Meaning
Loss of pigment intensity in paperboard packaging occurs when exposed to natural or artificial light sources over extended periods. The phenomenon of folding carton fading changes the visual appearance of product boxes stored in retail displays or warehouse environments. This degradation process stops being a factor once the product is purchased and removed from the retail floor.
Understanding how ink formulations react to fluorescent lights helps packaging engineers select raw materials that will maintain brand colors for the entire duration of the planned retail campaign.
Exposure Effect
Color changes occur when light photons break down the chemical bonds of ink pigments on the carton surface. During folding carton fading, critical brand elements can become distorted or unappealing to shoppers. Retailing brands must ensure their packaging maintains visual consistency for at least six months under typical store lighting.
Material Choice
Printers select specific inks with high lightfastness ratings to prevent premature color loss. Avoiding folding carton fading requires a careful balance between the cost of premium pigments and the expected shelf life of the packaged product. Testing under accelerated weathering chambers helps determine the optimal combination of varnish and ink before mass production.
Financial Liability
Suppliers face chargebacks if the packaging deteriorates before the guaranteed display period expires. If folding carton fading renders the stock unsellable, the retailer may issue a debit note to recover the lost margin. Clear performance clauses in the supply agreement assign these costs to either the printer or the brand owner depending on the specified lighting conditions.
