Ronsein | High Quality CTP & PS Offset Printing Plates
Negative CTCP Plate
Negative CTCP plate offering cost-efficient computer-to-plate with conventional UV setters.
Overview
A negative CTCP plate offering cost-efficient computer-to-plate with conventional UV setters. A practical bridge for printers moving from PS to digital platemaking.
Request a quote for this plateKey features
Economical bridge from PS to CTP
A negative CTCP plate runs on traditional UV setters, letting printers step into digital platemaking at low cost.
High photospeed
Optimized UV sensitivity shortens exposure and raises throughput on existing setters.
Sharp dot fidelity
Fine grains hold small highlight and shadow dots, keeping tone reproduction stable across the run.
Balanced hydrophilic layer
The hydrophilic surface reaches ink-water balance quickly, reducing dampening and paper waste.
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-UCN |
|---|---|
| Label | Ronsein label / no label / customer label |
| Gauge | 0.15 – 0.40 mm |
| Coating | Negative UV-CTCP |
| Spectral sensitivity | 360 – 450 nm |
| Exposure energy | 8 – 25 mJ/cm² (UV) |
| Resolution | 2% – 98% at 200 lpi |
| Ugra reading | 13-step scale / 3 steps clear |
| Run length | 100,000+ |
| Recommended developer | Weak-alkali developer |
|---|---|
| Protection gum | PS plate protection gum |
| Developing temperature | 21 – 25 °C |
| Developing time | 20 – 30 s |
| Developer concentration | Powder : liquid = 1:6 (auto) / 1:7 (manual) |
| Baking temperature | 220 – 250 °C |
|---|---|
| Baking time | 5 – 8 min |
| Run length after baking | 300,000 – 500,000 |
| Safe light | Yellow |
|---|---|
| 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 negative CTCP plate?
A negative CTCP plate hardens on UV (405 nm) exposure, giving strong imaged areas and good run-length for shops using UV platesetters.
Which platesetters are supported?
UV 405 nm CTCP engines such as BasysPrint and Luscher-class UV setters can image CTCP-N plates.
How should CTCP-N plates be handled and processed?
Process with a matched UV/CTCP developer per the bulletin, store at 22–24°C, and minimize exposure to ambient UV light before processing.
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