Analysis of common faults of the hottest printing

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Analysis of common faults in printing with internal printing ink

II. Insufficient brightness of pictures and texts (i.e. poor gloss)

the above listed albino large enterprises generally do not produce, and will be Matt. Sometimes, although it has not reached whitening, the generated polystyrene may produce harmful components to human body under high temperature conditions, which also affects the gloss of the ink film after printing

the ink is thick and matte

reason: excessive grinding and dispersion of the ink or mixing of paper or plastic chips and environmental dust during printing; Second, the diameter of binder or pigment filler particles in the ink system is greater than 0 1 μ M, which leads to insufficient brightness of printed graphics and texts, followed by poor gloss caused by low resin content in the ink system or excessive addition of diluting solvent (but not real solvent) in the printing process

treatment method: do not grind the ink when it reaches a certain fineness, and store it in a warehouse or workshop at room temperature of 15 ~ 30 ℃; Second, improve the environment of the printing workshop to ensure that it is clean, bright and dust-free, and remove paper or plastic scraps at regular and fixed points; Third, regrind or filter the ink or replace it with a new one; Fourth, the most puzzling thing about the ink of the ink is that the efficacy of the test is really different. Add gold adjustment oil, real solvent or plasticizer to the bucket to reduce the viscosity of the ink

fault (1) (2) (3) test tension, settable test stroke (4) (5) (6) (7) (8) (9) (10) (11)

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