Ink jet faceplate coatings comprising structured organic films
View Patent ↗A coating for an ink jet printhead front face, wherein the coating comprises a structured organic film (SOF) comprising a plurality of segments, a plurality of linkers arranged as a covalent organic framework. Methods for preparing a coating for an ink jet printhead front face, wherein the coating comprises a SOF are also disclosed.
1. A coating for an ink jet printhead front face, the coating comprising a structured organic film (SOF) comprising a plurality of segments, a plurality of linkers arranged as a covalent organic framework (COF).
2. The coating of claim 1 , wherein jetted drops of a UV curable ink or jetted drops of solid ink on the ink jet printhead front face exhibit a contact angle of about a contact angle of from about 140° to about 60°.
3. The coating of claim 2 , wherein the contact angle is from about 110° to about 75°.
4. The coating of claim 3 , wherein the SOF is a fluorinated SOF.
5. The coating of claim 1 , wherein the SOF is a composite SOF.
6. The coating of claim 1 , wherein the SOF has an added functionality.
7. The coating of claim 1 , wherein the SOF comprises a capping unit.
8. An ink jet printhead comprising: a front face having disposed on a surface thereof a coating, the coating comprising a structured organic film (SOF) comprising a plurality of segments, a plurality of linkers arranged as a covalent organic framework (COF).
9. The ink jet printhead of claim 8 , wherein jetted drops of a UV curable ink or jetted drops of solid ink on the ink jet printhead front face exhibit a contact angle of about a contact angle of from about 140° to about 60°.
10. The ink jet printhead of claim 9 , wherein the contact angle is from about 110° to about 75°.
11. The ink jet printhead of claim 8 , wherein the SOF is a fluorinated SOF.
12. The ink jet printhead of claim 8 , wherein the SOF is a composite SOF.
13. The ink jet printhead of claim 8 , wherein the SOF has an added functionality.
14. The ink jet printhead of claim 8 , wherein the SOF comprises a capping unit.
15. An apparatus for printing comprising: the ink jet print head of claim 8 .
16. The apparatus for printing of claim 15 , wherein jetted drops of a UV curable ink or jetted drops of solid ink on the ink jet printhead front face exhibit a contact angle of about a contact angle of from about 140° to about 60°.
17. The apparatus for printing of claim 15 , wherein the contact angle is from about 110° to about 75°.
18. The apparatus for printing of claim 15 , wherein the SOF is a fluorinated SOF.
19. A method for making an ink jet printhead nozzle plate comprising:
providing a plate substrate; and
forming a coating comprising a structured organic film (SOF) comprising a plurality of segments, a plurality of linkers arranged as a covalent organic framework (COF) on the plate substrate.
20. The method of claim 19 , wherein forming a coating comprises:
(a) preparing a liquid-containing reaction mixture comprising:
a solvent, and
a plurality of molecular building blocks each comprising a segment and functional groups;
(b) depositing the reaction mixture as a wet film; and
(c) promoting a change of the wet film and forming a dry SOF.