Standard Methods for Closing,Sealing and ReinforcingFiberboard BoxesIn this presentation we shall discuss thevarious methods used for closing, sealing andreinforcing fiberboard shipping boxes forshipmentA) MATERIALS AND EQUIPMENTSAdhesives Hot Melt Adhesives these are solid at roomtemperature, liquified by heat, applied molten, andsolid upon cooling to bond two surfaces. They arebased on thermoplastic polymers modified with resinsor waxes, or both, and are usually applied in the rangeof approximately 300 to 400F. Water-Borne Adhesives are typically applied at roomtemperature and the surfaces are compressed togetheruntil the adhesive develops sufficient strength tomaintain substrate contact with water as the solvent.Tapes Pressure-Sensitive Tape, Film-Backed Tape this tapeconsists of a film backing, usually a biaxially orientedpolylpropylene or polyester with a high tack pressuresensitive adhesive. It doesnt require any solvents,heat, or moistening. Pressure-Sensitive Filament Tape this tape typicallyconsists of fiberglass filaments embedded in apressure-sensitive adhesive with a protective filmbacking . Pressure-Sensitive Paper Tape this tape has a backingof kraft paper and a pressure-sensitive adhesive.Gummed Tape Reinforced Gummed Tapes this type of tapehas a water activated adhesive and containsglass reinforcing fibers embedded betweentwo sheets of paper, using nonasphalticbinders. ...
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