Paper, Packaging & Printing

In the modern commercial printing industry, efficiency and precision are essential to business competitiveness. With the widespread adoption of Computer-to-Plate technology, positive thermal CTP plates have become a key consumable for high-quality printing applications such as catalogs, packaging, newspapers, and magazines, thanks to their excellent dot reproduction and stable press durability. As a leading supplier of printing consumables, we are committed to providing high-performance thermal plates with stable physical properties and outstanding chemical resistance. What Is a Positive Thermal CTP Plate? A positive thermal CTP plate is a printing plate that is directly imaged by a thermal laser, usually an 830 nm infrared laser. During exposure, the coating in the laser-exposed area undergoes a chemical change and is removed by the developer, forming hydrophilic and oleophilic image/non-image areas for printing image transfer. Product Structure and Working Principle 1. Structure A positive thermal CTP plate usually consists of the following layers: Aluminum Substrate: High-purity electrolytic aluminum, providing good mechanical strength and dimensional stability Anodized Layer: Enhances press durability and hydrophilicity Photosensitive Coating / Thermal Layer: Sensitive to infrared laser and enables image conversion Protective Layer: Prevents scratches and contamination during transportation and storage 2. Imaging Principle When the laser beam of the CTP device irradiates the plate surface: The photosensitive layer absorbs thermal energy, causing molecular structure changes The exposed area dissolves in the developer The unexposed area remains, forming the printing image This process eliminates the need for traditional exposure films, greatly improving efficiency and reducing errors. Why Choose Positive Thermal CTP Plates? 1. Extremely High Imaging Resolution Using advanced multi-layer coating technology, the plate supports 1%–99% dot reproduction. Whether it is delicate portrait skin tones or complex anti- counterfeiting lines, the plate can reproduce details accurately and meet printing requirements of 200 LPI or even higher screen rulings. 2. High Plate-Making Stability and Wide Operating Latitude The imaging process of positive thermal plates is almost unaffected by changes in ambient temperature and humidity. With a wide development latitude, the plate has good tolerance to fluctuations in developer concentration, temperature, and development time. For printing companies with variable production environments, this means a lower plate waste rate and more stable production output. 3. Daylight Operation, Convenient and Safe Unlike traditional photosensitive plates that require strict darkroom conditions, positive thermal CTP plates are insensitive to indoor yellow safe light and can be operated under daylight conditions. This greatly simplifies the environmental requirements of the plate-making workshop, lowers the operating threshold, and improves work efficiency and safety. 4. High Press Run Length, Suitable for Medium and Long Runs Commercial printing orders often involve medium and long-run jobs such as books, catalogs, and promotional leaflets. High-quality positive thermal CTP plates usually offer a press run length of 100,000–150,000 impressions without baking. After baking, the run length can be increased to over 500,000 impressions, fully meeting the requirements of large-scale commercial printing production. 5. Environmentally Friendly and in Line with Sustainable Development Positive thermal CTP plates use water-soluble developers and contain no toxic or harmful solvents. Waste liquid treatment is simple. Compared with traditional PS plates and some photosensitive plates, they require fewer chemicals and generate waste that is easier to dispose of in an environmentally friendly way, meeting the green development trend of the printing industry. 6. Broad Machine Compatibility After strict testing, our positive thermal plates are fully compatible with mainstream CTP platesetters on the market, including: Kodak full series Heidelberg Topsetter / Suprasetter And other mainstream thermal CTP platesetters

Minimum Order: 2000

In the modern printing industry, CTP (Computer to Plate) technology has become the mainstream plate-making method. Among them, Double-Layer Thermal CTP Plates are widely used in commercial printing, packaging printing, and publication printing due to their high stability, excellent imaging quality, and good printing durability. To meet different printing requirements, 0.15mm and 0.30mm double-layer thermal CTP plates have become preferred products for many printing plants and traders thanks to their structural advantages and stable performance. 0.15mm Thickness: Mainly used for small and medium-sized offset printing machines, form printing, and label printing. Its excellent flexibility makes plate mounting easier and provides better fitting performance. 0.30mm Thickness: Preferred for commercial web presses, large poster printing, and packaging carton printing. The high-strength aluminum alloy substrate ensures dimensional stability during large-format printing. Technical Parameters Photosensitive Wavelength: 830nm Thickness: 0.15mm, 0.20mm, 0.25mm, 0.30mm, 0.40mm Aluminum Plate: 1050, 1060, 1070 Exposure Energy: 100 - 120 mJ/cm² Resolution: 1% - 99% @ 200 LPI Laser Energy: 100 - 140 mJ/cm² Run Length: 100,000 - 150,000 impressions (unbaked) / >500,000 impressions (after baking) Developing Temperature: 23 - 25°C Surface Roughness: Optimized electrochemical treatment Development Method: Thermal developer Product Features of Double-Layer Thermal CTP Plates Excellent Run Length The double-layer coating gives the printing plate extremely high durability. Under normal printing conditions, it offers a high run length and maintains consistent print quality even during long-run commercial printing. Excellent Dot Reproduction The plate has a wide development latitude and can accurately reproduce fine dots from 1% to 99%. Whether for very fine text or large-area high-quality flat screens, it maintains sharp edges without dot loss or plate blinding. Fast Sensitivity and High Production Efficiency Optimized for 830nm thermal plate setters, the high-sensitivity formula shortens exposure time per plate. It performs excellently on high-speed plate- making machines and significantly improves daily output in the plate-making workshop. High Resolution and Vivid Colors With multi-layer graining technology and double-layer coating technology, the plate meets high-end printing quality requirements and ensures full, vivid color performance. Compatible with UV Ink Its strong coating structure provides excellent chemical and scratch resistance. It can be compatible with UV ink without baking, making it especially suitable for high-end packaging printing. No Preheating Required for Some Models Many double-layer thermal plates are positive-working plates and do not require preheating, simplifying the workflow. Long Shelf Life High-quality double-layer thermal plates usually have a long shelf life, such as more than 18 months. Wide Application Fields With stable chemical performance and physical specifications, this series of CTP plates is widely used in: Book and Magazine Printing: Ensures clear text and stable performance during long-run printing. Packaging Color Boxes: Performs steadily on heavy paper and complex image processing. UV Printing: Specially reinforced double-layer coating provides natural resistance to UV ink. Commercial Quick Printing: The 0.15mm specification can be quickly mounted on the machine, meeting the needs of short-run quick printing. Why Choose Hongchang Aluminum? Advanced Production Lines We have multiple fully automatic high-speed CTP coating production lines. From aluminum coil uncoiling, electrochemical treatment, graining, anodizing to final photosensitive layer coating, the entire process is completed in a constant-temperature, constant-humidity, class 10,000 dust-free workshop. Stable Supply Chain With sufficient monthly production capacity, we can provide stable supply for OEM and long-term orders, ensuring no shortage during peak seasons. Strict Quality Control System Each batch is tested for more than ten items, including photosensitivity, grayscale, abrasion resistance, and wetting performance. Inspection reports are available. Professional Technical Service We provide on-machine testing support, parameter adjustment guidance, and remote/on-site troubleshooting assistance to ensure the best match between plates and equipment. High Cost Performance While ensuring quality comparable to first-tier brands, we help customers reduce plate procurement costs by 15% - 25%. Global Logistics We have rich international trade experience and are familiar with export procedures in markets such as the Middle East, Southeast Asia, Central Asia, and Africa. We support various trade terms, including FOB, CIF, CFR, etc. Packaging and Storage Packaging Method: Moisture-proof vacuum packaging + pressure-resistant cartons/wooden pallets, suitable for container loading and cross-border logistics. Storage Conditions: Store in a dark and dry environment with relative humidity of 40% - 60% and temperature of 10 - 25°C. Shelf life is 18 months. Size Customization: Standard sizes such as 1030×790mm, 830×645mm, etc., are available. Non-standard sizes can also be customized. FAQ Q1: What is the difference between double-layer CTP plates and single-layer plates? A: Double-layer plates add a protective layer on the photosensitive layer, improving durability and anti-contamination performance. They are suitable for high-intensity printing applications. Q2: How to choose between 0.15mm and 0.30mm plates? A: 0.15mm is suitable for film printing and lightweight applications; 0.30mm is suitable for heavy-duty printing requiring long service life and high wear resistance. Q3: What is the storage period of the plates? A: Under sealed packaging, the plates can be stored for 24 months. Please keep them in a dry and ventilated place. Q: When can I get a quotation? A: We will reply within 24 hours after receiving your inquiry. If you are in urgent need, you can also call us directly. Q: Can I request samples for testing? A: We can provide 8-12 sheets of double-layer thermal CTP offset printing plate samples for free. You only need to pay the freight cost. Q: What is the production lead time for this product? A: Usually, it takes two to three weeks after order confirmation.

Minimum Order: 2000

In the field of airline catering packaging, aluminum foil meal trays have become the mainstream choice for in-flight meals due to their lightweight, hygienic, and recyclable advantages. The key factor that determines the quality of an aluminum foil meal tray lies in the aluminum foil substrate used. At present, in the high-end wrinkle-free meal tray sector, 8006 aluminum alloy container foil is gradually replacing traditional 8011 and 3003 aluminum foil with its superior forming performance, becoming the preferred material solution for airline meal trays. As a professional aluminum foil substrate supplier, we now provide stable supplies of 8006 aluminum foil jumbo rolls for airline meal trays to aluminum foil container manufacturers worldwide. The material is suitable for high-speed stamping equipment and supports customers’ secondary slitting and deep processing. Why Use 8006 Aluminum Foil for Airline Meal Trays? Airline meal trays are different from ordinary takeaway food containers. They have extremely strict requirements for surface flatness and forming consistency. Airline meals are usually produced in large-scale standardized batches, with high requirements for sealing performance and appearance quality. 8006 aluminum foil is a specialized container foil product developed precisely to meet these requirements. Compared with conventional 8011 aluminum foil and 3003 aluminum foil, 8006 aluminum foil has the following core advantages: 1. Wrinkle-Free Forming and Smooth Edges 8006 aluminum foil is produced by a hot-rolling process. Its elongation and cupping value are significantly better than those of 8011 and 3003 aluminum foil. During stamping and forming, the material flows more evenly. After forming, the edges are wrinkle-free, and the appearance is flat and smooth. This is exactly the key quality feature required for airline meal trays. 2. Higher Strength and Stable Forming The tensile strength of 8006 aluminum foil can reach 123–135 MPa, which is about 10 MPa higher than 8011 aluminum foil. Higher strength means that, at the same thickness, meal trays made from 8006 aluminum foil are tougher and less likely to deform during transportation and heating. 3. Food Grade Safety and Direct Heating The product meets water-brushing Grade A standards, with a clean surface and no oil residue, fully complying with food contact material safety standards. Aluminum foil itself is non-toxic and odorless, and can be directly used in heating scenarios such as ovens and microwave ovens. It does not produce harmful substances after heating. 4. Excellent Barrier Performance Aluminum foil can effectively block air, moisture, and light. After sealing, it can fully protect the original flavor of food and extend the shelf life of food products. 5. Excellent Surface Quality The aluminum foil surface is clean, free from oil stains, with few pinholes and uniform thickness, ensuring stable subsequent processes such as coating, embossing, and printing. 8006 Aluminum Foil Specifications Alloy Grade:8006 Temper:O temper, H14, H16, H18, H22, H24, etc. Thickness Range:0.015mm – 0.20mm Width Range:100mm – 1600mm Coil Diameter:Customized according to customer requirements Surface Treatment:Bright surface, double-sided bright Inner Diameter:76mm / 152mm Pinhole Control:Strictly controlled, suitable for food-grade applications MOQ:1–3 tons Core Advantages:DC material, pinhole-free, flat shape Application Scenarios 8006 aluminum foil jumbo rolls are widely used in the following fields: Airline Meal Trays Wrinkle-free containers for in-flight meals, with an attractive appearance after stamping. Takeaway Food Containers High-end wrinkle-free meal trays and sealed packaging containers. Food Baking Containers Cake trays, baking pans, and other baking containers. Industrial Sealing Packaging High-barrier moisture-proof sealing packaging.

Minimum Order: 1 bags

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