JPH0548756B2 - - Google Patents
Info
- Publication number
- JPH0548756B2 JPH0548756B2 JP60175799A JP17579985A JPH0548756B2 JP H0548756 B2 JPH0548756 B2 JP H0548756B2 JP 60175799 A JP60175799 A JP 60175799A JP 17579985 A JP17579985 A JP 17579985A JP H0548756 B2 JPH0548756 B2 JP H0548756B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- recording medium
- transfer recording
- medium according
- resin
- 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
- 239000010410 layer Substances 0.000 claims description 30
- 239000001993 wax Substances 0.000 claims description 24
- 239000000839 emulsion Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 13
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 239000003086 colorant Substances 0.000 claims description 11
- 229920000573 polyethylene Polymers 0.000 claims description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 10
- 229920013716 polyethylene resin Polymers 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- 239000013032 Hydrocarbon resin Substances 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 229920006270 hydrocarbon resin Polymers 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 150000003505 terpenes Chemical class 0.000 claims description 3
- 235000007586 terpenes Nutrition 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 229920006255 plastic film Polymers 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims 1
- 239000000123 paper Substances 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 7
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 150000004665 fatty acids Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 239000004200 microcrystalline wax Substances 0.000 description 5
- 239000012170 montan wax Substances 0.000 description 5
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000004203 carnauba wax Substances 0.000 description 4
- 235000013869 carnauba wax Nutrition 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000975 dye Substances 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 235000019808 microcrystalline wax Nutrition 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 235000019809 paraffin wax Nutrition 0.000 description 3
- 235000019271 petrolatum Nutrition 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000010775 animal oil Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000008158 vegetable oil Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001334 alicyclic compounds Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229920006271 aliphatic hydrocarbon resin Polymers 0.000 description 1
- 229920006272 aromatic hydrocarbon resin Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 238000007757 hot melt coating Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
- B41M5/38214—Structural details, e.g. multilayer systems
-
- 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
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/392—Additives, other than colour forming substances, dyes or pigments, e.g. sensitisers, transfer promoting agents
- B41M5/395—Macromolecular additives, e.g. binders
-
- 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
- B41M5/423—Intermediate, backcoat, or covering layers characterised by non-macromolecular compounds, e.g. waxes
-
- 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
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Description
産業上の利用分野
本発明はサーマルフアクシミリやサーマルプリ
ンタなどの感熱転写記録装置に使用される感熱転
写記録媒体に関するものである。
従来の技術
近年騒音の面及び取り扱い性の面より、ノンイ
ンパクトタイプの感熱記録方式が注目を浴びてい
るが、従来から利用されている感熱記録方式は騒
音もなく、現像や定着が不用であり、取り扱いは
容易であるが、記録の改ざん性や保存性に問題が
あつた。
それらの欠点を改良する為に、基材上に熱溶融
性インク層を設け、該熱溶融性インク層と受理紙
（記録紙）とを重ね合せて、前記基材の上からサ
ーマルヘツドで加熱し、上記熱溶融性インク層を
溶融させて普通紙からなる受理紙に転移させる感
熱転写記録方法が提案されている。
発明が解決しようとする問題点
しかしながら、この感熱転写記録方法において
も、普通紙からなる受理紙の平滑度が高い時は良
好な印字が得られるが平滑度が低い時、例えば、
ベツク平滑度が50秒以下の時は、受理紙の表面の
凹凸により、熱溶融性インク層が受理紙と接触す
る部分と接触しない部分が出来、その為転写効率
が悪くなつてボイドが発生し鮮明性が悪くなり、
その上熱溶融性インクの流動性が高い為、熱溶融
性インクが受理紙の内部へ浸透し濃度不足も発生
し、良好な印字が得られなかつた。
問題点を解決するための手段
本発明は、耐熱性基材に感熱離型層及び感熱転
写インク層を順次積層して設けた感熱転写記録媒
体において、感熱転写インク層が
○イ 融点又は軟化点が60〜150℃、分子量が1000
〜100000、針入度が20以下（25℃において）、
溶融粘度が100〜10000cps（140℃において）で
あるポリエチレン樹脂、
○ロ 融点が50〜110℃のワツクス、
○ハ 着色剤
から主としてなり、かつ、
ポリエチレン樹脂とワツクス及び着色剤がそれ
ぞれ乾燥後の重量比で、50〜80重量％、０〜30重
量％、５〜45重量％であることを特徴とする感熱
転写記録媒体である。
すなわち、ある特定の樹脂、及びワツクスと着
色剤を組み合せることにより、これらの相互作用
で、転写効率が高く、ボイドの発生のない、かつ
濃度の高い鮮明な印字が得られることをみいだし
た。
この組み合せ以外では転写効率が高くボイドの
発生はないが、濃度が劣る印字しか得られなかつ
たり、濃度は高いが転写効率が悪くボイドの多い
不鮮明な印字しか得られなくなる。
本発明に使用しうる耐熱性基材は、グラシン
紙、コンデンサー紙等の20μ以下の薄紙、又は、
ポリエステル、ポリイミド、ナイロン、ポリプロ
ピレン等の耐熱性のある10μ以下のフイルムであ
るが、好適には２〜10μのプラスチツクフイルム
が良い。耐熱性基材の耐熱性を高めるため耐熱保
護層を設けることができる。
本発明に使用しうる感熱転写インク層のポリエ
チレンとしては、酸価５〜30である酸化タイプの
低分子量ポリエチレン、酢酸ビニルが５〜40重量
％共重合された共重合タイプの低分子量ポリエチ
レン、有機酸（例えばアクリル酸）が５〜15重量
％共重合された共重合タイプの低分子量ポリエチ
レン及びそれらのエマルジヨン又はデイスパージ
ヨンが使用しうる。
本発明に使用できる感熱転写インク層のワツク
スとしては、融点が50〜110℃のパラフインワツ
クス、マイクロクリスタリンワツクス、カルナバ
ワツクス、セラツクワツクス、モンタンワツク
ス、高級脂肪酸が使用できる。
また、そのエマルジヨンも使用しうる。例えば
本発明に使用しうるワツクスエマルジヨンとして
は上記と同様のパラフインワツクス、マイクロク
リスタリンワツクス、カルナバワツクス、セラツ
クワツクス、及びモンタンワツクスのエマルジヨ
ンがある。
本発明に使用し得る感熱転写インク層の着色剤
はカーボンブラツク、酸化鉄、紺青、レーキレツ
ド、および酸化チタン等の顔料、さらに、塩基性
ベース染料およびネオザポン染料等の染料であ
る。
その他の感熱転写インク層の成分としては、炭
酸カルシウム、クレー等の体質顔料が充填剤とし
て、また、各種動・植物性油、鉱油等が柔軟剤と
して適宜使用できる。
なお、感熱ヘツドのエネルギーを少くするた
め、基材と感熱転写インク層の間に感熱離型層を
設けることは有効な方法であり、離型層の形成に
は、シリコーン、セルロース類、ワツクス類が単
独または混合で使用されたり、あるいは、その中
にカーボンブラツク、炭酸カルシウム、クレーお
よびタルク等の顔料を分散したものが使用され
る。
特に50〜100℃で溶融する離型層がよく、その
好ましい例として次のものを挙げることができ
る。
Ａ：ワツクス 90〜40wt％
熱可塑性樹脂 ０〜40 〃
柔軟剤 ０〜30 〃
Ｂ：ワツクス 100〜30wt％ mp.50〜100℃
１種以上の熱可塑性樹脂
10〜60 〃 〃60〜150℃
柔軟剤 ０〜30 〃 常温で液状
Ｃ：ロジン及びその誘導体、テルペン樹脂、炭化
水素樹脂、α−メチルスチレン−ビニルトル
エン共重合体、低分子量スチレン樹脂、及び
クマロン・インデン樹脂から選ばれた１種以
上からつくられる。
Ｄ：ワツクスエマルジヨン
本発明に使用しうる50〜100℃で溶融する離型
層の材料としては、
ワツクスとして、
パラフインワツクス
マイクロクリスタリンワツクス
カルナバワツクス
セラツクワツクス
モンタンワツクス
高級脂肪酸
高級脂肪酸アミド
高級アルコール等
高級脂肪酸金属石ケン
ワツクスエマルジヨンとしては上記各種ワツク
スのエマルジヨンが使用できる。
熱可塑性樹脂としては、
●エチレン−酢ビ共重合体
●ポリアミド
●ポリエチレン
●ポリエステル
溶融時低粘度になる樹脂として、
●ロジン及びその誘導体
●テルペン樹脂
●脂肪族系、芳香族系、脂肪族／芳香族共重合
体、脂環式化合物等の炭化水素樹脂、
●α−メチルスチレン−ビニルトルエン共重合
体
●低分子量スチレン樹脂、
●クマロン・インデン樹脂
があり、単独又は併用して使用すればよいが、水
添炭化水素樹脂、低分子量スチレン樹脂を使用す
れば好い結果を得る。
柔軟剤としては各種動物性、植物性又は鉱物性
の油が使用できる。
また耐熱性基材の耐熱保護層には高級脂肪酸、
弗素樹脂、あるいはシリコン樹脂等が使用され
る。
感熱転写記録媒体の製法は、次のようである。
まず、耐熱性基材に前述のワツクス、熱可塑性
樹脂、柔軟剤、又はワツクス・エマルジヨン、又
はスチレンオリゴマー、水添石油樹脂を混合又は
分散し、ホツトメルトコーテング又はソルベント
コーテイングにより塗布、乾燥して感熱離型層を
設ける。
次で、該感熱離型層上に、前述のポリエチレン
樹脂及びワツクス及び着色剤等を溶剤に分散又は
溶融分散して得られるインク塗剤を塗布すればよ
い。
また、エマルジヨン又はデイスパージヨンを使
用する場合は、ポリエチレンエマルジヨン及びワ
ツクスエマルジヨン着色剤を水にボールミル又は
アトライター等の分散機で分散してインク塗剤を
調製する。このとき、着色剤として市販の着色剤
デイスパージヨンを用いる場合には、単に上記成
分を混合、攪拌すればよい。
このインク塗剤を通常のホツトメルト系又はソ
ルベント系のコーテイングマシンで基材に塗布
し、固化又は乾燥する。基材の反対面に耐熱保護
層を設ける場合は、前述のものを溶剤に混合、分
散し、塗布、乾燥すれば良い。感熱転写インク層
の厚さは２〜10μである。
実施例
4μのPET（ポリエチレンテレフタレート）の上
面に脂肪酸アミドを塗布（1μ）して耐熱性保護
層を設け、他の面に各実施例のようにシリコン、
エチルセルロースポリアミド、ポリエチレン、ク
マロン−インデン等の樹脂及び／又はマイクロワ
ツクス、モンタンワツクス、マイクロワツクスエ
マルジヨン、モンタンワツクスエマルジヨン、可
塑剤等からなる塗剤を塗布して2μの感熱離型層
を設けた。
次で、該感熱離型層上に各実施例のように各種
の低分子量ポリエチレンからなる樹脂類及び／又
はカルナバワツクス、パラフインワツクス及びそ
れらエマルジヨンからなるワツクス類及び／又は
柔軟剤、着色剤からなる塗剤を塗布して4μの感
熱転写インク層を設けた。
INDUSTRIAL APPLICATION FIELD The present invention relates to a thermal transfer recording medium used in a thermal transfer recording device such as a thermal facsimile or a thermal printer. Conventional technology In recent years, non-impact type thermal recording methods have been attracting attention due to noise and ease of handling, but the conventional thermal recording methods are noiseless and do not require development or fixing. Although it is easy to handle, there are problems with the falsification and preservation of records. In order to improve these drawbacks, a heat-melting ink layer is provided on the base material, the heat-melting ink layer and receiving paper (recording paper) are placed on top of each other, and then heated from above with a thermal head. However, a heat-sensitive transfer recording method has been proposed in which the heat-melt ink layer is melted and transferred to receiving paper made of plain paper. Problems to be Solved by the Invention However, even in this thermal transfer recording method, good printing can be obtained when the receiving paper made of plain paper has high smoothness, but when the smoothness is low, for example,
When the Beck smoothness is less than 50 seconds, the unevenness of the surface of the receiving paper creates areas where the heat-melting ink layer contacts the receiving paper and areas where it does not, resulting in poor transfer efficiency and the generation of voids. Clarity deteriorates,
Moreover, since the hot-melt ink has high fluidity, the hot-melt ink penetrates into the receiving paper, resulting in insufficient density, making it impossible to obtain good prints. Means for Solving the Problems The present invention provides a thermal transfer recording medium in which a heat-sensitive release layer and a heat-sensitive transfer ink layer are sequentially laminated on a heat-resistant base material, in which the heat-sensitive transfer ink layer has a melting point or a softening point. is 60~150℃, molecular weight is 1000
~100000, penetration is less than 20 (at 25℃),
Polyethylene resin with a melt viscosity of 100 to 10,000 cps (at 140℃), ○B Wax with a melting point of 50 to 110℃, ○C Mainly composed of a colorant, and the weight of each of the polyethylene resin, wax, and colorant after drying The thermal transfer recording medium is characterized in that the ratio is 50 to 80% by weight, 0 to 30% by weight, and 5 to 45% by weight. In other words, it was discovered that by combining a specific resin, wax, and colorant, the interaction between them allows for high transfer efficiency, no voids, and high-density, clear prints. . Other than this combination, the transfer efficiency is high and no voids occur, but only prints with poor density can be obtained, or the density is high but the transfer efficiency is poor and only unclear prints with many voids can be obtained. The heat-resistant base material that can be used in the present invention is thin paper of 20μ or less such as glassine paper or condenser paper, or
A heat-resistant film of 10 μm or less, such as polyester, polyimide, nylon, or polypropylene, is preferable, but a plastic film of 2 to 10 μm is preferable. A heat-resistant protective layer can be provided to increase the heat resistance of the heat-resistant base material. The polyethylene of the thermal transfer ink layer that can be used in the present invention includes oxidized type low molecular weight polyethylene with an acid value of 5 to 30, copolymerized type low molecular weight polyethylene copolymerized with 5 to 40% by weight of vinyl acetate, organic Copolymer type low molecular weight polyethylenes copolymerized with 5 to 15% by weight of acids (eg acrylic acid) and emulsions or dispersions thereof can be used. As the wax for the heat-sensitive transfer ink layer that can be used in the present invention, paraffin wax, microcrystalline wax, carnauba wax, Serat wax, montan wax, and higher fatty acid having a melting point of 50 to 110°C can be used. Emulsions thereof can also be used. For example, wax emulsions that can be used in the present invention include emulsions of paraffin wax, microcrystalline wax, carnauba wax, ceramic wax, and montan wax as described above. Coloring agents for the thermal transfer ink layer that can be used in the present invention include pigments such as carbon black, iron oxide, navy blue, lake red, and titanium oxide, as well as dyes such as basic base dyes and neozapon dyes. As other components of the heat-sensitive transfer ink layer, extender pigments such as calcium carbonate and clay can be used as fillers, and various animal/vegetable oils, mineral oils, etc. can be used as softeners. In addition, in order to reduce the energy of the heat-sensitive head, it is an effective method to provide a heat-sensitive mold release layer between the base material and the heat-sensitive transfer ink layer, and silicone, cellulose, wax, etc. are used alone or in combination, or in which pigments such as carbon black, calcium carbonate, clay and talc are dispersed. Particularly preferred are release layers that melt at 50 to 100°C, and preferred examples include the following. A: Wax 90-40wt% Thermoplastic resin 0-40 〃 Softener 0-30 〃 B: Wax 100-30wt% mp.50-100℃ One or more thermoplastic resins
10-60 〃 〃 60-150℃ Softener 0-30 〃 Liquid at room temperature C: Rosin and its derivatives, terpene resin, hydrocarbon resin, α-methylstyrene-vinyltoluene copolymer, low molecular weight styrene resin, and coumaron・Made from one or more selected indene resins. D: Wax emulsion Materials for the release layer that melt at 50 to 100°C that can be used in the present invention include: Parafine wax, Microcrystalline wax, Carnauba wax, Ceratology wax, Montan wax, Higher fatty acid, Higher fatty acid amide, High grade Alcohol, etc. Higher fatty acid metal soap As the wax emulsion, the various wax emulsions mentioned above can be used. Thermoplastic resins include: ●Ethylene-vinyl acetate copolymer ●Polyamide ●Polyethylene ●Polyester As resins that have low viscosity when melted, ●Rosin and its derivatives ●Terpene resin ●Aliphatic, aromatic, aliphatic/aromatic Hydrocarbon resins such as group copolymers and alicyclic compounds, α-methylstyrene-vinyltoluene copolymers, low molecular weight styrene resins, and coumaron/indene resins, which can be used alone or in combination. , hydrogenated hydrocarbon resins, and low molecular weight styrene resins can give good results. Various animal, vegetable or mineral oils can be used as softeners. In addition, the heat-resistant protective layer of the heat-resistant base material contains higher fatty acids,
Fluororesin, silicone resin, etc. are used. The method for manufacturing the thermal transfer recording medium is as follows. First, the above-mentioned wax, thermoplastic resin, softener, wax emulsion, styrene oligomer, or hydrogenated petroleum resin is mixed or dispersed on a heat-resistant base material, applied by hot melt coating or solvent coating, dried, and heat-sensitive. Provide a release layer. Next, an ink coating agent obtained by dispersing or melt-dispersing the above-mentioned polyethylene resin, wax, colorant, etc. in a solvent may be applied onto the heat-sensitive mold release layer. When an emulsion or a dispersion is used, an ink coating material is prepared by dispersing a polyethylene emulsion and a wax emulsion colorant in water using a dispersing machine such as a ball mill or attritor. At this time, if a commercially available colorant dispersion is used as the colorant, the above components may simply be mixed and stirred. This ink coating material is applied to a substrate using a conventional hot melt or solvent coating machine, and then solidified or dried. When providing a heat-resistant protective layer on the opposite side of the base material, the above-mentioned materials may be mixed in a solvent, dispersed, applied, and dried. The thickness of the thermal transfer ink layer is 2 to 10 microns. Example: Apply fatty acid amide (1μ) to the top surface of 4μ PET (polyethylene terephthalate) to provide a heat-resistant protective layer, and apply silicone to the other surface as in each example.
A coating agent made of resin such as ethyl cellulose polyamide, polyethylene, coumaron-indene, etc. and/or microwax, montan wax, microwax emulsion, montan wax emulsion, plasticizer, etc. is applied, and 2μ heat-sensitive mold release is performed. Layers were set up. Next, resins made of various low molecular weight polyethylenes and/or waxes made of carnauba waxes, paraffin waxes and emulsions thereof, and/or softeners and colorants are applied on the heat-sensitive mold release layer as in each example. A 4μ thick thermal transfer ink layer was provided by applying a coating material consisting of:
【表】
表中の○は存在を表わし、数値は重量部である。
[Table] In the table, ○ indicates the presence of the substance, and the numbers are parts by weight.
【表】【table】
【表】【table】
【表】
表中の○は存在を表わし、数値は重量部である。
[Table] In the table, ○ indicates the presence of the substance, and the numbers are parts by weight.
【表】
◎最良 ○良 △やや不良 ×不良
上記実施例に示す感熱転写記録媒体を
感熱プリンター；周期1.2ｍsec、
印加パルス幅0.9ｍsec、
電力0.5w／DOT
により
受理紙；ベツク平滑度16sec、
ハンマーミルボント紙
（JIS P8119）
に対し、試験を行つた。その結果、従来品である
実施例１〜２は、ボイドが多く、濃度が低いが、
実施例３〜19ではボイドは少く、濃度の高い良好
な印字が得られた。
発明の効果
本発明によりボイドが少なくかつ濃度の高い鮮
明な印字が得られる。[Table] ◎Best ○Good △Slightly poor ×Poor The thermal transfer recording medium shown in the above example was used as a thermal printer; period 1.2 msec, applied pulse width 0.9 msec, power 0.5 w/DOT; receiving paper; Beck smoothness 16 sec; hammer Tests were conducted on Milbont paper (JIS P8119). As a result, Examples 1 and 2, which are conventional products, had many voids and low concentration, but
In Examples 3 to 19, good printing with few voids and high density was obtained. Effects of the Invention According to the present invention, clear printing with few voids and high density can be obtained.
Claims (1)
層を順次積層して設けた感熱転写記録媒体におい
て、 感熱転写インク層が 融点又は軟化点が60〜150℃、分子量が1000
〜100000、針入度が20以下（25℃において）、
溶融粘度が100〜10000cps（140℃において）で
あるポリエチレン樹脂、 融点が50〜110℃のワツクス、 着色剤、 から主としてなり、かつ、 ポリエチレン樹脂とワツクス及び着色剤がそれ
ぞれ乾燥後の重量比で、50〜80重量％、０〜30重
量％、５〜45重量％であり、そして離型層が 融点が50〜110℃であるワツクス、 軟化点又は融点が60〜150℃である１種以上
の熱可塑性樹脂、及び 常温で液状の柔軟剤からなり、かつ、それぞ
れの重量比が100〜30wt％、10〜60wt％、０〜
30wt％である ことを特徴とする感熱転写記録媒体。 ２ 耐熱性基材がプラスチツクフイルムに耐熱保
護層を設けたものであることを特徴とする特許請
求の範囲第１項記載の感熱転写記録媒体。 ３ ポリエチレン樹脂が酸価５〜30のものである
酸化タイプの低分子量ポリエチレンである特許請
求の範囲第１項記載の感熱転写記録媒体。 ４ ポリエチレン樹脂が、酢酸ビニルが５〜40重
量％共重合された共重合タイプの低分子量ポリエ
チレンである特許請求の範囲第１項記載の感熱転
写記録媒体。 ５ ポリエチレン樹脂が有機酸が５〜15重量％共
重合された共重合タイプの低分子量ポリエチレン
である特許請求の範囲第１項記載の感熱転写記録
媒体。 ６ ポリエチレン樹脂がエマルジヨン及び／又は
水性デイスパージヨンであることを特徴とする特
許請求の範囲第１、３、４及び５項の何れか１項
に記載の感熱転写記録媒体。 ７ 感熱離型層が50〜100℃で溶融する離型層で
あることを特徴とする特許請求の範囲第１項記載
の感熱転写記録媒体。 ８ 離型層が、ワツクス、熱可塑性樹脂及び柔軟
剤からなり、かつその重量比が40〜90wt％、０
〜40wt％、０〜30wt％であることを特徴とする
特許請求の範囲第１項又は第７項記載の感熱転写
記録媒体。 ９ 離型層が、ロジン及びその誘導体、テルペン
樹脂、炭化水素樹脂、α−メチルスチレン−ビニ
ルトルエン共重合体、低分子量スチレン樹脂、及
びクマロン・インデン樹脂から選ばれた１種以上
からつくられていることを特徴とする特許請求の
範囲第１項又は第７項記載の感熱転写記録媒体。 １０ 離型層がワツクスエマルジヨンであること
を特徴とする特許請求の範囲第１項又は第７項記
載の感熱転写記録媒体。[Scope of Claims] 1. A heat-sensitive transfer recording medium in which a heat-sensitive release layer and a heat-sensitive transfer ink layer are sequentially laminated on a heat-resistant base material, wherein the heat-sensitive transfer ink layer has a melting point or softening point of 60 to 150°C and a molecular weight. is 1000
~100000, penetration is less than 20 (at 25℃),
It mainly consists of a polyethylene resin with a melt viscosity of 100 to 10,000 cps (at 140°C), a wax with a melting point of 50 to 110°C, and a colorant, and the weight ratio of the polyethylene resin, wax, and colorant after drying, respectively. 50 to 80% by weight, 0 to 30% by weight, 5 to 45% by weight, and the release layer contains one or more waxes with a melting point of 50 to 110°C, a softening point or a melting point of 60 to 150°C. It consists of a thermoplastic resin and a softener that is liquid at room temperature, and the weight ratio of each is 100 to 30 wt%, 10 to 60 wt%, and 0 to 60 wt%.
A thermal transfer recording medium characterized by having a content of 30wt%. 2. The heat-sensitive transfer recording medium according to claim 1, wherein the heat-resistant base material is a plastic film provided with a heat-resistant protective layer. 3. The thermal transfer recording medium according to claim 1, wherein the polyethylene resin is an oxidized type low molecular weight polyethylene having an acid value of 5 to 30. 4. The thermal transfer recording medium according to claim 1, wherein the polyethylene resin is a copolymer type low molecular weight polyethylene in which 5 to 40% by weight of vinyl acetate is copolymerized. 5. The thermal transfer recording medium according to claim 1, wherein the polyethylene resin is a copolymer type low molecular weight polyethylene copolymerized with 5 to 15% by weight of an organic acid. 6. The thermal transfer recording medium according to any one of claims 1, 3, 4 and 5, wherein the polyethylene resin is an emulsion and/or an aqueous dispersion. 7. The heat-sensitive transfer recording medium according to claim 1, wherein the heat-sensitive release layer is a release layer that melts at 50 to 100°C. 8 The release layer consists of wax, a thermoplastic resin, and a softener, and the weight ratio thereof is 40 to 90 wt%, 0
8. The thermal transfer recording medium according to claim 1 or 7, characterized in that the content is 40 wt% and 0 to 30 wt%. 9. The release layer is made of one or more selected from rosin and its derivatives, terpene resin, hydrocarbon resin, α-methylstyrene-vinyltoluene copolymer, low molecular weight styrene resin, and coumaron-indene resin. 8. The thermal transfer recording medium according to claim 1 or 7, characterized in that: 10. The thermal transfer recording medium according to claim 1 or 7, wherein the release layer is a wax emulsion.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60175799A JPS6237189A (en) | 1985-08-12 | 1985-08-12 | Thermal transfer recording medium |
| AT86306209T ATE82551T1 (en) | 1985-08-12 | 1986-08-11 | HEAT SENSITIVE TRANSMISSION RECORDING MATERIAL. |
| EP19860306209 EP0214770B1 (en) | 1985-08-12 | 1986-08-11 | Heat sensitive transferring recording medium |
| AT91117525T ATE152401T1 (en) | 1985-08-12 | 1986-08-11 | HEAT SENSITIVE TRANSMISSION RECORDING MATERIAL |
| DE3650618T DE3650618T2 (en) | 1985-08-12 | 1986-08-11 | Heat sensitive transfer recording material |
| EP19910117525 EP0477996B1 (en) | 1985-08-12 | 1986-08-11 | Heat sensitive transferring recording medium |
| DE8686306209T DE3687138T2 (en) | 1985-08-12 | 1986-08-11 | HEAT SENSITIVE TRANSFER RECORDING MATERIAL. |
| US07/291,371 US4983445A (en) | 1985-08-12 | 1988-12-23 | Thermal printing ribbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60175799A JPS6237189A (en) | 1985-08-12 | 1985-08-12 | Thermal transfer recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6237189A JPS6237189A (en) | 1987-02-18 |
| JPH0548756B2 true JPH0548756B2 (en) | 1993-07-22 |
Family
ID=16002451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60175799A Granted JPS6237189A (en) | 1985-08-12 | 1985-08-12 | Thermal transfer recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6237189A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2634405B2 (en) * | 1986-12-23 | 1997-07-23 | ソニ−ケミカル株式会社 | Thermal transfer recording medium |
| JP2575122B2 (en) * | 1987-02-07 | 1997-01-22 | コニカ株式会社 | Manufacturing method of thermal transfer recording medium |
| JP2637092B2 (en) * | 1987-02-20 | 1997-08-06 | コニカ株式会社 | Manufacturing method of thermal transfer recording medium |
| JP2590338B2 (en) * | 1987-07-02 | 1997-03-12 | 株式会社パイロット | Thermal transfer media |
| JP2532566B2 (en) * | 1988-04-15 | 1996-09-11 | 三菱製紙株式会社 | Thermal transfer recording sheet |
| JP2823124B2 (en) * | 1988-05-19 | 1998-11-11 | フジコピアン株式会社 | Thermal transfer ink |
| JPH0214184A (en) * | 1988-06-30 | 1990-01-18 | Union Kemikaa Kk | Lith-type film material |
| JPH03219246A (en) * | 1989-08-11 | 1991-09-26 | Toyo Ink Mfg Co Ltd | Opaque material |
| JP2581228B2 (en) * | 1989-09-14 | 1997-02-12 | 凸版印刷株式会社 | Resin-type thermal transfer recording material |
| JP2692329B2 (en) * | 1990-03-23 | 1997-12-17 | 凸版印刷株式会社 | Resin-type thermal transfer recording material |
| JP2692330B2 (en) * | 1990-03-23 | 1997-12-17 | 凸版印刷株式会社 | Resin-type thermal transfer recording material |
| JPH0422683A (en) * | 1990-05-18 | 1992-01-27 | Toppan Printing Co Ltd | Resin base thermal transfer recording material |
| JPH0516547A (en) * | 1991-06-28 | 1993-01-26 | Naigai Kaaboninki Kk | Thermal transfer material |
| JPH0761143A (en) * | 1993-08-30 | 1995-03-07 | Fujicopian Co Ltd | Thermal transfer record medium |
| CN110447060A (en) * | 2017-03-31 | 2019-11-12 | 优泊公司 | The synthetic resin of label for in-mold molding and tape label |
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1985
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Also Published As
| Publication number | Publication date |
|---|---|
| JPS6237189A (en) | 1987-02-18 |
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