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  • View of control board
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    Manufacture of Dyes and Dyeing Methods
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    Control board used in connection with the manufacture of an intermediate at the Dye Works.
  • DuPont Product Information Photographs
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  • View of sulfonators
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    Manufacture of Dyes and Dyeing Methods
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    Sulfonators used in the manufacture of intermediates at the Deepwater Point, New Jersey plant.
  • DuPont Product Information Photographs
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  • A view of the pad steam process
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    Manufacture of Dyes and Dyeing Methods
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    A pad steam process developed by the DuPont Company's Dyestuffs Division, provides an economical method for continuous application of vat dyes to relatively small quantities of fine fabrics. A working model of the apparatus is here being...
  • DuPont Product Information Photographs
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  • View of the Barotor
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    Manufacture of Dyes and Dyeing Methods
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    The Barotor, developed by DuPont research and produced commercially under license by manufacturers of dyeing equipment for rapid dyeing of large yardages of fabric under pressure, is typical of accomplishments of DuPont's $6 million Textile...
  • DuPont Product Information Photographs
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  • View of Pad Steam process
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    Manufacture of Dyes and Dyeing Methods
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    Economical method for continuous application of vat dyes to large or small quantities of fine fabrics is provided by the Pad Steam process, developed by the DuPont Company's Dyestuffs Division. This working model of the apparatus is being operated...
  • DuPont Product Information Photographs
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  • View of Multi Lap machine
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    Manufacture of Dyes and Dyeing Methods
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    Vat dyes may be conveniently applied to a wider variety of fabrics than ever before by means of the Multi Lap machine, developed by the DuPont Company's Dyestuffs Division. The fabric is carried into and out of the dye bath a number of times on an...
  • DuPont Product Information Photographs
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  • Working model of Multi Lap machine
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    Manufacture of Dyes and Dyeing Methods
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    Vat dyes may be conveniently applied to a wider variety of fabrics than ever before by means of the Multi Lap machine, developed by the DuPont Company's Dyestuffs Division. A working model of the machine is being demonstrated here by William M....
  • DuPont Product Information Photographs
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  • Section of the vat color chemical control laboratory
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    Manufacture of Dyes and Dyeing Methods
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    This image shows a section of the vat color chemical control laboratory at the dye works. Vat colors are the fastest coloring agent known to modern science and are used on cotton, viscose process rayon and linen. In general, these colors are the...
  • DuPont Product Information Photographs
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  • Magnified view of blue vat dye
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    Manufacture of Dyes and Dyeing Methods
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    A blue vat dye made by the Organic Chemicals Department of the DuPont Company, looks like this when magnified 32,000 times by an electron microscope.
  • DuPont Product Information Photographs
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  • Testing dyes and fabrics
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    Manufacture of Dyes and Dyeing Methods
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    For the most part, textile fibers-natural and man made- have wide varying physical and chemical properties. The differences are apparent in the types of dye which adhere to the fibers. By mixing or blending fibers with different dyeing...
  • DuPont Product Information Photographs
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  • Beating paper pulp
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    Manufacture of Dyes and Dyeing Methods
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    Beating paper pulp at the Technical Laboratory, Dyestuffs Division.
  • DuPont Product Information Photographs
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  • View of paper sheet mold
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    Manufacture of Dyes and Dyeing Methods
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    At left a paper sheet mold used for making paper, showing a sheet of dyed paper about to be taken from the mold. At right a hydraulic press used to press water out of the paper. Equipment at the Technical Laboratory, Dyestuff Division.
  • DuPont Product Information Photographs
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  • Paper machine
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    Manufacture of Dyes and Dyeing Methods
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    A miniature single cylinder paper machine. The box at the far right contains the coloring agent and the furnish, composed of either wood pulp or rag stock, depending upon the type and quality of paper desired. The subsequent option is comparable to...
  • DuPont Product Information Photographs
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  • Paper making machine
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    Manufacture of Dyes and Dyeing Methods
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    Paper making machine processing paper from the pulp to the finished sheet in the Technical Laboratory, Dyestuffs Division. A strip of paper made in the machine can be seen wound over the drum at the right.
  • DuPont Product Information Photographs
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  • Drying samples of paper made in the Technical Laboraroty Dyestuffs Division.
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    Manufacture of Dyes and Dyeing Methods
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  • DuPont Product Information Photographs
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  • Removing color paste
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    Manufacture of Dyes and Dyeing Methods
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    Color paste being removed from plate and frame filter press at the Dye Works.
  • DuPont Product Information Photographs
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  • View of chlorine cell room
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    Manufacture of Dyes and Dyeing Methods
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    Chlorine cell room at the DuPont plant at Deepwater Point, New Jersey. The workmen re making regular tests.
  • DuPont Product Information Photographs
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  • View of color paste
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    Manufacture of Dyes and Dyeing Methods
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    Color paste ready to go into the air dryers at the Dye Works of DuPont.
  • DuPont Product Information Photographs
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  • Adding salt
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    Manufacture of Dyes and Dyeing Methods
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    At DuPont's Chamber Works a dye worker adds salt to dye solution from huge hoppers. The salt isolates the dye from the water in which it is mixed. Tons of ice control the solution at proper low temperature.
  • DuPont Product Information Photographs
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  • Dyestuffs intermediate still
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    Manufacture of Dyes and Dyeing Methods
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    Dyestuffs intermediate still, showing gauge and chart control at the Dye Works.
  • DuPont Product Information Photographs

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