Risograph printing is exclusively spot color based, which is similar to screen printing and printmaking.
Unlike digital printing, there is no option to print in standard color like CMYK. Riso provides a wide variety of ink color options, including many fluorescent colors which are not available in ordinary printing.
Metallic gold is very popular especially in Asia. Of course, we have it.
We now have 22 different colors, and will continue to add more.
In addition, Risograph printing does not require a large amount of special colors to lower the price. Therefore, a relatively small number of special colors has always been a superiority of Risograph printing.
The original marketing principal is actually quite straightforward:If you need to make more than 50 but fewer than 10,000 prints of something, it’s cheaper to do it with a Riso.
Every 2 color layer is printed individually, so colours rarely line up perfectly on top of each other. This gives Riso’s distinctive misregistration an unavoidable part of the process. This is an inherent part of the process that makes each print totally unique. If you are open to imperfections and experimental result, Risograph printing will be perfect for you!
Riso ink is made of soy or rice oil. Which is environmentally-friendly. This type of ink stays open many hours after printing and will smudge if enough pressureIs applied to it.
混色 Color Overlapping
With colors overlapping, it's fun to have surprising results. Like all we know that overlapping yellow and blue would produce green. And yet with different density or different yellow and blue, you can have variety of green. For instance, we have 3 kinds of yellow and 4 kinds of blue, how many tone of green would you probably get?
色塊&水痕 Uneven Coverage
Sometimes, there will be some uneven coverage of colors appear on prints. This situation happens especially if you print with high color intensity and large area.
The file for the Risograph must contain only grayscale information and will be transformed into halftones automatically by the RIso. Each file can contain different gray values. 100% black in each color layer, will print out as 100% of whichever color you are printing. 60% black will print as 60% and so on.
滾輪印 Roller Marks
Paper is fed through the Risograph with a rubber wheel. This applies pressure to ink, which can leave a mark on your artwork. For artwork with heavy ink coverage, roller marks may occur in the area shown in this graphic aside.
1946年 羽山昇 於東京成立了一間蠟紙印刷店
|Noboru Hayama, the Inventor of the Risograph machine, started his business in 1946.|
He established a mimeograph printing company in Tokyo, Japan.
After Mr.Hayama invented the first RISO printer duplicator, this printing store changed the name of the company to “Riso Kagaku Corporation”.
In Japanese speaking, “Riso”means “ideal” and “Kagaku” means “science”.