Fluorescent complex containing carboxylic acid type high polymer and rare earth, preparation method of fluorescent complex, fluorescent chemical carbon powder and preparation method of fluorescent chemical carbon powder

Abstract

The invention discloses a fluorescent complex containing carboxylic acid type high polymer and rare earth, a preparation method of the fluorescent complex, fluorescent chemical carbon powder and a preparation method of the fluorescent chemical carbon powder to solve the problems of poor compatibility between a fluorescent substance and carbon powder resin, poor fixation and narrow application range in the preparation of the existing fluorescent chemical carbon powder. The invention provides the fluorescent complex containing the carboxylic acid type high polymer and rare earth, which is prepared from the raw materials of rare earth ions, a high polymer resin solution and an organic fluorescent ligand by virtue of reaction. The invention also provides the fluorescent chemical carbon powder which is produced by virtue of agglutination of an emulsion of the fluorescent complex containing the carboxylic acid type high polymer and rare earth and a composite emulsion containing wax cation polymer. The preparation method of the fluorescent complex is simple in process, low in production cost and short in production cycle, and the produced fluorescent chemical carbon powder is good in dispersity, compatibility and fixing property, clear and stable in fluorescent display and good in durability.

Description

technical field [0001] The invention relates to the field of toner manufacturing, in particular to a carboxylic acid-containing polymer rare earth fluorescent complex and a preparation method thereof, fluorescent chemical carbon powder and a preparation method thereof. Background technique [0002] With the rapid development of science and technology, office automation and information level have been greatly improved, laser printers and copiers have become necessary tools for computer terminals. The printer automatically prints important bills, vouchers, signatures and seals of archives, etc., which greatly improves the work efficiency of traditional manual operations. In order to prevent imitation and counterfeiting of important printed documents, printing toner anti-counterfeiting technology came into being. Fluorescent anti-counterfeiting toner is made by adding fluorescent compounds to the toner. Under ordinary light, the fluorescent chemical toner becomes colorless, tr...

AI Technical Summary

Problems solved by technology

The process of the above method is simple, but in the selection of phosphors, inorganic phosphors and small molecule organic fluorescent complexes are mostly used. This series of phosphors are mostly complexed with polyaromatic ring complexes and rare earth ions, and their polarity is similar to that of carbon powder resins. The difference is large, the compatibility between the fluorescent substance and the carbon powder resin is poor, and it is easy to cause uneven dispersion of the fluorescent substance in the carbon powder resin. Therefore, the dispersion of the fluorescent powder in the carbon powder is very high. In addition, inorganic and small molecule fluorescent The thermal performance of the complex is much higher than that of toner resin, and the prepared fluorescent chemical toner has poor fixation and narrow application range. Therefore, this kind of phosphor is limited in low temperature and high speed printers.

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