26-11-2020 дата публикации
Номер: US20200369900A1
A method of forming a coating composition for application to a substrate utilizing a high efficiency transfer applicator. The method includes identifying at least one of an Ohnesorge number (Oh) for the coating composition, a Reynolds number (Re) for the coating composition, or a Deborah number (De) for the coating composition. The method includes obtaining at least one of a viscosity (η) of the coating composition, a surface tension (σ) of the coating composition, a density (ρ) of the coating composition, a relaxation time (λ) of the coating composition, a nozzle diameter (D) of the high efficiency transfer applicator, or an impact velocity (v) of the high efficiency transfer applicator. The method includes forming the coating composition having at least one of the viscosity (η), the surface tension (σ), or the density (ρ). The coating composition is configured to be applied to the substrate utilizing the high efficiency transfer applicator having at least one of the nozzle diameter (D) or the impact velocity (v). 1. A method of forming a coating composition for application to a substrate utilizing a high transfer efficiency applicator , wherein the method comprises:identifying at least one of an Ohnesorge number (Oh) for the coating composition, a Reynolds number (Re) for the coating composition, or a Deborah number (De) for the coating composition; [ {'br': None, 'i': Oh', 'D, '=(η/√{square root over (ρσ)})\u2003\u2003(I),'}, 'wherein at least one of the viscosity (η), the surface tension (σ), the density (ρ), or the nozzle diameter (D) is determined based upon the following equation I in view of the Ohnesorge number (Oh),'}, {'br': None, 'i': 'vD', 'Re=(ρ/η)\u2003\u2003(II), and'}, 'wherein at least one of the impact velocity (v), the density (ρ), the nozzle diameter D), or the viscosity (η) is determined based upon the following equation II in view of the Reynolds number (Re),'}, {'br': None, 'i': De', 'D, 'sup': '3', '=λ/√{square root over (ρ/σ)}\u2003\u2003( ...
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