An effect of suint on sheep wool impedance and heat resistance values
Paulina Cholewińska , Marta Michalak , Deta Łuczycka , Katarzyna Czyż
AbstractThe phenomenon of impedance finds an application in many areas of science; however, no studies relate to wool. Thus, the aim of the study was an examination of an effect of from the presence of suint layer on sheep wool fibers on impedance and heat resistance values. Electrical characteristics (impedance [Ω]) and heat resistance were compared in terms of wool washing effect. The impedance of wool samples was tested in the frequency range of 10 Hz to 1 MHz. In order to measure electrical characteristics and heat resistance values, five samples of greasy wool were collected from different sheep breeds, standardized by weight. After the analyses, the samples were washed and reexamined. The results showed significant differences in the impedance between the greasy and washed wool samples in each of the tested breed (p > 0.05). The suint layer reduces the impedance level, which was also confirmed by a heat resistance test results demonstrating that absence of suint layer on wool fibers significantly reduced this feature value (p > 0.05). This was also reflected in the weight differences between the examined wool samples before and after their washing.
|Journal series||Journal of Natural Fibers, ISSN 1544-0478, (N/A 40 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||Electric impedance; Specific heat; Washing; Wool; Wool fibers; Yarn, Electrical characteristic; Feature values; Frequency ranges; Resistance values; sheep; Suint; Weight difference; Wool washing, Heat resistance|
|Internal identifier||66250; PX-5e3ab777d5de0e2d83634965; PX-5e3ab4acd5de0e2d836347dd|
|Score||= 40.0, 15-09-2020, ArticleFromJournal|
|Publication indicators||= 2; = 2; : 2018 = 0.752; : 2018 = 1.252 (2) - 2018=1.289 (5)|
|Citation count*||3 (2020-09-17)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.