Packaging upgrade is the understanding of packaging materials, the condition of really effective!

Packing is not so much in dealing with the present, rather in dealing with the continuity of early, present and future. Packaging materials and packaging method is to follow people's consumption habits, distributors demand for transport, warehousing and government management department and constantly changes. Properties of the function of packaging materials, direct drive the functional open, flexible packaging operations under the professional of flexible packaging manufacturers are packing of several commonly used packaging materials, help enterprises to complete the packing to upgrade. 1. PE film material heat sealing property of PE material, has been developed from single blown film opened to squeeze film for multilayer such inner, middle and outer formula can be differentiated planning, blending of different types of polyethylene resin formula planning can be made of different sealing temperature, different heat sealing temperature programming and the sealing polluting, different hot sticky strength, different antistatic effect, etc. , to meet specific product packaging requirements, functional PE film with different materials. In recent years, also opened a two-way stretch polyethylene ( BOPE） Film, improves the tensile strength of polyethylene film, and has high heat sealing strength. 2. CPP film materials commonly used in BOPP/CPP material/CPP this moistureproof light packaging structure, but different CPP resin formula also can be made of different functional thin films, such as to improve the low temperature resistance, high temperature cooking, low sealing temperature, high strength, durability, corrosion resistance function of different properties of heat sealing materials. In recent years, as the industry has also developed the CPP extinction film, increase the visual display function of single CPP film bag. 3. BOPP film material light packaging composite film is the most commonly used generally BOPP film and BOPP matt film light, also have BOPP hot sealing membrane ( Single or double heat sealing) And BOPP film. BOPP biggest characteristic is high tensile strength, Suitable for multi-color overprint) , excellent water vapor barrier function, is widely used for packing moistureproof light surface printing materials. BOPP film extinction is similar to the extinction of paper decoration effect. BOPP hot sealing membrane can be used as a single packaging materials used, such as for candy bars covering the inner packing. BOPP film more heat sealing material for sorbet packaging, saves the white ink printing, its density is low, 2 ~ 3 n / 15 mm sealing strength makes bags easy to turn to take out the contents. Others, such as holographic OPP BOPP anti-fog film, laser film, PP synthetic paper, biodegradable series of BOPP film, BOPP functional thin film is by using the specific scheme. 4. PET film material generally 12 & mu; MPET light membrane in composite flexible packaging used widely, and its composite mechanical strength of the product is much higher than BOPP double composite products ( Slightly lower in BOPA double composite products) Oxygen, and resistance to adjust the BOPP/PE ( CPP) Composite membrane by 20 ~ 30 times. PET material has a good heat resistance, roughness can be obtained from good packaging. PET heat shrinkable film, PET film, high separation polyester film, PET tangle film, linear tear functional products such as PET film also has use. 5. Nylon membrane two-way stretch nylon membrane by its high strength, puncture resistance, high temperature resistance, good resistance of oxygen, widely used in pumping air into vacuum state, boiled, cooking bags. 1 mostly. The large volume of more than 7 kg packaging, in order to obtain remarkable resistance to drop, also adopted the structure of BOPA / / PE. Stretch nylon membrane, is widely used in the packaging of frozen food in Japan, it has good low temperature resistance, reduce the rate of broken bags in the process of low temperature greatly. Others, such as YouLong ji has also developed easily bonded ( ONM） Type, straight tensile ( NC） Type, gas cut off ( DCR M E) , double corona ( ONBC） Series of products, such as widening the use of standard BOPA film planning. 6. Aluminum plating film vacuum aluminum plating is in film ( Such as PET, BOPP, CPP, PE, PVC, etc. ) Surface consists of a fine layer of aluminum layer, and then greatly increase the membrane for water vapor and oxygen, light barrier, is most often used in composite flexible packaging VMPET, VMCPP data, VMPET for three-layer composite, VMCPP for two layer composite. OPP/VMPET/PE structure is now old enough to use in pickle, sprouts boiled vacuum packaging of products, to defeat general plating aluminum product layer is easy to move, not boiled, developed with bottom coated VMPET products, and its boiling peel strength can be arrived at 1. More than 5 n / 15 mm, and the aluminum layer does not appear to move, to enhance the bags all the barrier function. 7. General is 6 by the aluminium foil used for aluminum foil flexible packaging. 5μ M or 9 & mu; M thickness of aluminum foil is the material of high barrier property in theory, water, air, pervious to light are & other; 0' , but in practice the aluminum foil pinhole and folding the pinhole resistance is poor, there are some practical barrier packaging effect is not the condition of interest. Aluminum foil material used is the key to prevent its produce pinhole in the process of processing, packaging, shipping, and then drop practice block. In recent years, in the tradition of the aluminum foil material use category is replaced by the more economical packaging material. 8. Coating type high barrier film is mainly PVDC coated film ( K coating film) And PVA coated film ( A coating film) 。 PVDC oxygen and moisture resistance, excellent resistance and excellent transparency, type of PVDC coated film base film is mainly used by BOPP, BOPET, BOPA, CPP, etc. , can also be so PE, PVC, pt thin film, is most often used in composite flexible packaging KOPP, KPET, KPA film. High degree of saponification of poly (vinyl alcohol) ( PVA） Regularity of the molecular structure of high and high polarity, short crystallization, and thus the nonpolar gas such as oxygen of high barrier property.