scholarly journals THE EFFECTS AND INTERACTIONS OF THE MAIN KNITTED FABRICS PARAMETERS

2021 ◽  
Vol 9 (08) ◽  
pp. 816-824
Author(s):  
H. Souid ◽  
◽  
M. Sahnoun ◽  
M. Cheikhrouhou ◽  
◽  
...  
Keyword(s):  
Dimensional Stability ◽  
Structural Parameters ◽  
Knitted Fabrics

In the work reported here, plain and 1*1 rib flat knitted acrylic fabrics, of three clows were subject to four relaxation treatments, in order to investigate their dimensional stability. The key element studied to understand the dimensional behaviour of knitted fabrics is the geometry of the loop. For the case, we have measured the structural parameters, thickness, weight and course and wale shrinkages.

Physiological signal analyses of frictional sound by structural parameters of warp knitted fabrics

2005 ◽  
Vol 6 (1) ◽  
pp. 89-94 ◽  
Author(s):  
Gilsoo Cho ◽  
Chunjeong Kim ◽  
Jayoung Cho ◽  
Jiyoung Ha
Keyword(s):  
Structural Parameters ◽  
Knitted Fabrics ◽  
Physiological Signal ◽  
Frictional Sound

scholarly journals Flexible Theoretical Calculation of Loop Length and Area Density of Weft-Knitted Structures: Part II

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4988
Author(s):  
Edgaras Arbataitis ◽  
Daiva Mikucioniene ◽  
Tetiana Ielina ◽  
Liudmyla Halavska
Keyword(s):  
Theoretical Calculation ◽  
Average Length ◽  
Structural Parameters ◽  
Main Idea ◽  
Geometrical Model ◽  
Structural Elements ◽  
Great Flexibility ◽  
Knitted Fabrics ◽  
Length And Area ◽  
Protective Textiles

A simple and flexible method for theoretical calculation of the main structural parameters of various weft-knitted fancy and combined patterns is presented in this article. It is especially important for patterns containing different elements, such as loops, floats of different lengths, tucks, and tuck stitches. Measurement of an actual average length of the loop in these fabrics is complicated because it is necessary to disassemble precisely one pattern repeat to measure the yarn length and divide it by the number of elements in this pattern repeat. For large and complex pattern repeats, this is difficult and usually gives a high number of errors. It is very important to have lengths of structural elements as it helps to predict the main physical properties of knitted fabrics and their mechanical behaviour, which is especially important for protective textiles. The main idea of the proposed method, based on Čiukas geometrical model, is to calculate lengths of various structural elements or even their parts separately, taking into account the number of needle bars and their formation principle, which gives great flexibility to such modelling. The proposed theoretical formulas can be used for various patterned weft-knitted structures containing not only loops but tucks, floats of different lengths, or additional yarns; they give very few errors in empirical calculations and are easy to use.

scholarly journals Comparative Analysis of Knits from Peat Fibre and its Combinations with Other Natural Fibres

2017 ◽  
Vol 25 (0) ◽  
pp. 24-29
Author(s):  
Daiva Mikučioniené ◽  
Lina Čepukonė
Keyword(s):  
Comparative Analysis ◽  
Physical Properties ◽  
Water Adsorption ◽  
Structural Parameters ◽  
Air Permeability ◽  
Raw Material ◽  
Loop Length ◽  
Knitted Fabrics ◽  
Natural Origin ◽  
Mechanical And Physical Properties

Natural and man-made fibres of natural origin are more and more widely used, while consideration of sustainability is constantly increasing. The properties and processing behaviour of newly introduced fibres of natural origin are usually compared and often predicted on the basis of widely investigated fibres; however, this prediction sometimes does not have any confirmed basis. Structural parameters and the majority of mechanical and physical properties of knitted fabrics depend on technical characteristics of the knitting machine, on the properties of yarns as well as on the origin of the raw material. This study attempts to develop knits from new natural peat fibres and their combination with widely used woollen, cotton and elastomeric Lycra yarns and to investigate the influence of peat fibre’s nature on structural parameters such as loop length, wale and course spacing, area density, the tightness factor and on main physical properties such as dimensional stability, air permeability and water adsorption.

Geometrical Modelling of Jacquard Quilted Structures Weft Knitted Fabrics

2016 ◽  
Vol 11 (1) ◽  
pp. 155892501601100
Author(s):  
Lanming Jin ◽  
Gaoming Jiang ◽  
Honglian Cong ◽  
Chenguang Hou
Keyword(s):  
3D Model ◽  
Structural Parameters ◽  
Three Dimensional ◽  
Knitted Fabric ◽  
Loop Model ◽  
Visual Effects ◽  
Knitted Fabrics ◽  
Simulation Process ◽  
Geometrical Modelling ◽  
Simulation Results

Jacquard quilted structure weft-knitted fabrics have many advantages, such as strong stereoscopic patterns, soft handling, adjustable apparel thickness, and use as home textiles. However, the final visual effects of such fabrics are difficult to predict prior to processing because of the rough surface caused by the connecting yarn and the inlay yarn of the fabric. This research applied a three-dimensional (3D) model instead of the original single-loop model to simulate knitted fabric. The 3D model is more suitable for a multilayer fabric because the simulation is quick, real, and convenient. The article includes experiments on structural parameters concerning regular dents of different samples, analysis of parameter data about the surface, and the simulation process with the objective of understanding the computer simulation of fabric. Results show good correlation between the simulation results and the actual fabric. Importantly, we can clearly see the expected effects in the fabrics without going through production and processing. This research will be useful for establishing a quick computer-generated simulation system for multilayer fabrics.

Tactile comfort characterization of knitted fabrics based on the ring-shaped style tester

2020 ◽  
pp. 004051752095739
Author(s):  
Yawen Shao ◽  
Yi Sun ◽  
Dongming Zheng ◽  
Gui Liu ◽  
Zhaoqun Du ◽  
...  
Keyword(s):  
Structural Parameters ◽  
Subjective Evaluation ◽  
Structural Parameter ◽  
Knitted Fabrics ◽  
Left Hand ◽  
Right Hand ◽  
Hand Part ◽  
And Cluster Analysis ◽  
The Right ◽  
Hand Area

The main content of this paper is to objectively characterize the tactile comfort of fabric through the ring-shaped style tester. It mainly explains the objective tactile comfort of knitted fabric through the curve parameters measured by the ring-shaped style tester and structural parameter thickness. In this paper, by adopting the methods of correlation analysis and cluster analysis, the curve parameters, including slope in the linear segments of the left-hand part of the curve ( K1), the right-hand area of the curve ( A2), the distance between the abrupt point and the peak point ( X), the linearity of the left-hand curve ( L) and the ratio of the left-hand area to the right-hand area of the curve ( C), are used. In order to verify its effectiveness, the results of subjective evaluation are compared and analyzed with the objective clustering. The experimental results show that the subjective judgment has good correlation with the objective clustering. This indicates that the curve parameters obtained through the ring-shaped style tester and structural parameters can be used to effectively represent the tactile comfort performance of fabrics.

scholarly journals Wet Relaxation of Electrospun Nanofiber Mats

Technologies ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 23 ◽  
Author(s):  
Timo Grothe ◽  
Lilia Sabantina ◽  
Michaela Klöcker ◽  
Irén Junger ◽  
Christoph Döpke ◽  
...  
Keyword(s):  
Dimensional Stability ◽  
Pure Water ◽  
Dimensional Change ◽  
Solid Content ◽  
Relaxation Processes ◽  
Knitted Fabrics ◽  
Nanofiber Mats ◽  
Mat Thickness ◽  
Solution Parameters ◽  
Pan Nanofiber

Electrospinning can be used to produce nanofiber mats. One of the often used polymers for electrospinning is polyacrylonitrile (PAN), especially for the production of carbon nanofibers, but also for a diverse number of other applications. For some of these applications—e.g., creation of nano-filters—the dimensional stability of the nanofiber mats is crucial. While relaxation processes—especially dry, wet and washing relaxation—are well-known and often investigated for knitted fabrics, the dimensional stability of nanofiber mats has not yet been investigated. Here we report on the wet relaxation of PAN nanofiber mats, which are dependent on spinning and solution parameters such as: voltage, electrode distance, nanofiber mat thickness, and solid content in the solution. Our results show that wet relaxation has a significant effect on the samples, resulting in a dimensional change that has to be taken into account for nanofiber mats in wet applications. While the first and second soaking in pure water resulted in an increase of the nanofiber mat area up to approximately 5%, the dried sample, after the second soaking, conversely showed an area reduced by a maximum of 5%. For soaking in soap water, small areal decreases between approximately 1–4% were measured.

scholarly journals PERFORMANCE PROPERTIES OF KNITTED FABRICS PRODUCED FROM rPET AND COTTON/rPET BLENDED VORTEX AND RING YARNS

2021 ◽  
Vol 2021 ◽  
pp. 208-214
Author(s):  
A. Oruç ◽  
Y. Arıkan ◽  
E. İlanbey ◽  
K. Özşahin
Keyword(s):  
Dimensional Stability ◽  
Raw Materials ◽  
Global Climate ◽  
Point Of View ◽  
Packaging Materials ◽  
Knitted Fabrics ◽  
Performance Properties ◽  
Bursting Strength ◽  
Single Use ◽  
Textile Products

An awareness of environmental issues is crucial for textile engineering due to increasing consumption of textile fibres. In addition, levels of pollution are ever increasing due to single use polymeric packaging materials in our daily life. Single use polymeric packaging materials, such as PET beverage bottles, have impacts on the consumption of raw materials and energy, on the contamination of our water and atmosphere, on human health, on global climate change. In this point of view, the ability of the textile producers to recycle the disposed PET beverage bottles into textile products has a critical importance. In this study, performance properties of knitted fabrics produced from rPET and cotton/rPET blended vortex and ring yarns are investigated to figure out the reproducibility of environmentally friendly textile products. For this aim, 100% rPET, 50-50% rPET-Co and 50-50% VPET-Co yarns were produced by Vortex and Ring Spinning technologies with same yarn number as Ne 30/1. Then the knitted fabric samples were produced from these sample yarns and the fabrics were dyed. Dimensional stability, bursting strength and pilling resistance properties of the fabrics were examined. Dimensional stability properties of rPET used fabrics were found to be similar with the ones which VPET used. Pilling resistance and bursting strength of the sample fabrics were close to each other that rPET usage does not demonstrate any disadvantage. Consequently, rPET fibre usage instead of VPET fibre is found to be appropriate.

scholarly journals Durable Wash-Resistant Antimicrobial Treatment of Knitted Fabrics

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jolita Krisciunaite ◽  
Brigita Kalendraite ◽  
Lina Ragelienė ◽  
Evelina Merkelyte ◽  
Daiva Mikucioniene
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Structural Changes ◽  
Structural Parameters ◽  
Antimicrobial Properties ◽  
Air Permeability ◽  
Antimicrobial Treatment ◽  
Knitted Fabrics ◽  
Textile Products

Abstract Antimicrobial finishing is increasingly used in textile products to increase their functionality. Antimicrobial properties became extremely important during the COVID-19 situation. The main problems faced by antimicrobial finishing are nontoxicity and durability (wash-resistance) of antibacterial activity. Also, it is important to determine whether the antimicrobial finishing changes comfort properties, such as air permeability. This paper deals with the durability of antimicrobial treatment, that is, resistance to washing, and effect on the structural changes that may have influence on the comfort properties, such as permeability to air. Knits of various raw compositions were antimicrobial-treated with the new commercial antimicrobial product, Si Bactericidal (Smart Inovation, Portugal). After the antimicrobial treatment, knitted specimens were washed 50 times and changes in their structural parameters, air permeability, and antimicrobial activity were measured. It was found that the mentioned antimicrobial treatment gives very good antimicrobial activity to the treated fabric and is wash-resistant and long-lasting. Also, it does not change dimensions and permeability to air of the treated fabrics with some exceptions of cotton-based knitted structures.

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