1. Plastic materials should be non-toxic, heat-resistant, water-resistant, have good corrosion resistance and light resistance, undergo 30 minutes of steam disinfection at 120 degrees Celsius (or 5 minutes of steam disinfection at 130 degrees Celsius) without deformation or fading, and have good secondary heat sealing performance. Generally, polypropylene is used.
2. The medicinal aluminum-plastic combination cover should be made of aluminum alloy material. After stamping, it must be cleaned to remove lubricating oil and dust coated on the aluminum material during the stamping process. Even after anodizing treatment, the cover should be cleaned and dried with ionized water after entering the factory, and then enter the purification room through the conveying mechanism. The medicinal aluminum-plastic combination cover is formed by an injection molding machine at a high temperature and generally does not need to be cleaned, Directly enter the purification room through the conveying mechanism. Here, it is emphasized that the cleaned aluminum cover and injection molded plastic cover should not be touched by hand during the entire process from entering the purification room to entering the packaging box after molding to prevent contamination.
3. After entering the purification room, the cleaned medicinal aluminum-plastic combination cover should be made of stainless steel material that is easy to clean, non-toxic, and pollution-free for the production equipment that comes into direct contact with the aluminum or plastic cover during the forming process of the medicinal aluminum-plastic combination cover.
4. During the stamping process of the medicinal aluminum-plastic combination cover, if a breakpoint or scratch type is used, the size of the breakpoint and the depth of the scratch should be checked to ensure stable tearing force.
5. During the anodizing treatment process of the medicinal aluminum-plastic combination cover, it should be noted that if the acid washing treatment time of the aluminum cover is too long, it will cause the thickness of the medicinal aluminum-plastic combination cover to become thinner, the strength to decrease, and it cannot be used.
The pharmaceutical aluminum-plastic combination cap processed and formed according to the above process generally does not need to be cleaned again when entering the packaging bottle mouth of the pharmaceutical factory, as long as it is disinfected. The process of not cleaning the aluminum cap after stamping and forming, and then cleaning it after combining it with the plastic cap, or transferring it to the pharmaceutical factory for cleaning, is not appropriate because the combined cap aluminum cap and plastic cap are tightly pressed together, which cannot be cleaned completely. At the same time, there will be water or dirt left between the plastic cap and the aluminum cap, Drying treatment is not easy to evaporate and clean, and cannot be washed clean, leaving stains after drying.