JPH10338830A - Method for recording with recording fluid and recording apparatus - Google Patents
Method for recording with recording fluid and recording apparatusInfo
- Publication number
- JPH10338830A JPH10338830A JP15119697A JP15119697A JPH10338830A JP H10338830 A JPH10338830 A JP H10338830A JP 15119697 A JP15119697 A JP 15119697A JP 15119697 A JP15119697 A JP 15119697A JP H10338830 A JPH10338830 A JP H10338830A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- liquid
- recording liquid
- water
- color
- 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
Landscapes
- Ink Jet (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、記録液を用いた記
録方法に関し、より詳しく言えば、水溶性染料を色材と
した第１の記録液と、着色剤により着色されておりそし
てイオン性基を有する樹脂微粒子を色材とした第２の記
録液とを用いて記録を行う方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording method using a recording liquid, and more particularly, to a first recording liquid using a water-soluble dye as a coloring material, a first recording liquid which is colored by a colorant, and The present invention relates to a method and an apparatus for performing recording using a second recording liquid using resin fine particles having a group as a coloring material.
【０００２】[0002]
【従来の技術】紙等の記録媒体に記録するのに用いられ
る記録液（この「記録液」は「インク」と同義と考える
ことができる）は、液中の色材の状態から溶解系と分散
系に大別でき、また用いられる溶媒あるいは分散媒の種
類から、水を含有する水性、水を含有しない溶剤性（油
性）に大きく分類できる。おのおのの記録液には、それ
ぞれ長所、短所があり、使用環境、主目的を考慮して、
最適と考える記録液が選択、使用される。2. Description of the Related Art A recording liquid used for recording on a recording medium such as paper (this "recording liquid" can be considered to be synonymous with "ink") depends on the state of the color material in the liquid and the dissolving system. Dispersions can be broadly classified into aqueous systems containing water and solvent types not containing water (oil type), depending on the type of solvent or dispersion medium used. Each recording liquid has its advantages and disadvantages, and in consideration of the usage environment and main purpose,
The recording liquid considered to be optimal is selected and used.
【０００３】文字や画像を記録媒体（紙やフィルム等）
に記録するオフィスや個人では、取扱性の良さ、安全
性、衛生上の観点から、一般に水性の記録液が使用され
ている。そしてこの水性記録液は、上記のとおり色材の
状態を基に溶解系水性記録液と分散系水性記録液に大別
される。[0003] Recording media (paper, film, etc.) for characters and images
In offices and individuals who record images in water, aqueous recording liquids are generally used from the viewpoints of good handling, safety and hygiene. The aqueous recording liquid is roughly classified into a soluble aqueous recording liquid and a dispersed aqueous recording liquid based on the state of the coloring material as described above.
【０００４】溶解系水性記録液は、一般に水溶性染料を
色材とするもので、比較的高濃度で鮮やかな、良好な色
の記録が可能であるという長所の反面、耐水性や耐光性
が弱いという短所がある。これに対し、分散系水性記録
液は、一般に顔料を色材とし、顔料の微細化に加え、表
面改質あるいは界面活性剤や水溶性樹脂等の分散剤の添
加により水に分散するようにしたもので、耐水性や耐光
性に優れるという長所の反面、比較的安定性が低く、ま
たくすんだ色の悪い記録になってしまうという短所があ
る。A soluble aqueous recording liquid generally uses a water-soluble dye as a coloring material, and has the advantage of being capable of recording a bright, good color at a relatively high density, but has the advantage of being resistant to water and light. It has the disadvantage of being weak. On the other hand, a dispersion-based aqueous recording liquid generally uses a pigment as a coloring material, and in addition to making the pigment finer, disperses in water by surface modification or addition of a dispersant such as a surfactant or a water-soluble resin. Although it has the advantage of being excellent in water resistance and light resistance, it has the disadvantages of relatively low stability and poorly colored recording.
【０００５】その一方で、記録液は、記録品位の向上を
目的として記録濃度の向上が望まれている。記録濃度の
向上には、記録液中の色材量を増加することが有効であ
るが、色材量の増加は記録液の安定性を低下する傾向に
あり、限界がある。特に、微細なノズルから記録液を吐
出して記録を行うインクジェット記録方式等では、色材
量の増加に伴い、ノズルでの色材の固体化が生じやすく
なり、ドット欠け等の記録不良を招き、記録の信頼性を
低下させる傾向にある。また、記録液を用いての記録で
は、安定で高記録品位であることが優先される。これら
のことから、高彩度の必要がない黒色の記録液を除き、
特にカラー記録に使用されるカラー記録液では、液の安
定性に優れ、高濃度で鮮やかな記録が行える溶解系水性
記録液を使用するのが主流になっている。On the other hand, the recording liquid is desired to have an improved recording density for the purpose of improving the recording quality. To improve the recording density, it is effective to increase the amount of the coloring material in the recording liquid. However, the increase in the amount of the coloring material tends to decrease the stability of the recording liquid, and there is a limit. In particular, in an ink jet recording method in which recording is performed by discharging a recording liquid from a fine nozzle, as the amount of the coloring material increases, solidification of the coloring material at the nozzle tends to occur, leading to poor recording such as missing dots. However, the recording reliability tends to decrease. In the recording using the recording liquid, priority is given to stable and high recording quality. From these, except for the black recording liquid that does not require high saturation,
In particular, in the case of a color recording liquid used for color recording, a dissolution-based aqueous recording liquid having excellent liquid stability and capable of performing high-density and vivid recording has been mainly used.
【０００６】このような溶解系水性記録液を用いる際に
は、耐光性、耐水性の短所を解決するため、記録媒体に
インク受容層を設け、このインク受容層に紫外線吸収
剤、カチオン水溶性樹脂等を添加した専用記録媒体を使
用することで、耐光性、耐水性の向上を図る方法が一般
的である。When using such a solution-based aqueous recording liquid, an ink receiving layer is provided on the recording medium in order to solve the disadvantages of light fastness and water fastness. In general, a method for improving light resistance and water resistance by using a special recording medium to which a resin or the like is added is generally used.
【０００７】これに代わる耐光性、耐水性向上の方法と
して、記録媒体の記録面をフィルムで覆う方法やフィル
ム層を形成する方法（例えば特開昭６２−２０２７８２
号公報、特開平８−２５２９８５号公報、特開平８−２
５８３７２号公報など）や、記録液中に樹脂を添加する
方法（例えば特開昭63−１０９０８３号公報など）が提
案されている。As an alternative method of improving light resistance and water resistance, a method of covering the recording surface of a recording medium with a film or a method of forming a film layer (for example, Japanese Patent Application Laid-Open No. 62-202782)
Gazette, JP-A-8-252985, JP-A-8-2
58372) and a method of adding a resin to a recording liquid (for example, JP-A-63-109083).
【０００８】専用記録媒体を使用する方法は、効果は大
きいものの、媒体が高価となる欠点を有することや、入
手の簡便性、コピー等の他の記録方式との記録媒体の共
通性などの課題を有しており、専用記録媒体よりもコピ
ー等に使用される記録面に紙繊維が露呈したいわゆる普
通紙の使用が要望されている。The method of using a dedicated recording medium, although effective, has the disadvantage that the medium is expensive, the simplicity of acquisition, and the commonality of the recording medium with other recording methods such as copying. There is a demand for the use of so-called plain paper in which paper fibers are exposed on a recording surface used for copying or the like rather than a dedicated recording medium.
【０００９】また、記録媒体の記録面をフィルムで覆っ
たり、フィルム層を形成する方法では、記録媒体が厚く
なり、取扱性が悪くなるのに加えて、記録媒体の特性で
ある柔軟性、質感等を大きく変化させてしまう不都合が
あるほか、手間がかかったり、専用の装置を必要とする
こともある。In the method of covering the recording surface of the recording medium with a film or forming a film layer, the recording medium becomes thicker and the handleability deteriorates, and in addition to the characteristics of the recording medium such as flexibility and texture. In addition to the inconvenience of greatly changing the parameters, it may take time and may require a dedicated device.
【００１０】記録液中に樹脂を添加する方法では、樹脂
は水に不溶性であっても、樹脂自体は無色であり、また
色材である染料を覆っていないため、記録媒体上の染料
は水に溶解してしまい、耐水性は向上しないし、同様の
理由で紫外線吸収剤を添加しても耐光性の向上は望めな
い。更には、特別な樹脂層形成手段を必要とする場合も
ある。In the method of adding a resin to a recording liquid, the resin itself is colorless even if the resin is insoluble in water, and the dye on the recording medium is not covered with water because the dye is not covered with the coloring material. And water resistance is not improved, and for the same reason, improvement in light resistance cannot be expected even if an ultraviolet absorber is added. Further, a special resin layer forming means may be required in some cases.
【００１１】また、これらの方法以外に、耐光、耐水性
に優れ、特にカラー記録で鮮やかな記録が可能な方法と
して、着色剤（染料又は顔料）で着色し且つイオン性基
を含有させることで水分散可能としたポリエステル樹脂
を含む記録液を用いる方法が提案されている（例えば特
開平４−２９６３２１号公報、特開平７−１９６９６５
号公報など）。この記録液の特徴は、色材として、水に
不溶性のポリエステル樹脂を着色剤で着色して用い、特
にこの着色剤を染料とすることでより鮮やかで良好な色
の記録ができ、且つ良好な耐水性が得られることであ
る。更に、ポリエステル樹脂は紫外線吸収性を有するた
め、また必要に応じて紫外線吸収剤を樹脂に添加するこ
とにより、良好な耐光性を得ることができる。しかし、
記録濃度の向上には、樹脂を着色する着色剤濃度を増加
したり、記録液中のポリエステル樹脂濃度を増加する必
要があるが、樹脂に対する着色剤の溶解能には限界があ
り、また記録液中の樹脂濃度の増加は記録液の粘度の上
昇等のように記録液の物性に大きく影響するほか、記録
液の安定性を低下させる傾向もある。In addition to these methods, as a method which is excellent in light fastness and water fastness, and particularly enables vivid recording by color recording, coloring by a coloring agent (dye or pigment) and containing an ionic group. A method using a recording liquid containing a polyester resin which can be dispersed in water has been proposed (for example, JP-A-4-296321, JP-A-7-196965).
Issue publication). The feature of this recording liquid is that, as a coloring material, a water-insoluble polyester resin is colored with a coloring agent, and in particular, by using this coloring agent as a dye, more vivid and good color recording can be performed, and good Water resistance is obtained. Further, since the polyester resin has an ultraviolet absorbing property, good light resistance can be obtained by adding an ultraviolet absorbing agent to the resin as needed. But,
In order to improve the recording density, it is necessary to increase the concentration of the colorant for coloring the resin, or to increase the concentration of the polyester resin in the recording liquid. An increase in the resin concentration therein greatly affects the physical properties of the recording liquid, such as an increase in the viscosity of the recording liquid, and also tends to decrease the stability of the recording liquid.
【００１２】このように、従来技術では、色材として水
溶性染料を用い、あるいは特に染料で着色するとともに
イオン性基を含有させて水分散可能としたポリエステル
樹脂を用いることで、鮮やかで良好な色を実現できる
が、耐水性、耐光性の改善には効果がなかったり、ある
いは効果があっても、記録液の安定性、記録の信頼性を
確保したまま記録濃度の増加等の記録品位を向上させる
ことは実現できていない。As described above, in the prior art, a water-soluble dye is used as a coloring material, or a polyester resin which is colored with a dye and contains an ionic group so as to be dispersible in water is used. Color can be realized, but it has no effect on improving water resistance and light resistance, or even if there is an effect, increase the recording quality such as increasing the recording density while maintaining the stability of the recording liquid and the reliability of recording. Improvement has not been realized.
【００１３】その一方で、特に近年、パソコンやアプリ
ケーションソフトウェアの普及、性能向上により、写真
やビデオデータ等のいわゆる自然画像の記録に適した、
より高品位の階調カラー記録の実現の要求が強まってい
る。これに対して、インクジェット記録方式に代表され
る水性記録液を用いた記録方法では、濃淡２種類のほぼ
同じ色相を有するインクを使用することで、高品位の階
調記録を実現しているが、上述の耐水性、耐光性の課題
は残存したままであり、新たな対策は提案されていな
い。On the other hand, in recent years, the spread of personal computers and application software and the improvement of performance have made it suitable for recording so-called natural images such as photographs and video data.
There is an increasing demand for higher quality gradation color printing. On the other hand, in a recording method using an aqueous recording liquid represented by an ink jet recording method, high-quality gradation recording is realized by using two types of inks having almost the same hue of shading. However, the above-described problems of water resistance and light resistance remain, and no new countermeasures have been proposed.
【００１４】[0014]
【発明が解決しようとする課題】そこで、本発明は、記
録液の安定性も記録の信頼性も低下させることなく、記
録液を用いて記録媒体上に記録を行ったときの記録濃度
が高くて、しかも耐水性、耐光性に優れた高品位の記録
を実現できる記録液での記録方法の提供を目的とする。
この方法を実施するための装置、及びそれで使用される
記録液カートリッジを提供することも本発明の目的であ
る。SUMMARY OF THE INVENTION Accordingly, the present invention provides a high recording density when recording is performed on a recording medium using a recording liquid without deteriorating the stability of the recording liquid and the reliability of recording. Another object of the present invention is to provide a recording method using a recording liquid capable of realizing high-quality recording excellent in water resistance and light resistance.
It is also an object of the present invention to provide an apparatus for performing this method, and a recording liquid cartridge used therewith.
【００１５】[0015]
【課題を解決するための手段】本発明の記録液による記
録方法は、少なくとも一つの色の記録液について第一及
び第二の記録液を用いて記録媒体に記録を行う記録方法
であって、第一の記録液として少なくとも水溶性染料と
水を含むものを使用し、第二の記録液として少なくと
も、着色剤により着色されていて且つイオン性基を含有
している樹脂微粒子と、この微粒子を分散させる水を含
むものを使用し、そして第一の記録液で記録媒体への記
録を行った後に、第二の記録液で、記録媒体上の少なく
とも第一の記録液により記録を行った部分に重ねて記録
を行うことを特徴とする。A recording method using a recording liquid according to the present invention is a recording method for recording a recording liquid of at least one color on a recording medium using first and second recording liquids, As the first recording liquid, one containing at least a water-soluble dye and water is used, and as the second recording liquid, at least resin fine particles colored by a coloring agent and containing an ionic group, Using the one containing the water to be dispersed, and after recording on the recording medium with the first recording liquid, with the second recording liquid, at least the portion where the recording was performed with the first recording liquid on the recording medium It is characterized in that the recording is performed in a manner superimposed on the recording.
【００１６】本発明の記録装置は、少なくとも一つの色
の記録液について第一及び第二の記録液を用いて記録媒
体に記録を行う記録装置であって、第一の記録液として
少なくとも水溶性染料と水を含むものを使用し、第二の
記録液として、少なくとも、着色剤により着色されてい
て且つイオン性基を含有している樹脂微粒子と、この微
粒子を分散させる水を含むものを使用し、そして第一の
記録液で記録媒体への記録を行った後に、第二の記録液
で記録媒体上の少なくとも第一の記録液により記録を行
った部分に重ねて記録を行う手段を含むことを特徴とす
る。The recording apparatus of the present invention is a recording apparatus for recording at least one color recording liquid on a recording medium using the first and second recording liquids, wherein the first recording liquid is at least water-soluble. Use a liquid containing a dye and water, and use, as the second recording liquid, at least a resin fine particle colored by a colorant and containing an ionic group, and a liquid containing water for dispersing the fine particles. And means for performing recording on the recording medium with the first recording liquid, and then performing recording with the second recording liquid at least on the portion of the recording medium on which recording was performed with the first recording liquid. It is characterized by the following.
【００１７】また、本発明の記録液カートリッジは、少
なくとも一つの色の記録液について第一及び第二の記録
液を用いて記録媒体上に記録を行うためのカートリッジ
であって、少なくとも水溶性染料及び水を含む第一の記
録液と、少なくとも着色剤により着色されていて且つイ
オン性基を含有している樹脂微粒子とこの微粒子を分散
させる水を含む第二の記録液をそれぞれ収容した容器を
組み合わせて含むことを特徴とする。Further, the recording liquid cartridge of the present invention is a cartridge for recording on at least one color recording liquid on a recording medium using the first and second recording liquids, wherein at least a water-soluble dye is used. And a first recording liquid containing water, a resin fine particle colored by at least a colorant and containing a ionic group, and a container containing a second recording liquid containing water for dispersing the fine particles, respectively. It is characterized by being included in combination.
【００１８】[0018]
【発明の実施の形態】本発明では、少なくとも一つの色
について第一の記録液と第二の記録液を使用する。第一
の記録液は少なくとも色材としての水溶性染料と水を含
み、そして第二の記録液は少なくとも、着色剤により着
色されていて且つイオン性基を含有している、色材とし
ての樹脂微粒子とこの微粒子を分散させる水を含む。言
うまでもなく、第一の記録液も第二の記録液も、色材と
水のほかに、筆記具やインクジェット用インクなどの通
常の記録液に添加されることのある任意の添加成分を含
むことができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a first recording liquid and a second recording liquid are used for at least one color. The first recording liquid contains at least a water-soluble dye and water as coloring materials, and the second recording liquid is at least a resin as a coloring material that is colored by a coloring agent and contains an ionic group. It contains fine particles and water for dispersing the fine particles. Needless to say, both the first recording liquid and the second recording liquid may contain, in addition to the coloring material and water, any additional components that may be added to ordinary recording liquids such as writing implements and inks for inkjet. it can.
【００１９】第一の記録液で用いられる色材の水溶性染
料は、水に溶解する既知の染料のうちから使用環境や使
用目的に応じて任意に選ぶことができる。The water-soluble dye of the coloring material used in the first recording liquid can be arbitrarily selected from known dyes soluble in water according to the use environment and purpose.
【００２０】一方、第二の記録液では、着色剤により着
色されていて且つイオン性基を含有している樹脂微粒子
を色材として使用する。例えば、イオン性基を有する着
色したポリエステル樹脂粒子の水分散体は、平均粒径
０．３μｍ程度以下で種々の粒径の水分散体が製造可能
であり、且つシャープな粒度分布を有し、本発明の第二
の記録液の樹脂微粒子として使用するのに好適である。
このような樹脂微粒子の着色剤には、常温で水に溶解し
ない染料や顔料を使用できるので、色材の選択範囲が拡
がり、より良好な特性の色材を使用できる。また、イオ
ン性基には、アニオン基あるいはカチオン基のどちらも
使用することができる。On the other hand, in the second recording liquid, resin fine particles colored with a coloring agent and containing an ionic group are used as a coloring material. For example, an aqueous dispersion of colored polyester resin particles having an ionic group can produce aqueous dispersions of various particle sizes with an average particle size of about 0.3 μm or less, and has a sharp particle size distribution, It is suitable for use as resin fine particles of the second recording liquid of the present invention.
Dyes and pigments that do not dissolve in water at room temperature can be used as the colorant for such resin fine particles, so that the range of color materials to be selected is expanded, and color materials having better characteristics can be used. Further, as the ionic group, either an anionic group or a cationic group can be used.
【００２１】しかし、一般に、顔料は耐水・耐光性に優
れているが、カラーの場合鮮やかさが低く、色再現範囲
が狭いことが、また、染料はカラーの場合鮮やかさが高
く、色再現範囲が広いが、耐水・耐光性は黒色も含め顔
料に劣っていることが知られている。従って、本発明の
効果をより高めるには、樹脂微粒子は染料で着色し、カ
ラーの記録液に適用することがより好ましい。すなわ
ち、ポリエステル樹脂等の着色には染料を使用すること
で、より高鮮明で、色再現性の広い記録が可能となる。
また、水に溶解しない染料で水に溶解しない樹脂を着色
することにより、この着色樹脂を色材として使用した第
二の記録液で記録を行った部分は当然耐水性が高くな
り、またポリエステル等の樹脂は染料の褪色の要因であ
る紫外線を吸収するため、第二の記録液の樹脂が記録媒
体上の記録部分（すなわち記録媒体上に記録液による記
録がなされる部分）の表面を覆うようにすることで、耐
光性の大幅な向上が可能となる。必要に応じて紫外線吸
収剤等を添加することも、耐光性の向上に寄与する。However, in general, pigments are excellent in water resistance and light fastness, but in the case of color, the vividness is low and the color reproduction range is narrow, and in the case of color dye, the vividness is high and the color reproduction range is low. However, it is known that pigments, including black, are inferior to pigments in water resistance and light resistance. Therefore, in order to further enhance the effects of the present invention, it is more preferable that the resin fine particles be colored with a dye and applied to a color recording liquid. That is, by using a dye for coloring the polyester resin or the like, it becomes possible to perform recording with higher definition and wider color reproducibility.
In addition, by coloring a resin that does not dissolve in water with a dye that does not dissolve in water, the portion recorded with the second recording liquid using this colored resin as a coloring material naturally has high water resistance, and polyester and the like. Resin absorbs ultraviolet light which is a cause of dye fading, so that the resin of the second recording liquid covers the surface of the recording portion on the recording medium (that is, the portion where recording is performed on the recording medium by the recording liquid). By doing so, the light resistance can be significantly improved. Addition of an ultraviolet absorber or the like as needed also contributes to an improvement in light resistance.
【００２２】このような樹脂微粒子は、例えば、イオン
性基を導入したポリエステル樹脂を合成し、これを溶媒
に溶解させた溶液に適当な染料を添加し溶解させた後
に、水を加えて樹脂をミクロ分散体とすることで容易に
製造することができる。イオン性基としては、スルホン
酸アルカリ金属塩基、スルホン酸アンモニウム塩基、カ
ルボン酸アルカリ金属塩基、カルボン酸アンモニウム塩
基や、硫酸基、リン酸基、ホスホン酸基、ホスフィン酸
基や、それらの酸のアンモニウム塩、金属塩等のアニオ
ン性基や、第１級ないし第３級アミン基等のカチオン性
基を導入することができる。これらの樹脂微粒子とその
製造方法は、特開平４−２９６３２１号公報や特開平７
−１９６９６５号公報から周知のものである。Such a resin fine particle is prepared, for example, by synthesizing a polyester resin having an ionic group introduced therein, adding a suitable dye to a solution obtained by dissolving the polyester resin in a solvent, and then dissolving the resin by adding water. It can be easily manufactured by forming a microdispersion. Examples of the ionic group include alkali metal sulfonic acid bases, ammonium sulfonate bases, alkali metal carboxylate bases, ammonium carboxylate bases, sulfate groups, phosphate groups, phosphonic acid groups, phosphinic acid groups, and ammonium salts of these acids. Anionic groups such as salts and metal salts and cationic groups such as primary to tertiary amine groups can be introduced. These resin fine particles and a method for producing the same are described in JP-A-4-296321 and JP-A-7-1995.
This is well-known from JP-196965.
【００２３】本発明では、カラー記録を可能にするよ
う、複数の色、通常は三つの色の記録液を使用すること
ができ、この場合、少なくとも一つの色の記録液につい
て第一及び第二の２種類の記録液を使用し、ほかの色に
ついては１種類のみの記録液を使用することができる。
このように１種類のみの記録液を用いる色については、
記録液として水溶性染料及び水を含むもの（第一の記録
液に相当するもの）を用いても、着色剤特に染料により
着色されていて且つイオン性基を含有している樹脂微粒
子とこの微粒子を分散させる水を含むもの（第二の記録
液に相当するもの）を用いてもよいが、本発明の効果を
より高めるため、第二の記録液に相当するものを用いる
方が好ましい。また、同じ色について用いる第一及び第
二の記録液は、記録媒体に記録されたときに近似したほ
ぼ同じ色相を示すように、色相を多少異にする異なる染
料と着色剤をそれぞれ使用するのが好ましい。In the present invention, a plurality of recording liquids, usually three colors, can be used to enable color recording. In this case, the first and second recording liquids of at least one color are used. , And only one type of recording liquid can be used for other colors.
Thus, for colors using only one type of recording liquid,
Even when a recording liquid containing a water-soluble dye and water (corresponding to the first recording liquid) is used, resin fine particles colored with a coloring agent, particularly a dye, and containing an ionic group, and these fine particles May be used (equivalent to the second recording liquid) containing water in which is dispersed, but in order to further enhance the effect of the present invention, it is more preferable to use the one corresponding to the second recording liquid. Further, the first and second recording liquids used for the same color use different dyes and colorants each having a slightly different hue so as to show almost the same hue approximated when recorded on a recording medium. Is preferred.
【００２４】本発明の方法で記録を行う場合には、まず
第一の記録液を用いて記録媒体に記録を行った後に、第
二の記録液を使って記録を行うようにし、その際に記録
媒体上の少なくとも第一の記録液で既に記録が行われた
部分に第二の記録液を重ねるようにして記録を行う。こ
のようにすることで、第一の記録液の記録部分表面を第
二の記録液の樹脂微粒子で少なくとも部分的に覆うこと
により、第二の記録液が乾く段階で樹脂の膜が形成され
てその下の第一の記録液の水溶性染料を被覆するため、
水性染料が水に溶けだすのが防止されるようになり、す
なわち耐水性が向上する。When recording is performed by the method of the present invention, first, recording is performed on a recording medium using the first recording liquid, and then recording is performed using the second recording liquid. The recording is performed such that the second recording liquid is superimposed on at least a portion of the recording medium on which recording has already been performed with the first recording liquid. In this way, the surface of the recording portion of the first recording liquid is at least partially covered with the resin fine particles of the second recording liquid, so that the resin film is formed at the stage where the second recording liquid dries. To coat the water-soluble dye of the first recording liquid under it,
The aqueous dye is prevented from being dissolved in water, that is, the water resistance is improved.
【００２５】また、第二の記録液の樹脂として紫外線を
吸収する性質のある例えばポリエステル樹脂の如きもの
を使用することで、耐光性の向上も図られる。その上、
第一の記録液での記録部分の上に第二の記録液を重ねる
ようにすることから、高い記録濃度を要求される部分の
記録についても第一の記録液及び第二の記録液の色材濃
度を増加することなくその部分の記録濃度を向上でき、
且つ記録液の安定性、記録の信頼性を確保できる。Also, by using a resin such as a polyester resin having a property of absorbing ultraviolet rays as the resin of the second recording liquid, the light resistance can be improved. Moreover,
Since the second recording liquid is superimposed on the recording part of the first recording liquid, the colors of the first recording liquid and the second recording liquid are also used for the recording of the part requiring high recording density. Recording density can be improved without increasing the material density,
In addition, the stability of the recording liquid and the reliability of the recording can be ensured.
【００２６】第一及び第二の記録液の両方を用いる色の
記録については、第一の記録液での記録部分の上に第二
の記録部分を重ねる必要があり、両者を同時に記録する
ことはできない。そのため、第一の記録液で記録後第二
の記録液での記録を行う前に、第一の記録液が定着して
いることが望ましい。そこで、本発明では、少なくとも
第一の記録液に浸透剤等を添加して、記録媒体への記録
液の浸透を促進することで定着を速め、それにより、第
一と第二の両方の記録液で同時の記録が行えないことに
起因する記録速度の低下を防止できる。For color recording using both the first and second recording liquids, it is necessary to overlap the second recording part on the recording part with the first recording liquid, and to record both at the same time. Can not. Therefore, it is desirable that the first recording liquid is fixed after the recording with the first recording liquid and before the recording with the second recording liquid. Therefore, in the present invention, at least the first recording liquid is added with a penetrant or the like to promote the penetration of the recording liquid into the recording medium, thereby speeding up the fixing. It is possible to prevent a decrease in recording speed due to the inability to perform simultaneous recording with liquid.
【００２７】本発明では、染料系水性記録液の特徴を生
かし、同じ色について、第一の記録液を濃色の記録液と
して使用し、そして第二の記録液を淡色の記録液として
使用して、第二の記録液を第一の記録液の記録部分に重
ねて記録することで、高濃度記録部分の濃度をより向上
させることができ、更に低濃度記録部分には第二の記録
液を記録し、中間濃度記録部分には第一の記録液の上に
第二の記録液を重ねて記録し、且つこの部分のうちの第
一の記録液で記録の行われていないところに第二の記録
液で記録することを組み合わせたパターンを記録し、こ
うして記録液の乾燥後に全ての記録部分を樹脂微粒子で
少なくとも部分的に覆うことにより、耐光性、耐水性に
優れ、高品位で、記録液の安定性と記録の信頼性に優れ
た階調記録を行うことができる。In the present invention, the first recording liquid is used as a dark recording liquid and the second recording liquid is used as a light recording liquid for the same color, taking advantage of the characteristics of the dye-based aqueous recording liquid. Therefore, by recording the second recording liquid over the recording part of the first recording liquid, the density of the high-density recording part can be further improved. The second recording liquid is superimposed on the first recording liquid in the intermediate density recording portion, and the first recording liquid is recorded in the portion where the recording is not performed with the first recording liquid. By recording a pattern combining the recording with the second recording liquid, and thus at least partially covering all recording portions with resin fine particles after drying of the recording liquid, light resistance, excellent water resistance, high quality, Performs gradation recording with excellent recording liquid stability and recording reliability Door can be.
【００２８】更に、少なくともイエロー、マゼンタ、シ
アンの三色の記録液を用いて行うカラー記録では、他の
二色の高濃度記録液に比べて一般に記録濃度を低く設計
するイエローに第二の記録液を用い、高記録濃度と低記
録濃度が必要なマゼンタ、シアンには第一の記録液と第
二の記録液をそれぞれ用いることにより、耐光性、耐水
性に優れ、高品位で、記録液の安定性と記録の信頼性に
優れた自然画の記録に適したフルカラーの階調記録を行
うことができる。この際、浸透剤等の添加により、各記
録液の定着時間を、記録媒体上の色境界部分で記録液が
流れ出すことに起因する混色の現象、いわゆるブリード
が生じにくい程度の短時間とすることで、より高記録品
位のカラー記録が可能となる。Further, in color recording performed using at least three color recording liquids of yellow, magenta and cyan, the second recording is generally performed on yellow which is designed to have a lower recording density than the other two-color high-density recording liquids. Liquid and high recording density by using the first recording liquid and the second recording liquid for magenta and cyan, which require high and low recording densities, respectively. It is possible to perform full-color gradation recording suitable for recording a natural image having excellent stability and recording reliability. At this time, by adding a penetrant or the like, the fixing time of each recording liquid is set to a short time such that a phenomenon of color mixing caused by the flow of the recording liquid at a color boundary portion on the recording medium, that is, so-called bleeding is hardly generated. Thus, color recording with higher recording quality can be performed.
【００２９】[0029]
【実施例】次に、実施例により本発明を更に説明するこ
とにする。Next, the present invention will be further described with reference to examples.
【００３０】〔実施例１〕この例では、インクジェット
記録方式を用い、第二の記録液の樹脂にポリエステルを
使用する場合について説明する。[Embodiment 1] In this embodiment, a case will be described in which an inkjet recording system is used and polyester is used as the resin of the second recording liquid.
【００３１】染料で着色したポリエステル樹脂微粒子の
水分散体の製造方法は、特開平４−２９６３２１号公報
に詳しく記載されており、特に特開平７−１９６９６５
号公報にはインクジェット用の記録液（インク）の製造
方法の例が記載されている。これらに記載された手順に
従い、まず、下記の物質を用いて１８０〜２３０℃で１
２０分間加熱することによりエステル交換反応を行い、
共重合ポリエステル樹脂を製造した。A method for producing an aqueous dispersion of polyester resin fine particles colored with a dye is described in detail in JP-A-4-296321, and in particular, JP-A-7-196965.
Japanese Patent Application Laid-Open Publication No. H11-146131 discloses an example of a method for producing a recording liquid (ink) for inkjet. According to the procedures described therein, first, at 180 to 230 ° C.,
Perform transesterification by heating for 20 minutes,
A copolyester resin was produced.
【００３２】 ジメチルテレフタレート ２９０重量部 エチレングリコール １０９重量部 ネオペンチルグリコール １８０重量部 ２−ジメチルアミノメチル−２−メチル−１，３−プロバンジオール １５重量部 テトラブトキシチタネート ０．２重量部Dimethyl terephthalate 290 parts by weight Ethylene glycol 109 parts by weight Neopentyl glycol 180 parts by weight 2-Dimethylaminomethyl-2-methyl-1,3-propanediol 15 parts by weight Tetrabutoxy titanate 0.2 parts by weight
【００３３】このポリエステル樹脂１００重量部と、着
色剤として下記の染料100 parts by weight of this polyester resin and the following dye as a colorant
【００３４】 Ｃ．Ｉ．Ｓｏｌｖｅｎｔ Ｂｌｕｅ ６４ ６重量部C. I. Solvent Blue 64 6 parts by weight
【００３５】と、下記の溶剤And the following solvent
【００３６】 メチルエチルケトン １７５重量部 テトラヒドロフラン １７５重量部Methyl ethyl ketone 175 parts by weight Tetrahydrofuran 175 parts by weight
【００３７】を混合して、樹脂、染料を溶解したのち、
水６００重量部を添加して、樹脂の微粒子化を行い、こ
れをポアサイズ０．８μｍのメンブレンフィルタで濾
過、蒸留して、固形分濃度約３０重量％の平均粒径が約
０．１８μｍの水分散体を得た。After mixing and dissolving the resin and the dye,
600 parts by weight of water are added to make the resin into fine particles, which are filtered through a membrane filter having a pore size of 0.8 μm and distilled to obtain water having a solid concentration of about 30% by weight and an average particle diameter of about 0.18 μm. A dispersion was obtained.
【００３８】このようにして得たシアン色の水分散体５
０重量％に、湿潤剤としてグリセリン１２重量％、浸透
剤としてノニオン系界面活性剤（エアプロダクツ社製サ
ーフィノール）０．８重量％、及び水３７．２重量％を
混合して、粘度約４ｃＰ、表面張力約３２ｄｙｎ／ｃｍ
の第二の記録液を調製した。なお、この記録液に含まれ
る固形分濃度は約１５重量％となった。Cyan aqueous dispersion 5 thus obtained
0% by weight, 12% by weight of glycerin as a wetting agent, 0.8% by weight of a nonionic surfactant (Surfinol manufactured by Air Products) as a penetrating agent, and 37.2% by weight of water were mixed to give a viscosity of about 4 cP. , Surface tension about 32 dyn / cm
Was prepared. The concentration of the solid content contained in this recording liquid was about 15% by weight.
【００３９】一方、水溶性染料であるＣ．Ｉ．Ａｃｉｄ
Ｂｌｕｅ ９を３重量％、湿潤剤ジエチレングリコー
ル１５重量％、浸透調整剤エチルアルコール２重量％、
浸透剤ノニオン系界面活性剤（エアプロダクツ社製サー
フィノール）１．０重量％、水７９重量％を混合、溶解
し、ポアサイズ０．８μｍのメンブレンフィルタで濾過
して、粘度約２．５ｃＰ、表面張力約３０ｄｙｎ／ｃｍ
の第１の記録液を調製した。On the other hand, C.I. I. Acid
3% by weight of Blue 9, 15% by weight of a wetting agent diethylene glycol, 2% by weight of a penetration modifier ethyl alcohol,
1.0% by weight of a nonionic surfactant (Surfynol manufactured by Air Products) and 79% by weight of water are mixed and dissolved, and the mixture is filtered through a membrane filter having a pore size of 0.8 μm to obtain a viscosity of about 2.5 cP. Tension about 30 dyn / cm
Was prepared.
【００４０】これらの記録液を、記録媒体にゼロックス
社の普通紙ＸＥＲＯＸ４０２４ＤＰを用い、解像度３６
０ｄｐｉでベタ記録（記録媒体の全面に単一濃度で行う
記録）した。このとき、各記録液の定着時間を、記録媒
体上に液状の記録液が残留しない時間として、記録面を
紙で軽く押さえた後に記録液による汚染がその紙で観察
されなくなるまでの時間を測定した結果、各記録液の定
着時間は１秒未満程度であった。Using these recording liquids, Xerox 4024DP plain paper manufactured by Xerox Co., Ltd. was used as the recording medium, and a resolution of 36 was used.
Solid recording was performed at 0 dpi (recording performed at a single density on the entire surface of the recording medium). At this time, the fixing time of each recording liquid is defined as the time during which no liquid recording liquid remains on the recording medium, and the time until the contamination by the recording liquid is no longer observed on the paper after lightly pressing the recording surface with paper is measured. As a result, the fixing time of each recording liquid was less than about 1 second.
【００４１】次に、上記と同じ条件で、第一の記録液を
記録した約１秒後に、この記録部分に重ねて第二の記録
液を記録した。また、やはり上記と同じ条件で、最初に
第二の記録液を記録した約１秒後に、この記録部分に重
ねて第一の記録液を記録した。Next, under the same conditions as above, about one second after recording the first recording liquid, a second recording liquid was recorded so as to overlap this recording portion. Also, under the same conditions as above, about 1 second after the first recording of the second recording liquid, the first recording liquid was recorded over this recording portion.
【００４２】このようにして得たベタ記録サンプルを１
日放置した後、記録濃度（ステータスＡ濃度）と、水道
水に約１分浸漬した前後での記録部分の色差（耐水性Δ
Ｅ）、紫外線ランプで紫外線を１時間照射した前後での
記録部分の色差（耐光製ΔＥ）を測定し、比較した。結
果を表１に示す。The solid recording sample thus obtained was 1
After standing for a day, the recording density (status A density) and the color difference (water resistance Δ) of the recorded part before and after immersion in tap water for about 1 minute
E), the color difference (ΔE made by light fastness) of the recorded portion before and after irradiation with ultraviolet rays for one hour by an ultraviolet lamp was measured and compared. Table 1 shows the results.
【００４３】[0043]
【表１】 [Table 1]
【００４４】これらの結果より、第一の記録液と第二の
記録液を重ねて記録することにより記録濃度が向上する
ことが確認できた。また、第一の記録液の上に第二の記
録液を重ねて記録することで、耐光性と耐水性が向上す
ることが確認できた。なお、この効果が、単に第二の記
録液の性能によるものでないことは、第一の記録液に第
二の記録液を重ねた場合の方が、第二の記録液の上に第
一の記録液を重ねた場合よりも耐光性、耐水性に優れる
ことから明らかである。From these results, it was confirmed that the recording density was improved by superposing and recording the first recording liquid and the second recording liquid. In addition, it was confirmed that light resistance and water resistance were improved by recording the second recording liquid on the first recording liquid. In addition, the fact that this effect is not simply due to the performance of the second recording liquid is that when the second recording liquid is superimposed on the first recording liquid, the first recording liquid is placed on the second recording liquid. This is apparent from the fact that the light resistance and the water resistance are superior to the case where the recording liquid is overlaid.
【００４５】この効果は、第一の記録液の記録面上に第
二の記録液の樹脂微粒子が付着し、記録面を少なくとも
部分的に覆うためと考えられる。したがって、第一の記
録液の記録面上に付着させる第二の記録液の樹脂微粒子
が多いほど、より大きな効果が得られると考えられる。
樹脂微粒子が多いと微粒子が結合してフィルム化させる
ことができ、そのためより耐水性、耐光性をより向上さ
せることができ、更に光沢性を付与することもできる。
樹脂微粒子を多くするには、記録液中の樹脂量を増加す
る方法、記録する記録液の量を増加する方法、第二の記
録液を複数回重ねて記録する方法等がある。また、フィ
ルム化を容易にするには樹脂のガラス転移点を低くすれ
ばよいが、ガラス転移点が低くなれば樹脂微粒子の安定
性が低下する傾向にあることから、記録液の温度マージ
ン等の信頼性を考慮して設定する必要がある。なお、本
実施例の樹脂では、ガラス転移点は７０℃程度であっ
た。It is considered that this effect is because the resin fine particles of the second recording liquid adhere to the recording surface of the first recording liquid and at least partially cover the recording surface. Therefore, it is considered that the greater the amount of the resin fine particles of the second recording liquid adhered on the recording surface of the first recording liquid, the greater the effect can be obtained.
If the amount of the resin fine particles is large, the fine particles can be combined to form a film, and therefore, the water resistance and light resistance can be further improved, and the gloss can be further provided.
In order to increase the amount of resin fine particles, there are a method of increasing the amount of resin in the recording liquid, a method of increasing the amount of recording liquid to be recorded, and a method of recording the second recording liquid plural times. Further, in order to facilitate film formation, the glass transition point of the resin may be lowered, but if the glass transition point is lowered, the stability of the resin fine particles tends to decrease. It is necessary to set in consideration of reliability. In the resin of this example, the glass transition point was about 70 ° C.
【００４６】本実施例では第一の記録液を記録してから
約１秒後に第二の記録液を重ねて記録したが、より長い
時間を置いて、第一の記録液での記録部を十分に乾燥さ
せてから第二の記録液を重ねたほうが、記録表面に樹脂
が残留しやすくより大きな効果が期待できる反面、記録
速度は遅くなる。In this embodiment, the second recording liquid is superimposed and recorded about one second after the recording of the first recording liquid. However, after a longer time, the recording section of the first recording liquid is used. When the second recording liquid is overlaid after being sufficiently dried, the resin tends to remain on the recording surface and a greater effect can be expected, but the recording speed becomes slower.
【００４７】また、本実施例では記録速度を速くするた
め、第二の記録液にも浸透剤を添加しているが、第一の
記録液を記録してから約１秒程度以内に第二の記録液を
重ねて記録する場合、第一の記録液の影響で記録媒体が
湿潤しており、記録液を吸収しやすい状態となっている
ため、第二の記録液には浸透剤を添加しなくてもよく、
むしろ記録面への樹脂の残留をより増やすためには浸透
剤を添加しないほうが好ましい。In this embodiment, a penetrant is also added to the second recording liquid in order to increase the recording speed. However, the second recording liquid may be added within about one second after recording the first recording liquid. When the recording liquid is overlaid on the recording liquid, a penetrating agent is added to the second recording liquid because the recording medium is wet due to the effect of the first recording liquid and is in a state where the recording liquid is easily absorbed. You do n’t have to
Rather, it is preferable not to add a penetrant in order to further increase the amount of resin remaining on the recording surface.
【００４８】〔実施例２〕次に、カラーの階調記録の場
合の実施例を説明する。[Embodiment 2] Next, an embodiment in the case of color gradation recording will be described.
【００４９】ほぼ同じ色相で濃度の異なる記録液を使用
することで、良好な階調記録が得られることが知られて
いる。イエローは、もともとその色ゆえに他の色相の記
録液よりも低温度でよく、また、濃度の異なる２種類の
記録液を使用する必要のないことも知られている。そこ
で、ここでは前述のシアンの第一及び第二の記録液に加
え、マゼンタの第一及び第二の記録液と、イエローの第
二の記録液を用いてカラー階調記録を行う場合を説明す
る。It is known that good gradation recording can be obtained by using recording liquids having substantially the same hue and different densities. It is known that yellow originally has a lower temperature than recording liquids of other hues because of its color, and that it is not necessary to use two types of recording liquids having different densities. Therefore, here, a case is described in which color gradation recording is performed using the first and second recording liquids of magenta and the second recording liquid of yellow in addition to the first and second recording liquids of cyan described above. I do.
【００５０】染料として、As a dye,
【００５１】 Ｃ．Ｉ．Ｓｏｌｖｅｎｔ Ｙｅｌｌｏｗ １６２ ２０重量部 Ｃ．Ｉ．Ｄｉｓｐｅｒｓｅ Ｒｅｄ ９２ ８重量部C. I. Solvent Yellow 162 20 parts by weight C.I. I. Disperse Red 92 8 parts by weight
【００５２】を使用して、前述と同様の方法により、イ
エローとマゼンタ各色の第二の記録液を調合した。各記
録液の粘度は、イエローで約３ｃＰ、マゼンタで約４ｃ
Ｐ、表面張力はともに約３２ｄｙｎ／ｃｍとなった。The second recording liquid of each color of yellow and magenta was prepared in the same manner as described above. The viscosity of each recording liquid is about 3 cP for yellow and about 4 c for magenta.
Both P and surface tension were about 32 dyn / cm.
【００５３】また、染料に、In addition, the dye
【００５４】 Ｃ．Ｉ．Ａｃｉｄ Ｒｅｄ ２４９ ４重量％C. I. Acid Red 249 4% by weight
【００５５】を使用して、前述と同様の方法により、マ
ゼンタの第一の記録液を調合した。この記録液の粘度は
約２．５ｃＰ、表面張力は約３０ｄｙｎ／ｃｍとなっ
た。Using the above method, a first recording liquid of magenta was prepared in the same manner as described above. The viscosity of the recording liquid was about 2.5 cP, and the surface tension was about 30 dyn / cm.
【００５６】カラー記録の場合、記録液の定着時間が遅
く、記録媒体表面で色の異なる液状の記録液が接触する
と記録液が拡散、流れ出し、混色して、いわゆるブリー
ドを発現し、記録品位を低下させる。本実施例では、こ
のブリードを低減、防止するため、各記録液に浸透剤を
添加して、記録液を速やかに記録媒体内に吸収させるこ
とで定着時間を短くし、ブリードを低減している。しか
し、第二の記録液、特に低濃度のマゼンタやシアンが単
独記録される部分は、ハイライト部分と呼ばれる記録密
度の低い部分であるため、多量の記録液が記録されるこ
とはなく、その結果異なる色相の記録液が接触してブリ
ードを生じることが少ない。従って、第二の記録液のマ
ゼンタ、シアンには浸透剤を添加しなくてもよく、また
添加しても他の記録液よりも量を少なくできる。In the case of color recording, the fixing time of the recording liquid is slow, and when liquid recording liquids of different colors come into contact with each other on the surface of the recording medium, the recording liquid diffuses, flows out and mixes colors, so-called bleeding occurs, and the recording quality is reduced. Lower. In this embodiment, in order to reduce and prevent the bleeding, a penetrant is added to each recording liquid, and the recording liquid is promptly absorbed in the recording medium, thereby shortening the fixing time and reducing the bleeding. . However, since the second recording liquid, particularly the part where only low-density magenta or cyan is recorded, is a part having a low recording density called a highlight part, a large amount of recording liquid is not recorded. As a result, bleeding is less likely to occur due to contact of recording liquids of different hues. Therefore, it is not necessary to add a penetrant to magenta and cyan of the second recording liquid, and even if it is added, the amount can be smaller than that of other recording liquids.
【００５７】記録装置としては、このように調合した第
一及び第二の記録液を使用し、第一の記録液での記録後
に第二の記録液で記録を行える種々のものが使用できる
が、特にインクジェットプリンタでは、図１に示す構成
を例として挙げることができる。このような構成によれ
ば、記録速度の低下を伴わずに、本発明を実現でき、高
品位で耐水性と耐光性がともに高い階調記録が実現でき
る。As the recording apparatus, there can be used various apparatuses which use the first and second recording liquids prepared as described above and can perform recording with the second recording liquid after recording with the first recording liquid. In particular, in an ink jet printer, the configuration shown in FIG. 1 can be mentioned as an example. According to such a configuration, the present invention can be realized without lowering the recording speed, and gradation recording with high quality and high water resistance and high light resistance can be realized.
【００５８】図１に示したシリアルタイプのカラーイン
クジェットプリンタ４０は、記録液を吐出するノズルを
有する記録ヘッド（図示せず）と記録液を保持したイン
クカートリッジ４５が接続、一体化されて、矢印Ｘの主
走査方向に移動するキャリア４２に搭載されている。記
録媒体の紙５０は、紙送りローラ４４により矢印Ｙの副
走査方向に搬送される。In the serial type color ink jet printer 40 shown in FIG. 1, a recording head (not shown) having a nozzle for discharging a recording liquid and an ink cartridge 45 holding the recording liquid are connected and integrated, and an arrow is shown. It is mounted on a carrier 42 that moves in the X main scanning direction. The paper 50 of the recording medium is conveyed by the paper feed roller 44 in the sub-scanning direction indicated by the arrow Y.
【００５９】記録ヘッド部は、記録液を吐出するノズル
のあるノズル面が記録媒体に対向した位置にあり、ステ
ーシャフト４３をガイドとして、矢印Ｘの主走査方向に
往復移動して記録液を画像データに基づき吐出すること
により記録媒体上にドットを形成する。一方、記録媒体
である紙５０は、記録ヘッド部の１走査により記録され
た記録幅に対応して、副走査方向Ｙに所定距離移動す
る。この基本動作の繰り返しにより、ドットにより構成
された画像を記録する。The recording head section is located at a position where the nozzle surface having the nozzles for ejecting the recording liquid faces the recording medium, and reciprocates in the main scanning direction indicated by the arrow X with the stay shaft 43 as a guide. A dot is formed on a recording medium by discharging based on data. On the other hand, the paper 50 as a recording medium moves a predetermined distance in the sub-scanning direction Y corresponding to the recording width recorded by one scan of the recording head unit. By repeating this basic operation, an image composed of dots is recorded.
【００６０】図２は、各記録液に対応した記録ヘッドの
配置の一例を示している。すなわち、主走査方向Ｘに平
行に、第一の記録液のマゼンタ、シアンに対応した二つ
の記録ヘッド６１、６２を配置して記録ヘッド列Ａを設
け、そして第二の記録液のイエロー、マゼンタ、シアン
に対応した三つの記録ヘッド６５、６６、６７を配置し
て記録ヘッド列Ｂを設けている。各記録ヘッドには、各
記録液を吐出するのに用いられる所定の数のノズル６８
が設けられている。この図に示したヘッドの配列を採用
した記録ヘッド部の場合、記録媒体上の同一の位置に対
して記録ヘッド列Ａによる記録が記録ヘッド列Ｂによる
記録よりも先に行われるよう、副走査方向Ｙに平行に、
記録ヘッド列Ａが先頭となるように記録ヘッド列Ａと記
録ヘッド列Ｂを配置して、記録ヘッド部を構成する。こ
のようにヘッド部を構成することで、記録媒体上で第一
の記録液と第二の記録液を重ねて記録する場合、かなら
ず第一の記録液が先に記録される。更に、記録の解像度
やノズルから吐出する記録液の吐出最高周波数、記録幅
等に依存するものの、１副走査分の時間を経過してから
第二のインクを重ねて記録できることになり、記録装置
の記録速度内で、かつ第一の記録液による記録後第二の
記録液を記録するまでの時間を長くとって本発明を実現
できることから、記録速度を低下させることなく、高速
でより効果が大きい記録を実現できる。FIG. 2 shows an example of the arrangement of recording heads corresponding to each recording liquid. That is, two recording heads 61 and 62 corresponding to magenta and cyan of the first recording liquid are arranged in parallel with the main scanning direction X to provide a recording head row A, and yellow and magenta of the second recording liquid are arranged. , Cyan, and three recording heads 65, 66, and 67 are arranged to provide a recording head row B. Each recording head has a predetermined number of nozzles 68 used to discharge each recording liquid.
Is provided. In the case of the print head unit adopting the arrangement of the heads shown in this drawing, the sub-scanning is performed so that the print by the print head array A is performed before the print by the print head array B at the same position on the print medium. Parallel to the direction Y,
The print head array A and the print head array B are arranged such that the print head array A is at the head, thereby forming a print head unit. By configuring the head unit in this manner, when the first recording liquid and the second recording liquid are superimposedly recorded on the recording medium, the first recording liquid is always recorded first. Further, although it depends on the printing resolution, the highest frequency of the printing liquid ejected from the nozzles, the printing width, and the like, the second ink can be overlaid and printed after the elapse of one sub-scanning time. Within the recording speed, and since the present invention can be realized by taking a long time until recording the second recording liquid after recording with the first recording liquid, without reducing the recording speed, more effect at high speed Big records can be realized.
【００６１】記録ヘッド部のもう一つの例として、第一
の記録液に対応した複数の記録ヘッドを主走査方向Ｘに
平行に配置し、そして第二の記録液に対応した複数の記
録ヘッドを第一の記録液に対応した記録ヘッドの列に続
けてやはり主走査方向Ｘに平行に配置して、各記録液に
対応したヘッドが一列に並んだ構成のものを挙げること
ができる。この場合には、この記録ヘッド部を往復走査
して記録を行うときに、往路で第一の記録液を、これに
続く復路で第二の記録液を記録することで、記録速度の
低下なしに本発明を実施できる。As another example of the recording head section, a plurality of recording heads corresponding to a first recording liquid are arranged in parallel in the main scanning direction X, and a plurality of recording heads corresponding to a second recording liquid are arranged. A configuration in which the heads corresponding to the respective recording liquids are arranged in a line, also arranged in parallel with the main scanning direction X following the row of the recording heads corresponding to the first recording liquid. In this case, when recording is performed by reciprocating scanning of the recording head, the first recording liquid is recorded on the outward path and the second recording liquid is recorded on the subsequent return path, so that the recording speed is not reduced. The present invention can be implemented.
【００６２】図１で概説した装置で、図２により説明し
た記録ヘッドの配列を採用したカートリッジを使って、
７２０ｄｐｉの解像度、記録液の最高吐出周波数７ｋＨ
ｚで階調記録を行った結果、高記録濃度で、耐光性、耐
水性が改善された高記録品位の階調画像を得ることがで
きた。Using the cartridge outlined in FIG. 1 and employing the recording head arrangement described in FIG.
Resolution of 720 dpi, maximum ejection frequency of recording liquid 7 kHz
As a result of performing gradation recording at z, it was possible to obtain a high recording quality gradation image with high recording density and improved light fastness and water fastness.
【００６３】本実施例では、イエロー、マゼンタ、シア
ンの３色を用いて記録を行ったが、これらの３色の記録
液に黒色の記録液を加えて、４色の記録液で記録を行う
こともできる。この場合、黒色の記録液は、公知の染料
系や、耐光性、耐水性に優れたカーボンブラック等の顔
料を分散した分散系、更には本発明における第二の記録
液、あるいは本発明による第一と第二の記録液の組み合
わせを使用することができる。しかし、本発明の効果を
より大きなものとするには、顔料分散系の記録液の如
く、耐水性、耐光性に優れたものを使用することが好ま
しい。In the present embodiment, recording was performed using three colors of yellow, magenta, and cyan. However, black recording liquid was added to these three colors of recording liquid, and recording was performed with four colors of recording liquid. You can also. In this case, the black recording liquid is a known dye system, a light-fastness, a dispersion system in which a pigment such as carbon black excellent in water resistance is dispersed, and further a second recording solution in the present invention, or a second recording solution in the present invention. Combinations of the first and second recording liquids can be used. However, in order to further enhance the effects of the present invention, it is preferable to use a material having excellent water resistance and light resistance, such as a pigment dispersion recording liquid.
【００６４】また、記録液の製造方法、構成物質等につ
いても、種々のものが使用可能であり、上記の例に限定
されるものではない。更に、記録装置や記録液の容器
（カートリッジ）も種々のものが使用可能であり、上記
の例に限定されないことは言うまでもない。また、各記
録液の量（カートリッジの容量）も、主に記録する画像
データに従って、第一の記録液を第二の記録液より多く
したり、あるいは逆にしたり、全て同量にしたりでき
る。Further, various methods can be used for the method of producing the recording liquid, constituent materials, and the like, and are not limited to the above examples. Further, various recording apparatuses and recording liquid containers (cartridges) can be used, and it is needless to say that the present invention is not limited to the above examples. Further, the amount of each recording liquid (capacity of the cartridge) can be made larger than the second recording liquid, reversed, or all the same, in accordance with mainly image data to be recorded.
【００６５】[0065]
【発明の効果】以上説明したように、本発明によれば、
各記録液の安定性を低下させず、また記録の信頼性の劣
化もなしに、高記録濃度で、鮮やかで、且つ耐水性、耐
光性が改善された高記録品位の記録が実現できる。As described above, according to the present invention,
It is possible to realize high-quality recording with high recording density, vividness, and improved water resistance and light resistance without lowering the stability of each recording liquid and without deteriorating the reliability of recording.
【００６６】また、階調記録に適用した場合、記録速度
の低下を招くことなく、そして各記録液の安定性を低下
させず、また記録の信頼性の劣化もなしに、高記録濃度
で、鮮やかで、且つ耐水性、耐光性が改善された高記録
品位の階調カラー記録が実現できる。Further, when the present invention is applied to gradation recording, a high recording density can be obtained without lowering the recording speed, without lowering the stability of each recording liquid, and without deteriorating the recording reliability. It is possible to realize high-quality gradation color printing that is vivid and has improved water fastness and light fastness.
【図１】本発明を適用したインクジェット記録装置の一
実施例の要部を示す斜視図である。FIG. 1 is a perspective view showing a main part of an embodiment of an ink jet recording apparatus to which the present invention is applied.
【図２】図１の装置で使用する記録ヘッド部の各記録液
に対応した記録ヘッドの配置例を示す図である。FIG. 2 is a diagram showing an example of the arrangement of recording heads corresponding to each recording liquid of a recording head unit used in the apparatus of FIG.
４０…カラーインクジェットプリンタ ４２…キャリア ４４…紙送りローラ ４５…インクカートリッジ ５０…紙 ６１、６２…第一に記録液の記録ヘッド ６５、６６、６７…第二の記録液の記録ヘッド ６８…ノズル Reference Signs List 40 ... Color inkjet printer 42 ... Carrier 44 ... Paper feed roller 45 ... Ink cartridge 50 ... Paper 61,62 ... First recording liquid recording head 65,66,67 ... Second recording liquid recording head 68 ... Nozzle
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 重治 神奈川県川崎市中原区上小田中４丁目１番 １号 富士通株式会社内 (72)発明者 上田 裕男 神奈川県川崎市中原区上小田中４丁目１番 １号 富士通株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigeharu Suzuki 4-1-1, Uedanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Prefecture Inside Fujitsu Limited (72) Inventor Hiroo Ueda 4-chome, Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa No. 1 in Fujitsu Limited
Claims (11)
一及び第二の記録液を用いて記録媒体に記録を行う記録
方法であって、第一の記録液として少なくとも水溶性染
料と水を含むものを使用し、第二の記録液として少なく
とも、着色剤により着色されていて且つイオン性基を含
有している樹脂微粒子と、この微粒子を分散させる水を
含むものを使用し、そして第一の記録液で記録媒体への
記録を行った後に、第二の記録液で、記録媒体上の少な
くとも第一の記録液により記録を行った部分に重ねて記
録を行うことを特徴とする記録方法。1. A recording method for recording on a recording medium using a first and a second recording liquid for a recording liquid of at least one color, wherein the first recording liquid contains at least a water-soluble dye and water. The second recording liquid, at least a resin fine particle colored with a colorant and containing an ionic group, and a liquid containing water for dispersing the fine particles, and the first recording liquid is used. A recording method comprising: performing recording on a recording medium with a recording liquid; and then performing recording with a second recording liquid at least on a portion of the recording medium on which recording has been performed with the first recording liquid.
記録液が、色が同じで種類を異にするそれぞれ染料と着
色剤を用いた記録液である、請求項１記載の方法。2. The method according to claim 1, wherein the first recording liquid and the second recording liquid for the same color are recording liquids using dyes and colorants of the same color but of different types. .
二の記録液を用いてカラー記録を行う、請求項１又は２
記載の方法。3. A color recording is performed using at least two sets of first and second recording liquids having different colors.
The described method.
の記録媒体への浸透を促進する浸透促進剤を含有させ
る、請求項１から３までのいずれか一つに記載の方法。4. The method according to claim 1, wherein at least the first recording liquid contains a penetration enhancer for promoting the penetration of the recording liquid into the recording medium.
及びシアンの各色の記録液を使用し、第二の記録液とし
てマゼンタ及びシアンの各色の記録液を使用する、請求
項１から４までのいずれか一つに記載の方法。5. The method according to claim 1, wherein a recording liquid of each color of yellow, magenta and cyan is used as the first recording liquid, and a recording liquid of each color of magenta and cyan is used as the second recording liquid. The method according to any one of the above.
おいて、第二の記録液としてその記録濃度が第一の記録
液の記録濃度よりも低くなるものを使用する、請求項５
記載の方法。6. The first recording liquid and the second recording liquid of the same color, wherein the second recording liquid whose recording density is lower than the recording density of the first recording liquid is used. 5
The described method.
一及び第二の記録液を用いて記録媒体に記録を行う記録
装置であって、第一の記録液として少なくとも水溶性染
料と水を含むものを使用し、第二の記録液として少なく
とも、着色剤により着色されていて且つイオン性基を含
有している樹脂微粒子と、この微粒子を分散させる水を
含むものを使用し、そして第一の記録液で記録媒体への
記録を行った後に、第二の記録液で記録媒体上の少なく
とも第一の記録液により記録を行った部分に重ねて記録
を行う手段を含むことを特徴とする記録装置。7. A recording apparatus for recording a recording liquid of at least one color on a recording medium using first and second recording liquids, wherein the first recording liquid contains at least a water-soluble dye and water. The second recording liquid, at least a resin fine particle colored with a colorant and containing an ionic group, and a liquid containing water for dispersing the fine particles, and the first recording liquid is used. A recording method, comprising: performing recording on a recording medium with a recording liquid, and then performing recording with a second recording liquid by overlapping at least a portion of the recording medium on which recording has been performed with the first recording liquid. apparatus.
を記録媒体に吐出するノズルを有する複数の記録液に対
応した複数の記録ヘッドを主走査方向に走査し、この主
走査方向に垂直な副走査方向に記録媒体を副走査して記
録を行うシリアルタイプのインクジェットプリンタであ
って、色の異なる第一の記録液のおのおのに対応した複
数の記録ヘッドを主走査方向に平行に並べて構成した第
一の記録液の記録ヘッド列と、色の異なる第二の記録液
のおのおのに対応した複数の記録ヘッドを主走査方向に
平行に並べて構成した第二の記録液の記録ヘッド列を、
主走査方向に対し垂直方向に並列して設け、且つ第一の
記録液が第二の記録液よりも先に記録されるよう、第一
の記録液の記録ヘッド列を副走査方向に対して先頭とな
る位置に配置したことを特徴とする、請求項７記載の記
録装置。8. The apparatus scans in a main scanning direction a plurality of recording heads corresponding to a plurality of recording liquids having nozzles for discharging the recording liquid to the recording medium, facing the recording medium, and in the main scanning direction. A serial type ink jet printer that performs recording by sub-scanning a recording medium in a vertical sub-scanning direction, wherein a plurality of recording heads corresponding to respective first recording liquids of different colors are arranged in parallel in the main scanning direction. The configured first recording liquid recording head row and the second recording liquid recording head row constituted by arranging a plurality of recording heads corresponding to each of the second recording liquids having different colors in parallel in the main scanning direction. ,
The recording head array of the first recording liquid is arranged in the sub-scanning direction so that the first recording liquid is recorded earlier than the second recording liquid, provided in parallel with the main scanning direction in the vertical direction. The recording apparatus according to claim 7, wherein the recording apparatus is arranged at a leading position.
を記録媒体に吐出するノズルを有する複数の記録液に対
応した複数の記録ヘッドを主走査方向に走査し、この主
走査方向に垂直な副走査方向に記録媒体を副走査して記
録を行うシリアルタイプのインクジェットプリンタであ
って、色の異なる第一の記録液のおのおのに対応した複
数の記録ヘッドと、色の異なる第二の記録液のおのおの
に対応した複数の記録ヘッドを主走査方向に平行に一列
に並べた記録ヘッド列を設け、この記録ヘッド列の主走
査方向の往路走査時に第一の記録液の記録を行い、これ
に続く復路走査時に第二の記録液の記録を行うようにし
たことを特徴とする、請求項７記載の記録装置。9. The apparatus scans in a main scanning direction a plurality of recording heads corresponding to a plurality of recording liquids having nozzles for discharging the recording liquid to the recording medium facing the recording medium, and in the main scanning direction. A serial type ink jet printer which performs recording by sub-scanning a recording medium in a vertical sub-scanning direction, a plurality of recording heads corresponding to each of the first recording liquids having different colors, and a second recording head having different colors. Providing a recording head row in which a plurality of recording heads corresponding to each of the recording liquids are arranged in a row in parallel with the main scanning direction, and performing recording of the first recording liquid at the time of forward scanning of the recording head row in the main scanning direction, 8. The printing apparatus according to claim 7, wherein printing of the second printing liquid is performed at the time of the subsequent backward scanning.
第一及び第二の記録液を用いて記録媒体上に記録を行う
ためのカートリッジであって、少なくとも水溶性染料及
び水を含む第一の記録液と、少なくとも着色剤により着
色されていて且つイオン性基を含有している樹脂微粒子
及びこの微粒子を分散させる水を含む第二の記録液をそ
れぞれ収容した容器を組み合わせて含むことを特徴とす
る記録液カートリッジ。10. A cartridge for recording on at least one color recording liquid on a recording medium using the first and second recording liquids, the first recording comprising at least a water-soluble dye and water. Liquid and a container containing a second recording liquid containing at least a resin fine particle colored with at least a coloring agent and containing an ionic group, and water for dispersing the fine particles. Recording liquid cartridge.
タ及びシアンの各色の記録液を使用し、第二の記録液と
してマゼンタ及びシアンの各色の記録液を使用する、請
求項１０記載の記録液カートリッジ。11. The recording liquid according to claim 10, wherein a recording liquid of each color of yellow, magenta and cyan is used as the first recording liquid, and a recording liquid of each color of magenta and cyan is used as the second recording liquid. cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15119697A JP3988210B2 (en) | 1997-06-09 | 1997-06-09 | Recording method and recording apparatus using recording liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15119697A JP3988210B2 (en) | 1997-06-09 | 1997-06-09 | Recording method and recording apparatus using recording liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10338830A true JPH10338830A (en) | 1998-12-22 |
| JP3988210B2 JP3988210B2 (en) | 2007-10-10 |
Family
ID=15513364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15119697A Expired - Fee Related JP3988210B2 (en) | 1997-06-09 | 1997-06-09 | Recording method and recording apparatus using recording liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3988210B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1022151A1 (en) * | 1998-07-27 | 2000-07-26 | Seiko Epson Corporation | Method of ink-jet recording with two fluids |
| US6631641B1 (en) | 1999-06-08 | 2003-10-14 | Eads Deutschland Gmbh | Device and method for determining frequency and amplitude of an oscillating structure, especially for measuring acceleration or rotational rates |
| US6698875B2 (en) | 2000-03-06 | 2004-03-02 | Seiko Epson Corporation | Ink set and ink cartridge and recording method, recording material and recording apparatus |
-
1997
- 1997-06-09 JP JP15119697A patent/JP3988210B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1022151A1 (en) * | 1998-07-27 | 2000-07-26 | Seiko Epson Corporation | Method of ink-jet recording with two fluids |
| EP1022151A4 (en) * | 1998-07-27 | 2002-01-16 | Seiko Epson Corp | Method of ink-jet recording with two fluids |
| US6439708B1 (en) | 1998-07-27 | 2002-08-27 | Seiko Epson Corporation | Method of ink-jet recording with two fluids |
| US6631641B1 (en) | 1999-06-08 | 2003-10-14 | Eads Deutschland Gmbh | Device and method for determining frequency and amplitude of an oscillating structure, especially for measuring acceleration or rotational rates |
| US6698875B2 (en) | 2000-03-06 | 2004-03-02 | Seiko Epson Corporation | Ink set and ink cartridge and recording method, recording material and recording apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3988210B2 (en) | 2007-10-10 |
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