JPH02103274A - water-based ink composition - Google Patents
water-based ink compositionInfo
- Publication number
- JPH02103274A JPH02103274A JP63255928A JP25592888A JPH02103274A JP H02103274 A JPH02103274 A JP H02103274A JP 63255928 A JP63255928 A JP 63255928A JP 25592888 A JP25592888 A JP 25592888A JP H02103274 A JPH02103274 A JP H02103274A
- Authority
- JP
- Japan
- Prior art keywords
- ink composition
- parts
- water
- based ink
- block copolymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は水性インキ組成物に関し、更に詳しくはインキ
ジェット（ＩＪ）用又は筆記具用のインキとして好適で
あり、紙上で優れた速乾性を示す水性インキ組成物を提
供する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to an aqueous ink composition, more specifically, it is suitable as an ink for inkjet (IJ) or writing instruments, and exhibits excellent quick-drying properties on paper. A water-based ink composition is provided.
（従来の技術）
従来、ＩＪ川用いは筆記具用のインキとして水を主媒体
とする水性インキか広く使用されている。これらの水性
インキ組成物はＩＪ用及び筆記具用としては若干の組成
上の相違か存在するが、数的には主媒体である水、ペン
先やノズルでの目詰りを防止するためのエチレングリコ
ールやグリセリン等の高沸点有機溶剤、染料や顔料の着
色剤、着色剤を被記録体に固着させるためのバインダー
（顔料の場合）、着色剤を安定に媒体中に分散させるた
めの分散剤や界面活性剤＜ｆＭｉ料の場合）、その他の
各種添加剤から構成されている。(Prior Art) Conventionally, water-based inks containing water as a main medium have been widely used as inks for writing instruments. These water-based ink compositions have some compositional differences for IJ and writing instruments, but numerically they contain water as the main medium and ethylene glycol to prevent clogging in the pen tip and nozzle. high-boiling organic solvents such as chlorine and glycerin, colorants such as dyes and pigments, binders to fix the colorants to the recording medium (in the case of pigments), dispersants and interfaces to stably disperse the colorants in the medium. (if activator<fMi material) and other various additives.
（発明が解決しようとしている問題点）上記水性インキ
組成物により紙等の吸収性被記録体に印字又は筆記する
場合の重要な特性としてはノズルやペン先でのインキの
乾燥及び目詰りの防止がある。これらの問題を解決する
目的で、水性インキ組成物中にはエチレングリコール等
の高沸点有機溶剤が添加されている。(Problem to be solved by the invention) When printing or writing on an absorbent recording medium such as paper using the above water-based ink composition, an important characteristic is prevention of ink drying and clogging at the nozzle or pen tip. There is. In order to solve these problems, high boiling point organic solvents such as ethylene glycol are added to aqueous ink compositions.
インキの別の重要な特性は紙上でのインキの乾燥性であ
り、紙上での乾燥性は速い程好まれるが、上述の通りイ
ンキ中には高沸点有機溶剤が存在するため蒸発による十
分な乾燥性は得られない。そのためインキの吸収性を向
上させて見掛は上の乾燥速度を高める方法がある。この
吸収性を高める方法として界面活性剤を用いる方法が行
われているが、界面活性剤を使用すると紙上でのインキ
の滲みの問題が発生するとともに、インキの粘度及び表
面張力に悪影響が現われ、ノズルでの吐出特性や作動特
性を悪化させるという問題が生じている。Another important characteristic of ink is its drying properties on paper, and the faster the drying properties on paper, the better, but as mentioned above, ink contains high-boiling organic solvents, so sufficient drying through evaporation is required. You can't get sex. Therefore, there is a method to increase the apparent drying speed by improving ink absorption. A method of increasing this absorption is to use surfactants, but using surfactants causes the problem of ink bleeding on paper and has a negative effect on the viscosity and surface tension of the ink. A problem has arisen in that the discharge characteristics and operating characteristics of the nozzle are deteriorated.
（問題点を解決するための手段）
本発明者は前記従来技術の問題を解決すべく鋭意研究の
結果、従来公知の水性インキ組成物に特定のブロックコ
ポリマーを添加することによって、インキの粘度、表面
張力等に悪影響することなく吸収特性に優れた水性イン
キ組成物が提供されることを見い出し本発明を完成した
。(Means for Solving the Problems) As a result of intensive research in order to solve the problems of the prior art, the present inventors found that by adding a specific block copolymer to a conventionally known aqueous ink composition, the viscosity of the ink could be improved. The present invention was completed based on the discovery that a water-based ink composition with excellent absorption properties without adversely affecting surface tension etc. can be provided.
すなわち、本発明は、水性媒体中に着色剤を含む水性イ
ンキ組成物に、親水性ポリマーセグメント（Ａ）と疎水
性ポリマーセグメント（Ｂ）とからなるＡ−Ｂ型ブロッ
クコポリマーを添加したことを特徴とする水性インキ組
成物である。That is, the present invention is characterized in that an A-B type block copolymer consisting of a hydrophilic polymer segment (A) and a hydrophobic polymer segment (B) is added to an aqueous ink composition containing a colorant in an aqueous medium. This is a water-based ink composition.
（作 用）
水性インキ組成物中に親水性ポリマーセグメント（Ａ）
と疎水性ポリマーセグメント（Ｂ）とからなるＡ−Ｂ型
ブロックコポリマーを添加することにより、インキの粘
度や表面張力に悪影響を及ぼすことなく、インキの乾燥
性を向上させることができる。(Function) Hydrophilic polymer segment (A) in the water-based ink composition
By adding an A-B type block copolymer consisting of a hydrophobic polymer segment (B) and a hydrophobic polymer segment (B), the drying properties of the ink can be improved without adversely affecting the viscosity or surface tension of the ink.
（好ましい実施態様）
次に好ましい実施態様を挙げて本発明を更に詳しく説明
する。(Preferred Embodiments) Next, the present invention will be described in more detail by citing preferred embodiments.
本発明において使用する液媒体は水と高沸点有機溶剤か
らなる。高沸点有機溶剤は、例えば、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、Ｎ−メチルピロリドン、ホルムアミド等のアミド
系溶剤、エチルセロソルブ、ブチルセロソルブ等のセロ
ソルブ系溶剤等であり、従来公知の水性インキ組成物に
用いられている高沸点有機溶剤はいずれも本発明におい
て使用される。これらの高沸点有機溶剤は水１００重量
部当り約７０乃至１２０重量部の割合で使用するのが好
ましい。The liquid medium used in the present invention consists of water and a high-boiling organic solvent. Examples of high-boiling organic solvents include polyhydric alcohols such as ethylene glycol, diethylene glycol, and glycerin, amide solvents such as N-methylpyrrolidone and formamide, and cellosolve solvents such as ethyl cellosolve and butyl cellosolve. Any high boiling point organic solvent used in the composition may be used in the present invention. These high boiling point organic solvents are preferably used in an amount of about 70 to 120 parts by weight per 100 parts by weight of water.
本発明で使用する着色剤は染料又は顔料であり、従来、
水性インキ組成物の着色剤として用いられている染料又
は顔料はいずれも本発明で使用することができる。着色
剤として染料を用いる場合には、染料は液媒体中で約０
．３乃至３ｍｍ％の濃度で使用するのが好ましい。一方
、着色剤として顔料を用いる場合には顔料は液媒体中で
約３乃至１０重量％の濃度で用いるのが好ましい。The coloring agent used in the present invention is a dye or a pigment, and conventionally,
Any dye or pigment used as a colorant in aqueous ink compositions can be used in the present invention. When using a dye as a colorant, the dye has a concentration of about 0 in the liquid medium.
．． Preferably, it is used at a concentration of 3 to 3 mm%. On the other hand, when a pigment is used as a coloring agent, the pigment is preferably used in a concentration of about 3 to 10% by weight in the liquid medium.
着色剤として顔料を用いる場合には、顔料の分散安定性
を保持するために分散剤や界面活性剤を用いることがで
き、又、顔料を紙に接着させるバインダーとして水溶性
樹脂を用いることができ、この水溶性樹脂は分散剤を兼
ねることができる。When using pigments as colorants, dispersants and surfactants can be used to maintain the dispersion stability of the pigments, and water-soluble resins can be used as binders to adhere the pigments to paper. , this water-soluble resin can also serve as a dispersant.
これらの分散剤、界面活性剤或いはバインダーは顔料１
００重量部当り約３０乃至１００ｆｆｌ量部の割合で用
いるのが好ましい。その他必要に応して種々の添加剤を
含み得る。These dispersants, surfactants or binders are pigment 1
Preferably, it is used in a proportion of about 30 to 100 parts by weight per 00 parts by weight. It may also contain various other additives if necessary.
本発明で使用し、主として本発明を特徴づけるＡ−Ｂ型
ブロックコポリマーとは、アクリル酸エステル、スチレ
ン、酢酸ビニル、エチレン、プロピレン等の如き千ツマ
−からなる疎水性ポリマーセグメントと、エチレンオキ
サイド、アクリル酸、メタクリル酸、マレイン酸等の親
水性モノマーからなる親水性ポリマーセグメントとから
なるブロックコポリマーであり、例えば、モディパーＨ
シリーズの商品名で市場から人手して使用することがで
きる。The A-B type block copolymer used in the present invention and which mainly characterizes the present invention is a hydrophobic polymer segment consisting of 1,000 polymers such as acrylic ester, styrene, vinyl acetate, ethylene, propylene, etc., and ethylene oxide, It is a block copolymer consisting of a hydrophilic polymer segment consisting of a hydrophilic monomer such as acrylic acid, methacrylic acid, or maleic acid.
It can be used manually from the market with the product name of the series.
このようなＡ−Ｂ型ブロックコポリマーは前記水性イン
キ組成物１００重量部当り０．０５乃至３重量部の割合
で使用するのか好ましく、使用量かｏ、ｏｓｆｆｔＩｉ
部未満では添加の効果が不十分であり、一方、３重量部
を超えるとインキの粘度、表面張力等に悪影響が生じる
ので好ましくない。Such A-B type block copolymer is preferably used in a proportion of 0.05 to 3 parts by weight per 100 parts by weight of the aqueous ink composition, and the amount used is o, osfftIi
If the amount is less than 3 parts by weight, the effect of the addition will be insufficient, while if it exceeds 3 parts by weight, the viscosity, surface tension, etc. of the ink will be adversely affected, which is not preferable.
本発明の水性インキ組成物は以上の如き成分からなり、
着色剤が水溶性染料である場合には、必要成分を十分に
混合し、不溶分を除去するのみで製造することかでき、
一方、着色剤が顔料である場合には、必要成分を混合し
て顔料を分散処理し、且つ粗大粒子を除去することによ
って調製することができる。勿論、各成分の混合順序は
任意でよい。The aqueous ink composition of the present invention comprises the above components,
If the coloring agent is a water-soluble dye, it can be manufactured by simply mixing the necessary components thoroughly and removing the insoluble components.
On the other hand, when the colorant is a pigment, it can be prepared by mixing the necessary components, dispersing the pigment, and removing coarse particles. Of course, the order of mixing each component may be arbitrary.
（効 果）
以上の如き本発明によれば、水性インキ組成物中に親水
性ポリマーセグメントと疎水性ポリマーセグメントとか
らなるＡ−Ｂ型ブロックコポリマーを添加することによ
り、インキの粘度や表面張力に悪影響を及ぼすことなく
、インキの乾燥性を向上させることができる。(Effects) According to the present invention as described above, by adding an A-B type block copolymer consisting of a hydrophilic polymer segment and a hydrophobic polymer segment to a water-based ink composition, the viscosity and surface tension of the ink can be improved. The drying properties of ink can be improved without any adverse effects.
（実Ｂ’ｆｘ例）
次に実施例を挙げて本発明を更に具体的に説明する。尚
、文中、部又は％とあるのは特に断りのない限り重は基
準である。(Example of Actual B'fx) Next, the present invention will be described in more detail with reference to Examples. In addition, unless otherwise specified, parts or percentages in the text are based on weight.
実施例１
カーボンブラック（商品名 カーボンブラック＃１Ｏｆ
ｌＯ１三菱化成製） １００部水溶性アクリ
ル樹脂（商品名 オキシラック５Ｈ−１０１、日本触媒
化学製） ５２部水
１６０部ジエ ノールアミン
３３１５部
上記成分を混合し、ペイントコンディショナー（レット
デビル社製）で２時間分散処理し、超遠心分離機により
粗大粒子を除去して黒色の水性分Ｉ＆液を得た。この分
散液に対し、
エチレングリコール ２６０部ジエチレン
グリコール １１５部水
３３０部尿素
１００部を攪拌混合し、カーボン濃度９％
、粘度７．８ｃｐ（２５℃）及び表面張力３９゜５ｄｙ
ｎｅ／ｃｍの黒色水性インキ組成物を得た。Example 1 Carbon black (product name Carbon black #1Of
100 parts water-soluble acrylic resin (product name Oxyrac 5H-101, manufactured by Nippon Shokubai Chemical) 52 parts water
160 parts dienolamine
3315 parts of the above ingredients were mixed, dispersed for 2 hours using a paint conditioner (manufactured by Rhett Devil), and coarse particles were removed using an ultracentrifuge to obtain a black aqueous I& liquid. For this dispersion, 260 parts of ethylene glycol, 115 parts of diethylene glycol, and 115 parts of water.
330 parts urea
Stir and mix 100 parts to give a carbon concentration of 9%.
, viscosity 7.8cp (25°C) and surface tension 39°5dy
A black aqueous ink composition of ne/cm was obtained.
上記水性インキ組成物１００部に対しＡ−Ｂ型ブロック
コポリマー（商品名 モディパーＨＭ１８、固形分２５
％のメチルセロソルブ／酢酸エチル溶液、日本油脂５Ｊ
製）を添加混合し、下記第１表の本発明の水性インキ組
成物を得た。A-B type block copolymer (trade name: Modiper HM18, solid content: 25 parts) per 100 parts of the above water-based ink composition.
% methyl cellosolve/ethyl acetate solution, NOF 5J
A water-based ink composition of the present invention shown in Table 1 below was obtained.
こわらの水性インキ組成物を用いてＩＪママ−ングプリ
ンターによりダンボール紙に印字し、インキの滲み及び
乾燥時間を求めたところ下記第１表の結果が得られた。The aqueous ink composition of Kowara was used to print on cardboard paper using an IJ printing printer, and the ink bleeding and drying time were determined, and the results shown in Table 1 below were obtained.
尚、乾燥時間は印字後指でこすっても汚れを生じなくな
るまての時間である。Note that the drying time is the time required for no stains to occur even if rubbed with a finger after printing.
γ・、 １ −−・
１ ０．０５ ５．５５ ３８．６
０ ６０２ ０、＋１ ５．３５ ３
８．＋ ０ ６０３ ０．２５ ５．
７２ ３９．０ ０ ３０４ ＋、２
５ ７．２５ ３７．３ ０ ６０５
０ ５．７０ ３８．７ へ １２
０以上尚、Ｎｏ、 ５は比較例である。γ・, 1 --・ 1 0.05 5.55 38.6
0 602 0, +1 5.35 3
8. + 0 603 0.25 5.
72 39.0 0 304 +, 2
5 7.25 37.3 0 605
0 5.70 38.7 to 12
0 or more Note that No. 5 is a comparative example.
又、上記各インキをマーキングベンに充填し、同様にダ
ンボール紙に筆記した場合にも同様な結果か得られた。Similar results were also obtained when each of the above inks was filled into a marking pen and written on cardboard paper in the same manner.
実施例２
スピリットブラックＳＢ（オリエント化学製）
５部水
４７０部エチルアルコール
１００部エチレングリコール ３８
０部プロピレングリコール １００部１．０
５５部
上記成分を混合及び溶解し２昼夜放置する。その後この
インキを３μｍメンブランフィルタ−により減圧濾過を
行う。こねに所定量のＡ−Ｂ型ブロックコポリマー（商
品名 モディパ−１１Ｍ−１８、固形分２５％のメチル
セロソルブ／酢酸エチル溶液、日本油脂製製）を添加混
合し、下記第２表の本発明の水性インキ組成物を得た。Example 2 Spirit Black SB (manufactured by Orient Chemical)
5 parts water
470 parts ethyl alcohol
100 parts ethylene glycol 38
0 parts Propylene glycol 100 parts 1.0
55 parts The above ingredients were mixed and dissolved and left for 2 days and nights. Thereafter, this ink is filtered under reduced pressure using a 3 μm membrane filter. A predetermined amount of A-B type block copolymer (trade name: Modipa-11M-18, 25% solid content methyl cellosolve/ethyl acetate solution, manufactured by NOF Corporation) was added and mixed to the dough, and the mixture of the present invention shown in Table 2 below was added. A water-based ink composition was obtained.
（以下余白）(Margin below)
Claims (2)
親水性ポリマーセグメント（Ａ）と疎水性ポリマーセグ
メント（Ｂ）とからなるＡ−Ｂ型ブロックコポリマーを
添加したことを特徴とする水性インキ組成物。(1) In an aqueous ink composition containing a colorant in an aqueous medium,
An aqueous ink composition characterized by adding an AB type block copolymer consisting of a hydrophilic polymer segment (A) and a hydrophobic polymer segment (B).
ンキ組成物１００重量部当り０．０５乃至３．０重量部
の割合である請求項１に記載の水性インキ組成物。(2) The aqueous ink composition according to claim 1, wherein the amount of the AB type block copolymer added is 0.05 to 3.0 parts by weight per 100 parts by weight of the aqueous ink composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63255928A JPH02103274A (en) | 1988-10-13 | 1988-10-13 | water-based ink composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63255928A JPH02103274A (en) | 1988-10-13 | 1988-10-13 | water-based ink composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02103274A true JPH02103274A (en) | 1990-04-16 |
Family
ID=17285520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63255928A Pending JPH02103274A (en) | 1988-10-13 | 1988-10-13 | water-based ink composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02103274A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04227668A (en) * | 1990-04-11 | 1992-08-17 | E I Du Pont De Nemours & Co | Water-base pigment ink for ink jet printer |
| US5180425A (en) * | 1991-11-05 | 1993-01-19 | E. I. Du Pont De Nemours And Company | Aqueous ink jet inks containing polyol/alkylene oxide condensates as cosolvents |
| JPH05179183A (en) * | 1991-06-13 | 1993-07-20 | E I Du Pont De Nemours & Co | Ink containing water-base pigment, for ink jet printer |
| US5271765A (en) * | 1992-02-03 | 1993-12-21 | E. I. Du Pont De Nemours And Company | Aqueous cationic dye-based ink jet inks |
| US5272201A (en) * | 1990-04-11 | 1993-12-21 | E. I. Du Pont De Nemours And Company | Amine-containing block polymers for pigmented ink jet inks |
| JPH06220381A (en) * | 1992-12-22 | 1994-08-09 | E I Du Pont De Nemours & Co | Polyoxyalkylenamine derivative as co-solvent for water-base ink for ink jet printing |
| JPH06295066A (en) * | 1992-05-07 | 1994-10-21 | E I Du Pont De Nemours & Co | Photoimaging method using ink-jet print |
| US5416145A (en) * | 1992-03-02 | 1995-05-16 | E. I. Du Pont De Nemours And Company | Aqueous anionic dye based ink jet inks |
| WO1996028518A1 (en) * | 1995-03-15 | 1996-09-19 | Fujitsu Isotec Limited | Pigment ink for ink jet printer |
| US5609993A (en) * | 1991-04-17 | 1997-03-11 | Nippon Paint Co., Ltd. | Process for producing lithographic printing plate, photosensitive plate and aqueous ink composition therefor |
| EP0819738A3 (en) * | 1996-06-17 | 1998-07-08 | Xerox Corporation | Aqueous ink jet ink compositions |
| US5847026A (en) * | 1994-07-05 | 1998-12-08 | Brother Kogyo Kabushiki Kaisha | Recording ink containing pigment particles and polyvinyl pyrrolidone |
| US5859113A (en) * | 1997-07-17 | 1999-01-12 | E. I. Du Pont De Nemours And Company | Pigment dispersions containing hydroxylated AB-block polymer dispersant |
| US6040358A (en) * | 1996-12-27 | 2000-03-21 | E. I. Du Pont De Nemours And Company | Ink jet inks containing linear polymer additives |
| WO2003057783A1 (en) * | 2001-12-28 | 2003-07-17 | Sun Chemical Corporation | Solventless universal colorants |
| WO2003104339A1 (en) * | 2002-06-11 | 2003-12-18 | キヤノン株式会社 | Ink composition, process for producing the same, method of forming image therewith and image forming device |
| WO2005080513A1 (en) * | 2004-02-17 | 2005-09-01 | Fujifilm Imaging Colorants Limited | Ink jet ink composition comprising glycerol |
| WO2010013651A1 (en) * | 2008-07-28 | 2010-02-04 | 大日精化工業株式会社 | Aqueous pigment dispersion and applications thereof |
| JP2012036251A (en) * | 2010-08-04 | 2012-02-23 | Dainichiseika Color & Chem Mfg Co Ltd | Aqueous pigment dispersion for inkjet, and ink |
Citations (2)
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| JPS56147863A (en) * | 1980-04-17 | 1981-11-17 | Canon Inc | Recording by ink jetting |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5272201A (en) * | 1990-04-11 | 1993-12-21 | E. I. Du Pont De Nemours And Company | Amine-containing block polymers for pigmented ink jet inks |
| JPH04227668A (en) * | 1990-04-11 | 1992-08-17 | E I Du Pont De Nemours & Co | Water-base pigment ink for ink jet printer |
| US5609993A (en) * | 1991-04-17 | 1997-03-11 | Nippon Paint Co., Ltd. | Process for producing lithographic printing plate, photosensitive plate and aqueous ink composition therefor |
| JPH05179183A (en) * | 1991-06-13 | 1993-07-20 | E I Du Pont De Nemours & Co | Ink containing water-base pigment, for ink jet printer |
| US5180425A (en) * | 1991-11-05 | 1993-01-19 | E. I. Du Pont De Nemours And Company | Aqueous ink jet inks containing polyol/alkylene oxide condensates as cosolvents |
| US5271765A (en) * | 1992-02-03 | 1993-12-21 | E. I. Du Pont De Nemours And Company | Aqueous cationic dye-based ink jet inks |
| US5416145A (en) * | 1992-03-02 | 1995-05-16 | E. I. Du Pont De Nemours And Company | Aqueous anionic dye based ink jet inks |
| JPH06295066A (en) * | 1992-05-07 | 1994-10-21 | E I Du Pont De Nemours & Co | Photoimaging method using ink-jet print |
| JPH06220381A (en) * | 1992-12-22 | 1994-08-09 | E I Du Pont De Nemours & Co | Polyoxyalkylenamine derivative as co-solvent for water-base ink for ink jet printing |
| US5847026A (en) * | 1994-07-05 | 1998-12-08 | Brother Kogyo Kabushiki Kaisha | Recording ink containing pigment particles and polyvinyl pyrrolidone |
| GB2303376B (en) * | 1995-03-15 | 1999-04-21 | Fujitsu Isotec Ltd | Pigment-containing ink for ink-jet printers |
| GB2303376A (en) * | 1995-03-15 | 1997-02-19 | Fujitsu Isotec Ltd | Pigment ink for ink jet printer |
| WO1996028518A1 (en) * | 1995-03-15 | 1996-09-19 | Fujitsu Isotec Limited | Pigment ink for ink jet printer |
| EP0819738A3 (en) * | 1996-06-17 | 1998-07-08 | Xerox Corporation | Aqueous ink jet ink compositions |
| US6040358A (en) * | 1996-12-27 | 2000-03-21 | E. I. Du Pont De Nemours And Company | Ink jet inks containing linear polymer additives |
| US5859113A (en) * | 1997-07-17 | 1999-01-12 | E. I. Du Pont De Nemours And Company | Pigment dispersions containing hydroxylated AB-block polymer dispersant |
| US6187854B1 (en) | 1997-07-17 | 2001-02-13 | E. I. Du Pont De Nemours And Company | Pigment dispersions containing hydroxylated AB-block polymer dispersant |
| US6306521B1 (en) | 1997-07-17 | 2001-10-23 | E. I. Du Pont De Nemours And Company | Pigment dispersions containing hydroxylated AB-block polymer dispersant |
| US8105428B2 (en) | 2001-12-28 | 2012-01-31 | Sun Chemical Corporation | Solventless universal colorants |
| US7563835B2 (en) | 2001-12-28 | 2009-07-21 | Sun Chemical Corporation | Solventless universal colorants |
| WO2003057783A1 (en) * | 2001-12-28 | 2003-07-17 | Sun Chemical Corporation | Solventless universal colorants |
| WO2003104339A1 (en) * | 2002-06-11 | 2003-12-18 | キヤノン株式会社 | Ink composition, process for producing the same, method of forming image therewith and image forming device |
| WO2005080513A1 (en) * | 2004-02-17 | 2005-09-01 | Fujifilm Imaging Colorants Limited | Ink jet ink composition comprising glycerol |
| WO2010013651A1 (en) * | 2008-07-28 | 2010-02-04 | 大日精化工業株式会社 | Aqueous pigment dispersion and applications thereof |
| KR101428432B1 (en) * | 2008-07-28 | 2014-08-07 | 다이니치 세이카 고교 가부시키가이샤 | Method of producing high-molecular dispersant and aqueous pigment dispersion |
| JP5733608B2 (en) * | 2008-07-28 | 2015-06-10 | 大日精化工業株式会社 | Method for producing polymer dispersant |
| US9120948B2 (en) | 2008-07-28 | 2015-09-01 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Process for producing block polymer, coated pigment and aqueous pigment dispersion |
| JP2012036251A (en) * | 2010-08-04 | 2012-02-23 | Dainichiseika Color & Chem Mfg Co Ltd | Aqueous pigment dispersion for inkjet, and ink |
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