| abstract |
The invention discloses a film for a disposable high-barrier intravenous nutrition infusion bag and a preparation method thereof. The film includes a three-layer structure. The heat-sealing layer A is composed of a mixed resin composed of ultra-low density polyethylene and cyclic olefin copolymer; the structural layer B is composed of a mixed resin composed of metallocene polyethylene and ethylene-vinyl acetate; Layer C is composed of modified nylon. The film material of the present invention does not need to add plasticizers and opening slip agents during processing, and has few migration precipitates, good opening properties, excellent drug compatibility, strong mechanical properties, thin thickness, low manufacturing cost, and high barrier properties. It has good protection for nutritional infusion, reduces the probability of drug deterioration, and ensures the safety of patients'medication; the film material can be either high-frequency heat sealing or high-temperature heat-pressing rapid heat-sealing, and can be sterilized by gamma rays after bag making. , Abandoning the existing problems of ethylene oxide sterilization, and improving the adaptability of the film for infusion bags. |