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1. (WO2011138263) METHOD AND APPARATUS FOR FIBRILLATING SYNTHETIC RIBBONS

Pub. No.:    WO/2011/138263    International Application No.:    PCT/EP2011/056935
Publication Date: 2011. 11. 10 International Filing Date: 2011. 5. 2
IPC: D01D 5/42
B26D 1/28
B26F 1/20
D01G 19/10
Applicants: OERLIKON TEXTILE GMBH & CO. KG
WEINHOLD, Jens
WÖLLNER, Bert
NEUBERT, Marko
HIRSCH, Uwe
Inventors: WEINHOLD, Jens
WÖLLNER, Bert
NEUBERT, Marko
HIRSCH, Uwe
Title: METHOD AND APPARATUS FOR FIBRILLATING SYNTHETIC RIBBONS
Abstract:
The invention relates to a method and apparatus for fibrillating synthetic ribbons in an extrusion process for the production of glass fibres in particular. The extrusion process creates a sheet of ribbons from an extruded foil or a multiplicity of extruded monofils, and stretches them conjointly. The ribbons are led side by side in a parallel arrangement along the circumference of a fibrillating roll with a partial wrap. To produce a pattern of fibrillation irrespective of the thickness of the ribbons and the elasticity of the ribbons, the invention provides that a multiplicity of short partial cuts is made in the ribbons by a plurality of successively engaging rows of blades on the fibrillating roll each having a multiplicity of projecting cutting tips.