Water-in-oil type emulson ink for stencil printing
AssigneeTohoku Ricoh Co., Ltd.
InventorsYukako Konno, Keisuke Asada
Life of this patent
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Abstract
A water-in-oil type emulsion ink composed of 10–90% by weight of an oil phase and 90–10% by weight of an aqueous phase. The oil phase contains an esterified vegetable oil (an esterified vegetable oil obtained by recycling and esterifying edible waste oil such as soybean methyl ester, soybean butyl ester, or tall oil butyl ester).
Claims16
A water-in-oil type emulsion ink comprising 10–90% by weight of an oil phase and 90–10% by weight of an aqueous phase, said oil phase containing an esterified vegetable oil, and said aqueous phase containing a coloring agent.
A water-in-oil type emulsion ink comprising 10–90% by weight of an oil phase and 90–10% by weight of an aqueous phase, said oil phase containing an esterified vegetable oil obtained by recycling and esterifying an edible waste oil.
A water-in-oil type emulsion ink comprising 10–90% by weight of an oil phase and 90–10% by weight of an aqueous phase, said oil phase containing an esterified vegetable oil, and said esterified vegetable oil containing soybean oil methyl ester or soybean oil butyl ester.
Dependencies are inferred from the claim text.