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Holding Length: Effect on Digital Fibrograph Span Length

USDA, ARS, Southern Regional Research Center, New Orleans, Louisiana 70179, U.S.A.

Devron P. Thibodeaux

USDA, ARS, Southern Regional Research Center, New Orleans, Louisiana 70179, U.S.A.

Fibers scanned for length by most instruments must be held in position for the scan. The holding length has been determined mathematically as being of the order of 4.06 mm ( 0.16 in.). Since the start of scan begins at 3.81 mm (0.15 in.) from the holding edge, the average start of scan actually begins at a length of 7.87 mm (0.31 in.). A general holding length is shown with a photomicrograph. Applying this concept to data presented in the literature gives acceptable results in all but one case. The holding length appears to be a function of fiber rigidity, which means that it varies.

Textile Research Journal, Vol. 60, No. 7, 383-388 (1990)
DOI: 10.1177/004051759006000703


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