JPS62286788A - Thermal transfer recording material - Google Patents
Thermal transfer recording materialInfo
- Publication number
- JPS62286788A JPS62286788A JP61131545A JP13154586A JPS62286788A JP S62286788 A JPS62286788 A JP S62286788A JP 61131545 A JP61131545 A JP 61131545A JP 13154586 A JP13154586 A JP 13154586A JP S62286788 A JPS62286788 A JP S62286788A
- Authority
- JP
- Japan
- Prior art keywords
- film
- fine particles
- base material
- transfer recording
- thermal head
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 79
- 239000010419 fine particle Substances 0.000 claims abstract description 36
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 abstract description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract description 4
- 150000002148 esters Chemical class 0.000 abstract description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract description 4
- 230000003746 surface roughness Effects 0.000 abstract description 4
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- 239000012943 hotmelt Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000004584 polyacrylic acid Substances 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 3
- 238000007788 roughening Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000004203 carnauba wax Substances 0.000 description 2
- 235000013869 carnauba wax Nutrition 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910021446 cobalt carbonate Inorganic materials 0.000 description 1
- ZOTKGJBKKKVBJZ-UHFFFAOYSA-L cobalt(2+);carbonate Chemical compound [Co+2].[O-]C([O-])=O ZOTKGJBKKKVBJZ-UHFFFAOYSA-L 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/426—Intermediate, backcoat, or covering layers characterised by inorganic compounds, e.g. metals, metal salts, metal complexes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/30—Thermal donors, e.g. thermal ribbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
【発明の詳細な説明】 ３、発明の詳細な説明 （産業上の利用分野〕 本発明は感熱転写記録材に関する。[Detailed description of the invention] 3. Detailed description of the invention (Industrial application field) The present invention relates to a thermal transfer recording material.
従来の感熱転写記録材は、特に高速での印字を要求され
ることもなく、また、単にプリンター走行系を走行すれ
ばよかったので、その走行の確実さ、定速性に対してほ
とんど関心が払われることがなく、その構造も第２図に
示すように平滑な基材ｌの一方の面に熱溶融性インク層
２を形成したものであった。Conventional thermal transfer recording materials were not required to print at particularly high speeds, and simply ran through the printer's running system, so little attention was paid to the reliability and constant speed of their running. The structure was such that a heat-melting ink layer 2 was formed on one side of a smooth base material 1, as shown in FIG.
ところで、今後要求される印字のカラー化や、プリンタ
ーの精度向上に基づく感熱転写記録材の複数回使用に対
応するためには、感熱転写記録材は高速で走行しなけれ
ばならず、しかも高速走行下での走行性の確実さや定速
性が必要とされる。By the way, in order to support the future demand for color printing and the multiple use of thermal transfer recording materials due to improved printer accuracy, thermal transfer recording materials must run at high speeds, and Reliability and constant speed are required for low-speed running.
ところが、従来の感熱転写記録材は、その走行性に関し
て関心が払われておらず、もとより走行性に対する改善
、向上がなされていないため、高速走行下では、基材が
プリンターのサーマルヘッドに密着するなど、基材とサ
ーマルヘッドとの摺動性が悪（、そのため、感熱転写記
録材の走行移動が不正確、不安定となり、高速印字が困
難になるという問題があった。However, with conventional thermal transfer recording materials, no attention has been paid to their runnability, and since no improvements have been made to the runnability, the substrate adheres closely to the printer's thermal head when running at high speeds. The sliding properties between the substrate and the thermal head are poor (as a result, the running movement of the thermal transfer recording material becomes inaccurate and unstable, making high-speed printing difficult).
そこで、基材の熱溶融性インク層の形成面と反対側の面
に基材の走行方向に平行な溝を設けることによって、基
材とサーマルヘッドとの接触面積を少なくし、感熱転写
記録材の走行性を改善することが提案されている（例え
ば、特開昭５９−１４２１８７号公報）。Therefore, by providing grooves parallel to the running direction of the base material on the surface opposite to the surface on which the heat-melt ink layer is formed, the contact area between the base material and the thermal head can be reduced, and the thermal transfer recording material can be It has been proposed to improve the running performance of (for example, Japanese Patent Laid-Open No. 142187/1987).
しかしながら、本発明者の研究によれば、上記のように
基材に溝を設置する場合は、理論上は基材とサーマルヘ
ッドとの接触面積が小さくなること、から、サーマルヘ
ッドへの基材の密着が減少して、走行性が改善されると
考えられるものの、溝でない部分では相変わらず平面で
サーマルヘッドとの接触が行われるため、走行性を改善
する効果が少なく、またその効果を大きくするために溝
の幅を大きくしたり、溝と溝との間隙を狭くすると、イ
ンクが溶融しなくなって、印字の解像度が低下するとい
う問題があった。However, according to the research of the present inventor, when grooves are installed in the base material as described above, theoretically the contact area between the base material and the thermal head becomes smaller. Although it is thought that running performance will be improved by reducing the adhesion of the thermal head, contact with the thermal head will continue to be made on a flat surface in areas other than grooves, so the effect of improving running performance will be small, and the effect will not be increased. Therefore, if the width of the grooves is increased or the gap between the grooves is narrowed, there is a problem that the ink is no longer melted and the resolution of printing is reduced.
この発明は、上記従来製品が持っていた走行性の不確実
さを解決し、安定した走行性を有する感熱転写記録材を
提供することを目的とする。The object of the present invention is to solve the uncertainties in runnability that the above conventional products had and to provide a thermal transfer recording material that has stable runnability.
本発明は、基材の熱熔融性インク層の形成面と反対側の
面、つまり、プリンターのサーマルヘッドと接触する側
の面を中心線平均粗さ（Ｒａ）が０．０５〜０．３μｍ
の粗面にすることによって、基材とサーマルヘッドとの
接触面積を小さくし、基材とサーマルヘッドとの摺動性
を改良して、感熱転写記録材の走行性を安定化させたも
のである。In the present invention, the centerline average roughness (Ra) of the surface of the substrate opposite to the surface on which the hot-melt ink layer is formed, that is, the surface that contacts the thermal head of the printer, is 0.05 to 0.3 μm.
By making the surface rough, the contact area between the base material and the thermal head is reduced, the sliding properties between the base material and the thermal head are improved, and the running performance of the thermal transfer recording material is stabilized. be.
上記のような基材の熱溶融性インク層の形成面と反対側
の面の粗面化は、基材に微粒子を存在させた皮膜を形成
することによって達成される。つまり、皮膜形成物質中
に微粒子を混合しておいて皮膜を形成することにより、
皮膜表面に微粒子に基づく突起を現出させることによっ
て表面を粗面化するのである。そして、その皮膜中に分
散する微粒子に基づく皮膜表面の突起部分でサーマルヘ
ッドと接触させることにより、基材とサーマルヘッドと
の接触面積を小さくし、基材とサーマルヘッドとの摺動
性を改善して、感熱転写記録材の走行性を安定化させる
のである。Roughening of the surface of the base material opposite to the surface on which the heat-melting ink layer is formed is achieved by forming a film containing fine particles on the base material. In other words, by mixing fine particles into a film-forming substance and forming a film,
The surface of the film is roughened by causing projections based on fine particles to appear on the surface of the film. By bringing the thermal head into contact with the protrusions on the film surface based on the fine particles dispersed in the film, the contact area between the base material and the thermal head is reduced, improving the sliding properties between the base material and the thermal head. This stabilizes the running properties of the thermal transfer recording material.
かかる本発明の感熱転写記録材を模式的に示すと第１図
の通りである０図中、１は基材で、２は熱熔融性インク
層であり、３は微粒子を存在させた皮膜である。この皮
膜３は、基材１の熱溶融性インク層２の形成面と反対側
の面に形成されていて、この皮１）Ｉ３における３ａは
皮膜形成物質であり、３ｂは微粒子であって、皮膜３０
表面には微粒子３ｂに基づく突起３ｃが現れ、皮膜３の
表面は粗面化している。そして、前述したように、この
皮膜３中に分散する微粒子３ｂに基づく皮１！３表面の
突起３ｃ部分でサーマルヘッドと接触させるのである。The thermal transfer recording material of the present invention is schematically shown in FIG. be. This film 3 is formed on the surface of the base material 1 opposite to the surface on which the heat-fusible ink layer 2 is formed, and 3a in this skin 1) I3 is a film-forming substance, 3b is fine particles, Film 30
Protrusions 3c based on the fine particles 3b appear on the surface, and the surface of the film 3 is roughened. Then, as described above, the projections 3c on the surface of the skin 1!3 based on the fine particles 3b dispersed in the film 3 are brought into contact with the thermal head.
したがって、この感熱転写記録材によれば、基材とサー
マルヘッドとの接触面積が小さくなって、走行性が改善
され、また上記突起３ｃの高さも皮膜３の表面粗度が特
定の範囲に保たれるように規制を受けているので、サー
マルヘッドで加熱したときにインクが溶融しないという
ような事態が生じることがなく、したがって、印字特性
の低下が生じない。Therefore, according to this thermal transfer recording material, the contact area between the base material and the thermal head is reduced, and running properties are improved, and the height of the projections 3c also maintains the surface roughness of the film 3 within a specific range. Since the ink is regulated so that it does not sag, a situation where the ink does not melt when heated by a thermal head does not occur, and therefore, printing characteristics do not deteriorate.
上記皮膜における皮膜形成物質は、微粒子を結着し、微
粒子を存在させた状態で皮膜を形成するものであり、そ
のような皮膜形成物質としては、例えば部分エポキシ化
ポリアクリル酸エステル、ポリビニルアルコール、ポリ
ウレタン、ポリエステル、ポリアミド、ポリ塩化ビニル
、塩化ビニル−酢酸ビニル共重合体、ポリ塩化ビニリデ
ン、酢酸酪酸セルロース、メラミン樹脂などが用いられ
る。The film-forming substance in the above-mentioned film is one that binds fine particles and forms a film in a state where the fine particles are present. Examples of such film-forming substances include partially epoxidized polyacrylic acid ester, polyvinyl alcohol, Polyurethane, polyester, polyamide, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, polyvinylidene chloride, cellulose acetate butyrate, melamine resin, etc. are used.
微粒子としては、無機微粒子、有機微粒子のいずれも使
用することができるが、通常、無機微粒子が用いられる
。集機微粒子としては、例えば炭酸カルシウム、炭酸バ
リウム、炭酸コバルトなどの炭酸塩の微粒子、酸化鉄（
Ｆｅ２０３）、酸化亜鉛（ＺｎＯ）、酸化チタン（Ｔｉ
０２）、酸化アルミニウム（Ａｌ２Ｏ２）、酸化マグネ
シウム（ＭｇＯ）、酸化ケイ素（Ｓ ｉ ０２ ）など
の金属酸化物の微粒子、硫酸バリウムなどの硫酸塩の微
粒子、ニッケル、コバルト、鉄などの金属微粒子、ある
いは高分子などの保護コロイド層表面を有する上記金属
、炭酸塩、硫酸塩、金属酸化物の微粒子などが用いられ
る。これら無機微粒子は、それ自身固いので、しっかり
した突起を形成することができる。また、これら無機微
粒子は、サーマルヘラドとの接触により皮膜中から脱落
するようなことがないように皮膜形成物質でしっかりと
固定しておくことによって、サーマルヘッドに付着した
汚れをかき落とす効果もある。As the fine particles, either inorganic fine particles or organic fine particles can be used, but inorganic fine particles are usually used. Examples of collector particles include carbonate particles such as calcium carbonate, barium carbonate, and cobalt carbonate, iron oxide (
Fe203), zinc oxide (ZnO), titanium oxide (Ti
02), fine particles of metal oxides such as aluminum oxide (Al2O2), magnesium oxide (MgO), and silicon oxide (S i 02 ), fine particles of sulfates such as barium sulfate, fine particles of metals such as nickel, cobalt, iron, etc. Fine particles of the above-mentioned metals, carbonates, sulfates, metal oxides, etc. having a surface of a protective colloid layer such as a polymer are used. Since these inorganic fine particles are themselves hard, they can form solid protrusions. Furthermore, by firmly fixing these inorganic fine particles with a film-forming substance so that they do not fall out of the film due to contact with the thermal head, it also has the effect of scraping off dirt adhering to the thermal head.
微粒子の大きさは、通常、粒径０．０５〜０．３μｍ程
度のものが好ましい。これら微粒子は、粒径の小さいも
のでも、二次粒子化して基材表面の粗面化に寄与するの
で、粒径が小さいために表面が粗面化できないというよ
うなことはない。゛これら微粒子の皮膜形成物質への添
加量は、皮膜形成物質１００重量部に対して微粒子を０
．５〜６０重量部にするのが好ましい。皮膜形成にあた
って、皮膜形成物質は溶液または分散液にした状態で基
材に塗布されるので、微粒子もそれら皮膜形成物質溶液
または分散液への混合がしやすいようにコロイド溶液に
しておくことが好ましい。The size of the fine particles is usually preferably about 0.05 to 0.3 μm. Even if these fine particles have a small particle size, they become secondary particles and contribute to roughening the surface of the base material, so there is no possibility that the surface cannot be roughened due to the small particle size.゛The amount of these fine particles added to the film-forming substance is 0 parts by weight per 100 parts by weight of the film-forming substance.
．． The amount is preferably 5 to 60 parts by weight. When forming a film, the film-forming substance is applied to the substrate in the form of a solution or dispersion, so it is preferable to form the fine particles into a colloidal solution so that they can be easily mixed into the solution or dispersion of the film-forming substance. .
基材への皮膜形成は、微粒子を含んだ皮膜形成物質の溶
液または分散液を基材に塗布し、乾燥することによって
行われるが、皮膜形成は基材の一方の面のみに行うこと
もできるし、また基材の両面にも行うことができる。基
材の一方の面のみに皮膜を形成した場合には、その皮膜
面が必ず熱熔融性インク層の形成面と反対側の面になる
ようにする必要がある。Film formation on a substrate is performed by applying a solution or dispersion of a film-forming substance containing fine particles to the substrate and drying it, but film formation can also be performed on only one side of the substrate. However, it can also be applied to both sides of the base material. When a film is formed on only one surface of the base material, it is necessary to ensure that the surface of the film is the surface opposite to the surface on which the hot-melt ink layer is formed.
本発明において、基材上に形成する皮膜の表面の粗度を
ＪＩＳ Ｂ ０６０１に基づく中心線平均粗さ（Ｒａ）
で０．０５〜０．３μｍにしたのは、皮膜表面の中心線
平均粗さ（Ｒａ）が０．０５μ■より小さいと、高速走
行下での基材表面とサーマルヘッドとの走行移動が不安
定になり、また中心線平均粗さ（Ｒａ）が０．３μｍを
超えると、走行性は安定するが、サーマルヘッドとの接
触が不充分となり、その結果、印字解像度が低下するか
らである。ちなみに、この分野で、通常用いられる基材
の表面の中心線平均粗さ（Ｒａ）は０．０２〜０．０３
μｍであり、本発明においては、とりわけ基材上に形成
する皮膜の表面粗度を中心線平均粗さ（Ｒａ）で０．０
９〜０．２μ頂にするのが特に好ましい。In the present invention, the surface roughness of the film formed on the base material is defined as center line average roughness (Ra) based on JIS B 0601.
The reason why it is set to 0.05 to 0.3 μm is because if the center line average roughness (Ra) of the film surface is smaller than 0.05 μm, the running movement between the substrate surface and the thermal head will be difficult during high-speed running. This is because, although stability is achieved and when the center line average roughness (Ra) exceeds 0.3 μm, runnability becomes stable, but contact with the thermal head becomes insufficient, resulting in a decrease in printing resolution. By the way, in this field, the center line average roughness (Ra) of the surface of the base material commonly used is 0.02 to 0.03.
μm, and in the present invention, in particular, the surface roughness of the film formed on the base material is 0.0 in center line average roughness (Ra).
It is particularly preferred to have a peak of 9 to 0.2 μm.
基材や熱溶融性インク層形成のための熱溶融性インクは
、特殊なものが要求されることなく、従来同様のものが
使用できる。例示すると、基材には例えばポリエステル
フィルム（ポリエチレンテレフタレートフィルム）、ボ
リアリレートフィルム、ポリスルフォンフィルム、ポリ
イミドフィルム、ポリカーボネートフィルム、ナイロン
フィルムなどが用いられ、これら基材は、通常、厚さ２
〜２０μｍ程度のものが好ましい。熱溶融性インクには
、例えばカーボンブラックなどの着色剤、パラフィンワ
ックス、マイクロクリスタリンワックス、カルナウバワ
ックスなどのワックス類、石油）耐相などの熱可塑性樹
脂、その他の添加剤を適宜含有した従来同様の熱溶融性
インクが何らの制約なく使用することができる。The base material and the heat-melt ink for forming the heat-melt ink layer are not required to be special, and conventional ones can be used. For example, the base material used is, for example, a polyester film (polyethylene terephthalate film), a polyarylate film, a polysulfone film, a polyimide film, a polycarbonate film, a nylon film, etc., and these base materials usually have a thickness of 2
A thickness of approximately 20 μm is preferable. The heat-melting ink contains colorants such as carbon black, waxes such as paraffin wax, microcrystalline wax, and carnauba wax, thermoplastic resins such as petroleum-resistant, and other additives as appropriate. hot-melt ink can be used without any restrictions.
皮膜形成は、基材への熱溶融性インク屡の形成前に行わ
れるが、基材に皮膜を形成した後、延伸することも可能
である。Although film formation is performed before the formation of the hot-melt ink layer on the base material, it is also possible to stretch the film after forming the film on the base material.
つぎに実施例をあげて本発明をさらに詳細に説明する。 Next, the present invention will be explained in more detail by giving Examples.
実施例１
厚さ６μｍで表面平滑なポリエステルフィルムを基材と
して用い、その一方の面に、部分エポキシ化ポリアクリ
ル酸エステルとポリビニルアルコールとを含む水性エマ
ルシランに酸化チタンコロイドを混和して得られたエマ
ルシラン塗液を塗布し、乾燥したのち、他方の面に厚さ
５μｍの熱熔融性インク層を形成し、ついで、幅６．３
ＲＩ１）に切断して、リボン状の感熱転写記録材を得た
。インク層形成にあたって使用された熱溶融性インクは
、カーホンプラック２０重量部、パラフィンワックス６
５重量部、カルナウバワックス２０重量部、石油樹脂１
０重量部および流動パラフィン５重量部からなるもので
あり、この感熱転写記録材の熱溶融性インク層の形成面
と反対側の面、つまり、プリンターのサーマルヘッドと
接触する側の面の中心線平均粗さ（Ｒａ）はＯｌ、２μ
閑であった。そして、使用された酸化チタン（Ｔｉ０２
）の粒径は平均粒径で０．２μｌであり、この酸化チタ
ン微粒子の皮膜形成物質、つまり部分エポキシ化ポリア
クリル酸エステルとポリビニルアルコールへの添加量は
、皮膜形成物質１００重量部に対して酸化チタン３５重
量部である。Example 1 A polyester film with a thickness of 6 μm and a smooth surface was used as a base material, and on one side, a titanium oxide colloid was mixed with an aqueous emulsilane containing partially epoxidized polyacrylic acid ester and polyvinyl alcohol. After applying emulsilane coating liquid and drying, a 5 μm thick hot melt ink layer is formed on the other side, and then a 6.3 μm wide hot melt ink layer is formed on the other side.
RI1) to obtain a ribbon-shaped thermal transfer recording material. The heat-melting ink used to form the ink layer was 20 parts by weight of carhon plaque and 6 parts by weight of paraffin wax.
5 parts by weight, 20 parts by weight of carnauba wax, 1 part by weight of petroleum resin
0 parts by weight and 5 parts by weight of liquid paraffin, and the center line of the surface of this thermal transfer recording material opposite to the surface on which the heat-melting ink layer is formed, that is, the surface that contacts the thermal head of the printer. Average roughness (Ra) is Ol, 2μ
It was quiet. And, the titanium oxide (Ti02
) has an average particle size of 0.2 μl, and the amount of titanium oxide fine particles added to the film-forming material, that is, partially epoxidized polyacrylic acid ester and polyvinyl alcohol, is 100 parts by weight of the film-forming material. The titanium oxide was 35 parts by weight.
実施例２
実施例１における酸化チタン（ＴｉＯ２）に代えて平均
粒径０．１μ巾の炭酸カルシウム（Ｃａ Ｃ０３）を用
いたほかは、実施例１と同様にして、リボン状の感熱転
写記録材を作製した。この感熱転写記録材における熱溶
融性インク層の形成面と反対側の面の中心線平均粗さ（
Ｒａ）は０．１μｍであった。Example 2 A ribbon-shaped thermal transfer recording material was produced in the same manner as in Example 1, except that calcium carbonate (Ca C03) with an average particle size of 0.1 μ was used in place of titanium oxide (TiO2) in Example 1. was created. The center line average roughness of the surface opposite to the surface on which the heat-melting ink layer is formed in this thermal transfer recording material (
Ra) was 0.1 μm.
実施例３
実施例１における酸化チタン（Ｔｉ０２）に代えて平均
粒径０．０６μｍの酸化アルミニウム（Ａ１２０３）を
用いたほかは、実施例１と同様にして、リボン状の感熱
転写記録材を作製した。この感熱転写記録材における熱
溶融性インク層の形成面と反対側の面の中心線平均粗さ
（Ｒａ）は０．０６μｍであった。Example 3 A ribbon-shaped thermal transfer recording material was produced in the same manner as in Example 1, except that aluminum oxide (A1203) with an average particle size of 0.06 μm was used in place of titanium oxide (Ti02) in Example 1. did. The center line average roughness (Ra) of the surface opposite to the surface on which the heat-melting ink layer was formed in this heat-sensitive transfer recording material was 0.06 μm.
比較例１
厚さ６μｍの平滑なポリエステルフィルムを基材に用い
、その一方の面に実施例１と同様に厚さ５μｍの熱熔融
性インク層を形成し、以後、実施伊１）と同様にして、
リボン状のｇ熱転写記録材を作製した。この感熱転写記
録材における熱熔融性インク層の形成面と反対側の面の
中心線平均粗さ（Ｒａ）は０．０２μ曙であった。Comparative Example 1 A smooth polyester film with a thickness of 6 μm was used as a base material, and a heat-meltable ink layer with a thickness of 5 μm was formed on one side of the film in the same manner as in Example 1. hand,
A ribbon-shaped g-thermal transfer recording material was produced. The center line average roughness (Ra) of the surface opposite to the surface on which the heat-melting ink layer was formed in this heat-sensitive transfer recording material was 0.02 μm.
上記実施例１〜３および比較例１のリボン状感熱転写記
録材をカートリッジに装填しく１巻６０ｍ）、８ドント
／１Ｉｌｌのサーマルヘッドヲを寺つプリンターにより
、走行速度０．３ｍ／秒で普通紙上に印字して、その走
行性評価および印字特性評価を行った。その結果を第１
表に示す、なお、走行性評価は被転写紙の“地汚れ”に
より行い、印字特性評価は転写面積率で行った。被転写
紙の“池汚れ”とは、サーマルへラドと感熱転写記録材
の基材との摺動不良により、転写していない部分のイン
クがサーマルヘッドにより押されて被転写紙上をこする
ことによって生じる被転写紙の汚れをいい、転写面積率
とは、サーマルヘッドのドツトの大きさに対する印字ド
ツトの大きさの比を示したもので、印字ドツトの面積を
光学顕微鏡にて１００倍に拡大して測定し、それをサー
マルヘッドのドツト面積で除し１００倍したものである
。この転写面積率が１００％のときにサーマルヘッドの
ドツト面積を忠実に再現したものであるといえる。上記
試験に際して採用された走行速度は、通常の走行速度の
８倍にあたり、いわゆる高速印字に該当する。The ribbon-shaped thermal transfer recording materials of Examples 1 to 3 and Comparative Example 1 were loaded into a cartridge, one roll of which was 60 m), and a printer equipped with an 8 dont/1 Ill thermal head was used at a normal running speed of 0.3 m/sec. Printing was performed on paper to evaluate running properties and printing characteristics. The result is the first
As shown in the table, runnability was evaluated based on "background stains" on the transfer paper, and printing characteristics were evaluated based on transfer area ratio. "Pond stain" on the transfer paper is caused by poor sliding between the thermal head and the base material of the thermal transfer recording material, causing the ink in the untransferred area to be pushed by the thermal head and rubbed onto the transfer paper. The transfer area ratio is the ratio of the size of the printed dot to the size of the dot of the thermal head, and the area of the printed dot is magnified 100 times using an optical microscope. The measured value is divided by the dot area of the thermal head and multiplied by 100. When the transfer area ratio is 100%, it can be said that the dot area of the thermal head is faithfully reproduced. The running speed adopted in the above test was eight times the normal running speed, and corresponded to so-called high-speed printing.
第 １ 表
第１表に示すように、実施例１〜３の感熱転写記録（オ
は、高速走行でも被転写紙の“地汚れ”を起こすことが
少なく、走行性が優れていた。これは基材のサーマルヘ
ッドとの接触面となる熱熔融性インク層の形成面と反対
側の面を前述のような微粒子を存在させた皮膜の形成に
より粗面化したことによって、基材とサーマルヘッドと
の接触が基材上の皮膜表面の突起部分で行われるように
なり、基材とサーマルヘッドとの接触面積が小さくなっ
たことによるものである。ｑれに対して従来品を示す比
較例１の感熱転写記録材は、基材のサーマルヘッドに接
触する面が平滑で、基材とサーマルヘッドとの接触面積
が大きいため、高速走行では、基材がサーマルヘッドに
密着して、基材とサーマルヘッドとの摺動性が悪くなり
、第１表に示すように多数の“地汚れ”が発生した。ま
た、印字特性に関しては、実施例１〜３の感熱転写記録
材は、転写面積率が適正で、従来品を示す比較例１の感
熱転写記録子オに比べて劣ることがなかった。Table 1 As shown in Table 1, the thermal transfer recordings of Examples 1 to 3 (E) had excellent running properties, with little occurrence of "smearing" of the transfer paper even when running at high speed. By roughening the surface of the base material opposite to the surface on which the hot-melt ink layer is formed, which is the contact surface with the thermal head, by forming a film containing fine particles as described above, the surface of the base material and the thermal head are made rough. This is because the contact area between the thermal head and the substrate is now made at the protrusions on the surface of the film on the base material, and the contact area between the base material and the thermal head has become smaller. In thermal transfer recording material No. 1, the surface of the base material that contacts the thermal head is smooth, and the contact area between the base material and the thermal head is large. The sliding property between the thermal head and the thermal head deteriorated, and a large number of "background stains" occurred as shown in Table 1.As for printing characteristics, the thermal transfer recording materials of Examples 1 to 3 had a large transfer area. The rate was appropriate and was not inferior to that of the thermal transfer recording head of Comparative Example 1, which represents a conventional product.
以上説明したように、本発明では、基材に微粒子を存在
させた皮膜を形成することにより、基材の熱溶融性イン
ク層の形成面と反対側の面を粗面化して、基材とサーマ
ルヘッドとの接触面積を小さくすることによって、感熱
転写記録材の走行性を改善することができた。As explained above, in the present invention, by forming a film containing fine particles on the base material, the surface of the base material opposite to the surface on which the heat-melting ink layer is formed is roughened, and the surface of the base material is roughened. By reducing the contact area with the thermal head, the running properties of the thermal transfer recording material could be improved.
第１図は本発明の感熱転写記録材の一例を模式的に示す
断面図である。第２図は従来の感熱転写記録材を示す断
面図である。
ｌ・・・基材、 ２・・・熱溶融性インク層、３・・・
皮膜、 ３ｂ・・・微粒子、 ３ｃ・・・突起ｌ・・・
基材
第 １ 図FIG. 1 is a sectional view schematically showing an example of the thermal transfer recording material of the present invention. FIG. 2 is a sectional view showing a conventional thermal transfer recording material. 1...Base material, 2...Thermofusible ink layer, 3...
Film, 3b...fine particles, 3c...protrusions l...
Base material Figure 1
Claims (2)
る感熱転写記録材であって、上記基材の熱熔融性インク
層の形成面と反対側の面に微粒子を存在させた皮膜が形
成されていて、該皮膜の中心線平均粗さ（Ｒａ）が０．
０５〜０．３μｍであることを特徴とする感熱転写記録
材。(1) A thermal transfer recording material comprising a heat-meltable ink layer formed on one surface of a base material, in which fine particles are present on the surface of the base material opposite to the surface on which the heat-meltable ink layer is formed. A film with a centerline average roughness (Ra) of 0.
A thermal transfer recording material having a particle size of 0.05 to 0.3 μm.
１項記載の感熱転写記録材。(2) The thermal transfer recording material according to claim 1, wherein the fine particles are inorganic fine particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61131545A JPS62286788A (en) | 1986-06-05 | 1986-06-05 | Thermal transfer recording material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61131545A JPS62286788A (en) | 1986-06-05 | 1986-06-05 | Thermal transfer recording material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62286788A true JPS62286788A (en) | 1987-12-12 |
Family
ID=15060583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61131545A Pending JPS62286788A (en) | 1986-06-05 | 1986-06-05 | Thermal transfer recording material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62286788A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04126293A (en) * | 1989-11-14 | 1992-04-27 | Toray Ind Inc | Laminated polyester film |
| JPH11129631A (en) * | 1997-10-24 | 1999-05-18 | Dainippon Printing Co Ltd | Heat-sensitive reversible recording medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6082385A (en) * | 1983-10-12 | 1985-05-10 | Matsushita Electric Ind Co Ltd | Thermal transfer recording body |
| JPS60174689A (en) * | 1984-02-20 | 1985-09-07 | Matsushita Electric Ind Co Ltd | Transfer material for thermal recording |
| JPS60219094A (en) * | 1984-04-16 | 1985-11-01 | Matsushita Electric Ind Co Ltd | Transfer material for thermal recording |
-
1986
- 1986-06-05 JP JP61131545A patent/JPS62286788A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6082385A (en) * | 1983-10-12 | 1985-05-10 | Matsushita Electric Ind Co Ltd | Thermal transfer recording body |
| JPS60174689A (en) * | 1984-02-20 | 1985-09-07 | Matsushita Electric Ind Co Ltd | Transfer material for thermal recording |
| JPS60219094A (en) * | 1984-04-16 | 1985-11-01 | Matsushita Electric Ind Co Ltd | Transfer material for thermal recording |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04126293A (en) * | 1989-11-14 | 1992-04-27 | Toray Ind Inc | Laminated polyester film |
| JPH11129631A (en) * | 1997-10-24 | 1999-05-18 | Dainippon Printing Co Ltd | Heat-sensitive reversible recording medium |
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