The carton’s sustainability attributes start, however, with the main substrate. The original One Clean Carton paperboard from Clearwater Paper is a solid bleached sulphate (SBS) stock that uses Candesce CIS virgin fibers with no mechanical pulp in a middle ply. The latest PCR version, also from Clearwater Paper, is made with ReMagine, a premium paperboard with 30% post-consumer recycled fiber.
According to Colbert, both substrates offer superior print performance for quality aesthetics, but they also result in less waste and lower consumption of raw materials and ink.
Both substrates were evaluated for safety in 2021 (Colbert retested the SBS version) and both passed these analytical tests, according to the company: