Food packaging film can be divided into many types according to its shape, material, and application. In addition to common laminated film, what are the other functions of food packaging that we do not know?
General packaging film
Currently, the commonly used food packaging films mainly include: PVA coated barrier film, biaxial oriented polypropylene film (BOPP), biaxial oriented polyester film (BOPET), nylon film (PA), cast polypropylene film (CPP) , Aluminized film, etc. These films with excellent performance, good transparency, high tensile strength, high gas and water resistance properties and low production costs, so they are common used for food packaging and and widely used.
Edible packaging film
Edible packaging film is a film refers to the use of edible materials, mainly natural macromolecular substances such as lipids, proteins and polysaccharides, added edible plasticizers, cross-linking agents, etc., through physical mixing and different processing processes. For example, the familiar glutinous rice paper used in candy packaging, corn baking packaging cups for packaging ice cream, etc., the edible film can be biodegraded without any pollution. With the increase of people’s awareness of environmental protection, edible film is quickly become a research hotspot in food packaging industry, and has achieved a lot.
Antibacterial food packaging film
Antibacterial food packaging film is a kind of functional film in food packaging film, which can inhibit or kill bacteria on the surface. The antibacterial film can be divided into two types: direct antibacterial and indirect antibacterial .Direct antibacterial is achieved through direct contact between food and packaging materials containing antibacterial ingredients.; Indirect antibacterial, mainly add some substances that can regulate the microenvironment in the package, or use the selective permeability of packaging materials to control the growth of microorganisms, such as modified atmosphere packaging film.
Nano laminated packaging film
Nano laminated film refers to a composite film material formed by inlays of nanometer-scale components (1-100nm) in different substrates. It has the advantages combine with traditional laminated materials and modern nano materials. Due to the surface effect, volume effect, size effect and other characteristics caused by the special structure of nano laminated films,its particular optical properties, mechanical properties, antibacterial properties, barrier properties and other features are not found in conventional materials, which makes them widely used in food packaging. Nano laminated film can not only meet the requirements of extending the shelf life of food, but also be able to monitor the quality change of food in the package.
Degradable packaging film
This film mainly solves the recycling problem of some non-degradable packaging materials; Solve the problem of burying underground to damage the soil structure; And also the problem ofair pollution caused by toxic gases produced by incineration. According to the degradation mechanism, it is mainly divided into light degradable packaging film and biodegradable packaging film.
No matter what kind of food packaging film, there must be strict requirements in terms of hygiene and safety, and relevant standards and testing procedures to ensure the stability and safety of materials. Therefore, if you need to customize food packaging film, you must find a mature and stable manufacturer. Sunkey Packaging has been focusing on packaging for more than 16 years and a 100,000-level clean production workshop.Please do not hesitate to contact us.