Discriminant analysis-based modeling of cotton fiber and yarn properties

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Baneswar Sarker ◽  
Shankar Chakraborty
Keyword(s):  
Discriminant Analysis ◽  
Physical Properties ◽  
Cotton Fiber ◽  
Fiber Strength ◽  
Natural Fibers ◽  
Content Type ◽  
Fiber Properties ◽  
Yarn Properties ◽  
Fiber Fineness ◽  
Genetic And Environmental Factors

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.

Influence of Cotton Fiber Strength and Fineness on Fiber Damage during Lint Cleaning

1988 ◽  
Vol 58 (8) ◽  
pp. 433-438 ◽  
Author(s):  
J. K. Dever ◽  
J. R. Gannaway ◽  
R. V. Baker
Keyword(s):  
Significant Relationship ◽  
Cotton Fiber ◽  
Fiber Length ◽  
Fiber Strength ◽  
Fiber Breakage ◽  
Fiber Damage ◽  
Fiber Properties ◽  
Fiber Fineness ◽  
Wide Range ◽  
Induced Changes

Seven sources of cotton representing a wide range of fiber properties were roller ginned, saw ginned, or saw ginned plus processed through tandem saw lint cleaners or through an aggressive carding-type cleaner (Cottonmaster1). Lint cleaner induced changes in fiber length and nep count were compared to fiber property measurements from roller ginned samples. Fiber length deterioration from saw ginning was negatively correlated with fiber strength. Fiber breakage in lint cleaning was positively correlated with fiber fineness. Resistance to fiber length damage in ginning was explained best by fiber strength and fineness, or an estimate of individual fiber strength. Initial and final nep level were related to fineness, nonlint content, and upper quartile length, but an increase in neps due to lint cleaning had no significant relationship to fiber properties.

scholarly journals PERBAIKAN VARIETAS UNTUK PENINGKATAN PRODUKTIVITAS DAN MUTU SERAT KAPAS

2020 ◽  
Vol 15 (2) ◽  
pp. 66
Author(s):  
EMY SULISTYOWATI ◽  
SIWI SUMARTINI ◽  
ABDURRAKHMAN ABDURRAKHMAN ◽  
SRI RUSTINI
Keyword(s):  
Gossypium Hirsutum ◽  
Fiber Strength ◽  
Yield Potential ◽  
Productivity Level ◽  
Fiber Properties ◽  
Fiber Fineness ◽  
Pedigree Selection ◽  
Line Selection ◽  
The Stability ◽  
Potential Test

<p>ABSTRAK</p><p>Persilangan kapas yang dilakukan pada tahun 1999 denganmelibatkan 11 varietas kapas sebagai tetua betina dan lima varietas kapassebagai tetua jantan telah menghasilkan 22 set persilangan kapas. Adapuntujuan persilangan tersebut adalah untuk meningkatkan produktivitas danmutu serat varietas kapas nasional Indonesia. Program perbaikan varietasini menggunakan pendekatan seleksi pedigree pada F3, dan dilanjutkandengan seleksi galur pada generasi F5 dan selanjutnya. Pada kegiatanseleksi galur tahun 2004-2005 di Kebun Percobaan Asembagus, dari 22genotipe generasi F4 yang diseleksi dengan kriteria seleksi produktivitas &gt;3 ton kapas berbiji/ha telah dihasilkan 23 galur harapan. Pada generasi F6dilakukan uji daya hasil dari 23 galur tersebut. Dari pengujian daya hasilgalur-galur tersebut pada tahun 2006, telah dihasilkan enam galur harapanyang memiliki tingkat produktivitas secara statistika tidak berbeda denganatau lebih tinggi dari Kanesia 8 dengan panjang serat &gt; 1,16 inch, kekuatanserat &gt; 30,77 g/tex, dan kehalusan serat antara 3,5 – 4,5 mic, yaitu99004/5, 99005/9, 99013/5, 99023/5, 99023/7, dan 99023/8. Galur-galurtersebut selanjutnya akan diuji secara multilokasi untuk menilai stabilitasekspresi genetiknya di beberapa wilayah pengembangan kapas.</p><p>Kata kunci : Gossypium hirsutum, kapas, produktivitas, mutu serat</p><p>ABSTRACT</p><p>Varietal Improvement for Increase of Productivity andQuality of Cotton Fiber Cotton breeding conducted since 1999 involving 11 varieties asfemale parent, and five varieties as male parents has resulted in 22crossing sets. The aim was to improve productivity level as well as fiberquality of national cotton varieties of Indonesia. The breeding approachwas accomplished by pedigree selection on F3 generation, which was thencontinued with line selection from F5 generation. From the line selectionactivity carried out at Asembagus Experimental Station during 2004-2005,out of 22 genotypes selected at the F4 generation based on productivitylevel of &gt; 3 ton seed cotton/ha as selection criteria, 23 promising lines hadbeen selected which were then tested in a yield potential test. From theyield potential test conducted in 2006, six promising lines had beenselected whose productivity levels were statistically not different from orhigher than Kanesia 8 with fiber length of &gt;1.16 inch, fiber strength&gt;30.77 g/tex, and fiber fineness 3.5-4.5 mic. Those promising lines wouldthen be tested in multilocation trials to evaluate the stability of theirgenetic expression in several cotton development areas.</p><p>Key words : Gossypium hirsutum, cotton, productivity, fiber properties</p>

The Strength and Stretch of Double Texture Rubber Goods

1930 ◽  
Vol 3 (4) ◽  
pp. 531-543
Author(s):  
T. M. Knowland
Keyword(s):  
Tensile Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Cotton Fiber ◽  
Small Proportion ◽  
Fiber Strength ◽  
Woven Fabric ◽  
Rubber Compound ◽  
Textile Fibers ◽  
Strength Based

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.

Effect of Cotton Fiber Strength on Single Yarn Properties and on Processing Behavior

1954 ◽  
Vol 24 (6) ◽  
pp. 503-507 ◽  
Author(s):  
Louis A. Fiori ◽  
John J. Brown ◽  
Jack E. Sands
Keyword(s):  
Cotton Fiber ◽  
Fiber Strength ◽  
Yarn Properties ◽  
Single Yarn

scholarly journals POTENSI PRODUKSI DAN MUTU SERAT PADA GALUR-GALUR F1 HASIL PERSILANGAN INTERSPESIES KAPAS TETRAPLOID

2020 ◽  
Vol 16 (4) ◽  
pp. 150
Author(s):  
EMY SULISTYOWATI ◽  
SIWI SUMARTINI ◽  
ABDURRAKHMAN ABDURRAKHMAN
Keyword(s):  
Negative Correlation ◽  
Yield Components ◽  
Fiber Length ◽  
Fiber Strength ◽  
Tetraploid Cotton ◽  
Interspecific Hybridisation ◽  
Seed Cotton ◽  
Fiber Properties ◽  
Plot Size ◽  
Fiber Fineness

<p>ABSTRAK</p><p>Persilangan interspesies kapas tetraploid antara G. hirsutum danG. barbadense dilakukan untuk memperbaiki mutu serat G. hirsutum.Penelitian dilakukan dengan menguji 16 galur F1 hasil persilanganinterspesifik kapas tetraploid, 8 varietas tetua betina dari kelompokG. hirsutum (Kanesia 9, Kanesia 10, Kanesia 11, Kanesia 12, Kanesia 14,dan Kanesia 15), dan 2 varietas tetua jantan dari kelompok G. barbadense(Pima dan Giza 90). Penelitian disusun dalam rancangan acak kelompokyang diulang dua kali, dengan luas plot 50 m 2 dan jarak tanam 100 x 25cm 2 . Percobaan dilaksanakan di Asembagus dari bulan Januari sampaidengan Desember 2009. Pengamatan dilakukan terhadap komponenproduksi, produksi, dan mutu serat. Hasil penelitian menunjukkan bahwaproduktivitas galur-galur F1 hasil persilangan interspesies kapas tetraploidberkisar antara 1.495-2.602,50 kg kapas berbiji/ha dan kandungan seratantara 30,14 – 38,66%. Galur F1 yang tertinggi produktivitasnya adalah P08019 (Kanesia 10 x Pima), sedangkan galur yang tertinggi kandunganseratnya adalah P 08032 (Kanesia 13 x Pima). Heterosis produksi kapasberbiji atas rerata kedua tetua pada galur-galur F1 berserat panjang hasilpersilangan interspesies kapas tetraploid cukup luas kisarannya yaitu dari-20,60 sampai 35,47. Galur-galur F1 hasil persilangan interspesies kapastetraploid memiliki kehalusan, kekuatan dan panjang serat yang lebih baikdibandingkan tetua betinanya (G. hirsutum). Limabelas dari 16 galur F1memiliki kehalusan serat yang berada dalam kisaran 3,5 – 4,9 mic.Perbaikan genetik 15 galur F1 tersebut untuk kekuatan serat adalah 7,34 -72,88%, sedangkan untuk karakter panjang serat mencapai 8,94 – 34,58%.Terdapat korelasi negatif antara potensi produksi dan kekuatan serat, jugaantara kehalusan serat dengan kekuatan dan panjang serat.</p><p>Kata kunci : G. hirsutum, produksi, mutu serat, persilangan interspesies,tetraploid</p><p>ABSTRACT</p><p>Yield and Fiber Properties of F1 Lines Resulted fromInterspecific Hybridisation of Tetraploid Cotton</p><p>Interspecific hybridisation of tetraploid cotton between G. hirsutumand G. barbadense aiming to improve fiber properties of G. hirsutum wascarried out in Asembagus from January through December 2009.Experiment was testing 16 F1 interspecific cotton lines, eight G. hirsutumvarieties of female parents (Kanesia 9, Kanesia 10, Kanesia 11, Kanesia12, Kanesia 14, dan Kanesia 15), and two G. barbadense varieties of maleparents (Pima dan Giza 90). The experiment was arranged in randomizedblock design with two replicates; plot size was 50 m 2 and planting spacewas 100 x 25 cm 2 . Parameters observed were yield components, yield, andfiber properties. Experiment result showed that yield of F1 lines resultedfrom interspecific hybridisation of tetraploid cotton ranged 1,495 –2,602.50 kg seed cotton/ha with gin turnout of 30.4 – 38.66%. Line P08019 (Kanesia 10 x Pima) was the best yielding line, whereas lineP 08032 performed the highest gin turn. Heterosis of yield overmid parentsof each line ranged from -20.60 to 35.47. F1 lines resulted frominterspecific hybridisation of tetraploid cotton have better fiber fineness,strength, and length as compared to their female parents. Fifteen out of 16F1 line have fiber finess of 3.5 - 4.9 mic. The F1 lines showed geneticimprovement of fiber strength by 7.34 - 72.88% and of fiber length by 8.94- 34.58%. A negative correlation was observed between yield and fiberstrength, as well as between fiber fineness and fiber strength and length.</p><p>Key words : G.  hirsutum,  production,  fiber  value,  interspecifichibdridisation, tetraploid</p>

Study to relate mini-spun yarn tenacity with cotton fiber strength

2019 ◽  
Vol 89 (21-22) ◽  
pp. 4491-4501 ◽  
Author(s):  
Yongliang Liu ◽  
B Todd Campbell ◽  
Christopher Delhom
Keyword(s):  
Cotton Fiber ◽  
Fiber Strength ◽  
Pearson Correlation ◽  
High Volume ◽  
Short Fiber ◽  
Ratio Method ◽  
Linear Regression Models ◽  
Fiber Properties ◽  
Yarn Tenacity ◽  
Cotton Cultivar

There has been great interest in assessing yarn tenacity directly from available cotton fiber property data acquired by various means, including high-volume instrumentation (HVI). The HVI test is a primary and routine measurement providing fiber properties to cotton researchers. Knowledge about yarn tenacity within a cotton cultivar or between cultivars could be useful with regard to understanding the selection of cotton cultivars. This study examined the effect of cotton growth location, crop year, and cultivar on three relationships (fiber strength versus fiber micronaire, yarn tenacity versus fiber micronaire, and fiber strength versus yarn tenacity), and found great variations in the Pearson correlation and the gradients of respective regression lines. Instead of developing linear regression models from HVI fiber properties to predict yarn tenacity, this study applied a simple ratio method (i.e. normalized fiber strength or yarn tenacity against five HVI fiber properties) to relate fiber strength with yarn tenacity. The short fiber index was found to have a greater effect on the correlation between modified yarn tenacity and modified fiber strength than micronaire, yellowness, upper-half mean length, or uniformity index. This result implied the feasibility of utilizing HVI fiber short fiber index and strength data, as a semiquantitative and fast approach, to compare yarn tenacity performance within a cotton cultivar or between cultivars.

A DEMATEL-MABAC-based approach for grading and evaluation of jute fibers

2020 ◽  
Vol 24 (4) ◽  
pp. 341-355
Author(s):  
Subham Agarwal ◽  
Santonab Chakraborty ◽  
Shankar Chakraborty
Keyword(s):  
Decision Making ◽  
Physical Properties ◽  
Design Methodology ◽  
Natural Fibers ◽  
Frictional Resistance ◽  
Jute Fiber ◽  
High Tensile Strength ◽  
Content Type ◽  
Jute Fibers ◽  
Root Content

Purpose Due to several unique characteristics, such as high tensile strength, low extensibility, high frictional resistance, biodegradability, eco-friendliness and cheapness, Jute ranks second just after cotton with respect to its worldwide consumption and production. To overcome the difficulties of the existing Jute grading procedure, this paper aims to focus on the application of decision-making trial and evaluation laboratory (DEMATEL) and multi-attributive border approximation area comparison (MABAC) methods for evaluation of 10 Tossa Jute fiber lots based on strength, defects, root content, color, fineness and bulk density properties. Design/methodology/approach The DEMATEL method divides all the six physical properties of Jute fiber into cause and effect groups. The most influencing property is also identified. On the other hand, the considered Jute fiber lots are ranked using MABAC method along with the identification of the strengths and weaknesses of each of them. Findings This combined approach would provide a more scientific and realistic way of Jute grading and evaluation based on various properties of the considered Jute fiber lots. The positions of the superior and the inferior Jute lots perfectly match with those as identified by the earlier researchers. Originality/value It is concluded that the adopted combined decision-making tool can be effectively applied for grading and evaluation of other natural fibers with diverse heterogeneous physical properties.

Measurement comparison of cotton fiber micronaire and its components by portable near infrared spectroscopy instruments

2016 ◽  
Vol 87 (1) ◽  
pp. 57-69 ◽  
Author(s):  
James Rodgers ◽  
Jimmy Zumba ◽  
Chanel Fortier
Keyword(s):  
Cotton Fiber ◽  
Textile Industry ◽  
Near Infrared ◽  
Fiber Quality ◽  
Nir Spectroscopy ◽  
Fiber Properties ◽  
Fiber Fineness ◽  
Cotton Fiber Quality ◽  
Fiber Processing ◽  
Universal Nature

Micronaire is a key cotton fiber quality assessment property, and changes in fiber micronaire can impact fiber processing and dyeing consistency. Micronaire is a function of two fiber components—maturity and fineness. Historically, micronaire is measured in a laboratory under tightly controlled environmental conditions. There is increased interest by the cotton and textile industry to measure key fiber properties both in the laboratory and in-field (non-controlled conditions), using small portable near infrared (NIR) spectroscopy instruments. A program was implemented to determine the feasibility of using portable NIR instruments to monitor fiber micronaire, maturity, and fineness. Prior to outside the laboratory measurements (field, warehouse, etc.), laboratory feasibility was performed to assess the NIR instruments’ capabilities. Comparative evaluations for fiber micronaire, maturity, and fineness were performed on three portable NIR instruments. Instrumental, sampling, and operational procedures and protocols for each instrument were established. Although representing different measurement technologies, very good spectral agreement was observed between the portable NIR instruments and a bench-top NIR unit used as a comparison. Rapid (less than 3 minutes per sample), easy to use, and accurate measurements of fiber micronaire and maturity were achieved, with regressions ( R values) greater than 0.85, low residuals, and a low number of outliers observed for each NIR instrument. Improvements are required for the accurate measurement of fiber fineness by portable NIR instruments. Thus, for well-defined cotton fiber samples, the universal nature of the NIR measurement of cotton fiber micronaire and maturity by portable NIR instruments was validated.

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