Preparation method for ceramic with bright-colored image

Abstract

The invention provides a preparation method for ceramic with a bright-colored image. The preparation method comprises the following steps: 1, image treatment: selecting at least one monochromatic color from the image so as to prepare a silkscreen printing plate; 2, blank preparation; 3, pattern printing on the surface of the obtained blank in an ink-jet manner; 4, printing of the selected color on the surface of the blank in a silk-screen printing manner; 5, firing in a kiln so that a semi-finished product is obtained; 6, coating of a surface glaze on the semi-finished product; and 7, firing in the kiln so that the ceramic with the bright-colored image is obtained. Through adoption of a scheme of pretreatment of the image, the ceramic product with the bright-colored image is obtained by combining the advantages of capability of manufacturing a complicated image due to bright color in silk-screen printing and high definition in ink-jet printing. Meanwhile, the production efficiency is high; equipment cost is low; the prepared ceramic has bright color; and colors achieve natural transition.

Description

technical field [0001] The invention relates to the field of ceramic production, in particular to a method for preparing ceramics with vivid images. Background technique [0002] The patterns on the surface of traditional ceramics are mostly drawn by hand, and the colors are bright and beautiful, which are loved by consumers. However, traditional ceramics have high requirements on the painters. When the pattern is complicated, the production efficiency is low, the scrap rate is high, and the labor intensity is high. [0003] After technological development, a ceramic screen printing process has emerged, such as the Chinese patent document CN104924789A, which records a ceramic screen printing process for environmental protection, using a special printing colorant, covering the screen on the white embryo, and using a squeegee Uniform extrusion and smearing make the color material permeate through the pattern on the screen, remove the screen, the color material solidifies on t...

AI Technical Summary

Problems solved by technology

However, the problem with the inkjet process is that in order to ensure the accuracy of inkjet, the color and auxiliary material particles usually need to be very small in size, and the smaller particle size is very easy to change color due to oxidation during the firing process, resulting in bright colors. The degree, that is, the color saturation cannot be guaranteed, and the color is obscure, which affects the appearance effect

Moreover, the inkjet process is prone to more defects, such as horizontal lines in large color blocks, broken lines caused by lack of ink, uneven transition colors, etc., and it is difficult to overcome them through technical means. Only the nozzle can be replaced, resulting in cost rise

[0007] There are also decal printing process and roller printing process, among which the decal printing process is similar to the thermal transfer process, usually only manual operation, low efficiency

However, gravure printing is mostly used in cylinder printing, the cost of plate making is very expensive, the cost of equipment is also very high, and the operation is complicated

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