Best Practices for Plate Mounting in Flexographic Printing with tesaⓇ Softprint

When it comes to flexographic printing, the key to achieving consistent, high-quality results lies in precision during every phase of plate mounting. Experience shows that not all mounting tapes are created equal. Some tapes provide excellent adhesion but require extra mounting time, while others stick so strongly that plates tear during removal. Many printers even factor in the cost of replacing plates for repeat jobs due to tape-related damage.

Anderson & Vreeland is proud to offer tesa® Softprint, a leading plate mounting tape engineered for efficiency, secure adhesion, and easy removal, helping your team deliver flawless print jobs, run after run.

Plate Mounting Techniques for Flexographic Success

Plate mounting is the critical step of securing a flexographic printing plate onto a cylinder or sleeve to ensure precise image reproduction and consistent print quality. By following best practices—including thorough cleaning, careful tape application, and proper alignment printers minimize downtime and avoid costly issues like plate lift and misregistration. Accurate plate mounting not only optimizes print results but also extends the life of both plates and mounting tapes.

What is tesa® Softprint and How Does It Work?

tesa® Softprint plate mounting tapes are designed with advanced foam backing and adhesive technology for superior mounting, minimal edge lifting, and clean demounting. Available in a range of thicknesses (5, 10 and 15 mil), adhesive technologies and hardness levels, tesa® Softprint tapes cater to diverse substrates and demanding print applications, offering easy repositioning, strong bonding during print runs, and residue-free removal when the job is done.​

Step-by-Step: Plate Mounting Best Practices

1. Cylinder/Sleeve Cleaning

Start with a pristine surface. Any residue, including ink, oil, primer, or dust, can undermine adhesion and cause bubbles or plate lift.

• For best results, use 100% isopropyl alcohol as your cleaning agent. It’s universally recommended by flexo equipment manufacturers for its residue-free finish and rapid evaporation, helping prevent air bubble formation under plates.

• Anderson & Vreeland’s Iso-Propyl Alcohol solution is designed for this purpose.

• Avoid excessive water or aggressive solvents like ethyl acetate, which can damage photopolymer plates if used in high concentrations.

2. Plate Cleaning

Clean both sides of your photopolymer plate, especially the back, to remove ink, oil, or chemical residues that interfere with the tape’s adhesive.

• Use 100% isopropyl alcohol for optimal results.

• Wipe with a lint-free cloth, and ensure the plate is dry before proceeding.

3. Tape Mounting

Apply tesa® Softprint tape in a controlled, line-by-line motion using a squeegee or mounting machine.

• The tape’s structured liner helps vent air, reducing the chance of bubbles and maintaining smooth, even contact.​

• Proper alignment is crucial for avoiding print misregistration.

4. Plate Mounting

Fix the plate first to a narrow area of the tape, then press evenly across the surface with a rubber roller or mounting machine for full adhesion.

• tesa® Softprint’s special adhesive allows for initial repositioning but provides a strong, reliable bond once set—keeping plate edges down during long, high-speed print runs.​

• This step is critical for preventing defects like plate lift or compound lift (where tape and plate lift together at the edge).

5. Demounting Plate and Tape

When the print job is finished, remove the plate gently, starting from one edge.

• After the plate is demounted, peel the tape at a flat angle to minimize tension and avoid damaging your cylinder or plate.

• tesa® Softprint is engineered for easy, residue-free demounting to optimize pressroom efficiency and plate lifespan.​

Troubleshooting and Pro Tips

• Residues: Ink, primer, or oil residues can undermine adhesion; clean thoroughly before mounting.
• Chemicals: Excessive ink or cleaning chemicals may heighten adhesion, making demounting harder—use only approved cleaners.
• Common Issues: Bubbles, plate lift, or compound lift usually trace back to surface contamination, improper tape alignment, or incorrect storage.

Storage Conditions: Maintain Peak Plate and Tape Performance

Store plates and tapes at:

• 73°F (23°C)
• 55% relative humidity
• Away from direct sunlight and moisture

Consistent storage prevents adhesive degradation, plate warping, and premature failure.

Trust the Flexo Mounting Tape Pros

Our team of specialists doesn’t just ship boxes; they visit flexo shops, evaluate press operations, and help converters select the perfect flexo mounting tape for every application. Equip your pressroom with advanced mounting and cleaning solutions. Combining tesa® Softprint plate mounting tapes with Anderson & Vreeland’s Iso-Propyl Alcohol solution ensures seamless, reliable, and efficient plate mounting—job after job.

For tailored advice or to order tesa® Softprint for your pressroom, connect with the team at Anderson & Vreeland. Consistent plate mounting starts with the right tools and trusted solutions.