Simplified process for making thick fibrous structures
摘要
The invention relates to a process for making thick fibrous structures. More particularly, the invention relates to a simplified needle-felting process wherein loose fiber is accreted into a thick fibrous structure by repeatedly driving a multitude of felting needles into the loose fiber, the felting needles penetrating all the way through the fibrous material at the beginning of the process, and penetrating only part way through the fibrous material at the end of the process. The processes according to the invention eliminate one or more intermediate steps of forming coherent fibrous layers that were previously thought necessary in the prior art in order to form a thick fibrous structure.
申请公布号
US6105223(A)
申请公布日期
2000.08.22
申请号
US19970846731
申请日期
1997.04.30
申请人
THE B. F. GOODRICH COMPANY
发明人
BROWN, JERRY;FILLMORE, WADE W.;KILLIAN, JR., JAY H.;LIEW, RONNIE SZE-HENG;LUNDBLAD, WAYNE;MORRIS, JR., EDWARD LEE