Reported by Google Patents in their article “Spunbond fabric filter bags for vacuum cleaners, are cut and welded ultrasonically in sizes for all brands,” traditional filter bags for vacuum cleaners present several drawbacks, such as complexity in manufacturing, high costs, and environmental pollution due to adhesive technology. Addressing these issues, a groundbreaking invention involves filter bags made of environmentally friendly spunbond-type nonwoven textile material. This material offers high resistance to chemicals, tear resistance, and excellent suction and filter properties.
The core of the innovation lies in the ultrasonic welding process, a departure from conventional methods used in the medical industry. Ultrasonically welded seams provide superior strength, water impermeability, and dustproof qualities. The absence of additives in manufacturing makes this process quick, cost-effective, and environmentally friendly. This technology employs a specially designed ultrasonic welding machine, featuring automatic linear uniform feed of the welding head, simultaneous rotation of a pressure roller, and material fixation. This allows the processing of various textile variations with optimal quality, shaping them into filter bags for vacuum cleaners.
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Article with all rights reserved, courtesy of google.com