纳米粉体TiO_(2)对靛蓝染色织物光褪色的影响  

Effect of Nanopowder TiO_(2) on Photofading of Indigo-dyed Fabrics

作　　者：汪媛[1] 张聪 彭勇刚[1] 李奕 Wang Yuan;Zhang Cong;Peng Yonggang;Li Yi(School of Petrochemical Technology,Changzhou University,Changzhou,Jiangsu 213164,China;Meisheng Biomaterials Co.,Ltd.,Changzhou,Jiangsu 213164,China)

机构地区：[1]常州大学石油化工学院,江苏常州213164 [2]美胜生物材料有限公司,江苏常州213164

出　　处：《针织工业》2024年第9期67-70,共4页Knitting Industries

摘　　要：采用钛酸四正丁酯(TBOT)作为TiO_(2)的前驱体,通过水热反应合成单晶粒TiO_(2)粉体,制备了颗粒状的锐钛型纳米粉体TiO_(2)。结果表明:紫外光照条件下,纳米粉体二氧化钛可以使靛蓝织物表观深度发生大幅度下降,粉体TiO_(2)浓度为10%时,K/S值下降率达到51.81%;促进剂的参与有助于靛蓝织物的褪色效果;涂抹粉体TiO_(2)后的染色布样,在紫外线照射后,颜色值ΔL^(*)偏亮白,同时随着粉体TiO_(2)浓度的增大,ΔL*增大,颜色亮度增大,Δa^(*)初始为负值,颜色偏绿,随着粉体TiO_(2)浓度的增大,样品颜色绿光减少,红光增加;当粉体TiO_(2)浓度为10%,随着光照时间的增加,Δa^(*)值偏向正值,染色布样色光向偏红光偏移,紫外光照射6~8 h时Δa^(*)变化幅度较大,10 h之后,趋于缓慢。Using a tra-butyl titanate(TBOT)as the precursor of TiO_(2),the single-grain TiO_(2) powder was synthesized by hydrothermal reaction,and the granular anatase nanopore TiO_(2) was prepared.The results show that under the ultraviolet conditions,the nano powder titanium dioxide can greatly reduce the apparent depth of indigo fabric,when the TiO_(2) concentration of powder TiO_(2) is 10%,the decrease rate of K/S value reaches 51.81%.The dyeing cloth sample used with powder TiO_(2),after ultraviolet irradiation,the color value ΔL^(*)is bright white,at the same time with the increase of powder TiO_(2) concentration,ΔL^(*)increases,the color brightness increases,Δa^(*)begins to be larger negative value,the color is green,and with the increase of powder TiOz concentration,the sample color green light decreases,red light increases.The TiO_(2) concentration of powder is 10%,with the increase of light time,the Δa^(*) value is biased to positive,and the staining cloth color light shift to red light,which change greatly from 6 to 8 h under the ultraviolet conditions,and change slowly after 10 h.

关 键 词：TiO_(2) 纳米粉体 靛蓝 棉织物 褪色 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]