Extrusion Pe Machine Coating With Kraft Paper

Extrusion Pe Machine Coating With Kraft Paper

Extrusion pe machine coating with kraft paper is a new type of packaging material. It is made of a special kind of kraft paper coated with a thin layer of polyethylene, which makes it waterproof and oil-proof. This material can be used to make bags, paper cups and cartons, etc. It is an eco-friendly and cost-effective alternative to conventional paper products. It is especially useful in the food industry, where it can be used to make food cartons and paper bags. The advantage of this material is that it can be recycled many times without losing its performance.

The production process of this product is very simple and easy, with high automation and good stability. It is an ideal replacement for dry lamination and hot melt adhesive lamination. It can be applied to a variety of substrates, such as PET film, plastic paper, laser film, metallized film and so on. The process does not need any chemical solvents or glue, so it is environmentally friendly. The production line also has a number of advanced electrical and mechanical devices, which can ensure a high quality of the final product.

Moreover, the flame retardant additives used in this technology need to meet certain requirements to achieve satisfactory performance. They must withstand the high processing temperatures of extrusion coating (260-320 degC) without thermally induced breakdown and maintain good compatibility with the polymer matrix and rheological properties. They must also be non-toxic and, in particular, suitable for food end contact applications.

Another important factor is the adhesion of the polymer coating to the fiber-based paper substrate. This is particularly critical for multilayer structures, where the adhesion between different layers is often a significant contributor to product reliability. It is therefore essential that the coating adhesion with the paper substrate is sufficient and that pretreatments such as corona or flame are not excessively utilized, since these treatments can adversely affect the coating adhesion.

Besides the above-mentioned factors, the most important characteristic of a suitable flame retardant additive for extrusion coating with kraft paper is its resistance to thermally induced degradation at elevated temperature. In addition, the additive must have a low decomposition rate and retain its ability to prevent flame spread at a wide range of concentrations in a multilayer polymer system.

Tags:double layers extrusion coating machine | extrusion and lamination machine | extrusion laminating machine