Confusion when using metal ink and its ideas about - Metal Ink - Screen Printing Special Printing industry
Why the good times we were using Metal Ink However, Print Out effect is still not satisfactory, not flash it? In addition to the metal used in quality ink, the reasonable production mode of operation is also very important.
Designers often choose to gold and silver metallic outside (MetallicColor). The printer itself using more four-color metallic ink or other color ink to adjust the metal spot color ink, but ink used for the production of metal materials are relatively soft metal and thin metal films, and many printing operator used to compare with some marginal ink mixing hard metal tools, metal material on the shear-sensitive, high shear force can cause deformation of metallic pigment particles or the formation of many fine particles, to avoid shear stress on metal paint particle effects, adjust the metal in the spot color ink, you should use some of the more smooth tool, to avoid high-speed stirring, otherwise the transfer will lose luster out of ink.
In addition, general printing ink factory making metal spot-color ink when the ink used in media (such as resin and Solvent ), Mostly made of metal and ink have been somewhat different, with as mentioned earlier, mixing metallic spot color ink is different from the production equipment when ordinary ink, so if it is to cope with lots of packaging printing directly to the ink factory custom metal spot-color ink get better results.
Experience using metal ink Because the material used to make metal ink is active metal material, so the chemical properties of metal ink is also very unstable, use and storage should also be strictly sealed to prevent absorption of excessive moisture and direct light for long periods irradiation. In lithography, the use of inappropriate fountain solution will very much influence the shiny effect.
Addition of metal pigment density, so ordinary ink metal ink compared to the pigment particles is easy to precipitate the absence of adequate mixing before use, but also in the plane did not check before printing ink barrel at the bottom of whether there is sediment, which out of print quite different hue and brightness. Metallic ink will be printing process, with the continued volatile solvent, the viscosity gradually increased, in order to ensure the stability of metallic inks and good liquidity and transferability, to regularly measure the viscosity of ink and add the appropriate solvent, the ink viscosity to maintain the stability state.
Metal ink prices much higher than ordinary ink, but the recovery of bad ink left over in the metal ink, will find that gloss is decreased, so the smooth production to meet under the premise of due process in the printing possible to add a small amount of metal ink several times to achieve the principle of not wasting.
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