Experimental data showed that the aqueous silica sol had excellent fixing and darkening effects on Direct Black GF on cotton.
实验结果显示，硅的水溶胶对直接黑gf有着明显的固色作用和增深作用。
2
The accumulation of inert deposits can be effectively decreased by such measures as removing silica, decreasing Cl content in black liquor and decreasing dosage of lime.
通过过程除硅、有效降低黑液中的氯含量、降低过灰量等措施可有效降低生产过程中的惰性积累。
3
Use the carbon black with low rolling resistance and the silica.