Method for simultaneously imprinting a pattern and bonding cellulose webs using ultrasonic energy

摘要

A method of simultaneously laminating and imprinting a pattern on a web formed substantially from cellulosic material, using at least two plies or layers, and superposing the plies and passing the plies past an ultrasonic bonder and a patterned anvil roll to simultaneously produce either substantially imprinted patterned and bonded areas over the superposed plies or substantially patterned perforations and bonded areas over the superposed plies.