Photoluminescent Printed Fabrics:
Design and Development of Home
Fashion Products to Aid Nighttime
Navigation
R. Sharma, N. Bairagi, and M. Gupta
1 Introduction
Photo-luminescent (PL) pigments are rare earth metals that absorb light and emit it
slowly as a pale blue/bluish-green light over 6–8 h after initial excitation from an
external light source. They may be incorporated in the textile as filaments, coating,
tapes or vinyl stickers [1–5]. In our previous paper, the effect of particle size and
concentration of the PL pigments on textiles by print method on the intensity of
luminance or emitted light was discussed [6]-. This paper focuses on the effects of
PL pigments on various textiles with respect to morphology and its use in various
end uses as home fashion products, especially in the area of elderly care.
Light is a powerful modulator of cognition through its long-term effects on circadian rhythm and has direct effects on brain function [7]. Many sleep specialists
suggest that widespread exposure to blue light is a major contributor to insomnia
in general [8]. In the elderly, insomnia and cognitive impairment are major factors
for fall and it has far-reaching consequences for the independence of the elderly.
Those affected become increasingly insecure about moving around. Among older
adults, the most common reasons [9] for accidentally falling or slipping include wet
or recently polished floors, such as in a bathroom, dim light, rugs or carpets that are
not properly secured, reaching for storage areas, such as cupboards and stairs. There
R. Sharma (B)
Department of Textile Design, National Institute of Fashion Technology, HSR Layout, Bengaluru
560102, India
e-mail: richa.sharma@nift.ac.in
N. Bairagi
Department of Knitwear Design, National Institute of Fashion Technology, HSR Layout,
Bengaluru 560102, India
M. Gupta
Nanophotonics Lab, Department of Physics, Indian Institute of Technology, New Delhi 110016,
India
© Springer Nature Singapore Pte Ltd. 2021
A. Majumdar et al. (eds.), Functional Textiles and Clothing 2020,
https://doi.org/10.1007/978-981-15-9376-5_8
87
Design and Development of Home
Fashion Products to Aid Nighttime
Navigation
R. Sharma, N. Bairagi, and M. Gupta
1 Introduction
Photo-luminescent (PL) pigments are rare earth metals that absorb light and emit it
slowly as a pale blue/bluish-green light over 6–8 h after initial excitation from an
external light source. They may be incorporated in the textile as filaments, coating,
tapes or vinyl stickers [1–5]. In our previous paper, the effect of particle size and
concentration of the PL pigments on textiles by print method on the intensity of
luminance or emitted light was discussed [6]-. This paper focuses on the effects of
PL pigments on various textiles with respect to morphology and its use in various
end uses as home fashion products, especially in the area of elderly care.
Light is a powerful modulator of cognition through its long-term effects on circadian rhythm and has direct effects on brain function [7]. Many sleep specialists
suggest that widespread exposure to blue light is a major contributor to insomnia
in general [8]. In the elderly, insomnia and cognitive impairment are major factors
for fall and it has far-reaching consequences for the independence of the elderly.
Those affected become increasingly insecure about moving around. Among older
adults, the most common reasons [9] for accidentally falling or slipping include wet
or recently polished floors, such as in a bathroom, dim light, rugs or carpets that are
not properly secured, reaching for storage areas, such as cupboards and stairs. There
R. Sharma (B)
Department of Textile Design, National Institute of Fashion Technology, HSR Layout, Bengaluru
560102, India
e-mail: richa.sharma@nift.ac.in
N. Bairagi
Department of Knitwear Design, National Institute of Fashion Technology, HSR Layout,
Bengaluru 560102, India
M. Gupta
Nanophotonics Lab, Department of Physics, Indian Institute of Technology, New Delhi 110016,
India
© Springer Nature Singapore Pte Ltd. 2021
A. Majumdar et al. (eds.), Functional Textiles and Clothing 2020,
https://doi.org/10.1007/978-981-15-9376-5_8
87