Películas Plásticas de Industria y Agricultura

Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging, and used as a film layer. Plastic packaging and plastic packaging products are taking up more and more shares in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields, and food packaging has the largest proportion, such as beverage packaging, Quick-frozen food packaging, retort food packaging, fast food packaging, shopping bags, clothing bags, food bags/wrapping paper, bubble wrap paper, pallet wrap paper, shrink wrap paper, paper towel and toilet paper outer packaging, air packaging plastic film, etc.

Main categories:
PVA coated high barrier film
PVA coated high-barrier film is made by coating PVA with nano-inorganic substance on polyethylene film and then printing and compounding. Without greatly increasing the cost, its barrier performance is not only significantly better than the five-layer EVOH The film is squeezed, and the packaging cost is also greatly reduced. This not only ensures all the quality requirements for aseptic packaging of the packaged material but also greatly reduces the cost of aseptic packaging for food processing enterprises. It can be used for packaging beverages, juices, milk, Soy sauce vinegar, etc.

BOPP biaxially oriented polypropylene film
The biaxially oriented polypropylene film is made by co-extruding polypropylene particles to form a sheet and then stretching it in both vertical and horizontal directions. Due to the orientation of the stretched molecules, this film has good physical stability, mechanical strength, air tightness, high transparency and gloss, toughness and wear resistance. It is the most widely used printing film, and the thickness is generally 20-40 μ m, the most widely used is 20 μ m. The main disadvantage of biaxially oriented polypropylene film is poor heat-sealability, so it is generally used as the outer film of the composite film. For example, it has ideal moisture resistance, transparency, strength, stiffness and printability after being composited with polyethylene film. Pack dry food. Because the surface of the biaxially oriented polypropylene film is non-polar, the crystallinity is high, and the surface free energy is low. Therefore, its printing performance is poor, and the adhesion to ink and adhesive is poor. It needs to be surfaced before printing and lamination. deal with.

LDPE low-density polyethylene film
Low-density polyethylene films are generally made by blow molding and casting processes. The thickness of the cast polyethylene film is uniform, but because of the higher price and lower cost, it is the most widely used. Low-density polyethylene film is a semi-transparent, shiny, and soft film with excellent chemical stability, heat-sealability, water-resistance and moisture resistance, freezing resistance and boiling. Its main disadvantage is that it has poor oxygen barrier properties. It is often used in the inner film of composite flexible packaging materials. It is also the most widely used and most used plastic packaging film, accounting for more than 40% of the consumption of plastic packaging films. Since the polyethylene molecule does not contain polar groups, has high crystallinity and low surface free energy, the film has poor printing performance and poor adhesion to inks and adhesives, so it is necessary before printing and lamination to Perform surface treatment.

PET polyester film
Polyester film is a film material made of polyethylene terephthalate as a raw material, made into thick sheets by extrusion, and then biaxially stretched. It is a colorless, transparent, glossy film with excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high and low-temperature resistance, chemical resistance, oil resistance, air tightness and fragrance retention Good, one of the commonly used barriers composite film substrates. However, the price of polyester film is relatively high, and the thickness is generally 12 μm. It is commonly used as the outer layer material of retort packaging and has good printing properties.

PA nylon film
Nylon film is a very tough film with good transparency, good gloss, high tensile strength, high tensile strength, and good heat resistance, cold resistance, oil resistance and organic solvent resistance. Excellent abrasion resistance, puncture resistance, and relatively soft, excellent oxygen barrier, but poor barrier to water vapor, greater moisture absorption and moisture permeability, poor heat sealability, suitable for packaging hard items, such as greasy Sexual food, meat products, fried food, vacuum packaged food, steamed food, etc.

CPP cast polypropylene film
Cast polypropylene film is a polypropylene film produced by a casting process. It can be divided into ordinary CPP and cooking grade CPP. It has excellent transparency, uniform thickness, and uniform vertical and horizontal performance. It is generally used as the inner part of composite film. Layer material. The thickness of ordinary CPP film is generally between 25 and 50μm. After being compounded with OPP, the transparency is good, the surface is bright, and the hand feels firm. General gift packaging bags use this material. This film also has good heat sealability. The thickness of the cooking-grade CPP film is generally between 60 and 80 μm. It can withstand high-temperature cooking at 121°C for 30 min. It has good oil resistance, air tightness, and high heat seal strength. The inner layer of general meat packaging is uniform. Use cooking grade CPP film.

Aluminized film
The most widely used aluminized films are mainly polyester aluminized film (VMPET) and CPP aluminized film (VMCPP). Aluminized film has both the characteristics of plastic film and the characteristics of metal. The function of aluminum plating on the surface of the film is to shield light and prevent ultraviolet radiation, which not only extends the shelf life of the contents but also improves the brightness of the film. It replaces the aluminum foil to a certain extent. It also has a low price, beautiful appearance and better barrier properties. , Aluminized film is widely used in composite packaging.

Plastic film shredder in plastic film recycling
As a matter of fact, most plastic film is polyethylene (PE) or polypropylene (PP) based and are suitable for recycling if cleaned of contamination. Shredding is a primary step in plastic film’s recycling process. The collected waste plastic films are firstly shredded into small pieces by plastic film shredder and then further washed and dried. At last, the cleaned pieces are melted down and made into new products. Most waste plastic films are turned into composite lumber, but they can also be reprocessed into small pellets or post-consumer resin, which can be used to make a variety of new products like new bags, pallets, containers, crates, etc. WANROOETECH double shaft shredders, double single shaft shredder, plastic film washing machine, plastic film pelletizer machine are perfect to shred plastic film. Contact us to get an optimal solution for your recycling project.