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Mechanical properties of ultrasonic washed organic and traditional cotton yarns

Uzun M., Patel I.

Journal of Achievements in Materials and Manufacturing Engineering

2010

Vol. 43, nr 2

608--612

Purpose: The demand of natural and eco-friendly products have undergone tremendous growth after the awareness and realization of global ecological concerns. In this study we have used a novel product (organic cotton) and a novel system (ultrasonic), both having critical importance to environmental pollution. Cotton is one of the oldest and most abundant natural, biodegradable and renewable fibres. Although numerous synthetic fibres have been produced, cotton is still the most important fibre because of its unique physical properties like durability, strength and absorbency, furthermore, only 10% of the raw weight is lost during processing. Organic farming does not have any negative impact due to its natural growing abilities, in which the seeds genetic are not modified and no chemicals such as disinfect or fertilizer are used. Ultrasonic washing has many advantages such as the extra cleanliness of textile materials, reducing process time, energy and chemicals which are used in the washing process. In addition ultrasonic agitation brings less fibre migrations than conventional washing. Design/methodology/approach: The experimental section reports on the characterization of the organic and conventional cotton that were washed by using an ultrasonic process. Both of the cotton types that used in this study were Turkish cottons and manufactured by ring spinning system. The yarn samples were applied with two different washing temperatures (30°C and 40°C) and three different washing times (10, 20 and 30 minutes). The following stage of ultrasonic and conventional washing physical properties (yarn count, twist, tensile strength, elongation etc) was investigated and comparisons were made. Findings: The investigation presented in this study indicates benefits of employing ultrasonic washing and organic cotton farming. Research limitations/implications: The properties of yarn washed with ultrasonic energy shows better properties than those of yarns washed with conventional washing technique. The results confirms that ultrasonic washing has some advantages such as less processing time, less chemical and water consumptions compared to conventional washing methods. Originality/value: Organic cotton has a potential to substitute traditional cotton providing crop harvesting cost is significantly reduced.

Examination of Physical - Mechanical Parameters of Carded and Combed Yarns Produced from Biological Cotton

Rutkowski J.

Fibres & Textiles in Eastern Europe

2008

Vol. 16, no. 2 (67)

12--17

Terms of ‘biological and ‘organic ‘ cotton are described. The publication presents the parameters of fibres and yarns dedicated to knitting, which are manufactured from biological cotton, in relation to conventional fibres and yarns analogically manufactured. The advantages of products made from biological cotton are emphasised, and a recommendation is proposed for baby-care and medical textile products.

W pracy podano pojęcia bawełny biologicznej i bawełny ekologicznej. Określono parametry fizykomechaniczne włókien i przędz dziewiarskich zgrzeblonych i czesanych, wykonanych z bawełny biologicznej. Właściwości włókien i przędz porównano do ich odpowiedników z bawełny konwencjonalnej. Wskazano na zaletę, jaką jest chemiczna czystość tego surowca, a co za tym idzie możliwość wykorzystania go na wyroby przeznaczone na bieliznę niemowlęcą i wyroby medyczne.