JP3168371B2 - Thermal transfer sheet - Google Patents
Thermal transfer sheetInfo
- Publication number
- JP3168371B2 JP3168371B2 JP31583293A JP31583293A JP3168371B2 JP 3168371 B2 JP3168371 B2 JP 3168371B2 JP 31583293 A JP31583293 A JP 31583293A JP 31583293 A JP31583293 A JP 31583293A JP 3168371 B2 JP3168371 B2 JP 3168371B2
- Authority
- JP
- Japan
- Prior art keywords
- thermal transfer
- transfer sheet
- polyethylene
- parts
- xylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は熱転写プリンターで使用
される熱転写シートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal transfer sheet used in a thermal transfer printer.
【０００２】[0002]
【従来の技術】サーマルプリンターによる熱転写記録方
式は、コンパクトで、操作性、保守性に優れている事か
ら広く実用に供されている。産業用途としてファクトリ
ーオートメーションにおけるバーコード管理システムで
の利用分野が広がるにつれて、より高機能な特性が要望
されるようになり、従来の熱転写シートでは対応できな
くなってきた。例えば溶剤であるメチルエチルケトン、
トルエン、等の強溶剤に耐えるラベルが要望されている
が、これに対応できる熱転写シートは今だ存在していな
い。2. Description of the Related Art A thermal transfer recording system using a thermal printer has been widely put to practical use because of its compactness and excellent operability and maintainability. As the field of use of barcode management systems in factory automation for industrial applications has expanded, higher-performance characteristics have been demanded, and conventional thermal transfer sheets have become unable to respond. For example, methyl ethyl ketone as a solvent,
There is a demand for a label that can withstand a strong solvent such as toluene, but there is no thermal transfer sheet that can cope with this.
【０００３】[0003]
【発明が解決しようとする課題】本発明の熱転写シート
と被印字体であるラベルを重ね合わせ、サーマルプリン
ターで印字する事により、強溶剤であるメチルエチルケ
トンやトルエンの溶剤に耐える耐溶剤性に優れたラベル
を作ることができる熱転写シートを提供しようとするも
のである。The thermal transfer sheet of the present invention is superimposed on a label to be printed, and printed by a thermal printer, thereby exhibiting excellent solvent resistance to withstand strong solvents such as methyl ethyl ketone and toluene. An object of the present invention is to provide a thermal transfer sheet on which a label can be made.
【０００４】サーマルヘッドによる熱転写記録方式に於
ける感熱インクは軟化点が低い程ヘッドにかける負荷を
小さくすることができて好ましい。そこで本発明は熱転
写インクのバインダー成分として低軟化点であって、か
つ耐溶剤性に優れたポリエチレン樹脂を使用するもので
ある。しかしながら単にポリエチレン樹脂をインク層の
バインダーに使用したからといって耐溶剤性に優れた熱
転写シートが得られる訳ではない。熱転写フィルムシー
トを製造するには熱転写インク層をベースフイルムに薄
く塗工する事が必要である。[0004] The lower the softening point of the heat-sensitive ink in the thermal transfer recording system using a thermal head is, the smaller the load applied to the head is preferably reduced. Therefore, the present invention uses a polyethylene resin having a low softening point and excellent solvent resistance as a binder component of the thermal transfer ink. However, simply using a polyethylene resin as the binder for the ink layer does not mean that a thermal transfer sheet excellent in solvent resistance can be obtained. In order to manufacture a thermal transfer film sheet, it is necessary to apply a thin thermal transfer ink layer to a base film.
【０００５】熱転写シートを製造する塗工方式として
は、ワックスインクの一般的な塗工方式である溶媒を使
用せず加熱熔融したインクを塗工するホットメルトコー
ティング方式と樹脂型インクの塗工方式である溶媒を用
い溶解又は分散させた塗料を塗工する方式がある。しか
しながら、ホットメルトコーティング方式では本発明の
最低分子量である分子量２，０００のポリエチレン樹脂
から成るインクであっても熔融粘度が高すぎて薄膜にコ
ーティングするのは困難である。他の方法である溶剤塗
工方式に於いては、ポリエチレン樹脂が耐溶剤性に優れ
ている点が災いして、溶液にできる溶剤が無く、ポリエ
チレン樹脂の微粒子を分散させた分散液を塗料とするの
が一番適した方法である。しかしながら、この分散液を
単に塗工してもドット再現性が良く、被印字体であるラ
ベルの表面を汚さない良好な印字品質と十分な耐溶剤性
能をもったラベルを提供する熱転写シートを得る事はで
きない。[0005] As a coating method for producing a thermal transfer sheet, there are a hot-melt coating method in which a heated ink is coated without using a solvent, which is a general coating method of wax ink, and a resin-type ink coating method. There is a method of applying a paint dissolved or dispersed by using a solvent as described above. However, in the hot-melt coating method, it is difficult to coat a thin film because the melt viscosity is too high even with an ink comprising a polyethylene resin having a molecular weight of 2,000 which is the minimum molecular weight of the present invention. In the solvent coating method, which is another method, there is no solvent that can be made into a solution due to the fact that polyethylene resin has excellent solvent resistance, and a dispersion liquid in which fine particles of polyethylene resin are dispersed is used as a paint. Is the most appropriate method. However, even if this dispersion liquid is simply applied, a dot having good dot reproducibility, and a thermal transfer sheet which provides a label having good printing quality and sufficient solvent resistance that does not stain the surface of the label to be printed is obtained. I can't do things.
【０００６】[0006]
【課題を解決する為の手段】熱転写シートのベースフィ
ルムとしては、従来より公知のポリエチレンテレフタテ
ート等のポリエステルフイルム、ポリエーテルエーテル
ケトンフィルム、ポリイミドフィルム等の厚さ２．５〜
１２μのフィルムがあげられるが、なかんずく経済性を
鑑みると好適なフィルムはポリエステルフィルムであ
る。本発明の熱転写シートを構成する、メチルエチルケ
トン、トルエン、等の強溶剤に耐える熱転写インク層は
ポリエチレン樹脂と着色剤から構成される。ポリエチレ
ン樹脂は常温で溶ける溶剤は無く、熱トルエンや熱キシ
レンのように熱時にのみ溶ける。そして分子量が大きく
なるにつれて溶解温度を高くしなければ溶けない性質を
持っている。この性質ゆえにポリエチレン樹脂だけを考
えれば分子量が大きくなるほど耐溶剤性も向上するが、
熱転写インク層の場合には分子量が大きければよいと言
うものではなく、ポリエチレン樹脂の分子量は２，００
０以上であって１００℃のキシレンに溶解するものが好
適である。分子量が２，０００以下の場合には、分子量
が小さすぎて十分な耐溶剤性がでない。又逆に、分子量
が大きくなりすぎると熱トルエンや熱キシレンに完全に
溶解せず、不溶物を生じ好ましくない。Means for Solving the Problems As the base film of the thermal transfer sheet, a conventionally known polyester film such as polyethylene terephthalate, a polyether ether ketone film, a polyimide film, etc.
A 12 μm film can be mentioned, but a polyester film is particularly preferable in view of economy. The thermal transfer ink layer constituting the thermal transfer sheet of the present invention, which resists a strong solvent such as methyl ethyl ketone and toluene, is composed of a polyethylene resin and a colorant. Polyethylene resin has no solvent that dissolves at room temperature, and dissolves only when heated like hot toluene and hot xylene. And it has the property that it does not melt unless the dissolution temperature is raised as the molecular weight increases. Due to this property, considering polyethylene resin alone, the solvent resistance improves as the molecular weight increases,
In the case of the thermal transfer ink layer, it does not mean that the molecular weight should be large, and the molecular weight of the polyethylene resin is 2,000.
Those which are 0 or more and are soluble in xylene at 100 ° C. are preferred. When the molecular weight is 2,000 or less, the molecular weight is too small and sufficient solvent resistance is not obtained. Conversely, if the molecular weight is too large, it will not completely dissolve in hot toluene or hot xylene, and undesirably forms insolubles.
【０００７】さらに重要なことは本発明の熱転写インク
層を形成する塗料はトルエンやキシレンの溶媒中にポリ
エチレン樹脂の微粒子と着色剤である顔料が分散された
ものであるが、この塗料を一方の面にスティック防止層
を他方の面に転写調整層を設けたベースフィルムの転写
調整層の上に塗工し、溶剤の乾燥過程で熱時溶剤の力を
借りてポリエチレン樹脂の微粒子と着色剤の粒子とを結
着一体化する事により、耐溶剤性に優れ、かつ被印字体
であるラベルの表面を汚す、いわゆる”地汚れ”を起さ
ない熱転写インク層を得る事ができる。サーマルプリン
ターで印字されるとき熱転写インク層が熔融されるとは
いえ、これだけでは十分な耐溶剤性は発現せず、熱転写
シート状態で、既に熱転写インク層を結着一体化させる
事が必要不可欠な要件である。従って、熱転写インク層
を形成する塗料の溶媒としてはキシレンの方がトルエン
よりも好ましい、これはトルエンの沸点が１１０℃であ
り、キシレンの沸点が１４４℃とキシレンの方が沸点が
高く、溶剤を乾燥する過程でトルエンに比べて揮散し難
くポリエチレン微粒子を熱溶解し、結着一体化を進める
事ができるからである。ポリエチレン樹脂の密度（JIS
K6760)は非常に重要であり、密度が０．９５以上のポリ
エチレンでなければ良好な耐溶剤性を有する熱転写シー
トは得られない。着色剤としては溶剤に滲まないもので
あれば特に限定することなく使用することができる。More importantly, the paint for forming the thermal transfer ink layer of the present invention is a dispersion in which fine particles of a polyethylene resin and a pigment as a colorant are dispersed in a solvent such as toluene or xylene. The anti-stick layer is coated on the transfer control layer of the base film provided with the transfer control layer on the other side, and the fine particles of polyethylene resin and the colorant By binding and integrating the particles, it is possible to obtain a thermal transfer ink layer which is excellent in solvent resistance and does not cause the so-called "ground stain" which stains the surface of the label as the printing object. Although the thermal transfer ink layer is melted when printing with a thermal printer, this alone does not exhibit sufficient solvent resistance, and it is essential that the thermal transfer ink layer is already bonded and integrated in the thermal transfer sheet state Requirements. Therefore, xylene is more preferable than toluene as a solvent for the paint for forming the thermal transfer ink layer. This is because toluene has a boiling point of 110 ° C., xylene has a boiling point of 144 ° C., and xylene has a higher boiling point. This is because polyethylene particles are less likely to evaporate than toluene during the drying process, and the polyethylene fine particles can be dissolved by heat to promote binding and integration. Density of polyethylene resin (JIS
K6760) is very important, and a thermal transfer sheet having good solvent resistance cannot be obtained unless the polyethylene has a density of 0.95 or more. Any colorant can be used without particular limitation as long as it does not bleed into the solvent.
【０００８】転写調整層とはベースフイルムと熱転写イ
ンク層の接着力を制御して良好な印字品質を得るための
ものである。接着力が強すぎるとインクが被印字体に転
写せず、逆に接着力が弱すぎると不必要な部分にもイン
クが転写して印字品質を劣化させるからである。転写調
整層としては、エチレン酢ビ樹脂、アクリル樹脂、ポリ
アミド樹脂、ポリウレタン樹脂が使用できる。ベースフ
ィルムがポリエステルフィルムの場合には、溶剤可溶型
のポリエステル樹脂を用いることにより、ドット再現性
に優れた印字品質を得ることができる。The transfer adjusting layer is for controlling the adhesive force between the base film and the thermal transfer ink layer to obtain good printing quality. If the adhesive force is too strong, the ink will not be transferred to the printing medium, whereas if the adhesive force is too weak, the ink will be transferred to unnecessary portions and the print quality will be degraded. As the transfer adjustment layer, an ethylene vinyl acetate resin, an acrylic resin, a polyamide resin, or a polyurethane resin can be used. When the base film is a polyester film, printing quality excellent in dot reproducibility can be obtained by using a solvent-soluble polyester resin.
【０００９】被印字体であるラベル素材としては、ポリ
プロピレンシート、合成紙、ポリエチレンシート、硬質
塩ビシート等が適しているが、当然ながらポリエチレン
シートが最適である。以下、本発明を実施例によりさら
に詳細に説明する。尚、実施例において『部』及び
『％』とあるのは特に断らない限り重量部及び重量％を
示すものである。[0009] As a label material to be printed, a polypropylene sheet, a synthetic paper, a polyethylene sheet, a rigid PVC sheet or the like is suitable, but of course, a polyethylene sheet is most suitable. Hereinafter, the present invention will be described in more detail with reference to Examples. In the examples, "parts" and "%" indicate parts by weight and% by weight, respectively, unless otherwise specified.
【００１０】[0010]
【実施例１】ベースフイルムとして一方の面にスティッ
ク防止層を設けた６μｍのポリエステルフイルムの他方
の面に下記組成の転写調整層用塗料を１００μｍのワイ
ヤーを巻いたメイヤーバーで塗布し、１００℃で乾燥し
て乾燥塗膜が０．５μｍの転写調整層を得た。以後これ
をベースフイルムＡと言う。 〔転写調整用塗料組成〕 ポリエステル樹脂（東洋紡製バイロン２００） １０部 トルエン ７０部 メチルエチルケトン ２０部 熱転写インク層の塗料として、分子量２，０００で密度
０．９５のポリエチレン１５部をキシレン８５部に添加
し、これを１００℃に加熱して溶解させ、ついでこれを
冷却し、ポリエチレンの微粒子を析出させた。これに着
色剤としてカーボンのラーベン１２５５（コロンビアカ
ーボン製）を５部、キシレンを９５部添加し、均一に撹
拌混合した後、サンドミルで３０分間分散し、１０％濃
度の塗料を得た。この塗料を上記ベースフイルムＡの転
写調整層のうえに、８００μｍのワイヤーを巻いたメイ
ヤーバーで塗布し、１３０℃で２分間乾燥して乾燥厚さ
４μｍの熱転写インク層を有する熱転写シートを得た。
この熱転写シートとポリエチレンシートとを重ね合わ
せ、８ドット／ｍｍの解像度のサーマルプリンターで
０．５ｍｊ／ｄｏｔのエネルギーで印字し、ラベルを得
た。次いで、メチルエチルケトン（以下ＭＥＫと言う）
とトルエン（以下ＴＯＬと言う）で耐溶剤性を評価し
た。評価の方法は綿棒に溶剤を含浸させ、これに５００
ｇの荷重をかけて印字面を擦り、印字が消えるまでの回
数で評価した。その結果はＭＥＫでは５１往復でも以上
は認められなかったが、ＴＯＬでは３５往復で損傷が認
められた。Example 1 A 6 μm polyester film having a stick prevention layer provided on one surface as a base film was coated with a coating for a transfer adjusting layer having the following composition on the other surface using a 100 μm wire wound wire bar. To obtain a transfer control layer having a dry coating of 0.5 μm. Hereinafter this is referred to as base film A. [Transfer Adjustment Coating Composition] Polyester resin (Toyobo Byron 200) 10 parts Toluene 70 parts Methyl ethyl ketone 20 parts As a coating material for a thermal transfer ink layer, 15 parts of polyethylene having a molecular weight of 2,000 and a density of 0.95 was added to 85 parts of xylene. This was heated to 100 ° C. to dissolve it, and then cooled to precipitate polyethylene fine particles. To this, 5 parts of carbon raben 1255 (manufactured by Columbia Carbon) and 95 parts of xylene were added and uniformly stirred and mixed, and then dispersed with a sand mill for 30 minutes to obtain a 10% concentration paint. This paint was applied on the transfer adjustment layer of the base film A with a Mayer bar wound with an 800 μm wire and dried at 130 ° C. for 2 minutes to obtain a thermal transfer sheet having a thermal transfer ink layer with a dry thickness of 4 μm. .
The thermal transfer sheet and the polyethylene sheet were superimposed and printed with an energy of 0.5 mj / dot using a thermal printer having a resolution of 8 dots / mm to obtain a label. Then, methyl ethyl ketone (hereinafter referred to as MEK)
And toluene (hereinafter referred to as TOL) to evaluate the solvent resistance. The evaluation was performed by impregnating a cotton swab with a solvent,
The print surface was rubbed with a load of g, and the number of evaluations until the print disappeared was evaluated. As a result, no more than 51 reciprocations were observed in MEK, but damage was observed in 35 reciprocations in TOL.
【００１１】[0011]
【実施例２】熱転写インク層の塗料として、分子量４，
０００で密度０．９８のポリエチレン１５部をキシレン
８５部に添加し、これを１００℃に加熱して溶解させ、
ついでこれを冷却し、ポリエチレンの微粒子を析出させ
た。これに着色剤としてカーボンのラーベン１２５５
（コロンビアカーボン製）を５部、キシレンを９５部添
加し、均一に撹拌混合した後、サンドミルで３０分間分
散し、１０％濃度の塗料を得た。この塗料を上記ベース
フイルムＡの転写調整層のうえに、８００μｍのワイヤ
ーを巻いたメイヤーバーで塗布し、１３０℃で２分間乾
燥して乾燥厚さ４μｍの熱転写インク層を有する熱転写
シートを得た。この熱転写シートとポリエチレンシート
とを重ね合わせ、８ドット／ｍｍの解像度のサーマルプ
リンターで０．５ｍｊ／ｄｏｔのエネルギーで印字し、
ラベルを得た。次いで、耐溶剤性の評価を実施例１と同
様の方法で行った。その結果はＭＥＫ、ＴＯＬとも５１
往復でも損傷は認められなかった。Example 2 As a paint for the thermal transfer ink layer, a molecular weight of 4,
15 parts of polyethylene having a density of 0.98 at 000 are added to 85 parts of xylene, and this is heated to 100 ° C. to dissolve it,
Then, the mixture was cooled to precipitate polyethylene fine particles. In addition, carbon raben 1255 is used as a colorant.
(Colombia Carbon) (5 parts) and xylene (95 parts) were added and uniformly stirred and mixed, and then dispersed by a sand mill for 30 minutes to obtain a 10% concentration paint. This paint was applied on the transfer adjustment layer of the base film A with a Mayer bar wound with an 800 μm wire, and dried at 130 ° C. for 2 minutes to obtain a thermal transfer sheet having a thermal transfer ink layer with a dry thickness of 4 μm. . The thermal transfer sheet and the polyethylene sheet are overlapped and printed with a thermal printer having a resolution of 8 dots / mm at an energy of 0.5 mj / dot.
Got the label. Next, the solvent resistance was evaluated in the same manner as in Example 1. The result is 51 for both MEK and TOL.
No damage was found on the round trip.
【００１２】[0012]
【実施例３】熱転写インク層の塗料として、分子量８，
０００で密度０．９７のポリエチレン１５部をキシレン
８５部に添加し、これを１００℃に加熱して溶解させ、
ついでこれを冷却し、ポリエチレンの微粒子を析出させ
た。これに着色剤としてカーボンのラーベン１２５５
（コロンビアカーボン製）を５部、キシレンを９５部添
加し、均一に撹拌混合した後、サンドミルで３０分間分
散し、１０％濃度の塗料を得た。この塗料を上記ベース
フイルムＡの転写調整層のうえに、８００μｍのワイヤ
ーを巻いたメイヤーバーで塗布し、１３０℃で２分間乾
燥して乾燥厚さ４μｍの熱転写インク層を有する熱転写
シートを得た。この熱転写シートとポリエチレンシート
とを重ね合わせ、８ドット／ｍｍの解像度のサーマルプ
リンターで０．５ｍｊ／ｄｏｔのエネルギーで印字し、
ラベルを得た。次いで、耐溶剤性の評価を実施例１と同
様の方法で行った。その結果はＭＥＫ、ＴＯＬとも５１
往復でも損傷は認められなかった。Example 3 As a paint for the thermal transfer ink layer, a molecular weight of 8,
15 parts of polyethylene having a density of 0.97 at 000 are added to 85 parts of xylene, and this is heated to 100 ° C. to dissolve it.
Then, the mixture was cooled to precipitate polyethylene fine particles. In addition, carbon raben 1255 is used as a colorant.
(Colombia Carbon) (5 parts) and xylene (95 parts) were added and uniformly stirred and mixed, and then dispersed by a sand mill for 30 minutes to obtain a 10% concentration paint. This paint was applied on the transfer adjustment layer of the base film A with a Mayer bar wound with an 800 μm wire and dried at 130 ° C. for 2 minutes to obtain a thermal transfer sheet having a thermal transfer ink layer with a dry thickness of 4 μm. . The thermal transfer sheet and the polyethylene sheet are overlapped and printed with a thermal printer having a resolution of 8 dots / mm at an energy of 0.5 mj / dot.
Got the label. Next, the solvent resistance was evaluated in the same manner as in Example 1. The result is 51 for both MEK and TOL.
No damage was found on the round trip.
【００１３】[0013]
【実施例４】熱転写インク層の塗料として、分子量１
１，０００で密度０．９６のポリエチレン１５部をキシ
レン８５部に添加し、これを１００℃に加熱して溶解さ
せ、ついでこれを冷却し、ポリエチレンの微粒子を析出
させた。これに着色剤としてカーボンのラーベン１２５
５（コロンビアカーボン製）を５部、キシレンを９５部
添加し、均一に撹拌混合した後、サンドミルで３０分間
分散し、１０％濃度の塗料を得た。この塗料を上記ベー
スフイルムＡの転写調整層のうえに、８００μｍのワイ
ヤーを巻いたメイヤーバーで塗布し、１３０℃で２分間
乾燥して乾燥厚さ４μｍの熱転写インク層を有する熱転
写シートを得た。この熱転写シートとポリエチレンシー
トとを重ね合わせ、８ドット／ｍｍの解像度のサーマル
プリンターで０．５ｍｊ／ｄｏｔのエネルギーで印字し
ラベルを得た。次いで、耐溶剤性の評価を実施例１と同
様の方法で行った。その結果はＭＥＫ、ＴＯＬとも５１
往復でも損傷は認められなかった。Example 4 As a paint for a thermal transfer ink layer, a molecular weight of 1 was used.
15 parts of 1,000 polyethylene having a density of 0.96 was added to 85 parts of xylene, which was dissolved by heating to 100 ° C., and then cooled to precipitate polyethylene fine particles. Carbon raben 125 as a coloring agent
5 (manufactured by Columbia Carbon) and 95 parts of xylene were added, uniformly stirred and mixed, and then dispersed by a sand mill for 30 minutes to obtain a 10% concentration paint. This paint was applied on the transfer adjustment layer of the base film A with a Mayer bar wound with an 800 μm wire and dried at 130 ° C. for 2 minutes to obtain a thermal transfer sheet having a thermal transfer ink layer with a dry thickness of 4 μm. . The thermal transfer sheet and the polyethylene sheet were overlapped and printed with a thermal printer having a resolution of 8 dots / mm at an energy of 0.5 mj / dot to obtain a label. Next, the solvent resistance was evaluated in the same manner as in Example 1. The result is 51 for both MEK and TOL.
No damage was found on the round trip.
【００１４】[0014]
【比較例１】熱転写インク層の塗料として、分子量１，
０００で密度０．９５のポリエチレン１５部をキシレン
８５部に添加し、これを１００℃に加熱して溶解させ、
ついでこれを冷却し、ポリエチレンの微粒子を析出させ
た。これに着色剤としてカーボンのラーベン１２５５
（コロンビアカーボン製）を５部、キシレンを９５部添
加し、均一に撹拌混合した後、サンドミルで３０分間分
散し、１０％濃度の塗料を得た。この塗料を上記ベース
フイルムＡの転写調整層のうえに、８００μｍのワイヤ
ーを巻いたメイヤーバーで塗布し、１３０℃で２分間乾
燥して乾燥厚さ４μｍの熱転写インク層を有する熱転写
シートを得た。この熱転写シートとポリエチレンシート
とを重ね合わせ、８ドット／ｍｍの解像度のサーマルプ
リンターで０．５ｍｊ／ｄｏｔのエネルギーで印字し、
ラベルを得た。次いで、耐溶剤性の評価を実施例１と同
様の方法で行った。その結果はＭＥＫでは３５往復で、
ＴＯＬでは８往復で著しい損傷が認めらた。Comparative Example 1 The thermal transfer ink layer had a molecular weight of 1,
15 parts of polyethylene having a density of 0.95 at 000 are added to 85 parts of xylene, and this is heated to 100 ° C. to dissolve it,
Then, the mixture was cooled to precipitate polyethylene fine particles. In addition, carbon raben 1255 is used as a colorant.
(Colombia Carbon) (5 parts) and xylene (95 parts) were added and uniformly stirred and mixed, and then dispersed by a sand mill for 30 minutes to obtain a 10% concentration paint. This paint was applied on the transfer adjustment layer of the base film A with a Mayer bar wound with an 800 μm wire and dried at 130 ° C. for 2 minutes to obtain a thermal transfer sheet having a thermal transfer ink layer with a dry thickness of 4 μm. . The thermal transfer sheet and the polyethylene sheet are overlapped and printed with a thermal printer having a resolution of 8 dots / mm at an energy of 0.5 mj / dot.
Got the label. Next, the solvent resistance was evaluated in the same manner as in Example 1. The result is 35 round trips for MEK,
In the TOL, significant damage was observed in eight round trips.
【００１５】[0015]
【比較例２】熱転写インク層の塗料として、分子量２，
０００で密度０．９２のポリエチレン１５部をキシレン
８５部に添加し、これを１００℃に加熱して溶解させ、
ついでこれを冷却し、ポリエチレンの微粒子を析出させ
た。これに着色剤としてカーボンのラーベン１２５５
（コロンビアカーボン製）を５部、キシレンを９５部添
加し、均一に撹拌混合した後、サンドミルで３０分間分
散し、１０％濃度の塗料を得た。この塗料を上記ベース
フイルムＡの転写調整層のうえに、８００μｍのワイヤ
ーを巻いたメイヤーバーで塗布し、１３０℃で２分間乾
燥して乾燥厚さ４μｍの熱転写インク層を有する熱転写
シートを得た。この熱転写シートとポリエチレンシート
とを重ね合わせ、８ドット／ｍｍの解像度のサーマルプ
リンターで０．５ｍｊ／ｄｏｔのエネルギーで印字し、
ラベルを得た。次いで、耐溶剤性の評価を実施例１と同
様の方法で行った。その結果はＭＥＫでは２０往復で、
ＴＯＬでは６往復で著しい損傷が認められた。Comparative Example 2 As a coating material for the thermal transfer ink layer, a molecular weight of 2,
15 parts of polyethylene having a density of 0.92 and a density of 2,000 are added to 85 parts of xylene, and the mixture is heated to 100 ° C. and dissolved.
Then, the mixture was cooled to precipitate polyethylene fine particles. In addition, carbon raben 1255 is used as a colorant.
(Colombia Carbon) (5 parts) and xylene (95 parts) were added and uniformly stirred and mixed, and then dispersed by a sand mill for 30 minutes to obtain a 10% concentration paint. This paint was applied on the transfer adjustment layer of the base film A with a Mayer bar wound with an 800 μm wire, and dried at 130 ° C. for 2 minutes to obtain a thermal transfer sheet having a thermal transfer ink layer with a dry thickness of 4 μm. . The thermal transfer sheet and the polyethylene sheet are superimposed and printed with an energy of 0.5 mj / dot using a thermal printer having a resolution of 8 dots / mm.
Got the label. Next, the solvent resistance was evaluated in the same manner as in Example 1. The result is 20 round trips for MEK,
In the TOL, significant damage was observed in 6 round trips.
【００１６】[0016]
【比較例３】熱転写インク層の塗料として、分子量７，
０００で密度０．９２のポリエチレン１５部をキシレン
８５部に添加し、これを１００℃に加熱して溶解させ、
ついでこれを冷却し、ポリエチレンの微粒子を析出させ
た。これに着色剤としてカーボンのラーベン１２５５
（コロンビアカーボン製）を５部、キシレンを９５部添
加し、均一に撹拌混合した後、サンドミルで３０分間分
散し、１０％濃度の塗料を得た。この塗料を上記ベース
フイルムＡの転写調整層のうえに、８００μｍのワイヤ
ーを巻いたメイヤーバーで塗布し、１３０℃で２分間乾
燥して乾燥厚さ４μｍの熱転写インク層を有する熱転写
シートを得た。この熱転写シートとポリエチレンシート
とを重ね合わせ、８ドット／ｍｍの解像度のサーマルプ
リンターで０．５ｍｊ／ｄｏｔのエネルギーで印字し、
ラベルを得た。次いで、耐溶剤性の評価を実施例１と同
様の方法で行った。その結果はＭＥＫでは２０往復で、
ＴＯＬでは５往復で著しい損傷が認めらた。Comparative Example 3 As a paint for the thermal transfer ink layer, a molecular weight of 7,
15 parts of polyethylene having a density of 0.92 and a density of 2,000 are added to 85 parts of xylene, and the mixture is heated to 100 ° C. and dissolved.
Then, the mixture was cooled to precipitate polyethylene fine particles. In addition, carbon raben 1255 is used as a colorant.
(Colombia Carbon) (5 parts) and xylene (95 parts) were added and uniformly stirred and mixed, and then dispersed by a sand mill for 30 minutes to obtain a 10% concentration paint. This paint was applied on the transfer adjustment layer of the base film A with a Mayer bar wound with an 800 μm wire, and dried at 130 ° C. for 2 minutes to obtain a thermal transfer sheet having a thermal transfer ink layer with a dry thickness of 4 μm. . The thermal transfer sheet and the polyethylene sheet are superimposed and printed with an energy of 0.5 mj / dot using a thermal printer having a resolution of 8 dots / mm.
Got the label. Next, the solvent resistance was evaluated in the same manner as in Example 1. The result is 20 round trips for MEK,
In the case of TOL, significant damage was observed in five round trips.
【００１７】[0017]
【比較例４】市販のＡ社の樹脂型熱転写シートで白ＰＥ
Ｔ（東レ製Ｅ−２０）に印字し、耐溶剤性の評価を実施
例１と同様の方法で行った。その結果はＭＥＫでは１往
復で、ＴＯＬでは５往復で著しい損傷が認めらた。[Comparative Example 4] White PE with resin type thermal transfer sheet available from Company A
Printing was performed on T (manufactured by Toray E-20), and the solvent resistance was evaluated in the same manner as in Example 1. As a result, remarkable damage was observed in 1 round trip for MEK and 5 round trips for TOL.
【００１８】[0018]
【比較例５】市販のＢ社の樹脂型熱転写シートで白ＰＥ
Ｔ（東レ製Ｅ−２０）に印字し、耐溶剤性の評価を実施
例１と同様の方法で行った。その結果はＭＥＫでは１往
復で、ＴＯＬでも１往復で著しい損傷が認めらた。Comparative Example 5 Commercially available resin-type thermal transfer sheet of Company B with white PE
Printing was performed on T (manufactured by Toray E-20), and the solvent resistance was evaluated in the same manner as in Example 1. As a result, remarkable damage was observed in one round trip for MEK and one round trip for TOL.
【００１９】[0019]
【比較例５】 比較例６ 市販のＣ社の樹脂型熱転写シートで白ＰＥＴ（東レ製Ｅ
−２０）に印字し、耐溶剤性の評価を実施例１と同様の
方法で行った。その結果はＭＥＫでは１往復で、ＴＯＬ
でも１往復で著しい損傷が認めらた。Comparative Example 5 Comparative Example 6 A commercially available resin-type thermal transfer sheet of Company C was used for white PET (E made by Toray).
-20), and the solvent resistance was evaluated in the same manner as in Example 1. The result is one round trip for MEK, TOL
However, significant damage was observed in one round trip.
【００２０】[0020]
【発明の効果】以上の様にして得られた実施例及び比較
例の耐溶剤性を下記のごとく５段階に評価し、その結果
を第１表に示した。 第 １ 表 分子量 密度 耐溶剤性 g/cm3 ＭＥＫ ＴＯＬ 実施例１ ２，０００ ０．９５ ◎ ○ 〃 ２ ４，０００ ０．９８ ◎ ◎ 〃 ３ ８．０００ ０．９７ ◎ ◎ 〃 ４ １１．０００ ０．９６ ◎ ◎ 比較例１ １．０００ ０．９５ ○ × 〃 ２ ２，０００ ０．９２ △ × 〃 ３ ７，０００ ０．９２ △ × 〃 ４ Ａ社樹脂型熱転写シート ×× × 〃 ５ Ｂ社樹脂型熱転写シート ×× ×× 〃 ６ Ｃ社樹脂型熱転写シート ×× ×× 但し、記号の意味は下記の通り。 ◎：５１往復以上 ○：３１〜５０往復 △：１１〜３０ 〃 ×： ２〜１０ 〃 ××： １往復以下 以上の様に、本発明の熱転写シートで印字したラベルの
印像は非常に優れた耐溶剤性を示した。The solvent resistance of the examples and comparative examples obtained as described above was evaluated on a five-point scale as shown below, and the results are shown in Table 1. Table 1 Molecular weight Density Solvent resistance g / cm3 MEK TOL Example 1 2,000 0.95 ○ 〃 24,000 0.98 〃 〃 3 8.000 0.97 ◎ １１ 4 11.000 0.96 ◎ ◎ Comparative Example 1 1.000 0.95 ○ × 〃 22,000 0.92 △ × ３ 37,000 0.92 △ × ４ 4 Company A resin type thermal transfer sheet ×× × ５ 5 Company B Resin-type thermal transfer sheet ×× ×× ６ 6C Company resin-type thermal transfer sheet ×× ×× However, the meanings of the symbols are as follows. ◎: 51 reciprocations or more ：: 31 to 50 reciprocations △: 11 to 30 〃 ×: 2 to 10 〃 XX: 1 reciprocal or less As described above, the image of the label printed with the thermal transfer sheet of the present invention is very excellent. Solvent resistance.
フロントページの続き (56)参考文献 特開 平１−301286（ＪＰ，Ａ) 特開 平２−241790（ＪＰ，Ａ) 特開 昭62−158093（ＪＰ，Ａ) 特開 平４−327989（ＪＰ，Ａ) 特開 平１−301286（ＪＰ，Ａ) 特開 平２−241790（ＪＰ，Ａ) 特開 平６−328867（ＪＰ，Ａ) 特開 昭62−37189（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B41M 5/38 - 5/40 Continuation of front page (56) References JP-A-1-301286 (JP, A) JP-A-2-241790 (JP, A) JP-A-62-158093 (JP, A) JP-A-4-327989 (JP, A) JP-A-1-301286 (JP, A) JP-A-2-241790 (JP, A) JP-A-6-328867 (JP, A) JP-A-62-37189 (JP, A) (58) Field surveyed (Int.Cl. 7 , DB name) B41M 5/38-5/40
Claims (1)
止層を設け、他方の面に転写調整層と熱転写インク層を
設けてなる熱転写シートにおいて、熱転写インク層の樹
脂成分が分子量２，０００以上、密度が０．９５以上
で、キシレン溶剤に着色剤成分と共に分散するポリエチ
レン樹脂であって、溶剤のキシレンの乾燥過程で熱キシ
レンに溶解し着色剤の粒子と結着一体化してなる熱転写
インク層であることを特微とする熱転写シート。1. A thermal transfer sheet comprising a base film provided with a stick prevention layer on one surface and a transfer adjustment layer and a thermal transfer ink layer on the other surface, wherein the resin component of the thermal transfer ink layer has a molecular weight of 2,000 or more. A polyethylene resin having a density of 0.95 or more and dispersed in a xylene solvent together with a colorant component, and is a thermal transfer ink layer formed by dissolving in hot xylene during the drying process of the solvent xylene and binding and integrating with the colorant particles. A thermal transfer sheet that is unique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31583293A JP3168371B2 (en) | 1993-11-24 | 1993-11-24 | Thermal transfer sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31583293A JP3168371B2 (en) | 1993-11-24 | 1993-11-24 | Thermal transfer sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07144486A JPH07144486A (en) | 1995-06-06 |
| JP3168371B2 true JP3168371B2 (en) | 2001-05-21 |
Family
ID=18070111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31583293A Expired - Lifetime JP3168371B2 (en) | 1993-11-24 | 1993-11-24 | Thermal transfer sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3168371B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100317369B1 (en) * | 1999-09-28 | 2001-12-24 | 백준현 | Organic Solvent Composition for Pattern Transfer and Method for Wet Transferring Therewith |
| JP6829307B2 (en) * | 2017-03-31 | 2021-02-10 | 株式会社ユポ・コーポレーション | Labels for in-mold molding and resin molded products with labels |
-
1993
- 1993-11-24 JP JP31583293A patent/JP3168371B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07144486A (en) | 1995-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5126390A (en) | Coating formulations for the preparation of transfer elements | |
| JP2002079766A (en) | Protective layer transfer sheet | |
| JP3168371B2 (en) | Thermal transfer sheet | |
| JP4292266B2 (en) | Thermal transfer sheet, hard resin plate with recorded image | |
| EP0194860A2 (en) | Heat-sensitive transferring recording medium | |
| JPH0741747B2 (en) | Sheet for thermal transfer recording | |
| JP2001199162A (en) | Protective layer transferring sheet | |
| JPS63251287A (en) | Ink ribbon for producing dry transfer material | |
| JP4467853B2 (en) | Thermal transfer film, image forming method and image formed product using the same | |
| JP2792380B2 (en) | Thermal transfer recording medium | |
| JP4478361B2 (en) | Thermal transfer film, image forming method and image formed product using the same | |
| JPH0358888A (en) | Thermal transfer recording medium | |
| JP2001191652A (en) | Thermal transfer medium | |
| JP4263833B2 (en) | Thermal transfer medium | |
| JPH06102392B2 (en) | Thermal transfer ink ribbon for dry transfer material manufacturing | |
| JP3302327B2 (en) | Thermal transfer recording medium | |
| JP3532008B2 (en) | Thermal transfer recording medium | |
| JPH0776178A (en) | Thermal transfer sheet | |
| JP2699333B2 (en) | Method for producing transfer body for thermal transfer recording | |
| JP2581228B2 (en) | Resin-type thermal transfer recording material | |
| CN117207695A (en) | Color thermal transfer printing sheet capable of adapting to printing of various base materials | |
| JPH05262057A (en) | Image receiving material for thermal transfer recording | |
| JP4150812B2 (en) | Thermal transfer recording medium | |
| JP2587466B2 (en) | Thermal transfer recording material | |
| JP2000141923A (en) | Thermal transfer ercording medium and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080316 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090316 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100316 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110316 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110316 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120316 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130316 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140316 Year of fee payment: 13 |
|
| EXPY | Cancellation because of completion of term |