Patent · US Active

Method and apparatus for fibrillating synthetic ribbons

US9011134B2 · kind B2 · utility

0Cited by

5References

16Claims

0Family size

Assignee

Oerlikon Textile GmbH & Co. KG · DE

Inventors

Jens Weinhold · Chemnitz, DE
Bert Wöllner · Hohenstein-Ernstthal, DE
Marko Neubert · Lauterecken, DE
Uwe Hirsch · Griesheim, DE

Key dates

Filing date	Oct 30, 2012
Grant date	Apr 21, 2015
Priority date	—
Expiry date	Mar 25, 2033

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01G19/105
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a method and apparatus for fibrillating synthetic ribbons in an extrusion process for the production of, for example, grass fibers. 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.