COMPOSITE ABSORBENT STRUCTURE AND DISPOSABLE ABSORBENT PRODUCT ESPECIALLY FOR HYGIENIE PURPOSES AND A METHOD FOR REDUCING THE FLUID PENERATION TIME IN A COMPOSITE DISPOSABLE ABSORBENT PRODUCT

摘要

A composite absorbent structure capable of extremely short fluid penetration time, well-suited for use as an absorbent core in disposable absorbent products such as adult disposable briefs, diapers, incontinence pads, sanitary napkins, wound dressings and bandages. The composite absorbent structure (16) comprises a highly absorbent fluid transfer sheet (18) having a low fluid retentiveness, and a laminated, wicking reservoir (20) with a high fluid retentiveness in intimate fluid communication with the fluid transfer sheet to draw fluid therefrom under the effect of capillary action. The laminated reservoir includes superposed layers (22,24), the layer closest to the fluid transfer sheet being provided with a fluid distribution well (26). A highly porous and hydrophilic spacer element (27) is inserted between the reservoir layers establishing a high void volume area which forms an extension of the fluid absorptive well between the reservoir layers. The invention also comprehends a method for providing a rapid fluid absorption in a disposable absorbent product. IMAGE