Abstract of medical paper plastic packaging bag
Disposable paper-plastic packaging is a commonly used packaging material. It has a good biological barrier function, which makes the shelf life of sterilized items and delivery period. The traditional packaging has a long sterilization validity period, and at the same time has its beauty and visibility, it has been widely used Packaging for sterilization and sterilization in hospitals. However, due to the improper control of temperature and speed during the packaging operation or randomness, the seal is not only cracked, but the closure of the packaging cannot achieve the due "bacteria resistance" effect. The sealing operation was investigated and analyzed, and the following conclusions were drawn. The tightness of the sealing is not only related to the performance of the sealing machine itself, but also closely related to the temperature during sealing, the speed of paper feeding and the standardization of operation.
According to the chemical structure characteristics of the paper-plastic packaging bag, it is composed of a paper layer and a plastic layer. The plastic layer is a polyester layer and a polypropylene layer. The melting point of 260℃-160℃ is selected as the control temperature of the heat sealer. A total of 9 batches are carried out. In the experiment, 30 packs were sealed in each batch, of which 10 packs were packed at low speed, 10 packs at medium speed, and 10 packs at high speed, and a total of 270 packs were packed (in each pack, a small needle knife for orthopedics was placed with a piece of gauze cloth) for visual observation. The seal of its package. Start the machine and preheat for 5-10 minutes. After the temperature reaches the predetermined set temperature indicator beam, select the appropriate packaging bag according to the size of the instrument, and then seal it at different temperatures and sealing speeds. After pre-vacuum pressure steam sterilization at 132°C, take it out to check the sealing condition with naked eyes. If the seal of the packaging bag is automatically cracked after sterilization treatment, the device is connected to the outside world, or the seal is wrinkled, the width of the sealing tape of the seal does not reach 6mm, and the paper surface is coked as an unqualified bag.