Sealing Paper Packaging Without Adhesives

(fraunhofer.de)

23 points | by gnabgib 3 hours ago

3 comments

  • fritzo 32 minutes ago

    I've also seen a glue-less paper binding trick where two pieces of paper are finely crimped together with some high pressure tool in alternating v^v^v^ patterns, actually making tiny tears in the paper. Does anyone know what kind of tool does that?

    • RobotToaster 20 minutes ago

      I guess string was too complicated?

      • adolph 38 minutes ago

        That is really neat:

          “By irradiating the paper with a CO laser, we create refusible, sugar-like 
          reaction products that we use instead of the synthetic materials or adhesives 
          that would otherwise be required to seal the paper by the heat sealing 
          process. In this way, we are essentially producing our own adhesive"