Absorbent core having varied basis weight of absorbent material and adhesive

摘要

An absorbent core comprising a substrate layer and an absorbent layer, the absorbent layer comprising an absorbent material and a thermoplastic adhesive material; the absorbent core has longitudinal and transverse dimensions and consists of nine transverse segments in its longitudinal dimension and six longitudinal segments in its transverse dimension; in each of the transverse segments and longitudinal segments, the absorbent layer has average basis weights of absorbent material of thermoplastic adhesive material; the basis weights of the absorbent layer in at least one of the transverse segments are lower than the basis weights of the absorbent layer in at least one other of the transverse segments; and the basis weights of the absorbent layer in at least one of the longitudinal segments are lower than the basis weights of the absorbent layer in at least one other of the longitudinal segments.

主权项

1. An absorbent core for disposable absorbent articles comprising one or more absorbent structures, said absorbent structure comprising a substrate layer and an absorbent layer, said absorbent layer comprising an absorbent material supported by, and immobilized on said substrate layer by a thermoplastic adhesive material;
wherein said absorbent core has a longitudinal dimension having a length and a transverse dimension having a width and consists of nine transverse segments in its longitudinal dimension and of six longitudinal segments in its transverse dimension; wherein each of the transverse segments have a length which is equal to the width of the absorbent core and a width which correspond to 1/9 of the length of the absorbent core; wherein each of the longitudinal segments have a length which is equal to the length of the absorbent core and a width which correspond to ⅙ of the width of the absorbent core; wherein in each of said transverse segments, the absorbent layer has an average basis weight of absorbent material (APMt BWav) and an average basis weight of thermoplastic adhesive material (TAMt BWav) immobilizing said absorbent material; wherein in each of said longitudinal segments, the absorbent layer has an average basis weight of absorbent material (APM1 BWav) and an average basis weight of thermoplastic adhesive material (TAM1 BWav) immobilizing said absorbent material; wherein said absorbent core comprises six transverse segments wherein the APMt BWav and TAMt BWav of the absorbent layer are lower relative to the APMt BWav and TAMt BWav of the absorbent layer in at least one other of said transverse segments; and wherein the APM1 BWav and TAM1 BWav of the absorbent layer in at least one of said longitudinal segments are lower relative to the APM1 BWav and TAM1 BWav of the absorbent layer in at least one other of said longitudinal segments.