12—the Dimensional Properties of Plain-Knitted Cotton Fabrics Made From Open-End-Spun Yarn

Burnip, M. S.; Saha, Manjushree

doi:10.1080/00405007308630426

Cited by 14 publications

(8 citation statements)

References 8 publications

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“…Burnip and Saha [2] are among the first workers who made a comparative study of the dimensional properties of a series of plain weft-knitted fabrics knitted from open-end and ring spun yarns. Lord et al [3] …”

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Performance of Open-End and Ring Spun Yarns in Weft Knitted Fabrics

Candan

Nergis

Iridag

2000

Textile Research Journal

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In this paper, the dimensional and some physical properties of a series of plain jersey and lacoste fabrics made from both cotton ring and open-end spun yams are investigated. The results show that structural differences in the yarn play a large part in determining the dimensions and behavior of these two fabric types. It is apparent that the amount of relaxation shrinkage occurring with open-end spun yam is greater than that with ring spun yarn. Furthermore, open-end spun yams tend to be weaker, which results in lower bursting strength, and the fabrics knitted from such yams tend to pill more. Finally, so far as abrasion resistance is concerned, ring spun knits perform slightly better than open-end spun knits.The technical and economic advantages of open-end spinning mean that more staple fibers are being converted into yarns by this method. Open-end yarns are more even, more extensible, bulkier, and weaker than corresponding ring spun yarns. Moreover, rotor spinning of yarns for knitted fabrics has several advantages, such as large package size with few knots or thick places, low linting, uniform strength and evenness, low hairiness, and smooth fabric appearance. Despite obviously attractive yarn properties, fabrics knitted from open-end spun yarns have a somewhat harsh handle and often do not exhibit good stitch clarity. Burnip and Saha [2] are among the first workers who made a comparative study of the dimensional properties of a series of plain weft-knitted fabrics knitted from open-end and ring spun yarns. Lord et al. [3] discussed the performance of open-end and ring yarns in single jersey fabrics from the standpoint of various twist levels. McKinney and Broome [41 investigated the effect of laundering on the general performance of jersey fabrics composed of open-end and ring spun yarns in relation to two different yarn sizes and fiber contents. Sharma et al. [51 studied the dimensional and mechanical properties of plain knitted fabrics from open-end and ring spun acrylic-viscose blended yarns. Alston [ I ] focussed on the effect of ring, rotor, and air-jet spinning on the pill resistance of jersey and interlock fabrics. Yagci [61 dealt with various dimensional and physical properties of plain and single pique (lacoste type) fabrics knitted from openend yarns of different sizes. In an effort to supply additional information about the performance of open-end and ring yarns in both plain knitted and lacoste fabrics, we have undertaken this study. ExperimentalThe plain jersey and lacoste fabrics were made from 30/1 ring and rotor spun cotton yarns, each produced from the same fiber blend, on a 28-cut Monarch circular knitting machine equipped with positive-feed systems (see Table I). Both open-end and ring spun yarns were produced from the same fiber blend. The characteristics of the yarns are presented in Table II. The reason for producing the plain jersey fabrics together with the lacoste fabrics (see Figure 1 ) was to see the performance of different yarn structures in various knits. A comparative study of...

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Performance of Open-End and Ring Spun Yarns in Weft Knitted Fabrics

Candan

Nergis

Iridag

2000

Textile Research Journal

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“…Bumip and Saha [2] have concluded that relaxation shrinkage in knits from OE spun cotton yams is greater than that of knits from ring-spun yarns. Black's results [ 1 show significant improvements in knitting performance of OE spun cotton yams compared to ring-spun yams.…”

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Feasibility of Single Jersey Fabric from Open-End Spun Blended Yarn

Sharma¹,

Mukhopadhyay²,

Agarwal³

1986

Textile Research Journal

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The dimensional and mechanical properties of plain knitted fabrics from open-end and ring spun acrylic-viscose blended yams are investigated. The fabric area shrinkage (%), thickness, and areal density of open-end spun yarns are greater but the bursting strength is less in comparison to ring-spun yarns. Knitted fabrics from ring spun yarns have a greater propensity to pill.The technical and economic advantages of openend spinning, especially of rotor spinning, mean that more staple fibers are being converted into yarns by this method. This paper discusses the use of open-end spun yams for weft knitted fabrics.Rotor spinning of yarns for knitted fabrics has several advantages such as large package size with few knots or slubs or thick places, low linting, uniform strength and evenness, low hairiness, smooth fabric appearance, as well as some disadvantages such as stiffness and a consequent harsh handle. Bumip and Saha [2] have concluded that relaxation shrinkage in knits from OE spun cotton yams is greater than that of knits from ring-spun yarns. Black's results [ 1 show significant improvements in knitting performance of OE spun cotton yams compared to ring-spun yams. He also points out that although the bursting strength of OE fabrics is lower, it would pass existing standards. Cygan [3] has shown that knitted fabrics from rotor yarns have better pilling grades. He also mentions that rotor yarns can definitely be seen as an enrichment of the acrylic field. ExperimentalThe yams in this study were all made from a blend of 1.25d, 38 mm acrylic fiber (Cashmilon) and 1.5d, 38 mm viscose fiber (Grassilene). The sliver up to the drawing stage was prepared on a Shirley miniature card and draw-frame; the delivered sliver tex was 4473.5.The specifications for the ring and open-end spun yams are shown in Table I. The Sinker body hosiery knitting machine used to make the knitted fabric samples had the following specifications: 8.89 crri diameter, one feeder, machine rpm of 35, machine gauge used for 10's and 14's count of 15.0 and for 18's count of 22.8, and a total of 110 needles for 10's and 14's count and 167 needles for 18's count. The plain knitted samples were produced TABLE I. ..for rinaaad c~od spun ~ar~. with three different stitch lengths: minimum, medium, and maximum. RELAXATION TREATMENT Samples 1.5 meters long were used in these experiments. Dry RelaxationAfter knitting, all the samples were laid, free from constraints, on a flat surface and allowed to condition for at least 72 hours in a standard atmosphere of 65 ± 2% RH at 27 ± 2°C (as given in the ASTM standand). After dry relaxation, 10 cm X 10 cm squares were marked on the samples with waterproof ink. The samples were then wet relaxed and full relaxed, after which measurements were taken.

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“…For complete relaxation, vigorous relaxation treatments such as repeated launderings may be required. Because of the intercepts, the best-fit lines through the origin were also calculated statistically as in the study of Burnip et al [3]. The details of the regression procedure can be found in the textbook by Leaf [25].…”

Section: Resultsmentioning

confidence: 99%

“…In order to establish the values of these dimensional parameters at equilibrium states, a series of experimental studies have been carried out by producing various plain knitted fabrics made from different kinds of yarns and relaxed in many different ways . The dimensional properties of cotton and wool plain knitted fabrics have been given considerable attention [3][4][5][6][7][8][9][10][11][12][13][14]. Due to the increasing use of fiber blends, the effect of blend type and composition on the dimensions of plain knitted fabrics has also been studied [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Dimensional and physical properties of plain knitted fabrics made from 50/50 bamboo/cotton blended yarns

Gun

Ünal

2008

Fibers Polym

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In this study, the dimensional and some physical properties of plain knitted fabrics made from 50/50 bamboo/cotton blended yarns are investigated. In order to see the differences and similarities, the results are then compared with those for similar fabrics knitted from 50/50 conventional viscose/cotton and 50/50 modal/cotton blended yarns. Each fabric type was produced with three different stitch lengths. After all fabrics were dyed under identical dyeing conditions, they were subjected to dry and full relaxation treatments. For dimensional properties of fabrics, course, wale and stitch densities were measured. Then, by calculating statistically best-fit lines passing both through the experimental points and the origin, dimensional constants i.e. k values were predicted in terms of the fiber types. The result show that each fabric type knitted from bamboo/ cotton, viscose/cotton and modal/cotton blended yarns behaves in a similar manner. However, in both dry and fully relaxed states, the modal/cotton knitted fabrics tend to have slightly higher k values than the bamboo/cotton and viscose/cotton knitted fabrics. For physical properties, fabric weight per unit area, thickness, bursting strength, air permeability and pilling were evaluated. The results show that the weight, thickness and air permeability values are independent of the fiber type. Plain knitted fabrics from modal/cotton blended yarns have the highest bursting strength values. Plain knitted fabrics from bamboo/ cotton blended yarns tend to pill less.

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12—the Dimensional Properties of Plain-Knitted Cotton Fabrics Made From Open-End-Spun Yarn

Cited by 14 publications

References 8 publications

Performance of Open-End and Ring Spun Yarns in Weft Knitted Fabrics

Performance of Open-End and Ring Spun Yarns in Weft Knitted Fabrics

Feasibility of Single Jersey Fabric from Open-End Spun Blended Yarn

Dimensional and physical properties of plain knitted fabrics made from 50/50 bamboo/cotton blended yarns

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