CN1198554C - Absorbent article with perforated film - Google Patents
Absorbent article with perforated film Download PDFInfo
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- CN1198554C CN1198554C CNB01142785XA CN01142785A CN1198554C CN 1198554 C CN1198554 C CN 1198554C CN B01142785X A CNB01142785X A CN B01142785XA CN 01142785 A CN01142785 A CN 01142785A CN 1198554 C CN1198554 C CN 1198554C
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- Prior art keywords
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- elongated area
- porous membrane
- area
- absorbing articles
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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
- A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
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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
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
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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
- A61F13/513—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
Abstract
Provided is An absorbent article to solve such conventional problems that an open hole is collapsed and a rib part between open holes is cut into pieces because the strength of an open hole film formed by drawing a film formed by mixing a filler with a resin and forming a cell allowing steam to permeate inside the film and the open hole is reduced due to the cell. The film is formed of a resin in which a filler (13) is mixed. A drawn region (14) and a lowly drawn or not drawn region (15) are formed in the film. Many cells (16) are formed in the film in the drawn region (14) to increase a degree of steam permeation. Moreover, the strength of the film can be maintained in the lowly drawn or not drawn region (15) so that the open hole is not collapsed easily when the open hole is formed.
Description
Technical field
The present invention relates to sanitary napkin and disposable diaper, absorbing articles such as urine absorbent pad, short underpants lining particularly relate to the absorbing articles at acceptable solution side configuration porous membrane.
Background technology
As the useful porous membrane of surfacing on acceptable solution side on sanitary napkin and the disposable diaper.
The manufacture process of this porous membrane is as follows: have from the teeth outwards and permitted to supply with on the porous silk screen cylinder olefine kind resin thin film, make the remollescent inside that simultaneously resin is attracted to the silk screen cylinder of resin with hot blast, on above-mentioned resin film, form and the corresponding hole of holes of drum whereby, make simultaneously the hole around towards a side-prominent formation catheter of thin film.
In addition, be trapped on the surface of above-mentioned porous membrane, and in resin film, mix charges such as inorganic matter microparticle in advance, and this resin film is extended along uniaxial extension or along diaxon for steam is not easy.In thin film, make the boundary separation of resin and above-mentioned filling place and in thin film, produce the crack by this extension process, thereby in thin film, produce many pores (slight void).By forming above-mentioned pore, make the vapour transmission performance of thin film good, thereby reduce the delay of steam on the absorbing articles surface, reduce wearer's vexed wet sense.
Yet, above-mentioned hole thin film makes the intensity decreases of above-mentioned catheter and above-mentioned flank etc. because being formed with the space that becomes above-mentioned pore and crack on the flank on the centre position that its hole peripheral part is above-mentioned catheter and Kong Yukong.Therefore since with the touching pressure and above-mentioned catheter can be damaged by pressure of wearer's skin with the effect of the frictional force of skin, the hole is stopped up by resin, thereby the liquid permeability of porous membrane is descended, or cut off above-mentioned flank, if couple together because of thin film is disrumpent feelings between the hole, the liquid that then is absorbed the wicking receipts will return on the surface of porous membrane easily.
In addition, in the process in front, by making the resin film that is mixed with implant extend to form above-mentioned pore, in the process of back, forming on the resin film under the situation in hole by above-mentioned silk screen roller, because supply with the intensity decreases of the resin film of silk screen roller, and be not easy to form stable shaped hole.Therefore, make the area difference in each hole, there is the danger of being cut off by the suction pressure of netted roller in the flank between the Kong Yukong.
In addition, though can consider to increase the weight per unit area of thin film for the intensity that improves the thin film that is formed with above-mentioned pore, if but the weight per unit area of increase thin film will make the formation hole become difficult under the suction pressure of above-mentioned netted roller, therefore also make the stable hole of formation become difficult easily.
Summary of the invention
The present invention proposes for solving above-mentioned the problems of the prior art, its objective is provide a kind of utilize durability good, have excellent moldability and can make the absorbing articles of the porous membrane that steam be detained to reduce.
The present invention disposes the absorbing articles that forms the porous membrane of a plurality of perforates on film of synthetic resin on the surface in the zone that covers liquid-adsorption layer, it is characterized in that:
In above-mentioned porous membrane, contain granular charges, on above-mentioned porous membrane, dispose the elongated area that part is extended, with than little low extension area of the elongation of described elongated area or the non-elongated area of not extending, the part of the hole peripheral of above-mentioned at least porous membrane is positioned on above-mentioned low elongated area or the non-elongated area.
Perhaps the present invention forms longitudinal extension in the both sides in the zone that covers liquid-adsorption layer also can to it is characterized in that to the absorbing articles of the wall portion that face side erects:
The surface of above-mentioned at least wall portion is formed by the porous membrane that is formed with a plurality of perforates on film of synthetic resin;
In above-mentioned porous membrane, contain granular charges, on above-mentioned porous membrane, dispose elongated area that part extends and than little low elongated area of the elongation of described extension area or the non-elongated area of not extending.
For example, above-mentioned elongated area is band shape, above-mentioned extension area and above-mentioned low elongated area or the configuration parallel to each other of above-mentioned non-elongated area, so that staggered mutually in their position.Or above-mentioned elongated area is banded and the configuration that crosses one another, and the part of the above-mentioned elongated area encirclement that is intersected becomes above-mentioned low elongated area or above-mentioned non-elongated area.
Or from the protrusion rule or the configuration brokenly of face protuberance of above-mentioned thin film, described protrusion becomes above-mentioned elongated area.At this moment, preferably make above-mentioned protrusion outstanding towards the face side of above-mentioned porous membrane, perhaps form around the hole of above-mentioned porous membrane to the side-prominent catheter of above-mentioned liquid-adsorption layer, the part of described catheter constitutes to the outstanding protrusion of above-mentioned face side.
Perhaps on the zone of zone that covers above-mentioned liquid-adsorption layer or covering liquid-adsorption layer central part, do not dispose above-mentioned elongated area, in the zone in the above-mentioned central part outside that covers above-mentioned liquid-adsorption layer or from the outside above-mentioned elongated area of configuration, non-absorption region of liquid-adsorption layer.
In the present invention, film forming resin and the interval that above-mentioned thin film separates in the above-mentioned thin film of above-mentioned extension area make the vapour transmission property height of its vapour transmission property than above-mentioned low extension area or above-mentioned non-extension area.
For example, the mean diameter of above-mentioned implant is 0.5～30 μ m, and above-mentioned implant contains 20～70% quality of relative thin film quality.
According to the present invention, on porous membrane, form elongated area and low elongated area or non-elongated area.Because of a plurality of pores of formation on above-mentioned extension area, and this regional vapour transmission rate is improved, so can limit the delay of steam at film surface.And in low elongated area or non-extension area endogenous cause of ill improved the endurance quality of thin film, thereby make the conformality in hole become excellent, the formability in hole is also stable.
The drawing explanation:
Fig. 1 is the sectional drawing of absorbing articles of the present invention;
Fig. 2 is the key diagram of the porous membrane manufacturing process of first embodiment;
Fig. 3 is the enlarged drawing of nip rolls (ニ Star プ ロ-Le);
Fig. 4 is the enlarged drawing of mesh cylinder;
Fig. 5 is the amplification view of the thin film of part extension;
Fig. 6 is the amplification view of the porous membrane of first form of implementation;
Fig. 7 is the amplification profile diagram along VII-VII line among Fig. 5;
Fig. 8 is the amplification view of the porous membrane of second form of implementation;
Fig. 9 is the key diagram of manufacturing process of the porous membrane of the 3rd form of implementation;
Figure 10 is the enlarged drawing of acupuncture roller (ニ-De リ Application ゲ ロ-Le);
Figure 11 (A), (B) are the local amplification oblique drawings of the porous membrane of the 3rd form of implementation.
The specific embodiment
Fig. 1 is the sanitary napkin center cutting line side cross sectional view of two five equilibriums longitudinally as absorbing articles one example of the present invention.
On above-mentioned leakproof wall 6,6, engage the elastic component 7 of (Y direction) extension longitudinally respectively, contractility by this elastic component 7 makes sanitary napkin 1 to vertically becoming curved shape, and the result can make leakproof wall 6 upwards erect from the liquid side surface that is subjected to of sanitary napkin 1.
At least the part that forms leakproof wall 6 in the above-mentioned surface patch 4 of above-mentioned sanitary napkin 1 or the above-mentioned lateral plate 5 is formed by the porous membrane 10 of following explanation.The part that perhaps forms surface patch 4 and the above-mentioned leakproof wall 6 of formation is formed by porous membrane 10.
In addition, above-mentioned the inside sheet 2 is by resin permeability thin film or hydrophobicity non-woven fabrics, preferably by spunbond, the adhesive bond crossed through hydrophobic treatment, melts and sprays, non-woven fabrics such as thermal forms.Above-mentioned absorbent cores 3 is by absorbent material and super-absorbert resin formation such as wood pulps.Above-mentioned lateral plate 5 can use hydrophobic nonwoven preferably to be formed by the non-woven fabrics of crossing through hydrophobic treatment not being under the situation about being formed by above-mentioned porous membrane 10.
Fig. 2 and Fig. 3 show the manufacture process of the porous membrane 10 of first embodiment of the present invention.Fig. 5 is with the part of the part extension film that is formed with elongated area, low elongated area or non-elongated area of plan representation, and Fig. 6 is with the part of the porous membrane of plan representation.Fig. 7 is the profile along the VII-VII line of Fig. 5.
On above-mentioned porous membrane 10, form many holes 11.These holes 11 can be to form in regularly arranged mode, also form in the irregular alignment mode, as shown in figure 11,11 formation on every side outstanding catheter 12 of direction below thin film in the hole.And the opening 12a of above-mentioned catheter 12 is towards wick 3 one sides.
The thin film table of above-mentioned catheter 12, the height of lining direction are 0.3～1.0mm, if in this scope, the liquid countercurrent that then prevents from easily to be absorbed by wick 3 is to film surface.The area in each hole 11 is at 0.125～1.766mm in addition
2Scope, the area ratio/occupancy ratio in the hole 11 of porous membrane 10 is preferably 25～70%, most preferably 40～65%.If the area in each hole 11 is in above-mentioned scope, and area ratio/occupancy ratio then make the liquid that enters film surface see through wick 3 easily, and the liquid countercurrent that prevents from easily to be absorbed by wick 3 is to film surface also in above-mentioned scope.
Above-mentioned porous membrane 10 is formed by olefine kind resin, is polymer, copolymer or its mixture of selecting from the polymer of ethylene, propylene or copolymer.For example above-mentioned olefine kind resin can be by LDPE (low density polyethylene (LDPE)), LLDPE (rise low density polyethylene (LDPE)), (high density polyethylene (HDPE) or their mixture form HDPE.
The density of olefin-based resin is 0.88～0.930g/cm
3, be used for to stablize the optimal fusing flow rate that forms hole 11 and be preferably 4～20g/10 branch by the mesh cylinder.
Shown in the profile of Fig. 7, on above-mentioned porous membrane 10, be mixed with many implants 13.These implants 13 are the inorganic filler selected from mineral such as calcium carbonate, barium sulfate, calcium phosphate, Pulvis Talci, silicon dioxide or activated carbon or synthetic mineral or the micropowder of native cellulose or regenerated fiber etc.These implants 13 are insoluble, and well and the fusion temperature change during with melt extruded resin forming thin film can not make fusion or softening in the resin.
Configuration elongated area 14, the low extension or non-elongated area 15 on porous membrane 10, in embodiment shown in Figure 6, above-mentioned elongated area 14, low extension or non-extension area 15 all are banded, and all are positioned at different positions parallel to each other.
In the porous membrane shown in Fig. 6, on above-mentioned elongated area 14, thin film extends to 1.2 to 4 times along directions X, and above-mentioned low not extension that stretch or non-elongated area 15 or extension ratio are lower than above-mentioned extension area 14, and for example percentage elongation is below 1.1.
In above-mentioned elongated area 14, because thin film extends, and the border of resin and implant 13 is peeled off, and therefore form the crack, in thin film, form many pores (micro-pore) 16.In addition, low extend or non-elongated area 15 in do not form above-mentioned pore 16, even and to form above-mentioned pore 16 its pore occupation rates in thin film also little a lot of than above-mentioned elongated area 14.
Owing in elongated area 14, form the result of many pores 16, the vapour transmission rate of above-mentioned elongated area 14 extended or non-extension area 15 height than low.Though elongated area 14 steam transmitances uprise, but then, because extend or pore 16 that non-elongated area 15 forms and few, so therefore film strength height that should the zone can improve the intensity of whole porous membrane 10 low.
As shown in Figure 6, at least a portion is positioned on above-mentioned low extension or the non-elongated area 15 in the part of above-mentioned catheter 12 because the peripheral part in above-mentioned hole 11 promptly is formed with, so good shape retention of hole 11 and catheter 12, skin pressure when catheter 12 is not easy to be worn by the wearer is pressed and is collapsed, and also be not easy because of with the friction of skin in the hole 11 and 11 intermediary flanks, 18 places, hole rupture.
Because the steam transmitance in above-mentioned elongated area 14 improves, the integral vapor transmissive rate of porous chips 10 improves.For the steam that prevents porous chips 10 surfaces is detained, reduce wearer's vexed wet sense, and the non-open area that preferably makes the hole 11 that does not form porous chips 10 is that 40 ℃ and relative humidity are 60% o'clock vapour transmission rate in temperature, is 1000～4000g/m
2/ 24 hours.
In order to obtain above-mentioned steam transmitance, the film strength when further guaranteeing to form hole 11, and the width that makes whole elongated area 14 0.05～2mm preferably, but not the width of elongated area 15 is preferably 3～20mm.So the area ratio/occupancy ratio of extension area 14 is preferably 5～30%.In order to improve the vapour transmission rate and preferably to make the mean diameter of above-mentioned implant 13 by formation pore 16 in elongated area 14 is 0.5～30 μ m, and preferred mean diameter is 0.5～15 μ m, most preferably 0.5～10 μ m.In addition, preferably the quality of contained above-mentioned implant is 20～70% on above-mentioned porous membrane 10, and preferred quality is 30～60%.
For by making porous membrane 10 become the color of white, and can make it contain dye substance with hidden menses that absorbed by wick 3 etc.The mean diameter of this dye substance is 0.1～0.5 μ m, and its amount is to be 2～7% quality, and the weight per unit area of whole porous membrane 10 is considered preferably 20～60g/m from obtaining good formability
2, be more preferably 25～40g/m
2
In porous membrane shown in Figure 6 10,, then can suppress its surperficial steam delay because of having elongated area 14 if form the surface patch 4 and/or the leakproof wall 6 of sanitary napkin shown in Figure 11.And low extend or non-elongated area 15 in because the durability of thin film and intensity height, and can prevent, and also be not easy to make flank 18 to rupture by this low extends or non-elongated area 15 forms the subsiding of above-mentioned catheter 12 of its part.
Fig. 2 shows an example of the manufacture method of above-mentioned porous membrane 10.In the technology shown in Fig. 2, melt extruded machine by having resin material and the forming section of shaping dies 21 form the thin film 10a of olefin-based resins etc.
Above-mentioned thin film 10a is clipped between clamp roll 22 and 23, as shown in Figure 3, forms the protuberance 22a of figure of the elongated area 14 of corresponding diagram 5 and 6 on a nip rolls 22, forms the recess 23a of corresponding raised part 22a on another nip rolls 23.
During by above-mentioned nip rolls 22 and 23 crampings, on above-mentioned nip rolls 22 and 23, be used to the preheating that makes thin film 10a remollescent 60 °～120 ℃ at above-mentioned thin film 10a.Because the result of above-mentioned cramping extends thin film 10a partly on the part of raised part 22a and recess 23a cramping, as shown in Figure 5, form the extension film 10b that elongated area 14 and low elongated area or non-elongated area 15 alternately form.
Then supply with above-mentioned part extension film 10b to mesh cylinder 24.As shown in Figure 4, on above-mentioned mesh cylinder 24, form the shaped hole 24a corresponding with the configuration figure in hole 11.Supply with mesh cylinder 24 part extension film 10b on every side and heated, and part extension film 10b inwardly is attracted in the shaped hole 24a, form hole 11 and catheter 12 from the suction pressures in the mesh cylinder 24 by hot blast.And form as shown in Figure 6 open thin film 10.
Fig. 8 shows the porous membrane 10A of second embodiment of the present invention.In this perforated film 10A, banded extension area 14a and 14b intersect to form crosswise.Part by above-mentioned banded elongated area 14a and 14b encirclement forms low the extension or non-elongated area 15.The peripheral part in above-mentioned hole 11 is that at least a portion of catheter 12 is positioned on low extension or the non-elongated area 15.Therefore, the dimensionally stable in hole 11, catheter 12 are not easy to be subsided by the pressure of wearers skin pressure, and hole 11 also is not easy to subside.
The protuberance 22a that the porous membrane 10A of embodiment shown in Figure 8 can be by making above-mentioned nip rolls 22 and the recess 23a of nip rolls 23 make at the formation crosswise axially and under the Rack of circumferencial direction of roller.
Figure 11 (A) (B) shows the porous chips 10B and the 10C of third embodiment of the invention.
In the embodiment shown in Figure 11 (A), on the flank 18 beyond the hole 11 of porous membrane 10B, form towards the protrusion 19a that extends with catheter 12 equidirectionals, this protrusion 19a becomes the elongated area of thin film, and the catheter 12 and the flank 18 that form above-mentioned protrusion 19a become low the extension or non-extension area.In the embodiment shown in Figure 11 (A), because thin film extends at above-mentioned protrusion 19a place, and make thin film and resin isolation the implant 13 of protrusion 19a in, and so crackle takes place and form many pores 16.Therefore can improve the vapour transmission rate among the above-mentioned protrusion 19a.
In the porous membrane 10C shown in Figure 11 (B), protrusion 19b promptly extends with the rightabout of catheter 12 towards surface direction, and this protrusion 19b not only forms flank 18 between hole 11 and hole 11, but also gives prominence to from the part of catheter 12.So this protrusion 19b becomes the elongated area, form many pores 16, the vapour transmission rate of the part of protrusion 19b is improved.
In the porous membrane shown in Figure 11 (B), though protrusion 19b is side-prominent to wearer's skin, but, and become the state of softish protrusion 19b that make, thereby can be flexibly and contact skin with small size and contact skin because this protrusion 19b becomes the soft section with pore 16.In addition, also can make these protrusions 19a, 19b play catheter by making the leading section opening of protrusion 19a shown in Figure 11 (A), (B) and 19b.
Fig. 9 and Figure 10 are examples of the manufacture method of the porous membrane 10B shown in expression Figure 11 (A).
At first the thin film 10a that is shaped by thin film 21 is as shown in Figure 9 supplied with mesh cylinder 24, just can obtain to be formed with the porous membrane 10d of many holes 11 and catheter 12.Then, supply with acupuncture roller 25.As shown in Figure 10, on the outer peripheral face of acupuncture roller 25, form many protruding 25a, this projection 25a towards front end so that the mode that basal area diminishes form.And on acupuncture roller 25, carry out 60～120 ℃ preheating.
Form porose 11 porous membrane 10d pressurization, thin film is deformed in inside and produce internal stress, be extended and form protrusion 19a by the projection 25a of acupuncture roller 25.At this moment, the interfacial separation of implant 13 and resin as beginning to take place the crack, goes up formation pore 16 at protrusion 19a (19b too).
In addition, according to the present invention, can make the elongated area form different shape and zone.For example, on the surface patch 4 of sanitary napkin shown in Figure 11, do not form the middle section of width W 2 or be the elongated area of extending on the absorption region of W1 at width dimensions, but this part thin film is extended or non-elongated area 15 as low, the conformality of retaining hole 11, all or part of of non-absorption region by the outer peripheral portion of the outer peripheral portion of above-mentioned central area or above-mentioned absorption region being of a size of W3 can prevent to be detained at the steam of this part as the elongated area.
On the outer peripheral portion of the catheter 12 in hole 11, can form the elongated area of rib shape in addition.
Above-mentioned in addition porous membrane not only can be used as the surfacing of sanitary napkin, but also can be used as the surfacing use of disposable diaper or urine absorbent pad, can also use as the surfacing of short underpants lining.
Embodiment
Utilization is 0.915g/cm to density
3, quality is that 40% LLDPE is that 3 μ m, quality are 60% the blended material of calcium carbonate with the mean diameter of using as packing material, is 35g/m with obtaining weight per unit area after melt extruded machine and the Mould Machining
2Thin film.
Then, to the occupied area of protuberance with the wide 0.25mm that extends towards the protuberance of the axially extended wide 0.1mm of roller and recess and towards circumferencial direction and recess and protuberance is that 14% nip rolls carries out 80 ℃ of preheatings, and above-mentioned thin film is extended under the effect of roll-in 49N partly.
Whole vapour transmission rates of this part extension film are 2573g/m
3/ 24 hours, making the wide thin film of each inch was that vertical (MD) tensile strength when stretching under 100mm/ divides is 10.9N in speed, and the tensile strength of horizontal (MD) is 6.3N.
Above-mentioned part extension film is supplied with the mesh cylinder, be attracted pressure and attract after preheating under 200 ℃ of hot blasts, obtaining open area ratio is 61%, and the height dimension of catheter is the porous membrane of the shape same as shown in Figure 8 of 0.42mm.
Making the porous membrane that obtains is that vertical (MD) tensile strength when stretching under the state that divides of 100mm/ is 7.4N 1 inch wide and speed, laterally (MD) tensile strength is 2.0N, and have found that, compression ratio when applying the pressure of 4900Pa on KES fabric feeling testing machine is 33%, has anti-and persistency contact skin pressure.
As mentioned above, be used in the vapour transmission rate height of the porous membrane on the absorbing articles of the present invention, and the bulk strength of thin film and durability height, as at least a portion around the hole is positioned on low extension or the non-elongated area, the shape that then keeps catheter easily, Kong Buhui subsides, and flank can not rupture yet.
Claims (10)
1. an absorbing articles disposes the porous membrane that forms a plurality of perforates on film of synthetic resin on the surface in the zone that covers liquid-adsorption layer, it is characterized in that:
In above-mentioned porous membrane, contain granular implant, on above-mentioned porous membrane, dispose elongated area that part extends and than little low elongated area of the elongation of described elongated area or the non-elongated area of not extending, the part of the hole peripheral of above-mentioned at least porous membrane is positioned on above-mentioned low elongated area or the non-elongated area.
2. absorbing articles forms longitudinal extension in the both sides in the zone that covers liquid-adsorption layer and can it is characterized in that to the wall portion that face side erects:
The surface of above-mentioned at least wall portion is formed by the porous membrane that is formed with a plurality of perforates on synthetic resin;
In above-mentioned porous membrane, contain granular implant, on above-mentioned porous membrane, dispose elongated area that part extends and than little low elongated area of the elongation of described elongated area or the non-elongated area of not extending, the part of the hole peripheral of above-mentioned at least porous membrane is positioned on above-mentioned low elongated area or the non-elongated area.
3. absorbing articles as claimed in claim 1 or 2 is characterized in that: above-mentioned elongated area is banded, and above-mentioned elongated area and above-mentioned low elongated area or the configuration parallel to each other of above-mentioned non-elongated area are so that stagger them mutually.
4. absorbing articles as claimed in claim 1 or 2 is characterized in that: above-mentioned elongated area is banded and the configuration that crosses one another, and the part that the above-mentioned elongated area that is intersected surrounds becomes above-mentioned low elongated area or above-mentioned non-elongated area.
5. absorbing articles as claimed in claim 1 or 2 is characterized in that: from the protrusion rule or the configuration brokenly of face protuberance of above-mentioned thin film, described protrusion becomes above-mentioned elongated area.
6. absorbing articles as claimed in claim 5 is characterized in that: above-mentioned protrusion is outstanding towards the face side of above-mentioned porous membrane.
7. absorbing articles as claimed in claim 6 is characterized in that: form around the hole of above-mentioned porous membrane to the side-prominent catheter of above-mentioned liquid-adsorption layer, the part of described catheter constitutes to the outstanding protrusion of above-mentioned face side.
8. absorbing articles as claimed in claim 1, it is characterized in that: on the zone of zone that covers above-mentioned liquid-adsorption layer or covering liquid-adsorption layer central part, do not dispose above-mentioned elongated area, in the zone in the above-mentioned central part outside that covers above-mentioned liquid-adsorption layer or from the outside above-mentioned elongated area of configuration, non-absorption region of liquid-adsorption layer.
9. absorbing articles as claimed in claim 1 or 2, it is characterized in that: the interval that film forming resin and above-mentioned implant are separated in the above-mentioned thin film of above-mentioned elongated area makes the vapour transmission property height of its vapour transmission property than above-mentioned low extension area or above-mentioned non-extension area.
10. absorbing articles as claimed in claim 1 or 2 is characterized in that: the mean diameter of above-mentioned implant is 0.5～30 μ m, and the quality of contained above-mentioned implant is 20～70% on the above-mentioned thin film.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000294024A JP3922872B2 (en) | 2000-09-27 | 2000-09-27 | Absorbent article having an apertured film |
| JP294024/2000 | 2000-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1349790A CN1349790A (en) | 2002-05-22 |
| CN1198554C true CN1198554C (en) | 2005-04-27 |
Family
ID=18776714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01142785XA Expired - Fee Related CN1198554C (en) | 2000-09-27 | 2001-09-27 | Absorbent article with perforated film |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3922872B2 (en) |
| KR (1) | KR100764579B1 (en) |
| CN (1) | CN1198554C (en) |
| TW (1) | TW515281U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9957369B2 (en) * | 2013-08-09 | 2018-05-01 | Kimberly-Clark Worldwide, Inc. | Anisotropic polymeric material |
| JP5863890B2 (en) * | 2014-06-30 | 2016-02-17 | ユニ・チャーム株式会社 | Absorbent articles |
| JP2020049084A (en) * | 2018-09-28 | 2020-04-02 | 花王株式会社 | Absorbent article |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0589053A (en) * | 1991-09-30 | 1993-04-09 | Sharp Corp | Portable information processor |
| JP3594098B2 (en) * | 1994-09-02 | 2004-11-24 | 花王株式会社 | Sanitary napkin |
| EP0979728A1 (en) * | 1998-08-12 | 2000-02-16 | The Procter & Gamble Company | Improved mechanically strainable composite laminated structure |
-
2000
- 2000-09-27 JP JP2000294024A patent/JP3922872B2/en not_active Expired - Fee Related
-
2001
- 2001-09-27 CN CNB01142785XA patent/CN1198554C/en not_active Expired - Fee Related
- 2001-09-27 KR KR1020010059895A patent/KR100764579B1/en not_active IP Right Cessation
- 2001-09-27 TW TW090216575U patent/TW515281U/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP3922872B2 (en) | 2007-05-30 |
| TW515281U (en) | 2002-12-21 |
| KR20020025044A (en) | 2002-04-03 |
| KR100764579B1 (en) | 2007-10-09 |
| JP2002102284A (en) | 2002-04-09 |
| CN1349790A (en) | 2002-05-22 |
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