JP2006347001A - Sublimable thermal transfer image receptor - Google Patents
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- JP2006347001A JP2006347001A JP2005176141A JP2005176141A JP2006347001A JP 2006347001 A JP2006347001 A JP 2006347001A JP 2005176141 A JP2005176141 A JP 2005176141A JP 2005176141 A JP2005176141 A JP 2005176141A JP 2006347001 A JP2006347001 A JP 2006347001A
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Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
本発明は、昇華型熱転写受像体に関する。詳しくは、高画質で高精細な印刷ができ、層間剥離性に優れる昇華型熱転写受像体に関する。 The present invention relates to a sublimation thermal transfer image receptor. More specifically, the present invention relates to a sublimation thermal transfer image receptor that can perform high-quality and high-definition printing and has excellent delamination properties.
感熱転写記録方式は、基材フィルム表面に設けられたインク層を印字ヘッドによって印刷用紙の表面に転写する記録方式である。その中で昇華型熱転写法は溶融熱転写法に比べて階調性に優れていることから、ビデオプリンター、デジタルカメラ、デジタルビデオなどの画像コピーとして銀塩写真の代替用途を中心に広く普及してきている。 The thermal transfer recording method is a recording method in which an ink layer provided on the surface of a base film is transferred to the surface of a printing paper by a print head. Among them, the sublimation thermal transfer method has excellent gradation compared to the melt thermal transfer method, so it has become widespread mainly as an alternative to silver salt photography as an image copy for video printers, digital cameras, digital video, etc. Yes.
昇華型熱転写受像体としては、プラスチックシート、プラスチックシートと紙との貼合シート、合成紙等が使用される。特に無機充填剤粉末を含有したポリオレフィン樹脂を延伸して得られる内部に空隙を有する合成紙を支持体としたものは不透明性があり、階調性に優れていることから好ましいとされている（例えば、特許文献１、２及び３参照）。
また高光沢で階調性に優れた画像を得るために、内部に層状の空隙層を有する芯材層の表面に無機物または有機質の架橋高分子を少量添加した少量の空隙層を有した薄膜の表面層を付与または無機充填剤を添加しない非孔質な薄膜の表面層を付与し、表面荒れを抑えた支持体（例えば、特許文献４、５、６及び７参照）が提案されている。
As the sublimation-type thermal transfer image receptor, a plastic sheet, a plastic sheet-paper bonding sheet, synthetic paper, or the like is used. In particular, a support made of synthetic paper having voids inside obtained by stretching a polyolefin resin containing an inorganic filler powder is considered to be preferable because of its transparency and excellent gradation. For example, see Patent Documents 1, 2, and 3.)
In addition, in order to obtain an image having high gloss and excellent gradation, a thin film having a small amount of void layer in which a small amount of inorganic or organic crosslinked polymer is added to the surface of the core layer having a layered void layer inside. There has been proposed a support (see, for example, Patent Documents 4, 5, 6 and 7) which imparts a surface layer of a nonporous thin film to which a surface layer is added or an inorganic filler is not added, and suppresses surface roughness.
しかし、表面荒れを抑えるため内部に層状の空隙層を有する芯材層の表面に無機物や有機質の架橋高分子を少量添加した薄膜の表面層を付与または無機充填剤を添加しない非孔質な薄膜の表面層を付与した支持体は、芯層に空隙を有している層状構造なため、層間強度が弱く、剥がれやシワが入りやすいといった問題があった。またそれを防止するため、表面層を厚くすると感度が低下し、鮮明な画像を付与することができないといった問題点があった。
本発明は、昇華型熱転写プリンターで印刷した際に、高画質な画像が得られ、かつ層間強度が強く剥がれやシワが入りにくい昇華型熱転写受像体を提供することを課題とする。 An object of the present invention is to provide a sublimation type thermal transfer image receptor that can obtain a high-quality image and has high interlayer strength and is less likely to be peeled off or wrinkled when printed by a sublimation type thermal transfer printer.
本発明者らは、前記課題を解決するため鋭意検討した。その結果、空洞含有フィルムまたは少なくとも片面が空洞含有フィルムである空洞含有フィルム積層体を基材とし、該基材の空洞含有フィルム露出面のすくなくとも一面上に画像受容層を設けた昇華型熱転写受像体であり、該空洞含有フィルムが結晶性ポリプロピレン樹脂に対して、軟化点（環球法）１６０〜２００℃のジシクロペンタジエン石油樹脂５〜４５重量％、無機充填剤粉末４０重量％以下、かつジシクロペンタジエン石油樹脂と無機充填剤粉末の合計量１０〜４５重量％が配合された樹脂組成物（Ａ）からなる空洞を含有する芯層フィルム（ａ）とその両面に積層された結晶性ポリプロピレン樹脂組成物（Ｂ）からなる実質的に空洞を含有しない表層フィルム（ｂ）とを含む積層フィルムであり、該空洞含有フィルムは樹脂組成物（Ａ）からなる未延伸フィルムの両面に樹脂組成物（Ｂ）からなるフィルムを積層した後、面積倍率９倍以上に２軸方向に延伸されており、かつ空洞含有フィルムの芯層フィルム（ａ）と表層フィルム（ｂ）との１８０゜方向の層間剥離強度が７０ｇ／ｃｍ以上である昇華型熱転写受像体が前記課題を解決することを見出し本発明を完成した。 The present inventors diligently studied to solve the above problems. As a result, a sublimation type thermal transfer image receptor comprising a substrate containing a cavity-containing film or a cavity-containing film laminate having a cavity-containing film on at least one side, and an image-receiving layer provided on at least one surface of the cavity-containing film exposed surface of the substrate. And the void-containing film is 5 to 45% by weight of dicyclopentadiene petroleum resin having a softening point (ring ball method) of 160 to 200 ° C., 40% by weight or less of inorganic filler powder, and dicyclo A core layer film (a) comprising a resin composition (A) containing a total amount of 10 to 45% by weight of a pentadiene petroleum resin and an inorganic filler powder, and a crystalline polypropylene resin composition laminated on both sides thereof And a surface layer film (b) that is substantially free of voids and is made of a product (B), the void-containing film having a resin composition After laminating a film made of the resin composition (B) on both surfaces of the unstretched film made of (A), the core layer film (a ) And the surface film (b) have been found that a sublimation type thermal transfer image receptor having a 180 ° direction delamination strength of 70 g / cm or more can solve the above-mentioned problems, thereby completing the present invention.
本発明は、以下の構成を有する。
（１）空洞含有フィルムまたは少なくとも片面が空洞含有フィルムである空洞含有フィルム積層体を基材とし、該基材の空洞含有フィルム露出面のすくなくとも一面上に画像受容層を設けた昇華型熱転写受像体であり、該空洞含有フィルムが結晶性ポリプロピレン樹脂に対して、軟化点（環球法）１６０〜２００℃のジシクロペンタジエン石油樹脂５〜４５重量％、無機充填剤粉末４０重量％以下、かつジシクロペンタジエン石油樹脂と無機充填剤粉末の合計量１０〜４５重量％が配合された樹脂組成物（Ａ）からなる空洞を含有する芯層フィルム（ａ）とその両面に積層された結晶性ポリプロピレン樹脂組成物（Ｂ）からなる実質的に空洞を含有しない表層フィルム（ｂ）とを含む積層フィルムであり、該空洞含有フィルムは樹脂組成物（Ａ）からなる未延伸フィルムの両面に樹脂組成物（Ｂ）からなるフィルムを積層した後、面積倍率９倍以上に２軸方向に延伸されており、かつ空洞含有フィルムの芯層フィルム（ａ）と表層フィルム（ｂ）との１８０゜方向の層間剥離強度が７０ｇ／ｃｍ以上である昇華型熱転写受像体。
The present invention has the following configuration.
(1) A sublimation type thermal transfer image receptor having a void-containing film or a void-containing film laminate having at least one side as a void-containing film as a base material, and an image-receiving layer provided on at least one of the exposed surfaces of the void-containing film of the base material. And the void-containing film is 5 to 45% by weight of dicyclopentadiene petroleum resin having a softening point (ring ball method) of 160 to 200 ° C., 40% by weight or less of inorganic filler powder, and dicyclo A core layer film (a) comprising a resin composition (A) containing a total amount of 10 to 45% by weight of a pentadiene petroleum resin and an inorganic filler powder, and a crystalline polypropylene resin composition laminated on both sides thereof And a surface layer film (b) substantially free of voids comprising the product (B), the void-containing film comprising a resin composition ( And a core layer film (a) of a void-containing film that is stretched in a biaxial direction at an area magnification of 9 times or more, after laminating a film made of the resin composition (B) on both sides of an unstretched film made of A sublimation thermal transfer image receptor having an interlayer peel strength in the 180 ° direction of the surface layer film (b) of 70 g / cm or more.
表層フィルム（ｂ）の厚さが２〜８μｍの範囲である前記（１）項記載の昇華型
熱転写受像体。
（３）空洞含有フィルム積層体が、空洞含有フィルムと紙との積層体である前記（１）または（２）項記載の昇華型熱転写受像体。
（４）空洞含有フィルム積層体が、空洞含有フィルム、紙、及び合成樹脂フィルムの順で積層された積層体である前記（１）または（２）項記載の昇華型熱転写受像体。
（５）合成樹脂フィルムが、アクリル樹脂及び塩化ビニル・酢酸ビニル共重合体樹脂の少なくとも１種と無機充填剤を含有する塗料組成物の塗膜、またはポリオレフィン樹脂押出フィルムである前記（４）項記載の昇華型熱転写受像体。
（６）画像受容層が、ガラス転移温度（Ｔｇ）４０℃以上、比重１．２５以上、ＳＰ値９．５〜１２．０で、ポリエステル構成成分の６０モル％以上がエチレングリコールであるポリエステル系樹脂を含有する前記（１）〜（５）項のいずれか１項記載の昇華型熱転写受像体。
The sublimation thermal transfer image receptor according to (1) above, wherein the thickness of the surface layer film (b) is in the range of 2 to 8 μm.
(3) The sublimation thermal transfer image receptor according to (1) or (2), wherein the void-containing film laminate is a laminate of a void-containing film and paper.
(4) The sublimation thermal transfer image receiver according to (1) or (2), wherein the void-containing film laminate is a laminate in which a void-containing film, paper, and a synthetic resin film are laminated in this order.
(5) Item (4), wherein the synthetic resin film is a coating film of a coating composition containing at least one of an acrylic resin and a vinyl chloride / vinyl acetate copolymer resin and an inorganic filler, or a polyolefin resin extruded film. The sublimation thermal transfer image receptor described.
(6) A polyester system in which the image receiving layer has a glass transition temperature (Tg) of 40 ° C. or more, a specific gravity of 1.25 or more, an SP value of 9.5 to 12.0, and 60 mol% or more of the polyester constituents is ethylene glycol. The sublimation thermal transfer image receptor according to any one of (1) to (5), which contains a resin.
本発明の昇華型熱転写受像体を使用して、昇華型熱転写プリンターで印刷を行うと、高画質な画像が得られ、かつ層間剥離強度が強く、剥がれやシワが入りにくい。また、基材として空洞含有フィルムと紙とを張り合わせた昇華型熱転写受像体は、印画紙の代替として使用するのに好適である。 When printing is performed with a sublimation type thermal transfer printer using the sublimation type thermal transfer image receptor of the present invention, a high quality image is obtained, the delamination strength is strong, and peeling and wrinkles are not easily generated. Further, a sublimation type thermal transfer image receptor in which a void-containing film and paper are laminated as a base material is suitable for use as an alternative to photographic paper.
以下に、本発明を実施するための最良の形態を説明する。
本発明の昇華型熱転写受像体は、高画質で高精細な印刷ができ、層間剥離性に優れる性能を付与するため、空洞（微細なボイド）含有フィルムをまたは少なくとも片面が空洞含有フィルムである空洞含有フィルム積層体を基材とする。
The best mode for carrying out the present invention will be described below.
The sublimation type thermal transfer image receptor of the present invention can provide a high-quality and high-definition printing, and a cavity containing a void (fine void) -containing film or a cavity containing a cavity-containing film on at least one side in order to provide performance excellent in delamination. The containing film laminate is used as a base material.
該空洞含有フィルムは、結晶性ポリプロピレン樹脂に対して、軟化点（環球法）１６０〜２００℃のジシクロペンタジエン石油樹脂５〜４５重量％、無機充填剤粉末４０重量％以下、かつジシクロペンタジエン石油樹脂と無機充填剤粉末の合計量１０〜４５重量％が配合された樹脂組成物（Ａ）からなる空洞を含有する芯層フィルム（ａ）と、その両面に積層された結晶性ポリプロピレン樹脂組成物（Ｂ）からなる実質的に空洞を含有しない表層フィルム（ｂ）とを含む積層フィルムであり、該空洞含有フィルムは樹脂組成物（Ａ）からなる未延伸フィルムの両面に樹脂組成物（Ｂ）からなるフィルムを積層した後、面積倍率９倍以上に延伸して得られる空洞含有積層延伸フィルムである。 The void-containing film is composed of 5 to 45% by weight of dicyclopentadiene petroleum resin having a softening point (ring and ball method) of 160 to 200 ° C., 40% by weight or less of inorganic filler powder, and dicyclopentadiene petroleum. A core layer film (a) containing a cavity composed of a resin composition (A) containing a total amount of resin and inorganic filler powder of 10 to 45% by weight, and a crystalline polypropylene resin composition laminated on both sides thereof (B) is a laminated film comprising a surface layer film (b) substantially free of voids, and the void-containing film is a resin composition (B) on both sides of an unstretched film comprising a resin composition (A). Is a void-containing laminated stretched film obtained by laminating a film made of
本発明の昇華型熱転写受像体において、樹脂組成物（Ａ）及び樹脂組成物（Ｂ）に用いられる結晶性ポリプロピレン樹脂は、プロピレンの結晶性単独重合体、プロピレンとエチレンもしくは炭素数４以上のα−オレフィンから選ばれる１種以上との二元以上の結晶性共重合体、またはそれらの混合物である。具体的には、沸騰ｎ−ヘプタン不溶部を７０重量％以上、好ましくは８０重量％以上含有する結晶性ポリプロピレン、プロピレン重合成分を７０重量％以上含有する結晶性エチレン−プロピレン共重合体、結晶性プロピレン−１−ブテン共重合体、結晶性プロピレン−１−ヘキセン共重合体、結晶性エチレン−プロピレン−１−ブテン三元共重合体等の結晶融点を有するプロピレン共重合体が挙げられる。 In the sublimation type thermal transfer image receptor of the present invention, the crystalline polypropylene resin used in the resin composition (A) and the resin composition (B) is a crystalline homopolymer of propylene, propylene and ethylene, or α having 4 or more carbon atoms. -Two or more crystalline copolymers with one or more selected from olefins, or a mixture thereof. Specifically, crystalline polypropylene containing a boiling n-heptane insoluble part of 70% by weight or more, preferably 80% by weight or more, crystalline ethylene-propylene copolymer containing 70% by weight or more of a propylene polymerization component, crystallinity Examples thereof include propylene copolymers having a crystalline melting point such as propylene-1-butene copolymer, crystalline propylene-1-hexene copolymer, and crystalline ethylene-propylene-1-butene terpolymer.
尚、樹脂組成物（Ａ）に用いられる結晶性ポリプロピレン樹脂と樹脂組成物（Ｂ）に用いられる結晶性ポリプロピレン樹脂は、同一でも別々でもよい。また、本発明においてフィルムとは、フィルムとシートの総称である。
本発明で用いられる結晶性ポリプロピレン樹脂のメルトマスフローレイト（ＪＩＳ Ｋ ７２１０（試験温度２３０℃、公称荷重２．１６ｋｇ）により測定、以下ＭＦＲという）は、０．５〜２０ｇ／１０ｍｉｎが好ましく、０．５〜１０ｇ／１０ｍｉｎがより好ましい。
In addition, the crystalline polypropylene resin used for the resin composition (A) and the crystalline polypropylene resin used for the resin composition (B) may be the same or different. Moreover, in this invention, a film is a general term for a film and a sheet | seat.
The melt mass flow rate (measured according to JIS K 7210 (test temperature 230 ° C., nominal load 2.16 kg), hereinafter referred to as MFR) of the crystalline polypropylene resin used in the present invention is preferably 0.5 to 20 g / 10 min. 5-10 g / 10min is more preferable.
本発明で樹脂組成物（Ａ）に用いられるジシクロペンタジエン石油樹脂は、軟化点（環球法）が１６０〜２００℃である。
ジシクロペンタジエン石油樹脂の軟化点（環球法）が１６０〜２００℃であると、結晶性ポリプロピレン樹脂への分散性が良好で、該石油樹脂が配合された樹脂組成物（Ａ）から得られた未延伸フィルムを延伸することにより、微細で均質な空洞を有する芯層フィルム（ａ）が得られる。
The dicyclopentadiene petroleum resin used for the resin composition (A) in the present invention has a softening point (ring and ball method) of 160 to 200 ° C.
When the softening point (ring and ball method) of the dicyclopentadiene petroleum resin was 160 to 200 ° C., the dispersibility into the crystalline polypropylene resin was good, and the resin composition (A) in which the petroleum resin was blended was obtained. By stretching the unstretched film, a core layer film (a) having fine and homogeneous cavities is obtained.
前記の軟化点（環球法）１６０〜２００℃のジシクロペンタジエン石油樹脂としては、石油ナフサ等のスチームクラッキング等から得られるシクロペンタジエン、ジシクロペンタジエン、それらのアルキル置換体及びオリゴマー及びそれらの混合物から選ばれる１種以上（以下、シクロペンタジエン系成分という）を主成分（最も多い成分）とする留分を重合させて得られる石油樹脂（ＨＲ）の中で、シクロペンタジエン系成分を５０重量％以上含有し、その軟化点（環球法）が１６０〜２００℃の範囲にある高分子で高軟化点の石油樹脂（ＨＳＨＲ）、ならびに石油樹脂（ＨＲ）の中でシクロペンタジエン系成分を５０重量％以上含有するものを、バナジウム、ニッケルもしくはコバルト等の金属またはその酸化物等の触媒を用いて、溶剤の存在下で、温度１５０〜３００℃、水素圧１〜１５ＭＰａの条件下で水素化して得られる軟化点（環球法）１６０〜２００℃、ヨウ素価２０以下の水素化ジシクロペンタジエン石油樹脂（ＨＧＨＲ）またはそれらの混合物が挙げられる。 Examples of the dicyclopentadiene petroleum resin having a softening point (ring and ball method) of 160 to 200 ° C. include cyclopentadiene, dicyclopentadiene, alkyl substituted products and oligomers thereof, and mixtures thereof obtained from steam cracking such as petroleum naphtha. 50% by weight or more of cyclopentadiene component in petroleum resin (HR) obtained by polymerizing a fraction having one or more selected components (hereinafter referred to as cyclopentadiene component) as a main component (most component) A high-softening point petroleum resin (HSHR) having a softening point (ring and ball method) in the range of 160 to 200 ° C., and a cyclopentadiene-based component in the petroleum resin (HR) of 50% by weight or more. Contains a solvent such as a metal such as vanadium, nickel, or cobalt or a catalyst such as an oxide thereof. Hydrogenated dicyclopentadiene petroleum resin (HGHR) having a softening point (ring and ball method) of 160 to 200 ° C. and an iodine value of 20 or less obtained by hydrogenation under conditions of a temperature of 150 to 300 ° C. and a hydrogen pressure of 1 to 15 MPa. Or a mixture thereof.
樹脂組成物（Ａ）に配合される無機充填剤粉末としては、平均粒径が好ましくは０．０１〜２０μｍ、より好ましくは０．０１〜１０μｍ、更に好ましくは０．１〜５μｍの炭酸カルシウム、タルク、酸化チタン、及びシリカ等が挙げられるが、コスト面から炭酸カルシウムが有利であり、隠蔽性の点では酸化チタンが優れる。これら無機充填剤粉末は２種以上を併用しても良く、屈折率の違う２種類以上の無機充填剤粉末を併用すると芯層フィルム（ａ）に高い不透明度が付与される。 As an inorganic filler powder blended in the resin composition (A), calcium carbonate having an average particle diameter of preferably 0.01 to 20 μm, more preferably 0.01 to 10 μm, still more preferably 0.1 to 5 μm, Examples include talc, titanium oxide, and silica. From the viewpoint of cost, calcium carbonate is advantageous, and titanium oxide is excellent in terms of concealability. Two or more kinds of these inorganic filler powders may be used in combination. When two or more kinds of inorganic filler powders having different refractive indexes are used in combination, high opacity is imparted to the core layer film (a).
本発明においては、樹脂組成物（Ａ）として、結晶性ポリプロピレン樹脂に、軟化点（環球法）１６０〜２００℃のジシクロペンタジエン石油樹脂５〜４５重量％、好ましくは５〜３５重量％、無機充填剤粉末４０重量％以下、好ましくは３０重量％以下、かつジシクロペンタジエン石油樹脂と無機充填剤粉末の合計量１０〜４５重量％、好ましくは１５〜３５重量％が配合される。ジシクロペンタジエン石油樹脂と無機充填剤粉末の配合量の合計が、上記の範囲であれば、芯層フィルム（ａ）と表層フィルム（ｂ）との層間剥離が起こりにくく、得られる昇華型熱転写受像体がクッション性に欠けて画像が欠けたり発色が淡くなるといった問題や、樹脂組成物（Ａ）から芯層フィルム（ａ）を製造する過程で、未延伸フィルムを延伸する時に破断が発生することもない。 In the present invention, as the resin composition (A), a crystalline polypropylene resin is added to 5-45% by weight, preferably 5 to 35% by weight, dicyclopentadiene petroleum resin having a softening point (ring and ball method) of 160 to 200 ° C. A filler powder of 40 wt% or less, preferably 30 wt% or less, and a total amount of dicyclopentadiene petroleum resin and inorganic filler powder of 10 to 45 wt%, preferably 15 to 35 wt% is blended. When the total amount of the dicyclopentadiene petroleum resin and the inorganic filler powder is within the above range, delamination between the core layer film (a) and the surface layer film (b) hardly occurs, and the resulting sublimation type thermal transfer image receiver The problem is that the body lacks cushioning properties, the image is missing, or the color development becomes light, or the core layer film (a) is produced from the resin composition (A), and breakage occurs when the unstretched film is stretched. Nor.
前記樹脂組成物（Ａ）には、必要に応じてポリプロピレンに添加することが公知の各種添加剤、例えばフェノール系やチオエーテル系ないし燐系の加工安定剤・酸化防止剤、ステアリン酸カルシウム等の高級脂肪酸金属塩、脂肪酸アミド等の潤滑剤、顔料、発泡剤、添加ポリマーとしてポリエチレン類やエチレン−プロピレンゴム、石油樹脂等を本発明の目的を損なわない範囲で添加することができる。 In the resin composition (A), various additives known to be added to polypropylene as required, for example, phenol-based, thioether-based or phosphorus-based processing stabilizers / antioxidants, and higher fatty acids such as calcium stearate. Lubricants such as metal salts and fatty acid amides, pigments, foaming agents, polyethylenes, ethylene-propylene rubber, petroleum resins, and the like can be added as long as the object of the present invention is not impaired.
前記樹脂組成物（Ａ）は、結晶性ポリプロピレン樹脂、ジシクロペンタジエン石油樹脂、無機充填剤粉末、及び添加剤を通常のブレンダーまたはミキサーで攪拌混合し調合することができる。また一般的な押出機を用いて溶融混練してペレットにすることもできる。 The resin composition (A) can be prepared by stirring and mixing a crystalline polypropylene resin, dicyclopentadiene petroleum resin, inorganic filler powder, and additives with an ordinary blender or mixer. It can also be melt-kneaded into pellets using a general extruder.
本発明において、結晶性ポリプロピレン樹脂組成物から基材フィルムを得る方法としては、Ｔダイ押出成形法やインフレーション押出成形法等の公知の方法により未延伸のフィルムシートを得て、引き続き公知の二軸延伸機を用いて延伸する方法が例示できる。延伸条件は使用する延伸機により異なるが、面積倍率９倍以上が好ましい。また、二軸延伸機は、同時延伸方式でも逐次延伸方式でもよい。 In the present invention, as a method for obtaining a base film from a crystalline polypropylene resin composition, an unstretched film sheet is obtained by a known method such as a T-die extrusion method or an inflation extrusion method, and then a known biaxial film is obtained. A method of stretching using a stretching machine can be exemplified. The stretching conditions vary depending on the stretching machine used, but an area magnification of 9 times or more is preferable. The biaxial stretching machine may be a simultaneous stretching method or a sequential stretching method.
本発明においては、表層フィルム（ｂ）厚さは２〜８μｍ、好ましくは４〜７μｍの範囲であることが望ましい。上記の範囲であれば、表層フィルム（ｂ）の上にテープを貼り付けて引き剥がしたときにシワが入りにくく、また印刷したときに感度が低下し、鮮明な画像を付与することができないといった問題が発生することもない。 In the present invention, the thickness of the surface layer film (b) is 2 to 8 μm, preferably 4 to 7 μm. Within the above range, wrinkles are less likely to occur when the tape is applied to the surface layer film (b) and peeled off, and the sensitivity is reduced when printed, and a clear image cannot be imparted. There is no problem.
前記樹脂組成物（Ｂ）には、必要に応じてポリプロピレンに添加することが公知の各種添加剤、例えばフェノール系やチオエーテル系ないし燐系の加工安定剤・酸化防止剤、ステアリン酸カルシウム等の高級脂肪酸金属塩、脂肪酸アミド等の潤滑剤、顔料、発泡剤、添加ポリマーとしてポリエチレン類やエチレン−プロピレンゴム、石油樹脂等を本発明の目的を損なわない範囲で添加することができる。 In the resin composition (B), various additives known to be added to polypropylene as required, for example, phenol-based, thioether-based or phosphorus-based processing stabilizers / antioxidants, and higher fatty acids such as calcium stearate. Lubricants such as metal salts and fatty acid amides, pigments, foaming agents, polyethylenes, ethylene-propylene rubber, petroleum resins, and the like can be added as long as the object of the present invention is not impaired.
前記樹脂組成物（Ｂ）は、結晶性ポリプロピレン樹脂、及び添加剤を通常のブレンダーまたはミキサーで攪拌混合し調合することができる。また一般的な押出機を用いて溶融混練してペレットにすることもできる。 The resin composition (B) can be prepared by stirring and mixing a crystalline polypropylene resin and an additive with an ordinary blender or mixer. It can also be melt-kneaded into pellets using a general extruder.
本発明において、基材に用いられる空洞含有フィルムを得る方法としては、Ｔダイ押出成形法やインフレーション押出成形法等の公知の方法により、樹脂組成物（Ａ）の層とその両面に積層された組成物（Ｂ）の層からなる未延伸の積層フィルムを得て、引き続き公知の二軸延伸機を用いて面積倍率９倍以上に２軸方向に延伸する方法が例示できる。尚、二軸延伸機は、同時延伸方式でも逐次延伸方式でもよい。 In the present invention, as a method for obtaining a void-containing film used for a substrate, the resin composition (A) was laminated on both sides thereof by a known method such as a T-die extrusion method or an inflation extrusion method. An example is a method in which an unstretched laminated film composed of the layer of the composition (B) is obtained and subsequently stretched in a biaxial direction to an area magnification of 9 times or more using a known biaxial stretching machine. The biaxial stretching machine may be a simultaneous stretching method or a sequential stretching method.
空洞含有フィルムにおいて、芯層フィルム（ａ）の厚さは、基材としてのクッション性の点から、１５〜５５μｍが好ましく、２０〜４５μｍがより好ましい。表層フィルム（ｂ）の厚さは、画像受容層との接着性の点、及び後述の補強剤との接着性の点から、各々２〜８μｍが好ましい。また、空洞含有フィルムの厚さは、基材としてのクッション性や強度の観点から、２０〜６０μｍが好ましく、２５〜５０μｍがより好ましい。 In the void-containing film, the thickness of the core layer film (a) is preferably 15 to 55 μm, more preferably 20 to 45 μm, from the viewpoint of cushioning properties as a base material. The thickness of the surface layer film (b) is preferably 2 to 8 μm from the viewpoint of adhesiveness with the image receiving layer and adhesiveness with the reinforcing agent described later. The thickness of the void-containing film is preferably 20 to 60 μm, and more preferably 25 to 50 μm, from the viewpoint of cushioning properties and strength as a base material.
本発明において、基材に用いられる空洞含有フィルムは、芯層フィルム（ａ）と表層フィルム（ｂ）の１８０゜方向の層間剥離強度が７０ｇ／ｃｍ以上、好ましくは７５〜２００ｇ／ｃｍである。層間剥離強度が上記の範囲であれば、空洞含有フィルムは、剥がれや皺が入りにくいため、昇華型熱転写受像体の基材として好適に使用することができる。 In the present invention, the void-containing film used for the substrate has a delamination strength in the 180 ° direction between the core layer film (a) and the surface layer film (b) of 70 g / cm or more, preferably 75 to 200 g / cm. If the delamination strength is in the above range, the void-containing film can be suitably used as a base material for a sublimation thermal transfer image receptor because peeling and wrinkles are difficult to enter.
本発明において、昇華型熱転写受像体の基材としては、空洞含有フィルムを単独で使用する他に、少なくとも片面が空洞含有フィルムである空洞含有フィルム積層体を用いることができる。空洞含有フィルム積層体としては、空洞含有フィルムと紙との積層体、及び空洞含有フィルムとポリエチレンテレフタレート樹脂（ＰＥＴ）フィルムとの積層体が例示される。具体的な積層例としては、空洞含有フィルム／紙（またはＰＥＴフィルム）、空洞含有フィルム／紙（またはＰＥＴフィルム）／空洞含有フィルムの組合わせが挙げられる。基材としてこれら積層体を用いることによって、強度に優れた変形しにくい昇華型熱転写受像体が得られる。該補強材の厚さは、８０〜２５０μｍが好ましい。
空洞含有フィルム／紙（またはＰＥＴフィルム）／空洞含有フィルムの組合わせの場合は、カールしにくい空洞含有フィルム積層体が得られ、両面上に画像受容層を設けることによって、両面印刷可能な昇華型熱転写受像体となる。
In the present invention, as a substrate for a sublimation thermal transfer image receptor, a cavity-containing film laminate in which at least one surface is a cavity-containing film can be used in addition to a cavity-containing film alone. Examples of the void-containing film laminate include a laminate of a void-containing film and paper, and a laminate of a void-containing film and a polyethylene terephthalate resin (PET) film. Specific examples of lamination include a combination of cavity-containing film / paper (or PET film), cavity-containing film / paper (or PET film) / cavity-containing film. By using these laminates as a base material, a sublimation type thermal transfer image receiving body excellent in strength and hardly deformed can be obtained. The thickness of the reinforcing material is preferably 80 to 250 μm.
In the case of the combination of void-containing film / paper (or PET film) / cavity-containing film, a void-containing film laminate that is difficult to curl is obtained, and by providing an image receiving layer on both sides, a sublimation type that can be printed on both sides. It becomes a thermal transfer image receptor.
また、前記空洞含有フィルム／紙、または空洞含有フィルム／ＰＥＴフィルムの組合わせにおいて、更に紙やＰＥＴフィルムの表面に合成樹脂フィルムを積層することにより、カールしにくく、搬送性に優れた空洞含有フィルム積層体が得られる。該合成樹脂フィルムとしては上記特性の発現ため、アクリル樹脂及び塩化ビニル・酢酸ビニル共重合体樹脂の少なくとも１種と無機充填剤を含有する塗料組成物の塗膜、またはポリオレフィン樹脂押出フィルムが好適に用いられる。また、該合成樹脂フィルムの露出面はマット状であることが好ましい。
該合成樹脂フィルムの厚さは、５〜４０μｍが好ましい。
これら積層体は接着剤を使用する等の公知の積層方法で製造することができる。
In addition, in the combination of the void-containing film / paper or the void-containing film / PET film, the synthetic resin film is further laminated on the surface of the paper or the PET film, so that it is difficult to curl and has excellent transportability. A laminate is obtained. As the synthetic resin film, a coating film of a coating composition containing at least one of an acrylic resin and a vinyl chloride / vinyl acetate copolymer resin and an inorganic filler, or a polyolefin resin extruded film is preferable because of the development of the above characteristics. Used. The exposed surface of the synthetic resin film is preferably mat-shaped.
The thickness of the synthetic resin film is preferably 5 to 40 μm.
These laminates can be produced by a known lamination method such as using an adhesive.
本発明の昇華型熱転写受像体においては、基材の空洞含有フィルム露出面の少なくとも一面上に画像受容層が設けられる。画像受容層は、ガラス転移温度（Ｔｇ）４０℃以上、樹脂比重１．２５以上、ＳＰ値９．５〜１２．０で、ポリエステル構成成分の６０モル％以上がエチレングリコールであるポリエステル系樹脂を含有することが好ましい。該ポリエステル系樹脂を用いることによって、昇華性染料に対して十分な染着性を有する画像受容層が得られる。
画像受容層は、前記ポリエステル系樹脂を含有する画像受容層形成用塗布剤を、空洞含有フィルム面に塗布し、乾燥することにより形成される。
In the sublimation thermal transfer image receptor of the present invention, an image receiving layer is provided on at least one of the exposed surfaces of the substrate containing the void-containing film. The image receiving layer comprises a polyester resin having a glass transition temperature (Tg) of 40 ° C. or more, a resin specific gravity of 1.25 or more, an SP value of 9.5 to 12.0, and 60 mol% or more of the polyester constituents being ethylene glycol. It is preferable to contain. By using the polyester-based resin, an image receiving layer having sufficient dyeing property for a sublimable dye can be obtained.
The image-receiving layer is formed by applying an image-receiving layer-forming coating agent containing the polyester-based resin onto the cavity-containing film surface and drying.
前記ポリエステル系樹脂はジカルボン酸と２価アルコールの重縮合反応で得られる。ポリエステル系樹脂においてカルボン酸成分としては、例えばテレフタル酸、イソフタル酸などの芳香族ジカルボン酸、コハク酸、アジピン酸などの脂肪族ジカルボン酸、マレイン酸、フマル酸、１，４−シクロヘキサンジカルボン酸などの不飽和脂肪族及び脂環族ジカルボン酸などを挙げることができる。 The polyester resin is obtained by a polycondensation reaction of a dicarboxylic acid and a dihydric alcohol. Examples of the carboxylic acid component in the polyester resin include aromatic dicarboxylic acids such as terephthalic acid and isophthalic acid, aliphatic dicarboxylic acids such as succinic acid and adipic acid, maleic acid, fumaric acid, and 1,4-cyclohexanedicarboxylic acid. Examples thereof include unsaturated aliphatic and alicyclic dicarboxylic acids.
前記ポリエステル系樹脂中においては全グリコール成分中のエチレングリコールが６０モル％以上含有されていることが必須であり、上記エチレングリコールの含有率が６０モル％以上であれば画像受容層の耐溶剤性、耐油脂性が良い。また全グリコール成分の４０モル％未満使用されるグリコール成分としては、プロピレングリコール、ネオペンチルグリコール、ポリエチレングリコール、ジエチレングリコール、トリシクロデカンジメチロール、シクロヘキサンジメチロール等が挙げられる。 In the polyester-based resin, it is essential that ethylene glycol in the total glycol component is contained in an amount of 60 mol% or more, and if the ethylene glycol content is 60 mol% or more, the solvent resistance of the image receiving layer. Good oil and fat resistance. Examples of the glycol component used in less than 40 mol% of the total glycol component include propylene glycol, neopentyl glycol, polyethylene glycol, diethylene glycol, tricyclodecane dimethylol, cyclohexane dimethylol and the like.
前記ポリエステル系樹脂のガラス転移温度（Ｔｇ）は４０℃以上であり、好ましくは５０℃以上である。Ｔｇが４０℃以上であれば環境の温度変化によって画像受容層がブロッキングを起こすこともなく、昇華型熱転写受像体に印刷する際の搬送時等にトラブルが生じにくい。 The glass transition temperature (Tg) of the polyester resin is 40 ° C. or higher, preferably 50 ° C. or higher. When Tg is 40 ° C. or higher, the image receiving layer does not block due to a change in environmental temperature, and troubles do not easily occur during transport when printing on a sublimation thermal transfer image receptor.
ポリエステル系樹脂のＳＰ値は９．５〜１２．０であり、この範囲であれば画像受容層の耐溶剤性や耐水性の低下がない。 The SP value of the polyester-based resin is 9.5 to 12.0. Within this range, there is no decrease in the solvent resistance or water resistance of the image receiving layer.
ポリエステル系樹脂の比重（３０℃）は１．２５以上であることが必須であり、この範囲であれば記録画像の保存性が良好である。 The specific gravity (30 ° C.) of the polyester resin is essential to be 1.25 or more, and within this range, the recorded image has good storage stability.
前記ポリエステル系樹脂は、更に画像保存性向上のためにポリビニル系樹脂、ポリアクリル酸系樹脂、ポリオレフィン系樹脂等と混合させたり反応させることができる。
また前記ポリエステル系樹脂は、画像耐久性を更に向上させるためにシリコン樹脂、メラミン樹脂、エポキシ樹脂、イソシアネート樹脂等の熱硬化樹脂を併用し架橋剤を用いて熱硬化または架橋することもできる。
その他離型性向上のためにフッソ系樹脂、シリコン系樹脂、有機カルボン酸塩化合物等の滑性剤物質を添加してもよい。
The polyester resin can be mixed or reacted with a polyvinyl resin, a polyacrylic acid resin, a polyolefin resin, or the like for further improving image storage stability.
The polyester resin may be thermoset or cross-linked using a cross-linking agent in combination with a thermosetting resin such as a silicon resin, a melamine resin, an epoxy resin, or an isocyanate resin in order to further improve image durability.
In addition, a lubricant material such as a fluorine-based resin, a silicon-based resin, or an organic carboxylate compound may be added to improve the releasability.
基材の空洞含有フィルム露出面のすくなくとも一面上に、前記ポリエステル系樹脂を含有する画像受容層を形成するには、ポリエステル系樹脂を溶剤に溶解した溶液、非水分散体、水系分散体もしくは水溶液（無溶剤）等の塗布剤（画像受容層形成用塗布剤）の形態にして、該塗布剤を空洞含有フィルム露出面に塗布し、塗布後適当な温度で乾燥して塗膜を形成させる方法が例示される。該画像受容層の厚さは２〜１０μｍが好ましい。
また、本発明の昇華型熱転写受像体の厚さは、特に限定はされないが１２０〜３６０μｍが例示される。
In order to form an image receiving layer containing the polyester resin on at least one of the exposed surfaces of the void-containing film of the substrate, a solution, a non-aqueous dispersion, an aqueous dispersion or an aqueous solution in which the polyester resin is dissolved in a solvent. A method of forming a coating film in the form of a coating agent (image-receiving layer forming coating agent) such as (solvent-free), applying the coating agent to the void-containing film exposed surface, and drying at an appropriate temperature after coating. Is exemplified. The thickness of the image receiving layer is preferably 2 to 10 μm.
The thickness of the sublimation thermal transfer image receptor of the present invention is not particularly limited, but is exemplified by 120 to 360 μm.
また本発明においては、基材の空洞含有フィルムの塗布面に対して前記画像受容層が十分に接着することが必要である。そのため、基材フィルム塗布面の濡れ性改良の方法として、コロナ処理、プラズマ処理、フレーム処理等の公知の処理を行うことができる。前記ポリエステル系樹脂としては、東洋紡績（株）のバイロン及びバイナロール（商品名）を挙げることができる。 In the present invention, it is necessary that the image receiving layer is sufficiently adhered to the surface of the base material containing the void-containing film. Therefore, known methods such as corona treatment, plasma treatment, and flame treatment can be performed as a method for improving the wettability of the base film application surface. Examples of the polyester resin include Byron and Vinaroll (trade name) of Toyobo Co., Ltd.
本発明において、基材が空洞含有フィルム積層体である昇華型熱転写受像体を製造する場合は、基材を製造した後に基材の空洞含有フィルム露出面のすくなくとも一面上に画像受容層が形成してもよいが、空洞含有フィルムの片面に予め画像受容層を形成した後の空洞含有フィルムの他方の面に補強材等を貼り合わせてもよい。 In the present invention, when producing a sublimation type thermal transfer image receptor in which the substrate is a void-containing film laminate, an image-receiving layer is formed on at least one of the exposed surfaces of the void-containing film of the substrate after the substrate is produced. However, a reinforcing material or the like may be bonded to the other surface of the cavity-containing film after the image-receiving layer is formed in advance on one surface of the cavity-containing film.
以下、実施例及び比較例によって本発明を具体的に説明するが、本発明はこれらにより限定されるべきものではない。尚、実施例及び比較例で用いた評価方法は下記の通りである。 EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention concretely, this invention should not be limited by these. In addition, the evaluation method used by the Example and the comparative example is as follows.
（１）層間剥離強度
空洞含有フィルムをダンベルカッター（商品名、（株）ダンベル製）で長さ１０ｃｍ、幅１ｃｍに打ち抜き、試験片を作成し、温度２３℃、相対湿度５０％で２４時間状態調節後、引張試験機ストログラフＲ−３（商品名、（株）東洋精機製作所製）にて引張速度３００ｍｍ/ｍｉｎで１８０゜方向の表層フィルム（ｂ）と芯層フィルム（ａ）との剥離強度を測定した（ｎ＝５の平均値）。またメンディングテープを表層フィルム（ｂ）に貼り付けて一気に引き剥がし、基材の状態を観察し、下記の基準で判定した。
○：層間剥離強度が７０ｇ／ｃｍ以上でテープ剥離試験により表層浮きや剥離がない
（実用性満足）
×：層間剥離強度が７０ｇ／ｃｍ未満でテープ剥離試験により表層浮きや表層破壊が
見られる（実用性不満足）
(1) Interlaminar peel strength A void-containing film was punched out into a length of 10 cm and a width of 1 cm with a dumbbell cutter (trade name, manufactured by Dumbbell Co., Ltd.) to prepare a test piece, which was in a state for 24 hours at a temperature of 23 ° C and a relative humidity of 50%. After adjustment, peeling between the surface layer film (b) and the core layer film (a) in the 180 ° direction at a tensile speed of 300 mm / min with a tensile tester Strograph R-3 (trade name, manufactured by Toyo Seiki Seisakusho Co., Ltd.) The intensity was measured (average value of n = 5). Moreover, the mending tape was affixed on the surface layer film (b) and peeled off at a stretch, the state of the base material was observed, and judged according to the following criteria.
○: Delamination strength is 70 g / cm or more, and there is no surface layer lifting or peeling by tape peeling test (satisfaction of practicality)
X: Delamination strength is less than 70 g / cm, and surface peeling and surface destruction are observed by tape peeling test (unsatisfactory for practical use)
（２）プリント品質
昇華型熱転写カラープリンターＥａｓｙ Ｓｈａｒｅ ｐｒｉｎｔｅｒ ｄｏｃｋ（商品名、ＫＯＤＡＫ製）を用いて、各色の単色及び重ね色の画像を印刷した。印刷したものを目視で画像濃度、均一性、画像ドット抜けについて評価し、下記の基準で判定した。
○：画像が鮮明で階調性に優れ、画像ドット抜けがないもの（実用性満足）
×：画像が不鮮明で階調性に劣り、部分的に画像ドット抜けが発生しているもの（実
用性不満足）
(2) Print quality Using a sublimation thermal transfer color printer Easy Share printer dock (trade name, manufactured by KODAK), images of single colors and superimposed colors were printed. The printed matter was visually evaluated for image density, uniformity, and image dot omission, and judged according to the following criteria.
○: A clear image with excellent gradation and no missing image dots (satisfying practicality)
×: The image is unclear, inferior in gradation, and partially missing image dots (not practical)
実施例１
［樹脂組成物（Ａ）作成］
芯層フィルム用の樹脂組成物（Ａ）として、ｎ−ヘプタン不溶部を９６重量％含有するＭＦＲが２ｇ／１０ｍｉｎの結晶性ポリプロピレン粉末に、フェノール系酸化防止剤ＢＨＴを０．２重量％、ステアリン酸カルシウムを０．１重量％、軟化点１７２℃のジシクロペンタジエン石油樹脂（以下、ＤＣＰＤという）を１０重量％及び炭酸カルシウム（平均粒径１．０μｍ）を１０重量％、酸化チタン（平均粒径０．３μｍ）を５重量％の割合となるように添加し、それをヘンシェルミキサー（商品名）に投入し、混合攪拌した後に同方向回転型二軸押出機に供給し２４０℃で溶融混練してストランドとして押出し、これを冷却しカットしてペレット状の樹脂組成物（Ａ）を得た。
Example 1
[Resin composition (A) preparation]
As the resin composition (A) for the core layer film, a crystalline polypropylene powder containing 96% by weight of n-heptane insoluble part and having an MFR of 2 g / 10 min, 0.2% by weight of phenolic antioxidant BHT, and steer 0.1% by weight of calcium phosphate, 10% by weight of dicyclopentadiene petroleum resin (hereinafter referred to as DCPD) having a softening point of 172 ° C., 10% by weight of calcium carbonate (average particle size 1.0 μm), titanium oxide (average particle size) 0.3 μm) is added to a ratio of 5% by weight, added to a Henschel mixer (trade name), mixed and stirred, then supplied to a co-rotating twin screw extruder and melt kneaded at 240 ° C. And extruded as a strand, cooled and cut to obtain a pellet-shaped resin composition (A).
［樹脂組成物（Ｂ）作成］
積層フィルムの表層フィルム用樹脂組成物（Ｂ）として、ｎ−ヘプタン不溶部を９６重量％含有するＭＦＲ２ｇ／１０分の結晶性ポリプロピレン粉末に、フェノール系酸化防止剤ＢＨＴを０．２重量％、及びステアリン酸カルシウムを０．１重量％の割合となるように添加し、それをヘンシェルミキサー（商標）に投入し、混合攪拌した後、同方向回転型二軸押出機に供給し２４０℃で溶融混練してストランドとして押出し、これを冷却しカットしてペレット状の樹脂組成物（Ｂ）を得た。
[Preparation of resin composition (B)]
As a resin composition (B) for the surface film of the laminated film, MFR 2 g / 10 min crystalline polypropylene powder containing 96% by weight of n-heptane insoluble part, 0.2% by weight of phenolic antioxidant BHT, and Calcium stearate was added to a ratio of 0.1% by weight, added to a Henschel mixer (trademark), mixed and stirred, then fed to a co-rotating twin screw extruder and melt kneaded at 240 ° C. And extruded as a strand, cooled and cut to obtain a pellet-shaped resin composition (B).
［空洞含有積層延伸フィルム作成］
多層Ｔダイを備えた３種３層フィルム押出機（押出機は、口径６５ｍｍφ芯層用単軸押出機が１台、口径５０ｍｍφの表層用単軸押出機が２台）及びテンター法二軸延伸機を用いて、前記の樹脂組成物（Ａ）を芯層用押出機に、前記の樹脂組成物（Ｂ）を表層用単軸押出機に供給し、Ｔダイ温度２４０℃で溶融し共押出を行い、表面温度３０℃の鏡面冷却ロールで急冷して、表層／芯層／表層の構成の２種３層の未延伸積層フィルムを得た。
得られた未延伸フィルムを縦延伸機に導き加熱ロール間で１４０℃の温度で縦方向（ＭＤ）に５倍延伸し、次にテンター内温度１６０〜２１０℃で横方向（ＴＤ）に８倍延伸した後、巻取り、合計厚さが３８μｍ（芯層フィルム：２６μｍ、表層フィルム（各々）：６μｍ）の空洞含有フィルムサンプルを得た。このフィルムサンプルの層間剥離強度は１１２ｇ／ｃｍであった。
[Cavity-containing laminated stretched film creation]
Three-kind three-layer film extruder equipped with multilayer T-die (extruder has one single-axis extruder for 65 mmφ core layer and two single-axis extruders for surface layer with 50 mmφ diameter) and tenter method biaxial stretching The resin composition (A) is fed to a core layer extruder and the resin composition (B) is fed to a surface single screw extruder, and melted at a T-die temperature of 240 ° C. and coextruded. And quenched with a mirror-cooled roll having a surface temperature of 30 ° C. to obtain a two-layer / three-layer unstretched laminated film having a structure of surface layer / core layer / surface layer.
The obtained unstretched film is led to a longitudinal stretching machine and stretched 5 times in the machine direction (MD) at a temperature of 140 ° C. between heated rolls, and then 8 times in the transverse direction (TD) at a temperature in the tenter of 160 to 210 ° C. After stretching, the film was wound up to obtain a void-containing film sample having a total thickness of 38 μm (core layer film: 26 μm, surface layer film (each): 6 μm). The delamination strength of this film sample was 112 g / cm.
［評価試験］
このフィルムの両面に、４２ワット・分／ｍ２のコロナ処理を施し、片面にウレタン系接着剤を用いて上質紙（厚さ：１４０μｍ）を貼り合わせて積層した後、他方の面にトルエン／メチルエチルケトン＝５０／５０（重量比）の混合溶剤７５重量％、ポリエステル樹脂バイロン２００（商品名、東洋紡績（株）製）２４重量％、及びアミノ変性シリコーンＦＭ−３３２１（商品名、チッソ（株）製）１重量％の混合物からなる画像受容層形成剤を塗布し、１２０℃で１分間乾燥し、乾燥重量が８ｇ／ｍ２で塗膜厚さが６μｍの画像受容層を形成して昇華型熱転写受像体（厚さ：１８６μｍ）を作成し、４０℃で２４時間状態調節した後、プリント品質を評価した。評価結果を表１に示した。
[Evaluation test]
Both sides of this film were subjected to a corona treatment of 42 watts / min / m 2 , and a high-quality paper (thickness: 140 μm) was laminated on one side using a urethane adhesive, and then laminated on the other side with toluene / 75% by weight of mixed solvent of methyl ethyl ketone = 50/50 (weight ratio), 24% by weight of polyester resin Byron 200 (trade name, manufactured by Toyobo Co., Ltd.), and amino-modified silicone FM-3321 (trade name, Chisso Corporation) Manufactured) A 1% by weight image-receiving layer forming agent was applied and dried at 120 ° C. for 1 minute to form an image-receiving layer having a dry weight of 8 g / m 2 and a coating thickness of 6 μm. A thermal transfer image receptor (thickness: 186 μm) was prepared and conditioned for 24 hours at 40 ° C. and then evaluated for print quality. The evaluation results are shown in Table 1.
実施例２、３
樹脂組成物（Ａ）のＤＣＰＤと炭酸カルシウムを表１の樹脂組成物（Ａ）の変動組成のように変更した以外は実施例１に準拠して昇華型熱転写受像体を作成した。評価結果を表１に示した。
Examples 2 and 3
A sublimation type thermal transfer image receptor was prepared in accordance with Example 1 except that the DCPD and calcium carbonate of the resin composition (A) were changed as shown in the variable composition of the resin composition (A) in Table 1. The evaluation results are shown in Table 1.
実施例４、５
樹脂組成物（Ｂ）の表層フィルムと芯層フィルムの厚さを表１の樹脂組成物（Ａ）の変動組成のように変更した以外は実施例１に準拠して昇華型熱転写受像体を作成した。評価結果を表１に示した。
Examples 4 and 5
A sublimation type thermal transfer image receptor is prepared in accordance with Example 1 except that the thicknesses of the surface layer film and the core layer film of the resin composition (B) are changed as in the variable composition of the resin composition (A) in Table 1. did. The evaluation results are shown in Table 1.
比較例１、２
樹脂組成物（Ａ）のＤＣＰＤと炭酸カルシウムを表１の樹脂組成物（Ａ）の変動組成のように変更した以外は実施例１に準拠して昇華型熱転写受像体を作成した。評価結果を表１に示した。
Comparative Examples 1 and 2
A sublimation type thermal transfer image receptor was prepared in accordance with Example 1 except that the DCPD and calcium carbonate of the resin composition (A) were changed as shown in the variable composition of the resin composition (A) in Table 1. The evaluation results are shown in Table 1.
比較例３
樹脂組成物（Ａ）のＤＣＰＤと炭酸カルシウムを表１の樹脂組成物（Ａ）の変動組成のように変更した以外は実施例１に準拠して昇華型熱転写受像体を作成した。評価結果を表１に示した。
Comparative Example 3
A sublimation type thermal transfer image receptor was prepared in accordance with Example 1 except that the DCPD and calcium carbonate of the resin composition (A) were changed as shown in the variable composition of the resin composition (A) in Table 1. The evaluation results are shown in Table 1.
比較例４
樹脂組成物（Ｂ）の表層フィルムと芯層フィルムの厚さを表１のように変更した以外は実施例１に準拠して昇華型熱転写受像体を作成した。評価結果を表１に示した。
Comparative Example 4
A sublimation thermal transfer image receptor was prepared according to Example 1 except that the thicknesses of the surface layer film and the core layer film of the resin composition (B) were changed as shown in Table 1. The evaluation results are shown in Table 1.
表１から明らかなように、本発明の昇華型熱転写受像体を使用して、昇華型熱転写プリンターで印刷を行うと、高画質な画像が得られ、なおかつ層間剥離強度が強く、剥がれやシワが入りにくい。また基材として紙との積層体を用いた昇華型熱転写受像体は印画紙の代替として使用するのに好適である。 As is clear from Table 1, when the sublimation type thermal transfer image receptor of the present invention is used for printing with a sublimation type thermal transfer printer, a high-quality image is obtained, and the delamination strength is strong, and peeling and wrinkles are not observed. Hard to enter. A sublimation thermal transfer image receiver using a laminate with paper as a substrate is suitable for use as an alternative to photographic paper.
昇華型熱転写プリンター用の印刷媒体として利用できる。 It can be used as a printing medium for a sublimation thermal transfer printer.
Claims (6)
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| JP2005176141A JP2006347001A (en) | 2005-06-16 | 2005-06-16 | Sublimable thermal transfer image receptor |
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| JP2005176141A JP2006347001A (en) | 2005-06-16 | 2005-06-16 | Sublimable thermal transfer image receptor |
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| CN108621624A (en) * | 2017-03-21 | 2018-10-09 | 丰田合成株式会社 | Hot transfer piece, the method and decorated articles for preparing decorated articles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108621624A (en) * | 2017-03-21 | 2018-10-09 | 丰田合成株式会社 | Hot transfer piece, the method and decorated articles for preparing decorated articles |
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