What inks work best with modern flexo printers?

When considering the purchase of a flexographic (flexo) printer, it's crucial to understand various aspects to ensure the equipment aligns with your production needs and delivers optimal performance. Below are key questions and answers to guide your decision-making process:

1. What Are the Different Types of Flexo Printing Machines?

Central Impression (CI) Presses

CI presses feature a central drum that holds all substrates in place, ensuring perfect registration and consistent print quality. They are ideal for flexible packaging and high-quality film printing. ((https://www.shinkomachinery.com/how-to-choose-best-flexo-printing-machine-startups.html))

Stack Type Flexographic Presses

With individual print stations stacked vertically, this configuration offers flexibility in printing both sides of the substrate and is commonly used for labels and paperboard packaging. ((https://www.shinkomachinery.com/how-to-choose-best-flexo-printing-machine-startups.html))

In-Line Flexo Presses

Designed for thicker substrates like corrugated cardboard, in-line flexo presses allow for the integration of additional processes such as die-cutting, laminating, and coating, streamlining production for folding cartons and corrugated boxes. ((https://www.shinkomachinery.com/how-to-choose-best-flexo-printing-machine-startups.html))

2. How Do I Assess My Production Needs?

Evaluating your production requirements involves considering:

• Substrate Compatibility: Determine the materials you plan to print on, such as paper, plastics, films, or metallic foils. Ensure the machine can handle these substrates effectively. ((https://www.shinkomachinery.com/how-to-choose-best-flexo-printing-machine-startups.html))

• Production Volume: Assess the scale of your operations. High-volume printing jobs may necessitate a press capable of maintaining consistent quality at increased speeds. ((https://www.shinkomachinery.com/how-to-choose-best-flexo-printing-machine-startups.html))

• Print Quality Expectations: Define the quality standards required for your products. Machines with advanced registration and ink control systems can achieve higher print quality. ((https://www.shinkomachinery.com/how-to-choose-best-flexo-printing-machine-startups.html))

3. What Features Should I Prioritize in a Flexo Printing Machine?

• Automation and Computerized Controls: Features like automatic register control and quick changeovers can make your life a lot easier—saving you time and cutting down on downtime.

• Drying Systems and Ink Compatibility: Efficient drying systems (hot air, IR, or UV where applicable) and compatibility with water-based or alcohol-based inks help maintain print quality and reduce run defects. ((https://www.shinkomachinery.com/b2b-buyer-s-guide-to-flexographic-printing-equipment-keshenglong.html))

• Web Handling, Tension Control, and Sheet Transfer: Consistent tension control and precise web handling reduce print defects and misregisters, especially at higher speeds or with wide web formats. ((https://www.shinkomachinery.com/b2b-buyer-s-guide-to-flexographic-printing-equipment-keshenglong.html))

4. What Are the Maintenance Requirements for Flexo Printing Machines?

Regular maintenance extends machine life and ensures consistent output:

• Anilox Roll Cleaning: Clean anilox rolls weekly using ultrasonic baths to prevent ink buildup.

• Doctor Blade Replacement: Replace doctor blades every 6–12 months depending on run frequency.

• Ventilation Systems: Install proper ventilation when using volatile organic compound (VOC)-emitting inks to comply with OSHA standards in the U.S.

5. How Do I Evaluate the Total Cost of Ownership?

When evaluating the total cost of ownership, consider:

• Energy Consumption: Assess energy consumption metrics (kW/m²) for infrared, hot air, or UV curing systems.

• Plate Replacement Frequency: Calculate 5-year expenses including plate replacement frequency.

• Downtime Hours/Year: Assess expected downtime hours per year.

6. How Do I Choose the Right Manufacturer?

When sourcing a flex printing machine:

• Authorized Distributors: Purchase directly from authorized distributors to ensure warranty validity.

• Bulk Purchases: For bulk purchases (>3 units), negotiate extended service packages or operator training.

• Pre-Owned Machines: Inspect pre-owned machines for worn gears, belt tension irregularities, and corrosion in ink trays.

Conclusion: Advantages of Keshenglong & Shinko

Keshenglong and Shinko are renowned manufacturers in the flexographic printing industry, offering equipment that combines advanced technology with user-friendly features. Their machines are designed to enhance productivity, ensure high-quality output, and provide reliable performance, making them a valuable investment for businesses aiming to excel in the competitive printing market.

By carefully considering these factors and selecting equipment from reputable manufacturers like Keshenglong and Shinko, you can ensure that your flexo printing operations are efficient, cost-effective, and capable of meeting the demands of your customers.