Physical Properties of Different Turkish Organic Cotton Fiber Types Depending on the Cultivation Area

Author(s):  
Sema Palamutcu ◽  
Ali Serkan Soydan ◽  
Ozan Avinc ◽  
Gizem Karakan Günaydin ◽  
Arzu Yavas ◽  
...  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Baneswar Sarker ◽  
Shankar Chakraborty

Purpose Like all other natural fibers, the physical properties of cotton also vary owing to changes in the related genetic and environmental factors, which ultimately affect both the mechanics involved in yarn spinning and the quality of the yarn produced. However, information is lacking about the degree of influence that those properties impart on the spinnability of cotton fiber and the strength of the final yarn. This paper aims to discuss this issue. Design/methodology/approach This paper proposes the application of discriminant analysis as a multivariate regression tool to develop the causal relationships between six cotton fiber properties, i.e. fiber strength (FS), fiber fineness (FF), upper half mean length (UHML), uniformity index (UI), reflectance degree and yellowness and spinning consistency index (SCI) and yarn strength (YS) along with the determination of the respective contributive roles of those fiber properties on the considered dependent variables. Findings Based on the developed discriminant function, it can be revealed that FS, UI, FF and reflectance degree are responsible for higher YS. On the other hand, with increasing values of UHML and fiber yellowness, YS would tend to decrease. Similarly, SCI would increase with higher values of FS, UHML, UI and reflectance degree, and its value would decrease with increasing FF and yellowness. Originality/value The discriminant functions can effectively envisage the contributive role of each of the considered cotton fiber properties on SCI and YS. The discriminant analysis can also be adopted as an efficient tool for investigating the effects of various physical properties of other natural fibers on the corresponding yarn characteristics.


Author(s):  
Gizem Karakan Günaydin ◽  
Ozan Avinc ◽  
Sema Palamutcu ◽  
Arzu Yavas ◽  
Ali Serkan Soydan

1976 ◽  
Vol 46 (11) ◽  
pp. 835-841 ◽  
Author(s):  
S. G. Stephens

A new method of estimating cotton fiber dimensions is developed, based on the geometrical properties of a loosely-coiled fiber. The theoretical principles are supported by experimental studies based on actual microscopic measurements of a wide range of cotton fiber types. The procedure involved cutting short segments ( ca. 2 mm) from the midregions of the fibers and mounting them in minimal amounts of a suitable clearing/mounting medium (3 parts 85% lactic acid: 1 part isopropyl alcohol). Fibers so prepared can be measured more accurately then dry fibers, although the mounting medium induces a slight swelling of the fiber walls.


2012 ◽  
Vol 627 ◽  
pp. 96-99
Author(s):  
Fan Rong Kong ◽  
Li Na Chen ◽  
Ming Xia Yang

This paper analyzes the performance of organic cotton fiber. Through the analysis of performance of ordinary cotton and organic cotton knitted fabrics, it was found that the mechanical properties of the organic cotton knits are somewhat less than ordinary cotton knits and there is no difference in wear ability between the two.


Author(s):  
Gizem Karakan Günaydin ◽  
Arzu Yavas ◽  
Ozan Avinc ◽  
Ali Serkan Soydan ◽  
Sema Palamutcu ◽  
...  

1930 ◽  
Vol 3 (4) ◽  
pp. 531-543
Author(s):  
T. M. Knowland

Abstract RUBBER articles may be divided roughly into three classes: (1) pure gum, (2) hard rubber, and (3) various combinations of rubber and textile fibers. This latter class is the largest and possibly the most important of the group, and includes besides tires the bulk of mechanical goods, such as hose, belting and sheet goods of various kinds. Probably no combination of useful materials affords a wider range of possibilities than the various combinations of rubber and textile fibers. In rubber-textile combinations the cotton fiber is ordinarily used to impart tensile strength and to decrease the stretchiness of the product, while the attempt is made to retain at the same time as much resiliency as possible. Most of these combinations are of laminated construction, consisting of alternate layers of rubber compound and woven fabric, the physical properties being controlled by the construction of the fabric and the composition and cure of the rubber compound. Since cotton is usually more expensive on a volume basis than rubber, it is desirable to obtain the maximum tensile properties of the cotton fiber and to restrict its use as much as possible. That this is a difficult matter may be recalled when we compare the actual bursting strength of various mechanical goods with the so-called theoretical or calculated strength based on the additive strengths of the plied up fabrics in the fabricated article; it is at once apparent that only a small proportion of the fiber strength is effectively employed.


2014 ◽  
Vol 2 (34) ◽  
pp. 5620-5626 ◽  
Author(s):  
Nicola Coppedè ◽  
Giuseppe Tarabella ◽  
Marco Villani ◽  
Davide Calestani ◽  
Salvatore Iannotta ◽  
...  

Selective detection of bioanalytes in physiological fluids, such as blood, sweat or saliva, by means of low-cost and non-invasive devices, is of crucial importance to improve diagnosis and prevention in healthcare.


2016 ◽  
Vol 3 (2) ◽  
pp. 89
Author(s):  
Titiek Yulianti

<p>Sistem pertanian organik pada tanaman pangan mulai diminati masyarakat karena produknya lebih sehat dan pengelolaannya memperhatikan lingkungan, siklus biologi, dan keanekaragaman hayati setempat. Kecende-rungan ini merembet ke tanaman nonpangan, seperti kapas yang menggunakan pestisida dan pupuk sintetis sangat besar. Syarat pengembangan kapas organik cukup ketat karena selain larangan menggunakan bahan kimia sintetis, juga pendokumentasian untuk memperoleh sertifikat organik. Meskipun serat kapas organik harganya lebih tinggi, namun produktivitasnya cenderung rendah. Keuntungan yang paling signifikan dalam pengembangan kapas organik adalah perbaikan lingkungan, mulai dari kesuburan lahan, aktivitas mikroba, dan siklus biologi sampai peningkatan keanekaragaman hayati. Pengembangan kapas di Indonesia masih menghadapi masalah rendahnya produktivitas dan pemenuhan kebutuhan dalam negeri sehingga pengem-bangan kapas organik belum menjadi prioritas meskipun kelestarian biologi dan lingkungan harus tetap di-perhatikan. Oleh karena itu, sistem pertanian input rendah yang berkelanjutan dan ramah lingkungan meru-pakan pilihan yang dapat dikembangkan untuk kapas.</p><p> </p><p>People are now paying more interest on healthy products from organic agriculture especially for food crops. Organic agriculture system based on ecological concern which enhances biodiversity, biological cycles of the land. This interest is now moving to nonfood crops, such as cotton that need high concentration of pesticide and fertilizer for its production. Developing organic cotton requires strictly standard and condition, such as no synthetic chemical fertilizers and pesticides, or detail documents to get organic sertificate. Although, price of organic cotton fiber is higher, but its production is lower compared to conventional one. However, there are still significant advantages in developing organic cotton, i.e. environmental improvements: from soil ferti-lities, microbial activities, biological cycles to promoting biodiversity. At the moment, the need of cotton fiber is mainly from import, on the other side organic cotton productivity tends to low. Hence, development of or-ganic cotton is not priority, yet biological and environmental sustainability ask for attention. Another alterna-tive choice which more practicable to develop cotton in Indonesia is a sustainable and ecofriendly with low input agricultural system.</p>


1966 ◽  
Vol 36 (5) ◽  
pp. 432-440 ◽  
Author(s):  
James N. Grant ◽  
Rollin S. Orr ◽  
Robert D. Powell

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