scholarly journals The Effect of Number and Position of Tuck Stitches within the Pattern Repeat on Air Permeability of Weft-knitted Fabrics from Glass Yarn

2019 ◽  
Vol 2 (3) ◽  
pp. 317-323
Author(s):  
Mehmet Erdem İnce
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Physical And Mechanical Properties ◽  
Air Permeability ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Synthetic Fibers ◽  
Fabric Structure ◽  
Knit Fabrics ◽  
Weft Knitted Fabric

The fact that weft knitted fabrics has a stretchable, 3D, porous and interlocking structure makes them unique when manufactured from high performance fibers. Knitted fabrics with different architectures exhibit different properties. Different loop forms like tuck and skip stitches with various loop lengths reveal different physical and mechanical properties. Literature review indicated that wisely arrangement of tuck stitches within the pattern repeat alter the weft-knitted fabric structure from natural and synthetic fibers. Therefore, we studied the effect of number and location of tuck stiches on air permeability of weft-knitted fabrics from glass yarn. Single-bed, flat weft knitting machine was used to knit fabrics with different architectures from three-ply glass yarn. The nominal single-end count of used E-glass yarn was 136 tex. It is anticipated that the number and location of tuck stitches within knit pattern effect physical and air permeability properties of weft-knitted fabrics from glass yarn.

scholarly journals Effect of Lycra Percentages and Loop Length on the Physical and Mechanical Properties of Single Jersey Knitted Fabrics

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Eman Eltahan
Keyword(s):  
Mechanical Properties ◽  
Permanent Deformation ◽  
Physical And Mechanical Properties ◽  
Knitted Fabric ◽  
Loop Length ◽  
Knitted Fabrics ◽  
Fabric Hand ◽  
Knit Fabrics ◽  
The Individual ◽  
Single Jersey

Single jersey knitted fabrics are generally used to make underwear and outerwear such as T-shirts. Knit fabric can more easily deform or stretch by compressing or elongating the individual stitches that form the fabric. Cotton yarns, which are not elastomeric, do not have the ability of recovery to rearrange the stitches. As a consequence, single-knit fabrics may have permanent deformation. To improve the recovery performance of circular single-knit fabrics, it is now a common practice to knit a small amount of spandex fiber or yarn with companion cotton yarn. In this study the physical, dimensional, and mechanical properties of back plaited cotton/spandex single jersey knitted fabrics were investigated and the results are compared with knitted fabrics made from 100% cotton and the effect of spandex percentage was also studied. It was found that as the loop length increases, the wales density was not affected and specific fabric hand and extension increased, but bursting strength and fabric recovery decreased. The presence of Lycra in single jersey knitted fabric increases of course density, fabric thickness, and knitted fabric recovery, while fabric width, fabric porosity, and extension were decreased.

Study on Wearing Characteristics of Sorona/Cotton Blended Seamless Knitted Fabric

2014 ◽  
Vol 633-634 ◽  
pp. 460-463
Author(s):  
Zi Min Jin ◽  
Xin Li ◽  
Yu Xiu Yan ◽  
Jian Wei Tao
Keyword(s):  
Air Permeability ◽  
Fiber Content ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Breaking Elongation ◽  
Fabric Structure

This document mainly studied the effect of Sorona fiber content and fabric structure on the wearingcharacteristicsofSoronacottonblendedseamlessknittedfabric. In the experiment, three different kinds of stitch structures and ratios of Sorona/cotton were designed and nine Sorona/cotton blended seamless knitted fabrics were knitted. And then, breaking elongation, rigid flexible, crease recovery, pilling resistance, hygroscopicity and air permeability of the nine seamless knitted fabrics were tested and analyzed. The result showed that with the increasing of Sorona fiber content, the properties of Breaking elongation, rigid flexible, crease recovery and pilling resistance of the Sorona/cotton blended seamless knitted fabrics had and a certain of improvement, however the hygroscopicity and air permeability decreased.

Manufacturing Technique and Property Evaluation of Cotton/Polyester/ Rubber Composite Warp Knit

2012 ◽  
Vol 627 ◽  
pp. 302-306
Author(s):  
Jia Horng Lin ◽  
Shih Yu Huang ◽  
Hui Yu Yang ◽  
Ching Wen Lin ◽  
Jin Mao Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Natural Fibers ◽  
Air Permeability ◽  
Cotton Yarn ◽  
Knitted Fabrics ◽  
Synthetic Fibers ◽  
Property Evaluation ◽  
Rubber Composite ◽  
Tearing Strength

Cotton fiber is a type of natural fibers. Using natural fibers to fabricate textile can not only decrease the consumption of synthetic fibers, but also reduce the environmental pollution. This study aims to fabricate elastic knitted fabrics and evaluate their properties. Polyester (PET) filaments and rubber threads serve as the warp while cotton yarn serves as the weft for warp knitting. A crochet machine makes the warp and weft into warp knits with desirable stretchability, during which the amount (single/double) and the ply number (1-, 2-, and 3-ply) of the weft are further varied. The resulting warp knits are evaluated for water absorption, air permeability, and mechanical properties. As demonstrated by the experimental results, the warp knits with single 1-ply weft (S1) yield an optimal air permeability of 224.6 cm3/cm2/s and stiffness along the warp direction of 4.74cm. The warp knits with single 2-ply weft (S2) display an optimal tearing strength of 86N while the warp knits with double 3-ply weft (D3/3) has an optimal tensile strength of 708N.

scholarly journals The Effect of Softeners Applications on Moisture Management Properties of Polyester/Cotton Blended Sandwich Weft-Knitted Fabric Structure

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 575
Author(s):  
Amna Siddique ◽  
Tufail Hassan ◽  
Sharjeel Abid ◽  
Munir Ashraf ◽  
Azmat Hussain ◽  
...  
Keyword(s):  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Drying Time ◽  
Moisture Management ◽  
Fabric Structure ◽  
Management Capability ◽  
Weft Knitted Fabric ◽  
Performance Results ◽  
Fabric Comfort ◽  
Concentration Levels

Prolonged drying times of terry fabrics is a problem as they can not be re-used until completely dry. To resolve this issue, we have designed a sandwich polyester in the mid-layer with low moisture content that could reduce the drying time with excellent wicking properties. These fabrics are widely used as activewear and sportswear. The effect of different softeners on the moisture management properties of weft-knitted terry fabrics’ for various applications has also been studied. Terry knitted fabrics were prepared using a circular knitting machine. Six different softeners were applied with three different concentrations, i.e., 10 g/L, 15 g/L, and 20 g/L, on the fabric using the pad-dry-cure method. Moisture management tests and rubbing fastness tests were performed to analyze the applied softener’s effect on the fabric comfort and moisture management performance. Results revealed that softener type (i.e., cationic, anionic, and non-ionic) and concentration levels considerably affect the moisture management capability of terry knitted fabrics.

scholarly journals Study of the effect of the introduction of the back yarn on two-layer knitted fabric’s physical and mechanical properties

2021 ◽  
Vol 304 ◽  
pp. 03034
Author(s):  
Sadoqat Rahmatova ◽  
Nozimjon Jurabayev ◽  
Qurbonali Holikov
Keyword(s):  
Mechanical Properties ◽  
Raw Materials ◽  
Research Work ◽  
Physical And Mechanical Properties ◽  
Knitted Fabric ◽  
Knitted Fabrics

In this research work, the physical and mechanical properties of 3 variants of jacquard knitted fabric obtained in order to increase the heat retention properties and increase the range of knitted fabrics by adding back yarn to the base of glad, rubber cuts in 20 grade double-needle jacquard knitting machine using local raw materials effectively The technological indicators were obtained experimentally and tabulated and recommendations for production sectors are given.

scholarly journals Study of the fabric structure influence on the physical-mechanical and technological properties of knitted products

2021 ◽  
Vol 304 ◽  
pp. 03030
Author(s):  
Nozimjon Jurabayev ◽  
Shakhboz Shogofurov ◽  
Kurbonali Kholikov ◽  
Umarjon Meliboev
Keyword(s):  
Physical And Mechanical Properties ◽  
Knitted Fabric ◽  
Testing Laboratory ◽  
Retention Capacity ◽  
Knitted Fabrics ◽  
Engineering Technology ◽  
Technological Characteristics ◽  
Fabric Structure ◽  
Shape Retention ◽  
Rubber Fabric

Three kinds of knitted fabrics with high shape retention capacity equipment LONG-XING SM 252 (China) 12-grade flat needle loom were produced, their technological characteristics were compared, and graphical records were supplied in this article based on experimental samples of knitted rubber fabric. The developed variants of knitted fabric differ from each other in pattern type, report, shape retention feature and a number of other indicators. Physical and mechanical properties of the obtained samples were determined experimentally on modern equipment installed in the testing laboratory of the Namangan Institute of Engineering Technology.

scholarly journals Investigation of the Influence of Stretch on the Air Permeability of Knitted Fabric: Effect of Loop Length

2021 ◽  
Vol 29 (1(145)) ◽  
pp. 53-56
Author(s):  
V. Kumar ◽  
C. Prakash ◽  
G. Manigandan ◽  
V.R. Sampath
Keyword(s):  
Air Permeability ◽  
Knitted Fabric ◽  
Loop Length ◽  
Knitted Fabrics ◽  
Fabric Structure ◽  
Medical Textiles ◽  
Single Jersey

Most of the time, a certain degree of stretch prominently and incrementally occurs in intimate wear, leisure wear, sportswear, medical textiles etc., during their action. Variations in the stretch gradient would definitely cause changes in the air permeability of knitted fabrics. The influence of variables such as loop length, the presence of an elastomeric component and fabric structure on the air permeability of cotton single jersey and pique knitted fabrics in a stretched state was critically analysed. In this work, changes in the air permeability of cotton jersey samples with and without elastomer were investigated and reported by keeping the samples in static up to an incremental stretch of 40% at a rate of 10% of the stretch gradient, in a dry relaxed state, wet relaxed state and fully relaxed state.

The Research of Multi-Layer Biaxial Weft Knitted Fabric Reinforced Composite Materials

2011 ◽  
Vol 332-334 ◽  
pp. 1910-1913 ◽  
Author(s):  
Fang Wen Liu ◽  
Yun Xing Liang ◽  
Hua Wu Liu
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Manufacturing Method ◽  
Plain Weave ◽  
Reinforced Composite ◽  
Weft Knitted Fabric

Multi-layered biaxial weft knitted fabrics has excellent mechanical properties and formability. The performances of multi-layered biaxial weft knitted fabrics were compared with multi-axial warp knitted fabrics and plain weave fabrics to highlight the advantages of this novel fibrous assembly. The manufacturing method and applications of the developed novel fabrics were illustrated in details.

scholarly journals Review on the 3-D simulation for weft knitted fabric

2021 ◽  
Vol 16 ◽  
pp. 155892502110125
Author(s):  
Sha Sha ◽  
Anqi Geng ◽  
Yuqin Gao ◽  
Bin Li ◽  
Xuewei Jiang ◽  
...  
Keyword(s):  
Physical Models ◽  
Spring Model ◽  
Finite Element Analyses ◽  
Knitted Fabrics ◽  
Piecewise Function ◽  
Fabric Structure ◽  
Weft Knitted Fabric ◽  
Mass Spring Model ◽  
Virtual Display ◽  
Mass Spring

There are different kinds of geometrical models and physical models used to simulate weft knitted fabrics nowadays, such as loop models based on Pierce, piecewise function, spline curve, mass-spring model, and finite element analyses (FEA). Weft knitting simulation technology, including modeling and yarn reality, has been widely adopted in fabric structure designing for the manufacturer. The technology has great potentials in both industries and dynamic virtual display. The present article is aimed to review the current development of 3-D simulation technique for weft knitted fabrics.

scholarly journals Composites from Thermoplastic Natural Rubber Reinforced Rubberwood Sawdust: Effects of Sawdust Size and Content on Thermal, Physical, and Mechanical Properties

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Chatree Homkhiew ◽  
Surasit Rawangwong ◽  
Worapong Boonchouytan ◽  
Wiriya Thongruang ◽  
Thanate Ratanawilai
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Natural Rubber ◽  
High Density Polyethylene ◽  
High Performance ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Shore Hardness ◽  
Thermoplastic Natural Rubber ◽  
Plastic Content

The aim of this work is to investigate the effects of rubberwood sawdust (RWS) size and content as well as the ratio of natural rubber (NR)/high-density polyethylene (HDPE) blend on properties of RWS reinforced thermoplastic natural rubber (TPNR) composites. The addition of RWS about 30–50 wt% improved the modulus of the rupture and tensile strength of TPNR composites blending with NR/HDPE ratios of 60/40 and 50/50. TPNR composites reinforced with RWS 80 mesh yielded better tensile strength and modulus of rupture than the composites with RWS 40 mesh. The TPNR/RWS composites with larger HDPE content gave higher tensile, flexural, and Shore hardness properties and thermal stability as well as lower water absorption. The TPNR/RWS composites with larger plastic content were therefore suggested for applications requiring high performance of thermal, physical, and mechanical properties.

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