Double-layer Thermal Positive CTP Plate
High Sensitivity and Excellent Printing Stability
Double-layer Thermal Positive CTP Plate
Thermal CTP Plate, Double-layer CTP Plate, Positive CTP Plate, Thermal Positive Plate
The Double-layer Thermal Positive CTP Plate is a high-performance plate designed for 830 nm thermal laser exposure systems.
It adopts a double-layer coating structure—an upper imaging layer and a lower protective layer—providing enhanced durability, wider processing latitude, and superior dot reproduction.
This plate ensures consistent imaging quality, long run length, and reliable performance for high-volume commercial and packaging printing.
It is ideal for printers who need high-speed plate making, stable processing, and long-lasting print results under demanding pressroom conditions.
Technical Data Sheet
| Item | Specification |
|---|---|
| Plate Type | Double-layer Thermal Positive CTP Plate |
| Imaging Wavelength | 830 nm (Thermal Laser) |
| Substrate | Electrochemically grained & anodized aluminum |
| Coating Structure | Dual-layer photopolymer (imaging + protective) |
| Plate Thickness | 0.15 mm / 0.20 mm / 0.30 mm |
| Resolution | 1%–99% @ 250 lpi |
| FM Screening | 20 μm FM screen |
| Run Length (Unbaked) | Up to 300,000 impressions |
| Run Length (Baked) | Up to 800,000 impressions |
| Developer | Standard alkaline thermal developer |
| Processing Latitude | ±2°C / ±15s tolerance |
| Safelight | Daylight safe |
| Storage Conditions | 15–25°C, 30–60% RH |
| Compatibility | Compatible with Kodak, Screen, Heidelberg, Agfa, Cron, and all mainstream thermal CTP systems |
Key Features
- Double-layer Coating Structure ：The upper imaging layer ensures precise dot reproduction, while the lower protective layer enhances plate durability and chemical resistance.
- High Resolution & Dot Sharpness ：Supports 1%–99% dot reproduction at 250 lpi, guaranteeing high-definition printing with smooth tonal transitions.
- Extended Run Length ：Provides up to 300,000 impressions without baking and 800,000 impressions after baking, suitable for long-run commercial and packaging jobs.
- Stable Processing Performance ：Wide processing latitude allows consistent development even with minor temperature or time variations.
- High Chemical & Scratch Resistance ：Reinforced aluminum base and strong surface coating prevent scratching, oxidation, and press damage.
Recommended Applications
Commercial Printing
Ideal for magazines, brochures, catalogs, and high-quality advertising materials requiring detailed image reproduction.Packaging Printing
High mechanical strength and long run length make it perfect for carton, label, and flexible packaging jobs.Book and Publication Printing
Ensures stable performance in continuous, long-term plate use.Trade and Service Printing Providers
Suitable for quick turnaround operations needing consistent imaging and minimal maintenance.
Frequently Asked Questions
What is the difference between a double-layer and single-layer thermal CTP plate?
The double-layer plate has a protective undercoat that improves durability, chemical resistance, and run length, while maintaining superior imaging quality.
Is baking required for long-run jobs?
Baking is recommended for runs exceeding 300,000 impressions to achieve up to 800,000 impressions and enhance press life.
Can it be processed with standard thermal developers?
Yes, it is compatible with all standard alkaline thermal CTP developers, with stable results under normal processing conditions.
How does the dual-layer coating improve scratch resistance?
The protective base layer prevents mechanical wear during plate mounting and press operation, reducing downtime and plate waste.
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