FAQ
Q
How to prevent clogging of white ink sublimation print heads?
A
1. Ink Selection and Usage
Use high-quality original ink: Low-quality or expired ink can easily clog due to impurities or high viscosity. Always use manufacturer-approved white ink.
Prevent ink sedimentation: Regularly shake or circulate ink that hasn’t been used for long periods to avoid settling and clogging.
2. Equipment Maintenance & Cleaning
Regularly clean printheads: Perform software-based cleaning at least once a week (via printer maintenance tools). For minor clogs, repeat 2-3 times. For moderate clogs, soak printhead nozzles or ink outlet in warm water (50-60°C).
Check ink delivery system: Regularly inspect ink tubes and cartridges for leaks or air bubbles to ensure proper sealing.
Clean key components: Wipe down wipers, capping stations, and other parts weekly to prevent debris from blocking nozzles.
3. Environmental Control
Maintain optimal temperature & humidity: Keep the workspace at 25-30°C with 40-60% humidity to prevent ink evaporation or freezing.
Dust & moisture protection: Keep equipment away from dust sources and close windows on humid days to prevent moisture buildup.
4. Operational Best Practices
Maintain consistent usage: Even when idle, print at least 20 pages (including test prints) weekly to keep ink flowing.
Proper shutdown procedure: Always perform a printhead cleaning before turning off the machine and retract white ink to the main cartridge to prevent drying.
5. Preventive Measures
Add anti-crystallization agents: Use maintenance fluids monthly to reduce clogging risks.
Deep maintenance before long-term storage: If storing for extended periods, perform three full cleaning cycles and use a dry-out prevention kit.
Q
Here are common issues and solutions for white ink heat transfer printing
A
1. Blurry printed patterns
Cause: Low image resolution or clogged print head.
Solution: Use high-resolution source files (≥300 DPI) and run printer's nozzle cleaning program. For moderate clogs, manual cleaning may be needed; severe clogs require professional service.
2. Ink delivery system failure (no ink output)
Cause: Damaged ink tubes, poor sealing, or leaking ink cartridges.
Solution: Check connections between print head and ink tubes, replace damaged components, and ensure proper sealing of ink delivery system.
3. Color blocks appearing in prints
Cause: Unstable voltage or damaged print head data cable.
Solution: Use voltage stabilizers, try replacing data cables, and consider industrial-grade print heads (e.g., Epson 4720/i3200).
4. Gradient ink breaks
Cause: Leaking ink bags or contamination.
Solution: Replace ink bags immediately and maintain regular cleanliness checks.
5. Oily residue or bubbling
Cause: Moisture retention in white ink layer or incomplete drying.
Solution: Extend drying time (140℃ constant temperature) to ensure complete powder curing and prevent condensation.
6. White edges on finished products
Cause: Improper print head height or ink misting.
Solution: Adjust print head distance to transfer film (1.5-2mm) and regularly clean print head impurities.
7. Color bleeding/discoloration
Cause: Mixed ink colors or contaminated保湿液.
Solution: Use syringes to remove mixed ink from bags and avoid over-hydration of color print heads.
8. Maintenance recommendations
Regular cleaning: Weekly checks of nozzles and blades to prevent ink sedimentation.
Environmental control: Maintain 40%-60% humidity in dust-free areas.
Q
How to Use UV Crystal Label AB Film？
A
- Printing on Film A: Use a UV flatbed printer to apply white ink, patterns, and varnish layer by layer onto Film A with adhesive.
- Securing & Laminating: After printing, secure the edges of Film A with tape, cover it with Film B, and trim to prevent curling and print head damage.
- Transfer Process: Peel off Film A's backing and apply it to the target surface, then remove Film B to complete the transfer—simple and residue-free.
- Precautions:
- Apply only to hard smooth surfaces (e.g., glass, metal); soft materials may reduce adhesion.
- Avoid prolonged exposure to high heat or outdoor conditions to prevent peeling.
Q
What are the advantages of our UV crystal label AB film?
A
- High Transparency & Durability: Made from polymer materials, it offers high transparency, scratch resistance, heat resistance, and UV protection, ensuring long-term use without fading or yellowing.
- Eco-Friendly & Functional: Waterproof, wear-resistant, and vibrant in color with strong 3D texture. It can adhere to various hard smooth surfaces (e.g., metal, ceramic, plastic) but is not suitable for fabrics.
- Simplified Process: AB film technology eliminates the need for additional glue print heads, reducing costs for screen printing plates and film negatives, making it ideal for fast production.
- Visual Effects: Achieves advanced effects like embossing and foil stamping through UV printing technology, enhancing product value.
Q
Does Your Ink Require Coatings?
A
1. Relationship Between UV Inks and Coatings
UV inks typically form a high-gloss, wear-resistant ink layer through ultraviolet curing, but special scenarios still require coatings for enhanced performance:
- Spot UV Varnish: Improves localized brightness, transparency, and abrasion resistance of printed materials, often used in cosmetic packaging and premium labels where texture is emphasized.
- Matte/Anti-Chemical Coatings: Matte effects or chemical resistance (e.g., in acidic/alkaline environments) may require additional matte coatings or fluorocarbon resin coatings.
2. Coating Requirements for Water-Based Inks
Water-based inks use water as a solvent, offering high environmental friendliness, but some applications require coatings to compensate for performance gaps:
- Hygienic Packaging: Food and pharmaceutical packaging may need water-based UV primers to improve adhesion and heat resistance (e.g., withstand 121°C sterilization).
- Substrate Compatibility: Non-absorbent materials (e.g., plastics, metals) require coatings to enhance ink wetting and adhesion.
3. Necessity of Coatings for Special Substrates
- Metal/Glass Printing: Copper or stainless steel surfaces require pretreatment (e.g., polishing, acid washing) and a white ink base layer (≥15μm thickness) to ensure adhesion and color stability.
- Flexible Materials: Flexible packaging printing may need polyurethane coatings to improve flexibility and abrasion resistance.
Q
Why do you choose Swonder PET FILM
A
We are going to show you 3 parts to show you how do we control our pet film quality.
Firstly,Coating&Raw material
1.From the original raw material,we choose the pet film all use the 75Micro film,not 70u.
2.Our factory handle all the coatings formula,including anti static coating,peel strength coating,surface ink absorption coating.(DTF)
Secondly,pet film testing
1.Peel strength test,before cutting,we would use this equipment to test peel strength value.
2.We use the find powder to test the anti-sticky performance.
Thirdly,cutting&pack&stock
1.Each roll we put the silicone to avoid moisture.
2.Per month, production capacities are 25000rolls(Based on 60cm).
3.Each roll has own iD label.
If You Have Further Requirements
Leave your request online and we will respond promptly!
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