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 Wysłany: Czw 0:48, 06 Sty 2011 Temat postu: Direct transfer printing plate and ink pad, the us |
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Direct transfer printing plate and ink pad, the use of
The mesh required 800 to 1000 mesh, and with the Mexican oil mix (should be selected according to the adaptability of different materials Mexican oil.) Diluent used in printing inks are generally quick drying of methyl ethyl ketone, cyclohexanone in the dry, slow dry acetophenone. According to design, text, size and area of applicability of raw materials, printed materials select the appropriate diluent,[link widoczny dla zalogowanych], if the design, text, lines, smaller, thinner for quick-drying can not be used to prevent the blocking version and not on the small print patterns and text. In order to achieve the desired fine patterns and the EP ~, I effect, should be used dry or in slow dry thinner if the design, text, lines coarse, you can use fast-drying thinner. Generally required before the ink even regulate the use of viscosity and concentration,[link widoczny dla zalogowanych], diluted in use, should be mixed slowly while stirring the side, not abrupt manner with plenty of solvent dilution, so as not to adjust the ink is too thin, affecting ink performance and design, Text of the printing resolution. Sometimes the concentration of the viscosity of the right (there raising, drawing), the ink can be added in 2% to 3% of the oleic acid amide, but not adding much, if more than 3% will affect the adhesion of the ink. In addition. In the printing process,[link widoczny dla zalogowanych], due to solvent evaporation, ink density becomes large, can add a small amount of diluent mixed with the ink to fully diluted, but not a large amount of diluent added. Printing inks according to their suitability for different materials used. Depending on the scope of dealing with the general availability of direct printing inks and printing ink after baking. Baking ink according to the adaptability of different materials can be divided into metallic ink, glass, ink, ceramic ink 3. Because these inks printed at a certain temperature after a certain time before baking so that the ink has good adhesion, so-called one-component curing ink. To get a good printing effect, you must use the ink for printing. The requirements of the printing ink are: easy to operate, long storage period, without jeopardizing the health, environmental protection, easy to clean, good adhesion, material without pre-and post-processing, color concentration, cover good, fine, not drawing , quick-drying, less than ideal substrate surface tension and viscosity of various substrates are widely used and so on. The use of different requirements for different ink. In order to reduce the metal, glass, ceramic baking tedious after the printing process, different materials can be selected according to two-component curable ink, but ink manufacturers will be given to the assembly of the amount of curing agent added to the ink, printing can only Ink has good adhesion, but the loss of such a large amount of ink. The selection and use of ink, taking into account the printed pieces of raw materials, required printing effect, after the printing processing conditions, use of printed materials and other factors. In general, suitable for screen printing ink can be used for the transfer printing, the relatively hot for the printing ink curable inks, UV curable inks,[link widoczny dla zalogowanych], water-based inks. Rely mainly on the transfer of printing ink solvent evaporation, evaporation of ink film bonding. While adjusting the adhesion of the ink through the ink film to achieve good hiding power transfer. Multi-color transfer printing, the material can be printed 36IS kitchen creen Yang Tglnd Pm speed up the drying by ventilation systems, but must be careful not to blow directly on the ink, or ink thinners evaporating too quickly affect the transfer and adhesion. Because the lack of UV ink solvent ink film can not change, this shift for the water transfer, and transfer more difficult. uv curable ink generally used in the field of high-quality printing. The advantages of UV inks steel plate printing ink is not dry, quality assurance,[link widoczny dla zalogowanych], less wear and tear on the steel, fast drying, solvent and so on. The disadvantage is that UV inks for high cleaning pad, the energy requirements of high viscosity requires less solvent-based inks, solvent-refined degree than the printing ink. Plastic is the most common direct transfer printing of printed pieces, whereby the pad printing ink plastic ink is the main type. Common are PVC ~ R ink: for PVC, PVC, nylon material, PVC artificial leather and other soft plastics; ABS inks: for ABS materials, polystyrene and other hard plastic type; PP-PE inks: for poly propylene, polyethylene type of plastic. Work practice, select the three kinds of ink is the easiest way: by chemical solvent cyclohexanone wipe the surface of a few in India, if the cyclohexanone corrosion damage on the plastic surface effects to use ABS or PVC ~ R ink for printing; if cyclohexanone no corrosive effect on the plastic surface, the ink must be selected PP-PE. In addition, the printing properties of high temperature rigid plastic or other engineering materials, to use baking inks (such as metal, after the printing ink and other baking process) to achieve good adhesion, curing method of testing after the ink can be simple adhesion, that is, after paste with packaging tape pull, if the ink does not fall off, indicating that ink fastness is good.
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