Gat, also known as black ribs, was one of the official hats used by aristocrats during the Joseon Dynasty to reflect their status.
Ipnip was originally a practical tool for covering the sun, rain, and wind, but as the materials, forms, and production methods diversified, black ribs were made during the Joseon Dynasty through the initial phase of the Parangi.
The shape of a gat is composed of Daewoo (hat) and Yangtae (hat's rim), and the height and width of the gat were very popular in the times. The types of gat include mami-lip, low-morip, bamboo sarip, forrip, bamboo-lip, yin-yangrip, state and white lip.
The process of making a gat is largely divided into particle work, in which the yangtae, the gun hat, the yangtae and the gun hat are collected and matched. Yangtae is a round top of a gat that divides bamboo into thin pieces like hair and weaves them together on a round plate.
Yang Tae-jang, a master craftsman who made Yangtae during the early Joseon Dynasty, was made by two members of the Gyeongguk Daejeon Chamber of Commerce and Industry, and during the late Joseon Dynasty, he was not bound by the government office, but rather pursued private production in areas where horse guns and bamboo were produced.
The production process for the patterning is in order of bamboo screening and grooming, the duck process, the weaving of the pattern, and the arrangement of the pattern. Bamboo is a bamboo (sondae) produced in the southern part of the country, and it is stored by selecting the ones that are tough, light, and long and high in quality between joints, boiling the ashes are boiled and dried. The duck process is a process of making bamboo shoots as thin as silk. Depending on the purpose, it is placed in a brocade to adjust the scales to make a blade, shell, and pedestal.
After weaving the wings and the joe together, Yangtae puts the head (meaning 'Jeju dialect'), diagonally between the two, and puts the comb in a diagonal line, then finely trims it to complete the yangtae.
Yang Tae-jang Jang Jeong-soon learned from his childhood about the process of making Yangtae and Tanggun, techniques, and the selection and management of bamboo among the new days, which his mother Song Ok-su (Jeju Special Self-Governing Province Intangible Cultural Property No. 12) had been working as a family business. Afterward, he moved to Bangbae-dong, Seocho-gu, Seoul in 1986 and produced it by himself, but moved to Gwacheon in 1995 to continue his work.
Due to its excellent skills, high-quality work such as high-distribution and buttocks are produced with high-quality techniques.