Method of forming an adherent fluorosilane layer on a substrate and ink jet recording head containing such a layer
AssigneeXAAR Limited
InventorRosemary B. Albinson
Life of this patent
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Abstract
A method of reducing the wettability of non-vitreous surfaces, and ink jet recording heads including a surface having reduced wettability, are provided wherein a layer of cured siloxane is formed on the non-vitreous surface and a layer comprising at least one fluorosilane is formed on the siloxane layer.
Claims38
A method of reducing the wettability of a surface comprising plastic or non-vitreous inorganic material by providing an adherent coating of fluorosilane on said surface, said method comprising the steps of:
- (a) forming on said surface an adherent first layer comprising cured siloxane;
- and
- (b) applying to said first layer a second layer comprising at least one fluorosilane having a silicon atom to which is attached at least one hydrolyzable group and at least one fluorine-containing organic group which donates non-wetting properties to said second layer.
An ink jet recording head of the type in which ink droplets are jetted from a jet orifice of said head toward a recording material, said head defining a surface surrounding said jet orifice comprising plastic or non-vitreous inorganic material coated with a fluorosilane layer which reduces the wettability of said surface, with a layer comprising cured siloxane which is adherent to said surface interposed between said surface and said fluorosilane layer, said fluorosilane layer being derived from at least one fluorosilane having at least one hydrolyzable group attached to a silicon atom.
An ink jet recording head of the type wherein ink droplets are jetted from a jet orifice of said head toward a recording material and wherein said head defines a surface comprising at least one solvent-wettable zone and at least one zone which exhibits poor solvent-wettability, said latter zone comprising a layer of fluorosilane bonded to said surface by means of an intermediate layer comprising cured siloxane.
Dependencies are inferred from the claim text.