Surface dyeing method was used to dye paper with the dye extracted from Begonia fimbristipula hance. The dyeing conditions were found out, and hence good dyeing effectis obtained.

 
  • 采用表面染色方法,將從紫背天葵中提取的天然色素對紙進(jìn)行染色,確定了天然紫背天葵色素在紙上著(zhù)色的合適條件,得到良好的染色效果。
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