2024_31/2

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https://dspace.tul.cz/handle/15240/175340

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Browsing 2024_31/2 by Author "Andronov, Vladimir"

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    THE EFFECT OF ELECTRIC PULSE TREATMENT ON THE PROPERTIES OF HEMP FIBRE
    (Technical University of Liberec, ) Rastorhuieva, Mariia; Yevtushenko, Valentyna; Shvets, Galina; Andronov, Vladimir; Danchenko, Yuliya; Olijnyk, Halina; Technická univerzita v Liberci
    The production of competitive textile products can be ensured by using natural, environmentally friendly fibres, which include hemp fibre, as raw materials. To expand the possibility of its use, an essential operation is the pre-treatment of the fibre. The use of electric pulse processing of hemp fibre will provide the ability to control the depth of cottonization, select optimal parameters that collectively evaluate the spinning ability of the fibre and correspond to the permissible similar indicators of cotton fibre. The purpose of the work done is to study the mechanism of electric pulse processing of hemp fibre by identifying its structural characteristics under various processing modes for further use. The work carried out studies of the process of cottonization of hemp fibre by a physical-mechanical method using an electric pulse discharge from 500 to 2500 cycles. An effective mode of electric pulse processing of fibres has been established, amounting to 2500 pulses of electric discharges, which makes it possible to obtain cottonized hemp fibre with the required spinning ability. The parameters of cottonized hemp fibre have been determined, allowing the use of hemp cottonin to produce mixed yarn using a card spinning system on cotton spinning equipment.