Shenhua Printing Plate Knife Pad: Upgrade in Heat Resistance for High-Temperature Die-cutting Scenarios and Adaptation

High-temperature die-cutting scenarios are widely present in processes such as film coating material processing, hot-press die-cutting, and summer high-temperature workshop operations. The environmental temperature is usually above 60℃. Conventional die-pad cushions are prone to problems such as gel softening, elastic attenuation, and back-gel thermal fusion failure, causing the cushions to deform and shift, which seriously affects die-cutting accuracy and production stability. Deephua Printing Materials focuses on the pain points of high-temperature die-cutting and, through material formula upgrades and heat-resistant processing techniques, creates high-temperature-specific die-pad cushions to achieve long-term and reliable operation under high-temperature conditions.

In the development of heat-resistant materials, Deephua Printing Materials selects a composite material of silicone rubber and fluorine rubber. This material has excellent heat resistance stability and can work continuously in a high-temperature environment of 60℃ - 120℃. The gel does not soften, has no odor, and the rebound rate remains above 92%, with a compression permanent deformation rate of ≤ 5%. At the same time, adding high-temperature stabilizers and reinforcing agents strengthens the molecular chain structure stability and inhibits material aging and degradation under high temperatures. After testing, the product can work continuously at 100℃ for 72 hours, with a performance attenuation rate of only 3%, far superior to the industry's high-temperature die-pad standards. To address the problem of back-gel thermal fusion, Deephua Printing Materials customizes high-temperature-resistant acrylic back-gel with a melting point of over 150℃, which maintains strong adhesion in high-temperature environments and stable peel strength, preventing the die-pad from falling off the die plate.

For different high-temperature scenarios, Deephua Printing Materials provides differentiated solutions. For film coating material hot-press die-cutting (temperature 80℃ - 100℃), it is suitable for medium-hardness high-temperature die-pads (Shore A 55 - 60), balancing heat resistance and buffering performance to avoid wrinkling of the film coating layer due to uneven pressure; for regular high-temperature cutting in summer high-temperature workshops, it selects general-purpose high-temperature die-pads, optimizing the surface heat dissipation patterns to accelerate heat conduction and reduce the impact of high-temperature accumulation on the die-pad performance; for ultra-high-temperature die-cutting scenarios (100℃ - 120℃), it customizes special-formula high-temperature die-pads, combined with heat-resistant protective coatings, further enhancing the high-temperature resistance limit. After application by a film-coated color box enterprise, the replacement cycle of high-temperature die-cutting die-pads was extended from 5 days to 22 days, the defective rate was reduced from 7% to 0.4%, completely solving the die-cutting problems under high-temperature conditions.