ナイロン6繊維に対する染料拡散の光学顕微鏡的考察
1968 年 24 巻 10 号 p. 481-485
詳細
1968 年 24 巻 10 号 p. 481-485
The apparent diffusion coefficients D of three acid dyes (Acid Orange 7, Acid Blue 45, Acid Red 99) and one direct dye (Direct Blue 71) in Nylon 6 fiber were determined by the microscopic measurement of the distance of advancing front of dye from fiber surface (x).
The following results were obtained:
1. The method applied here was simple in process, but it needs a preliminary experiment before determining D because the method has narrow applicable range.
2. D from this method agreed with that of Hill' s equation, though K is variable with the kind of dyes.
3. It is supposed that the greater the molecular weight andthe nnmber of sulphonic acid group in dyes the larger K becomes.
