The principle and flow of screen printing on ceramic decals

Ceramic decals Screen printing is a category of screen printing. Its basic principle is: After the plate is made, the part of the pattern on the screen is permeable, and the non-graphic part is non-permeable, and it is attached to the screen cloth. At the time of printing, the squeegee makes the screen contact with the paper, and the ink is immediately printed on the paper through the mesh of the pattern portion to complete one color printing.

The principle of superposition of ceramic screen printing and other kinds of screen printing and color packaging printing is different.

The general color printing is produced by three primary colors of overprinting, and the ceramic decal-specific pigment is an oil-like powdery organic pigment composed of metal oxides, which has the characteristics of dullness after printing, non-discoloration of the color stack, and discoloration after grilling. Therefore, ceramic decal paper screen printing uses a hierarchical printing method. According to the requirements of the manuscript, more or more than a dozen screen printing plates must be produced to meet the original requirements.

The process flow of ceramic decal paper screen printing is generally as follows: First, according to the user's draft or self-creative design, the color separation of the photographs should be based on the characteristics that ceramic pigments are not discolored. In general, the main red, blue, and green colors are separated, red It should be divided into three times (light, medium, and deep), blue and green in second (light, dark), and finally in black or gray lines. (The desktop system has been used for design and production. The quality and progress have been greatly improved.) .

After the good lustration has been checked and the requirements are met, a positive-working small piece (single-patch) is produced, and the proofing is done manually with a small version of the printing plate. After the barbecue, the sample is adjusted in all aspects until it meets the requirements, and the porcelain factory is burned by the test, and the user approves and orders. After mass production on the machine.

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