JPH04153279A - Ink for ink jet recording - Google Patents
Ink for ink jet recordingInfo
- Publication number
- JPH04153279A JPH04153279A JP2276722A JP27672290A JPH04153279A JP H04153279 A JPH04153279 A JP H04153279A JP 2276722 A JP2276722 A JP 2276722A JP 27672290 A JP27672290 A JP 27672290A JP H04153279 A JPH04153279 A JP H04153279A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- formula
- inkjet recording
- solvent
- present
- 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
- 239000003960 organic solvent Substances 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 125000000217 alkyl group Chemical group 0.000 claims abstract 2
- 125000002947 alkylene group Chemical group 0.000 claims abstract 2
- 239000002904 solvent Substances 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 7
- YCUVUDODLRLVIC-UHFFFAOYSA-N Sudan black B Chemical compound C1=CC(=C23)NC(C)(C)NC2=CC=CC3=C1N=NC(C1=CC=CC=C11)=CC=C1N=NC1=CC=CC=C1 YCUVUDODLRLVIC-UHFFFAOYSA-N 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 56
- 238000007639 printing Methods 0.000 description 17
- -1 methylpropylene diglycol Chemical compound 0.000 description 13
- 239000000975 dye Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000005456 alcohol based solvent Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- MZQZXSHFWDHNOW-UHFFFAOYSA-N 1-phenylpropane-1,2-diol Chemical compound CC(O)C(O)C1=CC=CC=C1 MZQZXSHFWDHNOW-UHFFFAOYSA-N 0.000 description 1
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 1
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- COBPKKZHLDDMTB-UHFFFAOYSA-N 2-[2-(2-butoxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCOCCOCCO COBPKKZHLDDMTB-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 1
- GCYHRYNSUGLLMA-UHFFFAOYSA-N 2-prop-2-enoxyethanol Chemical compound OCCOCC=C GCYHRYNSUGLLMA-UHFFFAOYSA-N 0.000 description 1
- HCGFUIQPSOCUHI-UHFFFAOYSA-N 2-propan-2-yloxyethanol Chemical compound CC(C)OCCO HCGFUIQPSOCUHI-UHFFFAOYSA-N 0.000 description 1
- YEYKMVJDLWJFOA-UHFFFAOYSA-N 2-propoxyethanol Chemical compound CCCOCCO YEYKMVJDLWJFOA-UHFFFAOYSA-N 0.000 description 1
- MFKRHJVUCZRDTF-UHFFFAOYSA-N 3-methoxy-3-methylbutan-1-ol Chemical compound COC(C)(C)CCO MFKRHJVUCZRDTF-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- OWBTYPJTUOEWEK-UHFFFAOYSA-N butane-2,3-diol Chemical compound CC(O)C(C)O OWBTYPJTUOEWEK-UHFFFAOYSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 239000004210 ether based solvent Substances 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
- 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
- 150000008282 halocarbons Chemical class 0.000 description 1
- VUVZASHBYYMLRC-UHFFFAOYSA-N heptane-2,3-diol Chemical compound CCCCC(O)C(C)O VUVZASHBYYMLRC-UHFFFAOYSA-N 0.000 description 1
- QCIYAEYRVFUFAP-UHFFFAOYSA-N hexane-2,3-diol Chemical compound CCCC(O)C(C)O QCIYAEYRVFUFAP-UHFFFAOYSA-N 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 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〕
本発明はインクジェットプリンターに用いるインクジェ
ット記録用インクに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an inkjet recording ink used in an inkjet printer.
インクジェット記録は、記録時における静粛性と高速印
字性に優れている。従来よりインクジェット用のインク
組成物としては水等を基剤とした液体のインク組成物が
使われていた。Inkjet recording is excellent in quietness during recording and high-speed printing performance. Conventionally, liquid ink compositions based on water or the like have been used as ink compositions for inkjet printing.
しかしながら従来のインク組成物では被転写体への転写
特性が被転写体により異なるため、安定した印字品質が
得られず印字可能な被転写体が限定されるという問題点
があった。また乾燥には数十秒以上の時間を必要とする
ため、印字スピードが遅くなってしまうという課題を有
していた。However, with conventional ink compositions, the transfer characteristics to the transfer target differ depending on the transfer target, so there has been a problem that stable printing quality cannot be obtained and the transfer target on which printing can be performed is limited. Furthermore, since drying requires several tens of seconds or more, there is a problem in that the printing speed becomes slow.
そこで本発明の目的とするところは、被転写体への対応
率が高く、種々の被転写体に対し安定した印字品質が得
られ、かつ速乾性が得られるインクジェットインクを提
供するところにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an inkjet ink that has high compatibility with various transfer objects, provides stable printing quality for various transfer objects, and has quick drying properties.
本発明のインクジェット記録用インクは、少なくとも、
有機溶媒として一般式
%式%
で表される化合物を一種類又は複数種と、油性染料を含
有することを特徴とし、望ましくは少なくとも粘度が3
0mPa−秒以下(a t 20℃)及び引火点60℃
以上の溶媒を50〜99 w t%と、該溶媒に溶解す
る染料を1〜3 Q w t%金含有、さらにはインク
の表面張力が45 d y n e / c m(at
20℃)以下であることを特徴とする。The inkjet recording ink of the present invention includes at least the following:
It is characterized by containing one or more compounds represented by the general formula % as an organic solvent and an oil dye, and preferably has a viscosity of at least 3.
0 mPa-sec or less (at 20°C) and flash point 60°C
The above solvent is 50 to 99 wt%, the dye dissolved in the solvent is 1 to 3 Q wt% gold, and the surface tension of the ink is 45 dyne/cm (at
20°C) or lower.
本発明の上記特性を有すインクジェット記録用インクを
用いることにより印字直後にインクが被転写体内部に浸
透し定着されるため、インクが浸透できる空隙を有す被
転写体であれば、いずれも良好な印字品質が得られる。By using the inkjet recording ink of the present invention having the above-mentioned characteristics, the ink penetrates into the object to be transferred immediately after printing and is fixed. Good print quality can be obtained.
また被転写体表面にインクが残留しないため、印字後数
秒で十分な耐剛性が得られ、高印字スピードが可能にな
る。In addition, since no ink remains on the surface of the transfer target, sufficient rigidity resistance can be obtained within a few seconds after printing, making high printing speed possible.
又本発明のインクジェット記録用インクに含有されるア
ルコール系溶媒は適度な極性を持つ為、染料その他の溶
解性がよく、又紙白への定着性も優れるという効果を有
する。又安全性、化学的安定性に優れる為、高温高湿下
、低温下での使用及び長期保存に対し信頼性が高い。Furthermore, since the alcoholic solvent contained in the inkjet recording ink of the present invention has appropriate polarity, it has the effect of good solubility of dyes and other substances, and excellent fixability to white paper. Furthermore, because it has excellent safety and chemical stability, it is highly reliable for use under high temperature, high humidity, and low temperature conditions, and for long-term storage.
以下実施例と比較例により本発明を具体的に説明する。 The present invention will be specifically explained below using Examples and Comparative Examples.
本発明のインクジェット記録用インクに用いることので
きる主たる溶媒としては、3メチル・3メトキンブタノ
ール(−数式■)、メチルグリコール(−数式■)、メ
チルジグリコール(−数式■)、メチルトリグリコール
(−数式■)、メチルプロピレングリコール(−数式■
)、メチルプロピレンジグリコール(−数式■)、プロ
ピルグリコール(−数式■)、プロピルジグリコール(
−数式■)、プロピルプロピレングリコール(−数式■
)、プロピルプロピレンジグリコール(−数式■)、イ
ソプロピルグリコール(−数式■)、イソプロピルジグ
リコール(−数式■)、ブチルグリコール(−数式■)
、プチルジグリコル(−数式■)、ブチルトリグリコー
ル(−数式■)、ブチルプロピレングリコール(−数式
■)、ブチルプロピレンジグリコール(−数式■)、イ
ソブチルグリコール(−数式■)、イソブチルジグリコ
ール(−数式■)、ヘキシルグリコール(−数式■)、
ヘキシルジグリコール(−数式■)、2エチルへキシル
グリコール(−数式■)、2エチルへキシルグリコール
(−数式■)、アリルグリコール(−数式■)、フェニ
ルグリコール(−数式■)、フェニルプロピレングリコ
ール(−数式■)等があるがこれに制限されるものでは
ない。The main solvents that can be used in the inkjet recording ink of the present invention include 3-methyl/3-methquine butanol (-formula ■), methyl glycol (-formula ■), methyl diglycol (-formula ■), and methyl triglycol. (-formula■), methylpropylene glycol (-formula■
), methylpropylene diglycol (-formula ■), propyl glycol (-formula ■), propyl diglycol (
- formula■), propylpropylene glycol (-formula■
), propylpropylene diglycol (-formula ■), isopropyl glycol (-formula ■), isopropyl diglycol (-formula ■), butyl glycol (-formula ■)
, butyl diglycol (-formula ■), butyl triglycol (-formula ■), butylpropylene glycol (-formula ■), butylpropylene diglycol (-formula ■), isobutyl glycol (-formula ■), isobutyl diglycol (-formula ■), ■), hexyl glycol (-formula ■),
Hexyl diglycol (-formula ■), 2-ethylhexyl glycol (-formula ■), 2-ethylhexyl glycol (-formula ■), allyl glycol (-formula ■), phenyl glycol (-formula ■), phenylpropylene glycol (-mathematical formula ■), but is not limited thereto.
又上記溶媒の他に本発明のインクに添加できる溶媒とし
ては、脂肪族炭化水素系溶媒、芳香族炭化水素系溶媒、
ハロゲン化炭化水素系溶媒、アルコール系溶媒、エーテ
ル系溶媒、アセタール系溶媒、ケトン系溶媒、エステル
系溶媒、多価アルコール系溶媒及びその誘導体、脂肪酸
系溶媒、フェノール系溶媒、窒素化合物系溶媒、シリコ
ーン油、水等があり、いずれも単独または2種類以上の
混合糸で用いることができる。また水のように単独では
表面張力の高い溶媒は、低表面張力溶媒と混合させる、
または界面活性剤との混合により低表面張力化すること
が望ましい。そうすればどの様な紙でも素早く浸透する
ことができる。In addition to the above solvents, examples of solvents that can be added to the ink of the present invention include aliphatic hydrocarbon solvents, aromatic hydrocarbon solvents,
Halogenated hydrocarbon solvents, alcohol solvents, ether solvents, acetal solvents, ketone solvents, ester solvents, polyhydric alcohol solvents and their derivatives, fatty acid solvents, phenolic solvents, nitrogen compound solvents, silicones There are oil, water, etc., and either of them can be used alone or in a mixture of two or more types. Also, solvents that have a high surface tension when used alone, such as water, should be mixed with a low surface tension solvent.
Alternatively, it is desirable to lower the surface tension by mixing with a surfactant. This allows it to penetrate quickly into any type of paper.
また単体で粘度の高いグリセリンの様な溶媒は低粘度溶
媒との混合により低粘度化することが望ましい。In addition, it is desirable to lower the viscosity of a solvent such as glycerin, which has a high viscosity when used alone, by mixing it with a low-viscosity solvent.
本発明のインクジェット記録用インクに添加して効果を
得ることができる材料としては、界面活性剤、分散剤、
可溶性樹脂、樹脂エマルジョン等がある。界面活性剤、
分散剤はインクの低表面張力化、及び染料の可溶化効果
等がある。Materials that can be added to the inkjet recording ink of the present invention to obtain effects include surfactants, dispersants,
There are soluble resins, resin emulsions, etc. surfactant,
The dispersant has effects such as lowering the surface tension of the ink and solubilizing the dye.
また可溶性樹脂、及び樹脂エマルジョン等は、印字物の
耐刷性向上、または浸透面積の調節等に効果がある。In addition, soluble resins, resin emulsions, and the like are effective in improving the printing durability of printed matter, adjusting the permeation area, and the like.
本発明のインクジェット記録用インクに用いることがで
きる油溶性染料としては、黒染料としてはC,1,No
が、Sap vent bl ack(以下5Bk)
−3,5Bk−7,5Bk−45,5Bk−50等があ
る。またカラー染料としてはC01,NOが、So、Q
ven t Ye(Ip ow(以下5Y)−82
,5Y−93,5ol)ventRed(以下5R)−
49,5R−18、SOΩvent BΩue(以下
5B)−5,5B70、Sol vent Vio、
9 et (以下5V)−21があるがこれらに限定さ
れるものではない。As oil-soluble dyes that can be used in the inkjet recording ink of the present invention, black dyes include C, 1, No.
However, Sap vent black ack (hereinafter referred to as 5Bk)
-3, 5Bk-7, 5Bk-45, 5Bk-50, etc. Also, as color dyes, C01, NO, So, Q
vent Ye (Ipow (hereinafter referred to as 5Y)-82
, 5Y-93, 5ol) ventRed (hereinafter referred to as 5R)-
49,5R-18, SOΩvent BΩue (hereinafter referred to as 5B)-5,5B70, Sol vent Vio,
9 et (hereinafter referred to as 5V)-21, but is not limited thereto.
第1表に、本発明のインクジェット記録用インクの実施
例1〜3のインク組成例を示す。Table 1 shows ink composition examples of Examples 1 to 3 of the inkjet recording ink of the present invention.
第2表には、本発明のインクジェット記録用インクの比
較例として、比較例1には本発明のグリコールエーテル
系溶媒を含有せず、粘度が30mPa・秒(at20℃
)を越える有機溶媒を50wt%を越えて含有した組成
例を、比較例2には従来の水ベースインクの組成例をそ
れぞれ示す。Table 2 shows, as a comparative example of the inkjet recording ink of the present invention, that Comparative Example 1 does not contain the glycol ether solvent of the present invention and has a viscosity of 30 mPa・sec (at 20°C).
), and Comparative Example 2 shows a composition example of a conventional water-based ink containing an organic solvent exceeding 50 wt%.
第1表
油性染料Arc、1.NO5Bk−3
油性染料B:C,1,No 5Bk−7油性染料c:
c、1.NO5R−49
& 5B−5
有機溶媒D=3メチル3メトキシブタノール粘度ニア、
3mPa・秒(at20℃)(−数式■)
有機溶媒Eニブチルジグリコール
粘度:6.5mPa・秒(at20℃)(−数式■)
有機溶媒F
:メチルプロピレンジグリコール
粘度:
2mPa・秒(at20℃)
(−数式■)
第2表
有機溶媒G:アミン系溶媒
(トリエタノールアミン)
粘度:
350mPa−秒(a
t20℃)
有機溶媒H:アミン系溶媒(ホルムアミド)粘度:3.
5mPa−秒(a t 20℃)上記インクジェット記
録用インクの作成は、以下の手順で行った。最初に上表
中の組成物を超音波分散器にて、撹拌分散して、色材の
均一溶解まを確認する。次に必要に応して界面活性剤、
或は樹脂を添加してさらに撹拌混合してインクとした。First surface oil dye Arc, 1. NO5Bk-3 Oil dye B: C, 1, No 5Bk-7 Oil dye c:
c.1. NO5R-49 & 5B-5 Organic solvent D = 3 methyl 3 methoxybutanol viscosity near,
3 mPa・sec (at 20°C) (-formula ■) Organic solvent E Nibutyldiglycol viscosity: 6.5 mPa・sec (at 20°C) (−formula ■) Organic solvent F: Methylpropylene diglycol viscosity: 2 mPa・sec (at20 ℃) (-Formula ■) Table 2 Organic solvent G: Amine solvent (triethanolamine) Viscosity: 350 mPa-sec (at 20℃) Organic solvent H: Amine solvent (formamide) Viscosity: 3.
5 mPa-sec (at 20° C.) The above inkjet recording ink was prepared according to the following procedure. First, the composition shown in the above table is stirred and dispersed using an ultrasonic disperser, and it is confirmed that the coloring material is uniformly dissolved. Next, surfactant, if necessary.
Alternatively, a resin was added and further stirred and mixed to prepare an ink.
本発明のインクジェット記録用インクの製造方法は、上
記のような方法に制限されるものではなく、ロールミル
分散、エマルジョン法、マイクロカプセル法等でも製造
できる。The method for producing the inkjet recording ink of the present invention is not limited to the above-mentioned methods, but can also be produced by roll mill dispersion, emulsion method, microcapsule method, etc.
第1図に本発明のインクジェット記録用インクの吐出原
理の概念を模式図で示す。FIG. 1 schematically shows the concept of the ejection principle of the inkjet recording ink of the present invention.
第1図に示したごとく圧電変換器の変位により加圧され
たインク1はノズル形成基板2に形成されたノズル4よ
り吐出し、インクm3となり被転写体に衝突しドツトを
形成する。As shown in FIG. 1, the ink 1 pressurized by the displacement of the piezoelectric transducer is ejected from the nozzle 4 formed on the nozzle forming substrate 2, becomes ink m3, and collides with the transfer target to form a dot.
この原理では、インクの吐出スピードの向上か可能、ま
た使用できるインクの自由度が広い為、本発明のインク
を用いて瞬時にインクを被転写体内に浸透させることが
可能になる。According to this principle, it is possible to improve the ink ejection speed, and since there is a wide range of flexibility in the usable ink, it becomes possible to instantaneously permeate the ink into the object to be transferred using the ink of the present invention.
第2図に本発明のインクジェット記録用インクの浸透定
着原理の概念を模式図で示す。FIG. 2 schematically shows the concept of the principle of penetration and fixation of the inkjet recording ink of the present invention.
第2図に示したごとく被転写体7に衝突したインク滴5
は毛細管現象により被転写体内部に浸透し、ドツト6を
形成する。As shown in FIG. 2, the ink droplet 5 collided with the transfer target 7.
permeates into the transferred object by capillary action and forms dots 6.
この浸透現象をより短時間で行うには、インクの表面張
力がより小さく、またより低粘度であることが望ましく
、具体的には表面張力45dyne / c m (2
5℃)以下、また粘度20mPa−5ec(25℃)以
下が望ましい。In order to perform this penetration phenomenon in a shorter time, it is desirable that the ink has a lower surface tension and a lower viscosity. Specifically, the surface tension is 45 dyne/cm (2
5°C) or less, and the viscosity is preferably 20 mPa-5ec (25°C) or less.
次に以上のインクジェット記録用インクを使用し、第1
図に示したごときインクジェットプリンターにて印字テ
ストを行った。印字テストは300DP Iの解像度に
て1ドツトラインと、ベタ印字の2種類のパターンを5
種類の特性の異なる被転写紙に対して行った。Next, using the above inkjet recording ink, the first
A printing test was conducted using an inkjet printer as shown in the figure. The printing test was conducted at a resolution of 300DPI with 5 different patterns: 1 dot line and solid printing.
The tests were carried out on transfer paper of different types and characteristics.
印字の評価は、ドツトの形状安定性を1ドツトラインパ
ターンで、印字の速乾性をフルベタパターンでそれぞれ
評価した。The printing was evaluated by evaluating the shape stability of the dots using a one-dot line pattern and the quick-drying properties of the printing using a full solid pattern.
第3表に本実施例及び比較例のドツト形状安定性評価結
果を示す。Table 3 shows the dot shape stability evaluation results of the present example and comparative example.
なお、下表中実1、比1はそれぞれ実施例1、比較例1
の略である。In addition, solid 1 and ratio 1 in the table below refer to Example 1 and Comparative Example 1, respectively.
It is an abbreviation of
第3表
○ ドツト形状か常に安定している
Δ 紙の繊維により部分的ににじみが発生するX 紙の
繊維に沿ったインクのひげが発生する紙A:コピー用紙
紙D:インクジェット用紙紙B:再生紙 紙E、
アート紙
紙C1低平滑度紙
第4表に本実施例及び比較例の速乾性評価結果を示す。Table 3 ○ Dot shape is always stable Δ Bleeding occurs partially due to paper fibers X Ink whiskers occur along the paper fibers Paper A: Copy paper Paper D: Inkjet paper Paper B: Recycled paper Paper E,
Art Paper Paper C1 Low Smoothness Paper Table 4 shows the quick drying evaluation results of the present example and comparative example.
第4表
(秒)
本表中の秒数はインクが転写されてから、定着するまで
の時間である
第3表に示した通り、実施例1〜実施例3のインクは紙
種に関係なくにじみの無い形状安定性に優れた印字が得
られた。しかし比較例のインクはコピー用紙、再生紙で
ひげ状のにじみが観察され安定した印字は得られなかっ
た。Table 4 (Seconds) The number of seconds in this table is the time from when the ink is transferred until it is fixed.As shown in Table 3, the inks of Examples 1 to 3 were used regardless of the paper type. Printing with excellent shape stability without bleeding was obtained. However, with the ink of the comparative example, whisker-like bleeding was observed on copy paper and recycled paper, and stable printing could not be obtained.
また第4表に示した通り、実施例1〜3のインクは10
秒以下でインクが定着しているのに対し、比較例のイン
クではいずれも20秒以上要した。Further, as shown in Table 4, the inks of Examples 1 to 3 were 10
While the ink was fixed in less than a second, the ink of the comparative example required more than 20 seconds.
以上の結果より、被転写体への対応率が高く、種々の被
転写体に対し安定した印字品質と、速乾性を得るために
は、インク中に浸されている圧力発生部材を変形させ、
ノズル形成基板の内側に存在するインクの圧力を変化さ
せてノズルからインク滴を吐出させることにより印字を
行うインクシェツトプリンターにおいて、少なくとも粘
度が20mPa・秒以下(20℃)の有機溶媒と、該溶
媒に溶解する油溶性染料からなり、印字後肢転写体にイ
ンクが浸透して定着することが効果的である。From the above results, in order to achieve high compatibility with the transfer target, stable print quality for various transfer targets, and quick drying properties, it is necessary to deform the pressure generating member immersed in the ink.
In an inksheet printer that performs printing by ejecting ink droplets from a nozzle by changing the pressure of ink existing inside a nozzle forming substrate, an organic solvent having a viscosity of at least 20 mPa/sec or less (at 20°C) and It is made of an oil-soluble dye that dissolves in a solvent, and it is effective for the ink to penetrate and fix on the printed hindlimb transfer body.
本発明のインクジェット記録用インクの実施例は、黒色
インクまたは紫色インクについてのみに関して述べたが
、本発明はこれに制限されるものではなくイエロー、マ
ゼンタ、シアン等のインクを用いたカラープリンタへの
応用も可能である。Although the embodiments of the inkjet recording ink of the present invention have been described only with regard to black ink or purple ink, the present invention is not limited thereto, and can be applied to color printers using inks such as yellow, magenta, and cyan. Applications are also possible.
以上説明したように、本発明のインクジェット記録用イ
ンクを用いれば、被転写体への対応率が高く、種々の被
転写体に対し安定した印字品質と、速乾性を得ることが
可能になる。As explained above, if the inkjet recording ink of the present invention is used, it has a high degree of compatibility with transfer objects, and it is possible to obtain stable print quality and quick drying properties for various transfer objects.
第1図は、本発明のインクジェットプリンタのインク吐
出原理の概念を示す模式図。
第2図は、本発明のインクシェツト記録用インクの浸透
定着原理の概念を示す模式図。
・加圧されたインク
・ノズル形成基板
・吐出したインク
中ノズル
・被転写体に衝突したインク
・浸透したインク
・被転写体
以
上
田願人 セイコーエプソン株式会社
代理人 弁理士 鈴 木 喜三部(他1名)第1図
(Q)
第2rl!jFIG. 1 is a schematic diagram showing the concept of the ink ejection principle of the inkjet printer of the present invention. FIG. 2 is a schematic diagram showing the concept of the penetrating fixing principle of the ink sheet recording ink of the present invention. - Pressurized ink - Nozzle forming substrate - Discharged ink inside the nozzle - Ink that collided with the transferred object - Penetrated ink - Transferred object and more 1 other person) Figure 1 (Q) 2nd rl! j
Claims (3)
−(OCH_2CH_2)_3−OH[5]▲数式、化
学式、表等があります▼ 〔式中、Rは炭素原子数1〜16の直鎖状又は分岐状の
アルキル基又はアルキレン基を表す。〕 で表される化合物を一種類又は複数種と、油性染料を含
有することを特徴とするインクジェット記録用インク。(1) At least, there are general formulas [1] ▲ mathematical formulas, chemical formulas, tables, etc. as organic solvents ▼ [2] R-O-CH_2CH_2-OH [3] R-(OCH_2CH_2)_2-OH [4] R
-(OCH_2CH_2)_3-OH[5]▲ Numerical formulas, chemical formulas, tables, etc. are available▼ [In the formula, R represents a linear or branched alkyl group or alkylene group having 1 to 16 carbon atoms. ] An inkjet recording ink characterized by containing one or more compounds represented by the following and an oil dye.
℃)及び引火点60℃以上の溶媒を50〜99wt%と
、該溶媒に溶解する染料を1〜30wt%含有すること
を特徴とする請求項1記載のインクジェット記録用イン
ク。(2) The viscosity is at least 30 mPa・sec or less (at20
The inkjet recording ink according to claim 1, characterized in that it contains 50 to 99 wt% of a solvent having a flash point of 60C or higher and 1 to 30 wt% of a dye dissolved in the solvent.
0℃)以下であることを特徴とする請求項1記載のイン
クジェット記録用インク。(3) The surface tension of the ink is 45 dyne/cm (at2
2. The inkjet recording ink according to claim 1, wherein the ink has a temperature of 0°C or lower.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2276722A JPH04153279A (en) | 1990-10-16 | 1990-10-16 | Ink for ink jet recording |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2276722A JPH04153279A (en) | 1990-10-16 | 1990-10-16 | Ink for ink jet recording |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04153279A true JPH04153279A (en) | 1992-05-26 |
Family
ID=17573426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2276722A Pending JPH04153279A (en) | 1990-10-16 | 1990-10-16 | Ink for ink jet recording |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04153279A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998038377A1 (en) * | 1997-02-25 | 1998-09-03 | Poco.A.Poco Inc. | Printing method and printing device using water-insoluble ink |
WO2007100008A1 (en) * | 2006-02-28 | 2007-09-07 | Seiko Epson Corporation | Photocurable ink composition, inkjet recording method, and inkjet recording apparatus |
JP2009155662A (en) * | 2009-04-16 | 2009-07-16 | Toshiba Tec Corp | Inkjet recording aqueous ink |
US8034171B2 (en) | 2008-09-26 | 2011-10-11 | Brother Kogyo Kabushiki Kaisha | Water base ink for ink-jet recording, ink cartridge, and ink-jet recording apparatus |
US8123847B2 (en) | 2008-09-26 | 2012-02-28 | Brother Kogyo Kabushiki Kaisha | Water base ink for ink-jet recording, ink cartridge, and ink-jet recording apparatus |
-
1990
- 1990-10-16 JP JP2276722A patent/JPH04153279A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998038377A1 (en) * | 1997-02-25 | 1998-09-03 | Poco.A.Poco Inc. | Printing method and printing device using water-insoluble ink |
WO2007100008A1 (en) * | 2006-02-28 | 2007-09-07 | Seiko Epson Corporation | Photocurable ink composition, inkjet recording method, and inkjet recording apparatus |
US8034171B2 (en) | 2008-09-26 | 2011-10-11 | Brother Kogyo Kabushiki Kaisha | Water base ink for ink-jet recording, ink cartridge, and ink-jet recording apparatus |
US8123847B2 (en) | 2008-09-26 | 2012-02-28 | Brother Kogyo Kabushiki Kaisha | Water base ink for ink-jet recording, ink cartridge, and ink-jet recording apparatus |
JP2009155662A (en) * | 2009-04-16 | 2009-07-16 | Toshiba Tec Corp | Inkjet recording aqueous ink |
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