Cartonboard boxes

Metallised PP/PP laminate (outer PP film reverse-printed with nylon-based resin ink) bag PP film (fuUy printed on outer surface) heat-sealed single packs packed in PP film heat-sealed multipack (partially printed on outer surface) Cartonboard boxes in PP film overwrap (coated on both surfaces with VdC copolymer)... 

Cartonboard box fully printed on outer surface Cartonboard box fully printed on outer surface... 

Fig. 18.1 Food/packaging configurations for transfer studies from secondary packaging to foods (Jickells et al., 2005) (a) chocolate-coated cream wafer bars single- and multi-pack format in corrugated board box (b) milk chocolate-coated wafer biscuits in cartonboard boxes (c) chocolate-coated ice-cream bars in cartonboard box (d) oatcake biscuits in cartonboard boxes (e) savoury crackers in cartonboard boxes (f) wheat biscuit breakfast cereal in cartonboard boxes (g) crisps (potato chips) in corrugated board box.

Paper was shown to be a poor barrier to transfer where there was a relatively narrow air gap between the secondary packaging and the food, i.e., wheat breakfast cereal in a paper wrapper inside a cartonboard box. A PP wrapper in the same situation reduced transfer by between three to 19-fold (three-fold for trichloroanisole and 2-ethylnaphthalene, 7-fold for diisopropyhiaphthalene and 19-fold for diisopropylnaphthalene at 200 days). 

Biscuits Polypropylene/aluminium/printing inks/polypropylene laminate Externally printed polyvinylidene chloride Polyethylene bag within a printed cartonboard box... 

Processed meat products Polyethylene bag within a printed cartonboard box Polyethylene/printing inks/polyester laminate Printed polyethylene to which a printed sticky label was applied Polypropylene container to which a printed sticky label was applied with a polystryrene lid... 

Fruit snacks Polyethylene/aluminium/printing inks/nitrocellulose coated laminate Polypropylene bag to which a printed sticky label was applied Cartonboard box printed on the external surface... 

The most extensive studies to date on transfer from secondary packaging to foods have been carried out by Jickells and co-workers (Jickells et al., 2005). These studies used combinations of food and packaging as would be used for retail sale. Cartonboard and corrugated board box were used in the study because they are used widely as secondary packaging materials. Model compounds (benzophenone, diheptyl phthalate, 2,6-diisopropylnaphthalene, 2,2-dimethoxyphenylacetophenone, 2-ethylnaphthalene and 2,4,6-... 

With wines available in bag-in-box and in cartonboard structures, and with interest in the packaging of beer in plastics, there is considerable scope for similar active packaging systems with these products. 

Cartonboard is a product with a wide range of basis weight of about 160 to more than 600 g m . Cartonboards have the highest share, about 80%, of the total paperboard production. Cartonboard is mainly used for production of carton boxes to... 

Boxboard/cartonboard used for the manufacturing of folding cartons and rigid set-up boxes... 

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