• 한국인쇄학회지
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• 제29권1호
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• pp.45-59
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• 2011

According as gradually increasing the demand for Eco-friendly products it has been progressed fairly development at a field of printing and printing inks. The Inks are used by soy oil beginning of ink industry for preventing environment. Now it is possible to make Eco-friendly inks with vegetable ester. So it is not necessary to use petroleum-based solvents for preventing environment. But There is some problems if using vegetable ester to inks. Vegetable ester has high solubility, it causes misting and low viscosity of the Inks. So resin is required high performance. Thus, in this paper, I studied about the properties variation of the Varnish and inks According to using the phenolic modified rosin ester and Soy oil Methyl esters. The compared in order of average molecular weight by the GPC method, rheological properties were found by rotational rheometer, and emulsion behavior were compared by high speed emulsification tester.

• 한국인쇄학회지
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• 제30권1호
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• pp.1-19
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• 2012

According as gradually increasing the demand for eco-friendly at the printing process, it has been progressed fairly development. Especially, the inks are used by soy oil beginning of ink industry for preventing environment, it is possible to make eco-friendly inks with vegetable ester. So it is not necessary to use petroleum-based solvents at all for preventing environment. These eco-friendly inks have a benefits they are able to use the renewable resource. But basically vegetable oils have that reduce the VOC(Volatile Organic Compound) and high viscosity, high solubility properties. So if the vegetable oils use in the ink, set off problem occur on the paper because of slow drying time. In case of vegetable ester, it has similar the molecular weight and kinetic viscosity with hydrocarbon solvent, it is able to control the power of dilution about the resin. So, it has benefit that solve the problem of the existing eco-friendly inks. In this study, different types of ester were made by six types of vegetable oils and used ester in the varnishes and inks properties are comparison with hydrocarbon solvent based ink. By considering the intrinsic properties of vegetable oil, ester used to analyze the changes in ink properties, using ester varnish is applied to study the rheology characteristics and emulsification with inks.

• 공업화학
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• 제10권5호
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• pp.726-730
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• 1999

잉크조성분의 차이, 탈묵약품 및 열화기간에 따른 신문지의 탈묵성을 비교하였다. 잉크조성분으로 용제, 즉 대두유 30%(A), 대두유 50%(B), 광물유 45%(C) 및 아마인유 42%(D)를 각각 넣어 잉크를 제조하고 신문용지에 인쇄하였다. 신문지를 6개월 동안 자연 열화시키면서 열화기간에 따른 탈묵성을 비교하였다. 또한 탈묵약품의 차이에 따른 동일시료의 탈묵성을 비교하였다. 신문지 탈묵펄프의 백색도는 잉크조성분, 열화기간과 탈묵약품에 따라 영향을 받았다. 즉 탈묵펄프의 백색도는 열화기간의 연장에 따라 낮아지며, 광물유 잉크, 대두유 잉크(30%), 대두유 잉크(50%), 아마인유 잉크 순으로 낮아졌다. 또한 탈묵약품에 따라서는 주어진 수율에서 lipase, cellulase, 기존 화학약품 탈묵방법 순으로 백색도가 감소하였다. 주어진 백색도에서 탈묵 수율은 백색도 변화와 동일한 경향을 나타내었다. 탈묵펄프의 강도는 열화기간에 따라 1개월까지는 조금 증가하고 그 후에는 감소하거나 현상태를 유지하였다. 인쇄 잉크의 조합 즉, 광물유, 아마인유, 대두유 잉크 순으로 탈묵펄프의 제반 강도가 낮아졌다. 탈묵약품에 따라서는 lipase, 기존 화학약품, cellulase 순으로 탈묵펄프의 제반 강도가 낮아졌다.