Title of article :
Reflectance Properties of Brown Mass Dyed Poly(ethylene terephthalate) Filament Yarns in the Visible-near Infrared Region
Author/Authors :
Emami Moharam, Z Textile Engineering Department - Yazd University, Yazd, Iran , Tavanaie, M. A Textile Engineering Department - Yazd University, Yazd, Iran , Khajeh Mehrizi, M Textile Engineering Department - Yazd University, Yazd, Iran
Abstract :
Near infrared and visible reflectance properties of brown mass dyed
poly(ethylene terephthalate) melt spun filament yarns were studied
compared to natural brown hue of desert areas. Pigment Red 177,
Pigment Green 7 and carbon black particles were used in this investigation.
Near-infrared reflectance, mechanical and thermal properties as well as
crystallinity of the camouflage poly(ethylene terephthalate) mass dyed filament
yarns were measured. The obtained result indicated that by using an optimal
content of the mentioned colored pigments and carbon black particles during the
melt spinning operation could be achieved to desirable near infrared reflectance
properties in the poly(ethylene terephthalate) drawn filament yarns. Also,
mechanical properties of the samples were acceptable evaluated. The samples
with the highest concentration of pigments had the highest percentage of
crystallinity. XRD results indicated that 2 sample with the highest concentration
of pigments and additives among other samples had the greatest distance
between the crystalline plates. Maximum space between crystal layers is about
4.01-4.08 Å. Also, microstructural uniformity of the sample was confirmed by a
low variation of samples. Prog. Color Colorants Coat. 13 (2020), 93-104©
Institute for Color Science and Technology.
Keywords :
Near infrared , Reflectance properties , Poly(ethylene terephthalate)- filament yarn , Melt spinning , Carbon black
Journal title :
Astroparticle Physics
