 and joint-cutting group 26,27 form along the Y direction half period that staggers, thereby above-mentioned protrusion 23A and protrusion 23B stagger half pitch and form towards the Y direction.And protrusion 23A and protrusion 23B alternately arrange towards laterally (directions X).
In Fig. 4 (A), the structure of above-mentioned protrusion 23A is described, on this protrusion 23A, be the crowned of bending corresponding to the shape of the top 42a of shaping protuberance 42 by above-mentioned joint-cutting 24 and 25 isolated the 1st wide width parts 31 of joint-cutting.
Below, will be called the edge portion that separates by the edge portion that joint-cutting is separated the surface layer that forms.Being separated from each other and the side that forms separates the edge portion that the edge 24b of portion becomes the 1st wide width part 31 of surface layer 22 by joint-cutting 24, because this separates edge 24b of portion upward away from the opposing party's the separation edge 24a of portion, thereby forms the big side peristome 35a of opening in the side of protrusion 23A.
Equally, the side that is separated from each other by joint-cutting 25 separates the edge portion that the edge 25b of portion becomes the 1st wide width part 31, because this separates edge 25b of portion upward away from the opposing party's the separation edge 25a of portion, thereby forms the big side peristome 35b of opening in the side of protrusion 23A.In addition, under the 1st wide width part 31 that forms protrusion 23A, separating the edge 24a of portion and separating formation bottom peristome 36 between the edge 25a of portion, in this bottom peristome 36, exposing has the base layers 21 that is positioned under it.
Fig. 4 (B) expression is with the shape of above-mentioned side peristome 35a, the 35b figure to the directions X projection.In addition, on the bottom peristome 36 of Fig. 4 (B), scribble hatching.
Equally, in protrusion 23B, separate the edge 26b of portion by 26 isolating sides of joint-cutting and form side peristome 37a away from the opposing party's the separation edge 26a of portion upward, form side peristome 37b away from separating the edge 27a of portion upward by 27 isolating separation edge 27b of portion of joint-cutting.In addition, under the 2nd wide width part 32 that forms protrusion 23B, between separation edge 26a of portion and the separation edge 27a of portion, have the bottom peristome 38 that base layers 21 is exposed.
Shown in Fig. 4 (A),,, be formed with front and back peristome 39a towards Y direction opening at the two end portions of the Y direction of the 1st wide width part 31, the base portion that promptly begins to erect from base layers 21 at each protrusion 23A.Similarly, at each protrusion 23B,, be formed with front and back peristome 39b towards Y direction opening at the two end portions of the Y direction of the 2nd wide width part 32, the base portion that promptly begins to erect from base layers 21.Respectively the aperture area of front and back peristome 39a, 39b is littler than the aperture area of each side peristome 35a, 35b, 37a, 37b.
The 1st narrow width part 33 between joint-cutting 25 and the joint-cutting 26 and unlike protrusion 23 high upward lifting, but be positioned at the top of protrusion 23 downside, cover the surface of base layers 21.Equally, by the 2nd narrow width part 34 of joint-cutting 27 and joint-cutting 24 clampings also high upward lifting unlike protrusion 23, but cover the surface of base layers 21.
On this surface tectosome 20, base layers 21 and surface layer 22 above-mentioned protrusion 23 (23A, 23B) in addition part and be bonded with each other.
The following describes the menses absorption function of the sanitary napkin 1 of above-mentioned the 1st embodiment.
This sanitary napkin 1, as shown in Figure 2, the skin side surface of liquid absorption layer 4 is covered by the powerful base layers 21 of saturating liquid, and be lower than the surface layer 22 of (in the 1st embodiment, not bringing into play the liquid function) above-mentioned base layers 21 in the Liquid Absorption function that this skin side surface is stacked with self, in middle absorbent zone 14, form a plurality of cyclic protrusions 23 (23A, 23B) by above-mentioned surface layer 22.
When menses flow into middle absorbent zone 14, these menses by protrusion 23A, towards side peristome 35a, the 35b of the big opening of X side, and then flow into the base layers of exposing in the bottom peristome 36 under the protrusion 23A 21.Equally, menses by protrusion 23B, towards side peristome 37a, the 37b of the big opening of directions X, and then flow into the base layers 21 that the bottom peristome 38 under the protrusion 23B exposes.
Owing to liquid drain hole 21a base layers 21, that have than large opening area forms with higher aperture area rate, so flow into the menses of above-mentioned bottom peristome 36,38, promptly absorbed by the liquid absorption layer under it 4 through the liquid drain hole 21a of base layers 21.
Fig. 4 (A) represents that schematically the higher menses of viscosity 45 flow into the state in middle absorbent zone 14.When the higher menses 45 of viscosity flowed into, the 1st wide width part 31 that forms protrusion 23A was deformed into concavity by the deadweight of menses 45 to base layers 21.After this, menses 45 flow into the side peristome 37a of the lateral protrusion 23B that is positioned at the protrusion 23A that has been out of shape, and then flow to be positioned at protrusion 23B under the base layers 21 of bottom peristome 38, and then absorbed by liquid absorption layer 4 by liquid drain hole 21a.
Therefore, even when flowing into a large amount of menses at short notice, menses flow through side peristome 35a, 35b, 37a, 37b and flow into bottom peristome 36,38, and then promptly absorbed by liquid absorption layer 4 by the base layers 21 that is exposed to this bottom peristome 36,38.
In addition, thereby even there is pressure to act on sanitary napkin is oozed out base layers 21 through the liquid drain hole 21a of base layers 21 by the menses that liquid absorption layer 4 absorbed skin side surface, but because the surface that the 1st wide width part 31, the 2nd wide width part 32 that forms protrusion 23B and the 1st narrow width part 33 between protrusion 23A, the 23B of formation protrusion 23A and the 2nd narrow width part 34 are positioned at base layers 21, so, can prevent that the menses on base layers 21 surfaces from contacting with the direct of skin.
In addition, since whitening above-mentioned surface layer 22 be positioned at the outermost of the skin side of sanitary napkin 1, so can cover the color of the menses that absorbed by liquid absorption layer 4 by above-mentioned surface layer 22, be difficult to see the menses in the use color, keep the outward appearance of health.
Bring into play the sanitary napkin 1 of this function, effective especially when following wearer moves.
When the wearer who wears this sanitary napkin 1 is sitting posture, owing to vaginal orifice suffers oppression, thus the minimizing of the output of menses.At this moment, by the pressure of crotch part, thereby the 1st wide width part 31 that constitutes protrusion 23A is out of shape, becomes the state that overlaps base layers 21 with the 2nd wide width part 32 that constitutes protrusion 23B.Thus, even by menses that liquid absorption layer 4 absorbed because pressure and liquid drain hole 21a by base layers 21 and then ooze out, ooze out but can suppress it, can reduce menses and contact, give comfortable wearing feeling with wearer's skin by above-mentioned wide width part 31,32.
When the wearer when above-mentioned sitting posture starts up, disappear towards the pressure of vaginal orifice, a large amount of menses promptly flow to the skin side surface of sanitary napkin 1.At this moment, because the pressure to sanitary napkin 1 also reduces, so, shown in Fig. 4 (A), each protrusion 23 is edge-on to skin from base layers 21, menses flow in side peristome 37a, the 37b of side peristome 35a, the 35b of protrusion 23A and protrusion 23B, and by being exposed to the base layers 21 of bottom peristome 36 and bottom peristome 38, and promptly absorbed by liquid absorption layer 4.
In the embodiment shown in Fig. 4 (A), owing to have front and back peristome 39a at the base portion of protrusion 23A, menses longitudinally mobile and that flow between protrusion 23A and the protrusion 23A flow to base layers 21 by front and back peristome 39a.This also is same being formed on the front and back peristome 39b of protrusion 23B and protrusion 23B.Therefore, can suppress the diffusion of menses, it can promptly be absorbed by liquid absorption layer 4 along horizontal longitudinal direction.
The axonometric chart of the modified example of above-mentioned the 1st embodiment of Fig. 5 (A) expression.
The surperficial tectosome 20A of sanitary napkin 1A shown in Fig. 5 (A), though its surface layer 22A and the 1st embodiment same be formed with resin film, on this surface layer 22A, but be formed with a plurality of liquid drain hole 22a.
But the perforated area of each liquid drain hole 22a is 0.2～10.0mm
2, open area ratio is about 1～25%, the saturating liquid function of surface layer 22A self will be lower than the saturating liquid function of base layers 21.
At this, saturating liquid function described in this description refers to, skin side surface at base layers 21 and surface layer 22A, when under the same conditions, when supplying with the artificial menses of same amount with identical speed, see through the flow (on the unit are and the transit dose of the artificial menses in the unit interval) of the artificial menses of layer, base layers 21 want that specific surface layer 22A's is many.
Be same thickness, same resin thin film, be subjected under the identical situation such as the condition of hydrophilic treated etc. equally at base layers 21 and surface layer 22A, the saturating liquid of the layer that the perforated area of liquid drain hole is big and open area ratio is high is powerful.But saturating liquid function also not necessarily must be according to the perforated area and the open area ratio of liquid drain hole, and is also different because of the hydrophilic ability of resin film and waterproof ability, the thickness of resin film, the shape of liquid drain hole 21a, 22a etc.
In base layers 21 and surface layer 22A is different resins thin film or different-thickness, and under the variform situation of liquid drain hole 21a, 22a, what the saturating liquid function of measuring with above-mentioned artificial menses preferably was set at the specific surface layer 22A that make base layers 21 wants high.
The flow that sees through the artificial menses of base layers 21 is preferably more than 1.5 times of flow of surface layer 22A, as is then better more than 2 times.
Above-mentioned artificial menses are: add glycerol, the hydroxymethyl cellulose sodium of 30g, the 40g sodium chloride of 300g in 1.4 liters ion exchange water, and add as required that red edible color such as red forms.
In the surperficial tectosome 20A shown in Fig. 5 (A), on surface layer 22A, be provided with longitudinally (Y direction) with the protrusion 23D of constant pitch formation and the protrusion 23E that equally longitudinally forms with a constant pitch.Protrusion 23A shown in above-mentioned protrusion 23D and Fig. 4 (A) is identical shaped, and the protrusion 23B shown in protrusion 23E and Fig. 4 (A) is identical shaped.Its difference only is: peristome 39a, 39b before and after protrusion 23A, the 23B shown in Fig. 4 (A) has respectively; And protrusion 23D, the 23E shown in Fig. 5 (A) do not have above-mentioned front and back peristome 39a, 39b, but the surface layer 22A of formation protrusion 23D, 23E replaces peristome with a plurality of liquid drain hole 22a.
In the surperficial tectosome 20A shown in Fig. 5 (A), has liquid drain hole 22a owing to form the surface layer 22A of protrusion 23D, 23E, so menses are difficult to remain in the surface of protrusion 23D, 23E.
In the various embodiments described above, on protrusion 23A, the 23B of surface layer 22,22A, 23D, 23E, be formed with side peristome 35a, 35b, 37a, 37b, by this side peristome, menses can promptly flow into base layers 21.Therefore, if base layers 21 is to prevent that by having liquid from constituting from the efficient material that liquid absorption layer 4 oozes, then surperficial tectosome 20,20A are just can be for liquid permeability good and can efficiently prevent the material that liquid oozes.
For improving the effect that liquid oozes that prevents of base layers 21, for example shown in Fig. 5 (B) (the B-B line section amplification figure of Fig. 5 (A)), each liquid drain hole 21a is made the taper hole that narrows down gradually towards liquid absorption layer 4 aperture areas, form the valve 21b that gives prominence to towards liquid absorption layer 4 in its lower end.Perhaps, in above-mentioned optimum range, reduce aperture area and the aperture area rate of liquid drain hole 21a, or base layers 21 is carried out water-proofing treatment, also can improve the effect that prevents that liquid from oozing.In addition, have the liquid drain hole 21a of above-mentioned valve 21b, its effect that covers the color of the menses that absorbed by liquid absorption layer 4 also increases.
At this, can estimate the effect that liquid oozes that prevents of base layers 21 as described below.
Flat shape for square (100 * 100mm), weight per unit area is 100g/m
2Paper pulp on, make it absorb the artificial menses of 5g, and mounting sample layer on the paper pulp and on sample layer mounting filter paper, and then filter paper upload the bottom set face be shaped as 100 * 100mm foursquare, the deadweight 5kg hammer, be equivalent to apply on filter paper the pressure of about 4.9kPa, this moment is good more to the few more effect that it prevents that liquid from oozing of the amount (diffusion area of artificial menses on the filter paper) of the artificial menses of filter paper transfer printing.
In the embodiment shown in Fig. 5 (A), be conceived to above-mentioned prevent liquid ooze under the situation of effect, as the combination of surface layer 22A and base layers 21, can obtain following combination.
(1) all do not have the combination of valve 21b for the liquid drain hole 21a of the liquid drain hole 22a of surface layer 22A and base layers 21.In this case, preferably set the aperture area of liquid drain hole 21a, 22a and aperture area rate so that the saturating liquid function of base layers 21 is better than the saturating liquid function of surface layer 22A.
This combination is applicable to that the women who is wearing this sanitary napkin mostly is stance work etc. greatly, is difficult to the use form of exerting pressure to the skin side surface of sanitary napkin.
(2) all has the combination of valve 21b for the liquid drain hole 21a of the liquid drain hole 22a of surface layer 22A and base layers 21.In this case, preferably set the aperture area of liquid drain hole 21a, 22a and aperture area rate so that the saturating liquid function of base layers 21 is better than the saturating liquid function of surface layer 22A, and surface layer 22A prevent that liquid from oozing effect and being better than base layers 21.
This combination is applicable to the use form that the women who is wearing this sanitary napkin mostly is sitting work etc. greatly, exerts pressure to the skin side surface of sanitary napkin easily.
(3) for the liquid drain hole 22a of surface layer 22A does not have valve 21b, and the liquid drain hole 21a of base layers 21 has the combination of valve 21b.In this case, preferably set the aperture area of liquid drain hole 21a, 22a and aperture area rate so that the saturating liquid function of base layers 21 is better than the saturating liquid function of surface layer 22A.In addition, can with surface layer 22A and base layers 21 to prevent that effect that liquid oozes is made as identical, perhaps also can with surface layer 22A prevent that effect that liquid oozes from setting be better than base layers 21.
This combination is applicable to work that the women who is wearing this sanitary napkin stands up repeatedly and sits down etc., requires the use form of the intermediate function of above-mentioned (1) and (2).
In the various embodiments described above, the width dimensions of directions X of wide width part 31,32 that forms surface layer 22, the 22A of above-mentioned protrusion 23 is 0.5～10mm, is preferably 1～5mm.In addition, the length dimension of vertical (the Y direction) of protrusion 23 is 3～20mm, is preferably 8～15mm.In above-mentioned scope, do not have suitable mutually sense with respect to vaginal orifice, even and owing to body damages protrusion by pressure, the also easy convex of restoring back.
Be spaced apart 0～10mm between the transversely arranged protrusion 23, be preferably 0～5mm.
The aperture area of each of above-mentioned side peristome 35a, 35b, 37a, 37b is 3～100mm
2, be preferably 10～50mm
2When the above-mentioned scope of deficiency, menses are difficult to import the inside of protrusion 23, and when surpassing above-mentioned scope, the menses that oozed out by the surface of base layers 21 are attached to skin easily.
The number of above-mentioned protrusion 23 is preferably every 100cm
2Have 50～800, as be 100～500 then better.When the above-mentioned scope of deficiency, protrusion prevents that the function that menses spread towards periphery from reducing, and menses are diffused into the surface of sanitary napkin easily.When surpassing above-mentioned scope, the number of side peristome 35a, 35b, 37a, 37b is too much, and the menses that oozed out by the surface of base layers 21 are attached to skin easily.
In the above-described embodiments, though each protrusion 23 forms same size, the size of each protrusion also can be because of the difference of position be different, also can sneak into the area protrusion of difference to some extent when the top is seen.In addition, can be following structure also: the area of protrusion that is positioned at longitudinal centre line O-O be big, and more away from above-mentioned longitudinal centre line O-O, the area of protrusion reduces step by step.
Fig. 3 represents the surperficial tectosome 20B of sanitary napkin 1B of the modified example of above-mentioned the 1st embodiment.
At this surface tectosome 20B, protrusion 23F and protrusion 23G similarly dispose towards vertical (Y direction) half pitch that staggers ground with above-mentioned protrusion 23A and protrusion 23B.The surface layer 22 (or 22A) that forms protrusion 23F and protrusion 23G is towards laterally (directions X) inclination. Protrusion 23F, 23G shown in Figure 3 have side peristome 35b, 37b significantly towards longitudinal centre line O-O, have side peristome 35a, 37a towards the edge portion of sanitary napkin lessly.Thus, at the skin side surface of sanitary napkin 1B, menses are difficult to two edge portions diffusion to about sanitary towel.
The surperficial tectosome 120 and the manufacturing process thereof of the sanitary napkin of Fig. 7 (A), (B) expression the 2nd embodiment of the present utility model.
In the 2nd embodiment, shown in Fig. 7 (A), adopt the surface layer 22 (or 22A) that forms joint-cutting 24,25,26,27.The formation method of the joint-cutting of this surface layer 22 is identical with the 1st embodiment shown in Fig. 6 (A).
In the 2nd embodiment, on the surface layer 22 that forms above-mentioned joint-cutting 24,25,26,27, apply the laterally tensile force f x of (directions X).Owing to apply this tensile force f x, thereby surface layer 22 is separated and to the directions X expansion by each joint-cutting 24,25,26,27, consequently the effect contractility fy of (Y direction) longitudinally on surface layer 22.
When acting on longitudinally contractility fy and then surface layer by layer 22 when longitudinally shrinking, the 1st wide width part 31 by joint-cutting 24 and joint-cutting 25 clampings upwards swells distortion and forms protrusion 123A, equally, the 2nd wide width part 32 by joint-cutting 26 and joint-cutting 27 clampings upwards swells distortion and forms protrusion 123B.In addition, to horizontal stretching surface layer 22 time, the 1st narrow width part 33 and the 2nd narrow width part 34 are to laterally (directions X) distortion, and this narrow width part 33,34 plays a part to connect protrusion 123A and protrusion 123B.
Apply under the state of above-mentioned tensile force f x at above-mentioned surface layer 22, the part beyond protrusion 123A, the 123B is engaged in base layers.As a result, have side peristome 135a, the 135b that leads to base layers 21 in the both sides of protrusion 123A, form side peristome 137a, the 137b that leads to base layers 21 in the both sides of protrusion 123B.
Owing to only can form this surface tectosome 120, so manufacturing process is easy by applying horizontal tensile force f x at surface layer 22 with joint-cutting.In addition, flow to the menses of surperficial tectosome 120, can flow in above-mentioned side peristome 135a, 135b, 137a, the 137b, and then see through base layers 21 and influent absorbed layer 4 promptly.
Apply the operation of horizontal tensile force f x to above-mentioned surface layer 22, with surface layer 22 when the Y direction is sent, can gently pull out by roller etc. along directions X.Perhaps also can: the surface layer 22 shown in stacked base layers 21 and Fig. 7 (A) on liquid absorption layer 4 as shown in Figure 1, by forming vertical compression groove 11,11, thereby makes tensile force f x along laterally acting on surface layer 22, and then forms above-mentioned protrusion 123A, 123B.In this case, in zone,,, thereby on surface layer 22, apply along above-mentioned horizontal tensile force f x easily then by the above-mentioned vertical compression groove 11,11 of formation if sanitary towel is partly expanded by vertical compression groove 11 and vertical compression groove 11 clampings.
Fig. 8 is the axonometric chart of manufacturing process of the surperficial tectosome of the 3rd embodiment of the present utility model.
In the 3rd embodiment, shown in Fig. 8 (A), on surface layer 22 (or 22A), be not formed with and cut off and the continuous a plurality of joint-cuttings 28 that extend in vertical (Y direction).Joint-cutting 28 is parallel to each other, and at horizontal W3 separated by a certain interval.Above-mentioned joint-cutting 28 also can be served as reasons and be formed laterally being separated by different intervals.
Fig. 8 (B) expression makes the finishing die 140 of surface layer 22 molding shown in Fig. 8 (A).Finishing die 140 with accept mould 141 with by pressing mold 143 relative to and be provided with.Be formed with a plurality of shaping protuberances 142 on the mould 141 accepting.Each protuberance 142 of being shaped is for identical shaped, and along laterally (directions X) continuously, longitudinally (Y direction) separate certain intervals and form.The top 142a of each protuberance 142 that is shaped is for forming towards the Y direction is crooked.
In addition, be provided with on by pressing mold 143 and be embedded in the above-mentioned shaping protuberance 142 longitudinally arranged and the press section 144 among the minimum clearance between the shaping protuberance 142, this press section 144 be to form continuously along horizontal (directions X).
Above-mentioned surface layer 22 shown in Fig. 8 (A) is held in accepts mould 141 and by between the pressing mold 143, at normal temperatures, by accepting mould 141 and, or under the state of the temperature below the softening point that is heated to the resin film that constitutes surface layer 22, to accepting mould 141 and by pressing mold 143 pressurizations by 143 pairs of surface layers of pressing mold 22 pressurization.By this operation, surface layer 22, form protuberance by the part of joint-cutting 28 and joint-cutting 28 clampings, and then form protrusion.
By the protrusion of this surface layer 22 and the mid portion of protrusion (part of being pushed by above-mentioned press section 144) are engaged in the surface of base layers 21, thereby form surperficial tectosome.This surface tectosome, the protrusion of shape is longitudinally arranged with a constant pitch shown in Fig. 4 (A), along laterally also becoming row to arrange.
Fig. 9 (A), (B) expression be used for the 4th embodiment of the present utility model sanitary napkin, surperficial tectosome 220 and manufacturing process thereof.
In the 4th embodiment, shown in Fig. 9 (A), adopt a plurality of stratum zonales 122 that cut off surface layer 22 (or 22A) by certain width dimensions W4.
Above-mentioned stratum zonale 122 and base layers 21 are extracted out from the Y direction, and at this moment, the draw speed V1 of stratum zonale 122 is greater than the draw speed V2 of base layers 21.Shown in Fig. 9 (B), the junction surface 221 of (Y direction) devices spaced apart engages stratum zonale 122 and base layers 21 by longitudinally.
Because the difference of above-mentioned rate of delivery, thereby between the junction surface 221 and junction surface 221 of devices spaced apart longitudinally, stratum zonale 122 swells upward and form protrusion 223A, 223B.In the embodiment of Fig. 4 (B), protrusion 223A and protrusion 223B serve as reasons and form towards vertical its arrangement cycle half pitch that staggers mutually.In addition, in the embodiment shown in fig. 9, because stratum zonale 122 is along laterally not having the compartment of terrain substantially is drawn out of and then forms above-mentioned protrusion 223A, 223B, so on the skin side surface of base layers 21, protrusion 223A, 223B are that essentially no compartment of terrain is provided with.
Therefore, can cover the menses that are seeped into the surface of base layers 21 from liquid absorption layer 4, can prevent that menses are attached to skin, and can bring into play the effect of the color that covers the menses that absorbed by liquid absorption layer 4 by above-mentioned stratum zonale 122.
Manufacturing process as the surperficial tectosome 220 shown in Fig. 9 (B) also can be implemented by following method.
As above-mentioned base layers 21, the material that uses longitudinally (Y direction) to have retractility.For example, when base layers 21 being carried out fold processing, the non-woven fabrics that the gas that will have liquid permeability and a retractility is worn type non-woven fabrics etc. partly is bonded in the side surface of wearing the clothes of base layers 21.
Making above-mentioned base layers 21 under the state of longitudinal stretching, stratum zonale 122 longitudinally is engaged in to devices spaced apart the skin side surface of base layers 21, and then forms above-mentioned junction surface 221 with retractility.After this, the pulling force that puts on base layers 21 by releasing makes base layers 21 towards vertical contraction, thereby can form protrusion 223A, the 223B shown in Fig. 9 (B).Above-mentioned the 1st embodiment to the 3 embodiment with and modified example, also have among the embodiment of explanation thereafter, same, by base layers 21 being applied pulling force, make its contraction again, thereby can form protrusion.
Figure 10 (A), (B), (C) represent the partial perspective view of other embodiment of the surperficial tectosome made by manufacturing process shown in Figure 9 respectively.
In the surperficial tectosome 220A of the 5th embodiment shown in Figure 10 (A), base layers 321 is formed by the liquid permeability non-woven fabrics.This non-woven fabrics is, make hydrophilic treated in the aspunlacednonwovenfa,ric that forms based on the hydrophilic fibre of paper pulp or artificial silk etc., with hot blast the hot-wind nonwoven cloth that fuses of the composite synthetic fibre of fusing property of heat or by hydrophilic treated the formed spun bond nonwoven fabric of synthetic resin fiber on, form a plurality of liquid drain hole and non-woven fabrics of forming etc.Perhaps, as the various embodiments described above, also can use the base layers 21 of the resin film that has formed a plurality of liquid drain hole.
By with identical manufacturing process shown in Figure 9, stratum zonale 122 longitudinally partly is engaged in to devices spaced apart base layers 321, and then forms junction surface 221, between junction surface 221 and junction surface 221, make upwards protuberance of stratum zonale 122, and then form protrusion 233A, 233B.
In the surperficial tectosome 220A shown in Figure 10 (A), protrusion 223A and protrusion 223B are along being spaced laterally apart the compartment of terrain configuration, be provided with covering resin thin film 124 on the gap between protrusion 223A and protrusion 223B, this covering resin thin film 124 is bonded in the skin side surface of base layers 321.
Above-mentioned covering resin thin film 124 is as above-mentioned surface layer 22 basic liquid-tights, perhaps, and as surface layer 22A, be formed with the less liquid drain hole 22a of aperture area and lower than the saturating liquid function of base layers 321.No matter be above-mentioned which kind of, covering resin thin film 124 all contains inorganic filler and by whitening.
When menses flow on the tectosome 220A of this surface, these menses flowed into the inside of protrusion 223A, 223B, and then were absorbed by liquid absorption layer through base layers 321.In addition, because the surface of base layers 321 is covered by protrusion 223A, 223B and covering resin thin film 124, so the menses that absorbed by liquid absorption layer 4 are difficult to be attached to skin, and can cover the color of menses by protrusion 223A, 223B and covering resin thin film 124.
The surperficial tectosome 220B of the modified example of Figure 10 (B) expression becoming the 5th embodiment.
In the tectosome 220B of this surface, base layers 321 is formed by the aggregation of band-like film, is formed with liquid drain hole on each band-like film.Stratum zonale 122 partly is engaged in the skin side surface of base layers 321, and then forms protrusion 223A, 223B.
In the tectosome 220B of this surface, the menses that flow down flow to the inside of protrusion 223A, 223B, and then see through the liquid drain hole of the few stratum zonale of stacked number and influent absorbed layer 4.In addition, because the skin side surface of base layers 321A is covered by protrusion 223A, 223B not by its saturating liquid hypofunction of part of protrusion 223A, 223B covering, so the menses that absorbed by liquid absorption layer 4 are difficult to be exuded to outermost, be difficult to contact with skin.And can cover the color of the menses that absorbed by liquid absorption layer 4.
Figure 10 (C) is the partial perspective view of surperficial tectosome 220C of the modified example of the 5th embodiment.
The skin side surface of the base layers 421 of this surface tectosome 220C is formed by the resin film 422 that forms a plurality of liquid drain hole, by hydrophilic fibre or hydrophilic treated the formed non-woven fabrics of synthetic resin fiber 423 stacked and be bonded in the side surface of wearing the clothes.Stratum zonale 122 partly be engaged in base layers 421 above, form protrusion 223A, 223B.
Above-mentioned base layers 421, be positioned at protrusion 223A, 223B under part form depression 424.Protrusion 223A and protrusion 223B between protrusion 223A and protrusion 223B, do not form depression in base layers 421 along laterally (directions X) devices spaced apart ground configuration.
When menses flow to this surface tectosome 220C, menses are from flowing into the inside of protrusion 223A, 223B at the side of the side of protrusion 223A, 223B opening peristome, these menses in arriving depression 424 back, through the liquid drain hole of base layers 421 influent absorbed layer 4.
In above-mentioned depression 424, because liquid can retain, so, by temporarily retaining these menses, thereby can prevent that menses are to horizontal diffusion in depression 424 even flow into a large amount of menses at short notice.And, on depression 424, have the stratum zonale 122 that forms protrusion 223A, 223B, so the 424 interior menses that cave in are difficult to be attached to skin.
In the various embodiments described above, utilize sanitary napkin to be deformed into bending and make each protrusion protuberance, perhaps can make the height of protrusion become big.When sanitary napkin is installed crotch part,,, maybe can make the height of protrusion become big so can form protrusion at the position of distortion because physiological napkin hollowly is out of shape to the skin side surface.
Perhaps longitudinally have the leakproof wall of elastic contractile force, the skin side surface hollowly is out of shape, thereby make above-mentioned protrusion protuberance, or make the height of protrusion become big by elastic contractile force by this leakproof wall in the skin side surface setting of sanitary napkin.
Promptly, increase the bump height of protrusion, the diffusion of menses can be prevented, the effect that prevents lateral leakage of menstrual blood can be improved in this part at the deformation place of sanitary napkin.
Figure 11 is the axonometric chart of the surperficial tectosome 520 of the 6th embodiment of the present utility model.
On this surface tectosome 520, adopt surface layer 22A with the liquid drain hole 22a shown in Fig. 5 (A) or Fig. 5 (B).Do not form joint-cutting on this surface layer 22A, this surface layer 22A supplies to the finishing die 40 shown in Fig. 6 (B), at normal temperatures, by accept mould 41 and by pressing mold 43 clampings and the pressurization.Perhaps also can be heated to the following temperature of softening point, clamping and the pressurization of resin film.By accepting the shaping protuberance 42 of mould 41, form protrusion 523A and 523B at surface layer 22A, at this moment, the liquid drain hole 22a of surface layer 22A stretches and expansion, or based on the liquid drain hole 22a that stretches, generation fracture around it, on surface layer 22A, then on protrusion 523A, form towards the side peristome 535a of the both direction perforate of directions X, on protrusion 523B, form side peristome 537a.
In this embodiment, the perforated area of side peristome 535a, 537a slightly little than the various embodiments described above.Therefore, the menses that flow into the inside of protrusion 523A and 523B are difficult to be seeped into the outside and are difficult to be attached to skin, and the liquid drain hole 21a of the following base layers 21 of menses by being positioned at protrusion 523A and 523B, are absorbed by liquid absorption layer 4 easily.
This utility model is not limited in the various embodiments described above, can carry out various modification.Figure 12 (A), (B), (C) represent the axonometric chart of other embodiment.
Surperficial tectosome 520 (B) shown in Figure 12 (B) is by being had the surface layer 22A of a plurality of liquid drain hole 22a and pressurizeing by the finishing die clamping, thereby form dome protrusion 523E, expand above-mentioned liquid drain hole 22a or fracture liquid drain hole 22a resin film on every side this moment, and then around dome base portion, form a plurality of sides peristome 536.
Shown in Figure 12 (A), (B), the shape of protrusion can be out of shape arbitrarily.And,, and can cover the color of the menses that absorbed by liquid absorption layer 4 by surface layer 22A so the menses that ooze out from base layers 21 are difficult to be attached to skin because the part beyond the protrusion of these surperficial tectosome 520A, 520B covers base layers 21.
In the various embodiments described above of the present utility model, can only form base layers and surface layer with resin film, also can form base layers and surface layer with the hydrophilic non-woven that is stacked and placed on its side surface of wearing the clothes by resin film towards the skin side surface.
Claims (15)
1. sanitary napkin has liquid absorption layer and covers the surperficial tectosome of the skin side surface of aforesaid liquid absorbed layer, it is characterized in that,
Above-mentioned surperficial tectosome has the base layers and the surface layer that is positioned at the skin side surface of above-mentioned base layers of the liquid permeability of the skin side surface that covers the aforesaid liquid absorbed layer, and the side surface of skin at least of above-mentioned surface layer is formed by resin film;
Form a plurality of protrusions by above-mentioned surface layer, this protrusion to skin side protuberance, is formed with the side peristome that lead to above-mentioned base layers at the sidepiece of above-mentioned protrusion from the skin side surface of above-mentioned base layers.
2. sanitary napkin as claimed in claim 1 is characterized in that, horizontal longitudinal direction devices spaced apart ground is formed with a plurality of joint-cuttings in above-mentioned surface layer upper edge, and this joint-cutting is being spaced laterally apart at interval, is extending longitudinally; By forming above-mentioned protrusion at the laterally adjacent above-mentioned joint-cutting and the part of the above-mentioned surface layer between the joint-cutting; Part beyond above-mentioned protrusion, above-mentioned surface layer engages with above-mentioned base layers.
3. sanitary napkin as claimed in claim 2, it is characterized in that, the lateral separation of above-mentioned joint-cutting is according to the position and different, swelled by the wide width part of above-mentioned joint-cutting clamping and to form above-mentioned protrusion in the skin side, width dimensions is positioned at position than the surface of the more close base layers in top of above-mentioned protrusion less than the narrow width part by the above-mentioned wide width part of above-mentioned joint-cutting clamping.
4. sanitary napkin as claimed in claim 3 is characterized in that, above-mentioned wide width part and above-mentioned narrow width part are laterally alternately forming.
5. as any described sanitary napkin in the claim 2 to 4, it is characterized in that, by making part by the above-mentioned joint-cutting clamping of above-mentioned surface layer, thereby form above-mentioned protrusion to the distortion of skin side.
6. as any described sanitary napkin in the claim 2 to 4, it is characterized in that, under the state that above-mentioned surface layer along lateral magnification, longitudinally shrinks, by above-mentioned surface layer being engaged in a plurality of positions of above-mentioned base layers, thereby make part form above-mentioned protrusion towards skin side protuberance by joint-cutting and joint-cutting clamping.
7. sanitary napkin as claimed in claim 1, it is characterized in that, above-mentioned surface layer be separated from each other, at a plurality of stratum zonales that vertically continuously extend, each stratum zonale engages with above-mentioned base layers at the place, junction surface of devices spaced apart longitudinally, simultaneously, the part of the above-mentioned stratum zonale between adjacent junction surface forms above-mentioned protrusion from base layers to skin side protuberance.
8. sanitary napkin as claimed in claim 7 is characterized in that, above-mentioned stratum zonale between adjacent stratum zonale, is provided with the covering resin thin film on the surface that covers above-mentioned base layers along being spaced laterally apart the compartment of terrain configuration.
9. as claim 7 or 8 described sanitary napkins, it is characterized in that, form above-mentioned protrusion by above-mentioned stratum zonale is out of shape to the skin side.
10. as any described sanitary napkin in the claim 2,3,4,7,8, it is characterized in that, by making the interval at junction surface that base layers longitudinally shrinks, makes surface layer and base layers towards vertically approaching mutually, thereby above-mentioned surface layer forms above-mentioned protrusion from the base layers protuberance.
11. as any described sanitary napkin in the claim 2,3,4,7,8, it is characterized in that, when making sanitary napkin distortion so that during above-mentioned skin side surface depression, above-mentioned surface layer forms above-mentioned protrusion from the base layers protuberance.
12. sanitary napkin as claimed in claim 1 is characterized in that, is formed with perforate on the above-mentioned resin film that forms above-mentioned surface layer, expands above-mentioned perforate or the resin film that ruptures around above-mentioned perforate, thereby forms above-mentioned side peristome.
13., it is characterized in that above-mentioned base layers is formed by the liquid permeable layer that saturating liquid function is higher than above-mentioned surface layer as any described sanitary napkin in the claim 1 to 4,7,8.
14. sanitary napkin as claimed in claim 13 is characterized in that, the side surface of skin at least of above-mentioned base layers is formed by the resin film with a plurality of liquid drain hole.
15. sanitary napkin as claimed in claim 14, it is characterized in that, be formed with liquid drain hole on the above-mentioned resin film of the skin side surface that is exposed to above-mentioned surface layer, the aperture area rate of the liquid drain hole of surface layer will be lower than the aperture area rate of the liquid drain hole of above-mentioned base layers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003421547 | 2003-12-18 | ||
| JP2003421547A JP4184253B2 (en) | 2003-12-18 | 2003-12-18 | Sanitary napkin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2757779Y true CN2757779Y (en) | 2006-02-15 |
Family
ID=34782736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420122270 Expired - Lifetime CN2757779Y (en) | 2003-12-18 | 2004-12-17 | Physiological sanitary napkins |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4184253B2 (en) |
| CN (1) | CN2757779Y (en) |
| TW (1) | TWM270791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4950808B2 (en) * | 2007-08-22 | 2012-06-13 | 株式会社リブドゥコーポレーション | Absorbent article and surface liner |
| JP4950807B2 (en) * | 2007-08-22 | 2012-06-13 | 株式会社リブドゥコーポレーション | Absorbent article and surface liner |
| JP5139774B2 (en) * | 2007-11-09 | 2013-02-06 | 株式会社リブドゥコーポレーション | Absorbent article manufacturing apparatus and manufacturing method |
| JP5139773B2 (en) * | 2007-11-09 | 2013-02-06 | 株式会社リブドゥコーポレーション | Absorbent article manufacturing apparatus and manufacturing method |
| US8728049B2 (en) * | 2008-08-08 | 2014-05-20 | The Procter & Gamble Company | Absorbent article having a tufted topsheet |
| US8153226B2 (en) * | 2009-03-31 | 2012-04-10 | The Procter & Gamble Company | Capped tufted laminate web |
| JP6092508B2 (en) | 2011-09-30 | 2017-03-08 | ユニ・チャーム株式会社 | Absorbent articles |
| US9220646B2 (en) | 2012-03-30 | 2015-12-29 | Kimberly-Clark Worldwide, Inc. | Absorbent articles with improved stain decolorization |
| US10064766B2 (en) | 2014-09-12 | 2018-09-04 | The Procter & Gamble Company | Nonwoven material having discrete three-dimensional deformations that are configured to collapse in a controlled manner |
| EP3203962A1 (en) | 2014-09-12 | 2017-08-16 | The Procter and Gamble Company | Method of making nonwoven material having discrete three-dimensional deformations with wide base openings that are bonded to additional layer |
| US20160074250A1 (en) | 2014-09-12 | 2016-03-17 | The Procter & Gamble Company | Absorbent Articles |
| BR112017005027A2 (en) | 2014-09-12 | 2017-12-05 | Procter & Gamble | non-woven material with isolated three-dimensional deformations with wide base openings and specific fiber concentrations |
| CN107073830B (en) * | 2014-10-31 | 2018-06-05 | 尤妮佳股份有限公司 | The manufacturing method of composite sheet and the manufacture device of composite sheet |
| EP3216434A1 (en) | 2016-03-08 | 2017-09-13 | The Procter and Gamble Company | Absorbent article comprising a topsheet/acquisition web laminate |
| EP3592548B1 (en) | 2017-03-09 | 2024-04-03 | The Procter & Gamble Company | Three-dimensional materials having apertures and voids |
| JP7188959B2 (en) * | 2018-09-28 | 2022-12-13 | 花王株式会社 | absorbent article |
| BR112021021083A2 (en) * | 2019-04-22 | 2022-03-03 | Fitesa Film Products Llc | Aperture extrusion coated non-woven blanket for absorbent articles and absorbent articles including the same |
| CN112972118B (en) * | 2020-12-14 | 2023-07-25 | 福建兰斯贝儿卫生用品有限公司 | Preparation method of composite absorption core body capable of conducting infiltration rapidly |
| CN112957181B (en) * | 2020-12-14 | 2023-07-25 | 福建兰斯贝儿卫生用品有限公司 | Disposable absorbent product capable of conducting downward seepage rapidly |
| JP7412025B2 (en) * | 2021-06-17 | 2024-01-12 | 第一衛材株式会社 | sanitary absorbent |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001231815A (en) * | 2000-02-24 | 2001-08-28 | Nippon Kyushutai Gijutsu Kenkyusho:Kk | Surface coating sheet of absorber product |
| JP3875008B2 (en) * | 2000-09-01 | 2007-01-31 | ユニ・チャーム株式会社 | Method for producing absorbent article having fiber layer on surface |
-
2003
- 2003-12-18 JP JP2003421547A patent/JP4184253B2/en not_active Expired - Fee Related
-
2004
- 2004-11-16 TW TW93218350U patent/TWM270791U/en not_active IP Right Cessation
- 2004-12-17 CN CN 200420122270 patent/CN2757779Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4184253B2 (en) | 2008-11-19 |
| JP2005177086A (en) | 2005-07-07 |
| TWM270791U (en) | 2005-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141217 Granted publication date: 20060215 |