12-11-2020 дата публикации
Номер: US20200352798A1
Принадлежит:
An apparatus for manufacturing a formed film includes a first forming station configured to receive a polymer web and a second forming station configured to receive the polymer web from the first forming station after the polymer web has been apertured. The first forming station has a first forming structure with a plurality of first openings configured to form a plurality of apertures in the polymer web. The second forming station includes a second forming structure with a plurality of second openings and an overlying pattern configured to form raised areas in the polymer web to create a three-dimensional formed film. 1. An apparatus for manufacturing a formed film , the apparatus comprising:a first forming station configured to receive a polymer web, the first forming station having a first forming structure comprising a plurality of first openings configured to form a plurality of apertures in the polymer web; anda second forming station configured to receive the polymer web from the first forming station after the polymer web has been apertured, the second forming station comprising a second forming structure comprising a plurality of second openings and an overlying pattern configured to form raised areas in the polymer web to create a three-dimensional formed film.240120. The apparatus according to claim 1 , wherein the plurality of first openings are arranged in a to mesh pattern.340. The apparatus according to claim 1 , wherein the plurality of second openings are arranged in a mesh pattern.4. The apparatus according to claim 1 , wherein the overlying pattern configured to form raised areas comprises a spiral pattern. This application is a divisional of U.S. patent application Ser. No. 15/584,968, filed on Mar. 2, 2017, which claims the benefit of priority from U.S. Provisional Patent Application Ser. No. 62/330,589, filed on May 2, 2016, and U.S. Provisional Patent Application Ser. No. 62/369,624, filed Aug. 1, 2016, the entire contents of all of which are ...
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