Theoretical and experimental analysis of bending rigidity of plain and twill woven fabrics

2017 ◽  
Vol 108 (10) ◽  
pp. 1700-1706 ◽  
Author(s):  
M. R. Sadeghi ◽  
Ali A. A. Jeddi ◽  
S. Shaikhzadeh Najar
Keyword(s):  
Experimental Analysis ◽  
Woven Fabrics ◽  
Bending Rigidity

scholarly journals Comfort-Related Properties of Double-Layered Woven Car Seat Fabrics

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Pelin Gürkan Ünal ◽  
Gonca Özçelik Kayseri ◽  
H. Diren Mecit
Keyword(s):  
Bottom Layer ◽  
Air Permeability ◽  
Woven Fabrics ◽  
Motor Vehicles ◽  
Bending Rigidity ◽  
Process Variables ◽  
Car Seat ◽  
Moisture Management ◽  
Technical Textiles ◽  
Pattern Number

Abstract Seat upholstery fabrics for vehicles are crucial products as technical textiles in motor vehicles make up approximately 15% of the total manufactured technical textiles worldwide and more than 50% of the production belongs to the woven fabrics because of their appropriate properties for this application. The current work presents the comfort-related properties of the woven fabrics designed to be used in automotive seat upholstery. For this aim, double-layered woven fabrics were produced with four different process variables such as bottom layer pattern, number of interlacing warps in a unit report, number of interlacing picks per top warp, and number of weft skips by using Taguchi experimental design. Besides handle related properties, such as circular bending rigidity, surface roughness properties, and thermo physiological comfort related properties that include air permeability, thermal resistance, and moisture management properties were measured and analyzed based on Taguchi experimental analysis.

scholarly journals New indicators on fabric drape evaluation based on three-dimensional model

2019 ◽  
Vol 90 (11-12) ◽  
pp. 1291-1300
Author(s):  
Zhicai Yu ◽  
Yueqi Zhong ◽  
R. Hugh Gong ◽  
Haoyang Xie
Keyword(s):  
Point Cloud ◽  
Three Dimensional ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Angle Distribution ◽  
Bending Rigidity ◽  
Three Dimensional Model ◽  
Fabric Drape ◽  
Fabric Weight ◽  
The Relationship

To evaluate the ability of woven fabrics to drape in a more accurate way, a three-dimensional point cloud of a draped woven fabric was captured via an in-house drape-scanner. A new indicator, total drape angle (TDA), was proposed based on the three-dimensional fabric drape to characterize the ability of a woven fabric to drape. The relationship between TDA and the drape coefficient (DC) was analyzed to validate the performance of TDA. The result indicated that TDA is more stable and representative than the traditional DC in characterizing the ability of a woven fabric to drape. In addition, the drape angle distribution function (DADF) of the triangular mesh was employed to describe fabric drape, as well as to bridge the gap between drape configuration and the warp bending rigidity of woven fabric. The results showed that the correlation coefficient between the real warp bending rigidity value and what was predicted warp based on DADF and fabric weight was 0.952.

A novel approach for precise determination of in-plane shear behavior of woven fabrics

2016 ◽  
Vol 87 (11) ◽  
pp. 1335-1348 ◽  
Author(s):  
Nazli Uren ◽  
Eren Oner ◽  
Ayse Okur
Keyword(s):  
Mechanical Properties ◽  
Correlation Coefficients ◽  
Shear Behavior ◽  
Precise Determination ◽  
Woven Fabrics ◽  
Raw Material ◽  
Bending Rigidity ◽  
Plane Shear ◽  
Novel Approach ◽  
Shear Frame

The ability of a textile product to change shape under motion-based diagonal forces defines the shear behavior of a fabric and its suitability for a wearable garment design. The principal aim of this study is to introduce a new shear frame and investigate the effects of raw material and setting on in-plane shear behavior of woven fabrics. For this purpose, the mechanical properties of systematic and commercially available non-systematic fabrics were measured. A novel approach to determine the in-plane shear behavior of woven fabrics via two complementary shear frame measurements was presented. The results were also compared with a conventional method known as the bias extension method. It was established that the proposed method provides more accurate and precise results. In order to investigate the correlation between in-plane shear behavior and other mechanical properties, bending rigidity and extension ability of fabrics were measured as well. The analyses regarding the relations between selected fabric parameters showed that there are considerably high correlation coefficients. The effect of raw material and setting was likewise found out to be statistically significant.

scholarly journals Determining Formability Function of Worsted Woven Fabrics in Terms of Fabric Direction

2015 ◽  
Vol 10 (2) ◽  
pp. 155892501501000
Author(s):  
Nazanin Ezazshahabi ◽  
Fatemeh Mousazadegan ◽  
Siamak Saharkhiz ◽  
Masoud Latifi
Keyword(s):  
Gaussian Function ◽  
Woven Fabrics ◽  
Weft Yarn ◽  
Bending Rigidity ◽  
Yarn Twist ◽  
Fabric Density ◽  
Small Load ◽  
Sample Orientation ◽  
Property Changes ◽  
Garment Manufacturing

Formability is a characteristic which determines fabric behavior during garment manufacturing and wear. It depends on fabric properties such as weave type, fabric density, warp and weft yarn twist, bending rigidity, and fabric tensile behavior, while tolerating small load values. It should be noted that this property changes with fabric direction and is not constant. In this research, fabric formability was investigated for worsted woven fabrics by evaluating this property in various fabric directions. It was concluded that fabric formability could be expressed as a Gaussian function of sample orientation in the warp direction. By studying several weave structures with different weft densities, the effect of firmness on fabric formability was clarified, which lead to better interpretation of fabric adaptability to the applied deformations.

Dynamic drape behaviours of wool woven suiting fabrics considering real-time use

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Gonca Balci Kilic ◽  
Murat Demir ◽  
Musa Kilic
Keyword(s):  
Real Time ◽  
Time Use ◽  
Design Methodology ◽  
Rotation Speed ◽  
Woven Fabrics ◽  
Unit Weight ◽  
Bending Rigidity ◽  
Content Type ◽  
Deformation Properties ◽  
Time Usage

PurposeThe purpose of this paper is to analyse dynamic drape behaviours of 100% wool woven suiting fabrics considering real-time usage.Design/methodology/approachDynamic drape coefficients of 100% wool woven fabrics were measured at different rotation speeds (25, 75, 125 and 175 rpm) with a commercially used fabric drape tester which works on image processing principle. Average daily walking speed of male and female volunteers was determined and the closest rotation speed was selected to calculate dynamic drape coefficient at walking (DDCw). Besides, bending rigidity and shear deformation properties, which are known to be related to the static drape behaviours of the fabrics, were also measured and the relationships between these parameters and DDCw were examined.FindingsAs a result of the experimental study, it was found that dynamic drape coefficients become greater, which means the fabrics take flatter position, with the increase of the rotation speed. In addition, it was also seen that parameters known to be related to static drape behaviours such as unit weight and bending stiffness have less effect on the dynamic drapes of fabrics. For the estimation of dynamic drape behaviour of fabrics, parameters such as static perimeter, dynamic perimeter, etc. are found more significant.Originality/valueTo date, although studies about dynamic drape behaviours of the fabrics claimed that dynamic drape gives more realistic results for in wearer experience, few of them focused on the rotation speed of dynamic drape tester for real-time usage. As dynamic drape behaviours of fabrics may differ for different rotation speed, determining appropriate speed in accordance with real-time usage gives more realistic results.

scholarly journals The Influence of Structure of Multilayer Woven Fabrics on Their Mechanical Properties

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1315
Author(s):  
Ewa Witczak ◽  
Izabela Jasińska ◽  
Iwona Krawczyńska
Keyword(s):  
Mechanical Strength ◽  
Structural Characteristics ◽  
Structural Models ◽  
Strength Properties ◽  
Woven Fabrics ◽  
Breaking Force ◽  
Bending Rigidity ◽  
High Mechanical Strength ◽  
Conveyor Belts ◽  
Cyclic Tensile Test

Multilayer woven fabrics used for conveyor belts must be characterized by high mechanical strength. The design process of multilayer woven fabrics for such application requires taking into account the structural characteristics of the fabric, which allows to adjust the final product properties to the dedicated use. The geometry of warp threads—means stuffer and binding is the decisive aspect, which influences the strength properties of multilayer woven fabrics and materials made with their use as well. The aim of this work was to examine the possibility of shaping mechanical strength and bending rigidity of multilayer woven fabrics by changing the order of introducing weft threads into individual layers. The eight variants of multilayer woven fabrics were manufactured using laboratory harness loom. They were produced using different structural models in two weft variants, then tested. The mechanical features were determined, such as breaking force, recovered and unrecovered elongations in cyclic tensile test, stiffness rigidity. The analysis of the obtained results confirmed, that both the model and the order in which the weft threads were introduced into individual layers influence the mechanical strength and bending rigidity of multilayer woven. It was found, that the strength properties characterized by the above mentioned indicators are influenced by the number of threads weaved as both the stuffer and binding warp.

Measurement of local shear deformation in fabric drape using three-dimensional scanning

2020 ◽  
pp. 004051752096334
Author(s):  
Liu Yang ◽  
KyoungOk Kim ◽  
Masayuki Takatera
Keyword(s):  
Shear Deformation ◽  
Three Dimensional ◽  
Shear Stiffness ◽  
Measuring Method ◽  
Woven Fabrics ◽  
Bending Rigidity ◽  
Double Curvature ◽  
Fabric Drape ◽  
Local Shear ◽  
Square Cells

We propose a measuring method of shear deformation in drape using three-dimensional (3D) scanning. We measured the local shear angles in fabric drape based on the Fabric Research Laboratories (FRL) drape test for woven fabrics using the proposed method. We investigate the effects of the relative positions of the node to the center grainlines that cross at the fabric center, and the bending and shear properties of fabric on the shear angles. To measure the local shear deformation, we obtained 3D drape shapes of four different fabrics with three to six nodes. We covered the obtained drape shapes using a fabric model composed of square cells that allowed shear deformation. By calculating the shear angles of the cells, we obtained the local shear deformation. We found that the FRL drape can be characterized by three areas, except for the flat areas of the support disks: (a) areas along the center grainlines with zero or small shear angles within 3°, which could result from single curvature bending; (b) areas in the bias directions with relatively large shear angles over 3°, which could result from double curvature bending; and (c) polygon edges connected by tangents of the support disk with relatively larger shear angles than their surroundings, which could result from both bending and shear deformation, such as folding and wrinkles. By investigating the relationships between areas with large shear angles and the bending rigidity/shear stiffness, we clarified that the bending rigidity indirectly affects the local shear deformation of drape.

scholarly journals Development of Sustainable and Functional Fabrics from Recycled and Nanocomposite Polyester Fibers

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Solomon Addis ◽  
Hermela Ejegu ◽  
Messay Dubale ◽  
Wondwossen Mamuye
Keyword(s):  
Antimicrobial Property ◽  
Antimicrobial Properties ◽  
Woven Fabrics ◽  
Bending Rigidity ◽  
Recycled Pet ◽  
E Coli ◽  
Antimicrobial Efficiency ◽  
Yarn Properties ◽  
Polyester Fibers ◽  
Silver Nanocomposite

Antimicrobial knitted and woven fabrics were developed from recycled polyester (PET) and silver nanocomposite (SNC) fibers. Two different fabrics were produced from two different blend proportions of the fibers. The antimicrobial properties of fabrics were tested against those of the S. aureus (Gram-positive) and E. coli (Gram-negative) bacterial natures, and their yarn properties and hand-related characteristics were investigated. The results show uneven fabrics properties such as irregularity in thickness and SNC-recycled PET fiber ratio increase, and the tensile strength decreases while the NEP number increases. This implies that fabrics made from a blend with higher SNC-recycled PET fiber ratios have higher surface roughness levels, higher bending rigidity, and harder texture. As a consequence, the antimicrobial efficiency of the fabrics was improved as the percentage of SNC increased. The recycled PET fiber within the blended yarn shows a good antimicrobial property (above 90%) observed in all fabrics. The reduction of bacterial colonies was constantly exceeding 90% for both E. coli and S. aureus in all fabric samples.

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