Shenhua Printing Plate and Die Pad Anti-Scorching Protection Cushion: A Special Anti-Damage Solution for Thermal Paper Die Cutting with Precise Adaptability

Thermal paper is widely used in scenarios such as supermarket checkout paper, express delivery labels, and medical thermal labels. The core problem is that during die-cutting, it is prone to heat generation due to friction and excessive pressure, resulting in damage to the thermal coating, color change, blurred text, and label failure. The conventional elastic pads have a high friction coefficient and poor heat dissipation performance, making it difficult to meet the special die-cutting requirements of thermal paper. Deephua Printing Materials focuses on the pain points of thermal paper die-cutting and has developed a special knife pad for thermal paper. Through anti-scalding and low-friction design, it achieves high-precision die-cutting of thermal paper and eliminates the problem of scalding failure.

In terms of material optimization, it uses low-temperature, friction-resistant elastic materials and adds efficient heat dissipation components. The friction coefficient of the pad is controlled below 0.07, and the temperature generated during die-cutting is kept within 40°C, which is much lower than the scalding temperature of the thermal coating (60°C). This eliminates the problem of scalding and color change of the thermal coating from the root. At the same time, the material's rebound performance is optimized, with a rebound rate of over 96%, and the compression permanent deformation rate is ≤ 3%. With a gentle and uniform buffering pressure, it avoids pressure damage to the coating and ensures clear and undamaged text on the surface of the thermal paper, without any scratches.

In terms of structural design, the surface of the pad adopts nano anti-adhesion and heat dissipation patterns. The patterns are fine and uniform, which can quickly conduct the trace amount of heat generated during die-cutting and reduce the contact area between the pad and the thermal paper, further reducing the risk of heat generation and adhesion. Considering the thin and stretchable characteristics of thermal paper, a 0.5-1.0mm ultra-thin pad has been launched, with a thickness error controlled within ±0.02mm, ensuring uniform pressure transmission and avoiding thermal paper stretching and deformation. After a courier label printing factory applied this solution, the scalding failure rate of thermal paper die-cutting dropped from 11% to 0.2%, the clarity of label text met the standard rate of 100%, and the production efficiency increased by 28%, fully meeting the die-cutting requirements of thermal labels.