The compatibility test of LED ink with different substrates is an important part of evaluating the performance and application range of LED ink.
First, the compatibility test of LED ink with substrates needs to consider the composition of ink. LED ink usually contains components such as pigments, acrylic prepolymers and monomers, photosensitizers, etc. The chemical reactivity of these components with the surface of the substrate is the key factor affecting compatibility.
Second, different types of substrates have different absorption and adhesion capabilities for LED ink. For example, packaging substrates such as paper, cardboard, metal, glass, aluminum foil, and plastic show different compatibility with LED ink due to differences in surface properties, porosity, and chemical composition.
Third, during the test, attention should be paid to the drying and curing effects of LED ink on different substrates. Too fast drying time may cause blanks in the filling area and burrs, while too slow drying may cause color changes and blurred patterns.
Fourth, the test also needs to evaluate the color performance of LED ink on different substrates. Color uniformity, brightness, and contrast are important indicators for evaluating ink performance. Different substrates may affect the color development effect and color reproduction of ink.
Fifth, in addition to the above performance indicators, the bonding strength between LED ink and substrate should also be considered. Good bonding strength can ensure the durability and stability of the printed pattern and prevent shedding and wear.
Sixth, in practical applications, the environmental protection and safety of LED ink and substrate should also be considered. Choosing non-toxic, pollution-free, energy-saving LED ink and substrates that meet environmental protection standards is of great significance for protecting the environment and human health.
Finally, for different application fields and specific needs, the compatibility test of LED ink and substrate should flexibly adjust the test plan and evaluation criteria. By comprehensively evaluating various performance indicators, the most suitable LED ink and substrate combination can be selected to ensure that the printing effect and product quality meet the expected requirements.
