Method and machine for producing a web of textile fibres held together by a binder

Claim 1

METHOD OF PRODUCING A WEB OF FIVRES HELD TOGETHER BY A BINDER CONSISTING OF THE STEPS OF DEPOSITING AT A FIRST STATION DIRECTLY ON A ROTATING PERFORATED CYLINDRICAL WALL, LOOSE FIBRES CARRIED ALONG IN A STREAM OF AIR DIRECTED THROUGH THE PERFORATED WALL, SPRAYING AT A SECOND STATION FOLLOWING THE FIRST STATION, RELATIVE TO THE DIRECTION OF ROTATION OF THE PERFORATED WALL, A LIQUID BINDER DIRECTLY ONTO THE LAYER OF FIBRES DEPOSITED ON THE PERFORATED WALL WHILE CREATING A HIGH SUCTION ON THE SIDE OF THE WALL OPPOSED TO SAID LAYER IN THE REGION OF THE LAYER RECEIVING THE SPRAYED LIQUID BINDER SO AS TO ACHIEVE SUBSTANTIAL PENETRATION OF THE LIQUID BINDER INTO THE LAYER AND A COMPRESSION OF THE LAYER, DRYING THE LAYER IN A THIRD STATION FOLLOWING THE SECOND STATION, RELATIVE TO SAID DIRECTION OF ROTATION BY FORCING A HOT GASEOUS FLUID DIRECTLY ONTO THE LAYER AND THROUGH THE LATTER AND INTO THE PERFORATED WALL, AND REMOVING, AT A FOURTH STATION FOLLOWING THE THIRD STATION, THE DRIED LAYER FROM THE PERFORATED WALL IN THE FORM OF A WEB OF FIBRES BOUND TOGETHER BY A BINDER.