A process for treatment of a web by means of impingement by high velocity gaseous fluid is provided. The process constitutes the provision of a web to two separate treatment zones. In the first treatment zone the web is subjected to the imposition of high velocity gaseous fluid substantially tangential...http://www.google.es/patents/US5822835?utm_source=gb-gplus-sharePatente US5822835 - Method and apparatus for web treatment
