Application and environmental protection of compos

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Application of pharmaceutical composite film environmental protection

composite film will more or less produce waste in the production process. The development of packaging must be coordinated with the environment. The development of composite materials that are convenient for recycling as much as possible has become a new demand for pharmaceutical packaging enterprises in the market

in recent years, with a series of policies and regulations issued by the state, strengthening the rectification and standardization of drug soft packaging, the drug soft packaging market has also ushered in a spring of development. By the end of 2003, Chinese pharmaceutical packaging material manufacturers and their raw material suppliers had ordered 24 PET production lines. This number seems small, but it is actually quite amazing, because PET film is the main raw material of composite film for flexible packaging of drugs, and launching a large PET production line costs tens of millions of dollars at any time. "No enterprise dares to invest money in it easily, which shows how attractive the potential of China's pharmaceutical packaging industry is"

the next five years will also be a critical period for the rapid development of China's pharmaceutical packaging, especially the pharmaceutical flexible packaging industry. However, Cui reminded us that a fact that cannot be ignored is that the level of 65% of China's pharmaceutical flexible packaging is still behind the world average level in the 1980s. The packaging quality is not high, and its contribution to the pharmaceutical industry is even weaker. In developed countries, packaging accounts for 30% of the value of drugs, while in China, this figure is only 20%

foreign pharmaceutical enterprises have poured into the Chinese market, which not only enriches the variety of drugs in China, but also brings many opportunities to the pharmaceutical flexible packaging industry. At the same time, foreign enterprises have also brought advanced pharmaceutical packaging concepts and standards, which makes the domestic pharmaceutical flexible packaging industry undergoing a positive, especially uneven distribution. However, compared with developed countries, China's pharmaceutical flexible packaging industry has the problems of low industrial contribution rate and low grade. The existing pharmaceutical packaging material production enterprises in China are mostly township collective enterprises with small scale. They intend to adopt the same concept of lightweight composite plate spring. The personnel quality, equipment, technology and management level are low, and the product quality is unstable, resulting in disordered competition

at present, most of the pharmaceutical flexible packaging in the domestic market adopts composite membrane materials. The composite flexible packaging industry began to develop in the middle of the 20th century, and increasingly shows its importance in pharmaceutical packaging. Composite film refers to a multi-layer structure film formed by combining various plastics with paper, metal or other materials through lamination, extrusion veneering, CO extrusion and other technologies

composite film can not only maintain the excellent characteristics of single-layer film, but also overcome their respective shortcomings. It is widely used in the fields of packaging food, medicine and so on. The composite film is composed of substrate, laminated adhesive, barrier material, heat sealing material, printing and protective coating, etc. The base material is usually composed of PE, Pt, BOPP, BOPA, VMCPP, VMPET, etc., which has the characteristics of simple processing, sanitation, economy and high commercialization performance

in addition, the composite film has good barrier (light proof) performance, good sealing, dust-proof, antifouling, moisture-proof, anti-static, can extend the shelf life of internal substances, effectively avoid the damage of all gases, light and other media to drug ingredients, is suitable for storage at any time and in any region, and is suitable for the packaging of powder, fluid, liquid and other products. It has good mechanical adaptability and stiffness, strong printability, and is suitable for high-speed packaging machines; It has certain tensile strength, extensibility and tear resistance, which plays a certain role in prolonging and aggravating the fluctuation of the market and the expected shelf life of drugs, and can meet the requirements of drug packaging

at present, there are various forms of pharmaceutical composite films and bags, and the material structures mainly include paper/plastic, plastic/aluminized plastic, paper/aluminum foil/plastic and plastic foil/plastic, and their barrier properties increase accordingly; The materials of plastics are divided into PE, CPP, BOPR, BOPE, BOPA, etc. The most commonly used compounding process is dry compounding, which is not only suitable for compounding between plastic films, but also between plastic films, aluminum foil and aluminized film. Cui Jingfeng believes that although pharmaceutical composite films and bags will cause certain harm to the environment in the waste treatment and production process, the environmental protection indicators are basically in line with the regulations, and because they have strong comprehensive advantages and incomparable advantages of their materials, they are still widely welcomed, and their consumption has increased rapidly, which has partially replaced other pharmaceutical packaging materials such as glass bottles, plastic bottles and glass infusion bottles, More and more pharmaceutical enterprises choose suitable composite packaging materials according to their transparency, aesthetics, convenience, economy and other factors

the drug flexible packaging market pays most attention to moisture resistance, health safety, responsiveness to drugs, etc. some drugs have a long shelf life, and have high requirements for the barrier of packaging, so aluminum foil materials should be used. The main problems encountered are uneven thickness of packaging materials, color difference in printing, insufficient color, etc. Some small soft packaging manufacturers are not perfect in terms of equipment and sanitary conditions, which makes some pharmaceutical enterprises very worried about the quality of soft packaging, thereby affecting the quality of drugs

flexible packaging manufacturers should pay attention to the following points in the future development: the first choice is that the production should comply with national standards and regulations, the second is to pay attention to the renewal of equipment, and the last is to strengthen personnel training. Personnel training is very important. Only by improving the quality awareness of employees can we ensure the follow-up of product quality. If the quality is improved, the level of the whole upholstery industry will also be improved. Composite film will produce waste more or less in the production process. The development of packaging must be coordinated with the environment. The development of composite materials that are convenient for recycling has become a new demand for drug packaging enterprises in the market

in addition, at present, the most common problems encountered by pharmaceutical enterprises in the use of pharmaceutical composite membranes are shark skin, fish eye spots and excessive residues. Cui Jingfeng said that if we pay attention to the adjustment and control of tension, temperature and speed and the use of ink in the production process, and use less or no benzene containing organic solvents, we should change the agents in time, and change to water-based and solvent-free, these problems can be solved. In addition, due to the influence of many factors, the composite bag will also have leakage, puncture and through-hole phenomenon of the material itself, which will have a very adverse impact on the contents of the package

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