How To Store Printing Ink Properly: Complete Guide For UV And Screen Printing Ink
Apr 20, 2026
In the printing industry, ink quality directly affects the final output, including color accuracy, viscosity, drying performance, and print consistency. Improper storage can lead to issues such as:
• Viscosity instability
• Poor leveling performance
• Reduced efficiency
• Equipment damage risk
General Ink Storage Guidelines
UV Ink Storage Guidelines
1. Temp Control (5°C–25°C): High temps trigger polymerization; low temps cause gelation.
2. Light Protection (Critical): Exposure to UV or strong visible light can initiate curing. Use opaque containers.
3. Airtight Sealing: Prevent exposure to moisture and air to avoid viscosity increases.
4. Contamination Prevention: Avoid mixing different inks or impurities.
5. Regular Inspection: Shake or stir before use to ensure uniform composition and curing speed.
Screen Printing Ink Storage Guidelines
1. Temp Control (15°C–25°C): Maintains chemical stability and prevents thickening.
2. Humidity Management (50%–60%): Prevents ink drying, clogging, or slow drying behavior.
3. Light Protection: Store in shaded or enclosed environments away from UV.
4. Proper Sealing: Prevent solvent evaporation and "skin" formation.
5. Regular Stirring: Prevents pigment settling and phase separation over long periods.
Common Ink Storage Mistakes to Avoid
Best Practices for Industrial Operations
- Dedicated ink storage rooms with monitoring systems.
- FIFO (First In, First Out) inventory management.
- Regular quality inspection procedures.
FAQ
Q1: What is the ideal temperature for storing printing ink?
UV ink: 5°C–25°C; Screen printing ink: 15°C–25°C.
Q2: Can UV ink be exposed to light during storage?
No. UV ink must be stored in a completely dark environment to prevent premature curing.
Q3: How long can printing ink be stored?
It depends on the formulation, but proper storage significantly extends usable life.
Recommended Printing Ink Supplier
Why Choose Hangzhou Guolv Printing Materials Co.,LTD?
Choosing the right storage method is important-but working with a reliable ink supplier is equally critical for consistent performance.
- ✔ Stable Formulations: Consistent viscosity and color performance.
- ✔ Eco-Friendly Options: Water-based and low-VOC solutions.
- ✔ Wide Application: Support for packaging, textiles, and industrial printing.
- ✔ Technical Support: Expertise in ink selection, storage, and optimization.
