InMat claims that its new Nanolok WR coatings provide ‘a significant advance’ in the performance of water based high barrier nanocomposite coatings
Nanolok WR 20135a is said to provide high oxygen barrier over the widest relative humidity range currently available in water-based nanocomposites. A one micron coating ‘will provide an oxygen barrier more than four times better than that of PVdC coated PET at relative humidity from 0-80%, and is still almost twice as good at 85% RH’ states InMat. It is also said to provide similar moisture barrier to that of PVdC coated PET when tested at 85RH and 40°C, up to 10 times better oxygen barrier than EVOH (EVAL E) and 40 times better moisture barrier.
It is claimed that Nanolok WR 301409 provides ‘a new level of direct adhesion’ to a wide variety of flexible packaging films, including many polyolefins. This will enable users to reduce the number of layers in their barrier packaging. In addition to excellent resistance to incidental contact with water, it is said to maintain its barrier properties after top coating and or application of water-based inks.
The new coatings are said to contain no solvents or hazardous materials and are appropriate for food packaging applications.
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