Abstract
Damage caused to wool in the carbonizing process can be assessed by methods such as alkali solubility or by determining the loss in tensile strength of the yarns and fabrics so produced. These tests are reliable and reproducible, but they are time consuming and provide a result some five or more hours after the process is complete. It is then too late to adjust the process variables so as to minimize the damage to the wool. A rapid and sensitive test is described, which is based on the ninhydrin reaction with peptides and is able to measure the damage within only 10 minutes of sampling the carbonized wool immediately after baking. The results correlate well with both alkali solubility and tensile strength test methods. The new test procedure allows for the possibility of an "on-line" method of controlling damage in the wool carbonizing process.
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