The Effective Method for Preparing Textile Materials from “Porlok” Cotton Fiber Varieties
Abstract:
To ensure high competitiveness of cotton products in Uzbekistan, modern approaches are used to increase the yield and quality of cotton fiber. Gene knockout is a technology developed by Uzbek scientists and patented in many cotton-growing countries, which made it possi-ble to create unique varieties of genetically modified cotton of the Porlock (P) series with improved characteristics both in terms of cul-tivation and vegetation, and in terms of fiber quality. New genetically modified selection varieties of cotton fiber, having distinctive struc-tural and volumetric properties compared to zoned varieties, require certain changes in the technology of chemical finishing. Technological parameters of the processes of preparation for chemical finishing have been developed considering the structural and sorption properties of textile materials based on selected varieties of cotton fiber "Porlock". Eco nomical technological modes and compositions of baths for preparation for dyeing and printing for textile materials (yarn and fabric) from new varieties of cotton fiber considering their structural features have been proposed. The technological mode of preparation for dyeing of cotton yarn of the selection varieties "P-2" and "P-4" has been put into practice at the enterprise LLC "OSBORN TEXTILE". As a result, high whiteness, capillarity and improved phys-ical and mechanical properties were ensured considering the structural features of cotton yarn. The process of preparing yarn from the P-2 selection variety with a denser structure for dyeing requires relatively high concen trations of an alkaline agent (up to 10%) and a low con-centration of hydrogen peroxide (up to 17%), while the P-4 selection variety with high volume properties requires a smaller amount of an alkaline agent (by 20%).
