How to Store UV Ink Properly ：Extend Ink Lifespan & Print Quality
Ink Storage Best Practices
In modern printing technology, the quality and storage conditions of ink directly affect print results and equipment lifespan. Proper ink storage is a key factor in ensuring printing quality and efficiency. Many users often overlook storage details during use, leading to poor print quality or even equipment damage. This article will guide you through the proper methods for storing ink to help extend its lifespan and improve print quality.
Store Away from Light
UV ink is highly sensitive to light, especially ultraviolet light, and can cure when exposed to it. Therefore, it should be stored in a cool, shaded environment, avoiding direct sunlight. It is best to keep the ink in black, opaque containers, and package them with cartons or other light-blocking materials.
Keep Tightly Sealed
UV ink is volatile, so unused or temporarily unused ink should be kept sealed. Ensure the bottle cap is tightly closed to prevent dust and debris from entering. This not only avoids evaporation but also prevents nozzle clogging caused by impurities.
Control Storage Environment
Temperature
The ideal storage temperature for UV ink is 16°C to 28°C. Avoid high or low temperatures. In winter, take special care to keep it warm to prevent coagulation in low temperatures.
Humidity
Maintain humidity levels between 55% and 65% to avoid ink deterioration.
Ventilation
Ensure proper ventilation to help regulate humidity and prevent ink from becoming too thick or diluted.
Store Safely
Keep ink away from fire or heat sources to avoid accidents. Choose an indoor warehouse location rather than visible or easily accessible spots to prevent mishandling by non-staff. Maintain a 3–5 cm gap between bottles to avoid collisions.
Follow the “First In, First Out” Principle
When managing UV ink, always use the “first in, first out” method—use older stock first to prevent performance degradation due to prolonged storage. The general shelf life for UV ink is 12 months, and once opened, it should be used as soon as possible.
Properly Handle Remaining Ink
After printing, leftover ink should be sealed and stored away from light. Before reuse, filter it with a fine filter and stir thoroughly before mixing with new ink to avoid nozzle clogging.
Expired Ink
If expired ink has not been used but remains uniform in color, transparent, and without obvious sediment, it may still be usable. Shake the bottle vigorously, or use a stirring rod or mixer at a moderate speed to redistribute the components evenly. If the ink returns to normal after shaking, the sediment may simply be due to long-term standing, in which case you can try using it.
Proper ink storage not only extends its lifespan but also effectively improves print quality and equipment performance. We hope these tips and suggestions are helpful to you. If you encounter any issues with ink storage or printing, feel free to leave a comment or send us a private message, and we will provide you with more practical solutions and professional advice.