The production of BOPP film is to make the melt of the polymer polypropylene first made into a sheet or thick film through the narrow head, and then in the dedicated stretch, at a certain temperature and set speed, or step by step at the same time or step by step Stretching on two vertical directions (vertical and horizontal), and a thin film made of appropriate cooling or heat treatment or special processing (such as electric halo, coating, etc.).
Common BOPP films include: ordinary two -way stretching polypropylene film, hot -seal two -way stretching polypropylene film, tobacco film packaging film, two -way stretching polypropylene light film, two -way stretching polypropylene metal film, eliminating film, etc. Essence
BOPP film features:
The surface of the BOPP film can be low, and the electro -halo treatment must be performed before printing or printing. After the electromotive treatment, the BOPP film has good printing adaptability, which can be printed with color printing to obtain exquisite appearance effects. Therefore, it is often used as a composite film layer material.
BOPP film can be produced with a membrane or flat film method. The performance of the BOPP film obtained by different processing methods is also different. The BOPP film produced by the flat film method is higher than that of the stretching ratio (8-10), so the strength is higher than that of the tube membrane method, and the uniformity of the thickness of the film is also better.
BOPP film use
BOPP can be composed of a variety of different materials to meet special application needs. For example, BOPP can be compounded with LDPE (CPP), PE, PT, PO, PVA, etc. to obtain high -level gas blocking, damp -blocking, transparent, high temperature resistance and low temperature resistance, cooking resistance and oil resistance. Zhenwei food, dry food, impregnated food, various cooking cooked food, monosodium glutamate, pancakes, rice cakes and other packaging.
The above is the introduction of "What material is BOPP film?" Shenzhen Xianzi Biotechnology Co., Ltd. is a manufacturer of products that specialize in developing BOPP films, POF contraction films, and easy lines. , POF shrink film wholesale customization service.
