Process of finishing an air-laid web and web obtained thereby
AssigneeGeorgia-Pacific France
InventorsBernard Louis Dit Picard, Henri Lesage, Jean-Louis Neveu
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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.
Claims13
Finishing process for an air-laid non-woven web composed of short cellulosic fibers bound by a thermoplastic binder and having a fiber distribution which is less than homogeneous comprising deforming under hot-stress said web between an undeforming hard engraved cylinder and a slave cylinder constructed and arranged to have a hardness between about 60 and about 90 degrees shore hardness D, and wherein said slave cylinder resilient and deformable under pressure applied by said engraving cylinder.
Dependencies are inferred from the claim text.