JPH047372A - Recording liquid for ink jet printing - Google Patents

Recording liquid for ink jet printing

Info

Publication number
JPH047372A
JPH047372A JP2108294A JP10829490A JPH047372A JP H047372 A JPH047372 A JP H047372A JP 2108294 A JP2108294 A JP 2108294A JP 10829490 A JP10829490 A JP 10829490A JP H047372 A JPH047372 A JP H047372A
Authority
JP
Japan
Prior art keywords
recording liquid
formula
water
pigment
aqueous medium
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
Application number
JP2108294A
Other languages
Japanese (ja)
Other versions
JP2969775B2 (en
Inventor
Hiroshi Takimoto
滝本 浩
Tomio Yoneyama
富雄 米山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP10829490A priority Critical patent/JP2969775B2/en
Priority to EP91104257A priority patent/EP0448055B1/en
Priority to DE69115960T priority patent/DE69115960T2/en
Priority to US07/672,554 priority patent/US5125968A/en
Publication of JPH047372A publication Critical patent/JPH047372A/en
Application granted granted Critical
Publication of JP2969775B2 publication Critical patent/JP2969775B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PURPOSE:To obtain a recording liquid for ink jet printing capable of providing an image which is resistant to light and water, as well as improved in storage stability and discharge stability by compounding an aqueous medium, a pigment and a specific compound. CONSTITUTION:A recording liquid that contains an aqueous medium, a pigment and at least one compound represented by formula I (wherein R is 6-18 alkyl; (n) is 1 to 15; and M is Na or NH4). Specific examples of the compound represented by the formula I include those represented gy formula II and those represented by formula III. As the aqueous medium, it is preferable to employ water or a water-soluble organic solvent such as ethylene glycol, propylene glycol or diethylene glycol monomethyl ether. By adding 0.5 to 20wt.% of a surfactant to this recording liquid, the quick drying property and printing quality can be improved. By adding urea and caprolactam to this recording liquid, the discharge stability of this liquid can further be improved.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はインクジェット記録に適した顔料を用いた記録
液に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording liquid using a pigment suitable for inkjet recording.

〔従来の技術〕[Conventional technology]

インクジェット記録方式は騒音が少ないこと、ランニン
グコストが安いこと、カラー化が容易であること等の特
徴があり、近年急速に普及しつつある。インクジェット
記録に用いる記録液の着色剤としては、通常、酸性染料
、直接性染料等の水溶性染料が用いられているが、耐光
性、耐水性等堅牢性の面で十分とはいえず、改良が検討
されている。
The inkjet recording method is characterized by low noise, low running costs, and easy color printing, and has rapidly become popular in recent years. Water-soluble dyes such as acid dyes and direct dyes are usually used as colorants in recording liquids used in inkjet recording, but they are not sufficient in terms of fastness such as light fastness and water resistance, so improvements are needed. is being considered.

水溶性染料の耐光性、耐水性を改良するため、例えば特
開昭64−62372号、特開昭64−48873号、
特開昭64−16880号、特開昭63−289079
号等に記載されている如く、多くの提案がなされている
が未だ十分ではない。
In order to improve the light resistance and water resistance of water-soluble dyes, for example, JP-A-64-62372, JP-A-64-48873,
JP-A-64-16880, JP-A-63-289079
Although many proposals have been made, they are still insufficient.

一方、着色剤として顔料を用いる方法も古くから研究さ
れており、例えば特開昭47−12104号、特開昭5
6−147859号、特開昭56−147863号、特
開昭56−147869号、特開昭56−157468
号、特開昭57−21466号、特開昭62−7497
3号等、多くの出願がなされている。
On the other hand, methods using pigments as colorants have been studied for a long time, such as JP-A-47-12104 and JP-A-5.
6-147859, JP 56-147863, JP 56-147869, JP 56-157468
No., JP-A-57-21466, JP-A-62-7497
Many applications have been filed, including No. 3.

着色剤として顔料を用いた場合、耐光性、耐水性は、染
料に比べて格段に向上するものの記録液としての保存安
定性が劣るため実用化されるまでに至っていない。
When a pigment is used as a coloring agent, the light resistance and water resistance are significantly improved compared to dyes, but the storage stability as a recording liquid is poor, so it has not been put into practical use.

〔発明が解決しようとする課!1!] 本発明は記録した画像の耐光性、耐水性が高く、かつ記
録液としての保存安定性及び吐出安定性に優れたインク
ジェット用記録液の提供を目的とするものであり、この
目的は特定分散剤を用いることにより達せられるとの新
規な知見に基くものである。
[The problem that the invention attempts to solve! 1! ] The purpose of the present invention is to provide an inkjet recording liquid that has high light resistance and water resistance for recorded images, and has excellent storage stability and ejection stability as a recording liquid. This is based on the new finding that this can be achieved by using agents.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の要旨は、水性媒体、顔料及び下記−数式(1) (式中Rは、炭素数6〜18のアルキル基を表わし、n
は1〜15の整数を表わし、MはNa又はNH,を表わ
す、)で示される化合物の少なくとも1種を含有するイ
ンクジェット用記録液に存する。
The gist of the present invention is an aqueous medium, a pigment, and the following formula (1) (wherein R represents an alkyl group having 6 to 18 carbon atoms, and n
represents an integer from 1 to 15, and M represents Na or NH.

以下本発明の詳細な説明する。The present invention will be explained in detail below.

本発明の記録液において、顔料としては、アゾ系、フタ
ロシアニン系、キナクリドン系の他、カーボンブラック
が利用できるが、とりわけPigment  Yell
ow−74,−154、Pigment  Red−5
,−122、Pigment  Blue−15が好ま
しい。
In the recording liquid of the present invention, as the pigment, azo type, phthalocyanine type, quinacridone type, and carbon black can be used.
ow-74, -154, Pigment Red-5
, -122 and Pigment Blue-15 are preferred.

上記顔料の含有量としては、記録液全重量に対して0.
5〜105wt%の範囲、好ましくは1〜7wt%の範
囲が挙げられる。
The content of the above pigment is 0.0% based on the total weight of the recording liquid.
The range is 5 to 105 wt%, preferably 1 to 7 wt%.

本発明の記録液に用いられる水性媒体としては、水の他
、水溶性有機溶剤としてエチレングリコール、プロピレ
ングリコール、ブチレングリコール、ジエチレングリコ
ール、トリエチレングリコール、ポリエチレングリコー
ル(#200)、ポリエチレングリコール(#400)
、グリセリン、Nメチル−ピロリドン、N−エチル−ピ
ロリドン、N−ビニル−ピロリドン、1.3〜ジメチル
−イミダゾリジン、エチレングリコールモノアリルエー
テル、エチレングリコールモノメチルエーテル、ジエチ
レングリコールモノメチルエーテル等を含有しているの
が好ましく、これらの水溶性有機溶剤の含有量としては
、記録液全量に対し、0〜50重量%の範囲が挙げられ
る。
In addition to water, examples of the aqueous medium used in the recording liquid of the present invention include water-soluble organic solvents such as ethylene glycol, propylene glycol, butylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol (#200), and polyethylene glycol (#400).
, glycerin, N-methyl-pyrrolidone, N-ethyl-pyrrolidone, N-vinyl-pyrrolidone, 1.3-dimethyl-imidazolidine, ethylene glycol monoallyl ether, ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, etc. The content of these water-soluble organic solvents is preferably in the range of 0 to 50% by weight based on the total amount of the recording liquid.

本発明の記録液に分散剤として用いられる前記−数式(
1)の化合物としては 等が挙げられる。
The above formula used as a dispersant in the recording liquid of the present invention (
Examples of the compound 1) include the following.

尚、この様な化合物としてはNewcol  560S
F (商品名、日本乳化剤■製)、サンノールNP−1
930(商品名ライオン■製)等が市販されており、こ
れらを適宜利用することもできる。
In addition, as such a compound, Newcol 560S
F (trade name, manufactured by Nippon Nyukazai ■), Sunol NP-1
930 (trade name: manufactured by Lion ■) and the like are commercially available, and these can also be used as appropriate.

本発明の記録液において、これらの分散剤の含有量とし
ては顔料の重量に対して30〜100重量%の範囲、好
ましくは30〜70重蓋%の範囲が挙げられる。これら
の分散剤は単独で用いても良いが、数種併用することに
よってより一層の効果を得ることができる。
In the recording liquid of the present invention, the content of these dispersants is in the range of 30 to 100% by weight, preferably in the range of 30 to 70% by weight based on the weight of the pigment. These dispersants may be used alone, but even more effects can be obtained by using several of them in combination.

更に本発明の記録液に0.5〜20重量%の界面活性剤
を添加することにより印字後の速乾性及び印字品位を改
良することができる。
Furthermore, by adding 0.5 to 20% by weight of a surfactant to the recording liquid of the present invention, quick drying properties and print quality after printing can be improved.

又、本発明の記録液に尿素、カプロラクタムを添加する
ことにより吐出安定性を、更に改良することができる。
Further, by adding urea or caprolactam to the recording liquid of the present invention, the ejection stability can be further improved.

〔発明の効果〕〔Effect of the invention〕

本発明の記録液は、インクジェット記録用として用いら
れ、記録画像の耐光性、耐水性に優れている他、記録液
としての保存安定性及び吐出安定性も著しく良好である
The recording liquid of the present invention is used for inkjet recording, and has excellent light resistance and water resistance of recorded images, as well as extremely good storage stability and ejection stability as a recording liquid.

(実施例) 本発明を以下の実施例により更に詳細に説明するが、本
発明はこれら実施例により何等限定されるものではない
(Examples) The present invention will be explained in more detail with reference to the following examples, but the present invention is not limited by these examples in any way.

実施例1 記録液の組成        使用量(g)ポリエチレ
ングリコール(1200)    15NllL1の化
合物            1.5Pigment 
Red 122         4水       
       残量 合  計              100上記の各
成分を容器にとり平均0.5−麟径のガラスピーズ13
0+j!と共にサンドグラインダー(五十嵐機械製造■
製造)を用いて20時間粉砕処理を行った。孔径3μの
テフロンフィルターで加圧濾過したのち、真空ポンプ及
び超音波洗浄機を用いて脱気処理し記録液を調製した。
Example 1 Composition of recording liquid Amount used (g) Polyethylene glycol (1200) 15NllL1 compound 1.5Pigment
Red 122 4th water
Total remaining amount: 100 Place each of the above ingredients in a container and add 13 glass beads with an average diameter of 0.5 -
0+j! Along with the sand grinder (Igarashi Machinery Manufacturing)
The pulverization process was carried out for 20 hours using the following method. After pressure filtration using a Teflon filter with a pore size of 3 μm, deaeration treatment was performed using a vacuum pump and an ultrasonic cleaner to prepare a recording liquid.

得られた記録液を用いて、インクジェットプリンター(
10−735、シャープ株式会社製造)を用いて電子写
真用紙(富士ゼロックス■製造)にインクジェット記録
を行ない、下記(a)、 (b)及び(C)の方法に従
って、諸評価を行った。
Using the obtained recording liquid, inkjet printer (
Inkjet recording was performed on electrophotographic paper (manufactured by Fuji Xerox ■) using an inkjet paper (manufactured by Fuji Xerox Corporation), and various evaluations were performed according to the methods (a), (b), and (C) below.

(a)  記録画像の耐光性 キセノンフェードメーター(スガ試験機■製造)を用い
て印字物を100時間照射した後の変退色は小さかった
(a) Light resistance of recorded images After the printed matter was irradiated for 100 hours using a xenon fade meter (manufactured by Suga Shikenki ■), there was little discoloration or fading.

ら)保存安定性 記録液をテフロン容器に密閉し、60℃で2ケ月保存し
た後でもゲル化することなく、又、沈降物も認められな
かった。
(3) Storage stability Even after the recording liquid was sealed in a Teflon container and stored at 60°C for 2 months, no gelation occurred and no sediment was observed.

(C)  吐出安定性 室温下48時間の連続吐出を行ったが終始安定した高品
質の記録が行えた。
(C) Ejection Stability Continuous ejection was performed for 48 hours at room temperature, and stable high-quality recording was achieved from beginning to end.

比較例1 実施例1におけるN[11の化合物の代りにナフタレン
スルホン酸ホルマリン縮合物系分散剤であるディスコー
ル30(商品名、第一工業製薬■製)を用いて記録液を
調整し、実施例1と同様の評価を行った結果、60℃3
日で沈降物が生じ、室温下達続吐出においては15時間
で吐出不能となった。
Comparative Example 1 A recording liquid was prepared using Diskol 30 (trade name, manufactured by Daiichi Kogyo Seiyaku ■), which is a naphthalene sulfonic acid formalin condensate dispersant, in place of the compound of N[11 in Example 1, and the recording liquid was carried out. As a result of the same evaluation as in Example 1, 60℃3
Precipitates formed within 1 day, and it became impossible to discharge after 15 hours in continuous discharge at room temperature.

比較例2 実施例1における1lkllの化合物の代りにオキシエ
チレン・オキシプロピレンブロックポリマー型分散剤で
あるあプロノン204(商品名、日本油脂■製)を用い
て記録液を調整し、実施例1と同様の評価を行った結果
、60°C7日で沈降物を生じ、室温上連続吐出におい
ては20時間で吐出不能となった。
Comparative Example 2 A recording liquid was prepared using Apronone 204 (trade name, manufactured by NOF ■), which is an oxyethylene/oxypropylene block polymer type dispersant, in place of 1 lkll of the compound in Example 1. As a result of similar evaluation, sediment was formed after 7 days at 60°C, and discharging became impossible after 20 hours of continuous discharging at room temperature.

実施例2 記録液の組成        使用量(g)ジエチレン
グリコール       2ONa2の化合物    
        IPigment Blue  15
         3水             残
量 合   計              100上記組
成物を用い、実施例1と同様にして記録液を調整し、(
a)、 (b)、 (C)の諸評価を行った結果いずれ
も良好であった。
Example 2 Composition of recording liquid Amount used (g) Compound of diethylene glycol 2ONa2
IPigment Blue 15
3 Water Total remaining amount 100 Using the above composition, a recording liquid was prepared in the same manner as in Example 1, and (
The results of various evaluations of a), (b), and (C) were all favorable.

比較例3 実施例2におけるNo、 2の化合物の代りにポリスチ
レンスルホン酸ソーダ系分散剤であるポリナスPS−1
(商品名、東ソー■製)を用いて記録液を調整し、実施
例1と同様の評価を行った結果、60°C4日で沈降物
を生じ、又室温上連続吐出においては13時間で吐出不
能となった。
Comparative Example 3 Polynas PS-1, which is a polystyrene sulfonate sodium dispersant, was used instead of compound No. 2 in Example 2.
(trade name, manufactured by Tosoh ■) and evaluated in the same manner as in Example 1. As a result, sedimentation occurred after 4 days at 60°C, and when continuous ejection was performed at room temperature, it took 13 hours to eject. It became impossible.

実施例3 記録液の組成        使用量(g)グリセリン
           1゜Nα2の化合物     
       1. OPigment Yellow
 −742水              残量 合   計 実施例4 記録液の組成 Nα1の化合物 No、4の化合物 カーボンブラック ε−カプロラクタム 水 使用量(g) 1.5 1.5 残量 合   計              100上記実
施例3及び4のインク組成物を用い、実施例1と同様に
して記録液を調整し、諸評価を行った結果、実施例1と
同様いずれも良好であった。
Example 3 Composition of recording liquid Amount used (g) Glycerin 1°Nα2 compound
1. OPigment Yellow
-742 Water Total remaining amount Example 4 Recording liquid composition Nα1 Compound No. 4 Compound carbon black ε-caprolactam Water usage amount (g) 1.5 1.5 Total remaining amount 100 Above Examples 3 and 4 A recording liquid was prepared in the same manner as in Example 1 using the ink composition, and as a result of various evaluations, all results were good as in Example 1.

Claims (1)

【特許請求の範囲】[Claims] (1)水性媒体、顔料及び下記一般式〔 I 〕▲数式、
化学式、表等があります▼・・・〔 I 〕 (式中Rは、炭素数6〜18のアルキル基を表わし、n
は1〜15の整数を表わし、MはNa又はNH_4を表
わす。) で示される化合物の少なくとも1種を含有することを特
徴とするインクジェット用記録液。
(1) Aqueous medium, pigment and the following general formula [I]▲mathematical formula,
There are chemical formulas, tables, etc.▼...[I] (In the formula, R represents an alkyl group having 6 to 18 carbon atoms, and n
represents an integer from 1 to 15, and M represents Na or NH_4. ) An inkjet recording liquid characterized by containing at least one compound represented by the following.
JP10829490A 1990-03-20 1990-04-24 Inkjet recording liquid Expired - Lifetime JP2969775B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP10829490A JP2969775B2 (en) 1990-04-24 1990-04-24 Inkjet recording liquid
EP91104257A EP0448055B1 (en) 1990-03-20 1991-03-19 Recording liquid for ink jet recording
DE69115960T DE69115960T2 (en) 1990-03-20 1991-03-19 Recording liquid for ink jet recording
US07/672,554 US5125968A (en) 1990-03-20 1991-03-20 Recording liquid for ink jet recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10829490A JP2969775B2 (en) 1990-04-24 1990-04-24 Inkjet recording liquid

Publications (2)

Publication Number Publication Date
JPH047372A true JPH047372A (en) 1992-01-10
JP2969775B2 JP2969775B2 (en) 1999-11-02

Family

ID=14481035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10829490A Expired - Lifetime JP2969775B2 (en) 1990-03-20 1990-04-24 Inkjet recording liquid

Country Status (1)

Country Link
JP (1) JP2969775B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10195358A (en) * 1996-12-20 1998-07-28 Samsung Electron Co Ltd Ink composition for ink jet printer
JPH1112508A (en) * 1997-06-20 1999-01-19 Fuji Shikiso Kk Ink for ink jet printer
JP2002088286A (en) * 2000-07-14 2002-03-27 Ricoh Co Ltd Water-base ink
JP2003055590A (en) * 2001-08-21 2003-02-26 Ricoh Co Ltd Water-based ink

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10195358A (en) * 1996-12-20 1998-07-28 Samsung Electron Co Ltd Ink composition for ink jet printer
JPH1112508A (en) * 1997-06-20 1999-01-19 Fuji Shikiso Kk Ink for ink jet printer
JP2002088286A (en) * 2000-07-14 2002-03-27 Ricoh Co Ltd Water-base ink
JP2003055590A (en) * 2001-08-21 2003-02-26 Ricoh Co Ltd Water-based ink

Also Published As

Publication number Publication date
JP2969775B2 (en) 1999-11-02

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