Preparation of Covalent and Solvent-resistance Colored Latex Particles and Its Application on Cotton Fabric
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ISSN 1229-9197 (print version) ISSN 1875-0052 (electronic version)
Preparation of Covalent and Solvent-resistance Colored Latex Particles and Its Application on Cotton Fabric Yi Yang1, Min Li1*, Aijun Tang2, Yayun Liu2, Zhen Li2, and Shaohai Fu1* 1
Jiangsu Engineering Research Center For Digital Textile Inkjet Printing, Key Laboratory of Eco-Textile, Jiangnan University, Ministry of Education, Wuxi, Jiangsu 214122, China 2 Shanghai Anoky Digital Technology Co., Ltd., Shanghai 200000, China (Received September 11, 2019; Revised November 24, 2019; Accepted December 18, 2019)
Abstract: Conventional colored latex particles have poor solvent resistance due to the absence of chemical bonds between the dye and polymer component, resulting in staining and greatly restricting its application. In this research, the disperse dye was chemically bonded to the polymer to prepare covalent and solvent-resistance colored latex particles. Firstly, C.I. Disperse Red 60, as a common disperse dye in industry, was modified by acryloyl chloride (amidation reaction) for the purpose of introducing the C=C bonds. The structure of modified C.I. Disperse Red 60 was confirmed by 1HNMR, FTIR and elemental analysis and its spectral property was also evaluated. Then the covalent colored latex particles were synthesized via miniemulsion copolymerization of styrene (St) and ethyl acrylate (EA) in presence of modified C.I. Disperse Red 60 monomer. Results of FTIR, TG, DSC and TEM indicated that the covalent colored latex particles were successfully prepared. By using UV-spectroscopy, the solvent resistance of the colored latex membranes in petroleum ether, hexane, cyclohexane, and ethanol was monitored, respectively. Slight change of the absorption was detected for 10 days, which verified the excellent solvent resistance of covalent colored latex membranes. Finally, the prepared colored latex particles were applied on cotton printing in the absence of binder. The results showed that the colored latex particles printed fabric had superior rubbing fastness and soft hand feel. Keywords: Modified C.I. Disperse Red 60, Covalent colored latex particles, Solvent resistance, Cotton printing
compared with the corresponding non-covalent colored PU latex films. Furthermore, Li [20] fabricated a kind of covalent colored polymer latex with a much better light fastness than that of the noncovalent colored polymer latexes. Despite the significant achievements, there are few research reports on the preparation of colored latex particles with excellent solvent resistance. To solve the above problem, the solvent resistant colored latexes particles were prepared as an attempt to extend their applicability. Disperse dyes with excellent color strength have become one of the most important colorants for preparing colored latex particles. Importantly, the disperse dyes have massive hydroxyl and amino groups, which can easily be copolymerized with other monomers to prepare covalent colored latex particles after modification. In this paper, C.I. Disperse Red 60 was modi
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