Ems Inventa Ag

Albert Blum

Werner Stibal

A method of spinning filaments from a melt which comprises flowing said melt through openings in a nozzle plate to form a stream of said filaments, directing a coolant radially outwardly from the center of said stream through a porous wall of a dispersing head provided with a downstream baffle adjusted to partially reduce the inside pressures of the coolant adjacent to the baffle to a value lower than the outside pressure, the resistance of said coolant caused by the wall porosity satisfying the relationship

Apparatus and method for cooling and conditioning melt-spun material

An apparatus for spinning filaments from a melt has a nozzle plate with a plurality of passages through which the melt flows to form a stream of filaments, a downstream dispersing head in the stream in the form of a cylinder with its axis parallel to the stream of filaments and having an upstream end and a downstream end, a coolant source connected to the dispersing head having a porous wall parallel to the filament stream whereby coolant passes through the wall and impinges on the filaments and a baffle in the dispersing head to reduce the coolant pressure adjacent to the baffle, a resistance to the coolant flow satisfying a specific formula which avoids the prior art problems.

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Domat/Ems, Switzerland

Albert Blum