MUMBAI, India, Jan. 2 -- Intellectual Property India has published a patent application (202541123065 A) filed by Five Fingers Exports India Private Limited, Coimbatore, Tamil Nadu, on Dec. 6, 2025, for 'automatic hemming mechanism for pp woven liner bags.'
Inventor(s) include A. Ananth; K. P Arunkumar; and S. Mohamed Imran Badusha.
The application for the patent was published on Jan. 2, under issue no. 01/2026.
According to the abstract released by the Intellectual Property India: "The invention relates to an automatic ultrasonic hemming mechanism specifically designed for polypropylene (PP) woven liner bags. The mechanism automates the process of folding and sealing the open edges of woven fabric with inserted liners using ultrasonic vibration energy. The system comprises two sequential working stations: the first (Station 1) temporarily seals and aligns the liner edge with the bag edge through controlled heat sealing, while the second (Station 2) performs precise edge folding and ultrasonic hemming to form a strong, leak-proof, and aesthetically finished top edge. The ultrasonic sealing eliminates the use of stitching, threads, or adhesives, thereby enhancing production speed, reducing maintenance, and ensuring consistent quality. The invention is adaptable for variable bag widths through adjustable die assemblies and modular integration with existing bag conversion machinery."
Disclaimer: Curated by HT Syndication.
