Abstract
Foaming parameters are the foundations of foam-sizing technology. The impacts of foaming parameters, including temperature, agitator speed, quality fraction of the foaming agent, size recipe and concentration, on foam properties are remarkable. Aiming at optimizing the foaming parameters, foam height, foaming ratio, foam half-life and foam viscosity were chosen for testing and analysis. The experimental results indicated that the comprehensive indexes of the foam achieved the optimal properties at 50℃ with the agitation speed of 1200 r/min and the foaming agent of 2.5%, the oxidized starch and polyacrylic acid ratio of 50:50 and the size concentration of 9%. Compared with the yarn properties with the traditional process, foam-sizing can achieve the same results.
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