What kind of food packaging film are there?
types of food packaging film according to the shape, material, use can be divided into many kinds, types of food packaging film, in addition to our common composite membrane, and what are our common food packaging has a function we don't know?
at present commonly used food packaging film mainly include: PVA coated layout barrier film, two-way stretching polypropylene film ( BOPP) , two-way stretch polyester film ( BOPET) , nylon film ( PA) , stretch film, polypropylene film ( CPP) , aluminum plating film, etc. These thin film because of its excellent performance, good transparency, high tensile strength, has a certain gas blocking resistance performance and low production cost, these packing are common types of food packaging film, are widely applied.
edible packaging film, refers to edible materials, mainly natural macromolecular substances such as lipid, protein and polysaccharide, adding edible plasticizer, cross-linking agent and so on, by physical blending, through the different processing technology to form a thin film. Cases of familiar candy packaging used on wafer, packing ice cream corn baking cups, etc. , edible film can be biodegradable, no any pollution. Along with the people environmental protection consciousness enhancement, edible film quickly became a hot research topic in the field of food packaging, and achieved some results. Antibacterial food packaging film
types of antibacterial food packaging film is food packaging film function will be stronger in a package, has the ability to inhibit or kill bacteria of functional thin films. According to the form of antibacterial, can be divided into two kinds: direct antibacterial and indirect. Directly antibacterial is through direct contact with food packaging materials containing antibacterial ingredients realize antibacterial; And indirect antibacterial, mainly in the carrier can add some adjustment of micro environment in packaging material, or use of the choice of packaging material through sex to control the growth of microorganisms, such as gas packaging film.
nano composite film is to point to by the dimension size of nanometer order of magnitude, 1 - 100nm) Group of yuan set in different substrates in the composite film material, which is formed by the a traditional composite materials and the superiority of modern nanometer materials both. Caused by nano composite film because of its special structure of surface effect, volume effect, size effect and so on makes their optical properties, mechanical properties, antibacterial properties, the respect such as blocking performance present the characteristics of conventional materials do not have to make it has been widely used in food packaging, not only can meet the requirements of extend the shelf life of food, but also can monitor the quality change of packaging in food.
biodegradable packaging film, the film is mainly to solve some difficult not easily degradable packing material recycling, underground can destroy soil structure, incineration and produce toxic gases and cause air pollution problem. According to the mechanism of degradation, mainly divided into photodegradation packaging film and biodegradable packaging film.
whatever the types of food packaging film, in the aspect of health security has more stringent requirements, need to have the corresponding standards and testing process, in the stability and safety of materials should have strict standard, so if you need to customize the food packaging film must be looking for a mature stable, food packaging manufacturer focus on packing more than 16 years, class 100000 clean production workshop, has the need to customers can consult.
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