JPS6054859A - Ink jet nozzle for printer - Google Patents
Ink jet nozzle for printerInfo
- Publication number
- JPS6054859A JPS6054859A JP16172183A JP16172183A JPS6054859A JP S6054859 A JPS6054859 A JP S6054859A JP 16172183 A JP16172183 A JP 16172183A JP 16172183 A JP16172183 A JP 16172183A JP S6054859 A JPS6054859 A JP S6054859A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- nozzle
- ink liquid
- face
- tip end
- 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.)
- Pending
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
Abstract
Description
【発明の詳細な説明】
本発明は、例えばＯＡ機器等のプリント用インクジェッ
トノズルの改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in inkjet nozzles for printing, such as in office automation equipment.
０Ａｌａ器のプリント用インクジェットノズルは、振動
板の１回の振幅作用によりインクノズルの噴出孔よりイ
ンク液を一滴頃出し、これを１ｉｉｉ記噴出孔の先方周
囲のインク液案内装置により真直ぐ番ご案内して用紙の
所要位置に点着してプリントするものである。The printing inkjet nozzle of the 0Ala machine ejects a drop of ink from the nozzle's ejection hole by one vibration action of the diaphragm, and guides it straight by the ink liquid guiding device around the tip of the ejection hole. It is printed by dotting the paper at the desired position on the paper.
ところで、０Ａｔｆｆｉ器等のプリント用インクジェッ
トノズルには次のような機能がめられる。Incidentally, an inkjet nozzle for printing such as an 0Atffi device has the following functions.
■インク液の濡れが無いこと。■There is no wetting of the ink liquid.
■加工性及び加工精度が良いこと。■Good workability and processing accuracy.
■耐蝕性を有すること。■Have corrosion resistance.
■流体圧力に対して寸法変化が無いこと。■No dimensional changes due to fluid pressure.
この中でもとりわけインクｔ１νの濡れが、用紙にプリ
ントされるインク液の点着寸法２点着楕度に重要な影響
を与えるので、インク液の濡れの無いインクジェットノ
ズルが要求されている。Among these, the wetting of the ink t1ν has an important influence on the dot size and two-dot ellipse of the ink printed on the paper, so an inkjet nozzle that does not get wet with the ink is required.
然るにこれまでのインクシェツトノズルに於りるインク
ツスルには種々のものが３〕す、夫々一長一短がある。However, there are various types of ink threads used in conventional ink sheet nozzles, each of which has advantages and disadvantages.
例えば金めつきしたインクノズルは、耐蝕性を有するが
、流体圧力に弱い。超硬、宝石（サファイヤ、ルビー）
、セラミック等より成るインクノズルは、耐蝕性を有し
、流体圧力にλ・１して寸法変化が無いが、加工がしに
くく高価である。For example, gold-plated ink nozzles are corrosion resistant but sensitive to fluid pressure. Carbide, gemstones (sapphire, ruby)
An ink nozzle made of , ceramic, etc. has corrosion resistance and does not change in size depending on fluid pressure by λ·1, but it is difficult to process and expensive.
ステンレス鋼より成る通電のインクツスルは、加工性及
び加工精度は良いが、インク液の演れが人である。Electrically-carrying ink threads made of stainless steel have good workability and processing accuracy, but the playability of the ink liquid is a problem.
インクノズルは、インク〆Ｉｋの濡れか大きいと、噴出
孔よりインク液が射出された際、液滴が噴出孔の先端周
縁に付着残留するので、次のインク液が射出されると、
そのインク液は方向を変えて噴出したり、或いは噴出す
るインク液が増えたりして、用紙にプリントされるイン
ク液の点着寸法。If the ink nozzle is highly wet, when the ink liquid is ejected from the ejection hole, droplets will remain attached to the periphery of the tip of the ejection hole, so when the next ink liquid is ejected,
The ink liquid is ejected in different directions, or the ejected ink liquid increases, and the size of the ink liquid that is printed on the paper is the dot size.
点着位置の精度に狂いが生じる。The accuracy of the spotting position becomes inconsistent.
この為、インクノズルの先端に突起を設けて、インク液
の濡れを少なくすることが試みられているが、加工上突
起尖端の肉厚を零にはできず、一般に０．０２ｍｍ以上
となるので、インク液の濡れの問題は解消できない。For this reason, attempts have been made to reduce wetting of the ink liquid by providing a protrusion at the tip of the ink nozzle, but due to processing, the thickness of the tip of the protrusion cannot be reduced to zero, and it is generally 0.02 mm or more. , the problem of ink liquid wetting cannot be solved.
本発明は斯かる実情に鮨みなされたものであり、インク
液の濡れが無く、耐蝕性を有し、加工性及び加工精度の
良いインクジェットノズルを提供せんとするものである
。The present invention has been developed in light of these circumstances, and aims to provide an inkjet nozzle that is free from ink liquid wetting, has corrosion resistance, and has good workability and processing accuracy.
本発明のインクジェットノズルは、タンタル製のインク
ノズルの先端面及びインクノズルの噴出孔の内面の内の
、少なくとも前記インクノズルの先端面にタンクルの酸
化薄膜が被膜されていることを特徴とするものである。The inkjet nozzle of the present invention is characterized in that at least the tip surface of the ink nozzle, of the tip surface of the ink nozzle made of tantalum and the inner surface of the ejection hole of the ink nozzle, is coated with a thin oxide film of tankle. It is.
このように本発明のインクジェットノズルば、タンタル
製のインクノズルの少なくとも先な１１１面にタンタル
の酸化’７５１１９か被膜されているので、先端面の平
１１キ鏡面度が向上せしめられ、インク液の濡れが防止
される。As described above, in the inkjet nozzle of the present invention, since at least the tip 111 surface of the tantalum ink nozzle is coated with tantalum oxide '75119, the flatness of the tip surface is improved and the ink liquid is Wetting is prevented.
特に先端面のみならず、噴出孔の内面にもタンクルの酸
化薄膜を被覆した場合には、噴出孔でのインク液の濡れ
性が抑制されるので、噴出孔からの過剰なインク液の噴
出が無くなり、インク液の先端面での広がりが完全に防
止され、噴出されるインク液は噴出孔の先方周囲のイン
ク液案内装置により真直ぐに案内されて用紙の所要位置
にプリン［・されるインク液の点着寸法１点着位置の精
度が高いものとなる。In particular, if the thin oxide film of Tankle is coated not only on the tip surface but also on the inner surface of the ejection hole, the wettability of the ink liquid at the ejection hole is suppressed, so that excessive ink liquid is not ejected from the ejection hole. The ink liquid is completely prevented from spreading on the leading edge surface, and the ejected ink liquid is guided straight by the ink liquid guide device around the tip of the ejection hole, and the ink liquid is printed at the desired position on the paper. The accuracy of the one-point landing position is high.
次に本発明のインクジエソ１−ノスルの具体的な実施例
と従来例について説明する、。Next, specific examples and conventional examples of the ink dieso 1-nosul of the present invention will be described.
〔実施例１〕 第１゛図に示す如くタンタルより成る厚さＱ、３ｍｍ。[Example 1] As shown in Fig. 1, it is made of tantalum and has a thickness Q of 3 mm.
直径１０ｍｍの円形のインクノズル板ｌにイしく早２０
０μの円錐状インク液案内孔２とこれに続いて孔径４０
μ、長さ４０μのインク液噴出孔３を穿設して成るイン
クノズル４の先端面５に陽極酸化により厚さ３μ′ｌ″
ａＯ１，の薄膜６を被覆したインクジェットノズル。A circular ink nozzle plate l with a diameter of 10mm
0μ conical ink liquid guide hole 2 followed by hole diameter 40
The tip surface 5 of the ink nozzle 4, which has an ink ejection hole 3 with a length of 40μ, is anodized to a thickness of 3μ′l″.
An inkjet nozzle coated with a thin film 6 of aO1.
〔実施例２〕
実施例１と同一のインクノズル４の先端面５゜インク液
案内孔２及びインク液噴出孔３の内面に陽極酸化により
第２図に示す如＜ｊ！＠さ３μの’１’ ａ ＯＳの薄
膜６を被覆したインクジェットノズル。[Example 2] The tip surface 5° of the ink nozzle 4, which is the same as in Example 1, and the inner surfaces of the ink liquid guide hole 2 and the ink liquid jet hole 3 are anodized as shown in FIG. @An inkjet nozzle coated with a thin film 6 of '1' a OS with a diameter of 3μ.
第１図に示されるインクノズル４に於い°ζ、先端面５
及びインク液噴出孔３の内面に、タンタルの酸化薄膜が
被覆してないインクジェットノズル。°ζ in the ink nozzle 4 shown in Fig. 1, the tip surface 5
and an inkjet nozzle in which the inner surface of the ink liquid ejection hole 3 is not coated with a tantalum oxide thin film.
然してこれら実施例１．２及び従来例のインクジェット
ノズルで１０００万回インク液を噴出し、インクノズル
４の先端面５でのインク液の濡れ具合及び用紙にプリン
トされたインク１１にの点着寸法。However, when the inkjet nozzles of Example 1.2 and the conventional example were used to eject ink liquid 10 million times, the degree of wetting of the ink liquid on the tip surface 5 of the ink nozzle 4 and the dot size of the ink 11 printed on the paper were determined. .
点着位置を測定した処、下記の表に示すような結果を謁
た。When we measured the spotting position, we received the results shown in the table below.
［−
−
上記の表で明らかなように実施例１．２のインクジェッ
トノズルは、従来例のインクジエソ１−ノズルに比し、
先端面でのインク液の広がりが著しく少なく且つばらつ
きの少ないことが判る。また実施例１．２のインクジエ
・）１−ノズルから噴出されて用キＩＬにプリントされ
たインク液の点着寸法の誤差は、従来例のそれに比し著
しく小さいことが判る。さらに実施例１，２のインクジ
エ・ノドノズルから噴出されて用紙にプリントされたイ
ンク液の点着位置の誤差は、従来例のそれに比し著しく
小さいことが判る。[-- As is clear from the table above, the inkjet nozzle of Example 1.2 has a
It can be seen that the spread of the ink liquid on the tip surface is extremely small and there is little variation. Furthermore, it can be seen that the error in the spot size of the ink liquid ejected from the ink jet nozzle of Example 1.2 and printed on the printing key IL is significantly smaller than that of the conventional example. Furthermore, it can be seen that the error in the spotting position of the ink liquid ejected from the inkjet nozzle and printed on the paper in Examples 1 and 2 is significantly smaller than that in the conventional example.
以上の説明で判るように本発明のインクジエ・ノドノズ
ルは、少なくともインクノズルの先端面にタンクルの酸
化薄膜を被覆しであるので一１先端面でのインク液の濡
れが抑えられ、インク液の広がりが完全に防止される。As can be seen from the above explanation, the inkjet nozzle of the present invention has at least the tip surface of the ink nozzle coated with a thin film of tank oxide, so that wetting of the ink liquid on the tip surface is suppressed and the ink liquid spreads. is completely prevented.
従ってインクジェットノズルからはインク液が真直ぐに
噴出されるので、用紙にプリントされたインク液の点着
寸法５点着位置は精度の高いものとなる。また本発明の
インクジエソトノスルに於しするインクノズルは金属製
より成るので、加工性及び加工精度が高く、しかも前途
の如く先端面にタンタルの酸化薄膜が被覆されているの
で、耐蝕性が高く長寿命である。Therefore, since the ink liquid is ejected straight from the inkjet nozzle, the five-dot landing position of the ink liquid printed on the paper is highly accurate. In addition, since the ink nozzle in the inkjet nozzle of the present invention is made of metal, it has high workability and processing precision, and as previously mentioned, the tip surface is coated with a tantalum oxide thin film, so it has excellent corrosion resistance. It is expensive and has a long life.
第１．２図は夫々本発明のインクジェットノズルに於り
るインクノズルの要部縦断面図である。
１−−一−−−インクノズル板、２−−−−インク液案
内孔、３−−−−−−インク７夜噴出孔、４ ：−−−
−インクノズル、５−−−−ｍ−先端面、６−−−−−
タンタルの酸化薄膜。
出願人 田中貴金属工業株式会社
第１図
第２図1.2 are longitudinal cross-sectional views of essential parts of the ink jet nozzle of the present invention. 1--1--Ink nozzle plate, 2--Ink liquid guide hole, 3-----Ink ejection hole, 4:----
- Ink nozzle, 5 ----m - Tip surface, 6 -------
Tantalum oxide thin film. Applicant Tanaka Kikinzoku Kogyo Co., Ltd. Figure 1 Figure 2
Claims (1)
ル製のインクノズルの先端面及びインクノズルの噴出孔
の内面の内の、少なくとも前記インクノズルの先端面に
タンタルの酸化Ｍ股が被＋Ｗされていることを特徴とす
るプリント用インクジエ・ノドノズル。(also in printing inkjet nozzles), at least the tip surface of the ink nozzle, of the tip surface of the tantalum ink nozzle and the inner surface of the ejection hole of the ink nozzle, is coated with tantalum oxide M crotch. An inkjet nozzle for printing that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16172183A JPS6054859A (en) | 1983-09-02 | 1983-09-02 | Ink jet nozzle for printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16172183A JPS6054859A (en) | 1983-09-02 | 1983-09-02 | Ink jet nozzle for printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6054859A true JPS6054859A (en) | 1985-03-29 |
Family
ID=15740613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16172183A Pending JPS6054859A (en) | 1983-09-02 | 1983-09-02 | Ink jet nozzle for printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054859A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7686421B2 (en) | 2002-07-10 | 2010-03-30 | Seiko Epson Corporation | Fluid injection head, method of manufacturing the injection head, and fluid injection device |
| US20130065017A1 (en) * | 2011-09-09 | 2013-03-14 | Kurt D. Sieber | Microfluidic device with multilayer coating |
| CN103895348A (en) * | 2012-12-27 | 2014-07-02 | 精工爱普生株式会社 | Nozzle plate, liquid ejecting head and liquid ejecting apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50102211A (en) * | 1974-01-09 | 1975-08-13 | ||
| JPS5590377A (en) * | 1978-12-27 | 1980-07-08 | Canon Inc | Liquid jet recording head |
| JPS57107848A (en) * | 1980-12-26 | 1982-07-05 | Ricoh Co Ltd | Ink jet nozzle plate |
-
1983
- 1983-09-02 JP JP16172183A patent/JPS6054859A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50102211A (en) * | 1974-01-09 | 1975-08-13 | ||
| JPS5590377A (en) * | 1978-12-27 | 1980-07-08 | Canon Inc | Liquid jet recording head |
| JPS57107848A (en) * | 1980-12-26 | 1982-07-05 | Ricoh Co Ltd | Ink jet nozzle plate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7686421B2 (en) | 2002-07-10 | 2010-03-30 | Seiko Epson Corporation | Fluid injection head, method of manufacturing the injection head, and fluid injection device |
| US20130065017A1 (en) * | 2011-09-09 | 2013-03-14 | Kurt D. Sieber | Microfluidic device with multilayer coating |
| US8840981B2 (en) * | 2011-09-09 | 2014-09-23 | Eastman Kodak Company | Microfluidic device with multilayer coating |
| CN103895348A (en) * | 2012-12-27 | 2014-07-02 | 精工爱普生株式会社 | Nozzle plate, liquid ejecting head and liquid ejecting apparatus |
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