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What is BOPP film
Sender: 管理员 Send Time: 2006/5/5 17:41:01 Read Times: 4256
 

BOPP film is a very important flexible packaging materials, a wide range of applications. BOPP film colorless, odorless, tasteless, non-toxic and have high tensile strength, impact strength, rigidity, strength and toughness and good transparency. Low surface energy of BOPP film, coating or corona pre-processing required. However, BOPP film treated by corona, and a good adaptation of the printing, color printing can be the appearance of fine effect, and thus commonly used for complex thin film materials of the surface layer. BOPP films are inadequate, such as the easy accumulation of static electricity, no heat sealing and so on. High-speed operation in the production line, BOPP film prone to static electricity, to install devices to remove static electricity. In order to obtain sealing of BOPP films, BOPP films in the corona treated surface can be coated resin sealing glue, such as PVDC emulsion, EVA emulsion, also can be solvent coated plastic, but also the use of extrusion coating, or method of co-extruded composite sealing BOPP film production. The film is widely used in bread, clothing, footwear and other packaging, as well as cigarettes, packaging the cover of the book. BOPP film tear strength of the lead after the increase in the stretching, but the secondary has a low tear strength,
Therefore, BOPP film surface can not be left at both ends of any cut, or BOPP film in the printing, easy to tear off, when complex. After the self-adhesive coating can produce BOPP Packing Tape, BOPP consumption is a bigger market. <BR> <BR> BOPP film can be used membrane tube or flat film production. Different processing methods of the different properties of BOPP films. Flat film of BOPP film production than as a result of stretching (up to 8-10), the intensity ratio of high membrane tube, the uniformity of film thickness is also good. <BR> <BR> Integrated in order to get a better performance, in the course of usual way of producing multi-layer composite. BOPP can complex with a variety of different materials to meet specific application needs. Such as BOPP with LDPE (CPP), PE, PT, PO, PVA is highly complex, such as gas-barrier, wet resistance, transparency, high resistance, low temperature, cooking and oil-resistant properties, different composite membrane can be applied to oily food, delicacies food, dry food, dipping foods, a variety of cooking food, monosodium glutamate, pancakes, cakes and other packaging.

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