Abstract: A disposable diaper (1) has a waist opening portion and a pair of leg opening portions and contains an absorbent body including a topsheet and an absorbent core. The absorbent core (4) is composed of a central absorbent member (41) and a pair of side absorbent members (42) disposed on both sides of the central absorbent member (41). The central absorbent member (41) is discrete from the side absorbent members (42) in at least the crotch portion (C). Each side absorbent member has a raising elastic member which is provided near its outboard edge along the longitudinal direction, so that the side absorbent member (42) rises while worm. The diaper is configured to exert a higher wearing pressure in its regions (91) that are to be applied to a wearer's body part between the iliac crests and the anterior superior iliac spines than in its waist opening portion while worn.

Abstract: A disposable diaper (1) has a waist opening portion and a pair of leg opening portions and contains an absorbent body including a topsheet and an absorbent core. The absorbent core (4) is composed of a central absorbent member (41) and a pair of side absorbent members (42) disposed on both sides of the central absorbent member (41). The central absorbent member (41) is discrete from the side absorbent members (42) in at least the crotch portion (C). Each side absorbent member has a raising elastic member which is provided near its outboard edge along the longitudinal direction, so that the side absorbent member (42) rises while worm. The diaper is configured to exert a higher wearing pressure in its regions (91) that are to be applied to a wearer's body part between the iliac crests and the anterior superior iliac spines than in its waist opening portion while worn.

Abstract: A disposable diaper capable of being put on from either the front or the back of a wearer is disclosed. The longitudinal end section having the fastening tapes has a waist elastic member and an extensible side part. The absorbent member is disposed such that its longitudinal end in the section having the fastening tapes is nearer to the waist portion of that section than the centerline parallel to the diaper width direction and dividing each of the extensible side parts into equal halves. Two portions on opposite sides of the centerline dividing the length of the diaper in equal halves have a saturated absorption capacity ratio of 45/55 to 55/45. The natural length of the waist elastic member in the state removed from the diaper is 60 to 80% of the length of the waist elastic member as provided in the diaper.

Abstract: A disposable diaper capable of being put on from either the front or the back of a wearer. The ratio of the minimum width W1 of the crotch section to the whole width W2 of the longitudinal end section having the fastening tapes is from 0.30 to 0.75. The minimum width W1 is in the area extending from the centerline across the diaper that divides the diaper length in two equal halves toward both the longitudinal end sections thereof by ±10% of the total length of the diaper. The area ratio S1/S2 is from 0.45 to 0.60, where S1 is the area of each region surrounded by an imaginary straight line L1, an imaginary straight line L2, and each arched side edge of the crotch section, and S2 is the area of each region surrounded by the line L1, the line L2, and an imaginary straight line L3.

Abstract: A disposable diaper capable of being put on from either the front or the back of a wearer. The ratio of the minimum width W1 of the crotch section to the whole width W2 of the longitudinal end section having the fastening tapes is from 0.30 to 0.75. The minimum width W1 is in the area extending from the centerline across the diaper that divides the diaper length in two equal halves toward both the longitudinal end sections thereof by ±10% of the total length of the diaper. The area ratio S1/S2 is from 0.45 to 0.60, where S1 is the area of each region surrounded by an imaginary straight line L1, an imaginary straight line L2, and each arched side edge of the crotch section, and S2 is the area of each region surrounded by the line L1, the line L2, and an imaginary straight line L3.

Abstract: An absorbent article which is provided with a liquid permeable surface sheet (2), a liquid impermeable leakage-prevention sheet (3) and a liquid-retaining absorbent (4) interposed between the sheets, is formed substantially oblong, and is provided on the longitudinal opposite sides thereof with a pair of right and left, elastic member-carrying three-dimensional guards (5), (5), wherein the guards (5) each has a skin-contacting surface portion (5A) formed by folding back a side on the free end (53) toward the outer side of the diaper, and elastic members in a stretched condition are respectively disposed and fixed to the skin-contacting surface portion (5A) and to the approximately widthwise central portion of a raised portion (5B) between the skin-contacting surface portion (5A) and the base end (52) of a three-dimensional guard body.

Abstract: A disposable diaper capable of being put on from either the front or the back of a wearer is disclosed. The longitudinal end section having the fastening tapes has a waist elastic member and an extensible side part. The absorbent member is disposed such that its longitudinal end in the section having the fastening tapes is nearer to the waist portion of that section than the centerline parallel to the diaper width direction and dividing each of the extensible side parts into equal halves. Two portions on opposite sides of the centerline dividing the length of the diaper in equal halves have a saturated absorption capacity ratio of 45/55 to 55/45. The natural length of the waist elastic member in the state removed from the diaper is 60 to 80% of the length of the waist elastic member as provided in the diaper.

Abstract: A disposable diaper easy to put on a wearer in a standing position comprising a liquid permeable topsheet 2, a liquid impermeable backsheet 3, an absorbent member 4 interposed between the two sheets and having a pair of laterally extensible side parts on the below-waist portion of one longitudinal end section and a pair of standing gathers, wherein the region having the absorbent member in the crotch section contains a region having a lateral flexural stiffness of 25 gf/50 mm or less, the standing gathers are formed by fixing an elastic member at a fixing extension ratio of 100% or higher, and the standing gathers on each side, when extended in their non-fixed state, have a tensile load of from 20 to 120 gf at an effective extension ratio (fixing extension ratio—30%), and provides a tensile load increase rate of 1.0 gf/% or lower required to extend from a 20% extension ratio to the effective extension ratio.

Abstract: A flat type disposable diaper with a pair of waistbands, which has a pair of standing gathers formed on longer sides thereof and contains a region having a lateral bending stiffness of 25 cN/50 mm or less within a region having an absorbent member in the crotch portion. The standing gathers are fixed at an extension ratio of 100% or higher and have such tensile characteristics in their state not fixed to the diaper that the tensile load required to extend to an effective extension ratio is 20 to 120 cN and that the increase rate of tensile load required for extending from an extension ratio of 20% up to the effective extension ratio is 1.0 cN/% or lower, the effective extension ratio being 30% lower than the fixing extension ratio.

Abstract: The disposable diaper of the present invention has a substantially elongate configuration and comprises a main body having a liquid-permeable topsheet, a liquid-impermeable backsheet, and a liquid-retentive absorbent member interposed between the topsheet and the backsheet and a pair of fastening tapes provided on each side edge of the main body, the waist opening portion and the under-waist portion in the portion having the fastening tapes being provided with a waist elastic member and a plurality of under-waist elastic members, respectively, in the width direction of the diaper, and both longer side portions of the diaper being provided with a pair of leg elastic members, wherein the under-waist elastic members are fixedly disposed in at least areas extending outwardly from each longer side of the absorbent member in their stretched state so as to manifest elastic contractibility but are not disposed in at least the middle of the area where the absorbent member exists, and the under-waist portion has a grea

Abstract: A disposable diaper according to the present invention includes a liquid permeable top sheet, a liquid impermeable back sheet, and a liquid retentive absorbent member interposed between the top sheet and the back sheet, and having a pair of inner sheets which are connected to the back sheet and are provided at opposite longitudinal side portions of the disposable diaper on its top sheet side such that the longitudinal inner side edges of the inner sheets are located inwardly along the longitudinal side edges of the absorbent member. Each of the inner sheets includes a laminate of a non-woven fabric and a film, and each inner sheet is arranged such that the non-woven fabric is located on the skin-contacting surface side of the diaper, and wherein the back sheet includes a laminate of non-woven fabric and a film. The back sheet is arranged such that the non-woven fabric is located on the outer skin-noncontacting surface side of the laminate.

Abstract: A disposable diaper according to the present invention includes a liquid permeable top sheet, a liquid impermeable back sheet, and a liquid retentive absorbent member interposed between the top sheet and the back sheet, and having a pair of inner sheets which are connected to the back sheet and are provided at opposite longitudinal side portions of the disposable diaper on its top sheet side such that the longitudinal inner side edges of the inner sheets are located inwardly along the longitudinal side edges of the absorbent member. Each of the inner sheets includes a laminate of a non-woven fabric and a film, and each inner sheet is arranged such that the non-woven fabric is located on the skin-contacting surface side of the diaper, and wherein the back sheet includes a laminate of non-woven fabric and a film. The back sheet is arranged such that the non-woven fabric is located on the outer skin-noncontacting surface side of the laminate.