الفهرس 
Chapter (1) : Color and LightOnly 14 pages are availabe for public view
 |  | from | 170 |  |  |
| | | from | 170 | | |
Abstract
Photo-luminescent pigments are rare earth based luminous materials activated by divalent europium. A photo-luminescent pigment emits a bright phosphorous shade on excitation by daylight, incandescent, fluorescent, or ultraviolet light. It exhibits a high initial brightness and a long afterglow. Limited literature is available to guide textile and fashion designers on how these pigments can be used to create novel illuminated surface patterns. Patterns may be created of different intensity of luminescence for different application and products ranging from safety to fashion. Although extensive research projects have explored ways of creating light emitting fabric displays using LEDs, electroluminescent wires, optical fibers, and embedded photo-luminescent pigment in polymer fibers, limited experimental research has focused on the ways of designing a novel illuminated surface pattern using photo-luminescent pigments in textile printing and fashion design .
There is a lack of detailed experimental study on the effect of the pigment concentration, light sources, substrate, and particle size and on the intensity of luminescence by the pigments.
Light is a powerful modulator of cognition through its long term effects on circadian rhythm and direct effects on brain function. Many sleep specialists suggest that this widespread exposure to blue light, long after the sun has set, is a major contributor to the modern epidemic of insomnia .
Therefore, alternative sources of natural nightlight imitating moonlight or starlight, which does not retard the circadian cycle of humans, may be an area to be explored using a photo-luminescent printed textiles.
Customers are immensely conscious about their child’s cloth while buying. Safety and comfort are considered as top priority for Children’s clothing. Fabric and design on the physical comfort of children’s cloth.
Because of delicate skin of children reacts to certain fabrics which make them less comfortable to wear.
Also children’s movements should not be hampered and action should be encouraged. Clothes should give a child in a sense of security and comfort. Discomfort dresses may make them annoying and different from others.
Major requirements and consideration in selecting design in children’s clothing should be given to, relax, self-help features, appearance, and growth features. Childs are categorized by different age and all ages requirements is different. Customer’s priority and satisfaction should need to consider as a base line standard of performance and excellence for any business organization.
And through that, the problem of research can be identified and represented in How to benefit from Photo-luminescent Dyes and use in the field of printing clothing products as a source for enriching aesthetic and functional values.