| 摘要 |
PROBLEM TO BE SOLVED: To provide a three-dimensional flat cocoon product having less weight, excellent design, and high homogeneity all over a flat cocoon.SOLUTION: A method for producing a flat cocoon product includes the steps of expanding an expandable and contractable three-dimensional mold 1; forming a flat cocoon B by making a silkworm D worm on an outer surface of the three-dimensional mold 1 and yield silk fiber; and contracting the three-dimensional mold 1 after the formation of the flat cocoon B and pulling out the three-dimensional mold 1. |
