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Sack kraft papers

Nertop Kraft Standard

Nertop Kraft Standard is produced from 100% unbleached virgin softwood fibres and an ideal sustainable packaging solution on high pressure and high speed filling, and high tensile strength in MD is needed.

Nertop Kraft Standard is produced from 100% unbleached virgin softwood fibres and an ideal sustainable packaging solution on high pressure and high speed filling, and high tensile strength in MD is needed.

What are the technical characteristics of this product?

  • Weight range: 70 to 100gsm.
  • Mostly used for open mouth sacks.
  • Available additionally in Wet Strength (WS) option for wet contact products and as Liner Kraft for valve construction in valve sacks.
  • Can be used safely for various food packaging types. For detailed declarations please contact us.

What is this product commonly used for?

  • Food, pet food and animal feed
  • Chemicals and minerals
  • Compost

A guaranteed supply from a trusted source

Our certified Chain of Custody is your guarantee of a verifiably sustainable packaging supply chain. 

At Smurfit Kappa we understand the importance of sustainability in everything we do, and see it as our responsibility to ensure the products we supply to our customers meet the highest chain of custody standards. 

  • 100% of paper produced and sourced for our packaging solutions is FSC®, PEFC™ or SFI™ Chain of Custody certified 
  • 90% of packaging supplied to customers is FSC®, PEFC™ or SFI™ Chain of Custody certified


Look out for our stamp of proof on your invoice to give you total peace of mind around the origin of your paper-based packaging. 

Learn more about Chain of Custody.

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