NF H34-065-2008 specifies a method for the determination of printing adhesion of flexible laminates and plastic tubes in Encasement materials. This standard ensures that the printing pattern does not peeling or damage during the processing, transportation and use of Encasement materials by evaluating the adhesion strength between the printing layer and the substrate. Encasement materials suitable for food, pharmaceuticals and Miscellaneous consumer goods have important applications especially in industries that require printing quality and durability. This test method provides reliable quality control means for Encasement manufacturers to ensure the appearance, durability and effectiveness of information transmission of Encasement, and to enhance the market competitiveness and customer satisfaction of products.