Printing Machine Underlay Film (Base Cushion Sheet)
Brand EISI
Product origin Guangzhou,China
Delivery time 3-5 Days
Supply capacity 10000 pcs
The underlay film (also known as printing machine cushion sheet or base pad) is a high-precision shock-absorbing lining material used in offset presses, die-cutting machines, and other printing equipment. Installed beneath the plate cylinder or impression cylinder, it serves to regulate pressure, compensate for plate thickness variations, protect machinery, and enhance print quality.
Product Overview
The underlay film (also known as printing machine cushion sheet or base pad) is a high-precision shock-absorbing lining material used in offset presses, die-cutting machines, and other printing equipment. Installed beneath the plate cylinder or impression cylinder, it serves to regulate pressure, compensate for plate thickness variations, protect machinery, and enhance print quality.
Key Features
High Elasticity & Pressure Resistance
Made of polyurethane (PU) or specialty rubber, offering superior elasticity to withstand prolonged high-pressure printing and prevent cylinder deformation.
Precision Thickness Control
Thickness range: 0.1mm–1.0mm (customizable), with ±0.02mm tolerance for uniform printing pressure.
Wear & Aging Resistance
Surface-hardened treatment resists ink and dampening solution corrosion, ensuring long service life (up to millions of impressions).
Anti-Slip & Vibration Damping
Features self-adhesive backing or anti-slip texture for secure installation; effectively absorbs machine vibrations to reduce dot blurring.
Broad Compatibility
Compatible with mainstream offset presses from Heidelberg, Roland, Komori, Beiren, and others.
Technical Specifications
| Parameter | Standard Value |
|---|---|
| Material | Polyurethane (PU) / Synthetic Rubber |
| Thickness | 0.1mm, 0.2mm, 0.3mm, 0.5mm, 1.0mm (customizable) |
| Hardness (Shore A) | 70°–90° (selectable per pressure requirements) |
| Temperature Range | -20℃–120℃ (no deformation) |
| Color | Transparent/White/Gray (optional) |
Primary Applications
Offset Press Cushioning:
Used under plate or blanket cylinders to compensate for plate thickness variations, preventing uneven pressure-induced issues like scumming or dot distortion.
Die-Cutting Machine Buffer Pad:
Protects cutting dies from impact damage, extending mold lifespan.
Embossing/Stamping Machines:
Serves as a base pad to enhance dimensional embossing effects.
Advantages Over Traditional Lining Materials
| Feature | Underlay Film | Kraft Paper/Plastic Sheets |
|---|---|---|
| Precision | Uniform thickness (±0.02mm) | Prone to moisture warping, high variability |
| Durability | Pressure- and wear-resistant, long lifespan | Fragile, requires frequent replacement |
| Print Quality | Even pressure, sharp dots | Risk of scumming/ghosting |
Selection & Installation Guide
Machine Compatibility:
Confirm cylinder type (plate/blanket) and required thickness.
Pressure Calibration:
Post-installation pressure adjustment recommended (use a pressure gauge).
Replacement Cycle:
Regular surface wear inspection (typically replace every 6–12 months).
Customization Available: Special sizes, hardness levels, or adhesive backing (e.g., high-temperature/high-rebound variants).
This product is engineered for printing equipment maintenance and print quality optimization, tailored for printing houses, packaging manufacturers, and machine service providers. For datasheets or samples, contact us!
Note: Terminology adapted to global printing industry standards for clarity.
