Quality and quality control

Lord, Peter

doi:10.1533/9781855738652.276

Cited by 5 publications

(4 citation statements)

References 1 publication

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“…e worst yarns vary from 8.5% CV to 15% CV for corresponding counts (≈5 tex), and worsted yarns have high CVs of tenacity. It should be noted that the CVs of tenacity measured at higher testing speeds tend to be a little higher than those quoted [2].…”

Section: Yarn Strength Propertiesmentioning

confidence: 55%

“…e quality of yarn is determined by the constituent fibre properties that can be used to forecast partially the physical properties of yarn and the success of spinning [2]. 80% of Ethiopian cotton yarn is sold primarily to the local or domestic market, and 20% of the yarn is to export markets [3].…”

Section: Introductionmentioning

confidence: 99%

“…e USTER corporation periodically issues a very comprehensive statistical analysis of worldwide data under the title USTER statistics [2]. e UUSTER statistics are the only global benchmarking tool based on the global collection and testing of fibre, sliver, roving, and yarn samples that have been produced in every part of the world.…”

Section: Introductionmentioning

confidence: 99%

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Quality Evaluation of Ethiopian 100% Cotton Carded Ring Spun Yarn with Respect to USTER Standards

Adamu

Atalie

Liyew

2021

Journal of Engineering

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Yarn quality influences both fabric production processes efficiency and export market. One method used to gauge competitiveness of an industry is to study its product quality. The aim of this research work is to evaluate the quality of Ethiopian textile spinning mills’ 100% cotton carded ring spun yarns in terms of its evenness (coefficient of mass variation, CVm), imperfections (thick and thin places, neps), and tensile properties with USTER Statistics 2018. Five spinning mills (B3, A0, A2, A4, and K3) of 15N, 20Ne, 25Ne, 30Ne, 35Ne, and 40Ne nominal yarn counts have been selected for the study. The yarn evenness and imperfections were measured using USTER tester 5 and tensile using a STATIMAT tester. The USTER statistical results showed 20.3Ne (mill B3), 32Ne (mill A4), and 36.2Ne (mill A2) had better overall quality, respectively. It was observed that most selected spinning mills had low evenness, imperfections, yarn strength, and good yarn elongation. Tensile properties of A2 (32.85Ne and 36.2Ne) had fallen under 5% USTER statistics percentile which indicates excellent yarn strength. Generally, from studied mills, it was seen that 61.5% of cotton yarn CVm and thin places falls at above 95% and 15% of yarn tenacity falls at ≤5% of Uster statistical percentile.

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Section: Yarn Strength Propertiesmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

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Quality Evaluation of Ethiopian 100% Cotton Carded Ring Spun Yarn with Respect to USTER Standards

Adamu

Atalie

Liyew

2021

Journal of Engineering

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“…Le fil est le terme général désignant, quelle que soit sa structure simple ou complexe, un assemblage de grande longueur de fibres textiles : filaments ou fibres discontinues, utilisable directement pour des fabrications textiles [2]. Techniquement et commercialement, la qualité du fil est usuellement déterminée par les propriétés des fibres constitutives qui peuvent être utilisées pour prévoir partiellement les propriétés du fil et le succès de la filature [3].…”

Section: Introductionunclassified

Etude Comparative Des Produits Issus De La Transformation En Filature Des Fibres De Trois Nouvelles Variétés De Cotonnier

TOGOLA¹,

DOUMBIA²,

BABA³

et al. 2022

IJPSAT

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Résumé - Au Mali, comme ailleurs en Afrique, la sélection variétale est à la base du succès de la culture cotonnière. Le coton du Mali est presqu’entièrement exporté ; les fibres issues des variétés cultivées doivent répondre aux exigences du marché en termes de caractéristiques technologiques des fibres, facteurs clés du fonctionnement de la filature. Cette étude comparative a été réalisée sur trois nouvelles variétés de cotonniers A, B et C, issues d’un point d'expérimentation. L'objectif de l'étude est d’identifier les variétés ayant les meilleures performances variétales et industrielles pour la vulgarisation en production commerciale par les sociétés cotonnières. 1 échantillon représentatif de 100g de coton fibre, 20 échantillons de 5 m de rubans de carde, d’étirage et de 10 m de mèches, 30 échantillons de 100 m de fil et 40 échantillons de 500 mm de fil ont été respectivement prélevés par balle de chaque variété et à différentes étapes du processus de transformation par variété. Ces échantillons ont été testés sur des appareils de mesure dans les conditions requises au laboratoire de métrologie textile du CERFITEX, Ségou - Mali.L’analyse de variance (ANOVA) des données relatives aux fibres, rubans, mèches et fils et la comparaison de leurs principales caractéristiques de qualité à celle de la production mondiale avec l’application des USTER STATISTICS 2018 ont montré que les variétés de cotonnier A et B sont nettement meilleures que celle de C. Les performances variétales et industrielles de A et B, meilleures que celles de C sont recommandées à la vulgarisation Mots clés : Coton, caractéristiques technologiques, qualité, fibres, fils. [Comparative Study Of The Products Resulting From The Transformation Into Spinning Of The Fibers Of Three New Varieties Of Cotton]Abstract - In Mali, as elsewhere in Africa, varietal selection is the basis of the success of cotton growing. Cotton from Mali is almost entirely exported; fibers from cultivated varieties must meet market requirements in terms of the technological characteristics of fibers, key factors in the operation of the spinning mill. This comparative study was carried out on three new varieties of cotton A, B and C, from an experimental point. The objective of the study is to identify the varieties with the best varietal and industrial performance for popularization in commercial production by cotton companies. 1 representative sample of 100g of cotton fiber, 20 samples of 5m of carding and drawing slivers and 10m of rovings, 30 samples of 100m of yarn and 40 samples of 500mm of yarn were respectively taken per bale of each variety and at different stages of the transformation process by variety. These samples were tested on measuring devices under the required conditions at the CERFITEX textile metrology laboratory, Ségou - Mali.The analysis of variance (ANOVA) of fiber, sliver, roving and yarn data and the comparison of their main quality characteristics to that of world production with the application of USTER STATISTICS 2018 showed that cotton varieties A and B are clearly better than those of C. The varietal and industrial performances of A and B, better than that of C are recommended for popularisation Keywords : Cotton, technological characteristics, quality, fibres, yarns.

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Synthesis and characterization of potato starch as a feasible alternative to the commercial yarn sizing materials

Fahmi,

Syduzzaman

2024

Cleaner Engineering and Technology

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Quality and quality control

Cited by 5 publications

References 1 publication

Quality Evaluation of Ethiopian 100% Cotton Carded Ring Spun Yarn with Respect to USTER Standards

Quality Evaluation of Ethiopian 100% Cotton Carded Ring Spun Yarn with Respect to USTER Standards

Etude Comparative Des Produits Issus De La Transformation En Filature Des Fibres De Trois Nouvelles Variétés De Cotonnier

Synthesis and characterization of potato starch as a feasible alternative to the commercial yarn sizing materials

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