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2 2020

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Sustainable Approach for Mélange Yarn Manufacturers by Recycling Dyed Fibre Waste

Wang Hua, Memon Hafeezullah, Abro Rashid, Shah Asif

Fibres & Textiles in Eastern Europe

2020

Vol. 28, no. 3 (141)

18--22

The aim of this paper is to study a sustainable approach of recycling different fibre waste for the mélange yarn industry and to suggest a sustainable strategy of mixing dyed fibre waste for use by yarn supply chain engineers. Fibre waste was added to a Blow room or draw frame and compared in terms of properties. It was found that the mechanical properties of cotton mélange yarn manufactured by adding waste are suitable to be marketed. Various qualitative parameters such as the spun length, tenacity, elongation %, short fibre index (SFI), yarn evenness analysis, nep count analysis and waste assessment were discussed and compared in both kinds of mixing strategies i.e. mixing in the form of flocks in a blow room and in the form of slivers on a draw frame; as followed by the Mélange yarn Industry. The effect of increasing the number of passages on yarn quality was also analysed.

Celem artykułu było zbadanie zrównoważonego podejścia do recyklingu różnych odpadów włókiennych w produkcji przędzy melanżowej i zasugerowanie zrównoważonej strategii mieszania barwionych odpadów włókiennych do wykorzystania przez inżynierów w łańcuchu dostaw przędzy. Odpady z włókien dodano do suszarni lub ramy wyciągowej i porównano pod względem właściwości. Stwierdzono, że właściwości mechaniczne bawełnianej przędzy melanżowej wytwarzanej przez dodanie odpadów są odpowiednie do wprowadzenia do obrotu. Różne parametry jakościowe, takie jak długość przędzenia, wytrzymałość na rozciąganie, % wydłużenia, wskaźnik krótkich włókien (SFI), analiza równomierności przędzy, analiza liczby zgrubień i ocena odpadów zostały omówione i porównane w obu rodzajach strategii mieszania.

Influence of Ultraviolet Irradiation and Protease on Scale Structure of Alpaca Wool Fibers

Wang Hua, Farha Farial Islam, Memon Hafeezullah

Autex Research Journal

2020

Vol. 20, no. 4

476--483

The present research aimed to explore the influence of different felt-proofing methods on alpaca fibers’ scale structure. Dyed alpaca fibers were exposed to a particular wavelength of ultraviolet (UV) light for different periods and treated with protease to analyze the felt property and compare with untreated fibers. Experimental results have shown that alpaca fibers have better shrinkage resistance and dyeability after being exposed to UV light, whereas no recognizable change was obtained on the surface of alpaca fibers’ scale structure by scanning electron microscopy (SEM). In contrary, enzyme-treated alpaca fibers revealed improved dye rate and resistance to shrinkage. Especially, damaged scales on many areas of fiber surface were appeared by SEM, which indicates that UV may have a positive effect on enzyme treatment by damaging alpaca fibers’ surface structure and promoting the amount of protease going into the fibers’ inner layers. Therefore, eventually a better shrinkage resistance was obtained.