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Manufacturing Process of corrugated cardboard production line
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Corrugated fiberboard, also called corrugated cardboard • Corrugated board is manufactured on large high-precision machinery lines called corrugators • The key raw material in corrugating is paper, different grades for each layer making up the corrugated box. Due to supply chain and scale considerations, paper is produced in separate plants called paper mills. Most corrugating plants keep an inventory of paper reels. • In the classical corrugator, the paper is softened with high-pressure steam. After the board is formed it is dried in the so-called dry-end. Here the newly formed corrugated board is heated from the bottom by hot plates. On the top, various pressures are applied by a load system on the belt. • The corrugated medium is often 130 grams per square metre basis weight in the US; in the UK, a 90 grams per square metre (0.018 lb/sq ft) fluting paper is common. At the single-facer, it is heated, moistened, and formed into a fluted pattern on geared wheels. This is joined to a flat linerboard with a starch based adhesive to form single face board. At the double-backer, a second flat linerboard is adhered to the other side of the fluted medium to form single wall corrugated board. Linerboards are test liners (recycled paper) or kraft paperboard (of various grades). The liner may be bleached white, mottled white, colored, or preprinted. • box maker with paper roll how to make paper box • Common flute sizes are A , B , C , E and F or microflute. The letter designation relates to the order that the flutes were invented, not the relative sizes. Flute size refers to the number of flutes per linear foot, although the actual flute dimensions for different corrugator manufacturers may vary slightly. Measuring the number of flutes per linear foot is a more reliable method of identifying flute size than measuring board thickness, which can vary due to manufacturing conditions. The most common flute size in corrugated boxes is C flute. • #packaging#cardboard#corrugated box manufacturing process#packaging boxes manufacturing#box manufacturing,corrugated box manufacturing,boxes manufacturing factory,cardboard boxes manufacturing,cardboard boxes,amazing manufacturing process,corrugated box,carton box,boxes,how it’s made boxes,how it’s made corrugated boxes,corrugated box making machine
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