Water-in-oil type emulson ink for stencil printing
View Patent ↗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).
1. 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.
2. A water-in-oil type emulsion ink as claimed in claim 1 , wherein said esterified vegetable oil is obtained by recycling and esterifying an edible waste oil.
3. A water-in-oil type emulsion ink as claimed in claim 1 , wherein said esterified vegetable oil contains soybean oil methyl ester.
4. A water-in-oil type emulsion ink as claimed in claim 1 , wherein said esterified vegetable oil contains soybean oil butyl ester.
5. A water-in-oil type emulsion ink as claimed in claim 1 , wherein said esterified vegetable oil contains tall oil butyl ester.
6. A water-in-oil type emulsion ink as claimed in claim 1 , wherein said oil phase contains a resin.
7. A water-in-oil type emulsion ink as claimed in claim 1 , wherein said oil phase contains a coloring agent.
8. 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.
9. A water-in-oil type emulsion ink as claimed in claim 8 , wherein the esterified vegetable oil contains at least one selected from the group consisting of soybean oil methyl ester, soybean oil butyl ester, and tall oil butyl ester.
10. A water-in-oil type emulsion ink as claimed in claim 8 , wherein the aqueous phase contains a coloring agent.
11. A water-in-oil type emulsion ink as claimed in claim 8 , wherein the oil phase contains a coloring agent.
12. A water-in-oil type emulsion ink as claimed in claim 8 , wherein the oil phase contains a resin.
13. 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.
14. A water-in-oil type emulsion ink as claimed in claim 13 , wherein the aqueous phase contains a coloring agent.
15. A water-in-oil type emulsion ink as claimed in claim 13 , wherein the oil phase contains a coloring agent.
16. A water-in-oil type emulsion ink as claimed in claim 13 , wherein the oil phase contains a resin.