Factors Influencing Dye Colors

In order to anticipate the color of dye ink more accurately, WENZHOU Mernuo Red-10 as an example, who was dissolved in different polarity solvent by magnetic stirring and ultrasonic agitation, the influence for properties of solvent on color of dye was researched with the coating method through contrasting sample papers. The influence for pH values of the solution and adding water to Red-10 solution on color of dye were also researched. It's shown that with the increased polarity of the solution,the absorption wavelength of Red-10 reduced gradually,light shade effect was caused. For the same solvent,with the pH values of the solvent increased,the absorption wavelength of Red-10 reduced gradually,light shade effect was caused.And all the factors affect the L,a,b values of the Red-10 dye's samples.