How to Store and Protect Unframed Prints and Posters

Quick answer

Store unframed prints flat, interleaved with acid-free tissue, inside a rigid archival box or portfolio kept in a cool, dark, dry place. For risograph and screen prints, avoid plastic bags that trap moisture and never store them rolled for long periods — flat storage is the safest way to prevent bending, fading, and surface damage.

You bought a print because it caught your eye — the color, the texture, the story behind it. But until it's framed, it's vulnerable. Light, humidity, dust, and the wrong storage materials can dull inks, warp paper, and leave permanent marks. The good news is that protecting unframed prints doesn't require a studio setup. A few careful choices will keep your artwork flat and bright for years.

This guide walks you through a simple storage process that works for everyday posters, limited-edition screen prints, and risograph prints. Along the way, you'll learn the small mistakes that cause most damage and how to avoid them.

Start with a clean, flat surface and clean hands

Before you handle any print, clear a table or counter and wash your hands. Oils and dirt transfer easily to paper, especially to uncoated stocks like the recycled coffee-cup paper used in risograph printing. If you're working with a textured or porous print, consider wearing clean cotton gloves — they prevent fingerprints without reducing your grip. Avoid hand lotion right before handling paper; it can leave invisible marks that show up later.

Lay down a sheet of acid-free tissue or clean, unprinted newsprint as a work surface. This gives you a buffer between the print and the table, so a stray crumb or rough spot doesn't press into the paper while you work. It also gives you a clean place to slide interleaving sheets under the print as you stack.

• Never handle prints with wet or freshly sanitized hands — alcohol and moisture can smear some inks.
• Work away from open windows or fans; a sudden gust can send a lightweight print flying.

Interleave with acid-free tissue or glassine

Every print that touches another print should have a barrier between them. Acid-free tissue paper or glassine (a smooth, translucent paper) prevents inks from offsetting onto the back of the print above it. This matters most for freshly printed pieces, which can still be slightly tacky, and for risograph prints, where the soy or vegetable-based inks sit on the surface rather than soaking deep into the paper.

Cut the interleaving sheets slightly larger than the prints so edges don't catch. Place one sheet on top of each print before adding the next. If you're stacking several prints of different sizes, keep the largest at the bottom and the smallest on top — this prevents smaller prints from sliding around and getting their corners bent.

• Avoid newspaper or standard tissue paper — their acids can yellow prints over time.
• For very textured prints, use smooth glassine rather than tissue, which can leave lint behind.

Choose a rigid, archival storage container

The container is your print's first line of defense. A flat archival box or portfolio with a rigid base and lid keeps prints from bending and blocks dust and light. Look for boxes labeled acid-free, lignin-free, and buffered — these materials won't off-gas harmful compounds or stain the paper. If you can't find a dedicated art box, a clean, sturdy cardboard portfolio works as a short-term solution, but line it with acid-free tissue first.

Size matters: choose a box that fits your largest print with a little room to spare. Too much empty space lets prints shift and curl; too little means you'll be forcing corners in, which causes creases. For a growing collection, consider a box that holds up to A2 or A1 sizes, since those are common for screen prints.

• Plastic storage bins can trap moisture — if you use one, add a silica gel packet and check it monthly.
• Never store prints in a cardboard tube for more than a few weeks; long-term rolling can set a curl that's hard to reverse.

Control light, heat, and humidity

Light is the most common cause of fading, and it's cumulative — even a few hours of indirect sunlight each day adds up. Store your prints in a dark closet, drawer, or cabinet. If that's not possible, keep them in an opaque box and away from windows. Heat and humidity are the other big threats: aim for a stable environment around 60–70°F (15–21°C) with relative humidity between 40% and 50%. Avoid attics, basements, garages, and bathrooms, where swings in temperature and moisture are common.

Risograph and screen prints are especially sensitive to moisture because their inks sit on the paper's surface. Damp conditions can cause the paper to ripple and the inks to bloom or offset. If you live in a humid climate, a sealed archival box with a few silica gel packets can help, but replace the packets regularly.

• Keep prints away from radiators, space heaters, and air conditioning vents.
• Don't store prints directly on a concrete floor — use a shelf or a pallet to allow air circulation.

Handle and inspect periodically

Once your prints are stored, leave them alone as much as possible. Every time you handle a print, you risk a crease, a fingerprint, or a tear. When you do need to check on them — say, every six months — slide your hands under the interleaving sheets rather than lifting the print itself. Support the print from below with both hands; never pick it up by one corner.

While inspecting, look for signs of trouble: wavy edges (moisture), yellowing (acidic materials), or offset ink (too much pressure or heat). If you spot any of these, replace the interleaving and storage materials and move the box to a drier, cooler spot. For valuable or limited-edition prints, note the date and condition in a simple log so you can track changes over time.

• If a print has been rolled, lay it flat under a clean board weighted at the corners for a few days to relax the curl.
• Never use tape, adhesive labels, or rubber bands on or around a print — they leave residue and can tear paper.

Your print storage step-by-step

1. Prepare a clean, flat workspace: Clear a table, wash and dry your hands, and lay down acid-free tissue or clean newsprint. Avoid working near open windows or fans. Checkpoint: your hands should be clean and dry, and the surface free of crumbs or grit.
2. Interleave each print: Place a sheet of acid-free tissue or glassine between every print. Cut sheets slightly larger than the artwork so edges don't catch. Mistake to avoid: using newspaper or standard tissue paper, which can yellow prints over time.
3. Stack largest to smallest: Build your stack with the biggest print at the bottom and the smallest on top. This keeps corners from bending and prevents smaller prints from sliding. Checkpoint: the stack should sit flat with no overhanging edges that could curl.
4. Place in a rigid archival box: Choose an acid-free, lignin-free box or portfolio that fits your largest print with a little room to spare. Avoid plastic bins that trap moisture. Mistake to avoid: forcing prints into a box that's too small — this causes creases.
5. Store in a cool, dark, dry place: Keep the box in a closet or drawer away from windows, radiators, and damp areas. Aim for stable temperature and humidity. Checkpoint: the storage spot should be dark, dry, and not subject to extreme temperature swings.
6. Inspect every six months: Open the box, check for wavy edges, yellowing, or ink offset, and replace interleaving if needed. Handle prints from below with both hands. Mistake to avoid: lifting prints by one corner or handling them with bare, oily hands.

Storage notes for specific prints

• A5 Hex-B-Gone Risograph Print: Risograph printed in Margate using vegetable-based inks on paper made from 80% recycled coffee cups. The recycled, uncoated paper and surface-printed inks make this print more sensitive to moisture and abrasion than a standard poster. Store it flat with acid-free interleaving and keep it away from damp areas.
• A2 Rare Artefacts: Silk screen print inspired by Mexican folk art and handmade traditions. At A2 size, this print needs a large flat box or portfolio. Its hand-pulled inks can be prone to offsetting, so interleave with glassine and avoid stacking heavy items on top.
• Matchbox Risograph Print: Printed in the UK on paper made from at least 80% recycled coffee cups using four inks: Kelly Green, Neon coral, Sunflower and Seafoam. Measures 19.4cm square. The square format fits neatly in smaller archival boxes, but the four-ink risograph process means the surface can be uneven. Use smooth interleaving and store flat to prevent the inks from pressing into other prints.

Storing unframed prints well comes down to a few consistent habits: keep them flat, separate them with acid-free interleaving, use a rigid box, and keep that box in a stable, dark, dry spot. Do that, and your risograph, screen print, and poster purchases will stay in frame-ready condition until you're ready to hang them.