Product Parameters
| PL-5050H (old big case) |
| Technical specification |
Nozzle models available |
Nozzle treatment area |
Model |
| Interface display |
Three and a half LED digital tube |
R17 Rotate nozzle 16 |
16mm |
PL-JX-022-1 |
| rated supply voltage |
AC220V ±10% |
R03 Rotate nozzle 20 |
20mm |
PL-JX-004-1 |
| Plasma output power |
1000VA |
R04 Rotate nozzle 30 |
30mm |
PL-JX-006-1 |
| Input current |
4.0-6.0A |
R21 Rotate nozzle 40 |
40mm |
PL-JX-008-1 |
| Supply frequency |
20kHz |
R05 Rotating nozzle 50 |
50mm |
PL-JX-010-1 |
| Air source requirement |
External air source (gas consumption 60L/min |
R23 Rotate nozzle 70 |
75mm |
PL-JX-014-1 |
| Air source input pressure |
≥0.6Mpa |
|
|
|
| Air pressure operating range |
0.1-0.25Mpa |
|
|
|
| Mode |
Signal Mode/ Encoder Mode |
|
|
|
| Relative humidity |
<93% |
 |
| Storage temperature |
-25ºC-+55ºC |
| Cleaning height |
5-15mm |
| Treatment width |
≤75mm |
| Bracket |
Dovetail support |
| Chassis dimensions (including components) |
690(L)*280(W)*485(H)mm |
| Net weight |
26kg |
| Dimensions of the outer packing box |
795*345*540mm |
| Gross weight |
33kg |
| Detection function |
Air pressure detection, overtemperature detection, undercurrent detection |
| Fault alarm |
Undercurrent, input overcurrent, output overcurrent, abnormal air pressure |
PET (polyethylene terephthalate) foils boast exceptional attributes such as strength, transparency, chemical resistance, and superior barrier properties, making them indispensable across numerous industries. Their adaptability coupled with eco-friendly recyclability positions them as the material of choice for both everyday essentials and specialized applications.
Applications of PET Foils in Printing
Explore this detailed overview that highlights the essential applications where printing becomes a necessity:
1. Packaging
- Food Packaging: Perfectly suited for snack bags, wrappers, and metallized films, ensuring robust moisture, oxygen, and aroma barriers.
- Pharmaceuticals: Ideal for blister packs and sterile packaging, offering supreme protection against moisture and contaminants.
2. Electronics
- Insulation Films: Act as protective layers in cables, capacitors (used as dielectric films), and flexible printed circuits.
3. Printing & Labels
- Durable Labels: Widely used in product labels, electronics, and machinery, prized for their high tear resistance.
- Lamination Films: Essential for documents, ID cards, and credit cards, ensuring longevity and protection.
- Graphic Arts: Banners, decals, and holograms gain from PET's outstanding printability and resilience.
4. Automotive
- Protective Films: Employed for paint protection and decorative interior foils, ensuring durability and style.
5. Medical
- Sterile Packaging: Guarantees the safety and extended shelf-life of medical devices.
6. Industrial
- Release Liners: Serve as carriers for adhesives and composites, ensuring ease of application.
7. Textiles
- Laminated Fabrics: Manufacture waterproof and weather-resistant materials, perfect for outdoor gear and apparel.
8. Specialty Applications
- 3D Printing: Functions as substrates or support materials, enhancing the creative potential.
- Arts & Crafts: Ideal for stencils and transparent overlays, encouraging artistic expression.
The Challenge of Printing on PET Foils
Printing on PET foils can be challenging due to their low surface energy. However, to achieve excellent ink adhesion and print longevity, employ plasma surface treatment by following this comprehensive strategy:
1. Plasma Type and Gas Selection
Oxygen Plasma
- Introduces polar functional groups (-OH, -COOH) to significantly boost surface energy.
- Enhances wettability, especially for water-based and solvent-based inks, ensuring superior print quality.
Nitrogen or Argon Plasma
- Facilitates cross-linking or provides gentle etching to enable mechanical interlocking.
- Particularly beneficial for UV-curable inks, enhancing long-lasting performance.
Mixed Gases (e.g., O + Ar)
- Combines chemical activation with physical etching for optimal results.
- Customizes surface roughness for superior ink anchoring and adherence.
2. Key Parameters Optimization
- Power: Maintain low power for atmospheric plasma and higher for vacuum systems, balancing effectiveness and efficiency.
- Treatment Time: Maintain swift operations with atmospheric systems to ensure optimal speed and efficiency.
- Pressure:
- Vacuum plasma: Achieve consistent, uniform treatment with 0.1-1 mbar pressure.
- Atmospheric plasma: Seamlessly operates at ambient pressure for efficient inline processing.
- Distance: Adjust precisely based on the plasma source and PET material to ensure uniformity, while effectively managing heat.
3. Equipment Considerations
Atmospheric Plasma
- The perfect solution for high-speed roll-to-roll printing applications, including packaging and labels.
Low-Pressure Plasma
- Designed for high-precision treatment, ideal for electronics or medical packaging.
Plasma Jet Arrays
- Guarantee uniform treatment across expansive formats of PET foils with precision.
4. Surface Activation
Chemical Modification
- Enhances surface energy by adding polar groups, aiming for a contact angle below 40°.
- Improves ink wetting and bonding, leading to superior adhesion.
Physical Etching
- Creates nano-scale surface roughness (10-50 nm Ra), promoting mechanical ink bonding.
Cleaning
- Eliminates oils, additives, and dust that could obstruct adhesion.
5. Post-Treatment Handling
- Immediate Printing: Ensure printing within 15-60 minutes to prevent hydrophobic recovery, maintaining surface quality.
- Storage: If printing is postponed, store in dry, inert environments like a nitrogen atmosphere for optimal preservation.
- Primers: Enhance durability with adhesion promoters such as silanes, ensuring long-term performance.
6. Characterization and Validation
- Contact Angle Measurement: Target a contact angle of less than 40° for water, confirming hydrophilicity efficiently.
- Ink Adhesion Tests:
- Conduct Tape Test (ASTM D3359) for reliable peel resistance.
- Perform abrasion resistance tests, such as the Sutherland Rub Tester, to ensure durability.
- Surface Analysis:
- Employ XPS/FTIR to confirm oxygen-functional groups' presence.
- Utilize AFM for measuring surface roughness, targeting Ra between 10-50 nm.
7. Industrial Implementation Tips
- Uniformity: Utilize rotating electrodes or multi-jet arrays within roll-to-roll systems for consistent output.
- Ink Compatibility:
- Water-based inks demand hydrophilic surfaces for optimal results.
- Solvent/UV inks require moderate roughness to enhance anchoring.
- Pre-Treatment Cleaning: Utilize ionized air or mild solvents like isopropyl alcohol to effectively remove dust and static.
8. Troubleshooting Common Issues
Poor Ink Adhesion
- Boost plasma power or extend treatment time for better adhesion.
- Consider switching to oxygen plasma for enhanced effectiveness.
- Inspect for any surface contamination.
Over-Treatment
- To prevent PET from becoming brittle or discolored, consider reducing the plasma power or treatment time. This adjustment ensures the integrity and color of the PET is maintained, safeguarding product quality.
Experiencing Ink Spreading Issues?
- Optimize the surface energy of your materials to seamlessly align with the ink's viscosity and flow behavior. This calibration is essential for achieving smooth, precise ink application.
By precisely fine-tuning the parameters of plasma surface treatment and seamlessly integrating them into your production line, you can dramatically enhance ink adhesion and the durability of prints on PET foils. This results in vibrant and enduring prints while maintaining optimal production efficiency.
Partner with Keylink Technology for Superior Surface Solutions
At Keylink Technology, we are leaders in atmospheric and low-temperature plasma systems. Whether you need standard options or bespoke solutions engineered to match your PET printing requirements, we are here to help. Get in touch with us to test your materials and elevate your print quality through our expert surface treatment solutions.
Company Profile
Certifications
Exhibition
Packaging & Shipping
FAQ
1. What is the shipping warehouse location?
Answer:Our main shipping warehouse is located in Zhejiang, China, and we ship globally via trusted logistics partners. We also accommodate customer-preferred shipping methods or carriers.
2.What is the production lead time?
Answer:Lead time varies based on order size and product type:
- For small to medium orders (e.g., 10-20 machines), the lead time is approximately 3-4 workdays.
- We expedite production to meet tight deadlines whenever possible, especially before holidays like the Spring Festival.
3.Can I customize my order (e.g., specific configurations or spare parts)?
Answer:Yes, customization is available! We can tailor machine configurations, spare parts, and accessories (e.g., nozzles or cable lengths) based on your specific requirements. Please share your customization needs during the order confirmation process.
4.What are the payment terms?
Answer:We offer flexible payment terms, including:
- Full payment before shipping
- 50% deposit upon order confirmation.
- Remaining balance before shipment.
Payments are typically made via SWIFT transfer. For long-term partners, we can explore customized payment plans based on mutual agreement.
5.What kind of after-sales support do you provide?
Answer:We offer comprehensive after-sales support, including:
- Technical Assistance: Troubleshooting via email, phone, or video calls.
- Spare Parts: Quick access to replacement parts for machines under warranty or through spare part orders.
- Documentation: User manuals, maintenance guides, and troubleshooting SOPs for all products.
- On-Site Support: For critical issues, we can dispatch technicians to your location (subject to availability and agreement).
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