Photo-induced color luminescent powder

Abstract

The invention relates to a photo-induced color luminescent powder, which consists of an inner core of a rare earth fluorescent compound and a wrapping layer; the photo-induced color luminescent powder is characterized in that the inner core of the rare earth fluorescent compound is a rare earth luminescent powder emitting white light; the wrapping layer is a color film coating agent containing a colorant; and the rare earth luminescent powder emitting the white light and the color film coating agent are mixed according to the weight ratio of between 1 to 0.9 and 1 to 1.2. As the rare earth fluorescent compound is prepared into the rare earth luminescent powder emitting the white light which does not have main guiding action on the photo-induced color luminescent powder and is only used as a light source of the photo-induced color luminescent powder, the rare earth fluorescent compound is prepared into the white light relatively easily; as the wrapping layer adopts an inorganic material to be toned through an organic toner, the operation is simple; even if deviation occurs, the adjustment is relatively convenient; the processing process in the later stage suffers small interference by other factors; and a final product has good reduction.

Description

technical field [0001] The invention relates to a photochromic luminescent powder. Background technique [0002] As solid fluorescent materials, rare earth fluorescent compounds have high fluorescence intensity, good monochromaticity and long fluorescence lifetime, and are widely used as markers. Patent documents CN 1231760C and CN1304523C respectively disclose that the surface of rare earth fluorescent compounds is wrapped with a polymer film or Inorganic films are used as active functional luminophores for biomaterial detection. Among active functional luminophores, rare earth fluorescent compounds are all monochromatic emitters. [0003] CN1091793C patent document discloses aluminate rare earth luminescent material and its preparation method, wraps 80-99% aluminate luminescent matrix in the wrapping layer, and guides the public to use this aluminate rare earth luminescent material for luminescence In coatings, luminescent ceramic glazes, luminescent plastics and lumines...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to expand the application of rare earth fluorescent compounds to luminescent coatings, luminescent ceramic glazes, luminescent plastics and luminescent rubbers in view of the CN1091793C patent. The existing color difference is generally difficult to adjust, which eventually leads to the fact that the color reproduction in the product is poor. problem, providing a new photochromatic luminescent powder