Fabric Uniformity from Top Blending of Wool with Rayon or Nylon
1953
Macormac, Alfred R. | Reed, Harriet Harvey
To determine the uniformity attained by top blending, fibers were counted in samples of finished fabrics made of eight blends of 3-den. rayon or nylon with coarse or medium wools. The composition by number of fibers was then converted into composition by weight. The re sults agree with the manufacturing specification and with chemical analyses by the potassium hy droxide method. The average of samples consisting of at least 500 fibers indicates that the blending is uniform. When fibers of different diameter and density are blended, the composition by number of fibers differs markedly from the composition by weight, as would be expected. The composition by number of fibers is a factor in the dyeing, finishing, and hand of the finished fabric and should be taken into consideration in the manufacture of blended fabrics.
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