I believe that many people used highlighters in their school days to mark the key points in the book. The highlighter pen is a new pen used for marking in recent years. It uses thicker and lighter ink to cover the key parts to make marks. After the mark is made, the text is not obscured at a glance. Fluorescent pens have a fluorescent agent that emits a fluorescent effect when exposed to ultraviolet light (sunlight, fluorescent, and mercury lamps), emitting white light, which makes the color look glaring and fluorescent. So, can pregnant women use a highlighter? Let me explain the principle of the highlighter to everyone!
The most important function of the highlighter is: a document marked with a highlighter. When copying, you can't see that it has been marked!
The principle of its key UV fluorescent ink is to add a visible fluorescent complex with UV excitation to the ink. Through the absorbed light energy, the energy level transition of the atom is generated, and then the additional energy absorbed is released. The anti-counterfeiting feature is to emit red, yellow, green, and blue (400 nm to 800 nm) visible light under ultraviolet light (200 nm to 400 nm). The ink is colored and colorless, and has long wave (365nm) and short wave (254nm). The fluorescent pigment is an organic complex, finely ground, and has high luminosity, usually colorless or light white, in ultraviolet light. (200nm～
Under 400 nm irradiation, visible light of various colors (400 nm to 800 nm) is exhibited. According to the wavelength of the excitation light source, it can be divided into short-wave ultraviolet excitation phosphor (excitation wavelength is 254nm) and long-wave ultraviolet excitation pigment (excitation wavelength is 365nm).
So, can pregnant women use a highlighter? In this case, it is recommended that you use the highlighter pen for writing. If it is light, don't use it. It is not good for the fetus. For the baby's health, use another pen!
Through the introduction of the principle of the above highlighter pen, do you know that pregnant women can use the highlighter? I hope I can help you!
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