Development of Fabric Knitted by Hemp/Cotton Yarn

2011 ◽  
Vol 332-334 ◽  
pp. 667-671
Author(s):  
Yun Liu ◽  
Rui Chao Xu ◽  
Yi Ping Zhang
Keyword(s):  
Moisture Absorption ◽  
Air Permeability ◽  
Cotton Yarn ◽  
Ecological Health ◽  
Hemp Fiber ◽  
Knitted Fabrics ◽  
Blended Yarn ◽  
Ultraviolet Ray ◽  
Finishing Processes ◽  
The Ideal

Hemp fiber has many excellent properties, but there are certain difficulties in spinning yarn because the fiber is hard and its cohesion is small. Cotton fiber is soft and its length, fineness is uniform therefore has excellent spin ability and can compensate for the shortage of hemp fiber. We developed the knitted fabrics that have moisture absorption and dry-fast properties using the hemp/cotton blended yarn and discussed weft knitting, dying as well as finishing processes. This shell fabric has special performance such as moisture absorption and air permeability, anti-mildew and antibacterial, anti-ultraviolet ray, antistatic, ecological health ect, which is the ideal sports and summer fabric.

Properties and performances of fabrics made from bio-based and degradable polylactide acid/poly (hydroxybutyrate- co-hydroxyvalerate) (PLA/PHBV) filament yarns

2016 ◽  
Vol 87 (20) ◽  
pp. 2464-2474 ◽  
Author(s):  
XX Huang ◽  
XM Tao ◽  
ZH Zhang ◽  
P Chen
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Polyamide 6 ◽  
Air Permeability ◽  
Filament Yarn ◽  
Thermal And Mechanical Properties ◽  
Knitted Fabrics ◽  
Polylactide Acid ◽  
Finishing Processes ◽  
Single Jersey

This paper reports a comparative experimental study of single jersey knitted fabrics made from a novel bio-based and degradable polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) multi-filament yarn, together with polylactide acid , Cupro, polyethylene terephthalate (PET) and polyamide 6 (PA 6) multi-filament yarns. Their structures, mechanical, thermal and surface properties and performances as well as anti-bacterial behavior are measured and compared. It has been found that the polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) filament yarn has adequate thermal and mechanical properties for normal textile and coloration/finishing processes. The Young's modulus of polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) multi-filament yarn is the lowest among all the candidates investigated except for polyamide 6 (PA 6). The dyed polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) fabric has the highest softness rating among all the fabrics. Single jersey knitted fabrics from the polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) filament yarn have a bursting strength, extension and recovery that satisfy the industrial requirement. In addition, after fully relaxation, the dyed polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) knitted fabrics exhibit an outstanding pilling resistance, favorable snagging property, as well as good air permeability, Qmax and smoother surface. Finally, this study has led to a discovery of excellent anti-bacterial performance of 100% polylactide acid/poly (hydroxybutyrate-co-hydroxyvalerate) (PLA/PHBV) fabrics against staphylococcus aureus, klebsiella pneumoniae, candida albicans according to AATCC100-2012.

scholarly journals Tensile Properties of Single Jersey and 1×1 Rib Knitted Fabrics Made from 100% Cotton and Cotton/Lycra Yarns

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Dereje Berihun Sitotaw ◽  
Biruk Fentahun Adamu
Keyword(s):  
Tensile Strength ◽  
Relative Humidity ◽  
Tensile Properties ◽  
Cotton Yarn ◽  
Breaking Force ◽  
Knitted Fabrics ◽  
Blended Yarn ◽  
Cotton Yarns ◽  
High Elongation ◽  
Single Jersey

The tensile properties such as tensile strength which is measured as breaking force in Newton (N) and elongation percent (%) at break of single jersey and 1×1 rib (knitted with full needles) knitted fabrics made from 100% cotton and cotton/Lycra yarns (5% Lycra yarn content in 95% combed cotton yarn) are investigated in this research. The sample fabrics are conditioned for 24 hours at20±1°C temperature and65±2% relative humidity before testing. Ten specimens (five for lengthwise and five for widthwise) have been taken from each of the two knitted structures, those made from 100% cotton and cotton/Lycra (at 95/5 percent ratio blend) yarns. According to the discussion and as found from the investigations, the tensile properties of single jersey and 1×1 rib knitted fabrics made from 100% cotton and cotton/Lycra yarns are significantly different from each other and both of the knitted fabrics have high elongation percent at break with cotton/Lycra blend yarns as compared to 100% cotton yarn. Knitted fabrics made from cotton/Lycra blended yarn have low breaking force and high elongation percent at break relative to knitted fabrics made from 100% cotton yarns.

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.

Comparison of the Properties of Akund/Cotton Blended Yarn Produced by Compact Spinning with Pure Cotton Yarn

2012 ◽  
Vol 217-219 ◽  
pp. 590-593
Author(s):  
Xiao Jiang ◽  
Qin Wang ◽  
Long Di Cheng ◽  
Jian Yong Yu
Keyword(s):  
Mechanical Properties ◽  
Moisture Absorption ◽  
Apparel Industry ◽  
Short Fiber ◽  
Cotton Yarn ◽  
Environment Friendly ◽  
Blended Yarn ◽  
Cotton Material ◽  
Yarn Structure ◽  
Compact Spinning

As a kind of environment-friendly fiber, akund will create considerable interest in the apparel industry due to its fine luster, good moisture absorption, renewable and pollution free feature. This research is a comparative study of the physical properties of akund/cotton material and pure cotton material. Results show that the enhanced structure of akund/cotton compact yarn typically results in a lower hairiness and improved mechanical properties. However, the weaving of this kind akund/cotton blended yarn may meet a lot difficulty since its tenacity value hardly meet the minimum value calls for weaving. Another important guidance is that it necessary to reduce short fiber content that may be present in the yarn structure to adopt best evenness.

Electrospun nanofiber/cotton composite yarn with enhanced moisture management ability

2021 ◽  
pp. 004051752098497
Author(s):  
Ning Mao ◽  
Xiaohong Qin ◽  
Liming Wang ◽  
Jianyong Yu
Keyword(s):  
Water Transport ◽  
Moisture Absorption ◽  
Water Evaporation ◽  
Electrospun Fibers ◽  
Electrospun Nanofiber ◽  
Knitted Fabrics ◽  
Moisture Management ◽  
Composite Yarn ◽  
Management Ability ◽  
Cotton Yarns

Wet comfort is a critical performance for fabrics, especially when human bodies release sweat in daily life. Despite excellent moisture absorption performance, cotton yarns are still limited in the moisture release/transfer ability. Here, based on a novel electrospinning technology, polyacrylonitrile and polystyrene (PS) electrospun nanofiber/cotton composite yarns were produced, respectively. Under fluorescence microscopic observation, electrospun fibers within the composite yarns showed a uniform distribution. As a result, these composite yarn-based knitted fabrics obtained a good water transport ability and a fast water evaporation rate. According to the moisture management test, PS electrospun nanofiber composite yarn-based fabrics exhibited a relatively high one-way transport index R (400%), claiming an enhanced moisture management performance. Finally, specific surface area tests and finite element analyses were used to analyze the water transport mechanism inside the yarns. The results proved that a small number of electrospun fibers played a predominant role in enhancing the moisture management ability of the composite yarns.

Development of Coolsmart Functional Knitted Fabrics

2012 ◽  
Vol 503-504 ◽  
pp. 498-502 ◽  
Author(s):  
Lan Qing Feng ◽  
Yan Jun Liu
Keyword(s):  
Pattern Formation ◽  
Moisture Absorption ◽  
Raw Materials ◽  
Knitted Fabric ◽  
Machine Code ◽  
Knitted Fabrics ◽  
Bacterial Function ◽  
Fabric Structures ◽  
Selection Of

Based on the main features of coolsmart fiber and the theory of knitted fabric structures， two structures of sports and leisure knitted fabrics with fast moisture absorption, description and anti-bacterial function are introduced in this article, detailing the selection of raw materials, pattern formation effect, the machine code organization and cam set out.

Effects of Laundering on Moisture Management and Air Permeability of Different Chitosan Treated Nylon 6,6 Elastane Fabrics Using EDTA and Triton X-100

2021 ◽  
Vol 58 (2) ◽  
pp. 97-105
Author(s):  
Nilüfer Yıldız Varan ◽  
Yavuz Çaydamlı
Keyword(s):  
Photoelectron Spectroscopy ◽  
Ethylenediaminetetraacetic Acid ◽  
Lower Layer ◽  
Air Permeability ◽  
Complexing Agent ◽  
Three Solutions ◽  
Knitted Fabrics ◽  
Moisture Management ◽  
Nylon 6,6 ◽  
Triton X

Abstract This study investigates the effect of washing fabrics (nylon 6.6 powernet knitted fabrics with 30% spandex) treated with chitosan on their moisture management and air permeability. The knitted fabrics were treated with three different solutions of chitosan and dimethylol dihydroxyethylene urea (DMDHEU); in addition to chitosan and DMDHEU, one solution contained the complexing agent ethylenediaminetetraacetic acid (EDTA) and the other contained the nonionic surfactant and penetration agent octylphenol ethoxylate. The three solutions were compared in terms of their effect on moisture management and air permeability properties. Nylon fabrics treated and washed with these solutions were characterized by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Nylon fabrics treated with chitosan and DMDHEU showed the potential to transfer liquid moisture to the lower layer and keep the layer next to the skin dry after 20 washes.

Influence of sublimation process on air permeability and water absorption dynamics

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Brigita Kalendraite ◽  
Jolita Krisciunaite ◽  
Daiva Mikucioniene
Keyword(s):  
Water Absorption ◽  
Design Methodology ◽  
Air Permeability ◽  
Knitted Fabrics ◽  
Content Type ◽  
Sublimation Process ◽  
Textile Fabrics ◽  
High Temperature And Pressure ◽  
Before And After ◽  
Temperature And Pressure

PurposeThe purpose of this research was to find the influence of sublimation process on air permeability and water absorption dynamics of knitted and woven polyester-based fabrics.Design/methodology/approachThree different sublimation designs were prepared and applied (keeping the same sublimation parameters) for eight variants of knitted and four variants of woven polyester-based fabrics. Air permeability and water absorption dynamics during 180s period was measured and compared before and after the sublimation process.FindingsAccording to the obtained results, high temperature and pressure applied in sublimation process have influence on the porosity and air permeability of knitted fabrics; however, the influence on water absorption dynamics is minimal. Sublimation design dos not have any influence on the mentioned properties.Originality/valueThe obtained results of the sublimation process influence on air permeability and water absorption dynamics of knitted and woven polyester-based fabrics will help to understand how sublimation process can affect comfort properties of textile fabrics.

scholarly journals The Influences of Loop Length and Raw Material on Bursting Strength Air Permeability and Physical Characteristics of Single Jersey Knitted Fabrics

2017 ◽  
Vol 12 (1) ◽  
pp. 155892501701200
Author(s):  
Züleyha Değirmenci ◽  
Ebru Çoruh
Keyword(s):  
Shape Factor ◽  
Strength Properties ◽  
Air Permeability ◽  
Raw Material ◽  
Unit Weight ◽  
Loop Length ◽  
Knitted Fabrics ◽  
Bursting Strength ◽  
Loop Shape ◽  
Single Jersey

This paper reports the effect of loop length and raw material on the air permeability and the bursting strength of plain knitted fabrics. In this study, a series of plain knitted fabrics were produced on a circular knitting machine with cotton, polyester, acrylic and viscose by Ne 30/1 yarns. Each fabric type was produced with four different stitch lengths. All the fabrics were knitted at the same machine setting in order to determine the effect of their structure on the fabric properties. Their geometrical and physical properties were experimentally investigated. The influences of the loop length and the raw material on the number of the courses per cm, number of the wales per cm, loop shape factor, thickness, fabric unit weight, tightness factor, air permeability and bursting strength are analyzed. Statistical analysis indicates that raw material and loop length significantly parameters affect the air permeability and the bursting strength properties of the fabrics.

Optimization of Knitted Fabric Comfort and UV Protection using Desirability Function

2016 ◽  
Vol 11 (4) ◽  
pp. 155892501601100 ◽  
Author(s):  
Anindya Ghosh ◽  
Prithwiraj Mal ◽  
Abhijit Majumdar ◽  
Debmalya Banerjee
Keyword(s):  
Thermal Conductivity ◽  
Desirability Function ◽  
Air Permeability ◽  
Quality Parameters ◽  
Uv Protection ◽  
Knitted Fabric ◽  
Uv Resistance ◽  
Knitted Fabrics ◽  
Target Values ◽  
Fabric Comfort

The present study deals with the optimization of multiple quality parameters of single jersey and 1×1 rib knitted fabrics using the desirability function approach. Comfort properties such as air permeability, thermal conductivity and safety properties such as UV protection are combined to yield an ‘overall desirability’ varying from zero to one. The overall desirability has been maximized versus target values for air permeability, thermal conductivity and UV resistance. Experimental validation confirms that the proposed method can be used to design a knitted fabric with desired comfort and UV resistance characteristics.

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