Invisible fluorescent ink, also known as colorless fluorescent ink. It and the temperature change ink (or thermal ink), daylight color ink, ink penetration, metallic color ink, ink and other anti-alteration, a common component of the current domestic security ink. Which invisible ink technology is mature, stable quality, variety, diversity, etc. for its printing plant accepted by many. In ordinary light under fluorescent ink is colorless transparent colorless or nearly white. Printed on paper or plastic film no significant color. Colorless fluorescent ink only in the following specific conditions in order to reduce the footprint; a pattern or change the text color of the line; 2, fluorescent ink printed on the best sites have background environmental colorless phosphor, help cover the fluorescent ink traces ; 3, you should choose a good absorbent paper quality colorless phosphor, special paper invoices ink absorption performance than bond paper and paper jams. 4, there are special requirements for the invisibility of printed materials can be printed first colorless ink. Characteristics of a substance to stimulate short time, light and twilight time, high brightness. 2, a very stable physical and chemical properties, strong environmental adaptability, extremely long service life. 3, safe and reliable colorless phosphor Which is good, energy saving and environmental protection. 4, a small particle diameter, uniform fineness, particle size distribution. Colorless phosphor manufacturers _ _ Ningguo colorless phosphor pigment provided by Yiwu Pengfei Pengfei pigments Limited. Yiwu Pengfei Pigment Co., Ltd. (www.1688.com/company/ywpfyl.html)(www.4000881771.com) strong, credible, Jinhua in Zhejiang organic pigment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Pengfei innovative ideas will lead you hand into the brilliant pigment and a better future!