As textile traditionally made in the country, mosi (fine ramie) is made of the outer skin of ramie plant stalks. A record made during the reign of King Gyeongmun (r. 861-875) of Unified Silla makes us assume that it was sold to neighboring countries. Ramie plant is a perennial plant. The stalks close to the root are harvested when they turn yellowish brown and the leaves at the bottom are withered. They are harvested three times a year, i.e., between May and early June, between early August and late August, and between early October and late October. Those harvested between early August and late August are the best in terms of quality.

Fine ramie produced in Hansan is far better than that produced in other areas in terms of quality and exquisiteness. Thus, fine ramie of Hansan has been regarded as synonymous with fine ramie in this country. Fine ramie is produced as follows: first of all, the outer skin is peeled from the harvested stalks; the peeled off skin is soaked in water for about a day and dried; then it is soaked again in water; strands of split ramie pieces are made into threads, and this process of making threads decides the thickness uniformity of threads. Products of Hansan are known for exquisiteness and thickness uniformity. The thickness of threads decides how many strands are to be put into a given space. The threads are starched, and then ramie is woven with a weaving machine. White ramie fabric is made through the process of bleaching based on the repeated process of soaking ramie fabric and then drying it in the sun.

Ramie fabric is usually divided into 7 sae through 15 sae. One sae refers to 80 warp threads woven into a 30cm wide cloth. A cloth with 10 sae or more is called Semosi (finely woven ramie). Ramie cloth is easily broken in a space with insufficient humidity. Thus, ramie weavers should work in unventilated space even in summer. They cannot work on a windy or a rainy day. Nowadays, however, white ramie fabric is made by means of chlorine bleaching. The relevant industry is on the decline with the development of modern textile technology.

Fine Ramie Weaving of Hansan has been designated as important intangible cultural heritage to maintain the production skills considering its historical value as material for traditional summer clothes, symbolizing the country’s esthetic quality.

The ramie fabric, which has been used for a long time, is known as jerky and jerky, and the peeling of ramie grass stems is made from the material. Based on the records sent to the Tang Dynasty of China during the reign of King Gyeongmun of the Unified Silla Dynasty (r. 861-875), it was also used as a trade item with foreign countries.

Hansan Semosi is a ramie made by Hansan, which has long been called the epitome of ramie, due to its excellent quality, delicacy and elegance. The production process is divided into nine courses: growing and harvesting, making fete, making ramie cakes, making ramie cakes, making ramie goods, ramie flying, ramie weaving, and ramie bleaching. First of all, grow it and harvest it. Tamoxi is a process of peeling and making an infinitesimal fiber, which is a process of splitting the Tamoshi. Mosi Samgi and Mosi Gut Making are the process of making thread by connecting broken Infi fiber, and ramie flying is determined by the thickness of the thread. After going through the grass-eating process of ramie magpie, use a loom to squeeze the ramie. Finally, ramie bleaching is the process of wetting it and drying it several times in the sun to turn it into a white jersey.

If the humidity was insufficient, it would be easy to break, so they had to squeeze it out of a hut that was not ventilated in the heat and could not work on windy or rainy days. Moreover, with the development of the textile industry, demand has decreased, and the local ramie weaving technology is gradually declining.

Hansan Semosi is a traditional summer cloth of high historical value that symbolizes the beauty of Korea. It was designated as an intangible cultural asset to protect and transfer its production technology. Na Sang-deok, a functional holder who lives in Seocheon-gun, Chungcheongnam-do, continues his career.