Writing: writing drawing.

Features: high-quality fluorescent ink, bold overhangs, used to smooth the surface.

Note: this product is volatile, tightly CAP after use, avoiding sunlight shone

What is highlighter?

Is a new marking pen with a thicker, more lightinkcoverage key part to the mark, after you make a mark, and does not cover text at a glance.

Principle of highlighter:

Its key ultraviolet fluorescentinkprinciple is added into the ink is UV-visible fluorescence excited by (complex). By absorbing light energy, the energy levels of the atom jumps, and then release the absorbed the extra energy. Security features are in the ultraviolet light (200nm~400nm) irradiation under red, yellow, green, blue (400nm~800nm) of visible light. This ink-colored and colorless, long wave (365nm) and short wave (254nm) two. fluorescent pigment is organic complexes and grinding refinement, high luminance, usually colorless or pale white, UV (200nm~400nm) radiation, showing a variety of colors of visible light (400nm~800nm). According to the wavelength of the excitation light source, and can be divided into UV-excited fluorescence pigment (excitation wavelength of 254nm) and UVA stimulate pigment (excitation wavelength is 365nm).

Highlighter pen features:

Fluorescent fluorescence, UV it encounters (more sunlight, fluorescent lamps, mercury vapor lamps) will produce the fluorescent effect, issued a white light, through which a fluorescent color.

Now you can hide the colorless highlighter, written without color, after irradiation with UV black lights behind written content can be displayed.

Highlighter is divided into two kinds of water and oil:

Markerand colored pencil is similar, is not toxic, but it is not easy to do. But also well written up on the surface of some items, and fold together the two colors will look dirty.

Oily pens are alcohol-soluble synthetic solvents, easy writing dry, covered well and the price is cheaper

Quality identification of highlighter:

Highlighter is commonly used forpaintingand marking. Selection can be two reports for the translucent paper orcarriagestacked together on top with a highlighter pen to write a few words on a piece of paper, note that heavy setback, and then turned to check quality highlighter above should have no color on the back of a sheet of penetration, the following should be no handwriting on a piece of paper.