A najeon is a type of shell that is thinly ground and attached to objects in various patterns. In Korea, the native word "jagae" is used. Najeon lacquerware refers to a craft made by attaching a najeon pattern to an object and lacquering the top, and Najeonjang refers to a person with such skills or functions.

It is assumed that the technique of najeon lacquerware was introduced in the Tang Dynasty of China. In Korea, a large amount of lacquerware was excavated from ancient tombs dating back to the Silla Period, and the lacquerware from the Baekje and Samhan periods were also excavated, suggesting that it was widely used as a common household container in the Three Kingdoms Period.

According to the production process, a wooden frame for crafts such as a dressing table and a statue of a teacher is made of white bones. Rub the surface of the white bone evenly with sandpaper, then apply the chill porridge to fill the gap in the white bone and attach the shell to the white bone. It is then completed through the process of polishing, lacquer and polishing. The method of making patterns is to make a geometric pattern by attaching a small-cut top like a thread to a white bone, and to make a chrysanthemum, turtle, etc. shape by grinding the shell with a saw and a geometric pattern. During the Goryeo Dynasty and the early Joseon Dynasty, most of the plants were peonies, chrysanthemums, and lotus flowers, while most of the designs were made in the mid-Joseon period, including hwajo, Ssanghak, grape, plum, and sagunja. Recently, interest in traditional crafts has been rising, and they have been gradually resuscitating them with daily crafts.

On August 10, 2004, Chung Myung-chae was recognized as the holder.

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