Packaging reduces exposure to moisture and oxygen
Gerresheimer
The Duma Twist-Off Protect is a multilayer plastic container (photo) that is said to have improved barrier properties to protect the package contents against degradation that can happen as a result of moisture vapor and oxygen permeability. It is the first plastic container with a multilayer structure manufactured in an injection blow-molding process, says the manufacturer. U.S. Pharmaceopeia and ASTM F 1307 test data confirm that the container admits far lower levels of vapor and oxygen than other standard solutions on the market, says the manufacturer. Compared to extrusion blow-molded containers, it provides extremely good barrier properties due to better control of geometry and thickness.— Gerresheimer, Düsseldorf, Germany