Weilong Packaging BOPP Antibacterial Film: Environmental Protection New Products in Flexible Packaging

Normal > In the soft package product, the plastic packaging film is widely used in the packaging of medical supplies, foods, electronic products, and maternal and child products. In China, only one type of BOPP film is 1.2 million tons/year. A considerable part of the packaging used for medicines, foods, and maternity products requires the use of antibacterial and mildew-proof films.

Normal > The emergence of SARS in 2003 has aroused great concern for the government departments and the general public in China for public health and family health epidemic prevention work. However, excessive use of disinfectants can cause harm to human health. The China Antibacterial Materials and Products Industry Association pointed out that the prolonged excessive use of chemicals such as peracetic acid will lead to poisoning in the human body and cause serious negative impact on the environment. From the perspective of long-term prevention of pathogens, it is an effective way for the public to choose and use antimicrobial products to create a safe, healthy and environmentally friendly living environment in society. It can be seen that the development, Promotion and application of antibacterial materials are very necessary.

Normal > As the demand for antibacterial packaging materials has been rising, Weilong (Shanghai) Packaging Industry Co., Ltd. has targeted this large cake and adopted the "molecular assembly" patented by Ji Qi Antibacterial Co., Ltd., chaired by Prof. An Anxi of East China University of Science and Technology. "Antimicrobial technology" project scientific research results, developed a world-leading BOPP antibacterial film.

Normal > Molecular assembly antibacterial technology is the use of chemical methods to assemble antibacterial masterbatches on the molecular chain of the matrix resin through an antibacterial functional group that is highly effective, broad-spectrum antibacterial activity, safe and non-toxic to human body, and good in heat resistance. Because the antibacterial functional group is chemically bonded to the resin, it overcomes the shortcomings of common organic antibacterial agents that are not heat-resistant, have poor compatibility with the matrix, are not resistant to soaking and washing, and have poor safety performance of exudates. They are highly efficient, broad-spectrum, and safe. Poison, antibacterial effect lasting, excellent thermal stability, good compatibility with the resin, good processing performance, low price, etc., for the domestic and foreign existing antibacterial materials can not be compared.

Normal > Wu Long (Shanghai) Packaging Industry Co., Ltd. General Manager Wu Zhao told reporters that the core component of the antibacterial material is an antibacterial agent. According to the chemical composition, the antibacterial agents can be further divided into natural antibacterial agents, organic antibacterial agents, and inorganic antibacterial agents.

Normal > Natural antibacterial agents, due to the constraints of the processing conditions of raw materials, it is not yet possible to achieve large-scale market production. Organic antibacterial agents have the advantages of strong initial bactericidal power, fast bactericidal speed, and wide range of antibacterial properties, but have problems such as poor heat resistance, certain toxicity, susceptibility to leakage, ingestion by the human body, failure to wash, and short service life. Inorganic antibacterial agents are silver-based antibacterial agents. Its characteristics are not easy to exudate, heat resistance and durability are better. Its deficiencies are the high price, slow antibacterial effect, lack of resistance to washing, and poor antifungal activity. Silver elements are susceptible to photo-oxidation and discoloration, affecting antimicrobial efficacy and product appearance. In addition, the inorganic antibacterial powder has poor compatibility with the polymer material and is easily agglomerated in the matrix resin, which makes it difficult to spin the material and pull the film.

Normal and molecular assembly antibacterial technology The antibacterial principle is that bacterial and fungal cell walls or cell membranes contain negatively charged proteins, and the assembled antibacterial functional groups carry positive electricity, which is adsorbed on the microbial cells due to the effect of Coulomb force. The normal respiratory and metabolic functions of the cell; or the rupture of the cell membrane (the cell wall), the contents flow out, thereby killing the microorganisms and achieve the purpose of antibacterial. Because the charge environment is the basis for the growth and reproduction of bacteria and fungi, just as air and water are to the human body, lack of this environment, bacteria and fungi must die. This is why molecular assembly antibacterial technology has a broad spectrum of antibacterial properties. However, the physical effect of this charge has no effect on the human body, thus ensuring the safety of use, but also ensuring the long-term effectiveness of the antibacterial effect.

Normal> Wu Zhao told reporters that the Shanghai Municipal Science and Technology Commission has passed the appraisal of the "molecular assembly antibacterial technology" project. The experts in the identification group agreed that the molecular assembly antibacterial technology is the third-generation antibacterial technology following the first generation of organic antibacterial agents represented by Europe and the United States and the second generation of nano antibacterial agents represented by Japan. It is the world leader in antibacterial technology. High-tech products.

Normal > Weilong company's production practice has proved that the molecular assembly of antibacterial technology is fully qualified for the BOPP film of the harsh technical requirements, not only to give BOPP film with excellent antibacterial anti-mildew properties. Moreover, because the assembled functional group has a strong polarity, BOPP film is also given excellent antistatic properties. The BOPP antibacterial film produced using molecular assembly antibacterial technology has a very wide range of application prospects, and will also have a profound impact on China's flexible packaging industry and daily life.

Normal >

Normal > Related Links

Normal> Compared with organic and inorganic antibacterial agents, Weilong Packaging's "molecular assembly antibacterial technology" project has outstanding advantages in the following aspects:

Normal > l         Efficient and broad-spectrum antibacterial : Since the antibacterial functional groups are carefully designed and optimized, they have excellent inhibitory effects on bacteria, fungi, and molds commonly found in daily living environments, and can effectively prevent bacteria that are likely to cause common and frequently-occurring diseases. And often caused by black spots, slimy and odor mold;

Normal > l         Safe and non-toxic: The product is tested by the Shanghai Sanitary and Anti-epidemic Station and is non-toxic and non-irritating material, which meets the food and packaging-grade safety and health requirements;

Normal > l         Lasting antibacterial effect : Antibacterial functional groups are based on chemical bonds and radicals