A. Riley, Arthur Riley Packaging Consultant International, UK
Paper and paperboard are made from cellulose fibres, extracted from trees, combined together with additives to make a continuous matted web. This chapter covers the raw materials, processes and on- and off-line treatments used to manufacture fibrous substrates (paper and paperboard) used for the conversion into packaging components. These components include wrapping materials, bags, sacks, cartons, tubs, lids, moulded fibre packaging, and backing cards for various plastic, paper and paperboard combinations. This chapter will also discuss the different substrates, conversion methods and decorating methods.