07.31.17
Hiroki Goda, Kagawa, Japan; Shinichi Ishikawa, Kagawa, Japan; Kengo Ochi, Kagawa, Japan; Koichiro Mitsui, Kagawa, Japan; Masashi Nakashita, Kagawa, Japan; and Satoru Tange, Kagawa, Japan.
Assigned to Unicharm Corporation, Ehime, Japan.
Filed: 10/17/13
Issued: 4/18/17
A method for producing an absorbent body for an absorbent article including the absorbent core material containing therein hydrophilic fibers and superabsorbent polymer particles and covered with at least partially liquid-permeable cover sheet, wherein: in a step of forming a first liquid absorbent layer containing the hydrophilic fibers and the superabsorbent polymer particles in a mixed state and a second liquid absorbent layer containing the hydrophilic fibers but none of the superabsorbent polymer particles so that these two liquid absorbent layers overlap with each other on a support running in a machine direction, the hydrophilic fibers are dispersed toward the support within a chamber partially covering the support and the superabsorbent polymer particles are dispersed toward the support from an opening of a dispersing pipe set at least one of inside and outside the chamber wherein a distance dimension between the dispersing pipe set inside the chamber and the support is in a range of 5 to 20 mm and a distance dimension between the dispersing pipe set outside the chamber and the support is in a range of 5 to 100 mm; and the dispersing pipe set outside the chamber is set at least one of upstream and downstream in the machine direction of the chamber.
Assigned to Unicharm Corporation, Ehime, Japan.
Filed: 10/17/13
Issued: 4/18/17
A method for producing an absorbent body for an absorbent article including the absorbent core material containing therein hydrophilic fibers and superabsorbent polymer particles and covered with at least partially liquid-permeable cover sheet, wherein: in a step of forming a first liquid absorbent layer containing the hydrophilic fibers and the superabsorbent polymer particles in a mixed state and a second liquid absorbent layer containing the hydrophilic fibers but none of the superabsorbent polymer particles so that these two liquid absorbent layers overlap with each other on a support running in a machine direction, the hydrophilic fibers are dispersed toward the support within a chamber partially covering the support and the superabsorbent polymer particles are dispersed toward the support from an opening of a dispersing pipe set at least one of inside and outside the chamber wherein a distance dimension between the dispersing pipe set inside the chamber and the support is in a range of 5 to 20 mm and a distance dimension between the dispersing pipe set outside the chamber and the support is in a range of 5 to 100 mm; and the dispersing pipe set outside the chamber is set at least one of upstream and downstream in the machine direction of the chamber.
