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  • Description: trays
(11 results)



Display: 20

    • Preparing bristle

    • Toothbrush Manufacture (pre-nylon) and Manufacture of Nylon Bristles
    • Bundles of raw bristle, used in the manufacture of toothbrushes, are first washed, bleached and sterilized and then dried thoroughly at the Leominster, Massachusetts plant of E.I. du Pont Nemours & Company. Trays of bundles of bristles are seen...
    • Testing with Alathon

    • Alathon'
    • This is one of three pictures that show why paper, coated with Alathon polythene resin, can be used for packaging materials that are highly acidic or corrosive in nature. Concentrate sulfuric acid was poured into two trays, one coated with Alathon...
    • Testing Alathon coating

    • Alathon (and Plastics)
    • This is one of three pictures that show why paper. Coated with Alathon polythene resin, can be used for packaging materials that are highly acidic or corrosive in nature. A laboratory technician at the DuPont Company's Experimental Station in...
    • Testing with Alathon

    • Alathon'
    • This is one of three pictures that show why paper, coated with Alathon polythene resin, can be used for packaging materials that are highly acidic or corrosive in nature. Concentrate sulfuric acid was poured into two trays, one coated with Alathon...
    • Collecting mud

    • Guadalupe River Project Victoria, Texas
    • Mud from bottom is collected in dredge, rear, then washed in trays so scientists can study worms and snails living in the stream bed. They show first effects of any pollution. An incinerator and evaporation basins were built and two mile deep wells...
    • Spinnerets

    • Manufacturing process of acetate rayon
    • Spinnerets, after turning out filaments or yarn for specified periods, are taken to a laboratory for cleaning and checking, a standard procedure to guard the quality and uniformity of rayon yarn made at the plants of E.I du Pont Nemours & Company....
    • Spinnerets

    • Viscose Process of Manufacturing Rayon
    • Spinnerets, after turning out filaments or yarn for specified periods, are taken to a laboratory for cleaning and checking, a standard procedure to guard the quality and uniformity of rayon yarn made at the plants of E.I du Pont Nemours & Company....
    • Spinnerets

    • Viscose Process of Manufacturing Rayon
    • After a water pressure washing, trays of spinnerets are place in a high temperature oven to bake out stubborn solidified formations of viscose that were not removed in the bath. The procedure for cleaning and checking spinnerets is standard at all...
    • Inspecting and cutting

    • X-Ray Film
    • In the final step before x-ray film is inspected and cut into sheets at DuPont's new multi-million dollar plant in Brevard, North Carolina an operator splices the trailing edges of one roll to the leading edge of another roll. Sheets meeting...
    • Drying dye cakes

    • Manufacture of Dyes and Dyeing Methods
    • A dye worker at DuPont's Chambers Works is shown placing dye cake in trays for drying, after the cake has been removed from a filter press. After grinding, testing and standardizing, the product is ready for shipping.

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