Kraft paper bag without any metal
When it comes to kraft paper bag, usually there will be a metal or metallized layer, which is intended to provide a high barrier performance for the package, so the… Read more »
Tag: kraft paper
Airtight property test on kraft paper zipperlock pouch
Kraft paper zipperlock pouch is widely used for snacks, dry nuts, coffee beans and tea products packaging ,and we are going to do test on the airtight property