Sheet material and method and apparatus for drying therefor

Details Sheet material and method and apparatus for drying therefor Sheet material and method and apparatus for drying therefor

D - Textiles, Paper

21

F

D21F 5/04 (2006.01) D21F 5/08 (2006.01) D21F 5/18 (2006.01) F26B 13/08 (2006.01) F26B 13/10 (2006.01) F26B 13/14 (2006.01)

Patent

CA 2390149

A sheet material, a production method therefor and a drying apparatus is provided wherein a heating gas comprising mainly superheated steam is blown directly to reach the sheet internal water content via a permeable belt for restricting free shrinkage of the sheet, to give instantaneous evaporation (pressure flow) and form a porous sheet. A wet sheet 35 is clamped between an externally heated rotor 1 having heated gas blowing ports 19 for blowing heated gas from an outer peripheral direction, and a permeable endless fabric belt 36 which moves in synchronous with the rotor under a tension capable of restraining dry shrinkage of the sheet material, to thereby give rapid direct moisture evaporation and form a porous sheet.

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