12.03.21
Sadanao Manabe, Tokyo, Japan; Ryoichi Ochi, Ehime, Japan; Yosuke Mori, Ehime, Japan; and Yohei Ono, Ehime, Japan.
Assigned to Daio Paper Corporation, Ehime, Japan.
Filed: 2/23/17
Issued: 11/2/21
An absorbent article comprising an absorber having a front surface side and a back surface side, the absorber including: a front surface side sheet; a back surface side sheet disposed on the back surface side of the front surface side sheet; a plurality of cells each of which is surrounded by bonded portions of the front surface side sheet and the back surface side sheet and inside each of which the front surface side sheet and the back surface side sheet are not bonded; and particulate materials which include superabsorbent polymer particles and which are contained in each of the cells, wherein the bonded portions are provided in continuous line shapes or dotted line shapes so as to form a pattern of same-sized octagons arranged without space in both a front-back direction and a width direction, wherein the width direction is orthogonal to the front-back direction; wherein the pattern of same-sized octagons are arranged such that all interior angles of the octagons are 135°, and lengths of two pairs of opposite sides of the octagons whose facing directions are mutually orthogonal are equal; wherein the pattern of same-sized octagons define diamond-shaped cells between the plurality of cells, and lengths of all sides of each diamond-shaped cell being equal; wherein the bonded portions comprise strong bonded portions and weak bonded portions, and wherein at least two continuous sides in each of the octagons are weak bonded portions which can be peeled off due to a swelling force of the superabsorbent polymer particles in the cells adjacent to the bonded portions; wherein strong bonded portions provided in a center portion and side portions on either side of the center portion along the width direction are longitudinal strong-bond lines, each of the longitudinal strong-bond lines continuously extending in the front-back direction; wherein strong bonded portions provided in a zigzag shape bending left and right between the longitudinal-strong-bond line in the center portion and each of the longitudinal-strong-bond lines in the side portions are lateral-strong-bond lines; and wherein the longitudinal-strong-bond lines and the lateral-strong-bond lines define maximum enlargement sections, each of the maximum enlargement sections having a substantially triangular shape.
Assigned to Daio Paper Corporation, Ehime, Japan.
Filed: 2/23/17
Issued: 11/2/21
An absorbent article comprising an absorber having a front surface side and a back surface side, the absorber including: a front surface side sheet; a back surface side sheet disposed on the back surface side of the front surface side sheet; a plurality of cells each of which is surrounded by bonded portions of the front surface side sheet and the back surface side sheet and inside each of which the front surface side sheet and the back surface side sheet are not bonded; and particulate materials which include superabsorbent polymer particles and which are contained in each of the cells, wherein the bonded portions are provided in continuous line shapes or dotted line shapes so as to form a pattern of same-sized octagons arranged without space in both a front-back direction and a width direction, wherein the width direction is orthogonal to the front-back direction; wherein the pattern of same-sized octagons are arranged such that all interior angles of the octagons are 135°, and lengths of two pairs of opposite sides of the octagons whose facing directions are mutually orthogonal are equal; wherein the pattern of same-sized octagons define diamond-shaped cells between the plurality of cells, and lengths of all sides of each diamond-shaped cell being equal; wherein the bonded portions comprise strong bonded portions and weak bonded portions, and wherein at least two continuous sides in each of the octagons are weak bonded portions which can be peeled off due to a swelling force of the superabsorbent polymer particles in the cells adjacent to the bonded portions; wherein strong bonded portions provided in a center portion and side portions on either side of the center portion along the width direction are longitudinal strong-bond lines, each of the longitudinal strong-bond lines continuously extending in the front-back direction; wherein strong bonded portions provided in a zigzag shape bending left and right between the longitudinal-strong-bond line in the center portion and each of the longitudinal-strong-bond lines in the side portions are lateral-strong-bond lines; and wherein the longitudinal-strong-bond lines and the lateral-strong-bond lines define maximum enlargement sections, each of the maximum enlargement sections having a substantially triangular shape.