Application of medicinal composite membrane environmental protection

In the production process, the composite film will produce more or less waste. The development of the packaging must be coordinated with the environment. The development of composite materials that are easy to recycle as much as possible becomes a new demand for drug packaging companies in the market.

In recent years, along with a series of policies and regulations promulgated by the state, intensifying efforts to rectify and standardize the soft packaging of drugs, the pharmaceutical soft package market has ushered in a spring of development. As of the end of 2003, a total of 24 PET production lines were ordered by China's pharmaceutical packaging companies and their raw material suppliers. This number does not seem to be large, but it is quite alarming, because PET film is the main raw material for composite film for pharmaceutical flexible packaging, and the launch of a large PET production line costs tens of millions of dollars at a time. "No company can easily invest money in this." This shows how attractive the Chinese pharmaceutical packaging industry is.

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

Foreign pharmaceutical companies have flooded into the Chinese market, which has made China's pharmaceutical products more abundant and also brought many opportunities for the pharmaceutical flexible packaging industry. At the same time, foreign companies also bring advanced concepts and standards for pharmaceutical packaging, which has led to a positive change in the domestic pharmaceutical flexible packaging industry. However, compared with developed countries, China's pharmaceutical flexible packaging industry has the problem of low contribution rate of the industry and low grades. China's existing drug packaging material manufacturing enterprises are mostly township collective enterprises, which are small in scale, low in personnel quality, equipment, technology and management level, and unstable in product quality, resulting in disorderly competition.

At present, most of the pharmaceutical flexible packaging on the domestic market uses composite membrane materials. The composite flexible packaging industry began to develop in the middle of the 20th century, and it has increasingly shown its importance in pharmaceutical packaging. Composite film refers to a multi-layer structure film that is composed of a variety of plastics and paper, metal or other materials by laminating extrusion veneering, co-extrusion and other processing techniques to combine the substrates together.

The composite film can not only maintain the excellent characteristics of the single-layer film but also overcome their respective deficiencies, and is widely used in packaging foods, medicines and other fields. The composite film consists of a substrate, a laminated adhesive, a barrier material, a heat seal material, a printing and protective layer coating, and the like. The substrate is usually composed of PE, PT, BOPP, BOPA, VMCPP, VMPET, etc., and has the characteristics of simple processing, hygienic, economical, and high commercialization performance.

In addition, the composite membrane has a good barrier (lightproof) performance, good sealing, dust, dirt, moisture, and static electricity, can extend the shelf life of internal materials, effectively avoid all gases, light and other media The destruction of pharmaceutical ingredients is suitable for storage at any time and place. It is suitable for the packaging of powdery, fluid, and liquid products. With good mechanical adaptability and stiffness, strong printability, suitable for high-speed packaging machine; and has a certain tensile strength and elongation, easy to tear, have a certain role in extending the shelf life of drugs, can meet the drug Packaging requirements.

At present, there are various forms of medicinal composite membranes and bags, and the main material structures are: paper/plastic, plastic/aluminized plastic, paper/aluminum foil/plastic and plastic as Lu foil/plastic, etc. Incremental; in which the plastic itself is divided into: PE, CPP, BOPR, BOPE, BOPA and so on. The most common compounding method is the dry compounding method. This method is not only suitable for the compounding between plastic films, but also for the compounding between plastic film and aluminum foil and aluminized film. Cui Jingfeng believes that although the composite membranes and bags for medical use will cause some harm to the environment during the processing and production of waste products, the environmental protection indicators are basically in compliance with the regulations, and due to their strong comprehensive advantages and superiority that their materials cannot match, they still have It has been generally welcomed and its usage has increased rapidly. It has partially replaced other medical packaging materials such as glass bottles, plastic bottles, and glass infusion bottles. More and more pharmaceutical companies are based on their transparency, aesthetics, and convenience. Factors such as sex and economy consider choosing a suitable composite packaging material.

Drug packaging market is the most important thing is the moisture resistance, health security, and drug responsiveness, some drugs have a longer shelf life, the packaging of the barrier requirements are very high, to use aluminum foil material. The main problems encountered are uneven thickness of the packaging material, color difference in printing, and lack of color. Some small soft pack manufacturers are not perfect in terms of equipment and sanitary conditions, which makes some pharmaceutical companies very worried about the quality of flexible packaging and thus affect the quality of medicines.

In the future development of flexible packaging manufacturers should pay attention to the following points: The first choice is that production must comply with national standards and regulations, secondly, attention should be paid to equipment renewal, and finally, personnel training should be strengthened. The training of personnel is very important. Only by improving the quality awareness of employees can we ensure the follow-up of product quality, improve the quality, and increase the level of the entire soft package industry. In the production process, the composite film will produce more or less waste. The development of the packaging must be coordinated with the environment. The development of composite materials that are easy to recycle as much as possible becomes a new demand for drug packaging companies in the market.

In addition, during the use of medicinal composite membranes, the most common problems encountered by pharmaceutical companies are shark skin, fish-eye spots, and excessive residue levels. Cui Jingfeng said that if attention is paid to tension, temperature and speed, adjustment and control of the use of ink in the production process, and the use of organic solvents containing benzene is reduced or eliminated, the transition to water-based and solvent-free processes can solve these problems. In addition, due to numerous factors, the composite bag can also suffer from leakage sealing, pressure penetration, and the through-hole phenomenon of the material itself. These phenomena will have a very adverse effect on the contents of the package.