APPARATUS AND PROCESS FOR APERTURING AND STRETCHING A WEB
摘要
<p>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.</p>
申请公布号
CA2871673(A1)
申请公布日期
2013.10.31
申请号
CA20132871673
申请日期
2013.04.25
申请人
THE PROCTOR & GAMBLE COMPANY
发明人
COE, RICHARD GEORGE;ORR, JILL MARLENE;GROSS, SARAH BETH;ISBURGH, ROBERT KARL;KOCHER, LEROY JOSEPH;MUHS, KEVIN GERARD;MULLANE, TIMOTHY IAN