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Determine the UV inks are UV light completely cured of the four approaches

Determine the UV inks are UV light completely cured of the four approaches 2010-6-20

Determined by uv light irradiation uv ink completely cured of four kinds of detection methods:

1, with a pencil hardness test

Uv ink technology used in all conditions have a pencil hardness of the contents of this request, we can pencil hardness tester for testing, if the meet the requirements (usually 3-4h) have proved that the ink is completely cured.

2, with the drop test method of solvent

Ibid said, uv ink technology also has solvent conditions of the project, because the ink completely cured, the internal molecular structure will change toward the double bond conversion, the conversion of high curing is completely, resulting form the overall tightening of the coating ink layer. According to the performance of the solvent acid solution drops after 2min in the board if there is no change in that ink was irradiated with uv light has been completely cured.

3, pressure method to test the coating is derived from the detection method. Select one 500g weight flat bottom, put a few cotton fibers on the surface of uv curing and then pressed weight cotton silk fibers 2 ~ 3min, and then remove the weights, if the stick on the surface of cotton silk fiber The surface has fully cured.

4, observing the appearance of completely curing uv ink method has bright surface, and no hair virtual phenomenon, not virtual shadow edge, which is determined by uv light irradiation ink completely cured one of the important features.
Of course, many long-term production performance by uv ink, the working environment, working conditions, equipment performance and application of the results of comprehensive experience gained is invaluable technical wealth, if we can experience and test results usually combine to determine whether it would be more accurate and complete cure.

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