TY - JOUR
T1 - Direct coloration of textiles with photochromic dyes. Part 1
T2 - Application of spiroindolinonaphthoxazines as disperse dyes to polyester, nylon and acrylic fabrics
AU - Billah, S. M R
AU - Christie, Robert M.
AU - Shamey, Renzo
PY - 2008/8
Y1 - 2008/8
N2 - 1,3,3-Trimethylspiroindoline-2,3'-3 H-naphth[2,1-b][1,4]oxazine (1a) and 6'-piperidino-1,3,3-trimethylspiroindoline-2,3'-3 H-naphth[2,1-b][1,4]oxazine (1b) were applied as disperse dyes to polyester, nylon and acrylic fabrics. Under optimised dyeing conditions, photochromic fabrics were produced which, on irradiation with ultraviolet or exposure to sunlight, turned blue (1a) or blueish-purple (1b). Dye 1a showed enhanced photochromic colour change performance compared with dye 1b. The photochromic colour build was highest on nylon and lowest on acrylic fabric. The colour change properties and the technical performance (wash fastness and photostability) of the photochromic fabrics were evaluated using specifically adapted colour measurement methods. The data were analysed in terms of variation of lightness, a*, b*, chroma, hue angle and ?E, colour difference before and after exposure, and K/S curves as a function of irradiation time. The fabrics generally showed good wash fastness. Although the colour build-up decreased with exposure to the Xenotest fadeometer, some residual photochromism remained after prolonged exposure. © Journal compilation © 2008 Society of Dyers and Colourists.
AB - 1,3,3-Trimethylspiroindoline-2,3'-3 H-naphth[2,1-b][1,4]oxazine (1a) and 6'-piperidino-1,3,3-trimethylspiroindoline-2,3'-3 H-naphth[2,1-b][1,4]oxazine (1b) were applied as disperse dyes to polyester, nylon and acrylic fabrics. Under optimised dyeing conditions, photochromic fabrics were produced which, on irradiation with ultraviolet or exposure to sunlight, turned blue (1a) or blueish-purple (1b). Dye 1a showed enhanced photochromic colour change performance compared with dye 1b. The photochromic colour build was highest on nylon and lowest on acrylic fabric. The colour change properties and the technical performance (wash fastness and photostability) of the photochromic fabrics were evaluated using specifically adapted colour measurement methods. The data were analysed in terms of variation of lightness, a*, b*, chroma, hue angle and ?E, colour difference before and after exposure, and K/S curves as a function of irradiation time. The fabrics generally showed good wash fastness. Although the colour build-up decreased with exposure to the Xenotest fadeometer, some residual photochromism remained after prolonged exposure. © Journal compilation © 2008 Society of Dyers and Colourists.
UR - http://www.scopus.com/inward/record.url?scp=57249088708&partnerID=8YFLogxK
U2 - 10.1111/j.1478-4408.2008.00145.x
DO - 10.1111/j.1478-4408.2008.00145.x
M3 - Article
SN - 1472-3581
VL - 124
SP - 223
EP - 228
JO - Coloration Technology
JF - Coloration Technology
IS - 4
ER -