JPH04140147A - Cleaning blade member for liquid jet recording device - Google Patents
Cleaning blade member for liquid jet recording deviceInfo
- Publication number
- JPH04140147A JPH04140147A JP2264581A JP26458190A JPH04140147A JP H04140147 A JPH04140147 A JP H04140147A JP 2264581 A JP2264581 A JP 2264581A JP 26458190 A JP26458190 A JP 26458190A JP H04140147 A JPH04140147 A JP H04140147A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- hardness
- cleaning member
- cleaning
- jisa
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 229920001971 elastomer Polymers 0.000 claims abstract description 23
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 23
- 239000005060 rubber Substances 0.000 claims abstract description 23
- 230000007062 hydrolysis Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 8
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 7
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 3
- 239000003112 inhibitor Substances 0.000 claims description 14
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 18
- 229920006311 Urethane elastomer Polymers 0.000 abstract description 9
- 230000006866 deterioration Effects 0.000 abstract description 7
- -1 Carbodiimide compounds Chemical class 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 239000002530 phenolic antioxidant Substances 0.000 abstract 1
- 238000010186 staining Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 14
- 238000004073 vulcanization Methods 0.000 description 14
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 11
- 230000000704 physical effect Effects 0.000 description 8
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 4
- VFBJXXJYHWLXRM-UHFFFAOYSA-N 2-[2-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]ethylsulfanyl]ethyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCCSCCOC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 VFBJXXJYHWLXRM-UHFFFAOYSA-N 0.000 description 3
- DPKKMEJHPMCNSX-UHFFFAOYSA-N NC(=O)OCC.C1(CCCCC(=O)OCCO1)=O Chemical compound NC(=O)OCC.C1(CCCCC(=O)OCCO1)=O DPKKMEJHPMCNSX-UHFFFAOYSA-N 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 150000001718 carbodiimides Chemical class 0.000 description 3
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 3
- 229920005862 polyol Polymers 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000002596 lactones Chemical class 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- USVVENVKYJZFMW-ONEGZZNKSA-N (e)-carboxyiminocarbamic acid Chemical class OC(=O)\N=N\C(O)=O USVVENVKYJZFMW-ONEGZZNKSA-N 0.000 description 1
- PAALZGOZEUHCET-UHFFFAOYSA-N 1,4-dioxecane-5,10-dione Chemical compound O=C1CCCCC(=O)OCCO1 PAALZGOZEUHCET-UHFFFAOYSA-N 0.000 description 1
- XESZUVZBAMCAEJ-UHFFFAOYSA-N 4-tert-butylcatechol Chemical compound CC(C)(C)C1=CC=C(O)C(O)=C1 XESZUVZBAMCAEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 239000004970 Chain extender Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Ink Jet (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
１）産業上の利用分野
本発明は、液体噴射記録装置の液体噴射面に付着した付
着物を清掃除去するクリーニングプレート部材に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION 1) Industrial Application Field The present invention relates to a cleaning plate member for cleaning and removing deposits adhering to a liquid ejecting surface of a liquid ejecting recording device.
２）従来の技術
従来、液体噴射用ヘッドを用いた液体噴射記録装置に於
いては、記録媒体上の目的とする位置に、噴射した液体
を精密に飛行させるために、その噴射ノズル近傍に付着
したゴミ、ホコリ、紙粉の清掃除去と、噴射した液で噴
射ノズル近傍に付着残留した液体すなわちインク及びそ
の乾燥した付着物の清掃除去が必要であり、このために
稜を有した弾性部材にて噴射ヘッド面を摺擦清掃する機
構を付加してきた。2) Conventional technology Conventionally, in a liquid jet recording device using a liquid jet head, in order to make the jetted liquid fly precisely to the desired position on the recording medium, a liquid that adheres to the vicinity of the jet nozzle is used. It is necessary to clean the dirt, dust, and paper powder that has been removed, and to clean and remove the liquid that remains attached to the vicinity of the injection nozzle, that is, the ink and its dried adhesion. A mechanism has been added to scrub and clean the jet head surface.
弾性部材としては、その柔軟さからゴム材が用いられて
おり、種々のゴム材より、最近では、耐摩耗性が良く、
インク組成を変質させず、ヘッドへの摺擦による引っか
き傷が無いという点で、無機質の充填剤を添加しないポ
リウレタンゴムが用いられるようになった。Rubber materials are used as elastic members due to their flexibility, and recently, rubber materials have better wear resistance than other rubber materials.
Polyurethane rubber without added inorganic fillers has come to be used because it does not alter the ink composition and does not cause scratches on the head due to rubbing.
ウレタンゴム材としては、ポリエステル系ポリオールを
分子骨格にしたアジペート系、ラクトン系等のポリウレ
タンゴム組成物が耐摩耗性に優れている為用いられてい
る。As the urethane rubber material, adipate-based and lactone-based polyurethane rubber compositions having polyester polyol as the molecular skeleton are used because they have excellent wear resistance.
３）発明が解決しようとしている問題点しかしながら、
ポリエステル系ポリオールを骨格としたウレタンゴムは
、耐摩耗性の良い反面分子骨格中に加水分解に弱いエス
テル基を含むために、使用するに従い、水分の介在によ
り加水分解反応を生じ、これによりウレタンゴムの分子
構造に変化が生じ、初期の機械的特性に劣化が起こり、
時間、温度、湿度等の因子で指数関数的に急速に劣化し
ていく、この結果、ある環境下に要部に使用すると、機
械的特性の低下によってゴム硬度の変化や塑性変形が生
じ液体噴出ヘッドとの接触圧の低下によるクリーニング
不良や、さらに劣化が進に従って、 ゴムの粘着性が増
加しかつゴム粘弾性挙動を示さなくなるなどヘッド表面
のクリーニングができなくなる問題があった。3) The problem that the invention is trying to solve However,
Urethane rubber with a backbone of polyester polyol has good abrasion resistance, but since it contains ester groups that are susceptible to hydrolysis in its molecular backbone, as it is used, a hydrolysis reaction occurs due to the presence of moisture, which causes the urethane rubber to deteriorate. changes occur in the molecular structure of the material, causing deterioration of the initial mechanical properties,
It rapidly deteriorates exponentially due to factors such as time, temperature, and humidity.As a result, when used in important parts under certain environments, the mechanical properties deteriorate, causing changes in rubber hardness and plastic deformation, causing liquid to gush out. There were problems such as poor cleaning due to a decrease in contact pressure with the head, and as the deterioration progressed, the adhesiveness of the rubber increased and the rubber no longer showed viscoelastic behavior, making it impossible to clean the head surface.
４）問題を解決するための手段
本発明においては、上述問題点を解決するために、 ク
リーニング部材として使用するポリエステル系ポリオー
ルを骨格としたウレタンゴム中１こ、加水分解により生
成するカルボキシル基と反応する加水分解防止剤を添加
し、加水分解反応を抑制する方法を考案し、耐加水分解
性を改良したクリニング部材を見いだし１本発明を完成
するに至っ た・
クリーニング部材の材質としては、耐摩耗性の観点から
、ポリエステル系ポリオールを骨格としたウレタンゴム
が良く、 アジペート系やラクトン系のポリオールやこ
れらの混合物系等のポリオルとポリイソシアナート類及
び鎖延長剤としてのグリコール類、 アミン類、架橋剤
としての多官能ポリオール類やポリアミン類が用いられ
、所望するブレード機能を満足するウレタンゴムを分子
設計して合成かつ成形してブレードを形成する。4) Means for Solving the Problems In the present invention, in order to solve the above-mentioned problems, one of the urethane rubbers having a backbone of polyester polyol used as a cleaning member reacts with carboxyl groups generated by hydrolysis. They devised a method of adding a hydrolysis inhibitor to suppress the hydrolysis reaction, found a cleaning member with improved hydrolysis resistance, and completed the present invention. The material of the cleaning member is abrasion resistant. From the viewpoint of properties, urethane rubber with a backbone of polyester polyol is preferable, and polyols such as adipate-based or lactone-based polyols or mixtures thereof, polyisocyanates, glycols as chain extenders, amines, and crosslinking are recommended. Polyfunctional polyols and polyamines are used as agents, and urethane rubber that satisfies the desired blade function is molecularly designed, synthesized, and molded to form the blade.
加水分解防止剤としては、カルボジイミド系化合物、４
−ｔ−ブチルカテコール、 アゾジカルボナミッド、
アゾジカルボキシリック酸エステル、脂肪酸アマイド等
が有効である。また、加水分解防止剤の分子中の側鎖を
変えて、ポリエステルポリオルとの相溶性を改善した加
水分解防止剤も良い。As hydrolysis inhibitors, carbodiimide compounds, 4
-t-butylcatechol, azodicarbonamide,
Azodicarboxylic acid esters, fatty acid amides, etc. are effective. Also, a hydrolysis inhibitor whose compatibility with the polyester polyol is improved by changing the side chain in the molecule of the hydrolysis inhibitor may also be used.
その地髪合物としては、熱酸化劣化や光劣化によって生
じる官能基による加水分解の促進を防ぐために、酸化防
止剤や紫外線吸収剤などの添加も効果があり、 これら
添加剤の併用による相乗効果も有効である。酸化防止剤
としては、フェノール系とアミン系があるが、感光体へ
の非汚染性の点からフェノール系の酸化防止剤が良い、
特にヒンダードフェノール系で高分子量の非移行性の物
が良く１例えば、Ｉｒｇａｎｏｘｌｏｌｏ、 １０３５
．１０７６等が良い。In order to prevent the promotion of hydrolysis caused by functional groups caused by thermal oxidative deterioration and photodegradation, it is effective to add antioxidants and ultraviolet absorbers to the natural hair compound, and the combination of these additives has a synergistic effect. is also valid. There are phenol-based and amine-based antioxidants, but phenol-based antioxidants are preferred because they do not stain the photoreceptor.
In particular, hindered phenol-based, high-molecular-weight, non-migratory substances are preferred.1 For example, Irganoxlolo, 1035
．． 1076 etc. is good.
紫外線吸収剤としては、サリチル酸系、ベンゾフェノン
系、ベンゾトリアゾール系誘導体が良く、例えばＶｉｏ
ｓｏｒｂｌｏｏ、１３０．１２０．Ｃｙａｓｏｒｔ＋
ＵＶ−２４，Ｔｉｎｕｖｉｎ Ｐ、３２０．３２７等が
良い。As UV absorbers, salicylic acid-based, benzophenone-based, and benzotriazole-based derivatives are preferred, such as Vio.
sorbloo, 130.120. Cyasort+
UV-24, Tinuvin P, 320.327, etc. are good.
ウレタンゴムのゴム硬度としては、付着残留物のクリー
ニング性の点から、クリーニング部材を所定の距離及び
荷重で所定の拭き取り圧力になるよう液体噴射ヘッドに
押し当てるよう設定するが、あまり硬度が低すぎるとゴ
ムの機械的強度が低下しヘッドとの摺擦時にゴムの稜が
欠けることによるクリーニング不良が生じるため、 Ｊ
ＩＳＡで３５゛以上の硬度が好ましく、また硬度の硬い
クリニング部材では液体噴射ヘッド表面へ傷を作るため
、 ＪＩＳＡで８０°以下のものが好ましい。The rubber hardness of the urethane rubber is set so that the cleaning member is pressed against the liquid ejecting head at a predetermined distance and load with a predetermined wiping pressure from the viewpoint of cleaning properties of attached residue, but the hardness is too low. J
The hardness is preferably 35 degrees or more according to ISA, and the hardness of cleaning members with hardness is preferably 80 degrees or less according to JISA, since it may cause scratches on the surface of the liquid jet head.
５）実施例
実施例１
ゴム材料
エチレンアジペート系ウレタンブレボリマー１００ｇｒ
（日本ポリウレタン工業製 Ｍｎ１５０ＯＮＣＯ６，２
ｗｔ％）
硬化剤
１．４−ブタンジオール
３．９ｇｒ
トリメチロールプロパン
２・ Ｉｇｒ
加水分解防止剤
スタバクゾール１ （カルボジイミド系）Ｉｇｒ
成形温度 １３０℃ 成形時間 ３０分
二次加硫温度 １３０℃ 二次加硫時間 ４時間
加熱溶解したウレタンプレポリマーに硬化剤を混合し、
加熱した型に注型し加 熱硬化させ所定の形状に加工し
た。5) Examples Example 1 Rubber material Ethylene adipate-based urethane brebolymer 100gr (manufactured by Nippon Polyurethane Industries, Ltd. Mn150ONCO6,2
wt%) Curing agent 1.4-butanediol 3.9gr Trimethylolpropane 2. Igr Hydrolysis inhibitor Stabaxol 1 (carbodiimide-based) Igr Molding temperature 130°C Molding time 30 minutes Secondary vulcanization temperature 130°C Secondary vulcanization A curing agent is mixed with the urethane prepolymer that has been heated and melted for 4 hours.
It was poured into a heated mold and heated to harden and processed into the desired shape.
成形物物性
ゴム硬度 ＪＩＳＡ ６２ 圧縮永久歪（７０℃
） ９ ％
実施例２
ゴム材料
エチレンアジペート系ウレタンプレポリマー００ｇｒ
（日本ポリウレタン工業製 Ｍｎ１５０ＯＮＧＯ６，２
ｗｔ％）
硬化剤
１．４−ブタンジオール ３．９ｇｒトリメチロール
プロパン ２．１ｇｒ加水分解防止剤
スタパクゾールｌ （カルボジイミド系）Ｉｇｒ
酸化防止剤
Ｉｒｇａｎｏｘ１０３５
０．５ｇｒ
紫外線吸収剤
Ｔｉｎｕｖｉｎ Ｐ
Ｏ，２ｇｒ
成形温度 １３０℃ 成形時間 ３０分
二次加硫温度 １３０℃ 二次加硫時間 ４時間
加熱溶解したウレタンプレポリマーに硬化剤を混合し、
加熱した型に注型し加 熱硬化させ所定の形状に加工し
た。Molded product physical properties Rubber hardness JISA 62 Compression set (70℃
) 9% Example 2 Rubber material ethylene adipate urethane prepolymer 00gr (manufactured by Nippon Polyurethane Industries, Ltd. Mn150ONGO6,2
wt%) Curing agent 1.4-butanediol 3.9gr Trimethylolpropane 2.1gr Hydrolysis inhibitor Stapaxol l (carbodiimide type) Igr Antioxidant Irganox 1035 0.5gr Ultraviolet absorber Tinuvin PO, 2gr Molding temperature 130°C Molding time: 30 minutes Secondary vulcanization temperature: 130°C Secondary vulcanization time: 4 hours A curing agent is mixed with the urethane prepolymer heated and melted.
It was poured into a heated mold and heated to harden and processed into the desired shape.
成形物物性
ゴム硬度 ＪＩＳＡ ６２ 圧縮永久歪（７０℃）
１０％
実施例３
ゴム材料
カプロラクトン系ウレタンプレポリマー００ｇｒ
（日本ポリウレタン工業製 Ｍ ｎ １５００ＮＣＯ６
，２ｗｔ％）
硬化剤
１．４−ブタンジオール
３・ ９ｇｒ
トリメチロールプロパン
２、Ｉｇｒ
加水分解防止剤
スタバクゾールＩ
Ｉｇｒ
成形温度 １３０℃ 成形時間 ３０分
二次加硫温度 １３０℃ 二次加硫時間 ４時間
加熱溶解したウレタンプレポリマーに硬化剤を混合し、
加熱した型に注型し加 熱硬化させ所定の形状に加工し
た。Molded product physical properties Rubber hardness JISA 62 Compression set (70℃)
10% Example 3 Rubber material caprolactone-based urethane prepolymer 00gr (manufactured by Nippon Polyurethane Industries, Ltd. M n 1500NCO6
, 2wt%) Curing agent 1.4-butanediol 3.9gr Trimethylolpropane 2, Igr Hydrolysis inhibitor Stabaxol I Igr Molding temperature 130°C Molding time 30 minutes Secondary vulcanization temperature 130°C Secondary vulcanization time 4 hours A curing agent is mixed into the heated and melted urethane prepolymer,
It was poured into a heated mold and heated to harden and processed into the desired shape.
成形物物性
ゴム硬度 ＪＩＳＡ ６５ 圧縮永久歪（７０℃）
１２％
実施例４
ゴム材料
カプロラクトン系ウレタンプレポリマ
００ｇｒ
（日本ポリウレタン工業製 Ｍｎ１５０ＯＮＣＯ６，２
ｗｔ％）
硬化剤
１４−ブタンジオール
３．９ｇｒ
トリメチロールプロパン
２．１ｇｒ
加水分解防止剤
スタパクゾールＩ
ｇｒ
酸化防止剤
Ｉｒｇａｎｏｘ１０３５
０．５ｇｒ
紫外線吸収剤
Ｔｉｎｕｖｉｎ Ｐ
０．２ｇｒ
成形温度 １３０℃ 成形時間 ３０分
二次加硫温度 １３０℃ 二次加硫時間 ４時間
加熱溶解したウレタンプレポリマーに硬化剤を混合し、
加熱した型に注型し加 熱硬化させ所定の形状に加工し
た。Molded product physical properties Rubber hardness JISA 65 Compression set (70℃)
12% Example 4 Rubber material caprolactone-based urethane prepolymer 00gr (manufactured by Nippon Polyurethane Industries, Ltd. Mn150ONCO6,2
wt%) Curing agent 14-butanediol 3.9gr Trimethylolpropane 2.1gr Hydrolysis inhibitor Stapaxol I gr Antioxidant Irganox 1035 0.5gr Ultraviolet absorber Tinuvin P 0.2gr Molding temperature 130°C Molding time 30 minutes Secondary Vulcanization temperature: 130°C Secondary vulcanization time: 4 hours A curing agent is mixed with the urethane prepolymer heated and melted,
It was poured into a heated mold and heated to harden and processed into the desired shape.
成形物物性
ゴム硬度 ＪＩＳＡ ６５ 圧縮永久歪（７０℃）
１２％
実施例５
ゴム材料
エチレンアジペート系ウレタンプレポリマー００ｇｒ
（日本ポリウレタン工業ＷＭｎ１５０ＯＮＣＯ６，２ｗ
ｔ％）
硬化剤
１．４−ブタンジオール
３．９ｇｒ
トリメチロールプロパン
２．１ｇｒ
加水分解防止剤
ＰＣＤ （カルボジイミドｉ ＋ Ｂ ｓ ｙ ｅ
ｒ社）ｇｒ
酸化防止剤
Ｉｒｇａｎｏｘ１０３５
０．５ｇｒ
紫外線吸収剤
Ｔｉｎｕｖｉｎ Ｐ
０．２ｇｒ
成形温度 １３０℃ 成形時間 ３Ｏ分
二次加硫温度 １３０℃ 二次加硫時間 ４時間
加熱溶解したウレタンプレポリマーに硬化剤を混合し、
加熱した型に注型し加 熱硬化させ所定の形状に加工し
た。Molded product physical properties Rubber hardness JISA 65 Compression set (70℃)
12% Example 5 Rubber material ethylene adipate urethane prepolymer 00gr (Nippon Polyurethane Industries WMn150ONCO6,2w
t%) Curing agent 1.4-butanediol 3.9gr Trimethylolpropane 2.1gr Hydrolysis inhibitor PCD (Carbodiimide i + B s y e
R company) gr Antioxidant Irganox 1035 0.5gr Ultraviolet absorber Tinuvin P 0.2gr Molding temperature 130°C Molding time 30 minutes Secondary vulcanization temperature 130°C Secondary vulcanization time 4 hours Add curing agent to urethane prepolymer heated and dissolved mix,
It was poured into a heated mold and heated to harden and processed into the desired shape.
成形物物性
ゴム硬度 ＪＩＳＡ ６２ 圧縮永久歪（，７０℃
） １０％
比較例１
ゴム材料
エチレンアジペート系ウレタンプレポリマー００ｇｒ
（日本ポリウレタン工業ｇＭｎ１５０ＯＮＣＯ６，２ｗ
ｔ％）
硬化剤
１．４−ブタンジオール
３．９ｇｒ
トリメチロールプロパン
２．１ｇｒ
成形温度 １３０℃ 成形時間 ３０分
二次加硫温度 １３０℃ 二次加硫時間 ４時間
加熱溶解したウレタンプレポリマーに硬化剤を混合し、
加熱した型に注型し加 熱硬化させ所定の形状に加工し
た。Molded product physical properties Rubber hardness JISA 62 Compression set (,70℃
) 10% Comparative Example 1 Rubber material ethylene adipate urethane prepolymer 00gr (Nippon Polyurethane Kogyo gMn150ONCO6,2w
t%) Curing agent 1.4-butanediol 3.9gr Trimethylolpropane 2.1gr Molding temperature 130°C Molding time 30 minutes Secondary vulcanization temperature 130°C Secondary vulcanization time 4 hours Cured into urethane prepolymer heated and dissolved mix the agent,
It was poured into a heated mold and heated to harden and processed into the desired shape.
成形物物性
ゴム硬度 ＪＩＳＡ ６２ 圧縮永久歪（７０℃）
９％
比較例２
ゴム材料
カプロラクトン系ウレタンプレポリマー００ｇｒ
（日本ポリウレタン工業製 Ｍｎ１５０ＯＮＣ○ ６．
２ｗｔ％）
硬化剤
１．４−ブタンジオール
３・ ９ｇｒ
トリメチロールプロパン
２・ Ｉｇｒ
成形濃度 １３０℃ 成形時間 ３０分
二次加硫温度 １３０℃ 二次加硫時間 ４時間
加熱溶解したウレタンプレポリマーに硬化剤を混合し、
加熱した型に注型し加 熱硬化させ所定の形状に加工し
た。Molded product physical properties Rubber hardness JISA 62 Compression set (70℃)
9% Comparative Example 2 Rubber material caprolactone-based urethane prepolymer 00gr (manufactured by Nippon Polyurethane Industries, Ltd. Mn150ONC○ 6.
2wt%) Curing agent 1.4-butanediol 3.9gr Trimethylolpropane 2.Igr Molding concentration 130℃ Molding time 30 minutes Secondary vulcanization temperature 130℃ Secondary vulcanization time 4 hours Cured into urethane prepolymer heated and dissolved mix the agent,
It was poured into a heated mold and heated to harden and processed into the desired shape.
成形物物性
ゴム硬度 ＪＩＳＡ ６５ 圧縮永久歪（７０℃）
１０％
以上により成形したクリーニング部材について、加水分
解性テストのデーターを表−１に示す。Molded product physical properties Rubber hardness JISA 65 Compression set (70℃)
Table 1 shows the hydrolyzability test data for cleaning members molded with 10% or more.
以上の結果から明らかなように、本発明のクリーニング
部材は、実施例１から実施例５までのどのクリーニング
部材とも、初期的な機械的特性の劣化は少ないことが証
明された。また、加水分解防止剤と酸化防止剤、紫外線
吸収剤の併用による効果も証明された。As is clear from the above results, it was proven that the cleaning member of the present invention showed less deterioration in initial mechanical properties than any of the cleaning members from Example 1 to Example 5. Furthermore, the effect of using a hydrolysis inhibitor, antioxidant, and ultraviolet absorber in combination was also demonstrated.
一方、比較例１のクリーニング部材は、加水分解テスト
後の機械的特性の劣化が大きく、また、比較例２は比較
例１より良いが実施例より明らかに劣化が促進している
ことが明瞭である。On the other hand, in the cleaning member of Comparative Example 1, the mechanical properties deteriorated significantly after the hydrolysis test, and although Comparative Example 2 was better than Comparative Example 1, it was clear that the deterioration was clearly accelerated compared to the Example. be.
６〕発明の詳細
な説明したように、本発明のクリーニング部材を用いれ
ば、加水分解による物性低下も少なくクリーニング性能
の低下を防止することができ、長期間の使用に耐える優
れたクリーニング部材を提供するものである。6] As described in detail of the invention, by using the cleaning member of the present invention, there is less deterioration of physical properties due to hydrolysis, and a decrease in cleaning performance can be prevented, thereby providing an excellent cleaning member that can withstand long-term use. It is something to do.
Claims (1)
液体噴射装置の液体噴射面に付着した付着物を掃除する
弾性体クリーニングプレートに於いて、その材質がポリ
ウレタンゴム組成物からなり、該ポリウレタンゴム中に
加水分解防止剤を含有しかつ、硬度がＪＩＳＡで３５か
ら８０度であることを特徴とするクリーニングプレート
部材。 ２） 上記クリーニング部材のポリウレタンゴムがポリエステ
ル系ポリオールから成ることを特徴とするクリーニング
部材。 ３） 上記クリーニング部材のポリウレタンゴム中に含有する
加水分解防止剤が、カルボキシル基と反応する加水分解
防止剤であることを特徴とするクリーニング部材。 ４） 上記クリーニング部材のポリウレタンゴム中に、加水分
解防止剤と酸化防止剤を併用して用いたことを特徴とす
るクリーニング部材。[Claims] 1) An elastic cleaning plate that cleans deposits adhering to the liquid ejection surface of a liquid ejection device that ejects liquid from a recording head to record on a recording medium, the material of which is polyurethane. A cleaning plate member comprising a rubber composition, containing a hydrolysis inhibitor in the polyurethane rubber, and having a hardness of 35 to 80 degrees according to JISA. 2) A cleaning member characterized in that the polyurethane rubber of the cleaning member is made of polyester polyol. 3) A cleaning member characterized in that the hydrolysis inhibitor contained in the polyurethane rubber of the cleaning member is a hydrolysis inhibitor that reacts with carboxyl groups. 4) A cleaning member characterized in that a hydrolysis inhibitor and an antioxidant are used in combination in the polyurethane rubber of the cleaning member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2264581A JPH04140147A (en) | 1990-10-01 | 1990-10-01 | Cleaning blade member for liquid jet recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2264581A JPH04140147A (en) | 1990-10-01 | 1990-10-01 | Cleaning blade member for liquid jet recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04140147A true JPH04140147A (en) | 1992-05-14 |
Family
ID=17405280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2264581A Pending JPH04140147A (en) | 1990-10-01 | 1990-10-01 | Cleaning blade member for liquid jet recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04140147A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5602573A (en) * | 1993-04-30 | 1997-02-11 | Hewlett-Packard Company | Service station for inkjet printer having wipers with concave wiping edges |
| US7673964B2 (en) | 2004-10-19 | 2010-03-09 | Ricoh Company, Ltd. | Removing member and image forming apparatus |
-
1990
- 1990-10-01 JP JP2264581A patent/JPH04140147A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5602573A (en) * | 1993-04-30 | 1997-02-11 | Hewlett-Packard Company | Service station for inkjet printer having wipers with concave wiping edges |
| US7673964B2 (en) | 2004-10-19 | 2010-03-09 | Ricoh Company, Ltd. | Removing member and image forming apparatus |
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