scholarly journals ASSESSMENT OF THE FORMAL STABILITY OF KNITTED FABRICS ON THE CYLINDRICAL BEND OF THE PLATES

2020 ◽  
pp. 158-162
Keyword(s):  
Rectangular Plate ◽  
Dimensional Stability ◽  
Cylindrical Surface ◽  
Theoretical Studies ◽  
Knitted Fabrics ◽  
Formal Stability ◽  
Form Stability

The article analyzes the results of theoretical studies of the dimensional stability of knitted fabrics with different fibrous composition. The coefficient of form stability Кф according to the deformability data of knitted fabrics, modeled in the form of bending of a rectangular plate along a cylindrical surface, is proposed.

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.

Improving Dimensional Stability of Cotton Knits through Resin Finishing

2014 ◽  
Vol 9 (3) ◽  
pp. 155892501400900 ◽  
Author(s):  
Faiza Safdar ◽  
Tanveer Hussain ◽  
Ahsan Nazir ◽  
Kashif Iqbal
Keyword(s):  
Dimensional Stability ◽  
Knitted Fabrics ◽  
Bursting Strength ◽  
Different Types

The aim of this study was to compare the effectiveness of three different types of resin finishes for improving the dimensional stability of 100% cotton honeycombed pique knitted fabrics. After application of each resin at five different concentrations, it was found that the fabric shrinkage could be effectively controlled by using a suitable type and concentration of the resin. However, the cellulose crosslinking by the resin resulted in some loss in the fabric bursting strength. In a second set of experiments, three different types of softeners were applied, at three different concentrations, in combination with the optimized type and concentration of the resin. It was found that the loss in fabric bursting strength due to cellulose crosslinking by the resin could be minimised with a suitable type and concentration of softener without any deterioration in the fabric pilling properties.

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.

scholarly journals Effects of the Laundering Process on Dimensional and Physical Properties of Plain and Lacoste Fabrics Made from Modal/combed Cotton Blended Yarns

2017 ◽  
Vol 25 (0) ◽  
pp. 75-81 ◽  
Author(s):  
Ebru Çoruh
Keyword(s):  
Physical Properties ◽  
Dimensional Stability ◽  
Unit Area ◽  
Dimensional Change ◽  
Air Permeability ◽  
Knitted Fabrics ◽  
Bursting Strength ◽  
Expert Analysis ◽  
Fabric Weight ◽  
Loose Medium

In this study, dimensional and some physical properties of plain (single jersey) and lacoste knitted fabrics made from 50/50 modal/combed cotton blended yarns (tex 21 and 15) were investigated. Twelve weft knitted fabrics were produced with two different structures and three different densities (loose, medium, tight). For physical properties, the fabric weight per unit area, fabric thickness, bursting strength, air permeability and dimensional stability were evaluated. We focused on the dimensional stability properties of outwear knitted fabrics. The total dimensional change of the fabric’s dimensions and structural properties were measured and evaluated after ten washing cycles and then flat dried. The results show that the weight per unit area, thickness, air permeability and dimensional stability values are independent of the yarn linear density, fabric structure and fabric density. Statistically evaluated using Design Expert Analysis of variance (ANOVA) software 6.06., test results show that dimensional stability is mostly effective for the bursting strength, air permeability and fabric weight per unit area.

Impact of wash types and stitching parameters on shrinkage of knitwear made from pique fabric

2019 ◽  
Vol 31 (2) ◽  
pp. 232-242
Author(s):  
Muhammad Babar Ramzan ◽  
Abher Rasheed ◽  
Zulfiqar Ali ◽  
Sheraz Ahmad ◽  
Muhammad Salman Naeem ◽  
...  
Keyword(s):  
Dimensional Stability ◽  
Design Methodology ◽  
Manufacturing Industry ◽  
Critical Problem ◽  
Body Width ◽  
Knitted Fabrics ◽  
Content Type ◽  
Factors Affecting ◽  
Stitch Density ◽  
The Impact

Purpose In the field of knitwear, dimensional stability is assumed as a critical problem that affects the quality and salability of a product. Although much work has been done in this area with a focus on the factors affecting fabric shrinkage, however, there is a lack of work on knitwears with respect to their dimensional stability. The purpose of this paper is to investigate the impact of stitching parameters and wash types on the dimensional properties of knitwear. Design/methodology/approach The crew-neck t-shirts were prepared by using pique knitted fabrics. Different sewing and finishing parameters were used that include stitch density, stitch type, stitching thread and wash type. The critical measurements of the selected garment are taken as output variables which are body width, sleeve length, body length and across shoulder. After laundering process, shrinkage percentage was calculated by using before-wash and after-wash measurements. Findings This study shows that the stitching parameters affect significantly on knitwear’s shrinkage. Thus, when patterns are being developed for the cutting of fabric, expected shrinkage, known as residual shrinkage, must be considered to avoid unexpected changes in garment shape. Originality/value This research will be useful for knitwear manufacturing industry.

Effects of Laundering on the Surface Properties and Dimensional Stability of Plain Knitted Fabrics

2000 ◽  
Vol 70 (1) ◽  
pp. 28-35 ◽  
Author(s):  
Leticia Quaynor ◽  
Masaoki Takahashi ◽  
Masaru Nakajima
Keyword(s):  
Surface Properties ◽  
Dimensional Stability ◽  
Knitted Fabrics

scholarly journals Impact of Repeated Home Laundering on the Cyclic Deformation Performance of Elastane Knitted Sportswear Fabrics

2019 ◽  
Vol 27 (1(133)) ◽  
pp. 91-99
Author(s):  
Vildan Sülar ◽  
Eren Oner
Keyword(s):  
Dimensional Stability ◽  
Cyclic Deformation ◽  
Recovery Time ◽  
Unit Area ◽  
Residual Deformation ◽  
Dimensional Change ◽  
Test Method ◽  
Knitted Fabrics ◽  
Minimum Deformation ◽  
Time Periods

After washing cycles, textiles having minimum deformation, maximum dimensional stability and the same performance of an unused product are major expectations of customers. This study examined the effects of washing cycles on the cyclic deformation of elastane knitted fabrics in detail. 12 knitted fabrics with two different linear densities of viscose yarn and three different polyamide/elastane gimped yarn of two different tightness levels (normal and tight) were used in the experiments. M&S P15A test method were used to evaluate the cyclic deformation of unwashed and washed fabrics (0, 5, 15 and 25 cycles) for four different recovery time periods (0 min, 2 min, 30 min and 24 h). Dimensional change, tightness factor and mass per unit area values were also examined in order to investigate the residual deformation of the fabrics after each washing stages. Consequently, it is determined that the fabrics having 21 tex viscose ground yarn and 78dtex20f elastane gimped yarn with higher setting show less residual extension (%). 5 and 15 washing cycles and a 30 min. recovery time are found significant for all repeated washings.

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