The principle of the highlighter pen is to absorb the energy of the light and generate an energy level transition of the atom, and then release the extra energy absorbed. Some fluorescent agents are added to the highlighter. Some fluorescent substances are toxic, have potential carcinogenic ingredients, are harmful to the human body for long-term use, and are inexpensive. In order to reduce costs, some small workshops use toxic fluorescent agents as raw materials for highlighters. In addition, because the highlighter contains a large amount of fluorescent agents, long-term use will also seriously affect the child's vision.
TONGLU KINGSON STATIONERY CO.,LTD
Add: No.53-58,Dongmen Rd(N),Fenshui Town,Tonglu County,Hangzhou city.