Trial spinning is described through analysis on the spinnability of trivoltine cocoon waste material, which can produce ultrafine spun silk yarn due to its excellent spinnability.

对三眠茧绢纺原料的特进行可纺，试纺情况。试纺结果表明，三眠茧绢纺原料有良好的可纺，并达到纺超高支绢丝的目的。