Reasons for the poor curing effect of the ink during the printing process of the UV flatbed machine

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Industrial-grade UV flatbed printer is a kind of industrially produced inkjet drawing equipment. Its nozzles are highly precise and expensive. For a store that is just starting out, it is a large investment. If you don’t pay attention to maintenance, it will appear. Such and such problems.

What problems should users pay attention to in daily operations?

1. Prevent direct contact with the nozzle surface.

The nozzle hole diameter of the UV flatbed printer nozzle is smaller than that of hair. Once the dirt and dust on the fingers, tools, etc. get on the surface, it will inevitably block the nozzle and cause ink breakage. Therefore, it is usually assumed that the appearance of the nozzle is relatively dirty, and it must be wiped with a paper towel that does not shed paper scraps to prevent lint and other debris from remaining.

2. Store the nozzle of the UV flatbed printer correctly.

Under normal circumstances, we do not recommend storing the print head separately, because the external temperature will affect the physical properties of the remaining ink inside the print head. For example, high temperature will cause the ink solvent to volatilize, solidify rapidly, and cause nozzle blockage. If it is not cleaned in time, it may corrode the internal electronic components, then the nozzle will be completely scrapped.

3. Shut down properly.

In order to ensure the normal use of the flatbed printer and prevent the inconvenience caused by power failure, a transformer must be installed in the workplace. Before shutting down, turn the gear to OFF, turn off the power supply after returning the nozzle, and then unplug the plug. Do not block the power supply suddenly, as this will cause the nozzles to fail to return to the ink stack in time and be exposed to the air, which may cause the ink to dry up and block the head.

The solidification speed of the pattern printed by the UV flatbed machine is relatively fast, mainly relying on the high heat generated by the instantaneous reflection of the UV lamp.

4. Clean the printer regularly.

Regular cleaning and maintenance of the UV flatbed printer are necessary to ensure the long-term stability and service life of the equipment. It is recommended to clean the nozzle surface, ink stack, ink road, and other parts daily. Periodically, a deep cleaning operation should be performed to remove stubborn dirt and debris.

5. Use high-quality ink and media.

Using high-quality ink and media can greatly improve the printing quality and extend the service life of the printer. Inferior or incompatible ink and media may cause blockages, color deviations, or even damage to the printer. Therefore, it is recommended to use ink and media from reputable manufacturers and follow their usage guidelines.

6. Avoid exposure to direct sunlight.

Direct sunlight can cause the ink to fade or change color, affecting the printing effect and durability. Therefore, it is recommended to place the printer in a well-ventilated and dark place, away from direct sunlight and heat sources.

7. Handle the printer with care.

The UV flatbed printer is a precision instrument, and rough handling may cause damage or malfunction. When moving or fixing the printer, it is recommended to follow the instructions and use appropriate tools and methods to avoid damage to the machine or personal injury.

However, users may encounter the problem of incomplete curing. What is going on? How to deal with it?

The incomplete curing of UV ink can be caused by several factors. Some of the common reasons are:

1. Insufficient UV light exposure time: 

The UV ink needs to be exposed to UV light for a certain period to cure completely. If the exposure time is not sufficient, curing will be incomplete, resulting in tacky ink.

2. Incorrect curing power or intensity: 

If the UV lamp’s power is too low or too high, it can lead to incomplete curing. Similarly, if the intensity of the UV light is not adequate, the ink will not cure completely.

3. Ink viscosity: 

The viscosity of the ink also plays a crucial role in complete curing. If the ink is too viscous, it may not spread evenly on the substrate, leading to incomplete curing.

4. Age and condition of the UV lamp: 

UV lamps have a limited lifespan. If the lamp is old or damaged, it may not emit sufficient UV light needed for complete curing.

To deal with incomplete curing, you can try the following steps:

1. Increase the UV light exposure time to ensure that the ink cures completely.

2. Check the curing power and intensity of the UV lamp and adjust it accordingly.

3. Make sure the ink viscosity is correct and adjust it if necessary.

4. If the UV lamp is old or damaged, replace it with a new one.

By taking these steps, you can ensure that the UV ink cures completely, resulting in high-quality prints.


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