JPH07314883A - Recording sheet and recorded material - Google Patents
Recording sheet and recorded materialInfo
- Publication number
- JPH07314883A JPH07314883A JP6111279A JP11127994A JPH07314883A JP H07314883 A JPH07314883 A JP H07314883A JP 6111279 A JP6111279 A JP 6111279A JP 11127994 A JP11127994 A JP 11127994A JP H07314883 A JPH07314883 A JP H07314883A
- Authority
- JP
- Japan
- Prior art keywords
- recording sheet
- receiving layer
- porous
- porous ink
- derivatives
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、記録用シート及び記録
物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording sheet and recorded matter.
【０００２】[0002]
【従来の技術】インクジェット方式、静電転写方式、昇
華型熱転写方式等の各種プリンターを用いて画像を形成
することが多くなっている。この場合、普通の紙では、
十分な吸収性や解像度が得られず、また透明なものも得
られないので、例えば、特開平２−２７６６７０号等の
ように、基材上に無機の多孔質層を形成した記録用シー
トが提案されている。2. Description of the Related Art Images are often formed using various printers such as an ink jet system, an electrostatic transfer system, and a sublimation type thermal transfer system. In this case, on plain paper,
Since sufficient absorption and resolution cannot be obtained, and a transparent material cannot be obtained, a recording sheet having an inorganic porous layer formed on a substrate is disclosed, for example, in JP-A-2-276670. Proposed.
【０００３】[0003]
【発明が解決しようとする課題】上記のような無機の多
孔質層を有する記録用シートは、インクの吸収性が良好
であり、かつ、色素の定着性も良好である。しかし、こ
の無機の多孔質層を有する記録用シートにあっては、保
存中に変色をきたす場合があった。The recording sheet having the above-mentioned inorganic porous layer has good ink absorbability and good dye fixing property. However, the recording sheet having this inorganic porous layer may be discolored during storage.
【０００４】したがって、本発明は、インクの吸収性が
良好で、かつ、色素の定着性の良好な記録用シートであ
って、長期の保存でも変色のない記録用シートを得るこ
とを目的とする。Therefore, an object of the present invention is to obtain a recording sheet which has a good ink absorbency and a good dye fixing property and which does not discolor even after long-term storage. .
【０００５】[0005]
【課題を解決するための手段】本発明によれば、基材上
に、チオ尿素誘導体、チオセミカルバジド誘導体及びチ
オカルボヒドラジド誘導体からなる群より選ばれた少な
くとも１種以上の化合物を含有する多孔質インク受理層
を有する記録用シートが提供される。According to the present invention, a porous material containing, on a substrate, at least one compound selected from the group consisting of thiourea derivatives, thiosemicarbazide derivatives and thiocarbohydrazide derivatives. A recording sheet having an ink receiving layer is provided.
【０００６】また、本発明によれば、基材上に、チオ尿
素誘導体、チオセミカルバジド誘導体及びチオカルボヒ
ドラジド誘導体からなる群より選ばれた少なくとも１種
以上の化合物を含有する多孔質インク受理層を有し、こ
の多孔質インク受理層に、色素が担持された記録物が提
供される。Further, according to the present invention, a porous ink-receiving layer containing at least one compound selected from the group consisting of thiourea derivatives, thiosemicarbazide derivatives and thiocarbohydrazide derivatives on a substrate. A recording material in which a dye is carried on the porous ink receiving layer is provided.
【０００７】チオ尿素誘導体としては、好ましくは、チ
オ尿素、Ｎ−メチルチオ尿素、Ｎ，Ｎ’−ジメチルチオ
尿素、テトラメチルチオ尿素等が用いられる。チオセミ
カルバジド誘導体としては、好ましくは、チオセミカル
バジド、Ｎ−メチルチオセミカルバジド、Ｎ−フェニル
チオセミカルバジド等が用いられる。チオカルボヒドラ
ジド誘導体としては、好ましくは、チオカルボヒドラジ
ド、Ｎ−メチル−Ｎ’−ブチルチオカルボヒドラジド等
が用いられる。As the thiourea derivative, thiourea, N-methylthiourea, N, N'-dimethylthiourea, tetramethylthiourea and the like are preferably used. As the thiosemicarbazide derivative, thiosemicarbazide, N-methylthiosemicarbazide, N-phenylthiosemicarbazide and the like are preferably used. As the thiocarbohydrazide derivative, thiocarbohydrazide, N-methyl-N′-butylthiocarbohydrazide and the like are preferably used.
【０００８】多孔質インク受理層に、チオ尿素誘導体、
チオセミカルバジド誘導体及びチオカルボヒドラジド誘
導体からなる群より選ばれた少なくとも１種以上の化合
物（以下、本変色防止剤という）を付与する方法として
は、あらかじめ形成した多孔質インク受理層に、本変色
防止剤を適当な溶媒に溶解した溶液を浸漬法またはスプ
レー法などで付与する方法が好ましく採用される。ある
いは、多孔質インク受理層を形成する原料に本変色防止
剤をあらかじめ混合しておく方法なども採用できる。The porous ink receiving layer contains a thiourea derivative,
As a method of applying at least one compound selected from the group consisting of thiosemicarbazide derivatives and thiocarbohydrazide derivatives (hereinafter referred to as the present discoloration inhibitor), a preformed porous ink-receiving layer may be provided with the present discoloration prevention agent. A method of applying a solution in which the agent is dissolved in a suitable solvent by an immersion method or a spray method is preferably adopted. Alternatively, a method in which the raw material for forming the porous ink receiving layer is mixed with the present discoloration preventing agent in advance can also be used.
【０００９】本変色防止剤の含有量としては、多孔質イ
ンク受理層の重量を基準として０．０１〜１０重量％で
あることが好ましい。本変色防止剤の含有量が０．０１
重量％に満たない場合は、本発明の効果が十分発現せ
ず、記録用シートの変色が起こるおそれがあるので好ま
しくない。本変色剤の含有量が１０重量％を超える場合
は、多孔質層のインクの吸収性を阻害するおそれがある
ので好ましくない。本変色防止剤のより好ましい含有量
は、０．０５〜５重量％である。The content of the present discoloration preventing agent is preferably 0.01 to 10% by weight based on the weight of the porous ink receiving layer. The content of the discoloration preventing agent is 0.01
If it is less than 10% by weight, the effect of the present invention is not sufficiently exhibited, and discoloration of the recording sheet may occur, which is not preferable. If the content of the present color changing agent exceeds 10% by weight, the ink absorptivity of the porous layer may be impaired, which is not preferable. The more preferable content of the present discoloration preventing agent is 0.05 to 5% by weight.
【００１０】本発明において、多孔質インク受理層は、
記録の際にインクを吸収し定着し得る無機の多孔質層で
ある。多孔質インク受理層の厚さは、薄すぎると色素を
十分担持できず、色濃度の低い印刷物しか得られないお
それがあるので好ましくなく、逆に厚すぎると多孔質イ
ンク受理層の強度が低下したり、あるいは透明性が減少
して印刷物の透明性あるいは質感が損なわれるおそれが
あるので好ましくない。多孔質インク受理層の好ましい
厚さは、１〜５０μｍである。In the present invention, the porous ink receiving layer is
An inorganic porous layer capable of absorbing and fixing ink during recording. If the thickness of the porous ink-receiving layer is too thin, it may not be able to sufficiently support the dye, and only a printed matter having a low color density may be obtained, which is not preferable. Conversely, if it is too thick, the strength of the porous ink-receiving layer will decrease. Or the transparency may be reduced to impair the transparency or texture of the printed matter, which is not preferable. The preferable thickness of the porous ink receiving layer is 1 to 50 μm.
【００１１】多孔質インク受理層は、無機粒子を好まし
くはバインダーで結合した構成であることが好ましい。
無機粒子の材質としては、シリカもしくはアルミナまた
はこれらの水和物が好ましい。これらの材質のなかで
も、特に、擬ベーマイトが好ましい。擬ベーマイトから
なる多孔質層は、吸収性が良好であるとともに、色素を
選択的によく吸着するため、各種の記録方式を用いて、
色濃度が高く鮮明な記録物が得られるからである。ここ
で、擬ベーマイトは、ＡｌＯＯＨの組成式で表されるア
ルミナ水和物であり、擬ベーマイトからなる多孔質層
は、細孔構造を有する凝集体である。The porous ink receiving layer preferably has a structure in which inorganic particles are bound by a binder.
As the material of the inorganic particles, silica or alumina or a hydrate of these is preferable. Among these materials, pseudo-boehmite is particularly preferable. The porous layer made of pseudo-boehmite has good absorbency and, at the same time, selectively and well adsorbs the dye, various recording methods are used.
This is because a clear recorded matter having a high color density can be obtained. Here, pseudo-boehmite is an alumina hydrate represented by the composition formula of AlOOH, and the porous layer made of pseudo-boehmite is an aggregate having a pore structure.
【００１２】多孔質インク受理層が擬ベーマイトからな
っている場合には、本変色防止剤の含有量は擬ベーマイ
ト１ｇあたり、０．０５〜５０ｍｇであることが好まし
い。本変色防止剤の含有量のより好ましい範囲は、１〜
２０ｍｇである。When the porous ink receiving layer is composed of pseudo-boehmite, the content of the present discoloration preventing agent is preferably 0.05 to 50 mg per 1 g of pseudo-boehmite. The more preferable range of the content of the present discoloration preventing agent is 1 to
It is 20 mg.
【００１３】擬ベーマイト多孔質インク受理層として
は、その細孔構造が実質的に半径が１〜１０ｎｍの細孔
からなり、細孔容積が０．３〜１．０ｃｃ／ｇであるこ
とが、十分な吸収性を有しかつ透明性もあるので好まし
い。この範囲の細孔構造を有する擬ベーマイト多孔質イ
ンク受理層を用いれば、基材が透明である場合には、記
録用シートも透明なものが得られる。基材が不透明であ
る場合には、基材の質感を損なわずにインクの吸収性等
の必要とされる物性を記録用シートに付与することが可
能である。また、擬ベーマイト多孔質インク受理層の平
均細孔半径が３〜７ｎｍの範囲であればさらに好まし
い。なお、細孔径分布の測定は、窒素吸脱着法による。In the pseudo-boehmite porous ink receiving layer, the pore structure is substantially composed of pores having a radius of 1 to 10 nm, and the pore volume is 0.3 to 1.0 cc / g. It is preferable because it has sufficient absorbency and transparency. When the pseudo-boehmite porous ink receiving layer having a pore structure in this range is used, a transparent recording sheet can be obtained when the base material is transparent. When the base material is opaque, it is possible to impart required physical properties such as ink absorbency to the recording sheet without impairing the texture of the base material. Further, it is more preferable that the average pore radius of the pseudo-boehmite porous ink receiving layer is in the range of 3 to 7 nm. The pore size distribution is measured by the nitrogen adsorption / desorption method.
【００１４】上記のような細孔構造を有する擬ベーマイ
ト多孔質インク受理層を製造するには、アルミニウムの
アルコキシドを加水分解して得たベーマイトゾルを用い
ることが好ましい。擬ベーマイト多孔質インク受理層を
基材上に塗布する手段としては、ベーマイトゾルに、好
ましくはバインダーを加えてスラリー状とし、ロールコ
ーター、エアナイフコーター、ブレードコーター、ロッ
ドコーター、バーコーターなどを用いて基材上に塗布
し、乾燥する方法を好ましくは採用できる。In order to produce the pseudo-boehmite porous ink receiving layer having a pore structure as described above, it is preferable to use a boehmite sol obtained by hydrolyzing an aluminum alkoxide. As a means for applying the pseudo-boehmite porous ink receiving layer on the substrate, a boehmite sol, preferably in the form of a slurry by adding a binder, using a roll coater, an air knife coater, a blade coater, a rod coater, a bar coater or the like. A method of coating on a substrate and drying can be preferably adopted.
【００１５】多孔質インク受理層に用いられるバインダ
ーとしては、でんぷんやその変性物、ポリビニルアルコ
ール及びその変性物、ＳＢＲ（ブタジエンスチレンゴ
ム）ラテックス、ＮＢＲ（ブタジエンアクリロニトリル
ゴム）ラテックス、ヒドロキシセルロース、ポリビニル
ピロリドン等の有機物を用いることができる。バインダ
ーの使用量は、少ないと多孔質インク受理層の強度が不
十分になるおそれがあり、逆に多すぎるとインクの吸収
量や色素の担持量が低くなるおそれがあるので、無機粒
子の５〜５０重量％程度が好ましい。As the binder used in the porous ink receiving layer, starch, modified products thereof, polyvinyl alcohol and modified products thereof, SBR (butadiene styrene rubber) latex, NBR (butadiene acrylonitrile rubber) latex, hydroxycellulose, polyvinylpyrrolidone, etc. The organic substance of can be used. If the amount of the binder used is too small, the strength of the porous ink-receiving layer may be insufficient. On the contrary, if the amount is too large, the amount of ink absorbed and the amount of dye supported may be low. It is preferably about 50% by weight.
【００１６】本発明において、基材としては種々のもの
を使用することができる。例えば、ポリエチレンテレフ
タレート等のポリエステル、ポリカーボネート、ＥＴＦ
Ｅ等のフッ素系樹脂等のプラスチック、あるいは紙を好
適に使用することができる。これらの基材には、多孔質
インク受理層との接着強度を向上させる目的で、コロナ
放電処理やアンダーコート等を行うこともできる。In the present invention, various materials can be used as the base material. For example, polyester such as polyethylene terephthalate, polycarbonate, ETF
A plastic such as a fluorine-based resin such as E, or paper can be preferably used. These substrates may be subjected to corona discharge treatment, undercoating or the like for the purpose of improving the adhesive strength with the porous ink receiving layer.
【００１７】[0017]
【作用】上記のような多孔質インク受理層の保存中にお
ける変色は、多孔質インク受理層が環境等からくる樹脂
の可塑剤のようなものまで吸着し、吸着された可塑剤が
空気中の窒素酸化物等と反応して、記録用シートを黄色
に変色させてしまうから生じると考えられる。The above-described discoloration of the porous ink-receiving layer during storage is caused by the fact that the porous ink-receiving layer adsorbs even a plasticizer such as a resin coming from the environment, and the adsorbed plasticizer is exposed to air. It is considered that this occurs because it reacts with nitrogen oxides and the like, causing the recording sheet to turn yellow.
【００１８】本発明において使用するチオ尿素誘導体、
チオセミカルバジド誘導体、チオカルボヒドラジド誘導
体は、多孔質インク受理層に吸着された可塑剤が窒素酸
化物と反応するよりも速く、窒素酸化物と反応するか
ら、たとえ可塑剤が多孔質インク受理層に吸着されたと
しても、可塑剤は窒素酸化物とほとんど反応せず、その
結果、記録用シートの黄変を防止できる。A thiourea derivative used in the present invention,
The thiosemicarbazide derivative and the thiocarbohydrazide derivative react with nitrogen oxide faster than the plasticizer adsorbed on the porous ink-receiving layer reacts with nitrogen oxide. Even if adsorbed, the plasticizer hardly reacts with nitrogen oxides, and as a result, yellowing of the recording sheet can be prevented.
【００１９】なお、本発明の記録用シートは、インクジ
ェットプリンター用の記録媒体として特に好ましく用い
られる。本発明の記録用シートは、インクの吸収性、定
着性が特にすぐれるため、鮮明な色、高い色濃度を表現
でき、かつ、シャープなドットを形成できるからであ
る。The recording sheet of the present invention is particularly preferably used as a recording medium for ink jet printers. This is because the recording sheet of the present invention is particularly excellent in ink absorbency and fixability, so that it is possible to express a vivid color and high color density and to form sharp dots.
【００２０】[0020]
実施例１ 容量２リットルのガラス製反応器に、水５４０ｇとイソ
プロピルアルコール６７６ｇを仕込み、マントルヒータ
ーにより液温を７５℃に加熱した。撹拌しながらアルミ
ニウムイソプロポキシド３０６ｇを添加し、液温を７５
〜７８℃に保持しながら５時間加水分解を行った。その
後９５℃に昇温し、酢酸９ｇを添加して４８時間、７５
〜７８℃に保持して解膠した。さらにこの液を、９００
ｇになるまで濃縮して、白色のゾルを得た。このゾルの
乾燥物は擬ベーマイトであった。Example 1 A glass reactor having a capacity of 2 liters was charged with 540 g of water and 676 g of isopropyl alcohol and heated to 75 ° C. by a mantle heater. While stirring, 306 g of aluminum isopropoxide was added, and the liquid temperature was adjusted to 75
Hydrolysis was carried out for 5 hours while maintaining at ~ 78 ° C. After that, the temperature was raised to 95 ° C., 9 g of acetic acid was added, and the mixture was added for 48 hours to
It was kept at ˜78 ° C. for peptization. Further add this solution to 900
Concentration to g gave a white sol. The dried product of this sol was pseudo-boehmite.
【００２１】このアルミナゾル５重量部にポリビニール
アルコール１重量部を加えて、さらに水を加えて、固形
分約１０％のスラリーを調製した。このスラリーを、コ
ロナ放電処理を施したポリエチレンテレフタレート（厚
さ１００μｍ）からなる基材の上に、バーコーターを用
いて乾燥時の層厚が３０μｍになるように塗布、乾燥し
ベーマイト質の多孔質インク受理層を形成した。To 5 parts by weight of this alumina sol, 1 part by weight of polyvinyl alcohol was added, and further water was added to prepare a slurry having a solid content of about 10%. This slurry was applied onto a base material made of polyethylene terephthalate (thickness 100 μm) that had been subjected to corona discharge treatment, using a bar coater so that the layer thickness when dried was 30 μm, and dried to form a boehmite porous material. An ink receiving layer was formed.
【００２２】上記のようにして得られた記録用シートの
塗工面を、表１に示す処理薬剤の種々の濃度の水溶液に
浸漬し、均一に溶液を塗布した。これを垂直に吊して風
乾した後、ドラム乾燥器にて１４０℃、４分間加熱焼成
した。この結果、透明な記録用シートが得られた。The coated surface of the recording sheet obtained as described above was dipped in aqueous solutions of various concentrations of the treatment chemicals shown in Table 1 to uniformly apply the solution. This was hung vertically and air-dried, and then heated and baked at 140 ° C. for 4 minutes in a drum dryer. As a result, a transparent recording sheet was obtained.
【００２３】この記録用シートの一部を切り出し、塩酸
水溶液に１２時間浸漬した後の溶液をクロロホルムで抽
出しガスクロマトグラフィーで定量して、記録用シート
の多孔質インク受理層中のチオ尿素誘導体、チオセミカ
ルバジド誘導体またはチオカルボヒドラジド誘導体から
なる処理薬剤の量（担持量）を求めた。A portion of this recording sheet was cut out and immersed in an aqueous hydrochloric acid solution for 12 hours, and the solution was extracted with chloroform and quantified by gas chromatography to obtain the thiourea derivative in the porous ink-receiving layer of the recording sheet. The amount (supported amount) of the treatment agent comprising the thiosemicarbazide derivative or the thiocarbohydrazide derivative was determined.
【００２４】上記のような薬剤処理を行った本実施例の
記録用シートに、インクジェットプリンターを用いて記
録を行ったところ、インクの吸収性及び色素の定着性は
優れていた。Recording was carried out on the recording sheet of this example which had been subjected to the above-mentioned chemical treatment using an ink jet printer. As a result, the ink absorbability and dye fixing property were excellent.
【００２５】一方、記録用シートの塗工面に同じ大きさ
のポリ塩化ビニルフィルムを重ねて、室内で１４日間保
持し、シート端部における黄色の着色の有無を目視で確
認した。結果を表１に示す。また、比較のために、薬剤
処理を行わない記録用シートについても同じ方法で着色
の有無を調べた。その結果も表１に「未処理」として示
す。記録用シートの塗工面にポリ塩化ビニルフィルムを
重ねたのは、多孔質インク受理層の変色を加速させるた
めである。すなわち、記録用シートの塗工面にポリ塩化
ビニルフィルムを重ねることによって、樹脂（ポリ塩化
ビニルフイルム）の可塑剤の多孔質インク受理層による
吸着が加速され、それによって、記録用シートの黄変も
加速されるからである。On the other hand, a polyvinyl chloride film of the same size was overlaid on the coated surface of the recording sheet and kept in a room for 14 days, and the presence or absence of yellow coloring at the edge of the sheet was visually confirmed. The results are shown in Table 1. Also, for comparison, the presence or absence of coloration was examined by the same method for the recording sheet that was not subjected to the chemical treatment. The results are also shown in Table 1 as "untreated". The reason why the polyvinyl chloride film was overlaid on the coated surface of the recording sheet was to accelerate the discoloration of the porous ink receiving layer. That is, by stacking a polyvinyl chloride film on the coated surface of the recording sheet, the adsorption of the plasticizer of the resin (polyvinyl chloride film) by the porous ink receiving layer is accelerated, which also causes the yellowing of the recording sheet. Because it will be accelerated.
【００２６】[0026]
【表１】 [Table 1]
【００２７】表１において、処理液の処理薬剤の濃度の
単位は重量百分率、記録用シート中の処理薬剤の担持量
の単位は擬ベーマイト（ＡｌＯＯＨ）１ｇ当たりのｍｇ
数である。表１の黄変の欄において、「有」とは１枚の
記録用シートを観察した場合にも肉眼で明瞭に着色が観
察されたこと、「少」とは記録用シートを３枚重ねたと
きに肉眼で着色が観察されたこと、「無」とは記録用シ
ートを３枚重ねても肉眼で着色が観察されなかったこと
を示す。なお、処理液濃度及び担持量の単位は、以下の
表２においても同じである。In Table 1, the unit of the concentration of the treatment agent in the treatment liquid is a weight percentage, and the unit of the amount of the treatment agent carried in the recording sheet is mg per 1 g of pseudo-boehmite (AlOOH).
Is a number. In the column of yellowing in Table 1, “yes” means that coloring was clearly observed with the naked eye even when one recording sheet was observed, and “small” means that three recording sheets were stacked. Sometimes coloring was observed with the naked eye, and “absent” means that the coloring was not observed with the naked eye even when three recording sheets were stacked. The units of the concentration of the treatment liquid and the supported amount are the same in Table 2 below.
【００２８】実施例２ 紙の基材上に多孔質シリカを実施例１と同様の方法で塗
布して得られたコート紙の塗工面を、表２に示す処理薬
剤の種々の濃度の水溶液に浸漬し、均一に溶液を塗布し
た。これを垂直に吊して風乾したあと、ドラム乾燥器に
て１４０℃、４分間加熱焼成した。Example 2 The coated surface of coated paper obtained by applying porous silica onto a paper base material in the same manner as in Example 1 was treated with aqueous solutions of various concentrations of the treatment chemicals shown in Table 2. The solution was dipped and applied uniformly. This was hung vertically and air-dried, and then heated and baked at 140 ° C. for 4 minutes in a drum dryer.
【００２９】このようにして得られた記録用シートの一
部を切り出し、塩酸水溶液に１２時間浸漬した後の溶液
をクロロホルムで抽出しガスクロマトグラフィーで定量
して、記録用シートの多孔質中の処理薬剤の担持量を求
めた。A portion of the recording sheet thus obtained was cut out, immersed in an aqueous hydrochloric acid solution for 12 hours, and then the solution was extracted with chloroform and quantified by gas chromatography to determine the content of the porous recording sheet. The amount of treatment chemical carried was determined.
【００３０】上記のような薬剤処理を行った本実施例の
記録用シートに、インクジェットプリンターを用いて記
録を行ったところ、インクの吸収性及び色素の定着性は
優れていた。Recording was carried out on the recording sheet of this example which had been subjected to the above-mentioned chemical treatment using an ink jet printer. As a result, the ink absorbability and the dye fixing property were excellent.
【００３１】一方、記録用シートの塗工面に同じ大きさ
のポリ塩化ビニルフィルムを重ねて、室内で１４日間保
持し、シート端部における黄色の着色の有無を実施例１
と同様にして目視で確認した。結果を表２に示す。ま
た、比較のために、薬剤処理を行わない記録用シートに
ついても同じ方法で着色の有無を調べた。その結果も表
２に「未処理」として示す。On the other hand, a polyvinyl chloride film of the same size was overlaid on the coated surface of the recording sheet and kept in a room for 14 days, and the presence or absence of yellow coloring at the sheet edge was determined in Example 1.
It was visually confirmed in the same manner as. The results are shown in Table 2. Also, for comparison, the presence or absence of coloration was examined by the same method for the recording sheet that was not subjected to the chemical treatment. The results are also shown in Table 2 as "untreated".
【００３２】[0032]
【表２】 [Table 2]
【００３３】表２の黄変の欄において、「有」とは１枚
の記録用シートを観察した場合に肉眼で明瞭に着色が観
察されたこと、「少」とは肉眼でごくわずかに着色が観
察されたこと、「無」とは肉眼では着色が観察されなか
ったことを示す。In the column of yellowing in Table 2, "yes" means that coloring was clearly observed with the naked eye when one recording sheet was observed, and "small" means that the coloring was very slight with the naked eye. Was observed, and “absent” means that coloring was not observed with the naked eye.
【００３４】[0034]
【発明の効果】本発明の記録用シートは、インクの吸収
性が良好で、かつ、色素の定着性が良好である。しか
も、長期の保存でも変色が生じない。本発明の記録用シ
ートは、種々の記録方式に有効であるが、特にインクジ
ェットプリンター用の記録媒体に適する。The recording sheet of the present invention has good ink absorbability and good dye fixing property. Moreover, discoloration does not occur even after long-term storage. The recording sheet of the present invention is effective for various recording systems, but is particularly suitable for a recording medium for an inkjet printer.
Claims (5)
バジド誘導体及びチオカルボヒドラジド誘導体からなる
群より選ばれた少なくとも１種以上の化合物を含有する
多孔質インク受理層を有する記録用シート。1. A recording sheet having, on a substrate, a porous ink-receiving layer containing at least one compound selected from the group consisting of thiourea derivatives, thiosemicarbazide derivatives and thiocarbohydrazide derivatives.
らなる層である請求項１記載の記録用シート。2. The recording sheet according to claim 1, wherein the porous ink receiving layer is a layer made of pseudoboehmite.
ター用の記録媒体である請求項１または請求項２記載の
記録用シート。3. The recording sheet according to claim 1, wherein the recording sheet is a recording medium for an inkjet printer.
バジド誘導体及びチオカルボヒドラジド誘導体からなる
群より選ばれた少なくとも１種以上の化合物を含有する
多孔質インク受理層を有し、この多孔質インク受理層
に、色素が担持された記録物。4. A porous ink-receiving layer containing, on a substrate, at least one compound selected from the group consisting of thiourea derivatives, thiosemicarbazide derivatives and thiocarbohydrazide derivatives. A recorded matter in which a dye is carried on the ink receiving layer.
らなる層である請求項４記載の記録物。5. The recorded matter according to claim 4, wherein the porous ink receiving layer is a layer made of pseudoboehmite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6111279A JPH07314883A (en) | 1994-05-25 | 1994-05-25 | Recording sheet and recorded material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6111279A JPH07314883A (en) | 1994-05-25 | 1994-05-25 | Recording sheet and recorded material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07314883A true JPH07314883A (en) | 1995-12-05 |
Family
ID=14557205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6111279A Pending JPH07314883A (en) | 1994-05-25 | 1994-05-25 | Recording sheet and recorded material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07314883A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0825796A (en) * | 1994-07-21 | 1996-01-30 | Asahi Glass Co Ltd | Recording sheet and recorded matter |
| US6391440B1 (en) | 1999-02-23 | 2002-05-21 | Canon Kabushiki Kaisha | Recording medium and image formation and print employing the medium |
| WO2002045972A1 (en) * | 2000-12-04 | 2002-06-13 | Canon Finetech Inc. | Recording medium |
| DE10218503B4 (en) * | 2001-04-26 | 2006-01-26 | Mitsubishi Paper Mills Limited | Ink jet recording material and ink for ink jet recording |
| EP1655077A2 (en) | 2004-11-08 | 2006-05-10 | Konica Minolta Photo Imaging, Inc. | Spray coating apparatus and spray coating method |
| EP1964896A2 (en) | 2007-02-28 | 2008-09-03 | Konica Minolta Holdings, Inc. | Ink-jet ink and ink-jet recording method |
| US7601779B2 (en) | 2005-02-25 | 2009-10-13 | Canon Finetech Inc. | Polymer compound and recording medium |
| EP2135739A2 (en) | 2008-06-17 | 2009-12-23 | FUJIFILM Corporation | Relief printing plate precursor for laser engraving, relief printing plate, and process for producing relief printing plate |
| US7868121B2 (en) | 2004-04-30 | 2011-01-11 | Canon Finetech Inc. | Antioxidants and recording media by using the same |
-
1994
- 1994-05-25 JP JP6111279A patent/JPH07314883A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0825796A (en) * | 1994-07-21 | 1996-01-30 | Asahi Glass Co Ltd | Recording sheet and recorded matter |
| US6391440B1 (en) | 1999-02-23 | 2002-05-21 | Canon Kabushiki Kaisha | Recording medium and image formation and print employing the medium |
| WO2002045972A1 (en) * | 2000-12-04 | 2002-06-13 | Canon Finetech Inc. | Recording medium |
| DE10218503B4 (en) * | 2001-04-26 | 2006-01-26 | Mitsubishi Paper Mills Limited | Ink jet recording material and ink for ink jet recording |
| US7868121B2 (en) | 2004-04-30 | 2011-01-11 | Canon Finetech Inc. | Antioxidants and recording media by using the same |
| EP1655077A2 (en) | 2004-11-08 | 2006-05-10 | Konica Minolta Photo Imaging, Inc. | Spray coating apparatus and spray coating method |
| US7601779B2 (en) | 2005-02-25 | 2009-10-13 | Canon Finetech Inc. | Polymer compound and recording medium |
| EP1964896A2 (en) | 2007-02-28 | 2008-09-03 | Konica Minolta Holdings, Inc. | Ink-jet ink and ink-jet recording method |
| EP2135739A2 (en) | 2008-06-17 | 2009-12-23 | FUJIFILM Corporation | Relief printing plate precursor for laser engraving, relief printing plate, and process for producing relief printing plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0614771B1 (en) | Recording sheet having a colorant-absorbing layer | |
| EP0524626B1 (en) | Recording sheet for an ink jet printer | |
| EP0634286B1 (en) | Alumina sol coating fluid and recording sheet | |
| EP0705710B1 (en) | Coated paper and methods for its preparation | |
| EP0685345B1 (en) | Recording sheet and record | |
| JPH02276670A (en) | Recording sheet | |
| EP0634287A1 (en) | Recording sheet and process for its production | |
| JP3315515B2 (en) | Method for producing ink-jet recorded matter and recording sheet for ink-jet printer | |
| US6146770A (en) | Fast drying ink jet recording medium having a humidity barrier layer | |
| JPH07314883A (en) | Recording sheet and recorded material | |
| JP3435804B2 (en) | Inkjet recording sheet | |
| JPH07314881A (en) | Recording sheet and recorded material | |
| JPH0532414A (en) | Pseudo-boehmite and recording sheet | |
| JP3398479B2 (en) | Recording sheet and recorded matter | |
| JPH0768919A (en) | Recording sheet and recording article | |
| JP3236118B2 (en) | Record sheet | |
| JP2000238421A (en) | Recording sheet and recorded matter | |
| JP3238522B2 (en) | Recording sheet | |
| JP3470702B2 (en) | Recording sheet for inkjet printer | |
| JPH0768920A (en) | Recording sheet and recording article | |
| JPH06297831A (en) | Recording sheet for ink-jet printer | |
| JPH0524335A (en) | Recording sheet | |
| JPH04263983A (en) | Recording sheet and recorded matter | |
| JP2001039022A (en) | Recording sheet, recorded matter and its manufacture | |
| JPH0367684A (en) | Recorded material |