Method for producing multiple fibre strips in parallel and apparatus for executing said method

US8769785B2 · kind B2 · utility

Assignee

• RHODIA ACETOW GMBH · DE

Inventors

• Thomas Krumrey · Teningen, DE
• Dieter Ruf · Waldkirch, DE
• Martin Moser · Speyer, DE

Key dates

• Filing date: Feb 18, 2010
• Grant date: Jul 8, 2014
• Expiry date: Mar 17, 2031

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D02G1/12
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to methods for simultaneously producing crimped fiber strips in parallel, in particular filter tow strips, in a crimping machine (KM) having an inlet region (3), a squeezing zone (6) formed between two transport rollers (4, 5), and a compression channel (7), comprising the following steps: a) simultaneously feeding in parallel a plurality of fiber strips (1, 2) via the inlet region (3), wherein the fiber strips are guided separately in the inlet region (3), using a first separating device (31), b) simultaneously transporting and compacting in parallel the fiber strips in the squeezing zone (6) by way of the two transport rollers (4, 5), and c) simultaneously crimping in parallel the fiber strips in the compression channel (7), wherein the fiber strips are guided separately in method step b) by using a second separating device (61) and in method step c) by using a third separating device (71), and wherein the first, second and third separating devices (31, 61, 71) are designed such that the separate guidance in parallel of the fiber strips takes place from the inlet region (3) through the squeezing zone (6) into the compression channel (7) without interruption.…