Where you are: Home pageYear 2015Issue (110) → Article:
AAA     ENG | POL

Model for Simulating Yarn Unwinding from Packages

Research and development

Authors:

Download... PDF
Full text
Download... PDF
references

Abstract:

Yarn unwinding from packages plays an essential role in many textile processes. The stability of unwinding has a direct influence on the efficiency of the textile processes in general and on the quality of the final products. Calculations based on a theoretical model of unwinding can help us in our pursuit of an optimal design of packages and an optimal unwinding process. We will derive expressions for the time dependence of the angular velocity of the balloon rotation around the package axis, of the unwinding velocity and the winding angle during yarn unwinding from the cylindrical package. We will demonstrate a mathematical model for simulating the unwinding from cylindrical packages. We will show how the winding angle influences the angular velocity and tension oscillations of the yarn during unwinding. Since the centrifugal forces on the yarn in the balloon depend on the angular velocity, this velocity has a large influence on the tension that we wish to reduce.

Tags:

winding angle, apex angle, yarn unwinding, yarn angular velocity, package design, new-generation packages.

Citation:

Praček S, Pušnik N, Simončič B, Forte Tavčer PE. Model for Simulating Yarn Unwinding from Packages. FIBRES & TEXTILES in Eastern Europe 2015; 23, 2(110): 25-32.

Published in issue no 2 (110) / 2015, pages 25–32.

CONTACT:

FIBRES & TEXTILES
in Eastern Europe
ul. Skłodowskiej-Curie 19/27,
90-570 Łódź, Poland
tel. (48-42) 638-03-14
e-mail: infor@ibwch.lodz.pl
ftee@ibwch.lukasiewicz.gov.pl

EDITORIAL OFFICE
ul. Skłodowskiej-Curie 1927, 90-570 Łódź, Poland • tel.  (48-42) 638-03-14 • e-mail: infor@ibwch.lodz.plhttp://www.fibtex.lodz.pl

EDITORIAL DEPARTMENT
Editor-in-Chief Emilia Jaszczurska-Niedźwiedzka, V-ce Editor-in-Chief Marta Cyrczak, Text Editor Geoffrey Large, Assistant Editor Anna Wahl, Typesetting and Printed at Media-Press • Production IBWCh

facebook