Factors affecting the printing effect of UV inkjet printer

The main factors that affect the printing effect of UV cij printers include working environment, ink problems, product materials, ink supply negative pressure, curing lamp problems, etc., UV cij printers The working environment of the cij printer generally requires: a temperature of 0℃-45℃, a humidity of 15%-75%, and a good grounding.

1. Environmental impact

The assembly line of some manufacturers does not meet the requirements due to the working environment, the temperature is too low or too high, The humidity is too high or too low, causing the UV cij printer to fail to achieve the normal printing effect.

2. Ink problems

The characteristics of UV ink include viscosity, surface tension, PH value, conductivity, etc. , Different products use inks with different characteristics to achieve the best printing effect.

3. Product material

A kind of ink can not achieve a good printing effect on products of all materials , Such as carton and plastic film with strong permeability, the printing effect will be different when using the same kind of UV ink.

4. Ink supply negative pressure

The lower the negative pressure of the UV cij printer, the more ink will be supplied. Ink is easy to accumulate. The higher the negative value of the negative pressure, the less ink supply, and the ink breakage is prone to occur. That is, insufficient negative pressure of the nozzle will cause ink leakage, and excessive negative pressure will hinder the ejection of ink droplets. Therefore, it must be adjusted to a suitable negative pressure value to achieve the best printing effect.

5. Problems such as curing lamps

UV cij printers generally need to be equipped with LED curing lamps, except for a small number of materials. Curing and drying, if most of the materials are not cured, the printing effect may not meet the demand. In addition, when there is a problem with the computer system and software, the printing effect may also be poor.

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