You are here: Home / Blogs / Knowledge / CTS Plate Making Laser Module: The "Digital Plate-Making Core" for Printing & PV Screen Printing – Principle Revealed
CTS Plate Making Laser Module: The "Digital Plate-Making Core" for Printing & PV Screen Printing – Principle Revealed
Views: 0 Author: Site Editor Publish Time: 2026-01-03 Origin: Site
In two core fields—printing plate-making and photovoltaic (PV) screen printing—the CTS plate making laser Module is gradually replacing the traditional film-based plate-making process. It has become the industry mainstream due to its advantages of high precision, high efficiency, and low cost.
Core Working Principle of the CTS Plate Making Laser Module
The core principle of the CTS plate making laser Module lies in the closed-loop collaboration of "digital signal → laser control → photosensitive imaging." Through the coordination of three core components, high-precision plate-making is achieved. The complete workflow consists of four interlocking stages, ensuring imaging quality at every step:
1. Digital File Processing: Precisely Interpreting Plate-Making Requirements
Before plate-making, design files such as printing patterns and PV cell silver paste circuits are imported into the system and processed by RIP (Raster Image Processor). The core function of RIP is to convert complex graphic/text and circuit information into dot matrix image data recognizable by the laser module, while setting key parameters such as resolution. This step is equivalent to drawing a precise "work map" for the laser, ensuring every laser-irradiated point fully matches the design requirements.
As the core working stage of the plate making laser module, it achieves precise light control mainly through the combination of "laser light source + digital micromirror device + high-precision optical lens." Currently, mainstream modules adopt 405nm wavelength violet laser diodes with optional power ratings (20W, 25W, 30W, etc.), which can quickly cure SBQ-type photosensitive materials and deliver sharper pattern edges.
3. Photosensitive Imaging: Accurate "Reproduction" of Screen Patterns
After the screen plate (pre-coated with photosensitive emulsion) receives laser irradiation, the emulsion undergoes a photochemical curing reaction:
Laser-irradiated areas: The emulsion cures and adheres tightly to the screen plate, blocking the mesh holes.
Non-irradiated areas: The emulsion remains uncured.
The entire exposure process eliminates the need for traditional film as an intermediate medium, avoiding precision errors caused by film wear or expansion/contraction. It also skips the vacuum lamination step, further reducing the risk of screen plate deformation.
After exposure, the screen plate undergoes post-processing procedures including developing, rinsing, and drying/curing:
Uncured emulsion is rinsed away, exposing transparent mesh holes.
Cured emulsion forms stable "ink-blocking walls."
The final screen plate features pattern precision identical to the laser-projected dot matrix, with sharp line edges and high dot fidelity. It can be directly used in printing or PV screen printing production.
Summary
Compared with the traditional film-based plate-making process, the principle innovation of the CTS plate making laser Module brings significant advantages:
Cost Reduction: Eliminates expenses for film production, storage, and development, saving large enterprises hundreds of thousands of yuan annually in consumables and labor costs.
Efficiency Improvement: Compresses the multi-step traditional plate-making process into a single workflow of "digital file → laser exposure → post-processing," drastically reducing preparation time.
Stable Precision: Avoids errors from intermediate links such as film use and vacuum lamination.
English
