| 摘要 |
<p>PURPOSE:To obtain the emulsion ink low in temperature dependency of viscosity and excellent in high-temperature shelf life, etc., by mixing an isostearic acid ester as a surfactant in the oil phase of a water in oil type emulsion having a specified ratio composition. CONSTITUTION:This ink is composed of a water in oil type emulsion consisting of about 10 to 50wt.% oil phase (e.g. oil components such as liquid paraffin and light oil and a pigment dispersant such as an alkylamine-based polymer compound) and about 90 to 50wt.% aqueous phase (e.g. water, an electrolyte, a rotproofing and mildewproofing agent) and containing an isostearic acid ester (e.g. sorbitan isostearate or glycerin isostearate) preferably having <=6 HLB value as a surfactant in the oil phase.</p> |
