靑布 Jjongmul Deulin Be (쪽물 들인 베)

Original, read line by line 東醫寶鑑 · Tangaek — Decoctions vol. 2

1. 性寒, 味醎, 無毒.

   Its nature is cold, its taste salty, and it is non-toxic.

   HomiclubCheongpo is hemp cloth dyed blue with jok, the dyer's knotweed. It is neither plant nor mineral but a fabric, and it earned an entry of its own, following the jok entries before it, on the grounds that the plant's pigment is bound into the weave.

2. 主解諸物毒, 天行熱毒, 小兒丹毒. 幷水漬, 取汁飮.

   It chiefly resolves the toxins of various things, epidemic heat toxin, and erysipelas in children. In each case, soak it in water and drink the liquid.

3. 燒作黑灰, 付惡瘡及灸瘡久不差. 入水不爛.

   Burn it to black ash and apply it to malign sores and to moxibustion sores that have long failed to close. Put in water, it does not disintegrate.

4. 燒熏虎狼咬瘡, 出水毒. 此藍染靑布也. 《本草》

   Burn it and smoke a wound from a tiger's or wolf's bite, and the watery toxin comes out. This is hemp cloth dyed blue with jok. 《Boncho (本草)》

   HomiclubBecause the text states plainly at the end what this is, there is no room for confusion. Jok-dyed cloth holds its color well and was long kept in use, and the blue of today's denim comes from the same indigo family of dyes.