Sealable nonwoven web

DETAILED DESCRIPTION OF THE INVENTION The nonwoven web incorporating the polymeric resin performs multiple functions in the process for making laminates for disposable goods and these primarily include supplying wet strength to the nonwoven web and supplying sufficient pressure sensitive adhesion to permit the nonwoven web to adhere to itself or to polymeric films and substrates employed in the manufacture of laminates for use in preparing disposable absorbent products.
The use of these unique nonwoven webs permits one to alter the way such laminates are made in that one may eliminate some process steps and/or reduce energy requirements associated with the manufacture of the laminate products.
The nonwoven web is key to producing the laminates for disposable absorbent products contemplated herein.
To form the laminate containing the super absorbent within fixed location the nonwoven web should have sufficient pressure sensitive adhesive characteristics provided by the binder to provide a peel strength ranging from a low of about 50 g/5 cm to about 400 g/5 cm width and yet have a wet strength to provide a wet strength of at least 300 g/5 cm width.
Preferably, the peel strength is within a range of 60 to 150 g/5 cm width and the wet strength is at least 1000 g/5 cm width.
When the nonwoven web has a peel strength within this range, the nonwoven web can be forced to adhere to itself under application of localized pressure but at the same time be "delaminated from itself when wound into a large roll.
The wet strength requirement is necessary to prevent disintegration under wet conditions.
In some cases, that wet strength is not required.
This wet strength is imparted through the crosslinkable functionality in the binder impregnated in the nonwoven webs.
Too much crosslinking function tends to destroy the pressure sensitive characteristics of the nonwoven web thus rendering it unsuited for the process for preparing the laminate.
The nonwoven webs comprise a structure of fibers or filaments interlayed in a random fashion bonded together with a preferably, crosslinkable vinyl acetate/ethylene adhesive