WO2012029891A1 - Incontinence Liner - Google Patents
Incontinence Liner Download PDFInfo
- Publication number
- WO2012029891A1 WO2012029891A1 PCT/JP2011/069860 JP2011069860W WO2012029891A1 WO 2012029891 A1 WO2012029891 A1 WO 2012029891A1 JP 2011069860 W JP2011069860 W JP 2011069860W WO 2012029891 A1 WO2012029891 A1 WO 2012029891A1
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- WIPO (PCT)
- Prior art keywords
- parts
- diffusing
- region
- diffusion
- liner
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
-
- 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
-
- 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
-
- 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
-
- 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
- A61F13/53—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
-
- 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
- A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use
- A61F2013/15121—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use for mild incontinence
-
- 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
- A61F2013/530868—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 characterized by the liquid distribution or transport means other than wicking layer
- A61F2013/530927—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 characterized by the liquid distribution or transport means other than wicking layer having longitudinal barriers
- A61F2013/530934—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 characterized by the liquid distribution or transport means other than wicking layer having longitudinal barriers having a density gradient
- A61F2013/530948—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 characterized by the liquid distribution or transport means other than wicking layer having longitudinal barriers having a density gradient along the length
Definitions
- the present invention (disclosure) relates to an incontinence liner.
- an absorptive product provided with a liquid permeable skin contact side sheet, a liquid impermeable non-skin contact side sheet, and an
- the absorptive body which is arranged between these skin contact side sheet and non-skin contact side sheet and which includes an absorptive material (see PLT 1) .
- the absorptive body is provided with a center thick part and a thin part surrounding the thick part.
- the liquid to be absorbed is absorbed from the thick part in the absorptive body, then diffuses from the thick part in the thin part. By doing this, the liquid to be absorbed can be quickly taken into the absorptive body and therefore the possibility of the liquid to be absorbed leaking without being absorbed in the absorptive body can be reduced.
- PLT 1 Japanese Patent Publication (A) No. 2008- 237382 Summary of Invention
- the liquid to be absorbed might leak from the peripheral edge of the absorptive body. That is, it might be necessary to restrain the speed of diffusion of the liquid to be absorbed in the absorptive body.
- Urine has a viscosity lower than that of menstrual blood, so when the
- absorptive product is an incontinence liner and the liquid to be absorbed is mainly urine, the likelihood of leakage is higher than when the absorptive product is a sanitary napkin and the liquid to be absorbed is mainly menstrual blood.
- an incontinence liner provided with a liquid permeable skin contact side sheet, a liquid impermeable non-skin contact side sheet, and an absorptive body arranged between the skin contact side sheet and the non- skin contact side sheet and including an absorptive material, the absorptive material including 30 to 70 mass% of a high absorption polymer, in which liner, wherein the absorptive body includes an absorbing part positioned at a urinating position of a wearer when worn, a diffusing part extending around the absorbing part up to the peripheral edge of the absorptive body, and diffusion-suppressing parts scattered in the diffusing part, wherein an average absorptive material density of the diffusing part is higher than an average absorptive material density of the absorbing part, and an average absorptive material density of the diffusion-suppressing parts is lower than the average absorptive material density of the diffusing part, wherein the absorbing part projects toward the skin contact side sheet more
- FIG. 1 is a plan view of an incontinence liner in accordance with the present invention.
- FIG. 2 is a longitudinal cross-sectional view taken along line M-M of FIG. 1.
- FIG. 3 is a back view of the incontinence liner in accordance with the present invention.
- FIG. 4 is a plan view of an absorptive body of the incontinence liner in accordance with the present
- FIG. 5 is a schematic view explaining the flow of the liquid to be absorbed in the absorptive body.
- FIG. 6 is a partial schematic longitudinal cross- sectional view of diffusion-suppressing parts and a diffusing part in the absorptive body.
- FIG. 7 is a partial schematic longitudinal cross- sectional view of a compression groove in the absorptive body.
- the incontinence liner 1 is provided with an oval-shaped main body 2 and a pair of wings 3 which project outwardly from the side parts of the main body 2 in the width direction.
- the present invention is not to be limited to this shape of main body or to the presence of wings.
- the main body 2 is comprised of a skin contact side sheet (skin
- the wings 3 are comprised of parts 5a of the non-skin contact side sheet 5 extending outwardly beyond the side edges of the skin contact side sheet 4 in the width direction and side sheets 8 superposed on the parts 5a.
- the skin contact side sheet 4 and non-skin contact side sheet 5, and the non-skin contact side sheet parts 5a and side sheets 8 are respectively joined by, for example, a hot melt adhesive, heat sealing, etc.
- the side sheets 8 are also superposed and joined with the skin contact side sheet 4, and therefore, the main body 2 also includes the side sheets 8.
- the non-skin contact side sheet 5 may also not extend up to the wings 3.
- the wings 3 may be comprised of only the side sheets 8, or the side sheets 8 and other sheets superposed with the same.
- adhesives 9 e.g., adhesive stripes, separated from each other in the width direction and extending in parallel in the longitudinal direction are applied, while at the outer surface of the non-skin contact side sheet 5 corresponding to the back surfaces of the wings 3, adhesives 10 are applied.
- the present invention is not to be limited to the use of adhesives, nor to the
- the liner 1 is formed with a pair of compression grooves 11 extending from the skin contact side sheet 4 to the absorptive body 6.
- compression grooves 11 is comprised of deep groove sections and shallow groove sections, which alternately repeat in the length (longitudinal) direction. In some embodiments, the compression grooves 11 may also be comprised of deep grooves which continue in the length direction .
- the liner 1 is formed symmetrically about a longitudinal direction center line L-L and a width direction center line M-M. In some embodiments, the liner
- the skin contact side sheet 4 has liquid
- permeability and is, for example, comprised of a woven fabric or nonwoven fabric made of polyethylene (PE) , polypropylene (PP), polyethylene terephthalate, or other polyolefin-based thermoplastic hydrophobic fiber treated to make it hydrophilic, or is comprised of pulp, cotton, or other natural fiber or rayon or another cellulose fiber.
- PE polyethylene
- PP polypropylene
- PP polyethylene terephthalate
- other polyolefin-based thermoplastic hydrophobic fiber treated to make it hydrophilic or is comprised of pulp, cotton, or other natural fiber or rayon or another cellulose fiber.
- a 20 to 40 g/m 2 air-through nonwoven fabric comprised of PE/PP fiber is used as the skin contact side sheet 4.
- the non-skin contact side sheet 5 has liquid
- impermeability and moisture permeability and is, for example, comprised of a hydrophobic nonwoven fabric, a water impermeable plastic film, a laminate sheet of a nonwoven fabric and water impermeable plastic film, a high waterproof melt blown nonwoven fabric, or an SMS (spun bonded/melt blown/spun bonded) nonwoven fabric having high strength spun bond nonwoven fabric
- the non-skin contact side sheet 5 a 20 to 35 g/m 2 or so moisture permeable PE film is used.
- the non-skin contact side sheet 5 may also be comprised of a material having moisture impermeability.
- the absorptive body 6 has liquid retention ability and is comprised of an absorptive material.
- absorptive material for example, includes a fluff-like pulp or air laid nonwoven fabric and a granular high absorption polymer (or super absorption polymer, SAP) .
- the flap-shaped pulp is, for example, comprised of chemical pulp, cellulose fiber, rayon, acetate, or other artificial cellulose fiber
- the air laid nonwoven fabric is, for example, comprised of pulp and synthetic fiber melt bonded or fixed by a binder to form a nonwoven fabric
- SAP is, for example, comprised of a starch-based, acrylic acid-based, or amino acid-based granular or fibrous polymer.
- the absorptive body 6 is formed by an absorptive material comprised of pulp and
- the mass ratio of the mass of the SAP to the mass of the absorptive material that is, the total mass of the pulp and the SAP.
- the SAP mass ratio is set to 30 to 70 mass percent and, preferably, 35 to 55 mass percent. If the SAP mass ratio is smaller than 30 mass percent, it becomes difficult to secure an absorptive material density sufficient for imparting liquid diffusibility. If the SAP mass ratio is larger than 70 mass percent, the pulp or another fiber ingredient becomes relatively insufficient, a gel blocking phenomenon of the high absorption polymer easily occurs, and therefore the liquid diffusibility is likely to fall or, when worn, the absorptive body is likely to lose its shape due to the external force acting on the absorptive body. Note that the SAP mass ratio of a sanitary napkin is generally 0 to 10 mass percent, at most 20 mass percent, so the SAP mass ratio of a sanitary napkin.
- incontinence liner according to the present invention differs in constitution from a sanitary napkin in this respect .
- the cushion sheet 7 is, for example, comprised of a nonwoven fabric made of a polyolefin-based thermoplastic hydrophobic fiber treated to be made hydrophilic.
- a nonwoven fabric made of a polyolefin-based thermoplastic hydrophobic fiber treated to be made hydrophilic.
- an air-through nonwoven fabric, spun bonded nonwoven fabric, SMS nonwoven fabric, etc. may be used.
- a 20 to 40 g/m 2 air- through nonwoven fabric comprised of PE/PP fiber is used as the cushion sheet 7.
- the side sheets 8 are, for example, comprised of a nonwoven fabric of a polyolefin-based thermoplastic hydrophobic fiber.
- a nonwoven fabric an air-through nonwoven fabric, spun bonded nonwoven fabric, SMS
- nonwoven fabric etc. may be used.
- side sheets 8 a 15 to 35 g/m 2 air-through nonwoven fabric comprised of PE/PP fibers is used.
- the adhesives 9 and 10 are, for example, comprised of a styrene-isoprene-styrene block copolymer (SIS) , styrene-butadiene-styrene block copolymer (SBS) , styrene- ethylene-butylene-ethylene copolymer (SEBS) , or another hot melt adhesive.
- SIS styrene-isoprene-styrene block copolymer
- SBS styrene-butadiene-styrene block copolymer
- SEBS styrene- ethylene-butylene-ethylene copolymer
- the absorptive body 6, as shown in FIG. 4, includes regions defined with respect to each other by defining (dividing) lines DF and DR extending in the width
- the front region 6F is defined between a front edge 6EF of the absorptive body 6 and front defining line DF
- the intermediate region 61 is defined between the front defining line DF and the rear defining line DR
- the rear region 6R is defined between the rear defining line DR and a rear edge 6ER of the absorptive body 6.
- the center part of the intermediate region 61 in the longitudinal direction and width direction is provided with an oval-shaped absorbing part 6A extending along the longitudinal direction, while the intermediate region 61 around the absorbing part 6A is provided with a high diffusing part 6DHI. It is noted that the absorbing part may have an alternative, non-oval, shape.
- the high diffusing part 6DHI may extend to the opposing side edges of the absorptive body 6 in the intermediate region 61.
- the absorbing part 6A and the high diffusing part 6DHI together cover the entirety of the intermediate region 61.
- the center parts of the front region 6F and the rear region 6R in the width direction are respectively
- the two sides of the high diffusing parts 6DHF and 6DHR that is, peripheral parts of the front region 6F and the rear region 6R in the width direction, are respectively provided with low diffusing parts 6DLF and 6DLR.
- the high diffusing parts 6DHI, 6DHF, and 6DHR and the low diffusing parts 6DLF and 6DLR extend toward and preferably reach the entire peripheral edge 6P of the absorptive body 6.
- the high diffusing parts 6DHI 6DHF and 6DHR together surround the absorbing part 6A, with the high diffusing part 6DHI covering the entirety of the intermediate region 61 around the absorbing part 6A and extending to both edges of the absorptive body 6 in the intermediate region 61, while the high diffusing part 6DHF projects from the high diffusing part 6DHI in a longitudinal direction along the centre of the front region 6F to the front edge 6EF of the absorptive body 6, such that it has a generally rectangular shape wherein its length in the longitudinal direction is greater than its width in the width direction, and the high diffusing part 6DHR
- both the front and rear high diffusing parts 6DHF and 6DHR may be flanked on both sides by the low diffusing parts 6DLF and 6DLR respectively.
- the invention is not to be limited to any particular shape of any of the diffusing parts, for example the high
- diffusing parts 6DHF and 6DHR need not be generally rectangular and may have another regular or irregular shape .
- the front region 6F and the rear region 6R are provided with scattered diffusion-suppressing parts 6S. That is, in the high diffusing parts 6DHF and 6DHR and in the low diffusing parts 6DLF and 6DLR, the diffusion-suppressing parts 6S are provided.
- the diffusion-suppressing parts 6S are not provided at the intermediate region 61. However, the diffusion-suppressing parts 6S may also be provided at the intermediate region 61 in other embodiments.
- the diff sion-suppressing parts 6S may also be provided only at the front region 6F or only at the rear region 6R.
- the diffusion- suppressing parts 6S when present are preferably present in both the high and low diffusion regions 6DHF and 6DLF, but may be present in only one of said regions. In a preferred embodiment, at least some of the diffusion- suppressing parts 6S overlap both the high and low diffusion regions 6DHF and 6DLF.
- the diffusion- suppressing parts 6S when present in the front region 6F preferably cover up to about 70% of the area of said front region 6F, for example up to 60%, or up to 50%, of the area of said front region 6F.
- the diffusion- suppressing parts 6S when present in the front region 6F preferably cover at least 10% of the area of said front region 6F, for example at least 20%, or at least 30%, of the area of said front region 6F.
- diffusion region 6DHF is discontinuous and divided into at least two parts by at least one of the diffusion- suppressing parts 6S, which avoids the possibility of quick diffusion of the liquid to be absorbed through any continuous paths in the high diffusion region 6DHF.
- any possible quick leakage paths through the high diffusion region 6DHF is blocked by at least one of the diffusion-suppressing parts 6S.
- one of the diffusion-suppressing parts 6S (hereinafter referring as the blocking diffusion-suppressing part) , which is at a center part of the front region 6F, can be seen from
- the blocking diffusion-suppressing part divides the high diffusion region 6DHF into two separate parts. As shown in Fig.4, even if the liquid quickly diffuses through the area between two diffusion-suppressing parts 6S which are close to the line DF, the diffusion rate of the liquid finally is slow down by the blocking
- the high diffusion region 6DHF divided by at least one of the diffusion-suppressing parts 6S is not an essential feature to solve the technical problem which the
- invention aims to solve, and the feature only make a better effect on preventing the liquid leakage than that of a continuous high diffusion region 6DHF.
- the diffusion-suppressing parts 6S when present are preferably present in both the high and low diffusion regions 6DHR and 6DLR, but may be present in only one of said regions. In a preferred embodiment, at least some of the diffusion-suppressing parts 6S overlap both the high and low diffusion regions 6DHR and 6DLR.
- the diffusion-suppressing parts 6S when present in the rear region 6R preferably cover up to about 70% of the area of said rear region 6R, for example up to 60%, or up to 50%, of the area of said rear region 6R.
- the diffusion-suppressing parts 6S when present in the rear region 6R preferably cover at least 10% of the area of said rear region 6R, for example at least 20%, or at least 30%, of the area of said rear region 6R.
- the high diffusion region 6DHR is discontinuous and divided into at least two parts by at least one of the diffusion-suppressing parts 6S, which avoids the possibility of quick diffusion of the liquid to be absorbed through any continuous paths in the high diffusion region 6DHR. In other words, any possible quick leakage paths through the high diffusion region 6DHR is blocked by at least one of the diffusion- suppressing parts 6S.
- one of the blocking diffusion-suppressing parts 6S which is at a center part of the rear region 6R, can be seen form Fig.4.
- the blocking diffusion-suppressing part 6s divides the high diffusion region 6DHR into two separate parts. As shown in Fig.4, even if the liquid quickly diffuses through the area between two diffusion-suppressing parts 6S which are close to the line DR, the diffusion rate of the liquid finally is slow down by the blocking diffusion- suppressing part 6S.
- the high diffusion region 6DHR divided by at least one of the diffusion-suppressing parts 6S is not an essential feature to solve the
- diffusion-suppressing parts 6S may cover for example 10- 70%, 10-60%, 10-50%, 20-70%, 20-60%, 20-50%, 30-70%, 30- 60%, or 30-50%, of the area of said region.
- the diffusion-suppressing parts can have several different sizes or have a uniform sizes. For example, in FIG. , the sizes of the diffusion-suppressing parts 6S increase as the parts 6S are away from the intermediate region 61.
- the absorptive body 6 can be said to include the absorbing part 6A, the diffusing part 6D extending around the absorbing part 6A up to the peripheral edge of the absorptive body 6, and the diffusion-suppressing parts 6S scattered in the diffusing part 6D. Further, the diffusing part 6D is comprised of the high diffusing parts 6DHI, 6DHF, and 6DHR and low diffusing parts 6DLF and 6DLR, the absorptive body 6 can be said to include the absorbing part 6A, the diffusing part 6D extending around the absorbing part 6A up to the peripheral edge of the absorptive body 6, and the diffusion-suppressing parts 6S scattered in the diffusing part 6D. Further, the diffusing part 6D is comprised of the high diffusing parts 6DHI, 6DHF, and 6DHR and low diffusing parts 6DLF and 6DLR, the absorptive body 6 can be said to include the absorbing part 6A, the diffusing part 6D extending around the absorbing
- the absorbing part 6A is provided inside the intermediate region 61
- the diffusing parts 6D are provided in the intermediate region 61 around the absorbing part 6A and at the front region 6F and the rear region 6R
- the diffusion-suppressing parts 6S are not provided at the intermediate region 61, but are provided scattered in the diffusing part 6D at least at one of the front region 6F and the rear region 6R.
- the absorptive body 6 is formed symmetrically about the longitudinal direction center line L-L and the width direction center line M-M. In some embodiments, the absorptive body 6 is formed symmetrically only about the longitudinal direction center line L-L.
- the low diffusing parts 6DLF and 6DLR, and the diffusion-suppressing parts 6S differ in average absorptive material density. That is, if the average absorptive material density of a part x of the absorptive body 6 is expressed as the D(x), then
- D(6D)>D(6A) is established. Further, D(6S) ⁇ D(6D) is established. In particular, in an embodiment according to the present invention, D(6S) ⁇ D(6A) is established.
- D(6S) ⁇ D(6A) ⁇ D(6DLF, 6DLR) ⁇ D ( 6DHI , 6DHF, 6DHR) is established.
- D(6A) 0.1 to 0.18 g/cm 3
- D(6DHI, 6DHF, 6DHR) 0.2 to 0.3 g/cm 3
- D ( 6DLF, 6DLR) 0.15 to 0.25 g/cm 3
- D(6A) 0.15 g/cm 3
- D(6DHI, 6DHF, 6DHR) 0.26 g/cm 3
- D ( 6DLF, 6DLR) 0.18 g/cm 3
- D(6S) 0.03 g/cm 3 .
- the main body 2 When worn, the main body 2 is fixed by the adhesives 9 to the inner surface of clothing such as underwear of the wearer, while the wings 3 are fixed to the outer surface of the clothing by the adhesives 10. That is, the main body 2 and wings 3 sandwich the clothing between them whereby the liner 1 is fastened to the inner side of the clothing.
- the clothing to which the liner 1 is fastened generally is panty-shaped with an elastic torso part and elastic leg parts. By fitting over the torso and legs of the wearer, the clothing as a whole fits against the skin of the wearer. As a result, the liner 1 fastened to the inner side of the clothing also is worn in a state fit along the skin of the wearer extending in the front-back direction centered at the crotch part.
- the liner 1 is fastened at the crotch part of the clothing at the substantial center in the front-back direction.
- the urinating position UP of the wearer (FIG. 4) becomes positioned at the absorbing part 6A of the absorptive body 6, in particular at a position near the front region 6F in the absorbing part 6A. Therefore, the liquid to be absorbed mainly comprised of urine is mainly absorbed at the absorbing part 6A.
- the absorbing part 6A has a low absorptive material density, so the liquid to be absorbed slowly diffuses inside the absorbing part 6A.
- the diffusing part 6D high diffusing parts and low diffusing parts
- the diffusing part 6D is high in absorptive material density
- the liquid to be absorbed is drawn into the diffusing part 6D by the capillary phenomenon and quickly diffuses inside the diffusing part 6D.
- the liquid to be absorbed proceeds inside the diffusing part 6D while bypassing the diffusion- suppressing parts 6S, as shown in FIG. 5 by the arrow U. Alternatively, it slowly diffuses inside the diffusion- suppressing parts 6S. As a result, the diffusion speed of the liquid to be absorbed falls. Therefore, the liquid to be absorbed can be kept from leaking from the peripheral edge of the absorptive body 6.
- the liquid to be absorbed flows from the high diffusing parts 6DHI, 6DHF, and 6DHR to the low diffusing parts 6DLF and 6DLR.
- diffusing parts 6DLF and 6DLR are lower in average absorptive material density.
- the absorptive material is comprised of pulp and SAP, so the basis weight of the absorptive material becomes the total of the basis weights of the pulp and SAP.
- the average thickness of the part x is obtained based on the measurements of the thickness of the part x other than the compression grooves 11.
- the average absorptive material density of the absorptive body 6 is for example set as follows. That is, if expressing the average pulp basis weight and average SAP basis weight of a part x of the absorptive body 6 by BP(x) and BS (x) , the absorptive body 6 is formed so that
- BS (6A) >BS (6D) >BS (6S) is established. Therefore, if expressing the average absorptive material basis weight of a part x by B(x), the absorptive body 6 is formed so that B (6A) >B (6D) >B (6S) is established.
- the average pulp basis weights and average SAP basis weights of the high diffusing parts 6DHI, 6DHF, and 6DHR are set to be substantially equal.
- the average absorptive material basis weights thereof are also set to be substantially equal .
- the absorptive body 6 is formed so that
- T ( 6A) >T ( 6DLF, 6DLR) > ( 6DHI, 6DHF, 6DHR) is established.
- the thicknesses of the high diffusing parts DHI, 6DHF, and 6DHR and the thicknesses of the low diffusing parts 6DLF and 6DLR are made substantially equal.
- the thicknesses were measured using a thickness measuring device (Ozaki Manufacturing Co., Ltd., Dial Thickness Gauge Model H-0.4N, initial pressure of measurement force in specifications of "0.4N or less”) . In this case, circular measurement pieces of 10mm in diameter were used.
- the absorptive body 6 is, for example, formed by stacking pulp and SAP over a mesh pattern having air permeability.
- This mesh pattern is formed with a recessed part at a position corresponding to the absorbing part 6A and is formed with projecting parts at positions
- press rollers having projections corresponding to the absorbing part 6A, low diffusing parts 6DLF and 6DLR, high diffusing parts 6DHI, 6DHF, and 6DHR, and diffusion-suppressing parts 6S are used to press the absorptive body 6.
- the projections corresponding to the high diffusing parts 6DHI, 6DHF, and 6DHR are made high in height, while the projections corresponding to the diffusion-suppressing parts 6S are made low in height.
- the high diffusing parts 6DHI, 6DHF, and 6DHR become smaller in thickness and the diffusion-suppressing parts 6S become greater in height (thickness) .
- the absorbing part 6A projects toward the skin contact side sheet 4, that is, toward the wearer, more than the other parts of the absorptive body 6.
- the absorbing part 6A reliably abuts against the urinating position UP of the wearer (FIG. 4), and the liquid to be absorbed is
- the diffusion- suppressing parts 6S project toward the skin contact side sheet 4, that is, toward the wearer, more than the adjoining high diffusing parts 6DHF and 6DHR and low diffusing parts 6DLF and 6DLR.
- the liquid to be absorbed diffuses inside the diffusion- suppressing parts 6S
- the liquid to be absorbed as shown by the arrow U, mainly diffuses through the bottoms of the diffusion-suppressing parts 6S and does not diffuse much through the tops of the diffusion-suppressing parts 6S.
- the once absorbed liquid to be absorbed can be kept from depositing on the skin of the wearer and therefore the skin of the wearer can be kept in the dry state.
- a protruding part of the body of the wearer tends to strike the front region 6F causing pressure to act thereon, so the front region 6F is preferably provided with diffusion-suppressing parts 6S.
- the rear region 6R is also preferably provided with diffusion- suppressing parts 6S.
- the diffusion- suppressing parts 6S are tapered upwardly in the
- the center parts 6SC of the diffusion-suppressing parts 6S are larger in thickness than the surrounding parts 6SP. Therefore, the center parts 6SC have an average
- the absorptive material density lower than the average absorptive material density of the surrounding parts 6SP.
- the liquid to be absorbed diffuses in the diffusion-suppressing parts 6S, the liquid to be absorbed mainly diffuses inside of the surrounding parts 6SP and does not diffuse much at all inside of the center parts 6SC including the tops.
- clearances 12 are formed between adjacent diffusion-suppressing parts 6S and between the skin contact side sheet 4 and diffusing part 6D (high diffusing part and low diffusing part) .
- a return of the absorbed liquid from the absorptive body 6 to the skin contact side sheet 4 can be further suppressed and the skin of the wearer can be kept in a dry state over a long period of time.
- the intermediate region 61 is provided with the high diffusing part 6DHI which is relatively high density and therefore relatively hard.
- This hard portion can resist body pressure or bending force resulting from movement by the wearer while worn.
- the liner 1 when worn, the liner 1 is kept from wrinkling or twisting near the wings 3, therefore the liner 1 can continue to be reliably fastened to the clothing over a long period of time.
- the frequency of changing the incontinence liner 1 is lower than that of a sanitary napkin, therefore the wearing time of the liner 1 is longer, so reliable fastening of the liner 1 over a long period is required.
- three relatively hard high diffusing parts 6DHI, 6DHF, and 6DHR are arranged along the longitudinal direction, that is, the front-back direction of the wearer.
- wrinkles or twisting can be kept from occurring at the adhesives 9 (FIG. 3) extending along the longitudinal direction, therefore the wearer can easily fasten the liner 1 to the clothing.
- the liner 1 as a whole can be kept from wrinkling or twisting, so diffusion of the liquid to be absorbed at the absorptive body 6 can be realized as targeted.
- the above-mentioned compression grooves 11 extend from the intermediate region 61 at the two sides of the absorbing part 6A up to the front region 6F and the rear region 6R.
- the absorptive body 6 can be bent along the compression grooves 11, and the liner 1 can deform tracking the body of the wearer.
- the compression grooves 11 are relatively high in absorptive material density, so the liquid to be absorbed diffuses inside of the compression grooves 11 as well to reach the front region 6F and the rear region 6R where it is further diffused.
- the front region 6F and the rear region 6R are provided with the diffusion-suppressing parts 6S which are relatively low in density and
- the liner 1 can deform tracking the body of the wearer.
- the diffusion-suppressing parts 6S are provided scattered about, that is, are provided discontinuously, the front region 6F and the rear region 6R do not become excessively soft and undesirable wrinkling and twisting of the front region 6F and the rear region 6R can be kept from occurring.
- the adhesives 9 are positioned at the two sides of the areas around the rear edges 11R of the compression grooves 11 in the width direction and extend beyond the rear edges 11R toward the rear in the
- the liner 1 can be kept from wrinkling or twisting.
- the adhesives 9 do not overlap the areas around the front edges 11F and rear edges 11R of the compression grooves 11, in particular the bottoms 11B. That is, the outer surfaces of the liner 1 or non- skin contact side sheet 5 facing the compression grooves 11, in particular their bottoms 11B, are provided with adhesive-free regions lx. As a result, a deformation of the liner 1 along with compression grooves 11 is not inhibited by the adhesives 9. Therefore, when the liner 1 deforms when worn, the liner 1 can easily track the body of the wearer.
- the parts of the compression grooves 11 at the front region 6F and/or at the rear region 6R are surrounded by the diffusion- suppressing parts 6S, and the diffusion-suppressing parts
- the above-mentioned PLT 1 discloses scattered space layers.
- the space layers may appear to correspond to the diffusion-suppressing parts of the present invention.
- PLT 1 does not consider the absorptive material density at all. It is not known if the absorptive material density of the space layers is lower than the absorptive material density of the layers surrounding them. Further, PLT 1 does not disclose the technical problem of suppressing the diffusion speed of the liquid to be absorbed at all and naturally does not disclose a technical solution to this.
- skin contact side sheet skin contacting sheet
- non-skin contact side sheet non-skin contacting sheet
- the absorbing part in cross- section the absorbing part is thicker than the other parts of the absorptive body such that its upper side is closer to the wearer's body than the other parts when in use; and in the case of the diffusing suppressing part, in cross-section the diffusion-suppressing parts are thicker than the diffusing part such that their upper sides are closer to the wearer's body than the diffusing part when in use.
- the present invention is also defined by way of the following non-limiting features Ea to En, El to E16 and Ul to U14, which are not specific to the detailed
- absorptive material density of said diffusion-suppressing parts (6S) is lower than the average absorptive material density of said absorbing part (6A) .
- said absorbing part (6A) is provided inside said intermediate region (61) ,
- said diffusing part (6D) is provided at the
- intermediate region (61) around said absorbing part (6A) and at said front region (6F) and rear region (6R), and said diffusion-suppressing parts (6S) are not provided at said intermediate region (61) and are
- said diffusing part (6D) includes high diffusing parts (6DHI, 6DHF, 6DHR) and low diffusing parts (6DLF, 6DLR) , said high diffusing parts (6DHI, 6DHF, 6DHR) having an average absorptive material density higher than the average absorptive material density of said low diffusing parts (6DLF,
- the high diffusing parts (6DHI, 6DHF, 6DHR) being provided at said intermediate region (61) around said absorbing part (6A) and at center parts of said front region (6F) and rear region (6R) in the width direction, and
- said low diffusing parts (6DLF, 6DLR) being provided at peripheral parts of said front region (6F) and rear region (6R) in the width direction.
- Ee An incontinence liner in which the thickness of the absorbing part (6A) of the absorptive body 6 is greater than the thicknesses of the low-diffusing parts in the front and rear regions (6DLF, 6DLR) ; the thicknesses of the low-diffusing parts in the front and rear regions (6DLF, 6DLR) are greater than the thicknesses of the high-diffusing parts in the front, rear and intermediate regions (6DHF, 6DHR, 6DHI); the thicknesses of the low- diffusing parts in the front and rear regions (6DLF,
- 6DLR are substantially equal; and the thicknesses of the high-diffusing parts in the front, rear and intermediate regions (6DHF, 6DHR, 6DHI)are substantially equal.
- Ef An incontinence liner in which the high-diffusing parts in the front, rear and intermediate regions (6DHF, 6DHR, 6DHI) are provided arranged along the longitudinal direction, that is, in the front-back direction of the wearer .
- Eg An incontinence liner provided with a pair of wings (3) for fastening said liner to clothing (C) , said wings (3) being provided adjoining said intermediate region (61) .
- Eh An incontinence liner provided with a pair of compression grooves (11) extending from the two sides of said absorbing part (6A) up to said front region (6F) and rear region (6R).
- Ej An incontinence liner in which clearances (12) are formed between said tapered diffusion-suppressing parts (6S) and the skin contacting sheet 4.
- Ek An incontinence liner in which belt-shaped adhesives (9) separated from each other in the width direction and extending in parallel in the longitudinal direction are applied at the outer surface of the non-skin contacting sheet (5) corresponding to the back surface of the main body (2) .
- El An incontinence liner (1) in which the belt-shaped adhesives (9) are positioned at the two sides of the areas around the front edges (11F) of the compression grooves (11) in the width direction and extend over the front edges (11F) to the front in the longitudinal direction; and at the two sides of the areas around the rear edges (11R) of the compression grooves (11) in the width direction and extend over the rear edges (11R) to the rear in the longitudinal direction; such that the areas around the front edges (11F) and the areas around the rear edges (11R) of the compression grooves (11) are surrounded by the adhesives (9) .
- absorptive material density of the absorbing part (6A) is 0.1 to 0.18 g/cm 3 ; the average absorptive material density of the high diffusing parts (6DHI), (6DHF), (6DHR) is 0.2 to 0.3 g/cm 3 ; the average absorptive material density of the low diffusing parts (6DLF), (6DLR) is 0.15 to 0.25 g/cm 3 ; and the average absorptive material density of the diffusion suppressing parts (6S) is 0.01 to 0.09 g/cm 3 .
- An incontinence liner (1) comprising a main body (2) having:
- absorptive body (6) includes:
- an absorbing part (6A) adapted to be positioned at a urinating position (UP) of a wearer (W) when worn;
- the average absorptive material density of the diffusing part (6D) is higher than the average absorptive material density of the absorbing part (6A) ; the average absorptive material density of the diffusion- suppressing parts (6S) is lower than the average
- the diffusion-suppressing parts (6S) project toward the skin contacting sheet (4) more than the diffusing part (6D) .
- E2 An incontinence liner (1) as in El, wherein the average absorptive material density of said diffusion- suppressing parts (6S) is lower than the average
- E3 An incontinence liner (1) as in El or E2, wherein said absorptive body (6) includes a front region (6F), a rear region (6R), and an intermediate region (61) between the front region (6F) and the rear region (6R), said absorbing part (6A) is provided inside said intermediate region (61),
- said diffusing part (6D) is provided at the
- intermediate region (61) around said absorbing part (6A) and at said front region (6F) and rear region (6R), and said diffusion-suppressing parts (6S) are not provided at said intermediate region (61) and are
- said diffusing part (6D) includes high diffusing parts (6DHI, 6DHF, 6DHR) and low diffusing parts (6DLF, 6DLR) , said high diffusing parts (6DHI, 6DHF, 6DHR) having an average absorptive material density higher than the average absorptive material density of said low diffusing parts (6DLF, 6DLR) ,
- said high diffusing parts (6DHI, 6DHF, 6DHR) being provided at said intermediate region (61) around said absorbing part (6A) and at center parts of said front region (6F) and rear region (6R) in the width direction, and
- said low diffusing parts (6DLF, 6DLR) being provided at peripheral parts of said front region (6F) and rear region (6R) in the width direction.
- E5 An incontinence liner as in E4, wherein said high diffusing part in the intermediate region (6DHI) extends to the opposing side edges of the absorptive body 6 the absorbing part 6A and the high diffusing part 6DHI together cover the entirety of the intermediate region 61.
- E6 An incontinence liner as in E4 or E5, wherein the thickness of the absorbing part (6A) of the absorptive body 6 is greater than the thicknesses of the low- diffusing parts in the front and rear regions (6DLF, 6DLR) ; the thicknesses of the low-diffusing parts in the front and rear regions (6DLF, 6DLR) are greater than the thicknesses of the high-diffusing parts in the front, rear and intermediate regions (6DHF, 6DHR, 6DHI) ; the thicknesses of the low-diffusing parts in the front and rear regions (6DLF, 6DLR) are substantially equal; and the thicknesses of the high-diffusing parts in the front, rear and intermediate regions (6DHF, 6DHR, 6DHI)are substantially equal.
- E7 An incontinence liner (1) as in any one of E4 to E6, wherein the high-diffusing parts in the front, rear and intermediate regions (6DHF, 6DHR, 6DHI) are provided arranged along the longitudinal direction, that is, in the front-back direction of the wearer.
- An incontinence liner (1) as in any one of E4 to E7, wherein said liner (1) is provided with a pair of wings (3) for fastening said liner to clothing (C) , said wings (3) being provided adjoining said intermediate region (61).
- E9 An incontinence liner (1) as in any one of E3 to E8, wherein said liner (1) is provided with a pair of
- compression grooves (11) extending from the two sides of said absorbing part (6A) up to said front region (6F) and rear region (6R) .
- E10 An incontinence liner (1) as in any one of El to E9, wherein said diffusion-suppressing parts (6S) are tapered such that centre parts (6SC) of said diffusion- suppressing parts (6S) are larger in thickness than the surrounding parts (6SP) .
- E12 An incontinence liner (1) as in any one of El to Ell, wherein belt-shaped adhesives (9) separated from each other in the width direction and extending in parallel in the longitudinal direction are applied at the outer surface of the non-skin contacting sheet (5) corresponding to the back surface of the main body (2) .
- E14 An incontinence liner (1) as in E13, wherein the adhesives (9) do not overlap the areas around the front edges (11F) and rear edges (11R) of the compression grooves (11), in particular the bottoms (11B) , such that the outer surfaces of the liner (1) or non-skin
- E15 An incontinence liner (1) as in any one of E5 to E14, wherein the average absorptive material density of the absorbing part (6A) is 0.1 to 0.18 g/cm 3 ; the average absorptive material density of the high diffusing parts (6DHI), (6DHF), (6DHR) is 0.2 to 0.3 g/cm 3 ; the average absorptive material density of the low diffusing parts (6DLF), (6DLR) is 0.15 to 0.25 g/cm 3 ; and the average absorptive material density of the diffusion suppressing parts (6S) is 0.01 to 0.09 g/cm 3 .
- An incontinence liner (1) provided with a liquid permeable skin contacting sheet (4), a liquid impermeable non-skin contacting sheet (5), and an absorptive body (6) arranged between the skin contacting sheet (4) and the non-skin contacting sheet (5) including an absorptive material comprising 30 to 70 mass% of a high absorption polymer, wherein
- said absorptive body (6) includes:
- an absorbing part (6A) provided at said intermediate region (61) and adapted to be positioned at a urinating position (UP) of a wearer ( ) when worn;
- peripheral edge (6P) of the absorptive body (6A) is a peripheral edge (6P) of the absorptive body (6A) ;
- the average absorptive material density of the high diffusing parts (6DHI, 6DHF, 6DHR) and low diffusing parts (6DLF, 6DLR) being higher than the average
- (6A) projects toward the skin contacting sheet (4) more than the other parts of the absorptive body (6A); and the diffusion-suppressing parts (6S) project out toward the skin contacting sheet (4) more than the diffusing parts (6D);
- said diffusion-suppressing parts (6S) are tapered; said liner (1) is provided with a pair of wings (3) for fastening said liner (1) to clothing (C) , said wings (3) provided adjoining said intermediate region (61) ; and said liner (1) is provided with a pair of
- a liquid impermeable non-skin contact side sheet arranged between the skin contact side sheet and the non-skin contact side sheet and including an absorptive material, the absorptive material including
- the absorptive body includes
- a diffusing part extending around the absorbing part up to the peripheral edge of the absorptive body, and diffusion suppressing parts scattered in the diffusing part
- an average absorptive material density of the diffusing part is higher than an average absorptive material density of the absorbing part, and an average absorptive material density of the diffusion suppressing parts is lower than the average absorptive material density of the diffusing part, and
- the absorbing part projects toward the skin contact side sheet more than the other parts of the absorptive body, and the diffusion suppressing parts project toward the skin contact side sheet more than the diffusing part.
- said absorptive body includes a front region, a rear region, and an intermediate region between the front region and the rear region,
- said absorbing part is provided inside said
- said diffusing part is provided at the intermediate region around said absorbing part and at said front region and rear region, and
- said diffusion suppressing parts are not provided at said intermediate region and are scattered in said diffusing part at least at one of said front region and rear region.
- said diffusing part includes high diffusing parts and low diffusing parts, said high diffusing parts having an average absorptive material density higher than an average absorptive material density of said low diffusing parts,
- said high diffusing parts are provided at said intermediate region around said absorbing part and at center parts of said front region and rear region in a width direction, and
- said low diffusing parts are provided at peripheral parts of said front region and rear region in the width direction .
- U5 A liner as set forth in U4, wherein said liner is provided with a pair of wings for fastening said liner t clothing, said wings adjoining said intermediate region.
- U6 A liner as set forth in any one of U3 to U5, wherein said liner is provided with a pair of compression grooves extending along two sides of said absorbing part up to said front region and rear region.
- U8 An incontinence liner comprising:
- a liquid impermeable non-skin contact side sheet and an absorptive body arranged between the skin contact side sheet and the non-skin contact side sheet and including an absorptive material, the absorptive material including 30 to 70 mass percent of a high absorption polymer, in which liner,
- said absorptive body includes
- said high diffusing parts and low diffusing parts extend up to the peripheral edge of the absorptive body
- diffusing parts and low diffusing parts are higher than an average absorptive material density of said absorbing part
- an average absorptive material density of the diffusion suppressing parts is lower than the average absorptive material densities of the high diffusing parts and low diffusing parts
- the average absorptive material density of said high diffusing parts is higher than the average absorptive material density of said low diffusing parts
- the absorbing part projects toward the skin contact side sheet more than the other parts of the absorptive body, and the diffusion suppressing parts project toward the skin contact side sheet more than the high and low diffusing parts,
- said diffusion suppressing parts are tapered in a thickness direction of the absorptive body
- said liner is provided with a pair of wings for fastening said liner to clothing, said wings adjoining said intermediate region, and
- said liner is provided with a pair of compression grooves extending along two sides of said absorbing part up to said front region and rear region.
- said adhesive stripes are positioned on opposite sides of a front or rear end of each of the compression grooves without overlapping said front or rear end.
- U10 A liner as set forth in U6, further comprising:
- non-skin contact side sheet in regions facing bottoms of the compression grooves, is free of said adhesive.
- each of the diffusion suppressing parts includes a center part and surrounding parts around the center part, the center part is greater in thickness than the
- the center part has an average absorptive material density lower than an average absorptive material density of the surrounding parts.
- the absorptive body further includes pulp, and an average basis weight of the pulp in the absorbing part is greater than an average basis weight of the pulp in the diffusing part which, in turn, is greater than an average basis weight of the pulp in the diffusion
- U14 An incontinence liner, comprising:
- the absorptive body includes
- an average absorptive material density of the diffusing part is higher than an average absorptive material density of the absorbing part, and an average absorptive material density of the diffusion suppressing parts is lower than the average absorptive material density of the diffusing part.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/810,599 US20130131623A1 (en) | 2010-08-31 | 2011-08-25 | Incontinence liner |
CN201180041325.9A CN103096852B (en) | 2010-08-31 | 2011-08-25 | Incontinence liner |
EP11821906.2A EP2611402B1 (en) | 2010-08-31 | 2011-08-25 | Incontinence liner |
KR1020137007058A KR20130101023A (en) | 2010-08-31 | 2011-08-25 | Incontinence liner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010194643A JP5631124B2 (en) | 2010-08-31 | 2010-08-31 | Incontinence liner |
JP2010-194643 | 2010-08-31 |
Publications (1)
Publication Number | Publication Date |
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WO2012029891A1 true WO2012029891A1 (en) | 2012-03-08 |
Family
ID=45772966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/069860 WO2012029891A1 (en) | 2010-08-31 | 2011-08-25 | Incontinence Liner |
Country Status (7)
Country | Link |
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US (1) | US20130131623A1 (en) |
EP (1) | EP2611402B1 (en) |
JP (1) | JP5631124B2 (en) |
KR (1) | KR20130101023A (en) |
CN (1) | CN103096852B (en) |
TW (1) | TW201225935A (en) |
WO (1) | WO2012029891A1 (en) |
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JP5623828B2 (en) * | 2010-08-31 | 2014-11-12 | 大王製紙株式会社 | Absorbent articles |
JP6022316B2 (en) * | 2012-11-16 | 2016-11-09 | 花王株式会社 | Absorbent articles |
US10864120B2 (en) | 2014-02-21 | 2020-12-15 | Attends Healthcare Products, Inc. | Absorbent article with fluid control features |
JP6416961B2 (en) | 2017-03-21 | 2018-10-31 | 大王製紙株式会社 | Absorber |
MX2021006641A (en) * | 2018-12-07 | 2021-07-15 | Essity Hygiene & Health Ab | Incontinence pad with varying thickness profile. |
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- 2011-08-25 US US13/810,599 patent/US20130131623A1/en not_active Abandoned
- 2011-08-25 EP EP11821906.2A patent/EP2611402B1/en not_active Not-in-force
- 2011-08-25 CN CN201180041325.9A patent/CN103096852B/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
EP2611402B1 (en) | 2017-08-09 |
JP2012050579A (en) | 2012-03-15 |
EP2611402A1 (en) | 2013-07-10 |
KR20130101023A (en) | 2013-09-12 |
EP2611402A4 (en) | 2014-05-28 |
CN103096852B (en) | 2014-11-12 |
US20130131623A1 (en) | 2013-05-23 |
JP5631124B2 (en) | 2014-11-26 |
CN103096852A (en) | 2013-05-08 |
TW201225935A (en) | 2012-07-01 |
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