Response Surface Regression Models for Prediction of Ring Spun Yarn Properties

2015 ◽  
Vol 19 (4) ◽  
pp. 1-10
Author(s):  
Hanen Ghanmi ◽  
Adel Ghith ◽  
Tarek Benameur
Keyword(s):  
Mechanical Properties ◽  
Response Surface ◽  
Regression Models ◽  
High Volume ◽  
Statistical Software ◽  
Spun Yarn ◽  
Yarn Properties ◽  
Ring Spun Yarn ◽  
Spinning Process ◽  
Response Surface Regression

In this study, the response surface methodology is used to predict the mechanical properties of yarn, their unevenness and hairiness by using the high-volume instrument (HVI) properties of raw cotton and the parameters of the spinning process. Therefore, five different blends of cotton are processed and spun into ring yarns (Nm13, Nm19, Nm 21, Nm31 and Nm37). Each count is spun at five twist levels (450, 500, 650, 750 and 850 trs/m). The models that are developed by using response surface regression with many iterations on a Minitab16 statistical software predict very well the different yarn properties since the R2 values obtained are very important. In addition, these models show that metric number and twist have the highest effect on the four studied parameters

Simulation and analysis of the twist propagation process of polyester staple yarn on the fiber scale

2020 ◽  
pp. 004051752096334
Author(s):  
Jiang Wang ◽  
Yuze Zhang ◽  
Qian Ding ◽  
Nicholus Tayari Akankwasa ◽  
Qianqian Shi ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Model ◽  
Finite Element Software ◽  
Spun Yarn ◽  
Yarn Properties ◽  
Ring Spun Yarn ◽  
Spinning Process ◽  
Set Up ◽  
The Mathematical Model ◽  
Configuration Changes

The twisting process of the sliver is an important part of the yarn spinning process, but this process has not been fully characterized on the fiber scale. Herein, based on the assumption that fibers are randomly distributed in the sliver, we analyzed the simulation twisting process of the sliver model on the fiber scale. The mathematical model of the twisting process of the sliver is set up and the non-free-end twisting process is simulated using the finite element software ABAQUS®. The simulation process clearly shows the configuration changes of the sliver caused with the increase of the twist. We also divided the twisting process into 11 stages and obtained a three-dimensional model of staple yarn. Then, the relationship curve between the ring-spun yarn fineness and the number of fibers in the cross-section of the ring-spun yarn was established by spinning the yarns of different counts of 20, 25, 30, 35, 40, 45, 50, 55, 60 and 65 Ne, and the fineness of the simulated yarn was calculated. The accuracy of the simulated yarn was verified by comparing the weight of the simulated yarn and the ring-spun yarn. The model established can be used to predict yarn properties for different purposes and can also be further utilized to study other phenomena in ring-spinning technology.

scholarly journals Analysis of yarn properties in the superconducting magnetic bearing-based ring spinning process

2017 ◽  
Vol 88 (22) ◽  
pp. 2624-2638 ◽  
Author(s):  
Mahmud Hossain ◽  
Anwar Abdkader ◽  
Chokri Cherif
Keyword(s):  
Research Work ◽  
Comparative Investigation ◽  
Magnetic Bearing ◽  
Ring Spinning ◽  
Spun Yarn ◽  
Yarn Properties ◽  
Ring Spun Yarn ◽  
Spinning Process ◽  
Yarn Tenacity ◽  
Superconducting Magnetic Bearing

The fundamental research work about the superconducting magnetic bearing (SMB) twisting system provides huge potential to eliminate the most important limitation of productivity, that is, the friction in the ring traveler system of the existing ring spinning process. As a continuity of the research work, the functionality of the SMB spinning has been carried out with different angular spindle speeds, yarn counts, and materials in order to determine the influence of the SMB technology. The current paper presents a comparative investigation of the yarn properties, such as yarn tenacity, yarn elongation, yarn evenness, microscopic views, etc., between conventional and SMB ring spun yarn. The intensive analysis confirms that the SMB system enables one to produce satisfactory yarn quality similar to that of conventional ring spun yarn up to 15,000 rpm. The influence of conventional and SMB spinning processes on yarn properties has been further analyzed statistically using an analysis of variance.

scholarly journals Open-End Yarn Properties Prediction Using HVI Fibre Properties and Process Parameters

2017 ◽  
Vol 17 (1) ◽  
pp. 6-11 ◽  
Author(s):  
Hanen Ghanmi ◽  
Adel Ghith ◽  
Tarek Benameur
Keyword(s):  
Response Surface ◽  
Process Parameters ◽  
Processing Parameters ◽  
Raw Material ◽  
Spun Yarn ◽  
Yarn Properties ◽  
Spun Yarns ◽  
Yarn Count ◽  
Input Variables ◽  
Rotor Spun Yarn

AbstractThis article provides three models to predict rotor spun yarn characteristics which are breaking strength, breaking elongation and unevenness. These models used noncorrelated raw material characteristics and some processing parameters. For this purpose, five different cotton blends were processed into rotor spun yarns having different metric numbers (Nm10, Nm15, Nm18, Nm22, Nm30 and Nm37). Each count was spun at different twist levels. Response surface method was used to estimate yarn quality characteristics and to study variable effects on these characteristics. In this study, predicting models are given by the analysis of response surface after many iterations in which nonsignificant terms are excluded for more accuracy and precision. It was shown that yarn count, twist and sliver properties had considerable effects on the open-end rotor spun yarn properties. This study can help industrial application since it allows a quality management-prediction based on input variables such as fibre characteristics and process parameters.

Spinning Process and Mechanical Properties Analysis of PTT Filament Core Spun Yarn

2011 ◽  
Vol 239-242 ◽  
pp. 1207-1210
Author(s):  
Yuan Xue ◽  
En Long Yang
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Elastic Recovery ◽  
Staple Fiber ◽  
Ring Spinning ◽  
The Core ◽  
Outer Sheath ◽  
Spun Yarn ◽  
Two Component ◽  
Spinning Process

The two component filament/staple fiber core-spun yarn is spun on FA506 ring spinning frame with PTT filament as interlaced yarn and Tencel staple fiber as outer sheath. The spinning process and process parameters were analyzed. The morphology, mechanical property and wear-resisting property of two component core-spun yarn were tested. Results indicate that elastic recovery rate of core-spun is up to 90.6%; broken strength is up to 20 cN/tex after boiling water treatment. The core-spun yarn can be used as a new kind of knitting yarn for sweater.

Fiber Configuration of Air Jet Vortex Spinning Yarns

2013 ◽  
Vol 834-836 ◽  
pp. 1784-1788
Author(s):  
Ya Hong Zhong ◽  
Jian Hui Ma ◽  
Ming Jie Xing
Keyword(s):  
Outer Layer ◽  
Optical Microscope ◽  
Air Jet ◽  
Spun Yarn ◽  
Ring Spun Yarn ◽  
Spinning Process ◽  
Twisted Fiber

In this paper, the spinning process of air jet vortex spinning was described. The structure of air jet vortex spun yarn was studied by means of blending tracer fibers in spinning. Then the yarns were viewed with the optical microscope and SEM etc. The result shows that air jet vortex spun yarn comprises two parts. The outer layer, composed of twisted fibers, presents helical form. And the inner layer contains about 30% fibers untwisted or slackly twisted. The distance between twisted fiber groups is very short, so the borderline isnt obvious. There is a certain angle between core fibers in parallel and the axes of the yarn. The coefficient of fiber migration of the yarn was calculated, and it is lower than that of ring spun yarn and compact spun yarn.

Comparative study of ring yarn properties spun with static and rotary grooved contact surfaces

2017 ◽  
Vol 88 (16) ◽  
pp. 1812-1823 ◽  
Author(s):  
Hao Yu ◽  
Keshuai Liu ◽  
Chen Jun ◽  
Chiyu Fu ◽  
Zhigang Xia ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Contact Surface ◽  
Surface Friction ◽  
Significant Deterioration ◽  
Spun Yarn ◽  
Yarn Properties ◽  
Static Contact ◽  
Ring Spun Yarn ◽  
Grooved Surface ◽  
Yarn Hairiness

Spinning with a static contact surface is an energy-saving method to reduce spun yarn hairiness; however, the spun yarn irregularity and tensile properties are deteriorated. To prohibit the deteriorations, this paper introduces a rotary grooved surface contacting ring spinning strand within the yarn formation zone. In theory, the modeling analysis of spinning with contact surface is conducted to reveal the prohibition mechanism of yarn irregularity and tensile property deteriorations for a rotary grooved surface. Theoretical analysis results indicated that groove-yarn surface friction could wrap the concentrated hairs onto yarn stem while block inflowing twists to the spinning strangle zone; the rotary grooved surface could reduce twist blockage and hair wrapping concentrations to better the situation after a comparison with the static grooved surface. Then, two kinds of specially-designed grooved cylinders (one was rotatable while the other was static) were used to validate the theoretical analysis. The experimental results showed that, unlike the static grooved cylinder which significantly deteriorated the original yarn unevenness CVm, the rotary achieved significant hairiness reduction without any significant deterioration of other yarn properties. This might be due to the decreased friction and twist propagation for the rotary grooved cylinder contacting the spinning strand. In this case, spinning with a rotary grooved cylinder was preferably applied in the first step to control ring spun yarn hairiness.

scholarly journals Experimental Identification of Optimized Process Parameters for FSW of AZ91C Mg Alloy Using Quadratic Regression Models

2020 ◽  
Vol 66 (12) ◽  
pp. 736-751
Author(s):  
Satheesh C ◽  
Sevvel P ◽  
Senthil Kumar R
Keyword(s):  
Mechanical Properties ◽  
Response Surface ◽  
Process Parameters ◽  
Regression Models ◽  
Mg Alloy ◽  
Regression Equations ◽  
Quadratic Regression ◽  
Input Process ◽  
Friction Stir ◽  
Pin Geometry

This experimental work aims to devise and establish quadratic regression equations, including various input criteria of a friction stir welding (FSW) technique to predict and determine the responses during the fabrication of AZ91C Mg alloy joints. The input process parameters taken into consideration include the traversing speed of the tool, the speed of rotation of the tool, its pin profile (geometry) and the axial force. A five-level, 4 four-factor composite design (of central nature) was applied, and response surface methodology (RSM) was used to formulate quadratic regression models, to develop 3D response surface charts, and to anticipate the responses for various mechanical properties. The generated quadratic mathematical model was tested and validated using the technique of analysis of variance. Validation experimental trial results outlined in the form of scatter diagrams revealed precedented coincidence with that of the generated models. The AZ91C Mg alloy joints obtained using the tool having taper cylindrical pin geometry employed at 1045 rpm, 1.5 mm/s traversing speed, under the exertion of an axial load of 4.87 kN was found to exhibit improved mechanical properties.

Sign in / Sign up

Export Citation Format

Share Document