Roy Ananda Sankar, Bhattacharjee Moumita, Mondal Rabindranath, Ghosh Santinath
DIC India Limited, Taratola, Kolkata, India.
J Oleo Sci. 2007;56(12):623-8. doi: 10.5650/jos.56.623.
Until the middle of this century, fats and oils are the major raw material source for paints, coating and lubricating applications. These markets are completely taken over by petroleum based stocks due to their abundance and versatility. However, recent public awareness to use environmentally acceptable products that minimize pollution, are compatible to human health and readily biodegradable created opportunities for vegetable oils for application in paints and printing inks. The formulation of vegetable oil methyl ester based 'green' offset printing ink that reduces the volatile organic compounds (VOC) has been discussed in the present study. Methyl esters of rapeseed, soybean, rice bran and palm oil have been prepared and their physical properties have been measured and compared with standard petroleum feed stock. Varnishes were prepared with these esters and their properties are also compared with that of the petroleum based products. Rheological properties of the inks are also evaluated and compared with standard printing ink using petroleum based solvent. In general performance of the ester-based printing inks are comparable with that of the mineral oil based product. On the basis of tack stability and gloss, ester based inks are much superior than the mineral oil based products. In conclusion, a new non-volatile diluent for printing ink has been developed. The diluent is made from common vegetable oils like rapeseed, soybean, rice bran and palm oil, a renewable source that is environmental friendly. Vegetable oil esters offer a cost effective solution for mineral oil based printing ink to meet VOCs regulations.
直到本世纪中叶，油脂一直是涂料、涂层和润滑应用的主要原料来源。由于石油基原料丰富且用途广泛，这些市场已完全被其占据。然而，最近公众对使用环保产品的意识增强，这些产品可将污染降至最低、对人体健康无害且易于生物降解，这为植物油在涂料和印刷油墨中的应用创造了机会。本研究讨论了基于植物油甲酯的“绿色”胶印油墨的配方，该油墨可减少挥发性有机化合物（VOC）。已制备了油菜籽、大豆、米糠和棕榈油的甲酯，并测量了它们的物理性质，并与标准石油原料进行了比较。用这些酯制备了清漆，并将其性能与石油基产品的性能进行了比较。还评估了油墨的流变性能，并与使用石油基溶剂的标准印刷油墨进行了比较。总体而言，酯基印刷油墨的性能与矿物油基产品相当。基于粘性稳定性和光泽度，酯基油墨比矿物油基产品优越得多。总之，已开发出一种新型的油墨非挥发性稀释剂。该稀释剂由油菜籽、大豆、米糠和棕榈油等常见植物油制成，是一种可再生且环保的资源。植物油酯为矿物油基印刷油墨提供了一种经济有效的解决方案，以满足VOC法规要求。
