Sab sealing tshuab feem ntau ua haujlwm siv peb txoj hauv kev: kub sealing, txias sealing, lossis ultrasonic sealing. Thaum tshav kub kub sealing siv cov cua kub kom yaj thiab cov ntaub ntawv sib khi, haum rau cov ntaub ntawv thermoplastic xws li polyethylene thiab polypropylene. Kev sib khi txias cia siab rau cov nplaum thiab yuav tsum tsis muaj cua sov, ua rau nws haum rau qhov kub thiab txias - cov ntaub ntawv rhiab heev. Ultrasonic sealing siv siab- zaus vibration los ua kom sov, ua tiav cov nplaum-dawb sib txuas, thiab yog tus cwj pwm los ntawm kev ua haujlwm siab thiab huv. Hais txog cov khoom siv, Teflon-coated conveyor siv yog kub-tiv taus thiab tsis yog- nplaum, ua kom ruaj khov thaum lub sijhawm ua haujlwm siab - nrawm.