The Effect of Inner Layer Fiber Diameter and Fabric Structure on Transplanar Water Absorption and Transfer of Double-layered Knitted Fabrics

2021 ◽  
Vol 22 (2) ◽  
pp. 578-586
Author(s):  
Bahareh Yousefi ◽  
S. Mohammad Hosseini Varkiani ◽  
Siamak Saharkhiz ◽  
Zahra Khorram Toussi
Keyword(s):  
Water Absorption ◽  
Fiber Diameter ◽  
Knitted Fabrics ◽  
Fabric Structure ◽  
Layer Fiber

scholarly journals Electrical Resistance of Stainless Steel/Polyester Blended Knitted Fabrics for Application to Measure Sweat Quantity

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1015
Author(s):  
Qing Chen ◽  
Lin Shu ◽  
Bailu Fu ◽  
Rong Zheng ◽  
Jintu Fan
Keyword(s):  
Stainless Steel ◽  
Heat Flow ◽  
Water Absorption ◽  
Electrical Resistance ◽  
Sweat Rate ◽  
Skin Surface ◽  
Knitted Fabrics ◽  
Absorption Ratio ◽  
Skin Wetness ◽  
Hydrophilic Treatment

Skin wetness and body water loss are important indexes to reflect the heat strain of the human body. According to ISO 7933 2004, the skin wetness and sweat rate are calculated by the evaporative heat flow and the maximum evaporative heat flow in the skin surface, etc. This work proposes the soft textile-based sensor, which was knitted by stainless steel/polyester blended yarn on the flat knitting machine. It investigated the relationship between electrical resistance in the weft/warp directions and different water absorption ratio (0–70%), different sample size (2 cm × 2 cm, 2 cm × 4 cm, 2 cm × 6 cm and 2 cm × 8 cm). The hydrophilic treatment effectively improved the water absorption ratio increasing from 40% to 70%. The weft and warp direction exhibited different electrical behaviors when under dry and wet conditions. It suggested the weft direction of knitted fabrics was recommended for detecting the electrical resistance due to its stable sensitivity and linearity performance. It could be used as a flexible sensor integrated into a garment for measuring the skin wetness and sweat rate in the future instead of traditional measurements.

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.

Analyzing the Effect of Fiber, Yarn and Fabric Variables on Bagging Behavior of Single Jersey Weft Knitted Fabrics

2013 ◽  
Vol 8 (3) ◽  
pp. 155892501300800 ◽  
Author(s):  
Mitra Karimian ◽  
Hossein Hasani ◽  
Saeed Ajeli
Keyword(s):  
Optimum Process ◽  
Process Conditions ◽  
Knitted Fabrics ◽  
Yarn Twist ◽  
Fabric Density ◽  
Fabric Structure ◽  
Controllable Factors ◽  
Yarn Count ◽  
The Individual ◽  
Single Jersey

This research investigates the effect of fiber, yarn and fabric variables on the bagging behavior of single jersey weft knitted fabrics interpreted in terms of bagging fatigue percentage. In order to estimate the optimum process conditions and to examine the individual effects of each controllable factor on a particular response, Taguchi's experimental design was used. The controllable factors considered in this research are blending ratio, yarn twist and count, fabric structure and fabric density. The findings show that fabric structure has the largest effect on the fabric bagging. Factor yarn twist is second and is followed by fabric density, blend ratio and yarn count. The optimum conditions to achieve the least bagging fatigue ratio were determined.

Analysis of warp knitted fabric structure. Part I: a 3D straight line model for warp knitted fabrics

2011 ◽  
Vol 102 (12) ◽  
pp. 1065-1074 ◽  
Author(s):  
Hadi Dabiryan ◽  
Ali A.A. Jeddi
Keyword(s):  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Line Model ◽  
Fabric Structure ◽  
Straight Line ◽  
Warp Knitted Fabric

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.

Swelling Behaviors and Water States of Fibrous Membranes Electrospun from PHBV-g-PVP

2012 ◽  
Vol 482-484 ◽  
pp. 1478-1482
Author(s):  
Wei Wang ◽  
Jian Da Cao ◽  
Ping Lan
Keyword(s):  
Water Absorption ◽  
Fiber Diameter ◽  
Bound Water ◽  
Free Water ◽  
Great Capacity ◽  
Electrospun Membranes ◽  
Dsc Characterization ◽  
Fibrous Membranes ◽  
Water Swelling ◽  
Swelling Behaviors

Fibrous membranes with a fiber diameter between 320 and 460 nm were electrospun from poly(3-hydroxybutyrate-co-3-hydroxyvalerate)-graft-poly(N-vinylpyrrolidone) (PHBV-g-PVP) and their specific water absorption behaviors were investigated for biomaterial purposes. Water swelling experiments indicate that all samples have a great capacity for water uptake, while a remarkable overshoot occurs for the membranes electrospun from PHBV-g-PVP other than those from PHBV. DSC characterization indicates that only non-freezable bound water and free water can be distinguished in all electrospun membranes.

Shear Properties of Wool Plain-Knitted Fabrics

1976 ◽  
Vol 46 (4) ◽  
pp. 265-272 ◽  
Author(s):  
R. J. Hamilton ◽  
R. Postle
Keyword(s):  
Shear Force ◽  
Hysteresis Loops ◽  
Shear Behaviour ◽  
Knitted Fabric ◽  
Shear Rigidity ◽  
Knitted Fabrics ◽  
Fabric Structure ◽  
Applied Tension ◽  
Constant Tension ◽  
Applied Relaxation

An instrument is described for the measurement of shear in knitted fabrics under conditions of constant tension and “equal length of side.” Shear hysteresis loops were obtained for a series of wool plain-knitted fabrics of different tightness factors. Typical curves and fabric parameters (shear rigidity and coercive shear force) are presented for the fabrics tested in two states of relaxation using several values of applied tension. The results have been analyzed statistically and a simple friction-elastic rheological model of the shear behaviour is examined. This model is interpreted in terms of the knitted fabric structure and the changes that occur when a shear deformation is applied. Relaxation was found to reduce the values of both the shear rigidity and the coercive shear force. The effect of tension was investigated, and suitable levels of tension are recommended for testing knitted fabrics in shear.

Investigation of the Two-Bar Warp-Knitted Fabric Structure Effect on Luster Value

2014 ◽  
Vol 9 (2) ◽  
pp. 155892501400900
Author(s):  
Saeed Ajeli ◽  
Zoleykhah Ahmadvand
Keyword(s):  
Diffuse Reflection ◽  
Specular Reflection ◽  
Knitted Fabric ◽  
Knitted Fabrics ◽  
Fabric Structure ◽  
Measuring Surface ◽  
Before And After ◽  
Dark Color ◽  
Points Of View ◽  
Warp Knitted Fabric

Consumer points of view determine economical value of fabrics. Fabric luster plays a momentous role in attracting people's attention, especially for clothing and domestic purposes. Luster is defined by intensity of both specular and diffuse light reflection off of a surface. There are various methods for measuring surface luster. Gloss. Luster is described as the ratio of specular reflection in one angle to diffuse reflection in another angle. Two-bar warp knitted polyester fabrics such as Tricot, Locknit, Satin, reverse Locknit and Sharkskin in three different densities were provided. A mini gloss apparatus was applied to measure fabric specular reflection in the angle of sixty degrees, before and after disperse dying with different colors of white, blue and yellow. Results suggest that luster is a function of knitted fabric type, color and density. Enhancement of technical back luster resulted from longer underlap of the front bar. However, it did not change the technical face luster significantly. Density increased in all knitted fabrics and caused the luster to decrease. Dark color fabrics showed lower luster compared to light ones.

Evaluation of Multi-Property Knitted Fabrics

2011 ◽  
Vol 332-334 ◽  
pp. 634-637
Author(s):  
Shu Rong Hu ◽  
Yun Yi Wang ◽  
Jun Li
Keyword(s):  
Principal Component Analysis ◽  
Principal Component ◽  
Forecast Model ◽  
Component Analysis ◽  
Knitted Fabrics ◽  
Fabric Structure ◽  
Structure Thickness ◽  
Static Performance ◽  
Design And Manufacture

This paper focuses on the anti-static performance of absorption and quick-drying knitted fabrics using in sportswear. Firstly, the parameters such as fiber component, fabric structure, thickness and density are obtained, and the anti-static performance of 11 kinds of knitted fabrics is tested using the static voltage. Secondly, the anti-static performance is explained by parameters based on improved regression and principal component analysis. According to the analysis, an explained and forecast model is build. This can be a guide to set the parameters during the multi-property knitted fabrics design and manufacture.

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.

Sign in / Sign up

Export Citation Format

Share Document