CTcP Technology Introduction

CTcP is the English acronym for Computertoconventionalplate. It refers to computer-to-plate making on a conventional PS plate, which is a form of CTP process. The technology uses a 360-450nm UV light source to digitally expose traditional PS plates.

As far as the current situation is concerned, CTcP platesetters generally use two types of technology:

One is the Digital Screen Imaging Technology (DSI) based on Digital Micromirror Device (DMD). The UV-Setter platemaking machine series produced by BasysPrint is based on this technology.

One is the use of numerical control light valve to control the laser output of the track fiber to achieve the exposure technology, Danish Purop-Eskofot's Dicon platemaking machine that uses this technology.

Judging from the current state of development, the CTcP platesetter using DMD technology from BasysPrint has achieved remarkable results and has occupied the majority of the CTcP platesetter market. Therefore, the following is the introduction of the working principle of CTcP with the example of Germany's BasysPrint.

The core of the UV-setter plate-making system of BasysPrint is digital screen imaging technology and micro-mirror chip technology. Through the combination of the two, it has successfully realized the imaging of high-efficiency ultraviolet light source to generate clear dot images. technology.

The system uses a UV light source with a spectral range of 360-450 nm. The specific working principle is: the ultraviolet light emitted from the light source is converged onto the DMD (digital micromirror device), and is imaged on the plate by the refraction of the DMD.

Digital Micromirror Devices (DMDs) were developed by Texas Instruments, which is an acronym for Digital Micromirror Device. This technology is also known as Digital Light Processing Technology. There are 1.3 million independently controllable micro-optic mirrors in an area of ​​2 cm2. In the imaging process, the light irradiated on the micromirror is projected onto the plate material through the lens, or is not projected, and is not exposed on the plate material. Finally, an image consisting of halftone dots is generated on the plate.