ceramic decals screen printing
currently, ceramics containers and spray painted decoration has been replaced by color decal transfer. however, some workers on the screen ceramic decal printing technology not quite understand, this article will focus on technical issues in this area, for a profile in the hope of better ideas into effect.
>> ceramics beautiful arts center 1, ceramic decals scope and characteristics of paper use 1), mainly used in ceramic ceramic decal china pan decorative patterns and colors to replace the old days of hand-painted and spray painted process. 2), ceramic decal printing resolution up to 40-50 lines / cm. 3), ceramic decal paper inks logo posted on the ceramics, the need to 700-800 , or fired at 1100-1350 to adhere firmly, with the ceramic color varieties of hair color agent determined. 4), ceramic is the ceramic ink decal carrier, into ceramic glaze and ceramic underglaze decals decal paper, wrapping paper because of the composition and the type of distinction. 5), as ceramic ink opacity, transparency is poor, so the current theory can not use primary colors for printing, network printing side by side with non-overlay network special color ink printing. 6), enamel decal printing inks for the high-temperature solvent of ink; underglaze decal printing inks for the high-temperature water-based ink. second, the classification of ceramic decals decals and glaze under the order and sintering in different ways, into ceramic glaze ceramic underglaze decal decal and .
1), ceramic glaze stickers : is first glazed ceramic ware, after the decal, and then sintered. about patterns of ceramic ink printing in the pvb ( polyethylene alcohol butyral) film surface, pvb film is coated with perchlorethylene adhesive (108g /?) the end of paper coating two pvb solution (total thickness of 0.01-0.011mm) to get. use, the first end of paper and printing a pattern of pvb membrane separation, and then dip alcohol after pvb film posted on the pottery glaze table surface, through the 780-830 sintering, pvb film carbonized decomposition patterns in pottery glaze on the attachment to complete the transfer of color ceramics. 2), ceramic underglaze decal : is the first in the ceramics embryos decal, and then coated with a layer of transparent enamel sintering at 1350 under color pottery.
will set flower design printed on paper, this set of paper is tissue paper flowers and 180g /? wood pulp paper for the time being be mounted together, and mounted together with a bonding liquid and liquid filling the general solution is made by a certain percentage and concentration , mounted timely must use special co-mounted liquid. patterns of the carrier for the tissue paper, also known as parchment. use, will be posted on the ceramic flower paper carrier embryos, unfold the mount, the coated layer of transparent enamel, making porcelain enamel layer covers the entire embryo, and then ceramic sintered at 1350 embryo into a colorful ceramics. 3, ceramic ink composition 1), porcelain enamel ink composition. connection material: solid resin and organic solvent soluble resin, or film-forming properties. hair color agent: department of metallic oxides, decided to color hue after firing. additives : increase the brightness of pigment, so color decorating porcelain mojing fusion burn and ceramic glaze. generally lead glass body, low melting point of boron. 2), underglaze porcelain ink ceramic ink composition and the same glaze, but the binders are water-soluble material. 4, ceramic ink screen and the system used plate material 1, with yellow and other colors nylon screen. 2, ordinary products with 270-320 mesh / inch screen, flower with 220-250 mesh / inch screen production relief effect, products with small text 340-400 mesh / inch screen. 3, color network printing minimum screen lines: head = 1:3, but must consider the thickness of ceramic ink particles, over the net convenient and does not produce a combination of factors such as tortoises. 4, color network printing phenomenon of ghost lines can change the screen mesh, mesh screen angles or stretching point, network types and network arrangement and other methods to eliminate or reduce.
5, glaze ceramic screen ink used for the solvent screen, with oil sensitive adhesive or capillary film, or gender sensitive plastic water and oil plate ; ink underglaze porcelain screen used screen for the water resistance, water or water-oil rubber sexy light colored plastic version of gender sensitive. 5, ceramic decals precautions 1, in the workplace temperature maintained at 22-26 , relative humidity of 65-70% is appropriate. 2, chromatography underglaze printing on paper with the decals, silk prepress should place the paper first enter the screen a few days (depending on weather condition), to be printed after the expansion and stability. 3, the decals on the chromatography paper, each printed with color after drying, should be hanging up some time until the water content of the paper to resume only after the second printing to the next color. 4, screen printing ceramic ink poor miscibility, mixed properly, will produce the chemical reaction sintering, so that the color variation or popcorn and other illnesses, so each should be mixed use and good porcelain ink. can see from the above, different processes used in ceramic decoration ceramic decal different, and different ceramic decal printing process and omental version and the ink used is also different.
therefore, when ceramic decal printing, be sure to clarify the specific processes and decals ceramic decorative paper printing process and the use of materials required in order to reduce waste, reduce costs and improve efficiency.
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