First,plastic
Plastics are one of the main packaging materials,and the history of plastics used in pharmaceutical packaging is not too long.The many advantages of plastics have determined that plastics will have and will play a major role in drug packaging.These advantages include light weight,unbreakability,ease of use,barrier to gases,ease of compounding of different plastics,plastics and other materials,and mature molding processes.
Plastic resin
Plastic resin is a kind of plastic polymer compound,according to its different structure and nature,can be roughly divided into two major categories of hot solid resin and thermoplastic resin,pharmaceutical plastic packaging most of the use of thermoplastic resin.
2.Additives
Resin is the main component of plastic.In the plastic manufacturing process also need to add a variety of additives,additives generally have plasticizers,antioxidants,antistatic agents,lubricants,colorants,heat stabilizers and so on.
Second,the relationship between plastic packaging materials and drugs
Drugs are a special commodity.As packaging materials(or containers)that are in direct contact with drugs,they must be able to ensure the safety and efficacy of drugs and ensure the stability of drug quality.At the same time,they must meet the convenience needs of patients.
The adaptability between the plastic packaging material(container)and the packaged drug is a problem that the drug manufacturer must solve when selecting the packaging material.Light,heat,humidity,microbes,oxygen,and mechanical impact can all have an adverse effect on the quality of medicines.The purpose of packaging is to prevent the influence of the above external factors on the quality of medicines at a certain intensity.This involves a barrier problem that includes barriers to light,microorganisms,and gases.Plastic bottles made of brown or added titanium dioxide to make white bottles are also designed to block light.The aluminum foil in the composite film not only greatly improves the gas barrier property,but also completely blocks the light.
