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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.


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.