Method of making a Z-media having flute closures

摘要

A single facer media is provided according to the invention. The single facer media includes a fluted sheet attached to a facing sheet and having a first end and a second end so that when the single facer media is formed into a media pack, the first end or the second end forms a media pack first face, and the other of the first end or the second end forms a media pack second face. Adhesive is provided between the fluted sheet and the facing sheet at the first end or the second end, and wherein the fluted sheet and the facing sheet are pushed together and adhered together at the location of the adhesive to provide a seal between the fluted sheet and the facing sheet. At least 25% of the flutes of the fluted sheet comprise at least one ridge extending along at least 50% of the flute length between adjacent peaks. Filtration media packs, filter elements, and methods for forming a single facer media are provided.

主权项

1. A method for forming a single facer media comprising:
(a) adhering a fluted sheet to a facing sheet by application of adhesive between the fluted sheet and the facing sheet; and (b) pushing the fluted sheet toward the facing sheet at the location of the adhesive to form an adhesive seal, wherein said pushing comprises applying a series of rolls to the fluted sheet and the facing sheet, wherein each roll in the series of rolls comprises a surface area that contacts the fluted sheet to increasingly flatten the fluted sheet against the facing sheet at the location of the adhesive, and wherein the method provides the fluted sheet flattened against the facing sheet at the location of the adhesive without a step of darting the fluted sheet.