Value-added ground work of polyester film forming co-binder for flexographic solvent based printing inks

Egyptian Journal of Applied and Pure Science Pub Date : 2019-07-01 DOI:10.21608/ejaps.2019.175303

M. H. Bakr, M. Ibrahim, E. H. El-Mosallamy, M. Mekewi

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Abstract

Article history: Received 18 August 2019 Accepted 30 September 2019 A new series of hyperbranched polyester-type polymers were synthesized from a variety of comonomers like adipic acid, 1,2-cyclohexanedicarboxylic anhydride, phthalic anhydride, trimethylolpropane, glycerol, trimellitic anhydride and citric acid using dibutyltin oxide as catalyst according to two steps one pot A2+B3 approach by solution polymerization with a fixed monomers ratio. The consequential polymers were brittle, soluble in ethanol, ethyl acetate and methylethylketone. The prepared polymers were utilized as a novel film forming co-binder with nitrocellulose for solvent based printing inks application. The physico-chemical characteristics were confirmed by FT-IR, GPC and acid value as well as hydroxyl value determinations. The mechanical and optical properties of the produced inks printed film were evaluated. The results show that the overall properties of the inks are of promise quality for use as co-binder resins for solvent based printing inks with 50 % partial substitution in formulation.

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柔性版溶剂型印刷油墨用聚酯成膜粘结剂的增值研磨

以二丁基氧化锡为催化剂，采用固定单体比例的两步一锅法，以己二酸、1,2-环己二羧酸酐、邻苯二酸酐、三甲基丙烷、甘油、偏苯三酸酐和柠檬酸为原料，通过溶液聚合，合成了一系列新的超支化聚酯型聚合物。所得聚合物易碎，可溶于乙醇、乙酸乙酯和甲乙基酮。所制备的聚合物作为一种新型的成膜结合剂用于溶剂型印刷油墨。通过红外光谱(FT-IR)、GPC、酸值和羟基值测定等方法对其理化性质进行了表征。对所制备的油墨印刷薄膜的机械性能和光学性能进行了评价。结果表明，该油墨的综合性能良好，可作为溶剂型印刷油墨的共混树脂，配方中部分取代率为50%。

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Egyptian Journal of Applied and Pure Science

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