Positive PS Plate for Sale (0.15–0.40mm), Suitable for Newspaper / Magazine

What is a Positive PS Plate?

A Positive PS Plate is a key material used in lithographic offset printing. It forms the
printing surface through UV exposure and developing processes. The core principle
relies on diazonaphthoquinone (DNQ) photosensitive agents, which undergo
photodecomposition under UV light, producing soluble compounds. During
development, the exposed areas dissolve to form hydrophilic blank regions, while the
unexposed areas remain oleophilic to create image and text areas.

Core Features of Positive PS Plate

1.High Printing Durability
Thickness up to 0.40mm increases plate rigidity, achieving 100,000–150,000
impressions, ideal for high-volume commercial publishing.

2.High Imaging Accuracy
Produces sharp image edges and excellent dot reproduction, ensuring fine details in
both text and graphics.

3.Excellent Registration Precision
Plate thickness and rigidity guarantee image stability during high-speed press runs,
minimizing misregistration, suitable for multi-color printing.

4.Wide Printing Adaptability
Compatible with various papers (coated, matte, art paper), inks, and fountain solutions,
meeting diverse commercial printing demands.

5.Eco-friendly & Cost-effective
Developer solution generates low pollution, with waste liquid easy to treat.


Technical Parameters

Plate Type: Positive PS Plate
Photosensitive Wavelength: 320–450 nm
Sensitizing Energy: ~30 sec, about 20 pulses
Developing Time: 20–40 sec
Resolving Power: 2–98%
Press Run: 50,000–200,000 impressions (Unbaked)
Safety Light: Yellow light


Application Fields

1.Book Printing
Suitable for textbooks, reference books, hardcover publications requiring high text
clarity and image reproduction.

2.Magazines & Periodicals
Perfect for color magazines, lifestyle journals, fashion publications with high precision
multi-color printing.

3.Newspaper Printing
Ensures long-term stable quality, with sharp text, accurate images, and consistent
color.

4.Commercial Promotional Printing
Used in high-end catalogs, brochures, and advertisements requiring fine detail and
high-resolution output.


Company Information

Our main products include UV Plates, CTP Plates (Thermal CTP, Double-coated CTP,
Violet CTP, Processless Plates), CTcP Plates, Printing Films, and UV Inks.

Advanced electrochemical graining, anodizing, and coating technology ensure top-
quality plate base and coating.

High-quality coating guarantees fast imaging, rapid development, and perfect dot
reproduction.

Strict QC ensures consistent plate performance.

100% compatibility with mainstream plate setters and presses is guaranteed.

If you have any questions about compatibility of our PS/CTP plates with your prepress
system, please contact us – we are here to serve you.


Packaging & Storage

Storage Conditions: 5–30°C, RH ≤ 65%
Stacking Height: ≤ 1.2m
Suitable for 405nm CTcP Printing Systems & Developers.

Minimum Order: 2000 square metres

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