US 12,440,395 B2
Pant-type absorbent article and manufacturing method thereof
Xu Gao, Beijing (CN); Ling Tong, Beijing (CN); Abhishek Prakash Surushe, Kelkhelm (DE); Koichi Morimoto, Beijing (CN); Hiroshi Fujikawa, Himeji (JP); Masayuki Tsuji, Kakogawa (JP); DonSub Lee, Kobe (JP); and Kazuaki Tameishi, Kobe (JP)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Feb. 22, 2021, as Appl. No. 17/180,978.
Claims priority of application No. PCT/CN2020/077152 (WO), filed on Feb. 28, 2020; and application No. PCT/CN2020/104295 (WO), filed on Jul. 24, 2020.
Prior Publication US 2021/0267815 A1, Sep. 2, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 13/49 (2006.01); A61F 13/15 (2006.01); A61F 13/494 (2006.01); A61F 13/496 (2006.01); A61F 13/53 (2006.01); A61F 13/84 (2006.01)
CPC A61F 13/49011 (2013.01) [A61F 13/15593 (2013.01); A61F 13/15699 (2013.01); A61F 13/49012 (2013.01); A61F 13/49014 (2013.01); A61F 13/49453 (2013.01); A61F 13/49466 (2013.01); A61F 13/496 (2013.01); A61F 13/4963 (2013.01); A61F 13/53 (2013.01); A61F 2013/15325 (2013.01); A61F 2013/15365 (2013.01); A61F 2013/49028 (2013.01); A61F 2013/49033 (2013.01); A61F 2013/49038 (2013.01); A61F 2013/49076 (2013.01); A61F 2013/49092 (2013.01); A61F 2013/8402 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An absorbent article having a longitudinal direction and a transverse direction comprising a front elastic belt, a back elastic belt, a crotch region, a waist opening, and a pair of leg openings; the crotch region extending longitudinally between the front elastic belt and the back elastic belt;
the absorbent article comprising an absorbent main body extending an entire longitudinal dimension of the crotch region and further extending partly into each of the front elastic belt and the back elastic belt, the absorbent main body comprising a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent material region sandwiched therebetween;
an entirety of a length of the transverse edges of the front elastic belt is seamed with a certain length of transverse edges of the back elastic belt to define a pair of side seams, wherein the side seams have a seam length LS; and
wherein the back elastic belt divided into multiple zones spanning in the transverse direction and defined by its location from a distal edge to a proximal edge relative to a percentage of the seam length LS, wherein the distal edge is considered 0% and the proximal edge is considered 100%; and
wherein a waist guard portion extends towards the crotch region from a closed base line towards an open edge, wherein the waist guard portion is partially bonded to a remainder of the back elastic belt to define a pocket, wherein an area of the pocket substantially superposes the backsheet, wherein the back elastic belt is divided into 3 zones wherein: 0% to a distal edge of the waist guard portion is a back waist zone, the distal edge to a proximal edge of the waist guard portion is a protective zone, and the proximal edge of the waist guard portion to 100% is a buttock zone, wherein elastic members are disposed on each of the back waist zone, the protective zone other than the waist guard portion, and the buttock zone, and a tensile stress of the protective zone is higher than a tensile stress of either the back waist zone or the buttock zone.