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This paper introduces an analytical method for the analysis and design of a dry-jet wet spinning system. The 1-D mass conservation equation is used, and velocity distribution is assumed to derive a simple relationship among various spinning parameters. The effect of spinneret mass flow rate, solution density, spinneret structure including velocity and air-gap length, and drawing velocity on the dry-jet wet spinning was simulated using the proposed analytical model. Theoretical prediction of fiber diameter is obtained, which depends upon spinning conditions, solution properties, and spinneret structure. The theoretical results were verified by comparing experimental data with the numerical solution. It was found obviously that the theoretical prediction has comparable accuracy as that by numerical computation. The analytical model can be useful for preliminary design of a spinning process for fabrication of fibers with controllable diameter by adjusting parameters in spinning conditions. [ABSTRACT FROM AUTHOR]

Blown bubble-spinning is a one-step process for fabrication of nanofibrous yarns. A mathematical model is established to adjust spinning velocity. Due to high friction among nanofbers, the obtained yarns are extremely suitable for stab-proof fabrics. [ABSTRACT FROM AUTHOR]

Dyeing nanofibers is a frontier of both modern textile engineering and nanotechnology. This paper suggest a feasible method for dyeing nanofibers with a natural red (Roselle Calyx) by bubble electrospinning. Reactive dye (Red S3B) and acid dye (Red 2B) were also used in the experiment for comparison. The dyeing process was finished during the spinning process. [ABSTRACT FROM AUTHOR]

Copper/PA66 nanofibers are fabricated by the bubbfil spinning, and their thermal stability is studied by calcination treatment. It reveals that the addition of copper nanoparticles can greatly improve the thermal stability of nanofibers. [ABSTRACT FROM AUTHOR]

Bubbfil spinning is used to fabricate micro/nanofibers with hierarchical structure. The wall of a polymer film is attenuated unevenly by a blowing air. The burst of the bubble results in film fragments with different thickness, as a result, different sizes of fibers are obtained. [ABSTRACT FROM AUTHOR]

Bubbfil spinning is a generalized bubble electrospinning, including bubble spinning, blown-bubble spinning, and membrane spinning, for mass production of nanofiber. This paper shows small bubbles in liquid membrane are the best candidate for uniform nanofibers. [ABSTRACT FROM AUTHOR]