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Abstract:
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The leading type of yarn used in the production of warp knit automotive fabrics is
polyester textured continuous filament, derived from partially oriented yarn (POY) and
warp drawn POY. Advances in fiber spinning technology have introduced new filament
yam products in recent years. These products are the results of high-speed spinning that
unlike POY products do not require drawing. Filament spinning speeds have increased
from 1,000 meters per minute to greater than 6,000 meters per minute. High-speed spun
filaments have different morphology than conventional POY derived filaments. New
generation (high-speed spun) filaments have higher elongation, different shrinkage
properties, and different dye uptake than conventional yarns. Therefore, fabric production
techniques may need to be different.
New generation filaments have not been studied for suitability in automotive end
uses. New generation yarns are important to automotive fabric producers in order to
reduce cost and to provide a new raw material option. This research determined the
effects of filament type, stitch type, and fabric preparation on fabric properties of DNB
Raschel velour automotive fabric.
This research provides an understanding of the filament morphology and
properties of POY derived yarn, undrawn POY, and two types of high-speed spun
filaments. This research determined the similarities and differences between fabrics that
were produced with different filament types, stitch types and fabric preparation
techniques. The similarities and differences between the fabrics were explained according
to morphological and physical property differences between filament types.
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