Patent ID: 8246785

Claim:
A system for producing a fibrous mat, web and/or blanket comprising: a) a fiber generator, b) a moving, permeable collecting belt for collecting a web of the fibers, c) an oven for removing any water or solvent from the fibrous web and d) a de-dusting agent(s) application system comprising: i) one or more atomizers or generators for producing a stream of liquid droplets of one or more de-dusting agents, the majority of the liquid droplets having a diameter of less than about 2 microns and a mean diameter of less than about 900 nanometers, into an atomization chamber containing a moving air stream to form an air suspension of said liquid droplets, ii) an atomization chamber and iii) one or more fans for passing said air suspension through the dry fibrous mat, web and/or blanket to deposit said liquid droplets onto the surfaces of fibers in the fibrous mat, web and/or blanket to deposit the desired amount of de-dusting agent(s) in the fibrous mat, web and/or blanket.