Hydrophobic coating for ink jet printing heads
AssigneePelikan Produktions AG
InventorsMichael Popall, Jochen Schulz, Birke-E. Olsowski, Adelheid Martin, Karl Bühler
Life of this patent
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Abstract
The invention provides inkjet print head which has an Anti-wetting Coating of a polymer material, which is produced with the utilization of at least one Compound (I) XaRbSiR1(4-a-b) with X=hydrolyzable group, R=possibly substituted Alkyl, Aryl, Alkenyl, Alkylaryl or Arylalkyl, R1=organic remainder with at least one polymerizable group, a=to 3, b=0 to 2. In addition, a Process for the Manufacture of the Print Heads is made available, as well as a Means for the Coating of same.
Claims13
Inkjet Print Head, characterized in that it has an Anti-wetting Coating of polymer material, said Anti-wetting coating is formed in at least two layers, wherein an outer layer consists of perfluoroalkyltrialkoxysilane or contains said perfluoroalkyltrialkoxysilane, said polymer material is manufactured by utilization of at least one compound I
- XaRbSiR1(4-a-b) I
- With X=hydrolyzable group
- R=optionally, substituted alkyl, aryl, alkenyl alkylaryl or arylalkyl,
- R1=organic remainder with at least one polymerizable group,
- a=1 to 3
- b=0 to 2.
Process for the manufacture of anti-wetting-coated Inkjet Print Heads comprising forming a polymer material from at least one compound
- XaRbSiR1(4-a-b) I
- With X=hydrolyzable group
- R=optionally, substituted Alkyl, Aryl, Alkenyl Alkylaryl or Arylalkyl,
- R1=organic remainder with at least one polymerizable group,
- a=1 to 3
- b=0 to 2,
- and spraying said polymer material onto the Inkjet Print Head while an inert gas is counter-conducted through inkjet openings.
An Anti-wetting Coating for Inkjet Print Heads, said Anti-wetting coating comprising a polymer material, said Anti-wetting coating being formed in at least two layers, wherein an outer layer consists of perfluoroalkyltrialkoxysilane or contains perfluoroalkyltrialkoxysilane, and said polymer material is produced from at least one Compound I
- XaRbSiR1(4-a-b) I
- With X=hydrolyzable group
- R=optionally, substituted Alkyl, Aryl, Alkenyl Alkylaryl or Arylalkyl,
- R1=organic remainder with at least one polymerizable group,
- a=1 to 3
- b=0 to 2.
Dependencies are inferred from the claim text.