12.11.24
Kosuke Arita, Utsunomiya, Japan; Akiyuki Ueda, Utsunomiya, Japan; Yuko Fukuda, Mashiko-machi, Japan; and Yasuyuki Okuda, Utsunomiya, Japan.
Assigned to Kao Corporation, Tokyo, Japan.
Filed: 12/27/17
Issued: 10/22/24
An absorbent article comprising a liquid-retentive absorbent member, and a leg cuff extending outward in a width direction from each of two lateral side portions of the absorbent member that extend in a longitudinal direction, the leg cuff extending along the lateral side portion, wherein two or more leg elastic members extending in the longitudinal direction are arranged in the leg cuff in a stretched state, the leg cuff is divided, in a maximally stretched state, by an imaginary line extending in the longitudinal direction through a center in the width direction between the leg elastic members, an outermost leg elastic member located farthest outward in the width direction and an innermost leg elastic member located farthest inward in the width direction, into a leg cuff first region that extends from the imaginary line up to and comprising the outermost leg elastic member and a leg cuff second region that extends from the imaginary line up to and comprising the innermost leg elastic member, and when an elongation amount of the leg cuff first region and the leg cuff second region in a natural state is defined as 0, and the elongation amount thereof in a maximally stretched state is defined as 100, stress in the leg cuff first region is greater than stress in the leg cuff second region when the elongation amount is 5, and stress in the leg cuff second region is greater than stress in the leg cuff first region when the elongation amount is 100, wherein, in a natural state of the leg cuff, a section of the leg cuff first region where the outermost leg elastic member is arranged has a shorter length than a section of the leg cuff second region where the innermost leg elastic member is arranged, wherein a relationship in magnitude between stress in the leg cuff first region and stress in the leg cuff second region is reversed when the elongation amount is within a range from 6 to 70, and wherein the elongation percentage Ss of the outermost leg elastic member is higher than the elongation percentage Si of the innermost leg elastic member arranged in the leg cuff second region, and a value of Ss/Si of the elongation percentage Ss of the outermost leg elastic member to the elongation percentage Si of the innermost leg elastic member arranged in the leg cuff second region is from 1.01 to 2.00.
Assigned to Kao Corporation, Tokyo, Japan.
Filed: 12/27/17
Issued: 10/22/24
An absorbent article comprising a liquid-retentive absorbent member, and a leg cuff extending outward in a width direction from each of two lateral side portions of the absorbent member that extend in a longitudinal direction, the leg cuff extending along the lateral side portion, wherein two or more leg elastic members extending in the longitudinal direction are arranged in the leg cuff in a stretched state, the leg cuff is divided, in a maximally stretched state, by an imaginary line extending in the longitudinal direction through a center in the width direction between the leg elastic members, an outermost leg elastic member located farthest outward in the width direction and an innermost leg elastic member located farthest inward in the width direction, into a leg cuff first region that extends from the imaginary line up to and comprising the outermost leg elastic member and a leg cuff second region that extends from the imaginary line up to and comprising the innermost leg elastic member, and when an elongation amount of the leg cuff first region and the leg cuff second region in a natural state is defined as 0, and the elongation amount thereof in a maximally stretched state is defined as 100, stress in the leg cuff first region is greater than stress in the leg cuff second region when the elongation amount is 5, and stress in the leg cuff second region is greater than stress in the leg cuff first region when the elongation amount is 100, wherein, in a natural state of the leg cuff, a section of the leg cuff first region where the outermost leg elastic member is arranged has a shorter length than a section of the leg cuff second region where the innermost leg elastic member is arranged, wherein a relationship in magnitude between stress in the leg cuff first region and stress in the leg cuff second region is reversed when the elongation amount is within a range from 6 to 70, and wherein the elongation percentage Ss of the outermost leg elastic member is higher than the elongation percentage Si of the innermost leg elastic member arranged in the leg cuff second region, and a value of Ss/Si of the elongation percentage Ss of the outermost leg elastic member to the elongation percentage Si of the innermost leg elastic member arranged in the leg cuff second region is from 1.01 to 2.00.
