1. Mechanical Precision
Registration Accuracy: The color registration error between adjacent rotary screens should be ≤0.1mm to ensure perfect pattern alignment.
Rotary Screen Deformation Control: The deformation rate of nickel screens must be maintained below 0.5% during high-magnetic field scraping to avoid uneven colorant penetration due to increased contact area.
Registration Accuracy: Inline die-cutting machines must support a secondary overprint accuracy of ±0.1mm (e.g., rotary screen printers and die-cutters).
2. Production Efficiency
Printing Speed: Industrial-grade rotary screen printing machines can reach speeds of 60-100 m/min. The magnetic scraper system improves efficiency by over 30% compared to metal scrapers.
Screen Change Time: The quick-load rotary screen design reduces downtime; a single-color rotary screen change should take less than 5 minutes. 3. Process Adaptability
Mesh Count Selection: High-mesh screens (≥120 mesh/inch) are suitable for fine patterns, while low-mesh screens (80-100 mesh) are suitable for thicker fabrics.
Scraper System:
Metal scrapers: Suitable for thin fabrics, providing improved line definition.
Magnetic scrapers: Provide uniform pressure and are suitable for large-scale production, but avoid deformation of the rotary screen caused by high magnetic fields.
4. Stability and Maintenance
Belt Circulation System: The rubber belt should be equipped with automatic guide and cleaning devices to reduce deviation and colorant residue.
Drying Unit: Loose hot air drying can reduce fabric deformation, and temperature control accuracy must be within ±2°C.
Testing and Verification Methods
Trial Print Verification: Use a standard pattern to test color registration accuracy and colorant penetration uniformity.
Continuous Operation Test: Run the machine for 8 hours of uninterrupted production to check whether temperature rise and mechanical vibration exceed standards.
