Riso Ink Basics (2026): Colors, Types, and Costs | chameleon

Yes — riso ink uses soy or rice bran oil as its carrier base. It contains no petroleum solvents and releases no harmful VOCs during printing.

Safe for schools, offices, and food-adjacent environments. Chameleon compatible ink carries MOAH/MOSH certification confirming mineral oil safety compliance.

How Many Colors Does Riso Ink Come In?

Because riso ink is semi-transparent, layering two colors creates a third — dramatically expanding the effective palette.

Browse the full compatible ink range by series →

Is There White Riso Ink?

White riso ink does not exist as a standard product for RISO ComColor machines. The ink is semi-transparent by design — it relies on the paper's white base to create light tones.

For risograph stencil machines (SF/RZ series), some specialty suppliers offer white ink for dark paper, but it is not part of the standard RISO product line.

What Is Riso Black Ink?

Black is the most widely used riso ink color — available in every series from the classic F2 Type to GL, GD, FT, FW, X1 and CC.

What Is Riso Ink F2 Type?

F2 Type is the ink format used in RISO's older stencil duplicator machines — SF, RZ and EZ series. Tube-format cartridge, primarily available in Black.

Is Riso Ink Waterproof?

Riso ink is not fully waterproof. Once fully dried into uncoated paper, it becomes relatively water-resistant — but will smear if wet before drying.

For water-resistant applications, finishing with a matte laminate is recommended.

Does Riso Ink Dry — and How Long Does It Take?

Faster on uncoated, absorbent paper. Coated or glossy stock slows drying and risks smearing.

How Long Does Riso Ink Last in Storage?

Store at room temperature, away from direct sunlight and heat. Do not freeze. Above 30°C, reduce buffer stock to 3 months.

How Much Does Riso Ink Cost?

Compatible ink from a certified manufacturer delivers equivalent output at a fraction of OEM cost. Browse Chameleon pricing by series →