Over the last couple of years, with the proliferation of information regarding its benefits and advantages, many more people have become familiar with photoluminescent products, also known as glow in the dark products. As you probably already know, especially if you follow this blog, photoluminescence works when the technology in the material absorbs the energy emanating from ambient light, and then stores that energy. Light emission from the products infused with photoluminescent technology is observed when the energy reduces from a high state to a low state. Photoluminescent pigments, which are the topic of this blog, are a derivative of photoluminescence.
Photoluminescent pigments are now made from a material called Strontium Aluminate, and its chemical identification is SrAl. These Strontium Aluminate materials can be combined with various proprietary inorganics that, when combined, effectively alter the color of the material and increases the intensity of the property that enables the material to glow. Strontium Aluminate also elongates the extent of afterglow of the product infused with photoluminescent technology.
Photoluminesent pigments can also be made from Zinc Sulfide, coupled with copper. However, this photoluminescent pigment makeup is not as popular as using SrAl because the chemical compound only offers a single color when the product glows in the dark. In addition, Zinc Sulfide based pigments are not as popular as Strontium Aluminate based pigments because the materials can become easily damaged when exposed to sunlight. Before these two chemical options were introduced as ways to create photoluminescent pigment, these pigments were previously radioactive. Today, the chemical compounds utilized to make radioactive photoluminescent pigments are no longer used, not ever. Both Strontium Aluminate and Zinc Sulfide are one hundred percent safe to use to make photoluminescent pigments.
Many products can be made form photoluminescent pigments. Because surface coatings can be applied to photoluminescent pigments, the products infused with the technology can be dispersed in water, and any type of aqueous solvent. Photoluminescent pigments can also be added to a variety of plastics. Children’s novelty items and products, such as pajamas and many different kinds of toys can be made from photoluminescent pigments. The most obvious products are the ones talked about on this blog post, including non electrical exit signs, safety signage, emergency markers, and egress equipment. One can also find photoluminescent pigments used to create ink that can be used to write on clothing, vehicles, ceramics, posters and other paper materials, canvas surfaces for artistic affectations, and glass products. Also starting to become quite poplar is the use of photoluminescent pigments on woven products that are either embroidered or sewn with photoluminescent threading.