Claims
- 1. A modified ink vehicle for use in the preparation of printing ink compositions comprising a printing ink resin, a solvent and a strong mineral acid, said strong mineral acid being present at a level of from about 5 to about 20 cc per pound of resin, said printing ink resin being fluid and having a viscosity at room temperature in the range of from about Q to Z6 as determined by the Gardner-Holdt method, said strong mineral acid being selected from the group consisting of nitric acid and mixtures of nitric acid with sulphuric acid having at least about 50 percent by weight of nitric acid, said solvent being selected from the group consisting of turpentine, mineral spirits and short chain esters having a straight or branched chain aliphatic acid moiety of from 2 to 6 carbons and a straight or branched chain, aliphatic alcohol moiety of from 2 to 6 carbons.
- 2. An ink vehicle in accordance with claim 1 wherein said printing ink resin is selected from the group consisting of bodied drying oils and alkyd resins.
- 3. An ink vehicle in accordance with claim 2 wherein said bodied drying oils are selected from the group consisting of linseed oil, soybean oil, tung oil, dehydrated castor oil, oiticica oil, perilla oil, safflower oil, menhaden oil and sardine oil.
- 4. An ink vehicle in accordance with claim 3 wherein said resin is bodied linseed oil.
- 5. An ink vehicle in accordance with claim 1 which further comprises a polyhydric alcohol.
- 6. An ink vehicle in accordance with claim 5 wherein said polyhydric alcohol is a polyol having from 2 to 5 carbon atoms.
- 7. An ink vehicle in accordance with claim 6 wherein said polyol is selected from the group consisting of glycerol, ethylene glycol and propylene glycol.
- 8. An ink vehicle in accordance with claim 5 wherein said polyhydric alcohol is present at a level of from about 25 to about 550 cc per pound of resin.
- 9. An ink vehicle in accordance with claim 1 wherein said solvent is amyl acetate.
- 10. An ink vehicle in accordance with claim 1 wherein said solvent is present at a level of from about 30 to about 300 cc per pound of acid treated resin.
- 11. A printing ink composition comprising the modified ink vehicle of claim 1.
- 12. A method of making modified ink vehicle for use in printing ink compositions comprising providing a printing ink resin, said printing ink resin being fluid and having a viscosity at room temperature in the range of from about Q to about Z6 as determined by the Gardener-Holdt method, acid treating said resin by adding a strong mineral acid selected from the group consisting of nitric acid and mixtures of nitric acid with sulphuric acid having at least 50 percent by weight nitric acid to said printing ink resin and maintaining the temperature of said resin and acid mixture in the range of from about 170.degree. F to about 200.degree. F so as to acid treat said resin with said acid, said strong mineral acid being added to said resin at a level of from about 5 to about 20 cc of acid per pound of resin.
- 13. A method in accordance with claim 12 wherein said printing ink resin is selected from the group consisting of bodied drying oils and alkyd resins.
- 14. A method in accordance with claim 13 wherein said bodied drying oils are selected from the group consisting of linseed oil, soybean oil, tung oil, dehydrated castor oil, oiticica oil, perilla oil, safflower oil, menhaden oil and sardine oil.
- 15. A method in accordance with claim 14 wherein said resin is bodied linseed oil.
- 16. A method in accordance with claim 12 which further comprises adding polyhydric alcohol to said acid treated resin.
- 17. A method in accordance with claim 16 wherein said polyhydric alcohol is a polyol having from 2 to about 5 carbon atoms.
- 18. A method in accordance with claim 17 wherein said polyol is selected from the group consisting of glycerol, ethylene glycol and propylene glycol.
- 19. A method in accordance with claim 17 wherein said polyhydric alcohol is present at a level of from about 25 to about 550 cc per pound of resin.
- 20. A method in accordance with claim 12 which further comprises adding a solvent to said acid treated resin.
- 21. A method in accordance with claim 20 wherein said solvent is selected from the group consisting of turpentine, mineral spirits and short chain esters having a straight or branched chain aliphatic acid moiety of from 2 to 6 carbons and a straight or branched chain, aliphatic alcohol moiety and from 2 to 6 carbons.
- 22. A method in accordance with claim 20 wherein said solvent is present at a level of from about 30 to about 300 cc per pound of acid treated resin.
Parent Case Info
The present invention is a continuation-in-part of application Ser. No. 414,872, filed Nov. 12, 1973, which is continuation-in-part of application Ser. No. 201,242, filed Nov. 22, 1971, both abandoned.
US Referenced Citations (13)
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
414872 |
Nov 1973 |
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Parent |
201242 |
Nov 1971 |
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