Abstract: In a rising gathered member 4 of an absorbent main body 3 attached to an external sheet 2, an inward folded base end 4b is joined astride a side end 13a of a top sheet 13 as a top surface of the absorbent main body 3 and a side end 14a of a back sheet 14 so that the rising gathered member 4 rises from a most side edge 3a in a width direction of the absorbent main body 3 and, also, the back sheet 14 of the absorbent main body 3 is attached onto a skin-contacting surface side of a crotch part R of a second external sheet 8 at an inward position at a prescribed width W5 from the most side edge 3a of the absorbent main body 3 as an outermost joint position. With the above constitution, it is possible to effectively prevent any lateral leakage of urine and the like, even if a disposable absorbent article is shifted.

Abstract: An absorbent easily rendered three-dimensional in the central region by water absorption is composed of a sheet-like absorbent having regions where a highly absorptive component is present and regions where it is absent, these presence and absence regions parallelly extending lengthwise of a sheet-like base material and alternating with each other, the sheet-like base material being turned back along a bending line in the highly absorptive component absence regions of the sheet-like absorbent, there being at least one band-like portion of multilayer construction where the highly absorptive component presence regions are superposed in a plurality of layers.

Abstract: A bondable innermost edge e? of a hot melt adhesive to be applied to a base end 4a of each of a pair of raisable flaps 4 is disposed outside away from an inner edge 4d of the base end 4a in a state that each raisable flap 4 is folded into a multi-layered manner in bonding the base ends 4a of the raisable flaps 4 to an outer sheet at the opposite sides of an absorbent member 3 with the hot melt adhesive. This arrangement eliminates the likelihood that a free end 4b of each raisable flap 4 may be adhered to the base end 4a by an excessively and extensively applied adhesive portion even if the adhesive is excessively and extensively applied.

Abstract: In a rising gathered member 4 of an absorbent main body 3 attached to an external sheet 2, an inward folded base end 4b is joined astride a side end 13a of a top sheet 13 as a top surface of the absorbent main body 3 and a side end 14a of a back sheet 14 so that the rising gathered member 4 rises from a most side edge 3a in a width direction of the absorbent main body 3 and, also, the back sheet 14 of the absorbent main body 3 is attached onto a skin-contacting surface side of a crotch part R of a second external sheet 8 at an inward position at a prescribed width W5 from the most side edge 3a of the absorbent main body 3 as an outermost joint position. With the above constitution, it is possible to effectively prevent any lateral leakage of urine and the like, even if a disposable absorbent article is shifted.

Abstract: Inventive disposable underpants are provided with an underpants member formed of a first sheet as an outermost layer and a second sheet located inside the first sheet; an absorbent member provided on the second sheet at the inner side of the underpants member; and a trunk fittable elastic member for fitting the trunk tightly held between the first and second sheets, wherein absorbent member fixing sheets each folded to form an upper and a lower portions are transversely arranged below the absorbent member, and the upper portions of the absorbent member fixing sheets are joined with a lower surface of the absorbent member, whereas the lower portions thereof are joined with an upper surface of the second sheet. Thus, even if the disposable underpants were formed using a thin absorbent member, the absorbent member could suppress a lateral leak of urine without being twisted while the disposable underpants were worn.

Abstract: In an ultra-thin absorbent sheet member 1a in which an absorbent polymer powder 3 is adhered to one surface of a first nonwoven fabric 2 by a hotmelt adhesive such that absorbent polymer powder present areas 2c and absorbent polymer powder absent areas 2a, 2b exist; the absorbent polymer powder absent areas are present at opposite widthwise ends (2a) of the ultra-thin absorbent sheet member and at least one position (2b) between the opposite ends; the absorbent polymer powder 3 is bonded to the first nonwoven fabric 2 by first hotmelt adhesive layers S1 formed on an upper side of the first nonwoven fabric 2 and on a lower side of the absorbent polymer powder 3 and a second hotmelt adhesive layer S2 formed to cover upper sides of the absorbent polymer powder present areas 2c and the absorbent polymer powder absent areas 2a, 2b; and the first hotmelt adhesive layer S1 and the second hotmelt adhesive layer S2 are both made of an aggregate of linear hotmelt adhesive pieces.

Abstract: A bondable innermost edge e? of a hot melt adhesive to be applied to a base end 4a of each of a pair of raisable flaps 4 is disposed outside away from an inner edge 4d of the base end 4a in a state that each raisable flap 4 is folded into a multi-layered manner in bonding the base ends 4a of the raisable flaps 4 to an outer sheet at the opposite sides of an absorbent member 3 with the hot melt adhesive. This arrangement eliminates likelihood that a free end 4b of each raisable flap 4 may be adhered to the base end 4a by an excessively and extensively applied adhesive portion even if the adhesive is excessively and extensively applied.

Abstract: In a disposable diaper in which an absorbent body is provided between a water-repellent outer sheet and a hydrophilic skin-side sheet made of a nonwoven fabric, raisable strips made of a nonwoven fabric are provided at the opposite sides of the skin-side sheet, elastic threads for raisable gathers are provided in inner edge portions of the raisable strips and the outer edge portions of the raisable strips are adhered to the skin-side sheet, an ooze preventing portion for preventing an ooze of urine and other bodily waste is formed at opposite end portions of the skin-side sheet. Therefore, even if urine and other bodily waste permeate into the skin-side sheet, they do not ooze out from the end portion of the skin-side sheet.

Abstract: An absorbent easily rendered three-dimensional in the central region by water absorption is composed of a sheet-like absorbent having regions where a highly absorptive component is present and regions where it is absent, these presence and absence regions parallelly extending lengthwise of a sheet-like base material and alternating with each other, the sheet-like base material being turned back along a bending line in the highly absorptive component absence regions of the sheet-like absorbent, there being at least one band-like portion of multilayer construction where the highly absorptive component presence regions are superposed in a plurality of layers.

Abstract: An absorbent sheet having concave and convex portions on its surface and spontaneously exhibiting a three-dimensional structure in that a concave-convex structure is formed wherein when the difference in level between the concave and the convex portion is A mm in a state where water is not absorbed (dry state) the difference in level between the concave and the convex portion becomes 2A or more after water is absorbed, due to the bulging in parts caused by absorption of water and resultant swelling.

Abstract: Elastic threads for raisable gathers and elastic threads for leg gathers are provided in a specified relationship in side sheets provided at the opposite sides of a skin-side sheet, and the respective side sheets are adhered to the skin-side sheet in a specified relationship. In this way, the raisable gathers and leg gathers can be simultaneously formed in the side sheets. Further, a pocket into which an exchangeable and substantially sandglass-shaped second absorbent body can be positioned and inserted is formed between the skin-side sheet enclosed by the respective adhered portions and the respective side sheets.

Abstract: An absorbent article having raisable strips with inner portions of the raisable strips arranged at the opposite side of the absorbent article being folded to have a Z-shaped cross section. Bottom portions of the Z-shaped inner portions are bonded to a top sheet of the absorbent article, and elastic members are mounted in top portions of the Z-shaped inner portions so that the top portions are raised flat together with slanted side portions of the Z-shaped inner portions.

Abstract: Inventive disposable underpants are provided with an underpants member formed of a first sheet as an outermost layer and a second sheet located inside the first sheet; an absorbent member provided on the second sheet at the inner side of the underpants member; and a trunk fittable elastic member for fitting the trunk tightly held between the first and second sheets, wherein absorbent member fixing sheets each folded to form an upper and a lower portions are transversely arranged below the absorbent member, and the upper portions of the absorbent member fixing sheets are joined with a lower surface of the absorbent member, whereas the lower portions thereof are joined with an upper surface of the second sheet. Thus, even if the disposable underpants were formed using a thin absorbent member, the absorbent member could suppress a lateral leak of urine without being twisted while the disposable underpants were worn.

Abstract: Elastic threads 9 for raisable gathers and elastic threads 10 for leg gathers are provided in a specified relationship in side sheets 4 provided at the opposite sides of a skin-side sheet 3, and the respective side sheets 4 are adhered to the skin-side sheet 3 in a specified relationship. In this way, the raisable gathers and leg gathers can be simultaneously formed at side sheets 4. Further, a pocket into which an exchangeable and substantially sandglass-shaped second absorbent body 11 can be positioned and inserted is formed between the skin-side sheet 3 enclosed by the respective adhered portions and the respective side sheets 4.

Abstract: In a disposable diaper in which an absorbent body is provided between a water-repellent outer sheet and a hydrophilic skin-side sheet made of a nonwoven fabric, raisable strips made of a nonwoven fabric are provided at the opposite sides of the skin-side sheet, elastic threads for raisable gathers are provided in inner edge portions of the raisable strips and the outer edge portions of the raisable strips are adhered to the skin-side sheet, an ooze preventing portion 10 (or 11a or 11c) for preventing an ooze of urine and other bodily waste is formed at opposite end portions of the skin-side sheet 3. Therefore, even if urine and other bodily waste permeate into the skin-side sheet 3, they do not ooze out from the end portion of the skin-side sheet 3.

Abstract: In an ultra-thin absorbent sheet member 1a in which an absorbent polymer powder 3 is adhered to one surface of a first nonwoven fabric 2 by a hotmelt adhesive such that absorbent polymer powder present areas 2c and absorbent polymer powder absent areas 2a, 2b exist; the absorbent polymer powder absent areas are present at opposite widthwise ends (2a) of the ultra-thin absorbent sheet member and at least one position (2b) between the opposite ends; the absorbent polymer powder 3 is bonded to the first nonwoven fabric 2 by first hotmelt adhesive layers S1 formed on an upper side of the first nonwoven fabric 2 and on a lower side of the absorbent polymer powder 3 and a second hotmelt adhesive layer S2 formed to cover upper sides of the absorbent polymer powder present areas 2c and the absorbent polymer powder absent areas 2a, 2b; and the first hotmelt adhesive layer S1 and the second hotmelt adhesive layer S2 are both made of an aggregate of linear hotmelt adhesive pieces.

Abstract: A porous sintered body is composed of a perovskite-type composite oxide, wherein A-site of the composite oxide are occupied by one or more kinds of first metallic elements selected from the group consisting of calcium and strontium, one or more kinds of second metal elements selected from the group consisting of rare earth elements and yttrium excluding lanthanum and cerium, and lanthanum, the above one or more kinds of the first metallic elements amount to 5 to 70 mol % of the A-sites, and manganese is contained in B-sites of the composite oxide.

Abstract: A porous sintered body composed mainly of lanthanum manganite in which a part of lanthanum atoms at A-sites of the lanthanum manganite are substituted by atoms of a metal selected from the group consisting of alkaline earth metals and rare earth metals. The dimensional shrinkage amount of the porous sintered body in heat cycling between room temperature and 1,000.degree. C. is not more than 0.01% per one heat cycle.