Evaluation of the quality of blanket
-Resilience of the surface layer-Whether the thickness is uniform-Tensile resistance-Abrasion resistance-Oil and water resistance on the back-Solvent adaptability-Paper peeling speed
Blanket quality requirements
ï¼ The quality requirements of the printing blanket on the blanket: soft, compression, tensile, surface roughness, recovery, oil and water resistance ï¼ The quality requirements of the printing press on the blanket: speed, release of paper
Main performance parameters of blanket
-Surface roughness (μm); Surface hardness (Shore Shore A); Thickness (mm) and thickness loss rate (%); Tensile resistance; Surface resilience; Print resistance-Data example: Surface roughness is usually < 10μm; The surface hardness is usually 78-82 Shore A (too high, it is easy to appear "drum", "bar", etc., too low to cause graphic distortion); the thickness is usually 1.68-1.72 mm (three layers), 1.95-1.98 mm (four layers); the thickness loss rate is generally <5%; the printing durability is generally below 200,000 prints.
Use and preservation of blanket
ï¼ The thickness of the pad is usually 0.35mm and 040mm, and some may not be added. ï¼ Different models have different requirements for the aluminum clamps at both ends of the blanket. ï¼ High-grade printed products and ordinary printed products are best to use the corresponding grade of rubber.-Face to face, back to back, flat Paving and storage-Anti-light, anti-ultraviolet, anti-moisture-Natural storage, best to use within one year-Keep at about 20 ℃, easy to harden at low temperature, easy to stick at high temperature-Avoid contact with ozone and high voltage-Keep away from electromagnetic fields, static eliminators, etc. - keep clean
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