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Are glow pigments harmful to humans?

Views: 80     Author: Site Editor     Publish Time: 2021-07-08      Origin: Site

Most of the artificially made luminous balls are made of fluorescent powder (commonly known as glow powder), which is divided into two categories: photoglow storage powder and luminous powder with radioactivity. Photoglow storage luminous powder is phosphor in the environment after natural light, daylight, ultraviolet light, etc., the light energy stored, after the cessation of light irradiation, in the slow release of fluorescence, so at night or in the dark, can still see the luminous, the duration of a few hours to a dozen hours. 

With radioactive luminous powder, is mixed with radioactive substances in the phosphor, the use of radioactive substances constantly emitting rays to excite the phosphor luminous, this type of luminous powder luminous time is very long, according to the decay period, but toxic and harmful and environmental pollution and other applications are small. Glow powder itself is a chemical substance, the current domestic and foreign luminous materials are mainly made of ZnS, SrS and CaS, emitting green and yellow light. Toxic due to various reasons is also possible. Therefore, the purchase to choose a guaranteed, or simply buy LED lights class. Although the use of electricity, but safe.

orange glow pigment (2)

Fluorescent pigment characteristics

Glow pigments differ from traditional pigments not only in color but also in chemistry. Conventional pigments can be organic or inorganic and have very low solubility properties. Their dispersion usually requires strong shearing. Their particles are usually opaque. Daylight-type fluorescent pigments are strictly speaking solid solutions of fluorescent dyes formed in brittle polymer resins. The latter are ground and processed into fine powders to become pigments or colorants. The properties of their solid solution make them often transparent in their application.

Environment and Toxicity

As the international community becomes more environmentally conscious and environmental legislation becomes stricter, many chemical industries, including those that use and produce color products of all kinds, are facing serious challenges. Fortunately, the fluorescent pigment industry is not yet included in this category and, as a rule, fluorescent pigment products do not contain heavy metals such as Cd, Pb, Hg and Cr. Many fluorescent pigment products have also been used in skin irritation and acute toxicity tests. The results show that fluorescent pigments are "essentially non-irritating" and "essentially non-toxic".

orange glow powder (3)

Plastic Coloring

Glow pigments with qualified quality testing are used by masterbatch manufacturers to formulate solid masterbatches or liquid concentrated state and applied to injection molding, transfer molding, blow molding, extrusion, vacuum molding and other plastic processing processes. Generally, fluorescent colorants for plastics are mainly They are used in polyolefin and vinyl plastisols, and less frequently in polystyrene, polyacrylic acid and ABS.

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