Cotton Fiber Structure and Physical Properties Altered by Environment

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

1941 ◽  
Vol 14 (1) ◽  
pp. 273-288
Author(s):  
R. F. Nickerson

Abstract The study by chemical methods of the constitution, derivatives, and properties of cellulose has yielded a voluminous literature and a wealth of useful information. Microscopic and x-ray investigations have produced much new and valuable knowledge of cellulose and its structure. But relatively little attention is given to the mechanical properties of cellulosic fibers, although such properties reflect fiber structure and frequently determine suitability to specific applications. An exhaustive review of the relevant literature on cotton has not been undertaken in this paper; rather, the object is to summarize the available data on constitution and properties and, wherever possible, to indicate their relations to the most probable fiber structure. In this way the material as a whole is integrated into a working concept of the cotton fiber.


2005 ◽  
Vol 61 (9) ◽  
pp. 235-240
Author(s):  
Masaki Uehara ◽  
Asuka Sakaue ◽  
Yoshihiko Onogi

Fibers ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 44
Author(s):  
Isiaka Oluwole Oladele ◽  
Oluwaseun Temilola Ayanleye ◽  
Adeolu Adesoji Adediran ◽  
Baraka Abiodun Makinde-Isola ◽  
Anuoluwapo Samuel Taiwo ◽  
...  

In this study, wear resistance and some selected physical properties of pawpaw–glass fiber hybrid reinforced epoxy composites were investigated. Two different layers of pawpaw stem—linear and network structures—were extracted and chemically modified. Hybrid reinforced composites were developed comparatively from the two fiber structures and glass fiber using hand lay-up in an open mold production process. The wear resistance was studied via the use of a Taber Abrasion Tester while selected physical properties were also investigated. The influence of the fiber structure on the properties examined revealed that network structured pawpaw fiber was the best as reinforcement compared to the linearly structured fiber. The addition of these vegetable fibers to epoxy resin brought about improved thermal conductivity and increased the curing rate while the wear resistance of the corresponding developed composites were enhanced by 3 wt% and 15 wt% of fibers from linear and network pawpaw fibers. It was noticed that linearly structured pawpaw fiber had its best result at 3 wt% while network structured pawpaw fiber had its best result at 15 wt%.


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.


1963 ◽  
Vol 33 (3) ◽  
pp. 205-217 ◽  
Author(s):  
Lawrence E. Holboke ◽  
Lester P. Berriman
Keyword(s):  

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