分散荧光染料色浆的制备及稳定性能

Preparation of Fluorescent Disperse Dye Paste and Its Stability

以苯并吡喃类分散荧光染料和萘磺酸类阴离子分散剂为原料,通过湿磨法制备分散荧光染料色浆,并研究其色浆稳定性能,以制备荧光喷墨印花墨水。结果表明,随研磨时间延长,4种分散荧光染料色浆的粒径和荧光强度均有所降低。分散荧光桃红BG色浆离心50 min后的比吸光度仍达到78.1%,离心稳定性较好。在55℃条件下放置5 d后分散荧光染料色浆的粒径有所增加,其中分散荧光桃红BG染料色浆粒径的增加率仅为7.5%,染料色浆热稳定性能较好;加热处理过后分散荧光染料色浆的荧光强度有所降低。综合比较,分散荧光桃红BG染料色浆的稳定性能良好,更加适用于喷墨印花墨水的配制。

Fluorescent disperse paste was prepared using wet grinding process with four kinds of benzopyran fluorescent disperse dye and naphthalene sulfonic derivative dispersing agent as raw materials, and its stability property was assessed for the purpose of manufacturing inkjet printing ink.