Influence of fluorescent pigments on properties of alginate fiber spinning solution and its membrane

Dispersion stability of fluorescent pigment / alginate fiber spinning solution and color property of colored alginate fiber was studied. The results showed that SMA fluorescent pigment and alginate spinning solution had high temperature stability. Similar to alginate fiber spinning solution,fluorescent pigment / alginate spinning solution exhibited its viscosity decreased with the increase of shear rate.K / S value and fluorescence intensity of colored alginate membrane increased with the increase of fluorescent pigments content. When the fluorescent pigment content was higher than 4%, the fluorescence intensity of colored alginate membrane decreased, and the prepared colored alginate membrane showed excellent water resistance transference.