Three-Dimensional Effects Using Yarns Containing Spandex. ElSyaed ElNashar, Tamer Hamouda, and Abdel-Fattah M. Seyam College of Textiles, North Carolina State University Raleigh, NC, USA. Background. Weaving Machine. Weave Structures.
ElSyaed ElNashar, Tamer Hamouda, and Abdel-Fattah M. Seyam
College of Textiles, North Carolina State University
Raleigh, NC, USA
Spandex production accounts for 0.9% of the world natural and manufactured fiber production. It is used in sweaters, tops, trousers, formal suits, jackets, sleeveless dresses, vests and knickers, shaped garments, hosiery, swimwear, sportswear, and bodies. While the increase in Spandex production and markets is significant, little scientific research has been published. This research goal is to explore the potential of using filling yarns containing Spandex to produce 3-D effects. The 3D effects are developed through woven fabric design with varying tightness. Variation in tightness cause differential shrinkage upon removing the fabric from the loom and/or washing while in relaxed state. Loose weave structure causes more shrinkage as compared to tight weaves. The differential shrinkage causes parts of the design to be raised in the direction perpendicular to the fabric plane.
2X2 Twill (Double Cloth)
8-H Sateen (Double Cloth)
7-H Sateen (Double Cloth
Plain Weave (Double Cloth)
12-H Sateen (Double Cloth)
14-H sateen (Double Cloth)
Results and Discussions
*40 Denier Lycra® Spandex of Invista was used as core
Arrangement of weft yarns was altered to provide different 3D effects.
Using yarns containing Spandex combined with variation in fabric tightness through utilizing different weaves led to producing 3D fancy effects upon relaxation of fabrics (washing under low or no tension) without the need for heat, chemical treatment, or mechanical devices such as those used to produce crinkle effects.
This work is funded by Lubrizol Advanced Materials, Inc., State of North Carolina, and Egyptian Government. We appreciate Unifi, Inc., Madison, NC, USA for the formation of single covered yarns.