CT-SW Double Layer Blown Film Machine for Stretch Wrapping Film
CT-SW Series Stretch Wrapping Film Blown Film Machine
The most common products of stretch film are household cling film (small size) or airport luggage packing film (large size).
The SW series has a single layer/ double layer stretch film blown film machine. The differences are :
- Market : Single layer stretch film is sticky on both sides; double layer stretch film is sticky on only one side. Both are used, so you must select according to the local market needs.
- Glue cost : For example, use 50kg of material to produce single layer stretch film, mixed with 5% glue, so the glue usage is 2.5kg; use 50kg of material to produce double layer stretch film, two extruders 25kg each, one of the extruders is mixed with 5% glue, and the glue usage is only 1.25kg. Therefore, the glue usage for making double layer stretch film is less.
- Raw material selection : Double layer stretch film can have more material choices, which can reduce the cost of raw materials.