Mordanting
A mordant is usually a metal ion used to set dyes on
fabrics by forming an insoluble compound with the dye. It
was thought that the presence of amidoxime in the modified
acrylic fibers would increase the reactivity of the fiber
toward metal ion by virtue of its metal forming complex,
which would help further dye-fiber bond fixation as depicted
in Scheme 2.
Alum and ferrous sulfate mordants were used in 3 g/l for
pre-mordanting acrylic fiber samples to produce differenthues of color. Tables 1 and 2 show L*, a*, and b* values of
acrylic samples (blank, A, and B) dyed with madder and
curcumin, respectively.
It is clear that different mordants not only cause difference
in hue and changes in K/S values but also change color
characteristics. Also, it can be seen that mordants which
MordantingA mordant is usually a metal ion used to set dyes onfabrics by forming an insoluble compound with the dye. Itwas thought that the presence of amidoxime in the modifiedacrylic fibers would increase the reactivity of the fibertoward metal ion by virtue of its metal forming complex,which would help further dye-fiber bond fixation as depictedin Scheme 2.Alum and ferrous sulfate mordants were used in 3 g/l forpre-mordanting acrylic fiber samples to produce differenthues of color. Tables 1 and 2 show L*, a*, and b* values ofacrylic samples (blank, A, and B) dyed with madder andcurcumin, respectively.It is clear that different mordants not only cause differencein hue and changes in K/S values but also change colorcharacteristics. Also, it can be seen that mordants which
การแปล กรุณารอสักครู่..
