A single thread of Cordura rayon sailcloth, as used in the quadrilateral jib of America's 1937 cup defender Ranger, is unwound into the 390 filaments of which it is made. The microscope, magnifying them twenty five times, presents an unusual...
Lamp end of the absorption system of the ultra violet photometer shows a mercury lamp with glass envelope removed. Radiation from the lamp is rendered roughly parallel by condensing lenses of quartz and the light is reflected down the absorption...
Operator in a war industry plant inserts a ring of rayon packing into the stuffing box around the shaft of a water pump. The next step is to draw the gland of the stuffing box up finger tight.
Aging cans where treated pulp used in the manufacture of viscose process rayon is held for a definite period after it is shredded, an early step in the process at plants of E.I. du Pont Nemours & Company.
Aging cans where treated pulp used in the manufacture of viscose process rayon is held for a definite period after it is shredded, an early step in the process at plants of E.I. du Pont Nemours & Company.
An electric eye enables this ultraviolet photometer, at left, developed by scientist of DuPont's Rayon Technical Division and Electrochemicals Department, to see shadows of invisible vapors and gases in plant atmosphere. Here intake hose of...
Beauty of acetate is emphasized by its luxurious feel and graceful draping quality. Made in wide variety of fabrics, the acetate textiles in this photograph include tricots, taffeta, facone and satin.
The before and after of what take place with Fiber E when treated with a dilute solution of caustic soda. In the rug construction above-which can be produced by knitting or weaving-the long, loose loops at the left show the DuPont Company's newest...
A bias cross section of Cordura rayon sailcloth as used in the quadrilateral jib of Americas 1937 cup defender, Ranger, magnified sixty times y the microscope.
Equipment for blending cellulose acetate, an important step in the manufacture of Acele acetate rayon at the Waynesboro, Virginia plant of E.I du Pont Nemours & Company
Spinning rayon thread by the bobbin process at plants of E.I du Pont Nemours & Company. The thread, after being converted from liquid viscose in the chemical bath, is wound on the bobbins shown in the photograph.
General view of a bucket spinning machine at a rayon plant of E.I du Pont Nemours & Company. The white lines up the face of the machine are the rayon threads as they leave the chemical bath.
Surface scratches are buffed off spinnerets on this device, which uses a special mild abrasive. The procedure for cleaning and checking spinnerets is standard at all viscose process rayon yarn plants of E.I. du Pont Nemours & Company.
Cellulose xanthate after being dissolved to form liquid viscose is forced through filter presses that contain manifold layers of cotton sheeting, batting and canton flannel to remove any solid impurities. A press is being loaded with filter packs...
An endless procession of centrifugal dryers force water out of the yarn, after the washing and de-sulfuring operation at rayon plants of E.I du Pont Nemours & Company.
Bobbins of twisted yarn are checked on creel preparatory to winding on beam for weaving. Each individual strand, called an end, must be wound with meticulous care to insure steady feed in high speed weaving operation. Machine at DuPont's...
In addition to constant chemical checks on the process of manufacturing yarn at the viscose rayon plants of E.I. du Pont Nemours & Company, scrutiny is also given to such physical characteristics as the uniformity of denier, elongation, elasticity...
Flat sheets of dry wood pulp and cotton linters pulp are fed into a corrugator at the Richmond, Virginia plant of E.I du Pont Nemours & Company before they start the long chemical road to becoming rayon yarn.
