A Complete Guide to High-speed Flexo Press

A unit-type flexo press is a modular printing press that provides great flexibility and versatility in printing applications. It is widely used in the packaging and printing industry due to its excellent print quality, high production speed, and cost-effectiveness. In this article, we will discuss the basics of high-speed flexo press, its advantages, working principle, application, maintenance, and a brief introduction to EVER-POWER, a leading manufacturer of flexo presses.

What is a Unit-type Flexo Press?

A unit-type flexo press is a type of printing press used in the flexographic printing process. It is designed with modular units that can be combined and configured according to specific printing requirements. Each unit of the press consists of various components, such as a plate cylinder, anilox roller, inking system, and impression cylinder, which work together to transfer ink onto the printing substrate.

Advantages of High-speed Flexo Press

• Versatility – Allows customization and configuration based on printing process, substrate, and colors required.
• High Printing Quality – Achieves excellent print quality comparable to other printing methods.
• Speed and Efficiency – Known for high production speeds and reduced downtime.
• Cost-Effectiveness – Generally considered a cost-effective solution for medium to high-volume printing.
• Wide Substrate Compatibility – Compatible with a variety of substrates, including paper, cardboard, films, labels, and flexible packaging materials.
• Environmentally Friendly – Made significant strides in reducing environmental impact.
• Inline Finishing Options – Equipped with various inline finishing options, such as laminating, die-cutting, embossing, and varnishing.
• Continuous Innovation – Benefits from ongoing advancements in technology, materials, and processes.

Working Principle of High-speed Flexo Press

1. Plate Cylinder – Holds the image or artwork to be printed.
2. Inking System – Transfers ink to the plate cylinder.
3. Impression Cylinder – Receives the substrate to be printed.
4. Drying System – Evaporates solvents or cures the ink after transfer to substrate.
5. Repeatable Units – Designed with repeatable units, which can be combined to achieve multi-color printing.

Application of High-speed Flexo Press

High-speed flexo press is widely used in the following industries and products:

• Flexible Packaging, such as food packaging, pouches, bags, wrappers, and labels.
• Corrugated Packaging, used in packaging boxes and containers.
• Labels and Tags, used in retail, logistics, and manufacturing.
• Folding Cartons, used in the packaging of consumer goods, cosmetics, pharmaceuticals, and other products.
• Paper Products, such as newspapers, magazines, catalogs, books, and stationery.

How to Choose High-speed Flexo Press?

The following factors should be considered before choosing a high-speed flexo press:

1. Printing Requirements.
2. Flexibility and Customization.
3. Print Quality and Registration.
4. Production Speed and Efficiency.
5. Substrate Compatibility.
6. Inking and Drying Systems.
7. Support and Service.
8. Budget and Return on Investment.
9. Industry Reputation and Reviews.
10. Future Expansion and Upgrades.

Common Problems and Solutions

The following are the most common problems that may occur during the use of high-speed flexo press and their solutions:

1. Ink Smearing or Blurring:
   • Solution: Ensure proper ink viscosity and consistency. Adjust the doctor blade pressure to achieve a clean and even ink transfer. Verify that the anilox roller is clean and free from dried ink or debris. Check for excessive plate wear or damage and replace if necessary. Optimize drying parameters to ensure proper ink curing.
2. Registration Issues:
   • Solution: Verify that all mechanical adjustments, such as gear settings and tension controls, are properly calibrated. Check for worn or damaged gears, cylinders, or rollers and replace as needed. Ensure the plate cylinder and substrate tension are correctly set. Align the printing plates accurately and securely on the plate cylinder. Regularly clean and maintain the registration sensors and control systems.

Installation and Maintenance

The following are the basic steps involved in installing and maintaining high-speed flexo press:

Installation:

1. Site Preparation.
2. Unpacking and Assembly.
3. Electrical and Control System Setup.
4. Testing and Calibration.

Maintenance:

1. Regular Cleaning.
2. Lubrication.
3. Inspection and Replacement.

About EVER-POWER

EVER-POWER is a leading manufacturer of flexo presses and other printing and packaging equipment. It is dedicated to the research and development of printing and packaging equipment, precision coating equipment, and special electromechanical equipment. EVER-POWER has a core technology group including tension system coupling modeling and decoupling control technology, equipment intelligent control technology, precision coating composite technology, high-speed high-definition printing technology, coating curing and solvent residue control technology, and multi material adaptive winding technology. It has obtained over 239 national patents, more than 10 national high-tech achievement awards. EVER-POWER has obtained ISO9001:2015 international quality system certification, SGS certification, and EU CE safety certification. It provides a complete after-sales service system.

Questions and Answers:

1. What is a unit-type flexo press?

Answer: A unit-type flexo press is a modular printing press that provides great flexibility and versatility in printing applications.

2. What are the advantages of high-speed flexo press?

Answer: The advantages of high-speed flexo press include versatility, high printing quality, speed and efficiency, cost-effectiveness, wide substrate compatibility, environmentally friendly, inline finishing options, and continuous innovation.

3. What is the working principle of high-speed flexo press?

Answer: The working principle of high-speed flexo press involves the plate cylinder, inking system, impression cylinder, drying system, and repeatable units.

4. Where is high-speed flexo press commonly used?

Answer: High-speed flexo press is commonly used in flexible packaging, corrugated packaging, labels and tags, folding cartons, and paper products.

5. How to choose a high-speed flexo press?

Answer: Factors such as printing requirements, flexibility and customization, print quality and registration, production speed and efficiency, substrate compatibility, inking and drying systems, support and service, budget and return on investment, industry reputation and reviews, and future expansion and upgrades should be considered before choosing a high-speed flexo press.

Conclusion

High-speed flexo press is a versatile, cost-effective, and environmentally friendly printing solution for various industries and products. It offers excellent print quality, high production speed, and wide substrate compatibility. EVER-POWER is a leading manufacturer of high-speed flexo press and other printing and packaging equipment, providing innovative solutions and complete after-sales service. With proper installation and maintenance, high-speed flexo press can deliver consistent and high-quality prints, contributing to the success of printing and packaging businesses.