Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: test yearns

Sortuj według:

Ogranicz wyniki do:

Selecting method and test conditions for accurate determination of yarn twist

Czaplicki Z.

Zeszyty Naukowe. Włókiennictwo / Politechnika Łódzka

2000

z. 59

175-188

In the paper are presented the results of tests of twist in cotton, viscose, woollen, and bast-fibre (flax, hemp, jute) test yarns. The following methods were tested: `untwisting to parallel`; `direct counting`; and `untwisting and twisting in reverse direction` (reverse twisting). The first two methods were used to determine the real values of twist. Using the real values, were determined the optimum values of yarn pre-tension at which the values of twist obtained by the reverse-twisting method were the same as those determined by the untwisting-to-parallel and direct-counting methods.