The thermal CTP plate commonly used in commercial printing is a technology that transfers printed graphic information through heat-sensitive materials. Thermal CTP plate mainly consists of three parts: photosensitive layer, aluminum base material and back coating. The working principle of thermal CTP plate is to transfer the information of digital layout directly to the plate through CTP equipment, and then print it through the printing machine. In the CTP equipment, the photographic layer on the surface of the printing plate is irradiated by a laser beam, which makes the photographic layer undergoes a chemical change and forms the graphic information. Then through heat treatment, the photographic information of the photographic layer is transferred to the aluminum base material to form the final printing plate.

The main technical parameters of thermal ctp plate for commercial printing include:

Light-sensitive wavelength: 800nm-830nm

Light-sensitive energy: 120-130mj/cm².

Resolution: 200lpi (1~99%)

Printing resistance: Maximum 100,000 prints (UV ink) or maximum 300,000 prints (ordinary ink), the specific printing resistance varies with printing conditions and imaging content.

Features and Advantages of thermal ctp plate for commercial printing:

- Good imaging quality:

Thermal CTP plate adopts infrared laser exposure, which can accurately generate graphic information on the surface of the plate, with high imaging quality and strong detail reproduction ability.

Good dot reproducibility, high resolution, sharp and clear edges of dots, easy to achieve ink-water balance when printing, with good printability.

- Easy to operate:

Thermal CTP plate has low sensitivity to natural light and can be operated under bright room conditions without dark room environment.

The exposure process is simple and fast, without complex chemical treatment process, improving the efficiency of plate making.

- Environmentally friendly:

Compared with traditional plate making technology, thermal CTP plate reduces the use of chemicals and waste liquid discharge, reducing the pollution to the environment.

- Compatible:

Thermal CTP plates are usually compatible with most developing fluids on the market, making it easy for users to choose and use.

- High print resistance:

After baking, thermal CTP plates can have a print resistance of more than 1 million prints (depending on the specific conditions and ink types), which meets the demand for high output in commercial printing.

- Good stability:

In the exposure process of thermal CTP plate, only the area that reaches the initial thermal energy threshold will react, and the thermal energy higher than the initial threshold will not change the shape of the dot, thus ensuring the stability and consistency of the plate quality.

In the field of commercial printing, thermal CTP plates are widely used in the production of various printed materials, such as books, albums, magazines, posters, leaflets and so on. Its high quality imaging effect and stable plate making performance have been widely recognized by users.