JPH04189878A - Water-based recording ink - Google Patents
Water-based recording inkInfo
- Publication number
- JPH04189878A JPH04189878A JP2318829A JP31882990A JPH04189878A JP H04189878 A JPH04189878 A JP H04189878A JP 2318829 A JP2318829 A JP 2318829A JP 31882990 A JP31882990 A JP 31882990A JP H04189878 A JPH04189878 A JP H04189878A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- carbon black
- group
- recording ink
- water
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 10
- 239000006229 carbon black Substances 0.000 claims abstract description 29
- 150000001412 amines Chemical class 0.000 claims abstract description 13
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 9
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims abstract description 5
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 12
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 abstract description 2
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 abstract description 2
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 abstract 1
- 235000019241 carbon black Nutrition 0.000 description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000002270 dispersing agent Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 230000002776 aggregation Effects 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 229920001800 Shellac Polymers 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 239000004208 shellac Substances 0.000 description 4
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 4
- 229940113147 shellac Drugs 0.000 description 4
- 235000013874 shellac Nutrition 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000557626 Corvus corax Species 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-O N-dimethylethanolamine Chemical compound C[NH+](C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-O 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 150000002169 ethanolamines Chemical class 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Natural products O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- -1 gum arabic Chemical compound 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000137 polyphosphoric acid Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- IWSZDQRGNFLMJS-UHFFFAOYSA-N 2-(dibutylamino)ethanol Chemical compound CCCCN(CCO)CCCC IWSZDQRGNFLMJS-UHFFFAOYSA-N 0.000 description 1
- SWKPGMVENNYLFK-UHFFFAOYSA-N 2-(dipropylamino)ethanol Chemical compound CCCN(CCC)CCO SWKPGMVENNYLFK-UHFFFAOYSA-N 0.000 description 1
- MTNFAXLGPSLYEY-UHFFFAOYSA-N 3-(2-ethenylnaphthalen-1-yl)prop-2-enoic acid Chemical compound C1=CC=C2C(C=CC(=O)O)=C(C=C)C=CC2=C1 MTNFAXLGPSLYEY-UHFFFAOYSA-N 0.000 description 1
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- MDNWOSOZYLHTCG-UHFFFAOYSA-N Dichlorophen Chemical compound OC1=CC=C(Cl)C=C1CC1=CC(Cl)=CC=C1O MDNWOSOZYLHTCG-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 241000978776 Senegalia senegal Species 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 229960004365 benzoic acid Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 239000001913 cellulose Chemical class 0.000 description 1
- 229920002678 cellulose Chemical class 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229960003887 dichlorophen Drugs 0.000 description 1
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 description 1
- YHAIUSTWZPMYGG-UHFFFAOYSA-L disodium;2,2-dioctyl-3-sulfobutanedioate Chemical compound [Na+].[Na+].CCCCCCCCC(C([O-])=O)(C(C([O-])=O)S(O)(=O)=O)CCCCCCCC YHAIUSTWZPMYGG-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- ACGUYXCXAPNIKK-UHFFFAOYSA-N hexachlorophene Chemical compound OC1=C(Cl)C=C(Cl)C(Cl)=C1CC1=C(O)C(Cl)=CC(Cl)=C1Cl ACGUYXCXAPNIKK-UHFFFAOYSA-N 0.000 description 1
- 229960004068 hexachlorophene Drugs 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 0.000 description 1
- 229920001206 natural gum Polymers 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000003960 organic solvent Substances 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
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 239000001397 quillaja saponaria molina bark Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229930182490 saponin Natural products 0.000 description 1
- 150000007949 saponins Chemical class 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- YWPOLRBWRRKLMW-UHFFFAOYSA-M sodium;naphthalene-2-sulfonate Chemical compound [Na+].C1=CC=CC2=CC(S(=O)(=O)[O-])=CC=C21 YWPOLRBWRRKLMW-UHFFFAOYSA-M 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、液体インクを用いて記録を行うインクジェッ
トプリンタに供する分散系の水性記録用インクに関する
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a dispersion type aqueous recording ink for use in an inkjet printer that performs recording using liquid ink.
[従来の技術1
従来、記録用液体インクの着色剤にカーボンブラックを
使用した例が、特開昭6.1−283875、特開昭6
4−6074、特開平1−31881等に記載されてい
る。また水性顔料インクにヒドロキシアルキル(アルカ
ノール)基を有するアミン誘導体を含有させた例が、特
開昭60−76576に記載されている。[Prior art 1 Conventionally, examples of using carbon black as a coloring agent in recording liquid ink are disclosed in Japanese Patent Application Laid-open No. 6.1-283875 and Japanese Patent Application Laid-open No. 6.1-283875.
4-6074, JP-A-1-31881, etc. Further, an example in which an aqueous pigment ink contains an amine derivative having a hydroxyalkyl (alkanol) group is described in JP-A-60-76576.
1発明が解決しようとする課題1
従来、着色剤にカーボンブラックを用いることによって
、記録物に高い耐光性、耐薬品性、耐水性が付与できる
反面、カーボンブラックの分散性向上を目的に添加する
炭化水素系界面活性剤が、インクの表面張力を低下させ
、被記録紙との濡れ性を必要以上に向上させるため、被
記録紙によってはにじみ等印字品質劣化が生じることが
あった。1 Problem to be Solved by the Invention 1 Conventionally, by using carbon black as a colorant, high light resistance, chemical resistance, and water resistance can be imparted to recorded materials, but on the other hand, carbon black is added for the purpose of improving the dispersibility of carbon black. Since the hydrocarbon surfactant lowers the surface tension of the ink and improves its wettability with the recording paper more than necessary, deterioration of printing quality such as bleeding may occur depending on the recording paper.
このためヒドロキシアルキル基を有するアミン誘導体の
添加が従来より提案されているが、アミンの窒素原子に
低級アルキル基が置換しないものでは、カーボンブラッ
クに対する濡れ性が悪く、炭化水素系界面活性剤との併
用が必要であった。同様にインク保存時においても、長
期保存安定性の確保が大きな課題となっていた。For this reason, the addition of amine derivatives having a hydroxyalkyl group has been proposed, but those in which the nitrogen atom of the amine is not substituted with a lower alkyl group have poor wettability with carbon black and are not compatible with hydrocarbon surfactants. Concomitant use was necessary. Similarly, during ink storage, ensuring long-term storage stability has been a major issue.
そこで、本発明はこのような課題を解決するもので、そ
の一つの目的は、新規の水性記録用インクを提供するこ
とにある。SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and one of its objects is to provide a new aqueous recording ink.
本発明のもう一つの目的は、カーボンブラックのもつ、
高い耐光性、耐薬品性、耐水性を活かした記録物の保存
安定性に優れた水性記録用インクを提供することにある
。Another object of the present invention is that carbon black has
An object of the present invention is to provide an aqueous recording ink that takes advantage of high light resistance, chemical resistance, and water resistance and has excellent storage stability of recorded materials.
本発明のもう一つの目的は、インクの表面張力を高く維
持し、インク吐出信頼性を確保し、高解像を記録が達成
でき、にじみを抑えた高品位な印字品質を得ることがで
きる水性記録用インクを提供することにある。Another object of the present invention is to maintain a high surface tension of ink, ensure ink ejection reliability, achieve high resolution recording, and obtain high quality print quality with reduced bleeding. Our objective is to provide recording ink.
本発明のもう一つの目的は、保存時においてインク中の
カーボンブラックの凝集が発生せす、安定性の優れた水
性記録用インクを提供することにある。Another object of the present invention is to provide a highly stable aqueous recording ink that does not cause agglomeration of carbon black in the ink during storage.
1課題を解決するための手段1
本発明の水性記録用インクは、少なくともpH6以下の
カーボンブラックと、下記一般式で表される、特定の有
機アミン類からなることを特徴とする。Means for Solving the Problem 1 The aqueous recording ink of the present invention is characterized by comprising at least carbon black having a pH of 6 or less and a specific organic amine represented by the following general formula.
\
N−C2H4−OH
/
式中R1は、水素、低級アルキル基、または低級ヒドロ
キシアルキル基からなる群から選ばれる、少なくとも1
種の置換基である。R2は、水素、低級アルキル基から
なる郡から選ばれる、少なくとも1種の置換基である。\ N-C2H4-OH / In the formula, R1 is at least one selected from the group consisting of hydrogen, a lower alkyl group, or a lower hydroxyalkyl group.
It is a substituent of a species. R2 is at least one substituent selected from the group consisting of hydrogen and lower alkyl groups.
また本明細書中で低級アルキル基とは、炭素数1〜6の
直鎖または分岐鎖のアルキル基をいう。さらにインクの
表面張力が、25°Cで45 d y n / c m
以上であることを特徴とする。Moreover, in this specification, a lower alkyl group refers to a straight chain or branched alkyl group having 1 to 6 carbon atoms. Furthermore, the surface tension of the ink is 45 dyn/cm at 25°C.
It is characterized by the above.
[実施例]
以下、本発明の実施例を詳細に説明する。従来からイン
ク用溶媒としては、低粘度であること、安全性に優れる
こと、取扱が容易であること、コストが安いこと、臭気
が無いこと等の理由より主に水が用いられている。また
緒特性の向上を目的として、エタノール、プロパツール
等のアルコール類、エチレングリコール、ジエチレング
リコール、グリセリン等の多価アルコール類、あるいは
それらのエーテル化物、エステル化物等の水溶性有機溶
剤を橋加することができる。[Examples] Examples of the present invention will be described in detail below. Conventionally, water has been mainly used as a solvent for ink because of its low viscosity, excellent safety, ease of handling, low cost, and lack of odor. In addition, for the purpose of improving the properties of water-soluble organic solvents, such as alcohols such as ethanol and propatool, polyhydric alcohols such as ethylene glycol, diethylene glycol, and glycerin, or their ethers and esters. I can do it.
着色剤であるカーボンブラックは、主溶媒である水との
親和性が良いことが望まれ、その表面に水酸基、カルボ
キシル基、スルホン基等の親水性官能基を有するか、親
水性官能基を有する物質による被膜層が多いものであり
、pHが6以下のものを用いる。このカーボンブラック
のpHは以下の測定法により得られた値を言う。すなわ
ち、測定するカーボンブラック3gおよび蒸留水100
gをビーカーに入れ全重量を測定し、これを1時間煮沸
する。室温まで放冷後金重量を測定し、煮沸による減量
分の蒸留水を加え撹拌した後10分間静置し、上澄液の
pHをガラス電極式pHメーターで測定する。Carbon black, which is a coloring agent, is desired to have good affinity with water, which is the main solvent. It has many coating layers of substances and has a pH of 6 or less. The pH of this carbon black refers to a value obtained by the following measuring method. That is, 3 g of carbon black to be measured and 100 g of distilled water
g into a beaker, measure the total weight, and boil this for 1 hour. After cooling to room temperature, the weight of the gold was measured, distilled water was added in an amount equal to the weight loss due to boiling, the mixture was stirred and allowed to stand for 10 minutes, and the pH of the supernatant liquid was measured using a glass electrode pH meter.
上記の測定法によりpHが6以下である市販のカーボン
ブラックは、例えば三菱化成工業社登録商標92400
B、#2350、#2200B、# 1000、MAl
oo、MA7、MA8、MAll、デグサ社登録商標ス
ペシャルブラック5502 スペシャルブラック35
0、スペシャルブラック250、スペシャルブラック1
00、プリンテックス150T、プリンテックスU、プ
リンテックスV、プリンテックス140U、プリンテッ
クス140v、コロンビャンカーボン社登録商標 −
ラーヘン1255、ラーベン1200、ラーベン117
0、ラーベン1060、ラーベン1040、ラーペン1
030、キャボット社登録商標モナーク1300、モー
ガルL5 リーガル400、パルカンXC−72等使
用することができるが、本発明のpH6u下のカーボン
ブラックは、上記市販のものに限定されず、各種の酸化
剤、およびプラズマ処理等の表面改質法により処理され
、pHが6以下になったものも使用できる。またその添
加量はインク全重量に対して1〜30重量%が好ましい
が、さらには3〜12重量%がより好ましい。Commercially available carbon black whose pH is 6 or less by the above measurement method is, for example, Mitsubishi Chemical Industries, Ltd. registered trademark 92400.
B, #2350, #2200B, #1000, MAl
oo, MA7, MA8, MAll, Degussa registered trademark Special Black 5502 Special Black 35
0, Special Black 250, Special Black 1
00, Printex 150T, Printex U, Printex V, Printex 140U, Printex 140v, registered trademark of Columbia Carbon Co., Ltd. -
Raben 1255, Raben 1200, Raben 117
0, Raben 1060, Raben 1040, Rapen 1
030, Cabot Registered Trademark Monarch 1300, Mogul L5 Regal 400, Palcan Also, those treated with a surface modification method such as plasma treatment and whose pH has become 6 or less can also be used. The amount added is preferably 1 to 30% by weight, more preferably 3 to 12% by weight based on the total weight of the ink.
本発明では、通常の炭化水素系界面活性剤では、インク
の表面張力を低下させるので好ましくなく高分子分散剤
を用いる。高分子分散剤としては、ゼラチン、カゼイン
等のタンパク質、アラビアゴム等の天然ゴム、サポニン
等のグルコキシド、メチルセルロース、カルボキシメチ
ルセルロース、ヒドロキシメチルセルロース等のセルロ
ース誘導体、リグニンスルホン酸塩、セラック等の天然
高分子、ポリアクリル酸塩、スチレン−アクリル酸共重
合物塩、ビニルナフタレン−アクリル酸共重合物塩、ス
チレン−マレイン酸共重合物塩、ビニルナフタレン−マ
レイン酸共重合物塩、β−ナフタレンスルホン酸ホルマ
リン縮合物のナトリウム塩、ポリリン酸等の陰イオン性
高分子、ポリビニルアルコール、ポリビニルピロリドン
、ポリエチレングリコール等の非イオン性高分子であり
、これらの内1種、または2種以上を混合して用いるこ
とができる。その添加量はインク全重量に対し、0.0
5〜30重量%が好ましいが、さらに好ましくは0゜1
〜15重量%である。In the present invention, a polymer dispersant is used instead of a typical hydrocarbon surfactant because it lowers the surface tension of the ink. Examples of polymeric dispersants include proteins such as gelatin and casein, natural gums such as gum arabic, glucoxides such as saponin, cellulose derivatives such as methylcellulose, carboxymethylcellulose, and hydroxymethylcellulose, natural polymers such as lignin sulfonate, and shellac. Polyacrylate, styrene-acrylic acid copolymer salt, vinylnaphthalene-acrylic acid copolymer salt, styrene-maleic acid copolymer salt, vinylnaphthalene-maleic acid copolymer salt, β-naphthalenesulfonic acid formalin condensation Anionic polymers such as sodium salts of polyphosphoric acid, polyphosphoric acid, nonionic polymers such as polyvinyl alcohol, polyvinylpyrrolidone, and polyethylene glycol, and one type or a mixture of two or more of these can be used. can. The amount added is 0.0 based on the total weight of the ink.
It is preferably 5 to 30% by weight, more preferably 0°1
~15% by weight.
さらにカーボンブラックを紙上で定着させる成分として
前記高分子分散剤や、アクリルスチレン系の水性エマル
ジョンを添加するのは好ましい。Furthermore, it is preferable to add the above-mentioned polymer dispersant or an aqueous acrylic styrene emulsion as a component for fixing carbon black on paper.
カーボンブラックの定着用に樹脂成分を用いるときは、
顔料添加量に対し5重量%以上好ましくは20重量%以
上樹樹脂分を添加するのが好ましい。When using a resin component for fixing carbon black,
It is preferable to add a resin content of 5% by weight or more, preferably 20% by weight or more, based on the amount of pigment added.
また本発明に用いられる特定の有機アミン類は一般式
%式%
で表されるモノ、ジェタノールアミン類であり、例えば
N、 N−ジメチルエタノールアミン、N。Further, specific organic amines used in the present invention are mono- and jetanolamines represented by the general formula %, such as N,N-dimethylethanolamine, N-dimethylethanolamine, and N-dimethylethanolamine.
N−ジエチルエタノールアミン、N、 N−ジプロピ
ルエタノールアミン、N、 N−ジブチルエタノール
アミン、N−メチルエタノールアミン、N−メチルジェ
タノールアミン等である。These include N-diethylethanolamine, N,N-dipropylethanolamine, N,N-dibutylethanolamine, N-methylethanolamine, and N-methyljetanolamine.
有機アミン類の作用としては、次のことが考えられる。The following may be considered as the effects of organic amines.
すなわち、インクのpHが6以下の場合、分散状態にあ
るカーボンブラックの電気的な反発力が低下することが
予想され、分散状態が不安定になり、特に環境温度の変
化により粒子の凝集が発生しやすくなる。また、pH1
0以上の場合は高分子分散剤の保護コロイド作用を妨げ
沈澱を生じたり、分散安定性を阻害し、インク性能の劣
化を誘発する可能性がある。さらに本発明のインクは人
体に触れる可能性の高いので、安全性の面からpHを中
性付近に調整するのが好ましく、有機アミン類の添加量
が少ない場合、あるいは多い場合インクが適当なpH値
に調整されない。そこでその添加量は、インク全重量に
対し、0.01〜10重量%が好ましい。In other words, if the pH of the ink is 6 or less, it is expected that the electrical repulsion of the carbon black in the dispersed state will decrease, making the dispersion state unstable and causing particle aggregation, especially due to changes in the environmental temperature. It becomes easier. Also, pH1
If it is 0 or more, the protective colloid action of the polymeric dispersant may be hindered, resulting in precipitation, dispersion stability may be inhibited, and ink performance may deteriorate. Furthermore, since the ink of the present invention has a high possibility of coming into contact with the human body, it is preferable to adjust the pH to around neutrality from the viewpoint of safety. not adjusted to the value. Therefore, the amount added is preferably 0.01 to 10% by weight based on the total weight of the ink.
以上の他、安息香酸、ジクロロフェン、ヘキサクロロフ
ェン、ソルビン酸、p−ヒドロキシ安息香酸エステル、
エチレンジアミン四酢酸(EDTA)等を防カビ剤、防
腐剤、防錆剤として含有することができる。さらにノズ
ル乾燥防止の目的で尿素、チオ尿素、エチレン尿素等含
有することができる。In addition to the above, benzoic acid, dichlorophene, hexachlorophene, sorbic acid, p-hydroxybenzoic acid ester,
Ethylenediaminetetraacetic acid (EDTA) and the like can be contained as a fungicide, preservative, and rust preventive. Furthermore, urea, thiourea, ethylene urea, etc. can be contained for the purpose of preventing nozzle drying.
本発明の実施例1〜6、および比較例1〜4のインク組
成を表1に示す。表1中の数値は、すべて重量%である
。Table 1 shows the ink compositions of Examples 1 to 6 of the present invention and Comparative Examples 1 to 4. All numerical values in Table 1 are weight %.
また、用いたpH6以下のカーボンブラックは、ラーベ
ン1225、ラーベン1250 (コロンピャンカーボ
ン社登録商標)、MAloo(三菱化成工業社登録商標
)、比較例として用いたp H8゜0のカーボンブラッ
ク#950 (三菱化成工業社登録商標)である。In addition, the carbon blacks with a pH of 6 or less used were Raven 1225, Raven 1250 (registered trademark of Colombian Carbon Co., Ltd.), MAloo (registered trademark of Mitsubishi Chemical Industries, Ltd.), and carbon black #950 with a pH of 8°0 used as a comparative example. (Mitsubishi Chemical Industries, Ltd. registered trademark).
さらに分散剤として用いているデンカポバールB−03
(電気化学工業社登録商標)は、部分けん化ポリビニル
アルコール、ラベリンFHL (第−工業製薬社登録商
標)は、β−ナフタレンスルホン酸ホルマリン縮合物の
ナトリウム塩、ジョンクリル−615(ジョンソン社登
録商標)は、スチレン−アクリル酸共重合物の塩30.
5%水溶液、セラックGBN(岐阜セラック製造所登録
商標)は、セラック樹脂である。Furthermore, Denkapoval B-03 is used as a dispersant.
(registered trademark of Denki Kagaku Kogyo Co., Ltd.) is partially saponified polyvinyl alcohol, Labelin FHL (registered trademark of Dai-Kogyo Seiyaku Co., Ltd.) is sodium salt of β-naphthalene sulfonic acid formalin condensate, Joncryl-615 (registered trademark of Johnson Co., Ltd.) is a salt of styrene-acrylic acid copolymer 30.
A 5% aqueous solution, Shellac GBN (registered trademark of Gifu Shellac Seisakusho), is a shellac resin.
分散剤としてジオクチルスルホコハク酸ナトリウムであ
るサンセパラ100(三洋化成社登録商標)を比較例4
に用いた。Comparative Example 4: Sansepara 100 (registered trademark of Sanyo Chemical Co., Ltd.), which is sodium dioctyl sulfosuccinate, was used as a dispersant.
It was used for.
各インクサンプルは、先ず純水に所定量の2倍の量の有
機アミン類、または分散剤を溶解させ、完全溶解後カー
ボンブラックを同様に2倍の添加量で加える。この分散
剤、カーボンブラック混合液をミキサーで2時間撹拌、
混合し、その後サンドミルを用いて8時間分散させる。For each ink sample, first, twice the predetermined amount of organic amines or dispersant is dissolved in pure water, and after complete dissolution, twice the amount of carbon black is added. This dispersant and carbon black mixture was stirred for 2 hours with a mixer.
Mix and then disperse using a sand mill for 8 hours.
その後、巨大粒子を除くため東洋濾紙No2で2kg/
Cm2の圧力で加圧濾過し、分散液を得る。次にこの分
散液を純水で希釈し所定の組成になるようにインクサン
プルを作成した。After that, to remove large particles, 2kg/2kg was added using Toyo Roshi No. 2.
A dispersion liquid is obtained by pressure filtration at a pressure of Cm2. Next, this dispersion liquid was diluted with pure water to prepare an ink sample so as to have a predetermined composition.
こうして得られた実施例1〜6、比較例1〜4のインク
サンプルについて、HVL−3T形表面張力計(協和界
面和学社製)を用いて25°Cにおけるインクの表面張
力を測定し、堀場製作所製ガラス電極式pHメータで同
じく25℃におけるpHを測定し、さらに吐出ノズル径
50μm、圧電素子駆動電圧150V、駆動周波数2k
Hz、解像度300ドツト/インチの試作9ノズル評価
機を用いて、印字サンプルの200倍の顕微鏡観察によ
る印字品質評価、24時間連続印字中のドツト抜けの有
無をyl査する連続吐出安定性評価を行った。吐出イン
ク重量は、0.18μg/dot。Regarding the ink samples of Examples 1 to 6 and Comparative Examples 1 to 4 thus obtained, the surface tension of the ink at 25°C was measured using an HVL-3T type surface tension meter (manufactured by Kyowa Kaimenwa Gakusha), The pH at 25°C was also measured using a glass electrode pH meter manufactured by Horiba, and the discharge nozzle diameter was 50 μm, piezoelectric element driving voltage was 150 V, and driving frequency was 2 k.
Using a prototype 9-nozzle evaluation machine with a resolution of 300 dots/inch at Hz, we evaluated the print quality by observing the print sample under a microscope at 200x magnification, and evaluated the continuous ejection stability by checking whether there were any missing dots during 24-hour continuous printing. went. The weight of the ejected ink was 0.18 μg/dot.
インク吐出速度は、5 m / sであった。またガラ
ス製サンプル瓶密閉中における環境温度70°C2湿度
85%30日間の恒温恒温槽中でのカーボンブラック粒
子の凝集度合を、顕微鏡観察によって調査する保存安定
性評価を行った。結果を表2に示す。The ink ejection speed was 5 m/s. In addition, storage stability was evaluated by examining the degree of aggregation of carbon black particles by microscopic observation in a thermostatic chamber at an ambient temperature of 70° C. and humidity of 85% for 30 days in a sealed glass sample bottle. The results are shown in Table 2.
表2
なお記録紙にはゼロックス社PPC用紙を用いた。また
表2中の記号は、各評価結果を基に、O:問題無い、△
:若千問題がある、×:明らかに問題がある、の三段階
の主観評価の結果を示す。Table 2 Note that Xerox PPC paper was used as the recording paper. Also, the symbols in Table 2 are based on each evaluation result: O: No problem, △
Shows the results of a three-level subjective evaluation: : There is a Wakachi problem, ×: There is a clear problem.
表面張力の単位は、d y n / c mである。The unit of surface tension is dyn/cm.
実施例1〜6のインクサンプルは、いずれも今回実施し
た全ての評価でにじみの無い高印字品質で、吐出時、長
期保存時の分散安定性も十分な結果が得られた。しかし
、比較例1の様にpH6より大きいカーボンブラックを
用いたインクサンプルでは、有機アミン類の分散安定性
に対する効果が少なく、吐出時のノズル目詰まりや、保
存時にカーボンブラックの凝集が観察された。また比較
例2の様に有機アミン類の中でも2級以上のエタノール
アミン類を過剰量加えたインクは、インク粘度が上昇し
易いので、このような場合には、モノエタノールアミン
類を添加するべきである。さらに比較例3の様に有機ア
ミン類を含まないインクサンプルでは、インクのpHが
8より大きくなり、短期間の分散安定性は良好であって
も、長期間の分散安定性が確保できず、保存安定性評価
においても、カーボンブラックの凝集が観察された。All of the ink samples of Examples 1 to 6 had high printing quality without bleeding in all evaluations conducted this time, and sufficient results were obtained in terms of dispersion stability during ejection and long-term storage. However, ink samples using carbon black with a pH higher than 6 as in Comparative Example 1 had little effect on the dispersion stability of organic amines, and nozzle clogging during ejection and aggregation of carbon black during storage were observed. . In addition, as in Comparative Example 2, ink containing an excessive amount of secondary or higher grade ethanolamines among organic amines tends to increase ink viscosity, so in such cases, monoethanolamines should be added. It is. Furthermore, in an ink sample that does not contain organic amines like Comparative Example 3, the pH of the ink is higher than 8, and even if short-term dispersion stability is good, long-term dispersion stability cannot be ensured. Agglomeration of carbon black was also observed in the storage stability evaluation.
これはインク保存中に空気中の炭酸ガスの影響で、イン
クpHが次第に低下するのが原因と考えられる。カーボ
ンブラックの濡れ性、分散性の改善のために炭化水素系
アニオン界面活性剤を添加した比較例4は、保存安定性
に優れるものの、インク表面張力が45 d y n
/ c mより低下し、インク吐出時不良を起こし、ま
た紙に対してにじみ広がり印字品質が悪化した。This is thought to be because the pH of the ink gradually decreases due to the influence of carbon dioxide gas in the air during storage of the ink. Comparative Example 4, in which a hydrocarbon-based anionic surfactant was added to improve the wettability and dispersibility of carbon black, had excellent storage stability, but the ink surface tension was 45 d y n
/ cm, causing defects during ink ejection, and bleeding and spreading on paper, deteriorating print quality.
以上、本発明の実施例を詳細に説明したが、本発明の水
性記録用インクはこれらの構成、材料、製造方法に限定
されるのものではない。Although the embodiments of the present invention have been described in detail above, the aqueous recording ink of the present invention is not limited to these configurations, materials, and manufacturing methods.
[発明の効果1
本発明によれば、インクジェットプリンタに供する水性
記録用インクにおいて、カーボンブラックの持つ耐光性
、耐薬品性、耐水性を活かした高い記録物保存性を有す
る水性記録用インクを提供できるという効果を有する。[Effect of the Invention 1] According to the present invention, an aqueous recording ink for use in an inkjet printer is provided, which has a high recording preservation property by taking advantage of the light resistance, chemical resistance, and water resistance of carbon black. It has the effect of being able to.
また普通紙に対しノズル目詰まりを防止して吐出信頼性
を確保し、高解像を記録が達成でき、高品位な印字品質
を得る水性記録用インクを提供することができるという
効果を有する。Furthermore, it is possible to provide an aqueous recording ink that prevents nozzle clogging on plain paper, ensures ejection reliability, achieves high resolution recording, and provides high quality print quality.
さらに、長期保存時においても、インク中のカーボンブ
ラックの凝集が発生せず、安定性の優れた水性記録用イ
ンクを提供することができるという効果を有する。Furthermore, even during long-term storage, carbon black in the ink does not aggregate, making it possible to provide an aqueous recording ink with excellent stability.
Claims (2)
記一般式で表される、特定の有機アミン類からなること
を特徴とする水性記録用インク。 ▲数式、化学式、表等があります▼ 式中R^1は、水素、低級アルキル基、または低級ヒド
ロキシアルキル基からなる群から選ばれる、少なくとも
1種の置換基である。R^2は、水素、低級アルキル基
からなる郡から選ばれる、少なくとも1種の置換基であ
る。また本明細書中で低級アルキル基とは、炭素数1〜
6の直鎖または分岐鎖のアルキル基をいう。(1) An aqueous recording ink characterized by comprising carbon black having a pH of at least 6 or less and a specific organic amine represented by the following general formula. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ In the formula, R^1 is at least one substituent selected from the group consisting of hydrogen, a lower alkyl group, or a lower hydroxyalkyl group. R^2 is at least one substituent selected from the group consisting of hydrogen and lower alkyl groups. In addition, in this specification, a lower alkyl group has 1 to 1 carbon atoms.
6 straight chain or branched alkyl group.
以上であることを特徴とする請求項1記載の水性記録用
インク。(2) The surface tension of the ink is 45 dyn/cm at 25°C
The aqueous recording ink according to claim 1, characterized in that it has the above properties.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31882990A JP2998199B2 (en) | 1990-11-22 | 1990-11-22 | Aqueous recording ink |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31882990A JP2998199B2 (en) | 1990-11-22 | 1990-11-22 | Aqueous recording ink |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04189878A true JPH04189878A (en) | 1992-07-08 |
JP2998199B2 JP2998199B2 (en) | 2000-01-11 |
Family
ID=18103422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31882990A Expired - Fee Related JP2998199B2 (en) | 1990-11-22 | 1990-11-22 | Aqueous recording ink |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2998199B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5919294A (en) * | 1996-04-30 | 1999-07-06 | Mitsubishi Chemical Corporation | Recording liquid |
US8491236B2 (en) | 2009-10-21 | 2013-07-23 | Toyota Jidosha Kabushiki Kaisha | Tooth plane machining method |
-
1990
- 1990-11-22 JP JP31882990A patent/JP2998199B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5919294A (en) * | 1996-04-30 | 1999-07-06 | Mitsubishi Chemical Corporation | Recording liquid |
US8491236B2 (en) | 2009-10-21 | 2013-07-23 | Toyota Jidosha Kabushiki Kaisha | Tooth plane machining method |
Also Published As
Publication number | Publication date |
---|---|
JP2998199B2 (en) | 2000-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5667569A (en) | Water-based ink and ink jet recording method using same | |
JP3079569B2 (en) | Aqueous recording ink | |
JPS5936174A (en) | Water-based ink for ink jet recording | |
JP6641653B2 (en) | Inkjet ink | |
KR20070070288A (en) | Aqueous, colloidal gas black suspension | |
JP4662590B2 (en) | Aqueous pigment ink composition and ink jet recording method using the ink composition | |
JPH04359072A (en) | Ink composition for aqueous recording | |
JP2995859B2 (en) | Aqueous recording ink composition | |
JPH09194775A (en) | Ink jet ink and its production | |
JP2004099800A (en) | Aqueous ink composition, process for producing it and method of forming image using aqueous ink composition | |
JPH04356570A (en) | Water-base recording ink | |
US8376644B2 (en) | Metallic ink and applicator for applying the ink | |
TW200936709A (en) | Non-ionic surfactant additives for improved particle stability in high organic inkjet inks | |
JPH04359071A (en) | Ink composition for aqueous recording | |
JP2980091B2 (en) | Manufacturing method of inkjet ink | |
JP4837901B2 (en) | Oil-based inkjet ink | |
JPH04189878A (en) | Water-based recording ink | |
JP3745539B2 (en) | Water-based pigment ink composition | |
JPH08259865A (en) | Ink jet recording ink | |
JP4158303B2 (en) | Water-based pigment ink for inkjet recording | |
JPH10237368A (en) | Production of ink jet ink | |
JP6718259B2 (en) | Aqueous ink composition for ballpoint pen | |
JP2004010870A (en) | Ink composition and inkjet recording method using the same | |
JP3033172B2 (en) | Aqueous recording ink | |
JPH05263029A (en) | Water-based recording ink |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071105 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081105 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091105 Year of fee payment: 10 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091105 Year of fee payment: 10 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101105 Year of fee payment: 11 |
|
LAPS | Cancellation because of no payment of annual fees |