The Usui Silk Mill Agricultural Cooperative Association started in 1935 as a twisting and refining plant (which twists raw silk to remove protein and turn it into silk thread). In 1959, it became a silk mill./ (c) FASHION HEADLINE
The boiled cocoons are first lightly rubbed with a broom in hot water to extract the threads./ (c) FASHION HEADLINE
The yellow cocoons are from a variety of silkworm called Gunma Golden, which produces shiny yellow raw silk./ (c) FASHION HEADLINE
The cocoons are transported to the reeling machine, where several strands are twisted together to form the desired thickness of thread and then wound up. Experienced workers keep an eye on the reeling process./ (c) FASHION HEADLINE
A single cocoon can produce threads 1,000 to 1,500 meters long./ (c) FASHION HEADLINE
The thread wound onto the small frame is then wound onto the large frame using a winding machine, and then made into a single bundle called a skein./ (c) FASHION HEADLINE
20 skeins are called a "katsu" and shipped in sets of 6./ (c) FASHION HEADLINE
Raw silk being shipped/ (c) FASHION HEADLINE