Following the success of my four posters for London Transport Museum, currently on the network of London underground stations, I have been asked by Michael, the commissioner, to edition the designs as screen prints. I jumped at the opportunity, and embraced the task!

This has been an interesting challenge because although the artwork for the posters was made using paper cutouts, one great joy of digital print production means you don’t have to separate each colour to print; CMYK does it’s thing. However, screen printing requires far more consideration of separate colour on each of the layers as well as registration – the accuracy of each colour layer when printing. Overprinting can result in muddy colours if not fully considered. For the editions of prints I made some artwork adjustments on Adobe Illustrator enabling me to create the positive artwork for each of the four colours in each print, ready to expose photographically on the screens. You can see in my composite image, top right, the black print on acetates which are the screen positives, that I used to expose the images.

I love mixing colours to match my references and I take pride in not using colours straight from the pot, but to always see the nuance of hues. I make colours darker using purples and greens, rarely black. I used the final posters to get the right colours, and daylight is always essential. Ink and paper surfaces always give different qualities to contend with too. The final colours are certainly rather bright! Screen printing on paper is also very different to screen printing on fabric, so you have to get your head around the differences including remembering to flood your screen (pulling a layer of ink across) between each print, and using the vacuum on the print bed (to hold the paper firm).

However tired I am, when I am printing I am absorbed in the process – rarely noticing hours passing, and missing the need to feed. This is a good thing as my week as been ridiculously busy on all sides. Printing requires systematic thinking, and at least one clean hand. Preparing screens, mixing colours and registering each colour on the acetate first all needs to be organised. I love it when I’m in the rhythm of editioning.

A deadline to hand the first print from each edition to the commissioner this weekend focused the mind, and when trimmed, signed and wrapped I was really proud of the prints. I was even more pleased when I met up with Michael to give them to him. He appeared to be joyfully moved by the results – holding one print up to the fellow coffee drinkers in pride… phew! They are off to be framed and auctioned at a London Transport Museum event at the Victoria and Albert Museum later this week.

This whole project has taken so many months (years) to come good, but throughout the process I have felt trusted by Michael to do what I do best. He has great confidence in his choice of designers spanning the years, and allows us to get on with the job without interfering with the outcome. His twenty plus years of commissioning poster designers has led him to influence the direction of graphic artwork on London underground, creating the archive for the future through the choice of creative hands and minds, but not by telling the designers what to do. It takes trust and judgement on his part, but in turn I think I’ve created my best work yet. In the many conversations over these years I’ve had with Michael he listens, he wants to hear my opinion on things; we have good discussions – he knows about a lot of things. He also often gets carried away with future ideas and possibilities – I like that, we should all get excited by ideas. Thanks Michael!