Current cocoon can only reel male and female composite silk which is difficult to mass-produced high-grade silk because male and female are mixed when drying cocoon, boiling cocoon and reeling cocoon.
现行蚕茧在烘茧、煮茧、缫丝时都是雌雄茧混合，只能缫制雌雄复合丝，很难批量生产出高品位生丝。
3
The paper describes the disadvantages of the test method of fibrousness and contraction rate in boiling water to nylon 66 original silk in the course of manufacturing cord fabric of immersed glue.