FIELD: printing industry.
SUBSTANCE: in the invention the ink jet printing head is designed, comprising an element provided with an ejection port for ejecting the ink. The said ink jet printing head additionally comprises a water-repellent layer comprising a cured product of the condensed product obtained by condensation of the hydrolyzable silane compound comprising an epoxy group, and a hydrolyzable silane compound comprising a perfluoropolyether group on the surface of the said element on the side where the ejection port comes.
EFFECT: improved quality of printing.
16 cl, 8 dwg, 1 tbl
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| INHIBITION OF OVERGROWING | 1998 |
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| WATER REPELLENT ELEMENT AND METHOD OF HYDROPHOBIC COATING PRODUCING | 2006 |
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