JP2593922B2 - Ink jet recording head - Google Patents
Ink jet recording headInfo
- Publication number
- JP2593922B2 JP2593922B2 JP18966188A JP18966188A JP2593922B2 JP 2593922 B2 JP2593922 B2 JP 2593922B2 JP 18966188 A JP18966188 A JP 18966188A JP 18966188 A JP18966188 A JP 18966188A JP 2593922 B2 JP2593922 B2 JP 2593922B2
- Authority
- JP
- Japan
- Prior art keywords
- ink
- recording head
- recording
- liquid
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/16—Production of nozzles
- B41J2/1606—Coating the nozzle area or the ink chamber
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、一般にインクと呼ばれる記録液を微細口
（オリフィス）から小滴として吐出、飛翔させ、この小
滴の被記録面への付着を以て記録を行なうインクジェッ
ト記録装置の記録ヘッド、特に、インク吐出口周縁に改
良を加えたインクジェット記録ヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention discharges and flies a recording liquid, generally called ink, from a fine opening (orifice) as small droplets, and adheres the small droplets to the recording surface. The present invention relates to a recording head of an ink jet recording apparatus for performing recording, and more particularly, to an ink jet recording head in which the periphery of an ink discharge port is improved.
現在知られている各種記録方式の中でも、記録時に騒
音の発生がほとんどないノンインパクト記録方式であっ
て、且つ、高速記録が可能であり、しかも、普通紙に特
別の定着処理を必要とせずに記録の行なえる所謂インク
ジェット記録法は、極めて有用な記録方式であると認め
られている。このインクジェット記録法については、こ
れ迄にも様々な方式が提案され、改良が加えられて商品
化されたものもあれば、現在もなお、実用化への努力が
続けられているものもある。Among the various recording methods known at present, it is a non-impact recording method that generates almost no noise at the time of recording, is capable of high-speed recording, and does not require a special fixing process on plain paper. The so-called ink jet recording method capable of recording is recognized as an extremely useful recording method. Various methods have been proposed for this ink jet recording method, some of which have been commercialized with improvements, and some of which are still being put to practical use.
インクジェット記録技術において適用される記録ヘッ
ドは、その代表的なものとして例えば第２図に示すよう
な構造を有している。即ち例えばガラス、セラミック
ス、金属等で形成され、且つ記録液IKの流路６の一部を
形成する、微細な中空を有する導管２の外周囲には、導
管２内に満たされている記録液IKを吐出口（吐出オリフ
ィス）４より吐出される為の手段である、例えばピエゾ
素子３が付設されて、記録ヘッド１が構成されている。
導管２の一方の端部には別に設けられている不図示の貯
蔵槽より導管２内に、矢印Ｐで示すように記録液IKを供
給する為に貯蔵槽と導管２との間を連結し、流路６の一
部を構成する例えばポリ塩化ビニール等で形成されてい
るパイプ５が接続されている。A recording head applied in the ink jet recording technique has a typical structure as shown in FIG. 2, for example. That is, for example, the recording liquid filled in the conduit 2 is formed around the outer periphery of the conduit 2 having a fine hollow, which is formed of glass, ceramics, metal, or the like and forms a part of the flow path 6 of the recording liquid IK. The recording head 1 is provided with, for example, a piezo element 3 as a means for discharging IK from a discharge port (discharge orifice) 4.
At one end of the conduit 2, a connection is made between the storage tank and the conduit 2 to supply the recording liquid IK as shown by an arrow P into the conduit 2 from a storage tank (not shown) provided separately. The pipe 5 which is a part of the flow path 6 and is made of, for example, polyvinyl chloride is connected thereto.
今、この様な記録ヘッド１においては、導管２の終端
部に設けられた吐出オリフィス４の回りの表面の物性
は、吐出オリフィス４より記録液IKを常時安定して吐出
させる上で極めて重要である。Now, in such a recording head 1, the physical properties of the surface around the discharge orifice 4 provided at the end of the conduit 2 are extremely important for constantly and stably discharging the recording liquid IK from the discharge orifice 4. is there.
即ち、吐出オリフィス４は、例えば図示されている様
に、導管２と連続一体的に導管２の終端部を形成する様
に設けられても良いし、或いは、所定径の穴の設けられ
た吐出オリフィス板を導管２の終端部に付設して吐出オ
リフィス４としても良いが、何れにしても記録ヘッド１
の使用時に吐出オリフィス４の外回り表面に記録液が回
り込んで、吐出オリフィス４付近の一部にでも液溜りが
生ずると、流路６内の記録液IKが吐出オリフィス４から
吐出される際、その飛翔方向が正規の方向（所定方向）
から、離脱するようになり、更には、液溜りの状態の不
安定さから、吐出される毎に、その飛翔方向が区区にな
るという不都合が生じ、安定した液滴吐出が行えず、良
好な記録が行えなくなる。又、更には、吐出オリフィス
４の回り全面が記録液IKの膜で覆われると、所謂スプラ
ッシュ現象が生じて記録液の散乱が起り、これ又、安定
した記録が行えなくなる。或いは又、吐出オリフィス４
を覆う液溜りが大きくなると、記録ヘッドの液滴吐出が
不能状態に陥ることすらある。That is, the discharge orifice 4 may be provided so as to form a terminal end portion of the conduit 2 continuously and integrally with the conduit 2 as shown, for example, or a discharge orifice 4 provided with a hole having a predetermined diameter. An orifice plate may be attached to the end of the conduit 2 to form the discharge orifice 4, but in any case, the recording head 1
When the recording liquid wraps around the outer peripheral surface of the discharge orifice 4 at the time of use, and a liquid pool also occurs in a part near the discharge orifice 4, when the recording liquid IK in the flow path 6 is discharged from the discharge orifice 4, The flight direction is the normal direction (predetermined direction)
From the liquid pool, and furthermore, due to the instability of the state of the liquid pool, there is a disadvantage that the flight direction is divided every time the liquid is discharged, and stable droplet discharge cannot be performed. Recording cannot be performed. Further, when the entire surface around the ejection orifice 4 is covered with the film of the recording liquid IK, a so-called splash phenomenon occurs, and the recording liquid is scattered, so that stable recording cannot be performed. Alternatively, discharge orifice 4
If the liquid pool covering the print head becomes large, the recording head may even become unable to discharge droplets.
従来から吐出オリフィスを囲む外表面をシリコーンオ
イル、アラビヤゴム等で処理して撥水または撥油性にす
る方法は実公昭48−36188号公報等によって公知であ
る。しかしこれらの方法は吐出オリフィスを形成するガ
ラス、金属等の部材との接着性が悪いために耐久性がな
く、目的とする効果は初期的なものにすぎなかった。ま
た撥液性も充分ではなく、例えばシリコーン系の物質で
は水系のインクに対して撥液性を示しても、アルコール
系、ケトン系、エステル系等の有機溶剤系インクに対し
ては全く撥液性を示さなかった。Conventionally, a method of treating the outer surface surrounding a discharge orifice with silicone oil, arabic rubber or the like to make it water-repellent or oil-repellent is known from Japanese Utility Model Publication No. 48-36188. However, these methods are not durable due to poor adhesion to a member such as glass or metal forming a discharge orifice, and the intended effects are only initial. In addition, the liquid repellency is not sufficient. For example, even if a silicone-based material shows liquid repellency to water-based ink, it is completely liquid-repellent to alcohol-based, ketone-based, ester-based, or other organic solvent-based inks. Did not show sex.
さらに、フロロアルキルアルコキシシラン等でインク
ジェット吐出口の周縁部を処理して撥インク性にした例
（特許出願公開昭56−89569）もあるが、処理を完全に
するには高温（150℃以上）で長時間加熱するとか、高p
Hの溶液（例えばアミン溶液）中で加熱する等、インク
ジェット吐出口の材料を破壊する恐れのある処理が必要
であった。又表面に水酸基等の活性基の少ない素材、あ
るいは極性の小さい素材に対しては処理の効果を示しに
くい等の問題があった。In addition, there is an example in which the periphery of an ink jet discharge port is treated with a fluoroalkylalkoxysilane or the like to make it ink-repellent (Patent Application Publication No. 56-89569), but in order to complete the treatment, a high temperature (150 ° C. or higher) is required. Heating for a long time or high p
It was necessary to perform a process such as heating in a solution of H (for example, an amine solution) that might destroy the material of the inkjet discharge port. Also, there is a problem that it is difficult to show the effect of the treatment on a material having few active groups such as hydroxyl groups on the surface or a material having a small polarity.
本発明は、上記の点に鑑み成されたものであって、使
用の際には常時所定の方向に実質的に均一液体量を以て
安定した吐出が行え、高速記録に充分適用され得る記録
ヘッドを容易な処理で提供することを目的とする。加え
て記録ヘッドの素材を選ばない処理を提供する。The present invention has been made in view of the above points, and provides a recording head capable of performing stable ejection with a substantially uniform liquid amount in a predetermined direction at all times during use, and being sufficiently applicable to high-speed recording. The purpose is to provide with easy processing. In addition, the present invention provides processing that does not select the material of the recording head.
本発明は、インクの流路として細孔を有し、この細孔
の一端を吐出口として前記インクの小滴を吐出、飛翔さ
せ、このインク小滴の被記録面への付着を以て記録を行
うインクジェット記録ヘッドに於て、少なくとも前記吐
出口の周縁部が式（Ｉ） Ｒ−Si（NH2）３ （Ｉ） または式（II） Ｒ−Si（NH2）２−NH−Si（NH2）２−Ｒ′ （II） （式ＩおよびII中、ＲおよびＲ′はフッ素によって１以
上の水素が置換された炭化水素基を示し、ＲとＲ′は互
いに同じでも異なっていてもよい。） で表される化合物で処理されていることを特徴とするイ
ンクジェット記録ヘッドである。The present invention has a pore as an ink flow path, and discharges and flies a droplet of the ink using one end of the pore as a discharge port, and performs recording by attaching the ink droplet to a recording surface. In the ink jet recording head, at least the peripheral portion of the discharge port has the formula (I) R-Si (NH 2 ) 3 (I) or the formula (II) R-Si (NH 2 ) 2 -NH-Si (NH 2 ) 2- R '(II) (In formulas I and II, R and R' each represent a hydrocarbon group in which one or more hydrogen atoms have been substituted by fluorine, and R and R 'may be the same or different. An ink jet recording head characterized by being treated with a compound represented by the following formula:
以下、本発明を図面に従って具体的に説明する。 Hereinafter, the present invention will be specifically described with reference to the drawings.
尚、本発明に於ては、吐出オリフィス４付近に問題の
解決が絞られるものであるから、以後に於ては記録ヘッ
ドの吐出オリフィスを含む部分のみを抽出して詳述する
が、本発明の主旨に沿うものであれば、例えば第２図に
示した如き記録ヘッドに限定されることはなく、如何な
るタイプの記録ヘッドでも、吐出オリフィスより液体を
吐出させるものであれば本発明に適用されるものであ
る。又、第１図に示すように導管２の終端部が吐出オリ
フィス４を形成するタイプだけでなく、導管２の端部
に、所定径の穴の設けられた導管２とは別のオリフィス
板を付設して、吐出オリフィス４を形成したタイプの場
合も本発明に包含される。In the present invention, since the solution of the problem is limited to the vicinity of the ejection orifice 4, only the portion including the ejection orifice of the recording head will be extracted and described in detail hereinafter. The invention is not limited to, for example, the recording head as shown in FIG. 2 as long as it conforms to the gist of the invention, and any type of recording head is applicable to the present invention as long as it ejects liquid from the ejection orifice. Things. In addition to the type in which the end of the conduit 2 forms the discharge orifice 4 as shown in FIG. 1, an orifice plate different from the conduit 2 having a hole of a predetermined diameter is provided at the end of the conduit 2. The present invention also includes a type in which the discharge orifice 4 is additionally provided.
第１図は本発明の実施例で吐出オリフィスを多数並べ
たマルチヘッドの外観図である。該マルチヘッドはイン
ク溜めを有するガラス天板７とオリフィスを形成する感
光性樹脂層８と記録液を吐出オリフィスより吐出させる
ための手段である発熱体とを有する基板９を接着してつ
くられている。この図示例に於て吐出オリフィスを囲む
外壁面には撥液膜10が形成されている。上叙のように本
発明は吐出オリフィスを囲む記録ヘッド外表面を本発明
に特有の化合物で処理して撥液性にすることにより、記
録ヘッドにどの様な素材を選んでも安定なインクジェッ
ト記録をいつまでも行なうことができる。FIG. 1 is an external view of a multi-head in which a number of discharge orifices are arranged in an embodiment of the present invention. The multi-head is formed by bonding a glass top plate 7 having an ink reservoir, a photosensitive resin layer 8 forming an orifice, and a substrate 9 having a heating element serving as means for discharging a recording liquid from a discharge orifice. I have. In the illustrated example, a liquid-repellent film 10 is formed on an outer wall surface surrounding the discharge orifice. As described above, the present invention treats the outer surface of the recording head surrounding the discharge orifice with a compound unique to the present invention to make it lyophobic, thereby enabling stable ink jet recording regardless of the material selected for the recording head. You can do it forever.
次に、本発明で使用する化合物の好ましい具体例を示
す。Next, preferred specific examples of the compound used in the present invention will be shown.
本発明のヘッドは、あらかじめ作成されたヘッドを前
記の撥液剤の原液または希釈液中に浸漬するか、または
スプレー塗布あるいは蒸着、スパッタリングなど一般的
なコーティング法により作成することができる。或はヘ
ッド作成工程中の適当な段階で撥液処理を行なうことも
できる。前者の場合には特に、インク流路の内壁面に撥
液剤が廻りこまないようにあらかじめ流炉内に撥液剤と
混和しない液体とか固体を充填したり、気体をノズルか
ら噴出させながら撥液処理を行なう等の工夫が必要であ
る。 The head of the present invention can be prepared by dipping a previously prepared head in a stock solution or diluent of the liquid repellent, or by a general coating method such as spray coating, vapor deposition, or sputtering. Alternatively, the lyophobic treatment can be performed at an appropriate stage during the head making process. In the former case, in particular, a liquid or solid that is immiscible with the lyophobic agent is filled in the flow furnace in advance so that the lyophobic agent does not flow into the inner wall surface of the ink flow path, or the lyophobic treatment is performed while jetting gas from the nozzle. It is necessary to take measures such as performing
以下に実施例にて本発明の記録ヘッドの作成法につき
更に詳述する。Hereinafter, a method for manufacturing the recording head of the present invention will be described in more detail with reference to examples.
実施例１ 第１図の如きマルチノズルヘッドをまず作成した。次
に吐出オリフィスの外壁面を蒸留水でよく洗浄し、つづ
いてフレオンTF（ダイフロンS3 ダイキン工業（株））
で洗浄した。さらにUVO3洗浄槽にて３分間洗浄した。次
に各マルチヘッド内の流路に共通に蒸留水を入れた。撥
液処理剤としては の混和物の2wt％フレオンTF溶液を使用した。前記ヘッ
ドのオリフィス面を撥液処理剤に浸漬し引き上げて乾燥
させた。Example 1 First, a multi-nozzle head as shown in FIG. 1 was prepared. Next, the outer wall surface of the discharge orifice is thoroughly washed with distilled water, and then Freon TF (Dai Flon S3 Daikin Industries, Ltd.)
And washed. Further, it was washed in a UVO 3 washing tank for 3 minutes. Next, distilled water was commonly poured into the flow paths in each multi-head. As a liquid repellent treatment agent A 2 wt% Freon TF solution of the mixture was used. The orifice surface of the head was dipped in a lyophobic treatment agent, pulled up, and dried.
次に流路内に充填した蒸留水を除去し、ヘッドごと10
0℃のオーブン中に30分間投入し反応硬化させた。Next, distilled water filled in the flow path was removed, and 10
The mixture was put into an oven at 0 ° C. for 30 minutes to be cured.
実施例２ 実施例１と同様にマルチノズルヘッドを洗浄した。次
にヘッド内の流路にN2ガスを0.5kg/cm2,10/minの条件
で流し、実施例１と同じ撥液処理剤を長繊維綿製のハケ
に浸み込ませオリフィス面に塗布した。次にヘッドごと
100℃のオーブン中に30分間投入し、反応硬化をさせ
た。Example 2 A multi-nozzle head was cleaned in the same manner as in Example 1. Next, N 2 gas was flowed into the flow path in the head under the conditions of 0.5 kg / cm 2 and 10 / min, and the same lyophobic treatment agent as in Example 1 was immersed in a brush made of long-fiber cotton, and the orifice surface Applied. Next, for each head
It was placed in an oven at 100 ° C. for 30 minutes to cause reaction curing.
実施例３ 特開昭61−154947によって公知であるオリフィス形成
法、すなわちポジ型感光性樹脂フィルムでオリフィス形
成用の型を作り、液状光硬化性樹脂を注ぎ、該液状光硬
化性樹脂を硬化させた後、該ポジ型感光性樹脂を溶剤で
溶かしてノズルを形成する法において、該液状硬化性樹
脂を硬化させた後、すなわち該ポジ型感光性樹脂が吐出
オリフィスになる部位に充填されたままで、実施例１と
同様に洗浄し、これまた実施例１と同様の撥液処理剤に
浸漬し引き上げて乾燥させた。次にこのヘッドをそのま
ま100℃のオーブン中に30分間投入し、反応硬化させ
た。さらに、溶剤で該ポジ型感光性樹脂を溶かしインク
ジェットノズルヘッドを形成した。Example 3 An orifice forming method known from Japanese Patent Application Laid-Open No. 61-154947, that is, a mold for forming an orifice with a positive photosensitive resin film, a liquid photocurable resin is poured, and the liquid photocurable resin is cured. After that, in the method of dissolving the positive photosensitive resin with a solvent to form a nozzle, after the liquid curable resin is cured, that is, while the positive photosensitive resin is filled in a portion to be a discharge orifice, Then, the substrate was washed in the same manner as in Example 1, and immersed in the same liquid-repellent treating agent as in Example 1, pulled up, and dried. Next, the head was directly placed in an oven at 100 ° C. for 30 minutes to be cured by reaction. Further, the positive photosensitive resin was dissolved in a solvent to form an ink jet nozzle head.
次に本発明の化合物で処理したインクジェット記録ヘ
ッドの撥液性の耐久性を調べるために行なったインク浸
漬試験結果を表.1に示す。Next, Table 1 shows the results of an ink immersion test performed to examine the durability of the liquid repellency of the inkjet recording head treated with the compound of the present invention.
インク浸漬は60℃に加温し劣化促進して行った。使用
したインクの組成は黒色染料３部，ジエチレングリコー
ル20部，水77部で、評価はヘッドを構成している材料に
撥液処理したものの水との接触角を測定して行った。The ink immersion was performed by heating to 60 ° C. and accelerating the deterioration. The composition of the ink used was 3 parts of black dye, 20 parts of diethylene glycol, and 77 parts of water. The evaluation was performed by measuring the contact angle with water of the material constituting the head after the liquid repellency treatment.
以上示した様に本発明の化合物で撥液処理した基材の
水との接触角がインク浸漬３ケ月後も110度以下になら
ず、接触角測定の誤差を考慮すると事実上撥液性が半永
久的に持続すると言える。 As shown above, the contact angle with water of the base liquid treated with the compound of the present invention does not become 110 ° or less even after three months of ink immersion. It can be said that it lasts semipermanently.
次に本発明の撥液処理によって、図１に示したインク
ジェットヘッドのインク飛翔方向が正規の方向に定めら
れる様子について第３図に示す。FIG. 3 shows how the ink jetting direction of the ink jet head shown in FIG. 1 is determined to be a normal direction by the liquid repellent treatment of the present invention.
第３図上段（ａ）〜（ｄ）は撥液処理をしていない場
合について、下段（ａ′）〜（ｄ′）は同処理をした場
合について、インクの吐出の様子を模式的に示してい
る。（ａ）〜（ｄ）および（ａ′）〜（ｄ′）は、 （ａ），（ａ′）：メニスカス振動によるインク盛出し （ｂ），（ｂ′）：インクの戻り初期 （ｃ），（ｃ′）：インクの戻り後期 （ｄ），（ｄ′）：吐出 を示す。またθは接触角である。In FIG. 3, the upper part (a) to (d) schematically shows the case where the liquid-repellent treatment is not performed, and the lower part (a ′) to (d ′) schematically shows the state of the ink discharge when the same treatment is performed. ing. (A) to (d) and (a ') to (d') are as follows: (a), (a '): ink swelling due to meniscus vibration (b), (b'): initial return of ink (c) , (C '): late stage of ink return (d), (d'): ejection. Θ is a contact angle.
撥液処理の有無で接触角に大きな差がみられる。同処
理のない場合インクが重力に引かれて滞留インク11が下
方にでき、吐出に際してはこの滞留インクに液滴が引っ
張られるため、吐出方向が定まらなくなる。これに対し
本発明による処理を行った場合、滞留インクの部分が見
られず、従って液滴は安定して一定方向に飛ぶ。There is a large difference in the contact angle between the presence and absence of the liquid repellent treatment. In the absence of this process, the ink is attracted by gravity and the stagnant ink 11 is formed downward. At the time of ejection, droplets are pulled by the stagnant ink, so that the ejection direction cannot be determined. On the other hand, when the processing according to the present invention is performed, no portion of the staying ink is seen, and therefore, the droplet stably flies in a certain direction.
この様に本発明の撥液処理を施した上記マルチヘッド
の吐出観察、印字試験を行ったところ、処理をしないヘ
ッドでは飛翔方向不安定や不吐出が頻繁に起きた条件す
なわち吐出信号印加周波数4KHz,全ノズル（48本）同時
駆動でも常時所定の方向に安定した吐出が行えた。又、
印字物も縦線のヨレ、ベタ印字での白ヌケ等なく良好な
ものが得られた。As described above, when the ejection observation and the printing test of the multi-head subjected to the liquid repellent treatment of the present invention were performed, the condition in which the flight direction was unstable or non-ejection frequently occurred in the head without treatment, that is, the ejection signal application frequency of 4 KHz Therefore, even when all the nozzles (48 nozzles) were simultaneously driven, stable ejection was always performed in a predetermined direction. or,
Good printed matter was obtained without vertical line distortion and white spots in solid printing.
以上説明したように、本発明の化合物を常時所定の方
向に実質的に均一液体量を以て安定した吐出が行え、高
速記録に充分適用され得る記録ヘッドを容易な処理で提
供する。さらに本発明では記録ヘッドの素材を選ばない
利点もある。As described above, it is possible to provide a recording head which can perform stable ejection of the compound of the present invention in a predetermined direction at all times with a substantially uniform liquid amount and can be sufficiently applied to high-speed recording with easy processing. Further, the present invention has an advantage that the material of the recording head is not selected.
第１図は本発明によるマルチ型式の記録ヘッドの外観斜
視図、第２図は本発明に係るインクジェット記録ヘッド
の典型的な例を示す模式的説明図、第３図は撥液処理が
インク飛翔方向に及ぼす影響について示した図である。 1:記録ヘッド 2:導管 3:ピエゾ素子 4:吐出オリフィス 5:パイプ 6:流路 7:天板ガラス 8:感光性樹脂 9:Si基板 10:撥液膜 11:滞留インクFIG. 1 is an external perspective view of a multi-type recording head according to the present invention, FIG. 2 is a schematic explanatory view showing a typical example of an ink jet recording head according to the present invention, and FIG. FIG. 7 is a diagram illustrating an effect on a direction. 1: Recording head 2: Conduit 3: Piezo element 4: Discharge orifice 5: Pipe 6: Flow path 7: Top glass 8: Photosensitive resin 9: Si substrate 10: Liquid repellent film 11: Stagnant ink
Claims (2)
の一端を吐出口として前記インクの小滴を吐出、飛翔さ
せ、このインク小滴の被記録面への付着を以て記録を行
うインクシェット記録ヘッドに於て、少なくとも前記吐
出口の周縁部が式（Ｉ） Ｒ−Si（NH2）３ （Ｉ） または式（II） Ｒ−Si（NH2）２−NH−Si（NH2）２−Ｒ′ （II） （式ＩおよびII中、ＲおよびＲ′はフッ素によって１以
上の水素が置換された炭化水素基を示し、ＲとＲ′は互
いに同じでも異なっていてもよい。） で表される化合物で処理されていることを特徴とするイ
ンクジェット記録ヘッド。An ink flow path has a fine hole, and one end of the fine hole is used as a discharge port to discharge and fly a small droplet of the ink, and recording is performed by attaching the small droplet of the ink to a recording surface. In the ink-jet recording head to be performed, at least the peripheral portion of the ejection port has the formula (I) R-Si (NH 2 ) 3 (I) or the formula (II) R-Si (NH 2 ) 2 -NH-Si ( NH 2 ) 2 —R ′ (II) (In formulas I and II, R and R ′ each represent a hydrocarbon group in which one or more hydrogens are substituted by fluorine, and R and R ′ may be the same or different. An ink jet recording head, which is treated with a compound represented by the following formula:
ドにおいて吐出口の周縁部の材料に有機材料が含まれる
インクジェット記録ヘッド。2. An ink jet recording head according to claim 1, wherein the material of the peripheral portion of the discharge port contains an organic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18966188A JP2593922B2 (en) | 1988-07-30 | 1988-07-30 | Ink jet recording head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18966188A JP2593922B2 (en) | 1988-07-30 | 1988-07-30 | Ink jet recording head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0239944A JPH0239944A (en) | 1990-02-08 |
| JP2593922B2 true JP2593922B2 (en) | 1997-03-26 |
Family
ID=16245057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18966188A Expired - Lifetime JP2593922B2 (en) | 1988-07-30 | 1988-07-30 | Ink jet recording head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2593922B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6109728A (en) * | 1995-09-14 | 2000-08-29 | Ricoh Company, Ltd. | Ink jet printing head and its production method |
| US6344526B1 (en) | 1998-03-10 | 2002-02-05 | Canon Kabushiki Kaisha | Fluorine-containing epoxy resin composition, and surface modification process, ink jet recording head and ink jet recording apparatus using same |
| US6448346B1 (en) | 1998-03-10 | 2002-09-10 | Canon Kabushiki Kaisha | Fluorine-containing epoxy resin composition, and surface modification process, ink jet recording head and ink jet recording apparatus making use of the same |
| US6472129B2 (en) | 1998-03-10 | 2002-10-29 | Canon Kabushiki Kaisha | Fluorine-containing epoxy resin composition, and surface modification process, ink jet recording head and ink jet recording apparatus making use of the same |
| US6586495B1 (en) | 1999-09-20 | 2003-07-01 | Canon Kabushiki Kaisha | Alkylsiloxane-containing epoxy resin composition, surface modifying method using the same, ink-jet recording head and liquid-jet recording apparatus |
| CN1208388C (en) | 2002-01-17 | 2005-06-29 | 佳能株式会社 | Epoxy resin composition, surface treatment method, liquid jetting record head and liquid jetting recorder |
| US6992117B2 (en) | 2002-01-17 | 2006-01-31 | Canon Kabushiki Kaisha | Epoxy resin composition, surface treatment method, liquid-jet recording head and liquid-jet recording apparatus |
| US6846520B2 (en) | 2002-01-17 | 2005-01-25 | Canon Kabushiki Kaisha | Epoxy resin composition, surface treatment method, liquid-jet recording head and liquid-jet recording apparatus |
| US6869541B2 (en) | 2002-02-21 | 2005-03-22 | Canon Kabushiki Kaisha | Epoxy resin composition, surface treating method, ink-jet recording head, and ink-jet recording apparatus |
-
1988
- 1988-07-30 JP JP18966188A patent/JP2593922B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0239944A (en) | 1990-02-08 |
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