Thoroughly Solve the Technical Problems of the Nine Major UV Optical Oil

1. The reason for the phenomenon of "linen": a. Ink has a crystallization phenomenon;. Solution: a. Add 5%lactic acid to UV oil to destroy the crystal film or remove oil or hair treatment;. 2. The reasons for the phenomenon of strip marks and wrinkles: A.UV is too thick, the amount of coating is too large, mainly in roller coating. Solution: a. Reduce the viscosity value of UV oil, add an appropriate amount of alcohol solvents to dilute. 3. Bubble phenomenon: a. The quality of UV oil used is not high, UV oil itself contains air bubbles, and most of them occur in the use of silk network light. Solution: a. Instead of high -quality UV oil or put it for a period of time before using. 4. Causes of orange peel phenomenon: A.UV has high oil viscosity and poor flow; b. The coating roller is too thick and not smooth and the coating is too large; c. Solution: a. Reduce viscosity, add the flowing agent and appropriate solvents;. 5. Reasons for hair adhesion: a. Insufficient ultraviolet light intensity or too fast machine speed; B.UV optical oil storage time for too long; c. Excessive diluent that does not participate in the response. Solution: A. When the speed of curing is less than 0.5 seconds, the ultraviolet light power should not be less than 120W/cm;. 6. Poor adhesion, which cannot be applied or fired: A. Printing ink surface generates crystallized oil, pollination, etc., and excessive ink oil and dry oil in the ink; The coating is too thin;. Solution: A. Eliminate the crystal layer, treat hair treatment or oil or add 5%lactic acid; , Increase the amount of coating; d. Instead of mesh roller that matches the UV optical oil; Or replace the special UV optical oil or select materials with good surface performance. 7. Insufficient luster Brightness is not enough: A.UV's light oil viscosity is too small, too thin coating, and uneven coating; b. The printing materials are rough and the absorption is too strong; Small; d. Solution: a. Properly increase the viscosity and coating of UV optical oil, adjust the coating mechanism to make the coating uniform; Increase oil supply;. 8. The reason for the phenomenon of white dots and pinhole: a. The coating is too thin or the mesh roller is too fine; Rolling the thickness of the coating; b. Add a small amount of smooth auxiliary agent and use active diluents involved in the reaction;. 9. Real scent due to large scent: a. Drying is not thorough, such as insufficient light strength or too many non -reactive diluents; b. Poor anti -oxygen interference ability. Solution: a. CITIC and drying should be thorough, choose the appropriate light source power and speed, reduce the use of non -reactive diluents or not to use it; b. Enhance the ventilation and exhaust system.