The resin for ink is the carrier of the pigment in the ink, and is the core material of the ink. The quality of the ink will directly affect the performance of the ink, because the binder determines the viscosity, viscosity, dryness and fluidity of the ink to a large extent. Other nature. In order to obtain high-quality inks, it is necessary to use high-quality inks for resins. Alkali resistance of pigments: Pigments are materials that impart color characteristics to the ink and meet the color requirements of printing. Since the resin of the aqueous ink is mostly alkali-soluble, the viscosity and pH of the ink are precisely controlled, and the pH is generally controlled between 8.0 and 9.5. When the pH is higher than 9.5, the alkalinity is too strong, the viscosity of the ink will decrease, the monotonic speed will be slow, and the water resistance will be deteriorated; when the pH is lower than 8.0, the alkalinity will be too weak, and the viscosity of the ink will rise. The ink is easy to monotonous and will form defects such as dirty plate, paste and blistering. Therefore, pigments with excellent alkali resistance must be used when selecting pigments. Relative density of pigments: When the relative densities of pigments for aqueous inks are very different from each other, pigments with relatively low density are simply floating on them. For example, ink-green inks are often co-colored with pigments such as carbon black and phthalocyanine blue lead chrome. The phenomenon of floating color, hair flowering, sedimentation, etc.; when the relative density of the pigment is too large, the stability of the aqueous ink is damaged due to its simple deposition and agglomeration, such as iron red, chrome yellow, etc., often because the agglomeration cannot be stirred. Once the ink has dried, it is no longer soluble in water and ink. Therefore, the aqueous ink must be thoroughly stirred before use to keep the ink composition uniform. When adding ink, the residual ink in the ink tank should be filtered first, and then used with new ink. Do not allow the ink to dry on the anilox roller during printing to avoid clogging the ink holes. Blocking the quantitative transfer of ink causes printing instability. Article source address: http:// Bathroom Floor Cabinet,Floor To Ceiling Cabinets,Floor To Ceiling Kitchen Cabinets,Floor Standing Bathroom Cabinets ROYALWIND IMPORT&EXPORT CO.,LTD , https://www.hoombest.com