Packaging Material Now
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Sprayed on to Products THE new plastic packaging, Cocoon, was shown to business representatives from all parts of the country at a special demonstration in Bradford, last week. Invented by an American scientist, it is based on modified filmforming resins carried in volatile solvents, and was used extensively during the war by the American. services in packing arms and equipment.
At the Bradford works of H. D. Shaw and Co., Ltd., Harris Street. machinery lent by the G.P.O. spares department, Birmingham, was packaged. The resin was applied by means of a spray gun, which is the normal method; although in some cases dipping, is preferable.
The initial application from the spray gun produced long, cobweb-like filaments, which, gradually built up a thin translucent film around the machine. After further spraying with Cocoon solution; a hole was cut in the package to release the solvent vapours, and a suitable desiccant distributed inside.
The hole was then. patched with. Cocoon material and a final coating applied. The package, completely sealed, was ready for immediate shipment or storage in ready-to-use condition.
The product has been acquired for the world market (outside U.S.A. and Canada) by R. A. Brand and Co., Ltd., 38, Long Lane, London, S.E.1, which gave the demonstration in conjunction with Joseph Benn (1930), Ltd., Bradford. The various resins are being produced in Manchester, and the product will be available for the home market next January.
Laboratory tests have shown that a Cocoon package, which is not readily inflammable; is seven times as tough as