JPS62220344A - Ceramics nozzle for ink jet printer - Google Patents
Ceramics nozzle for ink jet printerInfo
- Publication number
- JPS62220344A JPS62220344A JP6419186A JP6419186A JPS62220344A JP S62220344 A JPS62220344 A JP S62220344A JP 6419186 A JP6419186 A JP 6419186A JP 6419186 A JP6419186 A JP 6419186A JP S62220344 A JPS62220344 A JP S62220344A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- resistance
- ink jet
- jet printer
- ceramics
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 abstract description 6
- 229910052581 Si3N4 Inorganic materials 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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
- B41J2/14—Structure thereof only for on-demand ink jet heads
-
- 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
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/03—Specific materials used
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、近時普及しはじめたインクジェットプリンタ
用のノズルに関し、更に詳しくは、ノズル孔の摩耗が小
さいので鮮明な印字を長期に亘って可能とするインクジ
ェットプリンタ用のノズルに関する。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to a nozzle for inkjet printers, which has recently become popular. This invention relates to a nozzle for inkjet printers that enables long-term use.
（、従来の技術）
最近普及しはじめたインクジェットプリンタのノズルは
、直径５〜６ミリφ、厚みが１〜５■のディスクの中心
に高い精度でミクロンオーダーの微細孔を穿設したもの
である。このノズルはプリンタの印字部先端に組込まれ
、穿設孔からインクが噴出して印字動作を行なう。(Prior art) The nozzles of inkjet printers, which have recently become popular, have a micron-order hole drilled with high precision in the center of a disk with a diameter of 5 to 6 mm and a thickness of 1 to 5 cm. . This nozzle is installed at the tip of the printing section of the printer, and ink is ejected from the perforated hole to perform the printing operation.
ノズルの材質としては、従来からソーダガラスのような
ガラス材；または、ステンレススティールのような金属
材；が使われている。As the material of the nozzle, glass materials such as soda glass; or metal materials such as stainless steel are conventionally used.
（発明が解決しようとする問題点）
しかしながら、上記した材質のノズルには次のような一
長一短がある。まず金属材のノズルの場合、ある種の化
学薬品であるインクによってノズル孔に錆が発生し、ノ
ズル孔の径が設計基準から外れてしまうことにより印字
の大きさが変動したり、鮮明さが消失するなどの問題で
ある。また、連続して印字動作を°行なわない場合には
、発生している錆の影響と考えられるが、ノズル孔が目
づまりする。そしてこの目づまりをとり除くために、例
えば希塩酸、希硝酸のような薬品でインクを洗浄するこ
とが必要になるが、このとき薬品によってノズル孔の損
傷することがある。(Problems to be Solved by the Invention) However, nozzles made of the above-mentioned materials have the following advantages and disadvantages. First, in the case of metal nozzles, rust occurs in the nozzle hole due to ink, which is a type of chemical, and the diameter of the nozzle hole deviates from the design standard, causing the print size to fluctuate and the sharpness to be reduced. Problems such as disappearing. Furthermore, if printing operations are not performed continuously, the nozzle holes become clogged, which is thought to be due to the rust that has formed. In order to remove this clogging, it is necessary to wash the ink with a chemical such as dilute hydrochloric acid or dilute nitric acid, but at this time, the nozzle hole may be damaged by the chemical.
一方、ガラス質のノズルの場合、金属質のもののような
ノズル孔への発錆や目づまり現象は起らないが、しかし
、その機械的強度は小さいのでプリンタの印字部に組込
む際に往々にして破損したり、またはプリンタの動作時
にその振動等によって損壊したりすることがある。また
、熱衝撃に弱いため、例えば高速印字動作時にインクと
ノズル孔との間に発生する摩擦熱によってしばしばノズ
ルの損壊を招くことがある。On the other hand, glass nozzles do not cause rust or clogging of the nozzle holes like metal ones, but their mechanical strength is low, so they are often difficult to incorporate into the printer's printing section. The printer may be damaged due to vibrations during printer operation. Furthermore, since it is susceptible to thermal shock, the nozzle may often be damaged due to frictional heat generated between the ink and the nozzle hole during, for example, high-speed printing operations.
このように、従来のノ、ズルには一長一短があり、いず
れのノズルの場合も使用寿命の点では短命であった。As described above, conventional nozzles and nozzles have advantages and disadvantages, and all nozzles have a short service life.
本発明は上記したそれぞれの問題を解消し、鮮明な印字
動作を長期間に亘って可能たらしめるインクジェットプ
リンタ用ノズルの提供を目的とする。An object of the present invention is to provide a nozzle for an inkjet printer that solves each of the above-mentioned problems and enables clear printing operations over a long period of time.
［発明の構成］
（問題点を解決するための手段と作用）本発明者は上記
の目的を達成し得る材質に関し鋭意探索する過程で、ノ
ズルとして耐摩耗性、耐薬品性２機械的強度の点におい
てもまた耐熱衝撃性においても優れているセラミックス
材を用いると、上記した金属質またはガラス質の欠点を
いずれも解消し得るとの事実を見出し、本発明のノズル
を開発するに到った。[Structure of the Invention] (Means and Actions for Solving the Problems) In the process of intensively searching for materials that can achieve the above objectives, the present inventor has developed materials that have wear resistance, chemical resistance, and mechanical strength as a nozzle. The inventors discovered that the above-mentioned drawbacks of metal or glass materials can be overcome by using ceramic materials, which are excellent in terms of thermal shock resistance and thermal shock resistance, and have developed the nozzle of the present invention. .
すなわち、本発明のインクジェットプリンタ用のノズル
は、その材質がセラミックスで構成されていることを特
徴とする。That is, the nozzle for an inkjet printer of the present invention is characterized in that its material is made of ceramics.
ノズルの形状は、従来からのそれと変ることはない、す
なわち、中心に高精度で微細孔が穿設されたディスクで
ある。The shape of the nozzle is the same as the conventional one, that is, it is a disk with a fine hole drilled in the center with high precision.
適用するセラミックスは格別限定されるものではないが
、例えば、Ｓｉ３ Ｎ４ 、ＡｌＩ３０３ 。The ceramics to be applied are not particularly limited, but examples include Si3N4 and AlI303.
ＺｒＯ２をあげることができる。とくに、Ｓｉ３Ｎ４は
耐摩耗性、耐蝕性の点で優れているので好適である。ZrO2 can be mentioned. In particular, Si3N4 is suitable because it has excellent wear resistance and corrosion resistance.
本発明のノズルは次のようにして製造することができる
０例えば、Ｓｉ３Ｎ４ノズルの場合、所定粒径範囲のＳ
ｉ３Ｎ４粉末に焼結助剤としてＹ２ｏ、粉末を配合し、
全体をボールミル等で充分に混合する。これら原料粉の
粒径はｏ、ｏｉ〜０．２−程度であることが好ましく、
あまり粗い粉は焼結体の表面が粗くなるので不都合であ
る。また焼結助剤は１〜ｌＯ重量％程度配合されること
が好ましい。The nozzle of the present invention can be manufactured as follows. For example, in the case of a Si3N4 nozzle, S of a predetermined particle size range
Blending Y2O and powder as a sintering aid to i3N4 powder,
Thoroughly mix the whole mixture using a ball mill or the like. The particle size of these raw material powders is preferably about o, oi to 0.2-0.
Powder that is too coarse is disadvantageous because the surface of the sintered body becomes rough. The sintering aid is preferably blended in an amount of about 1 to 10% by weight.
この混合粉末に例えばパラフィンワックスのようなバイ
ンダ成分を所定量添加して混合し、それを加圧成形して
グリーン成形体とする。成形圧は７００〜１０００ｋｇ
／ｃｍ２程度が好ましい。A predetermined amount of a binder component such as paraffin wax is added to this mixed powder and mixed, and the mixture is press-molded to form a green molded body. Molding pressure is 700-1000kg
/cm2 is preferable.
得られた成形体を切削加工してノズル前駆体とし、これ
を窒素雰囲気中、１７００−１８００℃で０．５〜ｌＯ
時間加熱して焼結する。The obtained molded body is cut into a nozzle precursor, which is heated at 1700-1800°C in a nitrogen atmosphere at 0.5 to 10
Heat for an hour to sinter.
ついで、焼結体に精密加工を施して、所定の寸法精度に
仕上げる。Next, the sintered body is subjected to precision processing to achieve a predetermined dimensional accuracy.
このとき、中心の穿設孔すなわちノズル孔の表面は鏡面
加工仕上げとすることが好ましい、仮にインクが付着し
ても容易に除去できるからである。At this time, it is preferable that the surface of the central perforation hole, that is, the nozzle hole, be mirror-finished, because even if ink adheres to it, it can be easily removed.
（実施例） 平均粒径０．１−の５ｉ３Ｎ４８９重量部。(Example) 489 parts by weight of 5i3N with an average particle size of 0.1-.
Ｙ２Ｏ３５重量部、ＡｆＬ２０３３重量部、Ａ１Ｎ３重
量部とをボールミルで混合した。得られた混合粉を型内
に充填し、ｌ ＯＯＯｋｇ／ ｃｍ２の圧で成形し、１
８００’Ｃの窒素雰囲気中で１時間焼成した。直径５層
層φ厚み１ｍｍ小孔径０．０５履履φの焼結ディスクが
得られた。35 parts by weight of Y2O, 33 parts by weight of AfL, and 3 parts by weight of A1N were mixed in a ball mill. The obtained mixed powder was filled into a mold and molded at a pressure of 1 OOO kg/cm2.
It was fired for 1 hour in a nitrogen atmosphere at 800'C. A sintered disk having a diameter of 5 layers, a thickness of 1 mm, and a small hole diameter of 0.05 mm was obtained.
なお、このディスクから試験片を切り出し、その特性を
測定したところ、焼結密度：３．２５゜硬度（Ｈｖ）：
１５００−１７００．曲げ強度８０ Ｎ１００ｋｇ／ｓ
■２であった。In addition, when a test piece was cut out from this disk and its characteristics were measured, the sintered density: 3.25° Hardness (Hv):
1500-1700. Bending strength 80 N100kg/s
■It was 2.
ディスクを精密加工して、直径５±０．０１ｓｎφ、厚
み１±０．１ｓｍ、小孔径１０ｆ０．５Ｍのノズルとし
た。The disk was precisely machined to form a nozzle with a diameter of 5±0.01 snφ, a thickness of 1±0.1 sm, and a small hole diameter of 10f0.5M.
このノズルをプリンタの印字部に組込み以下の条件で印
字試験を行なった。This nozzle was installed in the printing section of a printer and a printing test was conducted under the following conditions.
インクの噴出速度：５００／ＣＰｓの連続運転である。Continuous operation at an ink ejection speed of 500/CPs.
印字の鮮明さの変化、印字の大きさの変化等を観察して
ノズル孔の摩耗度合を推定し、全体としての使用寿命を
判断した。The degree of wear of the nozzle hole was estimated by observing changes in print clarity, changes in print size, etc., and the overall service life was determined.
なお、比較のために、同形状のソーダガラス製ノズル、
ステンレススティール製ノズルについても同じような試
験を行ない、その評価を下した。For comparison, a soda glass nozzle with the same shape,
A similar test was conducted on a stainless steel nozzle and the results were evaluated.
以上の結果を一括して表に示した。The above results are summarized in the table.
［発明の効果］
以上の説明で明らかなように、本発明のノズルはまず耐
薬品性に優れているのでノズル孔の錆、目づまり現象は
皆無となり、また耐摩耗性が優れているので噴出するイ
ンクによるノズル孔の摩耗は極めて小となる。更に、そ
の機械的強度は大きいので印字部への組込み時に起り易
い破損などはなくなる。[Effects of the Invention] As is clear from the above explanation, the nozzle of the present invention has excellent chemical resistance, so there is no rust or clogging of the nozzle hole, and it also has excellent wear resistance, so no jetting The abrasion of the nozzle hole caused by the ink is extremely small. Furthermore, since its mechanical strength is high, damage that is likely to occur when it is assembled into a printing section is eliminated.
したがって、インクジェットプリンタにおいて長期間に
亘って鮮明な印字動作を可能とするのでその工業的価値
は大である。Therefore, it is of great industrial value because it enables clear printing operations over a long period of time in an inkjet printer.
Claims (1)
その材質がセラミックスで構成されていることを特徴と
するインクジェットプリンタ用セラミックスノズル。A nozzle incorporated into an inkjet printer,
A ceramic nozzle for an inkjet printer, characterized in that the material thereof is made of ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6419186A JPS62220344A (en) | 1986-03-24 | 1986-03-24 | Ceramics nozzle for ink jet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6419186A JPS62220344A (en) | 1986-03-24 | 1986-03-24 | Ceramics nozzle for ink jet printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62220344A true JPS62220344A (en) | 1987-09-28 |
Family
ID=13250925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6419186A Pending JPS62220344A (en) | 1986-03-24 | 1986-03-24 | Ceramics nozzle for ink jet printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62220344A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0823706A1 (en) * | 1996-08-09 | 1998-02-11 | Eastman Kodak Company | Zirconia ceramic as a digital storage media |
| US7578575B2 (en) | 1998-07-21 | 2009-08-25 | Ricoh Company, Ltd. | Liquid jet apparatus using a fine particle dispersion liquid composition |
-
1986
- 1986-03-24 JP JP6419186A patent/JPS62220344A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0823706A1 (en) * | 1996-08-09 | 1998-02-11 | Eastman Kodak Company | Zirconia ceramic as a digital storage media |
| US7578575B2 (en) | 1998-07-21 | 2009-08-25 | Ricoh Company, Ltd. | Liquid jet apparatus using a fine particle dispersion liquid composition |
| US7578577B2 (en) | 1998-07-21 | 2009-08-25 | Ricoh Company, Ltd. | Liquid jet apparatus using a fine particle dispersion liquid composition |
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