[섬유] Removing Pectin and Lignin During Chemical Processing of Hemp for Textile Applications 출판일 : 2003.08.01 저자 : H.M. Wang, R. Postle, R.W. Kessler, W. Kessler, 서지사항 : Textile Research Journal, Volume 73, No 8(2003), 664-669페이지 등록일 : 2012.05.08 I 조회수 : 143 작성자 : admin |
Pectin and lignin are both very important noncellulosic substances occurring in hemp fibers.
The main task in preparing hemp fibers for textile applications is to remove these
noncellulosic substances without damage to the fiber cellulose. Pectin and lignin in hemp
before and after chemical processing are characterized by infrared spectroscopy. The
influence of chemical processes, fiber regions, and alkaline boiling parameters on lignin
and pectin removal are investigated in this paper. The results indicate that the alkaline
boiling process is effective for removing pectin and lignin. There is no residual pectin in the
fibers after the alkaline treatment, but there is a residual level of lignin. The concentration
levels of both sodium hydroxide and sodium sulphite have significant effects on lignin
removal, and there are variations in lignin properties and accessibility from the lower to the
upper regions of the hemp stem.
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