1. BOPP mask packaging hot film product parameters
Product name: mask packaging film
Color: transparency
Material: BOPP
Thickness: 21um/23um/25um
Specification: Customized according to actual needs
Scope of application: mainly used in mask packaging
Features: high degree of transparency, restore the beauty of the product itself
2, BOPP mask packaging hot film product details
The production of the BOPP mask packaging with a thermal seal 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 stretching machine, at a certain temperature and set speed at a certain temperature and set speed. At the same time, or step by step in two vertical directions (vertical and horizontal), a thin film made of appropriate cooling or heat treatment or special processing (such as electric halo, coating, etc.).
Features of mask packaging membrane
The surface of the BOPP mask is low on the surface of the hot -seal film, and the electro -halo treatment is required before printing or printing. After the electrostatic treatment, the mask packaging 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.
The mask packaging membrane can be produced with a membrane method or flat membrane method. Different processing methods obtained the performance of BOPP hot -sealing film. 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.
The BOPP mask packaging can be compounded with 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.
