Nanopigments for the Coloration of Textiles
Series of silica based nanoparticulate pigments that have special color effects and provide a potential for the application in textile coloration were developed. The coloration of silica nanoparticles can be realized by the incorporation of dyes via covalent binding or physical adsorption. In most cases chemical binding is preferred, because it can increase the amount of entrapped dye molecules, increase the photostability, and reduce the leaching of dyes. Another class of colored silica particles includes silica coated gold nanoparticles. Utilizing the intense surface plasma resonance of the noble metal nanoparticles, different colors are achieved by controlling the number of gold nanoparticles (1, 2, 3 or several) in each silica particle. Fluorescent dyes were also incorporated in the silica shell of core-shell particles (SiO2 containing gold nanoparticles). By controlling the distance between dye molecules and gold nanoparticles, the fluorescence can be enhanced or quenched.
nanopigments silica gold nanoparticles coloration textiles
WANG Hailin SCHAEFER Karola MOELLER Martin
DWI an der RWTH Aachen e.V.and Institute of Technical and Macromolecular Chemistry,RWTH Aachen University, 52056 Aachen, Germany
国际会议
The 12th International Wool Research Conference(第十二届国际羊毛会议12th IWRC)
上海
英文
194-197
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）