title: Ultrasound-assisted adsorption of anionic nanoscale pigment on cationised cotton fabrics.
abstract: Application of pigments in textile coloring has many advantages such as less water and energy consumption, less effluent load and higher efficiency, so the pigments are perfect alternatives to dyes for eco-friendly coloring. In this work, a stable anionic nanoscale pigment suspension was prepared using a polymeric dispersant to color the cationised cotton with the exhaust method. Meanwhile, ultrasound was carried out during the adsorption to evaluate the ultrasonic influences on the uptake of pigment, adsorption efficiency and final product quality. The uptake of pigment is found to be higher with ultrasonic method than that with conventional technique because of the good dispersing capacity of ultrasound to pigment particles. Besides, it is found that nanoscale pigment has higher adsorption rate when using ultrasonic method because the ultrasound promotes the diffusion of pigment through the fiber-liquid boundary layer. Lastly, the color difference (ΔE) reveals the nanoscale pigment can be deposited on cotton surface more uniformly under ultrasonic condition, improving the product quality obviously.
authors.affiliation: Chemical and Environmental College of Qingdao University, Qingdao 266071, China. hlyqdu@hotmail.com
authors.forename: Longyun
authors.initials: L
authors.lastname: Hao
authors.forename: Rui
authors.initials: R
authors.lastname: wang
authors.forename: Jingquan
authors.initials: J
authors.lastname: Liu
authors.forename: Rongzhan
authors.initials: R
authors.lastname: Liu
mesh_terms: D000838:Anions / Q000737:chemistry*; D003020:Clothing; D003116:Color; D004396:Coloring Agents / Q000737:chemistry*; D032561:Cotton Fiber; D007211:Indoles / Q000737:chemistry*; D036103:Nanotechnology; D009942:Organometallic Compounds / Q000737:chemistry*; D012965:Sodium Chloride / Q000737:chemistry; D014465:Ultrasonics
chemical_list: D000838:Anions; D004396:Coloring Agents; D007211:Indoles; D009942:Organometallic Compounds; C015445:copper phthalocyanine; D012965:Sodium Chloride