scholarly journals Ifluence of Yarn Texturing Technological Parameters and Fabric Structure on Tensile Properties of the Polipropylene Fabric

1970 ◽  
Vol 17 (2) ◽  
pp. 174-179 ◽  
Author(s):  
Raimundas ABROMAVIČIUS ◽  
Ginta LAURECKIENĖ ◽  
Rimvydas MILAŠIUS
Keyword(s):  
Tensile Properties ◽  
Air Pressure ◽  
Woven Fabric ◽  
Breaking Force ◽  
Technological Parameters ◽  
Elongation At Break ◽  
Fabric Structure ◽  
Upholstered Furniture ◽  
Yarn Structure ◽  
The Difference

Tensile properties of the woven fabric are very important properties for upholstered furniture manufacturers. In this study the dependencies of tensile properties of the fabric on yarn air texturing parameters and fabric structure were investigated. It was found, that breaking force and elongation at break depends more on yarn structure, than on air pressure in the texturing jet. The difference of fabric elongation at break does not exceed 2 % and difference of fabric breaking force does not exceed 5 % when yarns of the same structure but produced with different air pressure in the texturing jet were used in weft. In the case when different structure yarn produced with same pressure in the texturing jet were used in weft, there were difference of breaking force and elongation at break up to 25 % stated. There were also investigated tendencies of tensile properties of fabric dependencies on fabric structure itself. It was stated that weave of the fabric influences elongation at break and breaking force of the fabric.http://dx.doi.org/10.5755/j01.ms.17.2.488

scholarly journals Analysis of Woven Fabric at the Place of the Sewn Seam

2018 ◽  
Vol 18 (3) ◽  
pp. 216-220 ◽  
Author(s):  
Beti Rogina-Car ◽  
Ivana Schwarz ◽  
Stana Kovačević
Keyword(s):  
Mechanical Properties ◽  
Material Properties ◽  
Raw Material ◽  
Woven Fabric ◽  
Breaking Force ◽  
Time Intervals ◽  
Elongation At Break ◽  
Test Conditions ◽  
Stretching Intensity

Abstract Key importance and the role of sewn seam in the woven fabric are presented. Fabric properties in the places joined with the sewn seam on which garment durability, applicability, appearance and quality depend are highlighted. Seam location is usually the weakest spot on the garment, especially when the great loads are present at these places. Mechanical properties of the sewn fabrics were investigated in different test conditions. The influence of the load on the sewn seam is analyzed in time intervals. Sample with seam have approximately 70% lower breaking properties (breaking force and elongation at break) than the sample without seam. By preloading the seam fabrics with 30%, 50% and 70% of elongation at break, for a 3-h period, the effect on mechanical properties were tested and the differences in pre-stretching intensity were observed. By conducting such test, it is expected that the fabric experience further degradation and that breaking properties further reduce, but the exact opposite occurred (breaking properties, by increasing the preload, increase even more), because of various material properties (structural fabric properties, raw material characteristics, seam characteristics).

scholarly journals Analysis of Mechanical Properties of Fabrics of Different Raw Material

1970 ◽  
Vol 17 (2) ◽  
pp. 168-173 ◽  
Author(s):  
Aušra ADOMAITIENĖ ◽  
Eglė KUMPIKAITĖ
Keyword(s):  
Mechanical Properties ◽  
Friction Coefficient ◽  
Structure Factor ◽  
Static Friction ◽  
Raw Material ◽  
Breaking Force ◽  
Material Density ◽  
Elongation At Break ◽  
Static Friction Coefficient ◽  
Fabric Structure

The study analyzes dependence of mechanical properties (breaking force, elongation at break, static friction force and static friction coefficient) on integrated fabric structure factor j and raw material density r, among the fabrics of different raw material (cotton, wool, polypropylene, polyester and polyacrylnitrile) and woven in different conditions. The received results demonstrate that sometimes strong dependences exist (wool, polypropylene and polyacrylnitrile), whereas in some cases (cotton and polyester) there is no correlation. It was also discovered that the breaking force and elongation at break in the direction of weft increase, when fabric structure becomes more rigid. In the meantime variations of the curves in the direction of warp are insignificant. Regarding static friction force and static friction coefficient (found in two cases, when fabrics were rubbing against leather and materials), it was discovered that consistency of the curves is irregular, i. e. they either increase or decrease, when integrated fabric structure factor j growth. It was also identified that some dependences are not strong and relationship between explored and analyzed factors does not exist. Variation of all these mechanical properties with respect to material density r enables to conclude that increase of material density r results in poor dependences or they are whatsoever non-existent.http://dx.doi.org/10.5755/j01.ms.17.2.487

scholarly journals Influencing factors analysis of tensile properties of wool yarns with different proportions of polyamide blend

2018 ◽  
Vol 69 (04) ◽  
pp. 277-280
Author(s):  
IOAN PAVEL OANA ◽  
OANA DORINA ◽  
TRIPA SIMONA
Keyword(s):  
Tensile Strength ◽  
Comparative Analysis ◽  
Tensile Properties ◽  
Influencing Factors ◽  
Breaking Force ◽  
Elongation At Break ◽  
Factors Analysis ◽  
Strength Tests ◽  
Mechanical Breaking ◽  
Breaking Work

This paper presents a comparative analysis of three batches of wool yarns with different fineness, twists and compositions and the way in which these characteristics influence the tensile properties of the yarns. We performed the tensile strength tests and the values for the following tensile characteristics were determined: breaking force, elongation at break, tenacity and the mechanical breaking work and were made the diagrams. Stroke for strength and elongation at break – the diagrams give us an idea on the distribution of weak sections along the yarn tested. In order to make this analysis we used the machine USTER® TENSOJET 4. The main conclusions drawn from this analysis are following: the breaking force of the yarns is mainly determined by the value of length density and only after that by the percentage of polyamide and the twisting value, elongation at break is primarily influenced by the percentage of polyamide from the yarns composition and only then by the yarns twisting degree, the toughest yarns are the ones with the smallest fineness, the mechanical work created when stretching the yarns depends mainly by the percentage of polyamide from the yarns composition, by the yarns fineness and only then by their twisting.

Investigation of the Influence of Technology Parameters and Thread Type on Embroidered Textile Element Quality

2020 ◽  
Vol 20 (4) ◽  
pp. 517-523
Author(s):  
Virginija Daukantienė ◽  
Karolina Mikelionytė
Keyword(s):  
Mechanical Testing ◽  
Functional Properties ◽  
Digital Image ◽  
Geometric Parameters ◽  
Breaking Force ◽  
Technological Parameters ◽  
Original Design ◽  
Initial Tension ◽  
Elongation At Break ◽  
Stitch Density

AbstractEmbroidery can be applied to improve esthetic or functional properties of products. However, the expected appearance of the original design may be discarded by unsuitable selected technological parameters of embroidery machine. Thus, the influence of the technological parameters and embroidery thread types on the embroidery geometric parameters and on tension characteristics of embroidery has been investigated in this research.The research results revealed that the changes in geometry parameters of the designed digital image compared with the ones of actual embroidery samples are dependent on embroidery filling type, stitch density, and thread type. Mechanical testing of the embroidery elements has proved that embroidering influences the decrease in material breaking force and elongation at break compared with their initial tension characteristics.

scholarly journals Interrelation Between Tensile Properties of Yarns and Woven Fabrics with These Yarns

2019 ◽  
Vol 19 (4) ◽  
pp. 387-393
Author(s):  
Eglė Kumpikaitė ◽  
Indrė Tautkutė-Stankuvienė ◽  
Dovilė Redeckienė
Keyword(s):  
Tensile Properties ◽  
Raw Materials ◽  
Tensile Tests ◽  
Woven Fabrics ◽  
Breaking Force ◽  
Elongation At Break ◽  
Natural Silk ◽  
Cotton Yarns ◽  
Almost All

Abstract The main parameters of tensile tests for fabrics and yarns are the breaking force and the elongation at break. The aim of this investigation was to find the relation between the tensile properties of yarns and woven fabrics for different natural raw materials. Manmade bamboo, natural single flax, blended plied flax and natural silk yarns, plied combed cotton yarns, blended plied cotton, and polyester yarns were used for the research. The warp of almost all fabrics, except of one fabric, was from flax. This fabric was woven using blended flax and silk yarns in the warp. Weft yarns were more various – yarns of one kind were used in the weft for certain fabrics; yarns of two kinds were used in 1:1 repeats in other fabrics. It was established that the breaking force for both woven fabrics and yarns increases when the elongation at break increases. The relationships between the tensile parameters of yarns and woven fabrics were established. The results showed weak dependence between the tensile parameters of yarns and fabrics because the coefficients of determination of the dependences are small.

Analysis of twist level and take-up speed impact on the tensile properties of PVA/PA6 hybrid nanofiber yarns

e-Polymers ◽  
2016 ◽  
Vol 16 (2) ◽  
pp. 125-135 ◽  
Author(s):  
Aref Fakhrali ◽  
Seyed Vahid Ebadi ◽  
Ali Akbar Gharehaghaji ◽  
Masoud Latifi ◽  
Abdolrasool Moghassem
Keyword(s):  
Tensile Properties ◽  
Drug Loading ◽  
Medical Applications ◽  
Absorbable Suture ◽  
Sem Images ◽  
Elongation At Break ◽  
Twist Level ◽  
Yarn Structure ◽  
Hybrid Nanofiber ◽  
Bio Compatibility

AbstractIn this work, polyvinyl alcohol/nylon6 hybrid nanofiber yarns were produced to achieve good properties of each component. The influence of the twist level in the range of 3000–14,666 tpm and take-up speed in the range of 2.5–8.5 cm/min of yarns on the tensile properties was investigated. The highest strength and elongation at break of yarns were achieved in twist level and take-up speed of about 11,000 tpm (8.13±0.72 cN/tex and 72.44±7.64%) and 6.5 cm/min (6.20±0.57 cN/tex and 70.23±7.95%), respectively. Excessive values over these amounts caused a drastic decrement in tensile properties. This could be due to the loss nanofiber arrangement in the yarn structure that was confirmed by the study of orientation of the nanofibers in the yarns by the SEM images. These yarns have the potential to be used in medical applications such as a non-absorbable suture due to the drug loading ability and bio-compatibility properties of PVA nanofibers.

scholarly journals Fabrication and Uniaxial Tensile Properties of Soldered Porous Copper Fiber-Sintered Sheets

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Ruiliang Liu ◽  
Wei Zhou ◽  
Shuangli Li ◽  
Dongsheng Xu
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Solid Phase ◽  
Uniaxial Tensile ◽  
Elongation At Break ◽  
Porous Copper ◽  
Fluxless Soldering ◽  
The Difference ◽  
Free Solder ◽  
Sintering Method

Porous copper fiber-sintered sheets (PCFSSs) with different porosities were fabricated through the solid-phase sintering method using cutting copper fibers. PCFSSs with the same porosity and different porosities were then joined via a fluxless soldering method. By analyzing the uniaxial tensile property of the PCFSSs, the formation mechanism of the soldered PCFSSs was investigated. The difference in the tensile properties between the soldered and original PCFSSs was examined. Experimental results indicated that, for the PCFSSs with homogeneous porosity, reducing the porosity increased the tensile strength and elongation at break significantly. The fluxless soldering method with the lead-free solder resulted in excellent joining of the PCFSSs with the same porosity and different porosities. Moreover, the final tensile strength of the soldered PCFSSs with the same porosity was nearly equal to that of their parent PCFSSs. The tensile strength of the soldered PCFSSs with different porosities depended on the higher-porosity section. After soldering the PCFSSs, Young’s modulus increased and the elongation at break reduced.

Physical Properties of Silk Fabric Containing Chitosan and Silver

2012 ◽  
Vol 476-478 ◽  
pp. 1341-1344 ◽  
Author(s):  
Xiao Peng ◽  
Jun Li Chen ◽  
Qiu Bao Zhou ◽  
Xue Qin Wang ◽  
Lei Zhu
Keyword(s):  
Fourier Transform ◽  
Tensile Properties ◽  
Silk Fabric ◽  
Breaking Force ◽  
X Ray Diffraction ◽  
Dual Effect ◽  
Elongation At Break ◽  
X Ray ◽  
Antibacterial Ability ◽  
Ability Tests

As “Queen of Fibers”, silk is very popular due to its favorable properties. However, unfavorable antibacterial ability has limited the application of silk. In this paper, therefore, the antibacterial treatments containing both silver and chitosan for silk fabric were conducted. X-ray diffraction (XRD), Fourier transform infrared (FTIR), tensile properties and antibacterial ability tests were carried out to characterize the silk fabric containing chitosan and silver. The results showed that chitosan and silver treatment did not destroy the crystalline structure and molecule structure of silk fabric, however, greatly changed the tensile properties and antibacterial ability, i.e. after treatment, the breaking force decreased while elongation at break increased. Especially, the antibacterial ability of silk was greatly improved due to dual effect of chitosan and silver.

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