Euro Cap
The injection vial cap, also known as the disposable sterile injection cartridge plunger, is tightly integrated with the disposable sterile injection cartridge and plays an important role in avoiding the leakage of liquid between the plunger and the wall of the injection cartridge. injection vial caps are made of rubber due to the need to use them, which can ensure the sealing of liquid medicines in glass bottles. The rubber stoppers for infusion vials on the market today are all made of butyl rubber.
The injection vial cap is most commonly used to seal pharmaceutical vials containing liquids or lyophilised solids. It is fitted to the inside of the cap, which is usually made of metal or plastic. A compression moulding is used. And because of the large amount of infusion bottle caps, and the simple structure, more inclined to mass production, so the rubber caps of infusion bottles are mostly used injection moulding. The structure and size of the rubber cap for infusion bottles are more suitable for screw-plunger injection moulding machine, which can adjust the accuracy of the products, save raw materials and reduce energy consumption.
injection vial capIn order to ensure the safety of medicine, the national pharmaceutical authorities have stopped using ordinary natural rubber stoppers for all pharmaceutical bottles. Medical stopper manufacturers are expanding the production capacity of butyl rubber stoppers, mainly with halobutyl rubber, to meet the needs. Bromobutyl rubber has good physical and chemical properties due to its fast vulcanisation speed, high vulcanisation efficiency, high degree of vulcanisation, low amount of vulcanising agent and sulphur-free and zinc-free vulcanisation, which gives bromobutyl rubber stoppers good physical and chemical properties and makes them hygroscopic and good for use in freeze-dried products. For low molecular weight thrombin inhibiting solutions, the stability of the bromobutyl rubber stopper is significantly improved; at the same time, the chemical parameters can be controlled in a good range, thus ensuring compatibility with amino acids, blood products and other I.V. products. Most of the butyl rubber stopper manufacturers in Europe and America use bromobutyl rubber.
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