The main components of pad printing ink
Additives (accounting for 3%)-also known as additives, are generally used in small amounts. Their role is to adjust the characteristics of the ink, which can make the ink smoother and increase the stability of the pigment. Its types include leveling agents and thickeners. Wait.
The main components of pad printing ink are resin (one or more types, which are connecting materials), pigments, solvents and additives. The following is the analysis of pad printing ink composition:
Solvent (60%)-allows the resin pigment composition to be printed on the object, making the ink smoother and increasing the stability of the pigment.
Pigments (accounting for 17%)-bring color to the ink and become opaque. But no matter what kind of ink is used, it should be used as much as possible and mixed thoroughly. In order to ensure the printable viscosity, the ink should be properly adjusted during the pad printing to ensure the continuous progress of the pad printing. The lack of additives will make the ink easy to crack Open, less tension and pigment separation. Solvent is the decisive factor for the drying speed of pad printing ink, and it also affects the printing speed and adhesion.
Resin (20%)-used to form thin ink and connect colorants. Pad printing will require a more volatile solvent, but to choose the most suitable, it depends on what other ingredients in the ink, because no solvent is multi-functional, so usually need to use a combination of multiple. The diluent is contained in the solvent, and the diluent is mixed with the ink to obtain the desired viscosity, which facilitates ink transfer.
The main components of detailed pad printing ink are usually composed of the above components. Different resins also need different drying methods. The choice and synthesis of the resin determine the printing characteristics of the ink, such as transfer and adhesion to the substrate, gloss and chemical resistance.
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