High material efficiency

An egg is a great example of nature’s excellent packing skills. Although an eggshell is extremely fragile, its unusual dome-shaped end makes it a “tough nut to crack” when you squeeze its ends between the palms of your hands. The eggshell is only about 0.3 mm thick and the ratio of eggshell to total egg weight is around 1:10. Paper sacks are even more efficient packaging solutions because of their natural properties. Depending on the product, the weight ratio of a paper sack to its contents can be up to 1:250.

Thanks to our continuous performance improvements, the material efficiency of paper sacks has been greatly enhanced in recent years:

  • The paper requirement per sack has been reduced by 25% over the past two decades, resulting in considerable reductions in costs and natural resources.
  • The strength of sack kraft paper has been optimised by 45% over the same period. Today, just 100 g of paper can hold up to 25 kg of filling material. Hardly any other packaging product can achieve this level of efficiency.

Besides their material benefits, paper sacks also offer advantages in terms of process and cost efficiency:

  • High-porosity paper enables rapid, problem-free venting during filling, without the need for complex and costly air extraction systems. The porosity of sack kraft paper has risen by almost 30% in the last two decades.
  • This makes it possible to achieve filling speeds of up to 6,000 sacks per hour, compared with 2,000 sacks per hour for non-paper sacks.

“The most efficient packaging solution”

The natural properties of paper sacks offer considerable efficiency advantages, resulting in lower total costs, as well as smoother and quicker processes ... Read more

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