JPH0263840A - Ink jet head - Google Patents
Ink jet headInfo
- Publication number
- JPH0263840A JPH0263840A JP21750488A JP21750488A JPH0263840A JP H0263840 A JPH0263840 A JP H0263840A JP 21750488 A JP21750488 A JP 21750488A JP 21750488 A JP21750488 A JP 21750488A JP H0263840 A JPH0263840 A JP H0263840A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- face
- head
- nozzle end
- nozzle
- 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
- 238000011282 treatment Methods 0.000 claims abstract description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000010894 electron beam technology Methods 0.000 claims abstract description 4
- 239000002952 polymeric resin Substances 0.000 claims description 14
- 229920003002 synthetic resin Polymers 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000010306 acid treatment Methods 0.000 claims description 3
- 238000003851 corona treatment Methods 0.000 claims description 3
- 238000009832 plasma treatment Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- 229920005989 resin Polymers 0.000 abstract description 14
- 239000011347 resin Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229920001230 polyarylate Polymers 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229920002492 poly(sulfone) Polymers 0.000 description 3
- 239000004431 polycarbonate resin Substances 0.000 description 3
- 229920005668 polycarbonate resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000630 rising effect Effects 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
- B41J2/16—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)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、インク滴を飛翔させ記録媒体上に画像を形成
するインクジェット記録のうち、インクオンデマンド型
インクジェットヘッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to an ink-on-demand type inkjet head of inkjet recording that forms an image on a recording medium by ejecting ink droplets.
本方式の記録ヘッドとして、その基材にガラスあるいは
金属を用いたものが種々報告されているが、本発明は高
分子樹脂を基材として用いたインクジェットヘッドに関
する。Various types of recording heads using this method have been reported using glass or metal as the base material, but the present invention relates to an inkjet head using a polymer resin as the base material.
第３図は、従来のヘッドのノズル付近の拡大断面図であ
り、３がノズル、４は振動板、５は基板である。ここで
、インクジェットヘッドの基材として高分子樹脂を用い
ることにより、加工、組立ての製造面で、ガラス、金属
等に比べてはるかに優れる。FIG. 3 is an enlarged sectional view of the vicinity of the nozzle of a conventional head, where 3 is the nozzle, 4 is a diaphragm, and 5 is a substrate. Here, by using a polymer resin as the base material of the inkjet head, it is far superior to glass, metal, etc. in terms of processing and assembly.
［発明が解決しようとする課題）
しかしながら、前述の従来技術では、高分子樹脂のもつ
固有の物性から、インクの高分子樹脂表面に対する接触
角がガラス、金属に対するそれらに比べて大きく、その
ためインク滴７を飛翔させる場合、インクの一部は第３
図の８で示すようにノズル端面に盛り上がり、その影響
で射出されたインク滴は飛翔方向が定まらず、印字品質
を損うという課題があった。[Problems to be Solved by the Invention] However, in the above-mentioned conventional technology, due to the inherent physical properties of the polymer resin, the contact angle of the ink with the polymer resin surface is larger than that with glass or metal, so that the ink droplets are When flying 7, some of the ink is
As shown by 8 in the figure, the ink droplets bulge on the end face of the nozzle, and as a result of this, the ejected ink droplets do not have a fixed flying direction, which causes a problem in that printing quality is impaired.
本発明の目的は、インク飛翔の際にノズル端面へのイン
クの盛り上がりを防ぎ、ノズル端面が均一に濡れた状態
をつくりだす、ことによって、インク飛翔方向を一定に
し良好な印字品質を提供することにある。The purpose of the present invention is to prevent the ink from rising to the nozzle end face when the ink flies, and to create a uniformly wet state on the nozzle end face, thereby keeping the ink flying direction constant and providing good printing quality. be.
〔課題を解決するための手段１
本発明の第１のインクジエ・ントヘッドは高分子樹脂製
ヘッドにおけるノズル端面に硫酸処理、紫外線処理、プ
ラズマ処理、コロナ放電処理、電子線処理、または火災
処理を行ない、高分子表面を活性化させたことを特徴と
する。[Means for Solving the Problems 1] The first inkjet head of the present invention is a polymer resin head in which the nozzle end face is subjected to sulfuric acid treatment, ultraviolet ray treatment, plasma treatment, corona discharge treatment, electron beam treatment, or fire treatment. , which is characterized by an activated polymer surface.
本発明の第２のインクジェットヘッドは高分子樹脂製ヘ
ッドにおけるノズル端面に金属被膜をつけたことを特徴
とする。The second inkjet head of the present invention is characterized in that a metal coating is applied to the nozzle end face of the head made of polymer resin.
本発明の第３のインクジェットヘッドは高分子樹脂製ヘ
ッドにおけるノズル端面を機械的に梨地状に加工したこ
とを特徴とする。The third inkjet head of the present invention is characterized in that the nozzle end face of the head made of polymer resin is mechanically processed into a matte finish.
〔実 施 例１
第１図（ａ）は、本発明のヘッドの概略図であり、ｌは
圧力室、２はインク流路、３はノズルである。第１図（
ｂ）は第１図（ａ）に示したヘッドの矢視Ａからのノズ
ルの拡大図を示す、４は振動板、５は基板であり、とも
に透明なポリサルホン樹脂、ポリエステル樹脂、ポリカ
ーボネート樹脂、またはボリアリレート樹脂によってで
きている。６の斜線部分は、本発明の特徴をなす処理部
分である。[Example 1] FIG. 1(a) is a schematic diagram of a head of the present invention, where l is a pressure chamber, 2 is an ink flow path, and 3 is a nozzle. Figure 1 (
b) shows an enlarged view of the nozzle taken from arrow A of the head shown in FIG. Made of polyarylate resin. The diagonally shaded portion 6 is a processed portion that is a feature of the present invention.
第２図は第１図（ａ）に示した流路を基板の両面に成形
したヘッドの断面及び、インクの飛翔状態を示す。FIG. 2 shows a cross section of a head in which the flow channels shown in FIG. 1(a) are formed on both sides of a substrate, and the state of ink flight.
以下、実施例１〜３を説明する。Examples 1 to 3 will be described below.
実施例１
第１図（ｂ）の６の斜線部分は、硫酸処理、紫外線処理
、プラズマ処理、コロナ放電処理、電子線処理、または
火災処理が行なわれたことを示している。この６の樹脂
表面は、未処理表面に比べて、活性化されて極性基が生
成しており、この結果、インクがノズル端面に均一に濡
れ、第２図に示すようにインク飛翔方向を一定にしてい
る。Example 1 The shaded area 6 in FIG. 1(b) indicates that sulfuric acid treatment, ultraviolet ray treatment, plasma treatment, corona discharge treatment, electron beam treatment, or fire treatment was performed. Compared to the untreated surface, the resin surface of No. 6 is activated and generates polar groups. As a result, the ink wets the nozzle end face uniformly, and the ink flight direction is kept constant as shown in Figure 2. I have to.
なお、ヘッドの基材としてポリサルホン樹脂、ポリエス
テル樹脂、ポリカーボネート樹脂、またはボリアリレー
ト樹脂以外の高分子樹脂についても同様な処理を行なっ
て検討したところ、同等な結果が得られた。Similar results were obtained when polymer resins other than polysulfone resin, polyester resin, polycarbonate resin, or polyarylate resin were used as the base material for the head.
実施例２
第１図（ｂ）の６の斜線部分は、無電解ニッケルメッキ
がつけられたことを示している。この６の樹脂表面は金
属化されており、この結果、インクがノズル端面に均一
に濡れ、第２図に示すようにインク飛翔方向を一定にし
ている。Example 2 The shaded area 6 in FIG. 1(b) indicates that electroless nickel plating was applied. The resin surface of the nozzle 6 is metallized, and as a result, the ink uniformly wets the nozzle end face, making the ink flying direction constant as shown in FIG.
なお、ヘッドの基材としてポリサルホン樹脂、ポリエス
テル樹脂、ポリカーボネート樹脂、またはボリアリレー
ト樹脂以外の高分子樹脂についても同様なメツキを行な
って検討したところ、同等な結果が得られた。Similar results were obtained when similar plating was performed using polymer resins other than polysulfone resin, polyester resin, polycarbonate resin, or polyarylate resin as the base material of the head.
また、メツキの替わりにニッケルスパッタ、クロムスパ
ッタを行なって検討したところ、同等な結果が得られた
。In addition, when nickel sputtering and chromium sputtering were used instead of plating, similar results were obtained.
実施例３
第１図（ｂ）の６の斜線部分は、鉄粉により、バレル処
理されていることを示している。この６の樹脂表面は梨
地状に加工されているため、インクの濡れを促進する作
用をする。この結果、インクがノズル端面に均一に濡れ
、第２図に示すようにインク飛翔方向を一定にしている
。Example 3 The shaded area 6 in FIG. 1(b) indicates that barrel treatment is performed with iron powder. Since the resin surface of No. 6 is processed to have a satin finish, it acts to promote ink wetting. As a result, the ink uniformly wets the nozzle end face, and the ink flying direction is kept constant as shown in FIG.
なお、ヘッドの基材としてポリサルホン樹脂、ポリエス
テル樹脂、ポリカーボネート樹脂、またはボリアリレー
ト樹脂以外の高分子樹脂についても同様な処理を行なっ
て検討したところ、同等な結果が得られた。Similar results were obtained when polymer resins other than polysulfone resin, polyester resin, polycarbonate resin, or polyarylate resin were used as the base material for the head.
また、バレル処理の替わりに目の細かいラッピングシー
トでノズル端面を研磨して検討したところ、同等な結果
が得られた。In addition, when the nozzle end face was polished with a fine-mesh lapping sheet instead of barrel treatment, similar results were obtained.
以上説明したように１本発明のいずれのインクジェット
ヘッドによっても、インクのノズル端面の濡れ特性を大
きく向上させることができる。その結果、インク飛翔の
際にノズル端面にインクを溜めず、ノズル端面が均一に
濡れた状態をつくりだすことによって、インク飛翔方向
を一定にし、印字品質の良好なインクジェットヘッドを
実現している。As explained above, any inkjet head of the present invention can greatly improve the wetting characteristics of the ink nozzle end face. As a result, no ink accumulates on the nozzle end face when the ink is ejected, and by creating a uniformly wet state on the nozzle end face, the ink ejecting direction is kept constant and an inkjet head with good print quality is realized.
第１図（ａ）は本発明のヘッド概略図、第１図（ｂ）は
、第１図（ａ）に示したヘッドの矢視Ａからのノズルの
拡大図、第２図は第１図（ａ）に示した流路を基板の両
面に成形したときのヘッドのノズル付近の拡大断面図、
第３図は従来のヘッドのノズル付近の拡大断面図。
６・・・処理部分
７・・・飛翔インク滴
８・・・ノズル端面に盛り上がったインク以上
出願人 セイコーエプソン株式会社
代理人 弁理士 鈴 木 喜三部（他１名）・圧力室
・インク流路
・ノズル
・振動板
・基板
第２図
第
図
第３図FIG. 1(a) is a schematic view of the head of the present invention, FIG. 1(b) is an enlarged view of the nozzle taken from arrow A of the head shown in FIG. 1(a), and FIG. 2 is the same as that shown in FIG. An enlarged sectional view of the vicinity of the nozzle of the head when the flow channels shown in (a) are formed on both sides of the substrate,
FIG. 3 is an enlarged sectional view of the vicinity of the nozzle of a conventional head. 6... Processing part 7... Flying ink droplets 8... More than the ink raised on the nozzle end surface Applicant Seiko Epson Corporation Representative Patent attorney Kizobe Suzuki (1 other person) Pressure chamber Ink flow Channel, nozzle, diaphragm, board Fig. 2 Fig. 3
Claims (3)
理、紫外線処理、プラズマ処理、コロナ放電処理、電子
線処理、または火災処理を行ない、高分子樹脂表面を活
性化させたことを特徴とするインクジェットヘッド。(1) An inkjet characterized by activating the polymer resin surface by subjecting the nozzle end face of the polymer resin head to sulfuric acid treatment, ultraviolet ray treatment, plasma treatment, corona discharge treatment, electron beam treatment, or fire treatment. head.
膜をつけたことを特徴とするインクジェットヘッド。(2) An inkjet head characterized by having a metal coating applied to the nozzle end face of a polymer resin head.
に梨地状に加工したことを特徴とするインクジェットヘ
ッド。(3) An inkjet head characterized in that the nozzle end face of the head made of polymer resin is mechanically processed into a satin finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21750488A JPH0263840A (en) | 1988-08-31 | 1988-08-31 | Ink jet head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21750488A JPH0263840A (en) | 1988-08-31 | 1988-08-31 | Ink jet head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0263840A true JPH0263840A (en) | 1990-03-05 |
Family
ID=16705272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21750488A Pending JPH0263840A (en) | 1988-08-31 | 1988-08-31 | Ink jet head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0263840A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000313116A (en) * | 1996-04-11 | 2000-11-14 | Citizen Watch Co Ltd | Ink jet head and manufacture thereof |
| WO2020261632A1 (en) * | 2019-06-25 | 2020-12-30 | 株式会社日立製作所 | Inkjet recording device |
| CN112705854A (en) * | 2019-10-25 | 2021-04-27 | 梁绍亨 | Marking method of dried orange peel |
-
1988
- 1988-08-31 JP JP21750488A patent/JPH0263840A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000313116A (en) * | 1996-04-11 | 2000-11-14 | Citizen Watch Co Ltd | Ink jet head and manufacture thereof |
| WO2020261632A1 (en) * | 2019-06-25 | 2020-12-30 | 株式会社日立製作所 | Inkjet recording device |
| JP2021003811A (en) * | 2019-06-25 | 2021-01-14 | 株式会社日立製作所 | Ink jet recording apparatus |
| CN112705854A (en) * | 2019-10-25 | 2021-04-27 | 梁绍亨 | Marking method of dried orange peel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3264971B2 (en) | Method of manufacturing ink jet recording head | |
| JP3169037B2 (en) | Method for manufacturing nozzle plate of ink jet recording head | |
| US5684519A (en) | Ink jet head with buckling structure body | |
| JP4006441B2 (en) | Print head for inkjet printer | |
| JPS63272558A (en) | Ink jet recorder | |
| JPH0263840A (en) | Ink jet head | |
| JPH07329303A (en) | Surface treatment method for ink jet head | |
| JPH0985956A (en) | Forming method for ink-jet nozzle | |
| JPS58175666A (en) | Ink jet printing head | |
| JP2987954B2 (en) | INK JET NOZZLE PLATE, METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR FORMING PORE | |
| JPH06340071A (en) | Recording head of ink jet printer, production thererof and ink jet printer | |
| JP2827413B2 (en) | Inkjet recording head | |
| JPH11147316A (en) | Ink jet recording head and manufacture of nozzle plate | |
| US6637868B2 (en) | Inkjet head and method of manufacturing the same | |
| JP3190658B2 (en) | Inkjet recording head | |
| JPH06143587A (en) | Manufacture of ink jet head | |
| JPH09277537A (en) | Preparation of ink-jet head | |
| JPH08318628A (en) | Manufacture of ink-jet recording head | |
| JPH01125242A (en) | Formation of nozzle end face in ink jet head | |
| JP3474368B2 (en) | Ink jet head, method of manufacturing the same, and ink jet recording apparatus | |
| JPH06297705A (en) | Ink jet recording head | |
| JPS61193861A (en) | Ink jet head | |
| JPH0952370A (en) | Ink jet device | |
| JP2001187447A (en) | Nozzle plate of ink jet recording head | |
| JPH08118656A (en) | Ink jet head and ink jet recording apparatus |