JP2003154764A - Thermal transfer image receiving sheet and photoprinted matter - Google Patents

Thermal transfer image receiving sheet and photoprinted matter

Info

Publication number
JP2003154764A
JP2003154764A JP2002324704A JP2002324704A JP2003154764A JP 2003154764 A JP2003154764 A JP 2003154764A JP 2002324704 A JP2002324704 A JP 2002324704A JP 2002324704 A JP2002324704 A JP 2002324704A JP 2003154764 A JP2003154764 A JP 2003154764A
Authority
JP
Japan
Prior art keywords
thermal transfer
sheet
transfer image
receiving sheet
dye
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2002324704A
Other languages
Japanese (ja)
Other versions
JP3656846B2 (en
Inventor
Mikiko Kudo
美紀子 工藤
Katsuyuki Oshima
克之 大嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP2002324704A priority Critical patent/JP3656846B2/en
Publication of JP2003154764A publication Critical patent/JP2003154764A/en
Application granted granted Critical
Publication of JP3656846B2 publication Critical patent/JP3656846B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Laminated Bodies (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a thermal transfer image receiving sheet, the various durabilities, especially light resistance, of thermal transfer images of which can be kept over a long period of time, and its photoprinted matter. SOLUTION: In the thermal transfer image receiving sheet used in combination with a thermal transfer sheet, some layer of the thermal transfer image receiving sheet includes a cerium-based ultraviolet absorber. Further, in the photoprinted matter having a dye image, the dye image is formed through a sublimation transfer system on the thermal transfer image receiving sheet. Thus, the volatility and extractability, which are the defects of a conventional benzotriazol-based and benzophenon-based ultraviolet absorber, is remarkably improved and the thermal transfer image receiving sheet, the ultraviolet- absorbing effect of which does not reduce with time, can be obtained. Furthermore, the photoprinted matter excellent in durability, especially light resistance over a long period of time, can be obtained.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、熱転写受像シート
及び印画物に関する。更に詳しくは、染料画像に優れた
耐光性、耐候性、耐摩擦性、耐薬品性及び耐溶剤性等の
耐久性を与えることができる熱転写受像シート及び優れ
た耐久性が付与された印画物に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal transfer image receiving sheet and printed matter. More specifically, the present invention relates to a thermal transfer image-receiving sheet capable of imparting excellent durability such as light resistance, weather resistance, abrasion resistance, chemical resistance and solvent resistance to a dye image, and a printed matter provided with excellent durability. .

【0002】[0002]

【従来の技術】従来、簡便な印刷方法として熱転写方法
が広く使用されるようになった。熱転写方法は、基材シ
ートの一方の面に色材層が設けられた熱転写シートと、
必要に応じて画像受容層が設けられた熱転写受像シート
を重ね合わせ、サーマルヘッド等の加熱手段により熱転
写シートの背面を画像状に加熱して、色材層に含まれる
色材を選択的に移行させて、熱転写受像シート上に画像
を形成する方法である。
2. Description of the Related Art Conventionally, a thermal transfer method has been widely used as a simple printing method. The thermal transfer method is a thermal transfer sheet in which a color material layer is provided on one surface of a base sheet,
If necessary, the thermal transfer image receiving sheets provided with the image receiving layer are overlapped, and the back surface of the thermal transfer sheet is image-wise heated by a heating means such as a thermal head to selectively transfer the coloring material contained in the coloring material layer. Then, an image is formed on the thermal transfer image-receiving sheet.

【0003】熱転写方法は、溶融転写方式と昇華転写方
式に分けられる。溶融転写方式は顔料等の色材を熱溶融
性のワックスや樹脂等のバインダーに分散させた熱溶融
インキ層をPETフィルム等の基材シートに担持させた
熱転写シートを用い、サーマルヘッド等の加熱手段に画
像情報に応じたエネルギーを印加し、紙やプラスチック
シート等の熱転写受像シート上に、色材をバインダーと
共に転写する画像形成方法である。溶融転写方式による
画像は、高濃度で鮮鋭性に優れ、文字等の2値画像の記
録に適している。
The thermal transfer method is classified into a melt transfer method and a sublimation transfer method. The melt transfer method uses a heat transfer sheet in which a base material sheet such as PET film is loaded with a heat-melting ink layer in which a coloring material such as a pigment is dispersed in a binder such as a wax or a resin, which is heated by a thermal head. This is an image forming method in which energy corresponding to image information is applied to the means, and a coloring material is transferred together with a binder onto a thermal transfer image receiving sheet such as paper or a plastic sheet. An image formed by the melt transfer method has high density and excellent sharpness, and is suitable for recording binary images such as characters.

【0004】一方、昇華転写方式は主に昇華により熱移
行する染料を樹脂バインダー中に溶解或いは分散させた
染料層をPETフィルム等の基材シートに担持させた熱
転写シートを用い、サーマルヘッド等の加熱手段に画像
情報に応じたエネルギーを印加し、紙やプラスチック等
の基材シートに必要に応じて染料受容層を設けなる熱転
写受像シート上に、染料のみを転写移行させる画像形成
方法である。昇華転写方式は、印加されるエネルギー量
に応じて染料の移行量を制御できるため、サーマルヘッ
ドのドット毎に画像濃度を制御した階調画像の形成を行
うことができる。また、使用する色材が染料であるた
め、形成される画像には透明性があり、異なる色の染料
を重ねた場合の中間色の再現性が優れている。従って、
イエロー、マゼンタ、シアン、ブラック等の異なる色の
熱転写シートを用い、熱転写受像シート上に各色染料を
重ねて転写する際にも、中間色の再現性に優れた高画質
な写真調フルカラー画像の形成が可能である。
On the other hand, the sublimation transfer system uses a thermal transfer sheet in which a base material sheet such as a PET film has a dye layer in which a dye which is thermally transferred by sublimation is dissolved or dispersed in a resin binder, and a thermal transfer sheet such as a thermal head is used. This is an image forming method in which energy corresponding to image information is applied to a heating means, and only a dye is transferred and transferred onto a thermal transfer image receiving sheet in which a dye receiving layer is provided on a base material sheet such as paper or plastic if necessary. In the sublimation transfer method, since the transfer amount of the dye can be controlled according to the amount of energy applied, it is possible to form a gradation image in which the image density is controlled for each dot of the thermal head. Further, since the coloring material used is a dye, the formed image has transparency, and the reproducibility of intermediate colors when dyes of different colors are superposed is excellent. Therefore,
When using thermal transfer sheets of different colors such as yellow, magenta, cyan, and black, and transferring the dyes of each color on the thermal transfer image-receiving sheet, it is possible to form a high-quality photographic full-color image with excellent reproducibility of intermediate colors. It is possible.

【0005】これらの熱転写方法では、各種の画像を簡
便に形成することができるので、印刷枚数が比較的少な
くてもよい印刷物、例えば身分証明書等のIDカードの
作成に利用されるようになっている。
Since these thermal transfer methods can easily form various images, they have come to be used for producing printed matters such as ID cards, which require a relatively small number of printed sheets. ing.

【0006】以上のような熱転写シートで、身分証明書
等のIDカードを作成する場合、溶融転写方式は、文字
や数字等2値画像の形成は容易であるが、顔写真等の高
画質が要求される画像の形成には不適当である。また得
られた画像は耐久性、特に耐摩擦性に劣るという欠点が
ある。一方、昇華転写方式は顔写真等の階調性画像を形
成するのに適しているが、得られた画像は、印刷インキ
と異なりビヒクルがないため、耐光性、耐候性、耐摩擦
性等の耐久性に劣るという欠点がある。
When an ID card such as an identification card is produced using the above-mentioned thermal transfer sheet, the melt transfer method can easily form a binary image such as letters and numbers, but it can produce a high quality image such as a facial photograph. It is unsuitable for the required image formation. Further, the obtained image has a drawback that it is inferior in durability, particularly abrasion resistance. On the other hand, the sublimation transfer method is suitable for forming a gradation image such as a facial photograph, but since the obtained image has no vehicle unlike printing ink, it has no light resistance, weather resistance, abrasion resistance, or the like. It has the drawback of poor durability.

【0007】これらの欠点を解決する手段として、従
来、有機系紫外線防止剤や酸化防止剤を熱転写受像シー
トのいずれかの層に添加することが提案されている。こ
の方法によると耐光性はある程度改善されるが、紫外線
吸収剤は熱により揮散あるいは分解してしまい、紫外線
吸収剤の効果は経時的に減少していた。
As a means for solving these drawbacks, it has been proposed in the past to add an organic ultraviolet protection agent or an antioxidant to any layer of the thermal transfer image-receiving sheet. According to this method, the light resistance was improved to some extent, but the ultraviolet absorber was volatilized or decomposed by heat, and the effect of the ultraviolet absorber decreased with time.

【0008】また、基材フィルム上に転写性樹脂層を設
けた保護層転写シートを用い、この転写性樹脂層を転写
して、得られた画像上の少なくとも一部に保護層を設け
ることが提案されている。この方法を用いれば耐摩擦性
を向上させることはできるが、やはり十分な耐光性を得
ることはできなかった。また、紫外線吸収剤や酸化防止
剤を保護層中に含有させても、熱転写受像シートに添加
した場合と同様、熱により揮散あるいは分解してしま
い、その効果は経時的に減少していた。
It is also possible to use a protective layer transfer sheet having a transferable resin layer provided on a base film and transfer the transferable resin layer to provide the protective layer on at least a part of the obtained image. Proposed. Although abrasion resistance can be improved by using this method, sufficient light resistance cannot be obtained. Further, even when an ultraviolet absorber or an antioxidant was contained in the protective layer, it was volatilized or decomposed by heat as in the case of being added to the thermal transfer image-receiving sheet, and its effect was decreased with time.

【0009】[0009]

【発明が解決しようとする課題】本発明は、上記従来技
術の問題点を解決し、熱転写画像の各種耐久性、特に耐
光性を長期間維持することができる熱転写受像シート及
び印画物を提供することを目的とする。
SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and provides a thermal transfer image-receiving sheet and a printed matter which can maintain various durability of a thermal transfer image, especially light resistance for a long period of time. The purpose is to

【0010】[0010]

【課題を解決するための手段】上記目的を達成するため
の本発明の第1の態様は、熱転写シートと組合せて用い
られる、熱転写受像シートにおいて、該熱転写受像シー
トのいずれかの層にセリウム系紫外線吸収剤を含有する
ことを特徴とする熱転写受像シートである。
A first aspect of the present invention for achieving the above object is a thermal transfer image-receiving sheet used in combination with a thermal transfer sheet, wherein a cerium-based material is provided in any layer of the thermal transfer image-receiving sheet. A thermal transfer image-receiving sheet containing an ultraviolet absorber.

【0011】第2の態様は、染料画像を有する印画物に
おいて、上記の熱転写受像シート上に、昇華転写方式に
より染料画像が形成されたことを特徴とする印画物であ
る。
The second aspect is a printed matter having a dye image, wherein the dye image is formed on the thermal transfer image-receiving sheet by a sublimation transfer method.

【0012】[0012]

【発明の実施の形態】以下、本発明について図面を使用
して説明する。第1図は、熱転写受像シートの実施例の
1つであり、基材シート8の一方の面に、染料受容層9
が設けられている。基材シートとしては、例えば、ポリ
オレフィン系又はポリスチレン系等の合成紙、上質紙、
アート紙、コート紙、キャストコート紙、壁紙、裏打用
紙、合成樹脂又はエマルジョン含浸紙、合成ゴムラテッ
クス含浸紙、合成樹脂内添紙、板紙等、セルロース繊維
紙、ポリオレフィン、ポリ塩化ビニル、ポリエチレンテ
レフタレート、ポリスチレン、ポリメタクリレート、ポ
リカーボネート等の各種のプラスチックフィルム又はシ
ート等が使用でき、又、これらの合成樹脂に白色顔料や
充填剤を加えて成膜した白色不透明シート或いは発泡さ
せた発泡シート等も使用でき、特に限定されない。又、
上記基材シートの任意の組み合わせによる積層体も使用
できる。これらの基材シートの厚みは任意でよいが、1
0〜300μmが好ましい。
DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings. FIG. 1 is one of the examples of the thermal transfer image-receiving sheet, in which the dye receiving layer 9 is formed on one surface of the base sheet 8.
Is provided. As the base sheet, for example, polyolefin-based or polystyrene-based synthetic paper, fine paper,
Art paper, coated paper, cast coated paper, wallpaper, backing paper, synthetic resin or emulsion impregnated paper, synthetic rubber latex impregnated paper, synthetic resin internal paper, paperboard, cellulose fiber paper, polyolefin, polyvinyl chloride, polyethylene terephthalate, Various plastic films or sheets such as polystyrene, polymethacrylate, polycarbonate, etc. can be used, and a white opaque sheet formed by adding a white pigment or a filler to these synthetic resins or a foamed foamed sheet can also be used. It is not particularly limited. or,
A laminate of any combination of the above base sheets can also be used. The thickness of these base material sheets may be arbitrary, but 1
0 to 300 μm is preferable.

【0013】基材フィルムの表面に、設けられる染料受
容層は、熱転写シートから移行してくる染料を受容し、
形成された画像を維持するためのものである。染料受容
層を形成するための樹脂は、例えば、ポリプロピレン等
のポリオレフィン系樹脂、ポリ塩化ビニル、ポリ塩化ビ
ニリデン等のハロゲン化ポリマー、ポリ酢酸ビニル、ポ
リアクリルエステル等のビニルポリマー、ポリエチレン
テレフタレート、ポリエチレンイソフタレート、ポリブ
チレンテレフタレート等のポリエステル系樹脂、ポリス
チレン系樹脂、ポリアミド系樹脂、アイオノマー、セル
ロースジアセテート等のセルロース系樹脂、ポリカーボ
ネート樹脂、およびこれらの共重合体が挙げられる。
The dye receiving layer provided on the surface of the base film receives the dye transferred from the thermal transfer sheet,
It is for maintaining the formed image. The resin for forming the dye receiving layer is, for example, a polyolefin resin such as polypropylene, a halogenated polymer such as polyvinyl chloride or polyvinylidene chloride, a vinyl polymer such as polyvinyl acetate or polyacrylic ester, polyethylene terephthalate or polyethylene isophthalate. Examples thereof include polyester resins such as phthalate and polybutylene terephthalate, polystyrene resins, polyamide resins, ionomers, cellulose resins such as cellulose diacetate, polycarbonate resins, and copolymers thereof.

【0014】染料受容層は、上記の樹脂に必要な添加剤
を加えたものを、適当な有機溶剤に溶解したり或いは有
機溶剤や水に分散した分散体を、例えば、グラビアコー
ト、グラビアリバースコート、ロールコート等の形成手
段により、前記の基材シート上に塗布及び乾燥すること
により形成される。染料受容層は任意の厚みに形成する
ことができるが、好ましくは、乾燥後の厚みで1〜50
μmであり、更に好ましくは1〜10μmである。
The dye-receptive layer is prepared by dissolving the above resin with necessary additives in an appropriate organic solvent or dispersing it in an organic solvent or water, for example, a gravure coat or a gravure reverse coat. It is formed by applying and drying the base material sheet by a forming means such as a roll coat. The dye-receptive layer can be formed to have an arbitrary thickness, but the dried thickness is preferably 1 to 50.
μm, and more preferably 1 to 10 μm.

【0015】上記染料受容層の形成に際しては、染料受
容層の白色度を向上させ転写画像の鮮明度を高める目的
で、酸化チタン、酸化亜鉛、カオリンクレー、炭酸カル
シウム、微粉末シリカ等の顔料や充填剤を添加すること
ができる。又、熱転写時における転写シートとの融着を
防止するために、離型剤を添加することができる。好ま
しい離型剤としては、シリコーンオイル、リン酸エステ
ル系界面活性剤、フッ素系界面活性剤等が挙げられる
が、シリコーンオイルが好ましい。シリコーンオイルと
しては、エポキシ変性、アルキル変性、アミノ変性、カ
ルボキシル変性、アルコール変性、フッ素変性、アルキ
ルアラルキルポリエーテル変性、エポキシ・ポリエーテ
ル変性、ポリエーテル変性等の変性シリコーンオイルが
好ましい。離型剤は1種又は2種以上のものが使用さ
れ、受容層樹脂100重量部に対し、0.5〜30重量
部の割合で含有される。このような離型剤を染料受容層
に添加することにより、離型剤が染料受容層表面にブリ
ードアウトし、離型層が形成される。
In forming the dye receiving layer, pigments such as titanium oxide, zinc oxide, kaolin clay, calcium carbonate, fine powder silica, etc. may be used for the purpose of improving the whiteness of the dye receiving layer and enhancing the sharpness of the transferred image. Fillers can be added. Further, a release agent can be added to prevent fusion with the transfer sheet during thermal transfer. Preferred releasing agents include silicone oils, phosphate ester-based surfactants, fluorine-based surfactants, and the like, with silicone oils being preferred. As the silicone oil, modified silicone oils such as epoxy modified, alkyl modified, amino modified, carboxyl modified, alcohol modified, fluorine modified, alkylaralkyl polyether modified, epoxy / polyether modified, and polyether modified are preferable. One type or two or more types of release agents are used, and the release agent is contained in a ratio of 0.5 to 30 parts by weight with respect to 100 parts by weight of the receiving layer resin. By adding such a release agent to the dye receiving layer, the release agent bleeds out to the surface of the dye receiving layer, and the release layer is formed.

【0016】本発明の熱転写受像シートは、上記の基材
シート中及び/又は染料受容層中に、セリウム系紫外線
吸収剤を含有する。セリウム系紫外線吸収剤としては、
具体的には、可視光の波長の半分である200nm以下
に粒径を調整した微粒子が、保護層の透明性を維持する
ために好ましい。更に50nm以下に粒径を調整した微
粒子が、昇華画像の透明性を考慮した場合特に好まし
く、これらの粒径に調整されたセリウム系紫外線吸収剤
の中でも、酸化セリウム微粒子が特に好ましい。熱転写
受像シートの基材シート中及び/又は染料受容層中に添
加する際の酸化セリウムは、単なる粉末の形態でもよい
が、特に粒径が200nm以下の微粉末の場合、液体へ
の均一分散が難しく、二次凝集を起こし易いため、分散
性を出すための公知の易分散化表面処理を施したり、或
いは、特開平1−306435号公報記載のような、ゾ
ルやゾル粉末の状態で熱転写受像シートの基材シート中
及び/又は染料受容層中に添加することが好ましい。ま
た、このような酸化セリウムは、結晶体の状態の粉末を
用いることが好ましい。その理由は、もし非晶質の粉末
の場合、転写時の熱や圧力の変化、転写後の日光の暴
露、屋外での寒熱繰り返し等により、経時で結晶化が生
じ、酸化セリウム含有層の透明度が変化するおそれがあ
るからである。また、酸化セリウムには、酸化第一セリ
ウムと第二酸化セリウムとがあるが、これらのうち、酸
化第二セリウムが熱安定性が高く好ましい。更に、セリ
ウム系紫外線吸収剤は、サリシレート系、ベンゾフェノ
ン系、ベンゾトリアゾール系、置換アクリロニトリル
系、ニッケルキレート系、ヒンダートアミン系等の有機
系紫外線吸収剤や光安定化剤と併用して用いることもで
きる。
The thermal transfer image-receiving sheet of the present invention contains a cerium-based ultraviolet absorber in the above-mentioned base sheet and / or dye-receiving layer. As a cerium-based UV absorber,
Specifically, fine particles having a particle size adjusted to 200 nm or less, which is half the wavelength of visible light, are preferable for maintaining the transparency of the protective layer. Further, fine particles having a particle size adjusted to 50 nm or less are particularly preferable in consideration of transparency of a sublimation image, and among the cerium-based ultraviolet absorbers having these particle sizes adjusted, cerium oxide fine particles are particularly preferable. The cerium oxide to be added to the base material sheet of the thermal transfer image-receiving sheet and / or the dye-receiving layer may be in the form of a simple powder, but particularly in the case of fine powder having a particle size of 200 nm or less, uniform dispersion in a liquid is obtained. Since it is difficult and easily causes secondary agglomeration, a well-known dispersible surface treatment for imparting dispersibility is performed, or a thermal transfer image is obtained in the state of sol or sol powder as described in JP-A-1-306435. It is preferably added in the base sheet of the sheet and / or in the dye receiving layer. Further, it is preferable to use a powder in a crystalline state for such cerium oxide. The reason is that in the case of amorphous powder, crystallization occurs over time due to changes in heat and pressure during transfer, exposure to sunlight after transfer, repeated cold heat outdoors, etc., and the transparency of the cerium oxide-containing layer increases. Is likely to change. Further, cerium oxide includes cerium oxide and cerium dioxide, and of these, cerium oxide is preferable because of its high thermal stability. Further, the cerium-based UV absorber may be used in combination with a salicylate-based, benzophenone-based, benzotriazole-based, substituted acrylonitrile-based, nickel chelate-based, hindered amine-based organic UV absorber or light stabilizer. it can.

【0017】セリウム系紫外線吸収剤は、基材シート中
には、10〜90重量%の割合で含有されるのが好まし
く、30〜70重量%の割合で含有されるのが特に好ま
しい。含有量が10重量%未満では満足される耐光性が
得がたく、90重量%以上では基材シートへの着色等が
問題になり好ましくない。また、染料受容層中には、1
〜80重量%、特に5〜50重量%の割合で含有される
のが好ましい。含有量が1重量%未満では満足される耐
光性が得がたく、また80重量%以上では受容層の着色
や基材シートとの密着性等の物性の低下のため好ましく
ない。
The cerium-based ultraviolet absorber is preferably contained in the base material sheet in a proportion of 10 to 90% by weight, and particularly preferably in a proportion of 30 to 70% by weight. When the content is less than 10% by weight, it is difficult to obtain satisfactory light resistance, and when it is 90% by weight or more, coloring of the base sheet becomes a problem, which is not preferable. Further, in the dye receiving layer, 1
It is preferably contained in an amount of ˜80% by weight, particularly 5 to 50% by weight. When the content is less than 1% by weight, it is difficult to obtain satisfactory light resistance, and when the content is 80% by weight or more, the physical properties such as the coloring of the receiving layer and the adhesion to the substrate sheet are deteriorated, which is not preferable.

【0018】基材シート8と染料受容層9との密着性や
クッション性を向上させるために、必要に応じて中間層
を設けることができる。このようなクッション層を設け
ることにより、印字時にノイズがなく、画像情報に対応
した画像を再現性よく転写形成することができる。中間
層樹脂としては、例えば、ポリエステル樹脂、アクリル
樹脂、ポリウレタン樹脂、ブタジエンラバー、エポキシ
樹脂等が挙げられる。また基材シートの裏面には滑性層
を設けることもできる。滑性層としてはメチル(メタ)
アクリレート等のアクリル樹脂、塩化ビニル−酢酸ビニ
ル共重合体等のビニル系樹脂等が挙げられる。更に熱転
写受像シートには検知マークを設けることも可能であ
る。検知マークは熱転写シートと熱転写受像シートとの
位置合わせや熱転写受像シートの表裏を判別するのに便
利であり、例えば、光電管検知装置により検知しうる検
知マークを基材シートの裏面等に印刷等により設けるこ
とができる。
An intermediate layer may be provided, if necessary, in order to improve the adhesion and cushioning properties between the base sheet 8 and the dye receiving layer 9. By providing such a cushion layer, it is possible to transfer and form an image corresponding to image information with good reproducibility without noise during printing. Examples of the intermediate layer resin include polyester resin, acrylic resin, polyurethane resin, butadiene rubber, and epoxy resin. Further, a slipping layer can be provided on the back surface of the base material sheet. Methyl (meth) as the slipping layer
Examples thereof include acrylic resins such as acrylates and vinyl resins such as vinyl chloride-vinyl acetate copolymers. Further, a detection mark can be provided on the thermal transfer image receiving sheet. The detection mark is convenient for aligning the thermal transfer sheet and the thermal transfer image receiving sheet and for distinguishing the front and back of the thermal transfer image receiving sheet.For example, by printing the detection mark that can be detected by the photoelectric tube detection device on the back surface of the substrate sheet or the like. Can be provided.

【0019】熱転写受像シートは、染料受容層を省略し
た単層構造の樹脂シートから構成されていてもよい。こ
の場合、転写画像は樹脂シート表面に直接形成される。
該樹脂シートの組成物としては、上記受容層樹脂組成物
と同じものを用いることができる。更に、適当な可塑剤
等を併用することにより、十分な染着性を付与すること
ができる。また基材シート同様に、該樹脂シートは、樹
脂に白色顔料や充填剤を加えて成膜した白色不透明シー
ト或いは発泡させた発泡シートとしてもよい。樹脂シー
トの厚みは任意でよいが、10〜300μmが好まし
い。
The thermal transfer image-receiving sheet may be composed of a resin sheet having a single layer structure in which the dye receiving layer is omitted. In this case, the transferred image is directly formed on the surface of the resin sheet.
As the composition of the resin sheet, the same composition as the above-mentioned receiving layer resin composition can be used. Further, by using an appropriate plasticizer in combination, sufficient dyeing property can be imparted. Further, like the base sheet, the resin sheet may be a white opaque sheet formed by adding a white pigment or a filler to a resin to form a film, or a foamed sheet obtained by foaming. The resin sheet may have any thickness, but is preferably 10 to 300 μm.

【0020】また、本発明によれば、IDカード、身分
証明書、免許証等のカード類の作成を行うこともでき
る。これらのカードは写真等の画像情報の他に、文字情
報を含むものである。この場合、文字情報形成は溶融転
写方式により行い、写真等の画像形成は昇華転写方式で
行うこともできる。この場合も、溶融インキ層を、染料
層或いは保護層形成用の転写性樹脂層と面順次に設ける
こともできる。更にカードには、エンボス、サイン、I
Cメモリー、磁気層、ホログラム、その他の印刷等を設
けることもでき、保護層転写後にエンボス、サイン、磁
気層等を設けることもできる。
Further, according to the present invention, it is possible to prepare cards such as an ID card, an identification card and a license. These cards include character information in addition to image information such as photographs. In this case, the character information can be formed by the melt transfer method, and the image such as a photograph can be formed by the sublimation transfer method. Also in this case, the melted ink layer can be provided in a surface sequential manner with the dye layer or the transferable resin layer for forming the protective layer. In addition, the card has embossed, signed, and I
A C memory, a magnetic layer, a hologram, other printing, etc. may be provided, and an emboss, a sign, a magnetic layer, etc. may be provided after the transfer of the protective layer.

【0021】[0021]

【実施例】以下、実施例により本発明を更に具体的に説
明する。なお、文中に部または%とあるのは、特に断り
のない限り重量基準である。
The present invention will be described in more detail with reference to the following examples. In the text, parts and% are based on weight unless otherwise specified.

【0022】参考例1 厚さ6.0μmのポリエステルフィルム(ルミラー、東
レ製)を基材フィルムとし、その背面側に耐熱スリップ
層(厚み1μm)を形成し、かつ表面側にポリウレタン
系樹脂からなるプライマー層(厚み0.5μm)を形成
し、プライマー層表面に、下記組成のイエロー、マゼン
タ、シアン組成物を面順次に、塗布量が3g/m2にな
るように、グラビアコート方法により塗布及び乾燥し
て、3色の染料層が形成された昇華型熱転写シートを作
成した。 イエローインキ 分散染料 5.5部 (マクロレックスイエロー6G、バイエル社製) ポリビニルブチラール樹脂 4.5部 (エスレックBX−1、積水化学製) メチルエチルケトン/トルエン(1/1) 89部 マゼンタインキ 染料としてマゼンタ染料(ディスパーズレッド60)を
使用した以外はイエローインキと同様。 シアンインキ 染料としてシアン染料(ソルベントブルー63)を使用
した以外はイエローインキと同様。
Reference Example 1 A polyester film (Lumirror, manufactured by Toray) having a thickness of 6.0 μm was used as a base film, a heat-resistant slip layer (thickness 1 μm) was formed on the back side, and a polyurethane resin was used on the front side. A primer layer (thickness: 0.5 μm) is formed, and a yellow, magenta and cyan composition having the following composition is applied to the surface of the primer layer in a face-sequential manner by a gravure coating method so that the application amount is 3 g / m 2. It was dried to prepare a sublimation type thermal transfer sheet on which dye layers of three colors were formed. Yellow ink Disperse dye 5.5 parts (Macrolex Yellow 6G, manufactured by Bayer) Polyvinyl butyral resin 4.5 parts (ESREC BX-1, Sekisui Chemical Co., Ltd.) Methyl ethyl ketone / toluene (1/1) 89 parts Magenta ink as magenta dye dye Same as the yellow ink except that the dye (Disperse Red 60) was used. Same as the yellow ink except that a cyan dye (solvent blue 63) was used as the cyan ink dye.

【0023】比較例1 基材シートとして合成紙(ユポFPG−150、厚さ1
50μm、王子油化製)を用い、この一方の面に下記の
受容層組成物を、バーコーターにより乾燥時の塗布量が
4.0g/m2となるように塗布及び乾燥して染料受容
層を形成し、熱転写受像シートを得た。 受容層組成物 塩化ビニル・酢酸ビニル共重合体 20部 (VYHH、ユニオンカーバイド製) アミノ変性シリコーン 5部 (X−22−343、信越化学工業製) エポキシ変性シリコーン 5部 (KF−393、信越化学工業製) メチルエチルケトン/トルエン(1/1) 80部
Comparative Example 1 A synthetic paper (Yupo FPG-150, thickness 1
50 μm, manufactured by Oji Yuka Co., Ltd., and the following receiving layer composition was applied to one surface of the dye receiving layer by a bar coater so that the dry coating amount was 4.0 g / m 2, and the dye receiving layer was dried. Was formed to obtain a thermal transfer image-receiving sheet. Receptor layer composition Vinyl chloride / vinyl acetate copolymer 20 parts (VYHH, manufactured by Union Carbide) Amino-modified silicone 5 parts (X-22-343, Shin-Etsu Chemical Co., Ltd.) Epoxy-modified silicone 5 parts (KF-393, Shin-Etsu Chemical) Industrial) Methyl ethyl ketone / toluene (1/1) 80 parts

【0024】実施例1 比較例1の受容層組成物を下記の組成に変更した以外
は、比較例1と同様にして、本発明の熱転写受像シート
を得た。 受容層組成物 塩化ビニル・酢酸ビニル共重合体 20部 (VYHH、ユニオンカーバイド製) 酸化セリウム(ニードラールW−100、多木化学製) 2部 アミノ変性シリコーン 5部 (X−22−343、信越化学工業製) エポキシ変性シリコーン 5部 (KF−393、信越化学工業製) メチルエチルケトン/トルエン(1/1) 80部
Example 1 A thermal transfer image-receiving sheet of the present invention was obtained in the same manner as in Comparative Example 1 except that the composition of the receiving layer of Comparative Example 1 was changed to the following composition. Receptor layer composition Vinyl chloride / vinyl acetate copolymer 20 parts (VYHH, manufactured by Union Carbide) Cerium oxide (Needral W-100, manufactured by Taki Kagaku) 2 parts Amino-modified silicone 5 parts (X-22-343, Shin-Etsu Chemical) Industrial) Epoxy-modified silicone 5 parts (KF-393, Shin-Etsu Chemical Co., Ltd.) Methyl ethyl ketone / toluene (1/1) 80 parts

【0025】実施例2 比較例1の染料受容層と基材との間に、下記組成の中間
層組成物を固形分基準で塗布量が3g/m2となるよう
に塗布及び乾燥して中間層を形成した以外は、比較例1
と同様にして本発明の熱転写受像シートを得た。 中間層組成物 ポリエステル樹脂(バイロン200、東洋紡製) 20部 酸化セリウム(ニードラールW−100、多木化学製) 20部 メチルエチルケトン/トルエン(1/1) 80部
Example 2 An intermediate layer composition having the following composition was applied between the dye receiving layer of Comparative Example 1 and the substrate so that the coating amount was 3 g / m 2 based on the solid content, and the intermediate layer was dried. Comparative Example 1 except that a layer was formed
A thermal transfer image-receiving sheet of the present invention was obtained in the same manner as in. Intermediate layer composition Polyester resin (Vylon 200, manufactured by Toyobo) 20 parts Cerium oxide (Needral W-100, manufactured by Taki Kagaku) 20 parts Methyl ethyl ketone / toluene (1/1) 80 parts

【0026】使用例 上記のようにして得られた参考例1の転写シートの染料
層面を比較例1または実施例1、2の熱転写受像シート
の染料受容層面を重ね合わせ、顔写真を色分解して得た
イエロー、マゼンタ、シアンそれぞれの画像情報に従い
サーマルヘッドに熱エネルギーを付与し、各色染料を受
容層表面に重ね転写して熱転写受像シート上にフルカラ
ー画像を形成して、印画物を得た。以上のようにして得
られた印画物に、キセノンフェードオメーター(Ci−
35A、アトラス社製)により200kJ/m2及び3
00kJ/m2照射し、照射前後の光学濃度の変化を光
学濃度計(RD−918、マクベス社製)により測定
し、下記の式により光学濃度の残存率を算出した結果を
表1に示す。 残存率(%)=(照射後の光学濃度)/(照射前の光学
濃度)×100 ◎:残存率80%以上 ○:残存率70%以上80%未満 △:残存率60%以上70%未満 ×:残存率60%未満
Use Example The dye layer surface of the transfer sheet of Reference Example 1 obtained as described above is overlaid on the dye receiving layer surface of the thermal transfer image-receiving sheet of Comparative Example 1 or Examples 1 and 2, and the face photograph is color-separated. Thermal energy was applied to the thermal head according to the image information of each of yellow, magenta, and cyan thus obtained, and each color dye was transferred onto the surface of the receiving layer to form a full-color image on the thermal transfer image-receiving sheet to obtain a printed matter. . The xenon fade odometer (Ci-
35A, manufactured by Atlas), 200 kJ / m 2 and 3
Irradiation was performed at 00 kJ / m 2 , and the change in optical density before and after irradiation was measured by an optical densitometer (RD-918, manufactured by Macbeth Co.), and the residual ratio of the optical density was calculated by the following formula. Residual rate (%) = (optical density after irradiation) / (optical density before irradiation) × 100 ◎: residual rate 80% or more ○: residual rate 70% or more and less than 80% Δ: residual rate 60% or more and less than 70% X: residual rate less than 60%

【0027】[0027]

【表1】 [Table 1]

【0028】[0028]

【発明の効果】以上の如き本発明によれば、従来のベン
ゾトリアゾール系及びベンゾフェノン系紫外線吸収剤の
欠点である揮発性及び抽出性が大幅に改善され、紫外線
吸収効果が経時的に減少しない熱転写受像シートを得る
ことができる。また長期的に耐久性、特に耐光性に優れ
た印画物を得ることができる。
According to the present invention as described above, the thermal transfer in which volatility and extractability, which are the drawbacks of the conventional benzotriazole-based and benzophenone-based UV absorbers, are significantly improved and the UV absorbing effect does not decrease with time. An image receiving sheet can be obtained. Further, it is possible to obtain a printed matter having excellent durability, particularly light resistance, for a long period of time.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の熱転写受像シートの断面を示す図。FIG. 1 is a diagram showing a cross section of a thermal transfer image-receiving sheet of the present invention.

【符号の説明】[Explanation of symbols]

8:基材シート、9:染料受容層 8: Substrate sheet, 9: Dye receiving layer

フロントページの続き Fターム(参考) 2H111 AA08 AA09 AA10 AA11 AA27 CA03 CA04 CA37 CA41 4F100 AA17A AA17B AA17H AK03B AK12B AK42B AT00B BA02 BA10A BA10B CA07A CA07B CA13A CA23A DG10B DJ01B EC04A GB90 HB31A JD14A JL00 Continued front page    F-term (reference) 2H111 AA08 AA09 AA10 AA11 AA27                       CA03 CA04 CA37 CA41                 4F100 AA17A AA17B AA17H AK03B                       AK12B AK42B AT00B BA02                       BA10A BA10B CA07A CA07B                       CA13A CA23A DG10B DJ01B                       EC04A GB90 HB31A JD14A                       JL00

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 熱転写シートと組合せて用いられる熱転
写受像シートにおいて、該熱転写受像シートのいずれか
の層にセリウム系紫外線吸収剤を含有することを特徴と
する熱転写受像シート。
1. A thermal transfer image receiving sheet used in combination with a thermal transfer sheet, characterized in that a cerium-based ultraviolet absorber is contained in any layer of the thermal transfer image receiving sheet.
【請求項2】 請求項1に記載の熱転写受像シートにお
いて、前記熱転写受像シートが、基材シートと該基材シ
ート上に設けられた染料受容層とからなり、該基材シー
ト及び/又は該染料受容層中にセリウム系紫外線吸収剤
を含有することを特徴とする熱転写受像シート。
2. The thermal transfer image-receiving sheet according to claim 1, wherein the thermal transfer image-receiving sheet comprises a base material sheet and a dye receiving layer provided on the base material sheet, and the base material sheet and / or A thermal transfer image-receiving sheet comprising a cerium-based ultraviolet absorber in a dye receiving layer.
【請求項3】 請求項1に記載の熱転写受像シートにお
いて、前記熱転写受像シートが、基材シートと該基材シ
ート上に設けられた染料受容層とからなり、該基材シー
トと該染料受容層との間に中間層を有し、該中間層中に
セリウム系紫外線吸収剤を含有することを特徴とする熱
転写受像シート。
3. The thermal transfer image receiving sheet according to claim 1, wherein the thermal transfer image receiving sheet comprises a base material sheet and a dye receiving layer provided on the base material sheet, and the base material sheet and the dye receiving surface. A thermal transfer image-receiving sheet comprising an intermediate layer between the layers and a cerium-based ultraviolet absorber in the intermediate layer.
【請求項4】 請求項1、2又は3に記載の熱転写受像
シートにおいて、前記セリウム系紫外線吸収剤が第二酸
化セリウムからなることを特徴とする熱転写受像シー
ト。
4. The thermal transfer image-receiving sheet according to claim 1, 2 or 3, wherein the cerium-based ultraviolet absorber is composed of cerium dioxide.
【請求項5】 染料画像を有する印画物において、請求
項1、2、3又は4に記載の熱転写受像シート上に、昇
華転写方式により染料画像が形成されたことを特徴とす
る印画物。
5. A printed matter having a dye image, wherein the dye image is formed on the thermal transfer image-receiving sheet according to claim 1, by a sublimation transfer method.
JP2002324704A 2002-11-08 2002-11-08 Thermal transfer image receiving sheet and printed matter Expired - Fee Related JP3656846B2 (en)

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Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP05501594A Division JP3395090B2 (en) 1994-02-28 1994-02-28 Protective layer transfer sheet and printed matter

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100968104B1 (en) * 2005-11-15 2010-07-06 닛토덴코 가부시키가이샤 Liquid crystal display
JP2012509788A (en) * 2008-11-25 2012-04-26 ソーグラス・テクノロジーズ,インコーポレイテッド Image receiving medium and printing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100968104B1 (en) * 2005-11-15 2010-07-06 닛토덴코 가부시키가이샤 Liquid crystal display
JP2012509788A (en) * 2008-11-25 2012-04-26 ソーグラス・テクノロジーズ,インコーポレイテッド Image receiving medium and printing method

Also Published As

Publication number Publication date
JP3656846B2 (en) 2005-06-08

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