Supercritical Fluid Spray Dyeing: A New Method of Dyeing and Simulations of its Flow Field

Abstract:

The supercritical fluid flow jetted out from a nozzle was divided into two stages, free jetting and passing through the porous media, in a supercritical spray dyeing process. According to the nature of the flow, the free jetting model and passing through porous media model were established separately. Based on the established models, the characteristics of supercritical fluid flow field in the supercritical fluid spray dyeing process were investigated firstly in this paper. Distributions of the temperature and pressure and their influencing factors in the flow field, which are the determinants of the spray dyeing process, were obtained and analyzed. Besides, the mass flow and covering diameter sprayed by supercritical fluid were studied. The simulating analysis may provide a theoretical basis and guidance for the actual process of supercritical fluid spray dyeing.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 2038-2043
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.2038
• Online since: November 2011
• Authors: Ming Lu Wang, Wei Qiang Wang, Yan Peng Qu, Yan Liu, Zhi Yong Xu
• Keywords: Mathematical Models, Porous Medium, Spray Dyeing, Supercritical Fuid

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