35—COTTON YARN STRUCTURE: Part V—THE RELATION BETWEEN STRENGTH MEASUREMENTS MADE ON FIBRES, FIBRE BUNDLES, YARNS, AND CLOTH

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Abstract
Breaking lengths are given for four cottons in a variety of structures ranging from single fibres to cloths, and factors determining the effect of structure on breaking length, are discussed. The structures or tests, ranked in order of decreasing breaking length, are: single fibres, 1 mm test length; Pressley parallel bundle; single fibres, 1 cm test length; twisted yarn element and single thread test on cabled yarn; cloth weft strip and single thread test on single yarn; lea test on single yarn. The general level of breaking length decreases and the proportionate effect of structure increases as the cotton quality is lowered. The influence of structure is greater than that of the basic strength of the fibres.