Problem to be solved: to develop a method for producing a pure, long, nonwoven silk thread which does not contain impurities such as leaves or branches, and an apparatus for realizing the production method.Solution: the springing process by which the legs FL, ML, and RL of the beetles holding the nest are held in the line L, which is held by the width. Phi. Below the right and left opening width W2 of the beetle, and the leg portion can be locked, and continuously spun along the line, and the long silk thread from the line after the spitting process Production method of long beetle silk thread including recovery recovery.Diagram【課題】葉片や枝片等の夾雑物を含まない純粋で、かつ長尺のミノムシ絹糸を生産する方法、及びその生産方法を実現するための装置を開発することを課題とする。【解決手段】使用するミノムシの左右最大開脚幅W2未満の幅φで、かつ脚部を係止可能な線状路Lに、巣を保持した前記ミノムシの脚部FL,ML,RLを係止させて線状路に沿って連続して吐糸させる吐糸工程、及び吐糸工程後に線状路から長尺絹糸を回収する回収工程含む長尺ミノムシ絹糸の生産方法。【選択図】図5
