JPH0270495A - Lithography printing plate and manufacture thereof - Google Patents
Lithography printing plate and manufacture thereofInfo
- Publication number
- JPH0270495A JPH0270495A JP63222857A JP22285788A JPH0270495A JP H0270495 A JPH0270495 A JP H0270495A JP 63222857 A JP63222857 A JP 63222857A JP 22285788 A JP22285788 A JP 22285788A JP H0270495 A JPH0270495 A JP H0270495A
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- hydrophilic
- sheet
- layer containing
- layer
- 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.)
- Granted
Links
- 238000007639 printing Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 238000001459 lithography Methods 0.000 title 1
- 238000012546 transfer Methods 0.000 claims abstract description 47
- 239000000843 powder Substances 0.000 claims abstract description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 10
- 230000009477 glass transition Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 8
- 238000007645 offset printing Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 239000004840 adhesive resin Substances 0.000 abstract 2
- 229920006223 adhesive resin Polymers 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- 239000001993 wax Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000011161 development Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-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
- 239000006229 carbon black Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 238000007754 air knife coating Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000779 poly(divinylbenzene) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000120 polyethyl acrylate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002102 polyvinyl toluene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、ヒートモードで製版できる平版印刷版および
その製造方法に関するもので、特にコンピュータから直
接製版できる、いわゆるダイレクト製版材料に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a lithographic printing plate that can be made in a heat mode and a method for manufacturing the same, and particularly to a so-called direct plate-making material that can be made directly from a computer.
〈従来の技術〉
従来コンピュータのディジタルデータから直接製版する
システムとしては、（ア）レーザーのスキャンニング露
光と電子写真法を組み合わせたもの、＜４１ Ｃｏ、等
の大出力レーザのスキャンニングにより樹脂層等を変化
させるもの、（り）感光性樹脂と銀塩感材を積層させ、
Ａｒレーザのスキャンニング露光を行なうもの、（１）
半導体あるいはＨｅＮｅレーザで露光するシルバーマス
タータイプのもの等がある。<Prior art> Conventional systems for making plates directly from digital data on a computer include (a) a system that combines laser scanning exposure and electrophotography; etc., by laminating photosensitive resin and silver salt sensitive material,
A device that performs Ar laser scanning exposure, (1)
There are silver master types that are exposed using a semiconductor or HeNe laser.
（７）の方式では、電子写真法を用いるため帯電、露光
、現像の工程を少なくとも要し装置が複雑で、大がかり
になる。また乾式現像法は画質が悪く印刷には不向きで
あり、一方湿式現像法は労働衛生、危険性の上から好ま
しくない。さらに、トナー画像をレジストとして、非画
像部を除去する方式は、さらに湿式１程が増えるため、
好ましくない。In the method (7), since electrophotography is used, at least the steps of charging, exposure, and development are required, and the apparatus is complicated and large-scale. In addition, the dry development method has poor image quality and is unsuitable for printing, while the wet development method is unfavorable from the viewpoint of occupational health and danger. Furthermore, the method of removing the non-image area using the toner image as a resist will further increase the wet method.
Undesirable.
（イ）の方式は、Ｃｏｔ ＹＡＧレーザ等の大出力
レーザ自体が大がかりで、装置が巨大になり、消費エネ
ルギーも大きくなる。またこれらのレーザーの寿命等の
信鎖性も十分ではなかった。In the method (a), the high-output laser itself, such as a Cot YAG laser, is large-scale, resulting in a huge device and large energy consumption. Furthermore, reliability such as life span of these lasers was not sufficient.
（つ）の方式は、銀塩感材をＡｒレーザで感光させ、湿
式の現像で露光部を黒化させ、さらにＵＶを全面照射し
、湿式現像により感光性樹脂層を現像するものであるが
、工程が７１９ｆｔであるだけでなく、版材のコストも
高いという欠点があった。In method (1), a silver salt sensitive material is exposed to an Ar laser, the exposed areas are blackened by wet development, the entire surface is irradiated with UV, and the photosensitive resin layer is developed by wet development. However, not only did the process take 719 feet, but the cost of the plate material was also high.
（１）の方式は銀塩を使用するためコストが高く湿式現
像であるという欠点があった。Method (1) has the drawbacks of high cost and wet development because it uses silver salt.
一方、感熱溶融転写方式、すなわち薄い基板上にワック
スおよび顔料等からなる転写層を設けた転写シートと、
紙等の被転写体を重ね合わせ、転写シート側から感熱ヘ
ッド等で画像状に加熱し、転写層を被転写体に部分的に
転写する方式であるが、この方式は乾式で処理でき、工
程が簡単であるため装置が小型になり、メンテナンスも
不要であることから、プリンターの用途で広く用いられ
ている。また感熱ヘッドの高密度化への進歩は著しく、
印刷版としても使用できるレベルになりつつある。しか
し感熱溶融転写方式により親水性基板上に画像を転写し
たのみでは、平版印刷版とはならない。それは現状の転
写層はワックスをバインダーにしており印刷には、強度
が不足しており耐剛性がほとんどないからである。On the other hand, a transfer sheet using a heat-sensitive melt transfer method, in which a transfer layer made of wax, pigment, etc. is provided on a thin substrate,
This is a method in which transfer objects such as paper are placed one on top of the other, and the transfer sheet is heated from the transfer sheet side in an imagewise manner using a thermal head, etc., to partially transfer the transfer layer to the transfer object.This method can be processed dryly, and the process It is widely used in printers because it is simple, the device is small, and it requires no maintenance. In addition, there has been remarkable progress in increasing the density of thermal heads.
It is reaching a level where it can also be used as a printed version. However, simply transferring an image onto a hydrophilic substrate using a heat-sensitive melt transfer method does not result in a lithographic printing plate. This is because the current transfer layer uses wax as a binder and lacks strength and almost no rigidity for printing.
〈発明の目的〉
本発明者らは、以上のような欠点を解消すべく、平版印
刷版作製方法、および層構成に着目し、鋭意研究を重ね
た結果、本発明に至ったものである。<Object of the Invention> In order to eliminate the above-mentioned drawbacks, the present inventors have focused on the lithographic printing plate production method and the layer structure, and as a result of extensive research, they have arrived at the present invention.
本発明の目的は、小型の装置、および乾式処理により、
コンピュータのディジタルデータから直接製版可能なオ
フセット印刷版、およびその製造方法を、提供すること
である。The purpose of the present invention is to achieve
An object of the present invention is to provide an offset printing plate that can be made directly from digital data of a computer, and a method for manufacturing the same.
〈発明の概要〉
基板上にベックの平滑度が５００秒以上で親水性粉体と
結着剤樹脂を少なくとも含有し分散してなる親水層、さ
らに、画像状のガラス転移温度が５０℃から１１０“Ｃ
の範囲にある熱可塑性樹脂を含有する被親水層を順次設
けてなる平版印刷版および、基板上にへンクの平滑度が
５００秒以上で親水性粉体と結着剤樹脂を少なくとも含
有し、分散してなる親水層を設けた版シートと、基板上
に非親水性でガラス転移温度が５０℃からｌ ｌ Ｏ℃
の範囲にある熱可塑性樹脂を含有する転移層を少なくと
も設けた転写ソートを、ともに基板を外側にして重ね合
わせ、転写シート側から画像状に加熱し、転写層を部分
的に版シート上に転写することを特徴とする平版印刷版
の製造方法である。<Summary of the Invention> A hydrophilic layer containing and dispersing at least a hydrophilic powder and a binder resin with a Beck smoothness of 500 seconds or more on a substrate, and an image-like glass transition temperature of 50° C. to 110° C. “C
a lithographic printing plate formed by successively providing hydrophilic layers containing a thermoplastic resin in the range of , and a substrate having a henk smoothness of 500 seconds or more and containing at least a hydrophilic powder and a binder resin; A plate sheet with a dispersed hydrophilic layer and a non-hydrophilic layer with a glass transition temperature of 50°C to 10°C on a substrate.
The transfer sort, which has at least a transfer layer containing a thermoplastic resin in the range of This is a method for manufacturing a lithographic printing plate characterized by:
く作用〉
非親水層である転写層が、従来熱転写で用いられるワッ
クスではなくガラス転移温度が５０℃から１１０℃の範
囲にある熱可塑性樹脂であることから、機械的強度が高
（、またオフセットインキの）８剤である鉱油に対して
の化学的強度も高いため、オフセント印刷が可能である
。また、該熱可塑性樹脂はワックスより加熱的の粘度が
小さいため、被転写体の平滑性を要求するが、ベックの
平滑度が５００秒以上の面に対してはじめて画像が乱れ
ることなく転写することができる。画像状の加熱をサー
マルヘッドを用い、ディジタル情報に従いスキャンニン
グすることにより、コンピュータから直接オフセット印
刷版を製造することができる。The transfer layer, which is a non-hydrophilic layer, is made of a thermoplastic resin with a glass transition temperature in the range of 50°C to 110°C, rather than the wax conventionally used in thermal transfer, so it has high mechanical strength (and offset resistance). It also has a high chemical strength against mineral oil, which is an ink agent (8), making offset printing possible. In addition, since the thermoplastic resin has a lower thermal viscosity than wax, it requires smoothness of the transferred object, but it is difficult to transfer the image without disturbing it for the first time to a surface with a Beck smoothness of 500 seconds or more. Can be done. By scanning imagewise heating using a thermal head according to digital information, offset printing plates can be manufactured directly from a computer.
〈発明の詳述〉 以下、本発明の詳細な説明する。<Detailed description of the invention> The present invention will be explained in detail below.
版シートの基板としては、紙、アルミニウム等の金属板
、ポリエステルシートやポリ塩化ビニルのようなプラス
チックシートなどが使用できる。As the substrate of the plate sheet, paper, a metal plate such as aluminum, a plastic sheet such as a polyester sheet or polyvinyl chloride, etc. can be used.
親水性粉体としては、シリカ粒子、ゼオライト、アルミ
ナ、酸化チタン、酸化亜鉛、タルク、硫酸バリウム、炭
酸カルシウム等が挙げられるが、粒状性や、グレードの
選択性の広いシリカ粒子が好ましい。Examples of the hydrophilic powder include silica particles, zeolite, alumina, titanium oxide, zinc oxide, talc, barium sulfate, calcium carbonate, etc., but silica particles with a wide range of granularity and grade selectivity are preferred.
結着剤樹脂は、水に対して水溶性でありかつあまりイン
キ親和性のないものが好ましく、例えば、水酸基の残っ
ているブチラール樹脂や、カゼイン等水溶性樹脂をメラ
ミン架橋したもの、あるいは、親水性七ツマ−を含有す
る（メタ）アクリル系共重合体等が適用できる。また、
親水性粉体とのなじみ、すなわち分散しやすさから選択
することが好ましい。親水性粉体／結着剤樹脂の比は、
印刷時の保水性の確保から、６０ ／ ４０以上が適し
、特に７５／２５以上が好ましい。The binder resin is preferably one that is soluble in water and has little ink affinity; for example, a butyral resin with residual hydroxyl groups, a melamine-crosslinked water-soluble resin such as casein, or a hydrophilic resin. A (meth)acrylic copolymer containing a polyphenol can be used. Also,
It is preferable to select based on compatibility with hydrophilic powder, that is, ease of dispersion. The ratio of hydrophilic powder/binder resin is
In order to ensure water retention during printing, a ratio of 60/40 or more is suitable, and a ratio of 75/25 or more is particularly preferred.
ガラス転移温度が５０℃から１１０℃の範囲にある熱可
塑性樹脂としては、ポリエステル系樹脂、塩ビ系樹脂、
アクリル系樹脂、並びにビニル系樹脂から選択すること
ができる。例えば、ポリエステル系樹脂として飽和ポリ
エステル樹脂、塩ビ系樹脂としてポリ塩化ビニル樹脂、
ポリ塩酢ビ樹脂、アクリル系樹脂として、ポリエチルア
クリレート、ポリクロロアクリル酸メチル、ポリメチル
メタクリレート、ポリアクリロニトリル、ポリアクリロ
ニトリル、エチレン−エチルアクリレートコポリマー
アクリル−スチレンコポリマー ビニル系樹脂としてポ
リスチレン、ポリジビニルベンゼン、ポリビニルトルエ
ン、スチレン−ブタジェンコポリマー等を挙げることが
できる。ここで、被転写体すなわち、版シートとの接着
性向上のために、版シートの結着剤樹脂と同系統の樹脂
を一部あるいは全部選択することが好ましい。Thermoplastic resins with a glass transition temperature in the range of 50°C to 110°C include polyester resins, vinyl chloride resins,
It can be selected from acrylic resins and vinyl resins. For example, saturated polyester resin as polyester resin, polyvinyl chloride resin as vinyl chloride resin,
Polyvinyl acetate resin, acrylic resin such as polyethyl acrylate, polychloromethyl acrylate, polymethyl methacrylate, polyacrylonitrile, polyacrylonitrile, ethylene-ethyl acrylate copolymer
Acrylic-Styrene Copolymer Examples of the vinyl resin include polystyrene, polydivinylbenzene, polyvinyltoluene, and styrene-butadiene copolymer. Here, in order to improve the adhesion to the transfer target, that is, the plate sheet, it is preferable to select part or all of a resin of the same type as the binder resin of the plate sheet.
ガラス転移点が、１１０℃以上の樹脂では、通常のサー
マルヘッドの印字条件では容易に熱転写できず、印字エ
ネルギーを上げなければならない。With a resin having a glass transition point of 110° C. or higher, thermal transfer cannot be easily performed under printing conditions of a normal thermal head, and printing energy must be increased.
しかし、印字エネルギーを上げると転写シートの基板が
劣化し、ヘッドに付着するため好ましくない、また、５
０″Ｃ以下では熱転写後の機械的強度が不足し、印刷中
に剥離したり、尾引きしたりするため、良好な耐剛性が
得られない。However, increasing the printing energy deteriorates the substrate of the transfer sheet and causes it to adhere to the head, which is undesirable.
If it is less than 0''C, the mechanical strength after thermal transfer is insufficient, and peeling or trailing occurs during printing, so that good rigidity resistance cannot be obtained.
さらに転写層には、解像力の改善および画像の耐摩耗性
向上のために滑剤を添加することができる。具体的には
、例えばテフロンパウダー ポリエチレンパウダー、動
物系、植物系、を自系、および石油系等の天然ワックス
、合成炭化水素系等の合成ワンクスが挙げられる。Furthermore, a lubricant can be added to the transfer layer in order to improve the resolution and the abrasion resistance of the image. Specifically, examples include Teflon powder, polyethylene powder, animal-based waxes, plant-based waxes, natural waxes such as petroleum-based waxes, and synthetic waxes such as synthetic hydrocarbon-based waxes.
また、検版性付与のため、着色剤を添加することができ
る０着色剤としては、各種染料および顔料を用いること
ができるが、特に顔料は耐候性の点から好ましい、具体
的には、酸化チタン、炭酸カルシウム、アルミナ粉等の
無機物、オイルイエロー、オイルブラック、フタロシア
ニンブルー等の有機物、さらにカーボンブラック等を挙
げることができる。In addition, various dyes and pigments can be used as colorants that can be added to impart plate inspection properties, but pigments are particularly preferred from the viewpoint of weather resistance.Specifically, oxidation Examples include inorganic substances such as titanium, calcium carbonate, and alumina powder, organic substances such as oil yellow, oil black, and phthalocyanine blue, and carbon black.
本発明の転写層の組成比は特に制限されるものではない
が、好ましくは、固形分総量１００重量部に対して熱可
塑性樹脂が４０〜８０重量部、着色剤が１０〜３１１部
、溶剤が５〜３０重量部である。The composition ratio of the transfer layer of the present invention is not particularly limited, but preferably the thermoplastic resin is 40 to 80 parts by weight, the colorant is 10 to 311 parts, and the solvent is 100 parts by weight. It is 5 to 30 parts by weight.
転写シートの基板としては、耐熱強度を有し、寸法安定
性及び表面平滑性の高い支持体であれば使用可能である
が、好ましくは２〜１０μｍのポリエステルフィルムの
裏面にサーマルヘッドへのステ７キングを防止する層を
設けて成るものが用いられる。As the substrate for the transfer sheet, any support that has heat-resistant strength, dimensional stability, and surface smoothness can be used, but it is preferable to use a 2-10 μm polyester film with a step 7 on the back side for the thermal head. A material provided with a layer to prevent kinging is used.
版シートの基板への親水層の塗布及び、転写シートの基
板への転写層の塗布は、各組成物を均一に分散又は、溶
解した塗液をバー塗布、ブレード塗布、エアナイフ塗布
、グラビア塗布、又はロールコーティング塗布等の塗布
法により行うことができる。Application of the hydrophilic layer to the substrate of the plate sheet and application of the transfer layer to the substrate of the transfer sheet are performed by bar coating, blade coating, air knife coating, gravure coating, coating liquid in which each composition is uniformly dispersed or dissolved. Alternatively, it can be carried out by a coating method such as roll coating.
該版シートと転写シートをともに基板を外側にして重ね
合わせ、転写シート側から画像状に加熱し転写層を部分
的に版シートに転写することにより平版印刷版が得られ
る。この際、圧力は０．１〜１０ ｋｇ ／ ｃｉ ａ
度は、１１０℃以上が好ましい。また、画像状の加熱を
サーマルヘッドを用い、ディジタル情報に従いスキャン
ニングすることによりコンピュータから直接オフセット
Ｅｌｒ刷版を製造することができる。また、加熱の方法
は、感熱ヘッドによるほか、レーザのスキャニングやフ
ラッシュによる光熱変換を用いることもできる。A lithographic printing plate is obtained by stacking the plate sheet and the transfer sheet together with the substrate facing outside, and heating image-wise from the transfer sheet side to partially transfer the transfer layer to the plate sheet. At this time, the pressure is 0.1~10 kg/cia
The temperature is preferably 110°C or higher. Furthermore, offset Elr printing plates can be manufactured directly from a computer by performing image heating using a thermal head and scanning according to digital information. In addition to the heating method using a thermal head, it is also possible to use laser scanning or photothermal conversion using a flash.
〈実施例〉 以下、実施例により、本発明の詳細な説明する。<Example> Hereinafter, the present invention will be explained in detail with reference to Examples.
（実施例１）
組成 サイロイド２４４（富士デビソン社製シリカ粒子
）８０ｇ
エスレック（セキスイ化学社製ブチラール樹脂）２０ｇ
２−ブタノン ４００ｇの塗液を４
ｍφガラスピーズ４００ｇとともにベイントコンディシ
ョナーで１時間分散を行ない、親水層の２ｆｉとし、ケ
ミカルマット化処理した１００Ｈ１０ＯＨフイルム上に
乾燥膜厚３０ａｍになるようにバーコーターにて塗布し
、版シートとした。(Example 1) Composition Thyroid 244 (Silica particles manufactured by Fuji Davison Co., Ltd.) 80 g S-LEC (Butyral resin manufactured by Sekisui Chemical Co., Ltd.) 20 g 2-Butanone 400 g of coating liquid
The mixture was dispersed with 400 g of mφ glass beads in a vent conditioner for 1 hour to form a 2fi hydrophilic layer, and coated onto a chemically matted 100H10OH film to a dry film thickness of 30 am using a bar coater to form a plate sheet.
次に組成
カーボンブラック ２ｇＢＲ−
８０（三菱レーヨン製メタクリル樹脂）１ｇ
ＶＡＧＨ（ＵＣＣＣＣ製塩酢ビコポリマー ５ｇポリエ
チレンパウダー ２ｇ２−ブタノン
８０ｇの塗液をペイントコ
ンディショナーで１時間粉砕分散をｊテない、転写層塗
液とし、これをあらかじめ粗面にステンキング防止層を
設けてなる６μｍのポリエステルフィルム上にバーコー
ターにて、乾燥膜厚で４ｇ／ｃｊ塗布し転写シートとし
た。Next, the composition carbon black 2gBR-
80 (Mitsubishi Rayon methacrylic resin) 1g VAGH (UCCCC salt acetic acid vinyl copolymer 5g polyethylene powder 2g 2-butanone)
Grind and disperse 80g of the coating liquid in a paint conditioner for 1 hour to obtain a transfer layer coating liquid, and coat this with a bar coater on a 6μm polyester film, which has been coated with an anti-stenking layer on the rough surface, as a dry film. A transfer sheet was prepared by coating at a thickness of 4 g/cj.
得られた転写シートと版シートをともに基板を外側にし
て重ね合わせ、転写シート側から加熱されるように、サ
ーマルシュミレータ−（印字条件：印加電力０．４５Ｗ
／ｄｏｔ 、パルス幅２．５ ｍ５ｅｃ ０Ｎ１０
Ｆ Ｆ ）にかけ、転写層を版シートに部分的に熱転写
した。その結果、版シート上に良好な画像が形成され、
平版印刷版が作製された。The resulting transfer sheet and plate sheet were placed one on top of the other with the substrate on the outside, and heated using a thermal simulator (printing conditions: applied power: 0.45 W) so that the transfer sheet was heated from the side.
/dot, pulse width 2.5 m5ec 0N10
FF) to partially thermally transfer the transfer layer to the plate sheet. As a result, a good image is formed on the plate sheet,
A lithographic printing plate was prepared.
この平版印刷版を、−度水に浸漬し、親水層に水をなじ
ませた後、リョウビ印刷機械製オフセット印刷機ＡＤ−
８０に装着して、印刷を行ったところ、転写部にインキ
付着した良好な画像を有する印刷物が得られた。また１
０００枚目においても初期の画像と同等良好であった。This lithographic printing plate was immersed in water to allow the water to blend into the hydrophilic layer, and then applied to an offset printing machine AD manufactured by Ryobi Printing Machinery.
80 and printed, a printed matter with a good image with ink adhering to the transfer portion was obtained. Also 1
Even the 000th image was as good as the initial image.
〈発明の効果〉
以上のように、本発明によると、感熱転写方式により、
乾式処理により簡便に、ディジタルデータから直接オフ
セット印刷版を作製することができ、しかも得られる画
質は良好であり、耐剛性も良好である。<Effects of the Invention> As described above, according to the present invention, by the thermal transfer method,
Offset printing plates can be easily produced directly from digital data by dry processing, and the image quality obtained is good and the rigidity resistance is also good.
Claims (2)
性粉体と結着剤樹脂を少なくとも含有し分散してなる親
水層、さらに画像状のガラス転移温度が５０℃から１１
０℃の範囲にある熱可塑性樹脂を含有する非親水層を順
次設けてなる平版印刷版。(1) A hydrophilic layer containing and dispersing at least a hydrophilic powder and a binder resin with a Beck smoothness of 500 seconds or more, and an image-like glass transition temperature of 50°C to 11°C on a substrate.
A lithographic printing plate comprising sequentially provided non-hydrophilic layers containing a thermoplastic resin at a temperature in the range of 0°C.
粉体と結着剤樹脂を少なくとも含有し分散してなる親水
層を設けた版シートと、基板上に非浸水性でガラス転移
温度が５０℃から１１０℃の範囲にある熱可塑性樹脂を
含有する転移層を少なくとも設けた転写シートを、とも
に基板を外観にして重ね合わせ、転写シート側から画像
状に加熱し、転写層を部分的に版シート上に転写するこ
とを特徴とする平版印刷法の製造方法。(2) A printing sheet with a hydrophilic layer on the substrate having a Beck smoothness of 500 seconds or more and containing and dispersing at least a hydrophilic powder and a binder resin, and a non-water-permeable glass transition on the substrate. Transfer sheets provided with at least a transfer layer containing a thermoplastic resin having a temperature in the range of 50°C to 110°C are placed one on top of the other with the substrate as the external appearance, and heated from the transfer sheet side in an imagewise manner to partially transform the transfer layer. A method for producing a lithographic printing method, which is characterized by transferring the image onto a plate sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63222857A JPH0771876B2 (en) | 1988-09-06 | 1988-09-06 | Planographic printing plate and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63222857A JPH0771876B2 (en) | 1988-09-06 | 1988-09-06 | Planographic printing plate and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0270495A true JPH0270495A (en) | 1990-03-09 |
| JPH0771876B2 JPH0771876B2 (en) | 1995-08-02 |
Family
ID=16788982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63222857A Expired - Lifetime JPH0771876B2 (en) | 1988-09-06 | 1988-09-06 | Planographic printing plate and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0771876B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0709228A1 (en) * | 1994-10-11 | 1996-05-01 | Minnesota Mining And Manufacturing Company | Thermal transfer donor and receptor for lithographic printing applications |
-
1988
- 1988-09-06 JP JP63222857A patent/JPH0771876B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0709228A1 (en) * | 1994-10-11 | 1996-05-01 | Minnesota Mining And Manufacturing Company | Thermal transfer donor and receptor for lithographic printing applications |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0771876B2 (en) | 1995-08-02 |
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