MODELING AND KINETIC STUDIES ON THE SPREADING PHENOMENON OF INK JET PRINTING OVER POLYESTER FABRIC

Authors : Zouhaier Romdhani, Ayda Baffoun, Mohamed Hamdaoui, Sadok Roudesli

Pages : 173-181

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Publication Date : 2017-06-30

Article Type : Research

Abstract :The present research deals with an experimental study of the liquid drop through polyester fabric in the spreading regime with no  splashing. First, the wetting phenomenon parameters are characterized by the digidrop 3S permitting us to measure correctly the contact  angle, the diameter, the height, the volume and the drop profile in contact with porous fabric during experiment time. Results exhibited  that the liquid drop impact shows the presence of three different phases. Then, a mathematical model is developed in order to interpret  the experimental data in terms of kinetic spreading, evaporation and diffusion phenomena on the porous materials. The theoretical  predictions agree well with the experimental data with high correlation coefficients. It is also proved that the kinetic wetting parameters  depend on the structure of the woven fabric (weft count), the drop size and the surface tension. This study represents an important  contribution for the understanding of the behavior of a liquid drop after its projection on the textile support and it could constitute a  prototype of the industry of ink jet printing.
Keywords : Wetting, spreading, Liquid drop, Mathematical model, Woven fabric, Statistical analysis