JPH03259930A - Transparent plastic printing sheet - Google Patents
Transparent plastic printing sheetInfo
- Publication number
- JPH03259930A JPH03259930A JP6063890A JP6063890A JPH03259930A JP H03259930 A JPH03259930 A JP H03259930A JP 6063890 A JP6063890 A JP 6063890A JP 6063890 A JP6063890 A JP 6063890A JP H03259930 A JPH03259930 A JP H03259930A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- transparent plastic
- printing
- blocking
- unevenness
- 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
- 229920003023 plastic Polymers 0.000 title claims abstract description 9
- 238000007639 printing Methods 0.000 title claims description 15
- 239000002985 plastic film Substances 0.000 claims abstract description 10
- 238000000691 measurement method Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 abstract description 9
- 238000007645 offset printing Methods 0.000 abstract description 6
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 2
- 239000002981 blocking agent Substances 0.000 description 4
- 239000002216 antistatic agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明はオフセット印刷や平版グラビヤ印刷等に使用す
る時、良好な印刷性を有する透明プラスチックシートに
間する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention is applied to transparent plastic sheets having good printability when used in offset printing, lithographic gravure printing, etc.
（従来の技術および発明が解決しようとする課題）従来
、−船釣に使用されている透明プラスチックシートに印
刷を施し、折り曲げ罫線を設けて箱状に組み立てる人形
ケースや歯刷子ケース等か多く使用されている。これら
の透明プラスチックシートにオフセット印刷等を練す工
程において所定サイズのシートが一枚づつ高速で供給さ
れる時、シート同士がくっつき合ってブロッキングする
ため、シートの表面にでんぷん粉末等のブロッキング防
止剤を散布しているが、オフセット印刷機内でブロッキ
ング防止剤が、ゴムロールや加圧ロールに付着し、イン
キ抜は等の不良が発生する。そのため所定枚数印刷する
毎に印刷機を停止させて、ゴムロールや加圧ロールを布
等でふき取る必要があり、プラスチックシートの印刷は
不良率が高く作業性が劣り結果として高い印刷コストと
なっている。(Prior Art and Problems to be Solved by the Invention) Conventionally, doll cases and toothbrush cases, etc., are often used in which transparent plastic sheets used for boat fishing are printed, folded with ruled lines, and assembled into a box shape. has been done. When sheets of a predetermined size are fed one by one at high speed in the process of offset printing etc. to these transparent plastic sheets, the sheets stick together and block, so anti-blocking agents such as starch powder are applied to the surface of the sheet. However, the anti-blocking agent adheres to the rubber rolls and pressure rolls in the offset printing machine, causing problems such as ink removal. Therefore, it is necessary to stop the printing machine every time a predetermined number of sheets are printed and wipe the rubber roll and pressure roll with cloth, etc. Printing on plastic sheets has a high defect rate and poor workability, resulting in high printing costs. .
尚ブロッキング防止剤の散布量を極小にしたり、無くす
るとシートのブロッキングが強くなり供給出来ない。If the amount of anti-blocking agent to be sprayed is minimized or eliminated, the blocking of the sheet becomes strong and cannot be supplied.
（課題を解決するための手段）
本発明はブロッキングしに＜＜シかも透明性に優れた印
刷用透明プラスチックシートを提供せんとするものであ
り、柔軟温度（ＪＩＳ Ｋ−６７３４）が５０℃以上で
あり、ヘーズ（ＪＩＳ Ｋ−７１０５測定法Ａ）が２〜
７％であって、シート表面の凹凸の高さが１０点平均で
２〜５μであり、裏面の凹凸の高さが１０点平均で２μ
以下で、表面固有抵抗（ＪＩＳ Ｋ−６９１１）が、２
３℃５０％ＲＨの条件下で１．Ｏｘｌｏ”Ω〜９．０×
１０１５Ωである印刷用透明プラスチ・ンクシートであ
る。(Means for Solving the Problems) The present invention aims to provide a transparent plastic sheet for printing that has excellent transparency while blocking. and haze (JIS K-7105 measurement method A) is 2~
7%, the height of the unevenness on the sheet surface is 2 to 5μ on the average of 10 points, and the height of the unevenness on the back side is 2μ on the average of 10 points.
Below, the surface resistivity (JIS K-6911) is 2
1. Under the conditions of 3°C and 50% RH. Oxlo”Ω～9.0×
This is a transparent plastic ink sheet for printing with a resistance of 1015Ω.
本発明はプラスチックシートの表面に凹凸を設けること
によりブロッキングを防止するとともに、帯電防止剤を
配合することにより表面固有抵抗を下げ静電気の帯電を
少なくしてプロ・ンキングを防止するが、一方、本発明
の目的は透明性のあるシートを提供することであるから
、透明性Ｃ：悪影響を及ぼす凹凸の高さは重要な課題で
ある。The present invention prevents blocking by providing unevenness on the surface of the plastic sheet, and also reduces the surface resistivity by adding an antistatic agent to reduce static electricity charging, thereby preventing blocking. Since the purpose of the invention is to provide a transparent sheet, transparency C: the height of unevenness that has an adverse effect is an important issue.
そこで以下、硬質塩化ビニルシートを例として挙げなが
ら説明する。−船釣なカレンダー法によりシートを加工
するが、通常プラスチ・ンク業界で使用されている帯電
防止剤が配合されてり】るポリ塩化ビニル原料を使用し
、カレンダーから出てきたシートの温度が１３０〜２０
０℃となるように調整し、ロール表面の凹凸の高さの差
が３〜１０μのエンボスロール（ゴムでも金属でもよい
）を用いてシート表面を強く押圧することにより、シー
ト表面に２〜５μのエンボスを設けることが出来る。Therefore, the explanation will be given below using a hard vinyl chloride sheet as an example. -The sheet is processed using a calendering method, but the temperature of the sheet that comes out of the calender is low. 130-20
The temperature is adjusted to 0℃, and the sheet surface is strongly pressed using an embossing roll (rubber or metal may be used) with a height difference of 3 to 10μ between the unevenness of the roll surface. Emboss can be provided.
一方、裏面は２μ以下の凹凸の高さとする。それ以上だ
と透明性が劣りケース等の使用は不可となる。種々テス
トした結果、シート表面は２〜５μのエンボスで、裏面
は２μ以下の凹凸を有するシートであればヘーズ（くも
り度）が２〜７％に入り、印刷性、外観性も良好である
ことか判明した。特に表面固有抵抗（ＪＩＳ Ｋ−６９
１１）が１．０ ｘｌｏ”Ω〜９．０ Ｘ１０１５Ω内
であれば一般的なオフセット印刷機の供給部でのブロッ
キングトラブルもなく良好に１枚毎に高速で印刷が可能
であった。しかも表面の２〜５μのエンボス面に印刷す
ることによって従来のシートよりもインキののりが良く
インキ密着性が大幅に良くなった。これは凹凸の高さ面
にインキが入り込むためと考えられ、従来シートにない
特長である。しかし５μよりも大きいエンボスにすると
、凸部の頂部にインキがのらない問題か発生する。これ
はオフセット印刷のインキ厚さか２〜４μの為と思われ
る。また、シート表面に２〜５μのエンボスを設けるこ
とによりシート同士や、他の物との擦れによって発生す
るすり傷の発生も少なく、又、目立たないという特長を
有する。しかし５μを越えると透明性が劣りへ一ズが７
％以上となる。On the other hand, the height of the unevenness on the back surface is 2μ or less. If it is more than that, the transparency will be poor and the use of cases etc. will be impossible. As a result of various tests, it was found that if the sheet surface has an embossment of 2 to 5 μm and the back side has an unevenness of 2 μm or less, the haze (cloudiness) is between 2 to 7%, and the printability and appearance are good. It turned out. Especially surface resistivity (JIS K-69
11) was within the range of 1.0xlo"Ω to 9.0x1015Ω, it was possible to print each sheet at high speed without any blocking problems in the feed section of a general offset printing machine.Moreover, it was possible to print each sheet at high speed. By printing on the embossed surface of 2 to 5μ, the ink spreads better and the ink adhesion is significantly improved compared to the conventional sheet.This is thought to be because the ink enters the uneven height surface, and compared to the conventional sheet. However, if the embossing is larger than 5μ, there will be a problem that the ink will not get on the top of the convex part.This seems to be due to the ink thickness of offset printing, which is 2 to 4μ. By providing embossments of 2 to 5μ on the surface, there are fewer scratches caused by rubbing between sheets or other objects, and they are less noticeable.However, if the thickness exceeds 5μ, transparency deteriorates. Izu is 7
% or more.
なお、柔軟温度が５０℃未満だとＵＶ（紫外線硬化）イ
ンキ使用時の紫外線によりシートが加熱された時に柔か
くなるため、印刷時に変形し易い。Note that if the flexibility temperature is less than 50° C., the sheet becomes soft when heated by ultraviolet rays when UV (ultraviolet curing) ink is used, so it is likely to be deformed during printing.
柔軟温度を５０℃以上に設定するためにはポリ塩化ビニ
ルの場合、可塑剤を少なくすることにより容易に連敗さ
れる。In the case of polyvinyl chloride, in order to set the softening temperature to 50° C. or higher, reducing the amount of plasticizer easily leads to continuous failure.
また、ヘーズ（くもり度） （ＪＩＳ Ｋ−７１０５
測定法Ａ）が２〜７％以内とは、２％未満だと透明性が
良すぎてシートの傷や汚れの付着が目立ち、７％を越え
ると透明性が悪く透明ケースとしての品質が劣るからで
ある。ヘーズは、シート材質と表面の凹凸の大きさによ
り調整することができる。In addition, haze (cloudy degree) (JIS K-7105
Measurement method A) within 2-7% means that if it is less than 2%, the transparency will be too good and scratches and dirt on the sheet will be noticeable, and if it exceeds 7%, the transparency will be poor and the quality of the transparent case will be poor. It is from. The haze can be adjusted by the sheet material and the size of the surface irregularities.
さらに表面固有抵抗が１．ＯｘｌＯ１１Ω未満だと原料
樹脂中に帯電防止剤か多く配合されるため、シート表面
に帯電防止剤が吹き出し易くなり、印刷インキの密着性
が劣るとともにシートの滑り性が悪くなりブロッキング
の原因となる。また、９．０×１０１５Ωを越えると帯
電防止性が劣り、湿度が低い条件下では、静電気か発生
しシートのブロッキングの原因となったり、汚れ付着の
原因となる。Furthermore, the surface resistivity is 1. If OxlO is less than 11Ω, a large amount of antistatic agent will be blended into the raw resin, making it easy for the antistatic agent to blow out onto the sheet surface, resulting in poor adhesion of printing ink and poor sheet slipperiness, causing blocking. Moreover, if it exceeds 9.0×10 15 Ω, the antistatic properties will be poor, and under conditions of low humidity, static electricity will be generated, causing blocking of the sheet or staining.
また印刷時にインキが静電気の影響によりむらになった
り、印刷不良の発生原因となる。Furthermore, during printing, ink becomes uneven due to the influence of static electricity, which causes printing defects.
（発明の効果）
本発明は柔軟温度（ＪＩＳ Ｋ−６７３４）が５０℃以
上でありヘーズ（ＪＩＳ Ｋ−７１０５測定法Ａ）が２
〜７％であって、シート表面の凹凸の高さが１０点平均
で２〜５μであり、裏面の凹凸の高さが１０点平均で２
μ以下で、表面固有抵抗（ＪＩＳに−６９１１）が２３
℃５０％ＲＨの条件下で１．０ ｘ１０１１Ω〜９．Ｏ
Ｘ１０１５Ωである印刷用透明プラスチックシートであ
るので、ブロッキング防止剤を散布せずにブロッキング
を防止出来るため印刷時のゴムロールや加圧ロールの汚
れが全くなくなり、高速で連続運転が可能となり、大幅
なコストダウンと歩留向上が実現された。また、印刷イ
ンキの密着性か大幅に向上した。さらにシート表面、裏
面の傷入り防止作用があり、しかも傷が目立たなくなり
大幅な外観性向上となった。(Effect of the invention) The present invention has a softness temperature (JIS K-6734) of 50°C or higher and a haze (JIS K-7105 measurement method A) of 2.
~7%, the height of the unevenness on the sheet surface is 2 to 5 μ on the average of 10 points, and the height of the unevenness on the back side is 2 μ on the average of 10 points.
Below μ, the surface resistivity (JIS -6911) is 23
1.0 x 1011Ω~9. under the condition of ℃50%RH. O
Since this is a transparent plastic sheet for printing with a resistance of 1015 ohms, blocking can be prevented without spraying anti-blocking agents, so there is no dirt on the rubber roll or pressure roll during printing, and continuous operation at high speed is possible, resulting in significant cost savings. Achieved lower yield and improved yield. Additionally, the adhesion of printing ink has been significantly improved. Furthermore, it has the effect of preventing scratches on the front and back surfaces of the sheet, and also makes scratches less noticeable, resulting in a significant improvement in appearance.
Claims (1)
ヘーズ（ＪＩＳＫ−７１０５測定法Ａ）が２〜７％であ
って、シート表面の凹凸の高さが１０点平均で２〜５μ
であり、裏面の凹凸の高さが１０点平均で２μ以下で、
表面固有抵抗（ＪＩＳＫ−６９１１）が２３℃５０％Ｒ
Ｈの条件下で１．０×１０＾１＾１Ω〜９．０×１０＾
１＾５Ωである印刷用透明プラスチックシート。The softness temperature (JISK-6734) is 50°C or higher,
The haze (JISK-7105 measurement method A) is 2 to 7%, and the height of the unevenness on the sheet surface is 2 to 5 μ on the average of 10 points.
The height of the unevenness on the back surface is 2μ or less on the average of 10 points,
Surface specific resistance (JISK-6911) 23℃50%R
Under H conditions 1.0 x 10^1^1Ω~9.0 x 10^
A transparent plastic sheet for printing with a resistance of 1^5Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2060638A JP3049073B2 (en) | 1990-03-12 | 1990-03-12 | Transparent plastic sheet for printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2060638A JP3049073B2 (en) | 1990-03-12 | 1990-03-12 | Transparent plastic sheet for printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03259930A true JPH03259930A (en) | 1991-11-20 |
| JP3049073B2 JP3049073B2 (en) | 2000-06-05 |
Family
ID=13148059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2060638A Expired - Lifetime JP3049073B2 (en) | 1990-03-12 | 1990-03-12 | Transparent plastic sheet for printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3049073B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2070712A1 (en) * | 2007-12-14 | 2009-06-17 | Renolit AG | Method of controlling resolution in inkjet printing |
| JP2012011701A (en) * | 2010-07-01 | 2012-01-19 | Mitsui Chemicals Tohcello Inc | Film and method of manufacturing the same |
| JP2017155227A (en) * | 2016-02-26 | 2017-09-07 | 積水化学工業株式会社 | Fireproof sheet and wound body thereof |
-
1990
- 1990-03-12 JP JP2060638A patent/JP3049073B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2070712A1 (en) * | 2007-12-14 | 2009-06-17 | Renolit AG | Method of controlling resolution in inkjet printing |
| WO2009077055A1 (en) * | 2007-12-14 | 2009-06-25 | Renolit Ag | Method of controlling resolution in inkjet printing |
| JP2012011701A (en) * | 2010-07-01 | 2012-01-19 | Mitsui Chemicals Tohcello Inc | Film and method of manufacturing the same |
| JP2017155227A (en) * | 2016-02-26 | 2017-09-07 | 積水化学工業株式会社 | Fireproof sheet and wound body thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3049073B2 (en) | 2000-06-05 |
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