오존처리후 추출처리에 의한 섬유벽내의 탈리그닌 = Delignification on Cell Wall by Extraction Treatment after Ozonization

다국어 초록 (Multilingual Abstract)

In order to evaluate the delignification in cell wall by alkali extraction treatment after ozonization, the lignin distribution and delignification degree was determined by UV microscope.
The delignification area was differentiated depending on extractants such as water or 1% NaOH. The content of oxidized gushing out lignin in fiber was higher by 1% NaOH extraction than by water, therefore, the strength properties of pulp extracted with 1% NaOH was better.
When the extraction treatment was carried out at high temperature(70℃), the lignin was simultaneously gushed out in the surface of fiber and lumen, therefore the treatment at high temperature was preferred for the purpose of lignin gushing out from fiber.