Patent ID: 7488365
Filing Date: 2009-02-10
Classification: B01D

Abstract:
1. A corrugated sheet for use in filter media; the corrugated sheet comprising: (a) a first web of media comprising a blend of synthetic and cellulose fibers; said blend comprising no greater than 80% synthetic fibers, by fiber weight, and a remaining amount being cellulose fibers; said first web includes a resin content of at least 15%; (b) said first web having opposite first and second edges; said first web comprising a corrugated shape of alternating peaks and troughs; each of the peaks having a first peak end, a second peak end, and a peak extension between the first peak end and the second peak end; each of the troughs having a first trough end, a second trough end, and a trough extension between the first trough end and the second trough end; the alternating peaks and troughs forming a plurality of spaced flutes; wherein the first web comprises the blend of synthetic and cellulose fibers such that the media is both stretchable and retains the corrugated shape.