[직/편성물] Assessment of Reflectance and Color Differences of Wool Fabrics after Abrasion 출판일 : 2005.08.01 저자 : Halil Rifat Alpay, Behcet Becerir, Mine Akgun 서지사항 : Textile Research Journal, Volmue 75, No.8(2005), 607페이지 등록일 : 2012.01.25 I 조회수 : 661 작성자 : admin |
This paper focuses on the assessment of color differences and percentage reflectance
changes that occurred in dyed wool fabrics after different cycles of abrasion for different
constructional parameters of the fabric. Twelve wool fabrics having different constructional
parameters were used. The fabrics differed from each other by their weft yarn counts, weft
densities, warp densities and the fabric weaves. The warp yarn type and count and the
warp yarn twist were the same for all fabrics. The dyeing of the fabric samples were
performed by using a commercial 1: 2 metal complex dye (Mix Dye). Four different abrasion
levels (2500, 5000, 7500 and 10 000) were used. The percentage reflectance values of the
abraded fabrics were measured and color differences between the original (control fabric,
dyed but not abraded) and abraded fabrics were calculated. Percentage reflectance values
and color difference values are presented in figures for changing fabric constructional
properties. The percentage reflectance values and color difference values were higher for
the wool fabrics having thicker siro-spun weft yarns and having higher weft and warp
densities. The effect of increasing abrasion cycles on percentage reflectance values and
on color differences was more visible for plain woven wool fabrics. Photographs of the
abraded fabrics are presented to show the surface of the wool fabrics after 10 000 abrasion
cycles. It was observed that the yarn breakages occurred on the fabric surface because of
the lower tenacity of the wool fibers made the fabric surface smoother as a result of the siro-
spun yarn structure. It is concluded that the broken ends of the fibers played an important
role in surface reflectance beyond a certain abrasion level which was observed to be 7500
cycles.
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