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油墨粘连 Ink adhesion 原因：油墨不干；油墨内增塑剂过多；收卷张力过大；成品库温度过高； The reasons are: the ink is not dry; the inks are too many plasticizers; the winding tension is too large; the temperature of the finished product is too high. 解决方案：提高干燥温度或采用低沸点溶剂；减少增塑剂；降低收卷张力；成品应放在阴凉处。 Solution: improve the drying temperature or use low boiling point solvent; reduce plasticizer; reduce winding tension; the finished product should be placed in the shade. 堵版 Blocking version 原因：印版太浅；印刷压力过大；供墨量过多；油墨粘度过高；油墨干燥过快； Reasons: the printing plate is too shallow; the printing pressure is too large; the amount of ink supply is too much; the ink viscosity is too high; the ink is too dry; 解决方案：加深印版；调整印刷压力；降低供墨量；降低油墨粘度；降低干燥温度或减少风量。 Solutions: deepen the printing press, adjust the printing pressure, reduce the amount of ink supply, reduce the ink viscosity, reduce the drying temperature or reduce the air volume. 叠色不佳 Poor coloring 原因：套色时前一色油墨为干燥；后印油墨使前印油墨剥离； Reason: the first color ink is dry when the color is applied, and the back printing ink makes the front printing ink be stripped off. 对策：提高干燥温度或增加风量或使用快干溶剂；降低后印油墨粘度或减轻印刷压力。 Countermeasures: to increase the drying temperature or to increase the air volume or to use the fast drying solvent; to reduce the viscosity of the printing ink or to reduce the printing pressure. 针孔 pinhole 原因：油墨在墨辊上干燥过快，传墨不均；油墨在结膜时有孔隙； Reason: ink roller drying too quickly, ink uneven ink pores in the films; 解决方案：减缓油墨干燥速度，使用慢干溶剂；调整添加剂改善油墨成膜性。 Solution: slow down the drying speed of ink, use slow drying solvent, adjust the additive to improve the film formation. 墨层太薄 The ink layer is too thin 原因：油墨粘度太低；网纹辊网线过浅； Reason: the ink viscosity is too low; the mesh line is too shallow; 解决方案：提高油墨粘度；挑换粗网纹的网纹辊。 Solution: improve the ink viscosity; pick up the reticle roll with coarse mesh. 斑点 speckle 原因：塑料薄膜厚度不均；油墨太稀；油墨的粘性不够；印版涂墨不均； The reason: the thickness of the plastic film is uneven; the ink is too thin; the ink stickiness is not enough; the printing plate is inhomogeneous. 解决方案：更换为厚薄均匀的薄膜；调稠油墨；添加增粘树脂、增加油墨粘性；检查供墨设备。 Solution: the film is replaced by thick and uniform film, thickening ink, adding adhesive resin, increasing ink stickiness, and checking the ink supply equipment.