When choosing packaging materials for the cooling agent, many customers face the challenge of combining sustainability and functionality. In this comparison, we focus on LDPE film and KRAFT film, examining the appearance of sustainability and placing the materials along the sustainability ladder.
LDPE is easy to recycle
DPE is a widely used material in the packaging industry because of its flexibility, transparency and low cost. An important aspect of sustainability is the material’s recyclability. LDPE film is relatively easy to recycle through the usual plastic waste streams, making it seem like an environmentally friendly choice. Coolpacks Sales Lead Bart Kroes stresses that recycling LDPE film is more efficient than it seems based on the sustainable image of KRAFT film. In practice, it has been observed that the KRAFT gel pack often ends up in residual waste after use, which calls into question the sustainability of the material. He therefore recommends the use of LDPE film as a more practical and sustainable option.
KRAFT appears to be sustainable, but looks are deceiving
KRAFT has a natural and robust appearance and attracts many customers striving for sustainable packaging. However, as Bart Kroes points out, appearances can be deceiving. The KRAFT gel pack, despite its eco-friendly appearance, turns out to be less sustainable than it appears at first glance. A critical issue is the lack of efficient options for recycling KRAFT film. As the material consists of several layers pf material, it cannot be easily processed after use. The layers of the material have to be separated to go along with the separated waste streams. As a result, the whole package often ends up in general waste, which has a negative impact on the environment.
LDPE trumps KRAFT
When comparing LDPE’s and KRAFT’s sustainable features, it is crystal clear that KRAFT’s sustainable claims do not match use in real life. LDPE film, because of its easy recyclability, has a better sustainable score. Avoiding waste and promoting recycling are essential aspects of a sustainable cold chain. In addition, the life cycle of the packaging plays a role. While LDPE film can be efficiently recycled and reused, KRAFT often lags behind in terms of reusability and long-term sustainability.
When pursuing sustainability in the cold chain, it is crucial to look beyond the superficial characteristics of materials and opt for options that actually contribute to a circular and environmentally friendly approach. LDPE film clearly comes out on top when both films are put along the sustainability ladder. “This is why, when asked for the most sustainable solution, we always recommend LDPE film,” explains Bart Kroes. “It’s a matter of principe; the importance of a greener future outweighs the appearance of sustainability.”
