Attività

Another kind of Coated plastic woven bag production must go

through the coating process, using the extrusion coating machine to coat a layer of plastic film with a thickness of about

0.02 ~ 0.04mm on the outside of the woven pp cloth. Or at the same time, to use the coating material as the bonding medium,

and then composite a layer of BOPP film on the surface, can achieve better waterproof effect, it was named BOPP pp woven

laminated bag. When doing coating, the temperature of the extruded film is about 300 ℃, and the newly extruded film is

combined with the braid by a pair of cooling rollers. However, such high temperature reduces the strength of the cloth

surface, reduces the elasticity, increases the brittleness of the bag surface, and makes the bag easier to be damaged in the

falling tests.

WHAT IS ARE VALVE BAGS?

Valve bags are packaging bags filled by machines. They come in plastic or paper. Here at Western Packaging, we are a

wholesale manufacturer who offers the paper version, with many options. The three main things to consider are size, closure

type, and coatings.

CHOOSE THE RIGHT SIZE