Flexible packaging printing, learn about the types of water-based ink additives and using method

1, PH stabilizer. PH stabilizer can be added in the process of printing from the ink in the system of the ammonia volatilization and water, contribute to the stability of the ink viscosity, ensure the quality of printing. According to different substrates, the pH stabilizer is divided into ordinary and thin film. When printing fine line, to use the special pH stabilizer. The use of the general pH stabilizer is every 30 - Add 1% of the total amount of ink - 40 minutes 2% mix, or adding stabilizer to cycle in the ink pump. 2, defoaming agent. General to before start printing ink to add right amount of defoaming agent, foam to prevent ink, printing process, when necessary, still can add just the right amount of defoaming agent. The amount of defoaming agent every time shall not exceed the total amount of ink 0. 5% ~ 1%. 3, fast drying, slow drying agent. Depending on the speed to press the actual printing ink to add fast drying, slow drying agent, properly change the drying speed of water-based ink, in order to get satisfactory printing effect. Its dosage is 1% of the total amount of ink 2%. 4, light agent. On the premise of pH value and viscosity unchanged, from light agent can make some the color of the ink concentration down. The dosage should be depending on the specific situation. 5, thinner. Add thinner in ink can be in does not affect the pH value, to thicken the viscosity of water-based ink drop down. The amount must not exceed 5% of the total amount of ink. 6, strengthening agent. Strengthening agent can improve the printing ink or light oil to the substrate adhesion, its dosage is 1% of the total amount of ink - commonly 2%. 7, in addition to electrostatic agent. In addition to electrostatic agent which can effectively prevent printing machines in the accumulation of static electricity, the dosage general 0 for the total amount of ink. 5% ~ 1%.