|Imerys Minerals Ltd.|
Food PackagingBarrier Film
ClayAl2O3 • 2SiO2 • 2H2O Nanoparticle /Nanopowder CAS Number : 1332-58-7
Imerys has developed new water-based barrier coatings using novel kaolins as part of the BARRISURF™ product line. These hyper-platy crystals create a tortuous path for moisture, oil, grease and oxygen transmission. With the rising cost of polymers, incorporating Imerys BARRISURF™ kaolins in a formulation is a cost effective route to deliver superior barrier performance. arrowMoisture resistance (water or vapour); corrugated cases, multi-wall sacks, folding cartons, liquid containers arrowOil and grease resistant;Packaging product treated with a water based barrier coating corrugated cases, bags, folding cartons, fast food applications arrowAroma barrier; food packaging, (gas barrier ie Oxygen, Nitrogen, Carbon dioxide, or microorganism barrier)
The concept of water based barrier coatings is straightforward – they keep contents in, the external atmosphere out, and help maintain the strength of paper and board packaging by preventing moisture / grease absorbtion.Water based barrier coatings are water-based dispersions of film-forming polymer(s), additives and pigments.
The advantages of using pigment-filled water-based barrier coatings compared with unfilled coatings are improvements in barrier properties, optical properties, runnability, blocking resistance, and cost effectiveness.
Water-based barrier coatings give useful properties when applied to paper and paperboard. These properties and end uses that can benefit from them