In a reduction linocut you print every colour from one block. After each pass you cut away more of it, so the block that printed layer one no longer exists by layer three. There is no going back, no reprinting a spoiled sheet later, and no adding to the edition next year.
That constraint is not a drawback to work around. It is the thing that makes reduction prints look the way they do — perfectly registered, because every colour came off the same block — and it is what your planning has to respect.
1. Fix the edition size before you cut anything
This comes first because it cannot be changed later. Whatever number of sheets you print in the first pass is the absolute ceiling on the edition, and it will only go down from there.
Print more sheets than you want in the finished edition. How many more depends on how many passes you are planning and how confident you are, but the losses accumulate: a sheet spoiled at layer six has taken six layers of work with it. Printmakers doing long reductions routinely start with half again as many sheets as the edition they intend to sign.
2. The order runs light to dark
This is the working rule the whole method is built on, and the reason is simply what ink does. A light colour printed over a dark one mostly disappears. Relief inks are not opaque enough to cover, so each pass has to be able to sit convincingly on top of what is already there.
So: palest first, darkest last.
The rule is slightly more subtle than "darker"
Thinking purely in terms of light and dark will eventually mislead you. The real constraint is that each successive colour must generally be darker or less saturated than the one before.
That second half matters. A muted, greyed-off colour can successfully follow a brighter one of similar lightness, because it is not trying to out-shout what is underneath. What does not work is a brilliant, saturated colour arriving late and expecting to read clearly over something already printed. If your plan has a vivid orange as the fifth of six passes, it is worth testing that before you commit the edition to it.
3. Transparency, and what it costs
Because each layer sits over the last, transparency is doing a lot of the work. A transparent layer lets the colour beneath show through and mix optically, which is how reduction prints get depth from a small number of inks.
You make ink transparent with extender. And the proportions involved surprise people the first time: a printmaker working on a fifteen-layer reduction linocut described mixing at around 95% extender to get the transparency the print needed.
Extender is a transparent filler. It cuts colour strength without adding white, and it adjusts the consistency and viscosity of the ink.
Opaque white also cuts strength, but it makes the colour chalky and, more importantly, opaque — which defeats the entire mechanism a reduction print depends on. They are not interchangeable, and reaching for the wrong tube is one of the more common ways a planned layer fails to do what the plan expected.
Extender at that proportion has an honest cost, and it is worth knowing before you meet it: the ink goes sticky and stringy, and starts flicking off the roller onto the bar and everywhere else. That is not a sign you have done something wrong. It is what heavily extended ink is like.
Judging the consistency
The old test is a sound one. Roll the ink out on the slab and listen. Correctly conditioned relief ink makes a soft, even hiss — printmakers write it as "zzz". Silence usually means too thin; a slapping or tearing noise means too stiff or too much on the slab.
4. Work out where each colour lands before you carve
Every pass is a decision about what to keep. Anything you cut away at stage three is showing the colour from stage two forever. So the planning question is not "what shall I print next" but "what areas am I finished with".
Practically, that means before you start you want:
- A separation of the image into the flat colours you are actually going to print, in order.
- For each pass, which areas get cut away and which survive.
- The ink mix for each pass — including the extender proportion, because a nominally "brown" pass at 90% extender is not the brown in the tin.
- A registration method decided and set up, because reduction gives you no second chances on alignment either.
5. Print the whole edition at each pass, in one session
Every sheet must receive layer one before the block is touched. Mix enough ink for the full run, and print all of it. If you run out of ink halfway through a pass, the colour you mix to finish will not be the colour you started with, and the difference will be visible when the edition is laid out together.
Let each pass dry properly before the next. Oil-based relief inks in particular will lift or smear if you rush them, and a smeared layer four is a lost sheet with four layers in it.
Reduction Ladder plans the whole sequence — the colour separation, the printing order, and the ink for each pass — and will tell you plainly when a sequence is not physically achievable rather than producing a plausible plan that fails at the press.
Mixing Slab works out how to mix a given colour from the inks you actually own, in parts, percentages and grams.
Where this comes from
- Laura Boswell, "How it's made: reduction linocut my way" — the fifteen-layer print mixed at around 95% extender, and the honest account of what that does to the ink's handling.
- Handprinted, "Reduction lino cut" — the light-to-dark rule, and the "zzz" sound test for ink consistency.
- Penrose Press, "How to make sense of reduction linocuts" — the clearest statement I have found of the real constraint: each successive colour darker or less saturated.
- Extender (ink) — what extender is: a transparent filler that cuts strength without adding white.