| 摘要 |
A multilayer absorbent core for use in disposable absorbent articles, and manufacturing method thereof; the absorbent core is formed by compacting respective layers; the surface of the absorbent core has grid grooves, and the groove depth at the cross points of the grid grooves is greater than the groove depth at non-cross points. A novel synchronous staggered-layer compacting process is employed, that is, a linear reticular trapezoid compacting mechanism (1) having the height lower than a cone structure (2) partially compacts the absorbent core while the cone structure (2) compacts the absorbent core in a dotted manner, and the absorbent core is divided into a plurality of small protruding spaces to completely restrict the migration of polymer absorbent material in the absorbent core while maintaining the drainage function of a flow directing layer and a liquid storage layer, as well as increasing the strength of the core. The present invention adjusts the structure and manufacturing process of the core, allowing the improved multilayer-structure absorbent core to have greater liquid absorption, higher liquid absorption speed and increased strength. |
