As a leading exporter and manufacturer of CTP plates, HC Aluminum leverages its core aluminum-based processing technology and coating formulation expertise to launch long shelf life thermal CTP plates double layer. These CTP plates precisely address the core needs of high end printing for plate stability, durability, and ease of storage, while also balancing digital production efficiency with environmentally friendly trends, making them a preferred solution for the mid-to-high-end printing market.

The longer shelf life thermal CTP plate double layer adopt an "aluminum-based + functional dual-layer coating" composite structure, with each layer working synergistically to achieve performance breakthroughs. The substrate uses HC's proprietary electrolytic grinding and anodizing aluminum base, with multiple precision processes controlling surface roughness and flatness, providing a solid foundation for coating adhesion. The dual-layer coating uses a self-developed formula:

- Substrate layer: Utilizes high-quality aluminum alloy materials to ensure strength and ductility, giving the plate excellent physical properties.

- Heat-sensitive photosensitive layer: Utilizing linear phenolic resin as the main film-forming component, combined with cyanine infrared absorbers and melamine derivative crosslinking agents, it precisely responds to 800-850nm infrared lasers. After exposure, it rapidly undergoes a crosslinking and curing reaction, forming high-fidelity image areas. The addition of coloring dyes ensures clear and discernible image contrast.

- Alkali-soluble resin layer: Located between the aluminum base and the photosensitive layer, it contains modified acrylic copolymers and specialized stabilizers. The coating weight is controlled at 0.5-1.0 g/m², ensuring complete dissolution of unexposed areas during development while also isolating the photosensitive layer from ambient moisture and oxygen, inhibiting dark reactions in the photosensitive layer, and extending shelf life.

The long shelf life thermal CTP plates double layer has the following significant characteristics:

- High photosensitivity:

Compared to traditional CTP plates, longer shelf life thermal CTP plate double layer has a significantly increased photosensitivity speed, enabling exposure in a shorter time, thereby improving printing efficiency.

- High resolution:

The double layer design of the heat-sensitive photosensitive agent significantly improves the clarity and detail of printed images, achieving a resolution of 1-99%@200lpi, supporting 20-micron frequency-modulated screening, and a sensitivity of 110mJ/cm². It can even achieve stable printing with a minimum dot gain of 0.5%.

- Long term stability:

Thanks to a special protective layer, the long shelf life thermal CTP plates double layer maintains excellent performance under various environmental conditions, with a service life of over two years.

- Print durability:

Up to 300,000 impressions in thermosetting rotary printing and 30,000 impressions in UV ink applications, with excellent scratch resistance.

Based on global customer application feedback, the advantages of longer shelf life thermal CTP plate double layer permeate the entire process of plate making, printing, and storage. Technically, through optimized molecular structure of the double layer coating, the problem of traditional negative plate storage and retention is solved, increasing development tolerance by 40% and reducing scrap rates due to improper development. In terms of cost control, no additional baking process is required, it is compatible with mainstream thermal CTP plate-making machines, requires no modification to existing processes, and reduces the consumption of developing chemicals and wastewater treatment costs, embodying the concept of green production. For export applications, the longer shelf life thermal CTP plate double layer uses moisture-proof and anti-static packaging, adapting to extreme transportation environments such as high temperature and high humidity. Verified by customers on six continents worldwide, it maintains stable imaging performance even after six months of storage in tropical regions, breaking geographical storage limitations.

Leveraging its superior overall performance, the long shelf life thermal CTP plates double layer is widely used in the following industries:

Commercial Printing: Including advertising, corporate promotional materials, brochures, etc., meeting the demands for high-quality and high-efficiency printing.

Packaging Printing: Ensuring clear and vivid graphics and text on packaging in the food and beverage industries.

Publication Printing: Achieving high-resolution printing effects in book and magazine printing, meeting consumers' visual needs.

Through years of experience in the printing industry, we have observed that companies, when selecting printing plates, not only focus on price but also place greater emphasis on performance stability and return on investment. The longer shelf life thermal CTP plate double layer was developed in this context. By adopting more advanced materials and improving production processes, we ensure that our products remain competitive in a dynamically changing market environment. Long shelf life thermal double layer CTP plates, with their high-quality structural design and unique technological advantages, have brought about a new revolution in the printing industry. As an exporter of HC Aluminum, we are committed to providing our customers with superior products and services, helping them stand out in a highly competitive market.