Downgauge Paper Overwrap Films Using mLLDPE Blends, 1999 Polymers, Laminations & Coatings Conference Proceedings
Richard W. Halle--Downgauging is a continuing trend in the evolution of the films used to package paper products, such as toilet paper, napkins, and paper towels. As is usual in almost all downgauging efforts, a basic goal of the film redesign process is that any decrease in film thickness be accomplished with little or no loss in film properties, such as stiffness, clarity, and puncture resistance.
A study of blends of mLLDPE with a medium molecular weight HDPE has shown that downgauged films can be designed with properties comparable to today’s overwrap films. These mLLDPE-HDPE blends open new avenues to film formulation where film toughness and stiffness must be maintained while film thickness is reduced.