PVDC multilayer co-extruded high-impedance blown film

PVDC multi-layer co-extruded high-permeability blown film is a new material with high barrier MA-PVDC as a barrier layer. The co-extrusion method combines MA-PVDC, PE, EVA, PP, PA and other materials. Complementary becomes a high barrier material with excellent overall performance. For example, a coextruded film with an oxygen transmission rate of <1 cm3/m3.0.1 mpa.d (GB/T1037-2000) and air permeability of <0.7 g/m3 (GB/T1037-1987) can be produced. This film can replace aluminum plastic composite film, EVOH co-extruded film, nylon co-extruded composite film.

Xingtai Wei Te Plastic Co., Ltd.'s six-layer structure PVDC co-extruded blown film except for two adhesive layer, PVDC layer as the base layer is unchanged, the other three layers can be selected according to the customer's requirements for heat-sealing fastness arbitrary materials.

PVDC co-extrusion blown film has higher barrier capability than PVDC coating film and has better vertical and horizontal strength than PVDC coextruded cast film. The product structure can be symmetrical or asymmetrical. Compared with aluminum-plastic composite film, co-extrusion blowing PVDC film has no pinholes, no break cracks, and the product can be either transparent or dark.

Through tests, the water vapor transmission rate of the MA-PVDC coextruded film was maintained at 0.048 in the initial state after 10 Gcllo flexural tests, and the transmittance of the aluminum paper aluminum-plastic composite film after the deflection test was 10 times. g rose to 0.748. However, the test also showed that after the oxygen transmission rate was flexed 10 times, the MA-PVDC rose to 1.52cm3, while the paper aluminum-plastic composite film was still 0.056cm3o (MA-PVDC thickness 0.025mm, aluminum foil thickness 0.12mm).

According to Xingtai Weite Plastic Co., Ltd. will also launch PVDC multi-layer co-extruded high resistance down through the stretch film, its transparency is equivalent to a cast film, without the use of composite can be directly used for low temperature meat packaging. PVDC multi-layer co-extruded high-impedance heat shrinkable film can replace PVDC single-layer artificial casing film. PVDC multi-layer co-extruded high barrier fresh-keeping self-adhesive film has the property of self-adhesion, in addition to its thermal shrinkage characteristics.

Information Source: Plastic Packaging