Claims
- 1. An ink jet recording head, comprising:
- a body having a plurality of discharge ports having peripheral portions, at least said peripheral portions of said discharge ports comprising a film which contains a polymer having a fluorine heterocyclic structure in a principal chain.
- 2. An ink jet recording head according to claim 1, wherein said film has a thickness in said peripheral portions of said discharge ports of about 0.1 to 2 .mu.m.
- 3. An ink jet recording head according to claim 1, further comprising:
- discharge energy generating means for discharging and ejecting ink droplets, said discharge energy generating means including heat energy generating means for causing film boiling in the ink in response to a supply of an electrical signal from a recording apparatus.
- 4. A method for manufacturing an ink jet head having a plurality of discharge ports, a plurality of ink channels communicating with said discharge ports, and a plurality of energy generating elements provided in said ink channels for generating energy for causing a discharge of an ink comprising the steps of:
- making an oxidation treatment layer on a discharge port formation face in a workpiece for making said discharge ports;
- adding a material having a hydrophilic property on a side of said discharge port formation face;
- providing an intermediate layer having a coupling agent containing Si on said oxidation treatment layer on which the material having said hydrophilic property is added; and
- providing a water-repellent layer by adding a material having a water-repellent property on an upper layer of said intermediate layer.
- 5. A method for manufacturing an ink jet head according to claim 4, wherein said workpiece is an organic material.
- 6. A method for manufacturing an ink jet head according to claim 4, wherein said coupling agent containing Si has an end group selected from the group consisting of a methoxy group and an ethoxy group at its one end, and an end group selected from the group consisting of an amino group, an epoxy group and a mercapto group at the other end.
- 7. A method for manufacturing an ink jet head according to claim 4, wherein said water-repellent layer is a fluorine amorphous thermoplastic resin.
- 8. A method for manufacturing a recording head having a plurality of discharge ports, a plurality of ink channels communicating with said discharge ports, and a plurality of energy generating elements provided in said ink channels for generating energy for causing a discharge of an ink which are provided in said ink channels, comprising the steps of:
- causing an oxidation treatment of a surface on a discharge port formation face side in a workpiece;
- providing an intermediate layer having a coupling agent containing Si on an oxidized said discharge port formation face; and
- providing a film containing a polymer having a fluorine heterocyclic structure in a principal chain, thereby adding a water-repellent property to an upper layer of said intermediate layer.
- 9. A method for manufacturing an ink jet head according to claim 8, wherein said step of causing said oxidation treatment is a UV radiation ozone cleaning.
- 10. A method for manufacturing an ink jet head having a plurality of discharge ports, a plurality of ink channels communicating with said discharge ports, and a plurality of energy generating elements provided in said ink channels for generating energy for causing a discharge of an ink which are provided in said ink channels, comprising the steps of:
- causing an oxidation treatment of a surface on a discharge port formation face side in a workpiece;
- providing an intermediate layer containing an organic metal compound on an oxidized said discharge port formation face; and
- providing a layer containing a polymer having a fluorine heterocyclic structure in a principal chain, thereby adding a water-repellent property to an upper layer of said intermediate layer.
- 11. A method for manufacturing an ink jet head having a plurality of discharge ports, a plurality of ink channels communicating with said discharge ports, and a plurality of energy generating elements provided in said ink channels for generating energy for causing a discharge of an ink which are provided in said ink channels, comprising the steps of:
- causing an oxidation treatment of a surface on a discharge port formation face side in a workpiece;
- providing an intermediate layer containing an amine resin on an oxidized said discharge port formation face; and
- providing a layer containing a polymer having a fluorine amorphous thermoplastic resin in a principal chain, thereby adding a water-repellent property to an upper layer of said intermediate layer.
- 12. A method for manufacturing an ink jet head having a plurality of discharge ports, a plurality of ink channels communicating with said discharge ports, and a plurality of energy generating elements provided in said ink channels for generating energy for causing a discharge of an ink which are provided in said ink channels, comprising that step of:
- causing an oxidation treatment of a surface on a discharge port formation face side in a workpiece;
- providing an intermediate layer containing an amine curing resin on an oxidized said discharge port formation face; and
- providing a layer containing a polymer having a fluorine thermoplastic resin in a principal chain, thereby adding a water-repellent property to an upper layer of said intermediate layer.
Priority Claims (4)
Number |
Date |
Country |
Kind |
2-193686 |
Jul 1990 |
JPX |
|
3-43658 |
Mar 1991 |
JPX |
|
3-43671 |
Mar 1991 |
JPX |
|
3-43672 |
Mar 1991 |
JPX |
|
Parent Case Info
This application is a division of application Ser. No. 07/733,155, filed Jul. 19, 1991, abandoned.
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Divisions (1)
|
Number |
Date |
Country |
Parent |
733155 |
Jul 1991 |
|