Textile applications of photochromic dyes. Part 2: Factors affecting the photocoloration of textiles screen-printed with commercial photochromic dyes

Anna F. Little, Robert M. Christie

Research output: Contribution to journalArticle

Abstract

The performance of five commercial photochromic dyes applied by screen printing on textiles was evaluated using a colour measurement methodology which has previously been established and validated. Printing as disperse dyes on polyester gives the strongest photochromic effect when the dye is located near the surface. However, the dyes are applied more effectively using an adaptation of a pigment printing method. Several factors influencing the photochromic properties of the printed textiles were evaluated. The ultraviolet reflecting properties of cotton give a higher level of photocoloration than on polyester. In the dyes studied, the spirooxazines show slightly faster colour development and fade much more rapidly than the naphthopyrans, and the latter show a residual colour after fading. The effect of the ultraviolet irradiation wavelength profile on the photochromic response may be correlated with the ultraviolet absorption spectra of the dyes. © 2010 The Authors. Journal compilation © 2010 Society of Dyers and Colourists.

Original languageEnglish
Pages (from-to)164-170
Number of pages7
JournalColoration Technology
Volume126
Issue number3
DOIs
Publication statusPublished - Jun 2010

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Textiles
Coloring Agents
Polyesters
Color
Printing
Screen printing
Pigments
Cotton
Absorption spectra
Irradiation
Wavelength

Cite this

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Textile applications of photochromic dyes. Part 2 : Factors affecting the photocoloration of textiles screen-printed with commercial photochromic dyes. / Little, Anna F.; Christie, Robert M.

In: Coloration Technology, Vol. 126, No. 3, 06.2010, p. 164-170.

Research output: Contribution to journalArticle

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