Ronsein | High Quality CTP & PS Offset Printing Plates
Negative Thermal CTP Plate
Negative thermal CTP plate combining fast imaging with excellent press stability.
Overview
A negative thermal CTP plate combining fast imaging with excellent press stability and resistance. Suited to high-volume commercial, newspaper and direct-mail production.
Request a quote for this plateKey features
Negative thermal imaging
A negative-working thermal plate exposes fast and holds dots firmly, raising throughput on high-volume lines.
High photospeed
Optimized thermal sensitivity shortens exposure and lifts plate-setter output.
Strong press stability
Holds ink-water balance and dot shape through long runs, cutting makeready and waste.
Long run length
A durable anodized surface and robust coating deliver long, consistent runs on press.
Durable anodic-oxidized layer
The durable oxidized surface formed by anodizing the aluminum base resists corrosion and retouching medium, markedly extending plate run length.
Plate structure
Layer technology
Specifications
| Brand | Ronsein-TTN |
|---|---|
| Label | Ronsein label / no label / customer label |
| Gauge | 0.15 – 0.40 mm |
| Coating | Negative thermal (solvent-free) |
| Spectral sensitivity | 800 – 850 nm |
| Exposure energy | 110 – 150 mJ/cm² |
| Resolution | 1% – 99% at 200 lpi |
| Ugra reading | 13-step scale / 3 steps clear |
| Run length | 150,000+ |
| Recommended developer | Solvent-free thermal developer |
|---|---|
| Protection gum | Thermal protection gum |
| Developing temperature | 23 – 28 °C |
| Developing time | 20 – 30 s |
| Developer concentration | Powder : liquid = 1:4 (auto) / 1:5 (manual) |
| Baking temperature | 230 – 260 °C |
|---|---|
| Baking time | 6 – 10 min |
| Run length after baking | 500,000 – 1,000,000 |
| Safe light | Daylight / white light |
|---|---|
| Shelf life | 12 months (10 – 30 °C, 40 – 70% RH) |
| Package | 0.15 mm: 100 sheets/carton · 0.30 mm: 50 sheets/carton |
Applications
FAQ
What is a thermal negative CTP plate?
A thermal negative plate hardens where the 830 nm laser exposes it, producing a robust imaged area. It suits high-solidity and long-run work where image durability matters.
Which thermal platesetters support CTP-TN?
Any 830 nm thermal CTP engines (Screen, Kodak, Agfa, Lüscher-class) can image CTP-TN plates.
How are CTP-TN plates processed and baked?
Develop thermally at 22–24°C for 25–30 s. Baking at 220–230°C (stand) or 240°C (online) increases run length toward ~1,000,000 impressions.
Related products
Positive PS Plate
Conventional pre-sensitized plate with a unique air-evacuation layer for fast vacuum and clean dot reproduction.
Negative PS Plate
Negative-working PS plate developed with weak-alkali chemistry for fast exposure and minimal retouching.
Positive Thermal CTP Plate
Thermal CTP plate runnable under white light, no pre-heat, high resolution and long run length.
UV-Ink Thermal CTP Plate
Thermal CTP engineered for UV inks — high resistance to UV-curing chemistry and scratch resistance.