The internal bulk of a tissue web can be improved during manufacturing of the basesheet by subjecting the tissue web to differential pressure while supported on a coarse fabric at a consistency of about 30 percent or greater. The differential pressure, such as by applying vacuum suction to the underside...http://www.google.es/patents/US5510001?utm_source=gb-gplus-sharePatente US5510001 - Method for increasing the internal bulk of throughdried tissue
Method for increasing the internal bulk of throughdried tissue
