■tili! sustaining over 2000 lbs. of load, citrus Containers for cold storagc and strong oversize fibre boxes for shipping electric refrigerators, ice cream cabinets and "juke boxes." Folding cartons are making many novel uses of plastics and others are lined or covered with aluminum foil. The principal raw materials going into the pro- duction of paperboard are Southern kraft (for cor- rugated Containers) and high grade reclaimed paper, or "paper stock" as the trade refers to it. Naturally there are many other additives such as sizing, clay coating, wet strength chemicals, dyes and, of course, printing ink. Until recent years, most kraft came from Scandi- navia but today practically all of it comes from a string of modern mills scattercd over the South and West Coast, many of them costing more than ten million collecting and sorting agencies. The degree to which this sorting is carried out is illustrated by the fact that during the war the OPA listed ceiling prices and definitions for 32 different grades of paperstock. EARLY DEVELOPMENT The history of paperboard is a venerable one even though its great growth has been in the past half Century. The earliest books, hundreds of years ago, were bound in thick Covers made by pasting many sheets of paper together by hand hence the term "pasteboard." (These are now made in one Operation on a "wet machine" and are referred to as "binders board"). But for the next few centuries growth was very slow. The big impetus which came about fifty years ago was probably due to the phenomenon of Sootheschappe" Smallness of product requires a design so each stick is seen. dollars exclusive of attendant woodlands. At any given moment there are several new mills under construction in these areas and others are in the planning stage. RECLAIMED PAPER Paper stock comes primarily from metropolitan waste paper collection. Tremendous sorting rooms divide the mixture into different grades which are compressed into large bales and sold to the paper board mills. Some of these mills operate their own 20 r//y/ Four-color gravure-printed carton keeps pillow clean. package merchandising. Smaller homes and fam- ihes, national advertising and the desire for sanitary, branded products have put nearly all of our neces- sities into packages, many made of paperboard. These, in turn, are shippcd in fibre Containers rather than in heavy wooden boxes and barreis. Then came the super-market era with 110 clerk to push one brand over another. Fhis provided a ficld day for the folding box and other types of shelf packages and the paperboard industry was quick to realize the implications. The package had to seil itself and this has been accomplished by a beautiful ex-

Print Magazine en | 1953 | | page 22