Leroy Joseph Kocher;Jill Marlene Orr;Sarah Beth Gross;Robert Karl Isburgh;Timothy Ian Mullane;Richard George Coe;Kevin Gerard Muhs
发明人:
Richard George Coe,Jill Marlene Orr,Sarah Beth Gross,Robert Karl Isburgh,Leroy Joseph Kocher,Kevin Gerard Muhs,Timothy Ian Mullane
申请号：
US13455857
公开号：
US09242406B2
申请日:
2012.04.25
申请国别(地区):
US
年份:
2016
代理人:
摘要：
Apparatuses and processes for aperturing and stretching a web are disclosed. In one embodiment, the method involves feeding a web into a nip that is formed between at least one pair of intermeshing rolls. The first roll is a raised ridge rotary knife aperturing roll and the second roll is a ring roll； both rolls comprise ridges and grooves. The first roll comprises a plurality of spaced-apart teeth extending outwardly from the top surface of the ridges, said teeth having tips, wherein the top surface of said ridges are disposed between the tips of said teeth and the bottom surface of said grooves. These apparatuses and processes enable a web to be formed which comprises apertures having greater open area than previously achievable with traditional processes and apparatuses.
