Carbon powder group and production method thereof

Abstract

The invention provides a carbon powder group. The carbon powder group at least comprises four types of independent ceramic carbon powder, namely black ceramic carbon powder, yellow ceramic carbon powder, green ceramic carbon powder and red ceramic carbon powder, wherein each of the black ceramic carbon powder, the yellow ceramic carbon powder and the green ceramic carbon powder comprises an inorganic ceramic pigment; the grain diameter of each inorganic ceramic pigment is less than 1 micron; the granularities of the black ceramic carbon powder, the yellow ceramic carbon powder and the green ceramic carbon powder are 7-12 microns; the red ceramic carbon powder comprises covered red pigment powder; the grain diameter of the covered red pigment powder is 2-8 microns; and the granularity of the red ceramic carbon powder is 10-20 microns. The carbon powder group is very suitable for printing high-pixel full-color pictures; the pictures have bright colors, clear layers and vivid images; and the printing effect of the carbon powder group is better than the printing effect of multi-color carbon powder in the prior art.

Description

technical field [0001] The invention relates to a four-color carbon powder for color pattern imaging of a laser printer, in particular to a four-color ceramic carbon powder modified by inorganic ceramic pigments and package red. Background technique [0002] In the ceramic industry, the patterns on the surface of ceramics are generally realized by hand drawing or screen printing. However, hand drawing is slow, inefficient, and limited by the skill of the painter. Screen printing can achieve mass production and greatly improve production efficiency, but screen printing is also quite cumbersome for color patterns. For example, color separation is required for plate making, and then multiple color plates are made, and then different colors are required one by one. Printed onto the ceramic surface, followed by sintering separately, and finally get the color pattern. Although the effect of screen printing is acceptable for general patterns, but for portrait photos, it is found t...

AI Technical Summary

Problems solved by technology

However, due to the particularity of ceramic pigments, such as some pigments will react and change color when sintered at high temperature, generally the magenta color produced is light, and when this toner is used for portrait printing, it will cause the picture to fade

In addition, the price of foreign ceramic toner is quite expensive, which limits the use of ceramic toner