The high quality yarns _ the first condition for quality textiles

6th ModTech International Conference - Modern Technologies in Industrial Engineering

Barbu, I.^1 ; Szabo, M.^1 ; Fogorasi, M.S.^1

Department of Automation, Industrial Engineering Textile and Transportation, Aurel Vlaicu University of Arad, Revoluiei Avenue 77, Arad, Romania^1

关键词: Independent parameters;    Independent variables;    Mechanical characteristics;    Optimization method;    Physico mechanical characteristics;    Spinning technologies;    Technological parameters;    Technological process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/400/6/062004/pdf
DOI  :  10.1088/1757-899X/400/6/062004

来源: IOP

【 摘 要 】

This paper is part of a more extensive study that aims at optimizing the technologies of manufacturing 100% cotton yarns and cotton blended with chemical fibers, polyester, both using classic spinning technologies, with rings, and unconventional technologies, open-end with rotor. The problems, difficulties that occur always in the processing of cotton fibers are those related to the unevenness of the yarns made. This unevenness or non-uniformity is natural considering the non-uniformity of the physico - mechanical characteristics of cotton fibers. These are natural fibers and physico-mechanical characteristics are dependent on a number of factors such as the number of sunny days, average temperature, the amount of precipitation, etc. Starting from the characteristics of the fibers processed, it is necessary to find suitable technological parameters in order to use, to exploit the characteristics of the processed fiber. As the optimization method, it has been chosen to use central rotable programs with two independent variables. In the study were chosen the most important parameters for each machinery in the technological process, and as the dependent variable was chosen the unevenness of the breaking load of the made yarns. The technological flow used includes the blow room line, cards, drawing frames, roving frames, spinning machines and unconventional spinning machines. For this paper we will approach the optimization of the technological parameters of blow room aggregate. After the experiments we determined the characteristics of the yarns, we established the regression equation of the mathematical model and set the values for the independent variables for to the lowest value for the unevenness of the breaking load. At the end of the study we made the yarns with the values set for the independent parameters and we found that the yarns made are of adequate quality, correlated with the physical-mechanical characteristics of the processed fibers.