发明名称 |
Liquid discharge head and method of producing the same |
摘要 |
Provided is a liquid discharge head comprising a discharge port-forming member having discharge ports for discharging a liquid and having a surface provided with a liquid-repellent film. The liquid-repellent film includes a layer containing a resin composition containing at least one of polyurethane and polyrotaxane disposed on the discharge port-forming member and a layer containing a fluorine compound and having a thickness of 10 nm or less disposed on the resin composition-containing layer. When a scratch-forming tool, a diamond tip having a tip diameter of 15 μm, is pressed onto the liquid-repellent film with a load of 0.098 N (10 gf) and is reciprocated ten times, the depth of a scratch formed on the surface of the liquid-repellent film is smaller than the thickness of the fluorine compound-containing layer. |
申请公布号 |
US9283760(B2) |
申请公布日期 |
2016.03.15 |
申请号 |
US201414476497 |
申请日期 |
2014.09.03 |
申请人 |
Canon Kabushiki Kaisha |
发明人 |
Hamade Yohei;Sawada Etsuko;Tsutsui Satoshi |
分类号 |
B41J2/135;B41J2/16 |
主分类号 |
B41J2/135 |
代理机构 |
Canon U.S.A. Inc., IP Division |
代理人 |
Canon U.S.A. Inc., IP Division |
主权项 |
1. A liquid discharge head comprising:
a discharge port-forming member having discharge ports for discharging a liquid and having a surface provided with a liquid-repellent film, wherein the liquid-repellent film includes a resin composition-containing layer containing a resin composition containing at least one of polyurethane and polyrotaxane disposed on the discharge port-forming member and a layer containing a fluorine compound and having a thickness of 10 nm or less disposed on the resin composition-containing layer, wherein when a scratch-forming tool, a diamond tip having a tip diameter of 15 μm, is pressed onto the liquid-repellent film with a load of 0.098 N (10 gf) and is reciprocated ten times, the depth of a scratch formed on the surface of the liquid-repellent film is smaller than the thickness of the fluorine compound-containing layer. |
地址 |
Tokyo JP |