Patent ID: 7294235
Filing Date: 2007-11-13
Classification: D21G

Abstract:
1. A method for controlling the moisture of a web comprising: (a.) providing an application device; (b.) moving the web relative to the application device so as to define at least one cooling gap therebetween; (c.) moving cooling air through the at least one cooling gap and across the moving web to cool the moving web; and (d.) applying steam to the cooled moving web to increase the moisture content of the moving web; and wherein the application device comprises a vacuum source and a housing with a cooling chamber, and wherein the step of moving cooling air comprises using the vacuum source to draw cooling air through the at least one cooling gap and into the cooling chamber; wherein the web is comprised of paper and the method is performed in a supercalendering process; and wherein the application device further comprises a steam chamber and wherein moving the web relative to the application device further defines at least one steam gap therebetween, and wherein the step of applying steam comprises delivering steam into the at least one steam gap via the steam chamber.