Minipak Reduces Cold Seal, Improves Efficiency


Minipak reduces the amount of cold seal required while improving operational efficiency.

So the next question is, how is this accomplished?

Improved cold seal application is achieved using new ESA technology (Electrostatic Assist or Electrostatic Printing Assist) commissioned in Minipak’s Bogota, Colombia, plant in mid-2020 on a new Bobst rotogravure printer. The technology allows for three (3) processes to be applied simultaneously on a single machine — print, lamination and cold seal.

ESA technology also allows a rotogravure cylinder to use less cold seal and less ink, yielding a greater or complete transfer of adhesive and ink onto the printed substrate.

To build on this ESA technology, for more than 30 years, Minipak has been producing cold seal packaging films for the confectionery and nutrition bar markets around the world. During this time we have discovered additional cold seal technologies that improve the clients operational effectiveness.

Cold seal packaging offers manufacturers numerous benefits:

  • Increased production. Cold sealers can increase packaging line speeds up to 10x that of a heat sealer.
  • Cold seal packaging can be accomplished on existing heat seal packaging equipment.
  • Less heat results in a multitude of benefits. Less energy cost = lowered carbon footprints, less downtime waiting for heat on the packaging line to be controlled, less operational controls, fewer operator burns, and less damaged/overheated/burned packages.
  • Improved sealing without the aggression required from the use of heat seal jaws. A cold seal brings the substrates together in more of a “kissing” fashion.
  • Improved and consistent cold sealing yields an increase in the product’s shelf life.
  • 5% reduction in the size of the packaging. When a product uses a heat seal, the package shrinks due to the heat. Using a cold seal eliminates this shrinkage.

For more information, please contact:

Jared Kohl
[email protected]