At the same time, it also affects the gloss and ink transmission of the ink. The amine compound mainly maintains the alkaline PH value of the aqueous ink, so that the acrylic resin provides better printing effect. The water or other organic solvent mainly dissolves the resin, adjusts the viscosity and drying speed of the ink. The auxiliary agents mainly include: defoaming agents, retarders, stabilizers, and dilute agents. 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. The water-based ink refers to a volatile ink which uses water and a part of alcohol as a solvent. The ink is dried with the volatilization of water, and the printing process has no pollution to the environment. The ink is non-toxic to the human body, is not easy to burn, and has good safety. Solvent-based inks also use a volatile drying method, but a large amount of volatile organic compounds are released. Article source address: http:// Non Woven Fabric Hanging Organizer,Hanging Closet Organizer Shelves,Clothes Organizer Drawers,Hanging Closet Wardrobe Storage ROYALWIND IMPORT&EXPORT CO.,LTD , https://www.hoombest.com
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