M. VIKOVA ET AL.
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flexible textile-based sensors construction in the area of
radiation intensity identification. We demonstrate also
differences between photochromic pigments behavior
concerning to spectral sensitivity. First order exponential
functions, which are used in kinetic model calculation, fit
well the kinetics of color change intensity of photochro-
mic pigments. They give good fits to the growth curves
as well as to the relaxation one’s. Based on this result,
the possibility has been demonstrated in principle that
photochromic textiles can be usable for the preparation
of a sensorial system, which allows simple visual as-
sessment of the amount of UV radiation. This system can
be designed for example as a simple rule scale, where for
comparison there is a constant colored part made from
UV stable pigments or dyestuffs. Individual parts of the
constant scale can be judged on having the same color as
the photochromic part at a specific intensity of UV radia-
tion. The observer will be able to estimate the amount of
UV radiation corresponding to a color match between the
photochromic color changeable part and visual stable
part of the textile UV sensor.
5. Acknowledgements
We acknowledge support of the Technical University of
Liberec.
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