With the increase in use of post-consumer recycled resin, there is a growing need for additive and processing solutions to remove offensive odours. Malodours in plastic parts can come from a wide range of sources, including degradation products from plastic resin or, in the case of recycled plastics, from degraded polymer, degraded inks, or the previous contents of the package, for example. Eliminating odour is key for the consumer to accept the product. One solution is to mask the odour with a strong but pleasant fragrance. In many cases, however, masking is not enough, and the malodour must be removed via processing or additive technologies.

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