JP3004575B2 - Image receiving sheet for thermal transfer recording and method of manufacturing the same - Google Patents
Image receiving sheet for thermal transfer recording and method of manufacturing the sameInfo
- Publication number
- JP3004575B2 JP3004575B2 JP7284442A JP28444295A JP3004575B2 JP 3004575 B2 JP3004575 B2 JP 3004575B2 JP 7284442 A JP7284442 A JP 7284442A JP 28444295 A JP28444295 A JP 28444295A JP 3004575 B2 JP3004575 B2 JP 3004575B2
- Authority
- JP
- Japan
- Prior art keywords
- dye
- thermal transfer
- image
- layer
- transfer recording
- 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.)
- Expired - Fee Related
Links
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Laminated Bodies (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、熱昇華性染料を含
有する色材層が設けられた熱転写シートの背後面からサ
ーマルヘッドの加熱により該色材層中の熱昇華性染料が
昇華転写して高品質の記録画像を得ることが出来る熱転
写記録用受像シート及びその製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat transfer sheet provided with a color sublimable dye-containing sublimable dye, the sublimation of which sublimation dye in the sublimable dye is transferred by heating a thermal head. And an image receiving sheet for thermal transfer recording capable of obtaining a high quality recorded image.
【０００２】[0002]
【従来の技術】熱昇華性染料を含有した色材層を有する
熱転写シートと該熱転写シートの背後面からサーマルヘ
ッドの加熱により移行する昇華染料を受理する熱転写記
録用受像シートとを用いる昇華型熱転写記録方式は、階
調再現性に優れたカラー写真に近いカラーハードコピー
を提供するものとして注目されている。2. Description of the Related Art A sublimation type thermal transfer using a thermal transfer sheet having a color material layer containing a thermal sublimation dye and a thermal transfer recording image receiving sheet which receives the sublimation dye transferred from the back surface of the thermal transfer sheet by heating a thermal head. The recording method has attracted attention as providing a color hard copy close to a color photograph having excellent gradation reproducibility.
【０００３】従来の熱転写記録用受像シートとしては、
ベース紙の両面にポリエチレン樹脂或いはポリプロピレ
ン樹脂を溶融押出コーティング法により形成させた積層
シートの片面に染料受理層を形成させた熱転写記録用受
像シートがある。しかしながら、この熱転写記録用受像
シートに於ける樹脂層は、溶融押出コーティング法によ
る未延伸状態で形成された樹脂層であるため同種の樹脂
を用い延伸処理された樹脂層とは樹脂の結晶化に伴う熱
的特性及び伸度・強度等の物性が劣るものである。我々
の研究結果に於いて、未延伸状態の樹脂層は、画像記録
時の昇華染料の染着性が延伸処理された樹脂層より優れ
ており、染料受理層のみならず樹脂層も染料染着される
ため昇華染料の染着密度の低下に伴い画像濃度（反射濃
度）が低下し易い。また、画像記録時に熱転写シートの
背後面からサーマルヘッドの熱で樹脂層が熱変形を起こ
し染料受理層表面の表面平滑性が低下し、結果として画
像光沢度及び階調再現性が劣る等の問題点を有している
ことが解明出来、前述の樹脂よりも軟化点が高く、より
硬度の高い樹脂を用いなければ問題点を解消出来ないこ
とを発見した。従って、従来の熱転写記録用受像シート
は、記録画像の画像濃度・画像光沢度及び階調再現性が
劣る問題点を有している。[0003] Conventional image transfer sheets for thermal transfer recording include:
There is an image receiving sheet for thermal transfer recording in which a dye receiving layer is formed on one side of a laminated sheet in which a polyethylene resin or a polypropylene resin is formed on both sides of a base paper by a melt extrusion coating method. However, since the resin layer in this thermal transfer recording image-receiving sheet is a resin layer formed in an unstretched state by a melt extrusion coating method, the resin layer stretched using the same type of resin is used for crystallization of the resin. The resulting thermal properties and physical properties such as elongation and strength are inferior. According to our research results, the unstretched resin layer has better dyeability of the sublimation dye during image recording than the stretched resin layer, and not only the dye receiving layer but also the resin layer is dyed. easy image density (reflection density) decreased with the decrease of the dye Chakumitsu degree of sublimation dye to be. In addition, the resin layer undergoes thermal deformation due to the heat of the thermal head from the back side of the thermal transfer sheet during image recording, and the surface smoothness of the surface of the dye receiving layer is reduced, resulting in poor image glossiness and gradation reproducibility. It was found that the resin had a softening point higher than that of the above-mentioned resin, and that the problem could not be solved without using a resin having higher hardness. Therefore, the conventional image receiving sheet for thermal transfer recording has a problem that the image density, the image glossiness, and the gradation reproducibility of the recorded image are inferior.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、前述の記録
画像の階調再現性、画像濃度特性及び画像光沢度等の問
題点を解消し、熱転写記録用受像シートの表面平滑性に
優れると共に記録画像が常に安定した色彩・色調値を示
す安価な熱転写記録用受像シート及びその製造方法を提
供することを目的とするものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems such as the tone reproducibility of a recorded image, image density characteristics, and image glossiness, and provides an image receiving sheet for thermal transfer recording with excellent surface smoothness. An object of the present invention is to provide an inexpensive thermal transfer recording image-receiving sheet in which a recorded image always shows stable color and tone values, and a method for producing the same.
【０００５】[0005]
【課題を解決するための手段】本発明者等は、前述の問
題点を解決すべく鋭意検討した結果、ベース紙上に、加
熱により熱転写シートから移行する昇華染料を受理する
染料受理層を有する熱転写記録用受像シートであって、
該ベース紙と該染料受理層との間には軟化点が４５〜７
０℃であり、且つＪＩＳ−Ｐ−８１３２号規格による伸
度が３．０〜３０．０％のポリエステル樹脂から成る、
軟化点が４５〜７０℃であり且つＪＩＳ−Ｐ−８１３２
号規格による伸度が３．０〜３０．０％の延伸処理をし
た成膜フィルムをドライラミネート法により貼合形成さ
れたクッション層であることを特徴とするものである。
また、該クッション層上の染料受理層は、乾燥塗膜の形
成厚みが０．５〜５．０μｍであり、且つ染料受理層表
面の平滑度が高平滑度計で１００００秒以上であること
を特徴とすることにより、前述の従来技術の問題点が解
消されることを見い出し本発明に至った。Means for Solving the Problems As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that a thermal transfer having a dye receiving layer for receiving a sublimation dye transferred from a thermal transfer sheet by heating on a base paper. An image receiving sheet for recording,
The softening point is between 45 and 7 between the base paper and the dye receiving layer.
It is a polyester resin having an elongation of 3.0 to 30.0% at 0 ° C. and JIS-P-8132 standard .
Softening point is 45-70 ° C and JIS-P-8132
Stretching with an elongation of 3.0 to 30.0%
A cushion layer formed by laminating the formed film by a dry lamination method.
The dye-receiving layer on the cushion layer has a dry coating film thickness of 0.5 to 5.0 μm and a smoothness of the dye-receiving layer surface of 10,000 seconds or more measured by a high smoothness meter. The present invention has been found to solve the above-mentioned problems of the prior art by adopting the feature, and has reached the present invention.
【０００６】[0006]
【発明の実施の形態】以下、図面を参照しながら本発明
を更に詳細に説明する。図１は、本発明の熱転写記録用
受像シートの断面構成図であって、熱転写記録用受像シ
ート５はベース紙１の上に接着剤層２及びクッション層
３及び染料受理層４を有している。本発明の熱転写記録
用受像シートのベース紙１に使用される原紙としては、
コート紙、アート紙、合成紙、キャスト紙等の公知のも
のを使用可能であり、50〜200ｇ／m2の重量のものが好
ましい。本発明に於いて、ベース紙１上に形成される接
着剤層２は、ベース紙１とクッション層３との接着性を
成すために形成した塗工層であり、一般的にはポリウレ
タン系若しくはアクリル系の２液型接着剤等の公知のも
のが使用可能であり、３〜７ｇ／m2の形成厚みで良い。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a cross-sectional view of the thermal transfer recording image receiving sheet of the present invention. The thermal transfer recording image receiving sheet 5 has an adhesive layer 2, a cushion layer 3, and a dye receiving layer 4 on a base paper 1. I have. The base paper used for the base paper 1 of the image receiving sheet for thermal transfer recording of the present invention includes:
Known papers such as coated paper, art paper, synthetic paper, cast paper and the like can be used, and those having a weight of 50 to 200 g / m 2 are preferable. In the present invention, the adhesive layer 2 formed on the base paper 1 is a coating layer formed to provide the adhesiveness between the base paper 1 and the cushion layer 3, and is generally a polyurethane-based or A known material such as an acrylic two-component adhesive can be used, and a formed thickness of 3 to 7 g / m 2 may be used.
【０００７】本発明に於いて、ベース紙１上に形成され
るクッション層３は軟化点が４５〜７０℃であり、且つ
ＪＩＳ−Ｐ−８１３２号規格による伸度が３．０〜３
０．０％のポリエステル樹脂から成る延伸処理をした成
膜フィルムをドライラミネート法により貼合形成した樹
脂層である。クッション層の樹脂厚みは、１０〜７０μ
ｍの範囲のものをベース紙上に貼合形成させることが好
ましい。特に好ましくは非染料染着性、適度なクッショ
ン性及び熱的特性等のクッション層性能を満足しベース
紙との貼合作業性及びベース紙上に貼合形成した積層体
にカール発生の無い樹脂厚みの１５〜３０μｍが最適で
ある。また、樹脂の形成厚みをこの範囲に抑さえること
によりカール防止を目的とした裏面処理を省略出来、低
コスト化を図れることも本発明の特徴の一つである。In the present invention, the cushion layer 3 formed on the base paper 1 has a softening point of 45 to 70 ° C. and an elongation of 3.0 to 3 according to JIS-P-8132.
This is a resin layer formed by laminating a stretched film formed of a 0.0% polyester resin by a dry lamination method. The resin thickness of the cushion layer is 10-70μ
It is preferable to bond and form a material having a range of m on the base paper. Particularly preferred is a resin thickness that satisfies the cushion layer performance such as non-dye-dyeing property, moderate cushioning property and thermal property, that is, the workability of laminating the base paper and that the curl does not occur in the laminated body formed on the base paper. Of 15 to 30 μm is optimal. Another feature of the present invention is that by suppressing the thickness of the formed resin within this range, the back surface treatment for preventing curling can be omitted, and the cost can be reduced.
【０００８】本発明に於いて、軟化点が45℃未満であ
り、且つ伸度が30.0％超のものでは、画像記録時のサー
マルヘッドからの加熱により樹脂層が熱変形を起こし、
その影響で染料受理層の表面平滑性が低下するため画像
光沢度及び画像濃度（反射濃度）が劣る記録画像となる
問題点がある。また、昇華染料の染料染着性に優れるた
め染料受理層のみならずクッション層自身も染料染着さ
れることから昇華染料の染着密度低下に伴い画像濃度が
低い記録画像となる等の問題点がある。逆に軟化点が70
℃超であり、且つ伸度が3.0％未満のものは、樹脂層の
クッション性（柔軟性）が低下し画像記録時の熱転写シ
ートと熱転写記録用受像シートとの密着性が悪く階調再
現性の劣る記録画像となる問題点があり、ベース紙と積
層された積層体の収縮歪みに伴うカール発生が大きく好
ましくない等の問題点を有している。In the present invention, when the softening point is less than 45 ° C. and the elongation is more than 30.0%, the resin layer undergoes thermal deformation due to heating from a thermal head during image recording,
As a result, the surface smoothness of the dye-receiving layer is reduced, so that there is a problem that the recorded image is inferior in image glossiness and image density (reflection density). In addition, since the dye dyeing properties of the sublimation dye are excellent, not only the dye receiving layer but also the cushion layer itself is dye-dyed, resulting in a recording image having a low image density due to a decrease in the dyeing density of the sublimation dye. There is. Conversely, softening point is 70
When the temperature exceeds ℃ and the elongation is less than 3.0%, the cushioning property (flexibility) of the resin layer is reduced, and the adhesion between the thermal transfer sheet and the image receiving sheet for thermal transfer at the time of image recording is poor, and the gradation reproducibility is low. In addition, there is a problem that the printed image is inferior to the above, and there is a problem that curl generation due to shrinkage distortion of the laminate laminated with the base paper is large, which is not preferable.
【０００９】尚、軟化点は、Thermomechanical Analyze
r，商品名ＴＭＡ-2940（Dupont社製）にて測定した軟化
温度で表示する。また、クッション層には炭酸カルシウ
ム、酸化チタン、シリカ等の無機顔料、蛍光増白剤、酸
化防止剤を添加することは公知であり、本発明に於いて
も、クッション層にこれ等の添加剤を添加することは可
能である。本発明に於いて、クッション層上に形成され
る染料受理層４は、熱転写シートからサーマルヘッドの
加熱により移行して来る昇華染料を受理する働きを成す
ものである。そのため、本発明の染料受理層には、染料
染着性に優れる樹脂が含まれている。染料染着性に優れ
る樹脂としては、ポリエステル、塩化ビニル／酢酸ビニ
ル／無水マレイン酸の三元共重合体樹脂を用いることが
好ましく、その他ポリ酢酸ビニル、スチレンアクリレー
ト、エチレンビニルアセテート樹脂等の様な昇華染料を
染着し得る樹脂を用いることが出来る。[0009] The softening point is determined by Thermomechanical Analyze.
r, It is indicated by the softening temperature measured by TMA-2940 (trade name, manufactured by Dupont). Further, it is known to add inorganic pigments such as calcium carbonate, titanium oxide and silica, a fluorescent whitening agent and an antioxidant to the cushion layer. In the present invention, these additives are also added to the cushion layer. It is possible to add In the present invention, the dye receiving layer 4 formed on the cushion layer functions to receive the sublimation dye transferred from the thermal transfer sheet by heating the thermal head. Therefore, the dye-receiving layer of the present invention contains a resin having excellent dye-dyeing properties. As the resin having excellent dye-dyeing properties, it is preferable to use a terpolymer resin of polyester, vinyl chloride / vinyl acetate / maleic anhydride, and other resins such as polyvinyl acetate, styrene acrylate and ethylene vinyl acetate resin. A resin capable of dyeing a sublimation dye can be used.
【００１０】本発明に於いて、染料受理層に使用される
その他の成分として、染料受理層の白色度及び画像のコ
ントラストを向上させる目的で炭酸カルシウム、酸化チ
タン、シリカなどの無機顔料及びポリスチレン、ポリエ
チレン、尿素／ホルマリン樹脂、メチルセルロースなど
の有機顔料を用いることも可能であり、画像記録時の熱
転写シートの背後面からサーマルヘッドの加熱により昇
華染料が移行し画像記録を行う際の熱転写記録用受像シ
ートの染料受理層と熱転写シートの色材層面との融着を
防止するために、非反応型のメチルスチリル変成シリコ
ーンオイル或いはアクリル／シリコーンのグラフトポリ
マー、ポリウレタン／シリコーンのグラフトポリマー、
自己架橋型シリコーン変成アクリル樹脂、フッソパウダ
ー、シリコーンパウダー等の各種添加剤を添加すること
も可能である。In the present invention, other components used in the dye-receiving layer include inorganic pigments such as calcium carbonate, titanium oxide and silica, and polystyrene for the purpose of improving the whiteness of the dye-receiving layer and the contrast of the image. It is also possible to use organic pigments such as polyethylene, urea / formalin resin, and methylcellulose. Sublimation dye is transferred by heating the thermal head from the back side of the thermal transfer sheet during image recording, and thermal transfer recording image reception when image recording is performed Non-reactive methylstyryl-modified silicone oil or acrylic / silicone graft polymer, polyurethane / silicone graft polymer, to prevent fusion between the dye receiving layer of the sheet and the colorant layer surface of the thermal transfer sheet.
It is also possible to add various additives such as self-crosslinking type silicone modified acrylic resin, fluorine powder and silicone powder.
【００１１】本発明の染料受理層は、染料受理層面の表
面平滑性に優れると共に記録画像の階調再現性、画像濃
度特性及び画像光沢度が高く、且つ安定した色彩・色調
を示す様にするためにクッション層上に染料受理層を乾
燥塗膜の形成厚みが0.5〜5.0μm形成したものであり、
且つ染料受理層表面の平滑度が王研式高平滑度計で1000
0秒以上となる様に形成させたものが好ましい。特に好
ましくは乾燥塗膜の形成厚みが1.0〜3.0μmである。乾
燥塗膜の形成厚みが0.5μm未満では昇華染料の染料受理
層への染料染着が不充分で画像濃度が低く階調再現性も
劣り好ましくない。また、乾燥塗膜の形成厚みが5.0μm
超では昇華染料の染料受理層への染着密度低下に伴う画
像濃度及び画像光沢度の低下となり好ましくない。次
に、染料受理層表面の平滑度が10000秒未満のもので
は、画像記録時の熱転写シートと熱転写記録用受像シー
トとの密着が悪く画像濃度低下及びハイライト部に転写
抜けが発生し階調再現性の劣る記録画像となり好ましく
ない。The dye-receiving layer of the present invention is excellent in surface smoothness of the surface of the dye-receiving layer, high in tone reproducibility of a recorded image, high in image density characteristics, and high in image gloss, and exhibits stable color and color tone. In order to form a dye-receiving layer on the cushion layer to form a dry coating film thickness of 0.5 to 5.0 μm,
And the surface smoothness of the dye receiving layer is 1000 by Oken high smoothness meter.
Those formed so as to be 0 seconds or longer are preferable. Particularly preferably, the thickness of the dried coating film is 1.0 to 3.0 μm. If the thickness of the dried coating film is less than 0.5 μm, the dye dyeing of the sublimation dye on the dye receiving layer is insufficient, resulting in low image density and poor gradation reproducibility. Also, the thickness of the dried coating film is 5.0μm
If the amount is too large, the density of the image and the glossiness of the image are undesirably reduced due to the decrease in the density of the sublimation dye on the dye-receiving layer. Next, when the smoothness of the surface of the dye receiving layer is less than 10,000 seconds, the adhesion between the thermal transfer sheet and the image receiving sheet for thermal transfer recording at the time of image recording is poor, image density is reduced, and transfer loss occurs in a highlight portion, causing a gradation. A recorded image with poor reproducibility is not preferable.
【００１２】尚、本発明に於いて、クッション層３上の
染料受理層４の塗料を形成させる方法としては、マイヤ
ーバーコーティング、グラビアコーティング、エアーナ
イフコーティング、ロールコーティング等のコーティン
グ方法により塗布、乾燥させて形成することが出来る。In the present invention, as a method of forming a coating of the dye receiving layer 4 on the cushion layer 3, coating and drying are performed by a coating method such as Meyer bar coating, gravure coating, air knife coating, and roll coating. Can be formed.
【００１３】[0013]
【実施例】次に、実施例によって本発明を更に詳細に説
明するが、具体例によって限定されるものではない。
尚、実施例中の部は、固形分重量比率を示す。Next, the present invention will be described in more detail with reference to Examples, but it should not be construed that the invention is limited thereto.
In addition, the part in an Example shows a solid content weight ratio.
【００１４】実施例１〜４及び比較例１〜６ ガラス転移点70℃のポリエステル樹脂（三井デュポンポ
リケミカル(株)製）を溶融温度300℃でキャスト法によ
りラミネート後、縦横の延伸倍率を調整し樹脂厚みが25
μmで軟化点と伸度の異なる３種類のクッション層用フ
ィルムを作成した。 実施例１ 軟化点が70℃で伸度が3.0％のフィルム 実施例２ 軟化点が45℃で伸度が30.0％のフィルム 比較例１ 軟化点が72℃で伸度が2.0％のフィルム 比較例２ 軟化点が40℃で伸度が40.0％のフィルム 次いで、ドライラミネーターによりベース紙としてコー
ト紙（日本製紙(株)製、商品名ＮＰｉスーパーアート 1
27.9ｇ／m2）の一方の面にポリウレタン系の２液型の接
着剤を乾燥厚みが５ｇ／m2となる様に接着剤を形成し、
接着剤面とクッション層フィルムとを重ね合わせラミネ
ートを行い４種類の積層体を作成した。Examples 1 to 4 and Comparative Examples 1 to 6 A polyester resin having a glass transition point of 70 ° C. (manufactured by DuPont-Mitsui Polychemicals Co., Ltd.) was laminated at a melting temperature of 300 ° C. by a casting method, and the longitudinal and lateral stretching ratios were adjusted. 25 resin thickness
Three types of cushion layer films having different softening points and elongations at μm were prepared. Example 1 Film having a softening point of 70 ° C and elongation of 3.0% Example 2 Film having a softening point of 45 ° C and elongation of 30.0% Comparative Example 1 Film having a softening point of 72 ° C and elongation of 2.0% Comparative Example 2 Film having a softening point of 40 ° C. and an elongation of 40.0%. Then, a coated paper (manufactured by Nippon Paper Co., Ltd., trade name: NPi Super Art 1) was used as a base paper by a dry laminator.
27.9 g / m 2 ) A polyurethane two-component adhesive is formed on one surface of the adhesive so that the dry thickness is 5 g / m 2 .
The adhesive surface and the cushion layer film were overlapped and laminated to produce four types of laminates.
【００１５】次いで、得られた積層体のクッション層上
に下記の組成から成る染料受理層用塗料を塗布乾燥して
乾燥塗膜の形成厚みが0.5μmとなる様に染料受理層を形
成し熱転写記録用受像シートを得た。 塗料組成 成分 ポリエステル樹脂（ユニチカ(株)製、商品名エリーテルＵＥ3320） 10部 シリコーン樹脂（信越化学(株)製、商品名ＫＦ-410） 1部 有機顔料（日本触媒化学(株)製、商品名エポスターＳ） 2部 トルエン 40部 酢酸エチル 30部 メチルエチルケトン 17部Next, a coating for a dye-receiving layer having the following composition is applied on the cushion layer of the obtained laminate and dried to form a dye-receiving layer so that the thickness of the dried coating film becomes 0.5 μm. An image receiving sheet for recording was obtained. Coating composition Ingredients Polyester resin (product name: Eritel UE3320, manufactured by Unitika Ltd.) 10 parts Silicone resin (product name: KF-410 manufactured by Shin-Etsu Chemical Co., Ltd.) 1 part Organic pigment (product name, manufactured by Nippon Shokubai Chemical Co., Ltd.) Eposter S) 2 parts Toluene 40 parts Ethyl acetate 30 parts Methyl ethyl ketone 17 parts
【００１６】上記の染料受理層の乾燥塗膜の形成厚みを
0.4μm、5.0μm、5.5μmとした以外は実施例１と同様に
して染料受理層を形成したものを夫々比較例３及び実施
例３及び比較例４とした。また、クッション層形成用樹
脂としてビカット軟化点150℃のポリプロピレン樹脂
（三井石油化学工業(株)製、商品名ハイポールＦ309）
を用い溶融温度を270℃として樹脂厚み25μmの軟化点が
44℃で伸度が25.0％の成膜フィルムとした以外は実施例
１と同様にして熱転写記録用受像シートを作成したもの
を比較例５とした。The thickness of the dried coating film of the dye receiving layer is determined by
Except for 0.4 μm, 5.0 μm, and 5.5 μm, the dye-receiving layer was formed in the same manner as in Example 1 to obtain Comparative Example 3, Example 3, and Comparative Example 4, respectively. In addition, a polypropylene resin having a Vicat softening point of 150 ° C. (trade name: Hypol F309, manufactured by Mitsui Petrochemical Industries, Ltd.) as a resin for forming a cushion layer.
With a melting temperature of 270 ° C, the softening point of the resin thickness 25μm
Comparative Example 5 was prepared in the same manner as in Example 1 except that a film having an elongation of 25.0% was formed at 44 ° C.
【００１７】また、クッション層形成用樹脂として離型
フィルム上にガラス転移点90℃のポリエステル樹脂（東
洋紡(株)製、商品名バイロン3690）を乾燥塗膜の形成厚
みが25μmで軟化点が73℃で伸度が8.0％の成膜フィルム
を形成した。その樹脂層上に、ドライラミネーターによ
りベース紙としてコート紙（日本製紙(株)製、商品名Ｎ
Ｐｉスーパーアート 127.9ｇ／m2）の一方の面にポリウ
レタン系の２液型の接着剤を乾燥厚みが５ｇ／m2となる
様に接着剤層を形成し、接着剤面とクッション層フィル
ムとを重ね合わせラミネートを行い、離型フィルムを剥
離除去し積層体を作成した。更に、得られた積層体のク
ッション層上に実施例１で使用した染料受理層用塗料を
塗布乾燥して乾燥塗膜の形成厚みが0.5μmとなる様に染
料受理層を形成し熱転写記録用受像シートを作成したも
のを比較例６とした。また、下記に記載の如く、実施例
１の染料受理層用塗料の中に無機顔料を２部配合した以
外は実施例１と同様にして熱転写記録用受像シートを作
成し実施例４とした。As a resin for forming a cushion layer, a polyester resin having a glass transition point of 90 ° C. (manufactured by Toyobo Co., Ltd., trade name: Byron 3690) is formed on a release film to form a dry coating film having a thickness of 25 μm and a softening point of 73. A film having an elongation of 8.0% was formed at ℃. On the resin layer, a coated paper (manufactured by Nippon Paper Industries, trade name N
On one surface of Pi Super Art 127.9 g / m 2 ), an adhesive layer of a polyurethane-based two-component adhesive is formed to a dry thickness of 5 g / m 2, and the adhesive surface, the cushion layer film and Were laminated and the release film was peeled off to form a laminate. Further, the dye receiving layer paint used in Example 1 was applied on the cushion layer of the obtained laminate and dried to form a dye receiving layer so that the thickness of the dried coating film was 0.5 μm. An image receiving sheet was prepared as Comparative Example 6. Further, as described below, a thermal transfer recording image-receiving sheet was prepared in the same manner as in Example 1 except that 2 parts of an inorganic pigment was blended in the coating material for the dye-receiving layer in Example 1.
【００１８】実施例４ 塗料組成 成分 ポリエステル樹脂（ユニチカ(株)製、商品名エリーテルＵＥ3320） 10部 酸化チタン（古河機械金属(株)製、粒子径0.3μm） 2部 シリコーン樹脂（信越化学(株)製、商品名ＫＦ-410） 1部 有機顔料（日本触媒化学(株)製、商品名エポスターＳ） 2部 トルエン 40部 酢酸エチル 30部 メチルエチルケトン 17部Example 4 Coating composition Ingredients Polyester resin (product name: Elitel UE3320, manufactured by Unitika Ltd.) 10 parts Titanium oxide (produced by Furukawa Machine Metal Co., Ltd., particle size: 0.3 μm) 2 parts Silicone resin (Shin-Etsu Chemical Co., Ltd.) ), Trade name KF-410) 1 part Organic pigment (Nippon Shokubai Chemical Co., Ltd., trade name Eposter S) 2 parts Toluene 40 parts Ethyl acetate 30 parts Methyl ethyl ketone 17 parts
【００１９】次いで、各熱転写記録用受像シートに就い
て、下記の方法により積層体及び各熱転写記録用受像シ
ートのカール状態、光沢度、平滑度、画像濃度、階調再
現性、保存性、融着発生の有無等の評価を行った。Next, the curl state, glossiness, smoothness, image density, gradation reproducibility, storability, and fusibility of the laminate and each thermal transfer recording image-receiving sheet are determined for each thermal transfer recording image-receiving sheet by the following method. The evaluation of the occurrence of wearing was performed.
【００２０】（１）カール ベース紙とクッション層用フィルムをドライラミネート
法により貼合形成した積層体をＡ４サイズにサンプリン
グしサンプルの４角のカール高さを測定し、その最大高
さ(mm)を表記した。目標値は３mm以下である。 （２）光沢度 記録画像の光沢度は、(株)堀場製作所製の商品名グロス
チェッカーＩＧ−310を使用し、照射角度60度に於ける
マゼンタ色の画像光沢度を測定した。 （３）平滑度 染料受理層表面の平滑性は、王研式高平滑度計にて測定
した。 （４）画像濃度 マクベス(株)製のマクベスＲＤ−918型反射濃度計を使
用しマゼンタ色の反射濃度を測定した。(1) Curl A laminate obtained by laminating a base paper and a film for a cushion layer by a dry lamination method is sampled in A4 size, and the curl heights of the four corners of the sample are measured. The maximum height (mm) Was described. The target value is 3 mm or less. (2) Gloss The gloss of the recorded image was measured using a gloss checker IG-310 (trade name, manufactured by Horiba, Ltd.) and measuring the magenta image gloss at an irradiation angle of 60 degrees. (3) Smoothness The smoothness of the surface of the dye-receiving layer was measured by an Oken type high smoothness meter. (4) Image Density A magenta reflection density was measured using a Macbeth RD-918 reflection densitometer manufactured by Macbeth Corporation.
【００２１】（５）階調再現性 記録画像を目視で確認し転写抜けの発生の無い部分をＤ
ＯＴ％で表記した。目標値は10％ＤＯＴ再現である。 （６）記録画像の保存性 記録画像物を20℃、65％ＲＨの環境下に30日間保存し
た。保存前後に於けるマゼンタ色の画像濃度差を表記し
た。画像濃度差目標値は0.10以下である。（画像濃度測
定：マクベスＲＤ918型反射濃度計） （７）熱転写記録時の融着発生の有無 画像記録の際の熱転写シートの色材層面と各熱転写記録
用受像シートの染料受理層面との融着に就いては、剥離
音の発生の有無により評価した。各熱転写記録用受像シ
ートに就いての性能評価結果を表１及び表２に示す。(5) Gradation Reproducibility The recorded image is visually checked, and a portion where no transfer omission occurs is represented by D.
Expressed as OT%. The target value is 10% DOT reproduction. (6) Storage Property of Recorded Image The recorded image was stored in an environment of 20 ° C. and 65% RH for 30 days. The difference in image density of magenta before and after storage is shown. The image density difference target value is 0.10 or less. (Image density measurement: Macbeth RD918 reflection densitometer) (7) Presence or absence of fusion during thermal transfer recording Fusion of the color material layer surface of the thermal transfer sheet and the dye receiving layer surface of each thermal transfer recording image receiving sheet during image recording Was evaluated based on the presence or absence of peeling noise. Tables 1 and 2 show the results of the performance evaluation of each thermal transfer recording image-receiving sheet.
【００２２】[0022]
【表１】 [Table 1]
【００２３】[0023]
【表２】 [Table 2]
【００２４】＊尚、表中の光沢度、画像濃度、平滑度は
表記した数値が大きい値程良好な評価結果を示し、階調
再現性、保存性及びカール高さは表記した数値が低い値
程良好な評価結果を示す。 ＊また、○は目標範囲内であり良好な評価結果を示し、
△及び×は１或いは複数以上の性能項目に於ける性能が
目標未達であることを示す。* In the table, gloss values, image densities and smoothness values indicate better evaluation results as the indicated numerical values are larger, and gradation reproducibility, storability and curl height indicate lower values. A better evaluation result is shown. * Also, ○ is within the target range and indicates a good evaluation result.
Δ and × indicate that the performance in one or more performance items has not reached the target.
【００２５】表２から明らかな様に、クッション層とし
て軟化点が４５〜７０℃で、且つ伸度が３．０〜３０．
０％のポリエステル樹脂から成る延伸処理した成膜フィ
ルムをベース紙に積層した積層体は、本発明の主目的で
ある熱転写記録用受像シートの表面平滑性に優れると共
に記録画像の階調再現性、画像濃度特性及び画像光沢度
に優れた色彩・色調の安定した熱転写記録用受像シート
を得ることが出来た。また、比較例では、何れのもので
も記録画像の画像光沢度、画像濃度或いは階調再現性及
びカールが大きい等の何れか、または複数の性能が本発
明の目標範囲外の熱転写記録用受像シートであった。As is clear from Table 2, the cushion layer has a softening point of 45 to 70 ° C. and an elongation of 3.0 to 30.
A laminate obtained by laminating a stretched film formed of 0% polyester resin on a base paper is excellent in the surface smoothness of a thermal transfer recording image-receiving sheet, which is a main object of the present invention, and the gradation reproducibility of a recorded image is improved. An image-receiving sheet for thermal transfer recording with excellent color density and color tone excellent in image density characteristics and image glossiness was obtained. Further, in the comparative example, any one or more of the image glossiness, image density or gradation reproducibility and curl of the recorded image, or a plurality of performances out of the target range of the present invention were obtained. Met.
【００２６】[0026]
【発明の効果】本発明の熱転写記録用受像シートは、ベ
ース紙上に軟化点と伸度が限定されたポリエステル樹脂
から成るクッション層（成膜フィルム）をドライラミネ
ート法で貼合形成させ積層体を作成し、そのクッション
層上に染料受理層を塗布形成することにより作成するこ
とが出来る。本発明による熱転写記録用受像シートは、
染料受理層の表面平滑性に優れることは勿論のことであ
るが従来品の問題点であった記録画像の階調再現性、画
像濃度特性及び画像光沢度等の問題点を解消し、記録画
像が常に安定した色彩・色調値を示す等優れた特徴を有
するものである。また、ベース紙にクッション層を30μ
m以下に形成するものでは、その積層体のカールは殆ど
発生しないため従来品の如く両面に樹脂加工を行う必要
が無く低コスト化を図れることも特徴である。The image receiving sheet for thermal transfer recording of the present invention is formed by laminating a cushion layer (film-forming film) made of polyester resin having a limited softening point and elongation on a base paper by a dry lamination method. It can be prepared by forming and applying a dye-receiving layer on the cushion layer. The image receiving sheet for thermal transfer recording according to the present invention,
The dye receiving layer not only has excellent surface smoothness, but also solves the problems of the conventional product, such as the problem of gradation reproducibility of a recorded image, image density characteristics, and image glossiness. Have excellent characteristics such as constantly showing stable color / tone values. In addition, cushion layer 30μ on base paper
When the laminate is formed to a thickness of m or less, the laminate is hardly curled, so that it is not necessary to perform resin processing on both surfaces as in the conventional product, and the cost can be reduced.
【図１】熱転写記録用受像シートの断面構成図である。FIG. 1 is a cross-sectional configuration view of an image receiving sheet for thermal transfer recording.
１ ベース紙 ２ 接着剤層 ３ クッション層 ４ 染料受理層 ５ 熱転写記録用受像シート DESCRIPTION OF SYMBOLS 1 Base paper 2 Adhesive layer 3 Cushion layer 4 Dye receiving layer 5 Image receiving sheet for thermal transfer recording
Claims (2)
から移行する昇華染料を受理する染料受理層を有する熱
転写記録用受像シートであって、該ベース紙と乾燥塗膜
の形成厚みが０．５〜５．０μｍであり且つ染料受理層
表面の平滑度が王研式高平滑度計で１００００秒以上で
ある該染料受理層との間に、ポリエステル樹脂から成
る、軟化点が４５〜７０℃であり、且つＪＩＳ−Ｐ−８
１３２号規格による伸度が３．０〜３０．０％の延伸処
理をした成膜フィルムを貼合形成されたクッション層を
有する熱転写記録用受像シート。1. A thermal transfer recording image receiving sheet having a dye receiving layer for receiving a sublimation dye transferred from a thermal transfer sheet by heating on a base paper, wherein the thickness of the base paper and the dry coating film is 0.5 to 0.5. A polyester resin is interposed between the dye-receiving layer and the dye-receiving layer, which has a smoothness of 5.0 μm and a surface smoothness of 10,000 seconds or more measured by Oken high smoothness meter.
Having a softening point of 45 to 70 ° C and JIS-P-8
Stretching process with elongation of 3.0 to 30.0% according to No. 132 standard
Transfer recording image receiving sheet having a cushioning layer which is laminated form a deposition film having a sense.
から移行する昇華染料を受理する染料受理層を有する熱
転写記録用受像シートの製造方法であって、該ベース紙
と該染料受理層との間にポリエステル樹脂から成る延伸
処理をした成膜フィルムをドライラミネート法によって
貼合形成することを特徴とする請求項１に記載の熱転写
記録用受像シートの製造方法。2. A method for producing a thermal transfer recording image receiving sheet having a dye receiving layer for receiving a sublimation dye migrating from a thermal transfer sheet by heating on a base paper, comprising: Stretching made of polyester resin
The method for producing an image receiving sheet for thermal transfer recording according to claim 1, wherein the processed film is laminated by a dry lamination method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7284442A JP3004575B2 (en) | 1995-10-06 | 1995-10-06 | Image receiving sheet for thermal transfer recording and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7284442A JP3004575B2 (en) | 1995-10-06 | 1995-10-06 | Image receiving sheet for thermal transfer recording and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0999653A JPH0999653A (en) | 1997-04-15 |
| JP3004575B2 true JP3004575B2 (en) | 2000-01-31 |
Family
ID=17678604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7284442A Expired - Fee Related JP3004575B2 (en) | 1995-10-06 | 1995-10-06 | Image receiving sheet for thermal transfer recording and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3004575B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2347891A2 (en) | 2010-01-25 | 2011-07-27 | Fujifilm Corporation | Printing sheet and method for producing the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3038863B1 (en) * | 2015-07-17 | 2020-01-31 | Bostik Sa | MULTILAYER FILM FOR RECLOSABLE PET PACKAGING |
-
1995
- 1995-10-06 JP JP7284442A patent/JP3004575B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2347891A2 (en) | 2010-01-25 | 2011-07-27 | Fujifilm Corporation | Printing sheet and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0999653A (en) | 1997-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5488025A (en) | Dye-receiving element containing elastomeric beads in overcoat layer for thermal dye transfer | |
| US6232268B1 (en) | Thermal transfer image-receiving sheet | |
| JP2000127303A (en) | Substrate and thermal transfer image receiving body | |
| JPH0516539A (en) | Thermal dye transfer image receiving sheet | |
| JP2016182686A (en) | Thermal transfer image receiving sheet and method for producing thermal transfer image receiving sheet | |
| JP3004575B2 (en) | Image receiving sheet for thermal transfer recording and method of manufacturing the same | |
| JP2835111B2 (en) | Thermal transfer image receiving sheet | |
| JP2994244B2 (en) | Thermal transfer recording material | |
| JP2807190B2 (en) | Manufacturing method of thermal transfer type recording material | |
| JP3182843B2 (en) | Dye thermal transfer image receiving sheet | |
| JP2015024576A (en) | Thermal transfer image-receiving sheet | |
| JPH0999652A (en) | Thermal transfer recording-image receiving sheet and its manufacture | |
| JP3089778B2 (en) | Method for producing dye thermal transfer image-receiving sheet | |
| JP2855925B2 (en) | Thermal image print sheet | |
| JP2925554B2 (en) | Thermal transfer record for print proofreading with surface post-processing and surface post-processing method | |
| JPH05254263A (en) | Dye thermal transfer image receiving sheet | |
| JPH07276827A (en) | Thermal transfer image receiving sheet | |
| JPH02120087A (en) | Sublimation transfer image-receiving paper | |
| JP2986722B2 (en) | Thermal transfer sheet | |
| JP2991936B2 (en) | Thermal transfer recording material | |
| JP4307643B2 (en) | Support and thermal transfer image receptor | |
| JPH09142044A (en) | Material for heat transfer type recording | |
| JP3068872B2 (en) | Thermal image printing sheet | |
| JPH10329434A (en) | Thermal transfer photographic sheet | |
| JPH07309073A (en) | Thermal transfer image receiving sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |