What is BOPP? What are the advantages compared to ordinary plastic film?
BOPP plastic film is a kind of flexible packaging material, which is widely used. BOPP plastic film is colorless, odorless, tasteless, non-toxic, and has high tensile strength, impact strength, rigidity, toughness and good transparency. BOPP plastic film has low surface energy and needs corona treatment before coating or printing.
Since the BOPP plastic film is corona-treated, it has good printing adaptability, and the color appearance printing can obtain a beautiful appearance effect, and thus is often used as a surface layer material of the composite film.
BOPP plastic film is prone to static electricity on high-speed production lines, so static cleaners need to be installed. In order to obtain a heat-sealable BOPP plastic film, a heat-sealable resin glue may be applied after corona treatment on the surface of the BOPP plastic film, or a heat-sealable BOPP plastic film may be produced by extrusion coating or co-extrusion compounding. .
BOPP plastic film is widely used in the packaging of bread, clothes, shoes and socks, as well as the cover of cigarettes and books. The initial tear strength of BOPP plastic film is improved after stretching, but the secondary tear strength is very low. Therefore, there is no incision left on both end faces of BOPP plastic film, otherwise BOPP plastic film is easy to be printed and compounded. Tear off.
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