GCM 746 Lecture Notes - Lecture 8: Paperboard, Lithography, Polystyrene
22 May 2020
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In theory, picking an eco-material is a better move than picking an un-eco one Material properties life cycle scenarios (e. g. distribution, end-of-life, etc. ) Packaging failure (physical and chemical damages) is the worst outcome from a sustainability perspective. Let"s review materials & material selection: paper and forest products. One of the most used packaging materials. Produced by extracting and pressing cellulose fibers. Solid bleached board (sbb): paperboard made from virgin bleached chemical pulp. Also called sbs or solid bleached sulphate. Solid unbleached board (sub): paperboard made mainly from unbleached virgin chemical pulp. Also called sus or solid unbleached sulphate. A layer of bleached fiber is sometimes added to the top to provide greater whiteness. Folding boxboard (fbb): made from a layer or layers of mainly virgin mechanical pulp sandwiched between layers of virgin chemical pulp. White lined chipboard (wlc): made from multi-layers of recycled fibers. Layered composite material consisting of solid bleached board and a polymer, typically low-density polyethylene (ldpe)
