Shenhua Printing Plate Knife Pad: A precise micro-structured solution featuring small rounded corners and micro-cutting notches for optimal fit.

High-end gift boxes, beauty product packaging, and precision electronic labels extensively use small rounded corners (R ≤ 1mm), tiny hollows, and narrow ribbed structures. These positions are the areas where die-cutting accuracy is most critical. Conventional spring pads are prone to local collapse and delayed rebound at small radius cutting lines, resulting in rounded corner deformation, hollow connection points, and rib edge burrs. They can only reduce speed and require manual edge trimming, making it difficult to improve efficiency and yield. Deephua Printing Materials has developed a special spring pad for small rounded corners and tiny hollows, achieving one-time formation of fine structures. 

At the microscopic accuracy level, using high-density homogeneous materials eliminates local uneven hardness. The hardness fluctuation of the same layout is ≤ 1 Shore A. Combined with ultra-precise cutting technology, the edge error of the spring pad and the parting surface is controlled within ±0.01mm. It achieves high-precision adhesion with small rounded corners, tiny hollows, and cutting lines, avoiding contour deformation caused by spring pad size deviations. For the problem of collapse in small radius areas, a local micro-enhancement structure is adopted. Without changing the overall flexibility, the support of the small cutting lines is improved, ensuring full-rounded corners and regular contours.

In terms of material performance, a micro-rebound highly sensitive formula is selected, with fast rebound response and small compression deformation. It can still provide rebound support in the fine cutting lines, avoiding adhesive and continuous connection points after die-cutting. A low-friction anti-stick coating is used on the surface to reduce the adsorption of fine waste materials from the spring pad. Combined with the equipment's waste removal system, it can achieve smooth discharge of tiny waste materials. After this spring pad was launched by a high-end beauty gift box enterprise, the defective rate of die-cutting for small rounded corners and tiny hollows decreased from 9.3% to 0.5%. The manual edge trimming process was eliminated, and the production efficiency increased by 40%. The appearance consistency of the fine structure reached the brand acceptance standard.