Improved drying for patterned paper webs

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 11/00 (2006.01)

Patent

CA 2271640

Conventional papermaking practices fail to provide methods for making a soft, strong, and absorbent tissue paper which can be dried efficiently and at reduced expense. The present invention provides a method of forming a paper web that provides a web support apparatus having a first web contacting surface and a second web contacting and patterning surface wherein the difference in elevation between the first and second web contacting surfaces is less than the thickness of the web, transferring the web from a foraminous forming member to the web support apparatus, wherein parts of a first face of the transferred web are supported on both the first web contacting surface and the second web contacting and patterning surfaces of the web support apparatus and transferring the web from the web support apparatus to the heated drying surface, in such a way that the second face of the web remains substantially smooth and macroscopically monoplanar and is positioned against the heated drying surface.

L'invention concerne une bande continue de papier et un procédé de fabrication de ladite bande. Dans l'un des modes de réalisation, la bande continue de papier comprend une zone continue relativement plus mince et une pluralité de zones distinctes relativement plus épaisses. Ces zones relativement plus épaisses sont disposées dans le plan de la zone relativement plus mince. La bande de papier peut présenter une face à motifs et une face relativement lisse. Les structures de papier peuvent être séchées relativement rapidement et efficacement, et présenter un pouvoir absorbant et une masse volumique apparente améliorés, tout en ayant une face relativement lisse.

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