JP7035564B2 - Method for manufacturing a thermal transfer image receiving sheet and a thermal transfer image receiving sheet - Google Patents

Method for manufacturing a thermal transfer image receiving sheet and a thermal transfer image receiving sheet Download PDF

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JP7035564B2
JP7035564B2 JP2018012397A JP2018012397A JP7035564B2 JP 7035564 B2 JP7035564 B2 JP 7035564B2 JP 2018012397 A JP2018012397 A JP 2018012397A JP 2018012397 A JP2018012397 A JP 2018012397A JP 7035564 B2 JP7035564 B2 JP 7035564B2
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thermal transfer
transfer image
receiving sheet
image receiving
layer
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JP2019130680A (en
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瞳 田中
靖方 小野
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Toppan Inc
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本発明は、昇華性染料の熱転写により画像が形成される熱転写受像シートにおいて、端辺に余白を生じることなく、かつコゲ等の画像ムラを生じることなく全面に均一な画像を形成させた出力物を容易に得ることができる熱転写受像シートに関する。 INDUSTRIAL APPLICABILITY The present invention is an output product in which a uniform image is formed on the entire surface of a thermal transfer image receiving sheet in which an image is formed by thermal transfer of a sublimation dye, without causing margins at the edges and without causing image unevenness such as kogation. The present invention relates to a thermal transfer image receiving sheet that can be easily obtained.

熱転写方式を用いて熱転写記録媒体から熱転写受像シートに色材を転写し、文字や画像を形成することが広く行われている。熱転写方式として、昇華型熱転写方式と溶融型熱転写方式が知られている。このうち昇華型熱転写方式は、色材として昇華性染料を用い、サーマルヘッド等の発熱体を用いて、熱転写記録媒体に形成された昇華性染料層中の染料を熱転写受像シートに転写させて画像を形成するものである。 It is widely practiced to transfer a color material from a thermal transfer recording medium to a thermal transfer image receiving sheet by using a thermal transfer method to form characters and images. As a thermal transfer method, a sublimation type thermal transfer method and a melt type thermal transfer method are known. Of these, the sublimation type thermal transfer method uses a sublimation dye as a coloring material, and uses a heating element such as a thermal head to transfer the dye in the sublimation dye layer formed on the thermal transfer recording medium to an image transfer image sheet. Is what forms.

現在、熱転写方式の中でも昇華型熱転写方式は、プリンタの高機能化と合わせて各種画像を簡便にフルカラー形成できるため、デジタルカメラのセルフプリント、身分証明書などのカード類、アミューズメント用出力物等、広く利用されている。そういった用途の多様化と共に、小型化、高速化、低コスト化の市場要求が高まっており、さらに製造時の環境負荷を低減したいわゆるエコプロダクツが近年特に注目を集めており、市場における購入の動機付けのひとつとなっている。 Currently, among the thermal transfer methods, the sublimation thermal transfer method can easily form various images in full color in combination with the high functionality of the printer, so self-printing of digital cameras, cards such as identification cards, output materials for amusement, etc. Widely used. With the diversification of such applications, the market demand for miniaturization, high speed, and low cost is increasing, and so-called eco-products that reduce the environmental load during manufacturing have attracted particular attention in recent years, and the motivation for purchasing in the market. It is one of the attachments.

この昇華型熱転写方式に適用される熱転写受像シートは、受像シート基材の表面に昇華性染料を受容する染料受容層を設けて構成されるものである。前記昇華性染料は熱転写記録媒体から染料受像層に移行して染着し、この染料受容層にフルカラーの前記画像が形成される。なお、基材と染料受容層との間に各種の層を形成した熱転写受像シートも知られている。例えば、断熱層や下引き層である。 The thermal transfer image receiving sheet applied to this sublimation type thermal transfer method is configured by providing a dye receiving layer for receiving a sublimation dye on the surface of the image receiving sheet base material. The sublimable dye moves from the thermal transfer recording medium to the dye image receiving layer and is dyed, and the full-color image is formed on the dye receiving layer. In addition, a thermal transfer image receiving sheet in which various layers are formed between a base material and a dye receiving layer is also known. For example, a heat insulating layer or an undercoat layer.

ところで、プリンタの小型化への要求に対応して、ロール状ではなく枚葉の熱転写受像シートを用いるシステムが知られている。小型化への要求と、従来の写真プリントのように端辺に余白がないとの要求を両立させるため、画像形成後に余白を切断する方法が挙げられる。プリンタに切断装置を設けることはプリンタの大型化、煩雑化、高コスト化につながるため、余白の切断方法として枚葉型の熱転写受像シートの端部にあらかじめにミシン目を設ける方法が挙げられる。ミシン目をまたぐ形で画像形成し、その後ミシン目から端部を切り離すことで、余白がなく全面に画像形成したプリントを得ることが出来る(特許文献1)。 By the way, in response to the demand for miniaturization of printers, a system using a single-wafer thermal transfer image receiving sheet instead of a roll shape is known. In order to achieve both the demand for miniaturization and the demand for no margins at the edges as in conventional photographic prints, there is a method of cutting margins after image formation. Providing a cutting device in the printer leads to an increase in size, complexity, and cost of the printer. Therefore, as a method for cutting the margin, a method of preliminarily providing a perforation at the end of the sheet-fed thermal transfer image receiving sheet can be mentioned. By forming an image across the perforations and then separating the edges from the perforations, it is possible to obtain a print in which the image is formed on the entire surface without margins (Patent Document 1).

近年、正方形の熱転写受像シートが着目されている。作成方法は、ロール状の熱転写受像シートを用いて印画後、正方形になるようミシン目を事前に入れておく。そして印画後、長方形の熱転写受像シートをミシン目で切り離し、正方形を形成している。 In recent years, a square thermal transfer image receiving sheet has attracted attention. As for the production method, after printing using a roll-shaped thermal transfer image receiving sheet, perforations are made in advance so as to form a square. After printing, the rectangular thermal transfer image receiving sheet is cut off at the perforations to form a square.

特開2002-274061号公報Japanese Patent Application Laid-Open No. 2002-274061 特許第6146556号公報Japanese Patent No. 6146556

熱転写受像シートをミシン目で切り離す際、ミシン目曲げ剛さが強すぎると上手く切り離せず、紙に積層されたフィルムなどが剥がされてしまった。逆にミシン目曲げ剛さが弱
すぎると印画時、ミシン目が折れ曲がるためプリンタ内部で紙詰まりや印画不良を起こしていた。
When separating the thermal transfer image receiving sheet at the perforations, if the perforation bending rigidity was too strong, it could not be separated well, and the film laminated on the paper was peeled off. On the other hand, if the perforation bending rigidity is too weak, the perforations will bend during printing, causing paper jams and printing defects inside the printer.

また、先願の特許文献2の範囲では、ミシン目折れ強度が強すぎることにより、ミシン目に沿って切り離す際に、特に熱転写受像シートの背面に背面層や樹脂フィルム層などの樹脂からなる層を有する場合などにおいて、樹脂からなる層が剥がれてしまう場合があった。 Further, in the scope of Patent Document 2 of the prior application, since the perforation bending strength is too strong, a layer made of a resin such as a back surface layer or a resin film layer is particularly formed on the back surface of the heat transfer image receiving sheet when the perforations are separated along the perforations. In some cases, such as when the resin is used, the layer made of the resin may be peeled off.

さらにミシン目形成時に、ミシン刃が、高硬度かつ平坦な保持台に接触すると高価なミシン刃が摩耗して刃先がつぶれてしまう不具合が発生していた。そのためミシン目は、その形成時に、ミシン刃が保持台に接触しないよう注意する必要があった。 Further, when the sewing machine blade comes into contact with a high-hardness and flat holding table during perforation formation, the expensive sewing machine blade is worn and the cutting edge is crushed. Therefore, it is necessary to be careful that the perforation blade does not come into contact with the holding table at the time of forming the perforation.

形成されるミシン目は、その穿孔深さが熱転写受像シートの総厚に対して50~100%の範囲とすることで不具合なくミシン目を切り離すことができることが判った。 It was found that the perforations formed can be separated without any problem by setting the perforation depth in the range of 50 to 100% with respect to the total thickness of the thermal transfer image receiving sheet.

したがって、上記課題を解決するために、本発明の目的は、熱転写受像シートに適切な形状のミシン目加工を施すことにより、切り離す際、積層フィルムの剥がれや印画不良が発生せず画像品質の優れた熱転写受像シートを提供することにある。 Therefore, in order to solve the above problems, an object of the present invention is to perform perforation processing of an appropriate shape on the thermal transfer image receiving sheet, so that when the thermal transfer image receiving sheet is separated, the laminated film does not peel off or the printing defect does not occur, and the image quality is excellent. The purpose is to provide a thermal transfer image receiving sheet.

本発明は鋭意検討した結果、熱転写受像シート状に設けるミシン目の曲げ剛さ及びミシン目の穿孔深さ範囲を適切に規定することにより上記課題を解決できることを見出し、本発明を完成するに至った。 As a result of diligent studies, the present invention has found that the above problems can be solved by appropriately defining the bending rigidity of the perforations provided on the heat transfer image receiving sheet and the perforation depth range of the perforations, and completed the present invention. rice field.

請求項1に記載の発明は、少なくとも基材と、前記基材の一方の面に染料受容層と、前記基材の他方の面に樹脂層とを有する熱転写受像シートであって、
熱転写受像シートには、染料受容層側から、前記熱転写受像シートの曲げ折り可能、かつ切り取り可能なミシン目を設けており、該ミシン目の穿孔深さが、前記熱転写受像シート
の総厚に対する比率において、50~100%であり、前記比率に応じて、前記ミシン目に沿った曲げ剛さの最大抵抗値が、0.2~0.45N/cmであることを特徴とする熱転写受像シートである。
The invention according to claim 1 is a thermal transfer image receiving sheet having at least a base material, a dye receiving layer on one surface of the base material, and a resin layer on the other surface of the base material.
The thermal transfer image receiving sheet is provided with perforations that can be bent and folded and can be cut off from the dye receiving layer side, and the perforation depth of the perforations is the ratio of the perforation depth to the total thickness of the thermal transfer image receiving sheet. In the thermal transfer image receiving sheet, the maximum resistance value of the bending rigidity along the perforation is 0.2 to 0.45 N / cm , depending on the ratio, which is 50 to 100%. be.

次に、請求項2に記載の発明は、前記ミシン目が前記熱転写受像シートの印画方向に対して同一方向または該印画方向に対して交差方向、あるいはその両方に延伸されてなることを特徴とする請求項1に記載の熱転写受像シートである。 Next, the invention according to claim 2 is characterized in that the perforations are stretched in the same direction with respect to the printing direction of the heat transfer image receiving sheet, in the intersecting direction with respect to the printing direction, or both. The thermal transfer image receiving sheet according to claim 1.

請求項3に記載の発明は、前記基材が、ウェブ状またはロール状に巻き取られた基材、あるいは枚葉状の基材であることを特徴とする請求項1または請求項2に記載の熱転写受像シートである。 The invention according to claim 3 is the invention according to claim 1 or 2, wherein the base material is a base material wound in a web shape or a roll shape, or a single-leaf-shaped base material. It is a thermal transfer image receiving sheet.

請求項4に記載の発明は、少なくとも基材と、該基材の一方の面に染料受容層と、前記基材の他方の面に樹脂層とを有する熱転写受像シートに対し、前記熱転写受像シートを曲げ折り可能にし、かつ切り取り可能とするためのミシン目を、前記熱転写受像シートの染料受容層側から、設ける方法であって、前記熱転写受像シートに対し、前記ミシン目を形成するためのミシン刃を入れる際に、前記ミシン刃の刃先を前記熱転写受像シートの総厚に対して、50~100%の深さまで入れることを特徴とする熱転写受像シートの製造方法である。 The invention according to claim 4 relates to the thermal transfer image receiving sheet having at least a base material, a dye receiving layer on one surface of the base material, and a resin layer on the other surface of the base material. This is a method of providing a perforation for making the thermal transfer image sheet bendable and foldable from the dye receiving layer side of the thermal transfer image receiving sheet, and is a method for forming the perforation with respect to the thermal transfer image receiving sheet. It is a method for manufacturing a thermal transfer image receiving sheet, characterized in that when the blade is inserted, the cutting edge of the sewing machine blade is inserted to a depth of 50 to 100% with respect to the total thickness of the thermal transfer image receiving sheet.

後述する実施例及び比較例から判るように、ミシン目曲げ剛さが0.2~0.45N/
cmの範囲にすることで印刷不良および積層体の剥がれがない熱転写受像シートを提供する。
As can be seen from the examples and comparative examples described later, the perforation bending rigidity is 0.2 to 0.45 N /.
By setting it in the range of cm, a thermal transfer image receiving sheet without printing defects and peeling of the laminated body is provided.

本発明の実施形態に係る熱転写受像シートの一例を示す断面図である。It is sectional drawing which shows an example of the thermal transfer image receiving sheet which concerns on embodiment of this invention. 本発明の実施形態に係る熱転写受像シートのミシン刃の穿孔深さを示す図である。It is a figure which shows the drilling depth of the sewing machine blade of the thermal transfer image receiving sheet which concerns on embodiment of this invention. 本発明の実施形態に係る熱転写受像シートのミシン目の例を示す図である。(A)シート状熱転写受像シートで、印刷方向に対して交差方向(B)ロール状熱転写受像シートで、印刷方向に対して同一方向It is a figure which shows the example of the perforation of the thermal transfer image receiving sheet which concerns on embodiment of this invention. (A) Sheet-shaped thermal transfer image receiving sheet in the crossing direction with respect to the printing direction (B) Roll-shaped thermal transfer image receiving sheet in the same direction with respect to the printing direction.

以下に、本発明の実施の形態について詳細に説明する。以下の説明において適宜図面を参照するが、図面に記載された態様は本発明の例示であり、本発明はこれらの図面に記載された態様に制限されない。 Hereinafter, embodiments of the present invention will be described in detail. Although the drawings are appropriately referred to in the following description, the embodiments described in the drawings are examples of the present invention, and the present invention is not limited to the embodiments described in these drawings.

尚、同様又は類似した機能を発揮する構成要素には全て図面を通じて同一の参照符号を附し、重複する説明は省略する。 All the components exhibiting the same or similar functions are designated by the same reference numerals throughout the drawings, and duplicate description will be omitted.

本発明に係る熱転写受像シートは、基材と染料受容層とを必須の構成要素とするものである。このほか、他の層を有していても良いが、染料受容層は熱転写受像シートの表面に位置して、熱転写記録媒体から移行する昇華性染料を受容して染料が染着できる必要がある。基材と染料受容層との間に位置する他の層としては、例えば、断熱層、緩衝層、下引き層などが例示できる。 The thermal transfer image receiving sheet according to the present invention has a base material and a dye receiving layer as essential components. In addition, although it may have another layer, the dye receiving layer must be located on the surface of the thermal transfer image receiving sheet to receive the sublimation dye transferred from the thermal transfer recording medium and dye the dye. .. Examples of other layers located between the base material and the dye receiving layer include a heat insulating layer, a cushioning layer, and an undercoat layer.

図1では、熱転写受像シート(1)の構成例として、基材(2)の一方の面に、接着層(3)を介して、断熱層(4)、下引き層(5)、染料受容層(6)が形成され、他方の面には、樹脂層(7)として、背面層が形成されている例を示している。 In FIG. 1, as a configuration example of the thermal transfer image receiving sheet (1), a heat insulating layer (4), an undercoat layer (5), and a dye are received on one surface of the base material (2) via an adhesive layer (3). An example is shown in which the layer (6) is formed and the back surface layer is formed as the resin layer (7) on the other surface.

(基材)
基材(2)としては、公知のものを使用することができる。例えば、ポリエチレンテレフタレート(PET)やポリエチレンナフタレート(PEN)等のポリエステル、ポリプロピレン等のポリオレフィン、ポリ塩化ビニル、ポリカーボネート、ポリビニルアルコール、ポリスチレン、ポリアミド等の合成樹脂のフィルムや上質紙、中質紙、コート紙、アート紙、樹脂ラミネート紙、レジンコート紙等の紙類等が挙げられる。
(Base material)
As the base material (2), a known one can be used. For example, polyesters such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyolefins such as polypropylene, synthetic resin films such as polyvinyl chloride, polycarbonate, polyvinyl alcohol, polystyrene, and polyamide, high-quality paper, medium-quality paper, and coats. Examples thereof include paper such as paper, art paper, resin laminated paper, and resin coated paper.

上述のような樹脂フィルムおよび紙類は、単独で用いられてもよいし、両者が組み合わされた複合体が基材とされても良い。とりわけ、セルロース繊維紙の表裏をポリエチレンやポリプロピレン樹脂で被覆したレジンコート紙は白色度、光沢度に優れるため好適に用いられる。 The resin film and paper as described above may be used alone, or a composite of both may be used as a base material. In particular, resin-coated paper in which the front and back surfaces of cellulose fiber paper are coated with polyethylene or polypropylene resin is preferably used because it has excellent whiteness and glossiness.

基材の厚さについては、印画物としてのコシ、強度や耐熱性等を考慮すると、25マイクロメートル(μm)以上、250μm以下の範囲であるものが好ましい。より好ましくは、50μm以上200μm以下程度の厚さが好ましい。 The thickness of the base material is preferably in the range of 25 micrometers (μm) or more and 250 μm or less in consideration of the stiffness as a printed matter, strength, heat resistance, and the like. More preferably, the thickness is about 50 μm or more and 200 μm or less.

(接着層)
接着層(3)は、基材(2)に対して断熱層(4)などを接着するためのもので、必ずしも設置されている必要はないが、設けることにより熱転写受像シート(1)の層間密着性を向上させることができる。
(Adhesive layer)
The adhesive layer (3) is for adhering the heat insulating layer (4) or the like to the base material (2), and is not necessarily installed, but by providing the adhesive layer (3) between layers of the thermal transfer image receiving sheet (1). Adhesion can be improved.

このような接着層(3)に用いられる材料としては、従来公知の樹脂や接着剤などが使用でき、例えば、ポリエチレン等のポリオレフィン系樹脂、ウレタン系樹脂、アクリル系樹脂、ポリエステル系樹脂、エポキシ系樹脂、フェノール系樹脂、酢酸ビニル系樹脂等を用いることができ、中でもポリオレフィン系樹脂、ウレタン系樹脂、アクリル系樹脂などが好ましく用いられる。 As the material used for such an adhesive layer (3), conventionally known resins and adhesives can be used. For example, a polyolefin resin such as polyethylene, a urethane resin, an acrylic resin, a polyester resin, and an epoxy resin can be used. Resins, phenolic resins, vinyl acetate resins and the like can be used, and among them, polyethylene resins, urethane resins, acrylic resins and the like are preferably used.

(断熱層)
断熱層(4)は、単層で設けられてあっても良いが、2層以上の多層構成として設けられてあっても良く、2層以上の多層構成の場合には、少なくともその一層が多数の空隙を有していることが望ましい。
(Insulation layer)
The heat insulating layer (4) may be provided as a single layer, or may be provided as a multi-layer structure of two or more layers, and in the case of a multi-layer structure of two or more layers, at least one layer thereof may be provided in large numbers. It is desirable to have a void.

断熱層(4)が、多数の空隙を有することにより、サーマルヘッドからの熱印加時の断熱性、およびクッション性等を熱転写受像シート(1)に付与することができる。 Since the heat insulating layer (4) has a large number of voids, it is possible to impart heat insulating properties, cushioning properties, and the like when heat is applied from the thermal head to the thermal transfer image receiving sheet (1).

このような多数の空隙を有する層に用いられる樹脂としては、特に限定されるものではなく、樹脂を従来公知の方法で、発泡させたものや、ボイドを形成したもの、あるいはバインダ樹脂に中空粒子を分散させたものなど、公知の樹脂材料を適宜選択することができる。中でも、断熱性とクッション性の観点からは、発泡ポリエステル樹脂や発泡ポリスチレン樹脂等が好ましく、発泡樹脂フィルムの片面あるいは両面にスキン層を設けた複合フィルムなどを例示することができる。 The resin used for the layer having such a large number of voids is not particularly limited, and the resin is foamed by a conventionally known method, a void is formed, or hollow particles are formed in a binder resin. A known resin material such as one in which is dispersed can be appropriately selected. Among them, from the viewpoint of heat insulating property and cushioning property, expanded polyester resin, expanded polystyrene resin and the like are preferable, and a composite film having a skin layer on one side or both sides of the foamed resin film can be exemplified.

断熱層(4)の厚さは、5μm以上80μm以下であれば良いが、20μm以上60μm以下程度がより好ましい。 The thickness of the heat insulating layer (4) may be 5 μm or more and 80 μm or less, but more preferably 20 μm or more and 60 μm or less.

(下引き層)
下引き層(5)は、染料受容層(6)と断熱層(4)との密着性を向上させたり、画像形成時の印画濃度を調整したりするために設けられる層である。
(Underlay layer)
The undercoat layer (5) is a layer provided for improving the adhesion between the dye receiving layer (6) and the heat insulating layer (4) and adjusting the printing density at the time of image formation.

下引き層(5)は、例えば、水系溶媒に水溶性樹脂や水溶性高分子を溶解あるいは分散した水系コーティング剤や水性エマルジョンなどのコーティング剤をコーティングする方法などによって形成することができる。 The undercoat layer (5) can be formed, for example, by a method of coating an aqueous coating agent such as an aqueous coating agent or an aqueous emulsion in which a water-soluble resin or a water-soluble polymer is dissolved or dispersed in an aqueous solvent.

水溶性樹脂または水溶性高分子を用いる場合の例としては、ポリビニルピロリドン、ポリビニルアルコール、ポリアクリル酸、ポリアクリル酸エステル、ポリアクリル酸エステル共重合体、ポリメタクリル酸などの水溶性のアクリル樹脂、ゼラチン、澱粉、カゼインおよびこれらの変性物などを例示することができる。 Examples of the case of using a water-soluble resin or a water-soluble polymer include polyvinylpyrrolidone, polyvinyl alcohol, polyacrylic acid, polyacrylic acid ester, polyacrylic acid ester copolymer, and water-soluble acrylic resin such as polymethacrylic acid. Examples thereof include gelatin, starch, casein and modified products thereof.

また、水性エマルジョンの例としては、ポリオレフィンエマルジョン、塩化ビニル樹脂エマルジョン、塩化ビニル-酢酸ビニル共重合樹脂エマルジョン、塩化ビニル-アクリル共重合樹脂エマルジョンなどの塩化ビニル系樹脂エマルジョン、アクリル系樹脂エマルジョン、ウレタン系樹脂エマルジョンなどを例示することができる。 Examples of aqueous emulsions include vinyl chloride resin emulsions such as polyolefin emulsions, vinyl chloride resin emulsions, vinyl chloride-vinyl acetate copolymer resin emulsions, and vinyl chloride-acrylic copolymer resin emulsions, acrylic resin emulsions, and urethane emulsions. A resin emulsion and the like can be exemplified.

下引き層(5)の厚さは、0.1μm以上3μm以下の範囲のものが使用可能であるが、より好ましくは、0.2μm以上1.0μm以下程度が良い。 The thickness of the undercoat layer (5) can be in the range of 0.1 μm or more and 3 μm or less, but more preferably 0.2 μm or more and 1.0 μm or less.

また、下引き層(5)は、必要に応じて、架橋剤や酸化防止剤、蛍光染料や、公知の添加剤を含有していても良い。 Further, the undercoat layer (5) may contain a cross-linking agent, an antioxidant, a fluorescent dye, or a known additive, if necessary.

(染料受容層)
染料受容層(6)としては、公知の各種バインダ樹脂を用いることができる。バインダ
樹脂の一例として、塩化ビニル-アクリル共重合体、塩化ビニル-酢酸ビニル共重合体、酢酸ビニル-アクリル共重合体、スチレン-アクリル共重合体、塩化ビニル-アクリル-エチレン共重合体、塩化ビニル-アクリル-スチレン共重合体等を挙げることができる。これらは単独で使用されても良いし、2種以上が混合されて使用されても良い。
(Dye receiving layer)
As the dye receiving layer (6), various known binder resins can be used. As an example of the binder resin, vinyl chloride-acrylic copolymer, vinyl chloride-vinyl acetate copolymer, vinyl acetate-acrylic copolymer, styrene-acrylic copolymer, vinyl chloride-acrylic-ethylene copolymer, vinyl chloride -Acrylic-styrene copolymer and the like can be mentioned. These may be used alone or in combination of two or more.

染料受容層(6)の厚さは、0.1μm以上10μm以下であれば良いが、0.2μm以上8μm以下程度がより好ましい。また、染料受容層3は、必要に応じて造膜助剤、離型剤、紫外線吸収剤、帯電防止剤、架橋剤、蛍光染料等の公知の各種添加剤を含有しても良い。 The thickness of the dye receiving layer (6) may be 0.1 μm or more and 10 μm or less, but more preferably 0.2 μm or more and 8 μm or less. Further, the dye receiving layer 3 may contain various known additives such as a film-forming auxiliary, a mold release agent, an ultraviolet absorber, an antistatic agent, a cross-linking agent, and a fluorescent dye, if necessary.

(樹脂層)
基材(2)の染料受容層(6)とは反対側の面上に設けられる樹脂層(7)としては、背面層を例示することができる。
(Resin layer)
As the resin layer (7) provided on the surface of the base material (2) opposite to the dye receiving layer (6), the back surface layer can be exemplified.

背面層(7)は、プリンタ搬送性向上や、染料受容層4とのブロッキング防止、印画前後の熱転写受像シートのカール防止のために設けられるものである。 The back surface layer (7) is provided for improving printer transportability, preventing blocking with the dye receiving layer 4, and preventing curling of the thermal transfer image receiving sheet before and after printing.

背面層(7)に用いられる材料としては、従来公知のものが使用でき、例えばポリエチレン樹脂やポリプロピレン樹脂等のポリオレフィン系樹脂、アクリル系樹脂、ポリカーボネート樹脂、ポリビニルアルコール樹脂、ポリビニルアセタール樹脂、ポリエステル系樹脂、ポリスチレン系樹脂、ポリアミド系樹脂等の樹脂を用いることができる。また、必要に応じてフィラーや帯電防止剤等の公知の添加剤を含有しても良い。 As the material used for the back layer (7), conventionally known materials can be used, for example, polyolefin resins such as polyethylene resin and polypropylene resin, acrylic resins, polycarbonate resins, polyvinyl alcohol resins, polyvinyl acetal resins, and polyester resins. , Polystyrene-based resin, polyamide-based resin and other resins can be used. Further, if necessary, a known additive such as a filler or an antistatic agent may be contained.

また、基材(2)と背面層(7)との間には、樹脂フィルム層が設けられてあっても良い。このような樹脂フィルム層は、熱転写時の熱圧に起因する搬送のズレを抑制するためのもので、基材(2)との強い密着性と耐熱性(特に寸法安定性や平滑性等)が要求される。 Further, a resin film layer may be provided between the base material (2) and the back surface layer (7). Such a resin film layer is for suppressing transport deviation due to thermal pressure during thermal transfer, and has strong adhesion and heat resistance (particularly dimensional stability, smoothness, etc.) to the substrate (2). Is required.

樹脂フィルム層に用いる材料としては、従来公知の材料をいずれも用いることができるが、例えば、ポリエチレンテレフタレート(PET)フィルムを用いた場合、紙基材との間に押出ラミネーターを用いてポリエチレンやポリプロピレン樹脂を300℃程度の高温で押出し、紙基材と溶融積層させることでグリップがより深く刺さる。またこの溶融押出しに際しては、基材(紙基材とポリエチレンまたはポリプロピレンとの積層体)との十分な剥離強度を保つために、PETフィルムとしては易接着処理もしくはコロナ処理されたものを用いることが好ましい。とりわけ易接着処理を施したPETフィルムは高い剥離強度を有するため好適に用いられる。 As the material used for the resin film layer, any conventionally known material can be used. For example, when a polyethylene terephthalate (PET) film is used, polyethylene or polypropylene is used between the paper base material and an extruded laminator. The grip is pierced deeper by extruding the resin at a high temperature of about 300 ° C. and melt-laminating it with a paper substrate. Further, in this melt extrusion, in order to maintain sufficient peel strength from the base material (a laminate of a paper base material and polyethylene or polypropylene), a PET film that has been easily adhered or corona-treated may be used. preferable. In particular, a PET film that has been subjected to an easy-adhesion treatment is preferably used because it has high peel strength.

また、樹脂フィルム層と、基材(2)との間あるいは背面層(7)との間には、接着層などが新たに設けられてあっても何ら問題ない。 Further, there is no problem even if an adhesive layer or the like is newly provided between the resin film layer and the base material (2) or the back surface layer (7).

(ミシン目加工)
上述のようにして得られた熱転写受像シート(1)には、ミシン目加工が施される。ミシン目(20)の加工方法は特に限定されるものではないが、台座の上に熱転写受像シートを載せ、ミシン刃を取り付けた型を上下させることでミシン目を形成する方法や、ロールシリンダーの幅手方向にミシン刃を取り付け、対面に接触するよう圧胴を取付け、熱転写受像シートをシリンダーと圧胴の間に搬送させることにより、ミシン目を形成する方法(いわゆる縦ミシン目加工)などを利用することができる。
(Perforation processing)
The thermal transfer image receiving sheet (1) obtained as described above is perforated. The processing method of the perforation (20) is not particularly limited, but a method of forming a perforation by placing a heat transfer image receiving sheet on a pedestal and raising and lowering a mold to which a perforation blade is attached, or a roll cylinder. A method of forming perforations (so-called vertical perforation processing) by attaching a sewing machine blade in the width direction, attaching an impression cylinder so that it comes into contact with each other, and transporting the heat transfer image receiving sheet between the cylinder and the impression cylinder. It can be used.

図2は、熱転写受像シート(1)に対して、ミシン目を形成する際のミシン刃(10)を入れる様子を示す図であり、熱転写受像シートの総厚(a)に対するミシン目の穿孔深
さ(b)が、50~100%の範囲であることが重要である。
FIG. 2 is a diagram showing a state in which a perforation blade (10) is inserted into a thermal transfer image receiving sheet (1) when forming a perforation, and is a perforation depth of the perforation with respect to the total thickness (a) of the thermal transfer image receiving sheet. It is important that (b) is in the range of 50 to 100%.

また、ミシン目におけるカット部とアンカット部との寸法や比率などは任意に設定することができるが、ミシン目(20)が形成された熱転写受像シート(1)をミシン目(20)に沿って折り曲げた際の曲げ剛さが、0.2~0.45N/cmの範囲にあることが重要である。 Further, the dimensions and ratios of the cut portion and the uncut portion at the perforations can be arbitrarily set, but the thermal transfer image receiving sheet (1) on which the perforations (20) are formed can be set along the perforations (20). It is important that the bending rigidity when bent is in the range of 0.2 to 0.45 N / cm.

熱転写受像シート(1)の総厚(a)に対するミシン目の穿孔深さ(b)の割合、ならびに、熱転写受像シート(1)に設けられたミシン目(20)に沿った曲げ剛さを、上述のように規定することにより、熱転写受像シート(1)に対して印画を行う際に、プリンタ内での搬送時に、ミシン目(20)部分で折り曲がることを抑制することができる。 The ratio of the perforation depth (b) to the total thickness (a) of the thermal transfer image receiving sheet (1) and the bending rigidity along the perforations (20) provided in the thermal transfer image receiving sheet (1). By defining as described above, when printing is performed on the thermal transfer image receiving sheet (1), it is possible to prevent bending at the perforation (20) portion during transportation in the printer.

その結果、搬送詰まりなどを引き起こすことが無く、印画不良の発生も抑えることができ、更には、印画終了後に、ミシン目(20)に沿って、熱転写受像シート(1)を切り離す際、一度の折りを入れるだけで、容易に切り離すことが可能となり、また樹脂からなる層(7)の剥がれや、切り口への残りなどを引き起こすこと無く、切り離すことが可能となる。 As a result, it is possible to suppress the occurrence of printing defects without causing transport clogging, and further, once the thermal transfer image receiving sheet (1) is separated along the perforation (20) after the printing is completed. It can be easily separated by simply folding it, and it can be separated without causing the layer (7) made of resin to peel off or remaining on the cut end.

ここで、ミシン目穿孔深さの割合は、ミシン目穿孔深さ(b)/熱転写受像シートの総厚(a)×100%の式で算出される。 Here, the ratio of the perforation depth is calculated by the formula: perforation depth (b) / total thickness (a) of the thermal transfer image receiving sheet × 100%.

また、上記曲げ剛さの測定は、曲げ剛さ測定機(例えば、(株)片山抜型製作所製)などを用いて、測定することができる。 Further, the bending rigidity can be measured by using a bending rigidity measuring machine (for example, manufactured by Katayama Draft Manufacturing Co., Ltd.) or the like.

図3には、上述の様なミシン目(20)を熱転写受像シート(1)に設けた様子を示している。 FIG. 3 shows how the perforations (20) as described above are provided on the thermal transfer image receiving sheet (1).

ミシン目(20)は、熱転写受像シート(1)の印画方向に対して、図3(A)のように同一方向に設けられている場合や、図3(B)のように交差方向に設けられている場合、さらには同一方向と交差方向の両方に設けられている場合などが考えられ、いずれの方向に設けられてあっても良い。 The perforations (20) are provided in the same direction as shown in FIG. 3A or in the intersecting direction as shown in FIG. 3B with respect to the printing direction of the thermal transfer image receiving sheet (1). In addition, it may be provided in both the same direction and the crossing direction, and may be provided in any direction.

以下に、本発明の各実施例および各比較例に用いた材料を示す。なお、文中で「部」とあるのは、特に断りのない限り質量基準であり、また、本発明は実施例に限定されるものではない。 The materials used in each Example and Comparative Examples of the present invention are shown below. The term "part" in the text is based on mass unless otherwise specified, and the present invention is not limited to the examples.

(実施例1)
基準として厚さ140μmの長尺の上質紙を使用し、溶融押出し法により背面層として厚さ30μmのポリエチレン樹脂層を形成した。
(Example 1)
A long high-quality paper having a thickness of 140 μm was used as a reference, and a polyethylene resin layer having a thickness of 30 μm was formed as a back layer by a melt extrusion method.

次に、基材のポリエチレン樹脂層側とは反対側の面と断熱層との間に、ポリエチレン樹脂を溶融押出しして厚さ15μmのポリエチレン樹脂層を形成し、サンドラミ方式にて前記基材と断熱層とを貼りあわせた。なお、断熱層としては、厚さ40μmの発泡ポリプロピレンフィルムの片面にスキン層を設けたものを使用し、そのスキン層を設けていない面に前記ポリエチレン樹脂を溶融押出しして貼り合わせた。 Next, the polyethylene resin is melt-extruded between the surface of the base material opposite to the polyethylene resin layer side and the heat insulating layer to form a polyethylene resin layer having a thickness of 15 μm. The heat insulating layer was pasted together. As the heat insulating layer, a foamed polypropylene film having a thickness of 40 μm provided with a skin layer on one side was used, and the polyethylene resin was melt-extruded and bonded to the surface without the skin layer.

次に、断熱層に、水性エマルジョンから成る下引き層塗布液を、乾燥後の厚みが0.5μmとなるように塗布、乾燥することで、下引き層を形成した。更にその下引き層の上に、水性エマルジョンから成る染料受容層塗布液を、乾燥後の厚みが3μmとなるように塗布、乾燥することで、染料受容層を形成した。下引き層塗布液の組成ならびに染料受容層塗布液の組成は次の通りである。 Next, the undercoat layer coating liquid composed of an aqueous emulsion was applied to the heat insulating layer so that the thickness after drying was 0.5 μm, and dried to form the undercoat layer. Further, a dye receiving layer coating liquid composed of an aqueous emulsion was applied onto the undercoat layer so as to have a thickness of 3 μm after drying, and dried to form a dye receiving layer. The composition of the undercoat layer coating liquid and the composition of the dye receiving layer coating liquid are as follows.

<下引き層塗布液>
ポリオレフィンエマルジョン 20.0部
(アローベースSB-1010、ユニチカ(株)製)
塩化ビニル共重合体エマルジョン 20.0部
(ビニブラン603、日信化学工業(株)製)
トリプロピレングリコールモノメチルエーテル 4.0部
純水 56.0部
<Undercoat layer coating liquid>
20.0 parts of polyolefin emulsion (Arrow Base SB-1010, manufactured by Unitika Ltd.)
20.0 parts of vinyl chloride copolymer emulsion (Viniblanc 603, manufactured by Nissin Chemical Industry Co., Ltd.)
Tripropylene glycol monomethyl ether 4.0 parts Pure water 56.0 parts

<染料受容層塗布液>
塩化ビニル共重合体エマルジョン 35.5部
(ビニブラン900、日信化学工業(株)製)
変性シリコーンオイル 1.5部
(X-22-3000T、信越化学工業(株)製)
純水 63.0部
<Dye receiving layer coating liquid>
35.5 parts of vinyl chloride copolymer emulsion (Viniblanc 900, manufactured by Nissin Chemical Industry Co., Ltd.)
1.5 parts of modified silicone oil (X-22-3000T, manufactured by Shin-Etsu Chemical Co., Ltd.)
63.0 parts of pure water

以上の長尺体である熱転写受像シートに対し、画像形成領域の搬送方向前後両端部であって、画像形成領域に含まれる位置に、カット部の長さが400μm、アンカット部の長さが120μmの繰り返しのミシン目が入るよう、ロータリー刃により、折って切り取り可能なミシン目を形成し、本発明の実施例1の熱転写受像シートを作製した。なお、ミシン目は熱転写受像シートの総厚に対して100%の深さになるよう形成した。 With respect to the above-mentioned long body, the heat transfer image receiving sheet has a cut portion having a length of 400 μm and an uncut portion having a length of 400 μm at positions included in the image forming region at both front and rear ends in the transport direction of the image forming region. A perforation that can be folded and cut was formed by a rotary blade so that a repetitive perforation of 120 μm could be inserted, and a heat transfer image receiving sheet according to Example 1 of the present invention was produced. The perforations were formed so as to have a depth of 100% with respect to the total thickness of the thermal transfer image receiving sheet.

<熱転写記録媒体の作製>
熱転写記録媒体の基材として、厚さ4.5μmの片面易接着処理付きポリエチレンテレフタレートフィルムを使用し、その非易接着処理面に下記組成の耐熱滑性層塗布液を、乾燥後の塗布量が1.0g/mとなるように塗布、乾燥し、耐熱滑性層付き基材を得た。
<Preparation of thermal transfer recording medium>
A polyethylene terephthalate film with a single-sided easy-adhesion treatment with a thickness of 4.5 μm is used as the base material of the thermal transfer recording medium, and the heat-resistant slip layer coating liquid having the following composition is applied to the non-easy-adhesion-treated surface, and the amount of application after drying is large. It was applied and dried to a concentration of 1.0 g / m 2 to obtain a substrate with a heat-resistant slipping layer.

次に、耐熱滑性層付き基材の易接着処理面に、下記組成のプライマー層を塗布し、続いて熱転写層塗布液を、乾燥後の塗布量が1.0g/mとなるように塗布、乾燥して熱転写層を形成し、熱転写記録媒体を得た。 Next, a primer layer having the following composition is applied to the easily adhesive-treated surface of the base material with a heat-resistant slipping layer, and then the thermal transfer layer coating liquid is applied so that the coating amount after drying is 1.0 g / m 2 . It was applied and dried to form a thermal transfer layer, and a thermal transfer recording medium was obtained.

<耐熱滑性層塗布液>
シリコーン系アクリルグラフトポリマー 50.0部
(US-350、東亜合成(株)製)
メチルエチルケトン 50.0部
<Heat-resistant slip layer coating liquid>
Silicone acrylic graft polymer 50.0 parts (US-350, manufactured by Toagosei Corporation)
Methyl ethyl ketone 50.0 parts

<プライマー層塗布液>
ポリビニルアルコール 2.5部
イロプロピルアルコール 30.0部
純水 67.5部
<Primer layer coating liquid>
Polyvinyl alcohol 2.5 parts Iropropyl alcohol 30.0 parts Pure water 67.5 parts

<熱転写層塗布液>
C.I.ソルベントブルー36 2.5部
C.I.ソルベントブルー63 2.5部
ポリビニルアセタール樹脂 5.0部
トルエン 45.0部
メチルエチルケトン 45.0部
<Thermal transfer layer coating liquid>
C. I. Solvent Blue 36 2.5 copies C.I. I. Solvent Blue 63 2.5 parts Polyvinyl acetal resin 5.0 parts Toluene 45.0 parts Methyl ethyl ketone 45.0 parts

(実施例2)
ミシン目は熱転写受像シートの総厚に対して、75%の深さとした以外は、実施例1と同様にして、実施例2の熱転写受像シートを作製した。
(Example 2)
The thermal transfer image receiving sheet of Example 2 was prepared in the same manner as in Example 1 except that the perforations were set to a depth of 75% with respect to the total thickness of the thermal transfer receiving sheet.

(実施例3)
ミシン目は熱転写受像シートの総厚に対して、50%の深さとした以外は、実施例1と同様にして、実施例3の熱転写受像シートを作製した。
(Example 3)
The thermal transfer image receiving sheet of Example 3 was prepared in the same manner as in Example 1 except that the perforations were set to a depth of 50% with respect to the total thickness of the thermal transfer receiving sheet.

(比較例1)
ミシン目は熱転写受像シートの総厚に対して、48%の深さとした以外は、実施例1と同様にして、比較例1の熱転写受像シートを作製した。
(Comparative Example 1)
The thermal transfer image receiving sheet of Comparative Example 1 was prepared in the same manner as in Example 1 except that the perforations were set to a depth of 48% with respect to the total thickness of the thermal transfer receiving sheet.

(比較例2)
ミシン目は熱転写受像シートの総厚に対して、35%の深さとした以外は、実施例1と同様にして、比較例2の熱転写受像シートを作製した。
(Comparative Example 2)
The thermal transfer image receiving sheet of Comparative Example 2 was prepared in the same manner as in Example 1 except that the perforations were set to a depth of 35% with respect to the total thickness of the thermal transfer receiving sheet.

(比較例3)
ミシン目は総厚に対して、105%の深さまでミシン刃を入れた以外は、実施例1と同様にして、比較例3の熱転写受像シートを作製した。
(Comparative Example 3)
The thermal transfer image receiving sheet of Comparative Example 3 was produced in the same manner as in Example 1 except that the perforations were inserted to a depth of 105% with respect to the total thickness.

<印画評価>
実施例1~3、比較例1~2の熱転写受像シートおよび熱転写記録媒体を使用して、熱転写受像シートにベタ画像を印画した後、曲げ剛さ強度を測定した。
○:紙詰まりなく印刷できた。
×:紙詰まり、印画不良が発生した。
<Evaluation of prints>
Using the thermal transfer image sheet and the thermal transfer recording medium of Examples 1 to 3 and Comparative Examples 1 and 2, a solid image was printed on the thermal transfer image sheet, and then the bending rigidity strength was measured.
◯: Printing was possible without paper jams.
X: Paper jam or imprint defect occurred.

<曲げ剛さ強度>
染料受容層側を表面に設置してミシン目の最大抵抗値を(株)片山抜型製作所製の曲げ剛さ測定機BST-150Mを用いて測定を行った。
<Bending strength>
The dye receiving layer side was placed on the surface, and the maximum resistance value of the perforation was measured using a bending rigidity measuring machine BST-150M manufactured by Katayama Draining Type Mfg. Co., Ltd.

<切り取り評価の基準>
切り取り評価は、以下の基準にて行った。○以上が実用上問題ないレベルである。
<Criteria for cutting evaluation>
The cut-out evaluation was performed according to the following criteria. ○ The above is a level where there is no problem in practical use.

また、印画物のミシン目を染料受容層または裏面に谷折りとなるよう一度折り、容易に切り取り可能であるか評価した。
○:一度折って、容易に切り取り可能である。
×:一度折って、切り取り可能であるが、切り口にフィルムなどが残っているか、
または、複数回折り曲げないと切り離すことができない。
In addition, the perforations of the printed matter were once folded so as to form a valley fold on the dye receiving layer or the back surface, and it was evaluated whether the perforations could be easily cut out.
◯: Can be easily cut by folding it once.
×: It is possible to fold it once and cut it, but is there any film left on the cut end?
Alternatively, it cannot be separated unless it is bent multiple times.

評価結果を以下の表1に示した。 The evaluation results are shown in Table 1 below.

Figure 0007035564000001
Figure 0007035564000001

実施例1,2,3からミシン目深さの割合が総厚に対して100~50%の割合の範囲で、曲げ剛さ強度0.2~0.45N/cmの範囲において、ミシン目切り取り評価、印画評価において不具合無く熱転写受像シートを作製することができた。 From Examples 1, 2 and 3, perforation cutting is performed in the range where the ratio of the perforation depth is 100 to 50% with respect to the total thickness and the bending rigidity strength is in the range of 0.2 to 0.45 N / cm. The thermal transfer image receiving sheet could be produced without any problems in the evaluation and the printing evaluation.

一方、比較例1、2のように、ミシン目深さが50%以下の場合や、曲げ剛さが強い場合、折って切り取り可能であるが、切り口にフィルムなどが残っているまたは複数回折り曲げないと切り離すことが出来なかった。 On the other hand, when the perforation depth is 50% or less or the bending rigidity is strong as in Comparative Examples 1 and 2, it can be folded and cut, but a film or the like remains at the cut end or multiple bending bends are made. I couldn't separate it without it.

比較例3の場合、曲げ剛さが低く、切り離し可能であったが、プリンタ内での紙詰まり及び印画不良が発生した。 In the case of Comparative Example 3, the bending rigidity was low and the printer could be separated, but a paper jam and a printing defect occurred in the printer.

1 熱転写受像シート
2 基材
3 接着層
4 断熱層
5 下引き層
6 染料受容層
7 樹脂層(背面層)
10 ミシン刃
20 ミシン目
a 熱転写受像シートの総厚
b ミシン目の穿孔深さ
1 Thermal transfer image receiving sheet 2 Base material 3 Adhesive layer 4 Insulation layer 5 Undercoat layer 6 Dye receiving layer 7 Resin layer (back layer)
10 Perforation blade 20 Perforation a Total thickness of thermal transfer image receiving sheet b Perforation depth of perforation

Claims (4)

少なくとも基材と、前記基材の一方の面に染料受容層と、前記基材の他方の面に樹脂層とを有する熱転写受像シートであって、
熱転写受像シートには、染料受容層側から、前記熱転写受像シートの曲げ折り可能、かつ切り取り可能なミシン目を設けており、該ミシン目の穿孔深さが、前記熱転写受像シートの総厚に対する比率において、50~100%であり、前記比率に応じて、前記ミシン目に沿った曲げ剛さの最大抵抗値が、0.2~0.45N/cmであることを特徴とする熱転写受像シート。
A thermal transfer image receiving sheet having at least a substrate, a dye receiving layer on one surface of the substrate, and a resin layer on the other surface of the substrate.
The thermal transfer image receiving sheet is provided with perforations that can be bent and folded and can be cut off from the dye receiving layer side, and the perforation depth of the perforations is the ratio of the perforation depth to the total thickness of the thermal transfer image receiving sheet. The thermal transfer image receiving sheet is 50 to 100%, and the maximum resistance value of the bending rigidity along the perforation is 0.2 to 0.45 N / cm depending on the ratio .
前記ミシン目が前記熱転写受像シートの印画方向に対して同一方向または該印画方向に対して交差方向、あるいはその両方に延伸されてなることを特徴とする請求項1に記載の熱転写受像シート。 The thermal transfer image receiving sheet according to claim 1, wherein the perforations are stretched in the same direction with respect to the printing direction of the thermal transfer image receiving sheet, or in an intersecting direction with respect to the printing direction, or both. 前記基材が、ウェブ状またはロール状に巻き取られた基材、あるいは枚葉状の基材であることを特徴とする請求項1または請求項2に記載の熱転写受像シート。 The thermal transfer image receiving sheet according to claim 1 or 2, wherein the base material is a base material wound in the form of a web or a roll, or a base material in the form of a single leaf. 少なくとも基材と、該基材の一方の面に染料受容層と、前記基材の他方の面に樹脂層とを有する熱転写受像シートに対し、前記熱転写受像シートを曲げ折り可能にし、かつ切り取り可能とするためのミシン目を、前記熱転写受像シートの染料受容層側から、設ける方法であって、
前記熱転写受像シートに対し、前記ミシン目を形成するためのミシン刃を入れる際に、前記ミシン刃の刃先を前記熱転写受像シートの総厚に対して、50~100%の深さまで入れることを特徴とする熱転写受像シートの製造方法。
The thermal transfer image receiving sheet can be bent and folded and cut off with respect to a thermal transfer image sheet having at least a substrate, a dye receiving layer on one surface of the substrate, and a resin layer on the other surface of the substrate. This is a method of providing perforations for the purpose from the dye receiving layer side of the thermal transfer image receiving sheet.
When inserting the sewing machine blade for forming the perforation into the thermal transfer image receiving sheet, the cutting edge of the sewing machine blade is inserted to a depth of 50 to 100% with respect to the total thickness of the thermal transfer image receiving sheet. A method for manufacturing a thermal transfer image receiving sheet.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001162953A (en) 1999-12-08 2001-06-19 Dainippon Printing Co Ltd Thermal transfer image receiving sheet, manufacturing method thereof and method for using the same
JP2006240179A (en) 2005-03-04 2006-09-14 Oji Paper Co Ltd Thermal transfer receptive sheet
WO2017056970A1 (en) 2015-09-30 2017-04-06 大日本印刷株式会社 Thermal transfer image receiving sheet

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Publication number Priority date Publication date Assignee Title
JPH10230684A (en) * 1996-12-19 1998-09-02 Sony Corp Thermal transfer photographic paper
JP2002274061A (en) * 2001-03-21 2002-09-25 Dainippon Printing Co Ltd Heat-transfer image receiving sheet and its manufacturing method
JP3082721U (en) * 2001-06-15 2001-12-26 株式会社アカディ Book case made of transparent plastic sheet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001162953A (en) 1999-12-08 2001-06-19 Dainippon Printing Co Ltd Thermal transfer image receiving sheet, manufacturing method thereof and method for using the same
JP2006240179A (en) 2005-03-04 2006-09-14 Oji Paper Co Ltd Thermal transfer receptive sheet
WO2017056970A1 (en) 2015-09-30 2017-04-06 大日本印刷株式会社 Thermal transfer image receiving sheet

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