2024-03-28T19:02:39Z
http://www.itast.ir/?_action=export&rf=summon&issue=10707
Journal of Textiles and Polymers
JTP
2322-5203
2322-5203
2019
7
1
An Investigation of Structural-Mechanical Properties of Spun-Bonded Non-Woven Using Computer Vision Method
Mina
Emadi
Mohammad Ali
Tavanaie
Pedram
Payvandy
This paper aims at the measurement of surface uniformity, thermally-bonded points, distribution of fibers orientation and local displacement in tensile testing for spunbonded nonwoven polypropylene fabrics. For this purpose, an image processing method was used to produce clustered images based on the k-means clustering algorithm along with Davies-Bouldin index and the PSNR image quality evaluation method. Then, the quadrant method for surface uniformity, an image processing method based on morphological operators for uniformity of thermally-bonded points, the regionprops function (RF) method for distribution of fiber orientation and the digital image correlation (DIC) method for local displacement were used to calculate the parameters of nonwoven samples. Also, the relationships between image processing and the experimental results of tensile tests were studied. The results indicated that the structural properties of a fabric, such as surface uniformity, bonded structure, distribution of fiber orientation and critical points, have great impacts on its tensile properties at the selected weights and non-uniformity levels. Hence, a sample with a higher level of uniformity and, consequently, more regular bonding points with a higher bonding percentage, better distribution of fiber orientation and less critical points offers the best tensile properties.
image processing
K-means Clustering
regionprops function
Digital Image Correlation
tensile properties
spunbonded non-woven fabric
2019
01
01
3
13
http://www.itast.ir/article_83094_74b8ac3c9977b52a1009f3bfa67a130a.pdf
Journal of Textiles and Polymers
JTP
2322-5203
2322-5203
2019
7
1
Application of Response Surface Methodology for Modeling the Color Strength of Natural Hair Colorant
Mohsen
Hadizadeh
Mohammad
Khajeh Mehrizi
Zahra
Shahi
Conventional methods of hair dyeing involve the use of chemical materials that result in unpleasant side effects, such as breakage of hair and cancer. A need was felt to formulate a dye containing plant products which is safe for use and does not have the problems of hypersensitive reactions. In this study, formulations containing natural hair colorants with madder dye and additives like herbal oils (almond, olive and coconut), ammonia and lemon juice were prepared. Response surface method was used to analyze color strength of hair colorant as dependent variable. Dye concentration, bath temperature and additives have been selected as independent variables. Color strength predictive model of natural hair colorants with madder dye is provided and this model has a high coefficient of determination. Also, it was indicated that, bath temperature has a great effect on enhancing the color strength of natural hair colorant. The optimization conditions of dyeing process parameters for polyhedral hair colorant production using response surface methodology were identified.
Response Surface Methodology
Natural colorant
Madder
color strength
Modeling
2019
01
01
15
23
http://www.itast.ir/article_83096_617fc5d74637ba690f338768d93d733d.pdf
Journal of Textiles and Polymers
JTP
2322-5203
2322-5203
2019
7
1
The Consequences of Temperature on the Shrinkage Properties of Cotton Spandex Woven Fabric
Shariful
Islam
Shaikh Md.
Mominul Alam
Shilpi
Akter
The purpose of this research study was to establish the effect of heat-setting temperature on the shrinkage properties of cotton spandex woven fabric. Industrial settings, including machine speed, machine width and temperature had some direct effects on the shrinkage properties of cotton spandex fabric. Heat-setting did not allow to further compress the spandex fibers, so the cotton spandex could not shrink further when contacted with water. Heat-setting controlled and fixed the spandex portion, so that recovery forces seemed to be reduced. Basically, heat-setting also helped to condense the fiber size in core spun yarns. Quite a number of trials were carried out in textile mills with some adjusted industrial settings to control the shrinkage properties of cotton spandex woven fabric. Three cotton spandex fabrics with different constructions and compositions were used in this research. In the experiments, the temperature ranged from 180 °C to 200 °C and the machine speed varied from 24 to 28 meter per minute (MPM). Mercerized fabric was used to heat-set in a stenter machine. Heat was applied to the cotton spandex fabric very accurately, because overheat would spoil the spandex fabric. This study proved that temperature had a great effect on the shrinkage properties of cotton spandex fabric, and further research needs to be undertaken on this matter. Keywords: cotton spandex, heat treatment, fibers stabilization, industrial setting, shrinkage properties I. INTRODUCTIONT here is a great importance of this work in textile and clothing engineering since the task of controlling the shrinkage of cotton spandex woven fabric is critical. Heat Shariful Islam Bangladesh University of Textiles, Dhaka 1208, Bangladesh.S.M.M. Alam Department of Textile Machinery Design and Maintenance, Faculty of Science and Engineering, Bangladesh University of Textiles, Bangladesh.S. Akter Department of Fabric Engineering, Faculty of Textile Engineering, Bangladesh University of Textiles, Bangladesh.Correspondence should be addressed to Shariful Islam e-mail: sharifultextiles@gmail.com
cotton spandex
Heat treatment
fibers stabilization
industrial setting
shrinkage properties
2019
01
01
25
29
http://www.itast.ir/article_84416_5a95fcdc3f668c37127d47f265270acd.pdf
Journal of Textiles and Polymers
JTP
2322-5203
2322-5203
2019
7
1
Behavior Analysis of the Nonwoven Needle-Punched Polyester Fabrics Due to Compression Loading
Hasan
Mashrouteh
Esfandiar
Ekhtiyari
Saeed
Fattahi
Ali
Aflatounian
Hosein
Rahimi
Milad
Sadeghi-Sadeghabad
This study investigates bursting strength, puncture resistance and the relevant real elongations of the nonwoven needle-punched polyester fabrics using compressive behavior study and statistical design of experiment known as threefactor factorial design. To evaluate effect of main parameters of fabric structure, seventy-five samples were prepared and a prediction model was developed by multiple linear regression method. The results unanimously showed that samples have undeniable similarities in the compression behavior, so that four distinguished regions can be considered through the path tracing of the force-deflection curves. Additionally, it was concluded that the puncture’s self-socking position takes place in less magnitude of elongation in comparison to the similar position of bursting. Stress concentration in puncture causes that the fabric rupture was due to fiber breakage rather than its slippage. Whereas, the bursting ruptures of the fabric are further the result of fiber slippage. This is clearly due to geometry of ball-shaped device which is led to the relative uniformity of the quality of bursting loading.
nonwoven needle-punched fabric
bursting
puncture
Strength
real elongation
2019
01
01
33
43
http://www.itast.ir/article_83097_8f5f54c6818811a3b72e5ffc9c92c785.pdf
Journal of Textiles and Polymers
JTP
2322-5203
2322-5203
2019
7
1
Inkjet-Fabricated Capacitors on Paper and Textile Fabrics
Mohammad
Momeni Nasab
Seyed Mansour
Bidoki
Abbas Ali
Heidari
In recent years, much attention has been given to various printing techniques to produce low-cost electronic ingredients and equipment. Inkjet printing is one of the most promising methods for printing circuit ingredients in one step almost on any substrates. In this study, the inkjet printing technique was employed for chemical deposition of silver nanoparticles by ejecting aqueous solutions of silver nitrate as metal salt and ascorbic acid as reducing agent on flexible substrates such as paper and fabric. Inkjet-deposited silver patterns were used as capacitors in electrical circuits and their performance was tested. Different values of capacitance were gained by a simple change in the size and shape of the printed capacitor. The highest capacitance values gained on an inkjet-deposited capacitor (a parallel plate capacitor with 1 cm2 overlapped area) on paper and fabric were 85.1 and 1370 pF, respectively. Inkjet-printed capacitors (interdigital capacitors with six fingers) could display a capacitance around 20 and 6 pF on paper and fabric, respectively. Levels of capacitance achieved by the new inkjet deposition technique can successfully match and exceed the capacitance levels of conventional capacitors produced using current multi-step fabricating methods.
Silver nanoparticles
Inkjet Printing
inkjet deposition
printed electronics
printed capacitors
2019
01
01
45
52
http://www.itast.ir/article_83098_16042dba2e6f07a8f04c460440521964.pdf
Journal of Textiles and Polymers
JTP
2322-5203
2322-5203
2019
7
1
Analyzing the Tensile Behavior of Warp-Knitted Fabric-Reinforced Composites. Part II. Modeling the Tensile Modulus of Composite
Hadi
Dabiryan
Ali Asghar
Asgharian Jeddi
Mohammad Hossein
Ashouri
In the first part of this series, a straight-line geometrical model was generated for Queen’s Cord warpknitted fabrics as reinforcement of the composite. In this part, the Rule of Mixture (ROM) was modified to calculate the elastic modulus of composites reinforced with Queen’s Cord fabrics using the straight-line model. For this purpose, the geometrical model was divided into different segments, and their angle with the direction of applied force was obtained. Considering the alignment of each segment, the effective length of different segments of the unit-cell of fabrics was calculated. Using the effective length, an orientation coefficient was defined for tensile modulus of fibers in ROM. In order to evaluate the modified ROM, nine types of composites were fabricated using produced Queen’s Cord fabrics. The results showed that modified ROM is closer to experiments than previous modifications.
tensile modulus
rule of mixture
queen’s cord
warp-knitted fabrics
2019
01
01
53
60
http://www.itast.ir/article_83099_0c07251fc85c5b3e9c201b2c0b2310f8.pdf
Journal of Textiles and Polymers
JTP
2322-5203
2322-5203
2019
7
1
Applying Fuzzy Logic Model for Bending Rigidity Evaluation of Woven Fabrics
Najmeh
Dehghan-Manshadi
Mohsen
Hadizadeh
Fabric bending rigidity evaluation plays a very important role in determining end-use quality of products. This property has a non-linear behavior. Many techniques, such as mathematical, multiple regression, artificial neural network model, etc., have been used to predict mechanical properties of fabrics. This paper presents a method to model the bending rigidity of plain-woven fabrics using fuzzy logic. The input variables are yarn count, yarn diameter, yarn spacing, yarn bending rigidity and yarn length. The output variable is fabric bending rigidity. These results revealed the efficiency of fuzzy model to predict bending rigidity based on the mentioned parameters. Then the prediction accuracy of fuzzy logic model in comparison with three modeling methodologies based on mathematical, empirical and artificial neural network was evaluated. The comparison of the prediction performance showed that the fuzzy model is more powerful than the other models.
Fuzzy logic
bending rigidity
woven fabric
2019
01
01
61
68
http://www.itast.ir/article_83100_414ffb356f16291875b48d35c3da0b44.pdf