Concept

　　Lint-free wipes, also known as cleanroom wiping cloths, are made of 100% polyester fiber in a double-weave construction. Their soft surface makes them ideal for cleaning sensitive surfaces without shedding fibers, while offering excellent water absorption and cleaning performance. Both the cleaning and packaging of these products are carried out in ultra-cleanrooms. Edge sealing options for lint-free wipes include cold cutting, laser sealing, and ultrasonic sealing. Polyester and ultra-fine fiber lint-free wipes can generally be perfectly sealed using laser or ultrasonic methods.

Cutting method

　　1. Unsealed edges (cold cutting)

　　Dust-free wiping cloths are primarily cut directly using electric scissors. This cutting method easily generates lint along the edges, and the cut edges cannot be further cleaned or treated to maintain cleanliness. During use, a certain amount of fabric debris will accumulate along the edges, compromising cleanliness. Therefore, it is generally not recommended to use high-end wiping cloths for such applications.

　　2. Laser Cutting

　　Laser cutting achieves instant high-temperature melting and severing, resulting in excellent edge sealing with no fiber shedding. After cutting, the edges can be subjected to water rinsing and other cleaning processes to ensure a high level of dust-free quality. The drawback is that the melted edges tend to be slightly rigid; however, with careful handling during wiping, this generally does not pose a problem. In fact, 75% of the market currently uses this type of edge sealing.

　　3. Ultrasonic Edge Sealing

　　The vibration generated by the ultrasonic transducer (vibrator)—which converts electrical energy into mechanical energy—is transmitted via the horn (welding head) to deliver heat, which then presses and cuts the fabric with the cutting tool. This edge-sealing method represents the most ideal approach among dust-free fabric-cutting techniques.