Abstract: A machine and process for production of wet formed fibrous webs, in which the web is formed from a suspension on a fabric and subjected to a final drying process such as a Yankee dryer roll, while further subjecting the Web to an intermediate drying on a high-heat-transfer roll, with or without hood, before the final drying process. The intermediate dryer roll has a solid, gas-impermeable surface, and a localized heat source directly heats the dryer to a higher temperature than in the final drying process.

Abstract: A machine and process for production of a fibrous web, with a forming section (2) in which the web is formed from a pulp suspension on a fabric (3) and with a final drying unit (4). In at least one further drying step, a rotatable dryer (5) with a hood (6) is located after the forming section (2) and before the final drying unit (4). The additional dryer (5) has a gas-impermeable exterior surface (7) which is directly heated by a combustion unit such a gas or oil fired burner (9).

Abstract: A system, apparatus and method is provided for perforating a web such as a paper tissue or paper toweling into distinct and perforated sheets. The invention provides a laser array capable of providing an incident beam of light upon the surface of the web. The web travels at relatively high speed on a web support mechanism. The web is contacted by the laser light source, which is directed at predetermined locations upon the web to provide a perforation or severing of the web. The employment of a laser in the practice of the invention provides the ability to precisely measure and vary the length of the perforations along the web in a more efficient manner, for a precise cut.

Abstract: A method, system and apparatus is disclosed for drying a wet web quickly and efficiently on the surface of a steam heated drying cylinder in a continuous papermaking process. A steam-heated drying cylinder having an exterior surface is rotated under a drying hood adjacent the exterior surface of the drying cylinder. The hood comprises a drying zone of heated air, with nozzles adapted to supply hot air streams into the drying zone. A wet web is adhered to the drying cylinder and rotated through the drying zone of the hood. Then, hot air streams are directed from the nozzles upon the wet web. A hot air stream is provided from a nozzle at a lead angle that deviates from perpendicular between about 3 and about 30 degrees, in a lead direction towards the downstream end of the web drying process.