As is known to all, during the operation of high-quality holographic electroforming systems, the consumable with a large usage volume is UV ink, which is just like the use of gasoline in fuel-powered cars. Gasoline of National IV standards comes in grades 90, 93 and 97, while National V standards include 89, 92, 95 and 98. UV ink also has different quality grades.

As users, it is impossible for us to carry a bottle of ink for component quality testing. Even if it is done, the quality of the ink still depends on the actual printing effect. For high-quality holographic electroforming systems, in addition to color reproduction, the curing performance of UV ink determines the printing effect.

The curing performance of UV ink mainly includes the following aspects:

I. Degree of Surface curing

To simply check if there is any adhesion on the surface of the printing material, touch it with your hand to see if there are any obvious fingerprint marks. If the requirements are strict, you can place a small ball of cotton on the surface of the printing material, blow away the cotton with your mouth, and check if there is a lot of cotton fiber adhering to the surface.

Ii. Hardness

The fully and thoroughly cured ink layer has a smooth surface, luster and high hardness. The main factors affecting the curing hardness include the thickness of the ink layer, curing time, light source intensity and ink formula.

Iii. Flexibility

For some materials with certain deformability, the cured layer is required to have corresponding flexibility, such as films and leather. From a certain perspective, flexibility and hardness are a pair of contradictions. Flexibility is mainly observed to see if the ink layer cracks or falls off.

Four. Wear resistance and scratch resistance

Wear resistance is generally measured by a abrasion tester. If conditions do not permit, the printing material can be placed in the actual usage environment for tracking and observation.

V. Adhesion

Adhesion refers to the bonding force between the ink layer and the surface of the printing material. The main factors affecting the adhesion of ink include the pretreatment of the printing material, the viscosity of the ink, and the ink formula.

Six. Glossiness

UV ink is relatively easy to achieve a high-gloss cured surface, especially when using a UV flatbed printer to print materials such as acrylic and PVC.

Vii. Resistance Performance

The resistance performance of UV ink includes its ability to withstand weak acids, weak alkalis and organic solvents.

Viii. Thermal Stability

Generally speaking, decorative UV ink does not need to be considered, but it should be taken into account when used for printing on heat-generating electrical devices or heat-exposed components.

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