Invention Grant
- Patent Title: Process of finishing an air-laid web and web obtained thereby
- Patent Title (中): 完成由此获得的气流成网的网和网的工艺
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Application No.: US09472979Application Date: 1999-12-28
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Publication No.: US06332996B1Publication Date: 2001-12-25
- Inventor: Bernard Louis Dit Picard , Henri Lesage , Jean-Louis Neveu
- Applicant: Bernard Louis Dit Picard , Henri Lesage , Jean-Louis Neveu
- Main IPC: B29C5904
- IPC: B29C5904

Abstract:
The general application of the invention is a finishing process for an air-laid nonwoven web composed of short cellulosic fibers, bound by a thermoplastic binder and having a less than perfect homogeneous fiber distribution. In the invention, the process includes deforming under hot stress the web between an undeforming hard engraved cylinder and a slave cylinder having a hardness between about 60 and 90 degrees shore hardness D. The slave cylinder is resilient and deformable at the pressure applied to it by the engraved cylinder. In particular, the invention applies to the manufacture of webs and of disposable, decorative napkins.
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