Which sponge dressings can be cut and fused by high-frequency equipment

Medical PVA sponge dressings, EVA sponge liners, synthetic fiber sponge products, and similar items are often processed using high-frequency equipment for simultaneous melting and cutting. Below is a detailed analysis:

Medical PVA Sponge Dressings
Medical PVA sponges are widely used in surgical hemostasis and wound care due to their high absorbency, softness, and biocompatibility. High-frequency equipment utilizes high-frequency electromagnetic fields to generate frictional heat within PVA molecules, enabling simultaneous welding and cutting under mold pressure. This ensures smooth, burr-free edges, eliminates fiber shedding to reduce infection risks, and enhances production efficiency.

EVA Sponge Liners
EVA sponge, known for its elasticity, water resistance, and moldability, is commonly used in medical device linings and rehabilitation aids. High-frequency equipment allows precise temperature control, enabling EVA materials to be welded and cut simultaneously. This ensures a perfect fit with device contours, provides rounded and smooth edges without sharpness, and improves patient comfort.

Synthetic Fiber Sponge Products
Synthetic sponges made from materials such as polyester or polyurethane fibers are often used in medical dressings and high-end care products due to their antibacterial and hypoallergenic properties. High-frequency equipment polarizes synthetic fiber molecules via a high-frequency electric field, generating heat for binder-free welding. This avoids chemical residue and achieves cutting precision of up to ±0.1mm, meeting the stringent dimensional consistency requirements of medical products.