Definition And Overview Of Hydrogel Coating Machine
A hydrogel coating machine is a composite coating system designed for the production of gel-based products-such as fever-reducing patches, cold compresses, and medicated plasters. Its core functions encompass adhesive coating, lamination, forming, and slicing, enabling the seamless, one-step transformation of raw materials into finished patches. Taking fever-reducing patches as an example, the product typically consists of three main components: a release layer (specifically, a transparent protective layer of PC release paper), a gel reservoir layer (a framework structure composed of hydrophilic polymers that possess excellent energy-conversion capabilities), and a backing layer (typically made of pharmaceutical-grade non-woven fabric). This equipment is capable of processing a wide variety of products, including hydrogel fever patches, hydrogel facial masks, eye care patches, under-eye bag patches, and various other gel-based plasters.
The typical workflow of the equipment involves the following sequence: substrate unwinding → dual-roller coating → embossing → air-knife longitudinal slitting → rotary-cutter transverse cutting → and final completion; its primary objective is to execute the coating, lamination, forming, and slicing processes.
The equipment typically features a PLC touchscreen control system and a stainless steel exterior casing, ensuring compliance with the stringent hygiene standards of the medical industry. In terms of technical specifications, different equipment models vary in parameters such as production speed, coating width, and power consumption; for instance, production speeds can reach 200–250 patches per minute, while common coating widths are typically 480 mm or 500 mm. The industry continues to innovate in coating technology; for example, in 2024, Jianmin Group secured a patent for a "Mold-Pressing and Rotary-Cutting Hydrogel Coating Machine." This patented technology synchronizes the adhesive coating and cutting processes, thereby significantly enhancing production efficiency.
