CN1732874A - Absorbent article - Google Patents
Absorbent article Download PDFInfo
- Publication number
- CN1732874A CN1732874A CNA2005100885788A CN200510088578A CN1732874A CN 1732874 A CN1732874 A CN 1732874A CN A2005100885788 A CNA2005100885788 A CN A2005100885788A CN 200510088578 A CN200510088578 A CN 200510088578A CN 1732874 A CN1732874 A CN 1732874A
- Authority
- CN
- China
- Prior art keywords
- absorbent layer
- absorber
- upper absorbent
- laminated portions
- apparent density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
- A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
- A61F13/533—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
Abstract
The absorbent article 1 of the present invention includes a skin abutting surface 2, a non-skin abutting surface 3 and an absorber 4 interposed between both of the surfaces. The absorber 4 includes a layered part 40 where an upper absorption layer 41 and a lower absorption layer 42 are layered, and the upper absorption layer 41 is positioned on the side of the skin abutting surface. The layered part 40 of the absorber 4 is constituted in such a way that the apparent density of the lower absorption layer 42 is lower than that of the upper absorption layer 41 under loading of 0.5g/cm<2>, and the apparent density of the lower absorption layer 42 is not lower than that of the upper absorption layer 41 under loading of 20g/cm<2>.
Description
Technical field
The present invention relates to the absorbent commodity of sanitary napkin, knickers back boxing, incontinence pad etc.
Background technology
As with the relevant conventional art of absorbent commodity of sanitary napkin etc., in the Japan Patent 2004-121382 communique (hereinafter referred to as document 1), put down in writing a kind of like this absorbent commodity, it possesses absorber, this absorber has the upper strata that is configured in the surfacing side and is configured in the lower floor of backing material side, and the density of this lower floor is than the density height on upper strata.And, also put down in writing in the document 1 as the concrete mode that lower floor's density is improved, promptly be processed to form recess by embossing.
And, in the Japan Patent 2003-33397 communique (hereinafter referred to as document 2), put down in writing a kind of like this absorbent commodity, this absorbent commodity has disposed the embossing recess of plan view shape for not containing straight line and not having pit shape on absorber.
But, in the absorbent commodity of document 1 record, owing to implement embossing processing,, can not fully improve stickiness with wearer's excretory portion etc. so if the upper strata absorbs liquid, then sink in this upper strata on the upper strata of absorber.
And the absorbent commodity of document 2 record is not owing to form the embossing recess on the position corresponding with excretory portion, so the same with document 1, absorber also can sink on the position of corresponding excretory portion, thereby can not improve the stickiness with excretory portion.And, in the absorbent commodity of document 2 records, also be provided with on the absorber at corresponding excretory portion position under the situation of embossing recess, then the flexibility at this position can suffer damage.
Summary of the invention
Thus, the objective of the invention is to, a kind of absorbent commodity is provided, it can contact with softnesses such as excretory portions and fit well with it, even in wearing, also can keep its stickiness well, and the imbedibility of liquid is also good.
The present invention is by providing a kind of like this absorbent commodity, to achieve the above object, this absorbent commodity has skin contact surface, non-skin contact surface and is sandwiched in absorber between these two faces, above-mentioned absorber has the laminated portions that upper absorbent layer and lower absorbent layer are laminated, upper absorbent layer is positioned at above-mentioned skin contact surface one side, lower absorbent layer is positioned at above-mentioned non-skin contact surface one side, and the above-mentioned laminated portions of above-mentioned absorber is formed: at 0.5g/cm
2Under the load, the apparent density of lower absorbent layer is lower than the apparent density of upper absorbent layer, at 20g/cm
2Under the load, the apparent density of lower absorbent layer is identical with the apparent density of upper absorbent layer or than the apparent density height of upper absorbent layer.
The effect of invention
Absorbent commodity of the present invention can flexibly contact with excretory portion etc. and fit well with it, even in wearing, also can keep its stickiness well, and the imbedibility of liquid is also good.
Description of drawings
Fig. 1 is the vertical view that illustrates as the sanitary napkin of an embodiment of the invention.
Fig. 2 (a) and Fig. 2 (b) are respectively the constructed profiles that schematically shows the X-X line section of Fig. 1, and Fig. 2 (a) is the state that illustrates under the no-load in fact, and Fig. 2 (b) is the figure that the state of dress is shown.
Fig. 3 is separated into upper absorbent layer and lower absorbent layer with the absorber on the sanitary napkin of Fig. 1, and the vertical view when non-skin contact surface one side is observed it.
Fig. 4 (a)～Fig. 4 (e) is the constructed profile that the width section of absorber in other embodiments of the present invention is shown.
The specific embodiment
Below, based on its preferred implementation the present invention is described.
, shown in Fig. 1, Fig. 2 (a) and Fig. 2 (b), have skin contact surface 2, non-skin contact surface 3 and be sandwiched in the absorber 4 of the liquid retainability between these two faces as the sanitary napkin 1 of an embodiment of the invention (below be also referred to as this sanitary towel 1).Skin contact surface 2 be when wearing towards the face of wearer's skin one side, non-skin contact surface 3 is towards the face of a side opposite with wearer's skin side when wearing.
On the back-sheet 31 that forms non-skin contact surface 3, bonding agent is coated in reservation shape, forms anti-dislocation layer (not shown).Anti-dislocation layer is used for sanitary towel 1 is fixed on wearing articles such as medicated underpants, before use, when this anti-dislocation layer is protected to use by peeling paper with through fractional pack of lift-off processing with sheet material (not shown) till.
As the formation material of absorber 4, preferably use material of fiber aggregate or itself and macromolecule water uptake polymer and usefulness etc.Fiber as constituting fiber aggregate can use fluff pulp fibers hydrophilic fibre, synthetic fibers (preferably having implemented the synthetic fibers of hydrophilicity-imparting treatment) etc. such as (パ Le プ Xian Victoria).Material of fiber aggregate or itself and macromolecule water uptake polymer and usefulness etc. can coat with the cladded sheet materials of the water penetration of the formation such as non-woven fabrics of thin paper, water penetration.The macromolecule water uptake polymer can layeredly exist, and also can form the state mixed with fluff pulp fibers etc.The macromolecule water uptake polymer preferably has the maintenance performance of the liquid more than 20 times that can absorb and keep its deadweight, and for having the particle shape of gelatination property, for example, can compatibly list starch-acrylic acid (salt) graft copolymer, starch-acrylonitrile copolymer saponified, cross-linking sodium carboxymethyl cellulose, acrylic acid (salt) polymer etc.
Shown in Fig. 1, Fig. 2 (a) and Fig. 2 (b), the absorber 4 in this sanitary towel 1 has the laminated portions 40 that upper absorbent layer 41 and lower absorbent layer 42 are laminated at the central part of the width of sanitary towel 1.In laminated portions 40, upper absorbent layer 41 is positioned at skin contact surface 2 one sides, and lower absorbent layer 42 is positioned at non-skin contact surface 3 one sides.Laminated portions 40 in this sanitary towel 1 is formed on the length direction of sanitary towel 1 and is partial to slightly on the position of leading section or rearward end.
Laminated portions 40 in this sanitary towel 1 is formed on the relative portion of excretory portion of wearer's the relative configuration of excretory portion when wearing.In sanitary towel 1 or other absorbent commodities, the position of laminated portions 40 is according to suitably decisions such as the position residing positions corresponding with wearer's excretory portion.
The laminated portions 40 of the absorber 4 in this sanitary towel 1 is formed in 0.5g/cm
2Under the load, the apparent density of lower absorbent layer 42 (See hangs け density) is lower than the apparent density of upper absorbent layer 41, at 20g/cm
2Under the load, the apparent density of the apparent density of lower absorbent layer 42 and upper absorbent layer 41 is identical or than the apparent density height of upper absorbent layer 41.
So-called at 0.5g/cm
2Load under instigate before the dress or sanitary towel's (absorbent commodity) in when beginning dress contacts pressure under the state of skin lightly.So-called at 20g/cm
2Load under refer to sanitary towel's (absorbent commodity) is fixed on the wearing article such as medicated underpants the pressure under the state that wears.What both supposed all is resting state.
In sanitary towel 1, at 0.5g/cm
2Under the load (following also claim under the low pressure), the apparent density of lower absorbent layer 42 is lower than the apparent density of upper absorbent layer 41, therefore when wearing sanitary towel 1, lower absorbent layer 42 flexibly is out of shape by depressing on thickness direction upper absorbent layer 41, therefore, the soft-touch of laminated portions 40 contact wearer skin, and, because of its good morphotropism, can make it to be fitted in well on excretory portion etc.
And drained liquid is sucked by upper absorbent layer glibly, and even after upper absorbent layer 41 absorbed liquid, this upper absorbent layer 41 also was not easy to sink, the thickness of upper absorbent layer 41 and laminated portions 40 and shape are kept with being stabilized in wearing.Therefore, in wearing, the stickiness with respect to excretory portion etc. of laminated portions 40 is kept well.
On the other hand, at 20g/cm
2Under the load (following also the title wears under the state), it is identical or bigger than the apparent density of upper absorbent layer 41 with the apparent density of upper absorbent layer 41 that the apparent density of lower absorbent layer 42 becomes, therefore wearing under the state, because density gradient, liquid flows to lower absorbent layer 42 and is sucked glibly from upper absorbent layer 41.Therefore, though absorber 4 under the state that has absorbed liquid to a certain degree, also not conference occur liquid from absorber 4 to problems such as skin contact surface backflows, can access dry and comfortable comfortable adherent feeling.
Sink after above-mentioned absorbed layer 41 from absorbing liquid from preventing, and improve the flexibility when wearing sanitary towel 1, the viewpoint of stickiness, further, under low pressure and wear the apparent density that makes under the state between upper absorbent layer 41 and the lower absorbent layer 42 and reverse (comprising the situation that becomes identical) and become possibility, and the good imbedibility of 42 pairs of liquid of realization lower absorbent layer, from this viewpoint, that under low pressure, the apparent density ρ A of the upper absorbent layer 41 of laminated portions 40 is suitable is 0.05～0.25g/cm
3, be more preferably 0.08～0.20g/cm
3, that best is 0.10～0.15g/cm
3, that the apparent density ρ B of lower absorbent layer 42 is suitable is 0.05～0.20g/cm
3, be more preferably 0.05～0.15g/cm
3, that best is 0.08～0.12g/cm
3, what both ratios (ρ A/ ρ B) were suitable is 1.05～5.0, is more preferably 1.1～3.0, best is 1.2～2.0.
From wearing realization better fluid imbedibility and anti-non-return fluidity under the state, and the viewpoint that the relation that under low pressure makes above-mentioned ρ A＞ρ B is set up is set out, wearing under the state, that the apparent density ρ A ' of the upper absorbent layer 41 of laminated portions 40 is suitable is 0.05～0.25g/cm
3, be more preferably 0.08～0.20g/cm
3, that best is 0.10～0.15g/cm
3, that the apparent density ρ B ' of lower absorbent layer 42 is suitable is 0.07～0.3g/cm
3, be more preferably 0.10～0.25g/cm
3, that best is 0.12～0.20g/cm
3, what both ratios (ρ A '/ρ B ') were suitable is 0.20～1.0, preferably 0.3～0.90.
And, from under low pressure with (being liquid imbedibility stabilisation) with low uncertainty of wearing the liquid imbedibility under the state, suppressing change of shape sets out the viewpoint of partial stickiness stabilisation, upper absorbent layer 41 under low pressure with the ratio of wearing the apparent density under the state (ρ A/ ρ A ') suitable be 1.0～2.0, be more preferably 1.05～1.5, best is 1.05～1.3.From improving resiliency, and improve from upper absorbent layer 41 to the ambulant viewpoint of the liquid of lower absorbent layer 42, lower absorbent layer 42 under low pressure with the ratio of wearing the apparent density under the state (ρ B/ ρ B ') suitable be 1.1～3.0, preferably 1.2～2.5.
The assay method of the apparent density of upper absorbent layer 41 and lower absorbent layer 42 below is described.
The assay method of the apparent density the under＜load 〉
With compression test (for example, the portable compact testing machine " KES-G5 " of KATO TECH corporate system etc.), on thickness direction the laminated portions of absorber being compressed to load with the speed of 0.2mm/sec becomes 20g/cm
2By each kymogram, load is become 0.5g/cm
2The time and load become 20g/cm
2The time the thickness of laminated portions measure (perhaps being to measure after the form that can read such as computer) with the data setting of compression test.Measure and use 3 samples to carry out altogether 3 times, with " the apparent thickness " of average result as each time point.Then, the laminated portions of cutting off absorber (at this moment, is used sharp cut-outs such as cutter, the state of section is not changed with cut-out is preceding.Used the product of Feather Safety Shaver Co., Ltd., be numbered FAS-10), with acrylic panel etc. upper surface or lower surface are clamped, make section meet " the apparent thickness " of each time point by adjusting load.Microscope (VH8000) with Keyemce (KEYENCE) corporate system is observed, and has measured upper surface (face of skin contact surface one side) from upper absorbent layer respectively to boundary face, and thickness from the boundary face of lower absorbent layer to non-skin contact surface.And, measured the weight of upper absorbent layer and lower absorbent layer respectively, from this gravimetry and above-mentioned such thickness of measuring, try to achieve the apparent density under each load.
As Fig. 2 (a), Fig. 2 (b) and shown in Figure 3, in this sanitary towel 1, the upper absorbent layer on the laminated portions 40 41 has been implemented embossing processing, thus, the density of upper absorbent layer 41 (embossing add outside the Ministry of worker too) is enhanced, even load increases, the variation of density is also few.
Particularly, on the face of lower absorbent layer 42 1 sides of the upper absorbent layer 41 of laminated portions 40, by embossing processing, rounded extruding recess 41a when forming a plurality of overlooking.On the other hand, on the part of the corresponding upper absorbent layer 41 on the lower absorbent layer 42, do not implement embossing as described above processing, therefore, when the lower absorbent layer 42 of laminated portions 40 is pushed by upper absorbent layer 41, then reduce thickness easily and increase density.The density of extruding recess 41a is 0.2～0.7g/cm from improving liquid imbedibility this point
3More suitable, be 0.4～0.6g/cm
3Then better.
The mass area ratio of the Time of Fluff Slurry of the upper absorbent layer 41 of laminated portions 40 is 100～500g/m
2, 200～400g/m preferably
2, that under low pressure the thickness of upper absorbent layer 41 is suitable is 1～5mm, preferably 2～4mm.
The mass area ratio of the lower absorbent layer 42 of laminated portions 40 is 50～400g/m
2, 200～300g/m preferably
2, that the thickness of the lower absorbent layer 42 under the low pressure is suitable is 0.5～4mm, preferably 1～3mm.
As mentioned above, in this sanitary towel 1, owing to be formed with extruding recess 41a on the face of lower absorbent layer 42 1 sides of the upper absorbent layer 41 of laminated portions 40, thus the face of lower absorbent layer 42 1 sides of upper absorbent layer 41 with planar contact area (also deserving to be called the contact area of portion's absorbed layer 41) than the face of upper absorbent layer 41 one sides of lower absorbent layer 42 little with planar contact area (contact area that also claims lower absorbent layer 42).So-called and planar contact area is meant that upper absorbent layer and lower absorbent layer push the area of part of the other side's face (being assumed to the plane) in both boundary portion.
Because the contact area of upper absorbent layer 41 is littler than the contact area of lower absorbent layer 42, so wearing under the state, upper absorbent layer 41 can be with the local powerful compression lower absorbent layer 42 of small size.This be because: dummy is added in the load on the upper absorbent layer and is passed to the load of lower absorbent layer roughly the same, because the contact area of top absorber is reduced in edge surface, so reduce corresponding increase (and then, can think that the load of transmitting to lower absorbent layer is because of the corresponding increase of upper absorbent layer) because of contact area in the contact portion load of reality.Thus, it is big that the density of the contact portion of lower absorbent layer becomes, thus the effect of the increase of the density of bringing with embossing not interosculate, further improve the imbedibility of liquid.
Method (also claiming contact area minimizing method) as the contact area that reduces upper absorbent layer 41, except embossing processing, can use through hole processing, bonding agent impregnating, but embossing is processed as contact area minimizing method, can not reduce absorptive capacity, and the whole density of raising, and in absorber density along with raising gradually near embossing part, and can form the high structure of rigidity (rod structure), thus the imbedibility of liquid improves, during Liquid Absorption Time of Fluff Slurry can not sink, with the stickiness this point of health on good especially.
The contact condition in tiny area of top absorbent portion and bottom absorbent portion is considered to: the part of lower absorbent layer is at the extruding recess place of top absorbent portion, surpass border (imagination) face, form ratio low density on every side, thereby the part gently contacts, but move to the liquid of bottom absorber from the top absorber and to carry out outside the extruding recess that is considered to be in the top absorber, therefore think aspect absorbability not special influence.
Upper absorbent layer 41 and lower absorbent layer 42 adopt the following stated method to measure respectively with planar contact area.
The assay method of the contact area of＜upper absorbent layer 41 〉
The contact area of upper absorbent layer is measured with following method.Sample is cut out the size of 60mm * 100mm, the face of lower absorbent layer one side of sample is made the impression platform [unistamp (trade name) that the impression face is placed on SANLING pencil (strain) corporate system, red, size 65mm * the 105mm of impression portion] on, at acrylic panel (80mm * 120mm) and under the state of briquetting (heavy り) pressurization left standstill 30 seconds by thickness 5mm.At this moment, the total weight of acrylic panel and briquetting is adjusted to 1.2kg and (is equivalent to 20g/cm
2).Remove after impression platform and the briquetting, read in the image of the face (being stamped the painted face of platform) of lower absorbent layer one side of sample.In the reading in of image, use the central part of sample, and use 2 [daylight lamp SL-230K2; The LPL corporate system] as light source, with CCD camera (HV-37; Electronics corporation of Hitachi system) is connected by the F support with camera lens (Nikon system Ai AFNikol 24mmF2.8D), uses the NewQube (Ver.4.22) of Nexus system to carry out reading in and handling of image.The processing of portrait is to obtain the area conduct " contact area rate " that is stamped the painted embossing of platform part in addition by " binaryzation ".(in fact, " manually binaryzation " carried out forms such as " filling and leading up eyelet ", " removal particle " and handled afterwards, and coloured part is rationalized, and by " shape of particle instrumentation ", obtains area occupation ratio=" contact area rate ".Area occupation ratio is to try to achieve with " pixel count of coloured part "/" both full-pixel 640 * 480 on the picture " * 100.)
The assay method of the contact area of＜lower absorbent layer 42 〉
About lower absorbent layer, except make non-skin contact surface one side towards last, and with the face of upper absorbent layer one side of sample as outside the impression side, measure in the same manner with the assay method of the contact area of above-mentioned upper absorbent layer 41.
What the contact area rate of upper absorbent layer was suitable is 60～100%, is more preferably 70～95%, and best is 80～90%.The contact area rate of lower absorbent layer is roughly 100%.
This sanitary towel 1 forms the shape of length direction and width, and shown in Fig. 2 (a) and Fig. 2 (b), lower absorbent layer 42 is extended to foreign side from laminated portions 40 on the length direction of sanitary towel 1 and width respectively.One side of upper absorbent layer 41 and lower absorbent layer 42 is extended to width at least, thus can be at the width central part of sanitary towel 1, form laminated portions 40 to the side-prominent protrusion of skin contact surface one, can improve stickiness for wearer's excretory portion etc.As mentioned above, this sanitary towel 1 forms protrusion at the position of corresponding excretory portion,, but also can be or not the position corresponding with excretory portion, and form protrusion at the position of corresponding anal cleft etc., perhaps all form protrusion at two positions.
As Fig. 2 (a), Fig. 2 (b) and shown in Figure 3, the lower absorbent layer 42 of this sanitary towel 1 from laminated portions 40 on the extended part 44 of foreign side, also be processed to form the extruding recess 44a same with the extruding recess 41a of above-mentioned upper absorbent layer 41 by same embossing.Owing to from prolonging of laminated portions 40 also to have formed extruding recess 44a on the part 44 by embossing processing, the diffusibility of the liquid on the direction parallel with the face of lower absorbent layer 42 is improved, the inhalation power from the liquid on surface is further improved.Thus, can further improve the dry feeling of skin contact surface.And, except the method for the above-mentioned contact area that reduces upper absorbent layer 41 with embossing processing, adopt other method to reduce and also can obtain same effect with planar contact area from the extended laterally part 44 of laminated portions 40.
Wearing under the state,, be difficult to dislocation so upper absorbent layer and lower absorbent layer become because upper absorbent layer enters in the lower absorbent layer, particularly as the mode of Fig. 1, effective under the little situation of upper absorbent layer.And, as the mode of Fig. 1 and since with the contact surface of lower absorbent layer on have concavo-convexly, be difficult to dislocation more so become.
The present invention is not limited in above-mentioned embodiment, and multiple variation can be arranged in the scope that does not exceed aim of the present invention.
For example, can not adopt as sanitary towel 1, to make lower absorbent layer 42, and can shown in Fig. 4 (b), upper absorbent layer 41 be extended from laminated portions 40 extended methods.In this case, also can be at the good protrusions of formation stickiness such as position of corresponding excretory portion.And shown in Fig. 4 (d) or figure (e), absorber of the present invention also can only be made of laminated portions 40.And, can not adopt as sanitary towel 1 on the face of lower absorbent layer 42 1 sides of upper absorbent layer 41 and form extruding recess 41a, and can be shown in Fig. 4 (e), on the face of skin contact surface one side of upper absorbent layer, form same extruding recess 41b.And, can not adopt the lower absorbent layer 42 of the absorber 4 in the sanitary towel 1, and can be shown in Fig. 4 (a), use in the laminated portions 40 thickness and from the lower absorbent layer 42 of the thickness homogeneous of these laminated portions 40 extended parts.And, about each absorber shown in Fig. 4 (a)～Fig. 4 (e), for the same structure division of absorber of above-mentioned sanitary towel 1, marked with sanitary towel 1 in the identical symbol of symbol that uses.
And the plan view shape of extruding recess 41a, 41b, 44a can be arbitrary shapes such as the ellipse beyond circular, avette, triangle, rectangle, square, star, heart.And, can not adopt discontinuous extruding recess and can be with the extruding recess of the continuous shape of parallel wire or clathrate etc.And, except these extruding recesses, be to improve anti-leakage, can also and form squeezing groove on every side along the both sides of the laminated portions of sanitary towel.If form squeezing groove, then can in the imbedibility of the liquid of keeping the extruding recess, give high leakageresistance.
And, face sheet is extended and the covering back-sheet.And, also can form from both sides extended flap, be fastened at the crotch part of underwear, or adopt the mode of launching use in the buttocks side of underwear.Also can implement embossing processing on the lower absorbent layer.
Absorbent commodity of the present invention except sanitary napkin, also can be knickers back boxing, incontinence pad, disposable diaper etc.The present invention is specially adapted to be fixed on the article that use on the wearing articles such as medicated underpants.
Claims (5)
1. absorbent commodity has skin contact surface, non-skin contact surface and is sandwiched in absorber between these two faces, it is characterized in that,
Above-mentioned absorber has the laminated portions that upper absorbent layer and lower absorbent layer are laminated, and upper absorbent layer is positioned at above-mentioned skin contact surface one side, and lower absorbent layer is positioned at above-mentioned non-skin contact surface one side,
The above-mentioned laminated portions of above-mentioned absorber is formed: at 0.5g/cm
2Under the load, the apparent density of lower absorbent layer is lower than the apparent density of upper absorbent layer; At 20g/cm
2Under the load, the apparent density of lower absorbent layer is identical with the apparent density of upper absorbent layer or than the apparent density height of upper absorbent layer.
2. absorbent commodity as claimed in claim 1 is characterized in that,
In the above-mentioned laminated portions, the face and the planar contact area of lower absorbent layer one side of upper absorbent layer are littler than the face and the planar contact area of upper absorbent layer one side of lower absorbent layer.
3. absorbent commodity as claimed in claim 2 is characterized in that,
The face of lower absorbent layer one side of the upper absorbent layer in the above-mentioned laminated portions by embossing processing, reduces and planar contact area.
4. as any 1 described absorbent commodity in the claim 1～3, it is characterized in that,
Above-mentioned absorbent commodity has length direction and width, and upper absorbent layer or lower absorbent layer are extended laterally from above-mentioned laminated portions on the width at least of this absorbent commodity.
5. absorbent commodity as claimed in claim 4 is characterized in that,
Upper absorbent layer or lower absorbent layer, from the face of above-mentioned non-skin contact surface one side of the extended part of above-mentioned laminated portions, implemented to make the processing that reduces with planar contact area.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004228683A JP4014585B2 (en) | 2004-08-04 | 2004-08-04 | Absorbent articles |
| JP228683/2004 | 2004-08-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1732874A true CN1732874A (en) | 2006-02-15 |
| CN100544693C CN100544693C (en) | 2009-09-30 |
Family
ID=36022361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100885788A Expired - Fee Related CN100544693C (en) | 2004-08-04 | 2005-08-04 | Absorbent commodity |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4014585B2 (en) |
| KR (1) | KR101159860B1 (en) |
| CN (1) | CN100544693C (en) |
| TW (1) | TWI352588B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110179594A (en) * | 2019-05-31 | 2019-08-30 | 重庆百亚卫生用品股份有限公司 | A kind of absorption-type core |
| CN112135593A (en) * | 2018-12-13 | 2020-12-25 | 花王株式会社 | Absorbent article |
| CN112566596A (en) * | 2018-08-14 | 2021-03-26 | 尤妮佳股份有限公司 | Disposable diaper having a disposable diaper |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4785693B2 (en) * | 2006-09-27 | 2011-10-05 | 花王株式会社 | Absorbent articles |
| JP4781213B2 (en) * | 2006-09-27 | 2011-09-28 | 花王株式会社 | Absorbent articles |
| JP4979424B2 (en) * | 2007-03-20 | 2012-07-18 | 花王株式会社 | Absorbent articles |
| JP4979423B2 (en) * | 2007-03-20 | 2012-07-18 | 花王株式会社 | Absorbent articles |
| JP6012272B2 (en) * | 2012-06-11 | 2016-10-25 | 花王株式会社 | Absorbent articles |
| JP6192794B1 (en) * | 2016-11-08 | 2017-09-06 | ユニ・チャーム株式会社 | Absorbent articles |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54105893A (en) * | 1978-02-07 | 1979-08-20 | Uni Charm Corp | Humor absorbing and treating sheet |
| JPH0425722U (en) * | 1990-06-22 | 1992-02-28 | ||
| JP2566364Y2 (en) * | 1991-12-25 | 1998-03-25 | 花王株式会社 | Absorbent articles |
| JP3805274B2 (en) * | 2002-04-09 | 2006-08-02 | 花王株式会社 | Disposable diapers |
-
2004
- 2004-08-04 JP JP2004228683A patent/JP4014585B2/en not_active Expired - Fee Related
-
2005
- 2005-07-15 TW TW094124181A patent/TWI352588B/en not_active IP Right Cessation
- 2005-08-04 CN CNB2005100885788A patent/CN100544693C/en not_active Expired - Fee Related
- 2005-08-04 KR KR1020050071488A patent/KR101159860B1/en active IP Right Grant
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112566596A (en) * | 2018-08-14 | 2021-03-26 | 尤妮佳股份有限公司 | Disposable diaper having a disposable diaper |
| CN112566596B (en) * | 2018-08-14 | 2022-07-08 | 尤妮佳股份有限公司 | Disposable diaper having a disposable diaper |
| TWI798477B (en) * | 2018-08-14 | 2023-04-11 | 日商優你 嬌美股份有限公司 | Disposable Diapers |
| CN112135593A (en) * | 2018-12-13 | 2020-12-25 | 花王株式会社 | Absorbent article |
| CN112135593B (en) * | 2018-12-13 | 2022-04-15 | 花王株式会社 | Absorbent article |
| CN110179594A (en) * | 2019-05-31 | 2019-08-30 | 重庆百亚卫生用品股份有限公司 | A kind of absorption-type core |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200616590A (en) | 2006-06-01 |
| JP4014585B2 (en) | 2007-11-28 |
| KR101159860B1 (en) | 2012-06-25 |
| TWI352588B (en) | 2011-11-21 |
| KR20060049299A (en) | 2006-05-18 |
| CN100544693C (en) | 2009-09-30 |
| JP2006043155A (en) | 2006-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1732874A (en) | Absorbent article | |
| CN1164250C (en) | Fluid intake intensifier | |
| CN1144574C (en) | Thin absorbent article having wicking and crush resistant properties | |
| CN1112905C (en) | Thin, curved absorbent article having elasticized edges | |
| TWI232097B (en) | Absorbent article | |
| CN1229091C (en) | Top layer for absorption products | |
| CN1111395C (en) | Liquid-absorbing article | |
| CA2397938C (en) | Absorbent products with improved vertical wicking and rewet capability | |
| WO2012035787A1 (en) | Bodily fluid absorbent article | |
| US20170000665A1 (en) | Assembled intermediate comprising staple fiber nonwoven web and articles | |
| RU2501542C2 (en) | Absorbent product | |
| CN1736354A (en) | Absorbent article | |
| CN1750802A (en) | An absorbent article with an embossment along the perimeter | |
| JPH09503944A (en) | Menstrual absorption structure | |
| AU6534299A (en) | Absorbent article with superabsorbent particles and densified region | |
| WO2011040043A1 (en) | Absorbent article and manufacturing apparatus for absorbent article | |
| EP1748751A2 (en) | Acquisition/distribution layer | |
| JP6108522B2 (en) | Absorber and absorbent article | |
| CN1344143A (en) | Absorbent article having transfer delay layer for improved fluid handling | |
| KR102475638B1 (en) | absorbent article | |
| RU2568863C2 (en) | Absorbent article | |
| JP5552091B2 (en) | Absorbent articles | |
| CN1365655A (en) | Sanitary napkin possessing enhanced flexibility region | |
| NO302096B1 (en) | Combined fluid-absorbing composite structure and its use | |
| KR20130020835A (en) | Absorbent core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 |