The continued rise in importance of synthetic fibres and loosening of the protectionist economy contributed to the decline of Japan's silk industry, and by 1975 it was no longer a net exporter of silk.
合成纖維的重要性不斷提高以及貿易保護主義政策的放寬，导致了日本絲綢行業的衰落，而且，到1975年為止，日本已经不再是絲綢的净出口国了。