COVER SHEET LAMINATION FOR ABSORBENT ARTICLE AND LOW TEMPERATURE LAMINATION PROCESS

摘要

This invention relates to an improvement in a disposable absorbent article such as a sanitary napkin, etc. having multi-layer construction. The disposable absorbent article is comprised of a liquid permeable cover sheet or cover sheet having a wearer contact side and an underside, optionally a distribution or transfer layer, at least one absorbent core and a liquid-impermeable backsheet. The disposable absorbent article is constructed such that the absorbent core is disposed between the cover sheet and the backsheet and the distribution layer is disposed between the underside of the cover sheet and the absorbent core. The improvement in the disposable absorbent article resides in an improved bond for generally continuous contact between the cover sheet and the transfer layer or absorbent core and is comprised of the following: said liquid-pervious cover sheet having said under side coated with an adhesive binder obtained by emulsion polymerization, said adhesive binder applied in a grid pattern to its underside; said distribution layer or absorbent core each formed from an air-laid, nonwoven web comprised of randomly distributed fibers, the fibers therein bonded with a binder obtained by emulsion polymerization, said binder employed in forming air-laid, nonwoven web being adhesively compatible with said binder bonded to the adhesive on said cover sheet; and, said underside of said liquid-pervious cover sheet coated with an adhesive binder and bonded to the surface of the air-laid nonwoven web.