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A low surface energy coating is needed for an ink jet print head, and this coating comprises a fluoro-epoxy.
English (United States)
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Low Surface Energy Fluoro-Epoxy Coating for Drop-On-Demand Nozzles
A low surface energy coating is needed for an ink jet print head, and this
coating comprises a fluoro-epoxy.
It has been known to produce a low surface energy coating on an ink jet head
to prevent wetting of the nozzle face, and TEFLON* is one material that has been
suggested for use. However, TEFLON material has poor adhesion
characteristics on some surfaces.
A fluoro-epoxy coating has been found to produce a satisfactory low surface
energy coating which is resistant to wear, is non-soluble in ink, and does not
readily absorb water. In addition, the wetting angle was found to be very similar
to that measured for TEFLON material. The specific fluoro-epoxy material found
to be suitable is
Trademark of E.I. du Pont de Nemours & Co.
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