HDPE, what is it and what can it do for you?
HDPE film, or high-density polyethylene film, is a linear polymer prepared from ethylene by a catalytic process. High-density polyethylene is just that, a high density, closely packed structure with a somewhat higher chemical structure than low-density polyethylene film (LDPE).
So why choose HDPE?
The advantages alone can answer why. HDPE film is an extremely versatile material with advantages such as non-blocking characteristics in addition to added stiffness, impact and wear resistance, flexibility, anti-static properties, chemical resistance, food contact acceptability, processability, and toughness. Another benefit of HDPE film is that it is harder, more opaque, and can withstand rather higher temperatures than LDPE film. HDPE also has advantages in many machine applications such as Pearson’s automated insertion machines, OK International’s packaging automation systems, and K&R’s polybag inserter systems. These machines place the bags in cases or shipping containers with even cuffs around the flaps.
With LDPE blocking can occur, which stops production and causes downtime. Neither of which you want on high-speed packaging lines. However, HDPE homopolymer resins are linear in nature and these polyethylene high-density film resins exhibit hard, slippery surfaces that resist blocking. Therefore, with HDPE film you don’t have stops in production or downtime. The bottom line is that bag inserter lines love HDPE’s nonblocking, stiffer film characteristics. And for an added benefit, polyethylene high-density film has a lower moisture and oxygen transmission rate, which allows for longer product freshness.
If you weren’t aware of high-density polyethylene (HDPE) and its advantages before, I bet you’re glad you are now. Contact us today to place your oder!
Bag inserter line