JPS6139572Y2

JPS6139572Y2 -

Info

Publication number: JPS6139572Y2
Application number: JP17449278U
Authority: JP
Priority date: 1978-12-18
Filing date: 1978-12-18
Publication date: 1986-11-13
Also published as: JPS5590444U

Description

【考案の詳細な説明】この考案は凸版印刷用ゴム印版などの印版に関
する。[Detailed description of the invention] This invention relates to printing plates such as rubber stamp plates for letterpress printing.

凸版印刷に於いては、印版の印刷面に十分なイ
ンキを盛ると印刷面の周辺にインキが盛り上る現
象、所謂マージナルゾーンといわれる現象がしば
しば現われ、合成樹脂体に印刷するような場合そ
の過剰インキが文字等の画面より外に流れ鮮明な
印刷ができないという欠点があつた。 In letterpress printing, when a sufficient amount of ink is applied to the printing surface of the printing plate, a phenomenon called the so-called marginal zone, in which ink swells up around the printing surface, often occurs. The disadvantage was that excess ink ran outside the screen of characters, etc., making it impossible to print clearly.

この考案は前記の点に鑑みてなされたものであ
つて、その要旨は、画面に対応する凸部の周縁部
が僅かに低くされてなる印版に存する。 This invention was made in view of the above points, and its gist resides in a printing plate in which the peripheral edge of the convex portion corresponding to the screen is slightly lowered.

以下、この考案の印版を図面の実施例を参照し
ながら説明する。 Hereinafter, the printing plate of this invention will be explained with reference to the embodiments shown in the drawings.

１はゴムなどからなる印材でその表面に文字、
模様などの画面に対応する凸部２が設けられてい
る。凸部２の周縁部２１は僅かに低くされてい
る。この周縁部２１は凸部２の大きさその他によ
つて必ずしも一定しないが、その幅は0.5mm以
下、たとえば0.2〜0.3mm程度とされ、またその深
さは0.1mm以下たとえば数十ミクロン程度と凸部
２に対して僅かに低くされている。 1 is a stamp material made of rubber etc. with letters on the surface,
A convex portion 2 corresponding to a screen such as a pattern is provided. The peripheral edge 21 of the convex portion 2 is slightly lowered. Although the width of the peripheral edge 21 is not necessarily constant depending on the size of the convex portion 2 and other factors, its width is 0.5 mm or less, for example, about 0.2 to 0.3 mm, and the depth is 0.1 mm or less, for example, about several tens of microns. It is slightly lower than the convex portion 2.

尚、この実施例では凸部２の中央部２２を深さ
10ミクロン程度凹こませているが、こうすること
によつてインクの画面周辺への溢流が防止するこ
とになり凸部２の周縁部の凹み２１と相まつてマ
ージナルゾーン現象の発生をより確実に防止する
ので好ましい。 In this embodiment, the center portion 22 of the convex portion 2 is
Although the depression is approximately 10 microns, this prevents the ink from overflowing to the periphery of the screen, and together with the depression 21 on the periphery of the protrusion 2, the occurrence of the marginal zone phenomenon is more secure. This is preferable because it prevents

この考案の印版は、上記のとおり画面に対応す
る凸部の周縁部が僅かに低くされているから、そ
の周縁部に凸部のインキが流れてもそれ以上外部
に流れることがなく鮮明な図面を印刷することが
できる。 In the printing plate of this invention, as mentioned above, the periphery of the convex part corresponding to the screen is slightly lowered, so even if the ink of the convex part flows to the periphery, it does not flow any further to the outside, resulting in a clear image. Drawings can be printed.

[Brief explanation of the drawing]

第１図はこの考案印版の実施例の平面図、第２
図は第１図−線の拡大断面図である。１……印材、２……凸部、２１……凸部の周縁
部。 Figure 1 is a plan view of an embodiment of this invented printing plate, Figure 2
The figure is an enlarged sectional view taken along the line of FIG. 1... Stamp material, 2... Protrusion, 21... Periphery of the protrusion.

Claims

[Scope of utility model registration request]

A printing plate in which the periphery of the convex portion corresponding to the screen is slightly lowered.