Coating knowledge: how to judge whether UV ink is completely cured

Core tips: 1 Pencil hardness is one of the technical conditions for testing all UV inks According to this requirement, we can use pencil hardness tester to test If it meets the requirements (generally 3-4h), it can be proved that the ink has been fully cured 2 Test with the method of dropping solvent As mentioned above, there are also solvent resistant items in the technical conditions of UV ink Drop propionic acid solution on the board for 2min according to the performance of solvent resistance If there is no change, it can be proved that it is completely cured Because after the ink is fully cured, the internal molecular structure will change, and the conversion to double bond will be complete Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: 1 Pencil hardness test all the technical conditions of UV ink use include pencil hardness According to this requirement, we can use pencil hardness tester to test If it meets the requirements (generally 3-4h), it will prove that the ink has been fully cured 2 Test with the method of dropping solvent As mentioned above, there are also solvent resistant items in the technical conditions of UV ink Drop propionic acid solution on the board for 2min according to the performance of solvent resistance If there is no change, it can be proved that it is completely cured Because after the ink is fully cured, the internal molecular structure will change, toward the double bond conversion, the conversion of high curing is complete, and then the ink as a whole forms a tight coating 3 The pressure test method is originated from the coating test method Select a 500g weight with flat bottom, place several cotton fibers on the UV cured surface, press the weight on the cotton fiber for 2-3min, and then remove the weight If the cotton fiber does not stick to the surface, it can prove that the surface is completely cured 4 The UV ink fully cured by the appearance observation method has a bright surface, and there is no hair and shadow on the edge, which is also one of the important characteristics to determine the complete curing of the ink Of course, a lot of experience gained in the long-term production through the performance of UV ink, working environment, working conditions, equipment performance synthesis and application results is valuable technical wealth, but today, with the continuous development of science and technology, how to make the combination of valuable experience and scientific practice will become the development direction of the industry It will be more accurate to combine the usual experience and testing to determine whether the curing is complete Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,