JPH04327989A - Thermal transfer material - Google Patents
Thermal transfer materialInfo
- Publication number
- JPH04327989A JPH04327989A JP3125185A JP12518591A JPH04327989A JP H04327989 A JPH04327989 A JP H04327989A JP 3125185 A JP3125185 A JP 3125185A JP 12518591 A JP12518591 A JP 12518591A JP H04327989 A JPH04327989 A JP H04327989A
- Authority
- JP
- Japan
- Prior art keywords
- ink layer
- control layer
- layer
- thermal transfer
- heat
- 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 33
- 239000000945 filler Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 229910052814 silicon oxide Inorganic materials 0.000 abstract description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 3
- 239000004793 Polystyrene Substances 0.000 abstract description 2
- 239000004927 clay Substances 0.000 abstract description 2
- 229910052570 clay Inorganic materials 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 229920002223 polystyrene Polymers 0.000 abstract description 2
- 229920002689 polyvinyl acetate Polymers 0.000 abstract description 2
- 239000011118 polyvinyl acetate Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 239000000088 plastic resin Substances 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 42
- 239000000758 substrate Substances 0.000 description 25
- 238000000576 coating method Methods 0.000 description 15
- 239000011248 coating agent Substances 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 11
- 229920001225 polyester resin Polymers 0.000 description 10
- 239000004645 polyester resin Substances 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000002904 solvent Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 4
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 3
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000013518 transcription Methods 0.000 description 1
- 230000035897 transcription Effects 0.000 description 1
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は感熱転写体に係わり、さ
らに詳しくは印字品質の良好な感熱転写体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sensitive transfer member, and more particularly to a heat-sensitive transfer member with good print quality.
【0002】0002
【従来の技術】従来の感熱転写体は、図2に示すように
、基体1の一方の面に加熱により溶融して被転写体上に
転写する熱溶融性のインク層2を形成することによって
つくられていた(例えば、特開昭55−3919号公報
)。2. Description of the Related Art Conventional thermal transfer materials, as shown in FIG. (For example, Japanese Patent Laid-Open No. 55-3919).
【0003】0003
【発明が解決しようとする課題】しかしながら、このよ
うな感熱転写体では、転写時に加熱された部分以外の部
分(非加熱部分)のインク層の一部までが転写してしま
い、解像度の低い、好ましくない印字品質になりがちで
あった。[Problems to be Solved by the Invention] However, in such a heat-sensitive transfer member, part of the ink layer other than the heated part (non-heated part) is transferred, resulting in low resolution and This tends to result in undesirable print quality.
【0004】本発明は、そのような問題点を解決し、解
像度が高く印字品質の良好な感熱転写体を提供すること
を目的とする。An object of the present invention is to solve such problems and provide a thermal transfer member with high resolution and good print quality.
【0005】[0005]
【課題を解決するための手段】本発明は、基体とインク
層との間に、熱可塑性樹脂とフィラーとの混合物を主材
とする剥離制御層を設けることによって、上記目的を達
成したものである。[Means for Solving the Problems] The present invention achieves the above object by providing a peeling control layer mainly made of a mixture of a thermoplastic resin and a filler between the substrate and the ink layer. be.
【0006】すなわち、上記のように熱可塑性樹脂とフ
ィラーとの混合物を主材とする剥離制御層を基体とイン
ク層との間に設けることによって、非加熱時の基体とイ
ンク層との接着力をインク層の凝集力より大きくし、そ
れによって、転写時に加熱された部分のインク層のみが
被転写体上に転写し、非加熱部分のインク層が基体側に
確実に残るようにしたのである。That is, by providing a peel control layer mainly made of a mixture of a thermoplastic resin and a filler between the substrate and the ink layer as described above, the adhesive force between the substrate and the ink layer when not heated is improved. was made larger than the cohesive force of the ink layer, thereby ensuring that only the portion of the ink layer that was heated during transfer was transferred onto the transfer target, and the ink layer of the non-heated portion remained on the substrate side. .
【0007】上記剥離制御層に使用する熱可塑性樹脂と
しては、例えば、ポリエステル樹脂、ポリ酢酸ビニル、
ポリスチレン、セルロースエステル類、セルロースエー
テル類、アクリル系樹脂、スチレン−ブタジエン共重合
体などがあげられる。[0007] Examples of the thermoplastic resin used in the peel control layer include polyester resin, polyvinyl acetate,
Examples include polystyrene, cellulose esters, cellulose ethers, acrylic resins, and styrene-butadiene copolymers.
【0008】また、フィラーとしては、比較的透明性の
高いものが適しており、例えば、炭酸カルシウム、酸化
ケイ素、クレー、炭酸マグネシウム、コロイダルシリカ
、カオリン、アエロジル、ホワイトカーボンなどが用い
られる。[0008] Fillers with relatively high transparency are suitable, such as calcium carbonate, silicon oxide, clay, magnesium carbonate, colloidal silica, kaolin, aerosil, white carbon, and the like.
【0009】剥離制御層中において、フィラーの量は5
〜50重量%の範囲が好ましい。剥離制御層中における
フィラーの量が5重量%より少ないときは基体と剥離制
御層との接着力が強すぎてインク層の転写性が悪くなり
、フィラーの含有量が50重量%より多いときは基体と
剥離制御層との接着力がインク層の凝集性より小さくな
り、インク層の切れが悪くなる。In the release control layer, the amount of filler is 5
A range of 50% by weight is preferred. When the amount of filler in the release control layer is less than 5% by weight, the adhesive force between the substrate and the release control layer is too strong, resulting in poor transferability of the ink layer, and when the content of filler is more than 50% by weight, The adhesive force between the substrate and the release control layer becomes smaller than the cohesiveness of the ink layer, making it difficult to cut the ink layer.
【0010】上記剥離制御層の形成方法は、特に限定さ
れるものではないが、通常、ソルベントコーティング方
式による形成方法が採用される。[0010] The method of forming the above-mentioned peeling control layer is not particularly limited, but a solvent coating method is usually employed.
【0011】つまり、熱可塑性樹脂を溶媒に溶解させ、
その溶液にフィラーを均一に分散させて剥離制御層形成
用の塗材を調製し、この剥離制御層形成用の塗材を基体
の一方の面に塗布し、乾燥することによって、剥離制御
層が形成される。That is, the thermoplastic resin is dissolved in a solvent,
A filler is uniformly dispersed in the solution to prepare a coating material for forming a peeling control layer, and this coating material for forming a peeling control layer is applied to one side of the substrate and dried to form a peeling control layer. It is formed.
【0012】この剥離制御層の厚みとしては0.3〜0
.5μmの範囲が好ましく、厚みが0.3μmより薄く
なると、非加熱部分のインク層の基体からの剥離を制御
する効果が充分に発揮されず、また、厚みが0.5μm
より厚くなると、転写のための加熱時にインク層への熱
伝導が悪くなり、インク層の転写不良が生じるおそれが
ある。[0012] The thickness of this peeling control layer is 0.3 to 0.
.. The thickness is preferably in the range of 5 μm; if the thickness is less than 0.3 μm, the effect of controlling the peeling of the ink layer in the non-heated portion from the substrate will not be sufficiently exhibited;
If it becomes thicker, heat conduction to the ink layer during heating for transfer will be poor, and there is a risk that defective transfer of the ink layer will occur.
【0013】そして、感熱転写体は上記剥離制御層上に
インク層を形成することによって作製される。つまり、
できあがった状態の感熱転写体でいえば、剥離制御層は
基体とインク層との間に設けられている。[0013]Thermal transfer material is produced by forming an ink layer on the above-mentioned release control layer. In other words,
In the finished thermal transfer member, the release control layer is provided between the substrate and the ink layer.
【0014】上記剥離制御層は熱可塑性樹脂とフィラー
との混合物を主材として構成されるが、この主材として
構成するとは、熱可塑性樹脂とフィラーとの混合物のみ
で剥離制御層を構成する場合と、剥離制御層の作用を損
なわない範囲で添加剤を熱可塑性樹脂とフィラーに加え
て剥離制御層を構成する場合とを意味する。[0014] The above-mentioned peeling control layer is composed mainly of a mixture of a thermoplastic resin and a filler, but being composed as a main material means that the peeling control layer is composed only of a mixture of a thermoplastic resin and a filler. This means a case where the release control layer is formed by adding additives to the thermoplastic resin and filler within a range that does not impair the function of the release control layer.
【0015】そのような添加剤としては、例えば、熱可
塑性樹脂中へのフィラーの分散を良くするための分散剤
や界面活性剤などが挙げられる。これらの添加剤を添加
する場合、その量は剥離制御層中5重量%以下にとどめ
ることが好ましい。Examples of such additives include dispersants and surfactants for improving the dispersion of the filler into the thermoplastic resin. When these additives are added, the amount thereof is preferably kept at 5% by weight or less in the release control layer.
【0016】本発明の感熱転写体において、基体やイン
ク層に関しては、従来同様の手段が採用される。例えば
、基体にはポリエチレンテレフタレートフィルム、ポリ
イミドフィルムなどをはじめ、感熱転写体の基体として
使用可能な各種のものを用いることができる。また、イ
ンク層の形成にあたっても感熱転写体のインクとして使
用可能な各種のインクを用いることができる。In the heat-sensitive transfer member of the present invention, the same conventional methods are employed for the substrate and the ink layer. For example, the substrate may be a polyethylene terephthalate film, a polyimide film, or any other material that can be used as a substrate for a heat-sensitive transfer material. Furthermore, in forming the ink layer, various inks that can be used as inks for thermal transfer members can be used.
【0017】さらに、基体の熱による劣化を防止するた
めに、基体の背面側(つまり、剥離制御層やインク層の
形成面とは反対側の面)に、耐熱層を形成することなど
もできる。Furthermore, in order to prevent deterioration of the substrate due to heat, a heat-resistant layer may be formed on the back side of the substrate (that is, the surface opposite to the surface on which the peeling control layer and ink layer are formed). .
【0018】[0018]
【実施例】つぎに、実施例を挙げて本発明をより具体的
に説明する。[Examples] Next, the present invention will be explained in more detail with reference to Examples.
【0019】実施例1
芳香族系エステル含有ポリウレタン(東洋紡績社製バイ
ロンUR8200、商品名)35重量部、脂肪族ポリカ
ーボネート(旭硝子社製S−8200、商品名)35重
量部およびカーボン粉末(三菱化成社製MA−8、商品
名)30重量部を150重量部の溶媒(メチルイソブチ
ルケトンとトルエンとの重量比1:1の混合溶媒)にボ
ールミルにて100時間分散し、インク層形成用の塗材
とした。Example 1 35 parts by weight of aromatic ester-containing polyurethane (Vylon UR8200, trade name, manufactured by Toyobo Co., Ltd.), 35 parts by weight of aliphatic polycarbonate (S-8200, trade name, manufactured by Asahi Glass Co., Ltd.), and carbon powder (manufactured by Mitsubishi Kasei Co., Ltd.). 30 parts by weight of MA-8 (trade name) manufactured by Co., Ltd. was dispersed in 150 parts by weight of a solvent (a mixed solvent of methyl isobutyl ketone and toluene in a weight ratio of 1:1) for 100 hours in a ball mill, and then used as a coating for forming an ink layer. It was used as a material.
【0020】また、ポリエステル樹脂(東洋紡績社製バ
イロン#103、商品名)90重量部を1800重量部
の溶媒(メチルイソブチルケトンとトルエンとの重量比
1:1の混合溶媒)に溶解し、この溶液に平均粒径0.
7μmの炭酸カルシウム粉末10重量部を分散して剥離
制御層形成用の塗材を調製した。[0020] Also, 90 parts by weight of a polyester resin (Vylon #103 manufactured by Toyobo Co., Ltd., trade name) was dissolved in 1800 parts by weight of a solvent (a mixed solvent of methyl isobutyl ketone and toluene in a weight ratio of 1:1). The solution has an average particle size of 0.
A coating material for forming a peel control layer was prepared by dispersing 10 parts by weight of 7 μm calcium carbonate powder.
【0021】基体には、厚さ3.5μmのポリエチレン
テレフタレートフィルムを用い、この基体の一方の面に
アクリル−シリコン共重合体(東亜合成社製サイマック
210)に硬化剤を添加した耐熱材を0.4μmの厚み
に塗布して耐熱層を形成し、その反対側の面に上記剥離
制御層形成用の塗材を塗布し、乾燥して厚さ0.4μm
の剥離制御層を形成した。A polyethylene terephthalate film with a thickness of 3.5 μm is used as the base, and one side of the base is coated with a heat-resistant material made of acrylic-silicon copolymer (Cymac 210 manufactured by Toagosei Co., Ltd.) with a hardening agent added. .4 μm thick to form a heat-resistant layer, and on the opposite side, apply the above coating material for forming a peel control layer and dry to a thickness of 0.4 μm.
A peel control layer was formed.
【0022】つぎに、上記剥離制御層上に前記インク層
形成用の塗材を塗布し、乾燥して厚さ2.3μmのイン
ク層を形成することにより、図1に示す感熱転写体を作
製した。Next, the coating material for forming the ink layer was applied onto the peeling control layer and dried to form an ink layer with a thickness of 2.3 μm, thereby producing the heat-sensitive transfer member shown in FIG. did.
【0023】図1について説明すると、1は基体、2は
インク層、3は剥離制御層、4は耐熱層である。Referring to FIG. 1, 1 is a substrate, 2 is an ink layer, 3 is a release control layer, and 4 is a heat-resistant layer.
【0024】基体1は厚さ3.5μmのポリエチレンテ
レフタレートフィルムからなるものであり、インク層2
は前記インク層形成用の塗材を剥離制御層3上に塗布、
乾燥して形成したものであって、その厚みは2.3μm
である。ただし、インク層形成用の塗材中の溶媒は、イ
ンク層2の形成時の乾燥工程により除去されているので
、インク層2中には含まれていない。The substrate 1 is made of a polyethylene terephthalate film with a thickness of 3.5 μm, and the ink layer 2
Coating the coating material for forming the ink layer on the release control layer 3,
It is formed by drying, and its thickness is 2.3 μm.
It is. However, the solvent in the coating material for forming the ink layer is not contained in the ink layer 2 because it has been removed in the drying process during the formation of the ink layer 2.
【0025】剥離制御層3は、前記剥離制御層形成用の
塗材を基体1の一方の面に塗布、乾燥することによって
形成されたものであり、その厚みは0.4μmである。
ただし、剥離制御層形成用の塗材中の溶媒は、剥離制御
層3の形成時の乾燥工程により除去されているので、剥
離制御層3中には含まれていない。The peel control layer 3 is formed by applying the coating material for forming the peel control layer on one side of the substrate 1 and drying it, and has a thickness of 0.4 μm. However, the solvent in the coating material for forming the peel control layer is not contained in the peel control layer 3 because it has been removed in the drying process during the formation of the peel control layer 3.
【0026】耐熱層4は、基体1のインク層2などが形
成された面とは反対側の面に形成されている。ただし、
この耐熱層4は、基体1が充分な耐熱性を有している場
合には、必ずしも必要なものではない。The heat-resistant layer 4 is formed on the surface of the substrate 1 opposite to the surface on which the ink layer 2 and the like are formed. however,
This heat-resistant layer 4 is not necessarily necessary if the base body 1 has sufficient heat resistance.
【0027】実施例2
剥離制御層3がポリエステル樹脂80重量部と平均粒径
0.7μmの酸化ケイ素粉末20重量部との混合物から
なることを除いては、実施例1と同様の感熱転写体を作
製した。Example 2 Thermal transfer material was the same as in Example 1, except that the release control layer 3 was made of a mixture of 80 parts by weight of polyester resin and 20 parts by weight of silicon oxide powder having an average particle size of 0.7 μm. was created.
【0028】上記剥離制御層3について詳しく説明する
と、剥離制御層形成用の塗材は、実施例1と同様のポリ
エステル樹脂80重量部を1800重量部の溶媒(メチ
ルイソブチルケトンとトルエンとの重量比1:1の混合
溶媒)に溶解させ、この溶液に平均粒径0.7μmの酸
化ケイ素粉末20重量部を均一に分散させることによっ
て調製した。To explain in detail about the peel control layer 3, the coating material for forming the peel control layer was prepared by mixing 80 parts by weight of the same polyester resin as in Example 1 with 1800 parts by weight of a solvent (weight ratio of methyl isobutyl ketone and toluene). It was prepared by dissolving 20 parts by weight of silicon oxide powder having an average particle size of 0.7 μm in this solution.
【0029】そして、剥離制御層3は厚みが0.4μm
であり、その形成は実施例1と同様の基体1の一方の面
に上記剥離制御層形成用の塗材を塗布、乾燥することに
より行った。The peeling control layer 3 has a thickness of 0.4 μm.
The coating material for forming the peel control layer was applied to one side of the substrate 1 in the same manner as in Example 1, and the coating material was dried.
【0030】比較例1
剥離制御層3を形成することなく、基体1上にインク層
2を直接形成したほかは、実施例1と同様にして感熱転
写体を作製した。Comparative Example 1 A thermal transfer member was produced in the same manner as in Example 1, except that the ink layer 2 was directly formed on the substrate 1 without forming the peel control layer 3.
【0031】この比較例1の感熱転写体は、従来品に相
当するものであり、その断面構造は図2に示す通りであ
る。The thermal transfer member of Comparative Example 1 corresponds to a conventional product, and its cross-sectional structure is as shown in FIG.
【0032】図2において、1は基体、2はインク層、
4は耐熱層であり、これらの構成は実施例1の場合と同
じである。In FIG. 2, 1 is a substrate, 2 is an ink layer,
4 is a heat-resistant layer, the structure of which is the same as in the first embodiment.
【0033】比較例2
剥離制御層3に代えてポリエステル樹脂のみの層を形成
したほかは、実施例1と同様にして感熱転写体を作製し
た。使用したポリエステル樹脂は実施例1の場合と同じ
ものである。Comparative Example 2 A heat-sensitive transfer member was produced in the same manner as in Example 1, except that a layer made only of polyester resin was formed in place of the peel control layer 3. The polyester resin used was the same as in Example 1.
【0034】上記実施例1〜2および比較例1〜2の感
熱転写体を用い、印加エネルギー35mj/mm2 で
サーマルヘッドの1ドットの大きさ120μm×120
μmのプリンターにより、ポリエステル樹脂で表面処理
した紙に1ドット毎の転写を行い、その転写面積を測定
した。Using the thermal transfer members of Examples 1 and 2 and Comparative Examples 1 and 2 above, the size of one dot of the thermal head was 120 μm×120 with an applied energy of 35 mj/mm2.
Each dot was transferred onto paper surface-treated with polyester resin using a μm printer, and the transfer area was measured.
【0035】測定した転写面積のサーマルヘッドの面積
に対する比率(転写面積率)を下記の式により算出し、
この転写面積率によって実施例1〜2および比較例1〜
2の感熱転写体の解像度を評価した。The ratio of the measured transfer area to the area of the thermal head (transfer area ratio) is calculated using the following formula,
According to this transfer area ratio, Examples 1 and 2 and Comparative Examples 1 and 2
The resolution of the thermal transfer material No. 2 was evaluated.
【0036】つまり、転写面積率が100%に近いもの
は、印字しようとする文字などがほぼ予定通りに印字さ
れることを示しており、解像度が高く印字品質の良好な
感熱転写体であると判断される。[0036] In other words, when the transfer area ratio is close to 100%, it means that the characters to be printed are printed almost as planned, and this indicates that the thermal transfer material has high resolution and good print quality. be judged.
【0037】上記転写面積率の算出にあたって使用され
た式は次の通りである。
転写面積率(%)=S1 /S0 ×100S1 :転
写面積
S0 :サーマルヘッドの面積The formula used to calculate the transfer area ratio is as follows. Transfer area ratio (%) = S1 / S0 × 100 S1: Transfer area S0: Area of thermal head
【0038】実施例1〜2および比較例1〜2の感熱転
写体について求めた転写面積率を表1に示す。転写面積
の測定は各感熱転写体とも10回ずつ行っており、表1
にはそれに基づいて求められた転写面積率の最小値から
最大値までの範囲で示す。また、表1には、剥離制御層
中のフィラー量および樹脂量(いずれの場合もポリエス
テル樹脂の量である)をあわせて示す。Table 1 shows the transfer area ratios determined for the thermal transfer members of Examples 1 and 2 and Comparative Examples 1 and 2. The transfer area was measured 10 times for each thermal transfer material, and Table 1
shows the range from the minimum value to the maximum value of the transfer area ratio determined based on it. Table 1 also shows the amount of filler and the amount of resin (in both cases, the amount of polyester resin) in the release control layer.
【0039】[0039]
【表1】[Table 1]
【0040】表1に示す結果から明らかなように、実施
例1〜2の感熱転写体は転写面積率が100%に近い適
正な範囲内にとどまっており、解像度が高く良好な印字
品質が得られることを示していた。これは、実施例1〜
2の感熱転写体では、基体とインク層との間に剥離制御
層を設けたことによって、非加熱部分のインク層の剥離
が制御されたためである。As is clear from the results shown in Table 1, the transfer area ratio of the thermal transfer materials of Examples 1 and 2 remained within an appropriate range close to 100%, and high resolution and good print quality were obtained. It showed that it would be possible. This is Example 1~
This is because in the thermal transfer member No. 2, the peeling of the ink layer in the non-heated portion was controlled by providing a peeling control layer between the base and the ink layer.
【0041】これに対し、比較例1の感熱転写体は転写
面積率が63〜124%と大きくバラツイていた。これ
は、比較例1の感熱転写体では、基体上に直接インク層
を形成しているので、転写時に非加熱部分のインク層が
加熱部分のインク層に伴って転写し、転写面積が大きく
なったり、あるいは基体とインク層との接着力がインク
層の凝集力より大きすぎて印加エネルギーが不足したた
め、転写面積が小さくなったものと考えられる。On the other hand, the transfer area ratio of the thermal transfer member of Comparative Example 1 varied widely, ranging from 63 to 124%. This is because in the thermal transfer member of Comparative Example 1, the ink layer is formed directly on the substrate, so during transfer, the ink layer in the non-heated area is transferred along with the ink layer in the heated area, resulting in a larger transfer area. It is thought that the transfer area became small because the adhesive force between the substrate and the ink layer was too much greater than the cohesive force of the ink layer and the applied energy was insufficient.
【0042】また、比較例2の感熱転写体は転写面積率
が50〜70%と低かった。これは、比較例2の感熱転
写体では、基体とインク層との間にポリエステル樹脂の
層を設けているので、このポリエステル樹脂の層の凝集
力が高く、前記のような印加エネルギーでは充分な転写
ができなかったことによるものと考えられる。Further, the thermal transfer member of Comparative Example 2 had a low transfer area ratio of 50 to 70%. This is because in the thermal transfer material of Comparative Example 2, a polyester resin layer is provided between the substrate and the ink layer, so the cohesive force of this polyester resin layer is high, and the applied energy as described above is insufficient. This is thought to be due to the fact that transcription was not possible.
【0043】なお、この比較例2の感熱転写体では、印
加エネルギーを高めると、いわゆる面状剥離が生じて転
写面積率が100%を大きく超えるものと考えられる。In the thermal transfer member of Comparative Example 2, it is considered that when the applied energy is increased, so-called planar peeling occurs and the transfer area ratio greatly exceeds 100%.
【0044】[0044]
【発明の効果】以上説明したように、本発明では、基体
とインク層との間に剥離制御層を設けることによって、
解像度が高く印字品質の良好な感熱転写体を提供するこ
とができた。Effects of the Invention As explained above, in the present invention, by providing a peeling control layer between the substrate and the ink layer,
It was possible to provide a thermal transfer material with high resolution and good print quality.
【図1】本発明の感熱転写体の一実施例を示す断面図で
ある。FIG. 1 is a sectional view showing an embodiment of a thermal transfer member of the present invention.
【図2】従来の感熱転写体を示す断面図である。FIG. 2 is a sectional view showing a conventional thermal transfer body.
1 基体 2 インク層 3 剥離制御層 1 Base 2 Ink layer 3 Peeling control layer
Claims (2)
層2とを有する感熱転写体において、上記基体1とイン
ク層2との間に、熱可塑性樹脂とフィラーとの混合物を
主材とする剥離制御層3を設けたことを特徴とする感熱
転写体。1. A heat-sensitive transfer member having at least a base 1 and a heat-fusible ink layer 2, in which a peeling material mainly composed of a mixture of a thermoplastic resin and a filler is provided between the base 1 and the ink layer 2. A heat-sensitive transfer body characterized by providing a control layer 3.
0重量%である請求項1記載の感熱転写体。[Claim 2] The amount of filler in the peeling control layer 3 is 5 to 5.
The thermal transfer member according to claim 1, wherein the amount is 0% by weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3125185A JPH04327989A (en) | 1991-04-26 | 1991-04-26 | Thermal transfer material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3125185A JPH04327989A (en) | 1991-04-26 | 1991-04-26 | Thermal transfer material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04327989A true JPH04327989A (en) | 1992-11-17 |
Family
ID=14904014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3125185A Pending JPH04327989A (en) | 1991-04-26 | 1991-04-26 | Thermal transfer material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04327989A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08300828A (en) * | 1995-05-02 | 1996-11-19 | Kao Corp | Thermal transfer recording medium |
JP2006256187A (en) * | 2005-03-18 | 2006-09-28 | Dainippon Printing Co Ltd | Thermal transfer sheet |
JP2007030504A (en) * | 2005-06-20 | 2007-02-08 | Dainippon Printing Co Ltd | Thermal transfer sheet |
JP2008155612A (en) * | 2006-09-29 | 2008-07-10 | Dainippon Printing Co Ltd | Thermal transfer sheet |
US8546303B2 (en) | 2005-12-09 | 2013-10-01 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet |
-
1991
- 1991-04-26 JP JP3125185A patent/JPH04327989A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08300828A (en) * | 1995-05-02 | 1996-11-19 | Kao Corp | Thermal transfer recording medium |
JP2006256187A (en) * | 2005-03-18 | 2006-09-28 | Dainippon Printing Co Ltd | Thermal transfer sheet |
JP2007030504A (en) * | 2005-06-20 | 2007-02-08 | Dainippon Printing Co Ltd | Thermal transfer sheet |
US8546303B2 (en) | 2005-12-09 | 2013-10-01 | Dai Nippon Printing Co., Ltd. | Thermal transfer sheet |
JP2008155612A (en) * | 2006-09-29 | 2008-07-10 | Dainippon Printing Co Ltd | Thermal transfer sheet |
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